UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

sh: setup timers in late_time_init() 

This patch moves the SuperH timer setup code from time_init()
to late_time_init(). Good things about this change:
 - interrupts: they are enabled at late_time_init()
 - mm: regular kmalloc() can be used at late_time_init()

Together with moving to late_time_init() this patch changes
the sh_cmt driver to always allocate with kmalloc(). This
simplifies the code a bit and also fixes section mismatches.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Magnus Damm 2009-04-28 08:19:50 +00:00 committed by Paul Mundt
parent 5b644c7a21
commit 8e0b842948
2 changed files with 22 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

34
arch/sh/kernel/time_32.c
View File

@ -237,21 +237,8 @@ unsigned long long sched_clock(void)
} }
#endif #endif
void __init time_init(void) static void __init sh_late_time_init(void)
{ {
if (board_time_init)
board_time_init();
clk_init();
rtc_sh_get_time(&xtime);
set_normalized_timespec(&wall_to_monotonic,
-xtime.tv_sec, -xtime.tv_nsec);
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
local_timer_setup(smp_processor_id());
#endif
/* /*
* Make sure all compiled-in early timers register themselves. * Make sure all compiled-in early timers register themselves.
* Run probe() for one "earlytimer" device. * Run probe() for one "earlytimer" device.
@ -270,3 +257,22 @@ void __init time_init(void)
printk(KERN_INFO "Using %s for system timer\n", sys_timer->name); printk(KERN_INFO "Using %s for system timer\n", sys_timer->name);
} }
void __init time_init(void)
{
if (board_time_init)
board_time_init();
clk_init();
rtc_sh_get_time(&xtime);
set_normalized_timespec(&wall_to_monotonic,
-xtime.tv_sec, -xtime.tv_nsec);
#ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST
local_timer_setup(smp_processor_id());
#endif
late_time_init = sh_late_time_init;
}

9
drivers/clocksource/sh_cmt.c
View File

@ -18,7 +18,6 @@
*/ */
#include <linux/init.h> #include <linux/init.h>
#include <linux/bootmem.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/spinlock.h> #include <linux/spinlock.h>
#include <linux/interrupt.h> #include <linux/interrupt.h>
@ -645,11 +644,7 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
return 0; return 0;
} }
if (is_early_platform_device(pdev))
p = alloc_bootmem(sizeof(*p));
else
p = kmalloc(sizeof(*p), GFP_KERNEL); p = kmalloc(sizeof(*p), GFP_KERNEL);
if (p == NULL) { if (p == NULL) {
dev_err(&pdev->dev, "failed to allocate driver data\n"); dev_err(&pdev->dev, "failed to allocate driver data\n");
return -ENOMEM; return -ENOMEM;
@ -657,11 +652,7 @@ static int __devinit sh_cmt_probe(struct platform_device *pdev)
ret = sh_cmt_setup(p, pdev); ret = sh_cmt_setup(p, pdev);
if (ret) { if (ret) {
if (is_early_platform_device(pdev))
free_bootmem(__pa(p), sizeof(*p));
else
kfree(p); kfree(p);
platform_set_drvdata(pdev, NULL); platform_set_drvdata(pdev, NULL);
} }
return ret; return ret;