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| author | Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> | 2021-11-08 13:33:12 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-22 14:59:13 -0500 |
| commit | 85fb8bb9d4a5bae9d1abd0d21550517a40ba81e9 (patch) | |
| tree | 02282c361b0cd42400e07caa22b704dc432ceb77 /drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | |
| parent | f8fb5cd412e31d6277c5b0107bb37d677107cbc0 (diff) | |
| download | lwn-85fb8bb9d4a5bae9d1abd0d21550517a40ba81e9.tar.gz lwn-85fb8bb9d4a5bae9d1abd0d21550517a40ba81e9.zip | |
drm/amd/display: Run full global validation in dc_commit_state
[Why]
Dynamic link encoder assignment expects that it can modify DC
current_state and the links associated with the incoming state when
performing full validation.
This does not align with our actual synchronization constraints
in DM's atomic_check.
[How]
Since link encoder assignment only happens as part of full validation
we can just use fast validation as part of atomic_check instead.
This satisfy's DC interface requirements and skips the DML calculations
needed for pipe programming - hopefully speeding up things a little bit
to offset the cost of double validation during stream modification.
We already do this as part of dc_commit_updates_for_stream()
with validate_bandwidth(), so extend this to dc_commit_state() as
well.
Reviewed-by: Harry Wentland <Harry.Wentland@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 19 |
1 files changed, 1 insertions, 18 deletions
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c index b2bf77cbd613..3845d7eb737f 100644 --- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c @@ -2307,14 +2307,6 @@ static enum dc_status amdgpu_dm_commit_zero_streams(struct dc *dc) goto fail; } - - res = dc_validate_global_state(dc, context, false); - - if (res != DC_OK) { - DRM_ERROR("%s:resource validation failed, dc_status:%d\n", __func__, res); - goto fail; - } - res = dc_commit_state(dc, context); fail: @@ -2583,15 +2575,6 @@ static int dm_resume(void *handle) = 0xffffffff; } } -#if defined(CONFIG_DRM_AMD_DC_DCN) - /* - * Resource allocation happens for link encoders for newer ASIC in - * dc_validate_global_state, so we need to revalidate it. - * - * This shouldn't fail (it passed once before), so warn if it does. - */ - WARN_ON(dc_validate_global_state(dm->dc, dc_state, false) != DC_OK); -#endif WARN_ON(!dc_commit_state(dm->dc, dc_state)); @@ -11130,7 +11113,7 @@ static int amdgpu_dm_atomic_check(struct drm_device *dev, DRM_DEBUG_DRIVER("drm_dp_mst_atomic_check() failed\n"); goto fail; } - status = dc_validate_global_state(dc, dm_state->context, false); + status = dc_validate_global_state(dc, dm_state->context, true); if (status != DC_OK) { DRM_DEBUG_DRIVER("DC global validation failure: %s (%d)", dc_status_to_str(status), status); |