This is a note to let you know that I've just added the patch titled
powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
to the 5.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
Euh ... That's a duplicate of [PATCH 2/4] "powerpc/64: remove support
for kernel-mode syscalls" ?
Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
There is support for the kernel to execute the 'sc 0' instruction and
make a system call to itself. This is a relic that is unused in the
tree,
Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
There is support for the kernel to execute the 'sc 0' instruction and
make a system call to itself. This is a relic that is unused in the
tree, therefore untested. It's also highly questionable for modules to
be doing this.
I like it.
I
This is a note to let you know that I've just added the patch titled
powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
This is a note to let you know that I've just added the patch titled
powerpc: Allow flush_(inval_)dcache_range to work across ranges >4GB
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the
On Tue, 2019-08-27 at 08:28 +0200, Michal Hocko wrote:
> On Tue 27-08-19 15:20:46, Alastair D'Silva wrote:
> > From: Alastair D'Silva
> >
> > It is possible for firmware to allocate memory ranges outside
> > the range of physical memory that we support (MAX_PHYSMEM_BITS).
>
> Doesn't that count
Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
System call entry and particularly exit code is beyond the limit of what
is reasonable to implement in asm.
This conversion moves all conditional branches out of the asm code,
except a relatively simple test to see whether all GPRs should be
On 27/08/19 8:49 AM, Michael Ellerman wrote:
> Hari Bathini writes:
>> On 26/08/19 4:14 PM, Sourabh Jain wrote:
>>> On 8/26/19 3:46 PM, Sourabh Jain wrote:
On 8/26/19 3:29 PM, Hari Bathini wrote:
> On 10/08/19 11:29 PM, Sourabh Jain wrote:
>> Add a sys interface to allow querying
Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
Commit 3033f14ab78c3 ("clone: support passing tls argument via C rather
than pt_regs magic") introduced the HAVE_COPY_THREAD_TLS option. Use it
to avoid a subtle assumption about the argument ordering of clone type
syscalls.
Signed-off-by:
On Tue 27-08-19 15:20:46, Alastair D'Silva wrote:
> From: Alastair D'Silva
>
> It is possible for firmware to allocate memory ranges outside
> the range of physical memory that we support (MAX_PHYSMEM_BITS).
Doesn't that count as a FW bug? Do you have any evidence of that in the
field? Just
On Mon, Aug 26, 2019 at 10:08:26PM +0200, Christophe Leroy wrote:
>
>
> Le 26/08/2019 à 18:50, Greg Kroah-Hartman a écrit :
> > On Wed, Aug 21, 2019 at 10:19:27AM +1000, Alastair D'Silva wrote:
> > > From: Alastair D'Silva
> > >
> > > The upstream commit:
> > > 22e9c88d486a ("powerpc/64: reuse
On 27.08.19 08:39, Alastair D'Silva wrote:
> On Tue, 2019-08-27 at 08:28 +0200, Michal Hocko wrote:
>> On Tue 27-08-19 15:20:46, Alastair D'Silva wrote:
>>> From: Alastair D'Silva
>>>
>>> It is possible for firmware to allocate memory ranges outside
>>> the range of physical memory that we
On Tue, 2019-08-27 at 11:55 -0400, Shengjiu Wang wrote:
> This platform device is registered from "fsl_audmix", which is
> its parent device. If use pdev->dev.parent for the priv->card.dev,
> the value set by dev_set_drvdata in parent device will be covered
> by the value in child device.
>
>
Hi Christoph,
On Mon, Aug 26, 2019 at 03:25:53PM +0200, Christoph Hellwig wrote:
> Based on an email from Paul Burton, quoting section 4.8 "Cacheability and
> Coherency Attributes and Access Types" of "MIPS Architecture Volume 1:
> Introduction to the MIPS32 Architecture" (MD00080, revision
On Tue, Aug 27, 2019 at 01:30:09PM +1000, Nicholas Piggin wrote:
> -435 nospu clone3 ppc_clone3
> +435 32 clone3 ppc_clone3
> sys_clone3
> +435 64 clone3 sys_clone3
> +435 nospu
Abhishek Goel's on August 23, 2019 5:09 pm:
> Background
> --
>
> Previously if a older kernel runs on a newer firmware, it may enable
> all available states irrespective of its capability of handling it.
> Consider a case that some stop state has a bug, we end up disabling all
>
On Tue 27-08-19 16:39:56, Alastair D'Silva wrote:
> On Tue, 2019-08-27 at 08:28 +0200, Michal Hocko wrote:
> > On Tue 27-08-19 15:20:46, Alastair D'Silva wrote:
> > > From: Alastair D'Silva
> > >
> > > It is possible for firmware to allocate memory ranges outside
> > > the range of physical
Most 8xx registers have specific names, so just include
reg_8xx.h all the time in reg.h in order to have them defined
even when CONFIG_PPC_8xx is not selected. This will avoid
the need for #ifdefs in C code.
Guard SPRN_ICTRL in an #ifdef CONFIG_PPC_8xx as this register
has same name but different
Ganesh Goudar's on August 22, 2019 4:31 pm:
> Die or panic path in system reset handler dumps kernel log to
> nvram, since commit 4388c9b3a6ee ("powerpc: Do not send system
> reset request through the oops path") system reset request is
> not allowed to take die path if fadump or kdump is
On Wed, Aug 21, 2019 at 10:19:27AM +1000, Alastair D'Silva wrote:
> From: Alastair D'Silva
>
> The upstream commit:
> 22e9c88d486a ("powerpc/64: reuse PPC32 static inline flush_dcache_range()")
> has a similar effect, but since it is a rewrite of the assembler to C, is
> too invasive for stable.
Christophe Leroy's on August 20, 2019 5:44 pm:
> Hi Nick,
>
> Le 10/06/2019 à 05:08, Nicholas Piggin a écrit :
>> __ioremap_at error handling is wonky, it requires caller to clean up
>> after it. Implement a helper that does the map and error cleanup and
>> remove the requirement from the caller.
Christophe Leroy's on August 27, 2019 4:46 pm:
>
>
> Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
>> System call entry and particularly exit code is beyond the limit of what
>> is reasonable to implement in asm.
>>
>> This conversion moves all conditional branches out of the asm code,
>>
On 26/08/2019 11:10, David Hildenbrand wrote:
The zone parameter is no longer in use. Replace it with the nid, which
we can now use the nid to limit the number of zones we have to process
(vie for_each_zone_nid()). The function signature of __remove_pages() now
looks much more similar to the one
During kexec boot, metadata address needs to be reset to avoid running
into errors interpreting stale metadata address, in case the kexec'ed
kernel crashes before metadata address could be setup again.
Signed-off-by: Hari Bathini
---
* Added check in fadump_cleanup() function for whether FADump
Commit <684d984038aa> ('powerpc/powernv: Add debugfs interface for imc-mode
and imc') added debugfs interface for the nest imc pmu devices to support
changing of different ucode modes. Primarily adding this capability for
debug. But when doing so, the code did not consider the case of cpu-less
Christophe Leroy's on August 27, 2019 4:14 pm:
> Euh ... That's a duplicate of [PATCH 2/4] "powerpc/64: remove support
> for kernel-mode syscalls" ?
Yeah sorry I changed the title and got myself confused.
Thanks,
Nick
On 20/08/19 5:35 PM, Hari Bathini wrote:
> During kexec boot, metadata address needs to be reset to avoid running
> into errors interpreting stale metadata address, in case the kexec'ed
> kernel crashes before metadata address could be setup again.
>
> Signed-off-by: Hari Bathini
> ---
>
From: Markus Elfring
Date: Tue, 27 Aug 2019 14:33:21 +0200
Two update suggestions were taken into account
from static source code analysis.
Markus Elfring (2):
Delete an unnecessary kfree() call
Delete an error message for a failed string duplication
arch/powerpc/platforms/pseries/dlpar.c
Christophe Leroy's on August 27, 2019 4:07 pm:
>
>
> Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
>> Commit 3033f14ab78c3 ("clone: support passing tls argument via C rather
>> than pt_regs magic") introduced the HAVE_COPY_THREAD_TLS option. Use it
>> to avoid a subtle assumption about the
Christophe Leroy's on August 27, 2019 4:13 pm:
>
>
> Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
>> There is support for the kernel to execute the 'sc 0' instruction and
>> make a system call to itself. This is a relic that is unused in the
>> tree, therefore untested. It's also highly
From: Markus Elfring
Date: Tue, 27 Aug 2019 13:34:02 +0200
A null pointer would be passed to a call of the function “kfree”
immediately after a call of the function “kstrdup” failed at one place.
Remove this superfluous function call.
This issue was detected by using the Coccinelle software.
Nicholas Piggin's on August 27, 2019 8:20 pm:
> Christophe Leroy's on August 27, 2019 4:13 pm:
>>
>>
>> Le 27/08/2019 à 05:30, Nicholas Piggin a écrit :
>>> There is support for the kernel to execute the 'sc 0' instruction and
>>> make a system call to itself. This is a relic that is unused in
Hi.
Lots of powerpc files include ,
and powerpc is the only architecture that does this.
exists to support modversion for asm.
So, it is supposed to be parsed by genksysms, not to be
included from other files. Right?
$ git grep asm/asm-prototypes.h
arch/arm64/include/asm/asm-prototypes.h:
> On 26-Aug-2019, at 3:42 PM, Sachin Sant wrote:
>
>> On 26-Aug-2019, at 8:59 AM, Michael Ellerman wrote:
>>
>> Sachin Sant writes:
>>> linux-next is currently broken on POWER8 non virtualized. Kernel
>>> fails to reach login prompt with following kernel warning
>>> repeatedly shown during
Hi Michal,
Thanks for the patch.
On 20/08/19 11:42 PM, Michal Suchanek wrote:
> Currently it is not possible to distinguish the case when fadump is
> supported by firmware and disabled in kernel and completely unsupported
> using the kernel sysfs interface. User can investigate the devicetree
From: Markus Elfring
Date: Tue, 27 Aug 2019 13:37:56 +0200
Omit an extra message for a memory allocation failure in this function.
Signed-off-by: Markus Elfring
---
arch/powerpc/platforms/pseries/dlpar.c | 4 +---
1 file changed, 1 insertion(+), 3 deletions(-)
diff --git
From: Markus Elfring
Date: Tue, 27 Aug 2019 08:44:20 +0200
A null pointer would be passed to a call of the function “of_node_put”
immediately after a call of the function “of_find_compatible_node” failed
at one place.
Remove this superfluous function call.
This issue was detected by using the
From: Markus Elfring
Date: Tue, 27 Aug 2019 09:19:32 +0200
Adjust jump targets so that a bit of exception handling can be better
reused at the end of this function.
This issue was detected by using the Coccinelle software.
Signed-off-by: Markus Elfring
---
Hi Christoph,
On Mon, Aug 26, 2019 at 03:25:50PM +0200, Christoph Hellwig wrote:
> arch_dma_mmap_pgprot is used for two things:
>
> 1) to override the "normal" uncached page attributes for mapping
> memory coherent to devices that can't snoop the CPU caches
> 2) to provide the special
Currently, the ibmvnic driver will not schedule device resets
if the device is being removed, but does not check the device
state before the reset is actually processed. This leads to a race
where a reset is scheduled with a valid device state but is
processed after the driver has been removed,
On Thu, 15 Aug 2019 16:37:14 +0800, Xiaowei Bao wrote:
> Add the pf-offset property for multiple PF.
>
> Signed-off-by: Xiaowei Bao
> ---
> Documentation/devicetree/bindings/pci/designware-pcie.txt | 1 +
> 1 file changed, 1 insertion(+)
>
Reviewed-by: Rob Herring
Christophe Leroy's on August 27, 2019 6:13 pm:
> SET_MSR_EE() is just use in this file and doesn't provide
> any added value compared to mtmsr(). Drop it.
>
> Add macros to use wrtee/wrteei insn.
>
> Replace #ifdefs by IS_ENABLED()
>
> Signed-off-by: Christophe Leroy
> ---
>
Em Tue, Aug 27, 2019 at 12:44:58PM +0530, Naveen N. Rao escreveu:
> Copy over powerpc syscall.tbl to grab changes from the below commits:
> commit cee3536d24a1 ("powerpc: Wire up clone3 syscall")
> commit 1a271a68e030 ("arch: mark syscall number 435 reserved for clone3")
> commit
On Sat, Aug 24, 2019 at 12:08:40AM +, Xiaowei Bao wrote:
>
>
> > -Original Message-
> > From: Andrew Murray
> > Sent: 2019年8月23日 21:58
> > To: Xiaowei Bao
> > Cc: bhelg...@google.com; robh...@kernel.org; mark.rutl...@arm.com;
> > shawn...@kernel.org; Leo Li ; kis...@ti.com;
> >
powerpc has an optimisation where interrupts avoid saving the
non-volatile (or callee saved) registers to the interrupt stack frame if
they are not required.
Two problems with this are that an interrupt does not always know
whether it will need non-volatiles; and if it does need them, they can
On Fri, Aug 23, 2019 at 11:50:20PM +, Xiaowei Bao wrote:
>
>
> > -Original Message-
> > From: Andrew Murray
> > Sent: 2019年8月23日 21:25
> > To: Xiaowei Bao
> > Cc: bhelg...@google.com; robh...@kernel.org; mark.rutl...@arm.com;
> > shawn...@kernel.org; Leo Li ; kis...@ti.com;
> >
Commit 3033f14ab78c3 ("clone: support passing tls argument via C rather
than pt_regs magic") introduced the HAVE_COPY_THREAD_TLS option. Use it
to avoid a subtle assumption about the argument ordering of clone type
syscalls.
Signed-off-by: Nicholas Piggin
---
No change since v1.
On Mon, Aug 26, 2019 at 09:49:35AM +, Xiaowei Bao wrote:
>
>
> > -Original Message-
> > From: Andrew Murray
> > Sent: 2019年8月23日 22:28
> > To: Xiaowei Bao
> > Cc: bhelg...@google.com; robh...@kernel.org; mark.rutl...@arm.com;
> > shawn...@kernel.org; Leo Li ; kis...@ti.com;
> >
Accounted for some feedback.
Nicholas Piggin (4):
powerpc: convert to copy_thread_tls
powerpc/64: remove support for kernel-mode syscalls
powerpc/64: system call remove non-volatile GPR save optimisation
powerpc/64: system call implement the bulk of the logic in C
arch/powerpc/Kconfig
There is support for the kernel to execute the 'sc 0' instruction and
make a system call to itself. This is a relic that is unused in the
tree, therefore untested. It's also highly questionable for modules to
be doing this.
Signed-off-by: Nicholas Piggin
---
No change since v1.
There are numerous references to 32bit functions in generic and 64bit
code so ifdef them out.
Signed-off-by: Michal Suchanek
---
arch/powerpc/include/asm/syscall.h | 2 ++
arch/powerpc/kernel/Makefile | 15 ---
arch/powerpc/kernel/entry_64.S | 2 ++
On Thu, Aug 22, 2019 at 07:22:36PM +0800, Xiaowei Bao wrote:
> Add compatible strings for ls1088a and ls2088a.
>
> Signed-off-by: Xiaowei Bao
> ---
> v2:
> - No change.
>
> Documentation/devicetree/bindings/pci/layerscape-pci.txt | 5 -
> 1 file changed, 4 insertions(+), 1 deletion(-)
>
These functions are required for 64bit as well.
Signed-off-by: Michal Suchanek
---
arch/powerpc/kernel/signal.c| 141
arch/powerpc/kernel/signal_32.c | 140 ---
2 files changed, 141 insertions(+), 140 deletions(-)
diff --git
On Tue, 27 Aug 2019 22:21:08 +0200
Michal Suchanek wrote:
> There are numerous references to 32bit functions in generic and 64bit
> code so ifdef them out.
>
> Signed-off-by: Michal Suchanek
> ---
> arch/powerpc/include/asm/syscall.h | 2 ++
> arch/powerpc/kernel/Makefile | 15
On Fri, Aug 09, 2019 at 06:07:52PM +0800, Jason Yan wrote:
> Add a new helper create_tlb_entry() to create a tlb entry by the virtual
> and physical address. This is a preparation to support boot kernel at a
> randomized address.
>
> Signed-off-by: Jason Yan
> Cc: Diana Craciun
> Cc: Michael
On Mon, Aug 26, 2019 at 11:51:43AM +0200, Krzysztof Wilczynski wrote:
> Remove unnecessary empty return statement at the end of a void
> function in the following:
>
> - drivers/pci/hotplug/cpci_hotplug_core.c: cleanup_slots()
> - drivers/pci/hotplug/cpqphp_core.c: pci_print_IRQ_route()
> -
With endian switch disabled by default the ppc64le compat supports
ppc32le only which is something next to nobody has binaries for.
Less code means less bugs so drop the compat stuff.
I am not particularly sure about the best way to resolve the llseek
situation. I don't see anything in the
64bit !COMPAT does not build because the llseek syscall is in the tables.
Signed-off-by: Michal Suchanek
---
fs/read_write.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/fs/read_write.c b/fs/read_write.c
index 5bbf587f5bc1..9db56931eb26 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
The patch
ASoC: imx-audmix: register the card on a proper dev
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.4
All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24
ppc32le was never really a thing. Endian swap is already disabled by
default so this 32bit support is kind of useless on ppc64le.
Signed-off-by: Michal Suchanek
---
arch/powerpc/Kconfig | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/powerpc/Kconfig
Vaibhav Jain's on August 28, 2019 1:23 am:
> This doc patch provides an initial description of the hcall op-codes
> that are used by Linux kernel running as a guest (LPAR) on top of
> PowerVM or any other sPAPR compliant hyper-visor (e.g qemu).
>
> Apart from documenting the hcalls the doc-patch
On Fri, 2019-08-09 at 18:07 +0800, Jason Yan wrote:
> This series implements KASLR for powerpc/fsl_booke/32, as a security
> feature that deters exploit attempts relying on knowledge of the location
> of kernel internals.
>
> Since CONFIG_RELOCATABLE has already supported, what we need to do is
>
On Thu, 2019-06-27 at 05:30:08 UTC, Daniel Axtens wrote:
> While reviewing lockdown patches, I discovered that we still enable
> /dev/port (CONFIG_DEVPORT) in skiroot.
>
> We don't need it. Deselect CONFIG_DEVPORT for skiroot.
>
> Signed-off-by: Daniel Axtens
Applied to powerpc next, thanks.
On Wed, 2019-08-14 at 20:52:11 UTC, Gustavo Romero wrote:
> Currently TM signal context tests for GPR, FPR, VMX, and VSX registers
> print wrong register numbers (wrongly starting from register 0 instead of
> the first register in the non-volatile subset). Besides it the output when
> a mismatch
The test case is
arecord -Dhw:0 -d 10 -f S16_LE -r 48000 -c 2 temp.wav &
aplay -Dhw:0 -d 30 -f S16_LE -r 48000 -c 2 test.wav
There will be error after end of arecord:
aplay: pcm_write:2051: write error: Input/output error
Capture and Playback work in parallel in master mode, one
substream stops,
> -Original Message-
> From: Andrew Murray
> Sent: 2019年8月27日 21:25
> To: Xiaowei Bao
> Cc: bhelg...@google.com; robh...@kernel.org; mark.rutl...@arm.com;
> shawn...@kernel.org; Leo Li ; kis...@ti.com;
> lorenzo.pieral...@arm.co; a...@arndb.de; gre...@linuxfoundation.org; M.h.
> Lian ;
On Tue, 2019-08-20 at 14:34:12 UTC, Christophe Leroy wrote:
> Today LOAD_REG_IMMEDIATE() is a basic #define which loads all
> parts on a value into a register, including the parts that are NUL.
>
> This means always 2 instructions on PPC32 and always 5 instructions
> on PPC64. And those
On Fri, Aug 09, 2019 at 06:07:54PM +0800, Jason Yan wrote:
> This patch add support to boot kernel from places other than KERNELBASE.
> Since CONFIG_RELOCATABLE has already supported, what we need to do is
> map or copy kernel to a proper place and relocate. Freescale Book-E
> parts expect lowmem
On Sat, 2019-07-13 at 03:21:06 UTC, Masahiro Yamada wrote:
> The KBUILD_ARFLAGS addition in arch/powerpc/Makefile has never worked
> in a useful way because it is always overridden by the following code
> in the top Makefile:
>
> # use the deterministic mode of AR if available
>
On Fri, 2019-05-24 at 02:46:48 UTC, "Christopher M. Riedl" wrote:
> Add support for disabling the kernel implemented spectre v2 mitigation
> (count cache flush on context switch) via the nospectre_v2 and
> mitigations=off cmdline options.
>
> Suggested-by: Michael Ellerman
> Signed-off-by:
> -Original Message-
> From: Andrew Murray
> Sent: 2019年8月27日 21:34
> To: Xiaowei Bao
> Cc: bhelg...@google.com; robh...@kernel.org; mark.rutl...@arm.com;
> shawn...@kernel.org; Leo Li ; kis...@ti.com;
> lorenzo.pieral...@arm.co; a...@arndb.de; gre...@linuxfoundation.org; M.h.
> Lian ;
On Thu, 2019-08-22 at 16:44:05 UTC, Christophe Leroy wrote:
> Book3E doesn't have SPRN_SPURR/SPRN_PURR.
>
> Activating ARCH_HAS_SCALED_CPUTIME is just wasting CPU time.
>
> Signed-off-by: Christophe Leroy
> Link: https://github.com/linuxppc/issues/issues/171
Applied to powerpc next, thanks.
On Tue, 2019-08-27 at 11:33 +1000, Michael Ellerman wrote:
> Jason Yan writes:
> > A polite ping :)
> >
> > What else should I do now?
>
> That's a good question.
>
> Scott, are you still maintaining FSL bits,
Sort of... now that it's become very low volume, it's easy to forget when
On Tue, 2019-08-13 at 03:13:12 UTC, "Christopher M. Riedl" wrote:
> Determining if a processor is in shared processor mode is not a constant
> so don't hide it behind a #define.
>
> Signed-off-by: Christopher M. Riedl
> Reviewed-by: Andrew Donnellan
Series applied to powerpc next, thanks.
On Tue, 2019-08-27 at 23:05 -0500, Scott Wood wrote:
> On Fri, 2019-08-09 at 18:07 +0800, Jason Yan wrote:
> > Freescale Book-E
> > parts expect lowmem to be mapped by fixed TLB entries(TLB1). The TLB1
> > entries are not suitable to map the kernel directly in a randomized
> > region, so we chose
The ultravisor (UV) provides an in-memory console which follows the OPAL
in-memory console structure.
This patch extends the OPAL msglog code to initialize the UV memory
console and provide the "/sys/firmware/ultravisor/msglog" interface
for userspace to view the UV message log.
Signed-off-by:
This patch refactors the code in opal-msglog that operates on the OPAL
memory console in order to make it cleaner and also allow the reuse of
the new memcons_* functions.
Signed-off-by: Claudio Carvalho
---
arch/powerpc/platforms/powernv/opal-msglog.c | 61 ++--
1 file changed,
On Wed, 2019-08-14 at 20:56:37 UTC, Gustavo Romero wrote:
> Document all options currently supported by xmon debugger.
>
> Signed-off-by: Gustavo Romero
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/6278f55ba5ed20f486ea2049da0cf9a9c1d9a5d5
cheers
On Fri, 2019-08-16 at 04:48:05 UTC, Sam Bobroff wrote:
> The pcibios_init() function for PowerPC 64 currently calls
> pci_bus_add_devices() before pcibios_resource_survey(). This means
> that at boot time, when the pcibios_bus_add_device() hooks are called
> by pci_bus_add_devices(), device
Hi Scott,
Thanks for your reply.
On 2019/8/28 6:07, Scott Wood wrote:
On Fri, Aug 09, 2019 at 06:07:52PM +0800, Jason Yan wrote:
Add a new helper create_tlb_entry() to create a tlb entry by the virtual
and physical address. This is a preparation to support boot kernel at a
randomized address.
Xmon should be either fully or partially disabled depending on the
kernel lockdown state.
Put xmon into read-only mode for lockdown=integrity and completely
disable xmon when lockdown=confidentiality. Since this can occur
dynamically, there may be pre-existing, active breakpoints in xmon when
On Tue, 2019-08-20 at 14:07:09 UTC, Christophe Leroy wrote:
> From: Christoph Hellwig
>
> The on chip memory allocator is entirely unused in the kernel tree.
>
> Signed-off-by: Christoph Hellwig
> Acked-by: Christophe Leroy
> Signed-off-by: Christophe Leroy
Series applied to powerpc next,
Le 28/08/2019 à 06:54, Scott Wood a écrit :
On Fri, Aug 09, 2019 at 06:07:54PM +0800, Jason Yan wrote:
This patch add support to boot kernel from places other than KERNELBASE.
Since CONFIG_RELOCATABLE has already supported, what we need to do is
map or copy kernel to a proper place and
> -Original Message-
> From: Andrew Murray
> Sent: 2019年8月27日 22:49
> To: Xiaowei Bao
> Cc: christophe leroy ; mark.rutl...@arm.com; Roy
> Zang ; lorenzo.pieral...@arm.co; a...@arndb.de;
> devicet...@vger.kernel.org; gre...@linuxfoundation.org;
> linuxppc-dev@lists.ozlabs.org;
Xmon should be either fully or partially disabled depending on the
kernel lockdown state.
Put xmon into read-only mode for lockdown=integrity and prevent user
entry into xmon when lockdown=confidentiality. Xmon checks the lockdown
state on every attempted entry:
(1) during early xmon'ing
(2)
Read-only mode should not prevent listing and clearing any active
breakpoints.
Signed-off-by: Christopher M. Riedl
---
arch/powerpc/xmon/xmon.c | 15 ++-
1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index
On Thu, 2019-08-08 at 23:09 +0200, Valentin Longchamp wrote:
> Le mar. 30 juil. 2019 à 11:44, Madalin-cristian Bucur
> a écrit :
> >
> > > -Original Message-
> > >
> > > > Le dim. 14 juil. 2019 à 22:05, Valentin Longchamp
> > > > a écrit :
> > > > >
> > > > > Change all
On Tue, 2019-08-20 at 22:54:11 UTC, Gustavo Romero wrote:
> TM test tm-unavailable must take into account aborts due to host aborting
> a transactin because of a facility unavailable exception, just like it
> already does for aborts on reschedules (TM_CAUSE_KVM_RESCHED).
>
> Reported-by: Desnes
On Tue, Aug 27, 2019 at 07:36:35PM +0200, Christophe Leroy wrote:
> Le 27/08/2019 à 19:29, Segher Boessenkool a écrit :
> >On Tue, Aug 27, 2019 at 10:48:24PM +1000, Nicholas Piggin wrote:
> >>Christophe Leroy's on August 27, 2019 6:13 pm:
> >>>+#define wrtee(val)asm volatile("wrtee %0" : :
Le 27/08/2019 à 20:26, Segher Boessenkool a écrit :
On Tue, Aug 27, 2019 at 07:36:35PM +0200, Christophe Leroy wrote:
Le 27/08/2019 à 19:29, Segher Boessenkool a écrit :
On Tue, Aug 27, 2019 at 10:48:24PM +1000, Nicholas Piggin wrote:
Christophe Leroy's on August 27, 2019 6:13 pm:
Most 8xx registers have specific names, so just include
reg_8xx.h all the time in reg.h in order to have them defined
even when CONFIG_PPC_8xx is not selected. This will avoid
the need for #ifdefs in C code.
Guard SPRN_ICTRL in an #ifdef CONFIG_PPC_8xx as this register
has same name but different
SET_MSR_EE() is just use in this file and doesn't provide
any added value compared to mtmsr(). Drop it.
Add a wrtee() inline function to use wrtee/wrteei insn.
Replace #ifdefs by IS_ENABLED()
Signed-off-by: Christophe Leroy
---
v2: Changed wrtee()/wrteei() to a single wrtee() inline which
On Tue, Aug 27, 2019 at 08:33:45PM +0200, Christophe Leroy wrote:
> >So
> > asm("add%I2 %0,%1,%2" : "=r"(dst) : "r"(src1), "ri"(src1));
>
> "ri", not "n" as for wrtee ?
"n" means a number. "i" means any constant integer. The difference is
mostly that "n" does not allow relocations. This
Le 27/08/2019 à 17:23, Vaibhav Jain a écrit :
This doc patch provides an initial description of the hcall op-codes
that are used by Linux kernel running as a guest (LPAR) on top of
PowerVM or any other sPAPR compliant hyper-visor (e.g qemu).
Apart from documenting the hcalls the doc-patch also
Most 8xx registers have specific names, so just include
reg_8xx.h all the time in reg.h in order to have them defined
even when CONFIG_PPC_8xx is not selected. This will avoid
the need for #ifdefs in C code.
Guard SPRN_ICTRL in an #ifdef CONFIG_PPC_8xx as this register
has same name but different
On Tue, Aug 27, 2019 at 10:48:24PM +1000, Nicholas Piggin wrote:
> Christophe Leroy's on August 27, 2019 6:13 pm:
> > +#define wrtee(val) asm volatile("wrtee %0" : : "r" (val) : "memory")
> > +#define wrteei(val)asm volatile("wrteei %0" : : "i" (val) :
> > "memory")
>
> Can you implement
Unlike standard powerpc, Powerpc 8xx doesn't have SPRN_DABR, but
it has a breakpoint support based on a set of comparators which
allow more flexibility.
Commit 4ad8622dc548 ("powerpc/8xx: Implement hw_breakpoint")
implemented breakpoints by emulating the DABR behaviour. It did
this by setting one
Le 27/08/2019 à 19:29, Segher Boessenkool a écrit :
On Tue, Aug 27, 2019 at 10:48:24PM +1000, Nicholas Piggin wrote:
Christophe Leroy's on August 27, 2019 6:13 pm:
+#define wrtee(val) asm volatile("wrtee %0" : : "r" (val) : "memory")
+#define wrteei(val)asm volatile("wrteei %0" : :
This simplifies and standardizes slot manipulation code
by using for_each_set_bit() library function.
Signed-off-by: Andy Shevchenko
---
drivers/pci/pcie/aer.c | 19 ---
1 file changed, 8 insertions(+), 11 deletions(-)
diff --git a/drivers/pci/pcie/aer.c
Kernel-doc validator complains:
aer.c:207: warning: Function parameter or member 'str' not described in
'pcie_ecrc_get_policy'
aer.c:1209: warning: Function parameter or member 'irq' not described in
'aer_isr'
aer.c:1209: warning: Function parameter or member 'context' not described in
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