From: Wenjing Liu <wenjing.liu@xxxxxxx>
[why]
MAX_SURFACES is per stream, while MAX_PLANES is per asic. The
mpc_combine is an array that records all the planes per asic. Therefore
MAX_PLANES should be used as the array size. Using MAX_SURFACES causes
array overflow when there are more than 3 planes.
[how]
Use the MAX_PLANES for the mpc_combine array size.
Cc: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@xxxxxxx>
Reviewed-by: Nevenko Stupar <nevenko.stupar@xxxxxxx>
Reviewed-by: Chaitanya Dhere <chaitanya.dhere@xxxxxxx>
Acked-by: Tom Chung <chiahsuan.chung@xxxxxxx>
Signed-off-by: Wenjing Liu <wenjing.liu@xxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 9b80f65c0466..a7981a0c4158 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -1113,7 +1113,7 @@ struct pipe_slice_table {
struct pipe_ctx *pri_pipe;
struct dc_plane_state *plane;
int slice_count;
- } mpc_combines[MAX_SURFACES];
+ } mpc_combines[MAX_PLANES];
int mpc_combine_count;
};
--
2.34.1
