Hi Michael,
On 2023/11/22 9:46, Michael Ellerman wrote:
Zhao Ke writes:
HeXin Tech Co. has applied for a new PVN from the OpenPower Community
for its new processor C2000. The OpenPower has assigned a new PVN
and this newly assigned PVN is 0x0066, add pvr register related
support for this PVN.
Aneesh Kumar K V writes:
...
>
> I am not sure whether we need to add all the complexity to enable supporting
> different fadump kernel
> version. Is that even a possible use case with fadump? Can't we always assume
> that with fadump the
> crash kernel and fadump kernel will be same version?
Vishal Chourasia writes:
> On 17/11/23 4:52 am, Michael Ellerman wrote:
>> Vishal Chourasia writes:
>>> On 15/11/23 5:46 pm, Aneesh Kumar K V wrote:
On 11/15/23 5:23 PM, Vishal Chourasia wrote:
> On 15/11/23 1:39 pm, Aneesh Kumar K.V wrote:
>> Vishal Chourasia writes:
>>
Timothy Pearson writes:
>
...
>
> So a little more detail on this, just to put it to rest properly vs.
> assuming hand analysis caught every possible pathway. :)
>
> The debugging that generates this stack trace also verifies the following in
> __giveup_fpu():
>
> 1.) tsk->thread.fp_state.fpr
Naveen N Rao writes:
> On Tue, Nov 21, 2023 at 10:54:36AM +1100, Michael Ellerman wrote:
>> Building with GCC 13 (which has -array-bounds enabled) there are several
>
> Thanks, gcc13 indeed helps reproduce the warnings.
Actually that part is no longer true since 0da6e5fd6c37 ("gcc: disable
On Tue, Nov 21, 2023 at 6:55 PM Aneesh Kumar K.V
wrote:
>
> "Nicholas Piggin" writes:
>
> > On Tue Nov 21, 2023 at 9:23 AM AEST, Masahiro Yamada wrote:
> >> crtsavres.o is linked to modules. However, as explained in commit
> >> d0e628cd817f ("kbuild: doc: clarify the difference between extra-y
>
kasprintf() returns a pointer to dynamically allocated memory
which can be NULL upon failure. Ensure the allocation was successful
by checking the pointer validity.
Signed-off-by: Kunwu Chan
---
arch/powerpc/sysdev/xics/icp-native.c | 2 ++
1 file changed, 2 insertions(+)
diff --git
Before running a guest, the host process (e.g., QEMU) FP/VEC registers
are saved if they were being used, similarly to when the kernel uses FP
registers. The guest values are then be loaded into regs, and the host
process registers will be restored lazily when it uses FP/VEC.
KVM HV has a bug
The bit 10 in TX_DPTH_CTRL register controls the TX clock rate.
If this bit is set, TX datapath clock should be = 2* TX bit rate.
If this bit is not set, TX datapath clock should be 10* TX bit rate.
As the spdif only case, we always use 2 * TX bit clock, so
this bit need to be set.
Zhao Ke writes:
> HeXin Tech Co. has applied for a new PVN from the OpenPower Community
> for its new processor C2000. The OpenPower has assigned a new PVN
> and this newly assigned PVN is 0x0066, add pvr register related
> support for this PVN.
>
> Signed-off-by: Zhao Ke
> Link:
>
Hi Anup,
On 2023-11-17 9:38 PM, Anup Patel wrote:
> Let us enable SBI based earlycon support in defconfigs for both RV32
> and RV64 so that "earlycon=sbi" can be used again.
>
> Signed-off-by: Anup Patel
> Reviewed-by: Andrew Jones
> ---
> arch/riscv/configs/defconfig | 1 +
>
Hi Anup,
On 2023-11-17 9:38 PM, Anup Patel wrote:
> Let us provide SBI debug console helper routines which can be
> shared by serial/earlycon-riscv-sbi.c and hvc/hvc_riscv_sbi.c.
>
> Signed-off-by: Anup Patel
> ---
> arch/riscv/include/asm/sbi.h | 5 +
> arch/riscv/kernel/sbi.c | 43
Hi Anup,
On 2023-11-17 9:38 PM, Anup Patel wrote:
> We extend the existing RISC-V SBI earlycon support to use the new
> RISC-V SBI debug console extension.
>
> Signed-off-by: Anup Patel
> Reviewed-by: Andrew Jones
> ---
> drivers/tty/serial/Kconfig | 2 +-
>
Hi Anup,
On 2023-11-17 9:38 PM, Anup Patel wrote:
> The functions sbi_console_putchar() and sbi_console_getchar() are
> not defined when CONFIG_RISCV_SBI_V01 is disabled so let us add
> stub of these functions to avoid "#ifdef" on user side.
>
> Signed-off-by: Anup Patel
> Reviewed-by: Andrew
tldr; Just FYI, I'm carrying this on the perf tools tree.
Full explanation:
There used to be no copies, with tools/ code using kernel headers
directly. From time to time tools/perf/ broke due to legitimate kernel
hacking. At some point Linus complained about such direct usage. Then we
adopted
On Wed, Nov 08, 2023 at 01:58:41PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann
>
> This function is only called locally and should always have been static:
>
> drivers/usb/host/fsl-mph-dr-of.c:291:5: error: no previous prototype for
> 'fsl_usb2_mpc5121_init' [-Werror=missing-prototypes]
The compiler doesn't know that `32` is an offset into the Hash table:
56 struct Hash_ctx {
57 u8 H[16]; /* subkey */
58 u8 Htable[256]; /* Xi, Hash table(offset 32) */
59 };
So, it legitimately complains about a potential out-of-bounds issue
if `256 bytes` are accessed
On Tue, 21 Nov 2023 13:25:11 +0800, Chancel Liu wrote:
> Add a property to list audio sound widgets which are marked ignoring
> system suspend. Paths between these endpoints are still active over
> suspend of the main application processor that the current operating
> system is running.
>
>
On Mon, Nov 20, 2023 at 3:09 PM Mark Brown wrote:
>
> On Wed, Nov 08, 2023 at 05:08:01PM -0800, Anish Moorthy wrote:
> > Applying [1] and [2] reveals that this also breaks non-x86 builds- the
> > MEM_REGION_GPA/SLOT definitions are guarded behind an #ifdef
> > __x86_64__, while the usages
On Tue, 21 Nov 2023 08:43:30 +0100 Herve Codina wrote:
> I plan to send the v10 with the patch 23 fixed.
> Based on that v10, some patches (21 to 25 at least) could be applied and
> I will remove them for the future v11.
> I think it will be easier to follow if I iterate on the series removing
>
On Mon, Nov 20, 2023 at 12:26:24AM -0800, Christoph Hellwig wrote:
> On Wed, Nov 15, 2023 at 08:29:02PM -0500, Peter Xu wrote:
> > Hugepd format is only used in PowerPC with hugetlbfs. In commit
> > a6e79df92e4a ("mm/gup: disallow FOLL_LONGTERM GUP-fast writing to
> > file-backed mappings"), we
On Tue, Nov 21, 2023 at 10:54:36AM +1100, Michael Ellerman wrote:
> Building with GCC 13 (which has -array-bounds enabled) there are several
Thanks, gcc13 indeed helps reproduce the warnings.
> warnings in sstep.c along the lines of:
>
> In function ‘do_byte_reverse’,
> inlined from
On 11/21/23 at 07:53am, Ignat Korchagin wrote:
> On Tue, Nov 21, 2023 at 1:50 AM Baoquan He wrote:
> >
> > Eric DeVolder's Oracle mail address is not available anymore, add his
> > current mail address he told me.
>
> Thank you!
>
> > On 11/20/23 at 10:52pm, Ignat Korchagin wrote:
> > > Good
On Tue, Nov 21, 2023 at 7:53 AM Ignat Korchagin wrote:
>
> On Tue, Nov 21, 2023 at 1:50 AM Baoquan He wrote:
> >
> > Eric DeVolder's Oracle mail address is not available anymore, add his
> > current mail address he told me.
>
> Thank you!
>
> > On 11/20/23 at 10:52pm, Ignat Korchagin wrote:
> >
On 11/21/23 11:03, Shengjiu Wang wrote:
> On Tue, Nov 21, 2023 at 5:22 PM Hans Verkuil wrote:
>>
>> On 21/11/2023 08:37, Shengjiu Wang wrote:
>>> Audio signal processing also has the requirement for memory to
>>> memory similar as Video.
>>>
>>> This asrc memory to memory (memory ->asrc->memory)
On Tue, Nov 21, 2023 at 5:20 PM Hans Verkuil wrote:
>
> On 21/11/2023 08:37, Shengjiu Wang wrote:
> > Implement the ASRC memory to memory function using
> > the v4l2 framework, user can use this function with
> > v4l2 ioctl interface.
> >
> > User send the output and capture buffer to driver and
On Tue, Nov 21, 2023 at 5:22 PM Hans Verkuil wrote:
>
> On 21/11/2023 08:37, Shengjiu Wang wrote:
> > Audio signal processing also has the requirement for memory to
> > memory similar as Video.
> >
> > This asrc memory to memory (memory ->asrc->memory) case is a non
> > real time use case.
> >
>
"Nicholas Piggin" writes:
> On Tue Nov 21, 2023 at 9:23 AM AEST, Masahiro Yamada wrote:
>> crtsavres.o is linked to modules. However, as explained in commit
>> d0e628cd817f ("kbuild: doc: clarify the difference between extra-y
>> and always-y"), 'make modules' does not build extra-y.
>>
>> For
This means:
* move outbuf to the end of struct hvc_struct and convert from pointer
to flexible array (the structure is smaller now)
* use struct_size() at the allocation site
* align outbuf in the struct instead of ALIGN() at kzalloc()
And apart from the above, use u8 instead of char (which are
There is a helper for memcpy(buffer)+memset(the_rest). Use it for
simplicity.
And add a comment why we are doing the copy in the first place.
Signed-off-by: Jiri Slaby (SUSE)
Cc: Laurentiu Tudor
Cc: linuxppc-dev@lists.ozlabs.org
---
drivers/tty/ehv_bytechan.c | 7 +--
1 file changed, 5
This is a series to fix/clean up some obvious issues I revealed during
u8+size_t conversions (to be posted later).
Cc: "David S. Miller"
Cc: Eric Dumazet
Cc: Ivan Kokshaysky
Cc: Jakub Kicinski
Cc: Jan Kara
Cc: Laurentiu Tudor
Cc: linux-al...@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
On 21/11/2023 08:37, Shengjiu Wang wrote:
> Audio signal processing also has the requirement for memory to
> memory similar as Video.
>
> This asrc memory to memory (memory ->asrc->memory) case is a non
> real time use case.
>
> User fills the input buffer to the asrc module, after conversion,
On 21/11/2023 08:37, Shengjiu Wang wrote:
> Implement the ASRC memory to memory function using
> the v4l2 framework, user can use this function with
> v4l2 ioctl interface.
>
> User send the output and capture buffer to driver and
> driver store the converted data to the capture buffer.
>
> This
On Sun, Nov 19, 2023 at 11:16 PM Jiri Slaby wrote:
>
> On 18. 11. 23, 4:38, Anup Patel wrote:
> > diff --git a/drivers/tty/hvc/hvc_riscv_sbi.c
> > b/drivers/tty/hvc/hvc_riscv_sbi.c
> > index 31f53fa77e4a..697c981221b5 100644
> > --- a/drivers/tty/hvc/hvc_riscv_sbi.c
> > +++
On Tue, Nov 21, 2023 at 1:50 AM Baoquan He wrote:
>
> Eric DeVolder's Oracle mail address is not available anymore, add his
> current mail address he told me.
Thank you!
> On 11/20/23 at 10:52pm, Ignat Korchagin wrote:
> > Good day!
> >
> > We have recently started to evaluate Linux 6.6 and
Hello,
On Fri, Nov 17, 2023 at 11:14:27PM -0600, Nathan Lynch via B4 Relay wrote:
> From: Nathan Lynch
>
> PowerVM LPARs may retrieve Vital Product Data (VPD) for system
> components using the ibm,get-vpd RTAS function.
>
> We can expose this to user space with a /dev/papr-vpd character
>
Audio memory to memory virtual driver use video memory to memory
virtual driver vim2m.c as example. The main difference is
device type is VFL_TYPE_AUDIO and device cap type is V4L2_CAP_AUDIO_M2M.
The device_run function is a dummy function, which is simply
copy the data from input buffer to
Implement the ASRC memory to memory function using
the v4l2 framework, user can use this function with
v4l2 ioctl interface.
User send the output and capture buffer to driver and
driver store the converted data to the capture buffer.
This feature can be shared by ASRC and EASRC drivers
Add and document a media entity type for audio resampler.
It is MEDIA_ENT_F_PROC_AUDIO_RESAMPLER.
Signed-off-by: Shengjiu Wang
---
Documentation/userspace-api/media/mediactl/media-types.rst | 6 ++
include/uapi/linux/media.h | 1 +
2 files changed, 7
Declare the interface types that will be used by Audio.
The type is MEDIA_INTF_T_V4L_AUDIO.
Signed-off-by: Shengjiu Wang
---
.../userspace-api/media/mediactl/media-types.rst| 5 +
drivers/media/v4l2-core/v4l2-dev.c | 4
drivers/media/v4l2-core/v4l2-mem2mem.c
Add V4L2_CID_M2M_AUDIO_SOURCE_RATE and V4L2_CID_M2M_AUDIO_DEST_RATE
new IDs for rate control.
Add V4L2_CID_M2M_AUDIO_SOURCE_RATE_OFFSET and
V4L2_CID_M2M_AUDIO_DEST_RATE_OFFSET for clock drift.
Signed-off-by: Shengjiu Wang
---
.../media/v4l/ext-ctrls-audio-m2m.rst | 20
The Audio M2M class includes controls for audio memory-to-memory
use cases. The controls can be used for audio codecs, audio
preprocessing, audio postprocessing.
Signed-off-by: Shengjiu Wang
---
.../userspace-api/media/v4l/common.rst| 1 +
.../media/v4l/ext-ctrls-audio-m2m.rst
The audio sample format definition is from alsa,
the header file is include/uapi/sound/asound.h, but
don't include this header file directly, because in
user space, there is another copy in alsa-lib.
There will be conflict in userspace for include
videodev2.h & asound.h and asoundlib.h
Here still
Audio signal processing has the requirement for memory to
memory similar as Video.
This patch is to add this support in v4l2 framework, defined
new buffer type V4L2_BUF_TYPE_AUDIO_CAPTURE and
V4L2_BUF_TYPE_AUDIO_OUTPUT, defined new format v4l2_audio_format
for audio case usage.
The created audio
V4L2_CAP_AUDIO_M2M is similar to V4L2_CAP_VIDEO_M2M flag.
It is used for audio memory to memory case.
Signed-off-by: Shengjiu Wang
---
Documentation/userspace-api/media/v4l/vidioc-querycap.rst| 3 +++
Documentation/userspace-api/media/videodev2.h.rst.exceptions | 1 +
Register m2m platform device, that user can
use M2M feature.
Defined platform data structure and platform
driver name.
Signed-off-by: Shengjiu Wang
Acked-by: Mark Brown
---
include/sound/fsl_asrc_common.h | 23 +++
sound/soc/fsl/fsl_asrc.c| 18 ++
2
Register m2m platform device,that user can
use M2M feature.
Signed-off-by: Shengjiu Wang
Acked-by: Mark Brown
---
sound/soc/fsl/fsl_easrc.c | 19 +++
1 file changed, 19 insertions(+)
diff --git a/sound/soc/fsl/fsl_easrc.c b/sound/soc/fsl/fsl_easrc.c
index
Move fsl_asrc_common.h to include/sound that it can be
included from other drivers.
Signed-off-by: Shengjiu Wang
Acked-by: Mark Brown
---
{sound/soc/fsl => include/sound}/fsl_asrc_common.h | 0
sound/soc/fsl/fsl_asrc.h | 2 +-
sound/soc/fsl/fsl_asrc_dma.c
ASRC can be used on memory to memory case, define several
functions for m2m usage.
m2m_prepare: prepare for the start step
m2m_start: the start step
m2m_unprepare: unprepare for stop step, optional
m2m_stop: stop step
m2m_check_format: check format is supported or not
m2m_calc_out_len: calculate
ASRC can be used on memory to memory case, define several
functions for m2m usage and export them as function pointer.
Signed-off-by: Shengjiu Wang
Acked-by: Mark Brown
---
sound/soc/fsl/fsl_easrc.c | 214 ++
sound/soc/fsl/fsl_easrc.h | 4 +
2 files
Audio signal processing also has the requirement for memory to
memory similar as Video.
This asrc memory to memory (memory ->asrc->memory) case is a non
real time use case.
User fills the input buffer to the asrc module, after conversion, then asrc
sends back the output buffer to user. So it is
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