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1,169,205 commits

Author SHA1 Message Date
Julia Lawall
c34983c941 can: ucan: fix typos in comments
Various spelling mistakes in comments.
Detected with the help of Coccinelle.

Link: https://lore.kernel.org/all/20220314115354.144023-28-Julia.Lawall@inria.fr
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Acked-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-03-16 21:41:40 +01:00
Amit Kumar Mahapatra
7843d3c8e5 dt-bindings: can: xilinx_can: Convert Xilinx CAN binding to YAML
Convert Xilinx CAN binding documentation to YAML.

Link: https://lore.kernel.org/all/20220316171105.17654-1-amit.kumar-mahapatra@xilinx.com
Signed-off-by: Amit Kumar Mahapatra <amit.kumar-mahapatra@xilinx.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-03-16 21:41:40 +01:00
Oliver Hartkopp
42bf50a179 can: isotp: support MSG_TRUNC flag when reading from socket
When providing the MSG_TRUNC flag via recvmsg() syscall the return value
provides the real length of the packet or datagram, even when it was longer
than the passed buffer.

Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol")
Link: https://github.com/linux-can/can-utils/issues/347#issuecomment-1065932671
Link: https://lore.kernel.org/all/20220316164258.54155-3-socketcan@hartkopp.net
Suggested-by: Derek Will <derekrobertwill@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-03-16 21:41:40 +01:00
Oliver Hartkopp
30ffd5332e can: isotp: return -EADDRNOTAVAIL when reading from unbound socket
When reading from an unbound can-isotp socket the syscall blocked
indefinitely. As unbound sockets (without given CAN address information)
do not make sense anyway we directly return -EADDRNOTAVAIL on read()
analogue to the known behavior from sendmsg().

Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol")
Link: https://github.com/linux-can/can-utils/issues/349
Link: https://lore.kernel.org/all/20220316164258.54155-2-socketcan@hartkopp.net
Suggested-by: Derek Will <derekrobertwill@gmail.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-03-16 21:41:40 +01:00
Oliver Hartkopp
3ea566422c can: isotp: sanitize CAN ID checks in isotp_bind()
Syzbot created an environment that lead to a state machine status that
can not be reached with a compliant CAN ID address configuration.
The provided address information consisted of CAN ID 0x6000001 and 0xC28001
which both boil down to 11 bit CAN IDs 0x001 in sending and receiving.

Sanitize the SFF/EFF CAN ID values before performing the address checks.

Fixes: e057dd3fc2 ("can: add ISO 15765-2:2016 transport protocol")
Link: https://lore.kernel.org/all/20220316164258.54155-1-socketcan@hartkopp.net
Reported-by: syzbot+2339c27f5c66c652843e@syzkaller.appspotmail.com
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2022-03-16 21:41:39 +01:00
Mark Brown
753132f039
Introduce IPC abstraction for SOF topology parsing
Merge series from Ranjani Sridharan <ranjani.sridharan@linux.intel.com>:

This patchset makes the topology parsing layer in the SOF driver
IPC-agnostic in preparation for supporting the new IPC version
introduced in the SOF firmware. These patches purely contain abstraction
changes for the current IPC version (IPC3) supported and do not introduce
any functional changes.
2022-03-16 20:34:23 +00:00
Deren Wu
24e69f6bc3 mt76: fix monitor rx FCS error in DFS channel
When setup monitor mode in DFS channel, mt76 send CH_SWITCH_DFS to
fw for channel config. This would cause rx performance bad while
monitoring frames. Settings CH_SWITCH_NORMAL in monitor mode would
get the same performance as normal channels.

Reviewed-by: Shayne Chen <shayne.chen@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-16 21:18:06 +01:00
Sean Wang
1f12fa34e5 mt76: mt7921: don't enable beacon filter when IEEE80211_CONF_CHANGE_MONITOR is set
IEEE80211_CONF_CHANGE_MONITOR would be set every time even when vif runs as
sta mode.

If vif runs as sta mode, the beacon filter would be falsely enabled
earlier than the associated state.

That is not the behavior the firmware expects and also breaks the original
logic of sta mode. Thus, we only limit the operation to set the beacon
filter only for monitor mode when IEEE80211_CONF_CHANGE_MONITOR is set.

Fixes: 4ad65a5461 ("mt76: mt7921: toggle runtime-pm adding a monitor vif")
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-16 21:15:10 +01:00
Deren Wu
32bfd77462 mt76: fix wrong HE data rate in sniffer tool
Due to the missing IEEE80211_RADIOTAP_HE_DATA1_BW_RU_ALLOC_KNOWN in
status report, the HE rate in wirehsark/tcpdump always shows wrong value.
Applications will refer to IEEE80211_RADIOTAP_HE_DATA5_DATA_BW_RU_ALLOC
when the flag is set and shows the correct data rate.

Reviewed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Deren Wu <deren.wu@mediatek.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-16 21:15:10 +01:00
Lorenzo Bianconi
6b7f9aff7c mt76: mt7915: introduce 802.11ax multi-bss support
Introduce mbss mcu APIs to enable 802.11ax multi-bss AP support for
mt7915 devices

Tested-by: Money Wang <money.wang@mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Co-developed-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Money Wang <money.wang@mediatek.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
2022-03-16 21:13:03 +01:00
Jakub Kicinski
b1351527f1 Merge branch 'devlink-expose-instance-locking-and-simplify-port-splitting'
Jakub Kicinski says:

====================
devlink: expose instance locking and simplify port splitting

This series puts the devlink ports fully under the devlink instance
lock's protection. As discussed in the past it implements my preferred
solution of exposing the instance lock to the drivers. This way drivers
which want to support port splitting can lock the devlink instance
themselves on the probe path, and we can take that lock in the core
on the split/unsplit paths.

nfp and mlxsw are converted, with slightly deeper changes done in
nfp since I'm more familiar with that driver.

Now that the devlink port is protected we can pass a pointer to
the drivers, instead of passing a port index and forcing the drivers
to do their own lookups. Both nfp and mlxsw can container_of() to
their own structures.
====================

Link: https://lore.kernel.org/r/20220315060009.1028519-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:54 -07:00
Jakub Kicinski
706217c1ce devlink: pass devlink_port to port_split / port_unsplit callbacks
Now that devlink ports are protected by the instance lock
it seems natural to pass devlink_port as an argument to
the port_split / port_unsplit callbacks.

This should save the drivers from doing a lookup.

In theory drivers may have supported unsplitting ports
which were not registered prior to this change.

Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:45 -07:00
Jakub Kicinski
49e83bbe8c devlink: hold the instance lock in port_split / port_unsplit callbacks
Let the core take the devlink instance lock around port splitting
and remove the now redundant locking in the drivers.

Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:42 -07:00
Jakub Kicinski
5e8930aa86 eth: mlxsw: switch to explicit locking for port registration
Explicitly lock the devlink instance and use devl_ API.

This will be used by the subsequent patch to invoke
.port_split / .port_unsplit callbacks with devlink
instance lock held.

Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Tested-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:39 -07:00
Jakub Kicinski
162cca4292 eth: nfp: replace driver's "pf" lock with devlink instance lock
The whole reason for existence of the pf mutex is that we could
not lock the devlink instance around port splitting. There are
more types of reconfig which can make ports appear or disappear.
Now that the devlink instance lock is exposed to drivers and
"locked" helpers exist we can switch to using the devlink lock
directly.

Next patches will move the locking inside .port_(un)split to
the core.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:37 -07:00
Jakub Kicinski
8a38f2cc96 eth: nfp: wrap locking assertions in helpers
We can replace the PF lock with devlink instance lock in subsequent
changes. To make the patches easier to comprehend and limit line
lengths - factor out the existing locking assertions.

No functional changes.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:35 -07:00
Jakub Kicinski
2cb7b4890d devlink: expose instance locking and add locked port registering
It should be familiar and beneficial to expose devlink instance
lock to the drivers. This way drivers can block devlink from
calling them during critical sections without breakneck locking.

Add port helpers, port splitting callbacks will be the first
target.

Use 'devl_' prefix for "explicitly locked" API. Initial RFC used
'__devlink' but that's too much typing.

devl_lock_is_held() is not defined without lockdep, which is
the same behavior as lockdep_is_held() itself.

Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 12:56:31 -07:00
Martin Jücker
160d0603a1
ARM: defconfig: add SMB347 charger driver for p4note
The Summit SMB347 charger is part of the P4Note family of devices (e.g.
Samsung Galaxy Note 10.1 (GT-N8010/N8013), enable the driver in exynos
and multi_v7 defconfigs.

Signed-off-by: Martin Jücker <martin.juecker@gmail.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/4f1f6a4f8200855d07f3faed80ec5cc320e40941.1643919230.git.martin.juecker@gmail.com
Link: https://lore.kernel.org/r/20220316154309.436028-3-krzysztof.kozlowski@canonical.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-16 20:05:15 +01:00
Linus Torvalds
a46310bfae Final EFI fix for v5.17
- avoid spurious warnings about unknown boot parameters
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Merge tag 'efi-urgent-for-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI fix from Ard Biesheuvel:
 "Avoid spurious warnings about unknown boot parameters"

* tag 'efi-urgent-for-v5.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: fix return value of __setup handlers
2022-03-16 11:57:46 -07:00
Alim Akhtar
bfb60ede2c
arm64: dts: fsd: Add the MCT support
Add node relevant to support MCT, which is used as
one of the system timer on this SoC.

Signed-off-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Link: https://lore.kernel.org/r/20220223171858.11384-1-alim.akhtar@samsung.com
Link: https://lore.kernel.org/r/20220316154309.436028-2-krzysztof.kozlowski@canonical.com'
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-16 19:57:40 +01:00
Jens Axboe
521d61fc76 io_uring: move req->poll_refs into previous struct hole
This serves two purposes:

- We now have the last cacheline mostly unused for generic workloads,
  instead of having to pull in the poll refs explicitly for workloads
  that rely on poll arming.

- It shrinks the io_kiocb from 232 to 224 bytes.

Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-03-16 12:53:23 -06:00
Linus Torvalds
d34c58247f Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a bug where qcom-rng can return a buffer that is not
  completely filled with random data"

* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: qcom-rng - ensure buffer for generate is completely filled
2022-03-16 11:50:35 -07:00
Vladimir Oltean
1447c63580
Revert "arm64: dts: freescale: Fix 'interrupt-map' parent address cells"
This reverts commit 869f0ec048. That
updated the expected device tree binding format for the ls-extirq
driver, without also updating the parsing code (ls_extirq_parse_map)
to the new format.

The context is that the ls-extirq driver uses the standard
"interrupt-map" OF property in a non-standard way, as suggested by
Rob Herring during review:
https://lore.kernel.org/lkml/20190927161118.GA19333@bogus/

This has turned out to be problematic, as Marc Zyngier discovered
through commit 0412841812 ("of/irq: Allow matching of an interrupt-map
local to an interrupt controller"), later fixed through commit
de4adddcbc ("of/irq: Add a quirk for controllers with their own
definition of interrupt-map"). Marc's position, expressed on multiple
opportunities, is that:

(a) [ making private use of the reserved "interrupt-map" name in a
    driver ] "is wrong, by the very letter of what an interrupt-map
    means. If the interrupt map points to an interrupt controller,
    that's the target for the interrupt."
https://lore.kernel.org/lkml/87k0g8jlmg.wl-maz@kernel.org/

(b) [ updating the driver's bindings to accept a non-reserved name for
    this property, as an alternative, is ] "is totally pointless. These
    machines have been in the wild for years, and existing DTs will be
    there *forever*."
https://lore.kernel.org/lkml/87ilvrk1r0.wl-maz@kernel.org/

Considering the above, the Linux kernel has quirks in place to deal with
the ls-extirq's non-standard use of the "interrupt-map". These quirks
may be needed in other operating systems that consume this device tree,
yet this is seen as the only viable solution.

Therefore, the premise of the patch being reverted here is invalid.
It doesn't matter whether the driver, in its non-standard use of the
property, complies to the standard format or not, since this property
isn't expected to be used for interrupt translation by the core.

This change restores LS1088A, LS2088A/LS2085A and LX2160A to their
previous bindings, which allows these systems to continue to use
external interrupt lines with the correct polarity.

Fixes: 869f0ec048 ("arm64: dts: freescale: Fix 'interrupt-map' parent address cells")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2022-03-16 19:41:14 +01:00
Srinivas Pandruvada
c7ff297639 thermal: int340x: Update OS policy capability handshake
Update the firmware with OS supported policies mask, so	that firmware can
relinquish its internal controls. Without this update several Tiger Lake
laptops gets performance limited with in few seconds of executing in
turbo region.

The existing way of enumerating firmware policies via IDSP method and
selecting policy by directly writing those policy UUIDS via _OSC method
is not supported in newer generation of hardware.

There is a new UUID "B23BA85D-C8B7-3542-88DE-8DE2FFCFD698" is defined for
updating policy capabilities. As part of ACPI _OSC method:

Arg0 - UUID: B23BA85D-C8B7-3542-88DE-8DE2FFCFD698
Arg1 - Rev ID: 1
Arg2 - Count: 2
Arg3 - Capability buffers: Array of Arg2 DWORDS

DWORD1: As defined in the ACPI 5.0 Specification
- Bit 0: Query Flag
- Bits 1-3: Always 0
- Bits 4-31: Reserved

DWORD2 and beyond:
- Bit0: set to 1 to indicate Intel(R) Dynamic Tuning is active, 0 to
indicate it is disabled and legacy thermal mechanism should
be enabled.
- Bit1: set to 1 to indicate Intel(R) Dynamic Tuning is controlling
active cooling, 0 to indicate bios shall enable legacy thermal
zone with active trip point.
- Bit2: set to 1 to indicate Intel(R) Dynamic Tuning is controlling
passive cooling, 0 to indicate bios shall enable legacy thermal
zone with passive trip point.
- Bit3: set to 1 to indicate Intel(R) Dynamic Tuning is handling
critical trip point, 0 to indicate bios shall enable legacy
thermal zone with critical trip point.
- Bits 4:31: Reserved

From sysfs interface, there is an existing interface to update policy
UUID using attribute "current_uuid". User space can write the same UUID
for ACTIVE, PASSIVE and CRITICAL policy. Driver converts these UUIDs to
DWORD2 Bit 1 to Bit 3. When any of the policy is activated by user
space it is assumed that dynamic tuning is active.

For example
$cd /sys/bus/platform/devices/INTC1040:00/uuids
To support active policy
$echo "3A95C389-E4B8-4629-A526-C52C88626BAE" > current_uuid
To support passive policy
$echo "42A441D6-AE6A-462b-A84B-4A8CE79027D3" > current_uuid
To support critical policy
$echo "97C68AE7-15FA-499c-B8C9-5DA81D606E0A" > current_uuid

To check all the supported policies
$cat current_uuid
3A95C389-E4B8-4629-A526-C52C88626BAE
42A441D6-AE6A-462b-A84B-4A8CE79027D3
97C68AE7-15FA-499c-B8C9-5DA81D606E0A

To match the bit format for DWORD2, rearranged enum int3400_thermal_uuid
and int3400_thermal_uuids[] by swapping current INT3400_THERMAL_ACTIVE
and INT3400_THERMAL_PASSIVE_1.

If the policies are enumerated via IDSP method then legacy method is
used, if not the new method is used to update policy support.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:40:41 +01:00
Jakub Kicinski
186abea8a8 Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec
Steffen Klassert says:

====================
pull request (net): ipsec 2022-03-16

1) Fix a kernel-info-leak in pfkey.
   From Haimin Zhang.

2) Fix an incorrect check of the return value of ipv6_skip_exthdr.
   From Sabrina Dubroca.

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec:
  esp6: fix check on ipv6_skip_exthdr's return value
  af_key: add __GFP_ZERO flag for compose_sadb_supported in function pfkey_register
====================

Link: https://lore.kernel.org/r/20220316121142.3142336-1-steffen.klassert@secunet.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 11:39:37 -07:00
Srinivas Pandruvada
668f69a5f8 thermal: int340x: Increase bitmap size
The number of policies are 10, so can't be supported by the bitmap size
of u8.

Even though there are no platfoms with these many policies, but
for correctness increase to u32.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Fixes: 16fc8eca19 ("thermal/int340x_thermal: Add additional UUIDs")
Cc: 5.1+ <stable@vger.kernel.org> # 5.1+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:36:10 +01:00
Srinivas Pandruvada
16c02447f3 Documentation: thermal: DPTF Documentation
Document Intel Dynamic Platform and Thermal Framework (DPTF)
ABI.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:32:44 +01:00
David Woodhouse
f6c46b1d62 PM: hibernate: Honour ACPI hardware signature by default for virtual guests
The ACPI specification says that OSPM should refuse to restore from
hibernate if the hardware signature changes, and should boot from
scratch. However, real BIOSes often vary the hardware signature in cases
where we *do* want to resume from hibernate, so Linux doesn't follow the
spec by default.

However, in a virtual environment there's no reason for the VMM to vary
the hardware signature *unless* it wants to trigger a clean reboot as
defined by the ACPI spec. So enable the check by default if a hypervisor
is detected.

Signed-off-by: David Woodhouse <dwmw@amazon.co.uk>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:29:32 +01:00
Srinivas Pandruvada
3d13058ed2 cpufreq: intel_pstate: Use firmware default EPP
For some specific platforms (E.g. AlderLake) the balance performance
EPP is updated from the hard coded value in the driver. This acts as
the default and balance_performance EPP. The purpose of this EPP
update is to reach maximum 1 core turbo frequency (when possible) out
of the box.

Although we can achieve the objective by using hard coded value in the
driver, there can be other EPP which can be better in terms of power.
But that will be very subjective based on platform and use cases.
This is not practical to have a per platform specific default hard coded
in the driver.

If a platform wants to specify default EPP, it can be set in the firmware.
If this EPP is not the chipset default of 0x80 (balance_perf_epp unless
driver changed it) and more performance oriented but not 0, the driver
can use this as the default and balanced_perf EPP. In this case no driver
update is required every time there is some new platform and default EPP.

If the firmware didn't update the EPP from the chipset default then
the hard coded value is used as per existing implementation.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-16 19:14:55 +01:00
Jakub Kicinski
1bbdcbaeda wireless fixes for v5.17
Third set of fixes for v5.17. We have only one revert to fix an ath10k
 regression.
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Merge tag 'wireless-2022-03-16' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless

Kalle Valo says:

====================
wireless fixes for v5.17

Third set of fixes for v5.17. We have only one revert to fix an ath10k
regression.

* tag 'wireless-2022-03-16' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
  Revert "ath10k: drop beacon and probe response which leak from other channel"
====================

Link: https://lore.kernel.org/r/20220316130249.B5225C340EC@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2022-03-16 11:08:09 -07:00
Matthew Auld
7fe7c2a679 drm/i915: fixup the initial fb base on DGFX
On integrated it looks like the GGTT base should always 1:1 maps to
somewhere within DSM. On discrete the base seems to be pre-programmed with
a normal lmem address, and is not 1:1 mapped with the base address. On
such devices probe the lmem address directly from the PTE.

v2(Ville):
  - The base is actually the pre-programmed GGTT address, which is then
    meant to 1:1 map to somewhere inside dsm. In the case of dgpu the
    base looks to just be some offset within lmem, but this also happens
    to be the exact dsm start, on dg1. Therefore we should only need to
    fudge the physical address, before allocating from stolen.
  - Bail if it's not located in dsm.
v3:
  - Scratch that. There doesn't seem to be any relationship with the
    base and PTE address, on at least DG1. Let's instead just grab the
    lmem address from the PTE itself.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Nirmoy Das <nirmoy.das@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-7-matthew.auld@intel.com
2022-03-16 17:50:42 +00:00
CQ Tang
51dc0e1a58 drm/i915/display: Check mappable aperture when pinning preallocated vma
When system does not have mappable aperture, ggtt->mappable_end=0. In
this case if we pass PIN_MAPPABLE when pinning vma, the pinning code
will return -ENOSPC. So conditionally set PIN_MAPPABLE if HAS_GMCH().

Suggested-by: Chris P Wilson <chris.p.wilson@intel.com>
Signed-off-by: CQ Tang <cq.tang@intel.com>
Cc: Radhakrishna Sripada <radhakrishna.sripada@intel.com>
Cc: Ap Kamal <kamal.ap@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-6-matthew.auld@intel.com
2022-03-16 17:50:40 +00:00
Matthew Auld
ecbf206048 drm/i915/ttm: wire up the object offset
For the ttm backend we can use existing placements fpfn and lpfn to
force the allocator to place the object at the requested offset,
potentially evicting stuff if the spot is currently occupied.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-5-matthew.auld@intel.com
2022-03-16 17:50:38 +00:00
Matthew Auld
9b78b5dade drm/i915: add i915_gem_object_create_region_at()
Add a generic interface for allocating an object at some specific
offset, and convert stolen over. Later we will want to hook this up to
different backends.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-4-matthew.auld@intel.com
2022-03-16 17:50:34 +00:00
Matthew Auld
d511d013e2 drm/i915/stolen: consider I915_BO_ALLOC_GPU_ONLY
Keep the behaviour consistent with normal lmem, where we assume CPU
access if by default required.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-3-matthew.auld@intel.com
2022-03-16 17:50:32 +00:00
Akeem G Abodunrin
b8ca8fef58 drm/i915/stolen: don't treat small BAR as an error
On client platforms with reduced LMEM BAR, we should be able to continue
with driver load with reduced io_size. Instead of using the BAR size to
determine the how large stolen should be, we should instead use the
ADDR_RANGE register to figure this out(at least on platforms like DG2).
For simplicity we don't attempt to support partially mappable stolen.

v2: rearrange the io_mapping_init_wc slightly, since the stolen setup
might result in reduced io_size.

Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com>
Co-developed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-2-matthew.auld@intel.com
2022-03-16 17:50:31 +00:00
Matthew Auld
56eda725c9 drm/i915/lmem: don't treat small BAR as an error
Just pass along the probed io_size. The backend should be able to
utilize the entire range here, even if some of it is non-mappable.

It does leave open with what to do with stolen local-memory.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220315181425.576828-1-matthew.auld@intel.com
2022-03-16 17:50:28 +00:00
Jacob Keller
4c1202189e ice: add trace events for tx timestamps
We've previously run into many issues related to the latency of a Tx
timestamp completion with the ice hardware. It can be difficult to
determine the root cause of a slow Tx timestamp. To aid in this,
introduce new trace events which capture timing data about when the
driver reaches certain points while processing a transmit timestamp

 * ice_tx_tstamp_request: Trace when the stack initiates a new timestamp
   request.

 * ice_tx_tstamp_fw_req: Trace when the driver begins a read of the
   timestamp register in the work thread.

 * ice_tx_tstamp_fw_done: Trace when the driver finishes reading a
   timestamp register in the work thread.

 * ice_tx_tstamp_complete: Trace when the driver submits the skb back to
   the stack with a completed Tx timestamp.

These trace events can be enabled using the standard trace event
subsystem exposed by the ice driver. If they are disabled, they become
no-ops with no run time cost.

The following is a simple GNU AWK script which can highlight one
potential way to use the trace events to capture latency data from the
trace buffer about how long the driver takes to process a timestamp:

-----
  BEGIN {
      PREC=256
  }

  # Detect requests
  /tx_tstamp_request/ {
      time=strtonum($4)
      skb=$7

      # Store the time of request for this skb
      requests[skb] = time
      printf("skb %s: idx %d at %.6f\n", skb, idx, time)
  }

  # Detect completions
  /tx_tstamp_complete/ {
      time=strtonum($4)
      skb=$7
      idx=$9

      if (skb in requests) {
          latency = (time - requests[skb]) * 1000
          printf("skb %s: %.3f to complete\n", skb, latency)
          if (latency > 4) {
              printf(">>> HIGH LATENCY <<<\n")
          }
          printf("\n")
      } else {
          printf("!!! skb %s (idx %d) at %.6f\n", skb, idx, time)
      }
  }
-----

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-16 10:38:15 -07:00
Yang Yingliang
2b1d0a242a ice: fix return value check in ice_gnss.c
kthread_create_worker() and tty_alloc_driver() return ERR_PTR()
and never return NULL. The NULL test in the return value check
should be replaced with IS_ERR().

Fixes: 43113ff734 ("ice: add TTY for GNSS module for E810T device")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-16 10:38:15 -07:00
Matthew Wilcox (Oracle)
3a3bae50af fs: Remove aops ->set_page_dirty
With all implementations converted to ->dirty_folio, we can stop calling
this fallback method and remove it entirely.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
2022-03-16 13:37:05 -04:00
Matthew Wilcox (Oracle)
51cdea7ac9 fb_defio: Use noop_dirty_folio()
Remove the custom implementation of set_page_dirty.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
2022-03-16 13:37:05 -04:00
Matthew Wilcox (Oracle)
46de8b9794 fs: Convert __set_page_dirty_no_writeback to noop_dirty_folio
This is a mechanical change.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
2022-03-16 13:37:05 -04:00
Matthew Wilcox (Oracle)
e621900ad2 fs: Convert __set_page_dirty_buffers to block_dirty_folio
Convert all callers; mostly this is just changing the aops to point
at it, but a few implementations need a little more work.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
2022-03-16 13:37:04 -04:00
Matthew Wilcox (Oracle)
af7afdc7bb nilfs: Convert nilfs_set_page_dirty() to nilfs_dirty_folio()
The comment about the page always being locked is wrong, so copy
the locking protection from __set_page_dirty_buffers().  That
means moving the call to nilfs_set_file_dirty() down the
function so as to not acquire a new dependency between the
mapping->private_lock and the ns_inode_lock.  That might be a
harmless dependency to add, but it's not necessary.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Tested-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Tested-by: Mike Marshall <hubcap@omnibond.com> # orangefs
Tested-by: David Howells <dhowells@redhat.com> # afs
2022-03-16 13:36:47 -04:00
Wojciech Drewek
2bcd5b9f35 ice: Fix inconsistent indenting in ice_switch
Fix the following warning as reported by smatch:

smatch warnings:
drivers/net/ethernet/intel/ice/ice_switch.c:5568 ice_find_dummy_packet() warn: inconsistent indenting

Fixes: 9a225f81f5 ("ice: Support GTP-U and GTP-C offload in switchdev")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Wojciech Drewek <wojciech.drewek@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
2022-03-16 10:26:43 -07:00
Thomas Zimmermann
07739597b4 drm/gma500: Move GTT memory-range setup into helper
Move the setup code for GTT/GATT memory ranges into a new helper and
call the function from psb_gtt_init() and psb_gtt_resume(). Removes
code duplication.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308195222.13471-13-tzimmermann@suse.de
2022-03-16 17:42:24 +01:00
Thomas Zimmermann
5169f3592d drm/gma500: Move GTT enable and disable code into helpers
Move the code for enabling and disabling the GTT into helpers and call
the functions in psb_gtt_init(), psb_gtt_fini() and psb_gtt_resume().
Removes code duplication.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308195222.13471-12-tzimmermann@suse.de
2022-03-16 17:42:24 +01:00
Thomas Zimmermann
d339386c9f drm/gma500: Move GEM memory management functions to gem.c
Move GEM functions from gtt.c to gem.c. Adapt some names. No
functional changes.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308195222.13471-11-tzimmermann@suse.de
2022-03-16 17:42:23 +01:00
Thomas Zimmermann
42ceddb696 drm/gma500: Inline psb_gtt_restore()
Inline psb_gtt_restore() into its only caller in power.c.

Perform the GTT restoration in psb_gem_mm_resume(). The restoration
step is part of GEM anyway and will be moved over at some point.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308195222.13471-10-tzimmermann@suse.de
2022-03-16 17:42:22 +01:00
Thomas Zimmermann
d00f44ddfb drm/gma500: Split GTT init/resume/fini into GTT and GEM functions
The GTT init, fini and resume functions contain both, GTT and GEM,
code. Split each into a separate GTT and a GEM function. The GEM
code is responsible for mmap_mutex and the stolen memory area. The
rest of the functionality is left in GTT functions.

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308195222.13471-9-tzimmermann@suse.de
2022-03-16 17:42:21 +01:00