diff options
Diffstat (limited to 'kernel/arch/arm/include/asm/entry-macro-multi.S')
| -rw-r--r-- | kernel/arch/arm/include/asm/entry-macro-multi.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/asm/entry-macro-multi.S b/kernel/arch/arm/include/asm/entry-macro-multi.S new file mode 100644 index 000000000..469a2b30f --- /dev/null +++ b/kernel/arch/arm/include/asm/entry-macro-multi.S @@ -0,0 +1,39 @@ +#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 * + @ + adrne lr, BSYM(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 + adrne lr, BSYM(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 |