Thanks,
applied to the dma-mapping tree for 6.4.
Use the preferred form of branch-and-link for finding the current
address so objtool doesn't think it is an unannotated intra-function
call.
Signed-off-by: Nicholas Piggin
---
arch/powerpc/boot/crt0.S | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git
-mcpu=power10 will generate prefixed and pcrel code by default, which
we do not support. The general kernel disables these with cflags, but
those were missed for the boot wrapper.
Reported-by: Danny Tsen
Fixes: 4b2a9315f20d9 ("powerpc/64s: POWER10 CPU Kconfig build option")
Signed-off-by:
On 4/4/23 06:28, Michael Ellerman wrote:
The amdgpu driver builds some of its code with hard-float enabled,
whereas the rest of the kernel is built with soft-float.
When building with 64-bit long double, if soft-float and hard-float
objects are linked together, the build fails due to
On Fri, Mar 17, 2023 at 10:51:09AM -0700, Grant Grundler wrote:
> From: Rajat Khandelwal
>
> There are many instances where correctable errors tend to inundate
> the message buffer. We observe such instances during thunderbolt PCIe
> tunneling.
>
> It's true that they are mitigated by the
On Thu, Apr 06, 2023 at 05:51:52PM +0200, David Hildenbrand wrote:
> On 06.04.23 17:02, Peter Zijlstra wrote:
> > DavidH, what do you thikn about reviving Jann's patches here:
> >
> >https://bugs.chromium.org/p/project-zero/issues/detail?id=2365#c1
> >
> > Those are far more invasive, but
LY__
---
base-commit: b0bbe5a2915201e3231e788d716d39dc54493b03
change-id: 20230406-wundef-thread_shift_booke-e08d806ed656
Best regards,
--
Nathan Chancellor
On 06.04.23 17:02, Peter Zijlstra wrote:
On Thu, Apr 06, 2023 at 04:04:23PM +0200, Peter Zijlstra wrote:
On Thu, Apr 06, 2023 at 03:29:28PM +0200, Peter Zijlstra wrote:
On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
To actually hit this path you're doing something really
On Thu, Apr 06, 2023 at 04:42:02PM +0200, David Hildenbrand wrote:
> On 06.04.23 16:04, Peter Zijlstra wrote:
> > On Thu, Apr 06, 2023 at 03:29:28PM +0200, Peter Zijlstra wrote:
> > > On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
> > >
> > > > > To actually hit this path you're
On Thu, Apr 06, 2023 at 04:04:23PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 06, 2023 at 03:29:28PM +0200, Peter Zijlstra wrote:
> > On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
> >
> > > > To actually hit this path you're doing something really dodgy.
> > >
> > > Apparently
On Thu, Apr 6, 2023, at 16:30, Thomas Zimmermann wrote:
> Replace the architecture's fb_is_primary_device() with the generic
> one from . No functional changes.
>
> Signed-off-by: Thomas Zimmermann
> Cc: Thomas Bogendoerfer
I think you should at least mention that the existing
fb_pgprotect()
Code in the idle path is not allowed to be instrumented because RCU is
disabled, see commit 0e985e9d2286 ("cpuidle: Add comments about
noinstr/__cpuidle usage").
Mark prep_irq_for_idle() __cpuidle, which is equivalent to noinstr, to
enforce that.
Suggested-by: Peter Zijlstra
Signed-off-by:
Since commit a01353cf1896 ("cpuidle: Fix ct_idle_*() usage"), the
cpuidle entry code calls trace_hardirqs_on() (actually
trace_hardirqs_on_prepare()) in ct_cpuidle_enter() before calling into
the cpuidle driver.
Suggested-by: Peter Zijlstra
Signed-off-by: Michael Ellerman
---
Code in the idle path is not allowed to be instrumented because RCU is
disabled, see commit 0e985e9d2286 ("cpuidle: Add comments about
noinstr/__cpuidle usage").
Force inlining of the inline functions called from cpuidle, to ensure
they are not emitted out-of-line and then available for tracing.
Code in the idle path is not allowed to be instrumented because RCU is
disabled, see commit 0e985e9d2286 ("cpuidle: Add comments about
noinstr/__cpuidle usage").
Mark the cpuidle ->enter() callbacks as __cpuidle and use the
raw_local_irq_*() routines to ensure that is the case.
Reported-by:
On Thu, Apr 6, 2023, at 16:30, Thomas Zimmermann wrote:
> +
> static inline void fb_pgprotect(struct file *file, struct vm_area_struct
> *vma,
> unsigned long off)
> {
> vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
> }
> +#define fb_pgprotect
On 06.04.23 16:04, Peter Zijlstra wrote:
On Thu, Apr 06, 2023 at 03:29:28PM +0200, Peter Zijlstra wrote:
On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
To actually hit this path you're doing something really dodgy.
Apparently khugepaged is using the same infrastructure:
$
On Thu, Apr 06, 2023 at 03:11:52PM +0100, Valentin Schneider wrote:
> On 06/04/23 15:38, Peter Zijlstra wrote:
> > On Wed, Apr 05, 2023 at 01:45:02PM +0100, Valentin Schneider wrote:
> >>
> >> I've been hacking on something like this (CSD deferral for NOHZ-full),
> >> and unfortunately this uses
On Thu, Apr 6, 2023, at 16:30, Thomas Zimmermann wrote:
> Generic implementations of fb_pgprotect() and fb_is_primary_device()
> have been in the source code for a long time. Prepare the header file
> to make use of them.
>
> Improve the code by using an inline function for fb_pgprotect()
> and by
Include and set the required preprocessor tokens
correctly. x86 now implements its own set of fb helpers, but still
follows the overall pattern.
Signed-off-by: Thomas Zimmermann
Cc: Thomas Gleixner
Cc: Ingo Molnar
Cc: Borislav Petkov
Cc: Dave Hansen
Cc: "H. Peter Anvin"
---
Include for correctness. Sparc does provide
it's own implementation of the contained functions.
v2:
* restore the original fb_pgprotect()
Signed-off-by: Thomas Zimmermann
Cc: "David S. Miller"
---
arch/sparc/include/asm/fb.h | 7 +--
1 file changed, 5 insertions(+), 2
Other architectures implment fb_is_primary_device() in a source
file. Do the same on sparc. No functional changes, but allows to
remove several include statement from .
v2:
* don't include in header file
Signed-off-by: Thomas Zimmermann
Cc: "David S. Miller"
---
arch/sparc/Makefile
Replace the architecture's fbdev helpers with the generic
ones from . No functional changes.
v2:
* use default implementation for fb_pgprotect() (Arnd)
Signed-off-by: Thomas Zimmermann
Cc: Yoshinori Sato
Cc: Rich Felker
Cc: John Paul Adrian Glaubitz
---
arch/sh/include/asm/fb.h | 15
Replace the architecture's fb_is_primary_device() with the generic
one from . No functional changes.
Signed-off-by: Thomas Zimmermann
Cc: Michael Ellerman
Cc: Nicholas Piggin
Cc: Christophe Leroy
---
arch/powerpc/include/asm/fb.h | 8 +++-
1 file changed, 3 insertions(+), 5 deletions(-)
Replace the architecture's fb_is_primary_device() with the generic
one from on systems without CONFIG_STI_CORE. No
functional changes.
Signed-off-by: Thomas Zimmermann
Cc: "James E.J. Bottomley"
Cc: Helge Deller
---
arch/parisc/include/asm/fb.h | 15 ---
1 file changed, 8
Move PARISC's implementation of fb_is_primary_device() into the
architecture directory. This the place of the declaration and
where other architectures implement this function. No functional
changes.
Signed-off-by: Thomas Zimmermann
Cc: "James E.J. Bottomley"
Cc: Helge Deller
---
Fix trailing whitespaces. No functional changes.
Signed-off-by: Thomas Zimmermann
Cc: "James E.J. Bottomley"
Cc: Helge Deller
---
arch/parisc/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index
Fix trailing whitespaces. No functional changes.
Signed-off-by: Thomas Zimmermann
---
drivers/video/console/sticon.c | 4 +-
drivers/video/console/sticore.c | 102 ++---
drivers/video/fbdev/sticore.h | 14 +--
drivers/video/fbdev/stifb.c | 156
Replace the architecture's fb_is_primary_device() with the generic
one from . No functional changes.
Signed-off-by: Thomas Zimmermann
Cc: Thomas Bogendoerfer
---
arch/mips/include/asm/fb.h | 10 --
1 file changed, 4 insertions(+), 6 deletions(-)
diff --git a/arch/mips/include/asm/fb.h
STI core files have been located in console and fbdev code. Move
the source code and header to the directories for video helpers.
Also update the config and build rules such that the code depends
on the config symbol CONFIG_STI_CORE, which STI console and STI
framebuffer select automatically.
Replace the architecture's fb_is_primary_device() with the generic
one from . No functional changes.
v2:
* provide empty fb_pgprotect() on non-MMU systems
Signed-off-by: Thomas Zimmermann
Cc: Geert Uytterhoeven
---
arch/m68k/include/asm/fb.h | 10 --
1 file changed, 4
Merge all variants of fb_pgprotect() into a single function body.
There are two different cases for MMU systems. For non-MMU systems,
the function body will be empty. No functional changes, but this
will help with the switch to .
Signed-off-by: Thomas Zimmermann
---
arch/m68k/include/asm/fb.h |
Replace the architecture's fbdev helpers with the generic
ones from . No functional changes.
v2:
* use default implementation for fb_pgprotect() (Arnd)
Signed-off-by: Thomas Zimmermann
Cc: Huacai Chen
Cc: WANG Xuerui
---
arch/loongarch/include/asm/fb.h | 15 +--
1 file
Replace the architecture's fb_is_primary_device() with the generic
one from . No functional changes.
Signed-off-by: Thomas Zimmermann
---
arch/ia64/include/asm/fb.h | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/ia64/include/asm/fb.h
Replace the architecture's fbdev helpers with the generic
ones from . No functional changes.
v2:
* use default implementation for fb_pgprotect() (Arnd)
Signed-off-by: Thomas Zimmermann
Cc: Catalin Marinas
Cc: Will Deacon
---
arch/arm64/include/asm/fb.h | 15 +--
1 file
Replace the architecture's fbdev helpers with the generic
ones from . No functional changes.
v2:
* use default implementation for fb_pgprotect() (Arnd)
Signed-off-by: Thomas Zimmermann
Cc: Russell King
---
arch/arm/include/asm/fb.h | 15 +--
1 file changed, 1 insertion(+),
Generic implementations of fb_pgprotect() and fb_is_primary_device()
have been in the source code for a long time. Prepare the header file
to make use of them.
Improve the code by using an inline function for fb_pgprotect()
and by removing include statements. The default mode set by
Various architectures provide with helpers for fbdev
framebuffer devices. Share the contained code where possible. There
is already , which implements generic (as in
'empty') functions of the fbdev helpers. The header was added in
commit aafe4dbed0bf ("asm-generic: add generic versions of common
Replace the architecture's fb_is_primary_device() with the generic
one from . No functional changes.
Signed-off-by: Thomas Zimmermann
Cc: Vineet Gupta
---
arch/arc/include/asm/fb.h | 11 +--
1 file changed, 5 insertions(+), 6 deletions(-)
diff --git a/arch/arc/include/asm/fb.h
On 06/04/23 15:38, Peter Zijlstra wrote:
> On Wed, Apr 05, 2023 at 01:45:02PM +0100, Valentin Schneider wrote:
>>
>> I've been hacking on something like this (CSD deferral for NOHZ-full),
>> and unfortunately this uses the CPU-local cfd_data storage thing, which
>> means any further
Hi
Am 05.04.23 um 17:53 schrieb Arnd Bergmann:
On Wed, Apr 5, 2023, at 17:05, Thomas Zimmermann wrote:
Generic implementations of fb_pgprotect() and fb_is_primary_device()
have been in the source code for a long time. Prepare the header file
to make use of them.
Improve the code by using an
On Thu, Apr 06, 2023 at 03:29:28PM +0200, Peter Zijlstra wrote:
> On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
>
> > > To actually hit this path you're doing something really dodgy.
> >
> > Apparently khugepaged is using the same infrastructure:
> >
> > $ grep
On Wed, Apr 05, 2023 at 01:45:02PM +0100, Valentin Schneider wrote:
> On 05/04/23 14:05, Frederic Weisbecker wrote:
> > static void smp_call_function_many_cond(const struct cpumask *mask,
> > smp_call_func_t func, void *info,
> > @@ -946,10 +948,13 @@ static
On Thu, Apr 06, 2023 at 09:49:22AM -0300, Marcelo Tosatti wrote:
> > > 2) Depends on the application and the definition of "occasional".
> > >
> > > For certain types of applications (for example PLC software or
> > > RAN processing), upon occurrence of an event, it is necessary to
> > >
On Thu, Apr 06, 2023 at 09:38:50AM -0300, Marcelo Tosatti wrote:
> > To actually hit this path you're doing something really dodgy.
>
> Apparently khugepaged is using the same infrastructure:
>
> $ grep tlb_remove_table khugepaged.c
> tlb_remove_table_sync_one();
>
On Wed, Apr 05, 2023 at 09:54:57PM +0200, Peter Zijlstra wrote:
> On Wed, Apr 05, 2023 at 04:43:14PM -0300, Marcelo Tosatti wrote:
>
> > Two points:
> >
> > 1) For a virtualized system, the overhead is not only of executing the
> > IPI but:
> >
> > VM-exit
> > run VM-exit code in host
>
On Wed, Apr 05, 2023 at 09:52:26PM +0200, Peter Zijlstra wrote:
> On Wed, Apr 05, 2023 at 04:45:32PM -0300, Marcelo Tosatti wrote:
> > On Wed, Apr 05, 2023 at 01:10:07PM +0200, Frederic Weisbecker wrote:
> > > On Wed, Apr 05, 2023 at 12:44:04PM +0200, Frederic Weisbecker wrote:
> > > > On Tue, Apr
check_return_regs_valid() is called from the middle of the irq exit
handling, which is all notrace, so mark it notrace also.
Rerported-by: Sachin Sant
Signed-off-by: Michael Ellerman
---
arch/powerpc/kernel/interrupt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
On Wed, Apr 05, 2023 at 03:18:32PM -0500, Bjorn Helgaas wrote:
> On Wed, Apr 05, 2023 at 11:28:27AM +0300, Andy Shevchenko wrote:
> > On Tue, Apr 04, 2023 at 11:11:01AM -0500, Bjorn Helgaas wrote:
> > > On Thu, Mar 30, 2023 at 07:24:27PM +0300, Andy Shevchenko wrote:
...
> > > I omitted
> > >
>
On 4/2/23 08:52, Vineet Gupta wrote:
> CC Shahab
>
> On 3/27/23 17:43, Arnd Bergmann wrote:
>> From: Arnd Bergmann
>>
>> Some architectures that need to invalidate buffers after bidirectional
>> DMA because of speculative prefetching only do a simpler writeback
>> before that DMA, while
From: Uros Bizjak
> Sent: 06 April 2023 09:39
>
> On Thu, Apr 6, 2023 at 10:26 AM David Laight wrote:
> >
> > From: Dave Hansen
> > > Sent: 05 April 2023 17:37
> > >
> > > On 4/5/23 07:17, Uros Bizjak wrote:
> > > > Add generic and target specific support for local{,64}_try_cmpxchg
> > > > and
On Thu, Apr 6, 2023 at 10:26 AM David Laight wrote:
>
> From: Dave Hansen
> > Sent: 05 April 2023 17:37
> >
> > On 4/5/23 07:17, Uros Bizjak wrote:
> > > Add generic and target specific support for local{,64}_try_cmpxchg
> > > and wire up support for all targets that use local_t infrastructure.
>
From: Dave Hansen
> Sent: 05 April 2023 17:37
>
> On 4/5/23 07:17, Uros Bizjak wrote:
> > Add generic and target specific support for local{,64}_try_cmpxchg
> > and wire up support for all targets that use local_t infrastructure.
>
> I feel like I'm missing some context.
>
> What are the actual
Since commit 85e031154c7c ("powerpc/bpf: Perform complete extra passes
to update addresses"), two additional passes are performed to avoid
space and CPU time wastage on powerpc. But these extra passes led to
WARN_ON_ONCE() hits in bpf_add_extable_entry(). Fix it by not adding
extable entries
> 2023年4月1日 10:15，Jiaxun Yang 写道：
>
> Hi all,
>
> This series split out second half of my previous series
> "[PATCH 0/4] MIPS DMA coherence fixes".
>
> It intends to use dma_default_coherent to determine the default coherency of
> devicetree probed devices instead of hardcoding it with
Michael Ellerman writes:
> On Sun, 19 Mar 2023 11:31:53 -0500, Rob Herring wrote:
>> Replace open coded reading of "reg" or of_get_address()/
>> of_translate_address() calls with a single call to
>> of_address_to_resource().
>>
>>
>
> Applied to powerpc/next.
>
> [1/1] powerpc: Use
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