etnaviv_gem.h 3.3 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * Copyright (C) 2015-2018 Etnaviv Project
  4. */
  5. #ifndef __ETNAVIV_GEM_H__
  6. #define __ETNAVIV_GEM_H__
  7. #include <linux/dma-resv.h>
  8. #include "etnaviv_cmdbuf.h"
  9. #include "etnaviv_drv.h"
  10. struct dma_fence;
  11. struct etnaviv_gem_ops;
  12. struct etnaviv_gem_object;
  13. struct etnaviv_gem_userptr {
  14. uintptr_t ptr;
  15. struct mm_struct *mm;
  16. bool ro;
  17. };
  18. struct etnaviv_vram_mapping {
  19. struct list_head obj_node;
  20. struct list_head scan_node;
  21. struct list_head mmu_node;
  22. struct etnaviv_gem_object *object;
  23. struct etnaviv_iommu_context *context;
  24. struct drm_mm_node vram_node;
  25. unsigned int use;
  26. u32 iova;
  27. };
  28. struct etnaviv_gem_object {
  29. struct drm_gem_object base;
  30. const struct etnaviv_gem_ops *ops;
  31. struct mutex lock;
  32. u32 flags;
  33. struct list_head gem_node;
  34. struct etnaviv_gpu *gpu; /* non-null if active */
  35. atomic_t gpu_active;
  36. u32 access;
  37. struct page **pages;
  38. struct sg_table *sgt;
  39. void *vaddr;
  40. struct list_head vram_list;
  41. /* cache maintenance */
  42. u32 last_cpu_prep_op;
  43. struct etnaviv_gem_userptr userptr;
  44. };
  45. static inline
  46. struct etnaviv_gem_object *to_etnaviv_bo(struct drm_gem_object *obj)
  47. {
  48. return container_of(obj, struct etnaviv_gem_object, base);
  49. }
  50. struct etnaviv_gem_ops {
  51. int (*get_pages)(struct etnaviv_gem_object *);
  52. void (*release)(struct etnaviv_gem_object *);
  53. void *(*vmap)(struct etnaviv_gem_object *);
  54. int (*mmap)(struct etnaviv_gem_object *, struct vm_area_struct *);
  55. };
  56. static inline bool is_active(struct etnaviv_gem_object *etnaviv_obj)
  57. {
  58. return atomic_read(&etnaviv_obj->gpu_active) != 0;
  59. }
  60. #define MAX_CMDS 4
  61. struct etnaviv_gem_submit_bo {
  62. u32 flags;
  63. u64 va;
  64. struct etnaviv_gem_object *obj;
  65. struct etnaviv_vram_mapping *mapping;
  66. struct dma_fence *excl;
  67. unsigned int nr_shared;
  68. struct dma_fence **shared;
  69. };
  70. /* Created per submit-ioctl, to track bo's and cmdstream bufs, etc,
  71. * associated with the cmdstream submission for synchronization (and
  72. * make it easier to unwind when things go wrong, etc).
  73. */
  74. struct etnaviv_gem_submit {
  75. struct drm_sched_job sched_job;
  76. struct kref refcount;
  77. struct etnaviv_file_private *ctx;
  78. struct etnaviv_gpu *gpu;
  79. struct etnaviv_iommu_context *mmu_context, *prev_mmu_context;
  80. struct dma_fence *out_fence, *in_fence;
  81. int out_fence_id;
  82. struct list_head node; /* GPU active submit list */
  83. struct etnaviv_cmdbuf cmdbuf;
  84. bool runtime_resumed;
  85. u32 exec_state;
  86. u32 flags;
  87. unsigned int nr_pmrs;
  88. struct etnaviv_perfmon_request *pmrs;
  89. unsigned int nr_bos;
  90. struct etnaviv_gem_submit_bo bos[];
  91. /* No new members here, the previous one is variable-length! */
  92. };
  93. void etnaviv_submit_put(struct etnaviv_gem_submit * submit);
  94. int etnaviv_gem_wait_bo(struct etnaviv_gpu *gpu, struct drm_gem_object *obj,
  95. struct drm_etnaviv_timespec *timeout);
  96. int etnaviv_gem_new_private(struct drm_device *dev, size_t size, u32 flags,
  97. const struct etnaviv_gem_ops *ops, struct etnaviv_gem_object **res);
  98. void etnaviv_gem_obj_add(struct drm_device *dev, struct drm_gem_object *obj);
  99. struct page **etnaviv_gem_get_pages(struct etnaviv_gem_object *obj);
  100. void etnaviv_gem_put_pages(struct etnaviv_gem_object *obj);
  101. struct etnaviv_vram_mapping *etnaviv_gem_mapping_get(
  102. struct drm_gem_object *obj, struct etnaviv_iommu_context *mmu_context,
  103. u64 va);
  104. void etnaviv_gem_mapping_unreference(struct etnaviv_vram_mapping *mapping);
  105. #endif /* __ETNAVIV_GEM_H__ */