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git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull hardening updates from Kees Cook:
- Introduce the param_unknown_fn type and other clean ups (Andy
Shevchenko)
- Various __counted_by annotations (Christophe JAILLET, Gustavo A. R.
Silva, Kees Cook)
- Add KFENCE test to LKDTM (Stephen Boyd)
- Various strncpy() refactorings (Justin Stitt)
- Fix qnx4 to avoid writing into the smaller of two overlapping buffers
- Various strlcpy() refactorings
* tag 'hardening-v6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
qnx4: Use get_directory_fname() in qnx4_match()
qnx4: Extract dir entry filename processing into helper
atags_proc: Add __counted_by for struct buffer and use struct_size()
tracing/uprobe: Replace strlcpy() with strscpy()
params: Fix multi-line comment style
params: Sort headers
params: Use size_add() for kmalloc()
params: Do not go over the limit when getting the string length
params: Introduce the param_unknown_fn type
lkdtm: Add kfence read after free crash type
nvme-fc: replace deprecated strncpy with strscpy
nvdimm/btt: replace deprecated strncpy with strscpy
nvme-fabrics: replace deprecated strncpy with strscpy
drm/modes: replace deprecated strncpy with strscpy_pad
afs: Add __counted_by for struct afs_acl and use struct_size()
VMCI: Annotate struct vmci_handle_arr with __counted_by
i40e: Annotate struct i40e_qvlist_info with __counted_by
HID: uhid: replace deprecated strncpy with strscpy
samples: Replace strlcpy() with strscpy()
SUNRPC: Replace strlcpy() with strscpy()
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During resets, if queues are unquiesced first, then the host can submit
IOs to the controller using shadow doorbell logic but the controller
won't be aware. This can lead to necessary MMIO doorbells from being
not issued, causing requests to be delayed and timed-out.
Signed-off-by: William Butler <[email protected]>
Signed-off-by: Keith Busch <[email protected]>
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Track allocated mrs in a list and show warning when leaks are detected
on device free or reset.
Reviewed-by: Gal Pressman <[email protected]>
Acked-by: Eugenio Pérez <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Deleting the old mr during mr update (.set_map) and then modifying the
vqs with the new mr is not a good flow for firmware. The firmware
expects that mkeys are deleted after there are no more vqs referencing
them.
Introduce reference counting for mrs to fix this. It is the only way to
make sure that mkeys are not in use by vqs.
An mr reference is taken when the mr is associated to the mr asid table
and when the mr is linked to the vq on create/modify. The reference is
released when the mkey is unlinked from the vq (trough modify/destroy)
and from the mr asid table.
To make things consistent, get rid of mlx5_vdpa_destroy_mr and use
get/put semantics everywhere.
Reviewed-by: Gal Pressman <[email protected]>
Acked-by: Eugenio Pérez <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Instead of tearing down and setting up vq resources, use vq
suspend/resume during .set_map to speed things up a bit.
The vq mr is updated with the new mapping while the vqs are suspended.
If the device doesn't support resumable vqs, do the old teardown and
setup dance.
Reviewed-by: Gal Pressman <[email protected]>
Acked-by: Eugenio Pérez <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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.set_vq_state will set the indices and mark the fields to be modified in
the hw vq.
Advertise that the device supports changing the vq state when the device
is in DRIVER_OK state and suspended.
Reviewed-by: Gal Pressman <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Acked-by: Jason Wang <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Addresses get set by .set_vq_address. hw vq addresses will be updated on
next modify_virtqueue.
Reviewed-by: Gal Pressman <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Implement vdpa vq and device resume if capability detected. Add support
for suspend -> ready state change.
Reviewed-by: Gal Pressman <[email protected]>
Acked-by: Eugenio Pérez <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Add a bitmask variable that tracks hw vq field changes that
are supposed to be modified on next hw vq change command.
This will be useful to set multiple vq fields when resuming the vq.
Reviewed-by: Gal Pressman <[email protected]>
Acked-by: Eugenio Pérez <[email protected]>
Acked-by: Jason Wang <[email protected]>
Signed-off-by: Dragos Tatulea <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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The virtio standard doesn't allow for virtqueue address and state
changes when the device is in DRIVER_OK. Return an error in such cases
unless the device is suspended.
The suspended device exception is needed because some devices support
virtqueue changes when the device is suspended.
Signed-off-by: Dragos Tatulea <[email protected]>
Suggested-by: Eugenio Pérez <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Set vdpa device suspended state on successful suspend. Clear it on
successful resume and reset.
The state will be locked by the vhost_vdpa mutex. The mutex is taken
during suspend, resume and reset in vhost_vdpa_unlocked_ioctl. The
exception is vhost_vdpa_open which does a device reset but that should
be safe because it can only happen before the other ops.
Signed-off-by: Dragos Tatulea <[email protected]>
Suggested-by: Eugenio Pérez <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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This adds polling support to virtio-scsi. It's based on and works similar
to virtblk support where we add a module param to specify the number of
poll queues then subtract to calculate the IO queues.
When using 8 poll queues and a vhost worker per queue we see 4K IOPs
with fio:
fio --filename=/dev/sda --direct=1 --rw=randread --bs=4k \
--ioengine=io_uring --hipri --iodepth=128 --numjobs=$NUM_JOBS
increase like:
jobs base poll
1 207K 296K
2 392K 552K
3 581K 860K
4 765K 1235K
5 936K 1598K
6 1104K 1880K
7 1253K 2095K
8 1311k 2187K
Signed-off-by: Mike Christie <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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This patch adds the support for feature VIRTIO_PMEM_F_SHMEM_REGION
(virtio spec v1.2 section 5.19.5.2 [1]).
During feature negotiation, if VIRTIO_PMEM_F_SHMEM_REGION is offered
by the device, the driver looks for a shared memory region of id 0.
If it is found, this feature is understood. Otherwise, this feature
bit is cleared.
During probe, if VIRTIO_PMEM_F_SHMEM_REGION has been negotiated,
virtio pmem ignores the `start` and `size` fields in device config
and uses the physical address range of shared memory region 0.
[1] https://docs.oasis-open.org/virtio/virtio/v1.2/csd01/virtio-v1.2-csd01.html#x1-6480002
Signed-off-by: Changyuan Lyu <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Acked-by: Jason Wang <[email protected]>
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A virtio_balloon's parent device may be configured so that a
configuration change interrupt is a wakeup event. Extend the processing
of such a wakeup event until the balloon finishes inflating or deflating
by calling pm_stay_awake/pm_relax in the virtio_balloon driver. Note
that these calls are no-ops if the parent device doesn't support wakeup
events or if the wakeup events are not enabled.
This change allows the guest to use system power states such as s2idle
without running the risk the virtio_balloon's cooperative memory
management becoming unresponsive to the host's requests.
Tested-by: Theodore Ts'o <[email protected]>
Signed-off-by: David Stevens <[email protected]>
Signed-off-by: Theodore Ts'o <[email protected]>
Message-Id: <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
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Pull xfs updates from Chandan Babu:
"New features/functionality:
- Online repair:
- Reserve disk space for online repairs
- Fix misinteraction between the AIL and btree bulkloader because
of which the bulk load fails to queue a buffer for writeback if
it happens to be on the AIL list
- Prevent transaction reservation overflows when reaping blocks
during online repair
- Whenever possible, bulkloader now copies multiple records into
a block
- Support repairing of
1. Per-AG free space, inode and refcount btrees
2. Ondisk inodes
3. File data and attribute fork mappings
- Verify the contents of
1. Inode and data fork of realtime bitmap file
2. Quota files
- Introduce MF_MEM_PRE_REMOVE. This will be used to notify tasks
about a pmem device being removed
Bug fixes:
- Fix memory leak of recovered attri intent items
- Fix UAF during log intent recovery
- Fix realtime geometry integer overflows
- Prevent scrub from live locking in xchk_iget
- Prevent fs shutdown when removing files during low free disk space
- Prevent transaction reservation overflow when extending an RT
device
- Prevent incorrect warning from being printed when extending a
filesystem
- Fix an off-by-one error in xreap_agextent_binval
- Serialize access to perag radix tree during deletion operation
- Fix perag memory leak during growfs
- Allow allocation of minlen realtime extent when the maximum sized
realtime free extent is minlen in size
Cleanups:
- Remove duplicate boilerplate code spread across functionality
associated with different log items
- Cleanup resblks interfaces
- Pass defer ops pointer to defer helpers instead of an enum
- Initialize di_crc in xfs_log_dinode to prevent KMSAN warnings
- Use static_assert() instead of BUILD_BUG_ON_MSG() to validate size
of structures and structure member offsets. This is done in order
to be able to share the code with userspace
- Move XFS documentation under a new directory specific to XFS
- Do not invoke deferred ops' ->create_done callback if the deferred
operation does not have an intent item associated with it
- Remove duplicate inclusion of header files from scrub/health.c
- Refactor Realtime code
- Cleanup attr code"
* tag 'xfs-6.8-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (123 commits)
xfs: use the op name in trace_xlog_intent_recovery_failed
xfs: fix a use after free in xfs_defer_finish_recovery
xfs: turn the XFS_DA_OP_REPLACE checks in xfs_attr_shortform_addname into asserts
xfs: remove xfs_attr_sf_hdr_t
xfs: remove struct xfs_attr_shortform
xfs: use xfs_attr_sf_findname in xfs_attr_shortform_getvalue
xfs: remove xfs_attr_shortform_lookup
xfs: simplify xfs_attr_sf_findname
xfs: move the xfs_attr_sf_lookup tracepoint
xfs: return if_data from xfs_idata_realloc
xfs: make if_data a void pointer
xfs: fold xfs_rtallocate_extent into xfs_bmap_rtalloc
xfs: simplify and optimize the RT allocation fallback cascade
xfs: reorder the minlen and prod calculations in xfs_bmap_rtalloc
xfs: remove XFS_RTMIN/XFS_RTMAX
xfs: remove rt-wrappers from xfs_format.h
xfs: factor out a xfs_rtalloc_sumlevel helper
xfs: tidy up xfs_rtallocate_extent_exact
xfs: merge the calls to xfs_rtallocate_range in xfs_rtallocate_block
xfs: reflow the tail end of xfs_rtallocate_extent_block
...
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RISC-V SBI specification supports advanced debug console
support via SBI DBCN extension.
Extend the HVC SBI driver to support it.
Signed-off-by: Atish Patra <[email protected]>
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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We extend the existing RISC-V SBI earlycon support to use the new
RISC-V SBI debug console extension.
Signed-off-by: Anup Patel <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Acked-by: Greg Kroah-Hartman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Palmer Dabbelt <[email protected]>
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On some Meteor Lake platforms, maximum one core turbo frequency is not
observed. During hybrid performance to frequency conversion, the maximum
frequency is 100 MHz less. This results in requesting maximum frequency
100 MHz less.
For example when the max one core turbo is 4.9 GHz:
MSR HWP_CAPABILITIES shows highest performance ratio for P-core is 0x3E.
With the current scaling factor of 78741 (1.27x for converting frequency
to performance) results in max frequency of 4.8 GHz. This results in
capping the max scaling frequency as 4.8 GHz, which is 100 MHz less than
the desired.
Add capability to define per CPU model specific scaling factor and define
scaling factor of 80000 (1.25x for converting frequency to performance for
P-cores) for Meteor Lake.
Signed-off-by: Srinivas Pandruvada <[email protected]>
[ rjw: Debug message adjustment, subject edit ]
Signed-off-by: Rafael J. Wysocki <[email protected]>
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The ti_am335x_tscadc is specific to some TI SoCs, update
the dependencies for those SoCs and compile testing.
Signed-off-by: Peter Robinson <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>
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The sysctrl driver was looking for an instance of the PM2301
charger but this has been deleted from the kernel and is not
used with the U8500 systems any more. Drop the string.
Signed-off-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Lee Jones <[email protected]>
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Document nested struct members with full names as described in
Documentation/doc-guide/kernel-doc.rst.
i915_perf_types.h:341: warning: Excess struct member 'ptr_lock' description in 'i915_perf_stream'
i915_perf_types.h:341: warning: Excess struct member 'head' description in 'i915_perf_stream'
i915_perf_types.h:341: warning: Excess struct member 'tail' description in 'i915_perf_stream'
3 warnings as Errors
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Reviewed-by: Rodrigo Vivi <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit aa253baca534357e033bd29b074ce1eade2a9362)
Signed-off-by: Joonas Lahtinen <[email protected]>
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Document nested struct members with full names as described in
Documentation/doc-guide/kernel-doc.rst.
intel_guc.h:305: warning: Excess struct member 'lock' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'guc_ids' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'num_guc_ids' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'guc_ids_bitmap' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'guc_id_list' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'guc_ids_in_use' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'destroyed_contexts' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'destroyed_worker' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'reset_fail_worker' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'reset_fail_mask' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'sched_disable_delay_ms' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'sched_disable_gucid_threshold' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'lock' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'gt_stamp' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'ping_delay' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'work' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'shift' description in 'intel_guc'
intel_guc.h:305: warning: Excess struct member 'last_stat_jiffies' description in 'intel_guc'
18 warnings as Errors
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Reviewed-by: Rodrigo Vivi <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit e4cf1a70fad3e2107503e99cfe9cc0c9cba19dad)
Signed-off-by: Joonas Lahtinen <[email protected]>
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Document nested struct members with full names as described in
Documentation/doc-guide/kernel-doc.rst.
intel_gsc.h:34: warning: Excess struct member 'gem_obj' description in 'intel_gsc'
Also add missing field member descriptions.
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Reviewed-by: Rodrigo Vivi <[email protected]>
Cc: Andi Shyti <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit cd1d91115ff1929ec346d85f512ef260ddf8131e)
Signed-off-by: Joonas Lahtinen <[email protected]>
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Document nested struct members with full names as described in
Documentation/doc-guide/kernel-doc.rst.
i915_gem_context_types.h:420: warning: Excess struct member 'lock' description in 'i915_gem_context'
Signed-off-by: Randy Dunlap <[email protected]>
Cc: Jani Nikula <[email protected]>
Cc: Joonas Lahtinen <[email protected]>
Cc: Rodrigo Vivi <[email protected]>
Cc: Tvrtko Ursulin <[email protected]>
Cc: [email protected]
Cc: Jonathan Corbet <[email protected]>
Cc: [email protected]
Reviewed-by: Rodrigo Vivi <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Signed-off-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 7353c3d7c15017140a8b984e41f94be0bf535e73)
Signed-off-by: Joonas Lahtinen <[email protected]>
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layout of configuration ROM
As the last part of support for legacy layout of configuration ROM, this
commit traverses vendor directory as well as root directory when
constructing modalias for unit device. The change brings loss of backward
compatibility since it can fill model field ('mo') which is 0 at current
implementation in the case. However, we can be optimistic against
regression for unit drivers in kernel, due to some points:
1. ALSA drivers for audio and music units use the model fields to match
device, however all of supported devices does not have such legacy
layout.
2. the other unit drivers (e.g. sbp2) does not use the model field to
match device.
The rest of concern is user space application. The most of applications
just take care of node device and does not use the modalias of unit
device, thus the change does not affect to them. But systemd project is
known to get affects from the change since it includes hwdb to take udev
to configure fw character device conveniently. I have a plan to work for
systemd so that the access permission of character device could be kept
across the change.
Suggested-by: Adam Goldman <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Sakamoto <[email protected]>
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Use correct helper for getting max DSC bpc supported by the source.
Fixes: 1c56e9a39833 ("drm/i915/dp: Get optimal link config to have best compressed bpp")
Cc: Ankit Nautiyal <[email protected]>
Cc: Stanislav Lisovskiy <[email protected]>
Cc: Jani Nikula <[email protected]>
Signed-off-by: Ankit Nautiyal <[email protected]>
Reviewed-by: Swati Sharma <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit cd7b0b2dd3d9fecc6057c07b40e8087db2f9f71a)
Signed-off-by: Joonas Lahtinen <[email protected]>
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intel_wakeref_t is supposed to be a mostly opaque cookie to its
users. It should only be checked for being non-zero and set to
zero. Debug logging its actual value is meaningless. Switch to just
debug logging whether the async_put_wakeref is non-zero.
The issue dates back to much earlier than
commit b49e894c3fd8 ("drm/i915: Replace custom intel runtime_pm tracker
with ref_tracker library"), but this is the one that brought about a
build failure due to the printf format.
Reported-by: Stephen Rothwell <[email protected]>
Closes: https://lore.kernel.org/r/[email protected]
Fixes: b49e894c3fd8 ("drm/i915: Replace custom intel runtime_pm tracker with ref_tracker library")
Cc: Andrzej Hajda <[email protected]>
Cc: Imre Deak <[email protected]>
Signed-off-by: Jani Nikula <[email protected]>
Reviewed-by: Imre Deak <[email protected]>
Reviewed-by: Andrzej Hajda <[email protected]>
Reviewed-by: Andi Shyti <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit de06b42edc5bf05aefbb7e2f59475d6022ed57e1)
Signed-off-by: Joonas Lahtinen <[email protected]>
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MST connectors don't have a static attached encoder, as their encoder
can change depending on the pipe they use; so the encoder for an MST
connector can't be retrieved using intel_dp_attached_encoder() (which
may return NULL for MST). Most of the PSR debugfs entries depend on a
static connector -> encoder mapping which is only true for eDP and SST
DP connectors and not for MST. These debugfs entries were enabled for
MST connectors as well recently to provide PR information for them, but
handling MST connectors needs more changes.
Fix this by not adding for now the PSR entries on MST connectors. To
make things more uniform add the entries for SST connectors on all
platforms, not just on platforms supporting DP2.0.
v2:
- Keep adding the entries for SST connectors. (Jouni)
- Add a TODO: comment for MST support.
Fixes: ef75c25e8fed ("drm/i915/panelreplay: Debugfs support for panel replay")
Closes: https://gitlab.freedesktop.org/drm/intel/-/issues/9850
Cc: Animesh Manna <[email protected]>
Cc: Jouni Högander <[email protected]>
Reviewed-by: Jouni Högander <[email protected]>
Signed-off-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit 9b0b61c5bc08e1aa55a0c1e7cda28f952b2d02cc)
Signed-off-by: Joonas Lahtinen <[email protected]>
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Add pll selection check for C20 as well as
clock state verification0. We have been relying
on sw state to select A or B pll's. This is incorrect
as the hw might see this selection differently. This
patch fixes this shortcoming by reading pll selection
for both sw and hw states and compares if these two
selections match.
Fixes: 59be90248b42 ("drm/i915/mtl: C20 state verification")
v2: reword commit message and include fix to a
original commit (Imre)
Compare pll selection (Jani)
Signed-off-by: Mika Kahola <[email protected]>
Reviewed-by: Imre Deak <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
(cherry picked from commit f4304beadd88d074333b23fdc7f35d00ee763e14)
Signed-off-by: Joonas Lahtinen <[email protected]>
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Adds a driver for a mini gamepad that communicates over i2c, the gamepad
has bidirectional thumb stick input and six buttons.
The gamepad chip utilizes the open framework from Adafruit called 'Seesaw'
to transmit the ADC data for the joystick and digital pin state for the
buttons. I have only implemented the functionality required to receive the
thumb stick and button state.
Steps in reading the gamepad state over i2c:
1. Reset the registers
2. Set the pin mode of the pins specified by the `BUTTON_MASK` to input
`BUTTON_MASK`: A bit-map for the six digital pins internally
connected to the joystick buttons.
3. Enable internal pullup resistors for the `BUTTON_MASK`
4. Bulk set the pin state HIGH for `BUTTON_MASK`
5. Poll the device for button and joystick state done by:
`seesaw_read_data(struct i2c_client *client, struct seesaw_data *data)`
Product page:
https://www.adafruit.com/product/5743
Arduino driver:
https://github.com/adafruit/Adafruit_Seesaw
Driver tested on RPi Zero 2W
Reviewed-by: Thomas Weißschuh <[email protected]>
Signed-off-by: Anshul Dalal <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Dmitry Torokhov <[email protected]>
|
|
DO NOT access the underlying struct page of an sg table exported
by DMA-buf in dmabuf_imp_to_refs(), this is not allowed.
Please see drivers/dma-buf/dma-buf.c:mangle_sg_table() for details.
Fortunately, here (for special Xen device) we can avoid using
pages and calculate gfns directly from dma addresses provided by
the sg table.
Suggested-by: Daniel Vetter <[email protected]>
Signed-off-by: Oleksandr Tyshchenko <[email protected]>
Acked-by: Christian König <[email protected]>
Reviewed-by: Stefano Stabellini <[email protected]>
Acked-by: Daniel Vetter <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Juergen Gross <[email protected]>
|
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Pick up the CPER to CXL driver integration work for v6.8. Some
additional cleanup of cper_estatus_print() messages is needed, but that
is to be handled incrementally.
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git://anongit.freedesktop.org/drm/drm-intel into drm-next
Driver Changes:
- Eliminate use of kmap_atomic() in i915 (Zhao)
- Add Wa_14019877138 for DG2 (Haridhar)
- Static checker and spelling fixes (Colin, Karthik, Randy)
Signed-off-by: Dave Airlie <[email protected]>
From: Joonas Lahtinen <[email protected]>
Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
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git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull KUnit updates from Shuah Khan:
- a new feature that adds APIs for managing devices introducing a set
of helper functions which allow devices (internally a struct
kunit_device) to be created and managed by KUnit.
These devices will be automatically unregistered on test exit. These
helpers can either use a user-provided struct device_driver, or have
one automatically created and managed by KUnit. In both cases, the
device lives on a new kunit_bus.
- changes to switch drm/tests to use kunit devices
- several fixes and enhancements to attribute feature
- changes to reorganize deferred action function introducing
KUNIT_DEFINE_ACTION_WRAPPER
- new feature adds ability to run tests after boot using debugfs
- fixes and enhancements to string-stream-test:
- parse ERR_PTR in string_stream_destroy()
- unchecked dereference in bug fix in debugfs_print_results()
- handling errors from alloc_string_stream()
- NULL-dereference bug fix in kunit_init_suite()
* tag 'linux_kselftest-kunit-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (27 commits)
kunit: Fix some comments which were mistakenly kerneldoc
kunit: Protect string comparisons against NULL
kunit: Add example of kunit_activate_static_stub() with pointer-to-function
kunit: Allow passing function pointer to kunit_activate_static_stub()
kunit: Fix NULL-dereference in kunit_init_suite() if suite->log is NULL
kunit: Reset test->priv after each param iteration
kunit: Add example for using test->priv
drm/tests: Switch to kunit devices
ASoC: topology: Replace fake root_device with kunit_device in tests
overflow: Replace fake root_device with kunit_device
fortify: test: Use kunit_device
kunit: Add APIs for managing devices
Documentation: Add debugfs docs with run after boot
kunit: add ability to run tests after boot using debugfs
kunit: add is_init test attribute
kunit: add example suite to test init suites
kunit: add KUNIT_INIT_TABLE to init linker section
kunit: move KUNIT_TABLE out of INIT_DATA
kunit: tool: add test for parsing attributes
kunit: tool: fix parsing of test attributes
...
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi
Pull EFI updates from Ard Biesheuvel:
- Fix a syzbot reported issue in efivarfs where concurrent accesses to
the file system resulted in list corruption
- Add support for accessing EFI variables via the TEE subsystem (and a
trusted application in the secure world) instead of via EFI runtime
firmware running in the OS's execution context
- Avoid linker tricks to discover the image base on LoongArch
* tag 'efi-next-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
efi: memmap: fix kernel-doc warnings
efi/loongarch: Directly position the loaded image file
efivarfs: automatically update super block flag
efi: Add tee-based EFI variable driver
efi: Add EFI_ACCESS_DENIED status code
efi: expose efivar generic ops register function
efivarfs: Move efivarfs list into superblock s_fs_info
efivarfs: Free s_fs_info on unmount
efivarfs: Move efivar availability check into FS context init
efivarfs: force RO when remounting if SetVariable is not supported
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Pull IPMI updates from Corey Minyard:
"Some small fixes. Nothing big, just aligning things with some changes"
* tag 'for-linus-6.8-1' of https://github.com/cminyard/linux-ipmi:
ipmi: Remove usage of the deprecated ida_simple_xx() API
ipmi: Use regspacings passed as a module parameter
ipmi: si: Use device_get_match_data()
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git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Hans de Goede:
- Intel PMC / PMT / TPMI / uncore-freq / vsec improvements and new
platform support
- AMD PMC / PMF improvements and new platform support
- AMD ACPI based Wifi band RFI mitigation feature (WBRF)
- WMI bus driver cleanups and improvements (Armin Wolf)
- acer-wmi Predator PHN16-71 support
- New Silicom network appliance EC LEDs / GPIOs driver
* tag 'platform-drivers-x86-v6.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (96 commits)
platform/x86/amd/pmc: Modify SMU message port for latest AMD platform
platform/x86/amd/pmc: Add 1Ah family series to STB support list
platform/x86/amd/pmc: Add idlemask support for 1Ah family
platform/x86/amd/pmc: call amd_pmc_get_ip_info() during driver probe
platform/x86/amd/pmc: Add VPE information for AMDI000A platform
platform/x86/amd/pmc: Send OS_HINT command for AMDI000A platform
platform/x86/amd/pmf: Return a status code only as a constant in two functions
platform/x86/amd/pmf: Return directly after a failed apmf_if_call() in apmf_sbios_heartbeat_notify()
platform/x86: wmi: linux/wmi.h: fix Excess kernel-doc description warning
platform/x86/intel/pmc: Add missing extern
platform/x86/intel/pmc/lnl: Add GBE LTR ignore during suspend
platform/x86/intel/pmc/arl: Add GBE LTR ignore during suspend
platform/x86: intel-uncore-freq: Add additional client processors
platform/x86: Remove "X86 PLATFORM DRIVERS - ARCH" from MAINTAINERS
platform/x86: hp-bioscfg: Removed needless asm-generic
platform/x86/intel/pmc: Add Lunar Lake M support to intel_pmc_core driver
platform/x86/intel/pmc: Add Arrow Lake S support to intel_pmc_core driver
platform/x86/intel/pmc: Add ssram_init flag in PMC discovery in Meteor Lake
platform/x86/intel/pmc: Move common code to core.c
platform/x86/intel/pmc: Add PSON residency counter for Alder Lake
...
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform firmware updates from Tzung-Bi Shih:
- Fix an invalid address access.
- Use .remove_new() for converting the callback to return void
* tag 'tag-chrome-platform-firmware-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
firmware: coreboot: Convert to platform remove callback returning void
firmware: coreboot: framebuffer: Avoid invalid zero physical address
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git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Tzung-Bi Shih:
- Implement quickselect for median in cros-ec-sensorhub
- Fix an out of boundary array access in cros-ec-vbc
- Cleanups and fix typos
* tag 'tag-chrome-platform-for-v6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome/wilco_ec: Remove usage of the deprecated ida_simple_xx() API
platform/chrome: cros_ec_vbc: Fix -Warray-bounds warnings
platform/chrome: sensorhub: Implement quickselect for median calculation
platform/chrome: sensorhub: Fix typos
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management updates from Rafael Wysocki:
"These add support for new processors (Sierra Forest, Grand Ridge and
Meteor Lake) to the intel_idle driver, make intel_pstate run on
Emerald Rapids without HWP support and adjust it to utilize EPP values
supplied by the platform firmware, fix issues, clean up code and
improve documentation.
The most significant fix addresses deadlocks in the core system-wide
resume code that occur if async_schedule_dev() attempts to run its
argument function synchronously (for example, due to a memory
allocation failure). It rearranges the code in question which may
increase the system resume time in some cases, but this basically is a
removal of a premature optimization. That optimization will be added
back later, but properly this time.
Specifics:
- Add support for the Sierra Forest, Grand Ridge and Meteorlake SoCs
to the intel_idle cpuidle driver (Artem Bityutskiy, Zhang Rui)
- Do not enable interrupts when entering idle in the haltpoll cpuidle
driver (Borislav Petkov)
- Add Emerald Rapids support in no-HWP mode to the intel_pstate
cpufreq driver (Zhenguo Yao)
- Use EPP values programmed by the platform firmware as balanced
performance ones by default in intel_pstate (Srinivas Pandruvada)
- Add a missing function return value check to the SCMI cpufreq
driver to avoid unexpected behavior (Alexandra Diupina)
- Fix parameter type warning in the armada-8k cpufreq driver (Gregory
CLEMENT)
- Rework trans_stat_show() in the devfreq core code to avoid buffer
overflows (Christian Marangi)
- Synchronize devfreq_monitor_[start/stop] so as to prevent a timer
list corruption from occurring when devfreq governors are switched
frequently (Mukesh Ojha)
- Fix possible deadlocks in the core system-wide PM code that occur
if device-handling functions cannot be executed asynchronously
during resume from system-wide suspend (Rafael J. Wysocki)
- Clean up unnecessary local variable initializations in multiple
places in the hibernation code (Wang chaodong, Li zeming)
- Adjust core hibernation code to avoid missing wakeup events that
occur after saving an image to persistent storage (Chris Feng)
- Update hibernation code to enforce correct ordering during image
compression and decompression (Hongchen Zhang)
- Use kmap_local_page() instead of kmap_atomic() in copy_data_page()
during hibernation and restore (Chen Haonan)
- Adjust documentation and code comments to reflect recent tasks
freezer changes (Kevin Hao)
- Repair excess function parameter description warning in the
hibernation image-saving code (Randy Dunlap)
- Fix _set_required_opps when opp is NULL (Bryan O'Donoghue)
- Use device_get_match_data() in the OPP code for TI (Rob Herring)
- Clean up OPP level and other parts and call dev_pm_opp_set_opp()
recursively for required OPPs (Viresh Kumar)"
* tag 'pm-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (35 commits)
OPP: Rename 'rate_clk_single'
OPP: Pass rounded rate to _set_opp()
OPP: Relocate dev_pm_opp_sync_regulators()
PM: sleep: Fix possible deadlocks in core system-wide PM code
OPP: Move dev_pm_opp_icc_bw to internal opp.h
async: Introduce async_schedule_dev_nocall()
async: Split async_schedule_node_domain()
cpuidle: haltpoll: Do not enable interrupts when entering idle
OPP: Fix _set_required_opps when opp is NULL
OPP: The level field is always of unsigned int type
PM: hibernate: Repair excess function parameter description warning
PM: sleep: Remove obsolete comment from unlock_system_sleep()
cpufreq: intel_pstate: Add Emerald Rapids support in no-HWP mode
Documentation: PM: Adjust freezing-of-tasks.rst to the freezer changes
PM: hibernate: Use kmap_local_page() in copy_data_page()
intel_idle: add Sierra Forest SoC support
intel_idle: add Grand Ridge SoC support
PM / devfreq: Synchronize devfreq_monitor_[start/stop]
cpufreq: armada-8k: Fix parameter type warning
PM: hibernate: Enforce ordering during image compression/decompression
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull thermal control updates from Rafael Wysocki:
"These add support for the D1/T113s THS controller to the sun8i driver
and a DT-based mechanism for platforms to indicate a preference to
reboot (instead of shutting down) on crossing a critical trip point,
fix issues, make other improvements (in the IPA governor, the Intel
HFI driver, the exynos driver and the thermal netlink interface among
other places) and clean up code.
One long-standing issue addressed here is that trip point crossing
notifications sent to user space might be unreliable due to the
incorrect handling of trip point hysteresis in the thermal core:
multiple notifications might be sent for the same event or there might
be events without any notification at all.
Specifics:
- Add dynamic thresholds for trip point crossing detection to prevent
trip point crossing notifications from being sent at incorrect
times or not at all in some cases (Rafael J. Wysocki)
- Fix synchronization issues related to the resume of thermal zones
during a system-wide resume and allow thermal zones to be resumed
concurrently (Rafael J. Wysocki)
- Modify the thermal zone unregistration to wait for the given zone
to go away completely before returning to the caller and rework the
sysfs interface for trip points on top of that (Rafael J. Wysocki)
- Fix a possible NULL pointer dereference in thermal zone
registration error path (Rafael J. Wysocki)
- Clean up the IPA thermal governor and modify it (with the help of a
new governor callback) to avoid allocating and freeing memory every
time its throttling callback is invoked (Lukasz Luba)
- Make the IPA thermal governor handle thermal instance weight
changes via sysfs correctly (Lukasz Luba)
- Update the thermal netlink code to avoid sending messages if there
are no recipients (Stanislaw Gruszka)
- Convert Mediatek Thermal to the json-schema (Rafał Miłecki)
- Fix thermal DT bindings issue on Loongson (Binbin Zhou)
- Fix returning NULL instead of -ENODEV during thermal probe on
Loogsoon (Binbin Zhou)
- Add thermal DT binding for tsens on the SM8650 platform (Neil
Armstrong)
- Add reboot on the critical trip point crossing option feature
(Fabio Estevam)
- Use DEFINE_SIMPLE_DEV_PM_OPS do define PM functions for thermal
suspend/resume on AmLogic (Uwe Kleine-König)
- Add D1/T113s THS controller support to the Sun8i thermal control
driver (Maxim Kiselev)
- Fix example in the thermal DT binding for QCom SPMI (Johan Hovold)
- Fix compilation warning in the tmon utility (Florian Eckert)
- Add support for interrupt-based thermal configuration on Exynos
along with a set of related cleanups (Mateusz Majewski)
- Make the Intel HFI thermal driver enable an HFI instance (eg.
processor package) from its first online CPU and disable it when
the last CPU in it goes offline (Ricardo Neri)
- Fix a kernel-doc warning and a spello in the cpuidle_cooling
thermal driver (Randy Dunlap)
- Move the .get_temp() thermal zone callback presence check to the
thermal zone registration code (Daniel Lezcano)
- Use the for_each_trip() macro for trip points table walks in a few
places in the thermal core (Rafael J. Wysocki)
- Make all trip point updates (via sysfs as well as from the platform
firmware) trigger trip change notifications (Rafael J. Wysocki)
- Drop redundant code from the thermal core and make one function in
it take a const pointer argument (Rafael J. Wysocki)"
* tag 'thermal-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (64 commits)
thermal: trip: Constify thermal zone argument of thermal_zone_trip_id()
thermal: intel: hfi: Disable an HFI instance when all its CPUs go offline
thermal: intel: hfi: Enable an HFI instance from its first online CPU
thermal: intel: hfi: Refactor enabling code into helper functions
thermal/drivers/exynos: Use set_trips ops
thermal/drivers/exynos: Use BIT wherever possible
thermal/drivers/exynos: Split initialization of TMU and the thermal zone
thermal/drivers/exynos: Stop using the threshold mechanism on Exynos 4210
thermal/drivers/exynos: Simplify regulator (de)initialization
thermal/drivers/exynos: Handle devm_regulator_get_optional return value correctly
thermal/drivers/exynos: Wwitch from workqueue-driven interrupt handling to threaded interrupts
thermal/drivers/exynos: Drop id field
thermal/drivers/exynos: Remove an unnecessary field description
tools/thermal/tmon: Fix compilation warning for wrong format
dt-bindings: thermal: qcom-spmi-adc-tm5/hc: Clean up examples
dt-bindings: thermal: qcom-spmi-adc-tm5/hc: Fix example node names
thermal/drivers/sun8i: Add D1/T113s THS controller support
dt-bindings: thermal: sun8i: Add binding for D1/T113s THS controller
thermal: amlogic: Use DEFINE_SIMPLE_DEV_PM_OPS for PM functions
thermal: amlogic: Make amlogic_thermal_disable() return void
...
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI updates from Rafael Wysocki:
"From the new features standpoint, the most significant change here is
the addition of CSI-2 and MIPI DisCo for Imaging support to the ACPI
device enumeration code that will allow MIPI cameras to be enumerated
through the platform firmware on systems using ACPI.
Also significant is the switch-over to threaded interrupt handlers for
the ACPI SCI and the dedicated EC interrupt (on systems where the
former is not used) which essentially allows all ACPI code to run with
local interrupts enabled. That should improve responsiveness
significantly on systems where multiple GPEs are enabled and the
handling of one SCI involves many I/O address space accesses which
previously had to be carried out in one go with disabled interrupts on
the local CPU.
Apart from the above, the ACPI thermal zone driver will use the
Thermal fast Sampling Period (_TFP) object if available, which should
allow temperature changes to be followed more accurately on some
systems, the ACPI Notify () handlers can run on all CPUs (not just on
CPU0), which should generally speed up the processing of events
signaled through the ACPI SCI, and the ACPI power button driver will
trigger wakeup key events via the input subsystem (on systems where it
is a system wakeup device)
In addition to that, there are the usual bunch of fixes and cleanups.
Specifics:
- Add CSI-2 and DisCo for Imaging support to the ACPI device
enumeration code (Sakari Ailus, Rafael J. Wysocki)
- Adjust the cpufreq thermal reduction algorithm in the ACPI
processor driver for Tegra241 (Srikar Srimath Tirumala, Arnd
Bergmann)
- Make acpi_proc_quirk_mwait_check() x86-specific (Rafael J. Wysocki)
- Switch over ACPI to using a threaded interrupt handler for the SCI
(Rafael J. Wysocki)
- Allow ACPI Notify () handlers to run on all CPUs and clean up the
ACPI interface for deferred events processing (Rafael J. Wysocki)
- Switch over the ACPI EC driver to using a threaded handler for the
dedicated IRQ on systems without the EC GPE (Rafael J. Wysocki)
- Adjust code using ACPICA spinlocks and the ACPI EC driver spinlock
to keep local interrupts on (Rafael J. Wysocki)
- Adjust the USB4 _OSC handshake to correctly handle cases in which
certain types of OS control are denied by the platform (Mika
Westerberg)
- Correct and clean up the generic function for parsing ACPI
data-only tables with array structure (Yuntao Wang)
- Modify acpi_dev_uid_match() to support different types of its
second argument and adjust its users accordingly (Raag Jadav)
- Clean up code related to acpi_evaluate_reference() and ACPI device
lists (Rafael J. Wysocki)
- Use generic ACPI helpers for evaluating trip point temperature
objects in the ACPI thermal zone driver (Rafael J. Wysockii, Arnd
Bergmann)
- Add Thermal fast Sampling Period (_TFP) support to the ACPI thermal
zone driver (Jeff Brasen)
- Modify the ACPI LPIT table handling code to avoid u32
multiplication overflows in state residency computations (Nikita
Kiryushin)
- Drop an unused helper function from the ACPI backlight (video)
driver and add a clarifying comment to it (Hans de Goede)
- Update the ACPI backlight driver to avoid using uninitialized
memory in some cases (Nikita Kiryushin)
- Add ACPI backlight quirk for the Colorful X15 AT 23 laptop (Yuluo
Qiu)
- Add support for vendor-defined error types to the ACPI APEI error
injection code (Avadhut Naik)
- Adjust APEI to properly set MF_ACTION_REQUIRED on synchronous
memory failure events, so they are handled differently from the
asynchronous ones (Shuai Xue)
- Fix NULL pointer dereference check in the ACPI extlog driver
(Prarit Bhargava)
- Adjust the ACPI extlog driver to clear the Extended Error Log
status when RAS_CEC handled the error (Tony Luck)
- Add IRQ override quirks for some Infinity laptops and for TongFang
GMxXGxx (David McFarland, Hans de Goede)
- Clean up the ACPI NUMA code and fix it to ensure that fake_pxm is
not the same as one of the real pxm values (Yuntao Wang)
- Fix the fractional clock divider flags in the ACPI LPSS (Intel SoC)
driver so as to prevent miscalculation of the values in the clock
divider (Andy Shevchenko)
- Adjust comments in the ACPI watchdog driver to prevent kernel-doc
from complaining during documentation builds (Randy Dunlap)
- Make the ACPI button driver send wakeup key events to user space in
addition to power button events on systems that can be woken up by
the power button (Ken Xue)
- Adjust pnpacpi_parse_allocated_vendor() to use memcpy() on a full
structure field (Dmitry Antipov)"
* tag 'acpi-6.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (56 commits)
ACPI: resource: Add Infinity laptops to irq1_edge_low_force_override
ACPI: button: trigger wakeup key events
ACPI: resource: Add another DMI match for the TongFang GMxXGxx
ACPI: EC: Use a spin lock without disabing interrupts
ACPI: EC: Use a threaded handler for dedicated IRQ
ACPI: OSL: Use spin locks without disabling interrupts
ACPI: APEI: set memory failure flags as MF_ACTION_REQUIRED on synchronous events
ACPI: utils: Introduce helper for _DEP list lookup
ACPI: utils: Fix white space in struct acpi_handle_list definition
ACPI: utils: Refine acpi_handle_list_equal() slightly
ACPI: utils: Return bool from acpi_evaluate_reference()
ACPI: utils: Rearrange in acpi_evaluate_reference()
ACPI: arm64: export acpi_arch_thermal_cpufreq_pctg()
ACPI: extlog: Clear Extended Error Log status when RAS_CEC handled the error
ACPI: LPSS: Fix the fractional clock divider flags
ACPI: NUMA: Fix the logic of getting the fake_pxm value
ACPI: NUMA: Optimize the check for the availability of node values
ACPI: NUMA: Remove unnecessary check in acpi_parse_gi_affinity()
ACPI: watchdog: fix kernel-doc warnings
ACPI: extlog: fix NULL pointer dereference check
...
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If the firmware has configured CXL event support to be firmware first
the OS can process those events through CPER records. The CXL layer has
unique DPA to HPA knowledge and standard event trace parsing in place.
CPER records contain Bus, Device, Function information which can be used
to identify the PCI device which is sending the event.
Change the PCI driver registration to include registration of a CXL
CPER callback to process events through the trace subsystem.
Use new scoped based management to simplify the handling of the PCI
device object.
Tested-by: Smita-Koralahalli <[email protected]>
Reviewed-by: Smita-Koralahalli <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Ira Weiny <[email protected]>
[djbw: use new pci_dev guard, flip init order]
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
|
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BIOS can configure memory devices as firmware first. This will send CXL
events to the firmware instead of the OS. The firmware can then send
these events to the OS via UEFI.
UEFI v2.10 section N.2.14 defines a Common Platform Error Record (CPER)
format for CXL Component Events. The format is mostly the same as the
CXL Common Event Record Format. The difference is the use of a GUID in
the Section Type rather than a UUID as part of the event itself.
Add GHES support to detect CXL CPER records and call a registered
callback with the event.
A notifier chain was considered for the callback but the complexity did
not justify the use case as only the CXL subsystem requires this event.
Enforce that only one callback can be registered at any time.
Cc: Ard Biesheuvel <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
[djbw: fixup checkpatch errors]
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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The CXL CPER and event log records share everything but a UUID/GUID in
their structures.
Define a cxl_event union without the UUID/GUID to be shared between the
CPER and event log record formats. Adjust the code to use this union.
Signed-off-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
|
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git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux
Pull mtd updates from Miquel Raynal:
"MTD:
- Apart from preventing the mtdblk to run on top of ftl or ubiblk
(which may cause security issues and has no meaning anyway), there
are a few misc fixes.
Raw NAND:
- Two meaningful changes this time. The conversion of the brcmnand
driver to the ->exec_op() API, this series brought additional
changes to the core in order to help controller drivers to handle
themselves the WP pin during destructive operations when relevant.
- There is also a series bringing important fixes to the sequential
read feature.
- As always, there is as well a whole bunch of miscellaneous W=1
fixes, together with a few runtime fixes (double free, timeout
value, OOB layout, missing register initialization) and the usual
load of remove callbacks turned into void (which led to switch the
txx9ndfmc driver to use module_platform_driver()).
SPI NOR:
- SPI NOR comes with die erase support for multi die flashes, with
new octal protocols (1-1-8 and 1-8-8) parsed from SFDP and with an
updated documentation about what the contributors shall consider
when proposing flash additions or updates.
- Michael Walle stepped out from the reviewer role to maintainer"
* tag 'mtd/for-6.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux: (39 commits)
mtd: rawnand: Clarify conditions to enable continuous reads
mtd: rawnand: Prevent sequential reads with on-die ECC engines
mtd: rawnand: Fix core interference with sequential reads
mtd: rawnand: Prevent crossing LUN boundaries during sequential reads
mtd: Fix gluebi NULL pointer dereference caused by ftl notifier
dt-bindings: mtd: partitions: u-boot: Fix typo
mtd: rawnand: s3c2410: fix Excess struct member description kernel-doc warnings
MAINTAINERS: change my mail to the kernel.org one
mtd: spi-nor: sfdp: get the 1-1-8 and 1-8-8 protocol from SFDP
mtd: spi-nor: drop superfluous debug prints
mtd: spi-nor: sysfs: hide the flash name if not set
mtd: spi-nor: mark the flash name as obsolete
mtd: spi-nor: print flash ID instead of name
mtd: maps: vmu-flash: Fix the (mtd core) switch to ref counters
mtd: ssfdc: Remove an unused variable
mtd: rawnand: diskonchip: fix a potential double free in doc_probe
mtd: rawnand: rockchip: Add missing title to a kernel doc comment
mtd: rawnand: rockchip: Rename a structure
mtd: rawnand: pl353: Fix kernel doc
mtd: spi-nor: micron-st: Add support for mt25qu01g
...
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The UEFI CXL CPER structure does not include the UUID. Now that the
UUID is passed separately to the trace event there is no need to have
the UUID in those structures.
Move UUID from the event record header to the raw structures. Adjust
cxl-test to Create dummy structures for creating test records.
Signed-off-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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The UUID data is redundant in the known event trace types. The addition
of static defines allows the trace macros to create the UUID data inside
the trace thus removing unnecessary code.
Have well known trace events use static data to set the uuid field based
on the event type.
Suggested-by: Jonathan Cameron <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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Dan points out in review that the cxl_test code could be made better
through the use of UUID's defines rather than being open coded.[1]
Create UUID defines and use them rather than open coding them.
Suggested-by: Dan Williams <[email protected]>
Signed-off-by: Ira Weiny <[email protected]>
Link: http://lore.kernel.org/r/[email protected] [1]
Link: https://lore.kernel.org/r/[email protected]
[djbw: clang-format uuid definitions]
Reviewed-by: Jonathan Cameron <[email protected]>
Acked-by: Ard Biesheuvel <[email protected]>
Signed-off-by: Dan Williams <[email protected]>
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Use the type blk_opf_t for read and write operations instead of int. This
patch does not affect the generated code but fixes the following sparse
warning:
drivers/md/raid1.c:1993:60: sparse: sparse: incorrect type in argument 5 (different base types)
expected restricted blk_opf_t [usertype] opf
got int rw
Cc: Song Liu <[email protected]>
Cc: Jens Axboe <[email protected]>
Fixes: 3c5e514db58f ("md/raid1: Use the new blk_opf_t type")
Cc: [email protected] # v6.0+
Reported-by: kernel test robot <[email protected]>
Closes: https://lore.kernel.org/oe-kbuild-all/[email protected]/
Signed-off-by: Bart Van Assche <[email protected]>
Signed-off-by: Song Liu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
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