[Intel-gfx] [PATCH v6 14/15] drm/vma: Add a driver_private member to vma_node.

Thomas Hellström
2021-05-28T10:58:34Z

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>

This allows drivers to distinguish between different types of vma_node's.
The readonly flag was unused and is thus removed.

This is a temporary solution, until i915 is converted completely to
use ttm for bo's.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch> #irc
---
drivers/gpu/drm/drm_gem.c | 9 ---------
include/drm/drm_vma_manager.h | 2 +-
2 files changed, 1 insertion(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c
index 9989425e9875..e710e79069f6 100644
--- a/drivers/gpu/drm/drm_gem.c
+++ b/drivers/gpu/drm/drm_gem.c
@@ -1149,15 +1149,6 @@ int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
return -EACCES;
}

- if (node->readonly) {
- if (vma->vm_flags & VM_WRITE) {
- drm_gem_object_put(obj);
- return -EINVAL;
- }
-
- vma->vm_flags &= ~VM_MAYWRITE;
- }
-
ret = drm_gem_mmap_obj(obj, drm_vma_node_size(node) << PAGE_SHIFT,
vma);

diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index 76ac5e97a559..4f8c35206f7c 100644
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -53,7 +53,7 @@ struct drm_vma_offset_node {
rwlock_t vm_lock;
struct drm_mm_node vm_node;
struct rb_root vm_files;
- bool readonly:1;
+ void *driver_private;
};

struct drm_vma_offset_manager {