mirror of https://gitee.com/openkylin/linux.git
b7883a1c4f
The earlier constraint fix for Broadwell CYCLE_ACTIVITY.* forced umask 8 to counter 2. For this it used UEVENT, to match the complete umask. The event list for Broadwell has an additional STALLS_L1D_PENDIND event that uses umask 8, but also sets other bits in the umask. The earlier strict umask match didn't handle this case. Add a new UBIT_EVENT constraint macro that only matches the specified bits in the umask. Then use that macro to handle CYCLE_ACTIVITY.* on Broadwell. The documented event also uses cmask, but there's no need to let the event scheduler know about the cmask, as the scheduling restriction is only tied to the umask. Reported-by: Grant Ayers <ayers@cs.stanford.edu> Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Link: http://lkml.kernel.org/r/1447719667-9998-1-git-send-email-andi@firstfloor.org [ Filled in the missing email address of Grant Ayers - hopefully I got the right one. ] Signed-off-by: Ingo Molnar <mingo@kernel.org> |
||
|---|---|---|
| .. | ||
| alpha | ||
| arc | ||
| arm | ||
| arm64 | ||
| avr32 | ||
| blackfin | ||
| c6x | ||
| cris | ||
| frv | ||
| h8300 | ||
| hexagon | ||
| ia64 | ||
| m32r | ||
| m68k | ||
| metag | ||
| microblaze | ||
| mips | ||
| mn10300 | ||
| nios2 | ||
| openrisc | ||
| parisc | ||
| powerpc | ||
| s390 | ||
| score | ||
| sh | ||
| sparc | ||
| tile | ||
| um | ||
| unicore32 | ||
| x86 | ||
| xtensa | ||
| .gitignore | ||
| Kconfig | ||