drm/xe: Raise GT frequency before GuC/HuC load

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Starting GT freq is usually RPn. Raising freq to RP0 will
help speed up GuC load times. As an example, this data was
collected on DG2-

GuC Load time @RPn ~ 41 ms
GuC Load time @RP0 ~ 11 ms

v2: Raise GT freq before hwconfig init. This will speed up
both HuC and GuC loads. Address review comments (Rodrigo).
Also add a small usleep after requesting frequency which gives
pcode some time to react.

v3: Address checkpatch issue

Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Vinay Belgaumkar <vinay.belgaumkar@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

...

This commit is contained in:

Vinay Belgaumkar 2023-11-13 11:44:02 -08:00 • committed by Rodrigo Vivi

parent 08987a8b68

commit 43efd3ba9f

4 changed files with 57 additions and 2 deletions

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5

drivers/gpu/drm/xe/regs/xe_gt_regs.h

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4

drivers/gpu/drm/xe/xe_gt.c

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49

drivers/gpu/drm/xe/xe_guc_pc.c

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1

drivers/gpu/drm/xe/xe_guc_pc.h

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