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[24.155.109.49]) by smtp.googlemail.com with ESMTPSA id u130sm4122676oib.56.2019.10.21.14.45.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Oct 2019 14:45:58 -0700 (PDT) From: Rob Herring To: dri-devel@lists.freedesktop.org Subject: [PATCH 3/6] drm/cma-helper: Use the dma_*_attr API variant Date: Mon, 21 Oct 2019 16:45:47 -0500 Message-Id: <20191021214550.1461-4-robh@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191021214550.1461-1-robh@kernel.org> References: <20191021214550.1461-1-robh@kernel.org> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Neil Armstrong , David Airlie , Liviu Dudau , Laurent Pinchart , Yannick Fertre , Kevin Hilman , Xinwei Kong , Xinliang Liu , linux-rockchip@lists.infradead.org, Chen-Yu Tsai , Kieran Bingham , "James \(Qian\) Wang" , Alexandre Torgue , Chen Feng , linux-mediatek@lists.infradead.org, Matthias Brugger , Sean Paul , linux-arm-kernel@lists.infradead.org, Philippe Cornu , Vincent Abriou , Maxime Coquelin , Rongrong Zou Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" In preparation to allow DRM CMA users to adjust the DMA_ATTR_* flags, convert the CMA helper code to use the dma_*_attr APIs instead of the dma_*_wc variants. Only the DMA_ATTR_WRITE_COMBINE and DMA_ATTR_NO_WARN attributes are set in this commit, so there's no functional change. Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Sean Paul Cc: David Airlie Cc: Daniel Vetter Signed-off-by: Rob Herring Reviewed-by: Laurent Pinchart --- drivers/gpu/drm/drm_gem_cma_helper.c | 20 ++++++++++++-------- include/drm/drm_gem_cma_helper.h | 1 + 2 files changed, 13 insertions(+), 8 deletions(-) -- 2.20.1 diff --git a/drivers/gpu/drm/drm_gem_cma_helper.c b/drivers/gpu/drm/drm_gem_cma_helper.c index 12e98fb28229..4cebfe01e6ea 100644 --- a/drivers/gpu/drm/drm_gem_cma_helper.c +++ b/drivers/gpu/drm/drm_gem_cma_helper.c @@ -70,6 +70,7 @@ __drm_gem_cma_create(struct drm_device *drm, size_t size) goto error; } + cma_obj->dma_attrs |= DMA_ATTR_NO_WARN | DMA_ATTR_WRITE_COMBINE; return cma_obj; error: @@ -102,8 +103,9 @@ struct drm_gem_cma_object *drm_gem_cma_create(struct drm_device *drm, if (IS_ERR(cma_obj)) return cma_obj; - cma_obj->vaddr = dma_alloc_wc(drm->dev, size, &cma_obj->paddr, - GFP_KERNEL | __GFP_NOWARN); + cma_obj->vaddr = dma_alloc_attrs(drm->dev, size, &cma_obj->paddr, + GFP_KERNEL | __GFP_NOWARN, + cma_obj->dma_attrs); if (!cma_obj->vaddr) { dev_dbg(drm->dev, "failed to allocate buffer with size %zu\n", size); @@ -184,8 +186,9 @@ void drm_gem_cma_free_object(struct drm_gem_object *gem_obj) dma_buf_vunmap(gem_obj->import_attach->dmabuf, cma_obj->vaddr); drm_prime_gem_destroy(gem_obj, cma_obj->sgt); } else if (cma_obj->vaddr) { - dma_free_wc(gem_obj->dev->dev, cma_obj->base.size, - cma_obj->vaddr, cma_obj->paddr); + dma_free_attrs(gem_obj->dev->dev, cma_obj->base.size, + cma_obj->vaddr, cma_obj->paddr, + cma_obj->dma_attrs); } drm_gem_object_release(gem_obj); @@ -279,8 +282,9 @@ static int drm_gem_cma_mmap_obj(struct drm_gem_cma_object *cma_obj, vma->vm_flags &= ~VM_PFNMAP; vma->vm_pgoff = 0; - ret = dma_mmap_wc(cma_obj->base.dev->dev, vma, cma_obj->vaddr, - cma_obj->paddr, vma->vm_end - vma->vm_start); + ret = dma_mmap_attrs(cma_obj->base.dev->dev, vma, cma_obj->vaddr, + cma_obj->paddr, vma->vm_end - vma->vm_start, + cma_obj->dma_attrs); if (ret) drm_gem_vm_close(vma); @@ -434,8 +438,8 @@ struct sg_table *drm_gem_cma_prime_get_sg_table(struct drm_gem_object *obj) if (!sgt) return ERR_PTR(-ENOMEM); - ret = dma_get_sgtable(obj->dev->dev, sgt, cma_obj->vaddr, - cma_obj->paddr, obj->size); + ret = dma_get_sgtable_attrs(obj->dev->dev, sgt, cma_obj->vaddr, + cma_obj->paddr, obj->size, cma_obj->dma_attrs); if (ret < 0) goto out; diff --git a/include/drm/drm_gem_cma_helper.h b/include/drm/drm_gem_cma_helper.h index 947ac95eb24a..d042213c3595 100644 --- a/include/drm/drm_gem_cma_helper.h +++ b/include/drm/drm_gem_cma_helper.h @@ -24,6 +24,7 @@ struct drm_gem_cma_object { /* For objects with DMA memory allocated by GEM CMA */ void *vaddr; + unsigned long dma_attrs; }; #define to_drm_gem_cma_obj(gem_obj) \