Blame - marvell/linux/drivers/gpu/drm/lima/lima_device.h - T108

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b.liu	e958203	2025-04-17 19:18:16 +0800	[diff] [blame^]	1	/* SPDX-License-Identifier: GPL-2.0 OR MIT */
				2	/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
				3
				4	#ifndef __LIMA_DEVICE_H__
				5	#define __LIMA_DEVICE_H__
				6
				7	#include <drm/drm_device.h>
				8	#include <linux/delay.h>
				9
				10	#include "lima_sched.h"
				11
				12	enum lima_gpu_id {
				13	lima_gpu_mali400 = 0,
				14	lima_gpu_mali450,
				15	lima_gpu_num,
				16	};
				17
				18	enum lima_ip_id {
				19	lima_ip_pmu,
				20	lima_ip_gpmmu,
				21	lima_ip_ppmmu0,
				22	lima_ip_ppmmu1,
				23	lima_ip_ppmmu2,
				24	lima_ip_ppmmu3,
				25	lima_ip_ppmmu4,
				26	lima_ip_ppmmu5,
				27	lima_ip_ppmmu6,
				28	lima_ip_ppmmu7,
				29	lima_ip_gp,
				30	lima_ip_pp0,
				31	lima_ip_pp1,
				32	lima_ip_pp2,
				33	lima_ip_pp3,
				34	lima_ip_pp4,
				35	lima_ip_pp5,
				36	lima_ip_pp6,
				37	lima_ip_pp7,
				38	lima_ip_l2_cache0,
				39	lima_ip_l2_cache1,
				40	lima_ip_l2_cache2,
				41	lima_ip_dlbu,
				42	lima_ip_bcast,
				43	lima_ip_pp_bcast,
				44	lima_ip_ppmmu_bcast,
				45	lima_ip_num,
				46	};
				47
				48	struct lima_device;
				49
				50	struct lima_ip {
				51	struct lima_device *dev;
				52	enum lima_ip_id id;
				53	bool present;
				54
				55	void __iomem *iomem;
				56	int irq;
				57
				58	union {
				59	/* gp/pp */
				60	bool async_reset;
				61	/* l2 cache */
				62	spinlock_t lock;
				63	} data;
				64	};
				65
				66	enum lima_pipe_id {
				67	lima_pipe_gp,
				68	lima_pipe_pp,
				69	lima_pipe_num,
				70	};
				71
				72	struct lima_device {
				73	struct device *dev;
				74	struct drm_device *ddev;
				75	struct platform_device *pdev;
				76
				77	enum lima_gpu_id id;
				78	u32 gp_version;
				79	u32 pp_version;
				80	int num_pp;
				81
				82	void __iomem *iomem;
				83	struct clk *clk_bus;
				84	struct clk *clk_gpu;
				85	struct reset_control *reset;
				86	struct regulator *regulator;
				87
				88	struct lima_ip ip[lima_ip_num];
				89	struct lima_sched_pipe pipe[lima_pipe_num];
				90
				91	struct lima_vm *empty_vm;
				92	uint64_t va_start;
				93	uint64_t va_end;
				94
				95	u32 *dlbu_cpu;
				96	dma_addr_t dlbu_dma;
				97	};
				98
				99	static inline struct lima_device *
				100	to_lima_dev(struct drm_device *dev)
				101	{
				102	return dev->dev_private;
				103	}
				104
				105	int lima_device_init(struct lima_device *ldev);
				106	void lima_device_fini(struct lima_device *ldev);
				107
				108	const char lima_ip_name(struct lima_ip ip);
				109
				110	typedef int (lima_poll_func_t)(struct lima_ip );
				111
				112	static inline int lima_poll_timeout(struct lima_ip *ip, lima_poll_func_t func,
				113	int sleep_us, int timeout_us)
				114	{
				115	ktime_t timeout = ktime_add_us(ktime_get(), timeout_us);
				116
				117	might_sleep_if(sleep_us);
				118	while (1) {
				119	if (func(ip))
				120	return 0;
				121
				122	if (timeout_us && ktime_compare(ktime_get(), timeout) > 0)
				123	return -ETIMEDOUT;
				124
				125	if (sleep_us)
				126	usleep_range((sleep_us >> 2) + 1, sleep_us);
				127	}
				128	return 0;
				129	}
				130
				131	#endif