From: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
[Why&How]
When calculating allocation for cursor size, get the real cursor through
the HUBP instead of using the maximum cursor size for more optimal
allocation
Reviewed-by: Alvin Lee <Alvin.Lee2@xxxxxxx>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@xxxxxxx>
Acked-by: Brian Chang <Brian.Chang@xxxxxxx>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@xxxxxxx>
---
.../gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c | 15 ++++++++++++++-
1 file changed, 14 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
index a54cb79e7ba0..2d428ec48e24 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn32/dcn32_hwseq.c
@@ -295,7 +295,20 @@ static uint32_t dcn32_calculate_cab_allocation(struct dc *dc, struct dc_state *c
}
// Include cursor size for CAB allocation
- cursor_size = dc->caps.max_cursor_size * dc->caps.max_cursor_size;
+ for (i = 0; i < dc->res_pool->pipe_count; i++) {
+ struct pipe_ctx *pipe = &ctx->res_ctx.pipe_ctx[i];
+ struct hubp *hubp = pipe->plane_res.hubp;
+
+ if (pipe->stream && pipe->plane_state && hubp)
+ /* Find the cursor plane and use the exact size instead of
+ * using the max for calculation
+ */
+ if (hubp->curs_attr.width > 0) {
+ cursor_size = hubp->curs_attr.width * hubp->curs_attr.height;
+ break;
+ }
+ }
+
switch (stream->cursor_attributes.color_format) {
case CURSOR_MODE_MONO:
cursor_size /= 2;
--
2.25.1
