1056834 Commits

Author SHA1 Message Date
Like Xu
14ddbb83c3 KVM: x86/pmu: Do not speculatively query Intel GP PMCs that don't exist yet
[ Upstream commit 8631ef59b62290c7d88e7209e35dfb47f33f4902 ]

The SDM lists an architectural MSR IA32_CORE_CAPABILITIES (0xCF)
that limits the theoretical maximum value of the Intel GP PMC MSRs
allocated at 0xC1 to 14; likewise the Intel April 2022 SDM adds
IA32_OVERCLOCKING_STATUS at 0x195 which limits the number of event
selection MSRs to 15 (0x186-0x194).

Limiting the maximum number of counters to 14 or 18 based on the currently
allocated MSRs is clearly fragile, and it seems likely that Intel will
even place PMCs 8-15 at a completely different range of MSR indices.
So stop at the maximum number of GP PMCs supported today on Intel
processors.

There are some machines, like Intel P4 with non Architectural PMU, that
may indeed have 18 counters, but those counters are in a completely
different MSR address range and are not supported by KVM.

Cc: Vitaly Kuznetsov <vkuznets@redhat.com>
Cc: stable@vger.kernel.org
Fixes: cf05a67b68b8 ("KVM: x86: omit "impossible" pmu MSRs from MSR list")
Suggested-by: Jim Mattson <jmattson@google.com>
Signed-off-by: Like Xu <likexu@tencent.com>
Reviewed-by: Jim Mattson <jmattson@google.com>
Message-Id: <20220919091008.60695-1-likexu@tencent.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:33 +01:00
Mika Westerberg
a9b964ed7c spi: intel: Use correct mask for flash and protected regions
[ Upstream commit 92a66cbf6b30eda5719fbdfb24cd15fb341bba32 ]

The flash and protected region mask is actually 0x7fff (30:16 and 14:0)
and not 0x3fff so fix this accordingly. While there use GENMASK() instead.

Cc: stable@vger.kernel.org
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20221025062800.22357-1-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Mika Westerberg
f4eb68642e mtd: spi-nor: intel-spi: Disable write protection only if asked
[ Upstream commit cd149eff8d2201a63c074a6d9d03e52926aa535d ]

Currently the driver tries to disable the BIOS write protection
automatically even if this is not what the user wants. For this reason
modify the driver so that by default it does not touch the write
protection. Only if specifically asked by the user (setting writeable=1
command line parameter) the driver tries to disable the BIOS write
protection.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mauro Lima <mauro.lima@eclypsium.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20220209122706.42439-2-mika.westerberg@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Stable-dep-of: 92a66cbf6b30 ("spi: intel: Use correct mask for flash and protected regions")
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Colin Ian King
156d0c823c ASoC: codecs: jz4725b: Fix spelling mistake "Sourc" -> "Source", "Routee" -> "Route"
[ Upstream commit df496157a5afa1b6d1f4c46ad6549c2c346d1e59 ]

There are two spelling mistakes in codec routing description. Fix it.

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Acked-by: Paul Cercueil <paul@crapouillou.net>
Link: https://lore.kernel.org/r/20221019071639.1003730-1-colin.i.king@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Tony Luck
5907ff9f2c x86/cpu: Add several Intel server CPU model numbers
[ Upstream commit 7beade0dd41d42d797ccb7791b134a77fcebf35b ]

These servers are all on the public versions of the roadmap. The model
numbers for Grand Ridge, Granite Rapids, and Sierra Forest were included
in the September 2022 edition of the Instruction Set Extensions document.

Signed-off-by: Tony Luck <tony.luck@intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20221103203310.5058-1-tony.luck@intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Luiz Augusto von Dentz
41e37d04e3 Bluetooth: L2CAP: Fix l2cap_global_chan_by_psm
[ Upstream commit f937b758a188d6fd328a81367087eddbb2fce50f ]

l2cap_global_chan_by_psm shall not return fixed channels as they are not
meant to be connected by (S)PSM.

Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Reviewed-by: Tedd Ho-Jeong An <tedd.an@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Filipe Manana
b02a025dd1 btrfs: remove pointless and double ulist frees in error paths of qgroup tests
[ Upstream commit d0ea17aec12ea0f7b9d2ed727d8ef8169d1e7699 ]

Several places in the qgroup self tests follow the pattern of freeing the
ulist pointer they passed to btrfs_find_all_roots() if the call to that
function returned an error. That is pointless because that function always
frees the ulist in case it returns an error.

Also In some places like at test_multiple_refs(), after a call to
btrfs_qgroup_account_extent() we also leave "old_roots" and "new_roots"
pointing to ulists that were freed, because btrfs_qgroup_account_extent()
has freed those ulists, and if after that the next call to
btrfs_find_all_roots() fails, we call ulist_free() on the "old_roots"
ulist again, resulting in a double free.

So remove those calls to reduce the code size and avoid double ulist
free in case of an error.

Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Nathan Huckleberry
1c366c206f drm/imx: imx-tve: Fix return type of imx_tve_connector_mode_valid
[ Upstream commit fc007fb815ab5395c3962c09b79a1630b0fbed9c ]

The mode_valid field in drm_connector_helper_funcs is expected to be of
type:
enum drm_mode_status (* mode_valid) (struct drm_connector *connector,
                                     struct drm_display_mode *mode);

The mismatched return type breaks forward edge kCFI since the underlying
function definition does not match the function hook definition.

The return type of imx_tve_connector_mode_valid should be changed from
int to enum drm_mode_status.

Reported-by: Dan Carpenter <error27@gmail.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1703
Cc: llvm@lists.linux.dev
Signed-off-by: Nathan Huckleberry <nhuck@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220913205544.155106-1-nhuck@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:32 +01:00
Nam Cao
1c8ded1b38 i2c: i801: add lis3lv02d's I2C address for Vostro 5568
[ Upstream commit d6643d7207c572c1b0305ed505101f15502c6c87 ]

Dell Vostro 5568 laptop has lis3lv02d, but its i2c address is not known
to the kernel. Add this address.

Output of "cat /sys/devices/platform/lis3lv02d/position" on Dell Vostro
5568 laptop:
    - Horizontal: (-18,0,1044)
    - Front elevated: (522,-18,1080)
    - Left elevated: (-18,-360,1080)
    - Upside down: (36,108,-1134)

Signed-off-by: Nam Cao <namcaov@gmail.com>
Reviewed-by: Jean Delvare <jdelvare@suse.de>
Reviewed-by: Pali Rohár <pali@kernel.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Thierry Reding
b432581f19 i2c: tegra: Allocate DMA memory for DMA engine
[ Upstream commit cdbf26251d3b35c4ccaea0c3a6de4318f727d3d2 ]

When the I2C controllers are running in DMA mode, it is the DMA engine
that performs the memory accesses rather than the I2C controller. Pass
the DMA engine's struct device pointer to the DMA API to make sure the
correct DMA operations are used.

This fixes an issue where the DMA engine's SMMU stream ID needs to be
misleadingly set for the I2C controllers in device tree.

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Cristian Marussi
7b0ae4c7b9 firmware: arm_scmi: Cleanup the core driver removal callback
[ Upstream commit 3f4071cbd2063b917486d1047a4da47718215fee ]

Platform drivers .remove callbacks are not supposed to fail and report
errors. Such errors are indeed ignored by the core platform drivers
and the driver unbind process is anyway completed.

The SCMI core platform driver as it is now, instead, bails out reporting
an error in case of an explicit unbind request.

Fix the removal path by adding proper device links between the core SCMI
device and the SCMI protocol devices so that a full SCMI stack unbind is
triggered when the core driver is removed. The remove process does not
bail out anymore on the anomalous conditions triggered by an explicit
unbind but the user is still warned.

Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Link: https://lore.kernel.org/r/20221028140833.280091-1-cristian.marussi@arm.com
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Mario Limonciello
1a8a2fef27 ACPI: x86: Add another system to quirk list for forcing StorageD3Enable
[ Upstream commit 2124becad797245d49252d2d733aee0322233d7e ]

commit 018d6711c26e4 ("ACPI: x86: Add a quirk for Dell Inspiron 14 2-in-1
for StorageD3Enable") introduced a quirk to allow a system with ambiguous
use of _ADR 0 to force StorageD3Enable.

Julius Brockmann reports that Inspiron 16 5625 suffers that same symptoms.
Add this other system to the list as well.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=216440
Reported-and-tested-by: Julius Brockmann <mail@juliusbrockmann.com>
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Benjamin Coddington
8a03a4a5cf NFSv4: Retry LOCK on OLD_STATEID during delegation return
[ Upstream commit f5ea16137a3fa2858620dc9084466491c128535f ]

There's a small window where a LOCK sent during a delegation return can
race with another OPEN on client, but the open stateid has not yet been
updated.  In this case, the client doesn't handle the OLD_STATEID error
from the server and will lose this lock, emitting:
"NFS: nfs4_handle_delegation_recall_error: unhandled error -10024".

Fix this by sending the task through the nfs4 error handling in
nfs4_lock_done() when we may have to reconcile our stateid with what the
server believes it to be.  For this case, the result is a retry of the
LOCK operation with the updated stateid.

Reported-by: Gonzalo Siero Humet <gsierohu@redhat.com>
Signed-off-by: Benjamin Coddington <bcodding@redhat.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Qu Wenruo
49ca2227c4 btrfs: raid56: properly handle the error when unable to find the missing stripe
[ Upstream commit f15fb2cd979a07fbfc666e2f04b8b30ec9233b2a ]

In raid56_alloc_missing_rbio(), if we can not determine where the
missing device is inside the full stripe, we just BUG_ON().

This is not necessary especially the only caller inside scrub.c is
already properly checking the return value, and will treat it as a
memory allocation failure.

Fix the error handling by:

- Add an extra warning for the reason
  Although personally speaking it may be better to be an ASSERT().

- Properly free the allocated rbio

Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Michael Margolin
0f7bd3a2df RDMA/efa: Add EFA 0xefa2 PCI ID
[ Upstream commit b75927cff13e0b3b652a12da7eb9a012911799e8 ]

Add support for 0xefa2 devices.

Reviewed-by: Firas Jahjah <firasj@amazon.com>
Reviewed-by: Yossi Leybovich <sleybo@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Link: https://lore.kernel.org/r/20221020151949.1768-1-mrgolin@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Hans de Goede
a42d4363e7 ACPI: scan: Add LATT2021 to acpi_ignore_dep_ids[]
[ Upstream commit fa153b7cddce795662d38f78a87612c166c0f692 ]

Some x86/ACPI laptops with MIPI cameras have a LATT2021 ACPI device
in the _DEP dependency list of the ACPI devices for the camera-sensors
(which have flags.honor_deps set).

The _DDN for the LATT2021 device is "Lattice FW Update Client Driver",
suggesting that this is used for firmware updates of something. There
is no Linux driver for this and if Linux gets support for updates it
will likely be in userspace through fwupd.

For now add the LATT2021 HID to acpi_ignore_dep_ids[] so that
acpi_dev_ready_for_enumeration() will return true once the other _DEP
dependencies are met.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:31 +01:00
Rodrigo Siqueira
004decd41b drm/amd/display: Remove wrong pipe control lock
[ Upstream commit ca08a1725d0d78efca8d2dbdbce5ea70355da0f2 ]

When using a device based on DCN32/321,
we have an issue where a second
4k@60Hz display does not light up,
and the system becomes unresponsive
for a few minutes. In the debug process,
it was possible to see a hang
in the function dcn20_post_unlock_program_front_end
in this part:

for (j = 0; j < TIMEOUT_FOR_PIPE_ENABLE_MS*1000
	&& hubp->funcs->hubp_is_flip_pending(hubp); j++)
	mdelay(1);
}

The hubp_is_flip_pending always returns positive
for waiting pending flips which is a symptom of
pipe hang. Additionally, the dmesg log shows
this message after a few minutes:

  BUG: soft lockup - CPU#4 stuck for 26s!
  ...
  [  +0.000003]  dcn20_post_unlock_program_front_end+0x112/0x340 [amdgpu]
  [  +0.000171]  dc_commit_state_no_check+0x63d/0xbf0 [amdgpu]
  [  +0.000155]  ? dc_validate_global_state+0x358/0x3d0 [amdgpu]
  [  +0.000154]  dc_commit_state+0xe2/0xf0 [amdgpu]

This confirmed the hypothesis that we had a pipe
hanging somewhere. Next, after checking the
ftrace entries, we have the below weird
sequence:

 [..]
  2)               |        dcn10_lock_all_pipes [amdgpu]() {
  2)   0.120 us    |          optc1_is_tg_enabled [amdgpu]();
  2)               |          dcn20_pipe_control_lock [amdgpu]() {
  2)               |            dc_dmub_srv_clear_inbox0_ack [amdgpu]() {
  2)   0.121 us    |              amdgpu_dm_dmub_reg_write [amdgpu]();
  2)   0.551 us    |            }
  2)               |            dc_dmub_srv_send_inbox0_cmd [amdgpu]() {
  2)   0.110 us    |              amdgpu_dm_dmub_reg_write [amdgpu]();
  2)   0.511 us    |            }
  2)               |            dc_dmub_srv_wait_for_inbox0_ack [amdgpu]() {
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
  2)   0.110 us    |              amdgpu_dm_dmub_reg_read [amdgpu]();
 [..]

We are not expected to read from dmub register
so many times and for so long. From the trace log,
it was possible to identify that the function
dcn20_pipe_control_lock was triggering the dmub
operation when it was unnecessary and causing
the hang issue. This commit drops the unnecessary
dmub code and, consequently, fixes the second display not
lighting up the issue.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Shuming Fan
7779efbb99 ASoC: rt1308-sdw: add the default value of some registers
[ Upstream commit 75d8b1662ca5c20cf8365575222abaef18ff1f50 ]

The driver missed the default value of register 0xc070/0xc360.
This patch adds that default value to avoid invalid register access
when the device doesn't be enumerated yet.
BugLink: https://github.com/thesofproject/linux/issues/3924

Signed-off-by: Shuming Fan <shumingf@realtek.com>
Link: https://lore.kernel.org/r/20221019095715.31082-1-shumingf@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Ricardo Cañuelo
ef1e4ed858 selftests/intel_pstate: fix build for ARCH=x86_64
[ Upstream commit beb7d862ed4ac6aa14625418970f22a7d55b8615 ]

Handle the scenario where the build is launched with the ARCH envvar
defined as x86_64.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Ricardo Cañuelo
dfd3cc1ef3 selftests/futex: fix build for clang
[ Upstream commit 03cab65a07e083b6c1010fbc8f9b817e9aca75d9 ]

Don't use the test-specific header files as source files to force a
target dependency, as clang will complain if more than one source file
is used for a compile command with a single '-o' flag.

Use the proper Makefile variables instead as defined in
tools/testing/selftests/lib.mk.

Signed-off-by: Ricardo Cañuelo <ricardo.canuelo@collabora.com>
Reviewed-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Pierre-Louis Bossart
648467236c ASoC: Intel: sof_sdw: add quirk variant for LAPBC710 NUC15
[ Upstream commit 41deb2db64997d01110faaf763bd911d490dfde7 ]

Some NUC15 LAPBC710 devices don't expose the same DMI information as
the Intel reference, add additional entry in the match table.

BugLink: https://github.com/thesofproject/linux/issues/3885
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/20221017204054.207512-1-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Siarhei Volkau
64ee750c29 ASoC: codecs: jz4725b: fix capture selector naming
[ Upstream commit 80852f8268769715db335a22305e81a0c4a38a84 ]

At the moment Capture source selector appears on Playback
tab in the alsamixer and has a senseless name.

Let's fix that.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Link: https://lore.kernel.org/r/20221016132648.3011729-5-lis8215@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Siarhei Volkau
150b74cd06 ASoC: codecs: jz4725b: use right control for Capture Volume
[ Upstream commit 1538e2c8c9b7e7a656effcc6e4e7cfe8c1b405fd ]

Line In Bypass control is used as Master Capture at the moment
this is completely incorrect.

Current control routed to Mixer instead of ADC, thus can't affect
Capture path. ADC control shall be used instead.

ADC volume control parameters are different, so the patch fixes that
as well. Manual says (16.6.3.2 Programmable input attenuation amplifier:
PGATM) that gain varies in range 0dB..22.5dB with 1.5dB step.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Link: https://lore.kernel.org/r/20221016132648.3011729-4-lis8215@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:30 +01:00
Siarhei Volkau
5352d8b315 ASoC: codecs: jz4725b: fix reported volume for Master ctl
[ Upstream commit 088777bf65b98cfa4b5378119d0a7d49a58ece44 ]

DAC volume control is the Master Playback Volume at the moment
and it reports wrong levels in alsamixer and other alsa apps.

The patch fixes that, as stated in manual on the jz4725b SoC
(16.6.3.4 Programmable attenuation: GOD) the ctl range varies
from -22.5dB to 0dB with 1.5dB step.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Link: https://lore.kernel.org/r/20221016132648.3011729-3-lis8215@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Siarhei Volkau
85134577a7 ASoC: codecs: jz4725b: add missed Line In power control bit
[ Upstream commit 1013999b431b4bcdc1f5ae47dd3338122751db31 ]

Line In path stayed powered off during capturing or
bypass to mixer.

Signed-off-by: Siarhei Volkau <lis8215@gmail.com>
Link: https://lore.kernel.org/r/20221016132648.3011729-2-lis8215@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Mauro Lima
5e61dffb16 spi: intel: Fix the offset to get the 64K erase opcode
[ Upstream commit 6a43cd02ddbc597dc9a1f82c1e433f871a2f6f06 ]

According to documentation, the 64K erase opcode is located in VSCC
range [16:23] instead of [8:15].
Use the proper value to shift the mask over the correct range.

Signed-off-by: Mauro Lima <mauro.lima@eclypsium.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Link: https://lore.kernel.org/r/20221012152135.28353-1-mauro.lima@eclypsium.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Xiaolei Wang
c697cb2e66 ASoC: wm8962: Add an event handler for TEMP_HP and TEMP_SPK
[ Upstream commit ee1aa2ae3eaa96e70229fa61deee87ef4528ffdf ]

In wm8962 driver, the WM8962_ADDITIONAL_CONTROL_4 is used as a volatile
register, but this register mixes a bunch of volatile status bits and a
bunch of non-volatile control bits. The dapm widgets TEMP_HP and
TEMP_SPK leverages the control bits in this register. After the wm8962
probe, the regmap will bet set to cache only mode, then a read error
like below would be triggered when trying to read the initial power
state of the dapm widgets TEMP_HP and TEMP_SPK.
  wm8962 0-001a: ASoC: error at soc_component_read_no_lock
  on wm8962.0-001a: -16

In order to fix this issue, we add event handler to actually power
up/down these widgets. With this change, we also need to explicitly
power off these widgets in the wm8962 probe since they are enabled
by default.

Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Tested-by: Adam Ford <aford173@gmail.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221010092014.2229246-1-xiaolei.wang@windriver.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Derek Fang
569085124d ASoC: rt1019: Fix the TDM settings
[ Upstream commit f2635d45a750182c6d5de15e2d6b059e0c302d7e ]

Complete the missing and correct the TDM settings.

Signed-off-by: Derek Fang <derek.fang@realtek.com>
Link: https://lore.kernel.org/r/20221012030102.4042-1-derek.fang@realtek.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Zhang Qilong
4160a515c7 ASoC: mt6660: Keep the pm_runtime enables before component stuff in mt6660_i2c_probe
[ Upstream commit c4ab29b0f3a6f1e167c5a627f7cd036c1d2b7d65 ]

It would be better to keep the pm_runtime enables before the
IRQ and component stuff. Both of those could start triggering
PM runtime events.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221008140522.134912-1-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Zhang Qilong
2963ec4535 ASoC: wm8997: Revert "ASoC: wm8997: Fix PM disable depth imbalance in wm8997_probe"
[ Upstream commit 68ce83e3bb26feba0fcdd59667fde942b3a600a1 ]

This reverts commit 41a736ac20602f64773e80f0f5b32cde1830a44a.

The pm_runtime_disable is redundant when error returns in
wm8997_probe, we just revert the old patch to fix it.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221010114852.88127-4-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:29 +01:00
Zhang Qilong
30a2f9479c ASoC: wm5110: Revert "ASoC: wm5110: Fix PM disable depth imbalance in wm5110_probe"
[ Upstream commit 7d4e966f4cd73ff69bf06934e8e14a33fb7ef447 ]

This reverts commit 86b46bf1feb83898d89a2b4a8d08d21e9ea277a7.

The pm_runtime_disable is redundant when error returns in
wm5110_probe, we just revert the old patch to fix it.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221010114852.88127-3-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:28 +01:00
Zhang Qilong
3bf6da38a2 ASoC: wm5102: Revert "ASoC: wm5102: Fix PM disable depth imbalance in wm5102_probe"
[ Upstream commit de71d7567e358effd06dfc3e2a154b25f1331c10 ]

This reverts commit fcbb60820cd3008bb44334a0395e5e57ccb77329.

The pm_runtime_disable is redundant when error returns in
wm5102_probe, we just revert the old patch to fix it.

Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20221010114852.88127-2-zhangqilong3@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2022-11-26 09:24:28 +01:00
Yang Shi
94fa250ea5 mm: shmem: don't truncate page if memory failure happens
commit a7605426666196c5a460dd3de6f8dac1d3c21f00 upstream.

The current behavior of memory failure is to truncate the page cache
regardless of dirty or clean.  If the page is dirty the later access
will get the obsolete data from disk without any notification to the
users.  This may cause silent data loss.  It is even worse for shmem
since shmem is in-memory filesystem, truncating page cache means
discarding data blocks.  The later read would return all zero.

The right approach is to keep the corrupted page in page cache, any
later access would return error for syscalls or SIGBUS for page fault,
until the file is truncated, hole punched or removed.  The regular
storage backed filesystems would be more complicated so this patch is
focused on shmem.  This also unblock the support for soft offlining
shmem THP.

[akpm@linux-foundation.org: coding style fixes]
[arnd@arndb.de: fix uninitialized variable use in me_pagecache_clean()]
  Link: https://lkml.kernel.org/r/20211022064748.4173718-1-arnd@kernel.org
[Fix invalid pointer dereference in shmem_read_mapping_page_gfp() with a
 slight different implementation from what Ajay Garg <ajaygargnsit@gmail.com>
 and Muchun Song <songmuchun@bytedance.com> proposed and reworked the
 error handling of shmem_write_begin() suggested by Linus]
  Link: https://lore.kernel.org/linux-mm/20211111084617.6746-1-ajaygargnsit@gmail.com/

Link: https://lkml.kernel.org/r/20211020210755.23964-6-shy828301@gmail.com
Link: https://lkml.kernel.org/r/20211116193247.21102-1-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ajay Garg <ajaygargnsit@gmail.com>
Cc: Muchun Song <songmuchun@bytedance.com>
Cc: Andy Lavr <andy.lavr@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-26 09:24:28 +01:00
Yang Shi
003fa19591 mm: hwpoison: handle non-anonymous THP correctly
commit 4966455d9100236fd6dd72b0cd00818435fdb25d upstream.

Currently hwpoison doesn't handle non-anonymous THP, but since v4.8 THP
support for tmpfs and read-only file cache has been added.  They could
be offlined by split THP, just like anonymous THP.

Link: https://lkml.kernel.org/r/20211020210755.23964-7-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Acked-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-26 09:24:28 +01:00
Yang Shi
a62b1bc603 mm: hwpoison: refactor refcount check handling
commit dd0f230a0a80ff396c7ce587f16429f2a8131344 upstream.

Memory failure will report failure if the page still has extra pinned
refcount other than from hwpoison after the handler is done.  Actually
the check is not necessary for all handlers, so move the check into
specific handlers.  This would make the following keeping shmem page in
page cache patch easier.

There may be expected extra pin for some cases, for example, when the
page is dirty and in swapcache.

Link: https://lkml.kernel.org/r/20211020210755.23964-5-shy828301@gmail.com
Signed-off-by: Yang Shi <shy828301@gmail.com>
Signed-off-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Suggested-by: Naoya Horiguchi <naoya.horiguchi@nec.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Oscar Salvador <osalvador@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Naoya Horiguchi <naoya.horiguchi@linux.dev>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-26 09:24:28 +01:00
Greg Kroah-Hartman
3df0eeae4d Linux 5.15.79
Link: https://lore.kernel.org/r/20221114124448.729235104@linuxfoundation.org
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Shuah Khan <skhan@linuxfoundation.org>
Tested-by: Slade Watkins <srw@sladewatkins.net>
Tested-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Kelsey Steele <kelseysteele@linux.microsoft.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Ron Economos <re@w6rz.net>
Link: https://lore.kernel.org/r/20221115140300.534663914@linuxfoundation.org
Tested-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Allen Pais <apais@linux.microsoft.com>
Tested-by: Bagas Sanjaya <bagasdotme@gmail.com>
Tested-by: Linux Kernel Functional Testing <lkft@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
v5.15.79
2022-11-16 09:58:31 +01:00
Borislav Petkov
599b24eedf x86/cpu: Restore AMD's DE_CFG MSR after resume
commit 2632daebafd04746b4b96c2f26a6021bc38f6209 upstream.

DE_CFG contains the LFENCE serializing bit, restore it on resume too.
This is relevant to older families due to the way how they do S3.

Unify and correct naming while at it.

Fixes: e4d0e84e4907 ("x86/cpu/AMD: Make LFENCE a serializing instruction")
Reported-by: Andrew Cooper <Andrew.Cooper3@citrix.com>
Reported-by: Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:31 +01:00
Eric Dumazet
9132fa043f net: tun: call napi_schedule_prep() to ensure we own a napi
commit 07d120aa33cc9d9115753d159f64d20c94458781 upstream.

A recent patch exposed another issue in napi_get_frags()
caught by syzbot [1]

Before feeding packets to GRO, and calling napi_complete()
we must first grab NAPI_STATE_SCHED.

[1]
WARNING: CPU: 0 PID: 3612 at net/core/dev.c:6076 napi_complete_done+0x45b/0x880 net/core/dev.c:6076
Modules linked in:
CPU: 0 PID: 3612 Comm: syz-executor408 Not tainted 6.1.0-rc3-syzkaller-00175-g1118b2049d77 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022
RIP: 0010:napi_complete_done+0x45b/0x880 net/core/dev.c:6076
Code: c1 ea 03 0f b6 14 02 4c 89 f0 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 24 04 00 00 41 89 5d 1c e9 73 fc ff ff e8 b5 53 22 fa <0f> 0b e9 82 fe ff ff e8 a9 53 22 fa 48 8b 5c 24 08 31 ff 48 89 de
RSP: 0018:ffffc90003c4f920 EFLAGS: 00010293
RAX: 0000000000000000 RBX: 0000000000000030 RCX: 0000000000000000
RDX: ffff8880251c0000 RSI: ffffffff875a58db RDI: 0000000000000007
RBP: 0000000000000001 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888072d02628
R13: ffff888072d02618 R14: ffff888072d02634 R15: 0000000000000000
FS: 0000555555f13300(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055c44d3892b8 CR3: 00000000172d2000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
napi_complete include/linux/netdevice.h:510 [inline]
tun_get_user+0x206d/0x3a60 drivers/net/tun.c:1980
tun_chr_write_iter+0xdb/0x200 drivers/net/tun.c:2027
call_write_iter include/linux/fs.h:2191 [inline]
do_iter_readv_writev+0x20b/0x3b0 fs/read_write.c:735
do_iter_write+0x182/0x700 fs/read_write.c:861
vfs_writev+0x1aa/0x630 fs/read_write.c:934
do_writev+0x133/0x2f0 fs/read_write.c:977
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f37021a3c19

Fixes: 1118b2049d77 ("net: tun: Fix memory leaks of napi_get_frags")
Reported-by: syzbot <syzkaller@googlegroups.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Wang Yufen <wangyufen@huawei.com>
Link: https://lore.kernel.org/r/20221107180011.188437-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Philip Yang
1dea25e25a drm/amdkfd: Migrate in CPU page fault use current mm
commit 3a876060892ba52dd67d197c78b955e62657d906 upstream.

migrate_vma_setup shows below warning because we don't hold another
process mm mmap_lock. We should use current vmf->vma->vm_mm instead, the
caller already hold current mmap lock inside CPU page fault handler.

 WARNING: CPU: 10 PID: 3054 at include/linux/mmap_lock.h:155 find_vma
 Call Trace:
  walk_page_range+0x76/0x150
  migrate_vma_setup+0x18a/0x640
  svm_migrate_vram_to_ram+0x245/0xa10 [amdgpu]
  svm_migrate_to_ram+0x36f/0x470 [amdgpu]
  do_swap_page+0xcfe/0xec0
  __handle_mm_fault+0x96b/0x15e0
  handle_mm_fault+0x13f/0x3e0
  do_user_addr_fault+0x1e7/0x690

Fixes: e1f84eef313f ("drm/amdkfd: handle CPU fault on COW mapping")
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Anders Roxell
a1c303fbd4 marvell: octeontx2: build error: unknown type name 'u64'
commit 6312d52838b21f5c4a5afa1269a00df4364fd354 upstream.

Building an allmodconfig kernel arm64 kernel, the following build error
shows up:

In file included from drivers/crypto/marvell/octeontx2/cn10k_cpt.c:4:
include/linux/soc/marvell/octeontx2/asm.h:38:15: error: unknown type name 'u64'
   38 | static inline u64 otx2_atomic64_fetch_add(u64 incr, u64 *ptr)
      |               ^~~

Include linux/types.h in asm.h so the compiler knows what the type
'u64' are.

Fixes: af3826db74d1 ("octeontx2-pf: Use hardware register for CQE count")
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Link: https://lore.kernel.org/r/20211013135743.3826594-1-anders.roxell@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Tudor Ambarus
d948b22834 dmaengine: at_hdmac: Check return code of dma_async_device_register
commit c47e6403fa099f200868d6b106701cb42d181d2b upstream.

dma_async_device_register() can fail, check the return code and display an
error.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-16-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Tudor Ambarus
c556ecf32a dmaengine: at_hdmac: Fix impossible condition
commit 28cbe5a0a46a6637adbda52337d7b2777fc04027 upstream.

The iterator can not be greater than ATC_MAX_DSCR_TRIALS, as the for loop
will stop when i == ATC_MAX_DSCR_TRIALS. While here, use the common "i"
name for the iterator.

Fixes: 93dce3a6434f ("dmaengine: at_hdmac: fix residue computation")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-15-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Tudor Ambarus
8a941ff34e dmaengine: at_hdmac: Don't allow CPU to reorder channel enable
commit 580ee84405c27d6ed419abe4d2b3de1968abdafd upstream.

at_hdmac uses __raw_writel for register writes. In the absence of a
barrier, the CPU may reorder the register operations.
Introduce a write memory barrier so that the CPU does not reorder the
channel enable, thus the start of the transfer, without making sure that
all the pre-required register fields are already written.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-14-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Tudor Ambarus
53831f7a13 dmaengine: at_hdmac: Fix completion of unissued descriptor in case of errors
commit ef2cb4f0ce479f77607b04c4b0414bf32f863ee8 upstream.

In case the controller detected an error, the code took the chance to move
all the queued (submitted) descriptors to the active (issued) list. This
was wrong as if there were any descriptors in the submitted list they were
moved to the issued list without actually issuing them to the controller,
thus a completion could be raised without even fireing the descriptor.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-13-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:30 +01:00
Tudor Ambarus
14f5462e4a dmaengine: at_hdmac: Fix descriptor handling when issuing it to hardware
commit ba2423633ba646e1df20e30cb3cf35495c16f173 upstream.

As it was before, the descriptor was issued to the hardware without adding
it to the active (issued) list. This could result in a completion of other
descriptor, or/and in the descriptor never being completed.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-12-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00
Tudor Ambarus
5482403228 dmaengine: at_hdmac: Fix concurrency over the active list
commit 03ed9ba357cc78116164b90b87f45eacab60b561 upstream.

The tasklet (atc_advance_work()) did not held the channel lock when
retrieving the first active descriptor, causing concurrency problems if
issue_pending() was called in between. If issue_pending() was called
exactly after the lock was released in the tasklet (atc_advance_work()),
atc_chain_complete() could complete a descriptor for which the controller
has not yet raised an interrupt.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-11-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00
Tudor Ambarus
82ca19414f dmaengine: at_hdmac: Free the memset buf without holding the chan lock
commit 6ba826cbb57d675f447b59323204d1473bbd5593 upstream.

There's no need to hold the channel lock when freeing the memset buf, as
the operation has already completed. Free the memset buf without holding
the channel lock.

Fixes: 4d112426c344 ("dmaengine: hdmac: Add memset capabilities")
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-10-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00
Tudor Ambarus
8fd36e069d dmaengine: at_hdmac: Fix concurrency over descriptor
commit 06988949df8c3007ad82036d3606d8ae72ed9000 upstream.

The descriptor was added to the free_list before calling the callback,
which could result in reissuing of the same descriptor and calling of a
single callback for both. Move the decriptor to the free list after the
callback is invoked.

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-9-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00
Tudor Ambarus
1ee012d452 dmaengine: at_hdmac: Fix concurrency problems by removing atc_complete_all()
commit c6babed879fbe82796a601bf097649e07382db46 upstream.

atc_complete_all() had concurrency bugs, thus remove it:
1/ atc_complete_all() in its entirety was buggy, as when the atchan->queue
list (the one that contains descriptors that are not yet issued to the
hardware) contained descriptors, it fired just the first from the
atchan->queue, but moved all the desc from atchan->queue to
atchan->active_list and considered them all as fired. This could result in
calling the completion of a descriptor that was not yet issued to the
hardware.
2/ when in tasklet at atc_advance_work() time, atchan->active_list was
queried without holding the lock of the chan. This can result in
atchan->active_list concurrency problems between the tasklet and
issue_pending().

Fixes: dc78baa2b90b ("dmaengine: at_hdmac: new driver for the Atmel AHB DMA Controller")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-8-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00
Tudor Ambarus
90c1b07406 dmaengine: at_hdmac: Protect atchan->status with the channel lock
commit 6e5ad28d16f082efeae3d0bd2e31f24bed218019 upstream.

Now that the complete callback call was removed from
device_terminate_all(), we can protect the atchan->status with the channel
lock. The atomic bitops on atchan->status do not substitute proper locking
on the status, as one could still modify the status after the lock was
dropped in atc_terminate_all() but before the atomic bitops were executed.

Fixes: 078a6506141a ("dmaengine: at_hdmac: Fix deadlocks")
Reported-by: Peter Rosin <peda@axentia.se>
Signed-off-by: Tudor Ambarus <tudor.ambarus@microchip.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/lkml/13c6c9a2-6db5-c3bf-349b-4c127ad3496a@axentia.se/
Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Link: https://lore.kernel.org/r/20221025090306.297886-1-tudor.ambarus@microchip.com
Link: https://lore.kernel.org/r/20221025090306.297886-7-tudor.ambarus@microchip.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-11-16 09:58:29 +01:00