提交 5c58ab0b 编写于 作者: D Dave Airlie 提交者: Alex Deucher

amdgpu/dc: convert dc_gamma to kref reference counting.

Rolling your own reference counting is frowned upon.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Reviewed-by: NHarry Wentland <harry.wentland@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
上级 93052132
......@@ -129,18 +129,18 @@ void dc_plane_state_release(struct dc_plane_state *plane_state)
void dc_gamma_retain(struct dc_gamma *gamma)
{
ASSERT(atomic_read(&gamma->ref_count) > 0);
atomic_inc(&gamma->ref_count);
kref_get(&gamma->refcount);
}
void dc_gamma_release(struct dc_gamma **gamma)
static void dc_gamma_free(struct kref *kref)
{
ASSERT(atomic_read(&(*gamma)->ref_count) > 0);
atomic_dec(&(*gamma)->ref_count);
if (atomic_read(&(*gamma)->ref_count) == 0)
kfree((*gamma));
struct dc_gamma *gamma = container_of(kref, struct dc_gamma, refcount);
kfree(gamma);
}
void dc_gamma_release(struct dc_gamma **gamma)
{
kref_put(&(*gamma)->refcount, dc_gamma_free);
*gamma = NULL;
}
......@@ -151,8 +151,7 @@ struct dc_gamma *dc_create_gamma()
if (gamma == NULL)
goto alloc_fail;
atomic_inc(&gamma->ref_count);
kref_init(&gamma->refcount);
return gamma;
alloc_fail:
......
......@@ -420,6 +420,7 @@ enum dc_gamma_type {
};
struct dc_gamma {
struct kref refcount;
enum dc_gamma_type type;
unsigned int num_entries;
......@@ -431,9 +432,6 @@ struct dc_gamma {
/* private to DC core */
struct dc_context *ctx;
/* private to dc_surface.c */
atomic_t ref_count;
};
/* Used by both ipp amd opp functions*/
......
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