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drm/amd/display: Reduce stack size of commit_planes_to_stream

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This function likes to blow 1024 stack size when something is
added to the addr struct. For now just dynamically allocate.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Harry Wentland 2017-10-12 14:15:26 -04:00 • committed by Alex Deucher
commit bb16bee4b3
1 changed files with 13 additions and 6 deletions
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19
drivers/gpu/drm/amd/display/dc/core/dc.c
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@ -926,9 +926,9 @@ bool dc_commit_planes_to_stream(
struct dc_state *state)
{
struct dc_surface_update updates[MAX_SURFACES];
struct dc_flip_addrs flip_addr[MAX_SURFACES];
struct dc_plane_info plane_info[MAX_SURFACES];
struct dc_scaling_info scaling_info[MAX_SURFACES];
struct dc_flip_addrs *flip_addr;
struct dc_plane_info *plane_info;
struct dc_scaling_info *scaling_info;
int i;
struct dc_stream_update *stream_update =
kzalloc(sizeof(struct dc_stream_update), GFP_KERNEL);
@ -938,10 +938,14 @@ bool dc_commit_planes_to_stream(
return false;
}
flip_addr = kcalloc(MAX_SURFACES, sizeof(struct dc_flip_addrs),
GFP_KERNEL);
plane_info = kcalloc(MAX_SURFACES, sizeof(struct dc_plane_info),
GFP_KERNEL);
scaling_info = kcalloc(MAX_SURFACES, sizeof(struct dc_scaling_info),
GFP_KERNEL);
memset(updates, 0, sizeof(updates));
memset(flip_addr, 0, sizeof(flip_addr));
memset(plane_info, 0, sizeof(plane_info));
memset(scaling_info, 0, sizeof(scaling_info));
stream_update->src = dc_stream->src;
stream_update->dst = dc_stream->dst;
@ -980,6 +984,9 @@ bool dc_commit_planes_to_stream(
new_plane_count,
dc_stream, stream_update, plane_states, state);
kfree(flip_addr);
kfree(plane_info);
kfree(scaling_info);
kfree(stream_update);
return true;
}