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drm/amd/display: Fallback to SW cursor if SubVP + cursor too big

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[Description]
- For SubVP cursor cannot be cached in MALL, therefore
we will switch to SW cursor if the cursor size exceeds
what can fit in the local DCN buffers (64x64x4)
- Returning false / failure for set_cursor_attributes will
fallback to SW cursor

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2022-07-14 18:21:28 -04:00 committed by Alex Deucher
parent ee4a26b4ea
commit a4f1b04216
1 changed files with 5 additions and 0 deletions
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5
drivers/gpu/drm/amd/display/dc/core/dc_stream.c
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@ -328,6 +328,11 @@ bool dc_stream_set_cursor_attributes(
}
dc = stream->ctx->dc;
if (attributes->height * attributes->width * 4 > 16384)
if (stream->mall_stream_config.type == SUBVP_MAIN)
return false;
stream->cursor_attributes = *attributes;
dc_z10_restore(dc);