return ret;
}
+/**
+ * vmw_cmd_switch_backup - Utility function to handle backup buffer switching
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @res_type: The resource type.
+ * @converter: Information about user-space binding for this resource type.
+ * @res_id: Pointer to the user-space resource handle in the command stream.
+ * @buf_id: Pointer to the user-space backup buffer handle in the command
+ * stream.
+ * @backup_offset: Offset of backup into MOB.
+ *
+ * This function prepares for registering a switch of backup buffers
+ * in the resource metadata just prior to unreserving.
+ */
+static int vmw_cmd_switch_backup(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ enum vmw_res_type res_type,
+ const struct vmw_user_resource_conv
+ *converter,
+ uint32_t *res_id,
+ uint32_t *buf_id,
+ unsigned long backup_offset)
+{
+ int ret;
+ struct vmw_dma_buffer *dma_buf;
+ struct vmw_resource_val_node *val_node;
+
+ ret = vmw_cmd_res_check(dev_priv, sw_context, res_type,
+ converter, res_id, &val_node);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_mob_ptr(dev_priv, sw_context, buf_id, &dma_buf);
+ if (unlikely(ret != 0))
+ return ret;
+
+ if (val_node->first_usage)
+ val_node->no_buffer_needed = true;
+
+ vmw_dmabuf_unreference(&val_node->new_backup);
+ val_node->new_backup = dma_buf;
+ val_node->new_backup_offset = backup_offset;
+
+ return 0;
+}
+
+/**
+ * vmw_cmd_bind_gb_surface - Validate an SVGA_3D_CMD_BIND_GB_SURFACE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_bind_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_bind_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdBindGBSurface body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_bind_gb_surface_cmd, header);
+
+ return vmw_cmd_switch_backup(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.sid, &cmd->body.mobid,
+ 0);
+}
+
+/**
+ * vmw_cmd_update_gb_image - Validate an SVGA_3D_CMD_UPDATE_GB_IMAGE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_update_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBImage body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_update_gb_surface - Validate an SVGA_3D_CMD_UPDATE_GB_SURFACE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_update_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBSurface body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_cmd_readback_gb_image - Validate an SVGA_3D_CMD_READBACK_GB_IMAGE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_readback_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdReadbackGBImage body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_readback_gb_surface - Validate an SVGA_3D_CMD_READBACK_GB_SURFACE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_readback_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdReadbackGBSurface body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
+/**
+ * vmw_cmd_invalidate_gb_image - Validate an SVGA_3D_CMD_INVALIDATE_GB_IMAGE
+ * command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_invalidate_gb_image(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdInvalidateGBImage body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.image.sid, NULL);
+}
+
+/**
+ * vmw_cmd_invalidate_gb_surface - Validate an
+ * SVGA_3D_CMD_INVALIDATE_GB_SURFACE command
+ *
+ * @dev_priv: Pointer to a device private struct.
+ * @sw_context: The software context being used for this batch.
+ * @header: Pointer to the command header in the command stream.
+ */
+static int vmw_cmd_invalidate_gb_surface(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_gb_surface_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdInvalidateGBSurface body;
+ } *cmd;
+
+ cmd = container_of(header, struct vmw_gb_surface_cmd, header);
+
+ return vmw_cmd_res_check(dev_priv, sw_context, vmw_res_surface,
+ user_surface_converter,
+ &cmd->body.sid, NULL);
+}
+
/**
* vmw_cmd_set_shader - Validate an SVGA_3D_CMD_SET_SHADER
* command
VMW_CMD_DEF(SVGA_3D_CMD_GENERATE_MIPMAPS, &vmw_cmd_invalid),
VMW_CMD_DEF(SVGA_3D_CMD_ACTIVATE_SURFACE, &vmw_cmd_invalid),
VMW_CMD_DEF(SVGA_3D_CMD_DEACTIVATE_SURFACE, &vmw_cmd_invalid),
+ VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_SURFACE, &vmw_cmd_invalid),
+ VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_SURFACE, &vmw_cmd_invalid),
+ VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_SURFACE, &vmw_cmd_bind_gb_surface),
+ VMW_CMD_DEF(SVGA_3D_CMD_COND_BIND_GB_SURFACE, &vmw_cmd_invalid),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_IMAGE, &vmw_cmd_update_gb_image),
+ VMW_CMD_DEF(SVGA_3D_CMD_UPDATE_GB_SURFACE,
+ &vmw_cmd_update_gb_surface),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_IMAGE,
+ &vmw_cmd_readback_gb_image),
+ VMW_CMD_DEF(SVGA_3D_CMD_READBACK_GB_SURFACE,
+ &vmw_cmd_readback_gb_surface),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_IMAGE,
+ &vmw_cmd_invalidate_gb_image),
+ VMW_CMD_DEF(SVGA_3D_CMD_INVALIDATE_GB_SURFACE,
+ &vmw_cmd_invalidate_gb_surface),
VMW_CMD_DEF(SVGA_3D_CMD_DEFINE_GB_CONTEXT, &vmw_cmd_invalid),
VMW_CMD_DEF(SVGA_3D_CMD_DESTROY_GB_CONTEXT, &vmw_cmd_invalid),
VMW_CMD_DEF(SVGA_3D_CMD_BIND_GB_CONTEXT, &vmw_cmd_invalid),
struct ttm_prime_object prime;
struct vmw_surface srf;
uint32_t size;
- uint32_t backup_handle;
};
/**
struct ttm_validate_buffer *val_buf);
static int vmw_legacy_srf_create(struct vmw_resource *res);
static int vmw_legacy_srf_destroy(struct vmw_resource *res);
+static int vmw_gb_surface_create(struct vmw_resource *res);
+static int vmw_gb_surface_bind(struct vmw_resource *res,
+ struct ttm_validate_buffer *val_buf);
+static int vmw_gb_surface_unbind(struct vmw_resource *res,
+ bool readback,
+ struct ttm_validate_buffer *val_buf);
+static int vmw_gb_surface_destroy(struct vmw_resource *res);
+
static const struct vmw_user_resource_conv user_surface_conv = {
.object_type = VMW_RES_SURFACE,
.unbind = &vmw_legacy_srf_unbind
};
+static const struct vmw_res_func vmw_gb_surface_func = {
+ .res_type = vmw_res_surface,
+ .needs_backup = true,
+ .may_evict = true,
+ .type_name = "guest backed surfaces",
+ .backup_placement = &vmw_mob_placement,
+ .create = vmw_gb_surface_create,
+ .destroy = vmw_gb_surface_destroy,
+ .bind = vmw_gb_surface_bind,
+ .unbind = vmw_gb_surface_unbind
+};
+
/**
* struct vmw_surface_dma - SVGA3D DMA command
*/
struct vmw_surface *srf;
void *cmd;
+ if (res->func->destroy == vmw_gb_surface_destroy) {
+ (void) vmw_gb_surface_destroy(res);
+ return;
+ }
+
if (res->id != -1) {
cmd = vmw_fifo_reserve(dev_priv, vmw_surface_destroy_size());
struct vmw_resource *res = &srf->res;
BUG_ON(res_free == NULL);
- (void) vmw_3d_resource_inc(dev_priv, false);
+ if (!dev_priv->has_mob)
+ (void) vmw_3d_resource_inc(dev_priv, false);
ret = vmw_resource_init(dev_priv, res, true, res_free,
+ (dev_priv->has_mob) ? &vmw_gb_surface_func :
&vmw_legacy_surface_func);
if (unlikely(ret != 0)) {
- vmw_3d_resource_dec(dev_priv, false);
+ if (!dev_priv->has_mob)
+ vmw_3d_resource_dec(dev_priv, false);
res_free(res);
return ret;
}
return ret;
}
+
+/**
+ * vmw_surface_define_encode - Encode a surface_define command.
+ *
+ * @srf: Pointer to a struct vmw_surface object.
+ * @cmd_space: Pointer to memory area in which the commands should be encoded.
+ */
+static int vmw_gb_surface_create(struct vmw_resource *res)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+ struct vmw_surface *srf = vmw_res_to_srf(res);
+ uint32_t cmd_len, submit_len;
+ int ret;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDefineGBSurface body;
+ } *cmd;
+
+ if (likely(res->id != -1))
+ return 0;
+
+ (void) vmw_3d_resource_inc(dev_priv, false);
+ ret = vmw_resource_alloc_id(res);
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("Failed to allocate a surface id.\n");
+ goto out_no_id;
+ }
+
+ if (unlikely(res->id >= VMWGFX_NUM_GB_SURFACE)) {
+ ret = -EBUSY;
+ goto out_no_fifo;
+ }
+
+ cmd_len = sizeof(cmd->body);
+ submit_len = sizeof(*cmd);
+ cmd = vmw_fifo_reserve(dev_priv, submit_len);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "creation.\n");
+ ret = -ENOMEM;
+ goto out_no_fifo;
+ }
+
+ cmd->header.id = SVGA_3D_CMD_DEFINE_GB_SURFACE;
+ cmd->header.size = cmd_len;
+ cmd->body.sid = srf->res.id;
+ cmd->body.surfaceFlags = srf->flags;
+ cmd->body.format = cpu_to_le32(srf->format);
+ cmd->body.numMipLevels = srf->mip_levels[0];
+ cmd->body.multisampleCount = srf->multisample_count;
+ cmd->body.autogenFilter = srf->autogen_filter;
+ cmd->body.size.width = srf->base_size.width;
+ cmd->body.size.height = srf->base_size.height;
+ cmd->body.size.depth = srf->base_size.depth;
+ vmw_fifo_commit(dev_priv, submit_len);
+
+ return 0;
+
+out_no_fifo:
+ vmw_resource_release_id(res);
+out_no_id:
+ vmw_3d_resource_dec(dev_priv, false);
+ return ret;
+}
+
+
+static int vmw_gb_surface_bind(struct vmw_resource *res,
+ struct ttm_validate_buffer *val_buf)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdBindGBSurface body;
+ } *cmd1;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdUpdateGBSurface body;
+ } *cmd2;
+ uint32_t submit_size;
+ struct ttm_buffer_object *bo = val_buf->bo;
+
+ BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
+
+ submit_size = sizeof(*cmd1) + (res->backup_dirty ? sizeof(*cmd2) : 0);
+
+ cmd1 = vmw_fifo_reserve(dev_priv, submit_size);
+ if (unlikely(cmd1 == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "binding.\n");
+ return -ENOMEM;
+ }
+
+ cmd1->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
+ cmd1->header.size = sizeof(cmd1->body);
+ cmd1->body.sid = res->id;
+ cmd1->body.mobid = bo->mem.start;
+ if (res->backup_dirty) {
+ cmd2 = (void *) &cmd1[1];
+ cmd2->header.id = SVGA_3D_CMD_UPDATE_GB_SURFACE;
+ cmd2->header.size = sizeof(cmd2->body);
+ cmd2->body.sid = res->id;
+ res->backup_dirty = false;
+ }
+ vmw_fifo_commit(dev_priv, submit_size);
+
+ return 0;
+}
+
+static int vmw_gb_surface_unbind(struct vmw_resource *res,
+ bool readback,
+ struct ttm_validate_buffer *val_buf)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+ struct ttm_buffer_object *bo = val_buf->bo;
+ struct vmw_fence_obj *fence;
+
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdReadbackGBSurface body;
+ } *cmd1;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdBindGBSurface body;
+ } *cmd2;
+ uint32_t submit_size;
+ uint8_t *cmd;
+
+
+ BUG_ON(bo->mem.mem_type != VMW_PL_MOB);
+
+ submit_size = sizeof(*cmd2) + (readback ? sizeof(*cmd1) : 0);
+ cmd = vmw_fifo_reserve(dev_priv, submit_size);
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "unbinding.\n");
+ return -ENOMEM;
+ }
+
+ cmd2 = (void *) cmd;
+ if (readback) {
+ cmd1 = (void *) cmd;
+ cmd1->header.id = SVGA_3D_CMD_READBACK_GB_SURFACE;
+ cmd1->header.size = sizeof(cmd1->body);
+ cmd1->body.sid = res->id;
+ cmd2 = (void *) &cmd1[1];
+ }
+ cmd2->header.id = SVGA_3D_CMD_BIND_GB_SURFACE;
+ cmd2->header.size = sizeof(cmd2->body);
+ cmd2->body.sid = res->id;
+ cmd2->body.mobid = SVGA3D_INVALID_ID;
+
+ vmw_fifo_commit(dev_priv, submit_size);
+
+ /*
+ * Create a fence object and fence the backup buffer.
+ */
+
+ (void) vmw_execbuf_fence_commands(NULL, dev_priv,
+ &fence, NULL);
+
+ vmw_fence_single_bo(val_buf->bo, fence);
+
+ if (likely(fence != NULL))
+ vmw_fence_obj_unreference(&fence);
+
+ return 0;
+}
+
+static int vmw_gb_surface_destroy(struct vmw_resource *res)
+{
+ struct vmw_private *dev_priv = res->dev_priv;
+ struct {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdDestroyGBSurface body;
+ } *cmd;
+
+ if (likely(res->id == -1))
+ return 0;
+
+ cmd = vmw_fifo_reserve(dev_priv, sizeof(*cmd));
+ if (unlikely(cmd == NULL)) {
+ DRM_ERROR("Failed reserving FIFO space for surface "
+ "destruction.\n");
+ return -ENOMEM;
+ }
+
+ cmd->header.id = SVGA_3D_CMD_DESTROY_GB_SURFACE;
+ cmd->header.size = sizeof(cmd->body);
+ cmd->body.sid = res->id;
+ vmw_fifo_commit(dev_priv, sizeof(*cmd));
+ vmw_resource_release_id(res);
+ vmw_3d_resource_dec(dev_priv, false);
+
+ return 0;
+}
+
+/**
+ * vmw_gb_surface_define_ioctl - Ioctl function implementing
+ * the user surface define functionality.
+ *
+ * @dev: Pointer to a struct drm_device.
+ * @data: Pointer to data copied from / to user-space.
+ * @file_priv: Pointer to a drm file private structure.
+ */
+int vmw_gb_surface_define_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ struct vmw_user_surface *user_srf;
+ struct vmw_surface *srf;
+ struct vmw_resource *res;
+ struct vmw_resource *tmp;
+ union drm_vmw_gb_surface_create_arg *arg =
+ (union drm_vmw_gb_surface_create_arg *)data;
+ struct drm_vmw_gb_surface_create_req *req = &arg->req;
+ struct drm_vmw_gb_surface_create_rep *rep = &arg->rep;
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ int ret;
+ uint32_t size;
+ struct vmw_master *vmaster = vmw_master(file_priv->master);
+ const struct svga3d_surface_desc *desc;
+ uint32_t backup_handle;
+
+ if (unlikely(vmw_user_surface_size == 0))
+ vmw_user_surface_size = ttm_round_pot(sizeof(*user_srf)) +
+ 128;
+
+ size = vmw_user_surface_size + 128;
+
+ desc = svga3dsurface_get_desc(req->format);
+ if (unlikely(desc->block_desc == SVGA3DBLOCKDESC_NONE)) {
+ DRM_ERROR("Invalid surface format for surface creation.\n");
+ return -EINVAL;
+ }
+
+ ret = ttm_read_lock(&vmaster->lock, true);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = ttm_mem_global_alloc(vmw_mem_glob(dev_priv),
+ size, false, true);
+ if (unlikely(ret != 0)) {
+ if (ret != -ERESTARTSYS)
+ DRM_ERROR("Out of graphics memory for surface"
+ " creation.\n");
+ goto out_unlock;
+ }
+
+ user_srf = kzalloc(sizeof(*user_srf), GFP_KERNEL);
+ if (unlikely(user_srf == NULL)) {
+ ret = -ENOMEM;
+ goto out_no_user_srf;
+ }
+
+ srf = &user_srf->srf;
+ res = &srf->res;
+
+ srf->flags = req->svga3d_flags;
+ srf->format = req->format;
+ srf->scanout = req->drm_surface_flags & drm_vmw_surface_flag_scanout;
+ srf->mip_levels[0] = req->mip_levels;
+ srf->num_sizes = 1;
+ srf->sizes = NULL;
+ srf->offsets = NULL;
+ user_srf->size = size;
+ srf->base_size = req->base_size;
+ srf->autogen_filter = SVGA3D_TEX_FILTER_NONE;
+ srf->multisample_count = req->multisample_count;
+ res->backup_size = svga3dsurface_get_serialized_size
+ (srf->format, srf->base_size, srf->mip_levels[0],
+ srf->flags & SVGA3D_SURFACE_CUBEMAP);
+
+ user_srf->prime.base.shareable = false;
+ user_srf->prime.base.tfile = NULL;
+
+ /**
+ * From this point, the generic resource management functions
+ * destroy the object on failure.
+ */
+
+ ret = vmw_surface_init(dev_priv, srf, vmw_user_surface_free);
+ if (unlikely(ret != 0))
+ goto out_unlock;
+
+ if (req->buffer_handle != SVGA3D_INVALID_ID) {
+ ret = vmw_user_dmabuf_lookup(tfile, req->buffer_handle,
+ &res->backup);
+ } else if (req->drm_surface_flags &
+ drm_vmw_surface_flag_create_buffer)
+ ret = vmw_user_dmabuf_alloc(dev_priv, tfile,
+ res->backup_size,
+ req->drm_surface_flags &
+ drm_vmw_surface_flag_shareable,
+ &backup_handle,
+ &res->backup);
+
+ if (unlikely(ret != 0)) {
+ vmw_resource_unreference(&res);
+ goto out_unlock;
+ }
+
+ tmp = vmw_resource_reference(&srf->res);
+ ret = ttm_prime_object_init(tfile, res->backup_size, &user_srf->prime,
+ req->drm_surface_flags &
+ drm_vmw_surface_flag_shareable,
+ VMW_RES_SURFACE,
+ &vmw_user_surface_base_release, NULL);
+
+ if (unlikely(ret != 0)) {
+ vmw_resource_unreference(&tmp);
+ vmw_resource_unreference(&res);
+ goto out_unlock;
+ }
+
+ rep->handle = user_srf->prime.base.hash.key;
+ rep->backup_size = res->backup_size;
+ if (res->backup) {
+ rep->buffer_map_handle =
+ drm_vma_node_offset_addr(&res->backup->base.vma_node);
+ rep->buffer_size = res->backup->base.num_pages * PAGE_SIZE;
+ rep->buffer_handle = backup_handle;
+ } else {
+ rep->buffer_map_handle = 0;
+ rep->buffer_size = 0;
+ rep->buffer_handle = SVGA3D_INVALID_ID;
+ }
+
+ vmw_resource_unreference(&res);
+
+ ttm_read_unlock(&vmaster->lock);
+ return 0;
+out_no_user_srf:
+ ttm_mem_global_free(vmw_mem_glob(dev_priv), size);
+out_unlock:
+ ttm_read_unlock(&vmaster->lock);
+ return ret;
+}
+
+/**
+ * vmw_gb_surface_reference_ioctl - Ioctl function implementing
+ * the user surface reference functionality.
+ *
+ * @dev: Pointer to a struct drm_device.
+ * @data: Pointer to data copied from / to user-space.
+ * @file_priv: Pointer to a drm file private structure.
+ */
+int vmw_gb_surface_reference_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct vmw_private *dev_priv = vmw_priv(dev);
+ union drm_vmw_gb_surface_reference_arg *arg =
+ (union drm_vmw_gb_surface_reference_arg *)data;
+ struct drm_vmw_surface_arg *req = &arg->req;
+ struct drm_vmw_gb_surface_ref_rep *rep = &arg->rep;
+ struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
+ struct vmw_surface *srf;
+ struct vmw_user_surface *user_srf;
+ struct ttm_base_object *base;
+ uint32_t backup_handle;
+ int ret = -EINVAL;
+
+ base = ttm_base_object_lookup_for_ref(dev_priv->tdev, req->sid);
+ if (unlikely(base == NULL)) {
+ DRM_ERROR("Could not find surface to reference.\n");
+ return -EINVAL;
+ }
+
+ if (unlikely(ttm_base_object_type(base) != VMW_RES_SURFACE))
+ goto out_bad_resource;
+
+ user_srf = container_of(base, struct vmw_user_surface, prime.base);
+ srf = &user_srf->srf;
+ if (srf->res.backup == NULL) {
+ DRM_ERROR("Shared GB surface is missing a backup buffer.\n");
+ goto out_bad_resource;
+ }
+
+ ret = ttm_ref_object_add(tfile, &user_srf->prime.base,
+ TTM_REF_USAGE, NULL);
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("Could not add a reference to a GB surface.\n");
+ goto out_bad_resource;
+ }
+
+ mutex_lock(&dev_priv->cmdbuf_mutex); /* Protect res->backup */
+ ret = vmw_user_dmabuf_reference(tfile, srf->res.backup,
+ &backup_handle);
+ mutex_unlock(&dev_priv->cmdbuf_mutex);
+
+ if (unlikely(ret != 0)) {
+ DRM_ERROR("Could not add a reference to a GB surface "
+ "backup buffer.\n");
+ (void) ttm_ref_object_base_unref(vmw_fpriv(file_priv)->tfile,
+ req->sid,
+ TTM_REF_USAGE);
+ goto out_bad_resource;
+ }
+
+ rep->creq.svga3d_flags = srf->flags;
+ rep->creq.format = srf->format;
+ rep->creq.mip_levels = srf->mip_levels[0];
+ rep->creq.drm_surface_flags = 0;
+ rep->creq.multisample_count = srf->multisample_count;
+ rep->creq.autogen_filter = srf->autogen_filter;
+ rep->creq.buffer_handle = backup_handle;
+ rep->creq.base_size = srf->base_size;
+ rep->crep.handle = user_srf->prime.base.hash.key;
+ rep->crep.backup_size = srf->res.backup_size;
+ rep->crep.buffer_handle = backup_handle;
+ rep->crep.buffer_map_handle =
+ drm_vma_node_offset_addr(&srf->res.backup->base.vma_node);
+ rep->crep.buffer_size = srf->res.backup->base.num_pages * PAGE_SIZE;
+
+out_bad_resource:
+ ttm_base_object_unref(&base);
+
+ return ret;
+}
projects / GitHub / LineageOS / android_kernel_motorola_exynos9610.git / commitdiff