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/* SPDX-License-Identifier: GPL-2.0 OR MIT */
/* Copyright 2018-2019 Qiang Yu <yuq825@gmail.com> */
#ifndef __LIMA_DEVICE_H__
#define __LIMA_DEVICE_H__
#include <drm/drm_device.h>
#include <linux/delay.h>
#include <linux/list.h>
#include <linux/mutex.h>
#include "lima_sched.h"
#include "lima_dump.h"
#include "lima_devfreq.h"
enum lima_gpu_id {
lima_gpu_mali400 = 0,
lima_gpu_mali450,
lima_gpu_num,
};
enum lima_ip_id {
lima_ip_pmu,
lima_ip_gpmmu,
lima_ip_ppmmu0,
lima_ip_ppmmu1,
lima_ip_ppmmu2,
lima_ip_ppmmu3,
lima_ip_ppmmu4,
lima_ip_ppmmu5,
lima_ip_ppmmu6,
lima_ip_ppmmu7,
lima_ip_gp,
lima_ip_pp0,
lima_ip_pp1,
lima_ip_pp2,
lima_ip_pp3,
lima_ip_pp4,
lima_ip_pp5,
lima_ip_pp6,
lima_ip_pp7,
lima_ip_l2_cache0,
lima_ip_l2_cache1,
lima_ip_l2_cache2,
lima_ip_dlbu,
lima_ip_bcast,
lima_ip_pp_bcast,
lima_ip_ppmmu_bcast,
lima_ip_num,
};
struct lima_device;
struct lima_ip {
struct lima_device *dev;
enum lima_ip_id id;
bool present;
void __iomem *iomem;
int irq;
union {
/* gp/pp */
bool async_reset;
/* l2 cache */
spinlock_t lock;
/* pmu */
u32 mask;
} data;
};
enum lima_pipe_id {
lima_pipe_gp,
lima_pipe_pp,
lima_pipe_num,
};
struct lima_device {
struct device *dev;
struct drm_device *ddev;
enum lima_gpu_id id;
u32 gp_version;
u32 pp_version;
int num_pp;
void __iomem *iomem;
struct clk *clk_bus;
struct clk *clk_gpu;
struct reset_control *reset;
struct regulator *regulator;
struct lima_ip ip[lima_ip_num];
struct lima_sched_pipe pipe[lima_pipe_num];
struct lima_vm *empty_vm;
uint64_t va_start;
uint64_t va_end;
u32 *dlbu_cpu;
dma_addr_t dlbu_dma;
struct lima_devfreq devfreq;
/* debug info */
struct lima_dump_head dump;
struct list_head error_task_list;
struct mutex error_task_list_lock;
};
static inline struct lima_device *
to_lima_dev(struct drm_device *dev)
{
return dev->dev_private;
}
int lima_device_init(struct lima_device *ldev);
void lima_device_fini(struct lima_device *ldev);
const char *lima_ip_name(struct lima_ip *ip);
typedef int (*lima_poll_func_t)(struct lima_ip *);
static inline int lima_poll_timeout(struct lima_ip *ip, lima_poll_func_t func,
int sleep_us, int timeout_us)
{
ktime_t timeout = ktime_add_us(ktime_get(), timeout_us);
might_sleep_if(sleep_us);
while (1) {
if (func(ip))
return 0;
if (timeout_us && ktime_compare(ktime_get(), timeout) > 0)
return -ETIMEDOUT;
if (sleep_us)
usleep_range((sleep_us >> 2) + 1, sleep_us);
}
return 0;
}
#endif
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