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[POWERPC] PS3: Add os-area rtc_diff set/get routines

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Updates for PS3 os-area rtc_diff set/get routines
o Add a new routine ps3_os_area_set_rtc_diff().
o Rename ps3_os_area_rtc_diff() to ps3_os_area_get_rtc_diff().
o Remove static variable rtc_shift with calls to ps3_os_area_get_rtc_diff().

Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
This commit is contained in:
Geoff Levand 2007-10-07 07:35:46 +10:00 committed by Paul Mackerras
parent 418ef2094e
commit d7b98e3dd8
3 changed files with 22 additions and 14 deletions
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19
arch/powerpc/platforms/ps3/os-area.c
View File

@ -261,15 +261,30 @@ void __init ps3_os_area_save_params(void)
}
/**
* ps3_os_area_rtc_diff - Returns the rtc diff value.
* ps3_os_area_get_rtc_diff - Returns the rtc diff value.
*/
u64 ps3_os_area_rtc_diff(void)
u64 ps3_os_area_get_rtc_diff(void)
{
return saved_params.rtc_diff ? saved_params.rtc_diff
: SECONDS_FROM_1970_TO_2000;
}
/**
* ps3_os_area_set_rtc_diff - Set the rtc diff value.
*
* An asynchronous write is needed to support writing updates from
* the timer interrupt context.
*/
void ps3_os_area_set_rtc_diff(u64 rtc_diff)
{
if (saved_params.rtc_diff != rtc_diff) {
saved_params.rtc_diff = rtc_diff;
os_area_queue_work();
}
}
/**
* ps3_os_area_get_av_multi_out - Returns the default video mode.
*/

3
arch/powerpc/platforms/ps3/platform.h
View File

@ -63,7 +63,8 @@ int ps3_set_rtc_time(struct rtc_time *time);
/* os area */
void __init ps3_os_area_save_params(void);
u64 ps3_os_area_rtc_diff(void);
u64 ps3_os_area_get_rtc_diff(void);
void ps3_os_area_set_rtc_diff(u64 rtc_diff);
/* spu */

14
arch/powerpc/platforms/ps3/time.c
View File

@ -50,12 +50,6 @@ static void __maybe_unused _dump_time(int time, const char *func,
_dump_tm(&tm, func, line);
}
/**
* rtc_shift - Difference in seconds between 1970 and the ps3 rtc value.
*/
static s64 rtc_shift;
void __init ps3_calibrate_decr(void)
{
int result;
@ -66,8 +60,6 @@ void __init ps3_calibrate_decr(void)
ppc_tb_freq = tmp;
ppc_proc_freq = ppc_tb_freq * 40;
rtc_shift = ps3_os_area_rtc_diff();
}
static u64 read_rtc(void)
@ -87,18 +79,18 @@ int ps3_set_rtc_time(struct rtc_time *tm)
u64 now = mktime(tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec);
rtc_shift = now - read_rtc();
ps3_os_area_set_rtc_diff(now - read_rtc());
return 0;
}
void ps3_get_rtc_time(struct rtc_time *tm)
{
to_tm(read_rtc() + rtc_shift, tm);
to_tm(read_rtc() + ps3_os_area_get_rtc_diff(), tm);
tm->tm_year -= 1900;
tm->tm_mon -= 1;
}
unsigned long __init ps3_get_boot_time(void)
{
return read_rtc() + rtc_shift;
return read_rtc() + ps3_os_area_get_rtc_diff();
}