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drm/amd/display: Do Not Fallback To SW Cursor If HW Cursor Required

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[Why/How]
Tearing can occur if there is a flip immediate plane and SW cursor.
check_subvp_sw_cursor_fallback_req falls back to SW cursor if the
stream has the potential to use subVP.
Check for fallback not needed if HW cursor is required.
e.g. Fullscreen gaming

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Austin Zheng
2024-10-18 14:55:21 -04:00
committed by Alex Deucher
parent b95264cf75
commit d29bd94c4f
1 changed files with 3 additions and 1 deletions
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4
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@@ -292,7 +292,9 @@ bool dc_stream_set_cursor_attributes(
* 2. If not subvp high refresh, for single display cases, if resolution is >= 5K and refresh rate < 120hz
* 3. If not subvp high refresh, for multi display cases, if resolution is >= 4K and refresh rate < 120hz
*/
if (dc->debug.allow_sw_cursor_fallback && attributes->height * attributes->width * 4 > 16384) {
if (dc->debug.allow_sw_cursor_fallback &&
attributes->height * attributes->width * 4 > 16384 &&
!stream->hw_cursor_req) {
if (check_subvp_sw_cursor_fallback_req(dc, stream))
return false;
}