aboutsummaryrefslogtreecommitdiffstats
path: root/include/drm/drm_vram_mm_helper.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/drm/drm_vram_mm_helper.h')
-rw-r--r--include/drm/drm_vram_mm_helper.h104
1 files changed, 0 insertions, 104 deletions
diff --git a/include/drm/drm_vram_mm_helper.h b/include/drm/drm_vram_mm_helper.h
deleted file mode 100644
index 2aacfb1ccfae..000000000000
--- a/include/drm/drm_vram_mm_helper.h
+++ /dev/null
@@ -1,104 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0-or-later */
-
-#ifndef DRM_VRAM_MM_HELPER_H
-#define DRM_VRAM_MM_HELPER_H
-
-#include <drm/drm_file.h>
-#include <drm/drm_ioctl.h>
-#include <drm/ttm/ttm_bo_driver.h>
-
-struct drm_device;
-
-/**
- * struct drm_vram_mm_funcs - Callback functions for &struct drm_vram_mm
- * @evict_flags: Provides an implementation for struct \
- &ttm_bo_driver.evict_flags
- * @verify_access: Provides an implementation for \
- struct &ttm_bo_driver.verify_access
- *
- * These callback function integrate VRAM MM with TTM buffer objects. New
- * functions can be added if necessary.
- */
-struct drm_vram_mm_funcs {
- void (*evict_flags)(struct ttm_buffer_object *bo,
- struct ttm_placement *placement);
- int (*verify_access)(struct ttm_buffer_object *bo, struct file *filp);
-};
-
-/**
- * struct drm_vram_mm - An instance of VRAM MM
- * @vram_base: Base address of the managed video memory
- * @vram_size: Size of the managed video memory in bytes
- * @bdev: The TTM BO device.
- * @funcs: TTM BO functions
- *
- * The fields &struct drm_vram_mm.vram_base and
- * &struct drm_vram_mm.vrm_size are managed by VRAM MM, but are
- * available for public read access. Use the field
- * &struct drm_vram_mm.bdev to access the TTM BO device.
- */
-struct drm_vram_mm {
- uint64_t vram_base;
- size_t vram_size;
-
- struct ttm_bo_device bdev;
-
- const struct drm_vram_mm_funcs *funcs;
-};
-
-/**
- * drm_vram_mm_of_bdev() - \
- Returns the container of type &struct ttm_bo_device for field bdev.
- * @bdev: the TTM BO device
- *
- * Returns:
- * The containing instance of &struct drm_vram_mm
- */
-static inline struct drm_vram_mm *drm_vram_mm_of_bdev(
- struct ttm_bo_device *bdev)
-{
- return container_of(bdev, struct drm_vram_mm, bdev);
-}
-
-int drm_vram_mm_init(struct drm_vram_mm *vmm, struct drm_device *dev,
- uint64_t vram_base, size_t vram_size,
- const struct drm_vram_mm_funcs *funcs);
-void drm_vram_mm_cleanup(struct drm_vram_mm *vmm);
-
-int drm_vram_mm_mmap(struct file *filp, struct vm_area_struct *vma,
- struct drm_vram_mm *vmm);
-
-/*
- * Helpers for integration with struct drm_device
- */
-
-struct drm_vram_mm *drm_vram_helper_alloc_mm(
- struct drm_device *dev, uint64_t vram_base, size_t vram_size,
- const struct drm_vram_mm_funcs *funcs);
-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
- *
- * Drivers that use VRAM MM can use this macro to initialize
- * &struct file_operations with default functions.
- */
-#define DRM_VRAM_MM_FILE_OPERATIONS \
- .llseek = no_llseek, \
- .read = drm_read, \
- .poll = drm_poll, \
- .unlocked_ioctl = drm_ioctl, \
- .compat_ioctl = drm_compat_ioctl, \
- .mmap = drm_vram_mm_file_operations_mmap, \
- .open = drm_open, \
- .release = drm_release \
-
-#endif