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| author | Andrzej Hajda <andrzej.hajda@intel.com> | 2023-01-27 16:30:02 +0100 |
|---|---|---|
| committer | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2023-01-30 16:54:02 +0200 |
| commit | 9d691c197631f152d7dc6788098f372b64d3bc43 (patch) | |
| tree | bc25d4b1b2cdb71dfcb9f9f1d3f581714662a49e /drivers/gpu/drm/i915/display/intel_atomic_plane.c | |
| parent | c22cf04c6ab1d9ad5be2ec36e9822bc45526e8ca (diff) | |
| download | linux-9d691c197631f152d7dc6788098f372b64d3bc43.tar.gz linux-9d691c197631f152d7dc6788098f372b64d3bc43.tar.bz2 linux-9d691c197631f152d7dc6788098f372b64d3bc43.zip | |
drm/i915: implement async_flip mode per plane tracking
Current implementation of async flip w/a relies on assumption that
previous atomic commit contains valid information if async_flip is still
enabled on the plane. It is incorrect. If previous commit did not modify
the plane its state->uapi.async_flip can be false. As a result DMAR/PIPE
errors can be observed:
i915 0000:00:02.0: [drm] *ERROR* Fault errors on pipe A: 0x00000080
i915 0000:00:02.0: [drm] *ERROR* Fault errors on pipe A: 0x00000080
DMAR: DRHD: handling fault status reg 2
DMAR: [DMA Read NO_PASID] Request device [00:02.0] fault addr 0x0 [fault reason 0x06] PTE Read access is not set
v2: update async_flip_planes in more reliable places (Ville)
v3: reset async_flip_planes and do_async_flip in more scenarios (Ville)
v4: move all resets to plane loops (Ville)
Signed-off-by: Andrzej Hajda <andrzej.hajda@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230127153003.2225111-1-andrzej.hajda@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_atomic_plane.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic_plane.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic_plane.c b/drivers/gpu/drm/i915/display/intel_atomic_plane.c index 1409bcfb6fd3..3bd8f7eb75a6 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic_plane.c +++ b/drivers/gpu/drm/i915/display/intel_atomic_plane.c @@ -363,6 +363,7 @@ void intel_plane_set_invisible(struct intel_crtc_state *crtc_state, crtc_state->scaled_planes &= ~BIT(plane->id); crtc_state->nv12_planes &= ~BIT(plane->id); crtc_state->c8_planes &= ~BIT(plane->id); + crtc_state->async_flip_planes &= ~BIT(plane->id); crtc_state->data_rate[plane->id] = 0; crtc_state->data_rate_y[plane->id] = 0; crtc_state->rel_data_rate[plane->id] = 0; @@ -582,8 +583,10 @@ static int intel_plane_atomic_calc_changes(const struct intel_crtc_state *old_cr intel_plane_is_scaled(new_plane_state)))) new_crtc_state->disable_lp_wm = true; - if (intel_plane_do_async_flip(plane, old_crtc_state, new_crtc_state)) + if (intel_plane_do_async_flip(plane, old_crtc_state, new_crtc_state)) { new_crtc_state->do_async_flip = true; + new_crtc_state->async_flip_planes |= BIT(plane->id); + } return 0; } |