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| author | Arun R Murthy <arun.r.murthy@intel.com> | 2022-09-06 07:18:06 +0300 |
|---|---|---|
| committer | Animesh Manna <animesh.manna@intel.com> | 2023-05-22 15:14:38 +0300 |
| commit | 937859485aefed1d9df72feb6ea74a84ff5cfa46 (patch) | |
| tree | 47ef3b1a7b27f414586a27ff048770631716cc8e | |
| parent | 861601ff7f757f34f0584dc1f78ebb7a1f541e77 (diff) | |
| download | linux-937859485aefed1d9df72feb6ea74a84ff5cfa46.tar.xz | |
drm/i915: Support Async Flip on Linear buffers
Starting from Gen12 Async Flip is supported on linear buffers.
This patch enables support for async on linear buffer.
UseCase: In Hybrid graphics, for hardware unsupported pixel formats it
will be converted to linear memory and then composed.
v2: Added use case
v3: Added FIXME for ICL indicating the restrictions
Signed-off-by: Arun R Murthy <arun.r.murthy@intel.com>
Reviewed-by: Stanislav Lisovskiy <stanislav.lisovskiy@intel.com>
Signed-off-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220906041806.4095575-1-arun.r.murthy@intel.com
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c index 09320e14d75c..0490c6412ab5 100644 --- a/drivers/gpu/drm/i915/display/intel_display.c +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -5995,6 +5995,20 @@ static int intel_async_flip_check_hw(struct intel_atomic_state *state, struct in * this selectively if required. */ switch (new_plane_state->hw.fb->modifier) { + case DRM_FORMAT_MOD_LINEAR: + /* + * FIXME: Async on Linear buffer is supported on ICL as + * but with additional alignment and fbc restrictions + * need to be taken care of. These aren't applicable for + * gen12+. + */ + if (DISPLAY_VER(i915) < 12) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Modifier does not support async flips\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + case I915_FORMAT_MOD_X_TILED: case I915_FORMAT_MOD_Y_TILED: case I915_FORMAT_MOD_Yf_TILED: |