diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_gem.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_gem.c | 92 |
1 files changed, 87 insertions, 5 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index c194497aa586..fe48f229043e 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -394,9 +394,10 @@ int radeon_gem_set_domain_ioctl(struct drm_device *dev, void *data, return r; } -int radeon_mode_dumb_mmap(struct drm_file *filp, - struct drm_device *dev, - uint32_t handle, uint64_t *offset_p) +static int radeon_mode_mmap(struct drm_file *filp, + struct drm_device *dev, + uint32_t handle, bool dumb, + uint64_t *offset_p) { struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -405,6 +406,14 @@ int radeon_mode_dumb_mmap(struct drm_file *filp, if (gobj == NULL) { return -ENOENT; } + + /* + * We don't allow dumb mmaps on objects created using another + * interface. + */ + WARN_ONCE(dumb && !(gobj->dumb || gobj->import_attach), + "Illegal dumb map of GPU buffer.\n"); + robj = gem_to_radeon_bo(gobj); if (radeon_ttm_tt_has_userptr(robj->tbo.ttm)) { drm_gem_object_unreference_unlocked(gobj); @@ -415,12 +424,20 @@ int radeon_mode_dumb_mmap(struct drm_file *filp, return 0; } +int radeon_mode_dumb_mmap(struct drm_file *filp, + struct drm_device *dev, + uint32_t handle, uint64_t *offset_p) +{ + return radeon_mode_mmap(filp, dev, handle, true, offset_p); +} + int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct drm_radeon_gem_mmap *args = data; - return radeon_mode_dumb_mmap(filp, dev, args->handle, &args->addr_ptr); + return radeon_mode_mmap(filp, dev, args->handle, false, + &args->addr_ptr); } int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, @@ -518,6 +535,68 @@ out: 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_bo_list *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, NULL); + 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) { @@ -601,6 +680,7 @@ int radeon_gem_va_ioctl(struct drm_device *dev, void *data, if (bo_va->it.start) { args->operation = RADEON_VA_RESULT_VA_EXIST; args->offset = bo_va->it.start * RADEON_GPU_PAGE_SIZE; + radeon_bo_unreserve(rbo); goto out; } r = radeon_vm_bo_set_addr(rdev, bo_va, args->offset, args->flags); @@ -611,12 +691,13 @@ 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; } out: - radeon_bo_unreserve(rbo); drm_gem_object_unreference_unlocked(gobj); return r; } @@ -682,6 +763,7 @@ int radeon_mode_dumb_create(struct drm_file *file_priv, return -ENOMEM; r = drm_gem_handle_create(file_priv, gobj, &handle); + gobj->dumb = true; /* drop reference from allocate - handle holds it now */ drm_gem_object_unreference_unlocked(gobj); if (r) { |