linux_old1/arch/arm/include/asm/entry-macro-multi.S

40 lines
687 B
ArmAsm

#include <asm/assembler.h>
/*
* Interrupt handling. Preserves r7, r8, r9
*/
.macro arch_irq_handler_default
get_irqnr_preamble r6, lr
1: get_irqnr_and_base r0, r2, r6, lr
movne r1, sp
@
@ routine called with r0 = irq number, r1 = struct pt_regs *
@
badrne lr, 1b
bne asm_do_IRQ
#ifdef CONFIG_SMP
/*
* XXX
*
* this macro assumes that irqstat (r2) and base (r6) are
* preserved from get_irqnr_and_base above
*/
ALT_SMP(test_for_ipi r0, r2, r6, lr)
ALT_UP_B(9997f)
movne r1, sp
badrne lr, 1b
bne do_IPI
#endif
9997:
.endm
.macro arch_irq_handler, symbol_name
.align 5
.global \symbol_name
\symbol_name:
mov r8, lr
arch_irq_handler_default
ret r8
.endm