diff options
author | Thomas Gleixner <tglx@linutronix.de> | 2017-09-13 23:29:21 +0200 |
---|---|---|
committer | Thomas Gleixner <tglx@linutronix.de> | 2017-09-25 20:51:50 +0200 |
commit | 64063505835663c67cf18524c46e1eb70d30fb54 (patch) | |
tree | d9a47f2f6d549d3d1855b71f3e3c02dceae39eaa /arch | |
parent | x86/apic: Move APIC noop specific functions (diff) | |
download | linux-64063505835663c67cf18524c46e1eb70d30fb54.tar.xz linux-64063505835663c67cf18524c46e1eb70d30fb54.zip |
x86/apic: Sanitize 32/64bit APIC callbacks
The 32bit and the 64bit implementation of default_cpu_present_to_apicid()
and default_check_phys_apicid_present() are exactly the same, but
implemented and located differently.
Move them to common apic code and get rid of the pointless difference.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Tested-by: Yu Chen <yu.c.chen@intel.com>
Acked-by: Juergen Gross <jgross@suse.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Alok Kataria <akataria@vmware.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Rui Zhang <rui.zhang@intel.com>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Arjan van de Ven <arjan@linux.intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Len Brown <lenb@kernel.org>
Link: https://lkml.kernel.org/r/20170913213153.757329991@linutronix.de
Diffstat (limited to 'arch')
-rw-r--r-- | arch/x86/include/asm/apic.h | 30 | ||||
-rw-r--r-- | arch/x86/include/asm/kvm_host.h | 2 | ||||
-rw-r--r-- | arch/x86/kernel/apic/Makefile | 2 | ||||
-rw-r--r-- | arch/x86/kernel/apic/apic_common.c | 20 | ||||
-rw-r--r-- | arch/x86/kernel/setup.c | 12 |
5 files changed, 22 insertions, 44 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h index cf10be9afde0..6561ea088b6a 100644 --- a/arch/x86/include/asm/apic.h +++ b/arch/x86/include/asm/apic.h @@ -472,9 +472,6 @@ static inline unsigned default_get_apic_id(unsigned long x) extern void apic_send_IPI_self(int vector); DECLARE_PER_CPU(int, x2apic_extra_bits); - -extern int default_cpu_present_to_apicid(int mps_cpu); -extern int default_check_phys_apicid_present(int phys_apicid); #endif extern void generic_bigsmp_probe(void); @@ -563,35 +560,8 @@ static inline void default_ioapic_phys_id_map(physid_mask_t *phys_map, physid_ma *retmap = *phys_map; } -static inline int __default_cpu_present_to_apicid(int mps_cpu) -{ - if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) - return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); - else - return BAD_APICID; -} - -static inline int -__default_check_phys_apicid_present(int phys_apicid) -{ - return physid_isset(phys_apicid, phys_cpu_present_map); -} - -#ifdef CONFIG_X86_32 -static inline int default_cpu_present_to_apicid(int mps_cpu) -{ - return __default_cpu_present_to_apicid(mps_cpu); -} - -static inline int -default_check_phys_apicid_present(int phys_apicid) -{ - return __default_check_phys_apicid_present(phys_apicid); -} -#else extern int default_cpu_present_to_apicid(int mps_cpu); extern int default_check_phys_apicid_present(int phys_apicid); -#endif #endif /* CONFIG_X86_LOCAL_APIC */ extern void irq_enter(void); diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h index c73e493adf07..9d7d856b2d89 100644 --- a/arch/x86/include/asm/kvm_host.h +++ b/arch/x86/include/asm/kvm_host.h @@ -1419,7 +1419,7 @@ static inline void kvm_arch_vcpu_block_finish(struct kvm_vcpu *vcpu) {} static inline int kvm_cpu_get_apicid(int mps_cpu) { #ifdef CONFIG_X86_LOCAL_APIC - return __default_cpu_present_to_apicid(mps_cpu); + return default_cpu_present_to_apicid(mps_cpu); #else WARN_ON_ONCE(1); return BAD_APICID; diff --git a/arch/x86/kernel/apic/Makefile b/arch/x86/kernel/apic/Makefile index 8e63ebdcbd0b..bd65ce2e768e 100644 --- a/arch/x86/kernel/apic/Makefile +++ b/arch/x86/kernel/apic/Makefile @@ -6,7 +6,7 @@ # In particualr, smp_apic_timer_interrupt() is called in random places. KCOV_INSTRUMENT := n -obj-$(CONFIG_X86_LOCAL_APIC) += apic.o apic_noop.o ipi.o vector.o +obj-$(CONFIG_X86_LOCAL_APIC) += apic.o apic_common.o apic_noop.o ipi.o vector.o obj-y += hw_nmi.o obj-$(CONFIG_X86_IO_APIC) += io_apic.o diff --git a/arch/x86/kernel/apic/apic_common.c b/arch/x86/kernel/apic/apic_common.c new file mode 100644 index 000000000000..2a084d48db37 --- /dev/null +++ b/arch/x86/kernel/apic/apic_common.c @@ -0,0 +1,20 @@ +/* + * Common functions shared between the various APIC flavours + * + * SPDX-License-Identifier: GPL-2.0 + */ +#include <linux/irq.h> +#include <asm/apic.h> + +int default_cpu_present_to_apicid(int mps_cpu) +{ + if (mps_cpu < nr_cpu_ids && cpu_present(mps_cpu)) + return (int)per_cpu(x86_bios_cpu_apicid, mps_cpu); + else + return BAD_APICID; +} + +int default_check_phys_apicid_present(int phys_apicid) +{ + return physid_isset(phys_apicid, phys_cpu_present_map); +} diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 0957dd73d127..82559867e0a9 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -136,18 +136,6 @@ RESERVE_BRK(dmi_alloc, 65536); static __initdata unsigned long _brk_start = (unsigned long)__brk_base; unsigned long _brk_end = (unsigned long)__brk_base; -#ifdef CONFIG_X86_64 -int default_cpu_present_to_apicid(int mps_cpu) -{ - return __default_cpu_present_to_apicid(mps_cpu); -} - -int default_check_phys_apicid_present(int phys_apicid) -{ - return __default_check_phys_apicid_present(phys_apicid); -} -#endif - struct boot_params boot_params; /* |