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-rw-r--r--arch/powerpc/kernel/idle_book3e.S25
1 files changed, 6 insertions, 19 deletions
diff --git a/arch/powerpc/kernel/idle_book3e.S b/arch/powerpc/kernel/idle_book3e.S
index 16c002d6bdf1..ff007b59448d 100644
--- a/arch/powerpc/kernel/idle_book3e.S
+++ b/arch/powerpc/kernel/idle_book3e.S
@@ -29,43 +29,30 @@ _GLOBAL(book3e_idle)
29 wrteei 0 29 wrteei 0
30 30
31 /* Now check if an interrupt came in while we were soft disabled 31 /* Now check if an interrupt came in while we were soft disabled
32 * since we may otherwise lose it (doorbells etc...). We know 32 * since we may otherwise lose it (doorbells etc...).
33 * that since PACAHARDIRQEN will have been cleared in that case.
34 */ 33 */
35 lbz r3,PACAHARDIRQEN(r13) 34 lbz r3,PACAIRQHAPPENED(r13)
36 cmpwi cr0,r3,0 35 cmpwi cr0,r3,0
37 beqlr 36 bnelr
38 37
39 /* Now we are going to mark ourselves as soft and hard enables in 38 /* Now we are going to mark ourselves as soft and hard enabled in
40 * order to be able to take interrupts while asleep. We inform lockdep 39 * order to be able to take interrupts while asleep. We inform lockdep
41 * of that. We don't actually turn interrupts on just yet tho. 40 * of that. We don't actually turn interrupts on just yet tho.
42 */ 41 */
43#ifdef CONFIG_TRACE_IRQFLAGS 42#ifdef CONFIG_TRACE_IRQFLAGS
44 stdu r1,-128(r1) 43 stdu r1,-128(r1)
45 bl .trace_hardirqs_on 44 bl .trace_hardirqs_on
45 addi r1,r1,128
46#endif 46#endif
47 li r0,1 47 li r0,1
48 stb r0,PACASOFTIRQEN(r13) 48 stb r0,PACASOFTIRQEN(r13)
49 stb r0,PACAHARDIRQEN(r13)
50 49
51 /* Interrupts will make use return to LR, so get something we want 50 /* Interrupts will make use return to LR, so get something we want
52 * in there 51 * in there
53 */ 52 */
54 bl 1f 53 bl 1f
55 54
56 /* Hard disable interrupts again */ 55 /* And return (interrupts are on) */
57 wrteei 0
58
59 /* Mark them off again in the PACA as well */
60 li r0,0
61 stb r0,PACASOFTIRQEN(r13)
62 stb r0,PACAHARDIRQEN(r13)
63
64 /* Tell lockdep about it */
65#ifdef CONFIG_TRACE_IRQFLAGS
66 bl .trace_hardirqs_off
67 addi r1,r1,128
68#endif
69 ld r0,16(r1) 56 ld r0,16(r1)
70 mtlr r0 57 mtlr r0
71 blr 58 blr