Commit-ID: 51b146c572201e3c368e0baa3e565760aefcf25f Gitweb: https://git.kernel.org/tip/51b146c572201e3c368e0baa3e565760aefcf25f Author: Baoquan He <b...@redhat.com> AuthorDate: Wed, 14 Feb 2018 13:46:55 +0800 Committer: Ingo Molnar <mi...@kernel.org> CommitDate: Sat, 17 Feb 2018 11:47:45 +0100
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 <b...@redhat.com> Reviewed-by: Eric W. Biederman <ebied...@xmission.com> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Cc: douly.f...@cn.fujitsu.com Cc: j...@8bytes.org Cc: pra...@redhat.com Cc: uober...@redhat.com Link: http://lkml.kernel.org/r/20180214054656.3780-6-...@redhat.com [ Rewrote the changelog. ] Signed-off-by: Ingo Molnar <mi...@kernel.org> --- arch/x86/include/asm/io_apic.h | 6 +++--- arch/x86/include/asm/x86_init.h | 8 ++++---- arch/x86/kernel/apic/io_apic.c | 4 ++-- arch/x86/kernel/x86_init.c | 6 +++--- arch/x86/xen/apic.c | 2 +- drivers/iommu/irq_remapping.c | 4 ++-- 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 8018fc4..fd20a23 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 fc2f082..8830605 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 9d86b10..68129f1 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 1151ccd..2bccd03 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 de58533..2163888 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 49721b4..496deee 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)
