Commit 4ea21dd5 authored by Keith M. Wesolowski's avatar Keith M. Wesolowski

[SPARC32]: Optimize SMP IPI handling

Since smp_stop_cpu is not used, we don't need to test for it.  This
saves several instructions in the IPI handler and simplifies the code.
parent ae4aaac0
......@@ -353,18 +353,12 @@ maybe_smp4m_msg:
GET_PROCESSOR4M_ID(o3)
set sun4m_interrupts, %l5
ld [%l5], %o5
sethi %hi(0x60000000), %o4
sethi %hi(0x40000000), %o2
sll %o3, 12, %o3
ld [%o5 + %o3], %o1
andcc %o1, %o4, %g0
andcc %o1, %o2, %g0
be,a smp4m_ticker
cmp %l7, 14
sethi %hi(0x40000000), %o2
add %o5, %o3, %o5
andcc %o1, %o2, %g0
be,a 1f
sethi %hi(0x20000000), %o2
1:
st %o2, [%o5 + 0x4]
WRITE_PAUSE
ld [%o5], %g0
......@@ -374,15 +368,9 @@ maybe_smp4m_msg:
WRITE_PAUSE
wr %l4, PSR_ET, %psr
WRITE_PAUSE
srl %o2, (16+14), %o2
tst %o2
bne 2f
nop
call smp_reschedule_irq
add %o7, 8, %o7
2:
call smp_stop_cpu_irq
nop
RESTORE_ALL
.align 4
......
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