[PATCH V2 0/9] Updates to EDAC mce_amd_inj

[Aravind Gopalakrishnan <Aravind.Gopalakrishnan@amd.com>]

Patch 1, 2: Cleanups to the code. No functional change
Patch 3: Modifying flags attribute to accept string arguments and
	 have do_inject() recognize these changes before injecting
	 a 'sw' or 'hw' error
Patch 4: Extend flags attribute to accept values of 'dfr', 'thr'.
	 These values will be used to trigger deferred error/threshold
	 error apic interrupts respectively
Patch 5: Include permissions for each file within struct dfs_node dfs_fls[]
Patch 6: Add README file that describes the attributes
Patch 7: Factor out number of nodes calculation from amd_get_topology().
	 No functional change.
Patch 8: Provide accessor function to obtain the number of nodes per processor
Patch 9: Modify injection mechanism for bank 4 errors. Since they are
	 typically logged or reported only on NBC, we make sure that
	 we inject on the correct core here.

Changes in V2: (per Boris)
 - Remove arbitrary definition of MAX_FLAG_OPT_SIZE and define it
   to sizeof the flag option we are introducing in the patch (Patch 3)
   - Increase it later as needed (Patch 4)
 - Simplify string comparison loop in __set_inj()
 - Move return value assignment in flags_write() to after initial condition
 - Remove hardcoded numbers used to inject deferred/threshold interrupts
   and use respective macros instead
 - Use switch-case to decide between injecting apic interrupts and #MC
 - Add permissions to dfs_fls[] array in a separate patch (Patch 5)
   and README file in the following patch (Patch 6)
 - Remove CONFIG_X86_HT ifdefs and factor out number of nodes calculation
 - Provide accessor function in amd.c

Aravind Gopalakrishnan (9):
  edac, mce_amd_inj: Use MCE_INJECT_GET for bank
  edac, mce_amd_inj: Rework sanity check for inj_bank_set
  edac, mce_amd_inj: Modify flags attrigute to use string arguments
  edac, mce_amd_inj: Add capability to trigger apic interrupts
  edac, mce_amd_inj: Add individual permissions field for dfs_node
  edac, mce_amd_inj: Add README file
  x86, amd: Factor out number of nodes calculation
  x86, amd: Provide accessor for number of nodes
  edac, mce_amd_inj: Inject errors on NBC for bank 4 errors

 arch/x86/include/asm/processor.h |   1 +
 arch/x86/kernel/cpu/amd.c        |  42 ++++--
 drivers/edac/mce_amd_inj.c       | 270 ++++++++++++++++++++++++++++++++++-----
 3 files changed, 275 insertions(+), 38 deletions(-)

-- 
2.4.0