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Subject[PATCH 6/8] drm/vram: switch vram helper to &drm_gem_object_funcs.mmap()
Date
Wire up the new drm_gem_ttm_mmap() helper function,
use generic drm_gem_mmap for &fops.mmap and
delete dead drm_vram_mm_file_operations_mmap().

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
include/drm/drm_gem_vram_helper.h | 9 +------
drivers/gpu/drm/drm_gem_vram_helper.c | 34 +--------------------------
2 files changed, 2 insertions(+), 41 deletions(-)

diff --git a/include/drm/drm_gem_vram_helper.h b/include/drm/drm_gem_vram_helper.h
index 9aaef4f8c327..9d5526650291 100644
--- a/include/drm/drm_gem_vram_helper.h
+++ b/include/drm/drm_gem_vram_helper.h
@@ -180,13 +180,6 @@ struct drm_vram_mm *drm_vram_helper_alloc_mm(
struct drm_device *dev, uint64_t vram_base, size_t vram_size);
void drm_vram_helper_release_mm(struct drm_device *dev);

-/*
- * Helpers for &struct file_operations
- */
-
-int drm_vram_mm_file_operations_mmap(
- struct file *filp, struct vm_area_struct *vma);
-
/**
* define DRM_VRAM_MM_FILE_OPERATIONS - default callback functions for \
&struct file_operations
@@ -200,7 +193,7 @@ int drm_vram_mm_file_operations_mmap(
.poll = drm_poll, \
.unlocked_ioctl = drm_ioctl, \
.compat_ioctl = drm_compat_ioctl, \
- .mmap = drm_vram_mm_file_operations_mmap, \
+ .mmap = drm_gem_mmap, \
.open = drm_open, \
.release = drm_release \

diff --git a/drivers/gpu/drm/drm_gem_vram_helper.c b/drivers/gpu/drm/drm_gem_vram_helper.c
index 7bee80c6b6e8..e100b97ea6e3 100644
--- a/drivers/gpu/drm/drm_gem_vram_helper.c
+++ b/drivers/gpu/drm/drm_gem_vram_helper.c
@@ -681,6 +681,7 @@ static const struct drm_gem_object_funcs drm_gem_vram_object_funcs = {
.unpin = drm_gem_vram_object_unpin,
.vmap = drm_gem_vram_object_vmap,
.vunmap = drm_gem_vram_object_vunmap,
+ .mmap = drm_gem_ttm_mmap,
.print_info = drm_gem_ttm_print_info,
};

@@ -915,12 +916,6 @@ static void drm_vram_mm_cleanup(struct drm_vram_mm *vmm)
ttm_bo_device_release(&vmm->bdev);
}

-static int drm_vram_mm_mmap(struct file *filp, struct vm_area_struct *vma,
- struct drm_vram_mm *vmm)
-{
- return ttm_bo_mmap(filp, vma, &vmm->bdev);
-}
-
/*
* Helpers for integration with struct drm_device
*/
@@ -976,30 +971,3 @@ void drm_vram_helper_release_mm(struct drm_device *dev)
dev->vram_mm = NULL;
}
EXPORT_SYMBOL(drm_vram_helper_release_mm);
-
-/*
- * Helpers for &struct file_operations
- */
-
-/**
- * drm_vram_mm_file_operations_mmap() - \
- Implements &struct file_operations.mmap()
- * @filp: the mapping's file structure
- * @vma: the mapping's memory area
- *
- * Returns:
- * 0 on success, or
- * a negative error code otherwise.
- */
-int drm_vram_mm_file_operations_mmap(
- struct file *filp, struct vm_area_struct *vma)
-{
- struct drm_file *file_priv = filp->private_data;
- struct drm_device *dev = file_priv->minor->dev;
-
- if (WARN_ONCE(!dev->vram_mm, "VRAM MM not initialized"))
- return -EINVAL;
-
- return drm_vram_mm_mmap(filp, vma, dev->vram_mm);
-}
-EXPORT_SYMBOL(drm_vram_mm_file_operations_mmap);
--
2.18.1
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