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drm/amdgpu: Optimization of AMDGPU_BO_LIST_OP_CREATE (v2) 

v2: Remove duplication of zeroing of bo list (Christian König)
    Move idr_alloc function to end of ioctl (Christian König)
    Call kfree bo_list when amdgpu_bo_list_set return error.
    Combine the previous two patches into this patch.
    Add amdgpu_bo_list_set function prototype.

Signed-off-by: Alex Xie <AlexBin.Xie@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Xie 2017-06-16 00:23:41 -04:00 committed by Alex Deucher
parent 660e855813
commit 99eea4df90
1 changed files with 30 additions and 23 deletions
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53
drivers/gpu/drm/amd/amdgpu/amdgpu_bo_list.c
View File

@ -35,33 +35,45 @@
#define AMDGPU_BO_LIST_MAX_PRIORITY 32u
#define AMDGPU_BO_LIST_NUM_BUCKETS (AMDGPU_BO_LIST_MAX_PRIORITY + 1)
static int amdgpu_bo_list_create(struct amdgpu_fpriv *fpriv,
struct amdgpu_bo_list **result,
static int amdgpu_bo_list_set(struct amdgpu_device *adev,
struct drm_file *filp,
struct amdgpu_bo_list *list,
struct drm_amdgpu_bo_list_entry *info,
unsigned num_entries);
static int amdgpu_bo_list_create(struct amdgpu_device *adev,
struct drm_file *filp,
struct drm_amdgpu_bo_list_entry *info,
unsigned num_entries,
int *id)
{
int r;
struct amdgpu_fpriv *fpriv = filp->driver_priv;
struct amdgpu_bo_list *list;
*result = kzalloc(sizeof(struct amdgpu_bo_list), GFP_KERNEL);
if (!*result)
list = kzalloc(sizeof(struct amdgpu_bo_list), GFP_KERNEL);
if (!list)
return -ENOMEM;
/* initialize bo list*/
mutex_init(&list->lock);
r = amdgpu_bo_list_set(adev, filp, list, info, num_entries);
if (r) {
kfree(list);
return r;
}
/* idr alloc should be called only after initialization of bo list. */
mutex_lock(&fpriv->bo_list_lock);
r = idr_alloc(&fpriv->bo_list_handles, *result,
1, 0, GFP_KERNEL);
if (r < 0) {
r = idr_alloc(&fpriv->bo_list_handles, list, 1, 0, GFP_KERNEL);
mutex_unlock(&fpriv->bo_list_lock);
kfree(*result);
if (r < 0) {
kfree(list);
return r;
}
*id = r;
mutex_init(&(*result)->lock);
(*result)->num_entries = 0;
(*result)->array = NULL;
mutex_lock(&(*result)->lock);
mutex_unlock(&fpriv->bo_list_lock);
return 0;
}
@ -77,6 +89,7 @@ static void amdgpu_bo_list_destroy(struct amdgpu_fpriv *fpriv, int id)
mutex_unlock(&list->lock);
amdgpu_bo_list_free(list);
}
mutex_unlock(&fpriv->bo_list_lock);
}
@ -273,16 +286,10 @@ int amdgpu_bo_list_ioctl(struct drm_device *dev, void *data,
switch (args->in.operation) {
case AMDGPU_BO_LIST_OP_CREATE:
r = amdgpu_bo_list_create(fpriv, &list, &handle);
r = amdgpu_bo_list_create(adev, filp, info, args->in.bo_number,
&handle);
if (r)
goto error_free;
r = amdgpu_bo_list_set(adev, filp, list, info,
args->in.bo_number);
amdgpu_bo_list_put(list);
if (r)
goto error_free;
break;
case AMDGPU_BO_LIST_OP_DESTROY: