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drm/amd/display: fix dml ms order of operations

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[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>
This commit is contained in:
Ausef Yousof
2025-09-02 12:10:18 -04:00
committed by Alex Deucher
parent 29591e6fd4
commit 02a6c2e4b2
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/dml2/display_mode_core.c
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@@ -6529,7 +6529,7 @@ static noinline_for_stack void dml_prefetch_check(struct display_mode_lib_st *mo
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 {