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authorBaoquan He <bhe@redhat.com>2018-02-14 13:46:55 +0800
committerIngo Molnar <mingo@kernel.org>2018-02-17 11:47:45 +0100
commit51b146c572201e3c368e0baa3e565760aefcf25f (patch)
tree8f0cc9152fcefb4ea9201970d75af2bbf7357882
parent50374b96d2d30c03c8d42b3f8846d8938748d454 (diff)
x86/apic: Rename variables and functions related to x86_io_apic_ops
The names of x86_io_apic_ops and its two member variables are misleading: The ->read() member is to read IO_APIC reg, while ->disable() which is called by native_disable_io_apic()/irq_remapping_disable_io_apic() is actually used to restore boot IRQ mode, not to disable the IO-APIC. So rename x86_io_apic_ops to 'x86_apic_ops' since it doesn't only handle the IO-APIC, but also the local APIC. Also rename its member variables and the related callbacks. Signed-off-by: Baoquan He <bhe@redhat.com> Reviewed-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: douly.fnst@cn.fujitsu.com Cc: joro@8bytes.org Cc: prarit@redhat.com Cc: uobergfe@redhat.com Link: http://lkml.kernel.org/r/20180214054656.3780-6-bhe@redhat.com [ Rewrote the changelog. ] Signed-off-by: Ingo Molnar <mingo@kernel.org>
-rw-r--r--arch/x86/include/asm/io_apic.h6
-rw-r--r--arch/x86/include/asm/x86_init.h8
-rw-r--r--arch/x86/kernel/apic/io_apic.c4
-rw-r--r--arch/x86/kernel/x86_init.c6
-rw-r--r--arch/x86/xen/apic.c2
-rw-r--r--drivers/iommu/irq_remapping.c4
6 files changed, 15 insertions, 15 deletions
diff --git a/arch/x86/include/asm/io_apic.h b/arch/x86/include/asm/io_apic.h
index 8018fc48f18d..fd20a2334885 100644
--- a/arch/x86/include/asm/io_apic.h
+++ b/arch/x86/include/asm/io_apic.h
@@ -183,11 +183,11 @@ extern void disable_ioapic_support(void);
extern void __init io_apic_init_mappings(void);
extern unsigned int native_io_apic_read(unsigned int apic, unsigned int reg);
-extern void native_disable_io_apic(void);
+extern void native_restore_boot_irq_mode(void);
static inline unsigned int io_apic_read(unsigned int apic, unsigned int reg)
{
- return x86_io_apic_ops.read(apic, reg);
+ return x86_apic_ops.io_apic_read(apic, reg);
}
extern void setup_IO_APIC(void);
@@ -229,7 +229,7 @@ static inline void mp_save_irq(struct mpc_intsrc *m) { }
static inline void disable_ioapic_support(void) { }
static inline void io_apic_init_mappings(void) { }
#define native_io_apic_read NULL
-#define native_disable_io_apic NULL
+#define native_restore_boot_irq_mode NULL
static inline void setup_IO_APIC(void) { }
static inline void enable_IO_APIC(void) { }
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index fc2f082ac635..88306054bd98 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -274,16 +274,16 @@ struct x86_msi_ops {
void (*restore_msi_irqs)(struct pci_dev *dev);
};
-struct x86_io_apic_ops {
- unsigned int (*read) (unsigned int apic, unsigned int reg);
- void (*disable)(void);
+struct x86_apic_ops {
+ unsigned int (*io_apic_read) (unsigned int apic, unsigned int reg);
+ void (*restore)(void);
};
extern struct x86_init_ops x86_init;
extern struct x86_cpuinit_ops x86_cpuinit;
extern struct x86_platform_ops x86_platform;
extern struct x86_msi_ops x86_msi;
-extern struct x86_io_apic_ops x86_io_apic_ops;
+extern struct x86_apic_ops x86_apic_ops;
extern void x86_early_init_platform_quirks(void);
extern void x86_init_noop(void);
diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
index 9d86b10c2121..68129f11e7db 100644
--- a/arch/x86/kernel/apic/io_apic.c
+++ b/arch/x86/kernel/apic/io_apic.c
@@ -1410,7 +1410,7 @@ void __init enable_IO_APIC(void)
clear_IO_APIC();
}
-void native_disable_io_apic(void)
+void native_restore_boot_irq_mode(void)
{
/*
* If the i8259 is routed through an IOAPIC
@@ -1443,7 +1443,7 @@ void restore_boot_irq_mode(void)
if (!nr_legacy_irqs())
return;
- x86_io_apic_ops.disable();
+ x86_apic_ops.restore();
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 1151ccd72ce9..2bccd03bd654 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -146,7 +146,7 @@ void arch_restore_msi_irqs(struct pci_dev *dev)
}
#endif
-struct x86_io_apic_ops x86_io_apic_ops __ro_after_init = {
- .read = native_io_apic_read,
- .disable = native_disable_io_apic,
+struct x86_apic_ops x86_apic_ops __ro_after_init = {
+ .io_apic_read = native_io_apic_read,
+ .restore = native_restore_boot_irq_mode,
};
diff --git a/arch/x86/xen/apic.c b/arch/x86/xen/apic.c
index de58533d3664..2163888497d3 100644
--- a/arch/x86/xen/apic.c
+++ b/arch/x86/xen/apic.c
@@ -215,7 +215,7 @@ static void __init xen_apic_check(void)
}
void __init xen_init_apic(void)
{
- x86_io_apic_ops.read = xen_io_apic_read;
+ x86_apic_ops.io_apic_read = xen_io_apic_read;
/* On PV guests the APIC CPUID bit is disabled so none of the
* routines end up executing. */
if (!xen_initial_domain())
diff --git a/drivers/iommu/irq_remapping.c b/drivers/iommu/irq_remapping.c
index 49721b4e1975..496deee3ae3a 100644
--- a/drivers/iommu/irq_remapping.c
+++ b/drivers/iommu/irq_remapping.c
@@ -27,7 +27,7 @@ int disable_irq_post = 0;
static int disable_irq_remap;
static struct irq_remap_ops *remap_ops;
-static void irq_remapping_disable_io_apic(void)
+static void irq_remapping_restore_boot_irq_mode(void)
{
/*
* With interrupt-remapping, for now we will use virtual wire A
@@ -42,7 +42,7 @@ static void irq_remapping_disable_io_apic(void)
static void __init irq_remapping_modify_x86_ops(void)
{
- x86_io_apic_ops.disable = irq_remapping_disable_io_apic;
+ x86_apic_ops.restore = irq_remapping_restore_boot_irq_mode;
}
static __init int setup_nointremap(char *str)