Support devicetree by adding a snd_soc_of_mach array, specifying SOF
topologies for a generic MT8195 machine and for Google Tomato
Chromebooks.
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-6-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add the .mailbox_{read,write} generic callbacks for SOF IPC and, while
at it, also change the ipc_msg_data callback to use the SOF API
sof_ipc_msg_data() instead of the custom function mt8195_ipc_msg_data().
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220906092727.37324-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Cezary Rojewski <cezary.rojewski@intel.com>:
Continuation of recent upstream discussion [1] regarding user string
tokenization.
First, parse_int_array_user() is introduced to allow for splitting
specified user string into a sequence of integers. Makes use of
get_options() internally so the parsing logic is not duplicated.
With that done, redundant parts of the sound driver are removed.
Originally similar functionality was added for the SOF sound driver. As
more users are on the horizon, it is desirable to update existing
string_helpers code and provide a unified solution.
Make use of global integer-array parsing helper instead of the internal
one as both serve same purpose. With that, both strsplit_u32() and
tokenize_input() become unused so remove them.
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220904102840.862395-3-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
From current design in sof_machine_check the SOF can only support
ACPI type machine.
In sof_machine_check if there is no ACPI machine exist, the function
will return -ENODEV directly, that's we don't expected if we do not
base on ACPI machine.
So we add a new function named sof_of_machine_select that we can pass
sof_machine_check and obtain info required by snd_sof_new_platform_drv.
Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220903032151.13664-1-chunxu.li@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Added a new copy function used to copy data to user buffer
in the case of compress capture.
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Link: https://lore.kernel.org/r/20220822101502.17644-3-laurentiu.mihalcea@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Since we're preparing to add support for compress capture,
we need to move the content of sof_compr_copy into a
separate function which handles the playback direction just
like the initial sof_compr_copy.
Reviewed-by: Paul Olaru <paul.olaru@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Link: https://lore.kernel.org/r/20220822101502.17644-2-laurentiu.mihalcea@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
After using 'res_node' returned by of_parse_phandle(), of_node_put()
need be called to decrease the refcount.
Fixes: fb5319af6a ("ASoC: SOF: imx: Add i.MX8ULP HW support")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Link: https://lore.kernel.org/r/20220824013234.375738-2-yangyingliang@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
To make sure that we start from a clean state next time when the DSP is
powered up after a firmware crash or boot failure we must skip the IMR
booting attempt.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220823124359.24865-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Firmware image must start with an extended manifest. Add a check to make
sure that the image does contain it.
The magic number (the first u32 of a firmware image if manifest is present)
for an IPC4 image must be 0x31454124 (ASCI "$AE1").
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220823124219.927-1-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Peter Ujfalusi <peter.ujfalusi@linux.intel.com>:
Hi,
The FSR (Firmware State Register) holds the ROM state information, it does not
contain error information.
The FSR itself is a bit more complicated as well as the state depends on the
module currently in use.
The error code from ROM or the status code from the firmware is located at the
next register.
Fix the handling of the FSR in order to provide usable and human readable (in
most cases) report on the status and error.
Regards,
Peter
---
Peter Ujfalusi (3):
ASoC: SOF: Intel: hda: Correct the ROM/FW state reporting code
ASoC: SOF: Intel: hda-loader: Use the FSR state definitions during
bootup
ASoC: SOF: Intel: hda: Drop no longer used ROM state definitions
sound/soc/sof/intel/hda-loader.c | 10 +--
sound/soc/sof/intel/hda.c | 147 ++++++++++++++++++++++++++-----
sound/soc/sof/intel/hda.h | 69 +++++++++++++--
3 files changed, 194 insertions(+), 32 deletions(-)
--
2.37.0
From current design in sof_machine_check and snd_sof_new_platform_drv,
the SOF can only support ACPI type machine.
1. In sof_machine_check if there is no ACPI machine exist, the function
will return -ENODEV directly, that's we don't expected if we do not
base on ACPI machine.
2. In snd_sof_new_platform_drv the component driver need a driver name
to do ignore_machine, currently the driver name is obtained from
machine->drv_name, and the type of machine is snd_soc_acpi_mach.
So we add a new function named sof_of_machine_select that we can pass
sof_machine_check and obtain info required by snd_sof_new_platform_drv.
Signed-off-by: Chunxu Li <chunxu.li@mediatek.com>
Link: https://lore.kernel.org/r/20220805070449.6611-2-chunxu.li@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
All code have been switched to use the new FSR defines and macros for
ROM/FW state tracking.
The old definitions can be dropped now.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220712125734.30512-4-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Switch to use the newly added FSR (Firmware State Register) definitions
for DSP state handling and targeting.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220712125734.30512-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
dai_posn is set but never used. Initial intention was
to use dai_posn to shorthen one code line but it looks fine
without it too.
Fixes: c1a731c713 ("ASoC: SOF: compress: Add support for computing timestamps")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220822174937.254873-1-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This adds skeleton support for the audio DSP hardware found on
NXP i.MX8ULP platform.
On i.MX8ULP resources (clocks, power, etc) are managed by the
System Integration Module in LPAV domain and XRDC which is handled
by arm trusted firmware.
Signed-off-by: Zhang Peng <peng.zhang_8@nxp.com>
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/1660787634-28550-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We compute the number of pcm_io_frames by dividing the
dai position to size of a frame (channels * sample size).
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-5-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The purpose of this change is to enable the saving of the
channel count and sample container bytes format parameters for later use
to compute the timestamps.
This is done when setting the compress stream parameters
(in sof_compr_set_params).
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-4-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This will keep SOF compress stream private data. So far
we used snd_compr_tstamp to hold the private data but this
is no longer enough as we need to hold other info like
number of channels or sample bytes.
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-3-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Byte offset is the offset in the ring buffer to the DSP
while posn_offset is an offset inside the stream_box where
we keep position information.
Reviewed-by: Paul Olaru <paul.olaru@oss.nxp.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20220817080529.10864-2-daniel.baluta@oss.nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Takashi Iwai <tiwai@suse.de>:
This is a patch series to paper over the theoretical buffer overflow
that might be caused by snprintf(). snprintf() is notorious for its
behavior and the usage of a safer version, scnprintf(), is
recommended.
When building with Clang we encounter these warnings:
| sound/soc/sof/ipc3-topology.c:2343:4: error: format specifies type
| 'unsigned char' but the argument has type 'int' [-Werror,-Wformat]
| SOF_ABI_MAJOR, SOF_ABI_MINOR, SOF_ABI_PATCH);
| ^~~~~~~~~~~~~~~^~~~~~~~~~~~~~~^~~~~~~~~~~~~
Use correct format specifier `%d` since args are of type int.
Link: https://github.com/ClangBuiltLinux/linux/issues/378
Reported-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220803204442.2996580-1-justinstitt@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
snprintf() returns the would-be-filled size when the string overflows
the given buffer size, hence using this value may result in the buffer
overflow (although it's unrealistic).
This patch replaces with a safer version, scnprintf() for papering
over such a potential issue.
Fixes: 29c8e4398f ("ASoC: SOF: Intel: hda: add extended rom status dump to error log")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220801165420.25978-4-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
snprintf() returns the would-be-filled size when the string overflows
the given buffer size, hence using this value may result in the buffer
overflow (although it's unrealistic).
This patch replaces with a safer version, scnprintf() for papering
over such a potential issue.
Fixes: 5b10b62989 ("ASoC: SOF: Add `memory_info` file to debugfs")
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://lore.kernel.org/r/20220801165420.25978-3-tiwai@suse.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Add cont_update_posn to platform parameters to support
continue update position for platform.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Signed-off-by: YC Hung <yc.hung@mediatek.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220725195343.145603-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We should have a limited trust in the BIOS and verify that the SSP
index reported in NHLT is valid for each platform.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220725195343.145603-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Merge series from Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>:
Set of updates for IPC3, IPC4, MTL support and cleanups for the
topology filename override which was broken for HDaudio platforms.
We should be consistent and always test that the DMA buffer is
allocated before continuing with the hw_params setup.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-12-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
assign/free are not well aligned to usual conventions and specifically
not to the compressed ops that make use of the probe callbacks.
Use the more common startup/shutdown. No functional change beyond
renaming.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-11-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
We do all kinds of renaming tricks that get in the way of kernel
parameter and DMI quirk overrides at a higher level.
Tested on UpExtreme board with
options snd-sof-pci tplg_filename=sof-hda-generic.tplg
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-10-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The fw_filename is now set at a higher level and can be overridden by
kernel parameters or DMI quirks.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-9-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
fixup_tplg_name() doesn't need to keep the string, allocated for
filename - it's temporary.
Inspired by similar change for hda:
commit b9088535e1 ("ASoC: SOF: Intel: HDA: don't keep a temporary variable")
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Print out the found extended manifest magic number in case it is not
matching with the expected one (0x6e614d58) in debug level.
It is fairly unlikely that the firmware does not have ext_man section and
the found value in place of the magic number can help rootcausing boot
related issues.
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-7-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Currently the domain bit in ipc msg for module initialization is
set to lp (low power) mode for pipeline. This is not correct since
it is for module domain type: ll domain or dp domain which are for
scheduler in fw. If the domain bit is set to 1 fw will process the
module in dp domain or deal it with ll domain. So set domain bit
based on dp domain setting.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-6-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
SRC module only needs two parameters : base module config
and sink rate. This patch adds prepare and setup for SRC
widgets.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Dsp converts pcm rate to the one defined by dai. When SRC
is used, the pcm runtime rate is different with dai rate
and we need to fix it up for BE components.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Rander Wang <rander.wang@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-4-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The existing code allocate/release instance_id in widget ipc_prepare/
ipc_unprepare callbacks and creating widget with the instance_id in
tplg widget_setup callback. In the case of multiple widgets connecting
to one widget, the ipc_unprepare will be invoked for all the widgets
in the path including the widget which is still in use.
As a result, the instance_id is released in the ipc_unprepare callback,
but the widget is still in use and the instance_id will be reused by
a new widget when we start the PCM again.
Moving the ida work from ipc_prepare/ipc_unprepare to widget_setup/free
can avoid such problem.
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Drop redundant CPA bit check after polling the same condition.
Fixes: 064520e8ae ("ASoC: SOF: Intel: Add support for MeteorLake (MTL)")
Reviewed-by: Chao Song <chao.song@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Péter Ujfalusi <peter.ujfalusi@linux.intel.com>
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220715145216.277003-2-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When PCH-attached DMICs are used on a SoundWire-based platform, all
known devices pin-mux SoundWire link2 and link3 with DMIC, and only
use link0 and link1 for SoundWire.
The HP Omen16 is the first exception to the rule, with SoundWire using
link0 and link3. Rather than using a fixed mask, let's count the
number of SoundWire links used.
BugLink: https://github.com/thesofproject/sof/issues/5966
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Link: https://lore.kernel.org/r/20220715144144.274770-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
There are two bugs that have to do with when we copy the payload:
size = simple_write_to_buffer(ipc4_msg->data_ptr,
priv->max_msg_size, ppos, buffer,
count);
The value of "*ppos" was supposed to be zero but it is
sizeof(ipc4_msg->header_u64) so it will copy the data into the middle of
the "ipc4_msg->data_ptr" buffer instead of to the start. The second
problem is "buffer" should be "buffer + sizeof(ipc4_msg->header_u64)".
This function is used for fuzz testing so the data is normally random
and this bug likely does not affect anyone very much.
In this context, it's simpler and more appropriate to use copy_from_user()
instead of simple_write_to_buffer() so I have re-written the function.
Fixes: 066c67624d ("ASoC: SOF: ipc-msg-injector: Add support for IPC4 messages")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/Ysg1tB2FKLnRMsel@kili
Signed-off-by: Mark Brown <broonie@kernel.org>
AngeloGioacchino Del Regno