Blame - drivers/gpu/drm/panfrost/panfrost_device.h - SHIFTPHONES/mainline/linux

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Rob Herring	f3ba912	2018-09-10 14:27:58 -0500	[diff] [blame]	1	/* SPDX-License-Identifier: GPL-2.0 */
				2	/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */
				3	/* Copyright 2019 Linaro, Ltd, Rob Herring <robh@kernel.org> */
				4
				5	#ifndef __PANFROST_DEVICE_H__
				6	#define __PANFROST_DEVICE_H__
				7
				8	#include <linux/spinlock.h>
				9	#include <drm/drm_device.h>
				10	#include <drm/drm_mm.h>
				11	#include <drm/gpu_scheduler.h>
				12
				13	struct panfrost_device;
				14	struct panfrost_mmu;
				15	struct panfrost_job_slot;
				16	struct panfrost_job;
				17
				18	#define NUM_JOB_SLOTS 3
				19
				20	struct panfrost_features {
				21	u16 id;
				22	u16 revision;
				23
				24	u64 shader_present;
				25	u64 tiler_present;
				26	u64 l2_present;
				27	u64 stack_present;
				28	u32 as_present;
				29	u32 js_present;
				30
				31	u32 l2_features;
				32	u32 core_features;
				33	u32 tiler_features;
				34	u32 mem_features;
				35	u32 mmu_features;
				36	u32 thread_features;
				37	u32 max_threads;
				38	u32 thread_max_workgroup_sz;
				39	u32 thread_max_barrier_sz;
				40	u32 coherency_features;
				41	u32 texture_features[4];
				42	u32 js_features[16];
				43
				44	u32 nr_core_groups;
				45
				46	unsigned long hw_features[64 / BITS_PER_LONG];
				47	unsigned long hw_issues[64 / BITS_PER_LONG];
				48	};
				49
				50	struct panfrost_devfreq_slot {
				51	ktime_t busy_time;
				52	ktime_t idle_time;
				53	ktime_t time_last_update;
				54	bool busy;
				55	};
				56
				57	struct panfrost_device {
				58	struct device *dev;
				59	struct drm_device *ddev;
				60	struct platform_device *pdev;
				61
				62	spinlock_t hwaccess_lock;
				63
				64	struct drm_mm mm;
				65	spinlock_t mm_lock;
				66
				67	void __iomem *iomem;
				68	struct clk *clock;
				69	struct regulator *regulator;
				70	struct reset_control *rstc;
				71
				72	struct panfrost_features features;
				73
				74	struct panfrost_mmu *mmu;
				75	struct panfrost_job_slot *js;
				76
				77	struct panfrost_job *jobs[NUM_JOB_SLOTS];
				78	struct list_head scheduled_jobs;
				79
				80	struct mutex sched_lock;
				81
				82	struct {
				83	struct devfreq *devfreq;
				84	struct thermal_cooling_device *cooling;
				85	unsigned long cur_freq;
				86	unsigned long cur_volt;
				87	struct panfrost_devfreq_slot slot[NUM_JOB_SLOTS];
				88	} devfreq;
				89	};
				90
				91	struct panfrost_file_priv {
				92	struct panfrost_device *pfdev;
				93
				94	struct drm_sched_entity sched_entity[NUM_JOB_SLOTS];
				95	};
				96
				97	static inline struct panfrost_device to_panfrost_device(struct drm_device ddev)
				98	{
				99	return ddev->dev_private;
				100	}
				101
				102	static inline int panfrost_model_cmp(struct panfrost_device *pfdev, s32 id)
				103	{
				104	s32 match_id = pfdev->features.id;
				105
				106	if (match_id & 0xf000)
				107	match_id &= 0xf00f;
				108	return match_id - id;
				109	}
				110
				111	static inline bool panfrost_model_eq(struct panfrost_device *pfdev, s32 id)
				112	{
				113	return !panfrost_model_cmp(pfdev, id);
				114	}
				115
				116	int panfrost_device_init(struct panfrost_device *pfdev);
				117	void panfrost_device_fini(struct panfrost_device *pfdev);
				118
				119	int panfrost_device_resume(struct device *dev);
				120	int panfrost_device_suspend(struct device *dev);
				121
				122	const char panfrost_exception_name(struct panfrost_device pfdev, u32 exception_code);
				123
				124	#endif