diff options
Diffstat (limited to 'include/asm-arm/arch-realview/entry-macro.S')
| -rw-r--r-- | include/asm-arm/arch-realview/entry-macro.S | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/include/asm-arm/arch-realview/entry-macro.S b/include/asm-arm/arch-realview/entry-macro.S index 2712ba7..4df469b 100644 --- a/include/asm-arm/arch-realview/entry-macro.S +++ b/include/asm-arm/arch-realview/entry-macro.S @@ -47,3 +47,17 @@ cmpcs \irqnr, \irqnr .endm + + /* We assume that irqstat (the raw value of the IRQ acknowledge + * register) is preserved from the macro above. + * If there is an IPI, we immediately signal end of interrupt on the + * controller, since this requires the original irqstat value which + * we won't easily be able to recreate later. + */ + + .macro test_for_ipi, irqnr, irqstat, base, tmp + bic \irqnr, \irqstat, #0x1c00 + cmp \irqnr, #16 + strcc \irqstat, [\base, #GIC_CPU_EOI] + cmpcs \irqnr, \irqnr + .endm |