Messages in this thread Patch in this message | | | Date | Wed, 1 Feb 2017 02:12:24 -0800 | From | "tip-bot for " <> | Subject | [tip:x86/platform] x86/platform/UV: Ensure uv_system_init is called when necessary |
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Commit-ID: 9ec808a0225aabab59fb2932b70784b087ac0f58 Gitweb: http://git.kernel.org/tip/9ec808a0225aabab59fb2932b70784b087ac0f58 Author: travis@sgi.com <travis@sgi.com> AuthorDate: Wed, 25 Jan 2017 10:35:23 -0600 Committer: Ingo Molnar <mingo@kernel.org> CommitDate: Wed, 1 Feb 2017 10:21:00 +0100
x86/platform/UV: Ensure uv_system_init is called when necessary
Move the check to whether this is a UV system that needs initialization from is_uv_system() to the internal uv_system_init() function. This is because on a UV system without a HUB the is_uv_system() returns false. But we still need some specific UV system initialization. See the uv_system_init() for change to a quick check if UV is applicable. This change should not increase overhead since is_uv_system() also called into this same area.
Signed-off-by: Mike Travis <travis@sgi.com> Reviewed-by: Russ Anderson <rja@hpe.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Dimitri Sivanich <sivanich@hpe.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/20170125163518.256403963@asylum.americas.sgi.com Signed-off-by: Ingo Molnar <mingo@kernel.org> --- arch/x86/kernel/smpboot.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 46732dc..386c7f7 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -1341,8 +1341,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) pr_info("CPU0: "); print_cpu_info(&cpu_data(0)); - if (is_uv_system()) - uv_system_init(); + uv_system_init(); set_mtrr_aps_delayed_init();
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