From 8b48463f89429af408ff695244dc627e1acff4f7 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Tue, 3 Dec 2013 08:49:16 +0800 Subject: ACPI: Clean up inclusions of ACPI header files Replace direct inclusions of , and , which are incorrect, with inclusions and remove some inclusions of those files that aren't necessary. First of all, , and should not be included directly from any files that are built for CONFIG_ACPI unset, because that generally leads to build warnings about undefined symbols in !CONFIG_ACPI builds. For CONFIG_ACPI set, includes those files and for CONFIG_ACPI unset it provides stub ACPI symbols to be used in that case. Second, there are ordering dependencies between those files that always have to be met. Namely, it is required that be included prior to so that the acpi_pci_root declarations the latter depends on are always there. And which provides basic ACPICA type declarations should always be included prior to any other ACPI headers in CONFIG_ACPI builds. That also is taken care of including as appropriate. Signed-off-by: Lv Zheng Cc: Greg Kroah-Hartman Cc: Matthew Garrett Cc: Tony Luck Cc: "H. Peter Anvin" Acked-by: Bjorn Helgaas (drivers/pci stuff) Acked-by: Konrad Rzeszutek Wilk (Xen stuff) Signed-off-by: Rafael J. Wysocki --- arch/ia64/hp/common/aml_nfw.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/hp/common/aml_nfw.c b/arch/ia64/hp/common/aml_nfw.c index 916ffe770bcf..84715fcbba08 100644 --- a/arch/ia64/hp/common/aml_nfw.c +++ b/arch/ia64/hp/common/aml_nfw.c @@ -23,8 +23,7 @@ */ #include -#include -#include +#include #include MODULE_AUTHOR("Bjorn Helgaas "); -- cgit v1.2.3 From c7797d67ceaf33f5f28017d588a15d2c64ab309e Mon Sep 17 00:00:00 2001 From: Yijing Wang Date: Thu, 5 Dec 2013 19:56:39 +0800 Subject: ia64/PCI: Use dev_is_pci() to identify PCI devices Use dev_is_pci() instead of checking bus type directly. Signed-off-by: Yijing Wang Signed-off-by: Bjorn Helgaas --- arch/ia64/hp/common/sba_iommu.c | 2 +- arch/ia64/sn/pci/pci_dma.c | 24 ++++++++++++------------ 2 files changed, 13 insertions(+), 13 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c index 4c530a82fc46..8e858b593e4f 100644 --- a/arch/ia64/hp/common/sba_iommu.c +++ b/arch/ia64/hp/common/sba_iommu.c @@ -255,7 +255,7 @@ static u64 prefetch_spill_page; #endif #ifdef CONFIG_PCI -# define GET_IOC(dev) (((dev)->bus == &pci_bus_type) \ +# define GET_IOC(dev) ((dev_is_pci(dev)) \ ? ((struct ioc *) PCI_CONTROLLER(to_pci_dev(dev))->iommu) : NULL) #else # define GET_IOC(dev) NULL diff --git a/arch/ia64/sn/pci/pci_dma.c b/arch/ia64/sn/pci/pci_dma.c index 3290d6e00c31..d0853e8e8623 100644 --- a/arch/ia64/sn/pci/pci_dma.c +++ b/arch/ia64/sn/pci/pci_dma.c @@ -34,7 +34,7 @@ */ static int sn_dma_supported(struct device *dev, u64 mask) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); if (mask < 0x7fffffff) return 0; @@ -50,7 +50,7 @@ static int sn_dma_supported(struct device *dev, u64 mask) */ int sn_dma_set_mask(struct device *dev, u64 dma_mask) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); if (!sn_dma_supported(dev, dma_mask)) return 0; @@ -85,7 +85,7 @@ static void *sn_dma_alloc_coherent(struct device *dev, size_t size, struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); /* * Allocate the memory. @@ -143,7 +143,7 @@ static void sn_dma_free_coherent(struct device *dev, size_t size, void *cpu_addr struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); provider->dma_unmap(pdev, dma_handle, 0); free_pages((unsigned long)cpu_addr, get_order(size)); @@ -187,7 +187,7 @@ static dma_addr_t sn_dma_map_page(struct device *dev, struct page *page, dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs); - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); phys_addr = __pa(cpu_addr); if (dmabarr) @@ -223,7 +223,7 @@ static void sn_dma_unmap_page(struct device *dev, dma_addr_t dma_addr, struct pci_dev *pdev = to_pci_dev(dev); struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); provider->dma_unmap(pdev, dma_addr, dir); } @@ -247,7 +247,7 @@ static void sn_dma_unmap_sg(struct device *dev, struct scatterlist *sgl, struct sn_pcibus_provider *provider = SN_PCIDEV_BUSPROVIDER(pdev); struct scatterlist *sg; - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); for_each_sg(sgl, sg, nhwentries, i) { provider->dma_unmap(pdev, sg->dma_address, dir); @@ -284,7 +284,7 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl, dmabarr = dma_get_attr(DMA_ATTR_WRITE_BARRIER, attrs); - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); /* * Setup a DMA address for each entry in the scatterlist. @@ -323,26 +323,26 @@ static int sn_dma_map_sg(struct device *dev, struct scatterlist *sgl, static void sn_dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); } static void sn_dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle, size_t size, enum dma_data_direction dir) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); } static void sn_dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction dir) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); } static void sn_dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg, int nelems, enum dma_data_direction dir) { - BUG_ON(dev->bus != &pci_bus_type); + BUG_ON(!dev_is_pci(dev)); } static int sn_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) -- cgit v1.2.3 From d52eefb47d4eb6fe40d4c92bc711dd34a8ce1747 Mon Sep 17 00:00:00 2001 From: Boris Ostrovsky Date: Thu, 5 Dec 2013 13:47:27 -0500 Subject: ia64/xen: Remove Xen support for ia64 ia64 has not been supported by Xen since 4.2 so it's time to drop Xen/ia64 from Linux as well. Signed-off-by: Boris Ostrovsky Signed-off-by: Tony Luck --- arch/ia64/Kconfig | 12 - arch/ia64/Makefile | 2 - arch/ia64/configs/xen_domu_defconfig | 199 ----- arch/ia64/include/asm/acpi.h | 2 - arch/ia64/include/asm/machvec.h | 2 - arch/ia64/include/asm/machvec_xen.h | 22 - arch/ia64/include/asm/meminit.h | 1 - arch/ia64/include/asm/paravirt.h | 1 - arch/ia64/include/asm/pvclock-abi.h | 2 +- arch/ia64/include/asm/sync_bitops.h | 51 -- arch/ia64/include/asm/xen/events.h | 41 -- arch/ia64/include/asm/xen/hypercall.h | 265 ------- arch/ia64/include/asm/xen/hypervisor.h | 61 -- arch/ia64/include/asm/xen/inst.h | 486 ------------ arch/ia64/include/asm/xen/interface.h | 363 --------- arch/ia64/include/asm/xen/irq.h | 44 -- arch/ia64/include/asm/xen/minstate.h | 143 ---- arch/ia64/include/asm/xen/page-coherent.h | 38 - arch/ia64/include/asm/xen/page.h | 65 -- arch/ia64/include/asm/xen/patchlist.h | 38 - arch/ia64/include/asm/xen/privop.h | 135 ---- arch/ia64/include/asm/xen/xcom_hcall.h | 51 -- arch/ia64/include/asm/xen/xencomm.h | 42 -- arch/ia64/include/uapi/asm/break.h | 9 - arch/ia64/kernel/acpi.c | 3 - arch/ia64/kernel/asm-offsets.c | 32 - arch/ia64/kernel/head.S | 3 - arch/ia64/kernel/nr-irqs.c | 4 - arch/ia64/kernel/paravirt_inst.h | 3 - arch/ia64/kernel/paravirt_patchlist.h | 4 - arch/ia64/kernel/vmlinux.lds.S | 6 - arch/ia64/xen/Kconfig | 25 - arch/ia64/xen/Makefile | 37 - arch/ia64/xen/gate-data.S | 3 - arch/ia64/xen/grant-table.c | 94 --- arch/ia64/xen/hypercall.S | 88 --- arch/ia64/xen/hypervisor.c | 97 --- arch/ia64/xen/irq_xen.c | 443 ----------- arch/ia64/xen/irq_xen.h | 34 - arch/ia64/xen/machvec.c | 4 - arch/ia64/xen/suspend.c | 59 -- arch/ia64/xen/time.c | 257 ------- arch/ia64/xen/time.h | 24 - arch/ia64/xen/xcom_hcall.c | 441 ----------- arch/ia64/xen/xen_pv_ops.c | 1141 ----------------------------- arch/ia64/xen/xencomm.c | 106 --- arch/ia64/xen/xenivt.S | 52 -- arch/ia64/xen/xensetup.S | 80 -- include/xen/interface/callback.h | 2 +- include/xen/interface/io/protocols.h | 3 - 50 files changed, 2 insertions(+), 5118 deletions(-) delete mode 100644 arch/ia64/configs/xen_domu_defconfig delete mode 100644 arch/ia64/include/asm/machvec_xen.h delete mode 100644 arch/ia64/include/asm/sync_bitops.h delete mode 100644 arch/ia64/include/asm/xen/events.h delete mode 100644 arch/ia64/include/asm/xen/hypercall.h delete mode 100644 arch/ia64/include/asm/xen/hypervisor.h delete mode 100644 arch/ia64/include/asm/xen/inst.h delete mode 100644 arch/ia64/include/asm/xen/interface.h delete mode 100644 arch/ia64/include/asm/xen/irq.h delete mode 100644 arch/ia64/include/asm/xen/minstate.h delete mode 100644 arch/ia64/include/asm/xen/page-coherent.h delete mode 100644 arch/ia64/include/asm/xen/page.h delete mode 100644 arch/ia64/include/asm/xen/patchlist.h delete mode 100644 arch/ia64/include/asm/xen/privop.h delete mode 100644 arch/ia64/include/asm/xen/xcom_hcall.h delete mode 100644 arch/ia64/include/asm/xen/xencomm.h delete mode 100644 arch/ia64/xen/Kconfig delete mode 100644 arch/ia64/xen/Makefile delete mode 100644 arch/ia64/xen/gate-data.S delete mode 100644 arch/ia64/xen/grant-table.c delete mode 100644 arch/ia64/xen/hypercall.S delete mode 100644 arch/ia64/xen/hypervisor.c delete mode 100644 arch/ia64/xen/irq_xen.c delete mode 100644 arch/ia64/xen/irq_xen.h delete mode 100644 arch/ia64/xen/machvec.c delete mode 100644 arch/ia64/xen/suspend.c delete mode 100644 arch/ia64/xen/time.c delete mode 100644 arch/ia64/xen/time.h delete mode 100644 arch/ia64/xen/xcom_hcall.c delete mode 100644 arch/ia64/xen/xen_pv_ops.c delete mode 100644 arch/ia64/xen/xencomm.c delete mode 100644 arch/ia64/xen/xenivt.S delete mode 100644 arch/ia64/xen/xensetup.S (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 4e4119b0e691..a8c3a11dc5ab 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -147,9 +147,6 @@ config PARAVIRT over full virtualization. However, when run without a hypervisor the kernel is theoretically slower and slightly larger. - -source "arch/ia64/xen/Kconfig" - endif choice @@ -175,7 +172,6 @@ config IA64_GENERIC SGI-SN2 For SGI Altix systems SGI-UV For SGI UV systems Ski-simulator For the HP simulator - Xen-domU For xen domU system If you don't know what to do, choose "generic". @@ -231,14 +227,6 @@ config IA64_HP_SIM bool "Ski-simulator" select SWIOTLB -config IA64_XEN_GUEST - bool "Xen guest" - select SWIOTLB - depends on XEN - help - Build a kernel that runs on Xen guest domain. At this moment only - 16KB page size in supported. - endchoice choice diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile index be7bfa12b705..f37238f45bcd 100644 --- a/arch/ia64/Makefile +++ b/arch/ia64/Makefile @@ -51,11 +51,9 @@ core-$(CONFIG_IA64_DIG_VTD) += arch/ia64/dig/ core-$(CONFIG_IA64_GENERIC) += arch/ia64/dig/ core-$(CONFIG_IA64_HP_ZX1) += arch/ia64/dig/ core-$(CONFIG_IA64_HP_ZX1_SWIOTLB) += arch/ia64/dig/ -core-$(CONFIG_IA64_XEN_GUEST) += arch/ia64/dig/ core-$(CONFIG_IA64_SGI_SN2) += arch/ia64/sn/ core-$(CONFIG_IA64_SGI_UV) += arch/ia64/uv/ core-$(CONFIG_KVM) += arch/ia64/kvm/ -core-$(CONFIG_XEN) += arch/ia64/xen/ drivers-$(CONFIG_PCI) += arch/ia64/pci/ drivers-$(CONFIG_IA64_HP_SIM) += arch/ia64/hp/sim/ diff --git a/arch/ia64/configs/xen_domu_defconfig b/arch/ia64/configs/xen_domu_defconfig deleted file mode 100644 index b025acfde5c1..000000000000 --- a/arch/ia64/configs/xen_domu_defconfig +++ /dev/null @@ -1,199 +0,0 @@ -CONFIG_EXPERIMENTAL=y -CONFIG_SYSVIPC=y -CONFIG_POSIX_MQUEUE=y -CONFIG_IKCONFIG=y -CONFIG_IKCONFIG_PROC=y -CONFIG_LOG_BUF_SHIFT=20 -CONFIG_SYSFS_DEPRECATED_V2=y -CONFIG_BLK_DEV_INITRD=y -CONFIG_KALLSYMS_ALL=y -CONFIG_MODULES=y -CONFIG_MODULE_UNLOAD=y -CONFIG_MODVERSIONS=y -CONFIG_MODULE_SRCVERSION_ALL=y -# CONFIG_BLK_DEV_BSG is not set -CONFIG_PARAVIRT_GUEST=y -CONFIG_IA64_XEN_GUEST=y -CONFIG_MCKINLEY=y -CONFIG_IA64_CYCLONE=y -CONFIG_SMP=y -CONFIG_NR_CPUS=16 -CONFIG_HOTPLUG_CPU=y -CONFIG_PERMIT_BSP_REMOVE=y -CONFIG_FORCE_CPEI_RETARGET=y -CONFIG_IA64_MCA_RECOVERY=y -CONFIG_PERFMON=y -CONFIG_IA64_PALINFO=y -CONFIG_KEXEC=y -CONFIG_EFI_VARS=y -CONFIG_BINFMT_MISC=m -CONFIG_ACPI_PROCFS=y -CONFIG_ACPI_BUTTON=m -CONFIG_ACPI_FAN=m -CONFIG_ACPI_PROCESSOR=m -CONFIG_ACPI_CONTAINER=m -CONFIG_HOTPLUG_PCI=y -CONFIG_HOTPLUG_PCI_ACPI=m -CONFIG_PACKET=y -CONFIG_UNIX=y -CONFIG_INET=y -CONFIG_IP_MULTICAST=y -CONFIG_ARPD=y -CONFIG_SYN_COOKIES=y -# CONFIG_INET_LRO is not set -# CONFIG_IPV6 is not set -CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug" -CONFIG_BLK_DEV_LOOP=m -CONFIG_BLK_DEV_CRYPTOLOOP=m -CONFIG_BLK_DEV_NBD=m -CONFIG_BLK_DEV_RAM=y -CONFIG_IDE=y -CONFIG_BLK_DEV_IDECD=y -CONFIG_BLK_DEV_GENERIC=y -CONFIG_BLK_DEV_CMD64X=y -CONFIG_BLK_DEV_PIIX=y -CONFIG_SCSI=y -CONFIG_BLK_DEV_SD=y -CONFIG_CHR_DEV_ST=m -CONFIG_BLK_DEV_SR=m -CONFIG_CHR_DEV_SG=m -CONFIG_SCSI_SYM53C8XX_2=y -CONFIG_SCSI_QLOGIC_1280=y -CONFIG_MD=y -CONFIG_BLK_DEV_MD=m -CONFIG_MD_LINEAR=m -CONFIG_MD_RAID0=m -CONFIG_MD_RAID1=m -CONFIG_MD_MULTIPATH=m -CONFIG_BLK_DEV_DM=m -CONFIG_DM_CRYPT=m -CONFIG_DM_SNAPSHOT=m -CONFIG_DM_MIRROR=m -CONFIG_DM_ZERO=m -CONFIG_FUSION=y -CONFIG_FUSION_SPI=y -CONFIG_FUSION_FC=y -CONFIG_FUSION_CTL=y -CONFIG_NETDEVICES=y -CONFIG_DUMMY=m -CONFIG_NET_ETHERNET=y -CONFIG_NET_TULIP=y -CONFIG_TULIP=m -CONFIG_NET_PCI=y -CONFIG_NET_VENDOR_INTEL=y -CONFIG_E100=m -CONFIG_E1000=y -CONFIG_TIGON3=y -CONFIG_NETCONSOLE=y -# CONFIG_SERIO_SERPORT is not set -CONFIG_GAMEPORT=m -CONFIG_SERIAL_NONSTANDARD=y -CONFIG_SERIAL_8250=y -CONFIG_SERIAL_8250_CONSOLE=y -CONFIG_SERIAL_8250_NR_UARTS=6 -CONFIG_SERIAL_8250_EXTENDED=y -CONFIG_SERIAL_8250_SHARE_IRQ=y -# CONFIG_HW_RANDOM is not set -CONFIG_EFI_RTC=y -CONFIG_RAW_DRIVER=m -CONFIG_HPET=y -CONFIG_AGP=m -CONFIG_DRM=m -CONFIG_DRM_TDFX=m -CONFIG_DRM_R128=m -CONFIG_DRM_RADEON=m -CONFIG_DRM_MGA=m -CONFIG_DRM_SIS=m -CONFIG_HID_GYRATION=y -CONFIG_HID_NTRIG=y -CONFIG_HID_PANTHERLORD=y -CONFIG_HID_PETALYNX=y -CONFIG_HID_SAMSUNG=y -CONFIG_HID_SONY=y -CONFIG_HID_SUNPLUS=y -CONFIG_HID_TOPSEED=y -CONFIG_USB=y -CONFIG_USB_DEVICEFS=y -CONFIG_USB_EHCI_HCD=m -CONFIG_USB_OHCI_HCD=m -CONFIG_USB_UHCI_HCD=y -CONFIG_USB_STORAGE=m -CONFIG_EXT2_FS=y -CONFIG_EXT2_FS_XATTR=y -CONFIG_EXT2_FS_POSIX_ACL=y -CONFIG_EXT2_FS_SECURITY=y -CONFIG_EXT3_FS=y -CONFIG_EXT3_FS_POSIX_ACL=y -CONFIG_EXT3_FS_SECURITY=y -CONFIG_REISERFS_FS=y -CONFIG_REISERFS_FS_XATTR=y -CONFIG_REISERFS_FS_POSIX_ACL=y -CONFIG_REISERFS_FS_SECURITY=y -CONFIG_XFS_FS=y -CONFIG_AUTOFS_FS=y -CONFIG_AUTOFS4_FS=y -CONFIG_ISO9660_FS=m -CONFIG_JOLIET=y -CONFIG_UDF_FS=m -CONFIG_VFAT_FS=y -CONFIG_NTFS_FS=m -CONFIG_PROC_KCORE=y -CONFIG_TMPFS=y -CONFIG_HUGETLBFS=y -CONFIG_NFS_FS=m -CONFIG_NFS_V3=y -CONFIG_NFS_V4=y -CONFIG_NFSD=m -CONFIG_NFSD_V4=y -CONFIG_SMB_FS=m -CONFIG_SMB_NLS_DEFAULT=y -CONFIG_CIFS=m -CONFIG_PARTITION_ADVANCED=y -CONFIG_SGI_PARTITION=y -CONFIG_EFI_PARTITION=y -CONFIG_NLS_CODEPAGE_437=y -CONFIG_NLS_CODEPAGE_737=m -CONFIG_NLS_CODEPAGE_775=m -CONFIG_NLS_CODEPAGE_850=m -CONFIG_NLS_CODEPAGE_852=m -CONFIG_NLS_CODEPAGE_855=m -CONFIG_NLS_CODEPAGE_857=m -CONFIG_NLS_CODEPAGE_860=m -CONFIG_NLS_CODEPAGE_861=m -CONFIG_NLS_CODEPAGE_862=m -CONFIG_NLS_CODEPAGE_863=m -CONFIG_NLS_CODEPAGE_864=m -CONFIG_NLS_CODEPAGE_865=m -CONFIG_NLS_CODEPAGE_866=m -CONFIG_NLS_CODEPAGE_869=m -CONFIG_NLS_CODEPAGE_936=m -CONFIG_NLS_CODEPAGE_950=m -CONFIG_NLS_CODEPAGE_932=m -CONFIG_NLS_CODEPAGE_949=m -CONFIG_NLS_CODEPAGE_874=m -CONFIG_NLS_ISO8859_8=m -CONFIG_NLS_CODEPAGE_1250=m -CONFIG_NLS_CODEPAGE_1251=m -CONFIG_NLS_ISO8859_1=y -CONFIG_NLS_ISO8859_2=m -CONFIG_NLS_ISO8859_3=m -CONFIG_NLS_ISO8859_4=m -CONFIG_NLS_ISO8859_5=m -CONFIG_NLS_ISO8859_6=m -CONFIG_NLS_ISO8859_7=m -CONFIG_NLS_ISO8859_9=m -CONFIG_NLS_ISO8859_13=m -CONFIG_NLS_ISO8859_14=m -CONFIG_NLS_ISO8859_15=m -CONFIG_NLS_KOI8_R=m -CONFIG_NLS_KOI8_U=m -CONFIG_NLS_UTF8=m -CONFIG_MAGIC_SYSRQ=y -CONFIG_DEBUG_KERNEL=y -CONFIG_DEBUG_MUTEXES=y -# CONFIG_RCU_CPU_STALL_DETECTOR is not set -CONFIG_IA64_GRANULE_16MB=y -CONFIG_CRYPTO_ECB=m -CONFIG_CRYPTO_PCBC=m -CONFIG_CRYPTO_MD5=y -# CONFIG_CRYPTO_ANSI_CPRNG is not set diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h index faa1bf0da815..d651102a4d45 100644 --- a/arch/ia64/include/asm/acpi.h +++ b/arch/ia64/include/asm/acpi.h @@ -111,8 +111,6 @@ static inline const char *acpi_get_sysname (void) return "uv"; # elif defined (CONFIG_IA64_DIG) return "dig"; -# elif defined (CONFIG_IA64_XEN_GUEST) - return "xen"; # elif defined(CONFIG_IA64_DIG_VTD) return "dig_vtd"; # else diff --git a/arch/ia64/include/asm/machvec.h b/arch/ia64/include/asm/machvec.h index 2d1ad4b11a85..9c39bdfc2da8 100644 --- a/arch/ia64/include/asm/machvec.h +++ b/arch/ia64/include/asm/machvec.h @@ -113,8 +113,6 @@ extern void machvec_tlb_migrate_finish (struct mm_struct *); # include # elif defined (CONFIG_IA64_SGI_UV) # include -# elif defined (CONFIG_IA64_XEN_GUEST) -# include # elif defined (CONFIG_IA64_GENERIC) # ifdef MACHVEC_PLATFORM_HEADER diff --git a/arch/ia64/include/asm/machvec_xen.h b/arch/ia64/include/asm/machvec_xen.h deleted file mode 100644 index 8b8bd0eb3923..000000000000 --- a/arch/ia64/include/asm/machvec_xen.h +++ /dev/null @@ -1,22 +0,0 @@ -#ifndef _ASM_IA64_MACHVEC_XEN_h -#define _ASM_IA64_MACHVEC_XEN_h - -extern ia64_mv_setup_t dig_setup; -extern ia64_mv_cpu_init_t xen_cpu_init; -extern ia64_mv_irq_init_t xen_irq_init; -extern ia64_mv_send_ipi_t xen_platform_send_ipi; - -/* - * This stuff has dual use! - * - * For a generic kernel, the macros are used to initialize the - * platform's machvec structure. When compiling a non-generic kernel, - * the macros are used directly. - */ -#define ia64_platform_name "xen" -#define platform_setup dig_setup -#define platform_cpu_init xen_cpu_init -#define platform_irq_init xen_irq_init -#define platform_send_ipi xen_platform_send_ipi - -#endif /* _ASM_IA64_MACHVEC_XEN_h */ diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h index 61c7b1750b16..092f1c91b36c 100644 --- a/arch/ia64/include/asm/meminit.h +++ b/arch/ia64/include/asm/meminit.h @@ -18,7 +18,6 @@ * - crash dumping code reserved region * - Kernel memory map built from EFI memory map * - ELF core header - * - xen start info if CONFIG_XEN * * More could be added if necessary */ diff --git a/arch/ia64/include/asm/paravirt.h b/arch/ia64/include/asm/paravirt.h index b149b88ea795..b53518a98026 100644 --- a/arch/ia64/include/asm/paravirt.h +++ b/arch/ia64/include/asm/paravirt.h @@ -75,7 +75,6 @@ void *paravirt_get_gate_section(void); #ifdef CONFIG_PARAVIRT_GUEST #define PARAVIRT_HYPERVISOR_TYPE_DEFAULT 0 -#define PARAVIRT_HYPERVISOR_TYPE_XEN 1 #ifndef __ASSEMBLY__ diff --git a/arch/ia64/include/asm/pvclock-abi.h b/arch/ia64/include/asm/pvclock-abi.h index 44ef9ef8f5b3..42b233bedeb5 100644 --- a/arch/ia64/include/asm/pvclock-abi.h +++ b/arch/ia64/include/asm/pvclock-abi.h @@ -11,7 +11,7 @@ /* * These structs MUST NOT be changed. * They are the ABI between hypervisor and guest OS. - * Both Xen and KVM are using this. + * KVM is using this. * * pvclock_vcpu_time_info holds the system time and the tsc timestamp * of the last update. So the guest can use the tsc delta to get a diff --git a/arch/ia64/include/asm/sync_bitops.h b/arch/ia64/include/asm/sync_bitops.h deleted file mode 100644 index 593c12eeb270..000000000000 --- a/arch/ia64/include/asm/sync_bitops.h +++ /dev/null @@ -1,51 +0,0 @@ -#ifndef _ASM_IA64_SYNC_BITOPS_H -#define _ASM_IA64_SYNC_BITOPS_H - -/* - * Copyright (C) 2008 Isaku Yamahata - * - * Based on synch_bitops.h which Dan Magenhaimer wrote. - * - * bit operations which provide guaranteed strong synchronisation - * when communicating with Xen or other guest OSes running on other CPUs. - */ - -static inline void sync_set_bit(int nr, volatile void *addr) -{ - set_bit(nr, addr); -} - -static inline void sync_clear_bit(int nr, volatile void *addr) -{ - clear_bit(nr, addr); -} - -static inline void sync_change_bit(int nr, volatile void *addr) -{ - change_bit(nr, addr); -} - -static inline int sync_test_and_set_bit(int nr, volatile void *addr) -{ - return test_and_set_bit(nr, addr); -} - -static inline int sync_test_and_clear_bit(int nr, volatile void *addr) -{ - return test_and_clear_bit(nr, addr); -} - -static inline int sync_test_and_change_bit(int nr, volatile void *addr) -{ - return test_and_change_bit(nr, addr); -} - -static inline int sync_test_bit(int nr, const volatile void *addr) -{ - return test_bit(nr, addr); -} - -#define sync_cmpxchg(ptr, old, new) \ - ((__typeof__(*(ptr)))cmpxchg_acq((ptr), (old), (new))) - -#endif /* _ASM_IA64_SYNC_BITOPS_H */ diff --git a/arch/ia64/include/asm/xen/events.h b/arch/ia64/include/asm/xen/events.h deleted file mode 100644 index baa74c82aa71..000000000000 --- a/arch/ia64/include/asm/xen/events.h +++ /dev/null @@ -1,41 +0,0 @@ -/****************************************************************************** - * arch/ia64/include/asm/xen/events.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ -#ifndef _ASM_IA64_XEN_EVENTS_H -#define _ASM_IA64_XEN_EVENTS_H - -enum ipi_vector { - XEN_RESCHEDULE_VECTOR, - XEN_IPI_VECTOR, - XEN_CMCP_VECTOR, - XEN_CPEP_VECTOR, - - XEN_NR_IPIS, -}; - -static inline int xen_irqs_disabled(struct pt_regs *regs) -{ - return !(ia64_psr(regs)->i); -} - -#define irq_ctx_init(cpu) do { } while (0) - -#endif /* _ASM_IA64_XEN_EVENTS_H */ diff --git a/arch/ia64/include/asm/xen/hypercall.h b/arch/ia64/include/asm/xen/hypercall.h deleted file mode 100644 index ed28bcd5bb85..000000000000 --- a/arch/ia64/include/asm/xen/hypercall.h +++ /dev/null @@ -1,265 +0,0 @@ -/****************************************************************************** - * hypercall.h - * - * Linux-specific hypervisor handling. - * - * Copyright (c) 2002-2004, K A Fraser - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation; or, when distributed - * separately from the Linux kernel or incorporated into other - * software packages, subject to the following license: - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this source file (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, modify, - * merge, publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -#ifndef _ASM_IA64_XEN_HYPERCALL_H -#define _ASM_IA64_XEN_HYPERCALL_H - -#include -#include -#include -#include -struct xencomm_handle; -extern unsigned long __hypercall(unsigned long a1, unsigned long a2, - unsigned long a3, unsigned long a4, - unsigned long a5, unsigned long cmd); - -/* - * Assembler stubs for hyper-calls. - */ - -#define _hypercall0(type, name) \ -({ \ - long __res; \ - __res = __hypercall(0, 0, 0, 0, 0, __HYPERVISOR_##name);\ - (type)__res; \ -}) - -#define _hypercall1(type, name, a1) \ -({ \ - long __res; \ - __res = __hypercall((unsigned long)a1, \ - 0, 0, 0, 0, __HYPERVISOR_##name); \ - (type)__res; \ -}) - -#define _hypercall2(type, name, a1, a2) \ -({ \ - long __res; \ - __res = __hypercall((unsigned long)a1, \ - (unsigned long)a2, \ - 0, 0, 0, __HYPERVISOR_##name); \ - (type)__res; \ -}) - -#define _hypercall3(type, name, a1, a2, a3) \ -({ \ - long __res; \ - __res = __hypercall((unsigned long)a1, \ - (unsigned long)a2, \ - (unsigned long)a3, \ - 0, 0, __HYPERVISOR_##name); \ - (type)__res; \ -}) - -#define _hypercall4(type, name, a1, a2, a3, a4) \ -({ \ - long __res; \ - __res = __hypercall((unsigned long)a1, \ - (unsigned long)a2, \ - (unsigned long)a3, \ - (unsigned long)a4, \ - 0, __HYPERVISOR_##name); \ - (type)__res; \ -}) - -#define _hypercall5(type, name, a1, a2, a3, a4, a5) \ -({ \ - long __res; \ - __res = __hypercall((unsigned long)a1, \ - (unsigned long)a2, \ - (unsigned long)a3, \ - (unsigned long)a4, \ - (unsigned long)a5, \ - __HYPERVISOR_##name); \ - (type)__res; \ -}) - - -static inline int -xencomm_arch_hypercall_sched_op(int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, sched_op, cmd, arg); -} - -static inline long -HYPERVISOR_set_timer_op(u64 timeout) -{ - unsigned long timeout_hi = (unsigned long)(timeout >> 32); - unsigned long timeout_lo = (unsigned long)timeout; - return _hypercall2(long, set_timer_op, timeout_lo, timeout_hi); -} - -static inline int -xencomm_arch_hypercall_multicall(struct xencomm_handle *call_list, - int nr_calls) -{ - return _hypercall2(int, multicall, call_list, nr_calls); -} - -static inline int -xencomm_arch_hypercall_memory_op(unsigned int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, memory_op, cmd, arg); -} - -static inline int -xencomm_arch_hypercall_event_channel_op(int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, event_channel_op, cmd, arg); -} - -static inline int -xencomm_arch_hypercall_xen_version(int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, xen_version, cmd, arg); -} - -static inline int -xencomm_arch_hypercall_console_io(int cmd, int count, - struct xencomm_handle *str) -{ - return _hypercall3(int, console_io, cmd, count, str); -} - -static inline int -xencomm_arch_hypercall_physdev_op(int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, physdev_op, cmd, arg); -} - -static inline int -xencomm_arch_hypercall_grant_table_op(unsigned int cmd, - struct xencomm_handle *uop, - unsigned int count) -{ - return _hypercall3(int, grant_table_op, cmd, uop, count); -} - -int HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count); - -extern int xencomm_arch_hypercall_suspend(struct xencomm_handle *arg); - -static inline int -xencomm_arch_hypercall_callback_op(int cmd, struct xencomm_handle *arg) -{ - return _hypercall2(int, callback_op, cmd, arg); -} - -static inline long -xencomm_arch_hypercall_vcpu_op(int cmd, int cpu, void *arg) -{ - return _hypercall3(long, vcpu_op, cmd, cpu, arg); -} - -static inline int -HYPERVISOR_physdev_op(int cmd, void *arg) -{ - switch (cmd) { - case PHYSDEVOP_eoi: - return _hypercall1(int, ia64_fast_eoi, - ((struct physdev_eoi *)arg)->irq); - default: - return xencomm_hypercall_physdev_op(cmd, arg); - } -} - -static inline long -xencomm_arch_hypercall_opt_feature(struct xencomm_handle *arg) -{ - return _hypercall1(long, opt_feature, arg); -} - -/* for balloon driver */ -#define HYPERVISOR_update_va_mapping(va, new_val, flags) (0) - -/* Use xencomm to do hypercalls. */ -#define HYPERVISOR_sched_op xencomm_hypercall_sched_op -#define HYPERVISOR_event_channel_op xencomm_hypercall_event_channel_op -#define HYPERVISOR_callback_op xencomm_hypercall_callback_op -#define HYPERVISOR_multicall xencomm_hypercall_multicall -#define HYPERVISOR_xen_version xencomm_hypercall_xen_version -#define HYPERVISOR_console_io xencomm_hypercall_console_io -#define HYPERVISOR_memory_op xencomm_hypercall_memory_op -#define HYPERVISOR_suspend xencomm_hypercall_suspend -#define HYPERVISOR_vcpu_op xencomm_hypercall_vcpu_op -#define HYPERVISOR_opt_feature xencomm_hypercall_opt_feature - -/* to compile gnttab_copy_grant_page() in drivers/xen/core/gnttab.c */ -#define HYPERVISOR_mmu_update(req, count, success_count, domid) ({ BUG(); 0; }) - -static inline int -HYPERVISOR_shutdown( - unsigned int reason) -{ - struct sched_shutdown sched_shutdown = { - .reason = reason - }; - - int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown); - - return rc; -} - -/* for netfront.c, netback.c */ -#define MULTI_UVMFLAGS_INDEX 0 /* XXX any value */ - -static inline void -MULTI_update_va_mapping( - struct multicall_entry *mcl, unsigned long va, - pte_t new_val, unsigned long flags) -{ - mcl->op = __HYPERVISOR_update_va_mapping; - mcl->result = 0; -} - -static inline void -MULTI_grant_table_op(struct multicall_entry *mcl, unsigned int cmd, - void *uop, unsigned int count) -{ - mcl->op = __HYPERVISOR_grant_table_op; - mcl->args[0] = cmd; - mcl->args[1] = (unsigned long)uop; - mcl->args[2] = count; -} - -static inline void -MULTI_mmu_update(struct multicall_entry *mcl, struct mmu_update *req, - int count, int *success_count, domid_t domid) -{ - mcl->op = __HYPERVISOR_mmu_update; - mcl->args[0] = (unsigned long)req; - mcl->args[1] = count; - mcl->args[2] = (unsigned long)success_count; - mcl->args[3] = domid; -} - -#endif /* _ASM_IA64_XEN_HYPERCALL_H */ diff --git a/arch/ia64/include/asm/xen/hypervisor.h b/arch/ia64/include/asm/xen/hypervisor.h deleted file mode 100644 index 67455c2ed2b1..000000000000 --- a/arch/ia64/include/asm/xen/hypervisor.h +++ /dev/null @@ -1,61 +0,0 @@ -/****************************************************************************** - * hypervisor.h - * - * Linux-specific hypervisor handling. - * - * Copyright (c) 2002-2004, K A Fraser - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation; or, when distributed - * separately from the Linux kernel or incorporated into other - * software packages, subject to the following license: - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this source file (the "Software"), to deal in the Software without - * restriction, including without limitation the rights to use, copy, modify, - * merge, publish, distribute, sublicense, and/or sell copies of the Software, - * and to permit persons to whom the Software is furnished to do so, subject to - * the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS - * IN THE SOFTWARE. - */ - -#ifndef _ASM_IA64_XEN_HYPERVISOR_H -#define _ASM_IA64_XEN_HYPERVISOR_H - -#include -#include -#include /* to compile feature.c */ -#include /* to comiple xen-netfront.c */ -#include -#include - -#ifdef CONFIG_XEN -extern struct shared_info *HYPERVISOR_shared_info; -extern struct start_info *xen_start_info; - -void __init xen_setup_vcpu_info_placement(void); -void force_evtchn_callback(void); - -/* for drivers/xen/balloon/balloon.c */ -#ifdef CONFIG_XEN_SCRUB_PAGES -#define scrub_pages(_p, _n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT) -#else -#define scrub_pages(_p, _n) ((void)0) -#endif - -/* For setup_arch() in arch/ia64/kernel/setup.c */ -void xen_ia64_enable_opt_feature(void); -#endif - -#endif /* _ASM_IA64_XEN_HYPERVISOR_H */ diff --git a/arch/ia64/include/asm/xen/inst.h b/arch/ia64/include/asm/xen/inst.h deleted file mode 100644 index c53a47611208..000000000000 --- a/arch/ia64/include/asm/xen/inst.h +++ /dev/null @@ -1,486 +0,0 @@ -/****************************************************************************** - * arch/ia64/include/asm/xen/inst.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include - -#define ia64_ivt xen_ivt -#define DO_SAVE_MIN XEN_DO_SAVE_MIN - -#define __paravirt_switch_to xen_switch_to -#define __paravirt_leave_syscall xen_leave_syscall -#define __paravirt_work_processed_syscall xen_work_processed_syscall -#define __paravirt_leave_kernel xen_leave_kernel -#define __paravirt_pending_syscall_end xen_work_pending_syscall_end -#define __paravirt_work_processed_syscall_target \ - xen_work_processed_syscall - -#define paravirt_fsyscall_table xen_fsyscall_table -#define paravirt_fsys_bubble_down xen_fsys_bubble_down - -#define MOV_FROM_IFA(reg) \ - movl reg = XSI_IFA; \ - ;; \ - ld8 reg = [reg] - -#define MOV_FROM_ITIR(reg) \ - movl reg = XSI_ITIR; \ - ;; \ - ld8 reg = [reg] - -#define MOV_FROM_ISR(reg) \ - movl reg = XSI_ISR; \ - ;; \ - ld8 reg = [reg] - -#define MOV_FROM_IHA(reg) \ - movl reg = XSI_IHA; \ - ;; \ - ld8 reg = [reg] - -#define MOV_FROM_IPSR(pred, reg) \ -(pred) movl reg = XSI_IPSR; \ - ;; \ -(pred) ld8 reg = [reg] - -#define MOV_FROM_IIM(reg) \ - movl reg = XSI_IIM; \ - ;; \ - ld8 reg = [reg] - -#define MOV_FROM_IIP(reg) \ - movl reg = XSI_IIP; \ - ;; \ - ld8 reg = [reg] - -.macro __MOV_FROM_IVR reg, clob - .ifc "\reg", "r8" - XEN_HYPER_GET_IVR - .exitm - .endif - .ifc "\clob", "r8" - XEN_HYPER_GET_IVR - ;; - mov \reg = r8 - .exitm - .endif - - mov \clob = r8 - ;; - XEN_HYPER_GET_IVR - ;; - mov \reg = r8 - ;; - mov r8 = \clob -.endm -#define MOV_FROM_IVR(reg, clob) __MOV_FROM_IVR reg, clob - -.macro __MOV_FROM_PSR pred, reg, clob - .ifc "\reg", "r8" - (\pred) XEN_HYPER_GET_PSR; - .exitm - .endif - .ifc "\clob", "r8" - (\pred) XEN_HYPER_GET_PSR - ;; - (\pred) mov \reg = r8 - .exitm - .endif - - (\pred) mov \clob = r8 - (\pred) XEN_HYPER_GET_PSR - ;; - (\pred) mov \reg = r8 - (\pred) mov r8 = \clob -.endm -#define MOV_FROM_PSR(pred, reg, clob) __MOV_FROM_PSR pred, reg, clob - -/* assuming ar.itc is read with interrupt disabled. */ -#define MOV_FROM_ITC(pred, pred_clob, reg, clob) \ -(pred) movl clob = XSI_ITC_OFFSET; \ - ;; \ -(pred) ld8 clob = [clob]; \ -(pred) mov reg = ar.itc; \ - ;; \ -(pred) add reg = reg, clob; \ - ;; \ -(pred) movl clob = XSI_ITC_LAST; \ - ;; \ -(pred) ld8 clob = [clob]; \ - ;; \ -(pred) cmp.geu.unc pred_clob, p0 = clob, reg; \ - ;; \ -(pred_clob) add reg = 1, clob; \ - ;; \ -(pred) movl clob = XSI_ITC_LAST; \ - ;; \ -(pred) st8 [clob] = reg - - -#define MOV_TO_IFA(reg, clob) \ - movl clob = XSI_IFA; \ - ;; \ - st8 [clob] = reg \ - -#define MOV_TO_ITIR(pred, reg, clob) \ -(pred) movl clob = XSI_ITIR; \ - ;; \ -(pred) st8 [clob] = reg - -#define MOV_TO_IHA(pred, reg, clob) \ -(pred) movl clob = XSI_IHA; \ - ;; \ -(pred) st8 [clob] = reg - -#define MOV_TO_IPSR(pred, reg, clob) \ -(pred) movl clob = XSI_IPSR; \ - ;; \ -(pred) st8 [clob] = reg; \ - ;; - -#define MOV_TO_IFS(pred, reg, clob) \ -(pred) movl clob = XSI_IFS; \ - ;; \ -(pred) st8 [clob] = reg; \ - ;; - -#define MOV_TO_IIP(reg, clob) \ - movl clob = XSI_IIP; \ - ;; \ - st8 [clob] = reg - -.macro ____MOV_TO_KR kr, reg, clob0, clob1 - .ifc "\clob0", "r9" - .error "clob0 \clob0 must not be r9" - .endif - .ifc "\clob1", "r8" - .error "clob1 \clob1 must not be r8" - .endif - - .ifnc "\reg", "r9" - .ifnc "\clob1", "r9" - mov \clob1 = r9 - .endif - mov r9 = \reg - .endif - .ifnc "\clob0", "r8" - mov \clob0 = r8 - .endif - mov r8 = \kr - ;; - XEN_HYPER_SET_KR - - .ifnc "\reg", "r9" - .ifnc "\clob1", "r9" - mov r9 = \clob1 - .endif - .endif - .ifnc "\clob0", "r8" - mov r8 = \clob0 - .endif -.endm - -.macro __MOV_TO_KR kr, reg, clob0, clob1 - .ifc "\clob0", "r9" - ____MOV_TO_KR \kr, \reg, \clob1, \clob0 - .exitm - .endif - .ifc "\clob1", "r8" - ____MOV_TO_KR \kr, \reg, \clob1, \clob0 - .exitm - .endif - - ____MOV_TO_KR \kr, \reg, \clob0, \clob1 -.endm - -#define MOV_TO_KR(kr, reg, clob0, clob1) \ - __MOV_TO_KR IA64_KR_ ## kr, reg, clob0, clob1 - - -.macro __ITC_I pred, reg, clob - .ifc "\reg", "r8" - (\pred) XEN_HYPER_ITC_I - .exitm - .endif - .ifc "\clob", "r8" - (\pred) mov r8 = \reg - ;; - (\pred) XEN_HYPER_ITC_I - .exitm - .endif - - (\pred) mov \clob = r8 - (\pred) mov r8 = \reg - ;; - (\pred) XEN_HYPER_ITC_I - ;; - (\pred) mov r8 = \clob - ;; -.endm -#define ITC_I(pred, reg, clob) __ITC_I pred, reg, clob - -.macro __ITC_D pred, reg, clob - .ifc "\reg", "r8" - (\pred) XEN_HYPER_ITC_D - ;; - .exitm - .endif - .ifc "\clob", "r8" - (\pred) mov r8 = \reg - ;; - (\pred) XEN_HYPER_ITC_D - ;; - .exitm - .endif - - (\pred) mov \clob = r8 - (\pred) mov r8 = \reg - ;; - (\pred) XEN_HYPER_ITC_D - ;; - (\pred) mov r8 = \clob - ;; -.endm -#define ITC_D(pred, reg, clob) __ITC_D pred, reg, clob - -.macro __ITC_I_AND_D pred_i, pred_d, reg, clob - .ifc "\reg", "r8" - (\pred_i)XEN_HYPER_ITC_I - ;; - (\pred_d)XEN_HYPER_ITC_D - ;; - .exitm - .endif - .ifc "\clob", "r8" - mov r8 = \reg - ;; - (\pred_i)XEN_HYPER_ITC_I - ;; - (\pred_d)XEN_HYPER_ITC_D - ;; - .exitm - .endif - - mov \clob = r8 - mov r8 = \reg - ;; - (\pred_i)XEN_HYPER_ITC_I - ;; - (\pred_d)XEN_HYPER_ITC_D - ;; - mov r8 = \clob - ;; -.endm -#define ITC_I_AND_D(pred_i, pred_d, reg, clob) \ - __ITC_I_AND_D pred_i, pred_d, reg, clob - -.macro __THASH pred, reg0, reg1, clob - .ifc "\reg0", "r8" - (\pred) mov r8 = \reg1 - (\pred) XEN_HYPER_THASH - .exitm - .endc - .ifc "\reg1", "r8" - (\pred) XEN_HYPER_THASH - ;; - (\pred) mov \reg0 = r8 - ;; - .exitm - .endif - .ifc "\clob", "r8" - (\pred) mov r8 = \reg1 - (\pred) XEN_HYPER_THASH - ;; - (\pred) mov \reg0 = r8 - ;; - .exitm - .endif - - (\pred) mov \clob = r8 - (\pred) mov r8 = \reg1 - (\pred) XEN_HYPER_THASH - ;; - (\pred) mov \reg0 = r8 - (\pred) mov r8 = \clob - ;; -.endm -#define THASH(pred, reg0, reg1, clob) __THASH pred, reg0, reg1, clob - -#define SSM_PSR_IC_AND_DEFAULT_BITS_AND_SRLZ_I(clob0, clob1) \ - mov clob0 = 1; \ - movl clob1 = XSI_PSR_IC; \ - ;; \ - st4 [clob1] = clob0 \ - ;; - -#define SSM_PSR_IC_AND_SRLZ_D(clob0, clob1) \ - ;; \ - srlz.d; \ - mov clob1 = 1; \ - movl clob0 = XSI_PSR_IC; \ - ;; \ - st4 [clob0] = clob1 - -#define RSM_PSR_IC(clob) \ - movl clob = XSI_PSR_IC; \ - ;; \ - st4 [clob] = r0; \ - ;; - -/* pred will be clobbered */ -#define MASK_TO_PEND_OFS (-1) -#define SSM_PSR_I(pred, pred_clob, clob) \ -(pred) movl clob = XSI_PSR_I_ADDR \ - ;; \ -(pred) ld8 clob = [clob] \ - ;; \ - /* if (pred) vpsr.i = 1 */ \ - /* if (pred) (vcpu->vcpu_info->evtchn_upcall_mask)=0 */ \ -(pred) st1 [clob] = r0, MASK_TO_PEND_OFS \ - ;; \ - /* if (vcpu->vcpu_info->evtchn_upcall_pending) */ \ -(pred) ld1 clob = [clob] \ - ;; \ -(pred) cmp.ne.unc pred_clob, p0 = clob, r0 \ - ;; \ -(pred_clob)XEN_HYPER_SSM_I /* do areal ssm psr.i */ - -#define RSM_PSR_I(pred, clob0, clob1) \ - movl clob0 = XSI_PSR_I_ADDR; \ - mov clob1 = 1; \ - ;; \ - ld8 clob0 = [clob0]; \ - ;; \ -(pred) st1 [clob0] = clob1 - -#define RSM_PSR_I_IC(clob0, clob1, clob2) \ - movl clob0 = XSI_PSR_I_ADDR; \ - movl clob1 = XSI_PSR_IC; \ - ;; \ - ld8 clob0 = [clob0]; \ - mov clob2 = 1; \ - ;; \ - /* note: clears both vpsr.i and vpsr.ic! */ \ - st1 [clob0] = clob2; \ - st4 [clob1] = r0; \ - ;; - -#define RSM_PSR_DT \ - XEN_HYPER_RSM_PSR_DT - -#define RSM_PSR_BE_I(clob0, clob1) \ - RSM_PSR_I(p0, clob0, clob1); \ - rum psr.be - -#define SSM_PSR_DT_AND_SRLZ_I \ - XEN_HYPER_SSM_PSR_DT - -#define BSW_0(clob0, clob1, clob2) \ - ;; \ - /* r16-r31 all now hold bank1 values */ \ - mov clob2 = ar.unat; \ - movl clob0 = XSI_BANK1_R16; \ - movl clob1 = XSI_BANK1_R16 + 8; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r16, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r17, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r18, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r19, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r20, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r21, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r22, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r23, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r24, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r25, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r26, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r27, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r28, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r29, 16; \ - ;; \ -.mem.offset 0, 0; st8.spill [clob0] = r30, 16; \ -.mem.offset 8, 0; st8.spill [clob1] = r31, 16; \ - ;; \ - mov clob1 = ar.unat; \ - movl clob0 = XSI_B1NAT; \ - ;; \ - st8 [clob0] = clob1; \ - mov ar.unat = clob2; \ - movl clob0 = XSI_BANKNUM; \ - ;; \ - st4 [clob0] = r0 - - - /* FIXME: THIS CODE IS NOT NaT SAFE! */ -#define XEN_BSW_1(clob) \ - mov clob = ar.unat; \ - movl r30 = XSI_B1NAT; \ - ;; \ - ld8 r30 = [r30]; \ - mov r31 = 1; \ - ;; \ - mov ar.unat = r30; \ - movl r30 = XSI_BANKNUM; \ - ;; \ - st4 [r30] = r31; \ - movl r30 = XSI_BANK1_R16; \ - movl r31 = XSI_BANK1_R16+8; \ - ;; \ - ld8.fill r16 = [r30], 16; \ - ld8.fill r17 = [r31], 16; \ - ;; \ - ld8.fill r18 = [r30], 16; \ - ld8.fill r19 = [r31], 16; \ - ;; \ - ld8.fill r20 = [r30], 16; \ - ld8.fill r21 = [r31], 16; \ - ;; \ - ld8.fill r22 = [r30], 16; \ - ld8.fill r23 = [r31], 16; \ - ;; \ - ld8.fill r24 = [r30], 16; \ - ld8.fill r25 = [r31], 16; \ - ;; \ - ld8.fill r26 = [r30], 16; \ - ld8.fill r27 = [r31], 16; \ - ;; \ - ld8.fill r28 = [r30], 16; \ - ld8.fill r29 = [r31], 16; \ - ;; \ - ld8.fill r30 = [r30]; \ - ld8.fill r31 = [r31]; \ - ;; \ - mov ar.unat = clob - -#define BSW_1(clob0, clob1) XEN_BSW_1(clob1) - - -#define COVER \ - XEN_HYPER_COVER - -#define RFI \ - XEN_HYPER_RFI; \ - dv_serialize_data diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h deleted file mode 100644 index e88c5de27410..000000000000 --- a/arch/ia64/include/asm/xen/interface.h +++ /dev/null @@ -1,363 +0,0 @@ -/****************************************************************************** - * arch-ia64/hypervisor-if.h - * - * Guest OS interface to IA64 Xen. - * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to - * deal in the Software without restriction, including without limitation the - * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or - * sell copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING - * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - * - * Copyright by those who contributed. (in alphabetical order) - * - * Anthony Xu - * Eddie Dong - * Fred Yang - * Kevin Tian - * Alex Williamson - * Chris Wright - * Christian Limpach - * Dietmar Hahn - * Hollis Blanchard - * Isaku Yamahata - * Jan Beulich - * John Levon - * Kazuhiro Suzuki - * Keir Fraser - * Kouya Shimura - * Masaki Kanno - * Matt Chapman - * Matthew Chapman - * Samuel Thibault - * Tomonari Horikoshi - * Tristan Gingold - * Tsunehisa Doi - * Yutaka Ezaki - * Zhang Xin - * Zhang xiantao - * dan.magenheimer@hp.com - * ian.pratt@cl.cam.ac.uk - * michael.fetterman@cl.cam.ac.uk - */ - -#ifndef _ASM_IA64_XEN_INTERFACE_H -#define _ASM_IA64_XEN_INTERFACE_H - -#define __DEFINE_GUEST_HANDLE(name, type) \ - typedef struct { type *p; } __guest_handle_ ## name - -#define DEFINE_GUEST_HANDLE_STRUCT(name) \ - __DEFINE_GUEST_HANDLE(name, struct name) -#define DEFINE_GUEST_HANDLE(name) __DEFINE_GUEST_HANDLE(name, name) -#define GUEST_HANDLE(name) __guest_handle_ ## name -#define GUEST_HANDLE_64(name) GUEST_HANDLE(name) -#define set_xen_guest_handle(hnd, val) do { (hnd).p = val; } while (0) - -#ifndef __ASSEMBLY__ -/* Explicitly size integers that represent pfns in the public interface - * with Xen so that we could have one ABI that works for 32 and 64 bit - * guests. */ -typedef unsigned long xen_pfn_t; -typedef unsigned long xen_ulong_t; -/* Guest handles for primitive C types. */ -__DEFINE_GUEST_HANDLE(uchar, unsigned char); -__DEFINE_GUEST_HANDLE(uint, unsigned int); -__DEFINE_GUEST_HANDLE(ulong, unsigned long); - -DEFINE_GUEST_HANDLE(char); -DEFINE_GUEST_HANDLE(int); -DEFINE_GUEST_HANDLE(long); -DEFINE_GUEST_HANDLE(void); -DEFINE_GUEST_HANDLE(uint64_t); -DEFINE_GUEST_HANDLE(uint32_t); - -DEFINE_GUEST_HANDLE(xen_pfn_t); -#define PRI_xen_pfn "lx" -#endif - -/* Arch specific VIRQs definition */ -#define VIRQ_ITC VIRQ_ARCH_0 /* V. Virtual itc timer */ -#define VIRQ_MCA_CMC VIRQ_ARCH_1 /* MCA cmc interrupt */ -#define VIRQ_MCA_CPE VIRQ_ARCH_2 /* MCA cpe interrupt */ - -/* Maximum number of virtual CPUs in multi-processor guests. */ -/* keep sizeof(struct shared_page) <= PAGE_SIZE. - * this is checked in arch/ia64/xen/hypervisor.c. */ -#define MAX_VIRT_CPUS 64 - -#ifndef __ASSEMBLY__ - -#define INVALID_MFN (~0UL) - -union vac { - unsigned long value; - struct { - int a_int:1; - int a_from_int_cr:1; - int a_to_int_cr:1; - int a_from_psr:1; - int a_from_cpuid:1; - int a_cover:1; - int a_bsw:1; - long reserved:57; - }; -}; - -union vdc { - unsigned long value; - struct { - int d_vmsw:1; - int d_extint:1; - int d_ibr_dbr:1; - int d_pmc:1; - int d_to_pmd:1; - int d_itm:1; - long reserved:58; - }; -}; - -struct mapped_regs { - union vac vac; - union vdc vdc; - unsigned long virt_env_vaddr; - unsigned long reserved1[29]; - unsigned long vhpi; - unsigned long reserved2[95]; - union { - unsigned long vgr[16]; - unsigned long bank1_regs[16]; /* bank1 regs (r16-r31) - when bank0 active */ - }; - union { - unsigned long vbgr[16]; - unsigned long bank0_regs[16]; /* bank0 regs (r16-r31) - when bank1 active */ - }; - unsigned long vnat; - unsigned long vbnat; - unsigned long vcpuid[5]; - unsigned long reserved3[11]; - unsigned long vpsr; - unsigned long vpr; - unsigned long reserved4[76]; - union { - unsigned long vcr[128]; - struct { - unsigned long dcr; /* CR0 */ - unsigned long itm; - unsigned long iva; - unsigned long rsv1[5]; - unsigned long pta; /* CR8 */ - unsigned long rsv2[7]; - unsigned long ipsr; /* CR16 */ - unsigned long isr; - unsigned long rsv3; - unsigned long iip; - unsigned long ifa; - unsigned long itir; - unsigned long iipa; - unsigned long ifs; - unsigned long iim; /* CR24 */ - unsigned long iha; - unsigned long rsv4[38]; - unsigned long lid; /* CR64 */ - unsigned long ivr; - unsigned long tpr; - unsigned long eoi; - unsigned long irr[4]; - unsigned long itv; /* CR72 */ - unsigned long pmv; - unsigned long cmcv; - unsigned long rsv5[5]; - unsigned long lrr0; /* CR80 */ - unsigned long lrr1; - unsigned long rsv6[46]; - }; - }; - union { - unsigned long reserved5[128]; - struct { - unsigned long precover_ifs; - unsigned long unat; /* not sure if this is needed - until NaT arch is done */ - int interrupt_collection_enabled; /* virtual psr.ic */ - - /* virtual interrupt deliverable flag is - * evtchn_upcall_mask in shared info area now. - * interrupt_mask_addr is the address - * of evtchn_upcall_mask for current vcpu - */ - unsigned char *interrupt_mask_addr; - int pending_interruption; - unsigned char vpsr_pp; - unsigned char vpsr_dfh; - unsigned char hpsr_dfh; - unsigned char hpsr_mfh; - unsigned long reserved5_1[4]; - int metaphysical_mode; /* 1 = use metaphys mapping - 0 = use virtual */ - int banknum; /* 0 or 1, which virtual - register bank is active */ - unsigned long rrs[8]; /* region registers */ - unsigned long krs[8]; /* kernel registers */ - unsigned long tmp[16]; /* temp registers - (e.g. for hyperprivops) */ - - /* itc paravirtualization - * vAR.ITC = mAR.ITC + itc_offset - * itc_last is one which was lastly passed to - * the guest OS in order to prevent it from - * going backwords. - */ - unsigned long itc_offset; - unsigned long itc_last; - }; - }; -}; - -struct arch_vcpu_info { - /* nothing */ -}; - -/* - * This structure is used for magic page in domain pseudo physical address - * space and the result of XENMEM_machine_memory_map. - * As the XENMEM_machine_memory_map result, - * xen_memory_map::nr_entries indicates the size in bytes - * including struct xen_ia64_memmap_info. Not the number of entries. - */ -struct xen_ia64_memmap_info { - uint64_t efi_memmap_size; /* size of EFI memory map */ - uint64_t efi_memdesc_size; /* size of an EFI memory map - * descriptor */ - uint32_t efi_memdesc_version; /* memory descriptor version */ - void *memdesc[0]; /* array of efi_memory_desc_t */ -}; - -struct arch_shared_info { - /* PFN of the start_info page. */ - unsigned long start_info_pfn; - - /* Interrupt vector for event channel. */ - int evtchn_vector; - - /* PFN of memmap_info page */ - unsigned int memmap_info_num_pages; /* currently only = 1 case is - supported. */ - unsigned long memmap_info_pfn; - - uint64_t pad[31]; -}; - -struct xen_callback { - unsigned long ip; -}; -typedef struct xen_callback xen_callback_t; - -#endif /* !__ASSEMBLY__ */ - -#include - -/* Size of the shared_info area (this is not related to page size). */ -#define XSI_SHIFT 14 -#define XSI_SIZE (1 << XSI_SHIFT) -/* Log size of mapped_regs area (64 KB - only 4KB is used). */ -#define XMAPPEDREGS_SHIFT 12 -#define XMAPPEDREGS_SIZE (1 << XMAPPEDREGS_SHIFT) -/* Offset of XASI (Xen arch shared info) wrt XSI_BASE. */ -#define XMAPPEDREGS_OFS XSI_SIZE - -/* Hyperprivops. */ -#define HYPERPRIVOP_START 0x1 -#define HYPERPRIVOP_RFI (HYPERPRIVOP_START + 0x0) -#define HYPERPRIVOP_RSM_DT (HYPERPRIVOP_START + 0x1) -#define HYPERPRIVOP_SSM_DT (HYPERPRIVOP_START + 0x2) -#define HYPERPRIVOP_COVER (HYPERPRIVOP_START + 0x3) -#define HYPERPRIVOP_ITC_D (HYPERPRIVOP_START + 0x4) -#define HYPERPRIVOP_ITC_I (HYPERPRIVOP_START + 0x5) -#define HYPERPRIVOP_SSM_I (HYPERPRIVOP_START + 0x6) -#define HYPERPRIVOP_GET_IVR (HYPERPRIVOP_START + 0x7) -#define HYPERPRIVOP_GET_TPR (HYPERPRIVOP_START + 0x8) -#define HYPERPRIVOP_SET_TPR (HYPERPRIVOP_START + 0x9) -#define HYPERPRIVOP_EOI (HYPERPRIVOP_START + 0xa) -#define HYPERPRIVOP_SET_ITM (HYPERPRIVOP_START + 0xb) -#define HYPERPRIVOP_THASH (HYPERPRIVOP_START + 0xc) -#define HYPERPRIVOP_PTC_GA (HYPERPRIVOP_START + 0xd) -#define HYPERPRIVOP_ITR_D (HYPERPRIVOP_START + 0xe) -#define HYPERPRIVOP_GET_RR (HYPERPRIVOP_START + 0xf) -#define HYPERPRIVOP_SET_RR (HYPERPRIVOP_START + 0x10) -#define HYPERPRIVOP_SET_KR (HYPERPRIVOP_START + 0x11) -#define HYPERPRIVOP_FC (HYPERPRIVOP_START + 0x12) -#define HYPERPRIVOP_GET_CPUID (HYPERPRIVOP_START + 0x13) -#define HYPERPRIVOP_GET_PMD (HYPERPRIVOP_START + 0x14) -#define HYPERPRIVOP_GET_EFLAG (HYPERPRIVOP_START + 0x15) -#define HYPERPRIVOP_SET_EFLAG (HYPERPRIVOP_START + 0x16) -#define HYPERPRIVOP_RSM_BE (HYPERPRIVOP_START + 0x17) -#define HYPERPRIVOP_GET_PSR (HYPERPRIVOP_START + 0x18) -#define HYPERPRIVOP_SET_RR0_TO_RR4 (HYPERPRIVOP_START + 0x19) -#define HYPERPRIVOP_MAX (0x1a) - -/* Fast and light hypercalls. */ -#define __HYPERVISOR_ia64_fast_eoi __HYPERVISOR_arch_1 - -/* Xencomm macros. */ -#define XENCOMM_INLINE_MASK 0xf800000000000000UL -#define XENCOMM_INLINE_FLAG 0x8000000000000000UL - -#ifndef __ASSEMBLY__ - -/* - * Optimization features. - * The hypervisor may do some special optimizations for guests. This hypercall - * can be used to switch on/of these special optimizations. - */ -#define __HYPERVISOR_opt_feature 0x700UL - -#define XEN_IA64_OPTF_OFF 0x0 -#define XEN_IA64_OPTF_ON 0x1 - -/* - * If this feature is switched on, the hypervisor inserts the - * tlb entries without calling the guests traphandler. - * This is useful in guests using region 7 for identity mapping - * like the linux kernel does. - */ -#define XEN_IA64_OPTF_IDENT_MAP_REG7 1 - -/* Identity mapping of region 4 addresses in HVM. */ -#define XEN_IA64_OPTF_IDENT_MAP_REG4 2 - -/* Identity mapping of region 5 addresses in HVM. */ -#define XEN_IA64_OPTF_IDENT_MAP_REG5 3 - -#define XEN_IA64_OPTF_IDENT_MAP_NOT_SET (0) - -struct xen_ia64_opt_feature { - unsigned long cmd; /* Which feature */ - unsigned char on; /* Switch feature on/off */ - union { - struct { - /* The page protection bit mask of the pte. - * This will be or'ed with the pte. */ - unsigned long pgprot; - unsigned long key; /* A protection key for itir.*/ - }; - }; -}; - -#endif /* __ASSEMBLY__ */ - -#endif /* _ASM_IA64_XEN_INTERFACE_H */ diff --git a/arch/ia64/include/asm/xen/irq.h b/arch/ia64/include/asm/xen/irq.h deleted file mode 100644 index a90450983003..000000000000 --- a/arch/ia64/include/asm/xen/irq.h +++ /dev/null @@ -1,44 +0,0 @@ -/****************************************************************************** - * arch/ia64/include/asm/xen/irq.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#ifndef _ASM_IA64_XEN_IRQ_H -#define _ASM_IA64_XEN_IRQ_H - -/* - * The flat IRQ space is divided into two regions: - * 1. A one-to-one mapping of real physical IRQs. This space is only used - * if we have physical device-access privilege. This region is at the - * start of the IRQ space so that existing device drivers do not need - * to be modified to translate physical IRQ numbers into our IRQ space. - * 3. A dynamic mapping of inter-domain and Xen-sourced virtual IRQs. These - * are bound using the provided bind/unbind functions. - */ - -#define XEN_PIRQ_BASE 0 -#define XEN_NR_PIRQS 256 - -#define XEN_DYNIRQ_BASE (XEN_PIRQ_BASE + XEN_NR_PIRQS) -#define XEN_NR_DYNIRQS (NR_CPUS * 8) - -#define XEN_NR_IRQS (XEN_NR_PIRQS + XEN_NR_DYNIRQS) - -#endif /* _ASM_IA64_XEN_IRQ_H */ diff --git a/arch/ia64/include/asm/xen/minstate.h b/arch/ia64/include/asm/xen/minstate.h deleted file mode 100644 index 00cf03e0cb82..000000000000 --- a/arch/ia64/include/asm/xen/minstate.h +++ /dev/null @@ -1,143 +0,0 @@ - -#ifdef CONFIG_VIRT_CPU_ACCOUNTING_NATIVE -/* read ar.itc in advance, and use it before leaving bank 0 */ -#define XEN_ACCOUNT_GET_STAMP \ - MOV_FROM_ITC(pUStk, p6, r20, r2); -#else -#define XEN_ACCOUNT_GET_STAMP -#endif - -/* - * DO_SAVE_MIN switches to the kernel stacks (if necessary) and saves - * the minimum state necessary that allows us to turn psr.ic back - * on. - * - * Assumed state upon entry: - * psr.ic: off - * r31: contains saved predicates (pr) - * - * Upon exit, the state is as follows: - * psr.ic: off - * r2 = points to &pt_regs.r16 - * r8 = contents of ar.ccv - * r9 = contents of ar.csd - * r10 = contents of ar.ssd - * r11 = FPSR_DEFAULT - * r12 = kernel sp (kernel virtual address) - * r13 = points to current task_struct (kernel virtual address) - * p15 = TRUE if psr.i is set in cr.ipsr - * predicate registers (other than p2, p3, and p15), b6, r3, r14, r15: - * preserved - * CONFIG_XEN note: p6/p7 are not preserved - * - * Note that psr.ic is NOT turned on by this macro. This is so that - * we can pass interruption state as arguments to a handler. - */ -#define XEN_DO_SAVE_MIN(__COVER,SAVE_IFS,EXTRA,WORKAROUND) \ - mov r16=IA64_KR(CURRENT); /* M */ \ - mov r27=ar.rsc; /* M */ \ - mov r20=r1; /* A */ \ - mov r25=ar.unat; /* M */ \ - MOV_FROM_IPSR(p0,r29); /* M */ \ - MOV_FROM_IIP(r28); /* M */ \ - mov r21=ar.fpsr; /* M */ \ - mov r26=ar.pfs; /* I */ \ - __COVER; /* B;; (or nothing) */ \ - adds r16=IA64_TASK_THREAD_ON_USTACK_OFFSET,r16; \ - ;; \ - ld1 r17=[r16]; /* load current->thread.on_ustack flag */ \ - st1 [r16]=r0; /* clear current->thread.on_ustack flag */ \ - adds r1=-IA64_TASK_THREAD_ON_USTACK_OFFSET,r16 \ - /* switch from user to kernel RBS: */ \ - ;; \ - invala; /* M */ \ - /* SAVE_IFS;*/ /* see xen special handling below */ \ - cmp.eq pKStk,pUStk=r0,r17; /* are we in kernel mode already? */ \ - ;; \ -(pUStk) mov ar.rsc=0; /* set enforced lazy mode, pl 0, little-endian, loadrs=0 */ \ - ;; \ -(pUStk) mov.m r24=ar.rnat; \ -(pUStk) addl r22=IA64_RBS_OFFSET,r1; /* compute base of RBS */ \ -(pKStk) mov r1=sp; /* get sp */ \ - ;; \ -(pUStk) lfetch.fault.excl.nt1 [r22]; \ -(pUStk) addl r1=IA64_STK_OFFSET-IA64_PT_REGS_SIZE,r1; /* compute base of memory stack */ \ -(pUStk) mov r23=ar.bspstore; /* save ar.bspstore */ \ - ;; \ -(pUStk) mov ar.bspstore=r22; /* switch to kernel RBS */ \ -(pKStk) addl r1=-IA64_PT_REGS_SIZE,r1; /* if in kernel mode, use sp (r12) */ \ - ;; \ -(pUStk) mov r18=ar.bsp; \ -(pUStk) mov ar.rsc=0x3; /* set eager mode, pl 0, little-endian, loadrs=0 */ \ - adds r17=2*L1_CACHE_BYTES,r1; /* really: biggest cache-line size */ \ - adds r16=PT(CR_IPSR),r1; \ - ;; \ - lfetch.fault.excl.nt1 [r17],L1_CACHE_BYTES; \ - st8 [r16]=r29; /* save cr.ipsr */ \ - ;; \ - lfetch.fault.excl.nt1 [r17]; \ - tbit.nz p15,p0=r29,IA64_PSR_I_BIT; \ - mov r29=b0 \ - ;; \ - WORKAROUND; \ - adds r16=PT(R8),r1; /* initialize first base pointer */ \ - adds r17=PT(R9),r1; /* initialize second base pointer */ \ -(pKStk) mov r18=r0; /* make sure r18 isn't NaT */ \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r8,16; \ -.mem.offset 8,0; st8.spill [r17]=r9,16; \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r10,24; \ - movl r8=XSI_PRECOVER_IFS; \ -.mem.offset 8,0; st8.spill [r17]=r11,24; \ - ;; \ - /* xen special handling for possibly lazy cover */ \ - /* SAVE_MIN case in dispatch_ia32_handler: mov r30=r0 */ \ - ld8 r30=[r8]; \ -(pUStk) sub r18=r18,r22; /* r18=RSE.ndirty*8 */ \ - st8 [r16]=r28,16; /* save cr.iip */ \ - ;; \ - st8 [r17]=r30,16; /* save cr.ifs */ \ - mov r8=ar.ccv; \ - mov r9=ar.csd; \ - mov r10=ar.ssd; \ - movl r11=FPSR_DEFAULT; /* L-unit */ \ - ;; \ - st8 [r16]=r25,16; /* save ar.unat */ \ - st8 [r17]=r26,16; /* save ar.pfs */ \ - shl r18=r18,16; /* compute ar.rsc to be used for "loadrs" */ \ - ;; \ - st8 [r16]=r27,16; /* save ar.rsc */ \ -(pUStk) st8 [r17]=r24,16; /* save ar.rnat */ \ -(pKStk) adds r17=16,r17; /* skip over ar_rnat field */ \ - ;; /* avoid RAW on r16 & r17 */ \ -(pUStk) st8 [r16]=r23,16; /* save ar.bspstore */ \ - st8 [r17]=r31,16; /* save predicates */ \ -(pKStk) adds r16=16,r16; /* skip over ar_bspstore field */ \ - ;; \ - st8 [r16]=r29,16; /* save b0 */ \ - st8 [r17]=r18,16; /* save ar.rsc value for "loadrs" */ \ - cmp.eq pNonSys,pSys=r0,r0 /* initialize pSys=0, pNonSys=1 */ \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r20,16; /* save original r1 */ \ -.mem.offset 8,0; st8.spill [r17]=r12,16; \ - adds r12=-16,r1; /* switch to kernel memory stack (with 16 bytes of scratch) */ \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r13,16; \ -.mem.offset 8,0; st8.spill [r17]=r21,16; /* save ar.fpsr */ \ - mov r13=IA64_KR(CURRENT); /* establish `current' */ \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r15,16; \ -.mem.offset 8,0; st8.spill [r17]=r14,16; \ - ;; \ -.mem.offset 0,0; st8.spill [r16]=r2,16; \ -.mem.offset 8,0; st8.spill [r17]=r3,16; \ - XEN_ACCOUNT_GET_STAMP \ - adds r2=IA64_PT_REGS_R16_OFFSET,r1; \ - ;; \ - EXTRA; \ - movl r1=__gp; /* establish kernel global pointer */ \ - ;; \ - ACCOUNT_SYS_ENTER \ - BSW_1(r3,r14); /* switch back to bank 1 (must be last in insn group) */ \ - ;; diff --git a/arch/ia64/include/asm/xen/page-coherent.h b/arch/ia64/include/asm/xen/page-coherent.h deleted file mode 100644 index 96e42f97fa1f..000000000000 --- a/arch/ia64/include/asm/xen/page-coherent.h +++ /dev/null @@ -1,38 +0,0 @@ -#ifndef _ASM_IA64_XEN_PAGE_COHERENT_H -#define _ASM_IA64_XEN_PAGE_COHERENT_H - -#include -#include -#include - -static inline void *xen_alloc_coherent_pages(struct device *hwdev, size_t size, - dma_addr_t *dma_handle, gfp_t flags, - struct dma_attrs *attrs) -{ - void *vstart = (void*)__get_free_pages(flags, get_order(size)); - *dma_handle = virt_to_phys(vstart); - return vstart; -} - -static inline void xen_free_coherent_pages(struct device *hwdev, size_t size, - void *cpu_addr, dma_addr_t dma_handle, - struct dma_attrs *attrs) -{ - free_pages((unsigned long) cpu_addr, get_order(size)); -} - -static inline void xen_dma_map_page(struct device *hwdev, struct page *page, - unsigned long offset, size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) { } - -static inline void xen_dma_unmap_page(struct device *hwdev, dma_addr_t handle, - size_t size, enum dma_data_direction dir, - struct dma_attrs *attrs) { } - -static inline void xen_dma_sync_single_for_cpu(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir) { } - -static inline void xen_dma_sync_single_for_device(struct device *hwdev, - dma_addr_t handle, size_t size, enum dma_data_direction dir) { } - -#endif /* _ASM_IA64_XEN_PAGE_COHERENT_H */ diff --git a/arch/ia64/include/asm/xen/page.h b/arch/ia64/include/asm/xen/page.h deleted file mode 100644 index 03441a780b5b..000000000000 --- a/arch/ia64/include/asm/xen/page.h +++ /dev/null @@ -1,65 +0,0 @@ -/****************************************************************************** - * arch/ia64/include/asm/xen/page.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#ifndef _ASM_IA64_XEN_PAGE_H -#define _ASM_IA64_XEN_PAGE_H - -#define INVALID_P2M_ENTRY (~0UL) - -static inline unsigned long mfn_to_pfn(unsigned long mfn) -{ - return mfn; -} - -static inline unsigned long pfn_to_mfn(unsigned long pfn) -{ - return pfn; -} - -#define phys_to_machine_mapping_valid(_x) (1) - -static inline void *mfn_to_virt(unsigned long mfn) -{ - return __va(mfn << PAGE_SHIFT); -} - -static inline unsigned long virt_to_mfn(void *virt) -{ - return __pa(virt) >> PAGE_SHIFT; -} - -/* for tpmfront.c */ -static inline unsigned long virt_to_machine(void *virt) -{ - return __pa(virt); -} - -static inline void set_phys_to_machine(unsigned long pfn, unsigned long mfn) -{ - /* nothing */ -} - -#define pte_mfn(_x) pte_pfn(_x) -#define mfn_pte(_x, _y) __pte_ma(0) /* unmodified use */ -#define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */ - -#endif /* _ASM_IA64_XEN_PAGE_H */ diff --git a/arch/ia64/include/asm/xen/patchlist.h b/arch/ia64/include/asm/xen/patchlist.h deleted file mode 100644 index eae944e88846..000000000000 --- a/arch/ia64/include/asm/xen/patchlist.h +++ /dev/null @@ -1,38 +0,0 @@ -/****************************************************************************** - * arch/ia64/include/asm/xen/patchlist.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#define __paravirt_start_gate_fsyscall_patchlist \ - __xen_start_gate_fsyscall_patchlist -#define __paravirt_end_gate_fsyscall_patchlist \ - __xen_end_gate_fsyscall_patchlist -#define __paravirt_start_gate_brl_fsys_bubble_down_patchlist \ - __xen_start_gate_brl_fsys_bubble_down_patchlist -#define __paravirt_end_gate_brl_fsys_bubble_down_patchlist \ - __xen_end_gate_brl_fsys_bubble_down_patchlist -#define __paravirt_start_gate_vtop_patchlist \ - __xen_start_gate_vtop_patchlist -#define __paravirt_end_gate_vtop_patchlist \ - __xen_end_gate_vtop_patchlist -#define __paravirt_start_gate_mckinley_e9_patchlist \ - __xen_start_gate_mckinley_e9_patchlist -#define __paravirt_end_gate_mckinley_e9_patchlist \ - __xen_end_gate_mckinley_e9_patchlist diff --git a/arch/ia64/include/asm/xen/privop.h b/arch/ia64/include/asm/xen/privop.h deleted file mode 100644 index fb4ec5e0b066..000000000000 --- a/arch/ia64/include/asm/xen/privop.h +++ /dev/null @@ -1,135 +0,0 @@ -#ifndef _ASM_IA64_XEN_PRIVOP_H -#define _ASM_IA64_XEN_PRIVOP_H - -/* - * Copyright (C) 2005 Hewlett-Packard Co - * Dan Magenheimer - * - * Paravirtualizations of privileged operations for Xen/ia64 - * - * - * inline privop and paravirt_alt support - * Copyright (c) 2007 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - */ - -#ifndef __ASSEMBLY__ -#include /* arch-ia64.h requires uint64_t */ -#endif -#include - -/* At 1 MB, before per-cpu space but still addressable using addl instead - of movl. */ -#define XSI_BASE 0xfffffffffff00000 - -/* Address of mapped regs. */ -#define XMAPPEDREGS_BASE (XSI_BASE + XSI_SIZE) - -#ifdef __ASSEMBLY__ -#define XEN_HYPER_RFI break HYPERPRIVOP_RFI -#define XEN_HYPER_RSM_PSR_DT break HYPERPRIVOP_RSM_DT -#define XEN_HYPER_SSM_PSR_DT break HYPERPRIVOP_SSM_DT -#define XEN_HYPER_COVER break HYPERPRIVOP_COVER -#define XEN_HYPER_ITC_D break HYPERPRIVOP_ITC_D -#define XEN_HYPER_ITC_I break HYPERPRIVOP_ITC_I -#define XEN_HYPER_SSM_I break HYPERPRIVOP_SSM_I -#define XEN_HYPER_GET_IVR break HYPERPRIVOP_GET_IVR -#define XEN_HYPER_THASH break HYPERPRIVOP_THASH -#define XEN_HYPER_ITR_D break HYPERPRIVOP_ITR_D -#define XEN_HYPER_SET_KR break HYPERPRIVOP_SET_KR -#define XEN_HYPER_GET_PSR break HYPERPRIVOP_GET_PSR -#define XEN_HYPER_SET_RR0_TO_RR4 break HYPERPRIVOP_SET_RR0_TO_RR4 - -#define XSI_IFS (XSI_BASE + XSI_IFS_OFS) -#define XSI_PRECOVER_IFS (XSI_BASE + XSI_PRECOVER_IFS_OFS) -#define XSI_IFA (XSI_BASE + XSI_IFA_OFS) -#define XSI_ISR (XSI_BASE + XSI_ISR_OFS) -#define XSI_IIM (XSI_BASE + XSI_IIM_OFS) -#define XSI_ITIR (XSI_BASE + XSI_ITIR_OFS) -#define XSI_PSR_I_ADDR (XSI_BASE + XSI_PSR_I_ADDR_OFS) -#define XSI_PSR_IC (XSI_BASE + XSI_PSR_IC_OFS) -#define XSI_IPSR (XSI_BASE + XSI_IPSR_OFS) -#define XSI_IIP (XSI_BASE + XSI_IIP_OFS) -#define XSI_B1NAT (XSI_BASE + XSI_B1NATS_OFS) -#define XSI_BANK1_R16 (XSI_BASE + XSI_BANK1_R16_OFS) -#define XSI_BANKNUM (XSI_BASE + XSI_BANKNUM_OFS) -#define XSI_IHA (XSI_BASE + XSI_IHA_OFS) -#define XSI_ITC_OFFSET (XSI_BASE + XSI_ITC_OFFSET_OFS) -#define XSI_ITC_LAST (XSI_BASE + XSI_ITC_LAST_OFS) -#endif - -#ifndef __ASSEMBLY__ - -/************************************************/ -/* Instructions paravirtualized for correctness */ -/************************************************/ - -/* "fc" and "thash" are privilege-sensitive instructions, meaning they - * may have different semantics depending on whether they are executed - * at PL0 vs PL!=0. When paravirtualized, these instructions mustn't - * be allowed to execute directly, lest incorrect semantics result. */ -extern void xen_fc(void *addr); -extern unsigned long xen_thash(unsigned long addr); - -/* Note that "ttag" and "cover" are also privilege-sensitive; "ttag" - * is not currently used (though it may be in a long-format VHPT system!) - * and the semantics of cover only change if psr.ic is off which is very - * rare (and currently non-existent outside of assembly code */ - -/* There are also privilege-sensitive registers. These registers are - * readable at any privilege level but only writable at PL0. */ -extern unsigned long xen_get_cpuid(int index); -extern unsigned long xen_get_pmd(int index); - -#ifndef ASM_SUPPORTED -extern unsigned long xen_get_eflag(void); /* see xen_ia64_getreg */ -extern void xen_set_eflag(unsigned long); /* see xen_ia64_setreg */ -#endif - -/************************************************/ -/* Instructions paravirtualized for performance */ -/************************************************/ - -/* Xen uses memory-mapped virtual privileged registers for access to many - * performance-sensitive privileged registers. Some, like the processor - * status register (psr), are broken up into multiple memory locations. - * Others, like "pend", are abstractions based on privileged registers. - * "Pend" is guaranteed to be set if reading cr.ivr would return a - * (non-spurious) interrupt. */ -#define XEN_MAPPEDREGS ((struct mapped_regs *)XMAPPEDREGS_BASE) - -#define XSI_PSR_I \ - (*XEN_MAPPEDREGS->interrupt_mask_addr) -#define xen_get_virtual_psr_i() \ - (!XSI_PSR_I) -#define xen_set_virtual_psr_i(_val) \ - ({ XSI_PSR_I = (uint8_t)(_val) ? 0 : 1; }) -#define xen_set_virtual_psr_ic(_val) \ - ({ XEN_MAPPEDREGS->interrupt_collection_enabled = _val ? 1 : 0; }) -#define xen_get_virtual_pend() \ - (*(((uint8_t *)XEN_MAPPEDREGS->interrupt_mask_addr) - 1)) - -#ifndef ASM_SUPPORTED -/* Although all privileged operations can be left to trap and will - * be properly handled by Xen, some are frequent enough that we use - * hyperprivops for performance. */ -extern unsigned long xen_get_psr(void); -extern unsigned long xen_get_ivr(void); -extern unsigned long xen_get_tpr(void); -extern void xen_hyper_ssm_i(void); -extern void xen_set_itm(unsigned long); -extern void xen_set_tpr(unsigned long); -extern void xen_eoi(unsigned long); -extern unsigned long xen_get_rr(unsigned long index); -extern void xen_set_rr(unsigned long index, unsigned long val); -extern void xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1, - unsigned long val2, unsigned long val3, - unsigned long val4); -extern void xen_set_kr(unsigned long index, unsigned long val); -extern void xen_ptcga(unsigned long addr, unsigned long size); -#endif /* !ASM_SUPPORTED */ - -#endif /* !__ASSEMBLY__ */ - -#endif /* _ASM_IA64_XEN_PRIVOP_H */ diff --git a/arch/ia64/include/asm/xen/xcom_hcall.h b/arch/ia64/include/asm/xen/xcom_hcall.h deleted file mode 100644 index 20b2950c71b6..000000000000 --- a/arch/ia64/include/asm/xen/xcom_hcall.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * Copyright (C) 2006 Tristan Gingold , Bull SAS - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _ASM_IA64_XEN_XCOM_HCALL_H -#define _ASM_IA64_XEN_XCOM_HCALL_H - -/* These function creates inline or mini descriptor for the parameters and - calls the corresponding xencomm_arch_hypercall_X. - Architectures should defines HYPERVISOR_xxx as xencomm_hypercall_xxx unless - they want to use their own wrapper. */ -extern int xencomm_hypercall_console_io(int cmd, int count, char *str); - -extern int xencomm_hypercall_event_channel_op(int cmd, void *op); - -extern int xencomm_hypercall_xen_version(int cmd, void *arg); - -extern int xencomm_hypercall_physdev_op(int cmd, void *op); - -extern int xencomm_hypercall_grant_table_op(unsigned int cmd, void *op, - unsigned int count); - -extern int xencomm_hypercall_sched_op(int cmd, void *arg); - -extern int xencomm_hypercall_multicall(void *call_list, int nr_calls); - -extern int xencomm_hypercall_callback_op(int cmd, void *arg); - -extern int xencomm_hypercall_memory_op(unsigned int cmd, void *arg); - -extern int xencomm_hypercall_suspend(unsigned long srec); - -extern long xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg); - -extern long xencomm_hypercall_opt_feature(void *arg); - -#endif /* _ASM_IA64_XEN_XCOM_HCALL_H */ diff --git a/arch/ia64/include/asm/xen/xencomm.h b/arch/ia64/include/asm/xen/xencomm.h deleted file mode 100644 index cded677bebf2..000000000000 --- a/arch/ia64/include/asm/xen/xencomm.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (C) 2006 Hollis Blanchard , IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#ifndef _ASM_IA64_XEN_XENCOMM_H -#define _ASM_IA64_XEN_XENCOMM_H - -#include -#include - -/* Must be called before any hypercall. */ -extern void xencomm_initialize(void); -extern int xencomm_is_initialized(void); - -/* Check if virtual contiguity means physical contiguity - * where the passed address is a pointer value in virtual address. - * On ia64, identity mapping area in region 7 or the piece of region 5 - * that is mapped by itr[IA64_TR_KERNEL]/dtr[IA64_TR_KERNEL] - */ -static inline int xencomm_is_phys_contiguous(unsigned long addr) -{ - return (PAGE_OFFSET <= addr && - addr < (PAGE_OFFSET + (1UL << IA64_MAX_PHYS_BITS))) || - (KERNEL_START <= addr && - addr < KERNEL_START + KERNEL_TR_PAGE_SIZE); -} - -#endif /* _ASM_IA64_XEN_XENCOMM_H */ diff --git a/arch/ia64/include/uapi/asm/break.h b/arch/ia64/include/uapi/asm/break.h index e90c40ec9edf..f03402039896 100644 --- a/arch/ia64/include/uapi/asm/break.h +++ b/arch/ia64/include/uapi/asm/break.h @@ -20,13 +20,4 @@ */ #define __IA64_BREAK_SYSCALL 0x100000 -/* - * Xen specific break numbers: - */ -#define __IA64_XEN_HYPERCALL 0x1000 -/* [__IA64_XEN_HYPERPRIVOP_START, __IA64_XEN_HYPERPRIVOP_MAX] is used - for xen hyperprivops */ -#define __IA64_XEN_HYPERPRIVOP_START 0x1 -#define __IA64_XEN_HYPERPRIVOP_MAX 0x1a - #endif /* _ASM_IA64_BREAK_H */ diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 59d52e3aef12..bfa19311e09c 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -53,7 +53,6 @@ #include #include #include -#include #define BAD_MADT_ENTRY(entry, end) ( \ (!entry) || (unsigned long)entry + sizeof(*entry) > end || \ @@ -120,8 +119,6 @@ acpi_get_sysname(void) return "uv"; else return "sn2"; - } else if (xen_pv_domain() && !strcmp(hdr->oem_id, "XEN")) { - return "xen"; } #ifdef CONFIG_INTEL_IOMMU diff --git a/arch/ia64/kernel/asm-offsets.c b/arch/ia64/kernel/asm-offsets.c index 46c9e3007315..60ef83e6db71 100644 --- a/arch/ia64/kernel/asm-offsets.c +++ b/arch/ia64/kernel/asm-offsets.c @@ -16,9 +16,6 @@ #include #include -#include -#include - #include "../kernel/sigframe.h" #include "../kernel/fsyscall_gtod_data.h" @@ -290,33 +287,4 @@ void foo(void) DEFINE(IA64_ITC_LASTCYCLE_OFFSET, offsetof (struct itc_jitter_data_t, itc_lastcycle)); -#ifdef CONFIG_XEN - BLANK(); - - DEFINE(XEN_NATIVE_ASM, XEN_NATIVE); - DEFINE(XEN_PV_DOMAIN_ASM, XEN_PV_DOMAIN); - -#define DEFINE_MAPPED_REG_OFS(sym, field) \ - DEFINE(sym, (XMAPPEDREGS_OFS + offsetof(struct mapped_regs, field))) - - DEFINE_MAPPED_REG_OFS(XSI_PSR_I_ADDR_OFS, interrupt_mask_addr); - DEFINE_MAPPED_REG_OFS(XSI_IPSR_OFS, ipsr); - DEFINE_MAPPED_REG_OFS(XSI_IIP_OFS, iip); - DEFINE_MAPPED_REG_OFS(XSI_IFS_OFS, ifs); - DEFINE_MAPPED_REG_OFS(XSI_PRECOVER_IFS_OFS, precover_ifs); - DEFINE_MAPPED_REG_OFS(XSI_ISR_OFS, isr); - DEFINE_MAPPED_REG_OFS(XSI_IFA_OFS, ifa); - DEFINE_MAPPED_REG_OFS(XSI_IIPA_OFS, iipa); - DEFINE_MAPPED_REG_OFS(XSI_IIM_OFS, iim); - DEFINE_MAPPED_REG_OFS(XSI_IHA_OFS, iha); - DEFINE_MAPPED_REG_OFS(XSI_ITIR_OFS, itir); - DEFINE_MAPPED_REG_OFS(XSI_PSR_IC_OFS, interrupt_collection_enabled); - DEFINE_MAPPED_REG_OFS(XSI_BANKNUM_OFS, banknum); - DEFINE_MAPPED_REG_OFS(XSI_BANK0_R16_OFS, bank0_regs[0]); - DEFINE_MAPPED_REG_OFS(XSI_BANK1_R16_OFS, bank1_regs[0]); - DEFINE_MAPPED_REG_OFS(XSI_B0NATS_OFS, vbnat); - DEFINE_MAPPED_REG_OFS(XSI_B1NATS_OFS, vnat); - DEFINE_MAPPED_REG_OFS(XSI_ITC_OFFSET_OFS, itc_offset); - DEFINE_MAPPED_REG_OFS(XSI_ITC_LAST_OFS, itc_last); -#endif /* CONFIG_XEN */ } diff --git a/arch/ia64/kernel/head.S b/arch/ia64/kernel/head.S index 991ca336b8a2..e6f80fcf013b 100644 --- a/arch/ia64/kernel/head.S +++ b/arch/ia64/kernel/head.S @@ -416,8 +416,6 @@ start_ap: default_setup_hook = 0 // Currently nothing needs to be done. - .weak xen_setup_hook - .global hypervisor_type hypervisor_type: data8 PARAVIRT_HYPERVISOR_TYPE_DEFAULT @@ -426,7 +424,6 @@ hypervisor_type: hypervisor_setup_hooks: data8 default_setup_hook - data8 xen_setup_hook num_hypervisor_hooks = (. - hypervisor_setup_hooks) / 8 .previous diff --git a/arch/ia64/kernel/nr-irqs.c b/arch/ia64/kernel/nr-irqs.c index ee564575148e..f6769cd54bd9 100644 --- a/arch/ia64/kernel/nr-irqs.c +++ b/arch/ia64/kernel/nr-irqs.c @@ -10,15 +10,11 @@ #include #include #include -#include void foo(void) { union paravirt_nr_irqs_max { char ia64_native_nr_irqs[IA64_NATIVE_NR_IRQS]; -#ifdef CONFIG_XEN - char xen_nr_irqs[XEN_NR_IRQS]; -#endif }; DEFINE(NR_IRQS, sizeof (union paravirt_nr_irqs_max)); diff --git a/arch/ia64/kernel/paravirt_inst.h b/arch/ia64/kernel/paravirt_inst.h index 64d6d810c64b..1ad7512b5f65 100644 --- a/arch/ia64/kernel/paravirt_inst.h +++ b/arch/ia64/kernel/paravirt_inst.h @@ -22,9 +22,6 @@ #ifdef __IA64_ASM_PARAVIRTUALIZED_PVCHECK #include -#elif defined(__IA64_ASM_PARAVIRTUALIZED_XEN) -#include -#include #else #include #endif diff --git a/arch/ia64/kernel/paravirt_patchlist.h b/arch/ia64/kernel/paravirt_patchlist.h index 0684aa6c6507..67cffc3643a3 100644 --- a/arch/ia64/kernel/paravirt_patchlist.h +++ b/arch/ia64/kernel/paravirt_patchlist.h @@ -20,9 +20,5 @@ * */ -#if defined(__IA64_GATE_PARAVIRTUALIZED_XEN) -#include -#else #include -#endif diff --git a/arch/ia64/kernel/vmlinux.lds.S b/arch/ia64/kernel/vmlinux.lds.S index 0ccb28fab27e..84f8a52ac5ae 100644 --- a/arch/ia64/kernel/vmlinux.lds.S +++ b/arch/ia64/kernel/vmlinux.lds.S @@ -182,12 +182,6 @@ SECTIONS { __start_gate_section = .; *(.data..gate) __stop_gate_section = .; -#ifdef CONFIG_XEN - . = ALIGN(PAGE_SIZE); - __xen_start_gate_section = .; - *(.data..gate.xen) - __xen_stop_gate_section = .; -#endif } /* * make sure the gate page doesn't expose diff --git a/arch/ia64/xen/Kconfig b/arch/ia64/xen/Kconfig deleted file mode 100644 index 5d8a06b0ddf7..000000000000 --- a/arch/ia64/xen/Kconfig +++ /dev/null @@ -1,25 +0,0 @@ -# -# This Kconfig describes xen/ia64 options -# - -config XEN - bool "Xen hypervisor support" - default y - depends on PARAVIRT && MCKINLEY && IA64_PAGE_SIZE_16KB - select XEN_XENCOMM - select NO_IDLE_HZ - # followings are required to save/restore. - select ARCH_SUSPEND_POSSIBLE - select SUSPEND - select PM_SLEEP - help - Enable Xen hypervisor support. Resulting kernel runs - both as a guest OS on Xen and natively on hardware. - -config XEN_XENCOMM - depends on XEN - bool - -config NO_IDLE_HZ - depends on XEN - bool diff --git a/arch/ia64/xen/Makefile b/arch/ia64/xen/Makefile deleted file mode 100644 index e6f4a0a74228..000000000000 --- a/arch/ia64/xen/Makefile +++ /dev/null @@ -1,37 +0,0 @@ -# -# Makefile for Xen components -# - -obj-y := hypercall.o xenivt.o xensetup.o xen_pv_ops.o irq_xen.o \ - hypervisor.o xencomm.o xcom_hcall.o grant-table.o time.o suspend.o \ - gate-data.o - -obj-$(CONFIG_IA64_GENERIC) += machvec.o - -# The gate DSO image is built using a special linker script. -include $(srctree)/arch/ia64/kernel/Makefile.gate - -# tell compiled for xen -CPPFLAGS_gate.lds += -D__IA64_GATE_PARAVIRTUALIZED_XEN -AFLAGS_gate.o += -D__IA64_ASM_PARAVIRTUALIZED_XEN -D__IA64_GATE_PARAVIRTUALIZED_XEN - -# use same file of native. -$(obj)/gate.o: $(src)/../kernel/gate.S FORCE - $(call if_changed_dep,as_o_S) -$(obj)/gate.lds: $(src)/../kernel/gate.lds.S FORCE - $(call if_changed_dep,cpp_lds_S) - - -AFLAGS_xenivt.o += -D__IA64_ASM_PARAVIRTUALIZED_XEN - -# xen multi compile -ASM_PARAVIRT_MULTI_COMPILE_SRCS = ivt.S entry.S fsys.S -ASM_PARAVIRT_OBJS = $(addprefix xen-,$(ASM_PARAVIRT_MULTI_COMPILE_SRCS:.S=.o)) -obj-y += $(ASM_PARAVIRT_OBJS) -define paravirtualized_xen -AFLAGS_$(1) += -D__IA64_ASM_PARAVIRTUALIZED_XEN -endef -$(foreach o,$(ASM_PARAVIRT_OBJS),$(eval $(call paravirtualized_xen,$(o)))) - -$(obj)/xen-%.o: $(src)/../kernel/%.S FORCE - $(call if_changed_dep,as_o_S) diff --git a/arch/ia64/xen/gate-data.S b/arch/ia64/xen/gate-data.S deleted file mode 100644 index 6f95b6b32a4e..000000000000 --- a/arch/ia64/xen/gate-data.S +++ /dev/null @@ -1,3 +0,0 @@ - .section .data..gate.xen, "aw" - - .incbin "arch/ia64/xen/gate.so" diff --git a/arch/ia64/xen/grant-table.c b/arch/ia64/xen/grant-table.c deleted file mode 100644 index c18281332f84..000000000000 --- a/arch/ia64/xen/grant-table.c +++ /dev/null @@ -1,94 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/grant-table.c - * - * Copyright (c) 2006 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include -#include -#include -#include - -#include -#include -#include - -#include - -/**************************************************************************** - * grant table hack - * cmd: GNTTABOP_xxx - */ - -int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes, - unsigned long max_nr_gframes, - struct grant_entry **__shared) -{ - *__shared = __va(frames[0] << PAGE_SHIFT); - return 0; -} - -void arch_gnttab_unmap_shared(struct grant_entry *shared, - unsigned long nr_gframes) -{ - /* nothing */ -} - -static void -gnttab_map_grant_ref_pre(struct gnttab_map_grant_ref *uop) -{ - uint32_t flags; - - flags = uop->flags; - - if (flags & GNTMAP_host_map) { - if (flags & GNTMAP_application_map) { - printk(KERN_DEBUG - "GNTMAP_application_map is not supported yet: " - "flags 0x%x\n", flags); - BUG(); - } - if (flags & GNTMAP_contains_pte) { - printk(KERN_DEBUG - "GNTMAP_contains_pte is not supported yet: " - "flags 0x%x\n", flags); - BUG(); - } - } else if (flags & GNTMAP_device_map) { - printk("GNTMAP_device_map is not supported yet 0x%x\n", flags); - BUG(); /* not yet. actually this flag is not used. */ - } else { - BUG(); - } -} - -int -HYPERVISOR_grant_table_op(unsigned int cmd, void *uop, unsigned int count) -{ - if (cmd == GNTTABOP_map_grant_ref) { - unsigned int i; - for (i = 0; i < count; i++) { - gnttab_map_grant_ref_pre( - (struct gnttab_map_grant_ref *)uop + i); - } - } - return xencomm_hypercall_grant_table_op(cmd, uop, count); -} - -EXPORT_SYMBOL(HYPERVISOR_grant_table_op); diff --git a/arch/ia64/xen/hypercall.S b/arch/ia64/xen/hypercall.S deleted file mode 100644 index 08847aa12583..000000000000 --- a/arch/ia64/xen/hypercall.S +++ /dev/null @@ -1,88 +0,0 @@ -/* - * Support routines for Xen hypercalls - * - * Copyright (C) 2005 Dan Magenheimer - * Copyright (C) 2008 Yaozu (Eddie) Dong - */ - -#include -#include -#include - -#ifdef __INTEL_COMPILER -/* - * Hypercalls without parameter. - */ -#define __HCALL0(name,hcall) \ - GLOBAL_ENTRY(name); \ - break hcall; \ - br.ret.sptk.many rp; \ - END(name) - -/* - * Hypercalls with 1 parameter. - */ -#define __HCALL1(name,hcall) \ - GLOBAL_ENTRY(name); \ - mov r8=r32; \ - break hcall; \ - br.ret.sptk.many rp; \ - END(name) - -/* - * Hypercalls with 2 parameters. - */ -#define __HCALL2(name,hcall) \ - GLOBAL_ENTRY(name); \ - mov r8=r32; \ - mov r9=r33; \ - break hcall; \ - br.ret.sptk.many rp; \ - END(name) - -__HCALL0(xen_get_psr, HYPERPRIVOP_GET_PSR) -__HCALL0(xen_get_ivr, HYPERPRIVOP_GET_IVR) -__HCALL0(xen_get_tpr, HYPERPRIVOP_GET_TPR) -__HCALL0(xen_hyper_ssm_i, HYPERPRIVOP_SSM_I) - -__HCALL1(xen_set_tpr, HYPERPRIVOP_SET_TPR) -__HCALL1(xen_eoi, HYPERPRIVOP_EOI) -__HCALL1(xen_thash, HYPERPRIVOP_THASH) -__HCALL1(xen_set_itm, HYPERPRIVOP_SET_ITM) -__HCALL1(xen_get_rr, HYPERPRIVOP_GET_RR) -__HCALL1(xen_fc, HYPERPRIVOP_FC) -__HCALL1(xen_get_cpuid, HYPERPRIVOP_GET_CPUID) -__HCALL1(xen_get_pmd, HYPERPRIVOP_GET_PMD) - -__HCALL2(xen_ptcga, HYPERPRIVOP_PTC_GA) -__HCALL2(xen_set_rr, HYPERPRIVOP_SET_RR) -__HCALL2(xen_set_kr, HYPERPRIVOP_SET_KR) - -GLOBAL_ENTRY(xen_set_rr0_to_rr4) - mov r8=r32 - mov r9=r33 - mov r10=r34 - mov r11=r35 - mov r14=r36 - XEN_HYPER_SET_RR0_TO_RR4 - br.ret.sptk.many rp - ;; -END(xen_set_rr0_to_rr4) -#endif - -GLOBAL_ENTRY(xen_send_ipi) - mov r14=r32 - mov r15=r33 - mov r2=0x400 - break 0x1000 - ;; - br.ret.sptk.many rp - ;; -END(xen_send_ipi) - -GLOBAL_ENTRY(__hypercall) - mov r2=r37 - break 0x1000 - br.ret.sptk.many b0 - ;; -END(__hypercall) diff --git a/arch/ia64/xen/hypervisor.c b/arch/ia64/xen/hypervisor.c deleted file mode 100644 index fab62528a80b..000000000000 --- a/arch/ia64/xen/hypervisor.c +++ /dev/null @@ -1,97 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/hypervisor.c - * - * Copyright (c) 2006 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include -#include -#include -#include - -#include "irq_xen.h" - -struct shared_info *HYPERVISOR_shared_info __read_mostly = - (struct shared_info *)XSI_BASE; -EXPORT_SYMBOL(HYPERVISOR_shared_info); - -DEFINE_PER_CPU(struct vcpu_info *, xen_vcpu); - -struct start_info *xen_start_info; -EXPORT_SYMBOL(xen_start_info); - -EXPORT_SYMBOL(xen_domain_type); - -EXPORT_SYMBOL(__hypercall); - -/* Stolen from arch/x86/xen/enlighten.c */ -/* - * Flag to determine whether vcpu info placement is available on all - * VCPUs. We assume it is to start with, and then set it to zero on - * the first failure. This is because it can succeed on some VCPUs - * and not others, since it can involve hypervisor memory allocation, - * or because the guest failed to guarantee all the appropriate - * constraints on all VCPUs (ie buffer can't cross a page boundary). - * - * Note that any particular CPU may be using a placed vcpu structure, - * but we can only optimise if the all are. - * - * 0: not available, 1: available - */ - -static void __init xen_vcpu_setup(int cpu) -{ - /* - * WARNING: - * before changing MAX_VIRT_CPUS, - * check that shared_info fits on a page - */ - BUILD_BUG_ON(sizeof(struct shared_info) > PAGE_SIZE); - per_cpu(xen_vcpu, cpu) = &HYPERVISOR_shared_info->vcpu_info[cpu]; -} - -void __init xen_setup_vcpu_info_placement(void) -{ - int cpu; - - for_each_possible_cpu(cpu) - xen_vcpu_setup(cpu); -} - -void -xen_cpu_init(void) -{ - xen_smp_intr_init(); -} - -/************************************************************************** - * opt feature - */ -void -xen_ia64_enable_opt_feature(void) -{ - /* Enable region 7 identity map optimizations in Xen */ - struct xen_ia64_opt_feature optf; - - optf.cmd = XEN_IA64_OPTF_IDENT_MAP_REG7; - optf.on = XEN_IA64_OPTF_ON; - optf.pgprot = pgprot_val(PAGE_KERNEL); - optf.key = 0; /* No key on linux. */ - HYPERVISOR_opt_feature(&optf); -} diff --git a/arch/ia64/xen/irq_xen.c b/arch/ia64/xen/irq_xen.c deleted file mode 100644 index efb74dafec4d..000000000000 --- a/arch/ia64/xen/irq_xen.c +++ /dev/null @@ -1,443 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/irq_xen.c - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include - -#include -#include -#include - -#include - -#include "irq_xen.h" - -/*************************************************************************** - * pv_irq_ops - * irq operations - */ - -static int -xen_assign_irq_vector(int irq) -{ - struct physdev_irq irq_op; - - irq_op.irq = irq; - if (HYPERVISOR_physdev_op(PHYSDEVOP_alloc_irq_vector, &irq_op)) - return -ENOSPC; - - return irq_op.vector; -} - -static void -xen_free_irq_vector(int vector) -{ - struct physdev_irq irq_op; - - if (vector < IA64_FIRST_DEVICE_VECTOR || - vector > IA64_LAST_DEVICE_VECTOR) - return; - - irq_op.vector = vector; - if (HYPERVISOR_physdev_op(PHYSDEVOP_free_irq_vector, &irq_op)) - printk(KERN_WARNING "%s: xen_free_irq_vector fail vector=%d\n", - __func__, vector); -} - - -static DEFINE_PER_CPU(int, xen_timer_irq) = -1; -static DEFINE_PER_CPU(int, xen_ipi_irq) = -1; -static DEFINE_PER_CPU(int, xen_resched_irq) = -1; -static DEFINE_PER_CPU(int, xen_cmc_irq) = -1; -static DEFINE_PER_CPU(int, xen_cmcp_irq) = -1; -static DEFINE_PER_CPU(int, xen_cpep_irq) = -1; -#define NAME_SIZE 15 -static DEFINE_PER_CPU(char[NAME_SIZE], xen_timer_name); -static DEFINE_PER_CPU(char[NAME_SIZE], xen_ipi_name); -static DEFINE_PER_CPU(char[NAME_SIZE], xen_resched_name); -static DEFINE_PER_CPU(char[NAME_SIZE], xen_cmc_name); -static DEFINE_PER_CPU(char[NAME_SIZE], xen_cmcp_name); -static DEFINE_PER_CPU(char[NAME_SIZE], xen_cpep_name); -#undef NAME_SIZE - -struct saved_irq { - unsigned int irq; - struct irqaction *action; -}; -/* 16 should be far optimistic value, since only several percpu irqs - * are registered early. - */ -#define MAX_LATE_IRQ 16 -static struct saved_irq saved_percpu_irqs[MAX_LATE_IRQ]; -static unsigned short late_irq_cnt; -static unsigned short saved_irq_cnt; -static int xen_slab_ready; - -#ifdef CONFIG_SMP -#include - -/* Dummy stub. Though we may check XEN_RESCHEDULE_VECTOR before __do_IRQ, - * it ends up to issue several memory accesses upon percpu data and - * thus adds unnecessary traffic to other paths. - */ -static irqreturn_t -xen_dummy_handler(int irq, void *dev_id) -{ - return IRQ_HANDLED; -} - -static irqreturn_t -xen_resched_handler(int irq, void *dev_id) -{ - scheduler_ipi(); - return IRQ_HANDLED; -} - -static struct irqaction xen_ipi_irqaction = { - .handler = handle_IPI, - .flags = IRQF_DISABLED, - .name = "IPI" -}; - -static struct irqaction xen_resched_irqaction = { - .handler = xen_resched_handler, - .flags = IRQF_DISABLED, - .name = "resched" -}; - -static struct irqaction xen_tlb_irqaction = { - .handler = xen_dummy_handler, - .flags = IRQF_DISABLED, - .name = "tlb_flush" -}; -#endif - -/* - * This is xen version percpu irq registration, which needs bind - * to xen specific evtchn sub-system. One trick here is that xen - * evtchn binding interface depends on kmalloc because related - * port needs to be freed at device/cpu down. So we cache the - * registration on BSP before slab is ready and then deal them - * at later point. For rest instances happening after slab ready, - * we hook them to xen evtchn immediately. - * - * FIXME: MCA is not supported by far, and thus "nomca" boot param is - * required. - */ -static void -__xen_register_percpu_irq(unsigned int cpu, unsigned int vec, - struct irqaction *action, int save) -{ - int irq = 0; - - if (xen_slab_ready) { - switch (vec) { - case IA64_TIMER_VECTOR: - snprintf(per_cpu(xen_timer_name, cpu), - sizeof(per_cpu(xen_timer_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_virq_to_irqhandler(VIRQ_ITC, cpu, - action->handler, action->flags, - per_cpu(xen_timer_name, cpu), action->dev_id); - per_cpu(xen_timer_irq, cpu) = irq; - break; - case IA64_IPI_RESCHEDULE: - snprintf(per_cpu(xen_resched_name, cpu), - sizeof(per_cpu(xen_resched_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_ipi_to_irqhandler(XEN_RESCHEDULE_VECTOR, cpu, - action->handler, action->flags, - per_cpu(xen_resched_name, cpu), action->dev_id); - per_cpu(xen_resched_irq, cpu) = irq; - break; - case IA64_IPI_VECTOR: - snprintf(per_cpu(xen_ipi_name, cpu), - sizeof(per_cpu(xen_ipi_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_ipi_to_irqhandler(XEN_IPI_VECTOR, cpu, - action->handler, action->flags, - per_cpu(xen_ipi_name, cpu), action->dev_id); - per_cpu(xen_ipi_irq, cpu) = irq; - break; - case IA64_CMC_VECTOR: - snprintf(per_cpu(xen_cmc_name, cpu), - sizeof(per_cpu(xen_cmc_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_virq_to_irqhandler(VIRQ_MCA_CMC, cpu, - action->handler, - action->flags, - per_cpu(xen_cmc_name, cpu), - action->dev_id); - per_cpu(xen_cmc_irq, cpu) = irq; - break; - case IA64_CMCP_VECTOR: - snprintf(per_cpu(xen_cmcp_name, cpu), - sizeof(per_cpu(xen_cmcp_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_ipi_to_irqhandler(XEN_CMCP_VECTOR, cpu, - action->handler, - action->flags, - per_cpu(xen_cmcp_name, cpu), - action->dev_id); - per_cpu(xen_cmcp_irq, cpu) = irq; - break; - case IA64_CPEP_VECTOR: - snprintf(per_cpu(xen_cpep_name, cpu), - sizeof(per_cpu(xen_cpep_name, cpu)), - "%s%d", action->name, cpu); - irq = bind_ipi_to_irqhandler(XEN_CPEP_VECTOR, cpu, - action->handler, - action->flags, - per_cpu(xen_cpep_name, cpu), - action->dev_id); - per_cpu(xen_cpep_irq, cpu) = irq; - break; - case IA64_CPE_VECTOR: - case IA64_MCA_RENDEZ_VECTOR: - case IA64_PERFMON_VECTOR: - case IA64_MCA_WAKEUP_VECTOR: - case IA64_SPURIOUS_INT_VECTOR: - /* No need to complain, these aren't supported. */ - break; - default: - printk(KERN_WARNING "Percpu irq %d is unsupported " - "by xen!\n", vec); - break; - } - BUG_ON(irq < 0); - - if (irq > 0) { - /* - * Mark percpu. Without this, migrate_irqs() will - * mark the interrupt for migrations and trigger it - * on cpu hotplug. - */ - irq_set_status_flags(irq, IRQ_PER_CPU); - } - } - - /* For BSP, we cache registered percpu irqs, and then re-walk - * them when initializing APs - */ - if (!cpu && save) { - BUG_ON(saved_irq_cnt == MAX_LATE_IRQ); - saved_percpu_irqs[saved_irq_cnt].irq = vec; - saved_percpu_irqs[saved_irq_cnt].action = action; - saved_irq_cnt++; - if (!xen_slab_ready) - late_irq_cnt++; - } -} - -static void -xen_register_percpu_irq(ia64_vector vec, struct irqaction *action) -{ - __xen_register_percpu_irq(smp_processor_id(), vec, action, 1); -} - -static void -xen_bind_early_percpu_irq(void) -{ - int i; - - xen_slab_ready = 1; - /* There's no race when accessing this cached array, since only - * BSP will face with such step shortly - */ - for (i = 0; i < late_irq_cnt; i++) - __xen_register_percpu_irq(smp_processor_id(), - saved_percpu_irqs[i].irq, - saved_percpu_irqs[i].action, 0); -} - -/* FIXME: There's no obvious point to check whether slab is ready. So - * a hack is used here by utilizing a late time hook. - */ - -#ifdef CONFIG_HOTPLUG_CPU -static int unbind_evtchn_callback(struct notifier_block *nfb, - unsigned long action, void *hcpu) -{ - unsigned int cpu = (unsigned long)hcpu; - - if (action == CPU_DEAD) { - /* Unregister evtchn. */ - if (per_cpu(xen_cpep_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_cpep_irq, cpu), - NULL); - per_cpu(xen_cpep_irq, cpu) = -1; - } - if (per_cpu(xen_cmcp_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_cmcp_irq, cpu), - NULL); - per_cpu(xen_cmcp_irq, cpu) = -1; - } - if (per_cpu(xen_cmc_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_cmc_irq, cpu), NULL); - per_cpu(xen_cmc_irq, cpu) = -1; - } - if (per_cpu(xen_ipi_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_ipi_irq, cpu), NULL); - per_cpu(xen_ipi_irq, cpu) = -1; - } - if (per_cpu(xen_resched_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_resched_irq, cpu), - NULL); - per_cpu(xen_resched_irq, cpu) = -1; - } - if (per_cpu(xen_timer_irq, cpu) >= 0) { - unbind_from_irqhandler(per_cpu(xen_timer_irq, cpu), - NULL); - per_cpu(xen_timer_irq, cpu) = -1; - } - } - return NOTIFY_OK; -} - -static struct notifier_block unbind_evtchn_notifier = { - .notifier_call = unbind_evtchn_callback, - .priority = 0 -}; -#endif - -void xen_smp_intr_init_early(unsigned int cpu) -{ -#ifdef CONFIG_SMP - unsigned int i; - - for (i = 0; i < saved_irq_cnt; i++) - __xen_register_percpu_irq(cpu, saved_percpu_irqs[i].irq, - saved_percpu_irqs[i].action, 0); -#endif -} - -void xen_smp_intr_init(void) -{ -#ifdef CONFIG_SMP - unsigned int cpu = smp_processor_id(); - struct callback_register event = { - .type = CALLBACKTYPE_event, - .address = { .ip = (unsigned long)&xen_event_callback }, - }; - - if (cpu == 0) { - /* Initialization was already done for boot cpu. */ -#ifdef CONFIG_HOTPLUG_CPU - /* Register the notifier only once. */ - register_cpu_notifier(&unbind_evtchn_notifier); -#endif - return; - } - - /* This should be piggyback when setup vcpu guest context */ - BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event)); -#endif /* CONFIG_SMP */ -} - -void __init -xen_irq_init(void) -{ - struct callback_register event = { - .type = CALLBACKTYPE_event, - .address = { .ip = (unsigned long)&xen_event_callback }, - }; - - xen_init_IRQ(); - BUG_ON(HYPERVISOR_callback_op(CALLBACKOP_register, &event)); - late_time_init = xen_bind_early_percpu_irq; -} - -void -xen_platform_send_ipi(int cpu, int vector, int delivery_mode, int redirect) -{ -#ifdef CONFIG_SMP - /* TODO: we need to call vcpu_up here */ - if (unlikely(vector == ap_wakeup_vector)) { - /* XXX - * This should be in __cpu_up(cpu) in ia64 smpboot.c - * like x86. But don't want to modify it, - * keep it untouched. - */ - xen_smp_intr_init_early(cpu); - - xen_send_ipi(cpu, vector); - /* vcpu_prepare_and_up(cpu); */ - return; - } -#endif - - switch (vector) { - case IA64_IPI_VECTOR: - xen_send_IPI_one(cpu, XEN_IPI_VECTOR); - break; - case IA64_IPI_RESCHEDULE: - xen_send_IPI_one(cpu, XEN_RESCHEDULE_VECTOR); - break; - case IA64_CMCP_VECTOR: - xen_send_IPI_one(cpu, XEN_CMCP_VECTOR); - break; - case IA64_CPEP_VECTOR: - xen_send_IPI_one(cpu, XEN_CPEP_VECTOR); - break; - case IA64_TIMER_VECTOR: { - /* this is used only once by check_sal_cache_flush() - at boot time */ - static int used = 0; - if (!used) { - xen_send_ipi(cpu, IA64_TIMER_VECTOR); - used = 1; - break; - } - /* fallthrough */ - } - default: - printk(KERN_WARNING "Unsupported IPI type 0x%x\n", - vector); - notify_remote_via_irq(0); /* defaults to 0 irq */ - break; - } -} - -static void __init -xen_register_ipi(void) -{ -#ifdef CONFIG_SMP - register_percpu_irq(IA64_IPI_VECTOR, &xen_ipi_irqaction); - register_percpu_irq(IA64_IPI_RESCHEDULE, &xen_resched_irqaction); - register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &xen_tlb_irqaction); -#endif -} - -static void -xen_resend_irq(unsigned int vector) -{ - (void)resend_irq_on_evtchn(vector); -} - -const struct pv_irq_ops xen_irq_ops __initconst = { - .register_ipi = xen_register_ipi, - - .assign_irq_vector = xen_assign_irq_vector, - .free_irq_vector = xen_free_irq_vector, - .register_percpu_irq = xen_register_percpu_irq, - - .resend_irq = xen_resend_irq, -}; diff --git a/arch/ia64/xen/irq_xen.h b/arch/ia64/xen/irq_xen.h deleted file mode 100644 index 1778517b90fe..000000000000 --- a/arch/ia64/xen/irq_xen.h +++ /dev/null @@ -1,34 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/irq_xen.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#ifndef IRQ_XEN_H -#define IRQ_XEN_H - -extern void (*late_time_init)(void); -extern char xen_event_callback; -void __init xen_init_IRQ(void); - -extern const struct pv_irq_ops xen_irq_ops __initconst; -extern void xen_smp_intr_init(void); -extern void xen_send_ipi(int cpu, int vec); - -#endif /* IRQ_XEN_H */ diff --git a/arch/ia64/xen/machvec.c b/arch/ia64/xen/machvec.c deleted file mode 100644 index 4ad588a7c279..000000000000 --- a/arch/ia64/xen/machvec.c +++ /dev/null @@ -1,4 +0,0 @@ -#define MACHVEC_PLATFORM_NAME xen -#define MACHVEC_PLATFORM_HEADER -#include - diff --git a/arch/ia64/xen/suspend.c b/arch/ia64/xen/suspend.c deleted file mode 100644 index 419c8620945a..000000000000 --- a/arch/ia64/xen/suspend.c +++ /dev/null @@ -1,59 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/suspend.c - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * suspend/resume - */ - -#include -#include -#include "time.h" - -void -xen_mm_pin_all(void) -{ - /* nothing */ -} - -void -xen_mm_unpin_all(void) -{ - /* nothing */ -} - -void -xen_arch_pre_suspend() -{ - /* nothing */ -} - -void -xen_arch_post_suspend(int suspend_cancelled) -{ - if (suspend_cancelled) - return; - - xen_ia64_enable_opt_feature(); - /* add more if necessary */ -} - -void xen_arch_resume(void) -{ - xen_timer_resume_on_aps(); -} diff --git a/arch/ia64/xen/time.c b/arch/ia64/xen/time.c deleted file mode 100644 index 1f8244a78bee..000000000000 --- a/arch/ia64/xen/time.c +++ /dev/null @@ -1,257 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/time.c - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include -#include -#include -#include -#include - -#include - -#include - -#include - -#include "../kernel/fsyscall_gtod_data.h" - -static DEFINE_PER_CPU(struct vcpu_runstate_info, xen_runstate); -static DEFINE_PER_CPU(unsigned long, xen_stolen_time); -static DEFINE_PER_CPU(unsigned long, xen_blocked_time); - -/* taken from i386/kernel/time-xen.c */ -static void xen_init_missing_ticks_accounting(int cpu) -{ - struct vcpu_register_runstate_memory_area area; - struct vcpu_runstate_info *runstate = &per_cpu(xen_runstate, cpu); - int rc; - - memset(runstate, 0, sizeof(*runstate)); - - area.addr.v = runstate; - rc = HYPERVISOR_vcpu_op(VCPUOP_register_runstate_memory_area, cpu, - &area); - WARN_ON(rc && rc != -ENOSYS); - - per_cpu(xen_blocked_time, cpu) = runstate->time[RUNSTATE_blocked]; - per_cpu(xen_stolen_time, cpu) = runstate->time[RUNSTATE_runnable] - + runstate->time[RUNSTATE_offline]; -} - -/* - * Runstate accounting - */ -/* stolen from arch/x86/xen/time.c */ -static void get_runstate_snapshot(struct vcpu_runstate_info *res) -{ - u64 state_time; - struct vcpu_runstate_info *state; - - BUG_ON(preemptible()); - - state = &__get_cpu_var(xen_runstate); - - /* - * The runstate info is always updated by the hypervisor on - * the current CPU, so there's no need to use anything - * stronger than a compiler barrier when fetching it. - */ - do { - state_time = state->state_entry_time; - rmb(); - *res = *state; - rmb(); - } while (state->state_entry_time != state_time); -} - -#define NS_PER_TICK (1000000000LL/HZ) - -static unsigned long -consider_steal_time(unsigned long new_itm) -{ - unsigned long stolen, blocked; - unsigned long delta_itm = 0, stolentick = 0; - int cpu = smp_processor_id(); - struct vcpu_runstate_info runstate; - struct task_struct *p = current; - - get_runstate_snapshot(&runstate); - - /* - * Check for vcpu migration effect - * In this case, itc value is reversed. - * This causes huge stolen value. - * This function just checks and reject this effect. - */ - if (!time_after_eq(runstate.time[RUNSTATE_blocked], - per_cpu(xen_blocked_time, cpu))) - blocked = 0; - - if (!time_after_eq(runstate.time[RUNSTATE_runnable] + - runstate.time[RUNSTATE_offline], - per_cpu(xen_stolen_time, cpu))) - stolen = 0; - - if (!time_after(delta_itm + new_itm, ia64_get_itc())) - stolentick = ia64_get_itc() - new_itm; - - do_div(stolentick, NS_PER_TICK); - stolentick++; - - do_div(stolen, NS_PER_TICK); - - if (stolen > stolentick) - stolen = stolentick; - - stolentick -= stolen; - do_div(blocked, NS_PER_TICK); - - if (blocked > stolentick) - blocked = stolentick; - - if (stolen > 0 || blocked > 0) { - account_steal_ticks(stolen); - account_idle_ticks(blocked); - run_local_timers(); - - rcu_check_callbacks(cpu, user_mode(get_irq_regs())); - - scheduler_tick(); - run_posix_cpu_timers(p); - delta_itm += local_cpu_data->itm_delta * (stolen + blocked); - - if (cpu == time_keeper_id) - xtime_update(stolen + blocked); - - local_cpu_data->itm_next = delta_itm + new_itm; - - per_cpu(xen_stolen_time, cpu) += NS_PER_TICK * stolen; - per_cpu(xen_blocked_time, cpu) += NS_PER_TICK * blocked; - } - return delta_itm; -} - -static int xen_do_steal_accounting(unsigned long *new_itm) -{ - unsigned long delta_itm; - delta_itm = consider_steal_time(*new_itm); - *new_itm += delta_itm; - if (time_after(*new_itm, ia64_get_itc()) && delta_itm) - return 1; - - return 0; -} - -static void xen_itc_jitter_data_reset(void) -{ - u64 lcycle, ret; - - do { - lcycle = itc_jitter_data.itc_lastcycle; - ret = cmpxchg(&itc_jitter_data.itc_lastcycle, lcycle, 0); - } while (unlikely(ret != lcycle)); -} - -/* based on xen_sched_clock() in arch/x86/xen/time.c. */ -/* - * This relies on HAVE_UNSTABLE_SCHED_CLOCK. If it can't be defined, - * something similar logic should be implemented here. - */ -/* - * Xen sched_clock implementation. Returns the number of unstolen - * nanoseconds, which is nanoseconds the VCPU spent in RUNNING+BLOCKED - * states. - */ -static unsigned long long xen_sched_clock(void) -{ - struct vcpu_runstate_info runstate; - - unsigned long long now; - unsigned long long offset; - unsigned long long ret; - - /* - * Ideally sched_clock should be called on a per-cpu basis - * anyway, so preempt should already be disabled, but that's - * not current practice at the moment. - */ - preempt_disable(); - - /* - * both ia64_native_sched_clock() and xen's runstate are - * based on mAR.ITC. So difference of them makes sense. - */ - now = ia64_native_sched_clock(); - - get_runstate_snapshot(&runstate); - - WARN_ON(runstate.state != RUNSTATE_running); - - offset = 0; - if (now > runstate.state_entry_time) - offset = now - runstate.state_entry_time; - ret = runstate.time[RUNSTATE_blocked] + - runstate.time[RUNSTATE_running] + - offset; - - preempt_enable(); - - return ret; -} - -struct pv_time_ops xen_time_ops __initdata = { - .init_missing_ticks_accounting = xen_init_missing_ticks_accounting, - .do_steal_accounting = xen_do_steal_accounting, - .clocksource_resume = xen_itc_jitter_data_reset, - .sched_clock = xen_sched_clock, -}; - -/* Called after suspend, to resume time. */ -static void xen_local_tick_resume(void) -{ - /* Just trigger a tick. */ - ia64_cpu_local_tick(); - touch_softlockup_watchdog(); -} - -void -xen_timer_resume(void) -{ - unsigned int cpu; - - xen_local_tick_resume(); - - for_each_online_cpu(cpu) - xen_init_missing_ticks_accounting(cpu); -} - -static void ia64_cpu_local_tick_fn(void *unused) -{ - xen_local_tick_resume(); - xen_init_missing_ticks_accounting(smp_processor_id()); -} - -void -xen_timer_resume_on_aps(void) -{ - smp_call_function(&ia64_cpu_local_tick_fn, NULL, 1); -} diff --git a/arch/ia64/xen/time.h b/arch/ia64/xen/time.h deleted file mode 100644 index f98d7e1a42f0..000000000000 --- a/arch/ia64/xen/time.h +++ /dev/null @@ -1,24 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/time.h - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -extern struct pv_time_ops xen_time_ops __initdata; -void xen_timer_resume_on_aps(void); diff --git a/arch/ia64/xen/xcom_hcall.c b/arch/ia64/xen/xcom_hcall.c deleted file mode 100644 index ccaf7431f7c8..000000000000 --- a/arch/ia64/xen/xcom_hcall.c +++ /dev/null @@ -1,441 +0,0 @@ -/* - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * Tristan Gingold - * - * Copyright (c) 2007 - * Isaku Yamahata - * VA Linux Systems Japan K.K. - * consolidate mini and inline version. - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -/* Xencomm notes: - * This file defines hypercalls to be used by xencomm. The hypercalls simply - * create inlines or mini descriptors for pointers and then call the raw arch - * hypercall xencomm_arch_hypercall_XXX - * - * If the arch wants to directly use these hypercalls, simply define macros - * in asm/xen/hypercall.h, eg: - * #define HYPERVISOR_sched_op xencomm_hypercall_sched_op - * - * The arch may also define HYPERVISOR_xxx as a function and do more operations - * before/after doing the hypercall. - * - * Note: because only inline or mini descriptors are created these functions - * must only be called with in kernel memory parameters. - */ - -int -xencomm_hypercall_console_io(int cmd, int count, char *str) -{ - /* xen early printk uses console io hypercall before - * xencomm initialization. In that case, we just ignore it. - */ - if (!xencomm_is_initialized()) - return 0; - - return xencomm_arch_hypercall_console_io - (cmd, count, xencomm_map_no_alloc(str, count)); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_console_io); - -int -xencomm_hypercall_event_channel_op(int cmd, void *op) -{ - struct xencomm_handle *desc; - desc = xencomm_map_no_alloc(op, sizeof(struct evtchn_op)); - if (desc == NULL) - return -EINVAL; - - return xencomm_arch_hypercall_event_channel_op(cmd, desc); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_event_channel_op); - -int -xencomm_hypercall_xen_version(int cmd, void *arg) -{ - struct xencomm_handle *desc; - unsigned int argsize; - - switch (cmd) { - case XENVER_version: - /* do not actually pass an argument */ - return xencomm_arch_hypercall_xen_version(cmd, 0); - case XENVER_extraversion: - argsize = sizeof(struct xen_extraversion); - break; - case XENVER_compile_info: - argsize = sizeof(struct xen_compile_info); - break; - case XENVER_capabilities: - argsize = sizeof(struct xen_capabilities_info); - break; - case XENVER_changeset: - argsize = sizeof(struct xen_changeset_info); - break; - case XENVER_platform_parameters: - argsize = sizeof(struct xen_platform_parameters); - break; - case XENVER_get_features: - argsize = (arg == NULL) ? 0 : sizeof(struct xen_feature_info); - break; - - default: - printk(KERN_DEBUG - "%s: unknown version op %d\n", __func__, cmd); - return -ENOSYS; - } - - desc = xencomm_map_no_alloc(arg, argsize); - if (desc == NULL) - return -EINVAL; - - return xencomm_arch_hypercall_xen_version(cmd, desc); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_xen_version); - -int -xencomm_hypercall_physdev_op(int cmd, void *op) -{ - unsigned int argsize; - - switch (cmd) { - case PHYSDEVOP_apic_read: - case PHYSDEVOP_apic_write: - argsize = sizeof(struct physdev_apic); - break; - case PHYSDEVOP_alloc_irq_vector: - case PHYSDEVOP_free_irq_vector: - argsize = sizeof(struct physdev_irq); - break; - case PHYSDEVOP_irq_status_query: - argsize = sizeof(struct physdev_irq_status_query); - break; - - default: - printk(KERN_DEBUG - "%s: unknown physdev op %d\n", __func__, cmd); - return -ENOSYS; - } - - return xencomm_arch_hypercall_physdev_op - (cmd, xencomm_map_no_alloc(op, argsize)); -} - -static int -xencommize_grant_table_op(struct xencomm_mini **xc_area, - unsigned int cmd, void *op, unsigned int count, - struct xencomm_handle **desc) -{ - struct xencomm_handle *desc1; - unsigned int argsize; - - switch (cmd) { - case GNTTABOP_map_grant_ref: - argsize = sizeof(struct gnttab_map_grant_ref); - break; - case GNTTABOP_unmap_grant_ref: - argsize = sizeof(struct gnttab_unmap_grant_ref); - break; - case GNTTABOP_setup_table: - { - struct gnttab_setup_table *setup = op; - - argsize = sizeof(*setup); - - if (count != 1) - return -EINVAL; - desc1 = __xencomm_map_no_alloc - (xen_guest_handle(setup->frame_list), - setup->nr_frames * - sizeof(*xen_guest_handle(setup->frame_list)), - *xc_area); - if (desc1 == NULL) - return -EINVAL; - (*xc_area)++; - set_xen_guest_handle(setup->frame_list, (void *)desc1); - break; - } - case GNTTABOP_dump_table: - argsize = sizeof(struct gnttab_dump_table); - break; - case GNTTABOP_transfer: - argsize = sizeof(struct gnttab_transfer); - break; - case GNTTABOP_copy: - argsize = sizeof(struct gnttab_copy); - break; - case GNTTABOP_query_size: - argsize = sizeof(struct gnttab_query_size); - break; - default: - printk(KERN_DEBUG "%s: unknown hypercall grant table op %d\n", - __func__, cmd); - BUG(); - } - - *desc = __xencomm_map_no_alloc(op, count * argsize, *xc_area); - if (*desc == NULL) - return -EINVAL; - (*xc_area)++; - - return 0; -} - -int -xencomm_hypercall_grant_table_op(unsigned int cmd, void *op, - unsigned int count) -{ - int rc; - struct xencomm_handle *desc; - XENCOMM_MINI_ALIGNED(xc_area, 2); - - rc = xencommize_grant_table_op(&xc_area, cmd, op, count, &desc); - if (rc) - return rc; - - return xencomm_arch_hypercall_grant_table_op(cmd, desc, count); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_grant_table_op); - -int -xencomm_hypercall_sched_op(int cmd, void *arg) -{ - struct xencomm_handle *desc; - unsigned int argsize; - - switch (cmd) { - case SCHEDOP_yield: - case SCHEDOP_block: - argsize = 0; - break; - case SCHEDOP_shutdown: - argsize = sizeof(struct sched_shutdown); - break; - case SCHEDOP_poll: - { - struct sched_poll *poll = arg; - struct xencomm_handle *ports; - - argsize = sizeof(struct sched_poll); - ports = xencomm_map_no_alloc(xen_guest_handle(poll->ports), - sizeof(*xen_guest_handle(poll->ports))); - - set_xen_guest_handle(poll->ports, (void *)ports); - break; - } - default: - printk(KERN_DEBUG "%s: unknown sched op %d\n", __func__, cmd); - return -ENOSYS; - } - - desc = xencomm_map_no_alloc(arg, argsize); - if (desc == NULL) - return -EINVAL; - - return xencomm_arch_hypercall_sched_op(cmd, desc); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_sched_op); - -int -xencomm_hypercall_multicall(void *call_list, int nr_calls) -{ - int rc; - int i; - struct multicall_entry *mce; - struct xencomm_handle *desc; - XENCOMM_MINI_ALIGNED(xc_area, nr_calls * 2); - - for (i = 0; i < nr_calls; i++) { - mce = (struct multicall_entry *)call_list + i; - - switch (mce->op) { - case __HYPERVISOR_update_va_mapping: - case __HYPERVISOR_mmu_update: - /* No-op on ia64. */ - break; - case __HYPERVISOR_grant_table_op: - rc = xencommize_grant_table_op - (&xc_area, - mce->args[0], (void *)mce->args[1], - mce->args[2], &desc); - if (rc) - return rc; - mce->args[1] = (unsigned long)desc; - break; - case __HYPERVISOR_memory_op: - default: - printk(KERN_DEBUG - "%s: unhandled multicall op entry op %lu\n", - __func__, mce->op); - return -ENOSYS; - } - } - - desc = xencomm_map_no_alloc(call_list, - nr_calls * sizeof(struct multicall_entry)); - if (desc == NULL) - return -EINVAL; - - return xencomm_arch_hypercall_multicall(desc, nr_calls); -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_multicall); - -int -xencomm_hypercall_callback_op(int cmd, void *arg) -{ - unsigned int argsize; - switch (cmd) { - case CALLBACKOP_register: - argsize = sizeof(struct callback_register); - break; - case CALLBACKOP_unregister: - argsize = sizeof(struct callback_unregister); - break; - default: - printk(KERN_DEBUG - "%s: unknown callback op %d\n", __func__, cmd); - return -ENOSYS; - } - - return xencomm_arch_hypercall_callback_op - (cmd, xencomm_map_no_alloc(arg, argsize)); -} - -static int -xencommize_memory_reservation(struct xencomm_mini *xc_area, - struct xen_memory_reservation *mop) -{ - struct xencomm_handle *desc; - - desc = __xencomm_map_no_alloc(xen_guest_handle(mop->extent_start), - mop->nr_extents * - sizeof(*xen_guest_handle(mop->extent_start)), - xc_area); - if (desc == NULL) - return -EINVAL; - - set_xen_guest_handle(mop->extent_start, (void *)desc); - return 0; -} - -int -xencomm_hypercall_memory_op(unsigned int cmd, void *arg) -{ - GUEST_HANDLE(xen_pfn_t) extent_start_va[2] = { {NULL}, {NULL} }; - struct xen_memory_reservation *xmr = NULL; - int rc; - struct xencomm_handle *desc; - unsigned int argsize; - XENCOMM_MINI_ALIGNED(xc_area, 2); - - switch (cmd) { - case XENMEM_increase_reservation: - case XENMEM_decrease_reservation: - case XENMEM_populate_physmap: - xmr = (struct xen_memory_reservation *)arg; - set_xen_guest_handle(extent_start_va[0], - xen_guest_handle(xmr->extent_start)); - - argsize = sizeof(*xmr); - rc = xencommize_memory_reservation(xc_area, xmr); - if (rc) - return rc; - xc_area++; - break; - - case XENMEM_maximum_ram_page: - argsize = 0; - break; - - case XENMEM_add_to_physmap: - argsize = sizeof(struct xen_add_to_physmap); - break; - - default: - printk(KERN_DEBUG "%s: unknown memory op %d\n", __func__, cmd); - return -ENOSYS; - } - - desc = xencomm_map_no_alloc(arg, argsize); - if (desc == NULL) - return -EINVAL; - - rc = xencomm_arch_hypercall_memory_op(cmd, desc); - - switch (cmd) { - case XENMEM_increase_reservation: - case XENMEM_decrease_reservation: - case XENMEM_populate_physmap: - set_xen_guest_handle(xmr->extent_start, - xen_guest_handle(extent_start_va[0])); - break; - } - - return rc; -} -EXPORT_SYMBOL_GPL(xencomm_hypercall_memory_op); - -int -xencomm_hypercall_suspend(unsigned long srec) -{ - struct sched_shutdown arg; - - arg.reason = SHUTDOWN_suspend; - - return xencomm_arch_hypercall_sched_op( - SCHEDOP_shutdown, xencomm_map_no_alloc(&arg, sizeof(arg))); -} - -long -xencomm_hypercall_vcpu_op(int cmd, int cpu, void *arg) -{ - unsigned int argsize; - switch (cmd) { - case VCPUOP_register_runstate_memory_area: { - struct vcpu_register_runstate_memory_area *area = - (struct vcpu_register_runstate_memory_area *)arg; - argsize = sizeof(*arg); - set_xen_guest_handle(area->addr.h, - (void *)xencomm_map_no_alloc(area->addr.v, - sizeof(area->addr.v))); - break; - } - - default: - printk(KERN_DEBUG "%s: unknown vcpu op %d\n", __func__, cmd); - return -ENOSYS; - } - - return xencomm_arch_hypercall_vcpu_op(cmd, cpu, - xencomm_map_no_alloc(arg, argsize)); -} - -long -xencomm_hypercall_opt_feature(void *arg) -{ - return xencomm_arch_hypercall_opt_feature( - xencomm_map_no_alloc(arg, - sizeof(struct xen_ia64_opt_feature))); -} diff --git a/arch/ia64/xen/xen_pv_ops.c b/arch/ia64/xen/xen_pv_ops.c deleted file mode 100644 index 3e8d350fdf39..000000000000 --- a/arch/ia64/xen/xen_pv_ops.c +++ /dev/null @@ -1,1141 +0,0 @@ -/****************************************************************************** - * arch/ia64/xen/xen_pv_ops.c - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - */ - -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "irq_xen.h" -#include "time.h" - -/*************************************************************************** - * general info - */ -static struct pv_info xen_info __initdata = { - .kernel_rpl = 2, /* or 1: determin at runtime */ - .paravirt_enabled = 1, - .name = "Xen/ia64", -}; - -#define IA64_RSC_PL_SHIFT 2 -#define IA64_RSC_PL_BIT_SIZE 2 -#define IA64_RSC_PL_MASK \ - (((1UL << IA64_RSC_PL_BIT_SIZE) - 1) << IA64_RSC_PL_SHIFT) - -static void __init -xen_info_init(void) -{ - /* Xenified Linux/ia64 may run on pl = 1 or 2. - * determin at run time. */ - unsigned long rsc = ia64_getreg(_IA64_REG_AR_RSC); - unsigned int rpl = (rsc & IA64_RSC_PL_MASK) >> IA64_RSC_PL_SHIFT; - xen_info.kernel_rpl = rpl; -} - -/*************************************************************************** - * pv_init_ops - * initialization hooks. - */ - -static void -xen_panic_hypercall(struct unw_frame_info *info, void *arg) -{ - current->thread.ksp = (__u64)info->sw - 16; - HYPERVISOR_shutdown(SHUTDOWN_crash); - /* we're never actually going to get here... */ -} - -static int -xen_panic_event(struct notifier_block *this, unsigned long event, void *ptr) -{ - unw_init_running(xen_panic_hypercall, NULL); - /* we're never actually going to get here... */ - return NOTIFY_DONE; -} - -static struct notifier_block xen_panic_block = { - xen_panic_event, NULL, 0 /* try to go last */ -}; - -static void xen_pm_power_off(void) -{ - local_irq_disable(); - HYPERVISOR_shutdown(SHUTDOWN_poweroff); -} - -static void __init -xen_banner(void) -{ - printk(KERN_INFO - "Running on Xen! pl = %d start_info_pfn=0x%lx nr_pages=%ld " - "flags=0x%x\n", - xen_info.kernel_rpl, - HYPERVISOR_shared_info->arch.start_info_pfn, - xen_start_info->nr_pages, xen_start_info->flags); -} - -static int __init -xen_reserve_memory(struct rsvd_region *region) -{ - region->start = (unsigned long)__va( - (HYPERVISOR_shared_info->arch.start_info_pfn << PAGE_SHIFT)); - region->end = region->start + PAGE_SIZE; - return 1; -} - -static void __init -xen_arch_setup_early(void) -{ - struct shared_info *s; - BUG_ON(!xen_pv_domain()); - - s = HYPERVISOR_shared_info; - xen_start_info = __va(s->arch.start_info_pfn << PAGE_SHIFT); - - /* Must be done before any hypercall. */ - xencomm_initialize(); - - xen_setup_features(); - /* Register a call for panic conditions. */ - atomic_notifier_chain_register(&panic_notifier_list, - &xen_panic_block); - pm_power_off = xen_pm_power_off; - - xen_ia64_enable_opt_feature(); -} - -static void __init -xen_arch_setup_console(char **cmdline_p) -{ - add_preferred_console("xenboot", 0, NULL); - add_preferred_console("tty", 0, NULL); - /* use hvc_xen */ - add_preferred_console("hvc", 0, NULL); - -#if !defined(CONFIG_VT) || !defined(CONFIG_DUMMY_CONSOLE) - conswitchp = NULL; -#endif -} - -static int __init -xen_arch_setup_nomca(void) -{ - return 1; -} - -static void __init -xen_post_smp_prepare_boot_cpu(void) -{ - xen_setup_vcpu_info_placement(); -} - -#ifdef ASM_SUPPORTED -static unsigned long __init_or_module -xen_patch_bundle(void *sbundle, void *ebundle, unsigned long type); -#endif -static void __init -xen_patch_branch(unsigned long tag, unsigned long type); - -static const struct pv_init_ops xen_init_ops __initconst = { - .banner = xen_banner, - - .reserve_memory = xen_reserve_memory, - - .arch_setup_early = xen_arch_setup_early, - .arch_setup_console = xen_arch_setup_console, - .arch_setup_nomca = xen_arch_setup_nomca, - - .post_smp_prepare_boot_cpu = xen_post_smp_prepare_boot_cpu, -#ifdef ASM_SUPPORTED - .patch_bundle = xen_patch_bundle, -#endif - .patch_branch = xen_patch_branch, -}; - -/*************************************************************************** - * pv_fsys_data - * addresses for fsys - */ - -extern unsigned long xen_fsyscall_table[NR_syscalls]; -extern char xen_fsys_bubble_down[]; -struct pv_fsys_data xen_fsys_data __initdata = { - .fsyscall_table = (unsigned long *)xen_fsyscall_table, - .fsys_bubble_down = (void *)xen_fsys_bubble_down, -}; - -/*************************************************************************** - * pv_patchdata - * patchdata addresses - */ - -#define DECLARE(name) \ - extern unsigned long __xen_start_gate_##name##_patchlist[]; \ - extern unsigned long __xen_end_gate_##name##_patchlist[] - -DECLARE(fsyscall); -DECLARE(brl_fsys_bubble_down); -DECLARE(vtop); -DECLARE(mckinley_e9); - -extern unsigned long __xen_start_gate_section[]; - -#define ASSIGN(name) \ - .start_##name##_patchlist = \ - (unsigned long)__xen_start_gate_##name##_patchlist, \ - .end_##name##_patchlist = \ - (unsigned long)__xen_end_gate_##name##_patchlist - -static struct pv_patchdata xen_patchdata __initdata = { - ASSIGN(fsyscall), - ASSIGN(brl_fsys_bubble_down), - ASSIGN(vtop), - ASSIGN(mckinley_e9), - - .gate_section = (void*)__xen_start_gate_section, -}; - -/*************************************************************************** - * pv_cpu_ops - * intrinsics hooks. - */ - -#ifndef ASM_SUPPORTED -static void -xen_set_itm_with_offset(unsigned long val) -{ - /* ia64_cpu_local_tick() calls this with interrupt enabled. */ - /* WARN_ON(!irqs_disabled()); */ - xen_set_itm(val - XEN_MAPPEDREGS->itc_offset); -} - -static unsigned long -xen_get_itm_with_offset(void) -{ - /* unused at this moment */ - printk(KERN_DEBUG "%s is called.\n", __func__); - - WARN_ON(!irqs_disabled()); - return ia64_native_getreg(_IA64_REG_CR_ITM) + - XEN_MAPPEDREGS->itc_offset; -} - -/* ia64_set_itc() is only called by - * cpu_init() with ia64_set_itc(0) and ia64_sync_itc(). - * So XEN_MAPPEDRESG->itc_offset cal be considered as almost constant. - */ -static void -xen_set_itc(unsigned long val) -{ - unsigned long mitc; - - WARN_ON(!irqs_disabled()); - mitc = ia64_native_getreg(_IA64_REG_AR_ITC); - XEN_MAPPEDREGS->itc_offset = val - mitc; - XEN_MAPPEDREGS->itc_last = val; -} - -static unsigned long -xen_get_itc(void) -{ - unsigned long res; - unsigned long itc_offset; - unsigned long itc_last; - unsigned long ret_itc_last; - - itc_offset = XEN_MAPPEDREGS->itc_offset; - do { - itc_last = XEN_MAPPEDREGS->itc_last; - res = ia64_native_getreg(_IA64_REG_AR_ITC); - res += itc_offset; - if (itc_last >= res) - res = itc_last + 1; - ret_itc_last = cmpxchg(&XEN_MAPPEDREGS->itc_last, - itc_last, res); - } while (unlikely(ret_itc_last != itc_last)); - return res; - -#if 0 - /* ia64_itc_udelay() calls ia64_get_itc() with interrupt enabled. - Should it be paravirtualized instead? */ - WARN_ON(!irqs_disabled()); - itc_offset = XEN_MAPPEDREGS->itc_offset; - itc_last = XEN_MAPPEDREGS->itc_last; - res = ia64_native_getreg(_IA64_REG_AR_ITC); - res += itc_offset; - if (itc_last >= res) - res = itc_last + 1; - XEN_MAPPEDREGS->itc_last = res; - return res; -#endif -} - -static void xen_setreg(int regnum, unsigned long val) -{ - switch (regnum) { - case _IA64_REG_AR_KR0 ... _IA64_REG_AR_KR7: - xen_set_kr(regnum - _IA64_REG_AR_KR0, val); - break; - case _IA64_REG_AR_ITC: - xen_set_itc(val); - break; - case _IA64_REG_CR_TPR: - xen_set_tpr(val); - break; - case _IA64_REG_CR_ITM: - xen_set_itm_with_offset(val); - break; - case _IA64_REG_CR_EOI: - xen_eoi(val); - break; - default: - ia64_native_setreg_func(regnum, val); - break; - } -} - -static unsigned long xen_getreg(int regnum) -{ - unsigned long res; - - switch (regnum) { - case _IA64_REG_PSR: - res = xen_get_psr(); - break; - case _IA64_REG_AR_ITC: - res = xen_get_itc(); - break; - case _IA64_REG_CR_ITM: - res = xen_get_itm_with_offset(); - break; - case _IA64_REG_CR_IVR: - res = xen_get_ivr(); - break; - case _IA64_REG_CR_TPR: - res = xen_get_tpr(); - break; - default: - res = ia64_native_getreg_func(regnum); - break; - } - return res; -} - -/* turning on interrupts is a bit more complicated.. write to the - * memory-mapped virtual psr.i bit first (to avoid race condition), - * then if any interrupts were pending, we have to execute a hyperprivop - * to ensure the pending interrupt gets delivered; else we're done! */ -static void -xen_ssm_i(void) -{ - int old = xen_get_virtual_psr_i(); - xen_set_virtual_psr_i(1); - barrier(); - if (!old && xen_get_virtual_pend()) - xen_hyper_ssm_i(); -} - -/* turning off interrupts can be paravirtualized simply by writing - * to a memory-mapped virtual psr.i bit (implemented as a 16-bit bool) */ -static void -xen_rsm_i(void) -{ - xen_set_virtual_psr_i(0); - barrier(); -} - -static unsigned long -xen_get_psr_i(void) -{ - return xen_get_virtual_psr_i() ? IA64_PSR_I : 0; -} - -static void -xen_intrin_local_irq_restore(unsigned long mask) -{ - if (mask & IA64_PSR_I) - xen_ssm_i(); - else - xen_rsm_i(); -} -#else -#define __DEFINE_FUNC(name, code) \ - extern const char xen_ ## name ## _direct_start[]; \ - extern const char xen_ ## name ## _direct_end[]; \ - asm (".align 32\n" \ - ".proc xen_" #name "\n" \ - "xen_" #name ":\n" \ - "xen_" #name "_direct_start:\n" \ - code \ - "xen_" #name "_direct_end:\n" \ - "br.cond.sptk.many b6\n" \ - ".endp xen_" #name "\n") - -#define DEFINE_VOID_FUNC0(name, code) \ - extern void \ - xen_ ## name (void); \ - __DEFINE_FUNC(name, code) - -#define DEFINE_VOID_FUNC1(name, code) \ - extern void \ - xen_ ## name (unsigned long arg); \ - __DEFINE_FUNC(name, code) - -#define DEFINE_VOID_FUNC1_VOID(name, code) \ - extern void \ - xen_ ## name (void *arg); \ - __DEFINE_FUNC(name, code) - -#define DEFINE_VOID_FUNC2(name, code) \ - extern void \ - xen_ ## name (unsigned long arg0, \ - unsigned long arg1); \ - __DEFINE_FUNC(name, code) - -#define DEFINE_FUNC0(name, code) \ - extern unsigned long \ - xen_ ## name (void); \ - __DEFINE_FUNC(name, code) - -#define DEFINE_FUNC1(name, type, code) \ - extern unsigned long \ - xen_ ## name (type arg); \ - __DEFINE_FUNC(name, code) - -#define XEN_PSR_I_ADDR_ADDR (XSI_BASE + XSI_PSR_I_ADDR_OFS) - -/* - * static void xen_set_itm_with_offset(unsigned long val) - * xen_set_itm(val - XEN_MAPPEDREGS->itc_offset); - */ -/* 2 bundles */ -DEFINE_VOID_FUNC1(set_itm_with_offset, - "mov r2 = " __stringify(XSI_BASE) " + " - __stringify(XSI_ITC_OFFSET_OFS) "\n" - ";;\n" - "ld8 r3 = [r2]\n" - ";;\n" - "sub r8 = r8, r3\n" - "break " __stringify(HYPERPRIVOP_SET_ITM) "\n"); - -/* - * static unsigned long xen_get_itm_with_offset(void) - * return ia64_native_getreg(_IA64_REG_CR_ITM) + XEN_MAPPEDREGS->itc_offset; - */ -/* 2 bundles */ -DEFINE_FUNC0(get_itm_with_offset, - "mov r2 = " __stringify(XSI_BASE) " + " - __stringify(XSI_ITC_OFFSET_OFS) "\n" - ";;\n" - "ld8 r3 = [r2]\n" - "mov r8 = cr.itm\n" - ";;\n" - "add r8 = r8, r2\n"); - -/* - * static void xen_set_itc(unsigned long val) - * unsigned long mitc; - * - * WARN_ON(!irqs_disabled()); - * mitc = ia64_native_getreg(_IA64_REG_AR_ITC); - * XEN_MAPPEDREGS->itc_offset = val - mitc; - * XEN_MAPPEDREGS->itc_last = val; - */ -/* 2 bundles */ -DEFINE_VOID_FUNC1(set_itc, - "mov r2 = " __stringify(XSI_BASE) " + " - __stringify(XSI_ITC_LAST_OFS) "\n" - "mov r3 = ar.itc\n" - ";;\n" - "sub r3 = r8, r3\n" - "st8 [r2] = r8, " - __stringify(XSI_ITC_LAST_OFS) " - " - __stringify(XSI_ITC_OFFSET_OFS) "\n" - ";;\n" - "st8 [r2] = r3\n"); - -/* - * static unsigned long xen_get_itc(void) - * unsigned long res; - * unsigned long itc_offset; - * unsigned long itc_last; - * unsigned long ret_itc_last; - * - * itc_offset = XEN_MAPPEDREGS->itc_offset; - * do { - * itc_last = XEN_MAPPEDREGS->itc_last; - * res = ia64_native_getreg(_IA64_REG_AR_ITC); - * res += itc_offset; - * if (itc_last >= res) - * res = itc_last + 1; - * ret_itc_last = cmpxchg(&XEN_MAPPEDREGS->itc_last, - * itc_last, res); - * } while (unlikely(ret_itc_last != itc_last)); - * return res; - */ -/* 5 bundles */ -DEFINE_FUNC0(get_itc, - "mov r2 = " __stringify(XSI_BASE) " + " - __stringify(XSI_ITC_OFFSET_OFS) "\n" - ";;\n" - "ld8 r9 = [r2], " __stringify(XSI_ITC_LAST_OFS) " - " - __stringify(XSI_ITC_OFFSET_OFS) "\n" - /* r9 = itc_offset */ - /* r2 = XSI_ITC_OFFSET */ - "888:\n" - "mov r8 = ar.itc\n" /* res = ar.itc */ - ";;\n" - "ld8 r3 = [r2]\n" /* r3 = itc_last */ - "add r8 = r8, r9\n" /* res = ar.itc + itc_offset */ - ";;\n" - "cmp.gtu p6, p0 = r3, r8\n" - ";;\n" - "(p6) add r8 = 1, r3\n" /* if (itc_last > res) itc_last + 1 */ - ";;\n" - "mov ar.ccv = r8\n" - ";;\n" - "cmpxchg8.acq r10 = [r2], r8, ar.ccv\n" - ";;\n" - "cmp.ne p6, p0 = r10, r3\n" - "(p6) hint @pause\n" - "(p6) br.cond.spnt 888b\n"); - -DEFINE_VOID_FUNC1_VOID(fc, - "break " __stringify(HYPERPRIVOP_FC) "\n"); - -/* - * psr_i_addr_addr = XEN_PSR_I_ADDR_ADDR - * masked_addr = *psr_i_addr_addr - * pending_intr_addr = masked_addr - 1 - * if (val & IA64_PSR_I) { - * masked = *masked_addr - * *masked_addr = 0:xen_set_virtual_psr_i(1) - * compiler barrier - * if (masked) { - * uint8_t pending = *pending_intr_addr; - * if (pending) - * XEN_HYPER_SSM_I - * } - * } else { - * *masked_addr = 1:xen_set_virtual_psr_i(0) - * } - */ -/* 6 bundles */ -DEFINE_VOID_FUNC1(intrin_local_irq_restore, - /* r8 = input value: 0 or IA64_PSR_I - * p6 = (flags & IA64_PSR_I) - * = if clause - * p7 = !(flags & IA64_PSR_I) - * = else clause - */ - "cmp.ne p6, p7 = r8, r0\n" - "mov r9 = " __stringify(XEN_PSR_I_ADDR_ADDR) "\n" - ";;\n" - /* r9 = XEN_PSR_I_ADDR */ - "ld8 r9 = [r9]\n" - ";;\n" - - /* r10 = masked previous value */ - "(p6) ld1.acq r10 = [r9]\n" - ";;\n" - - /* p8 = !masked interrupt masked previously? */ - "(p6) cmp.ne.unc p8, p0 = r10, r0\n" - - /* p7 = else clause */ - "(p7) mov r11 = 1\n" - ";;\n" - /* masked = 1 */ - "(p7) st1.rel [r9] = r11\n" - - /* p6 = if clause */ - /* masked = 0 - * r9 = masked_addr - 1 - * = pending_intr_addr - */ - "(p8) st1.rel [r9] = r0, -1\n" - ";;\n" - /* r8 = pending_intr */ - "(p8) ld1.acq r11 = [r9]\n" - ";;\n" - /* p9 = interrupt pending? */ - "(p8) cmp.ne.unc p9, p10 = r11, r0\n" - ";;\n" - "(p10) mf\n" - /* issue hypercall to trigger interrupt */ - "(p9) break " __stringify(HYPERPRIVOP_SSM_I) "\n"); - -DEFINE_VOID_FUNC2(ptcga, - "break " __stringify(HYPERPRIVOP_PTC_GA) "\n"); -DEFINE_VOID_FUNC2(set_rr, - "break " __stringify(HYPERPRIVOP_SET_RR) "\n"); - -/* - * tmp = XEN_MAPPEDREGS->interrupt_mask_addr = XEN_PSR_I_ADDR_ADDR; - * tmp = *tmp - * tmp = *tmp; - * psr_i = tmp? 0: IA64_PSR_I; - */ -/* 4 bundles */ -DEFINE_FUNC0(get_psr_i, - "mov r9 = " __stringify(XEN_PSR_I_ADDR_ADDR) "\n" - ";;\n" - "ld8 r9 = [r9]\n" /* r9 = XEN_PSR_I_ADDR */ - "mov r8 = 0\n" /* psr_i = 0 */ - ";;\n" - "ld1.acq r9 = [r9]\n" /* r9 = XEN_PSR_I */ - ";;\n" - "cmp.eq.unc p6, p0 = r9, r0\n" /* p6 = (XEN_PSR_I != 0) */ - ";;\n" - "(p6) mov r8 = " __stringify(1 << IA64_PSR_I_BIT) "\n"); - -DEFINE_FUNC1(thash, unsigned long, - "break " __stringify(HYPERPRIVOP_THASH) "\n"); -DEFINE_FUNC1(get_cpuid, int, - "break " __stringify(HYPERPRIVOP_GET_CPUID) "\n"); -DEFINE_FUNC1(get_pmd, int, - "break " __stringify(HYPERPRIVOP_GET_PMD) "\n"); -DEFINE_FUNC1(get_rr, unsigned long, - "break " __stringify(HYPERPRIVOP_GET_RR) "\n"); - -/* - * void xen_privop_ssm_i(void) - * - * int masked = !xen_get_virtual_psr_i(); - * // masked = *(*XEN_MAPPEDREGS->interrupt_mask_addr) - * xen_set_virtual_psr_i(1) - * // *(*XEN_MAPPEDREGS->interrupt_mask_addr) = 0 - * // compiler barrier - * if (masked) { - * uint8_t* pend_int_addr = - * (uint8_t*)(*XEN_MAPPEDREGS->interrupt_mask_addr) - 1; - * uint8_t pending = *pend_int_addr; - * if (pending) - * XEN_HYPER_SSM_I - * } - */ -/* 4 bundles */ -DEFINE_VOID_FUNC0(ssm_i, - "mov r8 = " __stringify(XEN_PSR_I_ADDR_ADDR) "\n" - ";;\n" - "ld8 r8 = [r8]\n" /* r8 = XEN_PSR_I_ADDR */ - ";;\n" - "ld1.acq r9 = [r8]\n" /* r9 = XEN_PSR_I */ - ";;\n" - "st1.rel [r8] = r0, -1\n" /* psr_i = 0. enable interrupt - * r8 = XEN_PSR_I_ADDR - 1 - * = pend_int_addr - */ - "cmp.eq.unc p0, p6 = r9, r0\n"/* p6 = !XEN_PSR_I - * previously interrupt - * masked? - */ - ";;\n" - "(p6) ld1.acq r8 = [r8]\n" /* r8 = xen_pend_int */ - ";;\n" - "(p6) cmp.eq.unc p6, p7 = r8, r0\n" /*interrupt pending?*/ - ";;\n" - /* issue hypercall to get interrupt */ - "(p7) break " __stringify(HYPERPRIVOP_SSM_I) "\n" - ";;\n"); - -/* - * psr_i_addr_addr = XEN_MAPPEDREGS->interrupt_mask_addr - * = XEN_PSR_I_ADDR_ADDR; - * psr_i_addr = *psr_i_addr_addr; - * *psr_i_addr = 1; - */ -/* 2 bundles */ -DEFINE_VOID_FUNC0(rsm_i, - "mov r8 = " __stringify(XEN_PSR_I_ADDR_ADDR) "\n" - /* r8 = XEN_PSR_I_ADDR */ - "mov r9 = 1\n" - ";;\n" - "ld8 r8 = [r8]\n" /* r8 = XEN_PSR_I */ - ";;\n" - "st1.rel [r8] = r9\n"); /* XEN_PSR_I = 1 */ - -extern void -xen_set_rr0_to_rr4(unsigned long val0, unsigned long val1, - unsigned long val2, unsigned long val3, - unsigned long val4); -__DEFINE_FUNC(set_rr0_to_rr4, - "break " __stringify(HYPERPRIVOP_SET_RR0_TO_RR4) "\n"); - - -extern unsigned long xen_getreg(int regnum); -#define __DEFINE_GET_REG(id, privop) \ - "mov r2 = " __stringify(_IA64_REG_ ## id) "\n" \ - ";;\n" \ - "cmp.eq p6, p0 = r2, r8\n" \ - ";;\n" \ - "(p6) break " __stringify(HYPERPRIVOP_GET_ ## privop) "\n" \ - "(p6) br.cond.sptk.many b6\n" \ - ";;\n" - -__DEFINE_FUNC(getreg, - __DEFINE_GET_REG(PSR, PSR) - - /* get_itc */ - "mov r2 = " __stringify(_IA64_REG_AR_ITC) "\n" - ";;\n" - "cmp.eq p6, p0 = r2, r8\n" - ";;\n" - "(p6) br.cond.spnt xen_get_itc\n" - ";;\n" - - /* get itm */ - "mov r2 = " __stringify(_IA64_REG_CR_ITM) "\n" - ";;\n" - "cmp.eq p6, p0 = r2, r8\n" - ";;\n" - "(p6) br.cond.spnt xen_get_itm_with_offset\n" - ";;\n" - - __DEFINE_GET_REG(CR_IVR, IVR) - __DEFINE_GET_REG(CR_TPR, TPR) - - /* fall back */ - "movl r2 = ia64_native_getreg_func\n" - ";;\n" - "mov b7 = r2\n" - ";;\n" - "br.cond.sptk.many b7\n"); - -extern void xen_setreg(int regnum, unsigned long val); -#define __DEFINE_SET_REG(id, privop) \ - "mov r2 = " __stringify(_IA64_REG_ ## id) "\n" \ - ";;\n" \ - "cmp.eq p6, p0 = r2, r9\n" \ - ";;\n" \ - "(p6) break " __stringify(HYPERPRIVOP_ ## privop) "\n" \ - "(p6) br.cond.sptk.many b6\n" \ - ";;\n" - -__DEFINE_FUNC(setreg, - /* kr0 .. kr 7*/ - /* - * if (_IA64_REG_AR_KR0 <= regnum && - * regnum <= _IA64_REG_AR_KR7) { - * register __index asm ("r8") = regnum - _IA64_REG_AR_KR0 - * register __val asm ("r9") = val - * "break HYPERPRIVOP_SET_KR" - * } - */ - "mov r17 = r9\n" - "mov r2 = " __stringify(_IA64_REG_AR_KR0) "\n" - ";;\n" - "cmp.ge p6, p0 = r9, r2\n" - "sub r17 = r17, r2\n" - ";;\n" - "(p6) cmp.ge.unc p7, p0 = " - __stringify(_IA64_REG_AR_KR7) " - " __stringify(_IA64_REG_AR_KR0) - ", r17\n" - ";;\n" - "(p7) mov r9 = r8\n" - ";;\n" - "(p7) mov r8 = r17\n" - "(p7) break " __stringify(HYPERPRIVOP_SET_KR) "\n" - - /* set itm */ - "mov r2 = " __stringify(_IA64_REG_CR_ITM) "\n" - ";;\n" - "cmp.eq p6, p0 = r2, r8\n" - ";;\n" - "(p6) br.cond.spnt xen_set_itm_with_offset\n" - - /* set itc */ - "mov r2 = " __stringify(_IA64_REG_AR_ITC) "\n" - ";;\n" - "cmp.eq p6, p0 = r2, r8\n" - ";;\n" - "(p6) br.cond.spnt xen_set_itc\n" - - __DEFINE_SET_REG(CR_TPR, SET_TPR) - __DEFINE_SET_REG(CR_EOI, EOI) - - /* fall back */ - "movl r2 = ia64_native_setreg_func\n" - ";;\n" - "mov b7 = r2\n" - ";;\n" - "br.cond.sptk.many b7\n"); -#endif - -static const struct pv_cpu_ops xen_cpu_ops __initconst = { - .fc = xen_fc, - .thash = xen_thash, - .get_cpuid = xen_get_cpuid, - .get_pmd = xen_get_pmd, - .getreg = xen_getreg, - .setreg = xen_setreg, - .ptcga = xen_ptcga, - .get_rr = xen_get_rr, - .set_rr = xen_set_rr, - .set_rr0_to_rr4 = xen_set_rr0_to_rr4, - .ssm_i = xen_ssm_i, - .rsm_i = xen_rsm_i, - .get_psr_i = xen_get_psr_i, - .intrin_local_irq_restore - = xen_intrin_local_irq_restore, -}; - -/****************************************************************************** - * replacement of hand written assembly codes. - */ - -extern char xen_switch_to; -extern char xen_leave_syscall; -extern char xen_work_processed_syscall; -extern char xen_leave_kernel; - -const struct pv_cpu_asm_switch xen_cpu_asm_switch = { - .switch_to = (unsigned long)&xen_switch_to, - .leave_syscall = (unsigned long)&xen_leave_syscall, - .work_processed_syscall = (unsigned long)&xen_work_processed_syscall, - .leave_kernel = (unsigned long)&xen_leave_kernel, -}; - -/*************************************************************************** - * pv_iosapic_ops - * iosapic read/write hooks. - */ -static void -xen_pcat_compat_init(void) -{ - /* nothing */ -} - -static struct irq_chip* -xen_iosapic_get_irq_chip(unsigned long trigger) -{ - return NULL; -} - -static unsigned int -xen_iosapic_read(char __iomem *iosapic, unsigned int reg) -{ - struct physdev_apic apic_op; - int ret; - - apic_op.apic_physbase = (unsigned long)iosapic - - __IA64_UNCACHED_OFFSET; - apic_op.reg = reg; - ret = HYPERVISOR_physdev_op(PHYSDEVOP_apic_read, &apic_op); - if (ret) - return ret; - return apic_op.value; -} - -static void -xen_iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val) -{ - struct physdev_apic apic_op; - - apic_op.apic_physbase = (unsigned long)iosapic - - __IA64_UNCACHED_OFFSET; - apic_op.reg = reg; - apic_op.value = val; - HYPERVISOR_physdev_op(PHYSDEVOP_apic_write, &apic_op); -} - -static struct pv_iosapic_ops xen_iosapic_ops __initdata = { - .pcat_compat_init = xen_pcat_compat_init, - .__get_irq_chip = xen_iosapic_get_irq_chip, - - .__read = xen_iosapic_read, - .__write = xen_iosapic_write, -}; - -/*************************************************************************** - * pv_ops initialization - */ - -void __init -xen_setup_pv_ops(void) -{ - xen_info_init(); - pv_info = xen_info; - pv_init_ops = xen_init_ops; - pv_fsys_data = xen_fsys_data; - pv_patchdata = xen_patchdata; - pv_cpu_ops = xen_cpu_ops; - pv_iosapic_ops = xen_iosapic_ops; - pv_irq_ops = xen_irq_ops; - pv_time_ops = xen_time_ops; - - paravirt_cpu_asm_init(&xen_cpu_asm_switch); -} - -#ifdef ASM_SUPPORTED -/*************************************************************************** - * binary pacthing - * pv_init_ops.patch_bundle - */ - -#define DEFINE_FUNC_GETREG(name, privop) \ - DEFINE_FUNC0(get_ ## name, \ - "break "__stringify(HYPERPRIVOP_GET_ ## privop) "\n") - -DEFINE_FUNC_GETREG(psr, PSR); -DEFINE_FUNC_GETREG(eflag, EFLAG); -DEFINE_FUNC_GETREG(ivr, IVR); -DEFINE_FUNC_GETREG(tpr, TPR); - -#define DEFINE_FUNC_SET_KR(n) \ - DEFINE_VOID_FUNC0(set_kr ## n, \ - ";;\n" \ - "mov r9 = r8\n" \ - "mov r8 = " #n "\n" \ - "break " __stringify(HYPERPRIVOP_SET_KR) "\n") - -DEFINE_FUNC_SET_KR(0); -DEFINE_FUNC_SET_KR(1); -DEFINE_FUNC_SET_KR(2); -DEFINE_FUNC_SET_KR(3); -DEFINE_FUNC_SET_KR(4); -DEFINE_FUNC_SET_KR(5); -DEFINE_FUNC_SET_KR(6); -DEFINE_FUNC_SET_KR(7); - -#define __DEFINE_FUNC_SETREG(name, privop) \ - DEFINE_VOID_FUNC0(name, \ - "break "__stringify(HYPERPRIVOP_ ## privop) "\n") - -#define DEFINE_FUNC_SETREG(name, privop) \ - __DEFINE_FUNC_SETREG(set_ ## name, SET_ ## privop) - -DEFINE_FUNC_SETREG(eflag, EFLAG); -DEFINE_FUNC_SETREG(tpr, TPR); -__DEFINE_FUNC_SETREG(eoi, EOI); - -extern const char xen_check_events[]; -extern const char __xen_intrin_local_irq_restore_direct_start[]; -extern const char __xen_intrin_local_irq_restore_direct_end[]; -extern const unsigned long __xen_intrin_local_irq_restore_direct_reloc; - -asm ( - ".align 32\n" - ".proc xen_check_events\n" - "xen_check_events:\n" - /* masked = 0 - * r9 = masked_addr - 1 - * = pending_intr_addr - */ - "st1.rel [r9] = r0, -1\n" - ";;\n" - /* r8 = pending_intr */ - "ld1.acq r11 = [r9]\n" - ";;\n" - /* p9 = interrupt pending? */ - "cmp.ne p9, p10 = r11, r0\n" - ";;\n" - "(p10) mf\n" - /* issue hypercall to trigger interrupt */ - "(p9) break " __stringify(HYPERPRIVOP_SSM_I) "\n" - "br.cond.sptk.many b6\n" - ".endp xen_check_events\n" - "\n" - ".align 32\n" - ".proc __xen_intrin_local_irq_restore_direct\n" - "__xen_intrin_local_irq_restore_direct:\n" - "__xen_intrin_local_irq_restore_direct_start:\n" - "1:\n" - "{\n" - "cmp.ne p6, p7 = r8, r0\n" - "mov r17 = ip\n" /* get ip to calc return address */ - "mov r9 = "__stringify(XEN_PSR_I_ADDR_ADDR) "\n" - ";;\n" - "}\n" - "{\n" - /* r9 = XEN_PSR_I_ADDR */ - "ld8 r9 = [r9]\n" - ";;\n" - /* r10 = masked previous value */ - "(p6) ld1.acq r10 = [r9]\n" - "adds r17 = 1f - 1b, r17\n" /* calculate return address */ - ";;\n" - "}\n" - "{\n" - /* p8 = !masked interrupt masked previously? */ - "(p6) cmp.ne.unc p8, p0 = r10, r0\n" - "\n" - /* p7 = else clause */ - "(p7) mov r11 = 1\n" - ";;\n" - "(p8) mov b6 = r17\n" /* set return address */ - "}\n" - "{\n" - /* masked = 1 */ - "(p7) st1.rel [r9] = r11\n" - "\n" - "[99:]\n" - "(p8) brl.cond.dptk.few xen_check_events\n" - "}\n" - /* pv calling stub is 5 bundles. fill nop to adjust return address */ - "{\n" - "nop 0\n" - "nop 0\n" - "nop 0\n" - "}\n" - "1:\n" - "__xen_intrin_local_irq_restore_direct_end:\n" - ".endp __xen_intrin_local_irq_restore_direct\n" - "\n" - ".align 8\n" - "__xen_intrin_local_irq_restore_direct_reloc:\n" - "data8 99b\n" -); - -static struct paravirt_patch_bundle_elem xen_patch_bundle_elems[] -__initdata_or_module = -{ -#define XEN_PATCH_BUNDLE_ELEM(name, type) \ - { \ - (void*)xen_ ## name ## _direct_start, \ - (void*)xen_ ## name ## _direct_end, \ - PARAVIRT_PATCH_TYPE_ ## type, \ - } - - XEN_PATCH_BUNDLE_ELEM(fc, FC), - XEN_PATCH_BUNDLE_ELEM(thash, THASH), - XEN_PATCH_BUNDLE_ELEM(get_cpuid, GET_CPUID), - XEN_PATCH_BUNDLE_ELEM(get_pmd, GET_PMD), - XEN_PATCH_BUNDLE_ELEM(ptcga, PTCGA), - XEN_PATCH_BUNDLE_ELEM(get_rr, GET_RR), - XEN_PATCH_BUNDLE_ELEM(set_rr, SET_RR), - XEN_PATCH_BUNDLE_ELEM(set_rr0_to_rr4, SET_RR0_TO_RR4), - XEN_PATCH_BUNDLE_ELEM(ssm_i, SSM_I), - XEN_PATCH_BUNDLE_ELEM(rsm_i, RSM_I), - XEN_PATCH_BUNDLE_ELEM(get_psr_i, GET_PSR_I), - { - (void*)__xen_intrin_local_irq_restore_direct_start, - (void*)__xen_intrin_local_irq_restore_direct_end, - PARAVIRT_PATCH_TYPE_INTRIN_LOCAL_IRQ_RESTORE, - }, - -#define XEN_PATCH_BUNDLE_ELEM_GETREG(name, reg) \ - { \ - xen_get_ ## name ## _direct_start, \ - xen_get_ ## name ## _direct_end, \ - PARAVIRT_PATCH_TYPE_GETREG + _IA64_REG_ ## reg, \ - } - - XEN_PATCH_BUNDLE_ELEM_GETREG(psr, PSR), - XEN_PATCH_BUNDLE_ELEM_GETREG(eflag, AR_EFLAG), - - XEN_PATCH_BUNDLE_ELEM_GETREG(ivr, CR_IVR), - XEN_PATCH_BUNDLE_ELEM_GETREG(tpr, CR_TPR), - - XEN_PATCH_BUNDLE_ELEM_GETREG(itc, AR_ITC), - XEN_PATCH_BUNDLE_ELEM_GETREG(itm_with_offset, CR_ITM), - - -#define __XEN_PATCH_BUNDLE_ELEM_SETREG(name, reg) \ - { \ - xen_ ## name ## _direct_start, \ - xen_ ## name ## _direct_end, \ - PARAVIRT_PATCH_TYPE_SETREG + _IA64_REG_ ## reg, \ - } - -#define XEN_PATCH_BUNDLE_ELEM_SETREG(name, reg) \ - __XEN_PATCH_BUNDLE_ELEM_SETREG(set_ ## name, reg) - - XEN_PATCH_BUNDLE_ELEM_SETREG(kr0, AR_KR0), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr1, AR_KR1), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr2, AR_KR2), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr3, AR_KR3), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr4, AR_KR4), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr5, AR_KR5), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr6, AR_KR6), - XEN_PATCH_BUNDLE_ELEM_SETREG(kr7, AR_KR7), - - XEN_PATCH_BUNDLE_ELEM_SETREG(eflag, AR_EFLAG), - XEN_PATCH_BUNDLE_ELEM_SETREG(tpr, CR_TPR), - __XEN_PATCH_BUNDLE_ELEM_SETREG(eoi, CR_EOI), - - XEN_PATCH_BUNDLE_ELEM_SETREG(itc, AR_ITC), - XEN_PATCH_BUNDLE_ELEM_SETREG(itm_with_offset, CR_ITM), -}; - -static unsigned long __init_or_module -xen_patch_bundle(void *sbundle, void *ebundle, unsigned long type) -{ - const unsigned long nelems = sizeof(xen_patch_bundle_elems) / - sizeof(xen_patch_bundle_elems[0]); - unsigned long used; - const struct paravirt_patch_bundle_elem *found; - - used = __paravirt_patch_apply_bundle(sbundle, ebundle, type, - xen_patch_bundle_elems, nelems, - &found); - - if (found == NULL) - /* fallback */ - return ia64_native_patch_bundle(sbundle, ebundle, type); - if (used == 0) - return used; - - /* relocation */ - switch (type) { - case PARAVIRT_PATCH_TYPE_INTRIN_LOCAL_IRQ_RESTORE: { - unsigned long reloc = - __xen_intrin_local_irq_restore_direct_reloc; - unsigned long reloc_offset = reloc - (unsigned long) - __xen_intrin_local_irq_restore_direct_start; - unsigned long tag = (unsigned long)sbundle + reloc_offset; - paravirt_patch_reloc_brl(tag, xen_check_events); - break; - } - default: - /* nothing */ - break; - } - return used; -} -#endif /* ASM_SUPPOTED */ - -const struct paravirt_patch_branch_target xen_branch_target[] -__initconst = { -#define PARAVIRT_BR_TARGET(name, type) \ - { \ - &xen_ ## name, \ - PARAVIRT_PATCH_TYPE_BR_ ## type, \ - } - PARAVIRT_BR_TARGET(switch_to, SWITCH_TO), - PARAVIRT_BR_TARGET(leave_syscall, LEAVE_SYSCALL), - PARAVIRT_BR_TARGET(work_processed_syscall, WORK_PROCESSED_SYSCALL), - PARAVIRT_BR_TARGET(leave_kernel, LEAVE_KERNEL), -}; - -static void __init -xen_patch_branch(unsigned long tag, unsigned long type) -{ - __paravirt_patch_apply_branch(tag, type, xen_branch_target, - ARRAY_SIZE(xen_branch_target)); -} diff --git a/arch/ia64/xen/xencomm.c b/arch/ia64/xen/xencomm.c deleted file mode 100644 index 73d903ca2d64..000000000000 --- a/arch/ia64/xen/xencomm.c +++ /dev/null @@ -1,106 +0,0 @@ -/* - * Copyright (C) 2006 Hollis Blanchard , IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include -#include - -static unsigned long kernel_virtual_offset; -static int is_xencomm_initialized; - -/* for xen early printk. It uses console io hypercall which uses xencomm. - * However early printk may use it before xencomm initialization. - */ -int -xencomm_is_initialized(void) -{ - return is_xencomm_initialized; -} - -void -xencomm_initialize(void) -{ - kernel_virtual_offset = KERNEL_START - ia64_tpa(KERNEL_START); - is_xencomm_initialized = 1; -} - -/* Translate virtual address to physical address. */ -unsigned long -xencomm_vtop(unsigned long vaddr) -{ - struct page *page; - struct vm_area_struct *vma; - - if (vaddr == 0) - return 0UL; - - if (REGION_NUMBER(vaddr) == 5) { - pgd_t *pgd; - pud_t *pud; - pmd_t *pmd; - pte_t *ptep; - - /* On ia64, TASK_SIZE refers to current. It is not initialized - during boot. - Furthermore the kernel is relocatable and __pa() doesn't - work on addresses. */ - if (vaddr >= KERNEL_START - && vaddr < (KERNEL_START + KERNEL_TR_PAGE_SIZE)) - return vaddr - kernel_virtual_offset; - - /* In kernel area -- virtually mapped. */ - pgd = pgd_offset_k(vaddr); - if (pgd_none(*pgd) || pgd_bad(*pgd)) - return ~0UL; - - pud = pud_offset(pgd, vaddr); - if (pud_none(*pud) || pud_bad(*pud)) - return ~0UL; - - pmd = pmd_offset(pud, vaddr); - if (pmd_none(*pmd) || pmd_bad(*pmd)) - return ~0UL; - - ptep = pte_offset_kernel(pmd, vaddr); - if (!ptep) - return ~0UL; - - return (pte_val(*ptep) & _PFN_MASK) | (vaddr & ~PAGE_MASK); - } - - if (vaddr > TASK_SIZE) { - /* percpu variables */ - if (REGION_NUMBER(vaddr) == 7 && - REGION_OFFSET(vaddr) >= (1ULL << IA64_MAX_PHYS_BITS)) - ia64_tpa(vaddr); - - /* kernel address */ - return __pa(vaddr); - } - - /* XXX double-check (lack of) locking */ - vma = find_extend_vma(current->mm, vaddr); - if (!vma) - return ~0UL; - - /* We assume the page is modified. */ - page = follow_page(vma, vaddr, FOLL_WRITE | FOLL_TOUCH); - if (IS_ERR_OR_NULL(page)) - return ~0UL; - - return (page_to_pfn(page) << PAGE_SHIFT) | (vaddr & ~PAGE_MASK); -} diff --git a/arch/ia64/xen/xenivt.S b/arch/ia64/xen/xenivt.S deleted file mode 100644 index 3e71d50584d9..000000000000 --- a/arch/ia64/xen/xenivt.S +++ /dev/null @@ -1,52 +0,0 @@ -/* - * arch/ia64/xen/ivt.S - * - * Copyright (C) 2005 Hewlett-Packard Co - * Dan Magenheimer - * - * Copyright (c) 2008 Isaku Yamahata - * VA Linux Systems Japan K.K. - * pv_ops. - */ - -#include -#include -#include - -#include "../kernel/minstate.h" - - .section .text,"ax" -GLOBAL_ENTRY(xen_event_callback) - mov r31=pr // prepare to save predicates - ;; - SAVE_MIN_WITH_COVER // uses r31; defines r2 and r3 - ;; - movl r3=XSI_PSR_IC - mov r14=1 - ;; - st4 [r3]=r14 - ;; - adds r3=8,r2 // set up second base pointer for SAVE_REST - srlz.i // ensure everybody knows psr.ic is back on - ;; - SAVE_REST - ;; -1: - alloc r14=ar.pfs,0,0,1,0 // must be first in an insn group - add out0=16,sp // pass pointer to pt_regs as first arg - ;; - br.call.sptk.many b0=xen_evtchn_do_upcall - ;; - movl r20=XSI_PSR_I_ADDR - ;; - ld8 r20=[r20] - ;; - adds r20=-1,r20 // vcpu_info->evtchn_upcall_pending - ;; - ld1 r20=[r20] - ;; - cmp.ne p6,p0=r20,r0 // if there are pending events, - (p6) br.spnt.few 1b // call evtchn_do_upcall again. - br.sptk.many xen_leave_kernel // we know ia64_leave_kernel is - // paravirtualized as xen_leave_kernel -END(xen_event_callback) diff --git a/arch/ia64/xen/xensetup.S b/arch/ia64/xen/xensetup.S deleted file mode 100644 index e29519ebe2d2..000000000000 --- a/arch/ia64/xen/xensetup.S +++ /dev/null @@ -1,80 +0,0 @@ -/* - * Support routines for Xen - * - * Copyright (C) 2005 Dan Magenheimer - */ - -#include -#include -#include -#include -#include -#include -#include -#include - - .section .data..read_mostly - .align 8 - .global xen_domain_type -xen_domain_type: - data4 XEN_NATIVE_ASM - .previous - - __INIT -ENTRY(startup_xen) - // Calculate load offset. - // The constant, LOAD_OFFSET, can't be used because the boot - // loader doesn't always load to the LMA specified by the vmlinux.lds. - mov r9=ip // must be the first instruction to make sure - // that r9 = the physical address of startup_xen. - // Usually r9 = startup_xen - LOAD_OFFSET - movl r8=startup_xen - ;; - sub r9=r9,r8 // Usually r9 = -LOAD_OFFSET. - - mov r10=PARAVIRT_HYPERVISOR_TYPE_XEN - movl r11=_start - ;; - add r11=r11,r9 - movl r8=hypervisor_type - ;; - add r8=r8,r9 - mov b0=r11 - ;; - st8 [r8]=r10 - br.cond.sptk.many b0 - ;; -END(startup_xen) - - ELFNOTE(Xen, XEN_ELFNOTE_GUEST_OS, .asciz "linux") - ELFNOTE(Xen, XEN_ELFNOTE_GUEST_VERSION, .asciz "2.6") - ELFNOTE(Xen, XEN_ELFNOTE_XEN_VERSION, .asciz "xen-3.0") - ELFNOTE(Xen, XEN_ELFNOTE_ENTRY, data8.ua startup_xen - LOAD_OFFSET) - -#define isBP p3 // are we the Bootstrap Processor? - -GLOBAL_ENTRY(xen_setup_hook) - mov r8=XEN_PV_DOMAIN_ASM -(isBP) movl r9=xen_domain_type;; -(isBP) st4 [r9]=r8 - movl r10=xen_ivt;; - - mov cr.iva=r10 - - /* Set xsi base. */ -#define FW_HYPERCALL_SET_SHARED_INFO_VA 0x600 -(isBP) mov r2=FW_HYPERCALL_SET_SHARED_INFO_VA -(isBP) movl r28=XSI_BASE;; -(isBP) break 0x1000;; - - /* setup pv_ops */ -(isBP) mov r4=rp - ;; -(isBP) br.call.sptk.many rp=xen_setup_pv_ops - ;; -(isBP) mov rp=r4 - ;; - - br.ret.sptk.many rp - ;; -END(xen_setup_hook) diff --git a/include/xen/interface/callback.h b/include/xen/interface/callback.h index 8c5fa0e20155..dc3193f4b581 100644 --- a/include/xen/interface/callback.h +++ b/include/xen/interface/callback.h @@ -36,7 +36,7 @@ * @extra_args == Operation-specific extra arguments (NULL if none). */ -/* ia64, x86: Callback for event delivery. */ +/* x86: Callback for event delivery. */ #define CALLBACKTYPE_event 0 /* x86: Failsafe callback when guest state cannot be restored by Xen. */ diff --git a/include/xen/interface/io/protocols.h b/include/xen/interface/io/protocols.h index 056744b4b05e..545a14ba0bb3 100644 --- a/include/xen/interface/io/protocols.h +++ b/include/xen/interface/io/protocols.h @@ -3,7 +3,6 @@ #define XEN_IO_PROTO_ABI_X86_32 "x86_32-abi" #define XEN_IO_PROTO_ABI_X86_64 "x86_64-abi" -#define XEN_IO_PROTO_ABI_IA64 "ia64-abi" #define XEN_IO_PROTO_ABI_POWERPC64 "powerpc64-abi" #define XEN_IO_PROTO_ABI_ARM "arm-abi" @@ -11,8 +10,6 @@ # define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_32 #elif defined(__x86_64__) # define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_X86_64 -#elif defined(__ia64__) -# define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_IA64 #elif defined(__powerpc64__) # define XEN_IO_PROTO_ABI_NATIVE XEN_IO_PROTO_ABI_POWERPC64 #elif defined(__arm__) || defined(__aarch64__) -- cgit v1.2.3 From c08ac06ab3f3cdb8d34376c3a8a5e46a31a62c8f Mon Sep 17 00:00:00 2001 From: Takuya Yoshikawa Date: Fri, 13 Dec 2013 15:07:21 +0900 Subject: KVM: Use cond_resched() directly and remove useless kvm_resched() Since the commit 15ad7146 ("KVM: Use the scheduler preemption notifiers to make kvm preemptible"), the remaining stuff in this function is a simple cond_resched() call with an extra need_resched() check which was there to avoid dropping VCPUs unnecessarily. Now it is meaningless. Signed-off-by: Takuya Yoshikawa Signed-off-by: Paolo Bonzini --- arch/ia64/kvm/kvm-ia64.c | 2 +- arch/powerpc/kvm/book3s_hv.c | 2 +- arch/x86/kvm/x86.c | 2 +- include/linux/kvm_host.h | 1 - virt/kvm/kvm_main.c | 8 -------- 5 files changed, 3 insertions(+), 12 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c index 985bf80c622e..53f44bee9ebb 100644 --- a/arch/ia64/kvm/kvm-ia64.c +++ b/arch/ia64/kvm/kvm-ia64.c @@ -702,7 +702,7 @@ again: out: srcu_read_unlock(&vcpu->kvm->srcu, idx); if (r > 0) { - kvm_resched(vcpu); + cond_resched(); idx = srcu_read_lock(&vcpu->kvm->srcu); goto again; } diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 072287f1c3bc..3fa99b20894f 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -1348,7 +1348,7 @@ static void kvmppc_run_core(struct kvmppc_vcore *vc) kvm_guest_exit(); preempt_enable(); - kvm_resched(vcpu); + cond_resched(); spin_lock(&vc->lock); now = get_tb(); diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 21ef1ba184ae..4fb1ee619c1c 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6125,7 +6125,7 @@ static int __vcpu_run(struct kvm_vcpu *vcpu) } if (need_resched()) { srcu_read_unlock(&kvm->srcu, vcpu->srcu_idx); - kvm_resched(vcpu); + cond_resched(); vcpu->srcu_idx = srcu_read_lock(&kvm->srcu); } } diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 9523d2ad7535..4ecf10775c4f 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -583,7 +583,6 @@ void kvm_vcpu_block(struct kvm_vcpu *vcpu); void kvm_vcpu_kick(struct kvm_vcpu *vcpu); bool kvm_vcpu_yield_to(struct kvm_vcpu *target); void kvm_vcpu_on_spin(struct kvm_vcpu *vcpu); -void kvm_resched(struct kvm_vcpu *vcpu); void kvm_load_guest_fpu(struct kvm_vcpu *vcpu); void kvm_put_guest_fpu(struct kvm_vcpu *vcpu); diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index a0aa84b5941a..03c97e7ae4ca 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1710,14 +1710,6 @@ void kvm_vcpu_kick(struct kvm_vcpu *vcpu) EXPORT_SYMBOL_GPL(kvm_vcpu_kick); #endif /* !CONFIG_S390 */ -void kvm_resched(struct kvm_vcpu *vcpu) -{ - if (!need_resched()) - return; - cond_resched(); -} -EXPORT_SYMBOL_GPL(kvm_resched); - bool kvm_vcpu_yield_to(struct kvm_vcpu *target) { struct pid *pid; -- cgit v1.2.3 From e3fec2f74f7f90d2149a24243a4d040caabe6f30 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Tue, 17 Dec 2013 21:26:19 -0500 Subject: lib: Add missing arch generic-y entries for asm-generic/hash.h Reported-by: Stephen Rothwell Signed-off-by: David S. Miller --- arch/alpha/include/asm/Kbuild | 1 + arch/arc/include/asm/Kbuild | 1 + arch/arm/include/asm/Kbuild | 1 + arch/arm64/include/asm/Kbuild | 1 + arch/avr32/include/asm/Kbuild | 1 + arch/blackfin/include/asm/Kbuild | 1 + arch/c6x/include/asm/Kbuild | 1 + arch/cris/include/asm/Kbuild | 1 + arch/frv/include/asm/Kbuild | 1 + arch/hexagon/include/asm/Kbuild | 1 + arch/ia64/include/asm/Kbuild | 3 ++- arch/m32r/include/asm/Kbuild | 1 + arch/m68k/include/asm/Kbuild | 1 + arch/metag/include/asm/Kbuild | 1 + arch/microblaze/include/asm/Kbuild | 1 + arch/mips/include/asm/Kbuild | 1 + arch/mn10300/include/asm/Kbuild | 1 + arch/openrisc/include/asm/Kbuild | 1 + arch/parisc/include/asm/Kbuild | 1 + arch/powerpc/include/asm/Kbuild | 3 ++- arch/s390/include/asm/Kbuild | 1 + arch/score/include/asm/Kbuild | 2 ++ arch/sh/include/asm/Kbuild | 1 + arch/sparc/include/asm/Kbuild | 1 + arch/tile/include/asm/Kbuild | 1 + arch/um/include/asm/Kbuild | 1 + arch/unicore32/include/asm/Kbuild | 1 + arch/xtensa/include/asm/Kbuild | 1 + 28 files changed, 31 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/alpha/include/asm/Kbuild b/arch/alpha/include/asm/Kbuild index f01fb505ad52..a73a8e208a4a 100644 --- a/arch/alpha/include/asm/Kbuild +++ b/arch/alpha/include/asm/Kbuild @@ -4,3 +4,4 @@ generic-y += clkdev.h generic-y += exec.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/arc/include/asm/Kbuild b/arch/arc/include/asm/Kbuild index 5943f7f9d325..93e6ca919620 100644 --- a/arch/arc/include/asm/Kbuild +++ b/arch/arc/include/asm/Kbuild @@ -47,3 +47,4 @@ generic-y += user.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/arm/include/asm/Kbuild b/arch/arm/include/asm/Kbuild index c38b58c80202..3278afe2c3ab 100644 --- a/arch/arm/include/asm/Kbuild +++ b/arch/arm/include/asm/Kbuild @@ -34,3 +34,4 @@ generic-y += timex.h generic-y += trace_clock.h generic-y += unaligned.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/arm64/include/asm/Kbuild b/arch/arm64/include/asm/Kbuild index 519f89f5b6a3..626d4a92521f 100644 --- a/arch/arm64/include/asm/Kbuild +++ b/arch/arm64/include/asm/Kbuild @@ -51,3 +51,4 @@ generic-y += user.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/avr32/include/asm/Kbuild b/arch/avr32/include/asm/Kbuild index 658001b52400..cfb9fe1b8df9 100644 --- a/arch/avr32/include/asm/Kbuild +++ b/arch/avr32/include/asm/Kbuild @@ -18,3 +18,4 @@ generic-y += sections.h generic-y += topology.h generic-y += trace_clock.h generic-y += xor.h +generic-y += hash.h diff --git a/arch/blackfin/include/asm/Kbuild b/arch/blackfin/include/asm/Kbuild index f2b43474b0e2..359d36fdc247 100644 --- a/arch/blackfin/include/asm/Kbuild +++ b/arch/blackfin/include/asm/Kbuild @@ -45,3 +45,4 @@ generic-y += unaligned.h generic-y += user.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild index fc0b3c356027..d73bb85ccdd3 100644 --- a/arch/c6x/include/asm/Kbuild +++ b/arch/c6x/include/asm/Kbuild @@ -57,3 +57,4 @@ generic-y += user.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/cris/include/asm/Kbuild b/arch/cris/include/asm/Kbuild index b06caf649a95..c5963b3e4624 100644 --- a/arch/cris/include/asm/Kbuild +++ b/arch/cris/include/asm/Kbuild @@ -12,3 +12,4 @@ generic-y += trace_clock.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/frv/include/asm/Kbuild b/arch/frv/include/asm/Kbuild index 74742dc6a3da..bc42f14c9c2e 100644 --- a/arch/frv/include/asm/Kbuild +++ b/arch/frv/include/asm/Kbuild @@ -3,3 +3,4 @@ generic-y += clkdev.h generic-y += exec.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/hexagon/include/asm/Kbuild b/arch/hexagon/include/asm/Kbuild index 67c3450309b7..469d223950ff 100644 --- a/arch/hexagon/include/asm/Kbuild +++ b/arch/hexagon/include/asm/Kbuild @@ -54,3 +54,4 @@ generic-y += ucontext.h generic-y += unaligned.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild index f93ee087e8fe..283a83154b5e 100644 --- a/arch/ia64/include/asm/Kbuild +++ b/arch/ia64/include/asm/Kbuild @@ -4,4 +4,5 @@ generic-y += exec.h generic-y += kvm_para.h generic-y += trace_clock.h generic-y += preempt.h -generic-y += vtime.h \ No newline at end of file +generic-y += vtime.h +generic-y += hash.h diff --git a/arch/m32r/include/asm/Kbuild b/arch/m32r/include/asm/Kbuild index 2b58c5f0bc38..932435ac4e5c 100644 --- a/arch/m32r/include/asm/Kbuild +++ b/arch/m32r/include/asm/Kbuild @@ -4,3 +4,4 @@ generic-y += exec.h generic-y += module.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index a5d27f272a59..7cc8c364924d 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -32,3 +32,4 @@ generic-y += types.h generic-y += word-at-a-time.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/metag/include/asm/Kbuild b/arch/metag/include/asm/Kbuild index 84d0c1d6b9b3..b716d807c2ec 100644 --- a/arch/metag/include/asm/Kbuild +++ b/arch/metag/include/asm/Kbuild @@ -53,3 +53,4 @@ generic-y += user.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild index ce0bbf8f5640..43eec338ff50 100644 --- a/arch/microblaze/include/asm/Kbuild +++ b/arch/microblaze/include/asm/Kbuild @@ -4,3 +4,4 @@ generic-y += exec.h generic-y += trace_clock.h generic-y += syscalls.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/mips/include/asm/Kbuild b/arch/mips/include/asm/Kbuild index 1acbb8b77a71..2d7f65052c1f 100644 --- a/arch/mips/include/asm/Kbuild +++ b/arch/mips/include/asm/Kbuild @@ -14,3 +14,4 @@ generic-y += trace_clock.h generic-y += preempt.h generic-y += ucontext.h generic-y += xor.h +generic-y += hash.h diff --git a/arch/mn10300/include/asm/Kbuild b/arch/mn10300/include/asm/Kbuild index 74742dc6a3da..bc42f14c9c2e 100644 --- a/arch/mn10300/include/asm/Kbuild +++ b/arch/mn10300/include/asm/Kbuild @@ -3,3 +3,4 @@ generic-y += clkdev.h generic-y += exec.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/openrisc/include/asm/Kbuild b/arch/openrisc/include/asm/Kbuild index da1951a22907..2e40f1ca8667 100644 --- a/arch/openrisc/include/asm/Kbuild +++ b/arch/openrisc/include/asm/Kbuild @@ -69,3 +69,4 @@ generic-y += vga.h generic-y += word-at-a-time.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/parisc/include/asm/Kbuild b/arch/parisc/include/asm/Kbuild index a603b9ebe54c..75edd5fcc6ff 100644 --- a/arch/parisc/include/asm/Kbuild +++ b/arch/parisc/include/asm/Kbuild @@ -5,3 +5,4 @@ generic-y += word-at-a-time.h auxvec.h user.h cputime.h emergency-restart.h \ poll.h xor.h clkdev.h exec.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/powerpc/include/asm/Kbuild b/arch/powerpc/include/asm/Kbuild index d8f9d2f18a23..6c0a955a1b06 100644 --- a/arch/powerpc/include/asm/Kbuild +++ b/arch/powerpc/include/asm/Kbuild @@ -3,4 +3,5 @@ generic-y += clkdev.h generic-y += rwsem.h generic-y += trace_clock.h generic-y += preempt.h -generic-y += vtime.h \ No newline at end of file +generic-y += vtime.h +generic-y += hash.h diff --git a/arch/s390/include/asm/Kbuild b/arch/s390/include/asm/Kbuild index 7a5288f3479a..8386a4a1f19a 100644 --- a/arch/s390/include/asm/Kbuild +++ b/arch/s390/include/asm/Kbuild @@ -3,3 +3,4 @@ generic-y += clkdev.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/score/include/asm/Kbuild b/arch/score/include/asm/Kbuild index f3414ade77a3..099e7ba40599 100644 --- a/arch/score/include/asm/Kbuild +++ b/arch/score/include/asm/Kbuild @@ -5,3 +5,5 @@ generic-y += clkdev.h generic-y += trace_clock.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h + diff --git a/arch/sh/include/asm/Kbuild b/arch/sh/include/asm/Kbuild index 231efbb68108..0cd7198a4524 100644 --- a/arch/sh/include/asm/Kbuild +++ b/arch/sh/include/asm/Kbuild @@ -35,3 +35,4 @@ generic-y += trace_clock.h generic-y += ucontext.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/sparc/include/asm/Kbuild b/arch/sparc/include/asm/Kbuild index bf390667657a..4b60a0c325ec 100644 --- a/arch/sparc/include/asm/Kbuild +++ b/arch/sparc/include/asm/Kbuild @@ -17,3 +17,4 @@ generic-y += trace_clock.h generic-y += types.h generic-y += word-at-a-time.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/tile/include/asm/Kbuild b/arch/tile/include/asm/Kbuild index 22f3bd147fa7..3793c75e45d9 100644 --- a/arch/tile/include/asm/Kbuild +++ b/arch/tile/include/asm/Kbuild @@ -39,3 +39,4 @@ generic-y += trace_clock.h generic-y += types.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/um/include/asm/Kbuild b/arch/um/include/asm/Kbuild index fdde187e6087..75de4abe4f94 100644 --- a/arch/um/include/asm/Kbuild +++ b/arch/um/include/asm/Kbuild @@ -4,3 +4,4 @@ generic-y += ftrace.h pci.h io.h param.h delay.h mutex.h current.h exec.h generic-y += switch_to.h clkdev.h generic-y += trace_clock.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/unicore32/include/asm/Kbuild b/arch/unicore32/include/asm/Kbuild index 00045cbe5c63..3ef4f9d9bf5d 100644 --- a/arch/unicore32/include/asm/Kbuild +++ b/arch/unicore32/include/asm/Kbuild @@ -61,3 +61,4 @@ generic-y += user.h generic-y += vga.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h diff --git a/arch/xtensa/include/asm/Kbuild b/arch/xtensa/include/asm/Kbuild index 228d6aee3a16..d7efa1502101 100644 --- a/arch/xtensa/include/asm/Kbuild +++ b/arch/xtensa/include/asm/Kbuild @@ -29,3 +29,4 @@ generic-y += topology.h generic-y += trace_clock.h generic-y += xor.h generic-y += preempt.h +generic-y += hash.h -- cgit v1.2.3 From bbc4e596985fb589388338b85f60da256b8bc27b Mon Sep 17 00:00:00 2001 From: Mark Salter Date: Wed, 1 Jan 2014 11:31:12 -0800 Subject: Input: i8042 - select ARCH_MIGHT_HAVE_PC_SERIO on IA64 Architectures which might use an i8042 for serial IO to keyboard, mouse, etc should select ARCH_MIGHT_HAVE_PC_SERIO. Signed-off-by: Mark Salter Acked-by: Tony Luck Signed-off-by: Dmitry Torokhov --- arch/ia64/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index 4e4119b0e691..f7337aab201a 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -7,6 +7,7 @@ menu "Processor type and features" config IA64 bool select ARCH_MIGHT_HAVE_PC_PARPORT + select ARCH_MIGHT_HAVE_PC_SERIO select PCI if (!IA64_HP_SIM) select ACPI if (!IA64_HP_SIM) select PM if (!IA64_HP_SIM) -- cgit v1.2.3 From fab4610583855d544394320d47fccb43305a6398 Mon Sep 17 00:00:00 2001 From: Lv Zheng Date: Wed, 8 Jan 2014 13:43:40 +0800 Subject: ACPICA: Cleanup the option of forcing the use of the RSDT. This change adds a runtime option that will force ACPICA to use the RSDT instead of the XSDT. Although the ACPI spec requires that an XSDT be used instead of the RSDT, the XSDT has been found to be corrupt or ill-formed on some machines. This option is already in the Linux kernel. When it is back ported to ACPICA, code is re-written to follow ACPICA coding style. This patch is the generation of the integration. Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki --- arch/ia64/kernel/acpi.c | 1 - arch/x86/kernel/acpi/boot.c | 3 +-- drivers/acpi/acpica/acglobal.h | 8 ++++++++ drivers/acpi/acpica/tbutils.c | 10 +++++----- include/acpi/acpixf.h | 16 ++++++++-------- 5 files changed, 22 insertions(+), 16 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 59d52e3aef12..28dc6ba6690a 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -61,7 +61,6 @@ #define PREFIX "ACPI: " -u32 acpi_rsdt_forced; unsigned int acpi_cpei_override; unsigned int acpi_cpei_phys_cpuid; diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 6c0b43bd024b..0b0b91b83d51 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -46,7 +46,6 @@ #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ static int __initdata acpi_force = 0; -u32 acpi_rsdt_forced; int acpi_disabled; EXPORT_SYMBOL(acpi_disabled); @@ -1564,7 +1563,7 @@ static int __init parse_acpi(char *arg) } /* acpi=rsdt use RSDT instead of XSDT */ else if (strcmp(arg, "rsdt") == 0) { - acpi_rsdt_forced = 1; + acpi_gbl_do_not_use_xsdt = TRUE; } /* "acpi=noirq" disables ACPI interrupt routing */ else if (strcmp(arg, "noirq") == 0) { diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index e9f1fc7f99c7..cffb45742aa5 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -118,6 +118,14 @@ bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); */ u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); +/* + * Optionally ignore an XSDT if present and use the RSDT instead. + * Although the ACPI specification requires that an XSDT be used instead + * of the RSDT, the XSDT has been found to be corrupt or ill-formed on + * some machines. Default behavior is to use the XSDT if present. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_do_not_use_xsdt, FALSE); + /* * Optionally truncate I/O addresses to 16 bits. Provides compatibility * with other ACPI implementations. NOTE: During ACPICA initialization, diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index ee6067062cdc..6412d3c301cb 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -478,10 +478,10 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) ACPI_CAST_PTR(struct acpi_table_header, rsdp)); - /* Differentiate between RSDT and XSDT root tables */ + /* Use XSDT if present and not overridden. Otherwise, use RSDT */ - if ((rsdp->revision > 1) && rsdp->xsdt_physical_address - && !acpi_rsdt_forced) { + if ((rsdp->revision > 1) && + rsdp->xsdt_physical_address && !acpi_gbl_do_not_use_xsdt) { /* * RSDP contains an XSDT (64-bit physical addresses). We must use * the XSDT if the revision is > 1 and the XSDT pointer is present, @@ -503,8 +503,8 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); /* - * If it is present, validate the XSDT for access/size and ensure - * that all table entries are at least non-NULL + * If it is present and used, validate the XSDT for access/size + * and ensure that all table entries are at least non-NULL */ if (table_entry_size == ACPI_XSDT_ENTRY_SIZE) { status = acpi_tb_validate_xsdt(address); diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 4278aba96503..30b01f889538 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -54,7 +54,6 @@ #include extern u8 acpi_gbl_permanent_mmap; -extern u32 acpi_rsdt_forced; /* * Globals that are publically available @@ -72,17 +71,18 @@ extern u32 acpi_dbg_layer; /* ACPICA runtime options */ -extern u8 acpi_gbl_enable_interpreter_slack; extern u8 acpi_gbl_all_methods_serialized; -extern u8 acpi_gbl_create_osi_method; -extern u8 acpi_gbl_use_default_register_widths; -extern acpi_name acpi_gbl_trace_method_name; -extern u32 acpi_gbl_trace_flags; -extern bool acpi_gbl_enable_aml_debug_object; extern u8 acpi_gbl_copy_dsdt_locally; -extern u8 acpi_gbl_truncate_io_addresses; +extern u8 acpi_gbl_create_osi_method; extern u8 acpi_gbl_disable_auto_repair; extern u8 acpi_gbl_disable_ssdt_table_load; +extern u8 acpi_gbl_do_not_use_xsdt; +extern bool acpi_gbl_enable_aml_debug_object; +extern u8 acpi_gbl_enable_interpreter_slack; +extern u32 acpi_gbl_trace_flags; +extern acpi_name acpi_gbl_trace_method_name; +extern u8 acpi_gbl_truncate_io_addresses; +extern u8 acpi_gbl_use_default_register_widths; /* * Hardware-reduced prototypes. All interfaces that use these macros will -- cgit v1.2.3 From 47933ad41a86a4a9b50bed7c9b9bd2ba242aac63 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Wed, 6 Nov 2013 14:57:36 +0100 Subject: arch: Introduce smp_load_acquire(), smp_store_release() A number of situations currently require the heavyweight smp_mb(), even though there is no need to order prior stores against later loads. Many architectures have much cheaper ways to handle these situations, but the Linux kernel currently has no portable way to make use of them. This commit therefore supplies smp_load_acquire() and smp_store_release() to remedy this situation. The new smp_load_acquire() primitive orders the specified load against any subsequent reads or writes, while the new smp_store_release() primitive orders the specifed store against any prior reads or writes. These primitives allow array-based circular FIFOs to be implemented without an smp_mb(), and also allow a theoretical hole in rcu_assign_pointer() to be closed at no additional expense on most architectures. In addition, the RCU experience transitioning from explicit smp_read_barrier_depends() and smp_wmb() to rcu_dereference() and rcu_assign_pointer(), respectively resulted in substantial improvements in readability. It therefore seems likely that replacing other explicit barriers with smp_load_acquire() and smp_store_release() will provide similar benefits. It appears that roughly half of the explicit barriers in core kernel code might be so replaced. [Changelog by PaulMck] Reviewed-by: "Paul E. McKenney" Signed-off-by: Peter Zijlstra Acked-by: Will Deacon Cc: Benjamin Herrenschmidt Cc: Frederic Weisbecker Cc: Mathieu Desnoyers Cc: Michael Ellerman Cc: Michael Neuling Cc: Russell King Cc: Geert Uytterhoeven Cc: Heiko Carstens Cc: Linus Torvalds Cc: Martin Schwidefsky Cc: Victor Kaplansky Cc: Tony Luck Cc: Oleg Nesterov Link: http://lkml.kernel.org/r/20131213150640.908486364@infradead.org Signed-off-by: Ingo Molnar --- arch/arm/include/asm/barrier.h | 15 +++++++++++ arch/arm64/include/asm/barrier.h | 50 +++++++++++++++++++++++++++++++++++++ arch/ia64/include/asm/barrier.h | 23 +++++++++++++++++ arch/metag/include/asm/barrier.h | 15 +++++++++++ arch/mips/include/asm/barrier.h | 15 +++++++++++ arch/powerpc/include/asm/barrier.h | 21 +++++++++++++++- arch/s390/include/asm/barrier.h | 15 +++++++++++ arch/sparc/include/asm/barrier_64.h | 15 +++++++++++ arch/x86/include/asm/barrier.h | 43 ++++++++++++++++++++++++++++++- include/asm-generic/barrier.h | 15 +++++++++++ include/linux/compiler.h | 9 +++++++ 11 files changed, 234 insertions(+), 2 deletions(-) (limited to 'arch/ia64') diff --git a/arch/arm/include/asm/barrier.h b/arch/arm/include/asm/barrier.h index 60f15e274e6d..2f59f7443396 100644 --- a/arch/arm/include/asm/barrier.h +++ b/arch/arm/include/asm/barrier.h @@ -59,6 +59,21 @@ #define smp_wmb() dmb(ishst) #endif +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #define read_barrier_depends() do { } while(0) #define smp_read_barrier_depends() do { } while(0) diff --git a/arch/arm64/include/asm/barrier.h b/arch/arm64/include/asm/barrier.h index d4a63338a53c..78e20ba8806b 100644 --- a/arch/arm64/include/asm/barrier.h +++ b/arch/arm64/include/asm/barrier.h @@ -35,10 +35,60 @@ #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #else + #define smp_mb() asm volatile("dmb ish" : : : "memory") #define smp_rmb() asm volatile("dmb ishld" : : : "memory") #define smp_wmb() asm volatile("dmb ishst" : : : "memory") + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + switch (sizeof(*p)) { \ + case 4: \ + asm volatile ("stlr %w1, %0" \ + : "=Q" (*p) : "r" (v) : "memory"); \ + break; \ + case 8: \ + asm volatile ("stlr %1, %0" \ + : "=Q" (*p) : "r" (v) : "memory"); \ + break; \ + } \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1; \ + compiletime_assert_atomic_type(*p); \ + switch (sizeof(*p)) { \ + case 4: \ + asm volatile ("ldar %w0, %1" \ + : "=r" (___p1) : "Q" (*p) : "memory"); \ + break; \ + case 8: \ + asm volatile ("ldar %0, %1" \ + : "=r" (___p1) : "Q" (*p) : "memory"); \ + break; \ + } \ + ___p1; \ +}) + #endif #define read_barrier_depends() do { } while(0) diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h index 60576e06b6fb..d0a69aa35e27 100644 --- a/arch/ia64/include/asm/barrier.h +++ b/arch/ia64/include/asm/barrier.h @@ -45,13 +45,36 @@ # define smp_rmb() rmb() # define smp_wmb() wmb() # define smp_read_barrier_depends() read_barrier_depends() + #else + # define smp_mb() barrier() # define smp_rmb() barrier() # define smp_wmb() barrier() # define smp_read_barrier_depends() do { } while(0) + #endif +/* + * IA64 GCC turns volatile stores into st.rel and volatile loads into ld.acq no + * need for asm trickery! + */ + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + /* * XXX check on this ---I suspect what Linus really wants here is * acquire vs release semantics but we can't discuss this stuff with diff --git a/arch/metag/include/asm/barrier.h b/arch/metag/include/asm/barrier.h index c90bfc6bf648..5d6b4b407dda 100644 --- a/arch/metag/include/asm/barrier.h +++ b/arch/metag/include/asm/barrier.h @@ -82,4 +82,19 @@ static inline void fence(void) #define smp_read_barrier_depends() do { } while (0) #define set_mb(var, value) do { var = value; smp_mb(); } while (0) +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #endif /* _ASM_METAG_BARRIER_H */ diff --git a/arch/mips/include/asm/barrier.h b/arch/mips/include/asm/barrier.h index f26d8e1bf3c3..e1aa4e4c2984 100644 --- a/arch/mips/include/asm/barrier.h +++ b/arch/mips/include/asm/barrier.h @@ -180,4 +180,19 @@ #define nudge_writes() mb() #endif +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #endif /* __ASM_BARRIER_H */ diff --git a/arch/powerpc/include/asm/barrier.h b/arch/powerpc/include/asm/barrier.h index ae782254e731..f89da808ce31 100644 --- a/arch/powerpc/include/asm/barrier.h +++ b/arch/powerpc/include/asm/barrier.h @@ -45,11 +45,15 @@ # define SMPWMB eieio #endif +#define __lwsync() __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory") + #define smp_mb() mb() -#define smp_rmb() __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory") +#define smp_rmb() __lwsync() #define smp_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") #define smp_read_barrier_depends() read_barrier_depends() #else +#define __lwsync() barrier() + #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() @@ -65,4 +69,19 @@ #define data_barrier(x) \ asm volatile("twi 0,%0,0; isync" : : "r" (x) : "memory"); +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + __lwsync(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + __lwsync(); \ + ___p1; \ +}) + #endif /* _ASM_POWERPC_BARRIER_H */ diff --git a/arch/s390/include/asm/barrier.h b/arch/s390/include/asm/barrier.h index 16760eeb79b0..578680f6207a 100644 --- a/arch/s390/include/asm/barrier.h +++ b/arch/s390/include/asm/barrier.h @@ -32,4 +32,19 @@ #define set_mb(var, value) do { var = value; mb(); } while (0) +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + #endif /* __ASM_BARRIER_H */ diff --git a/arch/sparc/include/asm/barrier_64.h b/arch/sparc/include/asm/barrier_64.h index 95d45986f908..b5aad964558e 100644 --- a/arch/sparc/include/asm/barrier_64.h +++ b/arch/sparc/include/asm/barrier_64.h @@ -53,4 +53,19 @@ do { __asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \ #define smp_read_barrier_depends() do { } while(0) +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + #endif /* !(__SPARC64_BARRIER_H) */ diff --git a/arch/x86/include/asm/barrier.h b/arch/x86/include/asm/barrier.h index c6cd358a1eec..04a48903b2eb 100644 --- a/arch/x86/include/asm/barrier.h +++ b/arch/x86/include/asm/barrier.h @@ -92,12 +92,53 @@ #endif #define smp_read_barrier_depends() read_barrier_depends() #define set_mb(var, value) do { (void)xchg(&var, value); } while (0) -#else +#else /* !SMP */ #define smp_mb() barrier() #define smp_rmb() barrier() #define smp_wmb() barrier() #define smp_read_barrier_depends() do { } while (0) #define set_mb(var, value) do { var = value; barrier(); } while (0) +#endif /* SMP */ + +#if defined(CONFIG_X86_OOSTORE) || defined(CONFIG_X86_PPRO_FENCE) + +/* + * For either of these options x86 doesn't have a strong TSO memory + * model and we should fall back to full barriers. + */ + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + +#else /* regular x86 TSO memory ordering */ + +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + barrier(); \ + ___p1; \ +}) + #endif /* diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h index d12a90f93689..6f692f8ac664 100644 --- a/include/asm-generic/barrier.h +++ b/include/asm-generic/barrier.h @@ -62,5 +62,20 @@ #define set_mb(var, value) do { (var) = (value); mb(); } while (0) #endif +#define smp_store_release(p, v) \ +do { \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ACCESS_ONCE(*p) = (v); \ +} while (0) + +#define smp_load_acquire(p) \ +({ \ + typeof(*p) ___p1 = ACCESS_ONCE(*p); \ + compiletime_assert_atomic_type(*p); \ + smp_mb(); \ + ___p1; \ +}) + #endif /* !__ASSEMBLY__ */ #endif /* __ASM_GENERIC_BARRIER_H */ diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 92669cd182a6..fe7a686dfd8d 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -298,6 +298,11 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) #endif +/* Is this type a native word size -- useful for atomic operations */ +#ifndef __native_word +# define __native_word(t) (sizeof(t) == sizeof(int) || sizeof(t) == sizeof(long)) +#endif + /* Compile time object size, -1 for unknown */ #ifndef __compiletime_object_size # define __compiletime_object_size(obj) -1 @@ -337,6 +342,10 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); #define compiletime_assert(condition, msg) \ _compiletime_assert(condition, msg, __compiletime_assert_, __LINE__) +#define compiletime_assert_atomic_type(t) \ + compiletime_assert(__native_word(t), \ + "Need native word sized stores/loads for atomicity.") + /* * Prevent the compiler from merging or refetching accesses. The compiler * is also forbidden from reordering successive instances of ACCESS_ONCE(), -- cgit v1.2.3 From ea02f9411d9faa3553ed09ce0ec9f00ceae9885e Mon Sep 17 00:00:00 2001 From: Michal Sekletar Date: Fri, 17 Jan 2014 17:09:45 +0100 Subject: net: introduce SO_BPF_EXTENSIONS For user space packet capturing libraries such as libpcap, there's currently only one way to check which BPF extensions are supported by the kernel, that is, commit aa1113d9f85d ("net: filter: return -EINVAL if BPF_S_ANC* operation is not supported"). For querying all extensions at once this might be rather inconvenient. Therefore, this patch introduces a new option which can be used as an argument for getsockopt(), and allows one to obtain information about which BPF extensions are supported by the current kernel. As David Miller suggests, we do not need to define any bits right now and status quo can just return 0 in order to state that this versions supports SKF_AD_PROTOCOL up to SKF_AD_PAY_OFFSET. Later additions to BPF extensions need to add their bits to the bpf_tell_extensions() function, as documented in the comment. Signed-off-by: Michal Sekletar Cc: David Miller Reviewed-by: Daniel Borkmann Signed-off-by: David S. Miller --- arch/alpha/include/uapi/asm/socket.h | 2 ++ arch/avr32/include/uapi/asm/socket.h | 2 ++ arch/cris/include/uapi/asm/socket.h | 2 ++ arch/frv/include/uapi/asm/socket.h | 2 ++ arch/ia64/include/uapi/asm/socket.h | 2 ++ arch/m32r/include/uapi/asm/socket.h | 2 ++ arch/mips/include/uapi/asm/socket.h | 2 ++ arch/mn10300/include/uapi/asm/socket.h | 2 ++ arch/parisc/include/uapi/asm/socket.h | 2 ++ arch/powerpc/include/uapi/asm/socket.h | 2 ++ arch/s390/include/uapi/asm/socket.h | 2 ++ arch/sparc/include/uapi/asm/socket.h | 2 ++ arch/xtensa/include/uapi/asm/socket.h | 2 ++ include/linux/filter.h | 11 +++++++++++ include/uapi/asm-generic/socket.h | 2 ++ net/core/sock.c | 4 ++++ 16 files changed, 43 insertions(+) (limited to 'arch/ia64') diff --git a/arch/alpha/include/uapi/asm/socket.h b/arch/alpha/include/uapi/asm/socket.h index e3a1491d5073..3de1394bcab8 100644 --- a/arch/alpha/include/uapi/asm/socket.h +++ b/arch/alpha/include/uapi/asm/socket.h @@ -85,4 +85,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/avr32/include/uapi/asm/socket.h b/arch/avr32/include/uapi/asm/socket.h index cbf902e4cd9e..6e6cd159924b 100644 --- a/arch/avr32/include/uapi/asm/socket.h +++ b/arch/avr32/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI__ASM_AVR32_SOCKET_H */ diff --git a/arch/cris/include/uapi/asm/socket.h b/arch/cris/include/uapi/asm/socket.h index 13829aaaeec5..ed94e5ed0a23 100644 --- a/arch/cris/include/uapi/asm/socket.h +++ b/arch/cris/include/uapi/asm/socket.h @@ -80,6 +80,8 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/frv/include/uapi/asm/socket.h b/arch/frv/include/uapi/asm/socket.h index 5d4299762426..ca2c6e6f31c6 100644 --- a/arch/frv/include/uapi/asm/socket.h +++ b/arch/frv/include/uapi/asm/socket.h @@ -78,5 +78,7 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/ia64/include/uapi/asm/socket.h b/arch/ia64/include/uapi/asm/socket.h index c25302fb48d9..a1b49bac7951 100644 --- a/arch/ia64/include/uapi/asm/socket.h +++ b/arch/ia64/include/uapi/asm/socket.h @@ -87,4 +87,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_IA64_SOCKET_H */ diff --git a/arch/m32r/include/uapi/asm/socket.h b/arch/m32r/include/uapi/asm/socket.h index 52966650114f..6c9a24b3aefa 100644 --- a/arch/m32r/include/uapi/asm/socket.h +++ b/arch/m32r/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_M32R_SOCKET_H */ diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h index 0df9787cd84d..a14baa218c76 100644 --- a/arch/mips/include/uapi/asm/socket.h +++ b/arch/mips/include/uapi/asm/socket.h @@ -96,4 +96,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/mn10300/include/uapi/asm/socket.h b/arch/mn10300/include/uapi/asm/socket.h index 71dedcae55a6..6aa3ce1854aa 100644 --- a/arch/mn10300/include/uapi/asm/socket.h +++ b/arch/mn10300/include/uapi/asm/socket.h @@ -78,4 +78,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/parisc/include/uapi/asm/socket.h b/arch/parisc/include/uapi/asm/socket.h index 70b3674dac4e..fe35ceacf0e7 100644 --- a/arch/parisc/include/uapi/asm/socket.h +++ b/arch/parisc/include/uapi/asm/socket.h @@ -77,4 +77,6 @@ #define SO_MAX_PACING_RATE 0x4028 +#define SO_BPF_EXTENSIONS 0x4029 + #endif /* _UAPI_ASM_SOCKET_H */ diff --git a/arch/powerpc/include/uapi/asm/socket.h b/arch/powerpc/include/uapi/asm/socket.h index fa698324a1fd..a9c3e2e18c05 100644 --- a/arch/powerpc/include/uapi/asm/socket.h +++ b/arch/powerpc/include/uapi/asm/socket.h @@ -85,4 +85,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_POWERPC_SOCKET_H */ diff --git a/arch/s390/include/uapi/asm/socket.h b/arch/s390/include/uapi/asm/socket.h index c286c2e868f0..e031332096d7 100644 --- a/arch/s390/include/uapi/asm/socket.h +++ b/arch/s390/include/uapi/asm/socket.h @@ -84,4 +84,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _ASM_SOCKET_H */ diff --git a/arch/sparc/include/uapi/asm/socket.h b/arch/sparc/include/uapi/asm/socket.h index 0f21e9a5ca18..54d9608681b6 100644 --- a/arch/sparc/include/uapi/asm/socket.h +++ b/arch/sparc/include/uapi/asm/socket.h @@ -74,6 +74,8 @@ #define SO_MAX_PACING_RATE 0x0031 +#define SO_BPF_EXTENSIONS 0x0032 + /* Security levels - as per NRL IPv6 - don't actually do anything */ #define SO_SECURITY_AUTHENTICATION 0x5001 #define SO_SECURITY_ENCRYPTION_TRANSPORT 0x5002 diff --git a/arch/xtensa/include/uapi/asm/socket.h b/arch/xtensa/include/uapi/asm/socket.h index 7db5c22faa68..39acec0cf0b1 100644 --- a/arch/xtensa/include/uapi/asm/socket.h +++ b/arch/xtensa/include/uapi/asm/socket.h @@ -89,4 +89,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* _XTENSA_SOCKET_H */ diff --git a/include/linux/filter.h b/include/linux/filter.h index ff4e40cd45b1..1a95a2dcf113 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -83,6 +83,17 @@ static inline void bpf_jit_free(struct sk_filter *fp) #define SK_RUN_FILTER(FILTER, SKB) sk_run_filter(SKB, FILTER->insns) #endif +static inline int bpf_tell_extensions(void) +{ + /* When adding new BPF extension it is necessary to enumerate + * it here, so userspace software which wants to know what is + * supported can do so by inspecting return value of this + * function + */ + + return 0; +} + enum { BPF_S_RET_K = 1, BPF_S_RET_A, diff --git a/include/uapi/asm-generic/socket.h b/include/uapi/asm-generic/socket.h index 38f14d0264c3..ea0796bdcf88 100644 --- a/include/uapi/asm-generic/socket.h +++ b/include/uapi/asm-generic/socket.h @@ -80,4 +80,6 @@ #define SO_MAX_PACING_RATE 47 +#define SO_BPF_EXTENSIONS 48 + #endif /* __ASM_GENERIC_SOCKET_H */ diff --git a/net/core/sock.c b/net/core/sock.c index b3f7ee3008a0..0c127dcdf6a8 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1167,6 +1167,10 @@ int sock_getsockopt(struct socket *sock, int level, int optname, v.val = sock_flag(sk, SOCK_FILTER_LOCKED); break; + case SO_BPF_EXTENSIONS: + v.val = bpf_tell_extensions(); + break; + case SO_SELECT_ERR_QUEUE: v.val = sock_flag(sk, SOCK_SELECT_ERR_QUEUE); break; -- cgit v1.2.3 From aec6a8889a98a0cd58357cd0937a25189908f191 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Tue, 21 Jan 2014 15:49:13 -0800 Subject: mm, show_mem: remove SHOW_MEM_FILTER_PAGE_COUNT Commit 4b59e6c47309 ("mm, show_mem: suppress page counts in non-blockable contexts") introduced SHOW_MEM_FILTER_PAGE_COUNT to suppress PFN walks on large memory machines. Commit c78e93630d15 ("mm: do not walk all of system memory during show_mem") avoided a PFN walk in the generic show_mem helper which removes the requirement for SHOW_MEM_FILTER_PAGE_COUNT in that case. This patch removes PFN walkers from the arch-specific implementations that report on a per-node or per-zone granularity. ARM and unicore32 still do a PFN walk as they report memory usage on each bank which is a much finer granularity where the debugging information may still be of use. As the remaining arches doing PFN walks have relatively small amounts of memory, this patch simply removes SHOW_MEM_FILTER_PAGE_COUNT. [akpm@linux-foundation.org: fix parisc] Signed-off-by: Mel Gorman Acked-by: David Rientjes Cc: Tony Luck Cc: Russell King Cc: James Bottomley Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/arm/mm/init.c | 3 --- arch/ia64/mm/contig.c | 68 ------------------------------------------------ arch/ia64/mm/discontig.c | 63 -------------------------------------------- arch/ia64/mm/init.c | 48 ++++++++++++++++++++++++++++++++++ arch/parisc/mm/init.c | 59 ++++++++++++----------------------------- arch/unicore32/mm/init.c | 3 --- include/linux/mm.h | 1 - lib/show_mem.c | 3 --- mm/page_alloc.c | 7 ----- 9 files changed, 65 insertions(+), 190 deletions(-) (limited to 'arch/ia64') diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 3e8f106ee5fe..2e71e245df90 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -92,9 +92,6 @@ void show_mem(unsigned int filter) printk("Mem-info:\n"); show_free_areas(filter); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; - for_each_bank (i, mi) { struct membank *bank = &mi->bank[i]; unsigned int pfn1, pfn2; diff --git a/arch/ia64/mm/contig.c b/arch/ia64/mm/contig.c index da5237d636d6..52715a71aede 100644 --- a/arch/ia64/mm/contig.c +++ b/arch/ia64/mm/contig.c @@ -31,74 +31,6 @@ static unsigned long max_gap; #endif -/** - * show_mem - give short summary of memory stats - * - * Shows a simple page count of reserved and used pages in the system. - * For discontig machines, it does this on a per-pgdat basis. - */ -void show_mem(unsigned int filter) -{ - int i, total_reserved = 0; - int total_shared = 0, total_cached = 0; - unsigned long total_present = 0; - pg_data_t *pgdat; - - printk(KERN_INFO "Mem-info:\n"); - show_free_areas(filter); - printk(KERN_INFO "Node memory in pages:\n"); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; - for_each_online_pgdat(pgdat) { - unsigned long present; - unsigned long flags; - int shared = 0, cached = 0, reserved = 0; - int nid = pgdat->node_id; - - if (skip_free_areas_node(filter, nid)) - continue; - pgdat_resize_lock(pgdat, &flags); - present = pgdat->node_present_pages; - for(i = 0; i < pgdat->node_spanned_pages; i++) { - struct page *page; - if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) - touch_nmi_watchdog(); - if (pfn_valid(pgdat->node_start_pfn + i)) - page = pfn_to_page(pgdat->node_start_pfn + i); - else { -#ifdef CONFIG_VIRTUAL_MEM_MAP - if (max_gap < LARGE_GAP) - continue; -#endif - i = vmemmap_find_next_valid_pfn(nid, i) - 1; - continue; - } - if (PageReserved(page)) - reserved++; - else if (PageSwapCache(page)) - cached++; - else if (page_count(page)) - shared += page_count(page)-1; - } - pgdat_resize_unlock(pgdat, &flags); - total_present += present; - total_reserved += reserved; - total_cached += cached; - total_shared += shared; - printk(KERN_INFO "Node %4d: RAM: %11ld, rsvd: %8d, " - "shrd: %10d, swpd: %10d\n", nid, - present, reserved, shared, cached); - } - printk(KERN_INFO "%ld pages of RAM\n", total_present); - printk(KERN_INFO "%d reserved pages\n", total_reserved); - printk(KERN_INFO "%d pages shared\n", total_shared); - printk(KERN_INFO "%d pages swap cached\n", total_cached); - printk(KERN_INFO "Total of %ld pages in page table cache\n", - quicklist_total_size()); - printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages()); -} - - /* physical address where the bootmem map is located */ unsigned long bootmap_start; diff --git a/arch/ia64/mm/discontig.c b/arch/ia64/mm/discontig.c index 2de08f4d9930..878626805369 100644 --- a/arch/ia64/mm/discontig.c +++ b/arch/ia64/mm/discontig.c @@ -607,69 +607,6 @@ void *per_cpu_init(void) } #endif /* CONFIG_SMP */ -/** - * show_mem - give short summary of memory stats - * - * Shows a simple page count of reserved and used pages in the system. - * For discontig machines, it does this on a per-pgdat basis. - */ -void show_mem(unsigned int filter) -{ - int i, total_reserved = 0; - int total_shared = 0, total_cached = 0; - unsigned long total_present = 0; - pg_data_t *pgdat; - - printk(KERN_INFO "Mem-info:\n"); - show_free_areas(filter); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; - printk(KERN_INFO "Node memory in pages:\n"); - for_each_online_pgdat(pgdat) { - unsigned long present; - unsigned long flags; - int shared = 0, cached = 0, reserved = 0; - int nid = pgdat->node_id; - - if (skip_free_areas_node(filter, nid)) - continue; - pgdat_resize_lock(pgdat, &flags); - present = pgdat->node_present_pages; - for(i = 0; i < pgdat->node_spanned_pages; i++) { - struct page *page; - if (unlikely(i % MAX_ORDER_NR_PAGES == 0)) - touch_nmi_watchdog(); - if (pfn_valid(pgdat->node_start_pfn + i)) - page = pfn_to_page(pgdat->node_start_pfn + i); - else { - i = vmemmap_find_next_valid_pfn(nid, i) - 1; - continue; - } - if (PageReserved(page)) - reserved++; - else if (PageSwapCache(page)) - cached++; - else if (page_count(page)) - shared += page_count(page)-1; - } - pgdat_resize_unlock(pgdat, &flags); - total_present += present; - total_reserved += reserved; - total_cached += cached; - total_shared += shared; - printk(KERN_INFO "Node %4d: RAM: %11ld, rsvd: %8d, " - "shrd: %10d, swpd: %10d\n", nid, - present, reserved, shared, cached); - } - printk(KERN_INFO "%ld pages of RAM\n", total_present); - printk(KERN_INFO "%d reserved pages\n", total_reserved); - printk(KERN_INFO "%d pages shared\n", total_shared); - printk(KERN_INFO "%d pages swap cached\n", total_cached); - printk(KERN_INFO "Total of %ld pages in page table cache\n", - quicklist_total_size()); - printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages()); -} - /** * call_pernode_memory - use SRAT to call callback functions with node info * @start: physical start of range diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c index 88504abf5704..25c350264a41 100644 --- a/arch/ia64/mm/init.c +++ b/arch/ia64/mm/init.c @@ -684,3 +684,51 @@ per_linux32_init(void) } __initcall(per_linux32_init); + +/** + * show_mem - give short summary of memory stats + * + * Shows a simple page count of reserved and used pages in the system. + * For discontig machines, it does this on a per-pgdat basis. + */ +void show_mem(unsigned int filter) +{ + int total_reserved = 0; + unsigned long total_present = 0; + pg_data_t *pgdat; + + printk(KERN_INFO "Mem-info:\n"); + show_free_areas(filter); + printk(KERN_INFO "Node memory in pages:\n"); + for_each_online_pgdat(pgdat) { + unsigned long present; + unsigned long flags; + int reserved = 0; + int nid = pgdat->node_id; + int zoneid; + + if (skip_free_areas_node(filter, nid)) + continue; + pgdat_resize_lock(pgdat, &flags); + + for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) { + struct zone *zone = &pgdat->node_zones[zoneid]; + if (!populated_zone(zone)) + continue; + + reserved += zone->present_pages - zone->managed_pages; + } + present = pgdat->node_present_pages; + + pgdat_resize_unlock(pgdat, &flags); + total_present += present; + total_reserved += reserved; + printk(KERN_INFO "Node %4d: RAM: %11ld, rsvd: %8d, ", + nid, present, reserved); + } + printk(KERN_INFO "%ld pages of RAM\n", total_present); + printk(KERN_INFO "%d reserved pages\n", total_reserved); + printk(KERN_INFO "Total of %ld pages in page table cache\n", + quicklist_total_size()); + printk(KERN_INFO "%ld free buffer pages\n", nr_free_buffer_pages()); +} diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c index 96f8168cf4ec..ae085ad0fba0 100644 --- a/arch/parisc/mm/init.c +++ b/arch/parisc/mm/init.c @@ -645,55 +645,30 @@ EXPORT_SYMBOL(empty_zero_page); void show_mem(unsigned int filter) { - int i,free = 0,total = 0,reserved = 0; - int shared = 0, cached = 0; + int total = 0,reserved = 0; + pg_data_t *pgdat; printk(KERN_INFO "Mem-info:\n"); show_free_areas(filter); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; -#ifndef CONFIG_DISCONTIGMEM - i = max_mapnr; - while (i-- > 0) { - total++; - if (PageReserved(mem_map+i)) - reserved++; - else if (PageSwapCache(mem_map+i)) - cached++; - else if (!page_count(&mem_map[i])) - free++; - else - shared += page_count(&mem_map[i]) - 1; - } -#else - for (i = 0; i < npmem_ranges; i++) { - int j; - for (j = node_start_pfn(i); j < node_end_pfn(i); j++) { - struct page *p; - unsigned long flags; - - pgdat_resize_lock(NODE_DATA(i), &flags); - p = nid_page_nr(i, j) - node_start_pfn(i); - - total++; - if (PageReserved(p)) - reserved++; - else if (PageSwapCache(p)) - cached++; - else if (!page_count(p)) - free++; - else - shared += page_count(p) - 1; - pgdat_resize_unlock(NODE_DATA(i), &flags); - } + for_each_online_pgdat(pgdat) { + unsigned long flags; + int zoneid; + + pgdat_resize_lock(pgdat, &flags); + for (zoneid = 0; zoneid < MAX_NR_ZONES; zoneid++) { + struct zone *zone = &pgdat->node_zones[zoneid]; + if (!populated_zone(zone)) + continue; + + total += zone->present_pages; + reserved = zone->present_pages - zone->managed_pages; + } + pgdat_resize_unlock(pgdat, &flags); } -#endif + printk(KERN_INFO "%d pages of RAM\n", total); printk(KERN_INFO "%d reserved pages\n", reserved); - printk(KERN_INFO "%d pages shared\n", shared); - printk(KERN_INFO "%d pages swap cached\n", cached); - #ifdef CONFIG_DISCONTIGMEM { diff --git a/arch/unicore32/mm/init.c b/arch/unicore32/mm/init.c index ae6bc036db92..be2bde9b07cf 100644 --- a/arch/unicore32/mm/init.c +++ b/arch/unicore32/mm/init.c @@ -66,9 +66,6 @@ void show_mem(unsigned int filter) printk(KERN_DEFAULT "Mem-info:\n"); show_free_areas(filter); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; - for_each_bank(i, mi) { struct membank *bank = &mi->bank[i]; unsigned int pfn1, pfn2; diff --git a/include/linux/mm.h b/include/linux/mm.h index fc4415256ec3..4c0c01afc19b 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1016,7 +1016,6 @@ extern void pagefault_out_of_memory(void); * various contexts. */ #define SHOW_MEM_FILTER_NODES (0x0001u) /* disallowed nodes */ -#define SHOW_MEM_FILTER_PAGE_COUNT (0x0002u) /* page type count */ extern void show_free_areas(unsigned int flags); extern bool skip_free_areas_node(unsigned int flags, int nid); diff --git a/lib/show_mem.c b/lib/show_mem.c index 5847a4921b8e..f58689f5a24e 100644 --- a/lib/show_mem.c +++ b/lib/show_mem.c @@ -17,9 +17,6 @@ void show_mem(unsigned int filter) printk("Mem-Info:\n"); show_free_areas(filter); - if (filter & SHOW_MEM_FILTER_PAGE_COUNT) - return; - for_each_online_pgdat(pgdat) { unsigned long flags; int zoneid; diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 89d81f4429ca..ec4417cb458a 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2071,13 +2071,6 @@ void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...) debug_guardpage_minorder() > 0) return; - /* - * Walking all memory to count page types is very expensive and should - * be inhibited in non-blockable contexts. - */ - if (!(gfp_mask & __GFP_WAIT)) - filter |= SHOW_MEM_FILTER_PAGE_COUNT; - /* * This documents exceptions given to allocations in certain * contexts that are allowed to allocate outside current's set -- cgit v1.2.3 From c28aa1f0a847c36daa4280b611e2b54bad75c576 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Thu, 23 Jan 2014 15:54:16 -0800 Subject: printk/cache: mark printk_once test variable __read_mostly Add #include to define __read_mostly. Convert cache.h to use uapi/linux/kernel.h instead of linux/kernel.h to avoid recursive #includes. Convert the ALIGN macro to __ALIGN_KERNEL. printk_once only sets the bool variable tested once so mark it __read_mostly. Neaten the alignment so it matches the rest of the pr__once #defines too. Signed-off-by: Joe Perches Reviewed-by: James Hogan Cc: Wu Fengguang Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/include/asm/processor.h | 1 + include/linux/cache.h | 4 ++-- include/linux/printk.h | 19 ++++++++++--------- 3 files changed, 13 insertions(+), 11 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/processor.h b/arch/ia64/include/asm/processor.h index 5a84b3a50741..efd1b927ccb7 100644 --- a/arch/ia64/include/asm/processor.h +++ b/arch/ia64/include/asm/processor.h @@ -71,6 +71,7 @@ #include #include #include +#include #include #include diff --git a/include/linux/cache.h b/include/linux/cache.h index 4c570653ab84..17e7e82d2aa7 100644 --- a/include/linux/cache.h +++ b/include/linux/cache.h @@ -1,11 +1,11 @@ #ifndef __LINUX_CACHE_H #define __LINUX_CACHE_H -#include +#include #include #ifndef L1_CACHE_ALIGN -#define L1_CACHE_ALIGN(x) ALIGN(x, L1_CACHE_BYTES) +#define L1_CACHE_ALIGN(x) __ALIGN_KERNEL(x, L1_CACHE_BYTES) #endif #ifndef SMP_CACHE_BYTES diff --git a/include/linux/printk.h b/include/linux/printk.h index 694925837a16..cc6f74d65167 100644 --- a/include/linux/printk.h +++ b/include/linux/printk.h @@ -5,6 +5,7 @@ #include #include #include +#include extern const char linux_banner[]; extern const char linux_proc_banner[]; @@ -253,17 +254,17 @@ extern asmlinkage void dump_stack(void) __cold; */ #ifdef CONFIG_PRINTK -#define printk_once(fmt, ...) \ -({ \ - static bool __print_once; \ - \ - if (!__print_once) { \ - __print_once = true; \ - printk(fmt, ##__VA_ARGS__); \ - } \ +#define printk_once(fmt, ...) \ +({ \ + static bool __print_once __read_mostly; \ + \ + if (!__print_once) { \ + __print_once = true; \ + printk(fmt, ##__VA_ARGS__); \ + } \ }) #else -#define printk_once(fmt, ...) \ +#define printk_once(fmt, ...) \ no_printk(fmt, ##__VA_ARGS__) #endif -- cgit v1.2.3 From cf0744021c5d5de54d2c66e2020c6de2fe800264 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Thu, 23 Jan 2014 15:54:39 -0800 Subject: firmware/dmi_scan: generalize for use by other archs This patch makes a couple of changes to the SMBIOS/DMI scanning code so it can be used on other archs (such as ARM and arm64): (a) wrap the calls to ioremap()/iounmap(), this allows the use of a flavor of ioremap() more suitable for random unaligned access; (b) allow the non-EFI fallback probe into hardcoded physical address 0xF0000 to be disabled. Signed-off-by: Ard Biesheuvel Acked-by: Grant Likely Cc: Ingo Molnar Cc "Luck, Tony" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/Kconfig | 1 + arch/ia64/include/asm/dmi.h | 8 +++++--- arch/x86/Kconfig | 1 + arch/x86/include/asm/dmi.h | 6 ++++-- drivers/firmware/Kconfig | 3 +++ drivers/firmware/dmi_scan.c | 20 ++++++++++---------- 6 files changed, 24 insertions(+), 15 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig index a8c3a11dc5ab..c063b054294e 100644 --- a/arch/ia64/Kconfig +++ b/arch/ia64/Kconfig @@ -104,6 +104,7 @@ config HAVE_SETUP_PER_CPU_AREA config DMI bool default y + select DMI_SCAN_MACHINE_NON_EFI_FALLBACK config EFI bool diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h index 185d3d18d0ec..f365a61f5c71 100644 --- a/arch/ia64/include/asm/dmi.h +++ b/arch/ia64/include/asm/dmi.h @@ -5,8 +5,10 @@ #include /* Use normal IO mappings for DMI */ -#define dmi_ioremap ioremap -#define dmi_iounmap(x,l) iounmap(x) -#define dmi_alloc(l) kzalloc(l, GFP_ATOMIC) +#define dmi_early_remap ioremap +#define dmi_early_unmap(x, l) iounmap(x) +#define dmi_remap ioremap +#define dmi_unmap iounmap +#define dmi_alloc(l) kzalloc(l, GFP_ATOMIC) #endif diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index d3b9186e4c23..5aadc49a7621 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -731,6 +731,7 @@ config APB_TIMER # The code disables itself when not needed. config DMI default y + select DMI_SCAN_MACHINE_NON_EFI_FALLBACK bool "Enable DMI scanning" if EXPERT ---help--- Enabled scanning of DMI to identify machine quirks. Say Y diff --git a/arch/x86/include/asm/dmi.h b/arch/x86/include/asm/dmi.h index fd8f9e2ca35f..535192f6bfad 100644 --- a/arch/x86/include/asm/dmi.h +++ b/arch/x86/include/asm/dmi.h @@ -13,7 +13,9 @@ static __always_inline __init void *dmi_alloc(unsigned len) } /* Use early IO mappings for DMI because it's initialized early */ -#define dmi_ioremap early_ioremap -#define dmi_iounmap early_iounmap +#define dmi_early_remap early_ioremap +#define dmi_early_unmap early_iounmap +#define dmi_remap ioremap +#define dmi_unmap iounmap #endif /* _ASM_X86_DMI_H */ diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 074787281c94..5a29fac951ec 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -108,6 +108,9 @@ config DMI_SYSFS under /sys/firmware/dmi when this option is enabled and loaded. +config DMI_SCAN_MACHINE_NON_EFI_FALLBACK + bool + config ISCSI_IBFT_FIND bool "iSCSI Boot Firmware Table Attributes" depends on X86 diff --git a/drivers/firmware/dmi_scan.c b/drivers/firmware/dmi_scan.c index c7e81ff8f3ef..17afc51f3054 100644 --- a/drivers/firmware/dmi_scan.c +++ b/drivers/firmware/dmi_scan.c @@ -116,7 +116,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *, { u8 *buf; - buf = dmi_ioremap(dmi_base, dmi_len); + buf = dmi_early_remap(dmi_base, dmi_len); if (buf == NULL) return -1; @@ -124,7 +124,7 @@ static int __init dmi_walk_early(void (*decode)(const struct dmi_header *, add_device_randomness(buf, dmi_len); - dmi_iounmap(buf, dmi_len); + dmi_early_unmap(buf, dmi_len); return 0; } @@ -527,18 +527,18 @@ void __init dmi_scan_machine(void) * needed during early boot. This also means we can * iounmap the space when we're done with it. */ - p = dmi_ioremap(efi.smbios, 32); + p = dmi_early_remap(efi.smbios, 32); if (p == NULL) goto error; memcpy_fromio(buf, p, 32); - dmi_iounmap(p, 32); + dmi_early_unmap(p, 32); if (!dmi_present(buf)) { dmi_available = 1; goto out; } - } else { - p = dmi_ioremap(0xF0000, 0x10000); + } else if (IS_ENABLED(CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK)) { + p = dmi_early_remap(0xF0000, 0x10000); if (p == NULL) goto error; @@ -554,12 +554,12 @@ void __init dmi_scan_machine(void) memcpy_fromio(buf + 16, q, 16); if (!dmi_present(buf)) { dmi_available = 1; - dmi_iounmap(p, 0x10000); + dmi_early_unmap(p, 0x10000); goto out; } memcpy(buf, buf + 16, 16); } - dmi_iounmap(p, 0x10000); + dmi_early_unmap(p, 0x10000); } error: pr_info("DMI not present or invalid.\n"); @@ -831,13 +831,13 @@ int dmi_walk(void (*decode)(const struct dmi_header *, void *), if (!dmi_available) return -1; - buf = ioremap(dmi_base, dmi_len); + buf = dmi_remap(dmi_base, dmi_len); if (buf == NULL) return -1; dmi_table(buf, dmi_len, dmi_num, decode, private_data); - iounmap(buf); + dmi_unmap(buf); return 0; } EXPORT_SYMBOL_GPL(dmi_walk); -- cgit v1.2.3 From 7de8246eba58c6f4c315b8c69fb29e445ccf3c80 Mon Sep 17 00:00:00 2001 From: Tony Luck Date: Tue, 28 Jan 2014 09:38:37 -0800 Subject: [IA64] Wire up new sched_setattr and sched_getattr syscalls New syscalls for v3.14 Signed-off-by: Tony Luck --- arch/ia64/include/asm/unistd.h | 2 +- arch/ia64/include/uapi/asm/unistd.h | 2 ++ arch/ia64/kernel/entry.S | 2 ++ 3 files changed, 5 insertions(+), 1 deletion(-) (limited to 'arch/ia64') diff --git a/arch/ia64/include/asm/unistd.h b/arch/ia64/include/asm/unistd.h index afd45e0d552e..ae763d8bf55a 100644 --- a/arch/ia64/include/asm/unistd.h +++ b/arch/ia64/include/asm/unistd.h @@ -11,7 +11,7 @@ -#define NR_syscalls 312 /* length of syscall table */ +#define NR_syscalls 314 /* length of syscall table */ /* * The following defines stop scripts/checksyscalls.sh from complaining about diff --git a/arch/ia64/include/uapi/asm/unistd.h b/arch/ia64/include/uapi/asm/unistd.h index 34fd6fe46da1..715e85f858de 100644 --- a/arch/ia64/include/uapi/asm/unistd.h +++ b/arch/ia64/include/uapi/asm/unistd.h @@ -325,5 +325,7 @@ #define __NR_process_vm_writev 1333 #define __NR_accept4 1334 #define __NR_finit_module 1335 +#define __NR_sched_setattr 1336 +#define __NR_sched_getattr 1337 #endif /* _UAPI_ASM_IA64_UNISTD_H */ diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S index ddea607f948a..fa8d61a312a7 100644 --- a/arch/ia64/kernel/entry.S +++ b/arch/ia64/kernel/entry.S @@ -1773,6 +1773,8 @@ sys_call_table: data8 sys_process_vm_writev data8 sys_accept4 data8 sys_finit_module // 1335 + data8 sys_sched_setattr + data8 sys_sched_getattr .org sys_call_table + 8*NR_syscalls // guard against failures to increase NR_syscalls #endif /* __IA64_ASM_PARAVIRTUALIZED_NATIVE */ -- cgit v1.2.3 From e97ca8e5b864f88b028c1759ba8536fa827d6d96 Mon Sep 17 00:00:00 2001 From: Johannes Weiner Date: Mon, 10 Mar 2014 15:49:43 -0700 Subject: mm: fix GFP_THISNODE callers and clarify GFP_THISNODE is for callers that implement their own clever fallback to remote nodes. It restricts the allocation to the specified node and does not invoke reclaim, assuming that the caller will take care of it when the fallback fails, e.g. through a subsequent allocation request without GFP_THISNODE set. However, many current GFP_THISNODE users only want the node exclusive aspect of the flag, without actually implementing their own fallback or triggering reclaim if necessary. This results in things like page migration failing prematurely even when there is easily reclaimable memory available, unless kswapd happens to be running already or a concurrent allocation attempt triggers the necessary reclaim. Convert all callsites that don't implement their own fallback strategy to __GFP_THISNODE. This restricts the allocation a single node too, but at the same time allows the allocator to enter the slowpath, wake kswapd, and invoke direct reclaim if necessary, to make the allocation happen when memory is full. Signed-off-by: Johannes Weiner Acked-by: Rik van Riel Cc: Jan Stancek Cc: Mel Gorman Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/ia64/kernel/uncached.c | 2 +- arch/powerpc/platforms/cell/ras.c | 3 ++- drivers/misc/sgi-xp/xpc_uv.c | 2 +- include/linux/gfp.h | 4 ++++ include/linux/mmzone.h | 4 ++-- include/linux/slab.h | 2 +- kernel/profile.c | 4 ++-- mm/migrate.c | 11 ++++++----- 8 files changed, 19 insertions(+), 13 deletions(-) (limited to 'arch/ia64') diff --git a/arch/ia64/kernel/uncached.c b/arch/ia64/kernel/uncached.c index a96bcf83a735..20e8a9b21d75 100644 --- a/arch/ia64/kernel/uncached.c +++ b/arch/ia64/kernel/uncached.c @@ -98,7 +98,7 @@ static int uncached_add_chunk(struct uncached_pool *uc_pool, int nid) /* attempt to allocate a granule's worth of cached memory pages */ page = alloc_pages_exact_node(nid, - GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, IA64_GRANULE_SHIFT-PAGE_SHIFT); if (!page) { mutex_unlock(&uc_pool->add_chunk_mutex); diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c index 5ec1e47a0d77..e865d748179b 100644 --- a/arch/powerpc/platforms/cell/ras.c +++ b/arch/powerpc/platforms/cell/ras.c @@ -123,7 +123,8 @@ static int __init cbe_ptcal_enable_on_node(int nid, int order) area->nid = nid; area->order = order; - area->pages = alloc_pages_exact_node(area->nid, GFP_KERNEL|GFP_THISNODE, + area->pages = alloc_pages_exact_node(area->nid, + GFP_KERNEL|__GFP_THISNODE, area->order); if (!area->pages) { diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c index b9e2000969f0..95c894482fdd 100644 --- a/drivers/misc/sgi-xp/xpc_uv.c +++ b/drivers/misc/sgi-xp/xpc_uv.c @@ -240,7 +240,7 @@ xpc_create_gru_mq_uv(unsigned int mq_size, int cpu, char *irq_name, nid = cpu_to_node(cpu); page = alloc_pages_exact_node(nid, - GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, pg_order); if (page == NULL) { dev_err(xpc_part, "xpc_create_gru_mq_uv() failed to alloc %d " diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 0437439bc047..39b81dc7d01a 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -123,6 +123,10 @@ struct vm_area_struct; __GFP_NOMEMALLOC | __GFP_NORETRY | __GFP_NOWARN | \ __GFP_NO_KSWAPD) +/* + * GFP_THISNODE does not perform any reclaim, you most likely want to + * use __GFP_THISNODE to allocate from a given node without fallback! + */ #ifdef CONFIG_NUMA #define GFP_THISNODE (__GFP_THISNODE | __GFP_NOWARN | __GFP_NORETRY) #else diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h index 5f2052c83154..9b61b9bf81ac 100644 --- a/include/linux/mmzone.h +++ b/include/linux/mmzone.h @@ -590,10 +590,10 @@ static inline bool zone_is_empty(struct zone *zone) /* * The NUMA zonelists are doubled because we need zonelists that restrict the - * allocations to a single node for GFP_THISNODE. + * allocations to a single node for __GFP_THISNODE. * * [0] : Zonelist with fallback - * [1] : No fallback (GFP_THISNODE) + * [1] : No fallback (__GFP_THISNODE) */ #define MAX_ZONELISTS 2 diff --git a/include/linux/slab.h b/include/linux/slab.h index 9260abdd67df..b5b2df60299e 100644 --- a/include/linux/slab.h +++ b/include/linux/slab.h @@ -410,7 +410,7 @@ static __always_inline void *kmalloc_large(size_t size, gfp_t flags) * * %GFP_NOWAIT - Allocation will not sleep. * - * %GFP_THISNODE - Allocate node-local memory only. + * %__GFP_THISNODE - Allocate node-local memory only. * * %GFP_DMA - Allocation suitable for DMA. * Should only be used for kmalloc() caches. Otherwise, use a diff --git a/kernel/profile.c b/kernel/profile.c index 6631e1ef55ab..ebdd9c1a86b4 100644 --- a/kernel/profile.c +++ b/kernel/profile.c @@ -549,14 +549,14 @@ static int create_hash_tables(void) struct page *page; page = alloc_pages_exact_node(node, - GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, 0); if (!page) goto out_cleanup; per_cpu(cpu_profile_hits, cpu)[1] = (struct profile_hit *)page_address(page); page = alloc_pages_exact_node(node, - GFP_KERNEL | __GFP_ZERO | GFP_THISNODE, + GFP_KERNEL | __GFP_ZERO | __GFP_THISNODE, 0); if (!page) goto out_cleanup; diff --git a/mm/migrate.c b/mm/migrate.c index 482a33d89134..b494fdb9a636 100644 --- a/mm/migrate.c +++ b/mm/migrate.c @@ -1158,7 +1158,7 @@ static struct page *new_page_node(struct page *p, unsigned long private, pm->node); else return alloc_pages_exact_node(pm->node, - GFP_HIGHUSER_MOVABLE | GFP_THISNODE, 0); + GFP_HIGHUSER_MOVABLE | __GFP_THISNODE, 0); } /* @@ -1544,9 +1544,9 @@ static struct page *alloc_misplaced_dst_page(struct page *page, struct page *newpage; newpage = alloc_pages_exact_node(nid, - (GFP_HIGHUSER_MOVABLE | GFP_THISNODE | - __GFP_NOMEMALLOC | __GFP_NORETRY | - __GFP_NOWARN) & + (GFP_HIGHUSER_MOVABLE | + __GFP_THISNODE | __GFP_NOMEMALLOC | + __GFP_NORETRY | __GFP_NOWARN) & ~GFP_IOFS, 0); return newpage; @@ -1747,7 +1747,8 @@ int migrate_misplaced_transhuge_page(struct mm_struct *mm, goto out_dropref; new_page = alloc_pages_node(node, - (GFP_TRANSHUGE | GFP_THISNODE) & ~__GFP_WAIT, HPAGE_PMD_ORDER); + (GFP_TRANSHUGE | __GFP_THISNODE) & ~__GFP_WAIT, + HPAGE_PMD_ORDER); if (!new_page) goto out_fail; -- cgit v1.2.3