On 03/30/2015 07:45 AM, Joel Stanley wrote:
> The kernel has orderly_poweroff which allows the kernel to initiate a
> graceful shutdown of userspace, by running /sbin/poweroff. This adds
> orderly_reboot that will cause userspace to shut itself down by calling
> /sbin/reboot.
>
> This will be used
On 04/01/2015 08:47 AM, Joel Stanley wrote:
> Hi Andrew,
>
> On Wed, Apr 1, 2015 at 9:09 AM, Andrew Morton
> wrote:
>> > On Mon, 30 Mar 2015 12:45:32 +1030 Joel Stanley wrote:
>> >
>>> >> The kernel has orderly_poweroff which allows the kernel to initiate a
>>> >> graceful shutdown of userspace
Hello,
perf report is not showing up the branch stack sample results in the
from_symbol ---> to_symbol format even if the perf.data file has got
the samples (through 'perf record -b ' session). Perf report
still displays the generic event based relative symbol classification
as usual. This problem
On 04/09/2015 04:01 PM, Anshuman Khandual wrote:
> On 03/27/2015 05:31 PM, Michael Ellerman wrote:
>> On Tue, 2015-13-01 at 10:22:34 UTC, Anshuman Khandual wrote:
>>> This patch adds a test case for the system wide DSCR default
>>> value, which when changed through it&#x
On 03/27/2015 05:31 PM, Michael Ellerman wrote:
> On Tue, 2015-13-01 at 10:22:34 UTC, Anshuman Khandual wrote:
>> This patch adds a test case for the system wide DSCR default
>> value, which when changed through it's sysfs interface must
>> be visible to all threads readi
On 04/09/2015 04:41 AM, Michael Neuling wrote:
> On Wed, 2015-04-08 at 19:50 +0200, Ulrich Weigand wrote:
>> Anshuman Khandual wrote on 23.03.2015
>> 11:34:30:
>>
>>>> With that in mind, do we have a way to set the top 32bits of the MSR
>>>> (wh
On 04/10/2015 04:03 PM, Ulrich Weigand wrote:
> Anshuman Khandual wrote on 10.04.2015
> 11:10:35:
>
>> I had posted a newer version [V7] of this patch series couple of months
> back
>> which got ignored while the discussion continued in this version.
>>
>> V7
On 04/13/2015 02:18 PM, Anshuman Khandual wrote:
> On 04/10/2015 04:03 PM, Ulrich Weigand wrote:
>> Anshuman Khandual wrote on 10.04.2015
>> 11:10:35:
>
> I believed it stores the check pointed MSR value which was in the register
> before the transaction started. But
thread_struct structure. This patch does that change.
Signed-off-by: Anshuman Khandual
---
This issue came up in the discussion regarding ptrace interface for TM
specific registers https://lkml.org/lkml/2015/4/20/100, so just wanted
to give this a try. The basic TM tests still pass after this change
On 04/20/2015 05:57 PM, Ulrich Weigand wrote:
> Anshuman Khandual wrote on 13.04.2015
> 10:48:57:
>> On 04/10/2015 04:03 PM, Ulrich Weigand wrote:
>>> - You provide checkpointed FPR and VMX registers, but there doesn't
> seem
>>> to be any way to get at
: Anshuman Khandual
---
arch/powerpc/mm/hash_utils_64.c: In function ‘flush_hash_hugepage’:
arch/powerpc/mm/hash_utils_64.c:1381:1: error: label at end of compound
statement
tm_abort:
^
make[1]: *** [arch/powerpc/mm/hash_utils_64.o] Error 1
make: *** [arch/powerpc/mm] Error 2
arch/powerpc/mm
On 04/21/2015 08:11 PM, Ulrich Weigand wrote:
> Anshuman Khandual wrote on 21.04.2015
> 06:55:24:
>
>> Changed ELF core note sections
>> --
>> These core note sections need to be changed to accommodate the in
>> transaction ptrace
On 04/20/2015 01:45 PM, Anshuman Khandual wrote:
> Currently tm_orig_msr is getting used during process context switch only.
> Then there is ckpt_regs which saves the checkpointed userspace context
> The MSR slot contained in ckpt_regs structure can be used during process
> context sw
On 04/10/2015 01:59 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
>
On 05/18/2015 10:39 AM, Anton Blanchard wrote:
> Hi Anshuman,
>
> Thanks for getting these testcases into the kernel.
>
>> This patch adds a test to verify that the changed DSCR value inside
>> any process would be inherited to it's child process across the fork
>> system call.
>
> One issue I d
.
efcac658: powerpc: Per process DSCR + some fixes (try#4)
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/process.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index febb50d..8005e18 100644
--- a/arch/powerpc/kernel
This patch adds .gitignore for all the newly added DSCR tests.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/dscr/.gitignore | 7 +++
1 file changed, 7 insertions(+)
create mode 100644 tools/testing/selftests/powerpc/dscr/.gitignore
diff --git a/tools/testing
This patch adds some in-code documentation to the DSCR related
code to make it more readable without having any functional
change to it.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/asm/processor.h | 9 +
arch/powerpc/kernel/sysfs.c | 38
.
Signed-off-by: Anshuman Khandual
---
Documentation/powerpc/00-INDEX | 2 +
Documentation/powerpc/dscr.txt | 83 ++
2 files changed, 85 insertions(+)
create mode 100644 Documentation/powerpc/dscr.txt
diff --git a/Documentation/powerpc/00-INDEX b
://lkml.org/lkml/2015/1/13/148)
-
- 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.ozla
This patch adds a test which modifies the DSCR using mtspr instruction
and verifies the change using mfspr instruction. It uses both the
privilege state SPR as well as the problem state SPR for the purpose.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
This patch adds a test case to verify that the changed DSCR value
inside any process would be inherited to it's child across the fork
and exec system call.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/dscr/Mak
This patch adds a test to verify that the changed DSCR value inside
any process would be inherited to it's child process across the fork
system call.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/dscr/Mak
. In case of mfspr instruction,
just emulate the instruction. In case of mtspr instruction, set the
thread based dscr_inherit bit and also enable the facility through FSCR.
All user SPR based mfspr instruction will be emulated till one user SPR
based mtspr has been executed.
Signed-off-by: Anshuman
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/dscr/Makefile | 2 +-
.../powerpc/dscr/dscr_sysfs_thread_test.c | 123 +
2 files changed, 124 insertions(+), 1 deletion(-)
create mode 100644
tools/testing/selftests/powerpc/dscr
This patch adds a test which verifies that the DSCR privilege and
problem state SPR read & write accesses while making sure that the
results are always the same irrespective of which SPR number is
being used.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanc
PACA_DSCR offset macro tracks dscr_default element in the paca
structure. Better change the name of this macro to match that
of the data element it tracks. Makes the code more readable.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/asm-offsets.c | 2 +-
arch/powerpc/kernel
Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools/testing/selftests/powerpc/dscr/Makefile | 17 +++
tools/testing/selftests/powerpc/dscr/dscr.h| 120 +++
.../selftests/powerpc
This test continuously updates the system wide DSCR default value
in the sysfs interface and makes sure that the same is reflected
across all the sysfs interfaces for each individual CPUs present
on the system.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests
sets, EBB related register set etc. Addition of
these new ELF core note sections extends the existing ELF
ABI on powerpc arch without affecting it in any manner.
Signed-off-by: Anshuman Khandual
---
include/uapi/linux/elf.h | 12
1 file changed, 12 insertions(+)
diff --git a
transaction is active. This patch makes these
functions adapt to situations when the transaction is active.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 64
1 file changed, 64 insertions(+)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch
From: Anshuman Khandual
This patch series adds twelve new ELF core note sections which can
be used with existing ptrace request PTRACE_GETREGSET-SETREGSET for accessing
various transactional memory and other miscellaneous debug register sets on
powerpc platform.
Previous versions
is active. This patch makes these
functions adapt to situations when the transaction is active.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 90 ++--
1 file changed, 87 insertions(+), 3 deletions(-)
diff --git a/arch/powerpc/kernel
This patch adds ptrace interface test for TM SPR registers. This
also adds ptrace interface based helper functions related to TM
SPR registers access.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 2 +-
.../selftests/powerpc/ptrace/ptrace-tm-spr.c
This patch adds ptrace interface test for GPR/FPR registers.
This adds ptrace interface based helper functions related to
GPR/FPR access and some assembly helper functions related to
GPR/FPR registers.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 5
. It also implements the get, set and active functions
for this new register sets added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c| 147
2 files changed, 149 insertions(+)
diff --git a
This patch moves 'reg.h' file from pmu 'ebb' sub directory
to the powerpc root directory to make all the register
definitions and instructions available for tests present
in other subsystems.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/pmu/ebb/ebb.c
transaction is
active. This patch makes these functions adapt to situations
when the transaction is active.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 93 ++--
1 file changed, 89 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel
This patch adds ptrace interface test for TAR, PPR, DSCR
registers. This also adds ptrace interface based helper
functions related to TAR, PPR, DSCR register access.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 3 +-
.../testing/selftests/powerpc
This patch adds ptrace interface test for VSX, VMX registers
inside suspended TM context.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 3 +-
.../selftests/powerpc/ptrace/ptrace-tm-spd-vsx.c | 211 +
2 files changed, 213
This patch adds ptrace interface test for EBB specific
registers. This also adds some generic ptrace interface
based helper functions to be used by other patches later
on in the series.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools
This patch adds ptrace interface test for TAR, PPR, DSCR
registers inside suspended TM context.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 2 +-
.../selftests/powerpc/ptrace/ptrace-tm-spd-tar.c | 184 +
2 files changed, 185
This patch adds ptrace interface test for VSX, VMX registers
inside TM context. This also adds ptrace interface based helper
functions related to chckpointed VSX, VMX registers access.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 3
This patch adds a .gitignore file for all the executables in
the ptrace test directory thus making invisible with git status
query.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/.gitignore | 11 +++
1 file changed, 11 insertions(+)
create mode 100644 tools
and
REGSET_TM_CDSCR in powerpc corresponding to the ELF core note
sections added. It implements the get, set and active functions
for all these new register sets added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 178 +++
1 file
This patch creates a function flush_tmregs_to_thread which
will then be used by subsequent patches in this series. The
function checks for self tracing ptrace interface attempts
while in the TM context and logs appropriate warning message.
Signed-off-by: Anshuman Khandual
---
arch/powerpc
This patch adds SPR number for TAR, PPR, DSCR special
purpose registers. It also adds TM, VSX, VMX related
instructions which will then be used by patches later
in the series.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/reg.h | 21 +
1 file changed
the get, set and active functions for this new
register set added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 222 +++
1 file changed, 222 insertions(+)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index
This patch adds ptrace interface test for VSX, VMX registers.
This also adds ptrace interface based helper functions related
to VSX, VMX registers access. This also adds some assembly
helper functions related to VSX and VMX registers.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests
This patch adds ptrace interface test for TAR, PPR, DSCR
registers inside TM context. This also adds ptrace
interface based helper functions related to checkpointed
TAR, PPR, DSCR register access.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 2
the get, set and active functions for this new
register set added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 158
2 files changed, 159 insertions(+)
diff --git a/arch/powerpc/include
This patch splits gpr32_get, gpr32_set functions to accommodate
in transaction ptrace requests implemented in patches later in
the series.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 64 +++-
1 file changed, 51 insertions(+), 13
the get, set and active functions for this new
register set added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 129
2 files changed, 130 insertions(+)
diff --git a/arch/powerpc/include
, set and active functions for
this new register set added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 143 +++-
2 files changed, 143 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc
the get, set and active functions for this new
register set added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 126 +++
1 file changed, 126 insertions(+)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index
This patch adds ptrace interface test for GPR/FPR registers
inside TM context. This adds ptrace interface based helper
functions related to checkpointed GPR/FPR access.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 3 +-
.../selftests/powerpc/ptrace
This patch adds ptrace interface test for GPR/FPR registers
inside suspended TM context.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/ptrace/Makefile| 2 +-
.../selftests/powerpc/ptrace/ptrace-tm-spd-gpr.c | 318 +
2 files changed, 319
corresponding to the ELF core
note sections added in this regad. It implements the get, set and
active functions for all these new register sets added.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 117 +++
1 file changed, 117
.
efcac658: powerpc: Per process DSCR + some fixes (try#4)
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/process.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index febb50d..8005e18 100644
--- a/arch/powerpc/kernel
. In case of mfspr instruction,
just emulate the instruction. In case of mtspr instruction, set the
thread based dscr_inherit bit and also enable the facility through FSCR.
All user SPR based mfspr instruction will be emulated till one user SPR
based mtspr has been executed.
Signed-off-by: Anshuman
This test continuously updates the system wide DSCR default value
in the sysfs interface and makes sure that the same is reflected
across all the sysfs interfaces for each individual CPUs present
on the system.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests
This patch adds some in-code documentation to the DSCR related
code to make it more readable without having any functional
change to it.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/asm/processor.h | 9 +
arch/powerpc/kernel/sysfs.c | 38
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/dscr/Makefile | 2 +-
.../powerpc/dscr/dscr_sysfs_thread_test.c | 123 +
2 files changed, 124 insertions(+), 1 deletion(-)
create mode 100644
tools/testing/selftests/powerpc/dscr
he 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 Khan
PACA_DSCR offset macro tracks dscr_default element in the paca
structure. Better change the name of this macro to match that
of the data element it tracks. Makes the code more readable.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/asm-offsets.c | 2 +-
arch/powerpc/kernel
Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools/testing/selftests/powerpc/dscr/Makefile | 17 +++
tools/testing/selftests/powerpc/dscr/dscr.h| 128 +
.../selftests/po
This patch adds .gitignore for all the newly added DSCR tests.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/dscr/.gitignore | 7 +++
1 file changed, 7 insertions(+)
create mode 100644 tools/testing/selftests/powerpc/dscr/.gitignore
diff --git a/tools/testing
This patch adds a test to verify that the changed DSCR value inside
any process would be inherited to it's child process across the fork
system call.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/dscr/Mak
This patch adds a test which verifies that the DSCR privilege and
problem state SPR read & write accesses while making sure that the
results are always the same irrespective of which SPR number is
being used.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanc
.
Signed-off-by: Anshuman Khandual
---
Documentation/powerpc/00-INDEX | 2 +
Documentation/powerpc/dscr.txt | 83 ++
2 files changed, 85 insertions(+)
create mode 100644 Documentation/powerpc/dscr.txt
diff --git a/Documentation/powerpc/00-INDEX b
This patch adds a test which modifies the DSCR using mtspr instruction
and verifies the change using mfspr instruction. It uses both the
privilege state SPR as well as the problem state SPR for the purpose.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
This patch adds a test case to verify that the changed DSCR value
inside any process would be inherited to it's child across the fork
and exec system call.
Acked-by: Shuah Khan
Signed-off-by: Anshuman Khandual
Signed-off-by: Anton Blanchard
---
tools/testing/selftests/powerpc/dscr/Mak
On 05/21/2015 12:13 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
>
On 05/19/2015 08:37 PM, Anshuman Khandual wrote:
> From: Anshuman Khandual
>
> This patch series adds twelve new ELF core note sections which can
> be used with existing ptrace request PTRACE_GETREGSET-SETREGSET for accessing
> various transactional memory and other misc
On 05/21/2015 12:13 PM, Anshuman Khandual wrote:
> This patch adds a test to update the system wide DSCR value repeatedly
> and then verifies that any thread on any given CPU on the system must
> be able to see the same DSCR value whether its is being read through
> the problem state
On 05/23/2014 08:45 PM, Anshuman Khandual wrote:
> This patch series adds five new ELF core note sections which can be
> used with existing ptrace request PTRACE_GETREGSET/SETREGSET for accessing
> various transactional memory and miscellaneous register sets on PowerPC
> plat
system explicitly.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/asm/opal.h| 45 +-
.../include/uapi/asm/opal_platform_events.h| 90 +++
arch/powerpc/platforms/powernv/Makefile| 2 +-
.../platforms/powernv/opal-platform-events.c | 737
system explicitly.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/asm/opal.h| 45 +-
.../include/uapi/asm/opal_platform_events.h| 90 +++
arch/powerpc/platforms/powernv/Makefile| 2 +-
.../platforms/powernv/opal-platform-events.c | 737
system explicitly.
Reviewed-by: Neelesh Gupta
Signed-off-by: Anshuman Khandual
---
Changes in V2:
- Changed the function fetch_dpo_timeout
- Export opal_platform_events.h for user space consumption
arch/powerpc/include/asm/opal.h| 45 +-
arch/powerpc/include/uapi/asm/Kbuild
On 07/24/2014 12:22 PM, Sam Bobroff wrote:
>> Outstanding Issues
>> ==
>> (1) Running DSCR register value inside a transaction does not seem to be
>> saved
>> at thread.dscr when the process stops for ptrace examination.
>
> Since this is fixed by 96d016108640bc2b7fb0ee800737f
On 08/28/2014 03:05 AM, Sukadev Bhattiprolu wrote:
>
> Anshuman Khandual [khand...@linux.vnet.ibm.com] wrote:
> | This patch enables get and set of miscellaneous registers through ptrace
> | PTRACE_GETREGSET/PTRACE_SETREGSET interface by implementing new powerpc
> | specif
On 08/28/2014 03:05 AM, Sukadev Bhattiprolu wrote:
> Anshuman Khandual [khand...@linux.vnet.ibm.com] wrote:
> | This patch enables get and set of transactional memory related register
> | sets through PTRACE_GETREGSET/PTRACE_SETREGSET interface by implementing
> | four new powe
function
- Some minor code cleanup
- Added more in-code documentation
- Changed the commit message
Changes in V2: (http://patchwork.ozlabs.org/patch/373114/)
- Fixed the compilation problem in 32 bit archs
- Selective inclusion of plapr_set_ciabr for required platforms
- Cleaned up the white space i
this rtas based event, it will expose itself to a forced abrupt
shutdown initiated by the platform firmware. This patch fixes the situation.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/platforms/pseries/ras.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/platforms/pseries
On 10/09/2014 05:18 PM, Anshuman Khandual wrote:
> This patch enables support for hardware instruction breakpoints
> on POWER8 with the help of a new register CIABR (Completed
> Instruction Address Breakpoint Register). With this patch, single
> hardware instruction breakpoint can
PPR: 4 (PASSED)
success: tm_ptrace
Anshuman Khandual (8):
elf: Add new PowerPC specifc core note sections
powerpc, process: Add functions flush_tm_state, flush_tmregs_to_thread
powerpc, process: Merge functions __switch_to_tm and tm_reclaim_task
powerpc, ptrace: Enable fpr_(get
This patch creates a new function called flush_tm_state to flush
the existing transactional memory state from the thread. It also
creates a function called flush_tmregs_to_thread which will then
be used on subsequent patches in this series.
Signed-off-by: Anshuman Khandual
---
arch/powerpc
This patch adds four new core note sections for PowerPC transactional
memory and one core note section for general miscellaneous debug registers.
These addition of new elf core note sections extends the existing elf ABI
without affecting it in any manner.
Signed-off-by: Anshuman Khandual
This patch enables the fpr_get which gets the running value of all
the FPR registers and the fpr_set which sets the running value of
of all the FPR registers to accommodate in transaction ptrace
interface based requests.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 103
This patch enables the vr_get which gets the running value of all
the VMX registers and the vr_set which sets the running value of
of all the VMX registers to accommodate in transaction ptrace
interface based requests.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/ptrace.c | 94
core note types added previously in this regard.
(1) NT_PPC_TM_SPR
(2) NT_PPC_TM_CGPR
(3) NT_PPC_TM_CFPR
(4) NT_PPC_TM_CVMX
Signed-off-by: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c| 666
: Anshuman Khandual
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 102
2 files changed, 103 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/elf.h
b/arch/powerpc/include/uapi/asm/elf.h
index fdc8e2f..a41bd98 100644
compares the received values
against the expected values to verify whether it passed the test
or not.
Signed-off-by: Anshuman Khandual
---
tools/testing/selftests/powerpc/tm/Makefile| 2 +-
tools/testing/selftests/powerpc/tm/tm-ptrace.c | 529 +
2 files changed, 530
The function tm_reclaim_task is only called from the function
__switch_to_tm. This patch merges these two functions to make
it more readable without changing the functionality in any way.
Signed-off-by: Anshuman Khandual
---
arch/powerpc/kernel/process.c | 20
1 file
On 11/11/2014 10:56 AM, Anshuman Khandual wrote:
> This patch enables get and set of miscellaneous debug registers through
> ptrace PTRACE_GETREGSET-PTRACE_SETREGSET interface by implementing new
> powerpc specific register set REGSET_MISC support corresponding to the
> new E
On 11/14/2014 03:30 PM, Denis Kirjanov wrote:
> On 11/13/14, Anshuman Khandual wrote:
>> > On 11/11/2014 10:56 AM, Anshuman Khandual wrote:
>>> >> This patch enables get and set of miscellaneous debug registers through
>>> >> ptrace PTRACE_GETREGSET-PTRA
On 11/19/2014 02:48 AM, Sukadev Bhattiprolu wrote:
> Anshuman Khandual [khand...@linux.vnet.ibm.com] wrote:
> | This patch enables get and set of transactional memory related register
> | sets through PTRACE_GETREGSET-PTRACE_SETREGSET interface by implementing
> | four new powe
On 11/11/2014 10:56 AM, Anshuman Khandual wrote:
> This patch creates a new function called flush_tm_state to flush
> the existing transactional memory state from the thread. It also
> creates a function called flush_tmregs_to_thread which will then
> be used on subsequent patches in
On 11/22/2014 05:13 AM, Andrew Morton wrote:
> On Tue, 11 Nov 2014 10:56:30 +0530 Anshuman Khandual
> wrote:
>
>> This patch adds four new core note sections for PowerPC transactional
>> memory and one core note section for general miscellaneous debug registers.
>>
RN FPR[31]: 0 (PASSED)
Testing TM running MISC debug registers:
TM RN DSCR: 32 (PASSED)
TM RN TAR: 3c (PASSED)
TM RN PPR: 4 (PASSED)
success: tm_ptrace
Anshuman Khandual (7):
elf: Add new powerpc specifc core note sections
powerpc, process: Add the function flush_tmregs_to_thread
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