iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

i915/perf: Disable OA sseu config param for gfx12.50+

Browse Source 
The global sseu config is applicable only to gen11 platforms where
concurrent media, render and OA use cases may cause some subslices to be
turned off and hence lose NOA configuration. Ideally we want to return
ENODEV for non-gen11 platforms, however, this has shipped with gfx12, so
disable only for gfx12.50+.

v2: gfx12 is already shipped with this, disable for gfx12.50+ (Lionel)

v3: (Matt)
- Update commit message and replace "12.5" with "12.50"
- Replace DRM_DEBUG() with driver specific drm_dbg()

Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Acked-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220707193002.2859653-2-umesh.nerlige.ramappa@intel.com
This commit is contained in:
Umesh Nerlige Ramappa 2022-07-07 12:30:02 -07:00 committed by Matt Roper
parent 2fec539112
commit ca437b45ac
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/i915/i915_perf.c
View File

@ -3731,6 +3731,13 @@ static int read_properties_unlocked(struct i915_perf *perf,
case DRM_I915_PERF_PROP_GLOBAL_SSEU: {
struct drm_i915_gem_context_param_sseu user_sseu;
if (GRAPHICS_VER_FULL(perf->i915) >= IP_VER(12, 50)) {
drm_dbg(&perf->i915->drm,
"SSEU config not supported on gfx %x\n",
GRAPHICS_VER_FULL(perf->i915));
return -ENODEV;
}
if (copy_from_user(&user_sseu,
u64_to_user_ptr(value),
sizeof(user_sseu))) {