IG_STAGING.
>
> It sounds like the device is obsolete, so drop the driver.
>
> Signed-off-by: Michael Ellerman
Acked-by: Joel Stanley
ned-off-by: Michael Ellerman
Acked-by: Joel Stanley
.
>
> Similarly if we panic we should reboot, with a short timeout in case
> someone is watching the console.
>
> Signed-off-by: Michael Ellerman
Acked-by: Joel Stanley
> ---
> arch/powerpc/configs/skiroot_defconfig | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-
On Thu, 16 Jan 2020 at 01:48, Michael Ellerman wrote:
>
> Signed-off-by: Michael Ellerman
Acked-by: Joel Stanley
t; SLAB_FREELIST_RANDOM, and SLUB_DEBUG_ON will add some overhead to the
> SLAB allocator, but nothing that should be meaningful for skiroot.
>
> Signed-off-by: Michael Ellerman
Acked-by: Joel Stanley
> ---
> arch/powerpc/configs/skiroot_defconfig | 8
> 1 file ch
This turns on HARDENED_USERCOPY with HARDENED_USERCOPY_PAGESPAN, and
FORTIFY_SOURCE.
It also enables SECURITY_LOCKDOWN_LSM with _EARLY and
LOCK_DOWN_KERNEL_FORCE_CONFIDENTIALITY options enabled.
MODULE_SIG is selected by lockdown, so it is still enabled.
Signed-off-by: Joel Stanley
---
arch
ell Currey
Acked-by: Joel Stanley
> ---
> arch/powerpc/configs/skiroot_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/powerpc/configs/skiroot_defconfig
> b/arch/powerpc/configs/skiroot_defconfig
> index 1253482a67c0..719d899081b3 100644
> --
Often the firmware will guard out cores after a crash. This often
undesirable, and is not immediately noticeable.
This adds an informative message when a CPU device tree nodes are marked
bad in the device tree.
Signed-off-by: Joel Stanley
---
Tested on qemu 4.1 with this patch applied:
https
et the reserved bits of the PCR as required.
>
> Acked-by: Alistair Popple
> Signed-off-by: Jordan Niethe
Tested-by: Joel Stanley
I gave a powernv_defconfig build a spin in a qemu powernv machine.
Cheers,
Joel
]
if (!no_nospec && !cpu_mitigations_off())
^~~
Fixes: 782e69efb3df ("powerpc/speculation: Support 'mitigations=' cmdline
option")
Signed-off-by: Joel Stanley
---
This should be applied to the 4.14 and 4.19 trees. There is no issue
wi
On Thu, 2 May 2019 at 07:42, Russell Currey wrote:
>
> Implement code to walk all pages and warn if any are found to be both
> writable and executable. Depends on STRICT_KERNEL_RWX enabled, and is
> behind the DEBUG_WX config option.
>
> This only runs on boot and has no runtime performance
: Michael Ellerman
Reviewed-by: Joel Stanley
> ---
> arch/powerpc/kernel/security.c | 8
> 1 file changed, 8 insertions(+)
>
> diff --git a/arch/powerpc/kernel/security.c b/arch/powerpc/kernel/security.c
> index b33bafb8fcea..d6ba696d0ed0 100644
> --- a/arch/powerpc
On Fri, 29 Mar 2019 at 09:53, Segher Boessenkool
wrote:
>
> Hi!
>
> On Fri, Mar 29, 2019 at 05:14:53PM +1030, Joel Stanley wrote:
> > - NOTES :kernel :notes
> > + NOTES
>
> I think this still need to be
>
> NOTES :kernel
>
> or the l
It turns out that some defconfig changes and kernel config option
changes meant we accidentally dropped Ethernet support for Mellanox CLX5
cards.
Reported-by: Carol L Soto
Suggested-by: Carol L Soto
Signed-off-by: Stewart Smith
Signed-off-by: Joel Stanley
---
arch/powerpc/configs
Those not of us not drowning in POWER might not know what this means.
Signed-off-by: Joel Stanley
---
Documentation/powerpc/DAWR-POWER9.txt | 8
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/Documentation/powerpc/DAWR-POWER9.txt
b/Documentation/powerpc/DAWR-POWER9.txt
au/
for the discussion.
Signed-off-by: Joel Stanley
---
v2: Fix ppc64_defconfig by keeping kernel PHDRS
Segher, Christophe, I did my best but to summarise your conversation.
Please suggest corrections or additions to the commit message if you
have any.
---
arch/powerpc/ker
Segher added some workarounds for GCC 4.2 and bintuils 2.18. We now set
4.6 and 2.20 as the minimum, so they can be dropped.
This is mostly a revert of c6995fe4 ("powerpc: Fix build bug with
binutils < 2.18 and GCC < 4.2").
Signed-off-by: Joel Stanley
---
arch/powerpc/kern
This updates the skiroot defconfig with the version from the OpenPower
firmwre build tree.
Important changes are the addition of QED and E1000E ethernet drivers.
Signed-off-by: Joel Stanley
---
Generated on top of next-20190304
arch/powerpc/configs/skiroot_defconfig | 11 +--
1 file
to get the keyboard working in the graphical console there again,
> we should now include XHCI support in the kernel by default, too.
>
> Signed-off-by: Thomas Huth
Acked-by: Joel Stanley
> ---
> arch/powerpc/configs/pseries_defconfig | 1 +
> 1 file changed, 1 insertion(+)
>
> diff
This converts the powernv flash driver to use SPDX, and adds some
clarifying comments that came out of a discussion on how the mtd driver
works.
Signed-off-by: Joel Stanley
---
drivers/mtd/devices/powernv_flash.c | 20 ++--
1 file changed, 10 insertions(+), 10 deletions(-)
diff
In the ld documentation under Builtin Functions:
BLOCK(exp)
This is a synonym for ALIGN, for compatibility with older linker scripts.
Clang's linker (lld) doesn't know about BLOCK so remove this use of it.
Link: https://github.com/ClangBuiltLinux/linux/issues/253
Signed-off-by: Joel
From: Daniel Axtens
All 64-bit objects need to specify the flag to be compiled correctly, we
just don't need it for 32-bit objects. GCC just ignored it, but clang
doesn't.
Link: https://github.com/ClangBuiltLinux/linux/issues/240
Signed-off-by: Daniel Axtens
Signed-off-by: Joel Stanley
Hello,
I was booting next-20181213 in qemu with lockdep enabled and saw this:
spin_lock-torture:--- Start of test [debug]: nwriters_stress=2
nreaders_stress=0 stat_interval=60 verbose=1 shuffle_interval=3
stutter=5 shutdown_secs=0 onoff_interval=0 onoff_holdoff=0
spin_lock-torture: Creating
Signed-off-by: Joel Stanley
---
v2: Discard instead of keep. Alan said "[discarding] can be a recipe for
finding linker bugs", so lets go with that.
---
arch/powerpc/kernel/vmlinux.lds.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/vmlinux.l
Alan Modra explains:
> Likely you could discard .interp > and .dynstr too, and .dynsym when
> !CONFIG_PPC32.
Discarding of interp and dynstr happened in a previous patch. The dynsym
cleanup was a bit less straightforward, so it gets it's own patch.
Signed-off-by: Joel Stanley
---
S
lookup. I imagine you don't need either section in a kernel, so
> discarding both sounds reasonable. Likely you could discard .interp
> and .dynstr too, and .dynsym when !CONFIG_PPC32.
Reported-by: Stephen Rothwell
Signed-off-by: Joel Stanley
---
See
https://lore.kernel.org/lkml/CACPK8X
v3 fixes up the splitting of the patches, moving the dynstr hunk from
patch 2 to patch 1.
v2 pulls in the branch_lt patch too. No changes to the first two
patches.
Joel Stanley (3):
powerpc: Discard more sections in linker script
powerpc: Discard dynsym section for !PPC32
powerpc: Discard
On Wed, 5 Dec 2018 at 04:11, Segher Boessenkool
wrote:
>
> On Tue, Dec 04, 2018 at 11:24:28AM +1030, Joel Stanley wrote:
> > Alan Modra explains:
> >
> > > Likely you could discard .interp > and .dynstr too, and .dynsym when
> > > !CONFIG_PPC32.
> >
Signed-off-by: Joel Stanley
---
v2: Discard instead of keep. Alan said "[discarding] can be a recipe for
finding linker bugs", so lets go with that.
---
arch/powerpc/kernel/vmlinux.lds.S | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/kernel/vmlinux.l
Alan Modra explains:
> Likely you could discard .interp > and .dynstr too, and .dynsym when
> !CONFIG_PPC32.
Discarding of interp and dynstr happened in a previous patch. The dynsym
cleanup was a bit less straightforward, so it gets it's own patch.
Signed-off-by: Joel Stanley
---
S
lookup. I imagine you don't need either section in a kernel, so
> discarding both sounds reasonable. Likely you could discard .interp
> and .dynstr too, and .dynsym when !CONFIG_PPC32.
Reported-by: Stephen Rothwell
Signed-off-by: Joel Stanley
---
See
https://lore.kernel.org/lkml/CACPK8X
v2 pulls in the branch_lt patch too. No changes to the first two
patches.
Joel Stanley (3):
powerpc: Discard more sections in linker script
powerpc: Discard dynsym section for !PPC32
powerpc: Discard .branch_lt section
arch/powerpc/kernel/vmlinux.lds.S | 15 +--
1 file changed
Alan Modra explains:
> Likely you could discard .interp > and .dynstr too, and .dynsym when
> !CONFIG_PPC32.
Discarding of interp and dynstr happened in a previous patch. The dynsym
cleanup was a bit less straightforward, so it gets it's own patch.
Signed-off-by: Joel Stanley
---
S
lookup. I imagine you don't need either section in a kernel, so
> discarding both sounds reasonable. Likely you could discard .interp
> and .dynstr too, and .dynsym when !CONFIG_PPC32.
Reported-by: Stephen Rothwell
Signed-off-by: Joel Stanley
---
See
https://lore.kernel.org/lkml/CACPK8X
Joel Stanley (2):
powerpc: Discard more sections in linker script
powerpc: Discard dynsym section for !PPC32
arch/powerpc/kernel/vmlinux.lds.S | 13 -
1 file changed, 8 insertions(+), 5 deletions(-)
--
2.19.1
On Sun, 18 Nov 2018 at 21:52, Alan Modra wrote:
>
> On Wed, Nov 14, 2018 at 09:20:23PM +1100, Michael Ellerman wrote:
> > Joel Stanley writes:
> > > Hello Alan,
> > >
> > > On Tue, 12 Jun 2018 at 07:44, Stephen Rothwell
> > > wrote:
> > &
260
Signed-off-by: Joel Stanley
---
v1:
https://lore.kernel.org/linuxppc-dev/20181102033713.31916-1-j...@jms.id.au/
v2:
Instead of setting the -fheinous-gnu-extensions for clang, fix the code.
v3:
Sync with GCC version instead of GMP version
---
arch/powerpc/include/asm/sfp-mach
On Tue, 4 Dec 2018 at 05:15, Nick Desaulniers wrote:
> > > > +ifdef CONFIG_CC_IS_CLANG
> > > > +# clang ppc port does not yet support -maltivec when -msoft-float is
> > > > +# enabled. A future release of clang will resolve this
> > > > +# https://bugs.llvm.org/show_bug.cgi?id=31177
> > > >
On Sat, 3 Nov 2018 at 04:04, Nick Desaulniers wrote:
>
> On Thu, Nov 1, 2018 at 5:45 PM Joel Stanley wrote:
> >
> > We cannot build these files with clang as it does not allow altivec
> > instructions in assembly when -msoft-float is passed.
> >
> > Jinsong J
On Tue, 20 Nov 2018 at 05:24, Nick Desaulniers wrote:
> >
> > The only functional change I noticed was this in udiv_qrnnd.
> >
> > __r1 = (n1) % __d1;
> > __q1 = (n1) / __d1;
> >
> > Becomes this:
> >
> > __q1 = (n1) / __d1;
> > __r1 = (n1) - __q1 * __d1;
> >
> > This is
On Wed, 14 Nov 2018 at 16:50, Oliver O'Halloran wrote:
>
> CONFIG_PCI_MSI was made mandatory by commit a311e738b6d8
> ("powerpc/powernv: Make PCI non-optional") so the #ifdef
> checks around CONFIG_PCI_MSI here can be removed entirely.
>
> Signed-off-by: Oliver O'
Hello Alan,
On Tue, 12 Jun 2018 at 07:44, Stephen Rothwell wrote:
> Building Linus' tree, today's linux-next build (powerpc ppc64_defconfig)
> produced these warning:
>
> ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in
> section `.gnu.hash'.
> ld: warning: orphan
local
symbols")[1], 32 bit targets can produce .branch_lt sections in their
output.
Include these symbols in the .data section as the ppc64 kernel does.
[1]
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=2d7ad24e8726ba4c45c9e67be08223a146a837ce
Signed-off-by: Joel Stan
BuiltLinux/linux/issues/260
Signed-off-by: Joel Stanley
---
v1:
https://lore.kernel.org/linuxppc-dev/20181102033713.31916-1-j...@jms.id.au/
v2:
Instead of setting the -fheinous-gnu-extensions for clang, fix the code.
arch/powerpc/include/asm/sfp-machine.h | 99 +-
1 file c
On Sat, 3 Nov 2018 at 03:24, Nick Desaulniers wrote:
>
> On Thu, Nov 1, 2018 at 8:37 PM Joel Stanley wrote:
> >
> > make CC=clang-8 ARCH=powerpc CROSS_COMPILE=powerpc-linux-gnu-
> > ppc44x_defconfig
> > make CC=clang-8 ARCH=powerpc C
id=39556
Link: https://bugs.llvm.org/show_bug.cgi?id=39555
Signed-off-by: Joel Stanley
---
arch/powerpc/Makefile | 9 -
1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 8a2ce14d68d0..4685671dfb4f 100644
--- a/arch/powerpc/Makefi
On Mon, 12 Nov 2018 at 13:59, Masahiro Yamada
wrote:
>
> On Mon, Nov 12, 2018 at 10:05 AM Michael Ellerman wrote:
> >
> > Masahiro Yamada writes:
> > > On Sat, Nov 10, 2018 at 3:35 AM Greg Hackmann
> > > wrote:
> > >>
> > >> On 11/09/2018 10:29 AM, Nick Desaulniers wrote:
> > >> > On Mon, Nov
Clang needs to be told which target it is building for when cross
compiling.
Link: https://github.com/ClangBuiltLinux/linux/issues/259
Signed-off-by: Joel Stanley
---
arch/powerpc/boot/Makefile | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc
The powerpc makefile will use these in it's boot wrapper.
Signed-off-by: Joel Stanley
---
Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/Makefile b/Makefile
index 09278330282d..840efe6eb54c 100644
--- a/Makefile
+++ b/Makefile
@@ -495,6 +495,7 @@ endif
ifneq ($(GCC_TOOLCHAIN
with clang and with this patch it
can cross compile too.
Joel Stanley (2):
Makefile: Export clang toolchain variables
powerpc/boot: Set target when cross-compiling for clang
Makefile | 1 +
arch/powerpc/boot/Makefile | 5 +
2 files changed, 6 insertions(+)
--
2.19.1
On Tue, 6 Nov 2018 at 09:07, Nick Desaulniers wrote:
>
> On Sun, Nov 4, 2018 at 3:11 PM Joel Stanley wrote:
> >
> > Hello,
> >
> > These patches allow clang to cross-compile the powerpc boot wrapper.
> > The boot wrapper constructs it's own compiler flags as
On Mon, 5 Nov 2018 at 14:18, Michael Ellerman wrote:
> > I considered putting these behind a cc-option test. If someone has an
> > opinion on that I'm happy to change.
> > -CFLAGS-$(CONFIG_PPC32) := -ffixed-r2 $(MULTIPLEWORD)
> > +ifndef CONFIG_CC_IS_CLANG
> > +#CFLAGS-$(CONFIG_PPC32)
Clang needs to be told which target it is building for when cross
compiling.
Link: https://github.com/ClangBuiltLinux/linux/issues/259
Signed-off-by: Joel Stanley
---
arch/powerpc/boot/Makefile | 7 +++
1 file changed, 7 insertions(+)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc
The powerpc makefile will use these in it's boot wrapper.
Signed-off-by: Joel Stanley
---
Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/Makefile b/Makefile
index 9aa352b38815..a2db3c885b38 100644
--- a/Makefile
+++ b/Makefile
@@ -495,6 +495,9 @@ endif
ifneq ($(GCC_TOOLCHAIN
Hello,
These patches allow clang to cross-compile the powerpc boot wrapper.
The boot wrapper constructs it's own compiler flags as it may not be
built for the same arch as the kernel.
The powerpc64le kernel builds natively with clang and with this patch it
can cross compile too.
Joel Stanley (2
On Fri, 2 Nov 2018 at 15:09, Joel Stanley wrote:
>
> When building for ppc32 with clang these flags are unsupported:
>
> -ffixed-r2 and -mmultiple
>
> llvm's lib/Target/PowerPC/PPCRegisterInfo.cpp marks r2 as reserved on
> when building for SVR4ABI and !ppc64:
>
>
pty -append "console=ttyS0"
Link: https://github.com/ClangBuiltLinux/linux/issues/261
Signed-off-by: Joel Stanley
---
I considered putting these behind a cc-option test. If someone has an
opinion on that I'm happy to change.
arch/powerpc/Makefile | 4 +++-
1 file changed, 3 insertions(+
(R##_f1, R##_f0, X##_f1, X##_f0, Y##_f1, Y##_f0)
^~~
Link: https://github.com/ClangBuiltLinux/linux/issues/260
Signed-off-by: Joel Stanley
---
arch/powerpc/math-emu/Makefile | 4
1 file changed, 4 insertions(+)
diff --git
k: https://bugs.llvm.org/show_bug.cgi?id=31177
Link: https://github.com/ClangBuiltLinux/linux/issues/239
Signed-off-by: Joel Stanley
---
v2: fix typo in comment, thanks Jinsong
lib/raid6/Makefile | 15 +++
1 file changed, 15 insertions(+)
diff --git a/lib/raid6/Makefile b/lib/raid6/Mak
k: https://bugs.llvm.org/show_bug.cgi?id=31177
Link: https://github.com/ClangBuiltLinux/linux/issues/239
Signed-off-by: Joel Stanley
---
lib/raid6/Makefile | 15 +++
1 file changed, 15 insertions(+)
diff --git a/lib/raid6/Makefile b/lib/raid6/Makefile
index 2f8b61dfd9b0..3a844e6fd01
strings on the stack.
While this issue is investigated, bump up the frame size limit for xmon
when building with clang.
Link: https://github.com/ClangBuiltLinux/linux/issues/252
Signed-off-by: Joel Stanley
---
arch/powerpc/xmon/Makefile | 6 ++
1 file changed, 6 insertions(+)
diff --git
_IS_CLANG, instead.
Thanks, I didn't know about this.
>
> Signed-off-by: Masahiro Yamada
> Acked-by: Michael Ellerman (powerpc)
Acked-by: Joel Stanley
Cheers,
Joel
en rfi_flush is enabled, we allow ~1% lower number of cache misses.
>
> Reported-by: Joel Stanley
> Signed-off-by: Naveen N. Rao
Thanks, this now passes 10/10 runs on my Romulus machine. A log is
attached below.
Tested-by: Joel Stanley
Cheers,
Joel
---
for i in `seq 1 10`; do sud
it to be always off instead.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/pmu/ebb/Makefile | 3 +++
1 file changed, 3 insertions(+)
diff --git a/tools/testing/selftests/powerpc/pmu/ebb/Makefile
b/tools/testing/selftests/powerpc/pmu/ebb/Makefile
index bd5dfa509272..23f4caf48ffc
signal_tm tries to build with -mhtm but it currently does not.
The targets is modified in lib.mk to add the $(OUTPUT) prefix. The
makefile needs to specify that modifying the rules, or else it does
not match and we miss out on the extra flag.
Signed-off-by: Joel Stanley
---
tools/testing
According to lib.mk, TEST_PROGS is for shell scripts. It appears we need
to define the programs as TEST_GEN_PROGS to ensure they are built.
The definition must also happen below the inclusion of lib.mk.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/signal/Makefile | 7
that modifying those rules, or
else they do not match and we miss out on the extra flags.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/ptrace/Makefile | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile
b/tools
in
lib.mk.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/ptrace/Makefile | 3 ---
1 file changed, 3 deletions(-)
diff --git a/tools/testing/selftests/powerpc/ptrace/Makefile
b/tools/testing/selftests/powerpc/ptrace/Makefile
index e9a3850aae86..58de6d4a0cf4 100644
--- a/tools
According to lib.mk, TEST_PROGS is for shell scripts. It appears we need
to define the programs as TEST_GEN_PROGS to ensure they are built.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/ptrace/Makefile | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git
This series fixes issues I encountered building and running the
selftests on a Ubuntu Cosmic ppc64le system.
Joel Stanley (6):
selftests: powerpc/ptrace: Make tests build
selftests: powerpc/ptrace: Remove clean rule
selftests: powerpc/ptrace: Fix linking against pthread
selftests: powerpc
.
Note that the test program is still built.
Signed-off-by: Joel Stanley
---
tools/testing/selftests/powerpc/security/Makefile | 1 +
1 file changed, 1 insertion(+)
diff --git a/tools/testing/selftests/powerpc/security/Makefile
b/tools/testing/selftests/powerpc/security/Makefile
index
means we don't need to save the extra stack space and can use
the common SWITCH_FRAME_SIZE.
There were already no users of _SRR0 and _SRR1 so we can remove them
too.
Link: https://github.com/linuxppc/linux/issues/83
Signed-off-by: Joel Stanley
---
arch/powerpc/kernel/asm-offsets.c | 9 -
the table than
> other mnemonics, so they'll be seen/chosen first
By explicitly setting -many we can build with Clang and GCC while
retaining the -mpower4 option.
Signed-off-by: Joel Stanley
---
Following up on:
https://lore.kernel.org/linuxppc-dev/20180914040649.1794-2-j..
On Thu, 11 Oct 2018 at 10:32, Michael Ellerman wrote:
>
> Michael Ellerman writes:
> > Joel Stanley writes:
> >> diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
> >> index 0fb96c26136f..eeed74e0dfca 100644
> >> --- a/arch/powerpc/boo
On Wed, 10 Oct 2018 at 22:41, Michael Ellerman wrote:
>
> Joel Stanley writes:
>
> > This will avoid auto-vectorisation when building with higher
> > optimisation levels.
> >
> > We don't know if the machine can support VSX and even if it's present
> >
from Os. Comparing zImage.epapr
to the existing Os build using bloat-o-meter:
Before=43401, After=56837 (13KB), chg +30.96%
Before=43401, After=64305 (20KB), chg +48.16%
I chose O2 for a balance between Qemu and hardware speed up.
Signed-off-by: Joel Stanley
---
arch/powerpc/boot/Makefile | 2
This will avoid auto-vectorisation when building with higher
optimisation levels.
We don't know if the machine can support VSX and even if it's present
it's probably not going to be enabled at this point in boot.
Signed-off-by: Joel Stanley
---
arch/powerpc/boot/Makefile | 4 ++--
1 file
We currently build the wrapper with Os. This builds it with O2 instead,
reducing boot time when decompressing a compressed kernel. See patch
2 for details.
I've given this a spin with CONFIG_KERNEL_XZ on P9 and P8 as the
petitboot kernel.
Joel Stanley (2):
powerpc/boot: Disable vector
("powerpc/boot:
Only build OPAL code when necessary") the makefile only includes opal.c
in the build if CONFIG_PPC64_BOOT_WRAPPER is set.
Fixes: 10c77dba40ff ("powerpc/boot: Fix build failure in 32-bit boot wrapper")
Signed-off-by: Joel Stanley
---
I wrote this patch before
to depend on configuration options.
Fixes: 866bfc75f40e ("powerpc: conditionally compile platform-specific serial
drivers")
Signed-off-by: Joel Stanley
---
arch/powerpc/boot/.gitignore | 1 +
arch/powerpc/boot/Makefile | 7 ++-
arch/powerpc/boot/serial.c | 1 +
3 files changed, 8
.
Joel Stanley (2):
powerpc/boot: Expose Kconfig symbols to wrapper
powerpc/boot: Fix opal console in boot wrapper
arch/powerpc/boot/.gitignore | 1 +
arch/powerpc/boot/Makefile | 7 ++-
arch/powerpc/boot/opal.c | 8
arch/powerpc/boot/serial.c | 1 +
4 files changed, 8
support registered
[5.996569] nest_mba0_imc performance monitor hardware support registered
[5.996631] nest_mba1_imc performance monitor hardware support registered
[5.996685] nest_mba2_imc performance monitor hardware support registered
Signed-off-by: Joel Stanley
---
v2: patch
support registered
[5.996569] nest_mba0_imc performance monitor hardware support registered
[5.996631] nest_mba1_imc performance monitor hardware support registered
[5.996685] nest_mba2_imc performance monitor hardware support registered
Signed-off-by: Joel Stanley
---
arch/powerpc
er.
Fixes: faa16bc404d72a5 ("lib: Use existing define with polynomial")
Reported-by: Meelis Roos
Reported-by: kbuild test robot
Suggested-by: Christophe LEROY
Signed-off-by: Joel Stanley
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lib/xz/xz_crc32.c | 1 -
lib/xz/xz_private.h | 4
2 files changed, 4 insertions(+), 1 del
On Wed, 19 Sep 2018 at 16:09, Krzysztof Kozlowski wrote:
>
> On Wed, 19 Sep 2018 at 01:08, Joel Stanley wrote:
> >
> > This partially reverts faa16bc404d72a5 ("lib: Use existing define with
> > polynomial").
> >
> > The cleanup added a depend
On Sat, 15 Sep 2018 at 03:11, Nick Desaulniers wrote:
>
> On Thu, Sep 13, 2018 at 9:07 PM Joel Stanley wrote:
> >
> > From: Anton Blanchard
> >
> > Commit 15a3204d24a3 ("powerpc/64s: Set assembler machine type to POWER4")
> > passes -mpower4 to t
On Sat, 15 Sep 2018 at 03:27, Nick Desaulniers wrote:
>
> On Thu, Sep 13, 2018 at 9:07 PM Joel Stanley wrote:
> >
> > From: Anton Blanchard
> >
> > This re-applies b91c1e3e7a6f which was reverted in f2ca80905929
> > d466f6c5cac1 f84ed59a612d (powerpc/
iry corner of the kernel. Even while building
a 64-bit kernel it needs to build a 32-bit binary and therefore avoid including
files from include/linux.
Fixes: faa16bc404d7 ("lib: Use existing define with polynomial")
Signed-off-by: Joel Stanley
---
We need to clean up the powerpc boot decomp
Hey Christophe,
On Tue, 18 Sep 2018 at 15:13, Christophe Leroy wrote:
>
> Since commit cafa0010cd51 ("Raise the minimum required gcc version
> to 4.6"), it is not possible to build kernel with GCC lower than 4.6
>
> This patch removes checkbin tests addressing older versions of GCC.
This is the
etc. will fail in the skiroot environment.
This defconfig gets us build coverage of KERNEL_XZ, which was broken in
the 4.19 merge window for powerpc.
Signed-off-by: Joel Stanley
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v2: re-sync with version used in op-build
---
arch/powerpc/configs/skiroot_defconfig | 154
On Tue, 18 Sep 2018 at 06:11, Nick Desaulniers wrote:
>
> On Fri, Sep 14, 2018 at 2:08 PM Segher Boessenkool
> wrote:
> >
> > On Fri, Sep 14, 2018 at 10:47:08AM -0700, Nick Desaulniers wrote:
> > > On Thu, Sep 13, 2018 at 9:07 PM Joel Stanley wrote:
> > >
*, long);
^
This *is* the header and we're not using the built-in setjump but
rather the one in arch/powerpc/kernel/misc.S. As the compiler warning
does not make sense, it for the files where setjmp is used.
Signed-off-by: Joel Stanley
---
We could instead disable this for all
On Sat, 15 Sep 2018 at 01:03, Nicholas Piggin wrote:
>
> This causes SLB alloation to start 1 beyond the start of the SLB.
> There is no real problem because after it wraps it stats behaving
starts?
> properly, it's just surprisig to see when looking at SLB traces.
surprising
>
>
remove the need for kbuf_sz, thus removing the variable length array.
>
> Signed-off-by: Suraj Jitindar Singh
Reviewed-by: Joel Stanley
rray of constant length 8.
>
> This property is used to indicate the supported options of vector 5
> bytes 23-26 of the ibm,architecture.vec node. Each of these options
> is a pair of bytes, thus for 4 options we have a max length of 8 bytes.
>
> Signed-off-by: Suraj Jitindar Singh
Reviewed-by: Joel Stanley
On Fri, 14 Sep 2018 at 14:39, Nicholas Piggin wrote:
>
> Signed-off-by: Nicholas Piggin
Reviewed-by: Joel Stanley
I gave this a spin with clang trunk on the powernv kernel and it did
the trick. Thanks!
mpe, this series supersedes [v2,5/5] powerpc: Remove -mno-sched-epilog
On Fri, 14 Sep 2018 at 14:39, Nicholas Piggin wrote:
>
> Signed-off-by: Nicholas Piggin
Reviewed-by: Joel Stanley
On Fri, 14 Sep 2018 at 14:39, Nicholas Piggin wrote:
>
> GCC 4.6 is the minimum supported now.
>
> Signed-off-by: Nicholas Piggin
Reviewed-by: Joel Stanley
C versions, with
GCC 4.6 now being the minimum.
[1] https://bugzilla.kernel.org/show_bug.cgi?id=11414
Signed-off-by: Joel Stanley
---
Last time this was proposed there was an issue reported:
https://lists.ozlabs.org/pipermail/linuxppc-dev/2014-September/121214.html
If some machines still have an
code generation.
Signed-off-by: Anton Blanchard
Signed-off-by: Joel Stanley
---
If we don't want to apply this, other options are suppressing the
warning, or wait for a fix to land in clang
(https://github.com/ClangBuiltLinux/linux/issues/52).
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arch/powerpc/include/asm/uaccess.h | 6 +++---
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