Merge tag 'drm-misc-next-fixes-2024-07-11' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

A fix for fbdev on big endian systems, a condition fix for a sharp panel
at removal, and a fix for qxl to prevent unpinned buffer access under
certain conditions.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240711-benign-rich-mouflon-2eeafe@houat

Author: airlied

drivers/gpu/drm/drm_fbdev_dma.c

@@ -101,7 +101,8 @@ static int drm_fbdev_dma_helper_fb_probe(struct drm_fb_helper *fb_helper,
 		    sizes->surface_width, sizes->surface_height,
 		    sizes->surface_bpp);
 
-	format = drm_mode_legacy_fb_format(sizes->surface_bpp, sizes->surface_depth);
+	format = drm_driver_legacy_fb_format(dev, sizes->surface_bpp,
+					     sizes->surface_depth);
 	buffer = drm_client_framebuffer_create(client, sizes->surface_width,
 					       sizes->surface_height, format);
 	if (IS_ERR(buffer))

drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c

@@ -362,7 +362,7 @@ static void sharp_panel_remove(struct mipi_dsi_device *dsi)
 		dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", err);
 
 	/* only detach from host for the DSI-LINK2 interface */
-	if (!sharp)
+	if (sharp)
 		sharp_panel_del(sharp);
 }
 

drivers/gpu/drm/qxl/qxl_display.c

@@ -584,11 +584,11 @@ static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
 	if (ret)
 		goto err;
 
-	ret = qxl_bo_vmap(cursor_bo, &cursor_map);
+	ret = qxl_bo_pin_and_vmap(cursor_bo, &cursor_map);
 	if (ret)
 		goto err_unref;
 
-	ret = qxl_bo_vmap(user_bo, &user_map);
+	ret = qxl_bo_pin_and_vmap(user_bo, &user_map);
 	if (ret)
 		goto err_unmap;
 
@@ -614,12 +614,12 @@ static struct qxl_bo *qxl_create_cursor(struct qxl_device *qdev,
 		       user_map.vaddr, size);
 	}
 
-	qxl_bo_vunmap(user_bo);
-	qxl_bo_vunmap(cursor_bo);
+	qxl_bo_vunmap_and_unpin(user_bo);
+	qxl_bo_vunmap_and_unpin(cursor_bo);
 	return cursor_bo;
 
 err_unmap:
-	qxl_bo_vunmap(cursor_bo);
+	qxl_bo_vunmap_and_unpin(cursor_bo);
 err_unref:
 	qxl_bo_unpin(cursor_bo);
 	qxl_bo_unref(&cursor_bo);
@@ -1205,7 +1205,7 @@ int qxl_create_monitors_object(struct qxl_device *qdev)
 	}
 	qdev->monitors_config_bo = gem_to_qxl_bo(gobj);
 
-	ret = qxl_bo_vmap(qdev->monitors_config_bo, &map);
+	ret = qxl_bo_pin_and_vmap(qdev->monitors_config_bo, &map);
 	if (ret)
 		return ret;
 
@@ -1236,7 +1236,7 @@ int qxl_destroy_monitors_object(struct qxl_device *qdev)
 	qdev->monitors_config = NULL;
 	qdev->ram_header->monitors_config = 0;
 
-	ret = qxl_bo_vunmap(qdev->monitors_config_bo);
+	ret = qxl_bo_vunmap_and_unpin(qdev->monitors_config_bo);
 	if (ret)
 		return ret;
 

drivers/gpu/drm/qxl/qxl_object.c

@@ -182,15 +182,23 @@ int qxl_bo_vmap_locked(struct qxl_bo *bo, struct iosys_map *map)
 	return 0;
 }
 
-int qxl_bo_vmap(struct qxl_bo *bo, struct iosys_map *map)
+int qxl_bo_pin_and_vmap(struct qxl_bo *bo, struct iosys_map *map)
 {
 	int r;
 
 	r = qxl_bo_reserve(bo);
 	if (r)
 		return r;
 
+	r = qxl_bo_pin_locked(bo);
+	if (r) {
+		qxl_bo_unreserve(bo);
+		return r;
+	}
+
 	r = qxl_bo_vmap_locked(bo, map);
+	if (r)
+		qxl_bo_unpin_locked(bo);
 	qxl_bo_unreserve(bo);
 	return r;
 }
@@ -241,7 +249,7 @@ void qxl_bo_vunmap_locked(struct qxl_bo *bo)
 	ttm_bo_vunmap(&bo->tbo, &bo->map);
 }
 
-int qxl_bo_vunmap(struct qxl_bo *bo)
+int qxl_bo_vunmap_and_unpin(struct qxl_bo *bo)
 {
 	int r;
 
@@ -250,6 +258,7 @@ int qxl_bo_vunmap(struct qxl_bo *bo)
 		return r;
 
 	qxl_bo_vunmap_locked(bo);
+	qxl_bo_unpin_locked(bo);
 	qxl_bo_unreserve(bo);
 	return 0;
 }

drivers/gpu/drm/qxl/qxl_object.h

@@ -59,9 +59,9 @@ extern int qxl_bo_create(struct qxl_device *qdev,
 			 u32 priority,
 			 struct qxl_surface *surf,
 			 struct qxl_bo **bo_ptr);
-int qxl_bo_vmap(struct qxl_bo *bo, struct iosys_map *map);
+int qxl_bo_pin_and_vmap(struct qxl_bo *bo, struct iosys_map *map);
 int qxl_bo_vmap_locked(struct qxl_bo *bo, struct iosys_map *map);
-int qxl_bo_vunmap(struct qxl_bo *bo);
+int qxl_bo_vunmap_and_unpin(struct qxl_bo *bo);
 void qxl_bo_vunmap_locked(struct qxl_bo *bo);
 void *qxl_bo_kmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, int page_offset);
 void qxl_bo_kunmap_atomic_page(struct qxl_device *qdev, struct qxl_bo *bo, void *map);