drivers/gpu/drm/lima/lima_sched.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/lima/lima_sched.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/lima/lima_sched.h
Extension
.h
Size
2750 bytes
Lines
115
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

struct lima_sched_error_task {
	struct list_head list;
	void *data;
	u32 size;
};

struct lima_sched_task {
	struct drm_sched_job base;

	struct lima_vm *vm;
	void *frame;

	struct lima_bo **bos;
	int num_bos;

	bool recoverable;
	struct lima_bo *heap;

	/* pipe fence */
	struct dma_fence *fence;
};

struct lima_sched_context {
	struct drm_sched_entity base;
};

#define LIMA_SCHED_PIPE_MAX_MMU       8
#define LIMA_SCHED_PIPE_MAX_L2_CACHE  2
#define LIMA_SCHED_PIPE_MAX_PROCESSOR 8

struct lima_ip;

struct lima_sched_pipe {
	struct drm_gpu_scheduler base;

	u64 fence_context;
	u32 fence_seqno;
	spinlock_t fence_lock;

	struct lima_device *ldev;

	struct lima_sched_task *current_task;
	struct lima_vm *current_vm;

	struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU];
	int num_mmu;

	struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE];
	int num_l2_cache;

	struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR];
	int num_processor;

	struct lima_ip *bcast_processor;
	struct lima_ip *bcast_mmu;

	u32 done;
	bool error;
	atomic_t task;

	int frame_size;
	struct kmem_cache *task_slab;

	int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
	void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
	void (*task_fini)(struct lima_sched_pipe *pipe);
	void (*task_error)(struct lima_sched_pipe *pipe);
	void (*task_mmu_error)(struct lima_sched_pipe *pipe);
	int (*task_recover)(struct lima_sched_pipe *pipe);
	void (*task_mask_irq)(struct lima_sched_pipe *pipe);

	struct work_struct recover_work;
};

int lima_sched_task_init(struct lima_sched_task *task,
			 struct lima_sched_context *context,
			 struct lima_bo **bos, int num_bos,
			 struct lima_vm *vm,
			 u64 drm_client_id);
void lima_sched_task_fini(struct lima_sched_task *task);

int lima_sched_context_init(struct lima_sched_pipe *pipe,
			    struct lima_sched_context *context);
void lima_sched_context_fini(struct lima_sched_pipe *pipe,
			     struct lima_sched_context *context);
struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task);

int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name);
void lima_sched_pipe_fini(struct lima_sched_pipe *pipe);
void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe);

Annotation

Implementation Notes