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authorGerd Hoffmann <kraxel@redhat.com>2019-10-16 13:51:59 +0200
committerGerd Hoffmann <kraxel@redhat.com>2019-10-17 13:59:16 +0200
commit12067e0e89aa296ce994299aef26eddd612cf3c4 (patch)
treef43ac7fd4352294e07aaffed1b5bbadce6222464
parent24e25ea6d760b2492f2ab16a9bbb098fc3379819 (diff)
downloadlinux-12067e0e89aa296ce994299aef26eddd612cf3c4.tar.bz2
drm/ttm: rename ttm_fbdev_mmap
Rename ttm_fbdev_mmap to ttm_bo_mmap_obj. Move the vm_pgoff sanity check to amdgpu_bo_fbdev_mmap (only ttm_fbdev_mmap user in tree). The ttm_bo_mmap_obj function can now be used to map any buffer object. This allows to implement &drm_gem_object_funcs.mmap in gem ttm helpers. v3: patch added to series Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20191016115203.20095-8-kraxel@redhat.com
-rw-r--r--drivers/gpu/drm/amd/amdgpu/amdgpu_object.c5
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo_vm.c8
-rw-r--r--include/drm/ttm/ttm_bo_api.h10
3 files changed, 10 insertions, 13 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 1fead0e8b890..6f0b789a0b49 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -1058,7 +1058,10 @@ void amdgpu_bo_fini(struct amdgpu_device *adev)
int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
struct vm_area_struct *vma)
{
- return ttm_fbdev_mmap(vma, &bo->tbo);
+ if (vma->vm_pgoff != 0)
+ return -EACCES;
+
+ return ttm_bo_mmap_obj(vma, &bo->tbo);
}
/**
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 53345c0854d5..1a9db691f954 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -479,14 +479,10 @@ out_unref:
}
EXPORT_SYMBOL(ttm_bo_mmap);
-int ttm_fbdev_mmap(struct vm_area_struct *vma, struct ttm_buffer_object *bo)
+int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo)
{
- if (vma->vm_pgoff != 0)
- return -EACCES;
-
ttm_bo_get(bo);
-
ttm_bo_mmap_vma_setup(bo, vma);
return 0;
}
-EXPORT_SYMBOL(ttm_fbdev_mmap);
+EXPORT_SYMBOL(ttm_bo_mmap_obj);
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 43c4929a2171..d2277e06316d 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -710,16 +710,14 @@ int ttm_bo_kmap(struct ttm_buffer_object *bo, unsigned long start_page,
void ttm_bo_kunmap(struct ttm_bo_kmap_obj *map);
/**
- * ttm_fbdev_mmap - mmap fbdev memory backed by a ttm buffer object.
+ * ttm_bo_mmap_obj - mmap memory backed by a ttm buffer object.
*
* @vma: vma as input from the fbdev mmap method.
- * @bo: The bo backing the address space. The address space will
- * have the same size as the bo, and start at offset 0.
+ * @bo: The bo backing the address space.
*
- * This function is intended to be called by the fbdev mmap method
- * if the fbdev address space is to be backed by a bo.
+ * Maps a buffer object.
*/
-int ttm_fbdev_mmap(struct vm_area_struct *vma, struct ttm_buffer_object *bo);
+int ttm_bo_mmap_obj(struct vm_area_struct *vma, struct ttm_buffer_object *bo);
/**
* ttm_bo_mmap - mmap out of the ttm device address space.