提交 5e185581 编写于 作者: J James Bottomley

[PARISC] fix PA1.1 oops on boot

All PA1.1 systems have been oopsing on boot since

commit f311847c
Author: James Bottomley <James.Bottomley@HansenPartnership.com>
Date:   Wed Dec 22 10:22:11 2010 -0600

    parisc: flush pages through tmpalias space

because a PA2.0 instruction was accidentally introduced into the PA1.1 TLB
insertion interruption path when it was consolidated with the do_alias macro.
Fix the do_alias macro only to use PA2.0 instructions if compiled for 64 bit.
Cc: stable@vger.kernel.org  #2.6.39+
Signed-off-by: NJames Bottomley <JBottomley@Parallels.com>
上级 568b4455
......@@ -581,7 +581,11 @@
*/
cmpiclr,= 0x01,\tmp,%r0
ldi (_PAGE_DIRTY|_PAGE_READ|_PAGE_WRITE),\prot
#ifdef CONFIG_64BIT
depd,z \prot,8,7,\prot
#else
depw,z \prot,8,7,\prot
#endif
/*
* OK, it is in the temp alias region, check whether "from" or "to".
* Check "subtle" note in pacache.S re: r23/r26.
......
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