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authorDavid S. Miller <davem@sunset.davemloft.net>2006-07-13 16:05:26 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-07-14 17:00:21 -0700
commitd8573e20d5d6974305599dde42b5dd7583310ccf (patch)
treee4469e74b112413c5d781038424a303068113c48
parent18b0bbd8ca6d3cb90425aa0d77b99a762c6d6de3 (diff)
[SPARC64]: Make sure IRQs are disabled properly during early boot.
Else we trigger the new irqs_disable() assertion in start_kernel(). Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc64/kernel/head.S13
-rw-r--r--arch/sparc64/kernel/time.c2
2 files changed, 6 insertions, 9 deletions
diff --git a/arch/sparc64/kernel/head.S b/arch/sparc64/kernel/head.S
index 75684b56767..c8e9dc9d68a 100644
--- a/arch/sparc64/kernel/head.S
+++ b/arch/sparc64/kernel/head.S
@@ -551,9 +551,10 @@ setup_trap_table:
save %sp, -192, %sp
/* Force interrupts to be disabled. */
- rdpr %pstate, %o1
- andn %o1, PSTATE_IE, %o1
+ rdpr %pstate, %l0
+ andn %l0, PSTATE_IE, %o1
wrpr %o1, 0x0, %pstate
+ rdpr %pil, %l1
wrpr %g0, 15, %pil
/* Make the firmware call to jump over to the Linux trap table. */
@@ -622,11 +623,9 @@ setup_trap_table:
call init_irqwork_curcpu
nop
- /* Now we can turn interrupts back on. */
- rdpr %pstate, %o1
- or %o1, PSTATE_IE, %o1
- wrpr %o1, 0, %pstate
- wrpr %g0, 0x0, %pil
+ /* Now we can restore interrupt state. */
+ wrpr %l0, 0, %pstate
+ wrpr %l1, 0x0, %pil
ret
restore
diff --git a/arch/sparc64/kernel/time.c b/arch/sparc64/kernel/time.c
index b43de647ba7..094d3e35be1 100644
--- a/arch/sparc64/kernel/time.c
+++ b/arch/sparc64/kernel/time.c
@@ -928,8 +928,6 @@ static void sparc64_start_timers(void)
__asm__ __volatile__("wrpr %0, 0x0, %%pstate"
: /* no outputs */
: "r" (pstate));
-
- local_irq_enable();
}
struct freq_table {