2019-04-11 04:51:59

by Gerd Hoffmann

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Subject: [PATCH] drm: fix drm_fb_xrgb8888_to_rgb888_dstclip()

Oops, the __iomem annotation was added to the header file only.
Add it to the implementation (and documentation) too.

Fixes: 5c5373b51bec ("drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept __iomem dst")
Signed-off-by: Gerd Hoffmann <[email protected]>
---
drivers/gpu/drm/drm_format_helper.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
index 319de608a088..da388012df2a 100644
--- a/drivers/gpu/drm/drm_format_helper.c
+++ b/drivers/gpu/drm/drm_format_helper.c
@@ -230,7 +230,7 @@ static void drm_fb_xrgb8888_to_rgb888_line(u8 *dbuf, u32 *sbuf,

/**
* drm_fb_xrgb8888_to_rgb888_dstclip - Convert XRGB8888 to RGB888 clip buffer
- * @dst: RGB565 destination buffer
+ * @dst: RGB565 destination buffer (iomem)
* @dst_pitch: destination buffer pitch
* @vaddr: XRGB8888 source buffer
* @fb: DRM framebuffer
@@ -241,9 +241,9 @@ static void drm_fb_xrgb8888_to_rgb888_line(u8 *dbuf, u32 *sbuf,
* support XRGB8888.
*
* This function applies clipping on dst, i.e. the destination is a
- * full framebuffer but only the clip rect content is copied over.
+ * full (iomem) framebuffer but only the clip rect content is copied over.
*/
-void drm_fb_xrgb8888_to_rgb888_dstclip(void *dst, unsigned int dst_pitch,
+void drm_fb_xrgb8888_to_rgb888_dstclip(void __iomem *dst, unsigned int dst_pitch,
void *vaddr, struct drm_framebuffer *fb,
struct drm_rect *clip)
{
--
2.18.1


2019-04-11 13:24:54

by Noralf Trønnes

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Subject: Re: [PATCH] drm: fix drm_fb_xrgb8888_to_rgb888_dstclip()



Den 11.04.2019 06.49, skrev Gerd Hoffmann:
> Oops, the __iomem annotation was added to the header file only.
> Add it to the implementation (and documentation) too.
>
> Fixes: 5c5373b51bec ("drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept __iomem dst")
> Signed-off-by: Gerd Hoffmann <[email protected]>
> ---

Reviewed-by: Noralf Trønnes <[email protected]>

2019-04-16 07:27:12

by Daniel Vetter

[permalink] [raw]
Subject: Re: [PATCH] drm: fix drm_fb_xrgb8888_to_rgb888_dstclip()

On Thu, Apr 11, 2019 at 06:49:32AM +0200, Gerd Hoffmann wrote:
> Oops, the __iomem annotation was added to the header file only.
> Add it to the implementation (and documentation) too.
>
> Fixes: 5c5373b51bec ("drm: switch drm_fb_xrgb8888_to_rgb888_dstclip to accept __iomem dst")
> Signed-off-by: Gerd Hoffmann <[email protected]>
> ---
> drivers/gpu/drm/drm_format_helper.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
> index 319de608a088..da388012df2a 100644
> --- a/drivers/gpu/drm/drm_format_helper.c
> +++ b/drivers/gpu/drm/drm_format_helper.c
> @@ -230,7 +230,7 @@ static void drm_fb_xrgb8888_to_rgb888_line(u8 *dbuf, u32 *sbuf,
>
> /**
> * drm_fb_xrgb8888_to_rgb888_dstclip - Convert XRGB8888 to RGB888 clip buffer
> - * @dst: RGB565 destination buffer
> + * @dst: RGB565 destination buffer (iomem)
> * @dst_pitch: destination buffer pitch
> * @vaddr: XRGB8888 source buffer
> * @fb: DRM framebuffer
> @@ -241,9 +241,9 @@ static void drm_fb_xrgb8888_to_rgb888_line(u8 *dbuf, u32 *sbuf,
> * support XRGB8888.
> *
> * This function applies clipping on dst, i.e. the destination is a
> - * full framebuffer but only the clip rect content is copied over.
> + * full (iomem) framebuffer but only the clip rect content is copied over.
> */

All this nice kerneldoc isn't pulled into the docs in
Documentation/gpu/drm-kms-helper.rst anywhere. Can you pls fix that too?

Thanks, Daniel

> -void drm_fb_xrgb8888_to_rgb888_dstclip(void *dst, unsigned int dst_pitch,
> +void drm_fb_xrgb8888_to_rgb888_dstclip(void __iomem *dst, unsigned int dst_pitch,
> void *vaddr, struct drm_framebuffer *fb,
> struct drm_rect *clip)
> {
> --
> 2.18.1
>

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch