From: Anju
The enum definition assigns an 'id' to each register in power.
The order of these values in the enum definition are based on
the corresponding macros in arch/powerpc/include/uapi/asm/ptrace.h .
Signed-off-by: Anju T
---
arch/powerpc/include/uapi/asm/perf_r
From: Anju
The id values are mapped with the corresponding register names.
This names are displayed while using a perf report/perf script command.
Signed-off-by: Anju T
---
tools/perf/arch/powerpc/include/perf_regs.h | 117
1 file changed, 117 insertions
kernel uses the "PERF" register ids to find offset of the register in
'struct pt_regs'.
CONFIG_HAVE_PERF_REGS will enable sampling of the interrupted machine state.
Signed-off-by: Anju T
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 2 +
From: Anju T
This short patch series add the ability to sample the interrupted
machine state for each hardware sample
Anju (3):
perf/powerpc:add ability to sample intr machine state in power
tools/perf:Map the ID values with register names
perf/powerpc:add support for sampling intr
This short patch series add the ability to sample the interrupted
machine state for each hardware sample
Anju (3):
perf/powerpc:add ability to sample intr machine state in power
tools/perf:Map the ID values with register names
perf/powerpc:add support for sampling intr machine state
arch
The id values are mapped with the corresponding register names.
This names are displayed while using a perf report/perf script command.
Signed-off-by: Anju T
---
tools/perf/arch/powerpc/include/perf_regs.h | 118
1 file changed, 118 insertions(+)
create mode 100644
the "PERF" register ids to find offset of the register in
'struct pt_regs'.
CONFIG_HAVE_PERF_REGS will enable sampling of the interrupted machine state.
Signed-off-by: Anju T
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 1 +
arch/powerpc/p
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc.The order of these values in the enum definition are
based on the corresponding macros in
arch/powerpc/include/uapi/asm/ptrace.h .
Signed-off-by: Anju T
---
arch/powerpc/include/uapi/
Hi,
On Friday 20 May 2016 06:07 PM, Masami Hiramatsu wrote:
Hi Anju,
Please see my comments below,
On Thu, 19 May 2016 20:40:39 +0530
Anju T wrote:
ppc_get_optinsn_slot() and ppc_free_optinsn_slot() are
geared towards the allocation and freeing of memory from
the area reserved for detour
e only candidates for
optimization.
Kindly let me know your suggestions and comments.
Thanks
-Anju
Anju T (3):
arch/powerpc : Add detour buffer support for optprobes
arch/powerpc : optprobes for powerpc core
arch/powerpc : Enable optprobes support in powerpc
.../features/debug/opt
Signed-off-by: Anju T
---
Documentation/features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig| 1 +
arch/powerpc/kernel/Makefile| 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation
Instruction slot for detour buffer is allocated from
the reserved area. For the time being 64KB is reserved
in memory for this purpose. ppc_get_optinsn_slot() and
ppc_free_optinsn_slot() are geared towards the allocation and freeing
of memory from this area.
Signed-off-by: Anju T
---
arch
: Anju T
---
arch/powerpc/include/asm/kprobes.h | 25 +
arch/powerpc/kernel/optprobes_head.S | 104 +++
2 files changed, 129 insertions(+)
create mode 100644 arch/powerpc/kernel/optprobes_head.S
diff --git a/arch/powerpc/include/asm/kprobes.h
b/arch
Hi Masami,
Thank you for reviewing the patch.
On Wednesday 18 May 2016 08:43 PM, Masami Hiramatsu wrote:
On Wed, 18 May 2016 02:09:37 +0530
Anju T wrote:
Instruction slot for detour buffer is allocated from
the reserved area. For the time being 64KB is reserved
in memory for this purpose
slot for detour buffer is allocated from
the reserved area. For the time being 64KB is reserved
in memory for this purpose.
Signed-off-by: Anju T
---
arch/powerpc/include/asm/kprobes.h | 25
arch/powerpc/kernel/optprobes_head.S | 108 +++
2 files changed
ppc_get_optinsn_slot() and ppc_free_optinsn_slot() are
geared towards the allocation and freeing of memory from
the area reserved for detour buffer.
Signed-off-by: Anju T
---
arch/powerpc/kernel/optprobes.c | 480
1 file changed, 480 insertions
ressed.
Kindly let me know your suggestions and comments.
Thanks
-Anju
Anju T (3):
arch/powerpc : Add detour buffer support for optprobes
arch/powerpc : optprobes for powerpc core
arch/powerpc : Enable optprobes support in powerpc
.../features/debug/optprobes/arch-support.txt
Signed-off-by: Anju T
---
Documentation/features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig| 1 +
arch/powerpc/kernel/Makefile| 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc. The order of these values in the enum definition are
based on the corresponding macros in arch/powerpc/include/uapi/asm/ptrace.h.
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasa
enables
sampling of the interrupted machine state.
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasan
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 1 +
arch/powerpc/perf/perf_regs.c | 85 +++
3 files changed, 87 insertions
(/boot/vmlinux)
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasan
---
tools/perf/arch/powerpc/include/perf_regs.h | 65 +
tools/perf/config/Makefile | 5 +++
2 files changed, 70 insertions(+)
create mode 100644 tools/perf/arch/powerpc/include
/perf/arch/powerpc/include/perf_regs.h
- PERF_REGS_POWERPC_RESULT is removed.
Changes from V1:
- Solved the name missmatch issue in the from and signed-off field of the patch
series.
- Added necessary comments in the 3rd patch ie perf/powerpc ,as suggested by
Maddy.
Anju T (3):
perf/powerpc: a
From: Madhavan Srinivasan
Add sample_reg_mask array with pt_regs registers.
This is needed for printing supported regs ( -I? option).
Signed-off-by: Madhavan Srinivasan
---
tools/perf/arch/powerpc/util/Build | 1 +
tools/perf/arch/powerpc/util/perf_regs.c | 48 ++
Hi Denis,
On Monday 26 October 2015 06:47 PM, Denis Kirjanov wrote:
On 10/26/15, Anju T wrote:
This short patch series add the ability to sample the interrupted
machine state for each hardware sample
Hi,
how can we check your patch series without testing details?
I have mentioned about the
On Wednesday 20 January 2016 04:08 PM, Michael Ellerman wrote:
Hi Anju,
On Mon, 2016-01-11 at 15:58 +0530, Anju T wrote:
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc. The order of these values in the enum definition are
based
Hi mpe,
On Wednesday 20 January 2016 04:16 PM, Michael Ellerman wrote:
On Mon, 2016-01-11 at 15:58 +0530, Anju T wrote:
diff --git a/tools/perf/arch/powerpc/include/perf_regs.h
b/tools/perf/arch/powerpc/include/perf_regs.h
new file mode 100644
index 000..93080f5
--- /dev/null
+++ b/tools
On Saturday 20 February 2016 10:32 AM, Anju T wrote:
This short patch series adds the ability to sample the interrupted
machine state for each hardware sample.
To test this patchset,
Eg:
$ perf record -I? # list supported registers
output:
available registers: r0 r1 r2 r3 r4 r5 r6 r7 r8
Hi Denis,
On Wednesday 04 November 2015 02:26 PM, Denis Kirjanov wrote:
On 11/3/15, Anju T wrote:
This short patch series adds the ability to sample the interrupted
machine state for each hardware sample.
To test this patchset,
Eg:
$perf record -I ls // record machine state at interrupt
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc.The order of these values in the enum definition are
based on the corresponding macros in
arch/powerpc/include/uapi/asm/ptrace.h .
Signed-off-by: Anju T
---
arch/powerpc/include/uapi/
enables
sampling of the interrupted machine state.
Signed-off-by: Anju T
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 2 +
arch/powerpc/perf/perf_regs.c | 92 +++
3 files changed, 95 insertions(+)
create mode 100644 arch/powerpc
/config/Makefile is moved to the patch tools/perf.
- The patchset is reordered.
- perf_regs_load() function is used for the dwarf unwind test.Since it is not
required here,
it is removed from tools/perf/arch/powerpc/include/perf_regs.h
- PERF_REGS_POWERPC_RESULT is removed.
Anju T (3
Map ID values with corresponding register names.These names are then
displayed when user issues perf record with the -I option
followed by perf report/script with -D option.
Signed-off-by: Anju T
---
tools/perf/arch/powerpc/include/perf_regs.h | 114
tools/perf
Hi Michael,
On Tuesday 03 November 2015 02:46 PM, Michael Ellerman wrote:
On Tue, 2015-11-03 at 11:40 +0530, Anju T wrote:
The perf infrastructure uses a bit mask to find out
valid registers to display. Define a register mask
for supported registers defined in asm/perf_regs.h.
The bit
Signed-off-by: Anju T
---
Documentation/features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig| 1 +
arch/powerpc/kernel/Makefile| 1 +
3 files changed, 3 insertions(+), 1 deletion(-)
diff --git a/Documentation
slot for detour buffer is allocated from
the reserved area. For the time being 64KB is reserved
in memory for this purpose.
Signed-off-by: Anju T
---
arch/powerpc/include/asm/kprobes.h | 27 +++
arch/powerpc/kernel/optprobes_head.S | 136 +++
2 files changed
Instructions which can be emulated are suppliants for
optimization. Before optimization ensure that the address range
between the detour buffer allocated and the instruction being probed
is within +/- 32MB.
Signed-off-by: Anju T
---
arch/powerpc/kernel/optprobes.c | 351
w your suggestions and comments.
Thanks
-Anju
Anju T (3):
arch/powerpc : Add detour buffer support for optprobes
arch/powerpc : optprobes for powerpc core
arch/powerpc : Enable optprobes support in powerpc
.../features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/K
Hi,
Any updates on this?
On Saturday 20 February 2016 10:32 AM, Anju T wrote:
This short patch series adds the ability to sample the interrupted
machine state for each hardware sample.
To test this patchset,
Eg:
$ perf record -I? # list supported registers
output:
available registers
ed here,
it is removed from tools/perf/arch/powerpc/include/perf_regs.h
- PERF_REGS_POWERPC_RESULT is removed.
Changes from V1:
- Solved the name missmatch issue in the from and signed-off field of the patch
series.
- Added necessary comments in the 3rd patch ie perf/powerpc ,as suggested by
M
enables
sampling of the interrupted machine state.
Signed-off-by: Anju T
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 1 +
arch/powerpc/perf/perf_regs.c | 91 +++
3 files changed, 93 insertions(+)
create mode 100644 arch/powerpc
From: Madhavan Srinivasan
Add sample_reg_mask array with pt_regs registers.
This is needed for printing supported regs ( -I? option).
Signed-off-by: Madhavan Srinivasan
---
tools/perf/arch/powerpc/util/Build | 1 +
tools/perf/arch/powerpc/util/perf_regs.c | 49 ++
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc. The order of these values in the enum definition are
based on the corresponding macros in arch/powerpc/include/uapi/asm/ptrace.h.
Signed-off-by: Anju T
---
arch/powerpc/include/uapi/
/vmlinux)
Signed-off-by: Anju T
---
tools/perf/arch/powerpc/include/perf_regs.h | 69 +
tools/perf/config/Makefile | 5 +++
2 files changed, 74 insertions(+)
create mode 100644 tools/perf/arch/powerpc/include/perf_regs.h
diff --git a/tools/perf/arch
The enum definition assigns an 'id' to each register in "struct pt_regs"
of arch/powerpc. The order of these values in the enum definition are
based on the corresponding macros in arch/powerpc/include/uapi/asm/ptrace.h.
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasa
From: Madhavan Srinivasan
Add sample_reg_mask array with pt_regs registers.
This is needed for printing supported regs ( -I? option).
Signed-off-by: Madhavan Srinivasan
---
tools/perf/arch/powerpc/util/Build | 1 +
tools/perf/arch/powerpc/util/perf_regs.c | 48 ++
enables
sampling of the interrupted machine state.
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasan
---
arch/powerpc/Kconfig | 1 +
arch/powerpc/perf/Makefile| 1 +
arch/powerpc/perf/perf_regs.c | 85 +++
3 files changed, 87 insertions
om V1:
- Solved the name missmatch issue in the from and signed-off field of the patch
series.
- Added necessary comments in the 3rd patch ie perf/powerpc ,as suggested by
Maddy.
Anju T (3):
perf/powerpc: assign an id to each powerpc register
perf/powerpc: add support for sampling intr machine
(/boot/vmlinux)
Signed-off-by: Anju T
Reviewed-by : Madhavan Srinivasan
---
tools/perf/arch/powerpc/include/perf_regs.h | 65 +
tools/perf/config/Makefile | 5 +++
2 files changed, 70 insertions(+)
create mode 100644 tools/perf/arch/powerpc/include
Instructions which can be emulated are suppliants for optimization.
Before optimization ensure that the address range between the detour
buffer allocated and the instruction being probed is within ?? 32MB.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/include/asm/sstep.h | 1 +
arch/powerpc
rbe(in case of branch instructions) is limited to
unconditional branch instructions only, since the conditional
branches are to be assessed carefully in SMP systems.
- create_return_branch() is omitted.
- Comments by Masami are addressed.
Anju T Sudhakar (3):
arch/powerpc : Add detour buffer s
Mark optprobe 'ok' for powerpc
Signed-off-by: Anju T Sudhakar
---
Documentation/features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig| 1 +
arch/powerpc/kernel/Makefile| 1 +
3 files changed, 3 insert
slot for detour buffer is allocated from the reserved area.
For the time being 64KB is reserved in memory for this purpose.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/include/asm/kprobes.h | 24 +++
arch/powerpc/kernel/optprobes_head.S | 119 +++
2 files
Add ldbar spr to sysfs. The spr will hold thread level In-Memory Collection
(IMC)
counter configuration data.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/kernel/sysfs.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
Hi,
On Wednesday 01 November 2017 06:22 AM, Michael Ellerman wrote:
Anju T Sudhakar writes:
Call trace observed during boot:
What's the actual oops?
The actual oops is:
[0.750749] PCI: CLS 0 bytes, default 128
[0.750855] Unpacking initramfs...
[1.570445] Freeing i
re-imc counters are not even initialized. Thus creating the
above stack dump.
Add a check to see if core-imc counters are enabled or not in the cpuhotplug
offline path before migrating the context to handle this failing scenario.
Signed-off-by: Madhavan Srinivasan
Signed-off-by: Anju T Sudhakar
---
root@:/sys/kernel/debug/imc# ls
imc_cmd_0 imc_cmd_8 imc_mode_0 imc_mode_8
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/
Hi,
Kindly ignore this version
Thanks,
Anju
On Monday 13 November 2017 11:06 AM, Anju T Sudhakar wrote:
In memory Collection (IMC) counter pmu driver controls the ucode's execution
state. At the system boot, IMC perf driver pause the ucode. Ucode state is
changed to "running"
root@:/sys/kernel/debug/imc# ls
imc_cmd_0 imc_cmd_8 imc_mode_0 imc_mode_8
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/
Add ldbar spr to sysfs. The spr will hold thread level In-Memory Collection
(IMC)
counter configuration data.
Signed-off-by: Anju T Sudhakar
Acked-by: Madhavan Srinivasan
---
arch/powerpc/kernel/sysfs.c | 8
1 file changed, 8 insertions(+)
diff --git a/arch/powerpc/kernel/sysfs.c b
: Anju T Sudhakar
---
arch/powerpc/perf/imc-pmu.c | 15 +++
1 file changed, 15 insertions(+)
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 8812624..08139f9 100644
--- a/arch/powerpc/perf/imc-pmu.c
+++ b/arch/powerpc/perf/imc-pmu.c
@@ -30,6 +30,7 @@ static
Change the data type for the variable 'ncpu' in ppc_core_imc_cpu_offline(),
since cpumask_any_but() returns an 'int' value.
Signed-off-by: Anju T Sudhakar
Reported-by: David Binderman
---
arch/powerpc/perf/imc-pmu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-
Factor out memory freeing part for attribute elements from
imc_common_mem_free(),
also handle the memory leak for pmu->events in update_events_in_group().
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/perf/imc-pmu.c | 24
1 file changed, 16 insertions(+)
Hi,
On Tuesday 06 March 2018 04:35 PM, Michael Ellerman wrote:
Anju T Sudhakar writes:
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 4437c70..caefb64 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -757,6 +759,9 @@ static int
03
803803803803803 1306803
803 Performance monitoring interrupts
The PMI interrupts count remains the same.
Changelog:
>From v1 -> v2
--
* Added priv
Add PMU functions to support trace-imc.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/perf/imc-pmu.c | 175
1 file changed, 175 insertions(+)
diff --git a/arch/powerpc/perf/imc-pmu.c b/arch/powerpc/perf/imc-pmu.c
index 1f09265c8fb0..32ff0e449fca 100644
'. So to
accommodate trace-mode of IMC, reposition setting of ldbar for thread-imc
to thread_imc_event_add(). Also reset ldbar at thread_imc_event_del().
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/perf/imc-pmu.c | 28 +---
1 file changed, 17 insertions(+), 11
Add the macros needed for IMC (In-Memory Collection Counters) trace-mode
and data structure to hold the trace-imc record data.
Also, add the new type "OPAL_IMC_COUNTERS_TRACE" in 'opal-api.h', since
there is a new switch case added in the opal-calls for IMC.
Signed-off
Patch detects trace-imc events, does memory initilizations for each online
cpu, and registers cpuhotplug call-backs.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/perf/imc-pmu.c | 91 +++
arch/powerpc/platforms/powernv/opal-imc.c | 3 +
include/linux
From: Madhavan Srinivasan
Add code to restrict user access to thread_imc pmu since
some event report privilege level information.
Fixes: f74c89bd80fb3 ('powerpc/perf: Add thread IMC PMU support')
Signed-off-by: Madhavan Srinivasan
Signed-off-by: Anju T Sudhakar
---
arch/powerp
On 4/16/19 3:14 PM, Anju T Sudhakar wrote:
Hi,
Kindly ignore this series, since patch 5/5 in this series doesn't
incorporate the event-format change
that I've done in v4 of this series.
Apologies for the inconvenience. I will post the updated v5 soon.
s/v5/v4
Thanks,
Anj
Add the macros needed for IMC (In-Memory Collection Counters) trace-mode
and data structure to hold the trace-imc record data.
Also, add the new type "OPAL_IMC_COUNTERS_TRACE" in 'opal-api.h', since
there is a new switch case added in the opal-calls for IMC.
Signed-off
Patch detects trace-imc events, does memory initilizations for each online
cpu, and registers cpuhotplug call-backs.
Signed-off-by: Anju T Sudhakar
Reviewed-by: Madhavan Srinivasan
---
arch/powerpc/perf/imc-pmu.c | 91 +++
arch/powerpc/platforms/powernv/opal
'. So to
accommodate trace-mode of IMC, reposition setting of ldbar for thread-imc
to thread_imc_event_add(). Also reset ldbar at thread_imc_event_del().
Signed-off-by: Anju T Sudhakar
Reviewed-by: Madhavan Srinivasan
---
arch/powerpc/perf/imc-pmu.c | 28 +---
1 fi
Add PMU functions to support trace-imc and define the format for
trace-imc events.
Signed-off-by: Anju T Sudhakar
Reviewed-by: Madhavan Srinivasan
---
arch/powerpc/perf/imc-pmu.c | 197 +++-
1 file changed, 196 insertions(+), 1 deletion(-)
diff --git a/arch
From: Madhavan Srinivasan
Add code to restrict user access to thread_imc pmu since
some event report privilege level information.
Fixes: f74c89bd80fb3 ('powerpc/perf: Add thread IMC PMU support')
Signed-off-by: Madhavan Srinivasan
Signed-off-by: Anju T Sudhakar
---
arch/powerp
03
803803803803803 1306803
803 Performance monitoring interrupts
The PMI interrupts count remains the same.
Changelog:
>From v2 -> v3
--
* Redefined
/0x1c0
system_call_common+0xf0/0x278
Reported-by: Shivaprasad G Bhat
Signed-off-by: Ritesh Harjani
Signed-off-by: Anju T Sudhakar
---
fs/iomap/buffered-io.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index bcfc28
host.
Patch adds a function to pick an arch specific event for 'perf kvm record',
instead of selecting 'cycles' as a default event for all architectures.
For powerpc this function checks for any user specified event, and if there
isn't any it returns invalid instead of proceedin
.
Signed-off-by: Anju T Sudhakar
---
tools/perf/builtin-kvm.c | 2 +-
tools/perf/util/kvm-stat.h | 3 +++
2 files changed, 4 insertions(+), 1 deletion(-)
diff --git a/tools/perf/builtin-kvm.c b/tools/perf/builtin-kvm.c
index b33c83489120..5d2b34d290a3 100644
--- a/tools/perf/builtin-kvm.c
+++ b/tools
Use 'trace_imc/trace_cycles' as the default event for 'perf kvm record'
in powerpc.
Signed-off-by: Anju T Sudhakar
---
tools/perf/arch/powerpc/util/kvm-stat.c | 15 +++
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/perf/arch/powerpc/util
.
Currently powerpc architecture is not having support for auxtrace. So as
a workaround for this issue, set NO_AUXTRACE for powerpc.
Signed-off-by: Anju T Sudhakar
---
tools/perf/arch/powerpc/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch
for this issue, patch 1/2 set
NO_AUXTRACE for powerpc. (Any other solutions are welcome.)
Patch 2/2 also add extended regs to sample_reg_mask in the tool side to use
with `-I?` option.
Anju T Sudhakar (2):
tools/perf: set no_auxtrace for powerpc
powerpc/perf: Add support for outputting extended
: Anju T Sudhakar
---
arch/powerpc/include/asm/perf_event_server.h | 5 +++
arch/powerpc/include/uapi/asm/perf_regs.h | 13 +++-
arch/powerpc/perf/core-book3s.c | 1 +
arch/powerpc/perf/perf_regs.c | 29 ++--
arch/powerpc/perf/power9-pmu.c
Use 'trace_imc/trace_cycles' as the default event for 'perf kvm record'
in powerpc.
Signed-off-by: Anju T Sudhakar
---
tools/perf/arch/powerpc/util/kvm-stat.c | 15 +++
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/perf/arch/powerpc/util
host.
Patch adds a function to pick an arch specific event for 'perf kvm record',
instead of selecting 'cycles' as a default event for all architectures.
For powerpc this function checks for any user specified event, and if there
isn't any it returns invalid instead of proceedin
Use 'trace_imc/trace_cycles' as the default event for 'perf kvm record'
in powerpc.
Signed-off-by: Anju T Sudhakar
---
tools/perf/arch/powerpc/util/kvm-stat.c | 15 +++
1 file changed, 11 insertions(+), 4 deletions(-)
diff --git a/tools/perf/arch/powerpc/util
host.
Patch adds a function to pick an arch specific event for 'perf kvm record',
instead of selecting 'cycles' as a default event for all architectures.
For powerpc this function checks for any user specified event, and if there
isn't any it returns invalid instead of proceedin
On 6/28/19 9:04 AM, Qian Cai wrote:
On Jun 27, 2019, at 11:12 PM, Michael Ellerman wrote:
Qian Cai writes:
Read of debugfs imc_cmd file for a memory-less node will trigger a crash below
on this power9 machine which has the following NUMA layout.
What type of machine is it?
description:
in V1 into a single patch.
- Comments by Masami are addressed.
- Some helper functions are implemented in separate patches.
- Optimization for kprobe placed on the kretprobe_trampoline during
boot time is implemented.
Kindly let me know your suggestions and comments.
Thanks,
-Anju
Anju T Su
Kprobe placed on the kretprobe_trampoline during boot time can be
optimized, since the instruction at probe point is a 'nop'.
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/kernel/kprobes.c | 8
arch/powerpc/kernel/optprobes.c | 7 +++
2 files changed, 11 insert
From: "Naveen N. Rao"
Signed-off-by: Naveen N. Rao
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/include/asm/code-patching.h | 1 +
arch/powerpc/lib/code-patching.c | 24 +++-
2 files changed, 24 insertions(+), 1 deletion(-)
diff --git a/arch/power
buffer allocated and the instruction being probed
is within ?? 32MB.
Signed-off-by: Anju T Sudhakar
Signed-off-by: Naveen N. Rao
---
.../features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/kprobes.h
From: "Naveen N. Rao"
Introduce __PPC_SH64() as a 64-bit variant to encode shift field in some
of the shift and rotate instructions operating on double-words. Convert
some of the BPF instruction macros to use the same.
Signed-off-by: Naveen N. Rao
---
arch/powerpc/include/asm/ppc-opcode.h | 1
Hi Masami,
Thank you for reviewing the patch set.
On Friday 16 December 2016 05:22 PM, Masami Hiramatsu wrote:
On Wed, 14 Dec 2016 21:48:30 +0530
Anju T Sudhakar wrote:
From: "Naveen N. Rao"
The coding is OK to me. Please add a description for this patch
here, e.g. what is do
Hi Masami,
On Friday 16 December 2016 07:32 PM, Masami Hiramatsu wrote:
On Wed, 14 Dec 2016 21:48:27 +0530
Anju T Sudhakar wrote:
Detour buffer contains instructions to create an in memory pt_regs.
After the execution of the pre-handler, a call is made for instruction
emulation.
The NIP
buffer allocated and the instruction being probed
is within ?? 32MB.
Signed-off-by: Anju T Sudhakar
Signed-off-by: Naveen N. Rao
---
.../features/debug/optprobes/arch-support.txt | 2 +-
arch/powerpc/Kconfig | 1 +
arch/powerpc/include/asm/kprobes.h
Kprobe placed on the kretprobe_trampoline during boot time can be
optimized, since the instruction at probe point is a 'nop'.
Signed-off-by: Anju T Sudhakar
Acked-by: Masami Hiramatsu
---
arch/powerpc/kernel/kprobes.c | 8
arch/powerpc/kernel/optprobes.c | 7 +++---
ressed.
- Description in the cover letter is modified a bit.
Kindly let me know your suggestions and comments.
Thanks,
-Anju
Anju T Sudhakar (2):
arch/powerpc: Implement Optprobes
arch/powerpc: Optimize kprobe in kretprobe_trampoline
Naveen N. Rao (2):
powerpc: asm/ppc-opcode.h: introduce __PP
he current instruction.
This patch verifies whether the target address is within +/- 32MB
range or not.
Signed-off-by: Naveen N. Rao
Signed-off-by: Anju T Sudhakar
---
arch/powerpc/include/asm/code-patching.h | 1 +
arch/powerpc/lib/code-patching.c | 24 +++-
2 files c
From: "Naveen N. Rao"
Introduce __PPC_SH64() as a 64-bit variant to encode shift field in some
of the shift and rotate instructions operating on double-words. Convert
some of the BPF instruction macros to use the same.
Signed-off-by: Naveen N. Rao
---
arch/powerpc/include/asm/ppc-opcode.h | 1
1 - 100 of 190 matches
Mail list logo
