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drm/amd/display: Fix RMCM programming seq errors

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commit 158f9944ac05dafd2d3a23d0688e6cf40ef68b90 upstream.

[WHY & HOW]
Fix RMCM programming sequence errors and mapping issues to pass the RMCM
test.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Signed-off-by: Yihan Zhu <Yihan.Zhu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 11baa4975025033547f45f5894087a0dda6efbb8)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Yihan Zhu
2025-05-27 16:47:40 -04:00
committed by Greg Kroah-Hartman
parent 57f1ed963c
commit ba1ffc32bd
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_core/dml2_core_dcn4_calcs.c
View File

@@ -4651,7 +4651,10 @@ static void calculate_tdlut_setting(
//the tdlut is fetched during the 2 row times of prefetch.
if (p->setup_for_tdlut) {
*p->tdlut_groups_per_2row_ub = (unsigned int)math_ceil2((double) *p->tdlut_bytes_per_frame / *p->tdlut_bytes_per_group, 1);
*p->tdlut_opt_time = (*p->tdlut_bytes_per_frame - p->cursor_buffer_size * 1024) / tdlut_drain_rate;
if (*p->tdlut_bytes_per_frame > p->cursor_buffer_size * 1024)
*p->tdlut_opt_time = (*p->tdlut_bytes_per_frame - p->cursor_buffer_size * 1024) / tdlut_drain_rate;
else
*p->tdlut_opt_time = 0;
*p->tdlut_drain_time = p->cursor_buffer_size * 1024 / tdlut_drain_rate;
}