diff options
| author |   Dave Airlie <airlied@redhat.com> | 2017-10-03 12:38:59 +1000 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2017-10-06 13:09:34 -0400 |
| commit | 4d090f0fae08ddaccf8caaf707f386d52b7f7a08 (patch) | |
| tree | 01fb316eacae89fa745effa5c3561469a77caa62 /drivers/gpu/drm/amd/display/dc/core/dc_surface.c | |
| parent | amdgpu/dc: convert dc_gamma to kref reference counting. (diff) | |
| download | linux-dev-4d090f0fae08ddaccf8caaf707f386d52b7f7a08.tar.xz linux-dev-4d090f0fae08ddaccf8caaf707f386d52b7f7a08.zip | |
amdgpu/dc: use kref for dc_plane_state.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/core/dc_surface.c')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/core/dc_surface.c | 20 |
1 files changed, 10 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c index 0950075b6c54..d43783a45ab6 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_surface.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_surface.c @@ -71,8 +71,8 @@ struct dc_plane_state *dc_create_plane_state(struct dc *dc) if (NULL == plane_state) return NULL; + kref_init(&plane_state->refcount); construct(core_dc->ctx, plane_state); - atomic_inc(&plane_state->ref_count); return plane_state; } @@ -112,19 +112,19 @@ const struct dc_plane_status *dc_plane_get_status( void dc_plane_state_retain(struct dc_plane_state *plane_state) { - ASSERT(atomic_read(&plane_state->ref_count) > 0); - atomic_inc(&plane_state->ref_count); + kref_get(&plane_state->refcount); } -void dc_plane_state_release(struct dc_plane_state *plane_state) +static void dc_plane_state_free(struct kref *kref) { - ASSERT(atomic_read(&plane_state->ref_count) > 0); - atomic_dec(&plane_state->ref_count); + struct dc_plane_state *plane_state = container_of(kref, struct dc_plane_state, refcount); + destruct(plane_state); + kfree(plane_state); +} - if (atomic_read(&plane_state->ref_count) == 0) { - destruct(plane_state); - kfree(plane_state); - } +void dc_plane_state_release(struct dc_plane_state *plane_state) +{ + kref_put(&plane_state->refcount, dc_plane_state_free); } void dc_gamma_retain(struct dc_gamma *gamma) |