[PATCH v4 11/13] drm/vboxvideo: Use drm_gem_vram_vmap_local() in cursor update
From: Thomas Zimmermann <tzimmermann@suse.de>
Date: 2021-01-08 09:45:27
Also in:
dri-devel, virtualization
Subsystem:
drm driver for virtualbox virtual gpu, drm drivers, drm drivers and misc gpu patches, the rest · Maintainers:
Hans de Goede, David Airlie, Simona Vetter, Maarten Lankhorst, Maxime Ripard, Thomas Zimmermann, Linus Torvalds
Cursor updates in vboxvideo require a short-term mapping of the source BO. Use drm_gem_vram_vmap_local() and avoid the pinning operations. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> --- drivers/gpu/drm/vboxvideo/vbox_mode.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
index dbc0dd53c69e..215b37c78c10 100644
--- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
+++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c@@ -381,7 +381,8 @@ static void vbox_cursor_atomic_update(struct drm_plane *plane, container_of(plane->dev, struct vbox_private, ddev); struct vbox_crtc *vbox_crtc = to_vbox_crtc(plane->state->crtc); struct drm_framebuffer *fb = plane->state->fb; - struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]); + struct drm_gem_object *obj = fb->obj[0]; + struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(obj); u32 width = plane->state->crtc_w; u32 height = plane->state->crtc_h; size_t data_size, mask_size;
@@ -401,11 +402,12 @@ static void vbox_cursor_atomic_update(struct drm_plane *plane, vbox_crtc->cursor_enabled = true; - ret = drm_gem_vram_vmap(gbo, &map); + ret = dma_resv_lock(obj->resv, NULL); + if (ret) + return; + ret = drm_gem_vram_vmap_local(gbo, &map); if (ret) { - /* - * BUG: we should have pinned the BO in prepare_fb(). - */ + dma_resv_unlock(obj->resv); mutex_unlock(&vbox->hw_mutex); DRM_WARN("Could not map cursor bo, skipping update\n"); return;
@@ -421,7 +423,8 @@ static void vbox_cursor_atomic_update(struct drm_plane *plane, data_size = width * height * 4 + mask_size; copy_cursor_image(src, vbox->cursor_data, width, height, mask_size); - drm_gem_vram_vunmap(gbo, &map); + drm_gem_vram_vunmap_local(gbo, &map); + dma_resv_unlock(obj->resv); flags = VBOX_MOUSE_POINTER_VISIBLE | VBOX_MOUSE_POINTER_SHAPE | VBOX_MOUSE_POINTER_ALPHA;
--
2.29.2