Hi
Am 12.04.24 um 20:57 schrieb Laurent Pinchart:
Hi Thomas,
Thank you for the patch.
On Wed, Apr 10, 2024 at 03:02:24PM +0200, Thomas Zimmermann wrote:
Implement fbdev emulation with fbdev-dma. Fbdev-dma now supports
damage handling, which is required by rcar-du. Avoids the overhead of
fbdev-generic's additional shadow buffering. No functional changes.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
Cc: Kieran Bingham <kieran.bingham+renesas@xxxxxxxxxxxxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
On a side note, I noticed that drm_fbdev_generic_client_funcs and
drm_fbdev_dma_client_funcs point to functions that are identical. Would
there be a way to avoid the code duplication ?
I avoided this so far as I don't want to accidentally de-duplicate
functions that later turn out to not be identical. But it is on the TODO
list.
Best regards
Thomas
---
drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
index dee530e4c8b27..fb719d9aff10d 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_drv.c
@@ -20,7 +20,7 @@
#include <drm/drm_atomic_helper.h>
#include <drm/drm_drv.h>
-#include <drm/drm_fbdev_generic.h>
+#include <drm/drm_fbdev_dma.h>
#include <drm/drm_gem_dma_helper.h>
#include <drm/drm_managed.h>
#include <drm/drm_probe_helper.h>
@@ -716,7 +716,7 @@ static int rcar_du_probe(struct platform_device *pdev)
drm_info(&rcdu->ddev, "Device %s probed\n", dev_name(&pdev->dev));
- drm_fbdev_generic_setup(&rcdu->ddev, 32);
+ drm_fbdev_dma_setup(&rcdu->ddev, 32);
return 0;
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstrasse 146, 90461 Nuernberg, Germany
GF: Ivo Totev, Andrew Myers, Andrew McDonald, Boudien Moerman
HRB 36809 (AG Nuernberg)
