drm/vmwgfx: Fix Legacy Display Unit atomic drm support

Legacy Display Unit (LDU) fb dirty support used a custom fb dirty callback. Latter
handled only the DIRTYFB IOCTL presentation path but not the ADDFB2/PAGE_FLIP/RMFB
IOCTL path, common for Wayland compositors.

Get rid of the custom callback in favor of drm_atomic_helper_dirtyfb and unify the
handling of the presentation paths inside of vmw_ldu_primary_plane_atomic_update.
This also homogenizes the fb dirty callbacks across all DUs: LDU, SOU and STDU.

Signed-off-by: Martin Krastev <krastevm@vmware.com>
Reviewed-by: Maaz Mombasawala <mombasawalam@vmware.com>
Fixes: 2f5544ff0300 ("drm/vmwgfx: Use atomic helper function for dirty fb IOCTL")
Cc: <stable@vger.kernel.org> # v5.0+
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230321020949.335012-3-zack@kde.org

1 files changed, 1 insertions, 61 deletions

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 5162a7a12792..b62207be3363 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1396,70 +1396,10 @@ static void vmw_framebuffer_bo_destroy(struct drm_framebuffer *framebuffer)
 	kfree(vfbd);
 }
 
-static int vmw_framebuffer_bo_dirty(struct drm_framebuffer *framebuffer,
-				    struct drm_file *file_priv,
-				    unsigned int flags, unsigned int color,
-				    struct drm_clip_rect *clips,
-				    unsigned int num_clips)
-{
-	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
-	struct vmw_framebuffer_bo *vfbd =
-		vmw_framebuffer_to_vfbd(framebuffer);
-	struct drm_clip_rect norect;
-	int ret, increment = 1;
-
-	drm_modeset_lock_all(&dev_priv->drm);
-
-	if (!num_clips) {
-		num_clips = 1;
-		clips = &norect;
-		norect.x1 = norect.y1 = 0;
-		norect.x2 = framebuffer->width;
-		norect.y2 = framebuffer->height;
-	} else if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY) {
-		num_clips /= 2;
-		increment = 2;
-	}
-
-	switch (dev_priv->active_display_unit) {
-	case vmw_du_legacy:
-		ret = vmw_kms_ldu_do_bo_dirty(dev_priv, &vfbd->base, 0, 0,
-					      clips, num_clips, increment);
-		break;
-	default:
-		ret = -EINVAL;
-		WARN_ONCE(true, "Dirty called with invalid display system.\n");
-		break;
-	}
-
-	vmw_cmd_flush(dev_priv, false);
-
-	drm_modeset_unlock_all(&dev_priv->drm);
-
-	return ret;
-}
-
-static int vmw_framebuffer_bo_dirty_ext(struct drm_framebuffer *framebuffer,
-					struct drm_file *file_priv,
-					unsigned int flags, unsigned int color,
-					struct drm_clip_rect *clips,
-					unsigned int num_clips)
-{
-	struct vmw_private *dev_priv = vmw_priv(framebuffer->dev);
-
-	if (dev_priv->active_display_unit == vmw_du_legacy &&
-	    vmw_cmd_supported(dev_priv))
-		return vmw_framebuffer_bo_dirty(framebuffer, file_priv, flags,
-						color, clips, num_clips);
-
-	return drm_atomic_helper_dirtyfb(framebuffer, file_priv, flags, color,
-					 clips, num_clips);
-}
-
 static const struct drm_framebuffer_funcs vmw_framebuffer_bo_funcs = {
 	.create_handle = vmw_framebuffer_bo_create_handle,
 	.destroy = vmw_framebuffer_bo_destroy,
-	.dirty = vmw_framebuffer_bo_dirty_ext,
+	.dirty = drm_atomic_helper_dirtyfb,
 };
 
 /**