int radeon_gem_object_create(struct radeon_device *rdev, int size,
int alignment, int initial_domain,
bool discardable, bool kernel,
bool interruptible,
struct drm_gem_object **obj)
{
struct drm_gem_object *gobj;
struct radeon_object *robj;
int r;
*obj = NULL;
gobj = drm_gem_object_alloc(rdev->ddev, size);
if (!gobj) {
return -ENOMEM;
}
if (alignment < PAGE_SIZE) {
alignment = PAGE_SIZE;
}
r = radeon_object_create(rdev, gobj, size, kernel, initial_domain,
interruptible, &robj);
if (r) {
DRM_ERROR("Failed to allocate GEM object (%d, %d, %u)\n",
size, initial_domain, alignment);
mutex_lock(&rdev->ddev->struct_mutex);
drm_gem_object_unreference(gobj);
mutex_unlock(&rdev->ddev->struct_mutex);
return r;
}
gobj->driver_private = robj;
*obj = gobj;
return 0;
}
int radeon_ttm_init(struct radeon_device *rdev)
{
int r;
r = radeon_ttm_global_init(rdev);
if (r) {
return r;
}
r = ttm_bo_device_init(&rdev->mman.bdev,
rdev->mman.bo_global_ref.ref.object,
&radeon_bo_driver, DRM_FILE_PAGE_OFFSET,
rdev->need_dma32);
if (r) {
DRM_ERROR("failed initializing buffer object driver(%d).\n", r);
return r;
}
r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_VRAM, 0,
((rdev->mc.real_vram_size) >> PAGE_SHIFT));
if (r) {
DRM_ERROR("Failed initializing VRAM heap.\n");
return r;
}
r = radeon_object_create(rdev, NULL, 256 * 1024, true,
RADEON_GEM_DOMAIN_VRAM, false,
&rdev->stollen_vga_memory);
if (r) {
return r;
}
r = radeon_object_pin(rdev->stollen_vga_memory, RADEON_GEM_DOMAIN_VRAM, NULL);
if (r) {
radeon_object_unref(&rdev->stollen_vga_memory);
return r;
}
DRM_INFO("radeon: %uM of VRAM memory ready\n",
(unsigned)rdev->mc.real_vram_size / (1024 * 1024));
r = ttm_bo_init_mm(&rdev->mman.bdev, TTM_PL_TT, 0,
((rdev->mc.gtt_size) >> PAGE_SHIFT));
if (r) {
DRM_ERROR("Failed initializing GTT heap.\n");
return r;
}
DRM_INFO("radeon: %uM of GTT memory ready.\n",
(unsigned)(rdev->mc.gtt_size / (1024 * 1024)));
if (unlikely(rdev->mman.bdev.dev_mapping == NULL)) {
rdev->mman.bdev.dev_mapping = rdev->ddev->dev_mapping;
}
r = radeon_ttm_debugfs_init(rdev);
if (r) {
DRM_ERROR("Failed to init debugfs\n");
return r;
}
return 0;
}
void radeon_test_moves(struct radeon_device *rdev)
{
struct radeon_object *vram_obj = NULL;
struct radeon_object **gtt_obj = NULL;
struct radeon_fence *fence = NULL;
uint64_t gtt_addr, vram_addr;
unsigned i, n, size;
int r;
size = 1024 * 1024;
n = ((u32)(rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - RADEON_GPU_PAGE_SIZE -
rdev->cp.ring_size)) / size;
gtt_obj = kzalloc(n * sizeof(*gtt_obj), GFP_KERNEL);
if (!gtt_obj) {
DRM_ERROR("Failed to allocate %d pointers\n", n);
r = 1;
goto out_cleanup;
}
r = radeon_object_create(rdev, NULL, size, true, RADEON_GEM_DOMAIN_VRAM,
false, &vram_obj);
if (r) {
DRM_ERROR("Failed to create VRAM object\n");
goto out_cleanup;
}
r = radeon_object_pin(vram_obj, RADEON_GEM_DOMAIN_VRAM, &vram_addr);
if (r) {
DRM_ERROR("Failed to pin VRAM object\n");
goto out_cleanup;
}
for (i = 0; i < n; i++) {
void *gtt_map, *vram_map;
void **gtt_start, **gtt_end;
void **vram_start, **vram_end;
r = radeon_object_create(rdev, NULL, size, true,
RADEON_GEM_DOMAIN_GTT, false, gtt_obj + i);
if (r) {
DRM_ERROR("Failed to create GTT object %d\n", i);
goto out_cleanup;
}
r = radeon_object_pin(gtt_obj[i], RADEON_GEM_DOMAIN_GTT, >t_addr);
if (r) {
DRM_ERROR("Failed to pin GTT object %d\n", i);
goto out_cleanup;
}
r = radeon_object_kmap(gtt_obj[i], >t_map);
if (r) {
DRM_ERROR("Failed to map GTT object %d\n", i);
goto out_cleanup;
}
for (gtt_start = gtt_map, gtt_end = gtt_map + size;
gtt_start < gtt_end;
gtt_start++)
*gtt_start = gtt_start;
radeon_object_kunmap(gtt_obj[i]);
r = radeon_fence_create(rdev, &fence);
if (r) {
DRM_ERROR("Failed to create GTT->VRAM fence %d\n", i);
goto out_cleanup;
}
r = radeon_copy(rdev, gtt_addr, vram_addr, size / RADEON_GPU_PAGE_SIZE, fence);
if (r) {
DRM_ERROR("Failed GTT->VRAM copy %d\n", i);
goto out_cleanup;
}
r = radeon_fence_wait(fence, false);
if (r) {
DRM_ERROR("Failed to wait for GTT->VRAM fence %d\n", i);
goto out_cleanup;
}
radeon_fence_unref(&fence);
r = radeon_object_kmap(vram_obj, &vram_map);
if (r) {
DRM_ERROR("Failed to map VRAM object after copy %d\n", i);
goto out_cleanup;
}
for (gtt_start = gtt_map, gtt_end = gtt_map + size,
vram_start = vram_map, vram_end = vram_map + size;
vram_start < vram_end;
gtt_start++, vram_start++) {
if (*vram_start != gtt_start) {
DRM_ERROR("Incorrect GTT->VRAM copy %d: Got 0x%p, "
"expected 0x%p (GTT map 0x%p-0x%p)\n",
i, *vram_start, gtt_start, gtt_map,
gtt_end);
radeon_object_kunmap(vram_obj);
goto out_cleanup;
}
*vram_start = vram_start;
}
radeon_object_kunmap(vram_obj);
r = radeon_fence_create(rdev, &fence);
if (r) {
DRM_ERROR("Failed to create VRAM->GTT fence %d\n", i);
goto out_cleanup;
}
r = radeon_copy(rdev, vram_addr, gtt_addr, size / RADEON_GPU_PAGE_SIZE, fence);
if (r) {
DRM_ERROR("Failed VRAM->GTT copy %d\n", i);
goto out_cleanup;
}
r = radeon_fence_wait(fence, false);
if (r) {
DRM_ERROR("Failed to wait for VRAM->GTT fence %d\n", i);
goto out_cleanup;
}
radeon_fence_unref(&fence);
r = radeon_object_kmap(gtt_obj[i], >t_map);
if (r) {
DRM_ERROR("Failed to map GTT object after copy %d\n", i);
goto out_cleanup;
}
for (gtt_start = gtt_map, gtt_end = gtt_map + size,
vram_start = vram_map, vram_end = vram_map + size;
gtt_start < gtt_end;
gtt_start++, vram_start++) {
if (*gtt_start != vram_start) {
DRM_ERROR("Incorrect VRAM->GTT copy %d: Got 0x%p, "
"expected 0x%p (VRAM map 0x%p-0x%p)\n",
i, *gtt_start, vram_start, vram_map,
vram_end);
radeon_object_kunmap(gtt_obj[i]);
goto out_cleanup;
}
}
radeon_object_kunmap(gtt_obj[i]);
DRM_INFO("Tested GTT->VRAM and VRAM->GTT copy for GTT offset 0x%llx\n",
gtt_addr - rdev->mc.gtt_location);
}
out_cleanup:
if (vram_obj) {
radeon_object_unpin(vram_obj);
radeon_object_unref(&vram_obj);
}
if (gtt_obj) {
for (i = 0; i < n; i++) {
if (gtt_obj[i]) {
radeon_object_unpin(gtt_obj[i]);
radeon_object_unref(>t_obj[i]);
}
}
kfree(gtt_obj);
}
if (fence) {
radeon_fence_unref(&fence);
}
if (r) {
printk(KERN_WARNING "Error while testing BO move.\n");
}
}
