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amdgpu: clean up non list code path for vamgr v2 

v2: Add missing "goto out"

Signed-off-by: Chunming Zhou <david1.zhou@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Michel Dänzer <michel.daenzer@amd.com>
main
Chunming Zhou 2018-02-08 14:52:11 +08:00
parent fa35b51f63
commit 69f9faeee6
2 changed files with 45 additions and 81 deletions
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2
amdgpu/amdgpu_internal.h
View File

@ -53,8 +53,6 @@ struct amdgpu_bo_va_hole {
};
struct amdgpu_bo_va_mgr {
/* the start virtual address */
uint64_t va_offset;
uint64_t va_max;
struct list_head va_holes;
pthread_mutex_t bo_va_mutex;

124
amdgpu/amdgpu_vamgr.c
View File

@ -48,12 +48,19 @@ int amdgpu_va_range_query(amdgpu_device_handle dev,
drm_private void amdgpu_vamgr_init(struct amdgpu_bo_va_mgr *mgr, uint64_t start,
uint64_t max, uint64_t alignment)
{
mgr->va_offset = start;
struct amdgpu_bo_va_hole *n;
mgr->va_max = max;
mgr->va_alignment = alignment;
list_inithead(&mgr->va_holes);
pthread_mutex_init(&mgr->bo_va_mutex, NULL);
pthread_mutex_lock(&mgr->bo_va_mutex);
n = calloc(1, sizeof(struct amdgpu_bo_va_hole));
n->size = mgr->va_max;
n->offset = start;
list_add(&n->list, &mgr->va_holes);
pthread_mutex_unlock(&mgr->bo_va_mutex);
}
drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr)
@ -122,41 +129,14 @@ amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
}
}
if (base_required) {
if (base_required < mgr->va_offset) {
pthread_mutex_unlock(&mgr->bo_va_mutex);
return AMDGPU_INVALID_VA_ADDRESS;
}
offset = mgr->va_offset;
waste = base_required - mgr->va_offset;
} else {
offset = mgr->va_offset;
waste = offset % alignment;
waste = waste ? alignment - waste : 0;
}
if (offset + waste + size > mgr->va_max) {
pthread_mutex_unlock(&mgr->bo_va_mutex);
return AMDGPU_INVALID_VA_ADDRESS;
}
if (waste) {
n = calloc(1, sizeof(struct amdgpu_bo_va_hole));
n->size = waste;
n->offset = offset;
list_add(&n->list, &mgr->va_holes);
}
offset += waste;
mgr->va_offset += size + waste;
pthread_mutex_unlock(&mgr->bo_va_mutex);
return offset;
return AMDGPU_INVALID_VA_ADDRESS;
}
static drm_private void
amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, uint64_t size)
{
struct amdgpu_bo_va_hole *hole;
struct amdgpu_bo_va_hole *hole, *next;
if (va == AMDGPU_INVALID_VA_ADDRESS)
return;
@ -164,61 +144,47 @@ amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va, uint64_t size)
size = ALIGN(size, mgr->va_alignment);
pthread_mutex_lock(&mgr->bo_va_mutex);
if ((va + size) == mgr->va_offset) {
mgr->va_offset = va;
/* Delete uppermost hole if it reaches the new top */
if (!LIST_IS_EMPTY(&mgr->va_holes)) {
hole = container_of(mgr->va_holes.next, hole, list);
if ((hole->offset + hole->size) == va) {
mgr->va_offset = hole->offset;
hole = container_of(&mgr->va_holes, hole, list);
LIST_FOR_EACH_ENTRY(next, &mgr->va_holes, list) {
if (next->offset < va)
break;
hole = next;
}
if (&hole->list != &mgr->va_holes) {
/* Grow upper hole if it's adjacent */
if (hole->offset == (va + size)) {
hole->offset = va;
hole->size += size;
/* Merge lower hole if it's adjacent */
if (next != hole &&
&next->list != &mgr->va_holes &&
(next->offset + next->size) == va) {
next->size += hole->size;
list_del(&hole->list);
free(hole);
}
}
} else {
struct amdgpu_bo_va_hole *next;
hole = container_of(&mgr->va_holes, hole, list);
LIST_FOR_EACH_ENTRY(next, &mgr->va_holes, list) {
if (next->offset < va)
break;
hole = next;
}
if (&hole->list != &mgr->va_holes) {
/* Grow upper hole if it's adjacent */
if (hole->offset == (va + size)) {
hole->offset = va;
hole->size += size;
/* Merge lower hole if it's adjacent */
if (next != hole &&
&next->list != &mgr->va_holes &&
(next->offset + next->size) == va) {
next->size += hole->size;
list_del(&hole->list);
free(hole);
}
goto out;
}
}
/* Grow lower hole if it's adjacent */
if (next != hole && &next->list != &mgr->va_holes &&
(next->offset + next->size) == va) {
next->size += size;
goto out;
}
/* FIXME on allocation failure we just lose virtual address space
* maybe print a warning
*/
next = calloc(1, sizeof(struct amdgpu_bo_va_hole));
if (next) {
next->size = size;
next->offset = va;
list_add(&next->list, &hole->list);
}
}
/* Grow lower hole if it's adjacent */
if (next != hole && &next->list != &mgr->va_holes &&
(next->offset + next->size) == va) {
next->size += size;
goto out;
}
/* FIXME on allocation failure we just lose virtual address space
* maybe print a warning
*/
next = calloc(1, sizeof(struct amdgpu_bo_va_hole));
if (next) {
next->size = size;
next->offset = va;
list_add(&next->list, &hole->list);
}
out:
pthread_mutex_unlock(&mgr->bo_va_mutex);
}