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ARM: introduce common set_auxcr/get_auxcr functions

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Move the private set_auxcr/get_auxcr functions from
drivers/cpuidle/cpuidle-calxeda.c so they can be used across platforms.

Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Reviewed-by: Will Deacon <will.deacon@arm.com>
This commit is contained in:
Rob Herring 2013-01-16 17:57:33 -06:00 committed by Nicolas Pitre
parent 62158f817a
commit bbc8d77db6
2 changed files with 14 additions and 14 deletions
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14
arch/arm/include/asm/cp15.h
View File

@ -61,6 +61,20 @@ static inline void set_cr(unsigned int val)
isb();
}
static inline unsigned int get_auxcr(void)
{
unsigned int val;
asm("mrc p15, 0, %0, c1, c0, 1 @ get AUXCR" : "=r" (val));
return val;
}
static inline void set_auxcr(unsigned int val)
{
asm volatile("mcr p15, 0, %0, c1, c0, 1 @ set AUXCR"
: : "r" (val));
isb();
}
#ifndef CONFIG_SMP
extern void adjust_cr(unsigned long mask, unsigned long set);
#endif

14
drivers/cpuidle/cpuidle-calxeda.c
View File

@ -37,20 +37,6 @@
extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
extern void *scu_base_addr;
static inline unsigned int get_auxcr(void)
{
unsigned int val;
asm("mrc p15, 0, %0, c1, c0, 1 @ get AUXCR" : "=r" (val) : : "cc");
return val;
}
static inline void set_auxcr(unsigned int val)
{
asm volatile("mcr p15, 0, %0, c1, c0, 1 @ set AUXCR"
: : "r" (val) : "cc");
isb();
}
static noinline void calxeda_idle_restore(void)
{
set_cr(get_cr() | CR_C);