Message ID | 20221017172229.42269-18-dmitry.osipenko@collabora.com |
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State | New |
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(109-252-119-114.nat.spd-mgts.ru [109.252.119.114]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: dmitry.osipenko) by madras.collabora.co.uk (Postfix) with ESMTPSA id 715C5660239A; Mon, 17 Oct 2022 18:25:13 +0100 (BST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1666027517; bh=eaLjCraTT1GPpkqMnTrFN+ZZRUAD0dWcnDH9iWQk4VI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ixNK8eohTZgM2hHUpOqkP/I1+ZB7GD4+Z60Drk4AVVEZG/+20R9WWaGDvdVAV7cZH WeXOID4YN2Y7kPUxJK7df3J0vPzstg4yys3ZfjmVsKXOwrxHDw9xyEuKT6tAHgCR5W oCHvK69pbMyBVExD6g/rtvRiNgbfG0+oWjruHDpUiVhAIAe8sluf4sj/BH42tLGRFM VJAsK1ud0P03KUjJiG5ZOx/Igribw+Gt6AOziTQDUbkx+WxQROg7Dnu9R90QmqlnON VVOt86H40NG7i/aigFJRg6wIKosNxFUtGR7whUXP++xAYpk9Yib5upxLekMRAojW5U 5YN8YeQcX9EGQ== From: Dmitry Osipenko <dmitry.osipenko@collabora.com> To: David Airlie <airlied@linux.ie>, Gerd Hoffmann <kraxel@redhat.com>, Gurchetan Singh <gurchetansingh@chromium.org>, Chia-I Wu <olvaffe@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Daniel Almeida <daniel.almeida@collabora.com>, Gert Wollny <gert.wollny@collabora.com>, Gustavo Padovan <gustavo.padovan@collabora.com>, Daniel Stone <daniel@fooishbar.org>, Tomeu Vizoso <tomeu.vizoso@collabora.com>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, Rob Clark <robdclark@gmail.com>, Sumit Semwal <sumit.semwal@linaro.org>, =?utf-8?q?Christian_K=C3=B6nig?= <christian.koenig@amd.com>, "Pan, Xinhui" <Xinhui.Pan@amd.com>, Thierry Reding <thierry.reding@gmail.com>, Tomasz Figa <tfiga@chromium.org>, Marek Szyprowski <m.szyprowski@samsung.com>, Mauro Carvalho Chehab <mchehab@kernel.org>, Alex Deucher <alexander.deucher@amd.com>, Jani Nikula <jani.nikula@linux.intel.com>, Joonas Lahtinen <joonas.lahtinen@linux.intel.com>, Rodrigo Vivi <rodrigo.vivi@intel.com>, Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>, =?utf-8?q?Thomas_Hellstr?= =?utf-8?q?=C3=B6m?= <thomas_os@shipmail.org>, Qiang Yu <yuq825@gmail.com>, Srinivas Kandagatla <srinivas.kandagatla@linaro.org>, Amol Maheshwari <amahesh@qti.qualcomm.com>, Jason Gunthorpe <jgg@ziepe.ca>, Leon Romanovsky <leon@kernel.org>, Juergen Gross <jgross@suse.com>, Stefano Stabellini <sstabellini@kernel.org>, Oleksandr Tyshchenko <oleksandr_tyshchenko@epam.com>, Tomi Valkeinen <tomba@kernel.org>, Russell King <linux@armlinux.org.uk>, Lucas Stach <l.stach@pengutronix.de>, Christian Gmeiner <christian.gmeiner@gmail.com>, Ruhl Michael J <michael.j.ruhl@intel.com> Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, Dmitry Osipenko <digetx@gmail.com>, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, amd-gfx@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, kernel@collabora.com, virtualization@lists.linux-foundation.org, linux-rdma@vger.kernel.org, linux-arm-msm@vger.kernel.org Subject: [PATCH v7 17/21] dma-buf: Move dma_buf_map_attachment() to dynamic locking specification Date: Mon, 17 Oct 2022 20:22:25 +0300 Message-Id: <20221017172229.42269-18-dmitry.osipenko@collabora.com> X-Mailer: git-send-email 2.37.3 In-Reply-To: <20221017172229.42269-1-dmitry.osipenko@collabora.com> References: <20221017172229.42269-1-dmitry.osipenko@collabora.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1746956696350180772?= X-GMAIL-MSGID: =?utf-8?q?1746956696350180772?= |
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Move all drivers to a common dma-buf locking convention
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Commit Message
Dmitry Osipenko
Oct. 17, 2022, 5:22 p.m. UTC
Move dma-buf attachment mapping functions to the dynamic locking specification by asserting that the reservation lock is held. Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> --- drivers/dma-buf/dma-buf.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-)
diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c index d685a5adb122..f54c649f922a 100644 --- a/drivers/dma-buf/dma-buf.c +++ b/drivers/dma-buf/dma-buf.c @@ -1038,8 +1038,7 @@ struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *attach, if (WARN_ON(!attach || !attach->dmabuf)) return ERR_PTR(-EINVAL); - if (dma_buf_attachment_is_dynamic(attach)) - dma_resv_assert_held(attach->dmabuf->resv); + dma_resv_assert_held(attach->dmabuf->resv); if (attach->sgt) { /* @@ -1054,7 +1053,6 @@ struct sg_table *dma_buf_map_attachment(struct dma_buf_attachment *attach, } if (dma_buf_is_dynamic(attach->dmabuf)) { - dma_resv_assert_held(attach->dmabuf->resv); if (!IS_ENABLED(CONFIG_DMABUF_MOVE_NOTIFY)) { r = attach->dmabuf->ops->pin(attach); if (r) @@ -1143,15 +1141,11 @@ void dma_buf_unmap_attachment(struct dma_buf_attachment *attach, if (WARN_ON(!attach || !attach->dmabuf || !sg_table)) return; - if (dma_buf_attachment_is_dynamic(attach)) - dma_resv_assert_held(attach->dmabuf->resv); + dma_resv_assert_held(attach->dmabuf->resv); if (attach->sgt == sg_table) return; - if (dma_buf_is_dynamic(attach->dmabuf)) - dma_resv_assert_held(attach->dmabuf->resv); - __unmap_dma_buf(attach, sg_table, direction); if (dma_buf_is_dynamic(attach->dmabuf) &&