Re: [PATCH 2/3] powerpc: fix regression of per-CPU DSCR setting

2014-06-02 Thread Madhavan Srinivasan
On Wednesday 21 May 2014 12:02 PM, Sam Bobroff wrote: Since commit efcac65 powerpc: Per process DSCR + some fixes (try#4) it is no longer possible to set the DSCR on a per-CPU basis. The old behaviour was to minipulate the DSCR SPR directly but this is no longer sufficient: the value is

[PATCH 2/3] powerpc: fix regression of per-CPU DSCR setting

2014-05-21 Thread Sam Bobroff
Since commit efcac65 powerpc: Per process DSCR + some fixes (try#4) it is no longer possible to set the DSCR on a per-CPU basis. The old behaviour was to minipulate the DSCR SPR directly but this is no longer sufficient: the value is quickly overwritten by context switching. This patch stores