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| author | Daniel J Blueman <[email protected]> | 2015-09-20 17:02:01 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2015-09-22 20:25:33 +0000 |
| commit | ad03a9c25d258641556c7198e26fd882c741987a (patch) | |
| tree | 85fcadef16de050cece52c20161076c11ff472e0 /drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | |
| parent | x86/numachip: Add Numachip2 APIC support (diff) | |
| download | kernel-ad03a9c25d258641556c7198e26fd882c741987a.tar.gz kernel-ad03a9c25d258641556c7198e26fd882c741987a.zip | |
x86/numachip: Add Numachip IPI optimisations
When sending IPIs, first check if the non-local part of the source and
destination APIC IDs match; if so, send via the local APIC for efficiency.
Secondly, since the AMD BIOS-kernel developer guide states IPI delivery
will occur invarient of prior deliver status, avoid polling the delivery
status bit for efficiency.
Signed-off-by: Daniel J Blueman <[email protected]>
Acked-by: Steffen Persvold <[email protected]>
Cc: Daniel Lezcano <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c')
0 files changed, 0 insertions, 0 deletions