redonkable
/
alistair23-linux
1
0
Fork 0
Code Releases Activity

Remove CONFIG_PM dependency from au1x wait in cpu_probe. 

Additional work necessary to completely remove that config option.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
hifive-unleashed-5.1
Pete Popov 2005-04-07 00:42:10 +00:00 committed by Ralf Baechle
parent 3b495f2bb7
commit 494900af68
3 changed files with 22 additions and 29 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
arch/mips/au1000/common/power.c
View File

@ -297,7 +297,6 @@ static int pm_do_suspend(ctl_table * ctl, int write, struct file *file,
void *buffer, size_t * len)
{
int retval = 0;
void au1k_wait(void);
if (!write) {
*len = 0;
@ -306,7 +305,7 @@ static int pm_do_suspend(ctl_table * ctl, int write, struct file *file,
if (retval)
return retval;
suspend_mode = 1;
au1k_wait();
retval = pm_send_all(PM_RESUME, (void *) 0);
}
return retval;

5
arch/mips/au1000/common/time.c
View File

@ -57,7 +57,7 @@ unsigned long missed_heart_beats = 0;
static unsigned long r4k_offset; /* Amount to increment compare reg each time */
static unsigned long r4k_cur; /* What counter should be at next timer irq */
int no_au1xxx_32khz;
void (*au1k_wait_ptr)(void);
int allow_au1k_wait = 0; /* default off for CP0 Counter */
/* Cycle counter value at the previous timer interrupt.. */
static unsigned int timerhi = 0, timerlo = 0;
@ -387,7 +387,6 @@ void au1xxx_timer_setup(struct irqaction *irq)
{
unsigned int est_freq;
extern unsigned long (*do_gettimeoffset)(void);
extern void au1k_wait(void);
printk("calculating r4koff... ");
r4k_offset = cal_r4koff();
@ -451,7 +450,7 @@ void au1xxx_timer_setup(struct irqaction *irq)
/* We can use the real 'wait' instruction.
*/
au1k_wait_ptr = au1k_wait;
allow_au1k_wait = 1;
}
#else

43
arch/mips/kernel/cpu-probe.c
View File

@ -51,29 +51,25 @@ static void r4k_wait(void)
".set\tmips0");
}
/*
* The Au1xxx wait is available only if we run CONFIG_PM and
* the timer setup found we had a 32KHz counter available.
* There are still problems with functions that may call au1k_wait
* directly, but that will be discovered pretty quickly.
*/
extern void (*au1k_wait_ptr)(void);
void au1k_wait(void)
/* The Au1xxx wait is available only if using 32khz counter or
* external timer source, but specifically not CP0 Counter. */
static void au1k_wait(void)
{
#ifdef CONFIG_PM
unsigned long addr;
/* using the wait instruction makes CP0 counter unusable */
__asm__(".set\tmips3\n\t"
__asm__("la %0,au1k_wait\n\t"
".set mips3\n\t"
"cache 0x14,0(%0)\n\t"
"cache 0x14,32(%0)\n\t"
"sync\n\t"
"nop\n\t"
"wait\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
"nop\n\t"
".set\tmips0");
#else
__asm__("nop\n\t"
"nop");
#endif
".set mips0\n\t"
: : "r" (addr));
}
static inline void check_wait(void)
@ -112,21 +108,20 @@ static inline void check_wait(void)
cpu_wait = r4k_wait;
printk(" available.\n");
break;
#ifdef CONFIG_PM
case CPU_AU1000:
case CPU_AU1100:
case CPU_AU1500:
case CPU_AU1550:
case CPU_AU1200:
if (au1k_wait_ptr != NULL) {
cpu_wait = au1k_wait_ptr;
printk(" available.\n");
}
else {
printk(" unavailable.\n");
{
extern int allow_au1k_wait; /* au1000/common/time.c */
if (allow_au1k_wait) {
cpu_wait = au1k_wait;
printk(" available.\n");
} else
printk(" unavailable.\n");
}
break;
#endif
default:
printk(" unavailable.\n");
break;