[POWERPC] Add IRQSTACKS support on ppc32

[firefly-linux-kernel-4.4.55.git] / arch / powerpc / kernel / misc_32.S

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 92ccc6fcc5b03ba87f0e6b52e9dedeece2d874cc..89aaaa6f3561549c896fcd9983a04e96cba72410 100644 (file)
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -32,6 +32,31 @@
 
        .text
 
+#ifdef CONFIG_IRQSTACKS
+_GLOBAL(call_do_softirq)
+       mflr    r0
+       stw     r0,4(r1)
+       stwu    r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
+       mr      r1,r3
+       bl      __do_softirq
+       lwz     r1,0(r1)
+       lwz     r0,4(r1)
+       mtlr    r0
+       blr
+
+_GLOBAL(call_handle_irq)
+       mflr    r0
+       stw     r0,4(r1)
+       mtctr   r6
+       stwu    r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
+       mr      r1,r5
+       bctrl
+       lwz     r1,0(r1)
+       lwz     r0,4(r1)
+       mtlr    r0
+       blr
+#endif /* CONFIG_IRQSTACKS */
+
 /*
  * This returns the high 64 bits of the product of two 64-bit numbers.
  */