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bh=vHtNG5YY7oqAEcnnEFXV1qkzWXHTgkZmEB/ZXAxtcsE=; b=BiHVa6ESXg/6tzcoGrAe2zEkzOWJXOFY29Uer91yOv90o+Y0xVT1D+y5iZeI2tfoNc qQryFKdOaDoj33AhAqfsjijksHdYVid1QrsoMC5f5gnlbfLsATapWs5nJuEH0ceaPuBB iFa+k0S5wetutvCm4qj5nICwe2pNIgchYvz6PKoUbSOCHW9H5OoEFa2i+IhAkIsh9VxB N6CaskddPTzsWiNpYNGanyLgTAscmKXsiNQr7/9hUPsG88H9tq73u65jC6hVfNMZBVyq pCd1OZl0l2GmDXmr+Y1TMExusXaul4HsrQ8Rhkk+jxHaRrVFCDAOAVsZZeMlKaUfy1hF A2YQ== X-Gm-Message-State: AA+aEWaZo+nAvN7XvimveYWJnoWHfrtdUXTwieeQVckm1kyhqGPJiKgw KJFnwM/sr6l5Y52jAtM4LBngB/Nl X-Google-Smtp-Source: AFSGD/VztJFrJiCc5TxrvjdoAMM5foV3+t6D91QTlRMzDwrlUkxArWBo7WpY83vLc2dZ2XXJU04Cxw== X-Received: by 2002:a17:902:8a8a:: with SMTP id p10mr14060709plo.50.1545077982019; Mon, 17 Dec 2018 12:19:42 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([103.227.98.208]) by smtp.gmail.com with ESMTPSA id u87sm31872783pfi.2.2018.12.17.12.19.40 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 17 Dec 2018 12:19:41 -0800 (PST) Date: Tue, 18 Dec 2018 01:53:34 +0530 From: Souptick Joarder To: akpm@linux-foundation.org, willy@infradead.org, mhocko@suse.com, hjc@rock-chips.com, heiko@sntech.de, airlied@linux.ie Subject: [PATCH v4 4/9] drm/rockchip/rockchip_drm_gem.c: Convert to use vm_insert_range Message-ID: <20181217202334.GA11758@jordon-HP-15-Notebook-PC> MIME-Version: 1.0 Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20181217_121952_977908_F19DE372 X-CRM114-Status: GOOD ( 14.57 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-mm@kvack.org, dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rockchip@lists.infradead.org Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+patchwork-linux-rockchip=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Tested-by: Heiko Stuebner Acked-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 19 ++----------------- 1 file changed, 2 insertions(+), 17 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index a8db758..8279084 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -221,26 +221,11 @@ static int rockchip_drm_gem_object_mmap_iommu(struct drm_gem_object *obj, struct vm_area_struct *vma) { struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); - unsigned int i, count = obj->size >> PAGE_SHIFT; unsigned long user_count = vma_pages(vma); - unsigned long uaddr = vma->vm_start; unsigned long offset = vma->vm_pgoff; - unsigned long end = user_count + offset; - int ret; - - if (user_count == 0) - return -ENXIO; - if (end > count) - return -ENXIO; - for (i = offset; i < end; i++) { - ret = vm_insert_page(vma, uaddr, rk_obj->pages[i]); - if (ret) - return ret; - uaddr += PAGE_SIZE; - } - - return 0; + return vm_insert_range(vma, vma->vm_start, rk_obj->pages + offset, + user_count - offset); } static int rockchip_drm_gem_object_mmap_dma(struct drm_gem_object *obj,