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| author | Ausef Yousof <Ausef.Yousof@amd.com> | 2025-09-02 12:10:18 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-13 15:34:24 -0500 |
| commit | bf3b34614f5e93b47039307b69e81dc4010a7f36 (patch) | |
| tree | e2b500c8e59bfd52f98a7c52329998eeb0b768b2 /drivers/gpu | |
| parent | acf23b42132cc1a0aa17fc16a2227d7952cb512a (diff) | |
| download | linux-bf3b34614f5e93b47039307b69e81dc4010a7f36.tar.gz linux-bf3b34614f5e93b47039307b69e81dc4010a7f36.tar.bz2 linux-bf3b34614f5e93b47039307b69e81dc4010a7f36.zip | |
drm/amd/display: fix dml ms order of operations
[ Upstream commit 02a6c2e4b28ff31f7a904c196a99fb2efe81e2cf ]
[why&how]
small error in order of operations in immediateflipbytes
calculation on dml ms side that can result in dml ms
and mp mismatch immediateflip support for a given pipe
and thus an invalid hw state, correct the order to align
with mp.
Reviewed-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Ausef Yousof <Ausef.Yousof@amd.com>
Signed-off-by: Ray Wu <ray.wu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c index 6822b0795120..d0b7fae7d73c 100644 --- a/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c +++ b/drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c @@ -6527,7 +6527,7 @@ static void dml_prefetch_check(struct display_mode_lib_st *mode_lib) mode_lib->ms.TotImmediateFlipBytes = 0; for (k = 0; k <= mode_lib->ms.num_active_planes - 1; k++) { if (!(mode_lib->ms.policy.ImmediateFlipRequirement[k] == dml_immediate_flip_not_required)) { - mode_lib->ms.TotImmediateFlipBytes = mode_lib->ms.TotImmediateFlipBytes + mode_lib->ms.NoOfDPP[j][k] * mode_lib->ms.PDEAndMetaPTEBytesPerFrame[j][k] + mode_lib->ms.MetaRowBytes[j][k]; + mode_lib->ms.TotImmediateFlipBytes = mode_lib->ms.TotImmediateFlipBytes + mode_lib->ms.NoOfDPP[j][k] * (mode_lib->ms.PDEAndMetaPTEBytesPerFrame[j][k] + mode_lib->ms.MetaRowBytes[j][k]); if (mode_lib->ms.use_one_row_for_frame_flip[j][k]) { mode_lib->ms.TotImmediateFlipBytes = mode_lib->ms.TotImmediateFlipBytes + mode_lib->ms.NoOfDPP[j][k] * (2 * mode_lib->ms.DPTEBytesPerRow[j][k]); } else { |