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-rw-r--r--arch/tile/kernel/entry.S5
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/tile/kernel/entry.S b/arch/tile/kernel/entry.S
index 431e9ae60488..133c4b56a99e 100644
--- a/arch/tile/kernel/entry.S
+++ b/arch/tile/kernel/entry.S
@@ -85,6 +85,7 @@ STD_ENTRY(cpu_idle_on_new_stack)
/* Loop forever on a nap during SMP boot. */
STD_ENTRY(smp_nap)
nap
+ nop /* avoid provoking the icache prefetch with a jump */
j smp_nap /* we are not architecturally guaranteed not to exit nap */
jrp lr /* clue in the backtracer */
STD_ENDPROC(smp_nap)
@@ -99,11 +100,13 @@ STD_ENTRY(smp_nap)
*/
STD_ENTRY(_cpu_idle)
movei r1, 1
+ IRQ_ENABLE_LOAD(r2, r3)
mtspr INTERRUPT_CRITICAL_SECTION, r1
- IRQ_ENABLE(r2, r3) /* unmask, but still with ICS set */
+ IRQ_ENABLE_APPLY(r2, r3) /* unmask, but still with ICS set */
mtspr INTERRUPT_CRITICAL_SECTION, zero
.global _cpu_idle_nap
_cpu_idle_nap:
nap
+ nop /* avoid provoking the icache prefetch with a jump */
jrp lr
STD_ENDPROC(_cpu_idle)