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gpu: nvgpu: Replace kref for refcounting in nvgpu

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- added wrapper struct nvgpu_ref over nvgpu_atomic_t
- added nvgpu_ref_* APIs to access the above struct

JIRA NVGPU-140

Change-Id: Id47f897995dd4721751f7610b6d4d4fbfe4d6b9a
Signed-off-by: Debarshi Dutta <ddutta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1540899
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Konsta Holtta <kholtta@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
This commit is contained in:
Debarshi Dutta
2017-08-08 12:08:03 +05:30
committed by mobile promotions
parent 8662fae334
commit 3fa47b877d
25 changed files with 176 additions and 98 deletions
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16
drivers/gpu/nvgpu/common/semaphore.c
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@@ -156,7 +156,7 @@ struct nvgpu_semaphore_pool *nvgpu_semaphore_pool_alloc(
p->sema_sea = sea;
nvgpu_init_list_node(&p->hw_semas);
nvgpu_init_list_node(&p->pool_list_entry);
kref_init(&p->ref);
nvgpu_ref_init(&p->ref);
sea->page_count++;
nvgpu_list_add(&p->pool_list_entry, &sea->pool_list);
@@ -285,7 +285,7 @@ void nvgpu_semaphore_pool_unmap(struct nvgpu_semaphore_pool *p,
* Completely free a semaphore_pool. You should make sure this pool is not
* mapped otherwise there's going to be a memory leak.
*/
static void nvgpu_semaphore_pool_free(struct kref *ref)
static void nvgpu_semaphore_pool_free(struct nvgpu_ref *ref)
{
struct nvgpu_semaphore_pool *p =
container_of(ref, struct nvgpu_semaphore_pool, ref);
@@ -314,12 +314,12 @@ static void nvgpu_semaphore_pool_free(struct kref *ref)
void nvgpu_semaphore_pool_get(struct nvgpu_semaphore_pool *p)
{
kref_get(&p->ref);
nvgpu_ref_get(&p->ref);
}
void nvgpu_semaphore_pool_put(struct nvgpu_semaphore_pool *p)
{
kref_put(&p->ref, nvgpu_semaphore_pool_free);
nvgpu_ref_put(&p->ref, nvgpu_semaphore_pool_free);
}
/*
@@ -423,7 +423,7 @@ struct nvgpu_semaphore *nvgpu_semaphore_alloc(struct channel_gk20a *ch)
if (!s)
return NULL;
kref_init(&s->ref);
nvgpu_ref_init(&s->ref);
s->hw_sema = ch->hw_sema;
nvgpu_atomic_set(&s->value, 0);
@@ -438,7 +438,7 @@ struct nvgpu_semaphore *nvgpu_semaphore_alloc(struct channel_gk20a *ch)
return s;
}
static void nvgpu_semaphore_free(struct kref *ref)
static void nvgpu_semaphore_free(struct nvgpu_ref *ref)
{
struct nvgpu_semaphore *s =
container_of(ref, struct nvgpu_semaphore, ref);
@@ -450,10 +450,10 @@ static void nvgpu_semaphore_free(struct kref *ref)
void nvgpu_semaphore_put(struct nvgpu_semaphore *s)
{
kref_put(&s->ref, nvgpu_semaphore_free);
nvgpu_ref_put(&s->ref, nvgpu_semaphore_free);
}
void nvgpu_semaphore_get(struct nvgpu_semaphore *s)
{
kref_get(&s->ref);
nvgpu_ref_get(&s->ref);
}