On 10/22/21 7:59 AM, Arnd Bergmann wrote:
From: Arnd Bergmann
parisc, ia64 and powerpc32 are the only remaining architectures that
provide custom arch_{spin,read,write}_lock_flags() functions, which are
meant to re-enable interrupts while waiting for a spinlock.
However, none of these can actu
On 10/22/21 7:24 AM, Alexey Kardashevskiy wrote:
>
>
> On 22/10/2021 04:44, Brian King wrote:
>> If ibm,pmemory is installed in the system, it can appear anywhere
>> in the address space. This patch enhances how we handle DMA for devices when
>> ibm,pmemory is present. In the case where we have e
On 10/21/21 5:26 PM, Li Yang wrote:
> On Wed, Aug 18, 2021 at 4:23 PM Christophe JAILLET
> wrote:
>>
>> If an error occurs after 'of_find_node_by_path()', the reference taken for
>> 'root' will never be released and some memory will leak.
>
> Thanks for finding this. This truly is a problem.
>
Copied to Christopher M. Riedl and linuxppc list.
Le 22/10/2021 à 19:40, Stan Johnson a écrit :
Hello Christophe and Finn,
My message to Christopher Riedl bounced:
:
554: 5.7.1 : Relay access denied
I'm not sure how to proceed; thanks for any help.
You should always copy the list, as other
Thanks for the changes!
More nits below (many left over from prior review)...
On Fri, Oct 22, 2021 at 11:55:05AM +0530, Kajol Jain wrote:
> Add pmu metric json file for power10 platform.
>
> Signed-off-by: Kajol Jain
> ---
> Changelog v1 -> v2:
> - Did some nit changes in BriefDescription field
On 10/22/21 13:59, Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> parisc, ia64 and powerpc32 are the only remaining architectures that
> provide custom arch_{spin,read,write}_lock_flags() functions, which are
> meant to re-enable interrupts while waiting for a spinlock.
>
> However, none of these
On 22/10/2021 04:44, Brian King wrote:
If ibm,pmemory is installed in the system, it can appear anywhere
in the address space. This patch enhances how we handle DMA for devices when
ibm,pmemory is present. In the case where we have enough DMA space to
direct map all of RAM, but not ibm,pmemory
Nathan Lynch writes:
> Daniel Axtens writes:
>>> On VMs with NX encryption, compression, and/or RNG offload, these
>>> capabilities are described by nodes in the ibm,platform-facilities device
>>> tree hierarchy:
>>>
>>> $ tree -d /sys/firmware/devicetree/base/ibm,platform-facilities/
>>> /s
From: Arnd Bergmann
parisc, ia64 and powerpc32 are the only remaining architectures that
provide custom arch_{spin,read,write}_lock_flags() functions, which are
meant to re-enable interrupts while waiting for a spinlock.
However, none of these can actually run into this codepath, because
it is o
On 22.10.21 09:24, Jan Beulich wrote:
On 22.10.2021 08:47, Juergen Gross wrote:
Today the non-essential pv devices are hard coded in the xenbus driver
and this list is lacking multiple entries.
This series reworks the detection logic of non-essential devices by
adding a flag for that purpose to
On 22.10.2021 08:47, Juergen Gross wrote:
> Today the non-essential pv devices are hard coded in the xenbus driver
> and this list is lacking multiple entries.
>
> This series reworks the detection logic of non-essential devices by
> adding a flag for that purpose to struct xenbus_driver.
I'm won
Today the non-essential pv devices are hard coded in the xenbus driver
and this list is lacking multiple entries.
This series reworks the detection logic of non-essential devices by
adding a flag for that purpose to struct xenbus_driver.
Juergen Gross (5):
xen: add "not_essential" flag to struc
Excerpts from Nicholas Piggin's message of October 22, 2021 7:34 pm:
> Excerpts from Christophe Leroy's message of October 22, 2021 5:18 pm:
>>
>>
>> Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
>>> Compiling out hash support code when CONFIG_PPC_64S_HASH_MMU=n saves
>>> 128kB kernel image si
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
next-test
branch HEAD: 2974d421aac1374d3269fe4f1fba2068aa33134d powerpc/32: Don't use a
struct based type for pte_t
elapsed time: 1247m
configs tested: 103
configs skipped: 3
The following configs have been built s
Le 22/10/2021 à 11:34, Nicholas Piggin a écrit :
Excerpts from Christophe Leroy's message of October 22, 2021 5:18 pm:
Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
diff --git a/arch/powerpc/mm/book3s64/pgtable.c
b/arch/powerpc/mm/book3s64/pgtable.c
index 7d556b5513e4..57d2d797c4f6 1
Excerpts from Christophe Leroy's message of October 22, 2021 5:18 pm:
>
>
> Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
>> Microwatt is radix-only, so it does not require hash MMU support.
>>
>> This saves 20kB compressed dtbImage and 56kB vmlinux size.
>
> I think patch 17 and 18 should b
Excerpts from Christophe Leroy's message of October 22, 2021 5:18 pm:
>
>
> Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
>> Compiling out hash support code when CONFIG_PPC_64S_HASH_MMU=n saves
>> 128kB kernel image size (90kB text) on powernv_defconfig minus KVM,
>> 350kB on pseries_defconfig
Excerpts from Christophe Leroy's message of October 22, 2021 5:02 pm:
>
>
> Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
>> This adds Kconfig selection which allows 64s hash MMU support to be
>> disabled. It can be disabled if radix support is enabled, the minimum
>> supported CPU type is POW
Excerpts from Christophe Leroy's message of October 22, 2021 4:49 pm:
>
>
> Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
>> mmu_linear_psize is only set at boot once on 64e, is not necessarily
>> the correct size of the linear map pages, and is never used anywhere.
>> Remove it.
>
> mmu_line
Le 22/10/2021 à 08:13, Nicholas Piggin a écrit :
Introduce macros that operate on a (start, end) range of GPRs, which
reduces lines of code and need to do mental arithmetic while reading the
code.
Reviewed-by: Segher Boessenkool
Signed-off-by: Nicholas Piggin
Reviewed-by: Christophe Leroy
Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
Microwatt is radix-only, so it does not require hash MMU support.
This saves 20kB compressed dtbImage and 56kB vmlinux size.
I think patch 17 and 18 should be squashed together.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/configs/mi
Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
Compiling out hash support code when CONFIG_PPC_64S_HASH_MMU=n saves
128kB kernel image size (90kB text) on powernv_defconfig minus KVM,
350kB on pseries_defconfig minus KVM, 40kB on a tiny config.
Signed-off-by: Nicholas Piggin
---
arch/pow
Le 22/10/2021 à 00:30, Nicholas Piggin a écrit :
This adds Kconfig selection which allows 64s hash MMU support to be
disabled. It can be disabled if radix support is enabled, the minimum
supported CPU type is POWER9 (or higher), and KVM is not selected.
Signed-off-by: Nicholas Piggin
---
a
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