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c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1755764544; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=tTaYlAfEhcn2uVekR/eKyCCb0utiuEYUU2dpdG6hXIE=; b=af8ECZUQi+6sLdcOKjYsVcJw/v2UWppwZZT7g9dY7W/ncsuDkQekKIWdNq0dQA5ciIDcON AYhl90JkKHx5CtDg== From: Thomas Zimmermann To: simona@ffwll.ch, airlied@gmail.com, mripard@kernel.org, maarten.lankhorst@linux.intel.com, geert@linux-m68k.org, tomi.valkeinen@ideasonboard.com Cc: dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, freedreno@lists.freedesktop.org, linux-arm-msm@vger.kernel.org, imx@lists.linux.dev, linux-samsung-soc@vger.kernel.org, nouveau@lists.freedesktop.org, virtualization@lists.linux.dev, spice-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-tegra@vger.kernel.org, intel-xe@lists.freedesktop.org, xen-devel@lists.xenproject.org, Thomas Zimmermann , David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu Subject: [PATCH v6 21/25] drm/virtio: Compute dumb-buffer sizes with drm_mode_size_dumb() Date: Thu, 21 Aug 2025 10:17:28 +0200 Message-ID: <20250821081918.79786-22-tzimmermann@suse.de> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20250821081918.79786-1-tzimmermann@suse.de> References: <20250821081918.79786-1-tzimmermann@suse.de> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-1.30 / 50.00]; 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charset="utf-8" Call drm_mode_size_dumb() to compute dumb-buffer scanline pitch and buffer size. Align the pitch to a multiple of 4. Signed-off-by: Thomas Zimmermann Cc: David Airlie Cc: Gerd Hoffmann Cc: Gurchetan Singh Cc: Chia-I Wu --- drivers/gpu/drm/virtio/virtgpu_gem.c | 11 +++++------ 1 file changed, 5 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/= virtgpu_gem.c index 90c99d83c4cf..7e515d6e781d 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -23,6 +23,7 @@ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ =20 +#include #include #include =20 @@ -66,15 +67,14 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_p= riv, struct virtio_gpu_object_params params =3D { 0 }; struct virtio_gpu_device *vgdev =3D dev->dev_private; int ret; - uint32_t pitch; + + ret =3D drm_mode_size_dumb(dev, args, SZ_4, 0); + if (ret) + return ret; =20 if (args->bpp !=3D 32) return -EINVAL; =20 - pitch =3D args->width * 4; - args->size =3D pitch * args->height; - args->size =3D ALIGN(args->size, PAGE_SIZE); - params.format =3D virtio_gpu_translate_format(DRM_FORMAT_HOST_XRGB8888); params.width =3D args->width; params.height =3D args->height; @@ -92,7 +92,6 @@ int virtio_gpu_mode_dumb_create(struct drm_file *file_pri= v, if (ret) goto fail; =20 - args->pitch =3D pitch; return ret; =20 fail: --=20 2.50.1