Ensure the kernel correctly switches VSX registers correctly. VSX
registers are all volatile, and despite the kernel preserving VSX
across syscalls, it doesn't have to. Test that during interrupts and
timeslices ending the VSX regs remain the same.
Signed-off-by: Cyril Bur
---
tools/te
an different area of the
powerpc selftests
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/fpu_asm.h | 81 ++
tools/testing/selftests/powerpc/math/fpu_asm.S | 73 ++-
2 files changed, 86 insertions(+), 68 deletions(-)
create mode
If a thread receives a signal while transactional the kernel creates a
second context to show the transactional state of the process. This
test loads some known values and waits for a signal and confirms that
the expected values are in the signal context.
Signed-off-by: Cyril Bur
---
tools
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/math/vmx_asm.S | 85 +-
tools/testing/selftests/powerpc/vmx_asm.h | 98 ++
2 files changed, 99 insertions(+), 84 deletions(-)
create mode 100644 tools/testing/selftests/powerpc
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/gpr_asm.h | 96 +++
1 file changed, 96 insertions(+)
create mode 100644 tools/testing/selftests/powerpc/gpr_asm.h
diff --git a/tools/testing/selftests/powerpc/gpr_asm.h
b/tools/testing/selftests/powerpc
If a thread receives a signal while transactional the kernel creates a
second context to show the transactional state of the process. This
test loads some known values and waits for a signal and confirms that
the expected values are in the signal context.
Signed-off-by: Cyril Bur
---
tools
ther structures [pending rename] are for
checkpointed state.
Signed-off-by: Cyril Bur
Acked-by: Simon Guo
---
arch/powerpc/include/asm/processor.h | 7 +-
arch/powerpc/kernel/process.c| 83 +++
arch/powerpc/kernel/ptrace.c | 278 +--
ar
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/tm/tm.h | 27 +++
1 file changed, 27 insertions(+)
diff --git a/tools/testing/selftests/powerpc/tm/tm.h
b/tools/testing/selftests/powerpc/tm/tm.h
index 60318ba..2c8da74 100644
--- a/tools/testing/selftests
Make the structures being used for checkpointed state named
consistently with the pt_regs/ckpt_regs.
Signed-off-by: Cyril Bur
---
arch/powerpc/include/asm/processor.h | 8 ++---
arch/powerpc/kernel/asm-offsets.c| 12
arch/powerpc/kernel/fpu.S| 2 +-
arch/powerpc
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/harness.c | 9 +++--
tools/testing/selftests/powerpc/utils.h | 2 +-
2 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/tools/testing/selftests/powerpc/harness.c
b/tools/testing/selftests/powerpc/harness.c
index
If a thread receives a signal while transactional the kernel creates a
second context to show the transactional state of the process. This
test loads some known values and waits for a signal and confirms that
the expected values are in the signal context.
Signed-off-by: Cyril Bur
---
tools
If a thread receives a signal while transactional the kernel creates a
second context to show the transactional state of the process. This
test loads some known values and waits for a signal and confirms that
the expected values are in the signal context.
Signed-off-by: Cyril Bur
---
tools
Previous rework of TM code leaves these functions unused
Signed-off-by: Cyril Bur
---
arch/powerpc/include/asm/tm.h | 5 -
arch/powerpc/kernel/fpu.S | 26 --
arch/powerpc/kernel/vector.S | 25 -
3 files changed, 56 deletions(-)
diff
Signed-off-by: Cyril Bur
---
tools/testing/selftests/powerpc/Makefile | 1 +
tools/testing/selftests/powerpc/signal/Makefile| 12 +++
tools/testing/selftests/powerpc/signal/signal.S| 50 ++
tools/testing/selftests/powerpc/signal/signal.c| 111
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Simon Guo
>
> This selftest suite is for PPC register ptrace functionality. It
> is also useful for Transaction Memory functionality verification.
>
> Signed-off-by: Anshuman Khandual
> Signed-off-by: Simon Guo
>
Hi Si
On Tue, 2016-09-13 at 01:01 +0800, Simon Guo wrote:
> Hi Cyril,
> On Tue, Sep 13, 2016 at 03:49:10PM +1000, Cyril Bur wrote:
> >
> > Thanks for putting the effort in to get these merged! I have a few
> > remarks that apply to more than one patch which I'll sa
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Anshuman Khandual
>
> 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:
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Anshuman Khandual
>
> 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 regi
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Anshuman Khandual
>
> 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
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Anshuman Khandual
>
> 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 Kh
f-by: Anshuman Khandual
> Signed-off-by: Simon Guo
Reviewed-by: Cyril Bur
> ---
> tools/testing/selftests/powerpc/context_switch/cp_abort.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git
> a/tools/testing/selftests/powerpc/context_switch/cp_abort
On Mon, 2016-09-12 at 15:33 +0800, wei.guo.si...@gmail.com wrote:
> From: Anshuman Khandual
>
> This patch adds ptrace interface test for TM SPR registers. This
> also adds ptrace interface based helper functions related to TM
> SPR registers access.
>
I'm seeing this one fail a lot, it does oc
ixed my unability to use & and | correctly.
- Spotted by Laurent Dufour, thanks
Dropped the selftest patch as it was merged as part of a previous
series
Cyril Bur (2):
powerpc: tm: Add TM Unavailable Exception
powerpc: tm: Enable transactional memory (TM) lazily for us
el to avoid the expensive swap of the TM registers.
A TM unavailable exception will occur if a thread does use TM and the
kernel will enable MSR_TM and leave it so for some time afterwards.
Signed-off-by: Cyril Bur
---
arch/powerpc/include/asm/processor.h | 1 +
arch/powerpc/kernel/proc
-off-by: Cyril Bur
---
arch/powerpc/kernel/traps.c | 25 +
1 file changed, 25 insertions(+)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 0eba74b..cd40130 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1372,6
y
zero).
The above test was run on the same 4.13-rc1 with this patch applied for
a over 48 hours. The test was executed at a rate of about one run per
second. An incorrect value was never observed.
This gives me confidence that this patch is correct.
Running the kernel selftests does not detect a
On Wed, 2017-07-26 at 10:35 +0530, Shilpasri G Bhat wrote:
> Adds a generic powercap framework to change the system powercap
> inband through OPAL-OCC command/response interface.
>
> Signed-off-by: Shilpasri G Bhat
> ---
> Changes from V7:
> - Replaced sscanf with kstrtoint
>
> arch/powerpc/inc
On Wed, 2017-07-26 at 10:35 +0530, Shilpasri G Bhat wrote:
> This patch adds support to set power-shifting-ratio for CPU-GPU which
> is used by OCC power capping algorithm.
>
> Signed-off-by: Shilpasri G Bhat
Hi Shilpasri,
I started looking though this - a lot the comments to patch 1/3 apply
h
On Wed, 2017-07-26 at 10:35 +0530, Shilpasri G Bhat wrote:
> Adds support for clearing different sensor groups. OCC inband sensor
> groups like CSM, Profiler, Job Scheduler can be cleared using this
> driver. The min/max of all sensors belonging to these sensor groups
> will be cleared.
>
Hi Shil
nv_defconfig.
>
> Signed-off-by: Michael Ellerman
Reviewed-by: Cyril Bur
> ---
> arch/powerpc/Makefile | 4
> arch/powerpc/configs/be.config | 1 +
> 2 files changed, 5 insertions(+)
> create mode 100644 arch/powerpc/configs/be.config
>
> diff --git a/arch/p
1
make[1]: *** [arch/powerpc/boot/Makefile:198:
arch/powerpc/boot/cuboot.o] Error 1
COPYarch/powerpc/boot/inffixed.h
make: *** [arch/powerpc/Makefile:289: zImage] Error 2
make: *** Waiting for unfinished jobs
With this patch applied builds fine. Please merge!
Reviewed-by: Cyril Bur
&g
On Mon, 2017-07-31 at 10:58 +1000, Matt Brown wrote:
> This patch adds emulation of the cmpb instruction, enabling xmon to
> emulate this instruction.
> Tested for correctness against the cmpb asm instruction on ppc64le.
>
> Signed-off-by: Matt Brown
Reviewed-by: Cyril B
On Mon, 2017-07-31 at 10:58 +1000, Matt Brown wrote:
> This adds emulation for the bpermd instruction.
> Tested for correctness against the bpermd instruction on ppc64le.
>
> Signed-off-by: Matt Brown
Reviewed-by: Cyril Bur
> ---
> v4:
> - change ifdef macro
On Mon, 2017-07-31 at 10:58 +1000, Matt Brown wrote:
> This adds emulation for the prtyw and prtyd instructions.
> Tested for logical correctness against the prtyw and prtyd instructions
> on ppc64le.
>
> Signed-off-by: Matt Brown
Reviewed-by: Cyril Bur
> ---
> v4:
>
On Mon, 2017-07-31 at 10:58 +1000, Matt Brown wrote:
> This adds emulation for the isel instruction.
> Tested for correctness against the isel instruction and its extended
> mnemonics (lt, gt, eq) on ppc64le.
>
> Signed-off-by: Matt Brown
Reviewed-by: Cyril Bur
> ---
> v
immediately clear that it is
correct, we're definitely on the other side of the optimisation vs
readability line. It looks like it is, perhaps some comments to
clarify.
Otherwise,
Reviewed-by: Cyril Bur
> ---
> v4:
> - change ifdef macro from __powerpc64__ to CONFIG_PPC64
On Mon, 2017-07-31 at 07:54 +0530, Shilpasri G Bhat wrote:
> Adds a generic powercap framework to change the system powercap
> inband through OPAL-OCC command/response interface.
>
> Signed-off-by: Shilpasri G Bhat
> ---
> Changes from V8:
> - Use __pa() while passing pointer in opal call
> - Use
Small amount of #define duplication, makes sense for these to be in
reg.h.
Signed-off-by: Cyril Bur
---
arch/powerpc/include/asm/reg.h | 1 +
arch/powerpc/kernel/traps.c| 10 +-
2 files changed, 6 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/include/asm/reg.h b/arch
On Wed, 2017-08-16 at 10:52 +0200, Christophe LEROY wrote:
> Hi,
>
> Le 16/08/2017 à 08:50, Cyril Bur a écrit :
> > Small amount of #define duplication, makes sense for these to be in
> > reg.h.
> >
> > Signed-off-by: Cyril Bur
>
> Looks similar to t
("powerpc/tm: Fix saving of TM SPRs in core dump")
> Signed-off-by: Gustavo Romero
Keeping in mind I reviewed cd63f3c and feeling a bit sheepish having
missed this.
Reviewed-by: Cyril Bur
> ---
> arch/powerpc/kernel/ptrace.c | 2 +-
> 1 file changed, 1 insertion(+), 1
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