diff options
Diffstat (limited to 'arch/arm/kernel/fiq.c')
| -rw-r--r-- | arch/arm/kernel/fiq.c | 45 |
1 files changed, 2 insertions, 43 deletions
diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c index e72dc34eea1c..4c164ece5891 100644 --- a/arch/arm/kernel/fiq.c +++ b/arch/arm/kernel/fiq.c @@ -89,47 +89,6 @@ void set_fiq_handler(void *start, unsigned int length) flush_icache_range(0x1c, 0x1c + length); } -/* - * Taking an interrupt in FIQ mode is death, so both these functions - * disable irqs for the duration. Note - these functions are almost - * entirely coded in assembly. - */ -void __naked set_fiq_regs(struct pt_regs *regs) -{ - register unsigned long tmp; - asm volatile ( - "mov ip, sp\n\ - stmfd sp!, {fp, ip, lr, pc}\n\ - sub fp, ip, #4\n\ - mrs %0, cpsr\n\ - msr cpsr_c, %2 @ select FIQ mode\n\ - mov r0, r0\n\ - ldmia %1, {r8 - r14}\n\ - msr cpsr_c, %0 @ return to SVC mode\n\ - mov r0, r0\n\ - ldmfd sp, {fp, sp, pc}" - : "=&r" (tmp) - : "r" (®s->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | FIQ_MODE)); -} - -void __naked get_fiq_regs(struct pt_regs *regs) -{ - register unsigned long tmp; - asm volatile ( - "mov ip, sp\n\ - stmfd sp!, {fp, ip, lr, pc}\n\ - sub fp, ip, #4\n\ - mrs %0, cpsr\n\ - msr cpsr_c, %2 @ select FIQ mode\n\ - mov r0, r0\n\ - stmia %1, {r8 - r14}\n\ - msr cpsr_c, %0 @ return to SVC mode\n\ - mov r0, r0\n\ - ldmfd sp, {fp, sp, pc}" - : "=&r" (tmp) - : "r" (®s->ARM_r8), "I" (PSR_I_BIT | PSR_F_BIT | FIQ_MODE)); -} - int claim_fiq(struct fiq_handler *f) { int ret = 0; @@ -174,8 +133,8 @@ void disable_fiq(int fiq) } EXPORT_SYMBOL(set_fiq_handler); -EXPORT_SYMBOL(set_fiq_regs); -EXPORT_SYMBOL(get_fiq_regs); +EXPORT_SYMBOL(__set_fiq_regs); /* defined in fiqasm.S */ +EXPORT_SYMBOL(__get_fiq_regs); /* defined in fiqasm.S */ EXPORT_SYMBOL(claim_fiq); EXPORT_SYMBOL(release_fiq); EXPORT_SYMBOL(enable_fiq); |