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

powerpc: Convert nv_lock to raw_spinlock 

nv_lock needs to be a real spinlock in RT. Convert it to raw_spinlock.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Thomas Gleixner 2010-02-18 02:22:59 +00:00 committed by Benjamin Herrenschmidt
parent be833f3371
commit 7d725bdc1b
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/powerpc/platforms/powermac/nvram.c
View File

@ -80,7 +80,7 @@ static int is_core_99;
static int core99_bank = 0;
static int nvram_partitions[3];
// XXX Turn that into a sem
static DEFINE_SPINLOCK(nv_lock);
static DEFINE_RAW_SPINLOCK(nv_lock);
static int (*core99_write_bank)(int bank, u8* datas);
static int (*core99_erase_bank)(int bank);
@ -165,10 +165,10 @@ static unsigned char indirect_nvram_read_byte(int addr)
unsigned char val;
unsigned long flags;
spin_lock_irqsave(&nv_lock, flags);
raw_spin_lock_irqsave(&nv_lock, flags);
out_8(nvram_addr, addr >> 5);
val = in_8(&nvram_data[(addr & 0x1f) << 4]);
spin_unlock_irqrestore(&nv_lock, flags);
raw_spin_unlock_irqrestore(&nv_lock, flags);
return val;
}
@ -177,10 +177,10 @@ static void indirect_nvram_write_byte(int addr, unsigned char val)
{
unsigned long flags;
spin_lock_irqsave(&nv_lock, flags);
raw_spin_lock_irqsave(&nv_lock, flags);
out_8(nvram_addr, addr >> 5);
out_8(&nvram_data[(addr & 0x1f) << 4], val);
spin_unlock_irqrestore(&nv_lock, flags);
raw_spin_unlock_irqrestore(&nv_lock, flags);
}
@ -481,7 +481,7 @@ static void core99_nvram_sync(void)
if (!is_core_99 || !nvram_data || !nvram_image)
return;
spin_lock_irqsave(&nv_lock, flags);
raw_spin_lock_irqsave(&nv_lock, flags);
if (!memcmp(nvram_image, (u8*)nvram_data + core99_bank*NVRAM_SIZE,
NVRAM_SIZE))
goto bail;
@ -503,7 +503,7 @@ static void core99_nvram_sync(void)
if (core99_write_bank(core99_bank, nvram_image))
printk("nvram: Error writing bank %d\n", core99_bank);
bail:
spin_unlock_irqrestore(&nv_lock, flags);
raw_spin_unlock_irqrestore(&nv_lock, flags);
#ifdef DEBUG
mdelay(2000);