From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marek Szyprowski Subject: [PATCH v2 17/22] drm/exynos: gem: set default alignment for dumb GEM buffers Date: Mon, 30 Nov 2015 14:53:32 +0100 Message-ID: <1448891617-18830-18-git-send-email-m.szyprowski@samsung.com> References: <1448891617-18830-1-git-send-email-m.szyprowski@samsung.com> Return-path: Received: from mailout1.w1.samsung.com ([210.118.77.11]:53289 "EHLO mailout1.w1.samsung.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754245AbbK3Nx6 (ORCPT ); Mon, 30 Nov 2015 08:53:58 -0500 Received: from eucpsbgm2.samsung.com (unknown [203.254.199.245]) by mailout1.w1.samsung.com (Oracle Communications Messaging Server 7.0.5.31.0 64bit (built May 5 2014)) with ESMTP id <0NYM00BX7RXUPRB0@mailout1.w1.samsung.com> for linux-samsung-soc@vger.kernel.org; Mon, 30 Nov 2015 13:53:54 +0000 (GMT) In-reply-to: <1448891617-18830-1-git-send-email-m.szyprowski@samsung.com> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: dri-devel@lists.freedesktop.org, linux-samsung-soc@vger.kernel.org Cc: Marek Szyprowski , Inki Dae , Joonyoung Shim , Seung-Woo Kim , Andrzej Hajda , Krzysztof Kozlowski , Bartlomiej Zolnierkiewicz , Tobias Jakobi , Gustavo Padovan , Javier Martinez Canillas 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 --- 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 bb2e449a20c3..670f6d06a2a9 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 to_exynos_crtc(x) container_of(x, struct exynos_drm_crtc, base) #define to_exynos_plane(x) container_of(x, struct exynos_drm_plane, 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