-by: Anton Blanchard an...@samba.org
Cc: sta...@vger.kernel.org # 3.6+
---
Index: b/arch/powerpc/kernel/machine_kexec_64.c
===
--- a/arch/powerpc/kernel/machine_kexec_64.c
+++ b/arch/powerpc/kernel/machine_kexec_64.c
@@ -17,6 +17,7
one.
A simple test was created to verify the fix:
http://ozlabs.org/~anton/junkcode/user_dscr_test.c
Without the patch we get a SIGILL and it passes with the patch.
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org
---
Index: b/arch/powerpc/include/asm/ppc-opcode.h
Hi Eric,
From: Eric Dumazet eduma...@google.com
Using bit fields is dangerous on ppc64, as the compiler uses 64bit
instructions to manipulate them. If the 64bit word includes any
atomic_t or spinlock_t, we can lose critical concurrent changes.
This is happening in af_unix, where
p_toc is an 8 byte relative offset to the TOC that we place in the
text section. This means it is only 4 byte aligned where it should
be 8 byte aligned. Add an explicit alignment.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/head_64.S
changelog entry and Signed-off-by):
Acked-by: Anton Blanchard an...@samba.org
Anton
___
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
https://lists.ozlabs.org/listinfo/linuxppc-dev
...@suse.de
Signed-off-by: Anton Blanchard an...@samba.org
---
Thanks Aaro for reporting this, and Alexander for an initial
fix. This tested ok for me with both a new and an old toolchain,
but would appreciate if you could double check it fixes your issues
too.
diff --git a/arch/powerpc/kernel
Hi,
Just following up on this. I've had a few people complaining about
audit being broken on ppc64 and it would be nice to fix.
Anton
--
On Wed, 9 Jan 2013 10:46:17 +1100
Anton Blanchard an...@samba.org wrote:
Commit b05d8447e782 (audit: inline audit_syscall_entry to reduce
burden
record.
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org # 3.3+
---
Index: b/include/linux/audit.h
===
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -119,7 +119,7 @@ static inline void
Some distros enable auditing by default which forces us through the
syscall trace path. Remove the static branch prediction in our 64bit
syscall handler and let the hardware do the prediction.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/entry_64.S
in a
subsequent patch.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/entry_64.S
===
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -34,6 +34,12 @@
#include asm/ftrace.h
#include
on a POWER7 box:
http://ozlabs.org/~anton/junkcode/null_syscall.c
Baseline: 920.6 cycles
Patched: 719.6 cycles
An improvement of 22%.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/entry_64.S
Hi Jimi,
I know this is a little late, but shouldn't these power7 specific
thingies be in obj-$(CONFIG_PPC_BOOK3S_64). The reason I ask is
that my compiler pukes on dcbtst and as I deal with that I wanted
to point this out.
I guess we could do that. It's a bit strange your assembler is
No changes, just update the configs with savedefconfig.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/configs/ppc64_defconfig
===
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs
Set CONFIG_NLS_DEFAULT to utf8. The distros do this (eg ppc64 FC17
and RHEL6) as well as the x86 defconfigs. Userspace these days is
most likely to expect utf8 anyway.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/configs/ppc64_defconfig
We need devtmpfs enabled to boot on recent versions of Fedora. EFI
partitions will be useful for large block devices. tmpfs ACL support
is used by some distros for managing access to devices.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/configs/pseries_defconfig
trampolines don't setup the static
chain register so adding this option and forcing gcc to error out
makes even more sense.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/Makefile
===
--- a/arch/powerpc
Hi Ben,
My only potential objection was that it might have been cleaner to
actually build prom_init.c as a separate binary alltogether and piggy
back it...
Yeah, I went through a number of options before settling on this one.
Move prom_init.c into arch/powerpc/boot
Pros:
- 32 bit
which passes through the
prom_init.c TOC entries to make sure everything looks reasonable.
Signed-off-by: Anton Blanchard an...@samba.org
---
To keep the patch small and reviewable, I separated the removal
of the RELOC macro into a follow up patch.
For simplicity I do the relocation in C but if self
Now we relocate prom_init.c on 64bit we can finally remove the
nasty RELOC() macro.
Finally a patch that I can claim has a net positive effect on
the kernel. It doesn't happen very often.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/prom_init.c
relocation for this to work, hence -mcmodel=large.
On older kernels we fall back to the two level TOC (-mminimal-toc)
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/Makefile
===
--- a/arch/powerpc/Makefile
+++ b
Hi,
Commit bdb498c20040 (TTY: hvc_console, add tty install) breaks HVC on
ppc64. It looks a bit like a refcounting issue and we end up releasing
the tty. I haven't had a change to look closer yet.
Anton
___
Linuxppc-dev mailing list
If we build a kernel with CONFIG_RELOCATABLE=y CONFIG_CRASH_DUMP=n,
the kernel fails when we run at a non zero offset. It turns out
we were incorrectly wrapping some of the relocatable kernel code
with CONFIG_CRASH_DUMP.
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org
Hi,
Thanks for looking into this mess. One small thing we can fix in a
follow up patch:
+ if (!found)
+ printk(KERN_WARNING Can't find PMC that caused
I think it would be worth making that a printk_ratelimited. We are
probably dead at this stage but we shouldn't spam the
Most of setup.h should not be exported to userspace, so move it
back. All we are left with is the asm-generic include to pick
up the COMMAND_LINE_SIZE define.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/include/asm/setup.h
I noticed a couple of function prototypes for functions that
no longer exist. Remove them.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/include/asm/setup.h
===
--- a/arch/powerpc/include/asm/setup.h
Hi,
Yes. With that patch applied, things work for me again.
Thanks Alex, Nish. We can reproduce this on one of our Biminis, looking
into it now.
Anton
___
Linuxppc-dev mailing list
Linuxppc-dev@lists.ozlabs.org
that the global lock is gone.
Reported-by: Alexander Graf ag...@suse.de
Signed-off-by: Anton Blanchard an...@samba.org
---
There is still an issue with the lazy u3 flushing, but I wanted
to get this out for testing.
Index: b/arch/powerpc/kernel/iommu.c
effectively been disabled since Dec 2006. Ergo, I think we can
drop it.
Ouch. We probably had the last nighthawk in existence and we crushed it
years ago. So:
Acked-by: Anton Blanchard an...@samba.org
Anton
___
Linuxppc-dev mailing list
Linuxppc-dev
Hi Ben,
Or could we just move these tracepoints inside the
irq_enter()/irq_exit() area? (Seems not good for the timer_interrupt
case).
I'd say just move them in. Anton, any objection ?
Sounds reasonable, no objections from me.
Anton
___
test case:
http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org # 3.0+
---
Index: b/arch/powerpc/kernel/sysfs.c
===
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch
of thread.dscr
into the child. To avoid this, always keep thread.dscr in sync with
reality.
This issue was found with the following testcase:
http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org # 3.0+
---
Index: b/arch/powerpc
and thread.dscr_inherit from
the parent which ends up being much simpler.
This was found with the following test case:
http://ozlabs.org/~anton/junkcode/dscr_default_test.c
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org # 3.0+
---
Index: b/arch/powerpc/kernel/process.c
at the same time:
http://ozlabs.org/~anton/junkcode/dscr_default_test.c
http://ozlabs.org/~anton/junkcode/dscr_explicit_test.c
http://ozlabs.org/~anton/junkcode/dscr_inherit_test.c
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@kernel.org # 3.0+
---
Index: b/arch/powerpc/kernel/entry_64.S
powerpc: Use enhanced touch instructions in POWER7
copy_to_user/copy_from_user was applied twice. Remove one.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/lib/copyuser_power7.S
===
--- a/arch/powerpc/lib
The enhanced prefetch hint patches corrupt the condition register
that was used to check if we are in interrupt. Fix this by using cr1.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/lib/copyuser_power7.S
Enable the hardware RNG and crypto modules. I verified they both
autoload via the VIO subsystem, so there is no need to build them in.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/configs/ppc64_defconfig
Reduce the severity of the warning given when firmware flash is
not supported. Not all platforms have it.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: b/arch/powerpc/kernel/rtas_flash.c
===
--- a/arch/powerpc/kernel
it when transitioning from the guest to the host.
I have a glibc patch that implements sched_getcpu on top of this.
Testing on a POWER7:
baseline: 538 cycles
vdso: 30 cycles
Signed-off-by: Anton Blanchard an...@samba.org
---
v2:
- Fix kvm
- add vdso32 version on 64bit kernel
Index: linux
but were never started (eg kexec into a kernel with an
nr_cpus= boot option). They are going to die way before we get into
xmon since we haven't set any kernel state up for them.
Signed-off-by: Anton Blanchard an...@samba.org
---
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
interrupt handling rework
of 3.4 but was hidden until recently because hard_irq_disable did
nothing.
This issue will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta
will eventually appear in 3.4 stable since the
hard_irq_disable fix is marked stable, so mark this one for stable
too.
Signed-off-by: Anton Blanchard an...@samba.org
Cc: sta...@vger.kernel.org
---
v2: create a helper, suggested by Ben.
Index: linux-build/arch/powerpc/platforms/pseries
We want to access the MMCRA_SIHV and MMCRA_SIPR bits elsewhere so
create mmcra_sihv and mmcra_sipr which hide the differences between
the old and new layout of the bits.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/perf/core-book3s.c
The logic to choose whether to use the SIAR or get the information
out of pt_regs is going to get more complicated, so do it once in
perf_read_regs.
We overload regs-result which is gross but we are already doing it
with regs-dsisr.
Signed-off-by: Anton Blanchard an...@samba.org
---
Other
was
unable to profile any of our early exception code for example.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/perf/core-book3s.c
===
--- linux-build.orig/arch/powerpc/perf/core-book3s.c2012-06-26
We use SIAR or regs-nip for the instruction pointer depending on
the PMU configuration, but we always use regs-nip in the callchain.
Use perf_instruction_pointer so the backtrace is consistent.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/perf/callchain.c
Hi Scott,
Won't this break core-fsl-emb, which doesn't define
perf_instruction_pointer()?
It links ok for me. You should get the default version:
#ifndef perf_misc_flags
# define perf_misc_flags(regs) \
(user_mode(regs) ? PERF_RECORD_MISC_USER :
PERF_RECORD_MISC_KERNEL)
#
cycles
Signed-off-by: Anton Blanchard an...@samba.org
---
Outstanding issues:
- Do we have any KVM issues?
- This will only work with 64 bit kernels for now, do we need to come up
with a scheme for 32 bit?
- Implement 32 bit userspace version (running on 64 bit kernels)
Index: linux-build
with a DMA window.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/vio.c
===
--- linux-build.orig/arch/powerpc/kernel/vio.c 2012-06-08 14:02:05.548512941
+1000
+++ linux-build/arch/powerpc
Similar to PCI, separate the bus probe from device probe. This allows
us to attach bus notifiers for DMA debug and IOMMU fault injection
before devices have been probed.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/vio.c
The DMA API debug code has hooks to verify all DMA entries have been
freed at time of hot unplug. We need to call dma_debug_add_bus for
this to work.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/vio.c
:00.1: Unrecoverable error in the card
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/iommu.c
===
--- linux-build.orig/arch/powerpc/kernel/iommu.c2012-06-08
09:01:02.785709100
Hi,
Breaks the cell code with:
arch/powerpc/platforms/cell/iommu.c:521:15: error: 'struct
iommu_table' has no member named 'it_hint'
Yuck, I'll spin a fix. There's no need for the code to bump the hint.
Anton
___
Linuxppc-dev mailing list
improved 69% with this patch applied.
Signed-off-by: Anton Blanchard an...@samba.org
---
All patches combined improve performance by 178%
v2.0: Fix cell build, noticed by mpe.
Index: linux-build/arch/powerpc/kernel/iommu.c
gets
the destination 128 byte aligned then uses dcbz on whole cachelines.
Before:
1048576 bytes (10 GB) copied, 0.414744 s, 25.3 GB/s
After:
1048576 bytes (10 GB) copied, 0.268597 s, 39.0 GB/s
39 GB/s, a new record.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build
gets
the destination cacheline aligned then uses dcbz on whole cachelines.
Before:
1048576 bytes (10 GB) copied, 0.414744 s, 25.3 GB/s
After:
1048576 bytes (10 GB) copied, 0.268597 s, 39.0 GB/s
39 GB/s, a new record.
Signed-off-by: Anton Blanchard an...@samba.org
---
v2: handle any
back to using the
original request size.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/platforms/pseries/msi.c
===
--- linux-build.orig/arch/powerpc/platforms/pseries/msi.c 2012-06-04
if the quota allows it.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/platforms/pseries/msi.c
===
--- linux-build.orig/arch/powerpc/platforms/pseries/msi.c 2012-06-03
20:49:29.082280031
). I saw these pauses as
a consequence of getting a stray hypervisor decrementer interrupt
left over from exiting a KVM guest.
Urgh, sorry for that mess.
Acked-by: Anton Blanchard an...@samba.org
Anton
This isn't quite a straight revert because of changes to the
surrounding code
tce_buildmulti_pSeriesLP uses a per cpu page to communicate with the
hypervisor. We currently rely on the IOMMU table spinlock but
subsequent patches will be removing that so disable interrupts
around all accesses of tce_page.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux
in iommu_free.
Some performance numbers were obtained with a Chelsio T3 adapter on
two POWER7 boxes, running a 100 session TCP round robin test.
Performance improved 32% with this patch applied.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/iommu.c
This patch moves tce_free outside of the lock in iommu_free.
Some performance numbers were obtained with a Chelsio T3 adapter on
two POWER7 boxes, running a 100 session TCP round robin test.
Performance improved 25% with this patch applied.
Signed-off-by: Anton Blanchard an...@samba.org
In preparation for IOMMU pools, push the spinlock into
iommu_range_alloc and __iommu_free.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/iommu.c
===
--- linux-build.orig/arch/powerpc
improved 69% with this patch applied.
Signed-off-by: Anton Blanchard an...@samba.org
---
All patches combined improve performance by 178%
Index: linux-build/arch/powerpc/kernel/iommu.c
===
--- linux-build.orig/arch/powerpc/kernel
commit e57f93cc53b7 (powerpc: get rid of nlink_t uses, switch to
explicitly-sized type) changed the size of st_nlink on ppc64 from
a long to a short, resulting in boot failures.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/stat.h
Hi Stephen,
commit e57f93cc53b7 (powerpc: get rid of nlink_t uses, switch to
explicitly-sized type) changed the size of st_nlink on ppc64 from
a long to a short, resulting in boot failures.
Signed-off-by: Anton Blanchard an...@samba.org
Would this affect my (early user mode) boot
://ozlabs.org/~anton/junkcode/copy_to_user.c
# time ./copy_to_user2 -l 4224 -i 1000
before: 6.807 s
after: 6.946 s
A 2% slowdown, which seems reasonable considering our data is unlikely
to be completely L1 contained.
Signed-off-by: Anton Blanchard an...@samba.org
---
v2: Use cr1
(booting with brd.rd_size=1048576):
# mdadm -CR -e 1.2 /dev/md0 --level=6 -n4 /dev/ram[0-3]
I then timed how long it took to write to the entire array:
# dd if=/dev/zero of=/dev/md0 bs=1M
Before: 892 MB/s
After: 999 MB/s
A 12% improvement.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index
://ozlabs.org/~anton/junkcode/copy_to_user.c
# time ./copy_to_user2 -l 4224 -i 1000
before: 6.807 s
after: 6.946 s
A 2% slowdown, which seems reasonable considering our data is unlikely
to be completely L1 contained.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch
disabled this patch improves the
null system call by 7%.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/entry_64.S
===
--- linux-build.orig/arch/powerpc/kernel/entry_64.S 2012-05-28
18:23
.
This does complicate things a bit - we have to be careful to restore
RI if we branch out before returning to userspace.
On a POWER7 with virtual cputime disabled this patch improves the
null system call by 7%.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel
Subsequent patches will add more VMX library functions and it makes
sense to keep all the c-code helper functions in the one file.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/lib/Makefile
).
The following microbenchmark was used to assess the impact of
the patch:
http://ozlabs.org/~anton/junkcode/page_fault_file.c
We test MAP_PRIVATE page faults across a 1GB file, 100 times:
# time ./page_fault_file -p -l 1G -i 100
Before: 22.25s
After: 18.89s
17% faster
Signed-off-by: Anton Blanchard
=1
1048576 bytes (10 GB) copied, 3.72379 s, 2.8 GB/s
After:
# time dd if=/dev/zero of=/dev/null bs=1M count=1
1048576 bytes (10 GB) copied, 0.728318 s, 14.4 GB/s
Over 5x faster.
Signed-off-by: Anton Blanchard an...@samba.org
---
Interestingly, it picked up an issue with the old
:
stdx 3,11,9
lwz 0,8(29)
cmpwi 7,0,0
bne- 7,.L124
bl .irq_enter
CONFIG_JUMP_LABEL enabled:
stdx 3,11,9
nop
bl .irq_enter
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/configs/ppc64_defconfig
16 2890370e7 arch/powerpc/kernel/irq.o
6817 19019 16 2585264fc arch/powerpc/kernel/irq.o
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/trace.h
===
--- linux
Hi Ben,
So if I remember properly, this means you key off if both
CPU_FTR_NOEXECUTE and CPU_FTR_NODISRALIGN are clear... is
there a point ? You make the patch simpler by only keying
on NO_EXECUTE which afaik is a power4 or later only feature no ?
Was going to do that, but noticed ARCH_V2
option just do it at runtime via
a feature fixup.
Signed-off-by: Anton Blanchard an...@samba.org
---
v2: Use CPU_FTR_NOEXECUTE to select the newer mtocrf
Index: linux-build/arch/powerpc/configs/g5_defconfig
===
--- linux-build.orig
Hi Gavin,
The problem was reported by Anton Blanchard. While EEH error
happened to the PCI device without the corresponding device
driver, kernel crash was seen. Eventually, I successfully
reproduced the problem on Firebird-L machine with utility
errinjct. Initially, the device driver
-off-by: Anton Blanchard an...@samba.org
---
4.0 came out in 2005 and the gcc on RHEL5 and SLES10 looks to be 4.1.
I highly doubt a ppc64 kernel will build these days on either RHEL4 or
SLES9.
Anything else we have to worry about?
Index: linux-build/arch/powerpc/Makefile
Now we require gcc 4.0 on 64-bit we can remove the pre gcc 4.0
-maltivec workaround.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/Makefile
===
--- linux-build.orig/arch/powerpc/Makefile
Add a menu to select various 64-bit CPU targets for gcc. We
default to -mtune=power7 and if gcc doesn't understand that we
fallback to -mtune=power4.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/Makefile
option just do it at runtime via
a feature fixup.
I had to expose CPU_FTR_PPCAS_ARCH_V2 to assembly since I key off
that.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/configs/g5_defconfig
-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/platforms/pseries/eeh.c
===
--- linux-build.orig/arch/powerpc/platforms/pseries/eeh.c 2012-04-13
10:29:53.576534339 +1000
+++ linux-build/arch/powerpc/platforms
lets remove them.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/ptrace.h
===
--- linux-build.orig/arch/powerpc/include/asm/ptrace.h 2012-04-12
11:36:25.784215556 +1000
+++ linux-build
Use an empty inline instead of an empty function to implement
giveup_altivec on book3e CPUs, similar to flush_altivec_to_thread.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/switch_to.h
completes 5.2% faster on a POWER7 PS700.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/process.c
===
--- linux-build.orig/arch/powerpc/kernel/process.c 2012-04-16
11:35:19.0
Hi,
Thanks for the information. I'll try to reproduce the issue on
Firebird-L today. By the way, it seems that mstmread is some
user-level application accessing the config space while the problem
happened?
The EEH error is caused by the Melanox firmware tools.
It seems the crash was caused
Hi Gavin,
This series of patches is going to reorganize EEH so that it could
support multiple platforms in future. The requirements were raised
from the aspects.
I just hit this on mainline from today (3.4.0-rc2-00065-gf549e08).
Haven't had a chance to narrow it down yet.
Oops: Kernel
Hi,
I just hit this on mainline from today (3.4.0-rc2-00065-gf549e08).
Haven't had a chance to narrow it down yet.
Looking closer, it was caused by an EEH error at boot. It looks like
the Mellanox infiniband card gets an error when probed by their
firmware tool (mstmread), but only if the
We have a union containing fields from the old iseries hypervisor
that has been reused for the cede latency hint. Since we no
longer support iseries, remove the union completely.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/lppaca.h
Remove all the iseries specific fields in the lppaca.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/lppaca.h
===
--- linux-build.orig/arch/powerpc/include/asm/lppaca.h 2012-04-11
Reformat lppaca.h to match Linux coding standards.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/lppaca.h
===
--- linux-build.orig/arch/powerpc/include/asm/lppaca.h 2012-04-11
12
the crclr by doing it in a GPR with rlwinm which gives us more room
to better schedule the sequence.
Signed-off-by: Anton Blanchard an...@samba.org
---
v2:
Milton pointed out that rlwinm copies the low 32bits into the top
32bits and this might confuse ptracers. We tossed around a few ideas
but his
syscall_dotrace_cont and syscall_error_cont tend to complicate perf
output so make them local.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/entry_64.S
===
--- linux-build.orig/arch
The XER is a volatile register so there is no need to save and restore
it over a system call - zero it out in the exception stack frame
instead.
This should fix a 5 cycle stall of the mfxer/std seen on POWER7.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc
the crclr by doing it in a GPR with rlwinm which gives us more room
to better schedule the sequence.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/entry_64.S
===
--- linux-build.orig/arch
The count register is volatile so we don't need to preserve it.
Store zero to the entry in the exception frame.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/kernel/entry_64.S
===
--- linux
-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/include/asm/rtas.h
===
--- linux-build.orig/arch/powerpc/include/asm/rtas.h2012-03-22
11:46:57.408187770 +1100
+++ linux-build/arch/powerpc/include/asm
The RAS error interrupt is no longer used but we may as well
mirror the changes we made to the EPOW interrupt.
Signed-off-by: Anton Blanchard an...@samba.org
---
Index: linux-build/arch/powerpc/platforms/pseries/ras.c
===
--- linux
Hi,
I'm seeing this on a POWER7 blade booting 3.3.0-rc6-next-20120308:
PCI host bridge to bus :00
pci_bus :00: root bus resource [io 0x10-0x10] (bus address
[0xf-0xf])
pci_bus :00: root bus resource [mem 0x3b00-0x3b001fff] (bus
address
701 - 800 of 1164 matches
Mail list logo
