On 04/23/20 at 08:55am, Mike Rapoport wrote:
> On Thu, Apr 23, 2020 at 10:57:20AM +0800, Baoquan He wrote:
> > On 04/23/20 at 10:53am, Baoquan He wrote:
> > > On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> > > > From: Mike Rapoport
> > > >
> > > > Some architectures (e.g. ARC) have the
https://bugzilla.kernel.org/show_bug.cgi?id=206695
Dennis Clarke (dcla...@blastwave.org) changed:
What|Removed |Added
CC|
This series add a new misc module that act as an interface for user level
applications to access SRAM memory dynamically. Freescale 85xx Cache-SRAM
is exact an example.
This is extremely helpful for the user level applications that require
high performance memory accesses, such as some embedded
New module which registers its memory allocation and free APIs to the
sram_dynamic module, which would create a device of struct sram_device
type to act as an interface for user level applications to access the
backend hardware device, fsl_85xx_cache_sram, which is drived by the
Hi Christophe,
@@ -101,14 +129,20 @@ static bool is_ptrace_bp(struct perf_event *bp)
*/
void arch_unregister_hw_breakpoint(struct perf_event *bp)
{
+ int i;
+
This declaration should be in the block using it.
/*
* If the breakpoint is unregistered between a
Hi Ravi,
Le 24/04/2020 à 05:32, Ravi Bangoria a écrit :
Hi Christophe,
@@ -101,14 +129,20 @@ static bool is_ptrace_bp(struct perf_event *bp)
*/
void arch_unregister_hw_breakpoint(struct perf_event *bp)
{
+ int i;
+
This declaration should be in the block using it.
/*
Include "linux/of_address.h" to fix the compile error for
mpc85xx_l2ctlr_of_probe() when compiling fsl_85xx_cache_sram.c.
CC arch/powerpc/sysdev/fsl_85xx_l2ctlr.o
arch/powerpc/sysdev/fsl_85xx_l2ctlr.c: In function ‘mpc85xx_l2ctlr_of_probe’:
arch/powerpc/sysdev/fsl_85xx_l2ctlr.c:90:11:
Include linux/io.h into fsl_85xx_cache_sram.c to fix the
implicit-declaration compile error when building Cache-Sram.
arch/powerpc/sysdev/fsl_85xx_cache_sram.c: In function ‘instantiate_cache_sram’:
arch/powerpc/sysdev/fsl_85xx_cache_sram.c:97:26: error: implicit declaration of
function
Nathan Chancellor writes:
> On Tue, Apr 14, 2020 at 11:57:31PM +1000, Herbert Xu wrote:
>> On Mon, Apr 13, 2020 at 12:50:42PM -0700, Nathan Chancellor wrote:
>> > 0day reports over and over on an powerpc randconfig with clang:
>> >
>> > lib/mpi/generic_mpih-mul1.c:37:13: error: invalid use of a
Export rtas_error_rc() so that it can be used by other users of
rtas_call() (which is already exported).
Signed-off-by: Sam Bobroff
---
v3 * New in this version.
arch/powerpc/include/asm/rtas.h | 1 +
arch/powerpc/kernel/rtas.c | 3 ++-
2 files changed, 3 insertions(+), 1 deletion(-)
Hi everyone,
Here are some fixes and cleanups that have come from other work but that I
think stand on their own.
Only one patch ("Release EEH device state synchronously", suggested by Oliver
O'Halloran) is a significant change: it moves the cleanup of some EEH device
data out of the (possibly
EEH device state is currently removed (by eeh_remove_device()) during
the device release handler, which is invoked as the device's reference
count drops to zero. This may take some time, or forever, as other
threads may hold references.
However, the PCI device state is released synchronously by
If a device is hot unplgged during EEH recovery, it's possible for the
RTAS call to ibm,configure-pe in pseries_eeh_configure() to return
parameter error (-3), however negative return values are not checked
for and this leads to an infinite loop.
Fix this by correctly bailing out on negative
A generic User-Kernel interface module that allows a misc device created
when a backend SRAM hardware device driver registers its APIs to support
file operations of ioctl and mmap for user space applications to allocate
SRAM memory, mmap it to process address space and free it then after.
It is
Le 24/04/2020 à 04:45, Wang Wenhu a écrit :
New module which registers its memory allocation and free APIs to the
sram_dynamic module, which would create a device of struct sram_device
type to act as an interface for user level applications to access the
backend hardware device,
> On Apr 21, 2020, at 1:35 PM, Naveen N. Rao
> wrote:
>
> Since commit c55d7b5e64265f ("powerpc: Remove STRICT_KERNEL_RWX
> incompatibility with RELOCATABLE"), powerpc kernels with
> -mprofile-kernel can crash in certain scenarios with a trace like below:
>
>BUG: Unable to handle kernel
Function instantiate_cache_sram should not be linked into the init
section for its caller mpc85xx_l2ctlr_of_probe is none-__init.
Cc: Greg Kroah-Hartman
Cc: Arnd Bergmann
Cc: Christophe Leroy
Cc: Scott Wood
Cc: Michael Ellerman
Cc: linuxppc-dev@lists.ozlabs.org
Fixes: 6db92cc9d07d
https://bugzilla.kernel.org/show_bug.cgi?id=199471
--- Comment #23 from Michael Ellerman (mich...@ellerman.id.au) ---
The memory leak is a separate issue, see bug #206695.
Can anyone verify that bcf3588d8ed fixes the original issue?
--
You are receiving this mail because:
You are watching the
Hi Christophe,
max_len = DAWR_MAX_LEN;
/* DAWR region can't cross 512 bytes boundary */
- if ((start_addr >> 9) != (end_addr >> 9))
+ if ((start_addr >> 9) != ((end_addr - 1) >> 9))
What about:
if (ALIGN(start_addr, SZ_512M) != ALIGN(end - 1, SZ_512M))
Le 24/04/2020 à 04:45, Wang Wenhu a écrit :
A generic User-Kernel interface module that allows a misc device created
when a backend SRAM hardware device driver registers its APIs to support
file operations of ioctl and mmap for user space applications to allocate
SRAM memory, mmap it to
From: Prem Shanker Jha
The commit is a merger of commits that makes the following changes:
1. Commit fixes some issues with code found during integration test
- replacement of addi with xor instruction during self save API.
- fixing instruction generation for MFMSR during self save
-
On Tue, Apr 14, 2020 at 03:13:23PM +0200, Christoph Hellwig wrote:
> Just use vmap instead of messing with vmalloc internals.
>
> Signed-off-by: Christoph Hellwig
> Acked-by: Peter Zijlstra (Intel)
Thanks!
Acked-by: Sakari Ailus
--
Sakari Ailus
From: Prem Shanker Jha
Commit defines a new API primarily intended for OPAL to determine
cpu register save API's compatibility with HOMER layout and
self save restore. It can help OPAL determine if version of
API integrated with OPAL is different from hostboot.
Change-Id:
v7: https://lists.ozlabs.org/pipermail/skiboot/2020-April/016763.html
Changelog
v6 --> v7
1. Simplified approach. Instead of advertising support bitmask for
each SPR, advertising support only for the presence of the new
self-save API Complete design specification is detailed below
in the
The commit makes the self save API available outside the firmware by defining
an OPAL wrapper.
This wrapper has a similar interface to that of self restore and expects the
cpu pir, SPR number, minus the value of that SPR to be passed in its
paramters and returns OPAL_SUCCESS on success. It adds a
On Thu, 23 Apr 2020 11:01:43 +0800
Tianjia Zhang wrote:
> On 2020/4/23 0:04, Cornelia Huck wrote:
> > On Wed, 22 Apr 2020 17:58:04 +0200
> > Christian Borntraeger wrote:
> >
> >> On 22.04.20 15:45, Cornelia Huck wrote:
> >>> On Wed, 22 Apr 2020 20:58:04 +0800
> >>> Tianjia Zhang wrote:
>
v7: https://lkml.org/lkml/2020/4/16/247
Changelog
v7 --> v8
Simplified kernel design. Introducing an approach which eliminates
the need for having support and preference for SPRs that need to be
saved. Instead a simple self-save property is advertised and if it
exists then self-save is called
On 2020/4/23 19:00, Christian Borntraeger wrote:
On 23.04.20 12:58, Tianjia Zhang wrote:
On 2020/4/23 18:39, Cornelia Huck wrote:
On Thu, 23 Apr 2020 11:01:43 +0800
Tianjia Zhang wrote:
On 2020/4/23 0:04, Cornelia Huck wrote:
On Wed, 22 Apr 2020 17:58:04 +0200
Christian Borntraeger
On 23.04.20 12:58, Tianjia Zhang wrote:
>
>
> On 2020/4/23 18:39, Cornelia Huck wrote:
>> On Thu, 23 Apr 2020 11:01:43 +0800
>> Tianjia Zhang wrote:
>>
>>> On 2020/4/23 0:04, Cornelia Huck wrote:
On Wed, 22 Apr 2020 17:58:04 +0200
Christian Borntraeger wrote:
> On
On 22/04/2020 23:36, Rich Felker wrote:
> On Wed, Apr 22, 2020 at 04:18:36PM +1000, Nicholas Piggin wrote:
>> Yeah I had a bit of a play around with musl (which is very nice code I
>> must say). The powerpc64 syscall asm is missing ctr clobber by the way.
>> Fortunately adding it doesn't
https://bugzilla.kernel.org/show_bug.cgi?id=206695
Michael Ellerman (mich...@ellerman.id.au) changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
On Mon, Apr 20, 2020 at 03:46:35PM -0700, Tyrel Datwyler wrote:
> On 4/7/20 1:47 AM, Gautham R. Shenoy wrote:
> > From: "Gautham R. Shenoy"
> >
> > Hi,
> >
> > This is the fifth version of the patches to track and expose idle PURR
> > and SPURR ticks. These patches are required by tools such as
This commit introduces and leverages the Self save API. The difference
between self-save and self-restore is that the value to be saved for the
SPR does not need to be passed to the call.
Add the new Self Save OPAL API call in the list of OPAL calls.
The device tree is parsed looking for the
On 2020/4/23 18:39, Cornelia Huck wrote:
On Thu, 23 Apr 2020 11:01:43 +0800
Tianjia Zhang wrote:
On 2020/4/23 0:04, Cornelia Huck wrote:
On Wed, 22 Apr 2020 17:58:04 +0200
Christian Borntraeger wrote:
On 22.04.20 15:45, Cornelia Huck wrote:
On Wed, 22 Apr 2020 20:58:04 +0800
https://bugzilla.kernel.org/show_bug.cgi?id=206695
Michael Ellerman (mich...@ellerman.id.au) changed:
What|Removed |Added
Status|NEW |ASSIGNED
https://bugzilla.kernel.org/show_bug.cgi?id=199471
Wolfram Sang (w...@the-dreams.de) changed:
What|Removed |Added
Status|ASSIGNED|RESOLVED
create_cpu_loop() calls smu_sat_get_sdb_partition() which does
kmalloc() and returns the allocated buffer. In fact it's called twice,
and neither buffer is freed.
This results in a memory leak as reported by Erhard:
unreferenced object 0xc0047081f840 (size 32):
comm "kwindfarm", pid
On Thu, Apr 23, 2020 at 11:14:54AM +0800, Baoquan He wrote:
> On 04/12/20 at 10:48pm, Mike Rapoport wrote:
> > From: Mike Rapoport
> >
> > The free_area_init_node() is only used by x86 to initialize a memory-less
> > nodes.
> > Make its name reflect this and drop all the function parameters
From: Colin Ian King
There is a spelling mistake in a deb_dbg message, fix it.
Signed-off-by: Colin Ian King
---
sound/soc/fsl/fsl_easrc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index 233f26ff885c..97658e1f4989
From: Balamuruhan S
Change use of %p to %pK when printing address of the instruction slot so
that the actual kernel address is visible for privileged users.
Signed-off-by: Balamuruhan S
Signed-off-by: Naveen N. Rao
---
arch/powerpc/kernel/optprobes.c | 2 +-
1 file changed, 1 insertion(+), 1
Change prinkt format specifier from %lx to %pK to indicate kernel
pointer, and to hide the addresses from unprivileged users.
Signed-off-by: Naveen N. Rao
---
arch/powerpc/kernel/hw_breakpoint.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git
Le 23/04/2020 à 17:09, Naveen N. Rao a écrit :
With STRICT_KERNEL_RWX, we are currently ignoring return value from
__patch_instruction() in do_patch_instruction(), resulting in the error
not being propagated back. Fix the same.
Good patch.
Be aware that there is ongoing work which tend to
Hi Sathyanarayanan,
On Wed, 2020-04-22 at 15:50 -0700, Kuppuswamy, Sathyanarayanan wrote:
>
> On 4/20/20 2:37 PM, Jon Derrick wrote:
> > The existing portdrv model prevents DPC services without either OS
> > control (_OSC) granted to AER services, a Host Bridge requesting Native
> > AER, or
On Thu, Apr 23, 2020 at 09:13:57AM -0300, Adhemerval Zanella wrote:
>
>
> On 22/04/2020 23:36, Rich Felker wrote:
> > On Wed, Apr 22, 2020 at 04:18:36PM +1000, Nicholas Piggin wrote:
> >> Yeah I had a bit of a play around with musl (which is very nice code I
> >> must say). The powerpc64 syscall
On Thu, Apr 23, 2020 at 01:35:01PM -0300, Adhemerval Zanella wrote:
>
>
> On 23/04/2020 13:18, Rich Felker wrote:
> > On Thu, Apr 23, 2020 at 09:13:57AM -0300, Adhemerval Zanella wrote:
> >>
> >>
> >> On 22/04/2020 23:36, Rich Felker wrote:
> >>> On Wed, Apr 22, 2020 at 04:18:36PM +1000,
On 23/04/2020 13:43, Rich Felker wrote:
> On Thu, Apr 23, 2020 at 01:35:01PM -0300, Adhemerval Zanella wrote:
>>
>>
>> On 23/04/2020 13:18, Rich Felker wrote:
>>> On Thu, Apr 23, 2020 at 09:13:57AM -0300, Adhemerval Zanella wrote:
On 22/04/2020 23:36, Rich Felker wrote:
> On
Introduce a macro PATCH_INSN() to simplify instruction patching, and to
make the error messages more uniform and useful:
- print an error message that includes the original return value
- print the function name and line numbers, so that the offending
location is clear
- always return -EPERM,
With STRICT_KERNEL_RWX, we are currently ignoring return value from
__patch_instruction() in do_patch_instruction(), resulting in the error
not being propagated back. Fix the same.
Fixes: 37bc3e5fd764f ("powerpc/lib/code-patching: Use alternate map for
patch_instruction()")
Signed-off-by: Naveen
Update use of printk format specifiers in ftrace code, so that addresses
are made visible for privileged users, or always for pr_devel() code:
- change %lx to use %px or %pK
- change %p to %px or %pK
- add %pS in certain places to show the symbol as well
Signed-off-by: Balamuruhan S
Le 23/04/2020 à 17:09, Naveen N. Rao a écrit :
Introduce a macro PATCH_INSN() to simplify instruction patching, and to
make the error messages more uniform and useful:
- print an error message that includes the original return value
- print the function name and line numbers, so that the
On Tue, Apr 14, 2020 at 11:57:31PM +1000, Herbert Xu wrote:
> On Mon, Apr 13, 2020 at 12:50:42PM -0700, Nathan Chancellor wrote:
> > 0day reports over and over on an powerpc randconfig with clang:
> >
> > lib/mpi/generic_mpih-mul1.c:37:13: error: invalid use of a cast in a
> > inline asm context
Hi Sathyanarayanan,
On Wed, 2020-04-22 at 15:48 -0700, Kuppuswamy, Sathyanarayanan wrote:
>
> On 4/20/20 2:37 PM, Jon Derrick wrote:
> > Some platforms have a mix of ports whose capabilities can be negotiated
> > by _OSC, and some ports which are not described by ACPI and instead
> > managed by
This series changes printk format specifiers from bare %p to %px/%pK in
ftrace, kprobes and hw bkpts code. In addition, use of %lx is also
changed over to conform to the recommended practice.
This series applies on top of the below patch series:
Le 23/04/2020 à 17:09, Naveen N. Rao a écrit :
patch_instruction() can fail in some scenarios. Add appropriate error
checking so that such failures are caught and logged, and suitable error
code is returned.
Fixes: d07df82c43be8 ("powerpc/kprobes: Move kprobes over to
patch_instruction()")
On 23/04/2020 13:18, Rich Felker wrote:
> On Thu, Apr 23, 2020 at 09:13:57AM -0300, Adhemerval Zanella wrote:
>>
>>
>> On 22/04/2020 23:36, Rich Felker wrote:
>>> On Wed, Apr 22, 2020 at 04:18:36PM +1000, Nicholas Piggin wrote:
Yeah I had a bit of a play around with musl (which is very
On Thu, 23 Apr 2020 09:39:22 +0100, Colin King wrote:
> From: Colin Ian King
>
> There is a spelling mistake in a deb_dbg message, fix it.
>
> Signed-off-by: Colin Ian King
> ---
> sound/soc/fsl/fsl_easrc.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> [...]
Applied to
This patchset updates error handling with patch_instruction(). The first
patch fixes an issue with do_patch_instruction() with STRICT_KERNEL_RWX
wherein errors were not being returned back. The second and third
patches update users of patch_instruction() in ftrace and kprobes code
to properly
patch_instruction() can fail in some scenarios. Add appropriate error
checking so that such failures are caught and logged, and suitable error
code is returned.
Fixes: d07df82c43be8 ("powerpc/kprobes: Move kprobes over to
patch_instruction()")
Fixes: f3eca95638931 ("powerpc/kprobes/optprobes:
On Thu, Apr 23, 2020 at 04:24:38PM +0530, Pratik Rajesh Sampat wrote:
> The commit makes the self save API available outside the firmware by defining
> an OPAL wrapper.
> This wrapper has a similar interface to that of self restore and expects the
> cpu pir, SPR number, minus the value of that SPR
On Thu, Apr 23, 2020 at 02:15:58PM -0300, Adhemerval Zanella wrote:
>
>
> On 23/04/2020 13:43, Rich Felker wrote:
> > On Thu, Apr 23, 2020 at 01:35:01PM -0300, Adhemerval Zanella wrote:
> >>
> >>
> >> On 23/04/2020 13:18, Rich Felker wrote:
> >>> On Thu, Apr 23, 2020 at 09:13:57AM -0300,
On Thu, Apr 23, 2020 at 04:25:57PM +0530, Pratik Rajesh Sampat wrote:
> This commit introduces and leverages the Self save API. The difference
> between self-save and self-restore is that the value to be saved for the
> SPR does not need to be passed to the call.
>
> Add the new Self Save OPAL
generic-64bit_defconfig
pariscgeneric-32bit_defconfig
parisc allyesconfig
parisc allmodconfig
parisc randconfig-a001-20200423
alpharandconfig-a001-20200423
mips randconfig-a001
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