tree: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
head: b9bbbf4979073d5536b7650decd37fcb901e6556
commit: 4d15721177d539d743fcf31d7bb376fb3b81aeb6 [84/128] powerpc/mm: Cleanup
memory block size probing
config: powerpc64-randconfig-r005-20230825
(https://download.01
On Thu, Aug 24, 2023 at 03:36:10PM -0700, Kees Cook wrote:
> Doing a "make help" would show only hard-coded Kconfig targets and
> depended on the archhelp target to include ".config" targets. There was
> nothing showing global kernel/configs/ targets. Solve this by walking
> the wildcard list and i
Hi Michael,
On Fri, Aug 25, 2023 at 3:31 AM Michael Schmitz wrote:
> On 25/08/23 13:12, Martin K. Petersen wrote:
> > [11/17] scsi: gvp11: remove unused gvp11_setup() function
> > https://git.kernel.org/mkp/scsi/c/bfaa4a0ce1bb
>
> I somehow missed that one ...
>
> The gvp11_setup() funct
Hello:
This patch was applied to netdev/net-next.git (main)
by David S. Miller :
On Wed, 23 Aug 2023 15:21:43 +0200 you wrote:
> On powerpc64le checksum kunit tests work:
>
> [2.011457][T1] KTAP version 1
> [2.011662][T1] # Subtest: checksum
> [2.011848][T1] 1
On 8xx, PAGE_NONE is handled by setting _PAGE_NA instead of clearing
_PAGE_USER.
But then pte_user() returns 1 also for PAGE_NONE.
As _PAGE_NA prevent reads, add a specific version of pte_read()
that returns 0 when _PAGE_NA is set instead of always returning 1.
Fixes: 351750331fc1 ("powerpc/mm:
On 25/08/23 11:26 am, Kajol Jain wrote:
Valid domain value is in range 1 to HV_PERF_DOMAIN_MAX.
Current code has check for domain value greater than or
equal to HV_PERF_DOMAIN_MAX. But the check for domain value 0
is missing.
Fix this issue by adding check for domain value 0.
Fixes: ebd4a5a3ebd
On Fri, 25 Aug 2023 05:46:43 +0200,
Shengjiu Wang wrote:
>
> On Fri, Aug 25, 2023 at 4:21 AM Mark Brown wrote:
> >
> > On Thu, Aug 24, 2023 at 07:03:09PM +0200, Takashi Iwai wrote:
> > > Shengjiu Wang wrote:
> >
> > > > But there are several issues:
> > > > 1. Need to create sound cards. ASRC mo
On 25/08/2023 15:54, Takashi Iwai wrote:
> On Fri, 25 Aug 2023 05:46:43 +0200,
> Shengjiu Wang wrote:
>>
>> On Fri, Aug 25, 2023 at 4:21 AM Mark Brown wrote:
>>>
>>> On Thu, Aug 24, 2023 at 07:03:09PM +0200, Takashi Iwai wrote:
Shengjiu Wang wrote:
>>>
> But there are several issues:
From: "Dr. David Alan Gilbert"
PowerPC has a 'btext' font used for the console which is almost identical
to the shared font_sun8x16, so use it rather than duplicating the data.
They were actually identical until about a decade ago when
commit bcfbeecea11c ("drivers: console: font_: Change a g
On Thu, Aug 24, 2023 at 06:09:52PM -0400, Sean Anderson wrote:
> On 8/21/23 19:59, Vladimir Oltean wrote:
> > On Mon, Aug 21, 2023 at 07:39:15PM -0400, Sean Anderson wrote:
> >> Well, I think we should take the opportunity to think about the hardware
> >> which exists and how we plan to model it. I
bpf_arch_text_copy is used to dump JITed binary to RX page, allowing
multiple BPF programs to share the same page. Use patch_instruction()
to implement it.
Signed-off-by: Hari Bathini
---
arch/powerpc/net/bpf_jit_comp.c | 40 -
1 file changed, 39 insertions(+), 1
Use bpf_jit_binary_pack_alloc in powerpc jit. The jit engine first
writes the program to the rw buffer. When the jit is done, the program
is copied to the final location with bpf_jit_binary_pack_finalize.
With multiple jit_subprogs, bpf_jit_free is called on some subprograms
that haven't got bpf_ji
patch_instruction() entails setting up pte, patching the instruction,
clearing the pte and flushing the tlb. If multiple instructions need
to be patched, every instruction would have to go through the above
drill unnecessarily. Instead, introduce function patch_instructions()
that sets up the pte,
Most BPF programs are small, but they consume a page each. For systems
with busy traffic and many BPF programs, this may also add significant
pressure on instruction TLB. High iTLB pressure usually slows down the
whole system causing visible performance degradation for production
workloads.
bpf_pr
Use the newly introduced patch_instructions() that handles patching
multiple instructions with one call. This improves speed of exectution
for JIT'ing bpf programs.
Without this patch (on a POWER9 lpar):
# time modprobe test_bpf
real2m59.681s
user0m0.000s
sys 1m44.160s
#
Wi
Implement bpf_arch_text_invalidate and use it to fill unused part of
the bpf_prog_pack with trap instructions when a BPF program is freed.
Signed-off-by: Hari Bathini
---
arch/powerpc/net/bpf_jit_comp.c | 22 +++---
1 file changed, 19 insertions(+), 3 deletions(-)
diff --git a/a
Le 25/08/2023 à 17:18, Hari Bathini a écrit :
> bpf_arch_text_copy is used to dump JITed binary to RX page, allowing
> multiple BPF programs to share the same page. Use patch_instruction()
> to implement it.
By using patch_instruction() for doing that you are mapping and
unmapping the same page
On 11/03/23 3:46 pm, Christophe Leroy wrote:
Le 09/03/2023 à 19:02, Hari Bathini a écrit :
Use bpf_jit_binary_pack_alloc in powerpc jit. The jit engine first
writes the program to the rw buffer. When the jit is done, the program
is copied to the final location with bpf_jit_binary_pack_final
Le 25/08/2023 à 17:18, Hari Bathini a écrit :
> Implement bpf_arch_text_invalidate and use it to fill unused part of
> the bpf_prog_pack with trap instructions when a BPF program is freed.
>
> Signed-off-by: Hari Bathini
> ---
> arch/powerpc/net/bpf_jit_comp.c | 22 +++---
>
On 11/03/23 4:05 am, Song Liu wrote:
On Thu, Mar 9, 2023 at 10:03 AM Hari Bathini wrote:
Use bpf_jit_binary_pack_alloc in powerpc jit. The jit engine first
writes the program to the rw buffer. When the jit is done, the program
is copied to the final location with bpf_jit_binary_pack_finaliz
Le 25/08/2023 à 17:18, Hari Bathini a écrit :
> Use the newly introduced patch_instructions() that handles patching
> multiple instructions with one call. This improves speed of exectution
> for JIT'ing bpf programs.
>
> Without this patch (on a POWER9 lpar):
>
># time modprobe test_bpf
>
Hello,
On Thu, Aug 24, 2023 at 11:11 PM Aditya Gupta wrote:
>
> The Problem
> ===
>
> Currently the presence of a feature is checked with a combination of
> perf version --build-options and greps, such as:
>
> perf version --build-options | grep " on .* HAVE_FEATURE"
>
> Proposed solu
On 25/08/23 9:03 pm, Christophe Leroy wrote:
Le 25/08/2023 à 17:18, Hari Bathini a écrit :
Implement bpf_arch_text_invalidate and use it to fill unused part of
the bpf_prog_pack with trap instructions when a BPF program is freed.
Signed-off-by: Hari Bathini
---
arch/powerpc/net/bpf_jit
On Thu, Aug 24, 2023 at 06:51:48PM -0700, Jerry Snitselaar wrote:
> > + /*
> > +* Allow legacy drivers to specify the domain that will be the default
> > +* domain. This should always be either an IDENTITY or PLATFORM domain.
> > +* Do not use in new drivers.
> > +*/
>
> Would i
On 25/08/23 9:16 pm, Christophe Leroy wrote:
Le 25/08/2023 à 17:18, Hari Bathini a écrit :
Use the newly introduced patch_instructions() that handles patching
multiple instructions with one call. This improves speed of exectution
for JIT'ing bpf programs.
Without this patch (on a POWER9 lp
ing
> config: powerpc64-randconfig-r005-20230825
> (https://download.01.org/0day-ci/archive/20230825/202308251532.k9ppwead-...@intel.com/config)
> compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git
> 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a)
> reproduce:
> (h
On Thu, Aug 24, 2023 at 05:04:02PM -0700, Randy Dunlap wrote:
> Hi Kees,
>
> On 8/24/23 15:36, Kees Cook wrote:
> > Doing a "make help" would show only hard-coded Kconfig targets and
> > depended on the archhelp target to include ".config" targets. There was
> > nothing showing global kernel/confi
On Fri, Aug 25, 2023 at 04:56:54AM +, Christophe Leroy wrote:
> Le 25/08/2023 à 00:36, Kees Cook a écrit :
> > +# Base hardware support for 86xx
>
> s/86xx/85xx
> [...]
Thanks for the typo fixes! I'll get these all fixed up. :)
--
Kees Cook
On Fri, Aug 25, 2023 at 07:44:06AM +0200, Nicolas Schier wrote:
> On Thu, Aug 24, 2023 at 03:36:10PM -0700, Kees Cook wrote:
> > Doing a "make help" would show only hard-coded Kconfig targets and
> > depended on the archhelp target to include ".config" targets. There was
> > nothing showing global
On Fri, Aug 25, 2023 at 04:11:58PM +1000, Michael Ellerman wrote:
> Kees Cook writes:
> > Doing a "make help" would show only hard-coded Kconfig targets and
> > depended on the archhelp target to include ".config" targets. There was
> > nothing showing global kernel/configs/ targets. Solve this by
On 8/25/23 11:20, Kees Cook wrote:
> On Thu, Aug 24, 2023 at 05:04:02PM -0700, Randy Dunlap wrote:
>> Hi Kees,
>>
>> On 8/24/23 15:36, Kees Cook wrote:
>>> Doing a "make help" would show only hard-coded Kconfig targets and
>>> depended on the archhelp target to include ".config" targets. There w
Hi,
This is my series to show *.config targets in the "help" target so these
various topics can be more easily discoverd.
v2:
- split .fragment from .config to hide "internal" fragments
- fix various typos
- avoid duplicate entries
v1: https://lore.kernel.org/all/20230824223606.never.762-k...@
Doing a "make help" would show only hard-coded Kconfig targets and
depended on the archhelp target to include ".config" targets. There was
nothing showing global kernel/configs/ targets. Solve this by walking
the wildcard list and include them in the output, using the first comment
line as the help
Many Kconfig fragments are being used internally to construct hard-coded
targets and shouldn't be reachable directly through the build system.
Splitting these out also means that the "help" target can display only
the "complete" .config targets intended for general use. This is
especially useful fo
On Fri, Aug 25, 2023 at 02:40:10PM -0300, Jason Gunthorpe wrote:
> On Thu, Aug 24, 2023 at 06:51:48PM -0700, Jerry Snitselaar wrote:
>
> > > + /*
> > > + * Allow legacy drivers to specify the domain that will be the default
> > > + * domain. This should always be either an IDENTITY or PLATFORM d
On Wed, Aug 23, 2023 at 01:47:17PM -0300, Jason Gunthorpe wrote:
> POWER is using the set_platform_dma_ops() callback to hook up its private
> dma_ops, but this is buired under some indirection and is weirdly
> happening for a BLOCKED domain as well.
>
> For better documentation create a PLATFORM
On Wed, Aug 23, 2023 at 01:47:18PM -0300, Jason Gunthorpe wrote:
> The PLATFORM domain will be set as the default domain and attached as
> normal during probe. The driver will ignore the initial attach from a NULL
> domain to the PLATFORM domain.
>
> After this, the PLATFORM domain's attach_dev wi
On Wed, Aug 23, 2023 at 01:47:20PM -0300, Jason Gunthorpe wrote:
> Thierry says this is not used anymore, and doesn't think it makes sense as
> an iommu driver. The HW it supports is about 10 years old now and newer HW
> uses different IOMMU drivers.
>
> As this is the only driver with a GART appr
On Wed, Aug 23, 2023 at 01:47:19PM -0300, Jason Gunthorpe wrote:
> This driver is nonsensical. To not block migrating the core API away from
> NULL default_domains give it a hacky of a PLATFORM domain that keeps it
> working exactly as it always did.
>
> Leave some comments around to warn away any
On Wed, Aug 23, 2023 at 01:47:21PM -0300, Jason Gunthorpe wrote:
> What mtk does during mtk_iommu_v1_set_platform_dma() is actually putting
> the iommu into identity mode. Make this available as a proper IDENTITY
> domain.
>
> The mtk_iommu_v1_def_domain_type() from
> commit 8bbe13f52cb7 ("iommu/m
From: Robert Richter
In Restricted CXL Device (RCD) mode a CXL device is exposed as an
RCiEP, but CXL downstream and upstream ports are not enumerated and
not visible in the PCIe hierarchy. [1] Protocol and link errors from
these non-enumerated ports are signaled as internal AER errors, either
Un
On 2023/8/24 15:12, Alexander Gordeev wrote:
On Mon, Aug 21, 2023 at 08:30:47PM +0800, Kefeng Wang wrote:
Hi Kefeng,
The ARCH_SUPPORTS_PER_VMA_LOCK are enabled by more and more architectures,
eg, x86, arm64, powerpc and s390, and riscv, those implementation are very
similar which results in
On 2023/8/24 16:32, Heiko Carstens wrote:
On Thu, Aug 24, 2023 at 10:16:33AM +0200, Alexander Gordeev wrote:
On Mon, Aug 21, 2023 at 08:30:50PM +0800, Kefeng Wang wrote:
Use new try_vma_locked_page_fault() helper to simplify code.
No functional change intended.
Signed-off-by: Kefeng Wang
-
Process the result of hold_open() and return it from
uhdlc_open() in case of an error
It is necessary to pass the error code up the control flow,
similar to a possible error in request_irq()
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: c19b6d246a35 ("drivers/net: suppo
Hi Geert,
Am 25.08.23 um 19:39 schrieb Geert Uytterhoeven:
> Hi Michael,
>
> On Fri, Aug 25, 2023 at 3:31 AM Michael Schmitz wrote:
>> On 25/08/23 13:12, Martin K. Petersen wrote:
>>> [11/17] scsi: gvp11: remove unused gvp11_setup() function
>>> https://git.kernel.org/mkp/scsi/c/bfaa4a0c
Le 25/08/2023 à 16:31, Alexandra Diupina a écrit :
> [Vous ne recevez pas souvent de courriers de adiup...@astralinux.ru.
> Découvrez pourquoi ceci est important à
> https://aka.ms/LearnAboutSenderIdentification ]
>
> Process the result of hold_open() and return it from
> uhdlc_open() in case
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