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From: Thomas Zimmermann <tzimmermann@suse.de>
To: alexander.deucher@amd.com, christian.koenig@amd.com,
	airlied@linux.ie, daniel@ffwll.ch, bskeggs@redhat.com,
	ray.huang@amd.com, linux-graphics-maintainer@vmware.com,
	sroland@vmware.com, zackr@vmware.com, shashank.sharma@amd.com,
	sam@ravnborg.org, emil.velikov@collabora.com,
	Felix.Kuehling@amd.com, nirmoy.das@amd.com
Cc: nouveau@lists.freedesktop.org, amd-gfx@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org,
	Thomas Zimmermann <tzimmermann@suse.de>
Subject: [PATCH v3 6/7] drm/vmwgfx: Inline vmw_verify_access()
Date: Fri, 16 Apr 2021 15:31:45 +0200
Message-ID: <20210416133146.24825-7-tzimmermann@suse.de> (raw)
In-Reply-To: <20210416133146.24825-1-tzimmermann@suse.de>

Vmwgfx is the only user of the TTM's verify_access callback. Inline
the call and avoid the indirection through the function pointer.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Zack Rusin <zackr@vmware.com>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 9 ---------
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c   | 7 ++-----
 2 files changed, 2 insertions(+), 14 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 2dc031fe4a90..a079734f9d68 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -658,14 +658,6 @@ static void vmw_evict_flags(struct ttm_buffer_object *bo,
 	*placement = vmw_sys_placement;
 }
 
-static int vmw_verify_access(struct ttm_buffer_object *bo, struct file *filp)
-{
-	struct ttm_object_file *tfile =
-		vmw_fpriv((struct drm_file *)filp->private_data)->tfile;
-
-	return vmw_user_bo_verify_access(bo, tfile);
-}
-
 static int vmw_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
 {
 	struct vmw_private *dev_priv = container_of(bdev, struct vmw_private, bdev);
@@ -768,7 +760,6 @@ struct ttm_device_funcs vmw_bo_driver = {
 	.eviction_valuable = ttm_bo_eviction_valuable,
 	.evict_flags = vmw_evict_flags,
 	.move = vmw_move,
-	.verify_access = vmw_verify_access,
 	.swap_notify = vmw_swap_notify,
 	.io_mem_reserve = &vmw_ttm_io_mem_reserve,
 };
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
index c8b6543b4e39..e6b1f98ec99f 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_glue.c
@@ -67,6 +67,7 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma)
 	};
 	struct drm_file *file_priv = filp->private_data;
 	struct vmw_private *dev_priv = vmw_priv(file_priv->minor->dev);
+	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
 	struct ttm_device *bdev = &dev_priv->bdev;
 	struct ttm_buffer_object *bo;
 	int ret;
@@ -78,11 +79,7 @@ int vmw_mmap(struct file *filp, struct vm_area_struct *vma)
 	if (unlikely(!bo))
 		return -EINVAL;
 
-	if (unlikely(!bo->bdev->funcs->verify_access)) {
-		ret = -EPERM;
-		goto out_unref;
-	}
-	ret = bo->bdev->funcs->verify_access(bo, filp);
+	ret = vmw_user_bo_verify_access(bo, tfile);
 	if (unlikely(ret != 0))
 		goto out_unref;
 
-- 
2.31.1

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  parent reply index

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-04-16 13:31 [PATCH v3 0/7] drm: Clean up mmap for TTM-based GEM drivers Thomas Zimmermann
2021-04-16 13:31 ` [PATCH v3 1/7] drm/ttm: Don't override vm_ops callbacks, if set Thomas Zimmermann
2021-04-16 13:31 ` [PATCH v3 2/7] drm/amdgpu: Implement mmap as GEM object function Thomas Zimmermann
2021-04-16 13:31 ` [PATCH v3 3/7] drm/radeon: " Thomas Zimmermann
2021-04-16 13:31 ` [PATCH v3 4/7] drm/nouveau: " Thomas Zimmermann
2021-04-16 13:31 ` [PATCH v3 5/7] drm/vmwgfx: Inline ttm_bo_mmap() into vmwgfx driver Thomas Zimmermann
2021-04-16 13:46   ` Christian König
2021-04-16 13:51     ` Christian König
2021-04-20  7:51       ` Thomas Zimmermann
2021-04-20  8:51         ` Daniel Vetter
2021-04-20 20:22           ` Felix Kuehling
2021-04-20 20:53             ` Daniel Vetter
2021-04-21  7:01               ` Christian König
2021-04-21  9:12                 ` Daniel Vetter
2021-04-16 14:00     ` Thomas Zimmermann
2021-04-16 13:31 ` Thomas Zimmermann [this message]
2021-04-16 13:31 ` [PATCH v3 7/7] drm/ttm: Remove ttm_bo_mmap() and friends Thomas Zimmermann
2021-04-16 13:44 ` [PATCH v3 0/7] drm: Clean up mmap for TTM-based GEM drivers Christian König

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