* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
-*/
+ */
#include <stdlib.h>
#include <string.h>
+#include <errno.h>
#include "amdgpu.h"
#include "amdgpu_drm.h"
#include "amdgpu_internal.h"
#include "util_math.h"
-void amdgpu_vamgr_init(struct amdgpu_device *dev)
+drm_public int amdgpu_va_range_query(amdgpu_device_handle dev,
+ enum amdgpu_gpu_va_range type,
+ uint64_t *start, uint64_t *end)
{
- struct amdgpu_bo_va_mgr *vamgr = &dev->vamgr;
+ if (type != amdgpu_gpu_va_range_general)
+ return -EINVAL;
- vamgr->va_offset = dev->dev_info.virtual_address_offset;
- vamgr->va_max = dev->dev_info.virtual_address_max;
- vamgr->va_alignment = dev->dev_info.virtual_address_alignment;
+ *start = dev->dev_info.virtual_address_offset;
+ *end = dev->dev_info.virtual_address_max;
+ return 0;
+}
+
+drm_private void amdgpu_vamgr_init(struct amdgpu_bo_va_mgr *mgr, uint64_t start,
+ uint64_t max, uint64_t alignment)
+{
+ struct amdgpu_bo_va_hole *n;
+
+ mgr->va_max = max;
+ mgr->va_alignment = alignment;
- list_inithead(&vamgr->va_holes);
- pthread_mutex_init(&vamgr->bo_va_mutex, NULL);
+ 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 - start;
+ n->offset = start;
+ list_add(&n->list, &mgr->va_holes);
+ pthread_mutex_unlock(&mgr->bo_va_mutex);
}
-uint64_t amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr,
- uint64_t size, uint64_t alignment)
+drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr)
+{
+ struct amdgpu_bo_va_hole *hole, *tmp;
+ LIST_FOR_EACH_ENTRY_SAFE(hole, tmp, &mgr->va_holes, list) {
+ list_del(&hole->list);
+ free(hole);
+ }
+ pthread_mutex_destroy(&mgr->bo_va_mutex);
+}
+
+static drm_private uint64_t
+amdgpu_vamgr_find_va(struct amdgpu_bo_va_mgr *mgr, uint64_t size,
+ uint64_t alignment, uint64_t base_required)
{
struct amdgpu_bo_va_hole *hole, *n;
uint64_t offset = 0, waste = 0;
+
alignment = MAX2(alignment, mgr->va_alignment);
size = ALIGN(size, mgr->va_alignment);
+ if (base_required % alignment)
+ return AMDGPU_INVALID_VA_ADDRESS;
+
pthread_mutex_lock(&mgr->bo_va_mutex);
- /* TODO: using more appropriate way to track the holes */
- /* first look for a hole */
- LIST_FOR_EACH_ENTRY_SAFE(hole, n, &mgr->va_holes, list) {
- offset = hole->offset;
- waste = offset % alignment;
- waste = waste ? alignment - waste : 0;
- offset += waste;
- if (offset >= (hole->offset + hole->size)) {
- continue;
+ LIST_FOR_EACH_ENTRY_SAFE_REV(hole, n, &mgr->va_holes, list) {
+ if (base_required) {
+ if (hole->offset > base_required ||
+ (hole->offset + hole->size) < (base_required + size))
+ continue;
+ waste = base_required - hole->offset;
+ offset = base_required;
+ } else {
+ offset = hole->offset;
+ waste = offset % alignment;
+ waste = waste ? alignment - waste : 0;
+ offset += waste;
+ if (offset >= (hole->offset + hole->size)) {
+ continue;
+ }
}
if (!waste && hole->size == size) {
offset = hole->offset;
}
if ((hole->size - waste) > size) {
if (waste) {
- n = calloc(1,
- sizeof(struct amdgpu_bo_va_hole));
+ n = calloc(1, sizeof(struct amdgpu_bo_va_hole));
n->size = waste;
n->offset = hole->offset;
list_add(&n->list, &hole->list);
}
}
- 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;
}
-void amdgpu_vamgr_free_va(struct amdgpu_bo_va_mgr *mgr, uint64_t va,
- uint64_t size)
+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;
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);
}
+ 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);
+ }
+
+out:
+ pthread_mutex_unlock(&mgr->bo_va_mutex);
+}
+
+drm_public int amdgpu_va_range_alloc(amdgpu_device_handle dev,
+ enum amdgpu_gpu_va_range va_range_type,
+ uint64_t size,
+ uint64_t va_base_alignment,
+ uint64_t va_base_required,
+ uint64_t *va_base_allocated,
+ amdgpu_va_handle *va_range_handle,
+ uint64_t flags)
+{
+ struct amdgpu_bo_va_mgr *vamgr;
+
+ /* Clear the flag when the high VA manager is not initialized */
+ if (flags & AMDGPU_VA_RANGE_HIGH && !dev->vamgr_high_32.va_max)
+ flags &= ~AMDGPU_VA_RANGE_HIGH;
+
+ if (flags & AMDGPU_VA_RANGE_HIGH) {
+ if (flags & AMDGPU_VA_RANGE_32_BIT)
+ vamgr = &dev->vamgr_high_32;
+ else
+ vamgr = &dev->vamgr_high;
} else {
- struct amdgpu_bo_va_hole *next;
+ if (flags & AMDGPU_VA_RANGE_32_BIT)
+ vamgr = &dev->vamgr_32;
+ else
+ vamgr = &dev->vamgr;
+ }
- hole = container_of(&mgr->va_holes, hole, list);
- LIST_FOR_EACH_ENTRY(next, &mgr->va_holes, list) {
- if (next->offset < va)
- break;
- hole = next;
- }
+ va_base_alignment = MAX2(va_base_alignment, vamgr->va_alignment);
+ size = ALIGN(size, vamgr->va_alignment);
- 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;
- }
- }
+ *va_base_allocated = amdgpu_vamgr_find_va(vamgr, size,
+ va_base_alignment, va_base_required);
- /* 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;
- }
+ if (!(flags & AMDGPU_VA_RANGE_32_BIT) &&
+ (*va_base_allocated == AMDGPU_INVALID_VA_ADDRESS)) {
+ /* fallback to 32bit address */
+ if (flags & AMDGPU_VA_RANGE_HIGH)
+ vamgr = &dev->vamgr_high_32;
+ else
+ vamgr = &dev->vamgr_32;
+ *va_base_allocated = amdgpu_vamgr_find_va(vamgr, size,
+ va_base_alignment, va_base_required);
+ }
- /* 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);
+ if (*va_base_allocated != AMDGPU_INVALID_VA_ADDRESS) {
+ struct amdgpu_va* va;
+ va = calloc(1, sizeof(struct amdgpu_va));
+ if(!va){
+ amdgpu_vamgr_free_va(vamgr, *va_base_allocated, size);
+ return -ENOMEM;
}
+ va->dev = dev;
+ va->address = *va_base_allocated;
+ va->size = size;
+ va->range = va_range_type;
+ va->vamgr = vamgr;
+ *va_range_handle = va;
+ } else {
+ return -EINVAL;
}
-out:
- pthread_mutex_unlock(&mgr->bo_va_mutex);
+
+ return 0;
+}
+
+drm_public int amdgpu_va_range_free(amdgpu_va_handle va_range_handle)
+{
+ if(!va_range_handle || !va_range_handle->address)
+ return 0;
+
+ amdgpu_vamgr_free_va(va_range_handle->vamgr,
+ va_range_handle->address,
+ va_range_handle->size);
+ free(va_range_handle);
+ return 0;
}
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