[PATCH 04/12] drm/format-helper: Rework XRGB8888-to-RGBG332 conversion
Thomas Zimmermann
tzimmermann at suse.de
Thu Jul 28 07:27:52 UTC 2022
Hi
Am 28.07.22 um 09:13 schrieb José Expósito:
> Hi Thomas,
>
> On Wed, Jul 27, 2022 at 01:33:04PM +0200, Thomas Zimmermann wrote:
>> Update XRGB8888-to-RGB332 conversion to support struct iosys_map
>> and convert all users. Although these are single-plane color formats,
>> the new interface supports multi-plane formats for consistency with
>> drm_fb_blit().
>>
>> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
>
> Tested-by: José Expósito <jose.exposito89 at gmail.com>
> Reviewed-by: José Expósito <jose.exposito89 at gmail.com>
>
> I just ran the tests in x86_64 and UML and they work as expected.
> I need to find some time to review all patches, but this one LGTM.
Thanks a lot.
>
> This series will cause conflicts with [1]. Depending on which patchset
> gets merged earlier, we will have to resolve the conflicts in one
> series or the other.
I've seen this. Go ahead and commit your patches if they are ready. I
can easily rebase on top.
Best reards
Thomas
>
> Best wishes,
> Jose
>
> [1] https://patchwork.kernel.org/project/dri-devel/list/?series=663266
>
>> ---
>> drivers/gpu/drm/drm_format_helper.c | 25 ++++++++++++++-----
>> drivers/gpu/drm/gud/gud_pipe.c | 2 +-
>> .../gpu/drm/tests/drm_format_helper_test.c | 14 ++++++-----
>> include/drm/drm_format_helper.h | 5 ++--
>> 4 files changed, 31 insertions(+), 15 deletions(-)
>>
>> diff --git a/drivers/gpu/drm/drm_format_helper.c b/drivers/gpu/drm/drm_format_helper.c
>> index fa22d3cb11e8..2b5c3746ff4a 100644
>> --- a/drivers/gpu/drm/drm_format_helper.c
>> +++ b/drivers/gpu/drm/drm_format_helper.c
>> @@ -265,18 +265,31 @@ static void drm_fb_xrgb8888_to_rgb332_line(void *dbuf, const void *sbuf, unsigne
>>
>> /**
>> * drm_fb_xrgb8888_to_rgb332 - Convert XRGB8888 to RGB332 clip buffer
>> - * @dst: RGB332 destination buffer
>> - * @dst_pitch: Number of bytes between two consecutive scanlines within dst
>> - * @src: XRGB8888 source buffer
>> + * @dst: Array of RGB332 destination buffers
>> + * @dst_pitch: Array of numbers of bytes between two consecutive scanlines within dst
>> + * @vmap: Array of XRGB8888 source buffers
>> * @fb: DRM framebuffer
>> * @clip: Clip rectangle area to copy
>> *
>> * Drivers can use this function for RGB332 devices that don't natively support XRGB8888.
>> */
>> -void drm_fb_xrgb8888_to_rgb332(void *dst, unsigned int dst_pitch, const void *src,
>> - const struct drm_framebuffer *fb, const struct drm_rect *clip)
>> +void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pitch,
>> + const struct iosys_map *vmap, const struct drm_framebuffer *fb,
>> + const struct drm_rect *clip)
>> {
>> - drm_fb_xfrm(dst, dst_pitch, 1, src, fb, clip, false, drm_fb_xrgb8888_to_rgb332_line);
>> + static const unsigned int default_dst_pitch[DRM_FORMAT_MAX_PLANES] = {
>> + 0, 0, 0, 0
>> + };
>> +
>> + if (!dst_pitch)
>> + dst_pitch = default_dst_pitch;
>> +
>> + if (dst[0].is_iomem)
>> + drm_fb_xfrm_toio(dst[0].vaddr_iomem, dst_pitch[0], 1, vmap[0].vaddr, fb, clip,
>> + false, drm_fb_xrgb8888_to_rgb332_line);
>> + else
>> + drm_fb_xfrm(dst[0].vaddr, dst_pitch[0], 1, vmap[0].vaddr, fb, clip,
>> + false, drm_fb_xrgb8888_to_rgb332_line);
>> }
>> EXPORT_SYMBOL(drm_fb_xrgb8888_to_rgb332);
>>
>> diff --git a/drivers/gpu/drm/gud/gud_pipe.c b/drivers/gpu/drm/gud/gud_pipe.c
>> index a15cda9ba058..426a3ae6cc50 100644
>> --- a/drivers/gpu/drm/gud/gud_pipe.c
>> +++ b/drivers/gpu/drm/gud/gud_pipe.c
>> @@ -196,7 +196,7 @@ static int gud_prep_flush(struct gud_device *gdrm, struct drm_framebuffer *fb,
>> } else if (format->format == DRM_FORMAT_R8) {
>> drm_fb_xrgb8888_to_gray8(buf, 0, vaddr, fb, rect);
>> } else if (format->format == DRM_FORMAT_RGB332) {
>> - drm_fb_xrgb8888_to_rgb332(buf, 0, vaddr, fb, rect);
>> + drm_fb_xrgb8888_to_rgb332(&dst, NULL, map_data, fb, rect);
>> } else if (format->format == DRM_FORMAT_RGB565) {
>> drm_fb_xrgb8888_to_rgb565(buf, 0, vaddr, fb, rect, gud_is_big_endian());
>> } else if (format->format == DRM_FORMAT_RGB888) {
>> diff --git a/drivers/gpu/drm/tests/drm_format_helper_test.c b/drivers/gpu/drm/tests/drm_format_helper_test.c
>> index 98583bf56044..b74dba06f704 100644
>> --- a/drivers/gpu/drm/tests/drm_format_helper_test.c
>> +++ b/drivers/gpu/drm/tests/drm_format_helper_test.c
>> @@ -124,7 +124,8 @@ static void xrgb8888_to_rgb332_test(struct kunit *test)
>> {
>> const struct xrgb8888_to_rgb332_case *params = test->param_value;
>> size_t dst_size;
>> - __u8 *dst = NULL;
>> + struct iosys_map dst, xrgb8888;
>> + __u8 *buf = NULL;
>>
>> struct drm_framebuffer fb = {
>> .format = drm_format_info(DRM_FORMAT_XRGB8888),
>> @@ -135,12 +136,13 @@ static void xrgb8888_to_rgb332_test(struct kunit *test)
>> ¶ms->clip);
>> KUNIT_ASSERT_GT(test, dst_size, 0);
>>
>> - dst = kunit_kzalloc(test, dst_size, GFP_KERNEL);
>> - KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dst);
>> + buf = kunit_kzalloc(test, dst_size, GFP_KERNEL);
>> + KUNIT_ASSERT_NOT_ERR_OR_NULL(test, buf);
>>
>> - drm_fb_xrgb8888_to_rgb332(dst, params->dst_pitch, params->xrgb8888,
>> - &fb, ¶ms->clip);
>> - KUNIT_EXPECT_EQ(test, memcmp(dst, params->expected, dst_size), 0);
>> + iosys_map_set_vaddr(&dst, buf);
>> + iosys_map_set_vaddr(&xrgb8888, (void __force *)params->xrgb8888);
>> + drm_fb_xrgb8888_to_rgb332(&dst, ¶ms->dst_pitch, &xrgb8888, &fb, ¶ms->clip);
>> + KUNIT_EXPECT_EQ(test, memcmp(buf, params->expected, dst_size), 0);
>> }
>>
>> static struct kunit_case drm_format_helper_test_cases[] = {
>> diff --git a/include/drm/drm_format_helper.h b/include/drm/drm_format_helper.h
>> index 60944feaa936..3c28f099e3ed 100644
>> --- a/include/drm/drm_format_helper.h
>> +++ b/include/drm/drm_format_helper.h
>> @@ -20,8 +20,9 @@ void drm_fb_memcpy(struct iosys_map *dst, const unsigned int *dst_pitch,
>> void drm_fb_swab(struct iosys_map *dst, const unsigned int *dst_pitch,
>> const struct iosys_map *vmap, const struct drm_framebuffer *fb,
>> const struct drm_rect *clip, bool cached);
>> -void drm_fb_xrgb8888_to_rgb332(void *dst, unsigned int dst_pitch, const void *vaddr,
>> - const struct drm_framebuffer *fb, const struct drm_rect *clip);
>> +void drm_fb_xrgb8888_to_rgb332(struct iosys_map *dst, const unsigned int *dst_pitch,
>> + const struct iosys_map *vmap, const struct drm_framebuffer *fb,
>> + const struct drm_rect *clip);
>> void drm_fb_xrgb8888_to_rgb565(void *dst, unsigned int dst_pitch, const void *vaddr,
>> const struct drm_framebuffer *fb, const struct drm_rect *clip,
>> bool swab);
>> --
>> 2.37.1
>>
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Ivo Totev
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