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spf=none smtp.mailfrom=linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To:Message-Id:Date: Subject:To:From:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=tzFONZVrcGNrMHJCT2KAYy16snYCQxVydFZ+/C/jkeI=; b=RvtnZMupodQZRxndmFvJVYPhp PruWniUyHMoQMdHlZVWGOZpp96d+aBr1FJSPf39qA7HfIOe5hQcPisnZus1oUyUBfr3y+n9hmiRvM mcQ249TFLBe6WTYtWTShV2jhDy9Ku5xe43VpENiHZ2lc7K2ugoob8AZKSxS61GvlsMP2JKG5yA9dS pa5/4CLjAoNyAhUdceFA2Nq/59Qf9mqusXP/LIEyyBySY8GAsHrAqW7M5gwtCb8fk6Pt0lrQmLHcQ k3Gy7jXmhRVSSdbUJLkzpZ35Ta9ZBmOVCjNwb8sJOWvshmcwsXRdP3D9a/UUYSenVGz/VKPhXiJ4J dwUDQmkoQ==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUqdv-0004ZC-4s; Tue, 20 Oct 2020 12:21:31 +0000 Received: from mx2.suse.de ([195.135.220.15]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kUqdM-0004Ch-RK; Tue, 20 Oct 2020 12:21:01 +0000 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 946B1B1E1; Tue, 20 Oct 2020 12:20:54 +0000 (UTC) From: Thomas Zimmermann To: maarten.lankhorst@linux.intel.com, mripard@kernel.org, airlied@linux.ie, daniel@ffwll.ch, sam@ravnborg.org, alexander.deucher@amd.com, christian.koenig@amd.com, kraxel@redhat.com, l.stach@pengutronix.de, linux+etnaviv@armlinux.org.uk, christian.gmeiner@gmail.com, inki.dae@samsung.com, jy0922.shim@samsung.com, sw0312.kim@samsung.com, kyungmin.park@samsung.com, kgene@kernel.org, krzk@kernel.org, yuq825@gmail.com, bskeggs@redhat.com, robh@kernel.org, tomeu.vizoso@collabora.com, steven.price@arm.com, alyssa.rosenzweig@collabora.com, hjc@rock-chips.com, heiko@sntech.de, hdegoede@redhat.com, sean@poorly.run, eric@anholt.net, oleksandr_andrushchenko@epam.com, ray.huang@amd.com, sumit.semwal@linaro.org, emil.velikov@collabora.com, luben.tuikov@amd.com, apaneers@amd.com, linus.walleij@linaro.org, melissa.srw@gmail.com, chris@chris-wilson.co.uk, miaoqinglang@huawei.com Subject: [PATCH v5 07/10] drm/gem: Update internal GEM vmap/vunmap interfaces to use struct dma_buf_map Date: Tue, 20 Oct 2020 14:20:43 +0200 Message-Id: <20201020122046.31167-8-tzimmermann@suse.de> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201020122046.31167-1-tzimmermann@suse.de> References: <20201020122046.31167-1-tzimmermann@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201020_082057_228565_1FDFCD1E X-CRM114-Status: GOOD ( 20.64 ) X-Spam-Score: -2.3 (--) X-Spam-Report: SpamAssassin version 3.4.4 on merlin.infradead.org summary: Content analysis details: (-2.3 points) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 RCVD_IN_MSPIKE_H3 RBL: Good reputation (+3) [195.135.220.15 listed in wl.mailspike.net] -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [195.135.220.15 listed in list.dnswl.org] -0.0 SPF_PASS SPF: sender matches SPF record 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record 0.0 RCVD_IN_MSPIKE_WL Mailspike good senders X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-samsung-soc@vger.kernel.org, lima@lists.freedesktop.org, nouveau@lists.freedesktop.org, Daniel Vetter , etnaviv@lists.freedesktop.org, amd-gfx@lists.freedesktop.org, virtualization@lists.linux-foundation.org, linaro-mm-sig@lists.linaro.org, linux-rockchip@lists.infradead.org, dri-devel@lists.freedesktop.org, Thomas Zimmermann , xen-devel@lists.xenproject.org, spice-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-media@vger.kernel.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org GEM's vmap and vunmap interfaces now wrap memory pointers in struct dma_buf_map. Signed-off-by: Thomas Zimmermann Reviewed-by: Daniel Vetter Tested-by: Sam Ravnborg --- drivers/gpu/drm/drm_client.c | 18 +++++++++++------- drivers/gpu/drm/drm_gem.c | 26 +++++++++++++------------- drivers/gpu/drm/drm_internal.h | 5 +++-- drivers/gpu/drm/drm_prime.c | 14 ++++---------- 4 files changed, 31 insertions(+), 32 deletions(-) diff --git a/drivers/gpu/drm/drm_client.c b/drivers/gpu/drm/drm_client.c index 495f47d23d87..ac0082bed966 100644 --- a/drivers/gpu/drm/drm_client.c +++ b/drivers/gpu/drm/drm_client.c @@ -3,6 +3,7 @@ * Copyright 2018 Noralf Trønnes */ +#include #include #include #include @@ -304,7 +305,8 @@ drm_client_buffer_create(struct drm_client_dev *client, u32 width, u32 height, u */ void *drm_client_buffer_vmap(struct drm_client_buffer *buffer) { - void *vaddr; + struct dma_buf_map map; + int ret; if (buffer->vaddr) return buffer->vaddr; @@ -317,13 +319,13 @@ void *drm_client_buffer_vmap(struct drm_client_buffer *buffer) * fd_install step out of the driver backend hooks, to make that * final step optional for internal users. */ - vaddr = drm_gem_vmap(buffer->gem); - if (IS_ERR(vaddr)) - return vaddr; + ret = drm_gem_vmap(buffer->gem, &map); + if (ret) + return ERR_PTR(ret); - buffer->vaddr = vaddr; + buffer->vaddr = map.vaddr; - return vaddr; + return map.vaddr; } EXPORT_SYMBOL(drm_client_buffer_vmap); @@ -337,7 +339,9 @@ EXPORT_SYMBOL(drm_client_buffer_vmap); */ void drm_client_buffer_vunmap(struct drm_client_buffer *buffer) { - drm_gem_vunmap(buffer->gem, buffer->vaddr); + struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(buffer->vaddr); + + drm_gem_vunmap(buffer->gem, &map); buffer->vaddr = NULL; } EXPORT_SYMBOL(drm_client_buffer_vunmap); diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c index a89ad4570e3c..4d5fff4bd821 100644 --- a/drivers/gpu/drm/drm_gem.c +++ b/drivers/gpu/drm/drm_gem.c @@ -1206,32 +1206,32 @@ void drm_gem_unpin(struct drm_gem_object *obj) obj->funcs->unpin(obj); } -void *drm_gem_vmap(struct drm_gem_object *obj) +int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map) { - struct dma_buf_map map; int ret; if (!obj->funcs->vmap) - return ERR_PTR(-EOPNOTSUPP); + return -EOPNOTSUPP; - ret = obj->funcs->vmap(obj, &map); + ret = obj->funcs->vmap(obj, map); if (ret) - return ERR_PTR(ret); - else if (dma_buf_map_is_null(&map)) - return ERR_PTR(-ENOMEM); + return ret; + else if (dma_buf_map_is_null(map)) + return -ENOMEM; - return map.vaddr; + return 0; } -void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr) +void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map) { - struct dma_buf_map map = DMA_BUF_MAP_INIT_VADDR(vaddr); - - if (!vaddr) + if (dma_buf_map_is_null(map)) return; if (obj->funcs->vunmap) - obj->funcs->vunmap(obj, &map); + obj->funcs->vunmap(obj, map); + + /* Always set the mapping to NULL. Callers may rely on this. */ + dma_buf_map_clear(map); } /** diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h index b65865c630b0..58832d75a9bd 100644 --- a/drivers/gpu/drm/drm_internal.h +++ b/drivers/gpu/drm/drm_internal.h @@ -33,6 +33,7 @@ struct dentry; struct dma_buf; +struct dma_buf_map; struct drm_connector; struct drm_crtc; struct drm_framebuffer; @@ -187,8 +188,8 @@ void drm_gem_print_info(struct drm_printer *p, unsigned int indent, int drm_gem_pin(struct drm_gem_object *obj); void drm_gem_unpin(struct drm_gem_object *obj); -void *drm_gem_vmap(struct drm_gem_object *obj); -void drm_gem_vunmap(struct drm_gem_object *obj, void *vaddr); +int drm_gem_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); +void drm_gem_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); /* drm_debugfs.c drm_debugfs_crc.c */ #if defined(CONFIG_DEBUG_FS) diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c index 89e2a2496734..cb8fbeeb731b 100644 --- a/drivers/gpu/drm/drm_prime.c +++ b/drivers/gpu/drm/drm_prime.c @@ -667,21 +667,15 @@ EXPORT_SYMBOL(drm_gem_unmap_dma_buf); * * Sets up a kernel virtual mapping. This can be used as the &dma_buf_ops.vmap * callback. Calls into &drm_gem_object_funcs.vmap for device specific handling. + * The kernel virtual address is returned in map. * - * Returns the kernel virtual address or NULL on failure. + * Returns 0 on success or a negative errno code otherwise. */ int drm_gem_dmabuf_vmap(struct dma_buf *dma_buf, struct dma_buf_map *map) { struct drm_gem_object *obj = dma_buf->priv; - void *vaddr; - vaddr = drm_gem_vmap(obj); - if (IS_ERR(vaddr)) - return PTR_ERR(vaddr); - - dma_buf_map_set_vaddr(map, vaddr); - - return 0; + return drm_gem_vmap(obj, map); } EXPORT_SYMBOL(drm_gem_dmabuf_vmap); @@ -697,7 +691,7 @@ void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, struct dma_buf_map *map) { struct drm_gem_object *obj = dma_buf->priv; - drm_gem_vunmap(obj, map->vaddr); + drm_gem_vunmap(obj, map); } EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);