platform/kernel/linux-rpi.git
3 years agomei: revamp mei extension header structure layout.
Tomas Winkler [Mon, 21 Jun 2021 19:37:56 +0000 (22:37 +0300)]
mei: revamp mei extension header structure layout.

The mei extension header was build as array of flexible structures
which will not work if actually more headers are added.
(Currently only vtag header was used).
Sparse reports:

drivers/misc/mei/hw.h:253:32: warning: array of flexible structures

Use basic type u8 for the variable sized extension.
Define explicitly mei_ext_hdr_vtag structure.
And also fix mei_ext_next() function to point correctly to the
end of the header.

Note: the headers are part of firmware interface and need to be __packed.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20210621193756.134027-2-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agomei: fix kdoc in the driver
Tamar Mashiah [Mon, 21 Jun 2021 19:37:55 +0000 (22:37 +0300)]
mei: fix kdoc in the driver

Over time the functions were renamed,
but this was not always reflected in kdoc, fix that.

Signed-off-by: Tamar Mashiah <tamar.mashiah@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Link: https://lore.kernel.org/r/20210621193756.134027-1-tomas.winkler@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoMerge tag 'misc-habanalabs-next-2021-06-22' of https://git.kernel.org/pub/scm/linux...
Greg Kroah-Hartman [Tue, 22 Jun 2021 10:37:19 +0000 (12:37 +0200)]
Merge tag 'misc-habanalabs-next-2021-06-22' of https://git./linux/kernel/git/ogabbay/linux into char-misc-next

Oded writes:

This tag contains habanalabs driver changes for v5.14:

- Change communication protocol with f/w. The new protocl allows better
  backward compatibility between different f/w versions and is more
  stable.
- Send hard-reset cause to f/w after a hard-reset has happened.
- Move to indirection when generating interrupts to f/w.
- Better progress and error messages during the f/w load stage.
- Recognize that f/w is with enabled security according to device ID.
- Add validity check to event queue mechanism.
- Add new event from f/w that will indicate a daemon has been terminated
  inside the f/w.

- Move to TLB cache range invalidation in the device's MMU.
- Disable memory scrubbing by default for performance.

- Many fixes for sparse/smatch reported errors.
- Enable by default stop-on-err in the ASIC.
- Move to ASYNC device probing to speedup loading of driver in server
  with multiple devices.
- Fix to stop using disabled NIC ports when doing collective operation.
- Use standard error codes instead of positive values.
- Add support for resetting device after user has finished using it.
- Add debugfs option to avoid reset when a CS has got stuck.
- Add print of the last 8 CS pointers in case of error in QMANs.
- Add statistics on opening of the FD of a device.

* tag 'misc-habanalabs-next-2021-06-22' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (72 commits)
  habanalabs/gaudi: refactor hard-reset related code
  habanalabs/gaudi: add support for NIC DERR
  habanalabs: add validity check for signal cs
  habanalabs: get lower/upper 32 bits via masking
  habanalabs: allow reset upon device release
  debugfs: add skip_reset_on_timeout option
  habanalabs: fix typo
  habanalabs/gaudi: correct driver events numbering
  habanalabs: remove a rogue #ifdef
  habanalabs/gaudi: print last QM PQEs on error
  habanalabs/goya: add '__force' attribute to suppress false alarm
  habanalabs: added open_stats info ioctl
  habanalabs/gaudi: set the correct rc in case of err
  habanalabs/gaudi: update coresight configuration
  habanalabs: remove node from list before freeing the node
  habanalabs: set rc as 'valid' in case of intentional func exit
  habanalabs: zero complex structures using memset
  habanalabs: print more info when failing to pin user memory
  habanalabs: Fix an error handling path in 'hl_pci_probe()'
  habanalabs: print firmware versions
  ...

3 years agoMerge tag 'soundwire-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul...
Greg Kroah-Hartman [Tue, 22 Jun 2021 10:36:29 +0000 (12:36 +0200)]
Merge tag 'soundwire-5.14-rc1' of git://git./linux/kernel/git/vkoul/soundwire into char-misc-next

Vinod writes:

soundwire updates for 5.14-rc1

Updates for v5.14-rc1 are:

- Core has odd updates including improving clock stop codes, write api,
  handling ENODATA etc

 - Drivers has Big move of Intel driver to be aux dev and minor updates
   to Intel/cadence driver

* tag 'soundwire-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  soundwire: stream: Fix test for DP prepare complete
  soundwire: bus: Make sdw_nwrite() data pointer argument const
  soundwire: intel: move to auxiliary bus
  soundwire: cadence: remove the repeated declaration
  soundwire: dmi-quirks: remove duplicate initialization
  soundwire: cadence_master: always set CMD_ACCEPT
  soundwire: bus: add missing \n in dynamic debug
  soundwire: bus: handle -ENODATA errors in clock stop/start sequences
  soundwire: add missing kernel-doc description
  soundwire: bus: only use CLOCK_STOP_MODE0 and fix confusions
  soundwire: bandwidth allocation: improve error messages
  soundwire/ASoC: add leading zeroes in peripheral device name

3 years agohabanalabs/gaudi: refactor hard-reset related code
Koby Elbaz [Tue, 15 Jun 2021 14:07:02 +0000 (17:07 +0300)]
habanalabs/gaudi: refactor hard-reset related code

There is code related to hard-reset, which is done in gaudi specific
code. However, this code can be used by future ASICs and therefore it
is better to move it to the common code section.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: add support for NIC DERR
Ofir Bitton [Thu, 17 Jun 2021 06:52:55 +0000 (09:52 +0300)]
habanalabs/gaudi: add support for NIC DERR

We add support for NIC DERR ECC error events, in case this error
is received a device reset will be performed.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: add validity check for signal cs
farah kassabri [Tue, 1 Jun 2021 13:44:28 +0000 (16:44 +0300)]
habanalabs: add validity check for signal cs

In preparation for a new feature that allows the user to reserve
signals ahead of submissions, we need to change a current assumption
in the code.

Currently, the driver uses 2 SOBs to support signal CS. When the first
SOB reaches max value, the driver switches to the other one and assumes
that when it will need to switch back to the first one, all of the
signals have already been handled.

This assumption won't hold when the new feature will be added, because
using signal reservation, the driver can reach the max SOB value very
fast.

The change is to add a validity check when submitting a signal CS, to
make sure the previous SOB is available (all the signals attached to
it indeed finished).

Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: get lower/upper 32 bits via masking
Koby Elbaz [Thu, 17 Jun 2021 14:04:16 +0000 (17:04 +0300)]
habanalabs: get lower/upper 32 bits via masking

fix multiple similar occurrences of the following sparse warning:
'warning: cast truncates bits from constant value
(7ffc113000 becomes fc113000)'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: allow reset upon device release
Ofir Bitton [Tue, 8 Jun 2021 14:24:52 +0000 (17:24 +0300)]
habanalabs: allow reset upon device release

We introduce a new type of reset which is reset upon device release.
This reset is very similar to soft reset except the fact it is
performed only upon device release and not upon user sysfs request
nor TDR.

The purpose of this reset is to make sure the device is returned to
IDLE state after the current user has finished working with the device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agosoundwire: stream: Fix test for DP prepare complete
Richard Fitzgerald [Fri, 18 Jun 2021 14:47:45 +0000 (15:47 +0100)]
soundwire: stream: Fix test for DP prepare complete

In sdw_prep_deprep_slave_ports(), after the wait_for_completion()
the DP prepare status register is read. If this indicates that the
port is now prepared, the code should continue with the port setup.
It is irrelevant whether the wait_for_completion() timed out if the
port is now ready.

The previous implementation would always fail if the
wait_for_completion() timed out, even if the port was reporting
successful prepare.

This patch also fixes a minor bug where the return from sdw_read()
was not checked for error - any error code with LSBits clear could
be misinterpreted as a successful port prepare.

Fixes: 79df15b7d37c ("soundwire: Add helpers for ports operations")
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210618144745.30629-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
3 years agosoundwire: bus: Make sdw_nwrite() data pointer argument const
Richard Fitzgerald [Wed, 16 Jun 2021 14:59:01 +0000 (15:59 +0100)]
soundwire: bus: Make sdw_nwrite() data pointer argument const

Idiomatically, write functions should take const pointers to the
data buffer, as they don't change the data. They are also likely
to be called from functions that receive a const data pointer.

Internally the pointer is passed to function/structs shared with
the read functions, requiring a cast, but this is an implementation
detail that should be hidden by the public API.

Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210616145901.29402-1-rf@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
3 years agodebugfs: add skip_reset_on_timeout option
Yuri Nudelman [Sun, 13 Jun 2021 06:22:20 +0000 (09:22 +0300)]
debugfs: add skip_reset_on_timeout option

To be able to debug long-running CS better, without changing the
userspace code, we are adding a new option through debugfs interface
to skip the reset of the device in case of CS timeout.

Signed-off-by: Yuri Nudelman <ynudelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: fix typo
Zvika Yehudai [Tue, 15 Jun 2021 11:12:20 +0000 (14:12 +0300)]
habanalabs: fix typo

fix a spelling error in comment

Signed-off-by: Zvika Yehudai <zyehudai@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: correct driver events numbering
Ofir Bitton [Mon, 7 Jun 2021 12:22:56 +0000 (15:22 +0300)]
habanalabs/gaudi: correct driver events numbering

Currently driver sends fc interrupt id to FW instead of using
cpu interrupt id. We intend to fix that and keep backward
compatibility by using the same interrupt values.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: remove a rogue #ifdef
Oded Gabbay [Tue, 15 Jun 2021 09:00:38 +0000 (12:00 +0300)]
habanalabs: remove a rogue #ifdef

There was a rogue #ifdef that crept into the upstream code for
backwards compatibility which isn't needed of course.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: print last QM PQEs on error
Ohad Sharabi [Mon, 24 May 2021 06:59:31 +0000 (09:59 +0300)]
habanalabs/gaudi: print last QM PQEs on error

In case QMAN has an error and stop_on_err is true, print specific
information of the "offending" command buffer batch.

If the error occurred on one of the higher CPs, the CQ pointer and size
will be printed along with (up to) last 8 PQEs of the stream.

If the error occurred in the lower CP, the CQ pointer and size will be
printed along with (up to) last 8 PQEs of ALL upper CPs as we have no
way to know which upper CP sent the job there.

This is done so higher SW levels will be able to debug their CS by
extracting the raw data of the offending command buffer batch and
examine those offline to detect the issue.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/goya: add '__force' attribute to suppress false alarm
Koby Elbaz [Mon, 14 Jun 2021 05:06:15 +0000 (08:06 +0300)]
habanalabs/goya: add '__force' attribute to suppress false alarm

fix (suppress) the following sparse warnings:
'warning: cast removes address space of expression'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: added open_stats info ioctl
Yuri Nudelman [Mon, 24 May 2021 08:25:21 +0000 (11:25 +0300)]
habanalabs: added open_stats info ioctl

In a system with multiple ASICs, there is a need to provide monitoring
tools with information on how long a device was opened and how many
times a device was opened.

Therefore, we add a new opcode to the INFO ioctl to provide that
information.

Signed-off-by: Yuri Nudelman <ynudelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: set the correct rc in case of err
Koby Elbaz [Thu, 10 Jun 2021 06:14:43 +0000 (09:14 +0300)]
habanalabs/gaudi: set the correct rc in case of err

fix the following smatch warnings:
gaudi_internal_cb_pool_init() warn: missing error code 'rc'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: update coresight configuration
Tal Albo [Thu, 10 Jun 2021 09:18:37 +0000 (12:18 +0300)]
habanalabs/gaudi: update coresight configuration

Update STMTCSR and STMSYNCR values in order to reduce amount of sync
packets

Signed-off-by: Tal Albo <talbo@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: remove node from list before freeing the node
Koby Elbaz [Wed, 9 Jun 2021 18:43:52 +0000 (21:43 +0300)]
habanalabs: remove node from list before freeing the node

fix the following smatch warnings:

goya_pin_memory_before_cs()
warn: '&userptr->job_node' not removed from list

gaudi_pin_memory_before_cs()
warn: '&userptr->job_node' not removed from list

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: set rc as 'valid' in case of intentional func exit
Koby Elbaz [Thu, 10 Jun 2021 06:01:57 +0000 (09:01 +0300)]
habanalabs: set rc as 'valid' in case of intentional func exit

fix the following smatch warnings:
hl_fw_static_init_cpu() warn: missing error code 'rc'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: zero complex structures using memset
Koby Elbaz [Thu, 10 Jun 2021 12:09:54 +0000 (15:09 +0300)]
habanalabs: zero complex structures using memset

fix the following sparse warnings:
'warning: Using plain integer as NULL pointer'
'warning: missing braces around initializer'

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: print more info when failing to pin user memory
Tomer Tayar [Thu, 10 Jun 2021 17:48:39 +0000 (20:48 +0300)]
habanalabs: print more info when failing to pin user memory

pin_user_pages_fast() might fail and return a negative number, or pin
less pages than requested and return the number of the pages that were
pinned.
For the latter, it is informative to print also the memory size and the
number of requested pages.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: Fix an error handling path in 'hl_pci_probe()'
Christophe JAILLET [Sat, 12 Jun 2021 05:39:51 +0000 (07:39 +0200)]
habanalabs: Fix an error handling path in 'hl_pci_probe()'

If an error occurs after a 'pci_enable_pcie_error_reporting()' call, it
must be undone by a corresponding 'pci_disable_pcie_error_reporting()'
call, as already done in the remove function.

Fixes: 2e5eda4681f9 ("habanalabs: PCIe Advanced Error Reporting support")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: print firmware versions
Oded Gabbay [Wed, 9 Jun 2021 07:04:35 +0000 (10:04 +0300)]
habanalabs: print firmware versions

Firmware in habanalabs devices is composed of several components.
During device initialization, we read these versions from the device.
Print them during device initialization to allow better visibility in
automated systems.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: add hard reset timeout for PLDM
Omer Shpigelman [Wed, 9 Jun 2021 07:17:49 +0000 (10:17 +0300)]
habanalabs: add hard reset timeout for PLDM

Hard reset flow on PLDM might take more than 2 minutes.
Hence add a dedicated hard reset timeout of 6 minutes for PLDM.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: enable dram scramble before linux f/w
Bharat Jauhari [Fri, 28 May 2021 10:14:34 +0000 (13:14 +0300)]
habanalabs: enable dram scramble before linux f/w

In current code, for dynamic f/w loading flow, DRAM scrambling is
enabled post Linux fit image is loaded to the card. This can cause the
device CPU to go into reset state.

The correct sequence should be:
1. Load boot fit image
2. Enable scrambling
3. Load Linux fit image

This commit aligns the DRAM scrambling enabling with the static f/w load
flow.

Signed-off-by: Bharat Jauhari <bjauhari@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: enable stop on error for all QMANs and engines
Ofir Bitton [Thu, 11 Feb 2021 09:09:12 +0000 (11:09 +0200)]
habanalabs: enable stop on error for all QMANs and engines

If there is an error in the QMAN/engine, there is no point of trying
to continue running the workload. It is better to stop to allow the
user to debug the program.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: report EQ fault during heartbeat
Ohad Sharabi [Sun, 6 Jun 2021 19:38:23 +0000 (22:38 +0300)]
habanalabs: report EQ fault during heartbeat

In case we have EQ fault we would like to know about it.
For this, a status bitmask was added in which EQ_FAULT bit is
set by FW in case of EQ fault.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: small code refactoring
Koby Elbaz [Thu, 3 Jun 2021 10:18:20 +0000 (13:18 +0300)]
habanalabs: small code refactoring

Use datatype defines instead of hard coded values,
and rename set_fixed_properties function.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: use standard error codes
Oded Gabbay [Sun, 6 Jun 2021 08:38:12 +0000 (11:38 +0300)]
habanalabs/gaudi: use standard error codes

When there is an ECC error in the HBM, return a standard error code,
-EIO in this case, and not a positive value.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: fix mask to obtain page offset
Ohad Sharabi [Wed, 2 Jun 2021 21:24:32 +0000 (00:24 +0300)]
habanalabs: fix mask to obtain page offset

When converting virtual address to physical we need to add correct
offset to the physical page.

For this we need to use mask that include ALL bits of page offset.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: skip valid test for boot_dev_sts regs
Ohad Sharabi [Sat, 29 May 2021 20:26:10 +0000 (23:26 +0300)]
habanalabs: skip valid test for boot_dev_sts regs

Get rid of the need to check if boot_dev_sts is valid on every access
to value read from these registers.

This is done by storing the register value in hdev props ONLY if
register is enabled.

This way if register is NOT enabled all capability bits will not be set.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: reset device upon FD close if not idle
Ofir Bitton [Thu, 20 May 2021 10:30:31 +0000 (13:30 +0300)]
habanalabs: reset device upon FD close if not idle

If device is not idle after user closes the FD we must reset device
as next user that will try to open FD will encounter a non-functional
device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: add debug flag to prevent failure on timeout
Yuri Nudelman [Tue, 25 May 2021 11:49:52 +0000 (14:49 +0300)]
habanalabs: add debug flag to prevent failure on timeout

Sometimes it is useful to allow the command to continue running despite
the timeout occurred, to differentiate between really stuck or just very
time consuming commands. This can be achieved by passing a new debug
flag alongside the cs, HL_CS_FLAGS_SKIP_RESET_ON_TIMEOUT.

Anyway, if the timeout occurred, a warning print shall be issued,
however this shall not fail the submission.

Signed-off-by: Yuri Nudelman <ynudelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: add FW alive event support
Ofir Bitton [Wed, 2 Jun 2021 08:56:31 +0000 (11:56 +0300)]
habanalabs/gaudi: add FW alive event support

In order for driver to be aware of process or thread crashes inside
GAUDI's CPU, we introduce a new event which contains all relevant
information. Upon event reception, driver will dump information and
will reset the device.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: don't use disabled ports in collective wait
Ofir Bitton [Mon, 24 May 2021 19:58:44 +0000 (22:58 +0300)]
habanalabs/gaudi: don't use disabled ports in collective wait

In the collective wait, we put jobs on the QMANs of all the NICs. The
code takes into account if a port is disabled only in case of PCI card.
When this info arrives from the f/w, the code doesn't take it into
account, and it tries to schedule jobs on NICs that aren't enabled and
thats a bug.

To fix this, after the f/w sends us the list of disabled ports, we
update the state of the QMANs according to that list. In addition,
we need to update the HW_CAP bits so the collective wait operation
will not try to use those QMANs. We also need to update the collective
master monitor mask.

Moreover, we need to add a protection for such future cases and in case
the user will try to submit work to those QMANs.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: update to latest f/w specs
Oded Gabbay [Mon, 31 May 2021 14:01:43 +0000 (17:01 +0300)]
habanalabs/gaudi: update to latest f/w specs

Update the firmware interface files to their latest version.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: split host irq interfaces towards FW
Ofir Bitton [Tue, 25 May 2021 19:09:13 +0000 (22:09 +0300)]
habanalabs/gaudi: split host irq interfaces towards FW

Current implementation uses a single interrupt interface towards
FW, this interface is causing races between interrupt types.
We split this interface to interface per interrupt type.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: prefer ASYNC device probing
Oded Gabbay [Wed, 26 May 2021 08:14:21 +0000 (11:14 +0300)]
habanalabs: prefer ASYNC device probing

There is no dependency when probing multiple devices so indicate to the
kernel that it can probe our devices in ASYNC fashion.

This shortens insmod of the driver from ~2 minutes to 20 seconds on
a system with 8 devices.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: add ARB to QM stop on error masks
Tomer Tayar [Mon, 24 May 2021 19:35:06 +0000 (22:35 +0300)]
habanalabs/gaudi: add ARB to QM stop on error masks

Update the QM stop on error masks to also stop on ARB errors.

Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: don't use nic_ports_mask in compute
Oded Gabbay [Tue, 25 May 2021 18:35:13 +0000 (21:35 +0300)]
habanalabs/gaudi: don't use nic_ports_mask in compute

nic_ports_mask is used by the networking part of the driver.
In the compute part, we use the HW_CAP bits to select what is active
and what is not.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: set the correct cpu_id on MME2_QM failure
Koby Elbaz [Wed, 19 May 2021 12:16:52 +0000 (15:16 +0300)]
habanalabs/gaudi: set the correct cpu_id on MME2_QM failure

This fix was applied since there was an incorrect reported CPU ID to GIC
such that an error in MME2 QMAN aliased to be an arriving from DMA0_QM.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: refactor reset code
Oded Gabbay [Sun, 23 May 2021 16:00:49 +0000 (19:00 +0300)]
habanalabs/gaudi: refactor reset code

After all the latest changes to the reset code, there were some
redundancy and errors in the flows.

If the Linux FIT is loaded to the ASIC CPU, we need to communicate
with it only via GIC. If it is not loaded, we need to either use
COMMS protocol (for newer f/w) or MSG_TO_CPU register (for older f/w).

In addition, if we halted the device CPU then we need to mark that
the driver will do the reset, regardless of the capabilities.

Also, to prevent false errors, we need to keep track whether the
device CPU was already halted. If so, we shouldn't try to halt it
again.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: track security status using positive logic
Ohad Sharabi [Thu, 20 May 2021 06:09:03 +0000 (09:09 +0300)]
habanalabs: track security status using positive logic

Using negative logic (i.e. fw_security_disabled) is confusing.

Modify the flag to use positive logic (fw_security_enabled).

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: use COMMS to reset device / halt CPU
Koby Elbaz [Thu, 20 May 2021 09:45:58 +0000 (12:45 +0300)]
habanalabs/gaudi: use COMMS to reset device / halt CPU

This is needed because legacy FW 'communication' protocol will soon
become obsolete.
Because COMMS is a boot protocol, communicating through it is supported
only until Linux is loaded to the device CPU, where in that case we
will fallback to the former implementation.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: disable GIC usage if security is enabled
Koby Elbaz [Tue, 18 May 2021 12:43:47 +0000 (15:43 +0300)]
habanalabs/gaudi: disable GIC usage if security is enabled

Security is set based on PCI ID, and after reading preboot status bits.
GIC usage is set in both scenarios since GIC can't be used when security
is enabled.
Moreover, writing to GIC/SP is enabled only after Linux is fully loaded.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: read preboot status bits in an earlier stage
Koby Elbaz [Tue, 18 May 2021 12:05:35 +0000 (15:05 +0300)]
habanalabs: read preboot status bits in an earlier stage

On newer releases, host won't be able to trigger an interrupt directly
to the ASIC GIC controller.
To be able to decide whether GIC can/not be used, we must read device's
preboot status bits in a stage that precedes the possible first use of
GIC (when device is in dirty state).

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: check running index in eqe control
Oded Gabbay [Wed, 19 May 2021 11:52:14 +0000 (14:52 +0300)]
habanalabs: check running index in eqe control

To harden the event queue mechanism, we add a running index to the
control header of the entry.

The firmware writes the index in each entry and the driver verifies
that the index of the current entry is larger by 1 of the index of
the previous entry.

In case it isn't, the driver will treat the entry as if it wasn't
valid (it won't process it but won't skip it).

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: set memory scrubbing to disabled by default
Oded Gabbay [Wed, 12 May 2021 17:46:12 +0000 (20:46 +0300)]
habanalabs: set memory scrubbing to disabled by default

Scrubbing memory after every unmap is very costly in terms of
performance. If a user wants it he can enable it but the default
should prioritize performance.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: do not move HBM bar if iATU done by FW
Ofir Bitton [Wed, 12 May 2021 06:07:39 +0000 (09:07 +0300)]
habanalabs/gaudi: do not move HBM bar if iATU done by FW

As iATU configuration is done by FW, driver should not try and
move HBM bar.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: read GIC sts after FW is loaded
Koby Elbaz [Wed, 12 May 2021 15:05:46 +0000 (18:05 +0300)]
habanalabs/gaudi: read GIC sts after FW is loaded

Reading of GIC privileged status will be done after F/W is loaded,
because privileged GIC capability is only available with the correct
ARMCP version, and after it's loaded.
Such versions necessarily support COMMS, so GIC alternatives (SP regs)
will be read directly from dynamic regs.

As well, initiation of DMA QMANs will occur after F/W is loaded
since it depends on GIC configuration.

In case F/W isn't loaded there's no problem since either way
there won't be any GIC IRQ handling.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: check if asic secured with asic type
Ohad Sharabi [Tue, 11 May 2021 13:02:41 +0000 (16:02 +0300)]
habanalabs: check if asic secured with asic type

Fix issue in which the input to the function is_asic_secured was device
PCI_IDS number instead of the asic_type enumeration.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: send hard reset cause to preboot
Koby Elbaz [Tue, 4 May 2021 17:10:47 +0000 (20:10 +0300)]
habanalabs/gaudi: send hard reset cause to preboot

LKD should provide hard reset cause to preboot prior to
loading any FW components (in case needed).
Current implementation is based on the new FW 'COMMS' protocol
In cased 'COMMS' is disabled - reset cause won't be sent.
Currently, only 2 reset causes are shared: HEARTBEAT & TDR.

Sending the reset cause will provide the missing watchdog
info that the firmware needs to provide to the BMC.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: notify before f/w loading
Oded Gabbay [Sun, 9 May 2021 06:49:36 +0000 (09:49 +0300)]
habanalabs: notify before f/w loading

An information print notifying on starting to load the f/w was removed
by mistake when moving to the new dynamic f/w loading mechanism.

Restore that print as the F/W loading usually takes between 10 to 20
seconds and this print helps the user know the status of the driver
load.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: use scratchpad regs instead of GIC controller
Koby Elbaz [Mon, 3 May 2021 20:03:15 +0000 (23:03 +0300)]
habanalabs/gaudi: use scratchpad regs instead of GIC controller

Due to new security restrictions, GIC controller can no
longer be accessed from user/kernel.
To monitor that, a new status bit will be read from preboot
caps, indicating whether direct access to GIC is blocked.

In case it is blocked, driver will use scratchpad registers
instead of using GIC interface on two main scenarios:
The first of which LKD triggers interrupts to F/W through GIC,
and the second of when LKD configures all engines/QMANs
to write to GIC when they want to report an error.

From F/W perspective, it will poll on all SPs, and once IRQ
number is retrieved, SP register is cleared, and it will perform the
write to the GIC to trigger the IRQ handler.

Signed-off-by: Koby Elbaz <kelbaz@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: read f/w's 2-nd sts and err registers
Ohad Sharabi [Sun, 2 May 2021 12:45:21 +0000 (15:45 +0300)]
habanalabs: read f/w's 2-nd sts and err registers

Maintain both STS1 and ERR1 registers used for status communication
with F/W.
Those are not maintained as we currently have less than 31
statuses/error defined and so LKD did not refer to those register.
The reason to read them now is to try to support future f/w versions
with current driver.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: avoid using uninitialized pointer
Ohad Sharabi [Mon, 3 May 2021 06:44:22 +0000 (09:44 +0300)]
habanalabs: avoid using uninitialized pointer

When attempting to read FW component's version we should break if input
FW component is invalid in order to avoid using uninitialized
destination pointer.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: set dma mask from fw once fw done iatu config
Ohad Sharabi [Sun, 2 May 2021 06:56:51 +0000 (09:56 +0300)]
habanalabs: set dma mask from fw once fw done iatu config

When setting "DMA mask from FW" we are reading PSOC_GLOBAL_CONF register
which is allowed only once FW has done it's iATU configuration.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: better error print for pin failure
Oded Gabbay [Sun, 2 May 2021 09:28:48 +0000 (12:28 +0300)]
habanalabs: better error print for pin failure

Print the user given pointer and error code on failure to get user
pages for easier debugging.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: add missing space after casting
Omer Shpigelman [Thu, 29 Apr 2021 19:29:29 +0000 (22:29 +0300)]
habanalabs: add missing space after casting

Change casting code according to kernel coding style.

Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: ignore device unusable status
Oded Gabbay [Thu, 29 Apr 2021 13:50:05 +0000 (16:50 +0300)]
habanalabs: ignore device unusable status

Some users might want to implement their own policy of when the device
is unusable so we need to ignore this status in the driver and continue
loading as normal.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: load linux image to device
Ohad Sharabi [Thu, 22 Apr 2021 07:01:22 +0000 (10:01 +0300)]
habanalabs: load linux image to device

Implementing dynamic linux image load to the device.
This patch also implements the FW communication steps during the
boot-fit.
This patch also enables the dynamic protocol based on the compatibility
flag.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: load boot fit to device
Ohad Sharabi [Sun, 11 Apr 2021 07:32:18 +0000 (10:32 +0300)]
habanalabs: load boot fit to device

Implementing dynamic boot fit image load to the device.
Note that some necessary adjustment were added to the static loader as
well so that both loaders can co-exist.
as this is not the final FW load stage the dynamic FW load is still
forced to be non functional.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: use dev_dbg upon hint address failure
Oded Gabbay [Mon, 26 Apr 2021 15:32:25 +0000 (18:32 +0300)]
habanalabs: use dev_dbg upon hint address failure

Hint address failure that results in a valid mapping with an address
that was allocated by the driver is not a real failure.

Therefore, the driver shouldn't notify about this in kernel log. The
user is responsible to check the returned address.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: modify progress status messages
Guy Nisan [Wed, 7 Apr 2021 15:31:29 +0000 (18:31 +0300)]
habanalabs: modify progress status messages

Indicate "progress" instead of "error" when reporting progress status.

Change "u-boot stopped by user" to "Cannot boot" message as
CPU_BOOT_STATUS_UBOOT_NOT_READY may indicate a fatal error that prevent
u-boot from loading firmware.

Signed-off-by: Guy Nisan <gnisan@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: give FW a grace time for configuring iATU
Ofir Bitton [Tue, 20 Apr 2021 07:15:25 +0000 (10:15 +0300)]
habanalabs: give FW a grace time for configuring iATU

iATU (internal Address Translation Unit of the PCI controller)
configuration is being done by FW right after driver enables
the PCI device. Hence, driver must add a minor sleep afterwards
in order to make sure FW finishes configuring iATU regions.

Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: update to latest f/w headers
Oded Gabbay [Fri, 23 Apr 2021 12:57:39 +0000 (15:57 +0300)]
habanalabs: update to latest f/w headers

Update the common and GAUDI firmware header files to the latest version.

The latest version use the correct endianness types so this commit also
contains minor changes to the code to use the correct conversions when
reading/writing to the firmware structures.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: expose ASIC specific PCI info to common code
Ohad Sharabi [Wed, 21 Apr 2021 10:03:21 +0000 (13:03 +0300)]
habanalabs: expose ASIC specific PCI info to common code

LKD has interfaces in which it receives device address.
For instance the debugfs_read/write variants receives device address for
CFG/SRAM/DRAM for read/write and need to translate to the mapped PCI BAR
address.

In addition, the dynamic FW load protocol dictates that the address to
which the LKD will copy the image for the next FW component will be
received as a device address and can be placed either in SRAM or DRAM.

We need to distinguish those regions as the access methods to those
regions are different (in DRAM we possibly need to set the BAR base).

Looking forward this code will be used to remove duplicated code in the
debugfs_read/write that search the memory region for the input device
address.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: dynamic fw load reset protocol
Ohad Sharabi [Thu, 8 Apr 2021 10:42:00 +0000 (13:42 +0300)]
habanalabs: dynamic fw load reset protocol

First stage of the dynamic FW load protocol is to reset the protocol to
avoid residues from former load cycles.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: use common fw_version read
Ohad Sharabi [Sun, 11 Apr 2021 12:26:28 +0000 (15:26 +0300)]
habanalabs: use common fw_version read

Instead of using multiple ASIC specific copies of functions to read the
FW version use single common one that gets ASIC specific arguments.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: use mmu cache range invalidation
Alon Mizrahi [Thu, 8 Apr 2021 12:30:59 +0000 (15:30 +0300)]
habanalabs: use mmu cache range invalidation

Use mmu cache range invalidation instead of entire cache invalidation
because it yields better performance.

In GOYA and GAUDI, always use entire cache invalidation because these
ASICs don't support range invalidation.

Signed-off-by: Alon Mizrahi <amizrahi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: refactor init device cpu code
Ohad Sharabi [Sun, 11 Apr 2021 20:06:46 +0000 (23:06 +0300)]
habanalabs: refactor init device cpu code

Replace multiple arguments to init device CPU function by passing
firmware loader managing structure that is initialized per ASIC with
the loader parameters.

In addition, the FW loader management structure is now part of the
habanalabs device, this way the loader parameters will be able to be
communicated across various boot stages.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: request f/w in separate function
Ohad Sharabi [Thu, 8 Apr 2021 07:22:17 +0000 (10:22 +0300)]
habanalabs: request f/w in separate function

This refactor is needed due to the dynamic FW load in which requesting
the FW file (and getting its attributes) is not immediately followed by
copying FW file content.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: prepare preboot stage to dynamic f/w load
Ohad Sharabi [Thu, 25 Mar 2021 08:06:26 +0000 (10:06 +0200)]
habanalabs: prepare preboot stage to dynamic f/w load

Start the skeleton for the dynamic F/W load by marking current preboot
code path as legacy.

Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: update firmware files to latest
Oded Gabbay [Sun, 11 Apr 2021 05:43:50 +0000 (08:43 +0300)]
habanalabs: update firmware files to latest

Update the firmware files to the latest from the firmware team.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: increase ELBI reset timeout for PLDM
Moti Haimovski [Thu, 8 Apr 2021 18:18:03 +0000 (21:18 +0300)]
habanalabs: increase ELBI reset timeout for PLDM

On PLDM, in case of NIC hangs, the ELBI reset to take much longer than
expected. As a result an increase in the ELBI reset timeout is required.

Signed-off-by: Moti Haimovski <mhaimovski@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agobus: fsl-mc: mc-io: Correct misdocumentation of 'dpmcp_dev' param
Lee Jones [Thu, 17 Jun 2021 11:05:00 +0000 (12:05 +0100)]
bus: fsl-mc: mc-io: Correct misdocumentation of 'dpmcp_dev' param

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/mc-io.c:70: warning: Function parameter or member 'dpmcp_dev' not described in 'fsl_create_mc_io'

Cc: Stuart Yoder <stuyoder@gmail.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-8-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc-msi: Fix a little doc-rot pertaining to 'np' to 'fwnode' conversion
Lee Jones [Thu, 17 Jun 2021 11:04:59 +0000 (12:04 +0100)]
bus: fsl-mc-msi: Fix a little doc-rot pertaining to 'np' to 'fwnode' conversion

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/fsl-mc-msi.c:164: warning: Function parameter or member 'fwnode' not described in 'fsl_mc_msi_create_irq_domain'
 drivers/bus/fsl-mc/fsl-mc-msi.c:164: warning: Excess function parameter 'np' description in 'fsl_mc_msi_create_irq_domain'

Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: German Rivera <German.Rivera@freescale.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-7-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: fsl-mc-allocator: Fix misspelling of 'new_mc_adev' and demote non-kernel...
Lee Jones [Thu, 17 Jun 2021 11:04:58 +0000 (12:04 +0100)]
bus: fsl-mc: fsl-mc-allocator: Fix misspelling of 'new_mc_adev' and demote non-kernel-doc headers

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/fsl-mc-allocator.c:271: warning: Function parameter or member 'new_mc_adev' not described in 'fsl_mc_object_allocate'
 drivers/bus/fsl-mc/fsl-mc-allocator.c:271: warning: Excess function parameter 'new_mc_dev' description in 'fsl_mc_object_allocate'
 drivers/bus/fsl-mc/fsl-mc-allocator.c:417: warning: Function parameter or member 'mc_bus_dev' not described in 'fsl_mc_cleanup_irq_pool'
 drivers/bus/fsl-mc/fsl-mc-allocator.c:417: warning: expecting prototype for Teardown the interrupt pool associated with an fsl(). Prototype was for fsl_mc_cleanup_irq_pool() instead
 drivers/bus/fsl-mc/fsl-mc-allocator.c:443: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocate_irqs'
 drivers/bus/fsl-mc/fsl-mc-allocator.c:443: warning: expecting prototype for Allocate the IRQs required by a given fsl(). Prototype was for fsl_mc_allocate_irqs() instead
 drivers/bus/fsl-mc/fsl-mc-allocator.c:586: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocator_probe'
 drivers/bus/fsl-mc/fsl-mc-allocator.c:618: warning: Function parameter or member 'mc_dev' not described in 'fsl_mc_allocator_remove'

Cc: Stuart Yoder <stuyoder@gmail.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-6-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: dprc-driver: Fix some missing/incorrect function parameter descriptions
Lee Jones [Thu, 17 Jun 2021 11:04:57 +0000 (12:04 +0100)]
bus: fsl-mc: dprc-driver: Fix some missing/incorrect function parameter descriptions

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/dprc-driver.c:360: warning: Function parameter or member 'alloc_interrupts' not described in 'dprc_scan_container'
 drivers/bus/fsl-mc/dprc-driver.c:383: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler'
 drivers/bus/fsl-mc/dprc-driver.c:383: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler'
 drivers/bus/fsl-mc/dprc-driver.c:394: warning: Function parameter or member 'irq_num' not described in 'dprc_irq0_handler_thread'
 drivers/bus/fsl-mc/dprc-driver.c:394: warning: Excess function parameter 'irq' description in 'dprc_irq0_handler_thread'

Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: German Rivera <German.Rivera@freescale.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-5-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: dprc: Fix a couple of misspelling and formatting issues
Lee Jones [Thu, 17 Jun 2021 11:04:56 +0000 (12:04 +0100)]
bus: fsl-mc: dprc: Fix a couple of misspelling and formatting issues

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/dprc.c:345: warning: Function parameter or member 'attr' not described in 'dprc_get_attributes'
 drivers/bus/fsl-mc/dprc.c:521: warning: Function parameter or member 'obj_type' not described in 'dprc_get_obj_region'

Cc: Stuart Yoder <stuyoder@gmail.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-4-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: fsl-mc-bus: Demote a bunch of non-conformant kernel-doc headers and...
Lee Jones [Thu, 17 Jun 2021 11:04:55 +0000 (12:04 +0100)]
bus: fsl-mc: fsl-mc-bus: Demote a bunch of non-conformant kernel-doc headers and help others

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/fsl-mc-bus.c:30: warning: expecting prototype for Default DMA mask for devices on a fsl(). Prototype was for FSL_MC_DEFAULT_DMA_MASK() instead
 drivers/bus/fsl-mc/fsl-mc-bus.c:45: warning: Function parameter or member 'fsl_mc_regs' not described in 'fsl_mc'
 drivers/bus/fsl-mc/fsl-mc-bus.c:124: warning: Function parameter or member 'dev' not described in 'fsl_mc_bus_uevent'
 drivers/bus/fsl-mc/fsl-mc-bus.c:124: warning: Function parameter or member 'env' not described in 'fsl_mc_bus_uevent'
 drivers/bus/fsl-mc/fsl-mc-bus.c:480: warning: Function parameter or member 'mc_driver' not described in '__fsl_mc_driver_register'
 drivers/bus/fsl-mc/fsl-mc-bus.c:480: warning: Function parameter or member 'owner' not described in '__fsl_mc_driver_register'
 drivers/bus/fsl-mc/fsl-mc-bus.c:511: warning: Function parameter or member 'mc_driver' not described in 'fsl_mc_driver_unregister'
 drivers/bus/fsl-mc/fsl-mc-bus.c:571: warning: Function parameter or member 'dev' not described in 'fsl_mc_get_root_dprc'
 drivers/bus/fsl-mc/fsl-mc-bus.c:571: warning: Function parameter or member 'root_dprc_dev' not described in 'fsl_mc_get_root_dprc'
 drivers/bus/fsl-mc/fsl-mc-bus.c:739: warning: Function parameter or member 'dev' not described in 'fsl_mc_is_root_dprc'
 drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'obj_desc' not described in 'fsl_mc_device_add'
 drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'mc_io' not described in 'fsl_mc_device_add'
 drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'parent_dev' not described in 'fsl_mc_device_add'
 drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: Function parameter or member 'new_mc_dev' not described in 'fsl_mc_device_add'
 drivers/bus/fsl-mc/fsl-mc-bus.c:767: warning: expecting prototype for Add a newly discovered fsl(). Prototype was for fsl_mc_device_add() instead
 drivers/bus/fsl-mc/fsl-mc-bus.c:1066: warning: Function parameter or member 'pdev' not described in 'fsl_mc_bus_probe'
 drivers/bus/fsl-mc/fsl-mc-bus.c:1190: warning: Function parameter or member 'pdev' not described in 'fsl_mc_bus_remove'

Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: German Rivera <German.Rivera@freescale.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-3-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: mc-sys: Supply missing function names in kernel-doc headers
Lee Jones [Thu, 17 Jun 2021 11:04:54 +0000 (12:04 +0100)]
bus: fsl-mc: mc-sys: Supply missing function names in kernel-doc headers

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/mc-sys.c:20: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/bus/fsl-mc/mc-sys.c:151: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/bus/fsl-mc/mc-sys.c:197: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/bus/fsl-mc/mc-sys.c:237: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Cc: Stuart Yoder <stuyoder@gmail.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-2-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agobus: fsl-mc: mc-io: Supply function names for 'fsl_create_mc_io()' and 'fsl_destroy_m...
Lee Jones [Thu, 17 Jun 2021 11:04:53 +0000 (12:04 +0100)]
bus: fsl-mc: mc-io: Supply function names for 'fsl_create_mc_io()' and 'fsl_destroy_mc_io()'

Fixes the following W=1 kernel build warning(s):

 drivers/bus/fsl-mc/mc-io.c:53: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
 drivers/bus/fsl-mc/mc-io.c:126: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst

Cc: Stuart Yoder <stuyoder@gmail.com>
Reviewed-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Link: https://lore.kernel.org/r/20210617110500.15907-1-lee.jones@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agomcb: Remove trailing semicolon in macros
Huilong Deng [Tue, 15 Jun 2021 14:55:30 +0000 (23:55 +0900)]
mcb: Remove trailing semicolon in macros

Macros should not use a trailing semicolon.

Signed-off-by: Huilong Deng <denghuilong@cdjrlc.com>
Signed-off-by: Johannes Thumshirn <jth@kernel.org>
Link: https://lore.kernel.org/r/fe520620eeddaa2ed8c669125f9b673c89d6b5a5.1623768541.git.johannes.thumshirn@wdc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agomei: hdcp: SPDX tag should be the first line
Tom Rix [Thu, 10 Jun 2021 21:44:33 +0000 (14:44 -0700)]
mei: hdcp: SPDX tag should be the first line

checkpatch looks for the tag on the first line.
So delete empty first line

Signed-off-by: Tom Rix <trix@redhat.com>
Link: https://lore.kernel.org/r/20210610214438.3161140-4-trix@redhat.com
Acked-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agofirewire: nosy: switch from 'pci_' to 'dma_' API
Christophe JAILLET [Sun, 13 Jun 2021 13:27:43 +0000 (15:27 +0200)]
firewire: nosy: switch from 'pci_' to 'dma_' API

The wrappers in include/linux/pci-dma-compat.h should go away.

The patch has been generated with the coccinelle script below and has been
hand modified to replace GFP_ with a correct flag.
It has been compile tested.

When memory is allocated in 'add_card()', GFP_KERNEL can be used because
this flag is already used a few lines above and no lock is taken in the
between.

While at it, also remove some useless casting.

@@ @@
-    PCI_DMA_BIDIRECTIONAL
+    DMA_BIDIRECTIONAL

@@ @@
-    PCI_DMA_TODEVICE
+    DMA_TO_DEVICE

@@ @@
-    PCI_DMA_FROMDEVICE
+    DMA_FROM_DEVICE

@@ @@
-    PCI_DMA_NONE
+    DMA_NONE

@@
expression e1, e2, e3;
@@
-    pci_alloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3;
@@
-    pci_zalloc_consistent(e1, e2, e3)
+    dma_alloc_coherent(&e1->dev, e2, e3, GFP_)

@@
expression e1, e2, e3, e4;
@@
-    pci_free_consistent(e1, e2, e3, e4)
+    dma_free_coherent(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_single(e1, e2, e3, e4)
+    dma_map_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_single(e1, e2, e3, e4)
+    dma_unmap_single(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4, e5;
@@
-    pci_map_page(e1, e2, e3, e4, e5)
+    dma_map_page(&e1->dev, e2, e3, e4, e5)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_page(e1, e2, e3, e4)
+    dma_unmap_page(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_map_sg(e1, e2, e3, e4)
+    dma_map_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_unmap_sg(e1, e2, e3, e4)
+    dma_unmap_sg(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_cpu(e1, e2, e3, e4)
+    dma_sync_single_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_single_for_device(e1, e2, e3, e4)
+    dma_sync_single_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_cpu(e1, e2, e3, e4)
+    dma_sync_sg_for_cpu(&e1->dev, e2, e3, e4)

@@
expression e1, e2, e3, e4;
@@
-    pci_dma_sync_sg_for_device(e1, e2, e3, e4)
+    dma_sync_sg_for_device(&e1->dev, e2, e3, e4)

@@
expression e1, e2;
@@
-    pci_dma_mapping_error(e1, e2)
+    dma_mapping_error(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_dma_mask(e1, e2)
+    dma_set_mask(&e1->dev, e2)

@@
expression e1, e2;
@@
-    pci_set_consistent_dma_mask(e1, e2)
+    dma_set_coherent_mask(&e1->dev, e2)

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/e1d7fa558f31abf294659a9d4edcc1e4fc065fab.1623590706.git.christophe.jaillet@wanadoo.fr
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoaccessibility: braille: braille_console: fix whitespace style issues
Clayton Casciato [Sun, 13 Jun 2021 20:30:32 +0000 (14:30 -0600)]
accessibility: braille: braille_console: fix whitespace style issues

Fixed a coding style issue.

Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Signed-off-by: Clayton Casciato <majortomtosourcecontrol@gmail.com>
Link: https://lore.kernel.org/r/20210613203031.23721-1-majortomtosourcecontrol@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agospeakup: Separate out translations for bright colors names
Samuel Thibault [Sun, 13 Jun 2021 19:59:09 +0000 (21:59 +0200)]
speakup: Separate out translations for bright colors names

The existing code was assuming that bright color names can be forged by just
prepending the "bright" word to the color name. But some langages may rather
append it, or require completely different names ("grey" is actually already an
example).

From: Trevor Astrope <astrope@tabbweb.com>
Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Link: https://lore.kernel.org/r/20210613195909.n7ssor6iqeo3pcno@begin
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: Propagate symlink failure
Jeremy Linton [Mon, 14 Jun 2021 17:59:01 +0000 (11:59 -0600)]
coresight: Propagate symlink failure

If the symlink is unable to be created, the driver goes
ahead and continues device creation. Instead lets propagate
the failure, and fail the probe.

Link: https://lore.kernel.org/r/20210526204042.2681700-1-jeremy.linton@arm.com
Fixes: 8a7365c2d418 ("coresight: Expose device connections via sysfs")
Cc: stable@vger.kernel.org
Signed-off-by: Jeremy Linton <jeremy.linton@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-7-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()
Sai Prakash Ranjan [Mon, 14 Jun 2021 17:59:00 +0000 (11:59 -0600)]
coresight: tmc-etf: Fix global-out-of-bounds in tmc_update_etf_buffer()

commit 6f755e85c332 ("coresight: Add helper for inserting synchronization
packets") removed trailing '\0' from barrier_pkt array and updated the
call sites like etb_update_buffer() to have proper checks for barrier_pkt
size before read but missed updating tmc_update_etf_buffer() which still
reads barrier_pkt past the array size resulting in KASAN out-of-bounds
bug. Fix this by adding a check for barrier_pkt size before accessing
like it is done in etb_update_buffer().

 BUG: KASAN: global-out-of-bounds in tmc_update_etf_buffer+0x4b8/0x698
 Read of size 4 at addr ffffffd05b7d1030 by task perf/2629

 Call trace:
  dump_backtrace+0x0/0x27c
  show_stack+0x20/0x2c
  dump_stack+0x11c/0x188
  print_address_description+0x3c/0x4a4
  __kasan_report+0x140/0x164
  kasan_report+0x10/0x18
  __asan_report_load4_noabort+0x1c/0x24
  tmc_update_etf_buffer+0x4b8/0x698
  etm_event_stop+0x248/0x2d8
  etm_event_del+0x20/0x2c
  event_sched_out+0x214/0x6f0
  group_sched_out+0xd0/0x270
  ctx_sched_out+0x2ec/0x518
  __perf_event_task_sched_out+0x4fc/0xe6c
  __schedule+0x1094/0x16a0
  preempt_schedule_irq+0x88/0x170
  arm64_preempt_schedule_irq+0xf0/0x18c
  el1_irq+0xe8/0x180
  perf_event_exec+0x4d8/0x56c
  setup_new_exec+0x204/0x400
  load_elf_binary+0x72c/0x18c0
  search_binary_handler+0x13c/0x420
  load_script+0x500/0x6c4
  search_binary_handler+0x13c/0x420
  exec_binprm+0x118/0x654
  __do_execve_file+0x77c/0xba4
  __arm64_compat_sys_execve+0x98/0xac
  el0_svc_common+0x1f8/0x5e0
  el0_svc_compat_handler+0x84/0xb0
  el0_svc_compat+0x10/0x50

 The buggy address belongs to the variable:
  barrier_pkt+0x10/0x40

 Memory state around the buggy address:
  ffffffd05b7d0f00: fa fa fa fa 04 fa fa fa fa fa fa fa 00 00 00 00
  ffffffd05b7d0f80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 >ffffffd05b7d1000: 00 00 00 00 00 00 fa fa fa fa fa fa 00 00 00 03
                                      ^
  ffffffd05b7d1080: fa fa fa fa 00 02 fa fa fa fa fa fa 03 fa fa fa
  ffffffd05b7d1100: fa fa fa fa 00 00 00 00 05 fa fa fa fa fa fa fa
 ==================================================================

Link: https://lore.kernel.org/r/20210505093430.18445-1-saiprakash.ranjan@codeaurora.org
Fixes: 0c3fc4d5fa26 ("coresight: Add barrier packet for synchronisation")
Cc: stable@vger.kernel.org
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: core: Remove redundant check of attr
Junhao He [Mon, 14 Jun 2021 17:58:59 +0000 (11:58 -0600)]
coresight: etm4x: core: Remove redundant check of attr

"attr" is checked by perf framework, so remove the redundant check in
etm4_parse_event_config().

Link: https://lore.kernel.org/r/1620912469-52222-4-git-send-email-liuqi115@huawei.com
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-5-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: core: Remove unnecessary assignment
Junhao He [Mon, 14 Jun 2021 17:58:58 +0000 (11:58 -0600)]
coresight: core: Remove unnecessary assignment

Remove unnecessary assignment of "path" in coresight_release_path().

Link: https://lore.kernel.org/r/1620912469-52222-3-git-send-email-liuqi115@huawei.com
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-4-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: core: Fix use of uninitialized pointer
Junhao He [Mon, 14 Jun 2021 17:58:57 +0000 (11:58 -0600)]
coresight: core: Fix use of uninitialized pointer

Currently the pointer "sink" might be checked before initialized. Fix
this by initializing this pointer.

Link: https://lore.kernel.org/r/1620912469-52222-2-git-send-email-liuqi115@huawei.com
Fixes: 6d578258b955 ("coresight: Make sysfs functional on topologies with per core sink")
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: core: Switch to krealloc_array()
Andy Shevchenko [Mon, 14 Jun 2021 17:58:56 +0000 (11:58 -0600)]
coresight: core: Switch to krealloc_array()

Let the krealloc_array() check for multiplication overflow.

Link: https://lore.kernel.org/r/20210520135041.56163-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210614175901.532683-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agofpga: region: Rename dev to parent for parent device
Russ Weight [Mon, 14 Jun 2021 17:09:06 +0000 (10:09 -0700)]
fpga: region: Rename dev to parent for parent device

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-6-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agofpga: bridge: Rename dev to parent for parent device
Russ Weight [Mon, 14 Jun 2021 17:09:05 +0000 (10:09 -0700)]
fpga: bridge: Rename dev to parent for parent device

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-5-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agofpga: mgr: Rename dev to parent for parent device
Russ Weight [Mon, 14 Jun 2021 17:09:04 +0000 (10:09 -0700)]
fpga: mgr: Rename dev to parent for parent device

Rename variable "dev" to "parent" in cases where it represents the parent
device.

Signed-off-by: Russ Weight <russell.h.weight@intel.com>
Reviewed-by: Xu Yilun <yilun.xu@intel.com>
Signed-off-by: Moritz Fischer <mdf@kernel.org>
Link: https://lore.kernel.org/r/20210614170909.232415-4-mdf@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>