From: Gerd Hoffmann <kraxel@redhat.com>
To: dri-devel@lists.freedesktop.org
Cc: Gerd Hoffmann <kraxel@redhat.com>,
Dave Airlie <airlied@redhat.com>, David Airlie <airlied@linux.ie>,
Daniel Vetter <daniel@ffwll.ch>,
virtualization@lists.linux-foundation.org (open list:DRM DRIVER
FOR QXL VIRTUAL GPU),
spice-devel@lists.freedesktop.org (open list:DRM DRIVER FOR QXL
VIRTUAL GPU), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH 1/5] drm/qxl: drop qxl_ttm_fault
Date: Thu, 17 Oct 2019 15:26:34 +0200 [thread overview]
Message-ID: <20191017132638.9693-2-kraxel@redhat.com> (raw)
In-Reply-To: <20191017132638.9693-1-kraxel@redhat.com>
Not sure what this hook is supposed to do. vmf->vma->vm_private_data
should never be NULL, so the extra check in qxl_ttm_fault should have no
effect.
Drop it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/qxl/qxl_ttm.c | 27 +--------------------------
1 file changed, 1 insertion(+), 26 deletions(-)
diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index cbc6c2ba8630..dba925589e17 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -48,24 +48,8 @@ static struct qxl_device *qxl_get_qdev(struct ttm_bo_device *bdev)
return qdev;
}
-static struct vm_operations_struct qxl_ttm_vm_ops;
-static const struct vm_operations_struct *ttm_vm_ops;
-
-static vm_fault_t qxl_ttm_fault(struct vm_fault *vmf)
-{
- struct ttm_buffer_object *bo;
- vm_fault_t ret;
-
- bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data;
- if (bo == NULL)
- return VM_FAULT_NOPAGE;
- ret = ttm_vm_ops->fault(vmf);
- return ret;
-}
-
int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
{
- int r;
struct drm_file *file_priv = filp->private_data;
struct qxl_device *qdev = file_priv->minor->dev->dev_private;
@@ -77,16 +61,7 @@ int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
DRM_DEBUG_DRIVER("filp->private_data = 0x%p, vma->vm_pgoff = %lx\n",
filp->private_data, vma->vm_pgoff);
- r = ttm_bo_mmap(filp, vma, &qdev->mman.bdev);
- if (unlikely(r != 0))
- return r;
- if (unlikely(ttm_vm_ops == NULL)) {
- ttm_vm_ops = vma->vm_ops;
- qxl_ttm_vm_ops = *ttm_vm_ops;
- qxl_ttm_vm_ops.fault = &qxl_ttm_fault;
- }
- vma->vm_ops = &qxl_ttm_vm_ops;
- return 0;
+ return ttm_bo_mmap(filp, vma, &qdev->mman.bdev);
}
static int qxl_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
--
2.18.1
next parent reply other threads:[~2019-10-17 13:26 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20191017132638.9693-1-kraxel@redhat.com>
2019-10-17 13:26 ` Gerd Hoffmann [this message]
2019-10-17 13:26 ` [PATCH 2/5] drm/qxl: switch qxl to &drm_gem_object_funcs.mmap Gerd Hoffmann
2019-10-17 13:26 ` [PATCH 3/5] drm/qxl: drop verify_access Gerd Hoffmann
2019-10-17 13:26 ` [PATCH 4/5] drm/qxl: use DEFINE_DRM_GEM_FOPS() Gerd Hoffmann
2019-10-17 13:26 ` [PATCH 5/5] drm/qxl: allocate small objects top-down Gerd Hoffmann
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