// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) Rockchip Electronics Co., Ltd.
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*
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* Author:
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* Huang Lee <Putin.li@rock-chips.com>
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*/
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#define pr_fmt(fmt) "rve_debugger: " fmt
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#include <linux/slab.h>
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#include <linux/delay.h>
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#include <linux/syscalls.h>
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#include <linux/debugfs.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include "rve.h"
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#include "rve_debugger.h"
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#include "rve_drv.h"
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#define RVE_DEBUGGER_ROOT_NAME "rve"
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#define STR_ENABLE(en) (en ? "EN" : "DIS")
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int RVE_DEBUG_REG;
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int RVE_DEBUG_MSG;
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int RVE_DEBUG_TIME;
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int RVE_DEBUG_CHECK_MODE;
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int RVE_DEBUG_NONUSE;
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int RVE_DEBUG_INT_FLAG;
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int RVE_DEBUG_MONITOR;
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static int rve_debug_show(struct seq_file *m, void *data)
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{
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seq_printf(m, "REG [%s]\n"
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"MSG [%s]\n"
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"TIME [%s]\n"
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"INT [%s]\n"
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"CHECK [%s]\n"
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"STOP [%s]\n"
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"MONITOR [%s]",
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STR_ENABLE(RVE_DEBUG_REG),
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STR_ENABLE(RVE_DEBUG_MSG),
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STR_ENABLE(RVE_DEBUG_TIME),
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STR_ENABLE(RVE_DEBUG_INT_FLAG),
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STR_ENABLE(RVE_DEBUG_CHECK_MODE),
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STR_ENABLE(RVE_DEBUG_NONUSE),
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STR_ENABLE(RVE_DEBUG_MONITOR));
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seq_puts(m, "\nhelp:\n");
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seq_puts(m,
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" 'echo reg > debug' to enable/disable register log printing.\n");
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seq_puts(m,
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" 'echo msg > debug' to enable/disable message log printing.\n");
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seq_puts(m,
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" 'echo time > debug' to enable/disable time log printing.\n");
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seq_puts(m,
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" 'echo int > debug' to enable/disable interruppt log printing.\n");
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seq_puts(m, " 'echo check > debug' to enable/disable check mode.\n");
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seq_puts(m,
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" 'echo stop > debug' to enable/disable stop using hardware\n");
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seq_puts(m, " 'echo mon > debug' to enable/disable monitor");
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return 0;
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}
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static ssize_t rve_debug_write(struct file *file, const char __user *ubuf,
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size_t len, loff_t *offp)
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{
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char buf[14];
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if (len > sizeof(buf) - 1)
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return -EINVAL;
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if (copy_from_user(buf, ubuf, len))
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return -EFAULT;
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buf[len - 1] = '\0';
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if (strncmp(buf, "reg", 4) == 0) {
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if (RVE_DEBUG_REG) {
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RVE_DEBUG_REG = 0;
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pr_err("close rve reg!\n");
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} else {
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RVE_DEBUG_REG = 1;
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pr_err("open rve reg!\n");
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}
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} else if (strncmp(buf, "msg", 3) == 0) {
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if (RVE_DEBUG_MSG) {
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RVE_DEBUG_MSG = 0;
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pr_err("close rve test MSG!\n");
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} else {
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RVE_DEBUG_MSG = 1;
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pr_err("open rve test MSG!\n");
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}
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} else if (strncmp(buf, "time", 4) == 0) {
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if (RVE_DEBUG_TIME) {
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RVE_DEBUG_TIME = 0;
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pr_err("close rve test time!\n");
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} else {
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RVE_DEBUG_TIME = 1;
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pr_err("open rve test time!\n");
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}
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} else if (strncmp(buf, "check", 5) == 0) {
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if (RVE_DEBUG_CHECK_MODE) {
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RVE_DEBUG_CHECK_MODE = 0;
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pr_err("close rve check flag!\n");
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} else {
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RVE_DEBUG_CHECK_MODE = 1;
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pr_err("open rve check flag!\n");
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}
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} else if (strncmp(buf, "stop", 4) == 0) {
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if (RVE_DEBUG_NONUSE) {
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RVE_DEBUG_NONUSE = 0;
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pr_err("using rve hardware!\n");
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} else {
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RVE_DEBUG_NONUSE = 1;
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pr_err("stop using rve hardware!\n");
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}
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} else if (strncmp(buf, "int", 3) == 0) {
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if (RVE_DEBUG_INT_FLAG) {
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RVE_DEBUG_INT_FLAG = 0;
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pr_err("close inturrupt MSG!\n");
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} else {
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RVE_DEBUG_INT_FLAG = 1;
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pr_err("open inturrupt MSG!\n");
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}
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} else if (strncmp(buf, "mon", 3) == 0) {
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if (RVE_DEBUG_MONITOR) {
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RVE_DEBUG_MONITOR = 0;
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pr_err("close monitor!\n");
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} else {
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RVE_DEBUG_MONITOR = 1;
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pr_err("open monitor!\n");
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}
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} else if (strncmp(buf, "slt", 3) == 0) {
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pr_err("Null");
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}
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return len;
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}
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static int rve_version_show(struct seq_file *m, void *data)
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{
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seq_printf(m, "%s: v%s\n", DRIVER_DESC, DRIVER_VERSION);
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return 0;
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}
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static int rve_load_show(struct seq_file *m, void *data)
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{
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struct rve_scheduler_t *scheduler = NULL;
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struct rve_sche_pid_info_t *pid_info = NULL;
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unsigned long flags;
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int i;
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int load;
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u32 busy_time_total;
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seq_printf(m, "num of scheduler = %d\n", rve_drvdata->num_of_scheduler);
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seq_printf(m, "================= load ==================\n");
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scheduler = rve_drvdata->scheduler[0];
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seq_printf(m, "scheduler[0]: %s\n", dev_driver_string(scheduler->dev));
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spin_lock_irqsave(&scheduler->irq_lock, flags);
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busy_time_total = scheduler->timer.busy_time_record;
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pid_info = scheduler->session.pid_info;
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spin_unlock_irqrestore(&scheduler->irq_lock, flags);
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load = (busy_time_total * 100000 / RVE_LOAD_INTERVAL);
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seq_printf(m, "\t load = %d\n", load);
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seq_printf(m, "---------------- PID INFO ---------------\n");
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for (i = 0; i < RVE_MAX_PID_INFO; i++) {
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seq_printf(m, "\t [pid: %d] hw_time_total = %llu us\n",
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pid_info[i].pid, ktime_to_us(pid_info[i].hw_time_total));
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seq_printf(m, "\t\t last_job_rd_bandwidth: %u bytes/s\n",
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pid_info[i].last_job_rd_bandwidth);
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seq_printf(m, "\t\t last_job_wr_bandwidth: %u bytes/s\n",
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pid_info[i].last_job_wr_bandwidth);
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seq_printf(m, "\t\t last_job_cycle_cnt/s: %u\n",
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pid_info[i].last_job_cycle_cnt);
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}
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return 0;
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}
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static int rve_scheduler_show(struct seq_file *m, void *data)
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{
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struct rve_scheduler_t *scheduler = NULL;
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int i;
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unsigned long flags;
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int pd_refcount;
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uint64_t total_int_cnt;
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uint32_t rd_bandwidth, wr_bandwidth, cycle_cnt;
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seq_printf(m, "num of scheduler = %d\n", rve_drvdata->num_of_scheduler);
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seq_printf(m, "===================================\n");
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for (i = 0; i < rve_drvdata->num_of_scheduler; i++) {
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scheduler = rve_drvdata->scheduler[i];
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spin_lock_irqsave(&scheduler->irq_lock, flags);
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pd_refcount = scheduler->session.pd_refcount;
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total_int_cnt = scheduler->session.total_int_cnt;
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rd_bandwidth = scheduler->session.rd_bandwidth;
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wr_bandwidth = scheduler->session.wr_bandwidth;
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cycle_cnt = scheduler->session.cycle_cnt;
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spin_unlock_irqrestore(&scheduler->irq_lock, flags);
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seq_printf(m, "scheduler[%d]: %s\n", i, dev_driver_string(scheduler->dev));
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seq_printf(m, "-----------------------------------\n");
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seq_printf(m, "pd_ref = %d\n", pd_refcount);
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seq_printf(m, "total_int_cnt = %llu\n", total_int_cnt);
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seq_printf(m, "rd_bandwidth: %u bytes/s\t wr_bandwidth: %u bytes/s\n",
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rd_bandwidth, wr_bandwidth);
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seq_printf(m, "cycle_cnt/s: %u\n", cycle_cnt);
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}
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return 0;
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}
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static int rve_ctx_manager_show(struct seq_file *m, void *data)
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{
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int id;
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struct rve_pending_ctx_manager *ctx_manager;
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struct rve_internal_ctx_t *ctx;
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unsigned long flags;
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int cmd_num = 0;
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int finished_job_count = 0;
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bool status = false;
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pid_t pid;
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u32 last_job_hw_use_time;
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u32 last_job_use_time;
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u32 hw_time_total;
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u32 max_cost_time_per_sec;
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ctx_manager = rve_drvdata->pend_ctx_manager;
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seq_puts(m, "rve internal ctx dump:\n");
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seq_printf(m, "ctx count = %d\n", ctx_manager->ctx_count);
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spin_lock_irqsave(&ctx_manager->lock, flags);
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idr_for_each_entry(&ctx_manager->ctx_id_idr, ctx, id) {
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seq_printf(m, "================= ctx id: %d =================\n", ctx->id);
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spin_unlock_irqrestore(&ctx_manager->lock, flags);
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spin_lock_irqsave(&ctx->lock, flags);
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cmd_num = ctx->cmd_num;
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finished_job_count = ctx->finished_job_count;
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status = ctx->is_running;
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pid = ctx->debug_info.pid;
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last_job_hw_use_time = ctx->debug_info.last_job_hw_use_time;
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last_job_use_time = ctx->debug_info.last_job_use_time;
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hw_time_total = ctx->debug_info.hw_time_total;
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max_cost_time_per_sec = ctx->debug_info.max_cost_time_per_sec;
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spin_unlock_irqrestore(&ctx->lock, flags);
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seq_printf(m, "----------------- RVE CTX INFO -----------------\n");
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seq_printf(m, "\t [pid: %d] status: %s\n", pid, status ? "active" : "pending");
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seq_printf(m, "\t set cmd num: %d\t finish job sum: %d\n",
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cmd_num, finished_job_count);
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seq_printf(m, "\t last_job_use_time: %u us\t last_job_hw_use_time: %u us",
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last_job_use_time, last_job_hw_use_time);
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seq_printf(m, "\t hw_time_total: %u us\t max_cost_time_per_sec: %u us",
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hw_time_total, max_cost_time_per_sec);
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seq_printf(m, "----------------- RVE INVOKE INFO -----------------\n");
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/* TODO: */
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spin_lock_irqsave(&ctx_manager->lock, flags);
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}
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spin_unlock_irqrestore(&ctx_manager->lock, flags);
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return 0;
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}
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struct rve_debugger_list rve_debugger_root_list[] = {
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{"debug", rve_debug_show, rve_debug_write, NULL},
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{"driver_version", rve_version_show, NULL, NULL},
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{"load", rve_load_show, NULL, NULL},
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{"scheduler_status", rve_scheduler_show, NULL, NULL},
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{"ctx_manager", rve_ctx_manager_show, NULL, NULL},
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};
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static ssize_t rve_debugger_write(struct file *file, const char __user *ubuf,
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size_t len, loff_t *offp)
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{
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struct seq_file *priv = file->private_data;
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struct rve_debugger_node *node = priv->private;
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if (node->info_ent->write)
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return node->info_ent->write(file, ubuf, len, offp);
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else
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return len;
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}
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#ifdef CONFIG_ROCKCHIP_RVE_DEBUG_FS
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static int rve_debugfs_open(struct inode *inode, struct file *file)
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{
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struct rve_debugger_node *node = inode->i_private;
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return single_open(file, node->info_ent->show, node);
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}
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static const struct file_operations rve_debugfs_fops = {
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.owner = THIS_MODULE,
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.open = rve_debugfs_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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.write = rve_debugger_write,
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};
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static int rve_debugfs_remove_files(struct rve_debugger *debugger)
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{
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struct rve_debugger_node *pos, *q;
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struct list_head *entry_list;
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mutex_lock(&debugger->debugfs_lock);
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/* Delete debugfs entry list */
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entry_list = &debugger->debugfs_entry_list;
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list_for_each_entry_safe(pos, q, entry_list, list) {
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if (pos->dent == NULL)
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continue;
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list_del(&pos->list);
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kfree(pos);
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pos = NULL;
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}
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/* Delete all debugfs node in this directory */
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debugfs_remove_recursive(debugger->debugfs_dir);
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debugger->debugfs_dir = NULL;
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mutex_unlock(&debugger->debugfs_lock);
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return 0;
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}
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static int rve_debugfs_create_files(const struct rve_debugger_list *files,
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int count, struct dentry *root,
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struct rve_debugger *debugger)
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{
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int i;
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struct dentry *ent;
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struct rve_debugger_node *tmp;
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for (i = 0; i < count; i++) {
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tmp = kmalloc(sizeof(struct rve_debugger_node), GFP_KERNEL);
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if (tmp == NULL) {
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pr_err("Cannot alloc node path /sys/kernel/debug/%pd/%s\n",
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root, files[i].name);
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goto MALLOC_FAIL;
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}
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tmp->info_ent = &files[i];
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tmp->debugger = debugger;
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ent = debugfs_create_file(files[i].name, S_IFREG | S_IRUGO,
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root, tmp, &rve_debugfs_fops);
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if (!ent) {
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pr_err("Cannot create /sys/kernel/debug/%pd/%s\n", root,
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files[i].name);
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goto CREATE_FAIL;
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}
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tmp->dent = ent;
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mutex_lock(&debugger->debugfs_lock);
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list_add_tail(&tmp->list, &debugger->debugfs_entry_list);
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mutex_unlock(&debugger->debugfs_lock);
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}
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return 0;
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CREATE_FAIL:
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kfree(tmp);
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MALLOC_FAIL:
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rve_debugfs_remove_files(debugger);
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return -1;
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}
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int rve_debugfs_remove(void)
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{
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struct rve_debugger *debugger;
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debugger = rve_drvdata->debugger;
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rve_debugfs_remove_files(debugger);
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return 0;
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}
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int rve_debugfs_init(void)
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{
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int ret;
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struct rve_debugger *debugger;
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debugger = rve_drvdata->debugger;
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|
debugger->debugfs_dir =
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debugfs_create_dir(RVE_DEBUGGER_ROOT_NAME, NULL);
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if (IS_ERR_OR_NULL(debugger->debugfs_dir)) {
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pr_err("failed on mkdir /sys/kernel/debug/%s\n",
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RVE_DEBUGGER_ROOT_NAME);
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debugger->debugfs_dir = NULL;
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return -EIO;
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}
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ret = rve_debugfs_create_files(rve_debugger_root_list, ARRAY_SIZE(rve_debugger_root_list),
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debugger->debugfs_dir, debugger);
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if (ret) {
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pr_err("Could not install rve_debugger_root_list debugfs\n");
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goto CREATE_FAIL;
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}
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return 0;
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|
CREATE_FAIL:
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rve_debugfs_remove();
|
|
return ret;
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}
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#endif /* #ifdef CONFIG_ROCKCHIP_RVE_DEBUG_FS */
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#ifdef CONFIG_ROCKCHIP_RVE_PROC_FS
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static int rve_procfs_open(struct inode *inode, struct file *file)
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{
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struct rve_debugger_node *node = PDE_DATA(inode);
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return single_open(file, node->info_ent->show, node);
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}
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static const struct proc_ops rve_procfs_fops = {
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.proc_open = rve_procfs_open,
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.proc_read = seq_read,
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.proc_lseek = seq_lseek,
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.proc_release = single_release,
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.proc_write = rve_debugger_write,
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};
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static int rve_procfs_remove_files(struct rve_debugger *debugger)
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{
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struct rve_debugger_node *pos, *q;
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struct list_head *entry_list;
|
|
mutex_lock(&debugger->procfs_lock);
|
|
/* Delete procfs entry list */
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entry_list = &debugger->procfs_entry_list;
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list_for_each_entry_safe(pos, q, entry_list, list) {
|
if (pos->pent == NULL)
|
continue;
|
list_del(&pos->list);
|
kfree(pos);
|
pos = NULL;
|
}
|
|
/* Delete all procfs node in this directory */
|
proc_remove(debugger->procfs_dir);
|
debugger->procfs_dir = NULL;
|
|
mutex_unlock(&debugger->procfs_lock);
|
|
return 0;
|
}
|
|
static int rve_procfs_create_files(const struct rve_debugger_list *files,
|
int count, struct proc_dir_entry *root,
|
struct rve_debugger *debugger)
|
{
|
int i;
|
struct proc_dir_entry *ent;
|
struct rve_debugger_node *tmp;
|
|
for (i = 0; i < count; i++) {
|
tmp = kmalloc(sizeof(struct rve_debugger_node), GFP_KERNEL);
|
if (tmp == NULL) {
|
pr_err("Cannot alloc node path for /proc/%s/%s\n",
|
RVE_DEBUGGER_ROOT_NAME, files[i].name);
|
goto MALLOC_FAIL;
|
}
|
|
tmp->info_ent = &files[i];
|
tmp->debugger = debugger;
|
|
ent = proc_create_data(files[i].name, S_IFREG | S_IRUGO,
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root, &rve_procfs_fops, tmp);
|
if (!ent) {
|
pr_err("Cannot create /proc/%s/%s\n",
|
RVE_DEBUGGER_ROOT_NAME, files[i].name);
|
goto CREATE_FAIL;
|
}
|
|
tmp->pent = ent;
|
|
mutex_lock(&debugger->procfs_lock);
|
list_add_tail(&tmp->list, &debugger->procfs_entry_list);
|
mutex_unlock(&debugger->procfs_lock);
|
}
|
|
return 0;
|
|
CREATE_FAIL:
|
kfree(tmp);
|
MALLOC_FAIL:
|
rve_procfs_remove_files(debugger);
|
return -1;
|
}
|
|
int rve_procfs_remove(void)
|
{
|
struct rve_debugger *debugger;
|
|
debugger = rve_drvdata->debugger;
|
|
rve_procfs_remove_files(debugger);
|
|
return 0;
|
}
|
|
int rve_procfs_init(void)
|
{
|
int ret;
|
struct rve_debugger *debugger;
|
|
debugger = rve_drvdata->debugger;
|
|
debugger->procfs_dir = proc_mkdir(RVE_DEBUGGER_ROOT_NAME, NULL);
|
if (IS_ERR_OR_NULL(debugger->procfs_dir)) {
|
pr_err("failed on mkdir /proc/%s\n", RVE_DEBUGGER_ROOT_NAME);
|
debugger->procfs_dir = NULL;
|
return -EIO;
|
}
|
|
ret = rve_procfs_create_files(rve_debugger_root_list, ARRAY_SIZE(rve_debugger_root_list),
|
debugger->procfs_dir, debugger);
|
if (ret) {
|
pr_err("Could not install rve_debugger_root_list procfs\n");
|
goto CREATE_FAIL;
|
}
|
|
return 0;
|
|
CREATE_FAIL:
|
rve_procfs_remove();
|
|
return ret;
|
}
|
#endif /* #ifdef CONFIG_ROCKCHIP_RVE_PROC_FS */
|
