linux-kernel - Re: [Linaro-mm-sig] [PATCH v4 07/21] drm/omapdrm: Prepare to dynamic dma-buf locking specification

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Message-ID: <06cad130-4b0d-a894-d444-21b5ee5b5a63@gmail.com>
Date:   Thu, 1 Sep 2022 08:45:40 +0200
From:   Christian König <ckoenig.leichtzumerken@...il.com>
To:     Dmitry Osipenko <dmitry.osipenko@...labora.com>,
        David Airlie <airlied@...ux.ie>,
        Gerd Hoffmann <kraxel@...hat.com>,
        Gurchetan Singh <gurchetansingh@...omium.org>,
        Chia-I Wu <olvaffe@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Daniel Almeida <daniel.almeida@...labora.com>,
        Gert Wollny <gert.wollny@...labora.com>,
        Gustavo Padovan <gustavo.padovan@...labora.com>,
        Daniel Stone <daniel@...ishbar.org>,
        Tomeu Vizoso <tomeu.vizoso@...labora.com>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        Rob Clark <robdclark@...il.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        Thierry Reding <thierry.reding@...il.com>,
        Tomasz Figa <tfiga@...omium.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Alex Deucher <alexander.deucher@....com>,
        Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        Thomas Hellström <thomas_os@...pmail.org>,
        Qiang Yu <yuq825@...il.com>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>,
        Amol Maheshwari <amahesh@....qualcomm.com>,
        Jason Gunthorpe <jgg@...pe.ca>,
        Leon Romanovsky <leon@...nel.org>,
        Juergen Gross <jgross@...e.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
        Tomi Valkeinen <tomba@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Lucas Stach <l.stach@...gutronix.de>,
        Christian Gmeiner <christian.gmeiner@...il.com>
Cc:     dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        Dmitry Osipenko <digetx@...il.com>,
        linux-media@...r.kernel.org, linaro-mm-sig@...ts.linaro.org,
        amd-gfx@...ts.freedesktop.org, intel-gfx@...ts.freedesktop.org,
        kernel@...labora.com, virtualization@...ts.linux-foundation.org,
        linux-rdma@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [Linaro-mm-sig] [PATCH v4 07/21] drm/omapdrm: Prepare to dynamic
 dma-buf locking specification

Am 31.08.22 um 17:37 schrieb Dmitry Osipenko:
> Prepare OMAP DRM driver to the common dynamic dma-buf locking convention
> by starting to use the unlocked versions of dma-buf API functions.
>
> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@...labora.com>

Acked-by: Christian König <christian.koenig@....com>

> ---
>   drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 4 ++--
>   1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
> index 393f82e26927..8e194dbc9506 100644
> --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
> +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
> @@ -125,7 +125,7 @@ struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
>   
>   	get_dma_buf(dma_buf);
>   
> -	sgt = dma_buf_map_attachment(attach, DMA_TO_DEVICE);
> +	sgt = dma_buf_map_attachment_unlocked(attach, DMA_TO_DEVICE);
>   	if (IS_ERR(sgt)) {
>   		ret = PTR_ERR(sgt);
>   		goto fail_detach;
> @@ -142,7 +142,7 @@ struct drm_gem_object *omap_gem_prime_import(struct drm_device *dev,
>   	return obj;
>   
>   fail_unmap:
> -	dma_buf_unmap_attachment(attach, sgt, DMA_TO_DEVICE);
> +	dma_buf_unmap_attachment_unlocked(attach, sgt, DMA_TO_DEVICE);
>   fail_detach:
>   	dma_buf_detach(dma_buf, attach);
>   	dma_buf_put(dma_buf);