Re: [PATCH V2 00/12] POWER DSCR fixes, improvements, docs and tests

2015-02-04 Thread Anshuman Khandual
On 01/13/2015 03:52 PM, Anshuman Khandual wrote:
   This patch series has patches for POWER DSCR fixes, improvements,
 in code documentaion, kernel support user documentation and selftest based
 test cases. It has got five test cases which are derived from Anton's DSCR
 test bucket which can be listed as follows.
 
 (1) http://ozlabs.org/~anton/junkcode/dscr_default_test.c
 (2) http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
 (3) http://ozlabs.org/~anton/junkcode/dscr_inherit_exec_test.c
 (4) http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
 (5) http://ozlabs.org/~anton/junkcode/user_dscr_test.c
 
 So the derivied test cases have Anton's copyright along with mine but the
 commit message as of now has only my signed-off-by statement. As Anton
 mentioned before he would put his signed-off-by after reviewing these
 modified test cases.
 
 NOTE1: Anton's original inherit exec test expected the child to have system
 default DSCR value instead of the inherited DSCR value from it's parent.
 But looks like thats not the case when we execute the test, it always
 inherits it's parent's DSCR value over the exec call as well. So I have
 changed the test program assuming its correct to have the inherited DSCR
 value in the fork/execed child program. Please let me know if thats not
 correct and I am missing something there.
 
 NOTE2: The selftests/powerpc/.gitignore will be added and will get updated
 through a different patch series related to ptrace instead of this one.
 
 Changes in V2:
 -
 - Updated the thread struct DSCR value inside mtspr facility exception path
 - Modified the in code documentation to follow the kernel-doc format
 - Added seven selftest based DSCR related test cases under powerpc

Hey Michael,

Did you get a chance to look into these patches ? After going through the
discussions regarding all the selftest test cases, seems like they are good
to go unless you disagree.

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Re: [PATCH V2 00/12] POWER DSCR fixes, improvements, docs and tests

2015-02-04 Thread Anshuman Khandual
On 02/04/2015 01:51 PM, Anshuman Khandual wrote:
 On 01/13/2015 03:52 PM, Anshuman Khandual wrote:
 This patch series has patches for POWER DSCR fixes, improvements,
  in code documentaion, kernel support user documentation and selftest based
  test cases. It has got five test cases which are derived from Anton's DSCR
  test bucket which can be listed as follows.
  
  (1) http://ozlabs.org/~anton/junkcode/dscr_default_test.c
  (2) http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
  (3) http://ozlabs.org/~anton/junkcode/dscr_inherit_exec_test.c
  (4) http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
  (5) http://ozlabs.org/~anton/junkcode/user_dscr_test.c
  
  So the derivied test cases have Anton's copyright along with mine but the
  commit message as of now has only my signed-off-by statement. As Anton
  mentioned before he would put his signed-off-by after reviewing these
  modified test cases.
  
  NOTE1: Anton's original inherit exec test expected the child to have system
  default DSCR value instead of the inherited DSCR value from it's parent.
  But looks like thats not the case when we execute the test, it always
  inherits it's parent's DSCR value over the exec call as well. So I have
  changed the test program assuming its correct to have the inherited DSCR
  value in the fork/execed child program. Please let me know if thats not
  correct and I am missing something there.
  
  NOTE2: The selftests/powerpc/.gitignore will be added and will get updated
  through a different patch series related to ptrace instead of this one.
  
  Changes in V2:
  -
  - Updated the thread struct DSCR value inside mtspr facility exception path
  - Modified the in code documentation to follow the kernel-doc format
  - Added seven selftest based DSCR related test cases under powerpc
 Hey Michael,
 
 Did you get a chance to look into these patches ? After going through the
 discussions regarding all the selftest test cases, seems like they are good
 to go unless you disagree.

Hey Anton,

As discussed before (https://patchwork.ozlabs.org/patch/418583/), could you 
please
review the first five selftest test cases [patch 6, 7, 8, 9, 10] which are 
derived
from your DSCR test bucket and also consider acking them which will enable me 
to add
your Signed-off-by in the next version of the patch series. Thank you.

(1) http://ozlabs.org/~anton/junkcode/dscr_default_test.c
(2) http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
(3) http://ozlabs.org/~anton/junkcode/dscr_inherit_exec_test.c
(4) http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
(5) http://ozlabs.org/~anton/junkcode/user_dscr_test.c

Regards
Anshuman

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[PATCH V2 00/12] POWER DSCR fixes, improvements, docs and tests

2015-01-13 Thread Anshuman Khandual
This patch series has patches for POWER DSCR fixes, improvements,
in code documentaion, kernel support user documentation and selftest based
test cases. It has got five test cases which are derived from Anton's DSCR
test bucket which can be listed as follows.

(1) http://ozlabs.org/~anton/junkcode/dscr_default_test.c
(2) http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
(3) http://ozlabs.org/~anton/junkcode/dscr_inherit_exec_test.c
(4) http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
(5) http://ozlabs.org/~anton/junkcode/user_dscr_test.c

So the derivied test cases have Anton's copyright along with mine but the
commit message as of now has only my signed-off-by statement. As Anton
mentioned before he would put his signed-off-by after reviewing these
modified test cases.

NOTE1: Anton's original inherit exec test expected the child to have system
default DSCR value instead of the inherited DSCR value from it's parent.
But looks like thats not the case when we execute the test, it always
inherits it's parent's DSCR value over the exec call as well. So I have
changed the test program assuming its correct to have the inherited DSCR
value in the fork/execed child program. Please let me know if thats not
correct and I am missing something there.

NOTE2: The selftests/powerpc/.gitignore will be added and will get updated
through a different patch series related to ptrace instead of this one.

Changes in V2:
-
- Updated the thread struct DSCR value inside mtspr facility exception path
- Modified the in code documentation to follow the kernel-doc format
- Added seven selftest based DSCR related test cases under powerpc

Original V1:

- Posted here at https://patchwork.ozlabs.org/patch/418583/

Anshuman Khandual (12):
  powerpc: Fix handling of DSCR related facility unavailable exception
  powerpc, process: Remove the unused extern dscr_default
  powerpc, offset: Change PACA_DSCR to PACA_DSCR_DEFAULT
  powerpc, dscr: Added some in-code documentation
  documentation, powerpc: Add documentation for DSCR support
  selftests, powerpc: Add test for system wide DSCR default
  selftests, powerpc: Add test for explicitly changing DSCR value
  selftests, powerpc: Add test for DSCR SPR numbers
  selftests, powerpc: Add test for DSCR value inheritence across fork
  selftests, powerpc: Add test for DSCR inheritence across fork  exec
  selftests, powerpc: Add test for all DSCR sysfs interfaces
  selftests, powerpc: Add thread based stress test for DSCR sysfs interfaces

 Documentation/powerpc/00-INDEX |   2 +
 Documentation/powerpc/dscr.txt |  83 ++
 arch/powerpc/include/asm/processor.h   |   9 ++
 arch/powerpc/kernel/asm-offsets.c  |   2 +-
 arch/powerpc/kernel/entry_64.S |   2 +-
 arch/powerpc/kernel/process.c  |   2 -
 arch/powerpc/kernel/sysfs.c|  38 +++
 arch/powerpc/kernel/tm.S   |   4 +-
 arch/powerpc/kernel/traps.c|  45 +++-
 arch/powerpc/kvm/book3s_hv_rmhandlers.S|   2 +-
 tools/testing/selftests/powerpc/Makefile   |   2 +-
 tools/testing/selftests/powerpc/dscr/Makefile  |  19 
 tools/testing/selftests/powerpc/dscr/dscr.h| 120 
 .../selftests/powerpc/dscr/dscr_default_test.c | 121 +
 .../selftests/powerpc/dscr/dscr_explicit_test.c|  72 
 .../powerpc/dscr/dscr_inherit_exec_test.c  | 118 
 .../selftests/powerpc/dscr/dscr_inherit_test.c |  96 
 .../selftests/powerpc/dscr/dscr_sysfs_test.c   |  89 +++
 .../powerpc/dscr/dscr_sysfs_thread_test.c  | 114 +++
 .../selftests/powerpc/dscr/dscr_user_test.c|  62 +++
 20 files changed, 989 insertions(+), 13 deletions(-)
 create mode 100644 Documentation/powerpc/dscr.txt
 create mode 100644 tools/testing/selftests/powerpc/dscr/Makefile
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr.h
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr_default_test.c
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr_explicit_test.c
 create mode 100644 
tools/testing/selftests/powerpc/dscr/dscr_inherit_exec_test.c
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr_inherit_test.c
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr_sysfs_test.c
 create mode 100644 
tools/testing/selftests/powerpc/dscr/dscr_sysfs_thread_test.c
 create mode 100644 tools/testing/selftests/powerpc/dscr/dscr_user_test.c

-- 
1.9.3

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