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[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>
hifive-unleashed-5.1
David S. Miller 2006-07-13 16:05:26 -07:00
parent 18b0bbd8ca
commit d8573e20d5
2 changed files with 6 additions and 9 deletions
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13
arch/sparc64/kernel/head.S
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@ -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

2
arch/sparc64/kernel/time.c
View File

@ -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 {