/* * Usage of execbuffer: * Relocations need to take into account the full QXLDrawable size. * However, the command as passed from user space must *not* contain the initial * QXLReleaseInfo struct (first XXX bytes) */ static int qxl_execbuffer_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { struct qxl_device *qdev = dev->dev_private; struct drm_qxl_execbuffer *execbuffer = data; struct drm_qxl_command user_cmd; int cmd_num; struct qxl_bo *reloc_src_bo; struct qxl_bo *reloc_dst_bo; struct drm_qxl_reloc reloc; void *fb_cmd; int i, ret; struct qxl_reloc_list reloc_list; int unwritten; uint32_t reloc_dst_offset; INIT_LIST_HEAD(&reloc_list.bos); for (cmd_num = 0; cmd_num < execbuffer->commands_num; ++cmd_num) { struct qxl_release *release; struct qxl_bo *cmd_bo; int release_type; struct drm_qxl_command *commands = (struct drm_qxl_command *)execbuffer->commands; if (DRM_COPY_FROM_USER(&user_cmd, &commands[cmd_num], sizeof(user_cmd))) return -EFAULT; switch (user_cmd.type) { case QXL_CMD_DRAW: release_type = QXL_RELEASE_DRAWABLE; break; case QXL_CMD_SURFACE: case QXL_CMD_CURSOR: default: DRM_DEBUG("Only draw commands in execbuffers\n"); return -EINVAL; break; } if (user_cmd.command_size > PAGE_SIZE - sizeof(union qxl_release_info)) return -EINVAL; ret = qxl_alloc_release_reserved(qdev, sizeof(union qxl_release_info) + user_cmd.command_size, release_type, &release, &cmd_bo); if (ret) return ret; /* TODO copy slow path code from i915 */ fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)user_cmd.command, user_cmd.command_size); qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); if (unwritten) { DRM_ERROR("got unwritten %d\n", unwritten); qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); return -EFAULT; } for (i = 0 ; i < user_cmd.relocs_num; ++i) { if (DRM_COPY_FROM_USER(&reloc, &((struct drm_qxl_reloc *)user_cmd.relocs)[i], sizeof(reloc))) { qxl_bo_list_unreserve(&reloc_list, true); qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); return -EFAULT; } /* add the bos to the list of bos to validate - need to validate first then process relocs? */ if (reloc.dst_handle) { reloc_dst_bo = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, &reloc_list); if (!reloc_dst_bo) { qxl_bo_list_unreserve(&reloc_list, true); qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); return -EINVAL; } reloc_dst_offset = 0; } else { reloc_dst_bo = cmd_bo; reloc_dst_offset = release->release_offset; } /* reserve and validate the reloc dst bo */ if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) { reloc_src_bo = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, &reloc_list); if (!reloc_src_bo) { if (reloc_dst_bo != cmd_bo) drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); qxl_bo_list_unreserve(&reloc_list, true); qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); return -EINVAL; } } else reloc_src_bo = NULL; if (reloc.reloc_type == QXL_RELOC_TYPE_BO) { apply_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo, reloc.src_offset); } else if (reloc.reloc_type == QXL_RELOC_TYPE_SURF) { apply_surf_reloc(qdev, reloc_dst_bo, reloc_dst_offset + reloc.dst_offset, reloc_src_bo); } else { DRM_ERROR("unknown reloc type %d\n", reloc.reloc_type); return -EINVAL; } if (reloc_src_bo && reloc_src_bo != cmd_bo) { qxl_release_add_res(qdev, release, reloc_src_bo); drm_gem_object_unreference_unlocked(&reloc_src_bo->gem_base); } if (reloc_dst_bo != cmd_bo) drm_gem_object_unreference_unlocked(&reloc_dst_bo->gem_base); } qxl_fence_releaseable(qdev, release); ret = qxl_push_command_ring_release(qdev, release, user_cmd.type, true); if (ret == -ERESTARTSYS) { qxl_release_unreserve(qdev, release); qxl_release_free(qdev, release); qxl_bo_list_unreserve(&reloc_list, true); return ret; } qxl_release_unreserve(qdev, release); } qxl_bo_list_unreserve(&reloc_list, 0); return 0; }
/* push a draw command using the given clipping rectangles as * the sources from the shadow framebuffer. * * Right now implementing with a single draw and a clip list. Clip * lists are known to be a problem performance wise, this can be solved * by treating them differently in the server. */ void qxl_draw_dirty_fb(struct qxl_device *qdev, struct qxl_framebuffer *qxl_fb, struct qxl_bo *bo, unsigned flags, unsigned color, struct drm_clip_rect *clips, unsigned num_clips, int inc) { /* * TODO: if flags & DRM_MODE_FB_DIRTY_ANNOTATE_FILL then we should * send a fill command instead, much cheaper. * * See include/drm/drm_mode.h */ struct drm_clip_rect *clips_ptr; int i; int left, right, top, bottom; int width, height; struct qxl_drawable *drawable; struct qxl_rect drawable_rect; struct qxl_rect *rects; int stride = qxl_fb->base.pitches[0]; /* depth is not actually interesting, we don't mask with it */ int depth = qxl_fb->base.bits_per_pixel; uint8_t *surface_base; struct qxl_release *release; struct qxl_bo *clips_bo; struct qxl_drm_image *dimage; int ret; ret = alloc_drawable(qdev, &release); if (ret) return; left = clips->x1; right = clips->x2; top = clips->y1; bottom = clips->y2; /* skip the first clip rect */ for (i = 1, clips_ptr = clips + inc; i < num_clips; i++, clips_ptr += inc) { left = min_t(int, left, (int)clips_ptr->x1); right = max_t(int, right, (int)clips_ptr->x2); top = min_t(int, top, (int)clips_ptr->y1); bottom = max_t(int, bottom, (int)clips_ptr->y2); } width = right - left; height = bottom - top; ret = alloc_clips(qdev, release, num_clips, &clips_bo); if (ret) goto out_free_drawable; ret = qxl_image_alloc_objects(qdev, release, &dimage, height, stride); if (ret) goto out_free_clips; /* do a reservation run over all the objects we just allocated */ ret = qxl_release_reserve_list(release, true); if (ret) goto out_free_image; drawable_rect.left = left; drawable_rect.right = right; drawable_rect.top = top; drawable_rect.bottom = bottom; ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &drawable_rect, release); if (ret) goto out_release_backoff; ret = qxl_bo_kmap(bo, (void **)&surface_base); if (ret) goto out_release_backoff; ret = qxl_image_init(qdev, release, dimage, surface_base, left, top, width, height, depth, stride); qxl_bo_kunmap(bo); if (ret) goto out_release_backoff; rects = drawable_set_clipping(qdev, drawable, num_clips, clips_bo); if (!rects) goto out_release_backoff; drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); drawable->clip.type = SPICE_CLIP_TYPE_RECTS; drawable->clip.data = qxl_bo_physical_address(qdev, clips_bo, 0); drawable->u.copy.src_area.top = 0; drawable->u.copy.src_area.bottom = height; drawable->u.copy.src_area.left = 0; drawable->u.copy.src_area.right = width; drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT; drawable->u.copy.scale_mode = 0; drawable->u.copy.mask.flags = 0; drawable->u.copy.mask.pos.x = 0; drawable->u.copy.mask.pos.y = 0; drawable->u.copy.mask.bitmap = 0; drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0); qxl_release_unmap(qdev, release, &drawable->release_info); clips_ptr = clips; for (i = 0; i < num_clips; i++, clips_ptr += inc) { rects[i].left = clips_ptr->x1; rects[i].right = clips_ptr->x2; rects[i].top = clips_ptr->y1; rects[i].bottom = clips_ptr->y2; } qxl_bo_kunmap(clips_bo); qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); qxl_release_fence_buffer_objects(release); out_release_backoff: if (ret) qxl_release_backoff_reserve_list(release); out_free_image: qxl_image_free_objects(qdev, dimage); out_free_clips: qxl_bo_unref(&clips_bo); out_free_drawable: /* only free drawable on error */ if (ret) free_drawable(qdev, release); }
/* * Usage of execbuffer: * Relocations need to take into account the full QXLDrawable size. * However, the command as passed from user space must *not* contain the initial * QXLReleaseInfo struct (first XXX bytes) */ static int qxl_process_single_command(struct qxl_device *qdev, struct drm_qxl_command *cmd, struct drm_file *file_priv) { struct qxl_reloc_info *reloc_info; int release_type; struct qxl_release *release; struct qxl_bo *cmd_bo; void *fb_cmd; int i, j, ret, num_relocs; int unwritten; switch (cmd->type) { case QXL_CMD_DRAW: release_type = QXL_RELEASE_DRAWABLE; break; case QXL_CMD_SURFACE: case QXL_CMD_CURSOR: default: DRM_DEBUG("Only draw commands in execbuffers\n"); return -EINVAL; break; } if (cmd->command_size > PAGE_SIZE - sizeof(union qxl_release_info)) return -EINVAL; if (!access_ok(VERIFY_READ, (void *)(unsigned long)cmd->command, cmd->command_size)) return -EFAULT; reloc_info = kmalloc(sizeof(struct qxl_reloc_info) * cmd->relocs_num, GFP_KERNEL); if (!reloc_info) return -ENOMEM; ret = qxl_alloc_release_reserved(qdev, sizeof(union qxl_release_info) + cmd->command_size, release_type, &release, &cmd_bo); if (ret) goto out_free_reloc; /* TODO copy slow path code from i915 */ fb_cmd = qxl_bo_kmap_atomic_page(qdev, cmd_bo, (release->release_offset & PAGE_SIZE)); unwritten = __copy_from_user_inatomic_nocache(fb_cmd + sizeof(union qxl_release_info) + (release->release_offset & ~PAGE_SIZE), (void *)(unsigned long)cmd->command, cmd->command_size); { struct qxl_drawable *draw = fb_cmd; draw->mm_time = qdev->rom->mm_clock; } qxl_bo_kunmap_atomic_page(qdev, cmd_bo, fb_cmd); if (unwritten) { DRM_ERROR("got unwritten %d\n", unwritten); ret = -EFAULT; goto out_free_release; } /* fill out reloc info structs */ num_relocs = 0; for (i = 0; i < cmd->relocs_num; ++i) { struct drm_qxl_reloc reloc; if (copy_from_user(&reloc, &((struct drm_qxl_reloc *)(uintptr_t)cmd->relocs)[i], sizeof(reloc))) { ret = -EFAULT; goto out_free_bos; } /* add the bos to the list of bos to validate - need to validate first then process relocs? */ if (reloc.reloc_type != QXL_RELOC_TYPE_BO && reloc.reloc_type != QXL_RELOC_TYPE_SURF) { DRM_DEBUG("unknown reloc type %d\n", reloc_info[i].type); ret = -EINVAL; goto out_free_bos; } reloc_info[i].type = reloc.reloc_type; if (reloc.dst_handle) { reloc_info[i].dst_bo = qxlhw_handle_to_bo(qdev, file_priv, reloc.dst_handle, release); if (!reloc_info[i].dst_bo) { ret = -EINVAL; reloc_info[i].src_bo = NULL; goto out_free_bos; } reloc_info[i].dst_offset = reloc.dst_offset; } else { reloc_info[i].dst_bo = cmd_bo; reloc_info[i].dst_offset = reloc.dst_offset + release->release_offset; } num_relocs++; /* reserve and validate the reloc dst bo */ if (reloc.reloc_type == QXL_RELOC_TYPE_BO || reloc.src_handle > 0) { reloc_info[i].src_bo = qxlhw_handle_to_bo(qdev, file_priv, reloc.src_handle, release); if (!reloc_info[i].src_bo) { if (reloc_info[i].dst_bo != cmd_bo) drm_gem_object_unreference_unlocked(&reloc_info[i].dst_bo->gem_base); ret = -EINVAL; goto out_free_bos; } reloc_info[i].src_offset = reloc.src_offset; } else { reloc_info[i].src_bo = NULL; reloc_info[i].src_offset = 0; } } /* validate all buffers */ ret = qxl_release_reserve_list(release, false); if (ret) goto out_free_bos; for (i = 0; i < cmd->relocs_num; ++i) { if (reloc_info[i].type == QXL_RELOC_TYPE_BO) apply_reloc(qdev, &reloc_info[i]); else if (reloc_info[i].type == QXL_RELOC_TYPE_SURF) apply_surf_reloc(qdev, &reloc_info[i]); } ret = qxl_push_command_ring_release(qdev, release, cmd->type, true); if (ret) qxl_release_backoff_reserve_list(release); else qxl_release_fence_buffer_objects(release); out_free_bos: for (j = 0; j < num_relocs; j++) { if (reloc_info[j].dst_bo != cmd_bo) drm_gem_object_unreference_unlocked(&reloc_info[j].dst_bo->gem_base); if (reloc_info[j].src_bo && reloc_info[j].src_bo != cmd_bo) drm_gem_object_unreference_unlocked(&reloc_info[j].src_bo->gem_base); } out_free_release: if (ret) qxl_release_free(qdev, release); out_free_reloc: kfree(reloc_info); return ret; }
void qxl_draw_opaque_fb(const struct qxl_fb_image *qxl_fb_image, int stride /* filled in if 0 */) { struct qxl_device *qdev = qxl_fb_image->qdev; struct qxl_drawable *drawable; struct qxl_rect rect; const struct fb_image *fb_image = &qxl_fb_image->fb_image; int x = fb_image->dx; int y = fb_image->dy; int width = fb_image->width; int height = fb_image->height; const char *src = fb_image->data; int depth = fb_image->depth; struct qxl_release *release; struct qxl_image *image; int ret; struct qxl_drm_image *dimage; struct qxl_bo *palette_bo = NULL; if (stride == 0) stride = depth * width / 8; ret = alloc_drawable(qdev, &release); if (ret) return; ret = qxl_image_alloc_objects(qdev, release, &dimage, height, stride); if (ret) goto out_free_drawable; if (depth == 1) { ret = alloc_palette_object(qdev, release, &palette_bo); if (ret) goto out_free_image; } /* do a reservation run over all the objects we just allocated */ ret = qxl_release_reserve_list(release, true); if (ret) goto out_free_palette; rect.left = x; rect.right = x + width; rect.top = y; rect.bottom = y + height; ret = make_drawable(qdev, 0, QXL_DRAW_COPY, &rect, release); if (ret) { qxl_release_backoff_reserve_list(release); goto out_free_palette; } ret = qxl_image_init(qdev, release, dimage, (const uint8_t *)src, 0, 0, width, height, depth, stride); if (ret) { qxl_release_backoff_reserve_list(release); qxl_release_free(qdev, release); return; } if (depth == 1) { void *ptr; ret = qxl_palette_create_1bit(palette_bo, release, qxl_fb_image); ptr = qxl_bo_kmap_atomic_page(qdev, dimage->bo, 0); image = ptr; image->u.bitmap.palette = qxl_bo_physical_address(qdev, palette_bo, 0); qxl_bo_kunmap_atomic_page(qdev, dimage->bo, ptr); } drawable = (struct qxl_drawable *)qxl_release_map(qdev, release); drawable->u.copy.src_area.top = 0; drawable->u.copy.src_area.bottom = height; drawable->u.copy.src_area.left = 0; drawable->u.copy.src_area.right = width; drawable->u.copy.rop_descriptor = SPICE_ROPD_OP_PUT; drawable->u.copy.scale_mode = 0; drawable->u.copy.mask.flags = 0; drawable->u.copy.mask.pos.x = 0; drawable->u.copy.mask.pos.y = 0; drawable->u.copy.mask.bitmap = 0; drawable->u.copy.src_bitmap = qxl_bo_physical_address(qdev, dimage->bo, 0); qxl_release_unmap(qdev, release, &drawable->release_info); qxl_push_command_ring_release(qdev, release, QXL_CMD_DRAW, false); qxl_release_fence_buffer_objects(release); out_free_palette: if (palette_bo) qxl_bo_unref(&palette_bo); out_free_image: qxl_image_free_objects(qdev, dimage); out_free_drawable: if (ret) free_drawable(qdev, release); }