diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-19 15:30:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-19 15:30:15 -0700 |
| commit | d6c77973679d56a1834d8f8f9361f5fd0c7f4811 (patch) | |
| tree | 494b4dd7bda7fb4f650645c7930f58dc185d29ae /arch/parisc/include/asm/prefetch.h | |
| parent | 5d1204582e7bc0682fb019e5666bd62cc27260b4 (diff) | |
| parent | b3cb8674811d1851bbf1486a73d62b90c119b994 (diff) | |
Merge tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6
Pull PA-RISC fixes from James Bottomley:
"This is a set of three bug fixes that gets parisc running again on
systems with PA1.1 processors.
Two fix regressions introduced in 2.6.39 and one fixes a prefetch bug
that only affects PA7300LC processors. We also have another pending
fix to do with the sectional arrangement of vmlinux.lds, but there's a
query on it during testing on one particular system type, so I'll hold
off sending it in for now."
* tag 'parisc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/parisc-2.6:
[PARISC] fix panic on prefetch(NULL) on PA7300LC
[PARISC] fix crash in flush_icache_page_asm on PA1.1
[PARISC] fix PA1.1 oops on boot
Diffstat (limited to 'arch/parisc/include/asm/prefetch.h')
| -rw-r--r-- | arch/parisc/include/asm/prefetch.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/parisc/include/asm/prefetch.h b/arch/parisc/include/asm/prefetch.h index c5edc60c059f..1ee7c82672c1 100644 --- a/arch/parisc/include/asm/prefetch.h +++ b/arch/parisc/include/asm/prefetch.h @@ -21,7 +21,12 @@ #define ARCH_HAS_PREFETCH static inline void prefetch(const void *addr) { - __asm__("ldw 0(%0), %%r0" : : "r" (addr)); + __asm__( +#ifndef CONFIG_PA20 + /* Need to avoid prefetch of NULL on PA7300LC */ + " extrw,u,= %0,31,32,%%r0\n" +#endif + " ldw 0(%0), %%r0" : : "r" (addr)); } /* LDD is a PA2.0 addition. */ |