[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.

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index ae5e8d2aba8d574a74708838df7321e767972bdc..c2a5c3097ab7f93e72a2fb492b05691af09b0da4 100644 (file)
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -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