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#include <linux/proc_fs.h>
#include <linux/sched.h>
#include <linux/seq_file.h>
#include <linux/kallsyms.h>
#include <linux/utsname.h>
#include <linux/uaccess.h>
#include <linux/stacktrace.h>
#include <asm/stacktrace.h>
#include <linux/pid.h>
#include <linux/debug_locks.h>
#include <linux/delay.h>
#include <linux/slab.h>
//#define pr_fmt(fmt) "["KBUILD_MODNAME"]" fmt
#define SEQ_printf(m, x...) \
do { \
if (m) { \
seq_printf(m, x); \
pr_debug(x); \
} else \
pr_debug(x); \
} while (0)
#define MT_DEBUG_ENTRY(name) \
static int mt_##name##_show(struct seq_file *m, void *v);\
static ssize_t mt_##name##_write(struct file *filp, const char *ubuf, size_t cnt, loff_t *data);\
static int mt_##name##_open(struct inode *inode, struct file *file) \
{ \
return single_open(file, mt_##name##_show, inode->i_private); \
} \
\
static const struct file_operations mt_##name##_fops = { \
.open = mt_##name##_open, \
.write = mt_##name##_write,\
.read = seq_read, \
.llseek = seq_lseek, \
.release = single_release, \
};\
void mt_##name##_switch(int on);
#include <linux/mt_export.h>
static void enable_RA_mode(void)
{
#if 0
int temp;
asm volatile ("MRC p15, 0, %0, c1, c0, 1\n" "BIC %0, %0, #1 << 11\n" /* enable */
"BIC %0, %0, #1 << 12\n" /* enable */
"MCR p15, 0, %0, c1, c0, 1\n":"+r" (temp)
: : "cc");
/* printk(KERN_EMERG"temp = 0x%x\n", temp); */
pr_debug("temp = 0x%x\n", temp);
#endif
}
static void disable_RA_mode(void)
{
#if 0
int temp;
asm volatile ("MRC p15, 0, %0, c1, c0, 1\n" "ORR %0, %0, #1 << 11\n" /* disable */
"ORR %0, %0, #1 << 12\n" /* disable */
"MCR p15, 0, %0, c1, c0, 1\n":"+r" (temp)
: : "cc");
#endif
}
extern void inner_dcache_flush_all(void);
static char buffer_src[4 * 1024 * 1024 + 16];
static char buffer_dst[4 * 1024 * 1024 + 16];
static int flush_cache;
#include "attu64_test_instr.h"
static void test_instr(int printlog)
{
}
static void test_instr2(int printlog)
{
}
extern bool printk_disable_uart;
int hander_debug = 0;
static void (*test_callback) (int log);
static atomic_t thread_exec_count;
static set_affinity(int cpu)
{
int mask_len = DIV_ROUND_UP(NR_CPUS, 32) * 9;
char *mask_str = kmalloc(mask_len, GFP_KERNEL);
cpumask_t mask = { CPU_BITS_NONE };
cpumask_set_cpu(cpu, &mask);
cpumask_scnprintf(mask_str, mask_len, &mask);
sched_setaffinity(current->pid, &mask);
/* printk(KERN_EMERG"set cpu %d affinity, mask [%s]\n",cpu, mask_str); */
kfree(mask_str);
}
static void temp_thread(int cpu)
{
pr_err("[%d] >>>> Start at CPU:%d\n", cpu, cpu);
set_affinity(cpu);
pr_err("[%d] SET affinity done\n", cpu);
/* Sync exec */
atomic_inc(&thread_exec_count);
pr_err("[%d] wait for exec...\n", cpu);
while (atomic_read(&thread_exec_count) < 8);
/* Start teh Evaluation. Running the test */
if (cpu == 0) {
pr_err("[%d]do the test\n", cpu);
test_callback(1);
} else {
pr_err("[%d]do the test\n", cpu);
test_callback(0);
}
/* End */
pr_err("[%d] End\n", cpu);
}
MT_DEBUG_ENTRY(attu);
static int mt_attu_show(struct seq_file *m, void *v)
{
pr_debug(" debug_locks = %d\n", debug_locks);
return 0;
}
static ssize_t mt_attu_write(struct file *filp, const char *ubuf, size_t cnt, loff_t *data)
{
char buf[64];
unsigned long val;
int ret;
if (cnt >= sizeof(buf))
return -EINVAL;
if (copy_from_user(&buf, ubuf, cnt))
return -EFAULT;
buf[cnt] = 0;
printk_disable_uart = 0;
ret = strict_strtoul(buf, 10, &val);
if (ret < 0)
return ret;
if (val == 0) {
/* debug_locks_off(); */
flush_cache ^= 0x1;
printk(KERN_EMERG "switch flusch_cache = %d\n", flush_cache);
} else if (val == 1) {
atomic_set(&thread_exec_count, 0);
kernel_thread(temp_thread, 0, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 1, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 2, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 3, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 4, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 5, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 6, CLONE_FS | CLONE_FILES | SIGCHLD);
kernel_thread(temp_thread, 7, CLONE_FS | CLONE_FILES | SIGCHLD);
} else if (val == 2) {
test_instr(1);
test_callback = test_instr;
} else if (val == 3) {
test_instr_NEON(1);
test_callback = test_instr_NEON;
} else if (val == 4) {
} else if (val == 5) {
} else if (val == 6) {
enable_RA_mode();
pr_err("enable RA mode\n");
} else if (val == 7) {
disable_RA_mode();
pr_err("disable RA mode\n");
} else if (val == 8) {
hander_debug = 1;
} else if (val == 9) {
hander_debug = 0;
}
return cnt;
}
static int __init init_auto_tune(void)
{
struct proc_dir_entry *pe;
flush_cache = 1;
test_callback = test_instr;
pe = proc_create("mtprof/attu", 0664, NULL, &mt_attu_fops);
if (!pe)
return -ENOMEM;
return 0;
}
late_initcall(init_auto_tune);
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