drivers/gpu/drm/panthor/panthor_heap.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/panthor/panthor_heap.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/panthor/panthor_heap.h
Extension
.h
Size
1186 bytes
Lines
42
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __PANTHOR_HEAP_H__
#define __PANTHOR_HEAP_H__

#include <linux/types.h>

struct panthor_device;
struct panthor_heap_pool;
struct panthor_vm;

int panthor_heap_create(struct panthor_heap_pool *pool,
			u32 initial_chunk_count,
			u32 chunk_size,
			u32 max_chunks,
			u32 target_in_flight,
			u64 *heap_ctx_gpu_va,
			u64 *first_chunk_gpu_va);
int panthor_heap_destroy(struct panthor_heap_pool *pool, u32 handle);

struct panthor_heap_pool *
panthor_heap_pool_create(struct panthor_device *ptdev, struct panthor_vm *vm);
void panthor_heap_pool_destroy(struct panthor_heap_pool *pool);

struct panthor_heap_pool *
panthor_heap_pool_get(struct panthor_heap_pool *pool);
void panthor_heap_pool_put(struct panthor_heap_pool *pool);

size_t panthor_heap_pool_size(struct panthor_heap_pool *pool);

int panthor_heap_grow(struct panthor_heap_pool *pool,
		      u64 heap_gpu_va,
		      u32 renderpasses_in_flight,
		      u32 pending_frag_count,
		      u64 *new_chunk_gpu_va);
int panthor_heap_return_chunk(struct panthor_heap_pool *pool,
			      u64 heap_gpu_va,
			      u64 chunk_gpu_va);

#endif

Annotation

Implementation Notes