On 06/12/2014 02:39 PM, Anshuman Khandual wrote:
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
On 07/18/2014 04:53 AM, Sam Bobroff wrote:
On 17/07/14 21:14, Michael Neuling wrote:
On Jul 17, 2014 9:11 PM, Benjamin Herrenschmidt
b...@kernel.crashing.org mailto:b...@kernel.crashing.org wrote:
Outstanding Issues
==
(1) Running DSCR register value inside a transaction
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
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
| specific register set REGSET_MISC
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 powerpc specific register
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
platform. Please find
On 11/14/2014 03:30 PM, Denis Kirjanov wrote:
On 11/13/14, Anshuman Khandual khand...@linux.vnet.ibm.com 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-PTRACE_SETREGSET interface
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 powerpc specific register
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 this series
On 11/22/2014 05:13 AM, Andrew Morton wrote:
On Tue, 11 Nov 2014 10:56:30 +0530 Anshuman Khandual
khand...@linux.vnet.ibm.com wrote:
This patch adds four new core note sections for PowerPC transactional
memory and one core note section for general miscellaneous debug registers
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 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 khand
-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
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
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 khand...@linux.vnet.ibm.com
---
arch
then compares the received values
against the expected values to verify whether it passed the test
or not.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/tm/Makefile| 2 +-
tools/testing/selftests/powerpc/tm/tm-ptrace.c | 529
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 khand...@linux.vnet.ibm.com
---
arch/powerpc
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/process.c | 20
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c
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 khand
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 ELF core note NT_PPC_MISC
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
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 khand...@linux.vnet.ibm.com
---
arch/powerpc
then compares the received values
against the expected values to verify whether it has passed the
given test or not.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/tm/Makefile| 2 +-
tools/testing/selftests/powerpc/tm/tm-ptrace.c | 542
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c
Morton a...@linux-foundation.org
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
include/uapi/linux/elf.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index ea9bf25..2260fc0 100644
--- a/include/uapi/linux/elf.h
+++ b
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 khand
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 khand...@linux.vnet.ibm.com
---
arch
-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 123
2 files changed, 124 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/elf.h
b/arch/powerpc/include/uapi/asm/elf.h
index
On 11/25/2014 10:36 PM, Shuah Khan wrote:
On 11/25/2014 01:05 AM, Anshuman Khandual wrote:
This patch adds one more test case called 'tm-ptrace' targeting TM
related ptrace interface. This test creates one child process to
run some basic TM transactions and the parent process attaches
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c
This patch includes all the TM test binaries into the .gitignore
file listing in the same directory. This will make sure that GIT
ignores all of them while displaying status.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/tm/.gitignore | 2 ++
1
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 khand
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 khand...@linux.vnet.ibm.com
---
arch
-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 131
2 files changed, 132 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/elf.h
b/arch/powerpc/include/uapi/asm/elf.h
index
This patch includes all of the powerpc test binaries into the
.gitignore file listing in their respective directories. This
will make sure that GIT ignores all of these test binaries while
displaying status.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
.../testing/selftests
Morton a...@linux-foundation.org
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
include/uapi/linux/elf.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index ea9bf25..2260fc0 100644
--- a/include/uapi/linux/elf.h
+++ b
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 khand...@linux.vnet.ibm.com
---
arch/powerpc
then compares the received values
against the expected values to verify whether it has passed the
given test or not.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/tm/Makefile| 2 +-
tools/testing/selftests/powerpc/tm/tm-ptrace.c | 542
(PASSED)
TM RN PPR: 4 (PASSED)
success: tm_ptrace
Anshuman Khandual (9):
elf: Add new powerpc specifc core note sections
powerpc, process: Add the function flush_tmregs_to_thread
powerpc, ptrace: Enable fpr_(get/set) for transactional memory
powerpc, ptrace: Enable vr_(get/set
On 12/02/2014 11:53 PM, Shuah Khan wrote:
On 12/02/2014 12:56 AM, Anshuman Khandual wrote:
This patch includes all of the powerpc test binaries into the
.gitignore file listing in their respective directories. This
will make sure that GIT ignores all of these test binaries while
On 12/03/2014 10:52 AM, Michael Ellerman wrote:
On Tue, 2014-02-12 at 07:56:45 UTC, Anshuman Khandual wrote:
This patch adds four new ELF core note sections for powerpc
transactional memory and one new ELF core note section for
powerpc general miscellaneous debug registers. These addition
On 12/03/2014 12:18 PM, Anshuman Khandual wrote:
On 12/03/2014 10:52 AM, Michael Ellerman wrote:
On Tue, 2014-02-12 at 07:56:45 UTC, Anshuman Khandual wrote:
This patch adds four new ELF core note sections for powerpc
transactional memory and one new ELF core note section for
powerpc general
On 12/20/2014 12:58 AM, Edjunior Barbosa Machado wrote:
On 12/08/2014 08:08 AM, Anshuman Khandual wrote:
On 12/03/2014 12:18 PM, Anshuman Khandual wrote:
On 12/03/2014 10:52 AM, Michael Ellerman wrote:
On Tue, 2014-02-12 at 07:56:45 UTC, Anshuman Khandual wrote:
This patch adds four new ELF
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
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
On 01/14/2015 07:45 AM, Michael Ellerman wrote:
On Tue, 2015-01-13 at 17:16 -0700, Shuah Khan wrote:
Please add a commit log.
What does it need to say?
On 01/13/2015 04:49 PM, Michael Ellerman wrote:
Signed-off-by: Michael Ellerman m...@ellerman.id.au
---
On 01/01/2015 01:38 PM, Anshuman Khandual wrote:
Also, we've noticed that the 'misc' regset contains registers from
different ISA
versions (dscr and ppr appear in ISA 2.05, tar is from 2.07). I'm not sure
if
there is a way to detect presence/validity of such registers, but perhaps
Morton a...@linux-foundation.org
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
include/uapi/linux/elf.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 71e1d0e..0fd9983 100644
--- a/include/uapi/linux/elf.h
+++ b
then compares the received values
against the expected values to verify whether it has passed the
given test or not.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/tm/Makefile| 2 +-
tools/testing/selftests/powerpc/tm/tm-ptrace.c | 542
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 khand
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 2 +
arch/powerpc/kernel/ptrace.c
-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
arch/powerpc/include/uapi/asm/elf.h | 1 +
arch/powerpc/kernel/ptrace.c| 133
2 files changed, 134 insertions(+)
diff --git a/arch/powerpc/include/uapi/asm/elf.h
b/arch/powerpc/include/uapi/asm/elf.h
index
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 khand...@linux.vnet.ibm.com
---
arch
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 khand...@linux.vnet.ibm.com
---
arch/powerpc
(PASSED)
TM RN FPR[29]: 2 (PASSED)
TM RN FPR[30]: 1 (PASSED)
TM 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 (8):
elf: Add new powerpc specifc core note
This patch includes all of the powerpc test binaries into the
.gitignore file listing in their respective directories. This
will make sure that GIT ignores all of these test binaries while
displaying status.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
NOTE: As Michael had
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/asm-offsets.c | 2
. 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
-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools/testing/selftests/powerpc/dscr/Makefile | 17 +++
tools/testing/selftests/powerpc/dscr/dscr.h| 120
.../selftests/powerpc/dscr/dscr_default_test.c
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.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/dscr/Makefile | 2 +-
.../powerpc
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.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/dscr/Makefile | 3 +-
.../selftests/powerpc
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/processor.h | 9 +
arch/powerpc/kernel/sysfs.c | 38
.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
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
.
efcac658: powerpc: Per process DSCR + some fixes (try#4)
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/process.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index b4cc7be..fe3f682
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.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests
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.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests
the system wide DSCR default value through
+ * sysfs interface which should then update all the CPU specific
+ * DSCR default values which must also be then visible to threads
+ * executing on individual CPUs on the system.
+ *
+ * Copyright (C) 2015 Anshuman Khandual khand...@linux.vnet.ibm.com, IBM
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.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing
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
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 for
On 04/01/2015 08:47 AM, Joel Stanley wrote:
Hi Andrew,
On Wed, Apr 1, 2015 at 9:09 AM, Andrew Morton a...@linux-foundation.org
wrote:
On Mon, 30 Mar 2015 12:45:32 +1030 Joel Stanley j...@jms.id.au wrote:
The kernel has orderly_poweroff which allows the kernel to initiate a
graceful
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 workload' session). Perf report
still displays the generic event based relative symbol classification
as usual. This
On 03/19/2015 04:20 AM, Michael Neuling wrote:
On Thu, 2015-03-19 at 09:45 +1100, Michael Neuling wrote:
On Wed, 2015-03-18 at 13:53 +0100, Ulrich Weigand wrote:
Michael Neuling mi...@neuling.org wrote on 23.02.2015 05:51:50:
Sorry for the slow response.
Same here :-(
I'm going to break
On 04/20/2015 05:57 PM, Ulrich Weigand wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com 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 the checkpointed *VSX
On 04/21/2015 08:11 PM, Ulrich Weigand wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com 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 requests when
On 04/13/2015 02:18 PM, Anshuman Khandual wrote:
On 04/10/2015 04:03 PM, Ulrich Weigand wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com 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 then how
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
test bucket which can
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 do notice (a
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 shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
Signed-off-by: Anton Blanchard
.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
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
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/asm-offsets.c | 2
. 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 shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand
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 shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
Signed-off-by: Anton Blanchard
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/include/asm/processor.h | 9 +
arch/powerpc/kernel/sysfs.c | 38
shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
Signed-off-by: Anton Blanchard an...@samba.org
---
tools/testing/selftests/powerpc/Makefile | 2 +-
tools/testing/selftests/powerpc/dscr/Makefile | 17 +++
tools/testing/selftests/powerpc/dscr
)
-
- 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
.
efcac658: powerpc: Per process DSCR + some fixes (try#4)
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
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
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 shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand
...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
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
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 shua...@osg.samsung.com
Signed-off-by: Anshuman Khandual khand
This patch adds .gitignore for all the newly added DSCR tests.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/dscr/.gitignore | 7 +++
1 file changed, 7 insertions(+)
create mode 100644 tools/testing/selftests/powerpc/dscr/.gitignore
diff
On 04/10/2015 04:03 PM, Ulrich Weigand wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com 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: https://lkml.org
On 04/09/2015 04:41 AM, Michael Neuling wrote:
On Wed, 2015-04-08 at 19:50 +0200, Ulrich Weigand wrote:
Anshuman Khandual khand...@linux.vnet.ibm.com 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
(which contain the TM bits) when ptracing
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's sysfs interface must
be visible
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 reading DSCR either through
the get, set and active functions for this new
register set added.
Signed-off-by: Anshuman Khandual khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/ptrace.c | 126 +++
1 file changed, 126 insertions(+)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch
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 khand...@linux.vnet.ibm.com
---
arch/powerpc/kernel/ptrace.c | 64 +++-
1 file
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 khand...@linux.vnet.ibm.com
---
tools/testing/selftests/powerpc/reg.h | 21
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 khand...@linux.vnet.ibm.com
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