LPASS VA Macro now has soundwire master to deal with access to
analog mic in low power island use cases.
This is added after sc8280xp, add support for this.
Along with this also add compatibles for sm8450 and sc8280xp.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-13-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch adds SM8450 and SC8280XP compatible entry for LPASS TX, RX, WSA
and VA codec macros.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220906170112.1984-8-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
WSA883x does support clock stop, so remove code that reset
the Codec during runtime pm suspend and add flag to mark
clock stop support.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-7-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
tx_macro_tx_mixer_put() and tx_macro_dec_mode_put() currently returns zero
eventhough it changes the value.
Fix this, so that change notifications are sent correctly.
Fixes: d207bdea0c ("ASoC: codecs: lpass-tx-macro: add dapm widgets and route")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-6-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
currently active_decimator[] is unsigned long however we store negative
values when there is no decimator setup -1.
This is first bug, and the second bug is that we do not check if the decimator
is valid before writing to register using decimator as offset in
CDC_TXn_TX_PATH_CTL()
Fix these both by making active_decimator as integer array and adding check
in tx_macro_digital_mute() before accessing CDC_TXn_TX_PATH_CTL() register.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-5-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Reset soundwire block on frame sync generation clock reset.
Without this we are hitting read/write timeouts randomly during
runtime pm. Along with this remove a swr_reset redundant flag.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-4-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Reset soundwire block on frame sync generation clock reset.
Without this we are hitting read/write timeouts randomly during
runtime pm. Along with this remove a swr_reset redundant flag.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-3-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Reset soundwire block on frame sync generation clock reset.
Without this we are hitting read/write timeouts randomly during
runtime pm.
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220906170112.1984-2-srinivas.kandagatla@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The livepatch kselftests rely on comparing expected and actual output
from such commands as sysctl. A recent commit in procps-ng v4.0.0 [1]
changed sysctl's output to emit key pathnames like:
sysctl: setting key "/proc/sys/kernel/ftrace_enabled": Device or resource busy
versus previous dotted output:
sysctl: setting key "kernel.ftrace_enabled": Device or resource busy
The modification in output was later reverted [2], but since the change
has been tagged in procps-ng v4.0.0, update the livepatch kselftest to
handle either case.
[1] 6389deca5b
[2] b159c198c9
Reported-by: Dennis(Zhuoheng) Li <denli@redhat.com>
Signed-off-by: Joe Lawrence <joe.lawrence@redhat.com>
Reviewed-by: Kamalesh Babulal <kamalesh.babulal@oracle.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
Link: https://lore.kernel.org/r/20220811212138.182575-1-joe.lawrence@redhat.com
devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Link: https://lore.kernel.org/r/20220923101632.19170-1-shangxiaojing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This switches the driver to use gpiod API instead of legacy gpio API,
which will brings us close to removing of_get_gpio() and other
OF-specific old APIs.
No functional change intended beyond some differences in error messages.
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/Yy07WbMAG4bPgYNd@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
devm_ioremap_resource() prints error message in itself. Remove the
dev_err call to avoid redundant error message.
Signed-off-by: Shang XiaoJing <shangxiaojing@huawei.com>
Link: https://lore.kernel.org/r/20220923101726.19420-1-shangxiaojing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
After commit 3989ade2d1 ("ASoC: soc.h: remove num_cpus/codecs"), the
following build error occurs:
sound/soc/intel/boards/sof_da7219_max98373.c:198:27: error: no member named 'num_codecs' in 'struct snd_soc_pcm_runtime'
for (j = 0; j < runtime->num_codecs; j++) {
~~~~~~~ ^
1 error generated.
This conversion was missed by the aforementioned change. Do it now to
fix the build error.
Fixes: 3989ade2d1 ("ASoC: soc.h: remove num_cpus/codecs")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922153752.336193-1-nathan@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
The imx_pcm_dma_params_init_data() are no longer used since
commit c31da0b196 ("ASoC: imx-ssi: Remove unused driver"),
and the function is used to initialize some members of
"struct imx_dma_data", it's more readable to assign the value
directly, imx_pcm_dma_params_init_data is useless, so remove it.
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Link: https://lore.kernel.org/r/20220923090355.507648-1-cuigaosheng1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The return val of snd_sof_dsp_read() right before polling the same
register is not used, so remove the redundant call.
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-11-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Now that the disabling of interrupts and powering down the DSP has been
abstracted, re-use the common ops for PM for MTL as well.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-10-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use the IP-specific ops for disabling interrupts and powering down the
DSP in hda_suspend.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-9-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Disable the IPC and SDW interrupts in the disable_interrupts op.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-8-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Disable the IPC and SDW nterrupts in the disable_interrupts op for
cavs platforms.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-7-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The sequence for disabling DSP interrupts varies between different IP
versions.
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-6-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Use power_down_dsp op to differentiate power down sequences in platforms.
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-5-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
For MTL platform, dsp cores need to go power down first then dsp subsystem
also need to set power down.
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-4-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
hda_power_down_dsp is set for power_down_dsp op for all HDA platforms.
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-3-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
DSP core power down sequences are different between cavs platforms and MTL.
Signed-off-by: Fred Oh <fred.oh@linux.intel.com>
Reviewed-by: Rander Wang <rander.wang@intel.com>
Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
Link: https://lore.kernel.org/r/20220922213644.666315-2-ranjani.sridharan@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt5682 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the mt8186-rt5682 driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.
Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-7-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add DAPM widgets for headphones and headset microphone, with matching
switches, to allow toggling these paths based on the jack connection
status.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-6-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The da7219 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the mt8186-da7219 driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.
Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-5-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Add DAPM widgets for headphones and headset microphone, with matching
switches, to allow toggling these paths based on the jack connection
status.
Note that differently from others (mt8192, mt8195 and mt8186-rt5682),
the widget here is named "Headphones" (with an 's'), since "Headphone
Switch" was already registered by da7219.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-4-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt5682 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the mt8195 ASoC driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.
Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-3-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The rt5682 codec is able to distinguish between two event types:
headphone insertion/removal and headset microphone insertion/removal.
However, currently, the mt8192-mt6359 driver exposes a single kcontrol
for the headset jack, so userspace isn't able to differentiate between
the two events.
Add a definition for the headset jack pins, so that a separate jack
kcontrol is created for each one, allowing userspace to track and handle
them individually.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tested-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220922235951.252532-2-nfraprado@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Slimbus streams are first prepared and then enabled, so the cleanup path
should reverse it. The unprepare sets stream->num_ports to 0 and frees
the stream->ports. Calling disable after unprepare was not really
effective (channels was not deactivated) and could lead to further
issues due to making transfers on unprepared stream.
Fixes: a61f3b4f47 ("ASoC: wcd934x: add support to wcd9340/wcd9341 codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220921145354.1683791-2-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Slimbus streams are first prepared and then enabled, so the cleanup path
should reverse it. The unprepare sets stream->num_ports to 0 and frees
the stream->ports. Calling disable after unprepare was not really
effective (channels was not deactivated) and could lead to further
issues due to making transfers on unprepared stream.
Fixes: 20aedafdf4 ("ASoC: wcd9335: add support to wcd9335 codec")
Cc: <stable@vger.kernel.org>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220921145354.1683791-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Ensure that the SMBIOS entry point is long enough to include all the
fields we need. Otherwise it is pointless to even attempt to verify
its checksum.
Also fix the maximum length check, which is technically 32, not 31.
It does not matter in practice as the only valid values are 31 (for
SMBIOS 2.x) and 24 (for SMBIOS 3.x), but let's still have the check
right in case new fields are added to either structure in the future.
Signed-off-by: Jean Delvare <jdelvare@suse.de>
Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Link: https://lore.kernel.org/lkml/20220823094857.27f3d924@endymion.delvare/T/
Commit bbb774d921 ("net: Add tests for bonding and team address list
management") adds the net team driver tests in the directory:
tools/testing/selftests/drivers/net/team/
The file entry in MAINTAINERS for the TEAM DRIVER however refers to:
tools/testing/selftests/net/team/
Hence, ./scripts/get_maintainer.pl --self-test=patterns complains about a
broken file pattern.
Repair this file entry in TEAM DRIVER.
Signed-off-by: Lukas Bulwahn <lukas.bulwahn@gmail.com>
Acked-by: Benjamin Poirier <bpoirier@nvidia.com>
Link: https://lore.kernel.org/r/20220922114053.10883-1-lukas.bulwahn@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Due to undocumented, hysterical raisins on x86, the CFI jump-table
sections in .text are needlessly aligned to PMD_SIZE in the vmlinux
linker script. When compiling a CFI-enabled arm64 kernel with a 64KiB
page-size, a PMD maps 512MiB of virtual memory and so the .text section
increases to a whopping 940MiB and blows the final Image up to 960MiB.
Others report a link failure.
Since the CFI jump-table requires only instruction alignment, reduce the
alignment directives to function alignment for parity with other parts
of the .text section. This reduces the size of the .text section for the
aforementioned 64KiB page size arm64 kernel to 19MiB for a much more
reasonable total Image size of 39MiB.
Cc: Sami Tolvanen <samitolvanen@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: "Mohan Rao .vanimina" <mailtoc.mohanrao@gmail.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/all/CAL_GTzigiNOMYkOPX1KDnagPhJtFNqSK=1USNbS0wUL4PW6-Uw@mail.gmail.com/
Fixes: cf68fffb66 ("add support for Clang CFI")
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Tested-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220922215715.13345-1-will@kernel.org
Signed-off-by: Will Deacon <will@kernel.org>
A fix to remove usb4 from am5748 as it does not exist on the SoC, and
a fix for am335x mmc dma that wired direct and should not use the xbar.
Note that the am5748 fix depends on the recent deferred probe regression
fixes to boot. I ended up picking the merge commit to base it on as it
describes what got fixed quite nicely rather than a -rc tag.
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Merge tag 'omap-for-6.0/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/fixes
Two fixes for omaps
A fix to remove usb4 from am5748 as it does not exist on the SoC, and
a fix for am335x mmc dma that wired direct and should not use the xbar.
Note that the am5748 fix depends on the recent deferred probe regression
fixes to boot. I ended up picking the merge commit to base it on as it
describes what got fixed quite nicely rather than a -rc tag.
* tag 'omap-for-6.0/fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: dts: am5748: keep usb4_tm disabled
ARM: dts: am33xx: Fix MMCHS0 dma properties
Link: https://lore.kernel.org/r/pull-1663140667-273537@atomide.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
resctrl_arch_rmid_read() returns a value in chunks, as read from the
hardware. This needs scaling to bytes by mon_scale, as provided by
the architecture code.
Now that resctrl_arch_rmid_read() performs the overflow and corrections
itself, it may as well return a value in bytes directly. This allows
the accesses to the architecture specific 'hw' structure to be removed.
Move the mon_scale conversion into resctrl_arch_rmid_read().
mbm_bw_count() is updated to calculate bandwidth from bytes.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-22-james.morse@arm.com
resctrl_rmid_realloc_threshold can be set by user-space. The maximum
value is specified by the architecture.
Currently max_threshold_occ_write() reads the maximum value from
boot_cpu_data.x86_cache_size, which is not portable to another
architecture.
Add resctrl_rmid_realloc_limit to describe the maximum size in bytes
that user-space can set the threshold to.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-21-james.morse@arm.com
resctrl_cqm_threshold is stored in a hardware specific chunk size,
but exposed to user-space as bytes.
This means the filesystem parts of resctrl need to know how the hardware
counts, to convert the user provided byte value to chunks. The interface
between the architecture's resctrl code and the filesystem ought to
treat everything as bytes.
Change the unit of resctrl_cqm_threshold to bytes. resctrl_arch_rmid_read()
still returns its value in chunks, so this needs converting to bytes.
As all the users have been touched, rename the variable to
resctrl_rmid_realloc_threshold, which describes what the value is for.
Neither r->num_rmid nor hw_res->mon_scale are guaranteed to be a power
of 2, so the existing code introduces a rounding error from resctrl's
theoretical fraction of the cache usage. This behaviour is kept as it
ensures the user visible value matches the value read from hardware
when the rmid will be reallocated.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-20-james.morse@arm.com
resctrl_arch_rmid_read() is intended as the function that an
architecture agnostic resctrl filesystem driver can use to
read a value in bytes from a counter. Currently the function returns
the MBM values in chunks directly from hardware. When reading a bandwidth
counter, get_corrected_mbm_count() must be used to correct the
value read.
get_corrected_mbm_count() is architecture specific, this work should be
done in resctrl_arch_rmid_read().
Move the function calls. This allows the resctrl filesystems's chunks
value to be removed in favour of the architecture private version.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-19-james.morse@arm.com
resctrl_arch_rmid_read() is intended as the function that an
architecture agnostic resctrl filesystem driver can use to
read a value in bytes from a counter. Currently the function returns
the MBM values in chunks directly from hardware. When reading a bandwidth
counter, mbm_overflow_count() must be used to correct for any possible
overflow.
mbm_overflow_count() is architecture specific, its behaviour should
be part of resctrl_arch_rmid_read().
Move the mbm_overflow_count() calls into resctrl_arch_rmid_read().
This allows the resctrl filesystems's prev_msr to be removed in
favour of the architecture private version.
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Jamie Iles <quic_jiles@quicinc.com>
Reviewed-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Reviewed-by: Reinette Chatre <reinette.chatre@intel.com>
Tested-by: Xin Hao <xhao@linux.alibaba.com>
Tested-by: Shaopeng Tan <tan.shaopeng@fujitsu.com>
Tested-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20220902154829.30399-18-james.morse@arm.com
