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bh=+cqpEOgVsQX6FuKbkjkqnPdK6JJEhfhSEvMIkCtIVgk=; b=k5e7Hd9ubhEpkjhHYq2wW+FfuZopEhKvbQXZsxBU1AU9Ynk+2e3T+bTb4DCyeqiAdu 5mW5tA4GquKc//yi+gDewc9jjumO2jikIhMQjYsD71VOk4QcnEkMeepvhqZFNsGd27xU 4RTYRFNPIIjtbHYIUBdyG2stPOpwLZvnkPhn4sUC8800LocRp3anLy3fA9DSnHwr8QAA Z3jtykzUj5Vi/y4V7gig+dY3bvu7tjVymlmXcYICQIdqRqFx2k/pigP5gTravxGwbgpV HvWKLwKiJnRy2gnsF3sGBubNzslUWiqUcWi9P/gsLmxW+g91OmfnAd5Gh6aDBhZTUn/0 oekg== X-Gm-Message-State: AHQUAuYN5Pj98bGQEw/i6hlvN+v9wtjyfWLgHkIQ4gxeMCx2WVz/nyeP ui94bu9uiYidHx3l1QHL/10bWrMR X-Google-Smtp-Source: AHgI3IZkR4bUjIEoJN1Iweg1I643mATKe+Qg6hd5B30hfMqsOz0sR+gJKonzI4eh8rnzPur2hIb3aQ== X-Received: by 2002:a17:902:d83:: with SMTP id 3mr7519491plv.43.1550198464676; Thu, 14 Feb 2019 18:41:04 -0800 (PST) Received: from jordon-HP-15-Notebook-PC ([49.207.53.51]) by smtp.gmail.com with ESMTPSA id g87sm9521109pfe.43.2019.02.14.18.41.03 (version=TLS1 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Thu, 14 Feb 2019 18:41:03 -0800 (PST) Date: Fri, 15 Feb 2019 08:15:24 +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, linux@armlinux.org.uk, robin.murphy@arm.com Subject: [PATCH v4 4/9] drm/rockchip/rockchip_drm_gem.c: Convert to use vm_map_pages() Message-ID: <20190215024524.GA26405@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-20190214_184105_549488_8F6D41D1 X-CRM114-Status: GOOD ( 13.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: 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-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP Convert to use vm_map_pages() to map range of kernel memory to user vma. Tested on Rockchip hardware and display is working, including talking to Lima via prime. Signed-off-by: Souptick Joarder Tested-by: Heiko Stuebner --- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 17 ++--------------- 1 file changed, 2 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index a8db758..a2ebb08 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -221,26 +221,13 @@ 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 int 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_map_pages(vma, rk_obj->pages, count); } static int rockchip_drm_gem_object_mmap_dma(struct drm_gem_object *obj,