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path: root/drivers/gpu/drm/qxl/qxl_display.c
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Diffstat (limited to 'drivers/gpu/drm/qxl/qxl_display.c')
-rw-r--r--drivers/gpu/drm/qxl/qxl_display.c49
1 files changed, 46 insertions, 3 deletions
diff --git a/drivers/gpu/drm/qxl/qxl_display.c b/drivers/gpu/drm/qxl/qxl_display.c
index afbf50d0c08f..4756b3c9bf2c 100644
--- a/drivers/gpu/drm/qxl/qxl_display.c
+++ b/drivers/gpu/drm/qxl/qxl_display.c
@@ -305,7 +305,9 @@ static const struct drm_crtc_funcs qxl_crtc_funcs = {
void qxl_user_framebuffer_destroy(struct drm_framebuffer *fb)
{
struct qxl_framebuffer *qxl_fb = to_qxl_framebuffer(fb);
+ struct qxl_bo *bo = gem_to_qxl_bo(qxl_fb->obj);
+ WARN_ON(bo->shadow);
drm_gem_object_unreference_unlocked(qxl_fb->obj);
drm_framebuffer_cleanup(fb);
kfree(qxl_fb);
@@ -508,6 +510,7 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
.x2 = qfb->base.width,
.y2 = qfb->base.height
};
+ bool same_shadow = false;
if (old_state->fb) {
qfb_old = to_qxl_framebuffer(old_state->fb);
@@ -519,15 +522,23 @@ static void qxl_primary_atomic_update(struct drm_plane *plane,
if (bo == bo_old)
return;
+ if (bo_old && bo_old->shadow && bo->shadow &&
+ bo_old->shadow == bo->shadow) {
+ same_shadow = true;
+ }
+
if (bo_old && bo_old->is_primary) {
- qxl_io_destroy_primary(qdev);
+ if (!same_shadow)
+ qxl_io_destroy_primary(qdev);
bo_old->is_primary = false;
}
if (!bo->is_primary) {
- qxl_io_create_primary(qdev, 0, bo);
+ if (!same_shadow)
+ qxl_io_create_primary(qdev, 0, bo);
bo->is_primary = true;
}
+
qxl_draw_dirty_fb(qdev, qfb, bo, 0, 0, &norect, 1, 1);
}
@@ -679,8 +690,9 @@ static void qxl_cursor_atomic_disable(struct drm_plane *plane,
static int qxl_plane_prepare_fb(struct drm_plane *plane,
struct drm_plane_state *new_state)
{
+ struct qxl_device *qdev = plane->dev->dev_private;
struct drm_gem_object *obj;
- struct qxl_bo *user_bo;
+ struct qxl_bo *user_bo, *old_bo = NULL;
int ret;
if (!new_state->fb)
@@ -689,6 +701,32 @@ static int qxl_plane_prepare_fb(struct drm_plane *plane,
obj = to_qxl_framebuffer(new_state->fb)->obj;
user_bo = gem_to_qxl_bo(obj);
+ if (plane->type == DRM_PLANE_TYPE_PRIMARY &&
+ user_bo->is_dumb && !user_bo->shadow) {
+ if (plane->state->fb) {
+ obj = to_qxl_framebuffer(plane->state->fb)->obj;
+ old_bo = gem_to_qxl_bo(obj);
+ }
+ if (old_bo && old_bo->shadow &&
+ user_bo->gem_base.size == old_bo->gem_base.size &&
+ plane->state->crtc == new_state->crtc &&
+ plane->state->crtc_w == new_state->crtc_w &&
+ plane->state->crtc_h == new_state->crtc_h &&
+ plane->state->src_x == new_state->src_x &&
+ plane->state->src_y == new_state->src_y &&
+ plane->state->src_w == new_state->src_w &&
+ plane->state->src_h == new_state->src_h &&
+ plane->state->rotation == new_state->rotation &&
+ plane->state->zpos == new_state->zpos) {
+ drm_gem_object_get(&old_bo->shadow->gem_base);
+ user_bo->shadow = old_bo->shadow;
+ } else {
+ qxl_bo_create(qdev, user_bo->gem_base.size,
+ true, true, QXL_GEM_DOMAIN_VRAM, NULL,
+ &user_bo->shadow);
+ }
+ }
+
ret = qxl_bo_pin(user_bo, QXL_GEM_DOMAIN_CPU, NULL);
if (ret)
return ret;
@@ -713,6 +751,11 @@ static void qxl_plane_cleanup_fb(struct drm_plane *plane,
obj = to_qxl_framebuffer(old_state->fb)->obj;
user_bo = gem_to_qxl_bo(obj);
qxl_bo_unpin(user_bo);
+
+ if (user_bo->shadow && !user_bo->is_primary) {
+ drm_gem_object_put_unlocked(&user_bo->shadow->gem_base);
+ user_bo->shadow = NULL;
+ }
}
static const uint32_t qxl_cursor_plane_formats[] = {