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In one version of the HW there is a remote possibility that it
will miss the doorbell ring. This adds a bit of protection to
be sure we don't stall a queue from a missed doorbell.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Allen Hubbe <allen.hubbe@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Make sure the q+cq alloc for NotifyQ is clearly documented
and don't bother with unnecessary local variables.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Clear the interrupt credits before enabling the queue rather
than after to be sure that the enabled queue starts at 0 and
that we don't wipe away possible credits after enabling the
queue.
Fixes: 0f3154e6bcb3 ("ionic: Add Tx and Rx handling")
Signed-off-by: Neel Patel <neel.patel@amd.com>
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Jerome provided the information that also the GXL internal PHY doesn't
support MMD register access and EEE. MMD reads return 0xffff, what
results in e.g. completely wrong ethtool --show-eee output.
Therefore use the MMD dummy stubs.
Fixes: d853d145ea3e ("net: phy: add an option to disable EEE advertisement")
Suggested-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://lore.kernel.org/r/84432fe4-0be4-bc82-4e5c-557206b40f56@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In zynqmp platforms where firmware supports dynamic SGMII configuration
but has other non-SGMII ethernet devices, it fails them with no packets
received at the RX interface.
To fix this behaviour perform SGMII dynamic configuration only
for the SGMII phy interface.
Fixes: 32cee7818111 ("net: macb: Add zynqmp SGMII dynamic configuration support")
Signed-off-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Reported-by: Michal Simek <michal.simek@amd.com>
Tested-by: Michal Simek <michal.simek@amd.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Link: https://lore.kernel.org/r/1675340779-27499-1-git-send-email-radhey.shyam.pandey@amd.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Since commit ff9fb72bc077 ("debugfs: return error values,
not NULL") changed return value of debugfs_rename() in
error cases from %NULL to %ERR_PTR(-ERROR), we should
also check error values instead of NULL.
Fixes: ff9fb72bc077 ("debugfs: return error values, not NULL")
Signed-off-by: Qi Zheng <zhengqi.arch@bytedance.com>
Acked-by: Jay Vosburgh <jay.vosburgh@canonical.com>
Link: https://lore.kernel.org/r/20230202093256.32458-1-zhengqi.arch@bytedance.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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replace the sprintf with a more generic sysfs_emit function
No intended potential function impact
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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While amd-pstate driver was loaded with specific driver mode, it will
need to check which mode is enabled for the pstate driver,add this sysfs
entry to show the current status
$ cat /sys/devices/system/cpu/amd-pstate/status
active
Meanwhile, user can switch the pstate driver mode with writing mode
string to sysfs entry as below.
Enable passive mode:
$ sudo bash -c "echo passive > /sys/devices/system/cpu/amd-pstate/status"
Enable active mode (EPP driver mode):
$ sudo bash -c "echo active > /sys/devices/system/cpu/amd-pstate/status"
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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add suspend and resume support for the AMD processors by amd_pstate_epp
driver instance.
When the CPPC is suspended, EPP driver will set EPP profile to 'power'
profile and set max/min perf to lowest perf value.
When resume happens, it will restore the MSR registers with
previous cached value.
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <Mario.Limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Adds online and offline driver callback support to allow cpu cores go
offline and help to restore the previous working states when core goes
back online later for EPP driver mode.
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <Mario.Limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add EPP driver support for AMD SoCs which support a dedicated MSR for
CPPC. EPP is used by the DPM controller to configure the frequency that
a core operates at during short periods of activity.
The SoC EPP targets are configured on a scale from 0 to 255 where 0
represents maximum performance and 255 represents maximum efficiency.
The amd-pstate driver exports profile string names to userspace that are
tied to specific EPP values.
The balance_performance string (0x80) provides the best balance for
efficiency versus power on most systems, but users can choose other
strings to meet their needs as well.
$ cat /sys/devices/system/cpu/cpufreq/policy0/energy_performance_available_preferences
default performance balance_performance balance_power power
$ cat /sys/devices/system/cpu/cpufreq/policy0/energy_performance_preference
balance_performance
To enable the driver,it needs to add `amd_pstate=active` to kernel
command line and kernel will load the active mode epp driver
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <Mario.Limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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amd_pstate_param()
The amd-pstate driver may support multiple working modes.
Introduce a variable to keep track of which mode is currently enabled.
Here we use cppc_state var to indicate which mode is enabled.
This change will help to simplify the the amd_pstate_param() to choose
which mode used for the following driver registration.
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <perry.yuan@amd.com>
Signed-off-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Add support for setting and querying EPP preferences to the generic
CPPC driver. This enables downstream drivers such as amd-pstate to discover
and use these values.
Downstream drivers that want to use the new symbols cppc_get_epp_caps
and cppc_set_epp_perf for querying and setting EPP preferences will need
to call cppc_set_epp_perf to enable the EPP function firstly.
Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Pull block fixes from Jens Axboe:
"A bit bigger than I'd like at this point, but mostly a bunch of little
fixes. In detail:
- NVMe pull request via Christoph:
- Fix a missing queue put in nvmet_fc_ls_create_association
(Amit Engel)
- Clear queue pointers on tag_set initialization failure
(Maurizio Lombardi)
- Use workqueue dedicated to authentication (Shin'ichiro
Kawasaki)
- Fix for an overflow in ublk (Liu)
- Fix for leaking a queue reference in block cgroups (Ming)
- Fix for a use-after-free in BFQ (Yu)"
* tag 'block-6.2-2023-02-03' of git://git.kernel.dk/linux:
blk-cgroup: don't update io stat for root cgroup
nvme-auth: use workqueue dedicated to authentication
nvme: clear the request_queue pointers on failure in nvme_alloc_io_tag_set
nvme: clear the request_queue pointers on failure in nvme_alloc_admin_tag_set
nvme-fc: fix a missing queue put in nvmet_fc_ls_create_association
block: Fix the blk_mq_destroy_queue() documentation
block: ublk: extending queue_size to fix overflow
block, bfq: fix uaf for bfqq in bic_set_bfqq()
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amdgpu_sync_get_fence deletes the returned fence from the
syncobj, so the refcount of fence needs to lowered to avoid
a memory leak.
Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2360
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Tested-by: Mikhail Gavrilov <mikhail.v.gavrilov@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Bert Karwatzki <spasswolf@web.de>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/3b590ba0f11d24b8c6c39c3d38250129c1116af4.camel@web.de
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI fixes from Ard Biesheuvel:
- handle potential mremap() failure gracefully
- don't reject EFI memory attributes table version 2
* tag 'efi-fixes-for-v6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: fix potential NULL deref in efi_mem_reserve_persistent
efi: Accept version 2 of memory attributes table
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Pull drm fixes from Dave Airlie:
"A few more fixes this week, a bit more spread out though.
We have a bunch of nouveau regression and stabilisation fixes, along
with usual amdgpu, and i915. Otherwise just some minor misc ones:
dma-fence:
- fix signaling bit for private fences
panel:
- boe-tv101wum-nl6 disable fix
nouveau:
- gm20b acr regression fix
- tu102 scrub status fix
- tu102 wait for firmware fix
i915:
- Fixes for potential use-after-free and double-free
- GuC locking and refcount fixes
- Display's reference clock value fix
amdgpu:
- GC11 fixes
- DCN 3.1.4 fixes
- NBIO 4.3 fix
- DCN 3.2 fixes
- Properly handle additional cases where DCN is not supported
- SMU13 fixes
vc4:
- fix CEC adapter names
ssd130x:
- fix display init regression"
* tag 'drm-fixes-2023-02-03' of git://anongit.freedesktop.org/drm/drm: (23 commits)
drm/amd/display: Properly handle additional cases where DCN is not supported
drm/amdgpu: Enable vclk dclk node for gc11.0.3
drm/amd: Fix initialization for nbio 4.3.0
drm/amdgpu: enable HDP SD for gfx 11.0.3
drm/amd/pm: drop unneeded dpm features disablement for SMU 13.0.4/11
drm/amd/display: Reset DMUB mailbox SW state after HW reset
drm/amd/display: Unassign does_plane_fit_in_mall function from dcn3.2
drm/amd/display: Adjust downscaling limits for dcn314
drm/amd/display: Add missing brackets in calculation
drm/amdgpu: update wave data type to 3 for gfx11
drm/panel: boe-tv101wum-nl6: Ensure DSI writes succeed during disable
drm/nouveau/acr/gm20b: regression fixes
drm/nouveau/fb/tu102-: fix register used to determine scrub status
drm/nouveau/devinit/tu102-: wait for GFW_BOOT_PROGRESS == COMPLETED
drm/i915/adlp: Fix typo for reference clock
drm/i915: Fix potential bit_17 double-free
drm/i915: Fix up locking around dumping requests lists
drm/i915: Fix request ref counting during error capture & debugfs dump
drm/i915/guc: Fix locking when searching for a hung request
drm/i915: Avoid potential vm use-after-free
...
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git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull misc fixes from Andrew Morton:
"25 hotfixes, mainly for MM. 13 are cc:stable"
* tag 'mm-hotfixes-stable-2023-02-02-19-24-2' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (26 commits)
mm: memcg: fix NULL pointer in mem_cgroup_track_foreign_dirty_slowpath()
Kconfig.debug: fix the help description in SCHED_DEBUG
mm/swapfile: add cond_resched() in get_swap_pages()
mm: use stack_depot_early_init for kmemleak
Squashfs: fix handling and sanity checking of xattr_ids count
sh: define RUNTIME_DISCARD_EXIT
highmem: round down the address passed to kunmap_flush_on_unmap()
migrate: hugetlb: check for hugetlb shared PMD in node migration
mm: hugetlb: proc: check for hugetlb shared PMD in /proc/PID/smaps
mm/MADV_COLLAPSE: catch !none !huge !bad pmd lookups
Revert "mm: kmemleak: alloc gray object for reserved region with direct map"
freevxfs: Kconfig: fix spelling
maple_tree: should get pivots boundary by type
.mailmap: update e-mail address for Eugen Hristev
mm, mremap: fix mremap() expanding for vma's with vm_ops->close()
squashfs: harden sanity check in squashfs_read_xattr_id_table
ia64: fix build error due to switch case label appearing next to declaration
mm: multi-gen LRU: fix crash during cgroup migration
Revert "mm: add nodes= arg to memory.reclaim"
zsmalloc: fix a race with deferred_handles storing
...
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Use the bvec_set_page helper to initialize a bvec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-23-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_page helper to initialize bvecs.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sergey Senozhatsky <senozhatsky@chromium.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-11-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_virt helper to initialize the special_vec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-10-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_page helper to initialize the copy up bvec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-9-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_virt helper to initialize the special_vec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-8-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_page helper to initialize bvecs.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-7-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Use the bvec_set_page helper to initialize bvecs.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-6-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Add a helper for setting up the special_bvec instead of open coding it
in three place, and use the new bvec_set_page helper to initialize
special_vec.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20230203150634.3199647-5-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When iterating on a linked list, a result of memremap is dereferenced
without checking it for NULL.
This patch adds a check that falls back on allocating a new page in
case memremap doesn't succeed.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes: 18df7577adae ("efi/memreserve: deal with memreserve entries in unmapped memory")
Signed-off-by: Anton Gusev <aagusev@ispras.ru>
[ardb: return -ENOMEM instead of breaking out of the loop]
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
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Make the intel_quark_dts_thermal driver register an array of generic
trip points along with the thermal zone and drop the trip points
thermal zone callbacks that are not used any more from it.
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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There are two idle injection implementation in the Linux kernel. One
via intel_powerclamp and the other using powercap/idle_inject. Both
implementation end up in calling play_idle* function from a FIFO
priority thread. Both can't be used at the same time.
It is better to use one idle injection framework for better
maintainability. In this way, there is only one caller for play_idle.
Here powercap/idle_inject can be used for both per-core and for system
wide idle injection. This framework has a well defined interface which
allow registry for per-core or for all CPUs (system wide).
This reduces code complexity in the intel powerclamp driver as all the
per CPU kthreads, delayed work and calls to play_idle can be removed.
The changes include:
- Remove unneeded include files
- Remove per CPU kthread workers: balancing_work and idle_injection_work.
- Reuse the compensation related code by moving from previous worker
thread to idle_injection callback.
- Adjust the idle_duration and runtime by using powercap/idle_inject
interface.
- Remove all variables, which are not required once powercap/idle_inject
is used.
- Add mutex to avoid race during removal of idle injection during module
unload and user action to change idle inject percent. Also for
protection during dynamic adjustment of run and idle time from
update() callback.
- Remove online/offline callbacks to designate control CPU
- Use cpu_present_mask global variable for CPU mask
- Remove hot plug locks
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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After calling fwnode_phy_find_device(), the phy device refcount is
incremented. Then, when the phy device is attached to a netdev with
phy_attach_direct(), the refcount is also incremented but only
decremented in the caller if phy_attach_direct() fails. Move
phy_device_free() before the "if" to always release it correctly.
Indeed, either phy_attach_direct() failed and we don't want to keep a
reference to the phydev or it succeeded and a reference has been taken
internally.
Fixes: 25396f680dd6 ("net: phylink: introduce phylink_fwnode_phy_connect()")
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When calling debugfs_lookup() the result must have dput() called on it,
otherwise the memory will leak over time. To make things simpler, just
call debugfs_lookup_and_remove() instead which handles all of the logic
at once.
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Fixes: d180e0a1be6c ("Drivers: hv: Create debugfs file with hyper-v balloon usage information")
Cc: stable <stable@kernel.org>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20230202140918.2289522-1-gregkh@linuxfoundation.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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https://gitlab.freedesktop.org/agd5f/linux into drm-fixes
amd-drm-fixes-6.2-2023-02-01:
amdgpu:
- GC11 fixes
- DCN 3.1.4 fixes
- NBIO 4.3 fix
- DCN 3.2 fixes
- Properly handle additional cases where DCN is not supported
- SMU13 fixes
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230202042309.24144-1-alexander.deucher@amd.com
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fixes for potential use-after-free and double-free (Rob)
- GuC locking and refcount fixes (John)
- Display's reference clock value fix (Chaitanya)
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/Y9u5pHjOYcxzS5Z7@intel.com
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git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
A fix for a non-unique CEC adapter name registration in vc4, a
regression breaking the display in ssd130x, a signaling bit issue in
dma-fence, a couple of fixes in nouveau for Turing and Ampere, and a
disable fix for the boe-tv101wum-nl6 panel.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20230202085724.pz22m7bmei3wyuzp@houat
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git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata
Pull libata fix from Damien Le Moal:
"Fix device probe issues with some combination of adapters & devices
that do not report a current link speed, leading to device probe
failures if a link speed was not previously reported and saved (me)"
* tag 'ata-6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata:
ata: libata: Fix sata_down_spd_limit() when no link speed is reported
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in selecting it. Therefore, remove the "select SRCU"
Kconfig statements.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Lorenzo Pieralisi <lpieralisi@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: "Krzysztof Wilczyński" <kw@linux.com>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: <linux-pci@vger.kernel.org>
Acked-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in selecting it. Therefore, remove the "select SRCU"
Kconfig statements.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: <netdev@vger.kernel.org>
Acked-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in selecting it. Therefore, remove the "select SRCU"
Kconfig statements.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Song Liu <song@kernel.org>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
Cc: <dm-devel@redhat.com>
Cc: <linux-raid@vger.kernel.org>
Acked-by: Mike Snitzer <snitzer@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in selecting it. Therefore, remove the "select SRCU"
Kconfig statements.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Maxime Coquelin <mcoquelin.stm32@gmail.com>
Cc: Alexandre Torgue <alexandre.torgue@foss.st.com>
Cc: <linux-stm32@st-md-mailman.stormreply.com>
Cc: <linux-arm-kernel@lists.infradead.org>
Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in selecting it. Therefore, remove the "select SRCU"
Kconfig statements.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Dan Williams <dan.j.williams@intel.com>
Cc: Vishal Verma <vishal.l.verma@intel.com>
Cc: Dave Jiang <dave.jiang@intel.com>
Cc: <nvdimm@lists.linux.dev>
Acked-by: Dan Williams <dan.j.williams@intel.com>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Now that the SRCU Kconfig option is unconditionally selected, there is
no longer any point in conditional compilation based on CONFIG_SRCU.
Therefore, remove the #ifdef and throw away the #else clause.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Rafael J. Wysocki" <rafael@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Rafael J. Wysocki <rafael@kernel.org>
Reviewed-by: John Ogness <john.ogness@linutronix.de>
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Commit 7a8b64d17e35 ("of/address: use range parser for of_dma_get_range")
converted the parsing of dma-range properties to use code shared with the
PCI range parser. The intent was to introduce no functional changes however
in the case where we fail to translate the first resource instead of
returning -EINVAL the new code we return 0. Restore the previous behaviour
by returning an error if we find no valid ranges, the original code only
handled the first range but subsequently support for parsing all supplied
ranges was added.
This avoids confusing code using the parsed ranges which doesn't expect to
successfully parse ranges but have only a list terminator returned, this
fixes breakage with so far as I can tell all DMA for on SoC devices on the
Socionext Synquacer platform which has a firmware supplied DT. A bisect
identified the original conversion as triggering the issues there.
Fixes: 7a8b64d17e35 ("of/address: use range parser for of_dma_get_range")
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: Luca Di Stefano <luca.distefano@linaro.org>
Cc: 993612@bugs.debian.org
Cc: stable@kernel.org
Link: https://lore.kernel.org/r/20230126-synquacer-boot-v2-1-cb80fd23c4e2@kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
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Since Linux 5.19 this error is observed:
sysfs: cannot create duplicate filename '/devices/platform/of-display'
This is because multiple devices with the same name 'of-display' are
created on the same bus. Update the code to create numbered device names
for the displays.
Also, fix a node refcounting issue when exiting the boot display loop.
cc: linuxppc-dev@lists.ozlabs.org
References: https://bugzilla.kernel.org/show_bug.cgi?id=216095
Fixes: 52b1b46c39ae ("of: Create platform devices for OF framebuffers")
Reported-by: Erhard F. <erhard_f@mailbox.org>
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Link: https://lore.kernel.org/r/20230201162247.3575506-1-robh@kernel.org
[robh: Rework to avoid node refcount leaks]
Signed-off-by: Rob Herring <robh@kernel.org>
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On systems with two or fewer sockets, when the boot CPU has CONSTANT_TSC,
NONSTOP_TSC, and TSC_ADJUST, clocksource watchdog verification of the
TSC is disabled. This works well much of the time, but there is the
occasional production-level system that meets all of these criteria, but
which still has a TSC that skews significantly from atomic-clock time.
This is usually attributed to a firmware or hardware fault. Yes, the
various NTP daemons do express their opinions of userspace-to-atomic-clock
time skew, but they put them in various places, depending on the daemon
and distro in question. It would therefore be good for the kernel to
have some clue that there is a problem.
The old behavior of marking the TSC unstable is a non-starter because a
great many workloads simply cannot tolerate the overheads and latencies
of the various non-TSC clocksources. In addition, NTP-corrected systems
sometimes can tolerate significant kernel-space time skew as long as
the userspace time sources are within epsilon of atomic-clock time.
Therefore, when watchdog verification of TSC is disabled, enable it for
HPET and PMTMR (AKA ACPI PM timer). This provides the needed in-kernel
time-skew diagnostic without degrading the system's performance.
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Waiman Long <longman@redhat.com>
Cc: <x86@kernel.org>
Tested-by: Feng Tang <feng.tang@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
"Including fixes from bpf, can and netfilter.
Current release - regressions:
- phy: fix null-deref in phy_attach_direct
- mac802154: fix possible double free upon parsing error
Previous releases - regressions:
- bpf: preserve reg parent/live fields when copying range info,
prevent mis-verification of programs as safe
- ip6: fix GRE tunnels not generating IPv6 link local addresses
- phy: dp83822: fix null-deref on DP83825/DP83826 devices
- sctp: do not check hb_timer.expires when resetting hb_timer
- eth: mtk_sock: fix SGMII configuration after phylink conversion
Previous releases - always broken:
- eth: xdp: execute xdp_do_flush() before napi_complete_done()
- skb: do not mix page pool and page referenced frags in GRO
- bpf:
- fix a possible task gone issue with bpf_send_signal[_thread]()
- fix an off-by-one bug in bpf_mem_cache_idx() to select the right
cache
- add missing btf_put to register_btf_id_dtor_kfuncs
- sockmap: fon't let sock_map_{close,destroy,unhash} call itself
- gso: fix null-deref in skb_segment_list()
- mctp: purge receive queues on sk destruction
- fix UaF caused by accept on already connected socket in exotic
socket families
- tls: don't treat list head as an entry in tls_is_tx_ready()
- netfilter: br_netfilter: disable sabotage_in hook after first
suppression
- wwan: t7xx: fix runtime PM implementation
Misc:
- MAINTAINERS: spring cleanup of networking maintainers"
* tag 'net-6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (65 commits)
mtk_sgmii: enable PCS polling to allow SFP work
net: mediatek: sgmii: fix duplex configuration
net: mediatek: sgmii: ensure the SGMII PHY is powered down on configuration
MAINTAINERS: update SCTP maintainers
MAINTAINERS: ipv6: retire Hideaki Yoshifuji
mailmap: add John Crispin's entry
MAINTAINERS: bonding: move Veaceslav Falico to CREDITS
net: openvswitch: fix flow memory leak in ovs_flow_cmd_new
net: ethernet: mtk_eth_soc: disable hardware DSA untagging for second MAC
virtio-net: Keep stop() to follow mirror sequence of open()
selftests: net: udpgso_bench_tx: Cater for pending datagrams zerocopy benchmarking
selftests: net: udpgso_bench: Fix racing bug between the rx/tx programs
selftests: net: udpgso_bench_rx/tx: Stop when wrong CLI args are provided
selftests: net: udpgso_bench_rx: Fix 'used uninitialized' compiler warning
can: mcp251xfd: mcp251xfd_ring_set_ringparam(): assign missing tx_obj_num_coalesce_irq
can: isotp: split tx timer into transmission and timeout
can: isotp: handle wait_event_interruptible() return values
can: raw: fix CAN FD frame transmissions over CAN XL devices
can: j1939: fix errant WARN_ON_ONCE in j1939_session_deactivate
hv_netvsc: Fix missed pagebuf entries in netvsc_dma_map/unmap()
...
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"The majority of bugfixes is once more for the NXP i.MX platform,
addressing issue with i.MX8M (UART, watchdog and ethernet) as well as
imx8dxl power button and the USB modem on an imx7 board.
The reason that i.MX always shows up here is obviously not that they
are more buggy than the others, but they have the most boards and are
good about getting fixes in quickly.
The other DT fixes are for the Nuvoton wpcm450 flash controller and
the i2c mux on an ASpeed board.
Lastly, there are updates to the MAINTAINERS entries for Mediatek,
AMD/Seattle and NXP SoCs, as well as a lone code fix for error
handling in the allwinner 'rsb' bus driver"
* tag 'soc-fixes-6.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
ARM: dts: wpcm450: Add nuvoton,shm = <&shm> to FIU node
MAINTAINERS: Update entry for MediaTek SoC support
MAINTAINERS: amd: drop inactive Brijesh Singh
ARM: dts: imx7d-smegw01: Fix USB host over-current polarity
arm64: dts: imx8mm-verdin: Do not power down eth-phy
MAINTAINERS: match freescale ARM64 DT directory in i.MX entry
arm64: dts: imx8mm: Fix pad control for UART1_DTE_RX
ARM: dts: aspeed: Fix pca9849 compatible
arm64: dts: freescale: imx8dxl: fix sc_pwrkey's property name linux,keycode
arm64: dts: imx8m-venice: Remove incorrect 'uart-has-rtscts'
arm64: dts: imx8mm: Reinstate GPIO watchdog always-running property on eDM SBC
bus: sunxi-rsb: Fix error handling in sunxi_rsb_init()
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull s390 fixes from Heiko Carstens:
- With CONFIG_VMAP_STACK enabled it is not possible to load the s390
specific diag288_wdt watchdog module. The reason is that a pointer to
a string is passed to an inline assembly; this string however is
located on the stack, while the instruction within the inline
assembly expects a physicial address. Fix this by copying the string
to a kmalloc'ed buffer.
- The diag288_wdt watchdog module does not indicate that it accesses
memory from an inline assembly, which it does. Add "memory" to the
clobber list to prevent the compiler from optimizing code incorrectly
away.
- Pass size of the uncompressed kernel image to __decompress() call.
Otherwise the kernel image decompressor may corrupt/overwrite an
initrd. This was reported to happen on s390 after commit 2aa14b1ab2c4
("zstd: import usptream v1.5.2").
* tag 's390-6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/decompressor: specify __decompress() buf len to avoid overflow
watchdog: diag288_wdt: fix __diag288() inline assembly
watchdog: diag288_wdt: do not use stack buffers for hardware data
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver fixes from Hans de Goede:
"A set of AMD PMF fixes + a few other small fixes"
* tag 'platform-drivers-x86-v6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
platform/x86: touchscreen_dmi: Add Chuwi Vi8 (CWI501) DMI match
platform/x86: thinkpad_acpi: Fix thinklight LED brightness returning 255
platform/x86/amd: pmc: add CONFIG_SERIO dependency
platform/x86/amd/pmf: Ensure mutexes are initialized before use
platform/x86/amd/pmf: Fix to update SPS thermals when power supply change
platform/x86/amd/pmf: Fix to update SPS default pprof thermals
platform/x86/amd/pmf: update to auto-mode limits only after AMT event
platform/x86/amd/pmf: Add helper routine to check pprof is balanced
platform/x86/amd/pmf: Add helper routine to update SPS thermals
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The powercap/idle_inject core uses play_idle_precise() to inject idle
time. But play_idle_precise() can't ensure that the CPU is fully idle
for the specified duration because of wakeups due to interrupts. To
compensate for the reduced idle time due to these wakes, the caller
can adjust requested idle time for the next cycle.
The goal of idle injection is to keep system at some idle percent on
average, so this is fine to overshoot or undershoot instantaneous idle
times.
The idle inject core provides an interface idle_inject_set_duration()
to set idle and runtime duration.
Some architectures provide interface to get actual idle time observed
by the hardware. So, the effective idle percent can be adjusted using
the hardware feedback. For example, Intel CPUs provides package idle
counters, which is currently used by Intel powerclamp driver to
readjust runtime duration.
When the caller's desired idle time over a period is less or greater
than the actual CPU idle time observed by the hardware, caller can
readjust idle and runtime duration for the next cycle.
The only way this can be done currently is by monitoring hardware idle
time from a different software thread and readjust idle and runtime
duration using idle_inject_set_duration().
This can be avoided by adding a callback which callers can register and
readjust from this callback function.
Add a capability to register an optional update() callback, which can be
called from the idle inject core before waking up CPUs for idle injection.
This callback can be registered via a new interface:
idle_inject_register_full().
During this process of constantly adjusting idle and runtime duration
there can be some cases where actual idle time is more than the desired.
In this case idle inject can be skipped for a cycle. If update() callback
returns false, then the idle inject core skips waking up CPUs for the
idle injection.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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Export symbols for external interfaces, so that they can be used in
other loadable modules.
Export is done under name space IDLE_INJECT.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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