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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 09:37:09 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 09:37:09 -0800
commit164f59000c19fa1ee5d09327a8055ec9f9b9905a (patch)
treec613bd29f5489ebbd85a767fe789332983976d66 /arch/microblaze/pci/iomap.c
parent7d62159919c90fbcd9ee808e9f1b776eae990d53 (diff)
parent5cfe469c2654c3a4dda8504b1209abdd8b379e95 (diff)
Merge tag 'microblaze-v6.2' of git://git.monstr.eu/linux-2.6-microblaze
Pull microblaze updates from Michal Simek: "Clean up PCI support which was pretty much copied and pasted from PowerPC long time ago for one custom platform which is not available for years. Also, the Xilinx/AMD PCIe team tested Microblaze with IP cores also used on ARM SOCs and clean up Microblaze code" * tag 'microblaze-v6.2' of git://git.monstr.eu/linux-2.6-microblaze: microblaze/PCI: Moving PCI iounmap and dependent code microblaze/PCI: Remove support for Xilinx PCI host bridge microblaze/PCI: Remove unused pci_iobar_pfn() and et al declarations microblaze/PCI: Remove unused sys_pciconfig_iobase() and et al declaration microblaze/PCI: Remove unused pci_address_to_pio() conversion of CPU address to I/O port microblaze/PCI: Remove unused PCI Indirect ops microblaze/PCI: Remove unused PCI BIOS resource allocation microblaze/PCI: Remove unused allocation & free of PCI host bridge structure microblaze/PCI: Remove unused device tree parsing for a host bridge resources microblaze/PCI: Remove unused PCI legacy IO's access on a bus microblaze/PCI: Remove unused PCI bus scan if configured as a host microblaze/PCI: Remove Null PCI config access unused functions microblaze/PCI: Remove unused early_read_config_byte() et al declarations
Diffstat (limited to 'arch/microblaze/pci/iomap.c')
-rw-r--r--arch/microblaze/pci/iomap.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
index bde74af4c1cd..b2ee8ace9b6e 100644
--- a/arch/microblaze/pci/iomap.c
+++ b/arch/microblaze/pci/iomap.c
@@ -11,6 +11,42 @@
#include <linux/io.h>
#include <asm/pci-bridge.h>
+static DEFINE_SPINLOCK(hose_spinlock);
+LIST_HEAD(hose_list);
+
+unsigned long isa_io_base;
+EXPORT_SYMBOL(isa_io_base);
+
+static resource_size_t pcibios_io_size(const struct pci_controller *hose)
+{
+ return resource_size(&hose->io_resource);
+}
+
+int pcibios_vaddr_is_ioport(void __iomem *address)
+{
+ int ret = 0;
+ struct pci_controller *hose;
+ resource_size_t size;
+
+ spin_lock(&hose_spinlock);
+ list_for_each_entry(hose, &hose_list, list_node) {
+ size = pcibios_io_size(hose);
+ if (address >= hose->io_base_virt &&
+ address < (hose->io_base_virt + size)) {
+ ret = 1;
+ break;
+ }
+ }
+ spin_unlock(&hose_spinlock);
+ return ret;
+}
+
+/* Display the domain number in /proc */
+int pci_proc_domain(struct pci_bus *bus)
+{
+ return pci_domain_nr(bus);
+}
+
void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
{
if (isa_vaddr_is_ioport(addr))