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[IA64] Use per iosapic lock for indirect iosapic register access

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Use per-iosapic lock for indirect iosapic register access. It reduces
lock contention.

Signed-off-by: Kenji Kaneshige <[email protected]>
Signed-off-by: Yasuaki Ishimatsu <[email protected]>
Signed-off-by: Tony Luck <[email protected]>
This commit is contained in:
Yasuaki Ishimatsu 2007-07-17 21:21:26 +09:00 • committed by Tony Luck
commit c1726d6f1a
2 changed files with 31 additions and 30 deletions
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4
include/asm-ia64/iosapic.h
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@ -53,13 +53,13 @@
#define NR_IOSAPICS 256
static inline unsigned int iosapic_read(char __iomem *iosapic, unsigned int reg)
static inline unsigned int __iosapic_read(char __iomem *iosapic, unsigned int reg)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
return readl(iosapic + IOSAPIC_WINDOW);
}
static inline void iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
static inline void __iosapic_write(char __iomem *iosapic, unsigned int reg, u32 val)
{
writel(reg, iosapic + IOSAPIC_REG_SELECT);
writel(val, iosapic + IOSAPIC_WINDOW);