drivers/gpu/drm/panthor/panthor_heap.h

   1 /* SPDX-License-Identifier: GPL-2.0 or MIT */
   2 /* Copyright 2023 Collabora ltd. */
   3
   4 #ifndef __PANTHOR_HEAP_H__
   5 #define __PANTHOR_HEAP_H__
   6
   7 #include <linux/types.h>
   8
   9 struct panthor_device;
  10 struct panthor_heap_pool;
  11 struct panthor_vm;
  12
  13 int panthor_heap_create(struct panthor_heap_pool *pool,
  14                         u32 initial_chunk_count,
  15                         u32 chunk_size,
  16                         u32 max_chunks,
  17                         u32 target_in_flight,
  18                         u64 *heap_ctx_gpu_va,
  19                         u64 *first_chunk_gpu_va);
  20 int panthor_heap_destroy(struct panthor_heap_pool *pool, u32 handle);
  21
  22 struct panthor_heap_pool *
  23 panthor_heap_pool_create(struct panthor_device *ptdev, struct panthor_vm *vm);
  24 void panthor_heap_pool_destroy(struct panthor_heap_pool *pool);
  25
  26 struct panthor_heap_pool *
  27 panthor_heap_pool_get(struct panthor_heap_pool *pool);
  28 void panthor_heap_pool_put(struct panthor_heap_pool *pool);
  29
  30 int panthor_heap_grow(struct panthor_heap_pool *pool,
  31                       u64 heap_gpu_va,
  32                       u32 renderpasses_in_flight,
  33                       u32 pending_frag_count,
  34                       u64 *new_chunk_gpu_va);
  35 int panthor_heap_return_chunk(struct panthor_heap_pool *pool,
  36                               u64 heap_gpu_va,
  37                               u64 chunk_gpu_va);
  38
  39 #endif