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| author | Mike Travis <mike.travis@hpe.com> | 2019-09-10 09:58:41 -0500 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2019-10-07 13:42:10 +0200 |
| commit | 0959f8256ada0431c1470d89e5a2811ff2305c88 (patch) | |
| tree | 0b5d595b4e302fdf20a41b667295ca6a4a654914 /arch/x86/include/asm/uv | |
| parent | 61e5ddca9c2a312f933bf5b12bc08484189fefe6 (diff) | |
| download | linux-0959f8256ada0431c1470d89e5a2811ff2305c88.tar.bz2 | |
x86/platform/uv: Return UV Hubless System Type
Return the type of UV hubless system for UV specific code that depends
on that. Add a function to convert UV system type to bit pattern needed
for is_uv_hubless().
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Reviewed-by: Steve Wahl <steve.wahl@hpe.com>
Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Hedi Berriche <hedi.berriche@hpe.com>
Cc: Justin Ernst <justin.ernst@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <russ.anderson@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20190910145839.814880843@stormcage.eag.rdlabs.hpecorp.net
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/include/asm/uv')
| -rw-r--r-- | arch/x86/include/asm/uv/uv.h | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/x86/include/asm/uv/uv.h b/arch/x86/include/asm/uv/uv.h index 6bc6d89d8e2a..792faab9df64 100644 --- a/arch/x86/include/asm/uv/uv.h +++ b/arch/x86/include/asm/uv/uv.h @@ -12,6 +12,14 @@ struct mm_struct; #ifdef CONFIG_X86_UV #include <linux/efi.h> +static inline int uv(int uvtype) +{ + /* uv(0) is "any" */ + if (uvtype >= 0 && uvtype <= 30) + return 1 << uvtype; + return 1; +} + extern unsigned long uv_systab_phys; extern enum uv_system_type get_uv_system_type(void); @@ -20,7 +28,7 @@ static inline bool is_early_uv_system(void) return uv_systab_phys && uv_systab_phys != EFI_INVALID_TABLE_ADDR; } extern int is_uv_system(void); -extern int is_uv_hubless(void); +extern int is_uv_hubless(int uvtype); extern void uv_cpu_init(void); extern void uv_nmi_init(void); extern void uv_system_init(void); @@ -32,7 +40,7 @@ extern const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, static inline enum uv_system_type get_uv_system_type(void) { return UV_NONE; } static inline bool is_early_uv_system(void) { return 0; } static inline int is_uv_system(void) { return 0; } -static inline int is_uv_hubless(void) { return 0; } +static inline int is_uv_hubless(int uv) { return 0; } static inline void uv_cpu_init(void) { } static inline void uv_system_init(void) { } static inline const struct cpumask * |