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drm/radeon: update the VM after setting BO address v4 

This way the necessary VM update is kicked off immediately
if all BOs involved are in GPU accessible memory.

v2: fix vm lock
v3: immediately update unmaps as well
v4: use drm_free_large instead of kfree

Tested-by: Kai Wasserbäch <kai@dev.carbon-project.org>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2014-09-12 12:25:45 +02:00 committed by Alex Deucher
parent d1968e1db8
commit 2f2624c235
1 changed files with 64 additions and 0 deletions
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64
drivers/gpu/drm/radeon/radeon_gem.c
View File

@ -518,6 +518,68 @@ int radeon_gem_get_tiling_ioctl(struct drm_device *dev, void *data,
return r;
}
/**
* radeon_gem_va_update_vm -update the bo_va in its VM
*
* @rdev: radeon_device pointer
* @bo_va: bo_va to update
*
* Update the bo_va directly after setting it's address. Errors are not
* vital here, so they are not reported back to userspace.
*/
static void radeon_gem_va_update_vm(struct radeon_device *rdev,
struct radeon_bo_va *bo_va)
{
struct ttm_validate_buffer tv, *entry;
struct radeon_cs_reloc *vm_bos;
struct ww_acquire_ctx ticket;
struct list_head list;
unsigned domain;
int r;
INIT_LIST_HEAD(&list);
tv.bo = &bo_va->bo->tbo;
tv.shared = true;
list_add(&tv.head, &list);
vm_bos = radeon_vm_get_bos(rdev, bo_va->vm, &list);
if (!vm_bos)
return;
r = ttm_eu_reserve_buffers(&ticket, &list, true);
if (r)
goto error_free;
list_for_each_entry(entry, &list, head) {
domain = radeon_mem_type_to_domain(entry->bo->mem.mem_type);
/* if anything is swapped out don't swap it in here,
just abort and wait for the next CS */
if (domain == RADEON_GEM_DOMAIN_CPU)
goto error_unreserve;
}
mutex_lock(&bo_va->vm->mutex);
r = radeon_vm_clear_freed(rdev, bo_va->vm);
if (r)
goto error_unlock;
if (bo_va->it.start)
r = radeon_vm_bo_update(rdev, bo_va, &bo_va->bo->tbo.mem);
error_unlock:
mutex_unlock(&bo_va->vm->mutex);
error_unreserve:
ttm_eu_backoff_reservation(&ticket, &list);
error_free:
drm_free_large(vm_bos);
if (r)
DRM_ERROR("Couldn't update BO_VA (%d)\n", r);
}
int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
struct drm_file *filp)
{
@ -612,6 +674,8 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
default:
break;
}
if (!r)
radeon_gem_va_update_vm(rdev, bo_va);
args->operation = RADEON_VA_RESULT_OK;
if (r) {
args->operation = RADEON_VA_RESULT_ERROR;