Commit graph

1,188,286 commits

Author SHA1 Message Date
Dani Liberman
15ac503cdc habanalabs/gaudi2: capture RAZWI information
Added function to calculate possible engines which caused
RAZWI (read-only zero, write ignored), from a given router id or
module index.

When getting RAZWI via PSOC IP, first the router id is calculated
and then the possible engines that caused the RAZWI are calculated.

There is a possibility that the RAZWI initiator is not an engine. In
that case, it will not be included in possible engines as it
doesn't have an engine id.

RAZWI information is captured when receiving event from engine or via
PSOC IP.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:41 +02:00
Dani Liberman
17f3f42af2 habanalabs: handle HBM MMU when capturing page fault data
In case of HBM MMU page fault, capture its relevant mappings.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Tomer Tayar
1eebb25929 habanalabs: move reset workqueue to be under hl_device
'struct hl_device_reset_work' is used as a wrapper for the reset work
and its parameters, including the reset workqueue on which it runs.
In a future commit, another reset related work with similar parameters
is going to be added, but it won't use the reset workqueue.

As in any case there is a single reset workqueue, and to allow the resue
of this structure, move the reset workqueue to 'struct hl_device'.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Tomer Tayar
51236cd95e habanalabs: allow unregistering eventfd when device non-operational
Unregistering eventfd is for releasing host resources and doesn't
involve an access to the device. As such, there is no reason to disallow
it when device isn't operational.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Tomer Tayar
3a83ebc521 habanalabs: skip idle status check if reset on device release
If reset upon device release is enabled, there is no need to check the
device idle status in hpriv_release(), because device is going to be
reset in any case.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Tal Cohen
5731b6e6f0 habanalabs/gaudi2: add device unavailable notification
Device unavailable notifies the user that there isn't an option to
retrieve debug information from the device.
When a critical device error occurs and the f/w performs the device
reset, a device unavailable notification shall be sent to the user
process.

Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Koby Elbaz
16448d6444 habanalabs/gaudi2: remove privileged MME clock configuration
Privileged MME clock configuration is removed as it is done by the f/w.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Dafna Hirschfeld
189b203ebb habanalabs: replace 'pf' to 'prefetch'
pf was an abbreviation for prefetch but because pf already stands
for 'physical function', we decided to change it to 'prefetch'.

Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Dani Liberman
dd600db47b habanalabs: add page fault info uapi
Only the first page fault will be saved.
Besides the address which caused the page fault, the driver captures
all of the mmu user mappings.
User can retrieve this data via the new uapi (new opcode in INFO ioctl).

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Tomer Tayar
6d1c567f2a habanalabs/gaudi2: fix module ID for RAZWI handling
RAZWI is optionally handled as part of the generic QM SEI error
handling, but it always uses PDMA as the module ID.
Fix it to use the suitable module ID according to the specific event.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Bharat Jauhari
0502df9bbe habanalabs: use lower_32_bits()
This fixes sparse warning on doing cast to 32-bits

Signed-off-by: Bharat Jauhari <bjauhari@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:40 +02:00
Dani Liberman
52d5e54695 habanalabs: refactor razwi event notification
This event notification was compatible only with gaudi, where razwi
and page fault happens together.

To make it compatible with all ASICs, this refactor contains:

1. Razwi notification will only notify about razwi info.
   New notification will be added in future patch, to retrieve data
   about page fault error.

2. Changed razwi info structure to support all ASICs.

Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:39 +02:00
Oded Gabbay
ea73ef14dd habanalabs: Use simplified API for p2p dist calc
Use the simplified API that calculates distance between two devices.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:39 +02:00
Ofir Bitton
a925d90b36 habanalabs: allow control device open during reset
Monitoring apps would like to query device state at any time so we
should allow it also during reset because it doesn't involve
accessing the h/w.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:39 +02:00
Yang Yingliang
8749c27895 habanalabs: fix return value check in hl_fw_get_sec_attest_data()
If hl_cpu_accessible_dma_pool_alloc() fails, we should check
'req_cpu_addr', fix it.

Fixes: 0c88760f8f ("habanalabs/gaudi2: add secured attestation info uapi")
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-11-23 16:13:39 +02:00
Ville Syrjälä
af2c3b557e drm/i915/dvo: Log about what was detected on which DVO port
Currently it's not 100% obvious which DVO encoder chip was
found on which port. Leave a slightly better trace in log.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-11-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:07:30 +02:00
Ville Syrjälä
df9f0ebe87 drm/i915/dvo: Extract intel_dvo_regs.h
Pull the DVO port register definitons into their own header
to declutter i915_reg.h a bit.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-10-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:07:19 +02:00
Ville Syrjälä
079c4c0c6c drm/i915/dvo: Use intel_de_rmw() for DVO enable/disable
Replace the hand rolled RMW with intel_de_rmw() in the DVO
port enable/disable functions. Also switch to intel_de_posting_read()
for the posting read (though maybe it should be just be nuked...).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-9-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:07:09 +02:00
Ville Syrjälä
7ce5b3a704 drm/i915/dvo: Use REG_BIT() & co. for DVO registers
Polish the DVO port registers with REG_BIT()/etc.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-8-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:06:50 +02:00
Ville Syrjälä
9710a5c14e drm/i915/dvo: Rename the "active data order" bits
We have two sets of bits for DVO "data order" stuff. Rename
one set to ACT_DATA_ORDER to make it clear they are separate
bitfields.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-7-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:06:38 +02:00
Ville Syrjälä
5abd7d8d0e drm/i915/dvo: Define a few more DVO register bits
Define a few extra interrupt related bits on the DVO register.
One of these we included in the DVO_PRESERVE_MASK already.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-6-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:06:15 +02:00
Ville Syrjälä
a8d9a13d24 drm/i915/dvo: Parametrize DVO/DVO_SRCDIM registers
Get rid of the dvo_reg/dvo_srcdim_reg stuff by parametrizing
the DVO port registers.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-5-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:06:03 +02:00
Ville Syrjälä
bf590368e5 drm/i915/dvo/sil164: Fix suspend/resume
Poke a few more bits into the SiI164 to make it
recover after S3. HEN/VEN are the important bits,
the rest PLL filter/HPD detection I just did
for good measure to match the BIOS programming.

Note that the spec recommended SCNT bit in REGC
isn't set by the BIOS at least for me, so I left
it out.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-4-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:05:54 +02:00
Ville Syrjälä
49908b743f drm/i915/dvo/sil164: Nuke pointless return statements
Drop the pointless return statements at the end of void
functions.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:05:45 +02:00
Ville Syrjälä
6ad0571b58 drm/i915/dvo/ch7xxx: Fix suspend/resume
Poke a few more bits into the ch7xxx to make
it output a picture after being reset during S3.

In particular we need to set the input buffer select (IBS),
and enable VGA vsync output on the BCO pin. Selecting
VGA hsync on the c/h sync pin doesn't actually seem necessary
on my ADD card at least, but the BIOS selects it so why not.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221122120825.26338-2-ville.syrjala@linux.intel.com
Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-11-23 16:05:33 +02:00
Jane Jian
ecb41b71ef drm/amdgpu/vcn: re-use original vcn0 doorbell value
root cause that S2A need to use deduct offset flag.
after setting this flag, vcn0 doorbell value works.
so return it as before

Signed-off-by: Jane Jian <Jane.Jian@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:54 -05:00
Alex Deucher
602ad43c3c drm/amdgpu: Partially revert "drm/amdgpu: update drm_display_info correctly when the edid is read"
This partially reverts 20543be93c.

Calling drm_connector_update_edid_property() in
amdgpu_connector_free_edid() causes a noticeable pause in
the system every 10 seconds on polled outputs so revert this
part of the change.

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2257
Cc: Claudio Suarez <cssk@net-c.es>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-11-23 09:01:53 -05:00
Tsung-hua Lin
a6e1775da0 drm/amd/display: No display after resume from WB/CB
[why]
First MST sideband message returns AUX_RET_ERROR_HPD_DISCON
on certain intel platform. Aux transaction considered failure
if HPD unexpected pulled low. The actual aux transaction success
in such case, hence do not return error.

[how]
Not returning error when AUX_RET_ERROR_HPD_DISCON detected
on the first sideband message.

v2: squash in fix (Alex)

Reviewed-by: Jerry Zuo <Jerry.Zuo@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Tsung-hua Lin <Tsung-hua.Lin@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-11-23 09:01:53 -05:00
Stanley.Yang
3cb93f3904 drm/amdgpu: fix use-after-free during gpu recovery
[Why]
    [  754.862560] refcount_t: underflow; use-after-free.
    [  754.862898] Call Trace:
    [  754.862903]  <TASK>
    [  754.862913]  amdgpu_job_free_cb+0xc2/0xe1 [amdgpu]
    [  754.863543]  drm_sched_main.cold+0x34/0x39 [amd_sched]

[How]
    The fw_fence may be not init, check whether dma_fence_init
    is performed before job free

Signed-off-by: Stanley.Yang <Stanley.Yang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
lyndonli
f2e1aa267f drm/amd/pm: update driver if header for smu_13_0_7
update driver if header for smu_13_0_7

Signed-off-by: lyndonli <Lyndon.Li@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x
2022-11-23 09:01:53 -05:00
David Galiffi
a26a54fbe3 drm/amd/display: Fix rotated cursor offset calculation
[Why]
Underflow is observed when cursor is still enabled when the cursor
rectangle is outside the bounds of it's surface viewport.

[How]
Update parameters used to determine when cursor should be disabled.

Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
Dillon Varone
e667ee3b0c drm/amd/display: Use new num clk levels struct for max mclk index
[WHY?]
When calculating watermark and dlg values, the max mclk level index and
associated speed are needed to find the correlated dummy latency value.
Currently the incorrect index is given due to a clock manager refactor.

[HOW?]
Use num_memclk_level from num_entries_per_clk struct for getting the correct max
mem speed.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
Taimur Hassan
2a5dd86a69 drm/amd/display: Avoid setting pixel rate divider to N/A
[Why]
Pixel rate divider values should never be set to N/A (0xF) as the K1/K2
field is only 1/2 bits wide.

[How]
Set valid divider values for virtual and FRL/DP2 cases.

Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Taimur Hassan <Syed.Hassan@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
Dillon Varone
dd2c028c13 drm/amd/display: Use viewport height for subvp mall allocation size
[WHY?]
MALL allocation size depends on the viewport height, not the addressable
vertical lines, which will not match when scaling.

[HOW?]
Base MALL allocation size calculations off viewport height.

Reviewed-by: Alvin Lee <Alvin.Lee2@amd.com>
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
Dillon Varone
5d82c82f1d drm/amd/display: Update soc bounding box for dcn32/dcn321
[Description]
New values for soc bounding box and dummy pstate.

Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Brian Chang <Brian.Chang@amd.com>
Signed-off-by: Dillon Varone <Dillon.Varone@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.0.x
2022-11-23 09:01:53 -05:00
Lyude Paul
44035ec2fd drm/amd/dc/dce120: Fix audio register mapping, stop triggering KASAN
There's been a very long running bug that seems to have been neglected for
a while, where amdgpu consistently triggers a KASAN error at start:

  BUG: KASAN: global-out-of-bounds in read_indirect_azalia_reg+0x1d4/0x2a0 [amdgpu]
  Read of size 4 at addr ffffffffc2274b28 by task modprobe/1889

After digging through amd's rather creative method for accessing registers,
I eventually discovered the problem likely has to do with the fact that on
my dce120 GPU there are supposedly 7 sets of audio registers. But we only
define a register mapping for 6 sets.

So, fix this and fix the KASAN warning finally.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2022-11-23 09:01:53 -05:00
Alex Deucher
4f2bea62cf drm/amdgpu/psp: don't free PSP buffers on suspend
We can reuse the same buffers on resume.

v2: squash in S4 fix from Shikai

Bug: https://gitlab.freedesktop.org/drm/amd/-/issues/2213
Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Guilherme G. Piccoli <gpiccoli@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2022-11-23 09:01:53 -05:00
Xiu Jianfeng
739a6a6bbd clk: rockchip: Fix memory leak in rockchip_clk_register_pll()
If clk_register() fails, @pll->rate_table may have allocated memory by
kmemdup(), so it needs to be freed, otherwise will cause memory leak
issue, this patch fixes it.

Fixes: 90c5902540 ("clk: rockchip: add clock type for pll clocks and pll used on rk3066")
Signed-off-by: Xiu Jianfeng <xiujianfeng@huawei.com>
Link: https://lore.kernel.org/r/20221123091201.199819-1-xiujianfeng@huawei.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
2022-11-23 14:51:30 +01:00
Jinlong Chen
4284354758 elevator: remove an outdated comment in elevator_change
mq is no longer a special case.

Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/cbf47824fc726440371e74c867bf635ae1b671a3.1669126766.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-23 06:48:20 -07:00
Jinlong Chen
f69b5e8f35 elevator: update the document of elevator_match
elevator_match does not care about elevator_features any more. Remove
related descriptions from its document.

Fixes: ffb86425ee ("block: don't check for required features in elevator_match")
Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/a58424555202c07a9ccf7f60c3ad7e247da09e25.1669126766.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-23 06:48:20 -07:00
Jinlong Chen
e0cca8bc9c elevator: printk a warning if switching to a new io scheduler fails
printk a warning to indicate that the io scheduler has been set to none
if switching to a new io scheduler fails.

Suggested-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/d51ed0fb457db7a4f9cbb0dbce36d534e22be457.1669126766.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-23 06:48:08 -07:00
Edward Cree
e80bd08fd7 sfc: ensure type is valid before updating seen_gen
In the case of invalid or corrupted v2 counter update packets,
 efx_tc_rx_version_2() returns EFX_TC_COUNTER_TYPE_MAX.  In this case
 we should not attempt to update generation counts as this will write
 beyond the end of the seen_gen array.

Reported-by: coverity-bot <keescook+coverity-bot@chromium.org>
Addresses-Coverity-ID: 1527356 ("Memory - illegal accesses")
Fixes: 25730d8be5 ("sfc: add extra RX channel to receive MAE counter updates on ef100")
Signed-off-by: Edward Cree <ecree.xilinx@gmail.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-23 13:47:51 +00:00
Jinlong Chen
ac1171bd2c elevator: update the document of elevator_switch
We no longer support falling back to the old io scheduler if switching to
the new one fails. Update the document to indicate that.

Fixes: a1ce35fa49 ("block: remove dead elevator code")
Signed-off-by: Jinlong Chen <nickyc975@zju.edu.cn>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/94250961689ba7d2e67a7d9e7995a11166fedb31.1669126766.git.nickyc975@zju.edu.cn
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2022-11-23 06:47:46 -07:00
Santiago Ruano Rincón
748064b54c net/cdc_ncm: Fix multicast RX support for CDC NCM devices with ZLP
ZLP for DisplayLink ethernet devices was enabled in 6.0:
266c0190ae ("net/cdc_ncm: Enable ZLP for DisplayLink ethernet devices").
The related driver_info should be the "same as cdc_ncm_info, but with
FLAG_SEND_ZLP". However, set_rx_mode that enables handling multicast
traffic was missing in the new cdc_ncm_zlp_info.

usbnet_cdc_update_filter rx mode was introduced in linux 5.9 with:
e10dcb1b6b ("net: cdc_ncm: hook into set_rx_mode to admit multicast
traffic")

Without this hook, multicast, and then IPv6 SLAAC, is broken.

Fixes: 266c0190ae ("net/cdc_ncm: Enable ZLP for DisplayLink ethernet devices")
Signed-off-by: Santiago Ruano Rincón <santiago.ruano-rincon@imt-atlantique.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
2022-11-23 13:46:42 +00:00
Namhyung Kim
c66a36af7b perf lock contention: Do not use BPF task local storage
It caused some troubles when a lock inside kmalloc is contended
because task local storage would allocate memory using kmalloc.
It'd create a recusion and even crash in my system.

There could be a couple of workarounds but I think the simplest
one is to use a pre-allocated hash map.  We could fix the task
local storage to use the safe BPF allocator, but it takes time
so let's change this until it happens actually.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Martin KaFai Lau <martin.lau@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Blake Jones <blakejones@google.com>
Cc: Chris Li <chriscli@google.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221118190109.1512674-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-23 10:42:28 -03:00
John Garry
7b7c22ccdf MAINTAINERS: Update John Garry's email address for arm64 perf tooling
Update my address.

Signed-off-by: John Garry <john.g.garry@oracle.com>
Acked-by: Will Deacon <will@kernel.org>
Cc: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20221121113018.1899426-1-john.g.garry@oracle.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-23 10:41:13 -03:00
Michael Petlan
2e9f5bda2f perf test: Fix record test on KVM guests
Using precise flag with br_inst_retired.near_call causes the test fail
on KVM guests, even when the guests have PMU forwarding enabled and the
event itself is supported.

Remove the precise flag in order to make the test work on KVM guests.

Signed-off-by: Michael Petlan <mpetlan@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Link: https://lore.kernel.org/r/20221122083121.6012-1-mpetlan@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-23 10:35:45 -03:00
Namhyung Kim
19030564ab perf inject: Set PERF_RECORD_MISC_BUILD_ID_SIZE
With perf inject -b, it synthesizes build-id event for DSOs.  But it
missed to set the size and resulted in having trailing zeros.

As perf record sets the size in write_build_id(), let's set the size
here as well.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Ian Rogers <irogers@google.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20221119002750.1568027-1-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-23 10:34:40 -03:00
Naveen N. Rao
7d54a4acd8 perf test: Skip watchpoint tests if no watchpoints available
On IBM Power9, perf watchpoint tests fail since no hardware breakpoints
are available. Detect this by checking the error returned by
perf_event_open() and skip the tests in that case.

Reported-by: Disha Goel <disgoel@linux.vnet.ibm.com>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Ian Rogers <irogers@google.com>
Reviewed-by: Kajol Jain<kjain@linux.ibm.com>
Tested-by: Kajol Jain<kjain@linux.ibm.com>
Link: https://lore.kernel.org/r/20221121102747.208289-1-naveen.n.rao@linux.vnet.ibm.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-perf-users@vger.kernel.org
2022-11-23 10:32:53 -03:00
Leo Yan
8daf87f592 perf trace: Remove unused bpf map 'syscalls'
augmented_raw_syscalls.c defines the bpf map 'syscalls' which is
initialized by perf tool in user space to indicate which system calls
are enabled for tracing, on the other flip eBPF program relies on the
map to filter out the trace events which are not enabled.

The map also includes a field 'string_args_len[6]' which presents the
string length if the corresponding argument is a string type.

Now the map 'syscalls' is not used, bpf program doesn't use it as filter
anymore, this is replaced by using the function bpf_tail_call() and
PROG_ARRAY syscalls map.  And we don't need to explicitly set the string
length anymore, bpf_probe_read_str() is smart to copy the string and
return string length.

Therefore, it's safe to remove the bpf map 'syscalls'.

To consolidate the code, this patch removes the definition of map
'syscalls' from augmented_raw_syscalls.c and drops code for using
the map in the perf trace.

Note, since function trace__set_ev_qualifier_bpf_filter() is removed,
calling trace__init_syscall_bpf_progs() from it is also removed.  We
don't need to worry it because trace__init_syscall_bpf_progs() is
still invoked from trace__init_syscalls_bpf_prog_array_maps() for
initialization the system call's bpf program callback.

After:

  # perf trace -e examples/bpf/augmented_raw_syscalls.c,open* --max-events 10 perf stat --quiet sleep 0.001
  openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libelf.so.1", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libdw.so.1", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libunwind.so.8", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libunwind-aarch64.so.8", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libcrypto.so.3", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libslang.so.2", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libperl.so.5.34", O_RDONLY|O_CLOEXEC) = 3
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libc.so.6", O_RDONLY|O_CLOEXEC) = 3

  # perf trace -e examples/bpf/augmented_raw_syscalls.c --max-events 10 perf stat --quiet sleep 0.001
  ... [continued]: execve())             = 0
  brk(NULL)                               = 0xaaaab1d28000
  faccessat(-100, "/etc/ld.so.preload", 4) = -1 ENOENT (No such file or directory)
  openat(AT_FDCWD, "/etc/ld.so.cache", O_RDONLY|O_CLOEXEC) = 3
  close(3</usr/lib/aarch64-linux-gnu/libcrypto.so.3>) = 0
  openat(AT_FDCWD, "/lib/aarch64-linux-gnu/libm.so.6", O_RDONLY|O_CLOEXEC) = 3
  read(3</usr/lib/aarch64-linux-gnu/libcrypto.so.3>, 0xfffff33f70d0, 832) = 832
  munmap(0xffffb5519000, 28672)           = 0
  munmap(0xffffb55b7000, 32880)           = 0
  mprotect(0xffffb55a6000, 61440, PROT_NONE) = 0

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Tested-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Acked-by: Ian Rogers <irogers@google.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: bpf@vger.kernel.org
Link: https://lore.kernel.org/r/20221121075237.127706-6-leo.yan@linaro.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2022-11-23 10:30:00 -03:00