cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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lima_sched.h (2698B)

      1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
      2/* Copyright 2017-2019 Qiang Yu <yuq825@gmail.com> */
      3
      4#ifndef __LIMA_SCHED_H__
      5#define __LIMA_SCHED_H__
      6
      7#include <drm/gpu_scheduler.h>
      8#include <linux/list.h>
      9#include <linux/xarray.h>
     10
     11struct lima_device;
     12struct lima_vm;
     13
     14struct lima_sched_error_task {
     15	struct list_head list;
     16	void *data;
     17	u32 size;
     18};
     19
     20struct lima_sched_task {
     21	struct drm_sched_job base;
     22
     23	struct lima_vm *vm;
     24	void *frame;
     25
     26	struct lima_bo **bos;
     27	int num_bos;
     28
     29	bool recoverable;
     30	struct lima_bo *heap;
     31
     32	/* pipe fence */
     33	struct dma_fence *fence;
     34};
     35
     36struct lima_sched_context {
     37	struct drm_sched_entity base;
     38};
     39
     40#define LIMA_SCHED_PIPE_MAX_MMU       8
     41#define LIMA_SCHED_PIPE_MAX_L2_CACHE  2
     42#define LIMA_SCHED_PIPE_MAX_PROCESSOR 8
     43
     44struct lima_ip;
     45
     46struct lima_sched_pipe {
     47	struct drm_gpu_scheduler base;
     48
     49	u64 fence_context;
     50	u32 fence_seqno;
     51	spinlock_t fence_lock;
     52
     53	struct lima_device *ldev;
     54
     55	struct lima_sched_task *current_task;
     56	struct lima_vm *current_vm;
     57
     58	struct lima_ip *mmu[LIMA_SCHED_PIPE_MAX_MMU];
     59	int num_mmu;
     60
     61	struct lima_ip *l2_cache[LIMA_SCHED_PIPE_MAX_L2_CACHE];
     62	int num_l2_cache;
     63
     64	struct lima_ip *processor[LIMA_SCHED_PIPE_MAX_PROCESSOR];
     65	int num_processor;
     66
     67	struct lima_ip *bcast_processor;
     68	struct lima_ip *bcast_mmu;
     69
     70	u32 done;
     71	bool error;
     72	atomic_t task;
     73
     74	int frame_size;
     75	struct kmem_cache *task_slab;
     76
     77	int (*task_validate)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
     78	void (*task_run)(struct lima_sched_pipe *pipe, struct lima_sched_task *task);
     79	void (*task_fini)(struct lima_sched_pipe *pipe);
     80	void (*task_error)(struct lima_sched_pipe *pipe);
     81	void (*task_mmu_error)(struct lima_sched_pipe *pipe);
     82	int (*task_recover)(struct lima_sched_pipe *pipe);
     83
     84	struct work_struct recover_work;
     85};
     86
     87int lima_sched_task_init(struct lima_sched_task *task,
     88			 struct lima_sched_context *context,
     89			 struct lima_bo **bos, int num_bos,
     90			 struct lima_vm *vm);
     91void lima_sched_task_fini(struct lima_sched_task *task);
     92
     93int lima_sched_context_init(struct lima_sched_pipe *pipe,
     94			    struct lima_sched_context *context,
     95			    atomic_t *guilty);
     96void lima_sched_context_fini(struct lima_sched_pipe *pipe,
     97			     struct lima_sched_context *context);
     98struct dma_fence *lima_sched_context_queue_task(struct lima_sched_task *task);
     99
    100int lima_sched_pipe_init(struct lima_sched_pipe *pipe, const char *name);
    101void lima_sched_pipe_fini(struct lima_sched_pipe *pipe);
    102void lima_sched_pipe_task_done(struct lima_sched_pipe *pipe);
    103
    104static inline void lima_sched_pipe_mmu_error(struct lima_sched_pipe *pipe)
    105{
    106	pipe->error = true;
    107	pipe->task_mmu_error(pipe);
    108}
    109
    110int lima_sched_slab_init(void);
    111void lima_sched_slab_fini(void);
    112
    113#endif