This patch forces all GEM buffers to have pitch aligned at least to 8 pixels. This is a common requirement for various Exynos IPP blocks, which otherwise won't be able to operate on buffers of random size. Signed-off-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> --- drivers/gpu/drm/exynos/exynos_drm_drv.h | 2 ++ drivers/gpu/drm/exynos/exynos_drm_gem.c | 2 +- 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h index 9ed52b04c0ba..0890e6709f10 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h @@ -24,6 +24,8 @@ #define DEFAULT_WIN 0 +#define EXYNOS_DRM_PITCH_ALIGN 8 + #define EXYNOS_BAD_PIXEL_FORMAT 0xffffffffu #define to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base) diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c index 252eb301470c..b5db6e6cc043 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_gem.c +++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c @@ -417,7 +417,7 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv, * with DRM_IOCTL_MODE_CREATE_DUMB command. */ - args->pitch = args->width * ((args->bpp + 7) / 8); + args->pitch = roundup(args->width, EXYNOS_DRM_PITCH_ALIGN) * ((args->bpp + 7) / 8); args->size = args->pitch * args->height; if (is_drm_iommu_supported(dev)) -- 1.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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