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a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1623237619; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=uHgjG881Tzc6TF1wm3lJNykWl3nzYgQpZTifsGlExSU=; b=eGgR9KjAmEUGAXpoJk3a/G6GTIkV9mSVYZLHZAU/NHGNMndowHzlD+P9aLIVMDFR5MbUPm KIutgtmlNht3fHCg== Received: from director2.suse.de ([192.168.254.72]) by imap3-int with ESMTPSA id 0G1AMfKjwGBTUgAALh3uQQ (envelope-from ); Wed, 09 Jun 2021 11:20:18 +0000 From: Thomas Zimmermann To: daniel@ffwll.ch, mripard@kernel.org, maarten.lankhorst@linux.intel.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, krzysztof.kozlowski@canonical.com, chunkuang.hu@kernel.org, p.zabel@pengutronix.de, matthias.bgg@gmail.com, robdclark@gmail.com, sean@poorly.run, airlied@redhat.com, kraxel@redhat.com, hjc@rock-chips.com, heiko@sntech.de, oleksandr_andrushchenko@epam.com, sumit.semwal@linaro.org, christian.koenig@amd.com Cc: dri-devel@lists.freedesktop.org, etnaviv@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, virtualization@lists.linux-foundation.org, spice-devel@lists.freedesktop.org, linux-rockchip@lists.infradead.org, xen-devel@lists.xenproject.org, linux-media@vger.kernel.org, linaro-mm-sig@lists.linaro.org, Thomas Zimmermann Subject: [PATCH 8/9] drm/rockchip: Implement mmap as GEM object function Date: Wed, 9 Jun 2021 13:20:11 +0200 Message-Id: <20210609112012.10019-9-tzimmermann@suse.de> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210609112012.10019-1-tzimmermann@suse.de> References: <20210609112012.10019-1-tzimmermann@suse.de> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210609_042021_139436_230724DB X-CRM114-Status: GOOD ( 16.65 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective rockchip functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann --- drivers/gpu/drm/rockchip/rockchip_drm_drv.c | 13 +----- drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 3 +- drivers/gpu/drm/rockchip/rockchip_drm_gem.c | 44 +++++-------------- drivers/gpu/drm/rockchip/rockchip_drm_gem.h | 7 --- 4 files changed, 15 insertions(+), 52 deletions(-) diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c index b730b8d5d949..2e3ab573a817 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_drv.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_drv.c @@ -208,16 +208,7 @@ static void rockchip_drm_unbind(struct device *dev) drm_dev_put(drm_dev); } -static const struct file_operations rockchip_drm_driver_fops = { - .owner = THIS_MODULE, - .open = drm_open, - .mmap = rockchip_gem_mmap, - .poll = drm_poll, - .read = drm_read, - .unlocked_ioctl = drm_ioctl, - .compat_ioctl = drm_compat_ioctl, - .release = drm_release, -}; +DEFINE_DRM_GEM_FOPS(rockchip_drm_driver_fops); static const struct drm_driver rockchip_drm_driver = { .driver_features = DRIVER_MODESET | DRIVER_GEM | DRIVER_ATOMIC, @@ -226,7 +217,7 @@ static const struct drm_driver rockchip_drm_driver = { .prime_handle_to_fd = drm_gem_prime_handle_to_fd, .prime_fd_to_handle = drm_gem_prime_fd_to_handle, .gem_prime_import_sg_table = rockchip_gem_prime_import_sg_table, - .gem_prime_mmap = rockchip_gem_mmap_buf, + .gem_prime_mmap = drm_gem_prime_mmap, .fops = &rockchip_drm_driver_fops, .name = DRIVER_NAME, .desc = DRIVER_DESC, diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c index 2fdc455c4ad7..d8418dd39d0e 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c @@ -7,6 +7,7 @@ #include #include #include +#include #include #include "rockchip_drm_drv.h" @@ -24,7 +25,7 @@ static int rockchip_fbdev_mmap(struct fb_info *info, struct drm_fb_helper *helper = info->par; struct rockchip_drm_private *private = to_drm_private(helper); - return rockchip_gem_mmap_buf(private->fbdev_bo, vma); + return drm_gem_prime_mmap(private->fbdev_bo, vma); } static const struct fb_ops rockchip_drm_fbdev_ops = { diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c index 7971f57436dd..63eb73b624aa 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.c +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.c @@ -240,12 +240,22 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj, int ret; struct rockchip_gem_object *rk_obj = to_rockchip_obj(obj); + /* + * Set vm_pgoff (used as a fake buffer offset by DRM) to 0 and map the + * whole buffer from the start. + */ + vma->vm_pgoff = 0; + /* * We allocated a struct page table for rk_obj, so clear * VM_PFNMAP flag that was set by drm_gem_mmap_obj()/drm_gem_mmap(). */ + vma->vm_flags |= VM_IO | VM_DONTEXPAND | VM_DONTDUMP; vma->vm_flags &= ~VM_PFNMAP; + vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags)); + vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); + if (rk_obj->pages) ret = rockchip_drm_gem_object_mmap_iommu(obj, vma); else @@ -257,39 +267,6 @@ static int rockchip_drm_gem_object_mmap(struct drm_gem_object *obj, return ret; } -int rockchip_gem_mmap_buf(struct drm_gem_object *obj, - struct vm_area_struct *vma) -{ - int ret; - - ret = drm_gem_mmap_obj(obj, obj->size, vma); - if (ret) - return ret; - - return rockchip_drm_gem_object_mmap(obj, vma); -} - -/* drm driver mmap file operations */ -int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma) -{ - struct drm_gem_object *obj; - int ret; - - ret = drm_gem_mmap(filp, vma); - if (ret) - return ret; - - /* - * Set vm_pgoff (used as a fake buffer offset by DRM) to 0 and map the - * whole buffer from the start. - */ - vma->vm_pgoff = 0; - - obj = vma->vm_private_data; - - return rockchip_drm_gem_object_mmap(obj, vma); -} - static void rockchip_gem_release_object(struct rockchip_gem_object *rk_obj) { drm_gem_object_release(&rk_obj->base); @@ -301,6 +278,7 @@ static const struct drm_gem_object_funcs rockchip_gem_object_funcs = { .get_sg_table = rockchip_gem_prime_get_sg_table, .vmap = rockchip_gem_prime_vmap, .vunmap = rockchip_gem_prime_vunmap, + .mmap = rockchip_drm_gem_object_mmap, .vm_ops = &drm_gem_cma_vm_ops, }; diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h index 5a70a56cd406..47c1861eece0 100644 --- a/drivers/gpu/drm/rockchip/rockchip_drm_gem.h +++ b/drivers/gpu/drm/rockchip/rockchip_drm_gem.h @@ -34,13 +34,6 @@ rockchip_gem_prime_import_sg_table(struct drm_device *dev, int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map); void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map); -/* drm driver mmap file operations */ -int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma); - -/* mmap a gem object to userspace. */ -int rockchip_gem_mmap_buf(struct drm_gem_object *obj, - struct vm_area_struct *vma); - struct rockchip_gem_object * rockchip_gem_create_object(struct drm_device *drm, unsigned int size, bool alloc_kmap);