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Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

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Pull sparc changes from David S Miller:
 "There is an attempt to fix a bad interaction between syscall tracing
  and force_successful_syscall() from Al Viro, but it needs to be redone
  as it introduced regressions and thus had to be reverted for now.

  Al is working on an updated version.

  But what we do have here are some significant bzero/memset
  improvements for Niagara-4.  An 8K page can be cleared in around 600
  cycles, because we essentially have a store that behaves like
  powerpc's dcbz that we can actually make real use of."

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  Revert strace hiccups fix.
  sparc64: Niagara-4 bzero/memset, plus use MRU stores in page copy.
  sparc64: Fix strace hiccups when force_successful_syscall() triggers.
  sparc64: Rearrange thread info to cheaply clear syscall noerror state.
This commit is contained in:
Linus Torvalds
2012-10-09 06:39:30 +09:00
parent e9eca4de95 2863bc54ec
commit 3c5af8d1aa
7 changed files with 176 additions and 12 deletions
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19
arch/sparc/include/asm/asi.h
View File

@@ -270,9 +270,28 @@
#define ASI_BLK_INIT_QUAD_LDD_P 0xe2 /* (NG) init-store, twin load,
* primary, implicit
*/
#define ASI_BLK_INIT_QUAD_LDD_S 0xe3 /* (NG) init-store, twin load,
* secondary, implicit
*/
#define ASI_BLK_P 0xf0 /* Primary, blk ld/st */
#define ASI_BLK_S 0xf1 /* Secondary, blk ld/st */
#define ASI_ST_BLKINIT_MRU_P 0xf2 /* (NG4) init-store, twin load,
* Most-Recently-Used, primary,
* implicit
*/
#define ASI_ST_BLKINIT_MRU_S 0xf2 /* (NG4) init-store, twin load,
* Most-Recently-Used, secondary,
* implicit
*/
#define ASI_BLK_PL 0xf8 /* Primary, blk ld/st, little */
#define ASI_BLK_SL 0xf9 /* Secondary, blk ld/st, little */
#define ASI_ST_BLKINIT_MRU_PL 0xfa /* (NG4) init-store, twin load,
* Most-Recently-Used, primary,
* implicit, little-endian
*/
#define ASI_ST_BLKINIT_MRU_SL 0xfb /* (NG4) init-store, twin load,
* Most-Recently-Used, secondary,
* implicit, little-endian
*/
#endif /* _SPARC_ASI_H */