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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_SCHED_H__
#define __LIMA_SCHED_H__
#include <drm/gpu_scheduler.h>
#include <linux/list.h>
#include <linux/xarray.h>
struct lima_vm;
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 xarray deps;
unsigned long last_dep;
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_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);
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);
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,
atomic_t *guilty);
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_context *context,
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);
static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe)
{
pipe->error = true;
pipe->task_mmu_error(pipe);
}
int lima_sched_slab_init(void);
void lima_sched_slab_fini(void);
#endif
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