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Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

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* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Bypass hcall stats until cpu features have run
  [POWERPC] Avoid hypervisor statistics calculation in real mode
  [POWERPC] Fix atomicity of TIF update in flush_thread()
This commit is contained in:
Linus Torvalds 2007-03-22 19:42:42 -07:00
commit 7f52a3afc4
5 changed files with 78 additions and 4 deletions
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14
include/asm-powerpc/hvcall.h
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@ -236,6 +236,20 @@ long plpar_hcall_norets(unsigned long opcode, ...);
#define PLPAR_HCALL_BUFSIZE 4
long plpar_hcall(unsigned long opcode, unsigned long *retbuf, ...);
/**
* plpar_hcall_raw: - Make a hypervisor call without calculating hcall stats
* @opcode: The hypervisor call to make.
* @retbuf: Buffer to store up to 4 return arguments in.
*
* This call supports up to 6 arguments and 4 return arguments. Use
* PLPAR_HCALL_BUFSIZE to size the return argument buffer.
*
* Used when phyp interface needs to be called in real mode. Similar to
* plpar_hcall, but plpar_hcall_raw works in real mode and does not
* calculate hypervisor call statistics.
*/
long plpar_hcall_raw(unsigned long opcode, unsigned long *retbuf, ...);
/**
* plpar_hcall9: - Make a pseries hypervisor call with up to 9 return arguments
* @opcode: The hypervisor call to make.