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| author | Mike Travis <mike.travis@hpe.com> | 2018-01-08 20:40:01 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-01-16 03:58:37 +0100 |
| commit | 8078d1951da228e20dc36f83306845a565f51345 (patch) | |
| tree | 50c3a5fcad8503fe8a9ae75065ade088d6350061 /arch/x86/kernel/apic | |
| parent | x86/platform/UV: Fix UV4A support on new Intel Processors (diff) | |
| download | linux-8078d1951da228e20dc36f83306845a565f51345.tar.xz linux-8078d1951da228e20dc36f83306845a565f51345.zip | |
x86/platform/UV: Add references to access fixed UV4A HUB MMRs
Add references to enable access to fixed UV4A (rev2) HUB MMRs.
Signed-off-by: Mike Travis <mike.travis@hpe.com>
Acked-by: Andrew Banman <abanman@hpe.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Dimitri Sivanich <sivanich@hpe.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Russ Anderson <rja@hpe.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1515440405-20880-4-git-send-email-mike.travis@hpe.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/x86/kernel/apic')
| -rw-r--r-- | arch/x86/kernel/apic/x2apic_uv_x.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c index ebb7d264bcac..2ddc140c23fe 100644 --- a/arch/x86/kernel/apic/x2apic_uv_x.c +++ b/arch/x86/kernel/apic/x2apic_uv_x.c @@ -137,6 +137,8 @@ static int __init early_get_pnodeid(void) case UV3_HUB_PART_NUMBER_X: uv_min_hub_revision_id += UV3_HUB_REVISION_BASE; break; + + /* Update: UV4A has only a modified revision to indicate HUB fixes */ case UV4_HUB_PART_NUMBER: uv_min_hub_revision_id += UV4_HUB_REVISION_BASE - 1; uv_cpuid.gnode_shift = 2; /* min partition is 4 sockets */ |