rocket_core.h

 1/* SPDX-License-Identifier: GPL-2.0-only */
 2/* Copyright 2024-2025 Tomeu Vizoso <tomeu@tomeuvizoso.net> */
 3
 4#ifndef __ROCKET_CORE_H__
 5#define __ROCKET_CORE_H__
 6
 7#include <drm/gpu_scheduler.h>
 8#include <linux/clk.h>
 9#include <linux/io.h>
10#include <linux/mutex_types.h>
11#include <linux/reset.h>
12
13#include "rocket_registers.h"
14
15#define rocket_pc_readl(core, reg) \
16	readl((core)->pc_iomem + (REG_PC_##reg))
17#define rocket_pc_writel(core, reg, value) \
18	writel(value, (core)->pc_iomem + (REG_PC_##reg))
19
20#define rocket_cna_readl(core, reg) \
21	readl((core)->cna_iomem + (REG_CNA_##reg) - REG_CNA_S_STATUS)
22#define rocket_cna_writel(core, reg, value) \
23	writel(value, (core)->cna_iomem + (REG_CNA_##reg) - REG_CNA_S_STATUS)
24
25#define rocket_core_readl(core, reg) \
26	readl((core)->core_iomem + (REG_CORE_##reg) - REG_CORE_S_STATUS)
27#define rocket_core_writel(core, reg, value) \
28	writel(value, (core)->core_iomem + (REG_CORE_##reg) - REG_CORE_S_STATUS)
29
30struct rocket_core {
31	struct device *dev;
32	struct rocket_device *rdev;
33	unsigned int index;
34
35	int irq;
36	void __iomem *pc_iomem;
37	void __iomem *cna_iomem;
38	void __iomem *core_iomem;
39	struct clk_bulk_data clks[4];
40	struct reset_control_bulk_data resets[2];
41
42	struct iommu_group *iommu_group;
43
44	struct mutex job_lock;
45	struct rocket_job *in_flight_job;
46
47	spinlock_t fence_lock;
48
49	struct {
50		struct workqueue_struct *wq;
51		struct work_struct work;
52		atomic_t pending;
53	} reset;
54
55	struct drm_gpu_scheduler sched;
56	u64 fence_context;
57	u64 emit_seqno;
58};
59
60int rocket_core_init(struct rocket_core *core);
61void rocket_core_fini(struct rocket_core *core);
62void rocket_core_reset(struct rocket_core *core);
63
64#endif