SY8824E is an I2C-controlled adjustable voltage regulator made by
Silergy Corp. The only difference between SY8824C and SY8824E is the
vsel_min.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163505.361890af@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
SY8824C is an I2C attached single output regulator made by Silergy Corp,
which is used on several Synaptics berlin platforms to control the
power supply of the ARM cores.
Add a driver for it.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163418.1a32fc48@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
SY8824C is an I2C-controlled adjustable voltage regulator made by
Silergy Corp.
Add its device tree binding.
Signed-off-by: Jisheng Zhang <Jisheng.Zhang@synaptics.com>
Link: https://lore.kernel.org/r/20190827163341.61df63a7@xhacker.debian
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit 5302dd7dd0.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 134b23eec9.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 690ff7881b.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 8f8184d6bf.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Rework DAI format calculation in preparation for adding more formats
later. As a side-effect this enables all CBM/CBS x CFM/CFS combinations
for supported formats. (Note: the additional modes are not tested.)
Note: this changes FSEDGE to POSITIVE for I2S CBM_CFS mode as the TXSYN
interrupt is not used anyway.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Link: https://lore.kernel.org/r/f5949b0326fdcdca072f3ed03f77de9e207631cd.1566677788.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit 21871a99b3.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 709fb82973.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit b3173c2292.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This reverts commit 0ad0bdd8ba.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Allow SSC to be used on platforms described using audio-graph-card
in Device Tree.
Signed-off-by: Michał Mirosław <mirq-linux@rere.qmqm.pl>
Reviewed-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com>
Acked-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Link: https://lore.kernel.org/r/233d5461f4448df151755de7b69a0cd3ad310d5c.1566677788.git.mirq-linux@rere.qmqm.pl
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit 5adf578101.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Use force_suspend/resume to make sure clocks are disabled/enabled
accordingly during system suspend/resume.
Signed-off-by: Dong Aisheng <aisheng.dong@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/1566944026-18113-1-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This reverts commit 9c1c5e0bc5.
Based on a lot of email and in-person discussions, this patch series is
being reworked to address a number of issues that were pointed out that
needed to be taken care of before it should be merged. It will be
resubmitted with those changes hopefully soon.
Cc: Frank Rowand <frowand.list@gmail.com>
Cc: Saravana Kannan <saravanak@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Mt8183 tdm out support S16_LE/S24_LE/S32_LE formats. When output S32_LE,
we need set hd_align so that memif can output MSB 24bits. When output
S24_LE, we need reset hd_align so that memif can output LSB 24bits.
Signed-off-by: Jiaxin Yu <jiaxin.yu@mediatek.com>
Link: https://lore.kernel.org/r/1566622726-27113-1-git-send-email-jiaxin.yu@mediatek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
The calibration process at booting will reset registers and bypass cache
to make sure the calibration is done.
We add mutex protection to avoid unexpected settings while
the registration process and calibration are interleaved.
Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20190826090052.1875-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This patch fixes inverted Left-Right channel of headphone mixer
volume by wrong shift_left, shift_right values.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Reviewed-by: Daniel Drake <drake@endlessm.com>
Link: https://lore.kernel.org/r/20190826153900.25969-2-katsuhiro@katsuster.net
Signed-off-by: Mark Brown <broonie@kernel.org>
Often limits can be changed by admin. When discussing such things
it helps if you can provide "self-sustained" facts. Also
sometimes the admin thinks he changed a limit, but it did not
take effect for some reason or he changed the wrong thing.
V3: Only pr_warn when Faulty is 0.
V2: Add read_errors value to pr_warn.
Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Until revalidate_disk() has completed, the size of a new md array will
appear to be zero.
So we shouldn't report, through array_state, that the array is active
until that time.
udev rules check array_state to see if the array is ready. As soon as
it appear to be zero, fsck can be run. If it find the size to be
zero, it will fail.
So add a new flag to provide an interlock between do_md_run() and
array_state_show(). This flag is set while do_md_run() is active and
it prevents array_state_show() from reporting that the array is
active.
Before do_md_run() is called, ->pers will be NULL so array is
definitely not active.
After do_md_run() is called, revalidate_disk() will have run and the
array will be completely ready.
We also move various sysfs_notify*() calls out of md_run() into
do_md_run() after MD_NOT_READY is cleared. This ensure the
information is ready before the notification is sent.
Prior to v4.12, array_state_show() was called with the
mddev->reconfig_mutex held, which provided exclusion with do_md_run().
Note that MD_NOT_READY cleared twice. This is deliberate to cover
both success and error paths with minimal noise.
Fixes: b7b17c9b67 ("md: remove mddev_lock() from md_attr_show()")
Cc: stable@vger.kernel.org (v4.12++)
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Since commit 4ad23a9764 ("MD: use per-cpu counter for
writes_pending"), set_in_sync() is substantially more expensive: it
can wait for a full RCU grace period which can be 10s of milliseconds.
So we should only call it when the cost is justified.
md_check_recovery() currently calls set_in_sync() every time it finds
anything to do (on non-external active arrays). For an array
performing resync or recovery, this will be quite often.
Each call will introduce a delay to the md thread, which can noticeable
affect IO submission latency.
In md_check_recovery() we only need to call set_in_sync() if
'safemode' was non-zero at entry, meaning that there has been not
recent IO. So we save this "safemode was nonzero" state, and only
call set_in_sync() if it was non-zero.
This measurably reduces mean and maximum IO submission latency during
resync/recovery.
Reported-and-tested-by: Jack Wang <jinpu.wang@cloud.ionos.com>
Fixes: 4ad23a9764 ("MD: use per-cpu counter for writes_pending")
Cc: stable@vger.kernel.org (v4.12+)
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Don't advance RIP or inject a single-step #DB if emulation signals a
fault. This logic applies to all state updates that are conditional on
clean retirement of the emulation instruction, e.g. updating RFLAGS was
previously handled by commit 38827dbd3f ("KVM: x86: Do not update
EFLAGS on faulting emulation").
Not advancing RIP is likely a nop, i.e. ctxt->eip isn't updated with
ctxt->_eip until emulation "retires" anyways. Skipping #DB injection
fixes a bug reported by Andy Lutomirski where a #UD on SYSCALL due to
invalid state with EFLAGS.TF=1 would loop indefinitely due to emulation
overwriting the #UD with #DB and thus restarting the bad SYSCALL over
and over.
Cc: Nadav Amit <nadav.amit@gmail.com>
Cc: stable@vger.kernel.org
Reported-by: Andy Lutomirski <luto@kernel.org>
Fixes: 663f4c61b8 ("KVM: x86: handle singlestep during emulation")
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
If kvm_intel is loaded with nested=0 parameter an attempt to perform
KVM_GET_SUPPORTED_HV_CPUID results in OOPS as nested_get_evmcs_version hook
in kvm_x86_ops is NULL (we assign it in nested_vmx_hardware_setup() and
this only happens in case nested is enabled).
Check that kvm_x86_ops->nested_get_evmcs_version is not NULL before
calling it. With this, we can remove the stub from svm as it is no
longer needed.
Cc: <stable@vger.kernel.org>
Fixes: e2e871ab2f ("x86/kvm/hyper-v: Introduce nested_get_evmcs_version() helper")
Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Radim Krčmář <rkrcmar@redhat.com>
With global filtering, it becomes possible for users to construct
self-contradictory groups with conflicting filters. Make sure we
cover that when initially validating events.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Ensure that a group will actually fit into the available counters.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Currently topology is kept in memory while driver is running. It's
unnecessary, as it's only needed during parsing.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Link: https://lore.kernel.org/r/20190827141712.21015-6-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
When we are printing module params, we were actually printing module id
instead of type, but debug message was saying that number we get is type.
So print module type, as it is useful when debugging paths, but also
keep printing module id, as it is used in all other logs.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@intel.com>
Link: https://lore.kernel.org/r/20190827141712.21015-5-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
We use snd_soc_dapm_new_control_unlocked for topology and have local
declaration, instead declare it properly in header like already declared
snd_soc_dapm_new_control.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@intel.com>
Link: https://lore.kernel.org/r/20190827141712.21015-4-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
If ipc->ops.reply_msg_match is NULL, we may end up using uninitialized
mask value.
reported by smatch:
sound/soc/intel/common/sst-ipc.c:266 sst_ipc_reply_find_msg() error: uninitialized symbol 'mask'.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@intel.com>
Link: https://lore.kernel.org/r/20190827141712.21015-3-amadeuszx.slawinski@linux.intel.com
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
The device_link_add() function only returns NULL on error, it doesn't
return error pointers.
Fixes: 202acc565a ("ASoC: SOF: imx: Add i.MX8 HW support")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20190826131855.GA6840@mwanda
Signed-off-by: Mark Brown <broonie@kernel.org>
The last set of reworks included some fixes to change the A83t behaviour
and "fix" it.
It turns out that the controller described in the datasheet and the one
supported here are not the same, yet the A83t has the two of them, and the
one supported in the driver wasn't the one described in the datasheet.
Fix this by reintroducing the proper quirks.
Fixes: 69e450e50c ("ASoC: sun4i-i2s: Fix the LRCK period on A83t")
Fixes: bf943d5279 ("ASoC: sun4i-i2s: Fix MCLK Enable bit offset on A83t")
Fixes: 2e04fc4dbf ("ASoC: sun4i-i2s: Fix WSS and SR fields for the A83t")
Fixes: 515fcfbc77 ("ASoC: sun4i-i2s: Fix LRCK and BCLK polarity offsets on newer SoCs")
Fixes: c1d3a921d7 ("ASoC: sun4i-i2s: Fix the MCLK and BCLK dividers on newer SoCs")
Fixes: fb19739d7f ("ASoC: sun4i-i2s: Use module clock as BCLK parent on newer SoCs")
Fixes: 71137bcd0a ("ASoC: sun4i-i2s: Move the format configuration to a callback")
Fixes: d70be625f2 ("ASoC: sun4i-i2s: Move the channel configuration to a callback")
Reported-by: Chen-Yu Tsai <wens@csie.org>
Tested-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Link: https://lore.kernel.org/r/20190827123131.29129-2-mripard@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
In case of error, the function devm_ioremap_wc() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: 202acc565a ("ASoC: SOF: imx: Add i.MX8 HW support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Daniel Baluta <daniel.baluta@nxp.com>
Link: https://lore.kernel.org/r/20190826120003.183279-1-weiyongjun1@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Remove unused variable mt8183_mt6358_ts3a227_max98357_dapm_widgets and
mt8183_mt6358_ts3a227_max98357_dapm_routes. They are accidentially
included when rebasing commits.
Fixes: 6191cbde5f ("ASoC: mediatek: mt8183: switch tdm pins gpio function when playback on or off")
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20190826032642.27324-1-tzungbi@google.com
Signed-off-by: Mark Brown <broonie@kernel.org>
- Support for Edge Triggered IRQs in ARC IDU intc
- other fixes here and there
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Merge tag 'arc-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC updates from Vineet Gupta:
- support for Edge Triggered IRQs in ARC IDU intc
- other fixes here and there
* tag 'arc-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
arc: prefer __section from compiler_attributes.h
dt-bindings: IDU-intc: Add support for edge-triggered interrupts
dt-bindings: IDU-intc: Clean up documentation
ARCv2: IDU-intc: Add support for edge-triggered interrupts
ARC: unwind: Mark expected switch fall-throughs
ARC: [plat-hsdk]: allow to switch between AXI DMAC port configurations
ARC: fix typo in setup_dma_ops log message
ARCv2: entry: early return from exception need not clear U & DE bits
A collection of small fixes as usual:
- More coverage of USB-audio descriptor sanity checks
- A fix for mute LED regression on Conexant HD-audio codecs
- A few device-specific fixes and quirks for USB-audio and HD-audio
- A fix for (die-hard remaining) possible race in sequencer core
- FireWire oxfw regression fix that was introduced in 5.3-rc1
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Merge tag 'sound-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"A collection of small fixes as usual:
- More coverage of USB-audio descriptor sanity checks
- A fix for mute LED regression on Conexant HD-audio codecs
- A few device-specific fixes and quirks for USB-audio and HD-audio
- A fix for (die-hard remaining) possible race in sequencer core
- FireWire oxfw regression fix that was introduced in 5.3-rc1"
* tag 'sound-5.3-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: oxfw: fix to handle correct stream for PCM playback
ALSA: seq: Fix potential concurrent access to the deleted pool
ALSA: usb-audio: Check mixer unit bitmap yet more strictly
ALSA: line6: Fix memory leak at line6_init_pcm() error path
ALSA: usb-audio: Fix invalid NULL check in snd_emuusb_set_samplerate()
ALSA: hda/ca0132 - Add new SBZ quirk
ALSA: usb-audio: Add implicit fb quirk for Behringer UFX1604
ALSA: hda - Fixes inverted Conexant GPIO mic mute led
As noted in Documentation/atomic_t.txt, if we don't need the RMW atomic
operations, we should only use READ_ONCE()/WRITE_ONCE() +
smp_rmb()/smp_wmb() where necessary (or the combined variants
smp_load_acquire()/smp_store_release()).
This patch converts the sidtab code to use regular u32 for the counter
and reverse lookup cache and use the appropriate operations instead of
atomic_get()/atomic_set(). Note that when reading/updating the reverse
lookup cache we don't need memory barriers as it doesn't need to be
consistent or accurate. We can now also replace some atomic ops with
regular loads (when under spinlock) and stores (for conversion target
fields that are always accessed under the master table's spinlock).
We can now also bump SIDTAB_MAX to U32_MAX as we can use the full u32
range again.
Suggested-by: Jann Horn <jannh@google.com>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Jann Horn <jannh@google.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>
For picasso(adev->pdev->device == 0x15d8)&raven2(adev->rev_id >= 0x8),
firmware is sufficient to support gfxoff.
In commit 98f58ada2d, for picasso&raven2,
return directly and cause gfxoff disabled.
Fixes: 98f58ada2d ("drm/amdgpu/gfx9: update pg_flags after determining if gfx off is possible")
Reviewed-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Needs ATPX rather than _PR3 to really turn off the dGPU. This can save
~5W when dGPU is runtime-suspended.
Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The Allwinner SoCs have an interrupt controller called NMI supported in
Linux, with a matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
Correct the settings for auto mode and skip the unnecessary
settings for dcefclk and fclk.
Signed-off-by: Evan Quan <evan.quan@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
The Allwinner SoCs have an interrupt controller supported in Linux, with a
matching Device Tree binding.
Now that we have the DT validation in place, let's convert the device tree
bindings for that controller over to a YAML schemas.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Signed-off-by: Rob Herring <robh@kernel.org>
On AArch64 the TCR_EL1.TBI0 bit is set by default, allowing userspace
(EL0) to perform memory accesses through 64-bit pointers with a non-zero
top byte. However, such pointers were not allowed at the user-kernel
syscall ABI boundary.
With the Tagged Address ABI patchset, it is now possible to pass tagged
pointers to the syscalls. Relax the requirements described in
tagged-pointers.rst to be compliant with the behaviours guaranteed by
the AArch64 Tagged Address ABI.
Cc: Will Deacon <will.deacon@arm.com>
Cc: Szabolcs Nagy <szabolcs.nagy@arm.com>
Cc: Kevin Brodsky <kevin.brodsky@arm.com>
Acked-by: Andrey Konovalov <andreyknvl@google.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Co-developed-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will@kernel.org>
Since commit 2f6ea23f63 ("arm64: KVM: Avoid marking pages as XN in
Stage-2 if CTR_EL0.DIC is set"), KVM has stopped marking normal memory
as execute-never at stage2 when the system supports D->I Coherency at
the PoU. This avoids KVM taking a trap when the page is first executed,
in order to clean it to PoU.
The patch that added this change also wrapped PAGE_S2_DEVICE mappings
up in this too. The upshot is, if your CPU caches support DIC ...
you can execute devices.
Revert the PAGE_S2_DEVICE change so PTE_S2_XN is always used
directly.
Fixes: 2f6ea23f63 ("arm64: KVM: Avoid marking pages as XN in Stage-2 if CTR_EL0.DIC is set")
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
