diff options
| author | Takuya ASADA <syuu@cvs.openbsd.org> | 2010-09-12 12:05:38 +0000 |
|---|---|---|
| committer | Takuya ASADA <syuu@cvs.openbsd.org> | 2010-09-12 12:05:38 +0000 |
| commit | 02723f0de9100c40e75c482202ba0fc83614f121 (patch) | |
| tree | 5ecf59ea222fa0c2763d5e5bd663aa6a75576c9c /sys/arch | |
| parent | 84cf42af2eec4a8c356dbdda0af212242e93a196 (diff) | |
Avoid machine-check exception on OCTEON. ok miod@
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/mips64/mips64/tlbhandler.S | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/arch/mips64/mips64/tlbhandler.S b/sys/arch/mips64/mips64/tlbhandler.S index f1ee520ed40..d96e343d765 100644 --- a/sys/arch/mips64/mips64/tlbhandler.S +++ b/sys/arch/mips64/mips64/tlbhandler.S @@ -1,4 +1,4 @@ -/* $OpenBSD: tlbhandler.S,v 1.31 2010/02/13 14:07:30 miod Exp $ */ +/* $OpenBSD: tlbhandler.S,v 1.32 2010/09/12 12:05:37 syuu Exp $ */ /* * Copyright (c) 1995-2004 Opsycon AB (www.opsycon.se / www.opsycon.com) @@ -403,7 +403,12 @@ LEAF(tlb_flush, 0) LA v0, CKSEG0_BASE # invalid address dmfc0 ta0, COP_0_TLB_HI # Save the PID +#ifdef CPU_OCTEON + mul ta2, ta1, 2 * PAGE_SIZE + addu v0, v0, ta2 +#else dmtc0 v0, COP_0_TLB_HI # Mark entry high as invalid +#endif dmtc0 zero, COP_0_TLB_LO0 # Zero out low entry0. dmtc0 zero, COP_0_TLB_LO1 # Zero out low entry1. mtc0 zero, COP_0_TLB_PG_MASK # Zero out mask entry. @@ -412,6 +417,10 @@ LEAF(tlb_flush, 0) */ 1: mtc0 ta1, COP_0_TLB_INDEX # Set the index register. +#ifdef CPU_OCTEON + dmtc0 v0, COP_0_TLB_HI # Mark entry high as invalid + addu v0, v0, 2 * PAGE_SIZE +#endif addu ta1, ta1, 1 # Increment index. nop nop @@ -461,6 +470,10 @@ LEAF(tlb_flush_addr, 0) mfc0 v0, COP_0_TLB_INDEX # See what we got bltz v0, 1f # index < 0 => !found nop +#ifdef CPU_OCTEON + mul ta2, v0, 2 * PAGE_SIZE + addu ta1, ta1, ta2 +#endif dmtc0 ta1, COP_0_TLB_HI # Mark entry high as invalid dmtc0 zero, COP_0_TLB_LO0 # Zero out low entry. |