diff options
Diffstat (limited to 'src/parisc/head.S')
| -rw-r--r-- | src/parisc/head.S | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/src/parisc/head.S b/src/parisc/head.S index b4f54a5..eec378b 100644 --- a/src/parisc/head.S +++ b/src/parisc/head.S @@ -122,6 +122,16 @@ ENTRY(enter_smp_idle_loop) /* IDLE LOOP for SMP CPUs - wait for rendenzvous. */ mfctl CPU_HPA_CR_REG, %r25 /* get CPU HPA from cr7 */ +#define PSW_I 1 + rsm PSW_I, %r0 /* disable local irqs */ + + /* EIRR : clear all pending external intr */ +#define CR_EIRR 23 + load32 -1,%r1 + mtctl %r1, CR_EIRR + mfctl CR_EIRR, %r0 + mtctl %r0, CR_EIRR + /* Load IVT for SMT tiny loop exit */ #define CR_IVA 14 load32 BOOTADDR(smp_ivt),%r1 @@ -129,10 +139,9 @@ ENTRY(enter_smp_idle_loop) /* enable CPU local interrupts */ #define CR_EIEM 15 -#define PSW_I 1 load32 1<<31, %r1 /* allow IRQ0 (Timer) */ mtctl %r1, CR_EIEM - ssm PSW_I, %r9 + ssm PSW_I, %r0 /* enable local irqs */ /* endless idle loop, exits to $smp_exit_loop by IRQ only */ $smp_idle_loop: @@ -141,6 +150,10 @@ $smp_idle_loop: $smp_exit_loop: mtctl %r0, CR_EIEM + rsm PSW_I, %r0 /* disable local irqs */ + + /* tell QEMU to drop all local TLB entries. */ + pdtlbe %r0(%sr1,%r0) /* on 64bit: Address of PDCE_PROC for each non-monarch processor in GR26. */ load32 BOOTADDR(pdc_entry), %r26 @@ -148,8 +161,8 @@ $smp_exit_loop: /* jump to rendevouz */ ldw 0x10(%r0),%r3 /* MEM_RENDEZ */ /* ldw 0x28(%r0),%r0 MEM_RENDEZ_HI - assume addr < 4GB */ - bv 0(%r3) - copy %r0,%r2 + load32 enter_smp_idle_loop, %rp + bv,n 0(%r3) $is_monarch_cpu: |