etnaviv_drv.h 4.3 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * Copyright (C) 2015-2018 Etnaviv Project
  4. */
  5. #ifndef __ETNAVIV_DRV_H__
  6. #define __ETNAVIV_DRV_H__
  7. #include <linux/list.h>
  8. #include <linux/mm_types.h>
  9. #include <linux/sizes.h>
  10. #include <linux/time64.h>
  11. #include <linux/types.h>
  12. #include <drm/drm_fb_helper.h>
  13. #include <drm/drm_gem.h>
  14. #include <drm/etnaviv_drm.h>
  15. #include <drm/gpu_scheduler.h>
  16. struct etnaviv_cmdbuf;
  17. struct etnaviv_gpu;
  18. struct etnaviv_mmu;
  19. struct etnaviv_gem_object;
  20. struct etnaviv_gem_submit;
  21. struct etnaviv_iommu_global;
  22. #define ETNAVIV_SOFTPIN_START_ADDRESS SZ_4M /* must be >= SUBALLOC_SIZE */
  23. struct etnaviv_file_private {
  24. struct etnaviv_iommu_context *mmu;
  25. struct drm_sched_entity sched_entity[ETNA_MAX_PIPES];
  26. };
  27. struct etnaviv_drm_private {
  28. int num_gpus;
  29. struct device_dma_parameters dma_parms;
  30. struct etnaviv_gpu *gpu[ETNA_MAX_PIPES];
  31. gfp_t shm_gfp_mask;
  32. struct etnaviv_cmdbuf_suballoc *cmdbuf_suballoc;
  33. struct etnaviv_iommu_global *mmu_global;
  34. /* list of GEM objects: */
  35. struct mutex gem_lock;
  36. struct list_head gem_list;
  37. };
  38. int etnaviv_ioctl_gem_submit(struct drm_device *dev, void *data,
  39. struct drm_file *file);
  40. int etnaviv_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  41. vm_fault_t etnaviv_gem_fault(struct vm_fault *vmf);
  42. int etnaviv_gem_mmap_offset(struct drm_gem_object *obj, u64 *offset);
  43. struct sg_table *etnaviv_gem_prime_get_sg_table(struct drm_gem_object *obj);
  44. void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
  45. void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
  46. int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
  47. struct vm_area_struct *vma);
  48. struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
  49. struct dma_buf_attachment *attach, struct sg_table *sg);
  50. int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
  51. void etnaviv_gem_prime_unpin(struct drm_gem_object *obj);
  52. void *etnaviv_gem_vmap(struct drm_gem_object *obj);
  53. int etnaviv_gem_cpu_prep(struct drm_gem_object *obj, u32 op,
  54. struct drm_etnaviv_timespec *timeout);
  55. int etnaviv_gem_cpu_fini(struct drm_gem_object *obj);
  56. void etnaviv_gem_free_object(struct drm_gem_object *obj);
  57. int etnaviv_gem_new_handle(struct drm_device *dev, struct drm_file *file,
  58. u32 size, u32 flags, u32 *handle);
  59. int etnaviv_gem_new_userptr(struct drm_device *dev, struct drm_file *file,
  60. uintptr_t ptr, u32 size, u32 flags, u32 *handle);
  61. u16 etnaviv_buffer_init(struct etnaviv_gpu *gpu);
  62. u16 etnaviv_buffer_config_mmuv2(struct etnaviv_gpu *gpu, u32 mtlb_addr, u32 safe_addr);
  63. u16 etnaviv_buffer_config_pta(struct etnaviv_gpu *gpu, unsigned short id);
  64. void etnaviv_buffer_end(struct etnaviv_gpu *gpu);
  65. void etnaviv_sync_point_queue(struct etnaviv_gpu *gpu, unsigned int event);
  66. void etnaviv_buffer_queue(struct etnaviv_gpu *gpu, u32 exec_state,
  67. struct etnaviv_iommu_context *mmu,
  68. unsigned int event, struct etnaviv_cmdbuf *cmdbuf);
  69. void etnaviv_validate_init(void);
  70. bool etnaviv_cmd_validate_one(struct etnaviv_gpu *gpu,
  71. u32 *stream, unsigned int size,
  72. struct drm_etnaviv_gem_submit_reloc *relocs, unsigned int reloc_size);
  73. #ifdef CONFIG_DEBUG_FS
  74. void etnaviv_gem_describe_objects(struct etnaviv_drm_private *priv,
  75. struct seq_file *m);
  76. #endif
  77. #define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
  78. #define VERB(fmt, ...) if (0) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
  79. /*
  80. * Return the storage size of a structure with a variable length array.
  81. * The array is nelem elements of elem_size, where the base structure
  82. * is defined by base. If the size overflows size_t, return zero.
  83. */
  84. static inline size_t size_vstruct(size_t nelem, size_t elem_size, size_t base)
  85. {
  86. if (elem_size && nelem > (SIZE_MAX - base) / elem_size)
  87. return 0;
  88. return base + nelem * elem_size;
  89. }
  90. /*
  91. * Etnaviv timeouts are specified wrt CLOCK_MONOTONIC, not jiffies.
  92. * We need to calculate the timeout in terms of number of jiffies
  93. * between the specified timeout and the current CLOCK_MONOTONIC time.
  94. */
  95. static inline unsigned long etnaviv_timeout_to_jiffies(
  96. const struct drm_etnaviv_timespec *timeout)
  97. {
  98. struct timespec64 ts, to = {
  99. .tv_sec = timeout->tv_sec,
  100. .tv_nsec = timeout->tv_nsec,
  101. };
  102. ktime_get_ts64(&ts);
  103. /* timeouts before "now" have already expired */
  104. if (timespec64_compare(&to, &ts) <= 0)
  105. return 0;
  106. ts = timespec64_sub(to, ts);
  107. return timespec64_to_jiffies(&ts);
  108. }
  109. #endif /* __ETNAVIV_DRV_H__ */