1. 03 3月, 2011 1 次提交
  2. 15 2月, 2011 1 次提交
    • B
      x86, amd: Initialize variable properly · 9e81509e
      Borislav Petkov 提交于
      Commit d518573d ("x86, amd: Normalize compute unit IDs on
      multi-node processors") introduced compute unit normalization
      but causes a compiler warning:
      
       arch/x86/kernel/cpu/amd.c: In function 'amd_detect_cmp':
       arch/x86/kernel/cpu/amd.c:268: warning: 'cores_per_cu' may be used uninitialized in this function
       arch/x86/kernel/cpu/amd.c:268: note: 'cores_per_cu' was declared here
      
      The compiler is right - initialize it with a proper value.
      
      Also, fix up a comment while at it.
      Reported-by: NAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: NBorislav Petkov <borislav.petkov@amd.com>
      Cc: Andreas Herrmann <andreas.herrmann3@amd.com>
      LKML-Reference: <20110214171451.GB10076@kryptos.osrc.amd.com>
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      9e81509e
  3. 10 2月, 2011 1 次提交
  4. 08 2月, 2011 1 次提交
    • H
      x86, amd: Support L3 Cache Partitioning on AMD family 0x15 CPUs · cabb5bd7
      Hans Rosenfeld 提交于
      L3 Cache Partitioning allows selecting which of the 4 L3 subcaches can be used
      for evictions by the L2 cache of each compute unit. By writing a 4-bit
      hexadecimal mask into the the sysfs file
      /sys/devices/system/cpu/cpuX/cache/index3/subcaches, the user can set the
      enabled subcaches for a CPU.
      
      The settings are directly read from and written to the hardware, so there is no
      way to have contradicting settings for two CPUs belonging to the same compute
      unit. Writing will always overwrite any previous setting for a compute unit.
      Signed-off-by: NHans Rosenfeld <hans.rosenfeld@amd.com>
      Cc: <Andreas.Herrmann3@amd.com>
      LKML-Reference: <1297098639-431383-1-git-send-email-hans.rosenfeld@amd.com>
      [ -v3: minor style fixes ]
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      cabb5bd7
  5. 26 1月, 2011 20 次提交
  6. 25 1月, 2011 16 次提交