drivers/gpu/drm/i915/i915_mm.h

   1 /* SPDX-License-Identifier: MIT */
   2 /*
   3  * Copyright © 2021 Intel Corporation
   4  */
   5
   6 #ifndef __I915_MM_H__
   7 #define __I915_MM_H__
   8
   9 #include <linux/bug.h>
  10 #include <linux/types.h>
  11
  12 struct vm_area_struct;
  13 struct io_mapping;
  14 struct scatterlist;
  15
  16 #if IS_ENABLED(CONFIG_X86)
  17 int remap_io_mapping(struct vm_area_struct *vma,
  18                      unsigned long addr, unsigned long pfn, unsigned long size,
  19                      struct io_mapping *iomap);
  20 #else
  21 static inline
  22 int remap_io_mapping(struct vm_area_struct *vma,
  23                      unsigned long addr, unsigned long pfn, unsigned long size,
  24                      struct io_mapping *iomap)
  25 {
  26         WARN_ONCE(1, "Architecture has no drm_cache.c support\n");
  27         return 0;
  28 }
  29 #endif
  30
  31 int remap_io_sg(struct vm_area_struct *vma,
  32                 unsigned long addr, unsigned long size,
  33                 struct scatterlist *sgl, resource_size_t iobase);
  34
  35 #endif /* __I915_MM_H__ */