It isn't possible to execute anonymous inodes because they cannot be
opened in any way after they have been created. This includes execution:
execveat(fd_anon_inode, "", NULL, NULL, AT_EMPTY_PATH)
Anonymous inodes have inode->f_op set to no_open_fops which sets
no_open() which returns ENXIO. That means any call to do_dentry_open()
which is the endpoint of the do_open_execat() will fail. There's no
chance to execute an anonymous inode. Unless a given subsystem overrides
it ofc.
However, we should still harden this and raise SB_I_NODEV and
SB_I_NOEXEC on the superblock itself so that no one gets any creative
ideas.
Link: https://lore.kernel.org/20250407-work-anon_inode-v1-5-53a44c20d44e@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Cc: stable@vger.kernel.org # all LTS kernels
Signed-off-by: Christian Brauner <brauner@kernel.org>
So far pidfs did use it's own version. Just use the generic version.
We use our own wrappers because we're going to be implementing
properties soon.
Link: https://lore.kernel.org/20250407-work-anon_inode-v1-4-53a44c20d44e@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
It is currently possible to change the mode and owner of the single
anonymous inode in the kernel:
int main(int argc, char *argv[])
{
int ret, sfd;
sigset_t mask;
struct signalfd_siginfo fdsi;
sigemptyset(&mask);
sigaddset(&mask, SIGINT);
sigaddset(&mask, SIGQUIT);
ret = sigprocmask(SIG_BLOCK, &mask, NULL);
if (ret < 0)
_exit(1);
sfd = signalfd(-1, &mask, 0);
if (sfd < 0)
_exit(2);
ret = fchown(sfd, 5555, 5555);
if (ret < 0)
_exit(3);
ret = fchmod(sfd, 0777);
if (ret < 0)
_exit(3);
_exit(4);
}
This is a bug. It's not really a meaningful one because anonymous inodes
don't really figure into path lookup and they cannot be reopened via
/proc/<pid>/fd/<nr> and can't be used for lookup itself. So they can
only ever serve as direct references.
But it is still completely bogus to allow the mode and ownership or any
of the properties of the anonymous inode to be changed. Block this!
Link: https://lore.kernel.org/20250407-work-anon_inode-v1-3-53a44c20d44e@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Cc: stable@vger.kernel.org # all LTS kernels
Signed-off-by: Christian Brauner <brauner@kernel.org>
So far pidfs did use it's own version. Just use the generic version. We
use our own wrappers because we're going to be implementing our own
retrieval properties soon.
Link: https://lore.kernel.org/20250407-work-anon_inode-v1-2-53a44c20d44e@kernel.org
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Christian Brauner <brauner@kernel.org>
When assigning new widget name there needs to be enough place in buffer
to assign name.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-9-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When handling TDMs, don't iterate over number of SSP ports, but over
possible number of TDMs.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-8-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
When creating machine boards there are two types, per endpoint or
compound board. For compound board we can just use I2S mask as its ID,
however, per endpoint can also be separated per TDM, which causes
problem because two boards would have same I2S mask. Shift it and add
the value of TDM to generate a unique ID.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-7-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Change 'i2s_test' module option from enable-flag to string allowing to
specify which SSP port and in what TDM configuration should be enabled.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-6-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add define representing maximum number of channels that are allowed by
HDAudio standard and as such supported by HW - 16 channels. With that
done, reflect the max in BE DAIs capabilities.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-5-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
It is used for coefficient table in updown mixer module, which supports
maximum of 8 channels. However it does not represent HW capability.
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-4-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
As per HDAudio specification, up to 16 channels are supported. Reflect
that in the code.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-3-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Existing parse_inte_array_user() works with __user buffers only.
Separate array parsing from __user bits so the functionality can be
utilized with kernel buffers too.
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20250404090337.3564117-2-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_ssm4567" to "AVS I2S SSM4567".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-21-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt5682" to "AVS I2S ALC5682".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-20-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt5663" to "AVS I2S ALC5663".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-19-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt5514" to "AVS I2S ALC5514".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-18-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt298" to "AVS I2S ALC298".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-17-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt286" to "AVS I2S ALC286".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-16-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_rt274" to "AVS I2S ALC274".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-15-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_probe_mb" to "AVS PROBE".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-14-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_pcm3168a" to "AVS I2S PCM3168A".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-13-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_nau8825" to "AVS I2S NAU8825".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-12-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_max98927" to "AVS I2S MAX98927".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-11-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_max98373" to "AVS I2S MAX98373".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-10-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_max98357a" to "AVS I2S MAX98357A".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-9-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "sspX-loopback" to "AVS I2S TEST-X".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-8-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "hdaudioB0D0"/"hdaudioB0D2" to "AVS HD-Audio"/"AVS HDMI".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-7-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_es8336" to "AVS I2S ES8336".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-6-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_dmic" to "AVS DMIC".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-5-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Rename FE from "avs_da7219" to "AVS I2S DA7219".
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-4-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Use DAI PCM ID from topology as Front End device endpoint number. This
allows devices to be more naturally enumerated starting from 0, like
most cards, instead of values like 1 or 2.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Acked-by: Jaroslav Kysela <perex@perex.cz>
Link: https://patch.msgid.link/20250407124154.1713039-3-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
The min_limit perf and freq values can get disconnected with performance
governor, as we only modify the perf value in the special case. Fix that
by modifying the perf and freq values together
Fixes: 009d1c29a4 ("cpufreq/amd-pstate: Move perf values into a union")
Signed-off-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://lore.kernel.org/r/20250407081925.850473-1-dhananjay.ugwekar@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
This isn't fixing a real issue, but there's also zero point in going
through group and buffer setup, when the buffers are going to be
rejected once attempted to get used.
Cc: stable@vger.kernel.org
Reported-by: syzbot+58928048fd1416f1457c@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
When XE_BO_FLAG_PINNED_NORESTORE and XE_BO_FLAG_PINNED_LATE_RESTORE were
added, they were assigned BO flag values in the middle of the flag
range, requiring renumbering of the higher flags. In both cases,
XE_BO_FLAG_CPU_ADDR_MIRROR was overlooked during renumbering because it
was defined below XE_BO_FLAG_GGTT_ALL and thus was not immediately
visible in code diffs changing this area of the code; this resulted in
XE_BO_FLAG_CPU_ADDR_MIRROR clashing with another flag.
Assign XE_BO_FLAG_CPU_ADDR_MIRROR a unique value, and also move the
definition of XE_BO_FLAG_GGTT_ALL down below all of the individual flags
so that this kind of mistake is less likely in the future. Also, while
we're at it, fix up some space vs tab whitespace inconsistency in these
flag definitions.
Fixes: 7f387e6012 ("drm/xe: add XE_BO_FLAG_PINNED_LATE_RESTORE")
Fixes: 045448da87 ("drm/xe: Add XE_BO_FLAG_PINNED_NORESTORE")
Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://lore.kernel.org/r/20250404220053.1758356-2-matthew.d.roper@intel.com
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
The avs-driver is the recommended solution for FriscoLake (FCL)
platform.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-11-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting from LunarLake (LNL) platform, non-HDAudio transfers e.g.:
I2S/DMIC utilize HDAudio LINK DMA instead of GPDMA for the data
transfer. Implement avs_append_dma_cfg() to account for the changes made
in LNL timeframe.
The handler checks the platform and transfer type before appending the
DMA configuration to the module's payload so it can safely be called
within the common initialization flow for Copier/WHM modules.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-9-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Provide dynamic selection mechanism of DAI operations for the
non-HDAudio DAIs so that both LunarLake+ platforms and their
predecessors are supported.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-8-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting from LNL platform the so-called non-HDAudio transfer types,
e.g.: I2S/DMIC, utilize HDAudio LINK DMA rather than GPDMA for the data
streaming. In essence, all transfer types now utilize HDAudio Link. Most
of the existing code can be reused with the major difference being
HDAudio Link query method:
- fetch the Link by codec.addr in standard HDAudio transfer case
- fetch the Link by LEPTR.ID in non-HDAudio transfer case
To make the unification happen, store pointer to the Link in dma_data
and utilize it in the common code. And to avoid confusion in
transfer-type naming between cAVS-ACE 1.x (SkyLake till MeteorLake) and
ACE 2.0+ architecture (LunarLake onward), use:
- 'hda' for typical HDAudio transfer case
- 'nonhda' for non-HDAudio transfer case, cAVS-ACE 1.x
- 'althda' for non-HDAudio transfer case, ACE 2.0+
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-7-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Define handlers specific to ACE platforms, that Frisco Lake (FCL), a
PantherLake (PTL)-based platform, is founded upon. Most operations are
still inherited from their predecessors with the major difference being
AudioDSP cores management - replaced by DSP-domain power management.
Software has to ensure the DSP domain is both powered on and its
power-gating disabled before it can be utilized for streaming.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-6-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The firmware status and error registers are not part of SRAM on ACE
platforms. As these registers take part in IPC on ACE and cAVS platforms
both, relocate the field denoting their offset to Host-IPC descriptor.
In consequence, code remains cohesive with the ACE specs while still
maintaining high readability for the cAVS platforms.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-5-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting with LunarLake (LNL) and onward, some hardware capabilities are
visible to the sound driver directly. At the same time, these may no
longer be visible to the AudioDSP firmware. Update resource allocation
function to rely on the registers when possible.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-4-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
A number of Vendor Specific registers utilized on cAVS architecture
(SkyLake till RaptorLake) are not present on ACE hardware (MeteorLake
onward). Similarly, certain recommended procedures do not apply. Adjust
existing code to be ACE-friendly.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-3-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Starting with LNL platform, Intel HDAudio Links carry IDs specifying
non-HDAudio transfer type they help facilitate e.g.: 0xC0 for I2S as
defined by AZX_REG_ML_LEPTR_ID_INTEL_SSP.
The mechanism accounts for LEPTR register as it is Reserved if
LCAP.ALT for given Link equals 0.
Reviewed-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Acked-by: Liam Girdwood <liam.r.girdwood@linux.intel.com>
Link: https://patch.msgid.link/20250407112352.3720779-2-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Refill queue lock and other bits are only used from the allocation path
on the rx softirq side, but it shares the cache line with other fields
like ctx that are used also in the "syscall" path, which causes cache
bouncing when softirq runs on a different CPU.
Separate them into different cache lines. The first one now contains
constant fields used by both contextx, followed by a line responsible
for refill queue data.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/6d1f598e27d623c07fc49d6baee13089a9b1216c.1743848241.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
