platform/kernel/linux-rpi.git
3 years agohabanalabs: mmu map wrapper for sizes larger than a page
Ofir Bitton [Thu, 22 Oct 2020 12:13:10 +0000 (15:13 +0300)]
habanalabs: mmu map wrapper for sizes larger than a page

We introduce a new wrapper which allows us to mmu map any size
to any host va_range available. In addition we remove duplicated
code from various places in driver and using this new wrapper
instead.
This wrapper supports mapping only contiguous physical
memory blocks and will be used for mappings that are done to the
driver ASID.

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: print CS type when it is stuck
Oded Gabbay [Mon, 16 Nov 2020 08:25:53 +0000 (10:25 +0200)]
habanalabs: print CS type when it is stuck

We have several types of command submissions and the user wants to know
which type of command submission has not finished in time when that
event occurs. This is very helpful for debug.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: align to new FW reset scheme
Ofir Bitton [Sun, 8 Nov 2020 10:59:04 +0000 (12:59 +0200)]
habanalabs/gaudi: align to new FW reset scheme

As part of the security effort in which FW will be handling
sensitive HW registers, hard reset flow will be done by FW
and will be triggered by driver.

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: firmware returns 64bit argument
Alon Mizrahi [Tue, 10 Nov 2020 11:49:10 +0000 (13:49 +0200)]
habanalabs: firmware returns 64bit argument

F/W message returns 64bit value but up until now we casted it to
a 32bit variable, instead of receiving 64bit in the first place.

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: fix MMU debugfs operations
Moti Haimovski [Tue, 27 Oct 2020 08:55:42 +0000 (10:55 +0200)]
habanalabs: fix MMU debugfs operations

After the MMU-code refactoring, the existing MMU debugfs operations
are no longer working so we need to fix them.
In addition, remove the duplicate code that was in the debugfs code
and use the already existing MMU-code.

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 agohabanalabs: share a single ctx-mutex between all MMUs
Moti Haimovski [Tue, 27 Oct 2020 09:03:32 +0000 (11:03 +0200)]
habanalabs: share a single ctx-mutex between all MMUs

Multiple locks are usually a source of problems, which in the MMU
case can be avoided since it is relatively rare that both MMU
tables are updated at the same time.

Therefore, use a single shared lock instead of two separate ones.

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 agohabanalabs: support reserving aligned va block
Ofir Bitton [Wed, 4 Nov 2020 13:18:55 +0000 (15:18 +0200)]
habanalabs: support reserving aligned va block

Add support for reserving va block with alignment different than
page size. This is a pre-requisite for allocations needed in future
ASICs

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 boot errors prints
Guy Nisan [Thu, 12 Nov 2020 15:52:52 +0000 (17:52 +0200)]
habanalabs: add boot errors prints

Add log prints for security and eFuse boot error bits

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: print message with correct device
Oded Gabbay [Tue, 10 Nov 2020 20:03:43 +0000 (22:03 +0200)]
habanalabs: print message with correct device

During hard-reset, the driver rejects further IOCTL calls and prints
an error message. That error message should be printed with the correct
device instead of using only the control device.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: fetch HBM ecc info from FW
Ofir Bitton [Mon, 5 Oct 2020 10:44:59 +0000 (13:44 +0300)]
habanalabs/gaudi: fetch HBM ecc info from FW

Once FW security is enabled there is no access to HBM ecc registers,
need to read values from FW using a dedicated interface.

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: fetch hard reset capability from FW
Ofir Bitton [Sun, 8 Nov 2020 11:10:09 +0000 (13:10 +0200)]
habanalabs: fetch hard reset capability from FW

Driver must fetch FW hard reset capability during boot time,
in order to skip the hard reset flow if necessary.

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: move asic property to correct structure
Oded Gabbay [Mon, 9 Nov 2020 07:48:31 +0000 (09:48 +0200)]
habanalabs: move asic property to correct structure

Whether an ASIC has MMU towards its DRAM is an ASIC property, so
move it to the asic fixed properties structure.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: use host va range for internal pools
Ofir Bitton [Thu, 22 Oct 2020 12:04:10 +0000 (15:04 +0300)]
habanalabs: use host va range for internal pools

Instead of using a dedicated va range for each internal pool,
we introduce a new way for reserving a va block from an existing
va range. This is a more generic way of reserving va blocks for
future use.

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: improve hard reset procedure
Ofir Bitton [Thu, 8 Oct 2020 07:27:42 +0000 (10:27 +0300)]
habanalabs: improve hard reset procedure

We want to handle the scenario in which the driver was not able
to kill all user processes due to many memory mappings.
We need to retry again after some period while releasing the cores.
The devices will be unusable and "in-reset" status during that time.

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: Rename hw_queues_mirror to cs_mirror
Tomer Tayar [Fri, 30 Oct 2020 09:16:23 +0000 (11:16 +0200)]
habanalabs: Rename hw_queues_mirror to cs_mirror

Future command submission types might be submitted to HW not via the
QMAN queues path. However, it would be still required to have the TDR
mechanism for these CS, and thus the patch renames the TDR fields and
replaces the hw_queues_ prefix with cs_.

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: refactor mmu va_range db structure
Ofir Bitton [Thu, 22 Oct 2020 08:05:55 +0000 (11:05 +0300)]
habanalabs: refactor mmu va_range db structure

Use an array of va_ranges instead of keeping each va_range separately,
we do this for better readability and in order to support access to
a specific range in a much elegant manner.

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: move HW dirty check to a proper location
Ofir Bitton [Mon, 19 Oct 2020 14:04:20 +0000 (17:04 +0300)]
habanalabs: move HW dirty check to a proper location

Driver must verify if HW is dirty before trying to fetch preboot
information. Hence, we move this validation to a prior stage of
the boot sequence.

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: restore vm_pgoff after mmap
Oded Gabbay [Thu, 29 Oct 2020 16:38:31 +0000 (18:38 +0200)]
habanalabs: restore vm_pgoff after mmap

Due to using dma_mmap_coherent() to perform mmap of dma memory, we
had to clear the vm_pgoff field before calling that function.

However, that broke the userspace (profiler tool) as they relied
on searching the /proc/self/maps for these values to correctly
"disassemble" the topology recipe.

To re-enable that functionality, the driver can simply restore the
value of vm_pgoff before returning to userspace but after calling
dma_mmap_coherent().

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: add 'needs reset' state in driver
Ofir Bitton [Mon, 5 Oct 2020 11:40:10 +0000 (14:40 +0300)]
habanalabs: add 'needs reset' state in driver

The new state indicates that device should be reset in order
to re-gain funcionality.
This unique state can occur if reset_on_lockup is disabled
and an actual lockup has occurred.

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: fix hard reset print and comment
Omer Shpigelman [Sat, 31 Oct 2020 20:03:55 +0000 (22:03 +0200)]
habanalabs: fix hard reset print and comment

One of the first steps of a hard reset flow is to close all open user
contexts. This user process teradown might take some time due to long
cleanup in our driver or some other reason even before our cleanup flow.
Hence fix the relevant print and comment to be more accurate.

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/gaudi: remove pcie_en strap toggle
Igor Grinberg [Thu, 29 Oct 2020 12:06:54 +0000 (14:06 +0200)]
habanalabs/gaudi: remove pcie_en strap toggle

Since the very large grace period is over and this functionality
prevents us to implement the new reset sequence and apply security
settings, we need to remove the code toggling the PCIE_EN bit in the
straps register.
Remove it for good.

Signed-off-by: Igor Grinberg <igrinberg@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: remove duplicate print
Oded Gabbay [Wed, 28 Oct 2020 19:05:20 +0000 (21:05 +0200)]
habanalabs: remove duplicate print

We print twice the firmware status regarding security, once in
common code and once in asic code. Remove the print in asic code
and leave the common code print.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: Separate CS job completion from its deallocation
Tomer Tayar [Mon, 10 Aug 2020 14:30:35 +0000 (17:30 +0300)]
habanalabs: Separate CS job completion from its deallocation

Current CS jobs are no longer needed after their completion.
However, jobs of future workload might be in use even after they are
completed. To allow that, the patch adds a refcount to the job object,
and decouples its completion handling from its deallocation.

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: increase MAX CS to 16K
Oded Gabbay [Tue, 27 Oct 2020 07:34:44 +0000 (09:34 +0200)]
habanalabs/gaudi: increase MAX CS to 16K

We need to have the MAX CS be much larger than the size of the
different queues. In GAUDI we have around 8 groups of queues, and each
group has 1K queue size. To prevent head-of-the-line blocking, we need
to make sure there is sufficient number of available CS allocations
even if one or more of those queues are full.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: reset device upon fw read failure
farah kassabri [Wed, 14 Oct 2020 12:17:36 +0000 (15:17 +0300)]
habanalabs: reset device upon fw read failure

failure in reading pre-boot verion is not handled correctly,
upon failure we need to reset the device in order to be able
to reinstall the driver.

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: Move repeatedly included headers to habanalabs.h
Tomer Tayar [Sun, 25 Oct 2020 15:47:22 +0000 (17:47 +0200)]
habanalabs: Move repeatedly included headers to habanalabs.h

Several header files are repeatedly included in many files.
Move these files to habanalabs.h which is included by all.

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: release signal if collective wait was dropped
Ofir Bitton [Sun, 25 Oct 2020 07:36:08 +0000 (09:36 +0200)]
habanalabs: release signal if collective wait was dropped

As in standard wait cs, we must release a signal fence once
a collective wait cs was dropped and not submitted.

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: Skip updating CI of internal queues if not in use
Tomer Tayar [Mon, 27 Jul 2020 21:28:51 +0000 (00:28 +0300)]
habanalabs: Skip updating CI of internal queues if not in use

There are no internal queues if H/W queues are being used.
In this case we can skip the redundant traversal over the queues array,
looking for internal queues.

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: Small refactoring of cs_do_release()
Tomer Tayar [Mon, 27 Jul 2020 20:49:41 +0000 (23:49 +0300)]
habanalabs: Small refactoring of cs_do_release()

Slightly refactor the cs_do_release() function, to reduce nesting level
and to ease the handling of future CS types.

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: Small refactoring of CS IOCTL handling
Tomer Tayar [Sun, 19 Jul 2020 18:07:15 +0000 (21:07 +0300)]
habanalabs: Small refactoring of CS IOCTL handling

Refactor the CS IOCTL handling by gathering common code into
sub-functions, in order to ease future additions of new CS types.

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: fetch PLL info from FW
Ofir Bitton [Mon, 5 Oct 2020 08:36:00 +0000 (11:36 +0300)]
habanalabs/gaudi: fetch PLL info from FW

Once FW security is enabled there is no access to PLL registers,
need to read values from FW using a dedicated interface.

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: refactor MMU to support dual residency MMU
Moti Haimovski [Mon, 5 Oct 2020 14:59:29 +0000 (17:59 +0300)]
habanalabs: refactor MMU to support dual residency MMU

This commit refactors the MMU code to support PCI MMU page tables
residing on host and DCORE MMU residing on the device DRAM at the
same time.

This is needed for future devices as on GAUDI and GOYA we have
a single MMU where its page tables always reside on DRAM.

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 agohabanalabs: fix MMU print message
Moti Haimovski [Mon, 5 Oct 2020 16:33:10 +0000 (19:33 +0300)]
habanalabs: fix MMU print message

This commit fixes an incorrect error message

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 agohabanalabs/gaudi: scrub all memory upon closing FD
farah kassabri [Wed, 6 May 2020 08:17:38 +0000 (11:17 +0300)]
habanalabs/gaudi: scrub all memory upon closing FD

In cases of multi-tenants, administrators may want to prevent data
leakage between users running on the same device one after another.

To do that the driver can scrub the internal memory (both SRAM and
DRAM) after a user finish to use the memory.

Because in GAUDI the driver allows only one application to use the
device at a time, it can scrub the memory when user app close FD.

In future devices where we have MMU on the DRAM, we can scrub the DRAM
memory with a finer granularity (page granularity) when the user
allocates the memory.

This feature is not supported in Goya.

To allow users that want to debug their applications, we add a kernel
module parameter to load the driver with this feature disabled.

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/gaudi: add support for FW security
Ofir Bitton [Sun, 4 Oct 2020 14:34:37 +0000 (17:34 +0300)]
habanalabs/gaudi: add support for FW security

Skip relevant HW configurations once FW security is enabled
because these configurations are being performed by FW.

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: fetch security indication from FW
Ofir Bitton [Sun, 4 Oct 2020 06:09:19 +0000 (09:09 +0300)]
habanalabs: fetch security indication from FW

Add support for fetching security indication from FW.
This indication is needed in order to skip unnecessary
initializations done by FW.

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: fix cs counters structure
farah kassabri [Mon, 12 Oct 2020 11:30:26 +0000 (14:30 +0300)]
habanalabs: fix cs counters structure

Fix cs counters structure in uapi to be one flat structure instead
of two instances of the same other structure.
use atomic read/increment for context counters so we could use
one structure for both aggregated and context counters.

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: advanced FW loading
Ofir Bitton [Tue, 20 Oct 2020 07:45:37 +0000 (10:45 +0300)]
habanalabs: advanced FW loading

Today driver is able to load a whole FW binary into a specific
location on ASIC. We add support for loading sections from the
same FW binary into different loactions.

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: initialize variable before use
Oded Gabbay [Tue, 20 Oct 2020 15:37:56 +0000 (18:37 +0300)]
habanalabs: initialize variable before use

GCC 7.3.1 20180303 (Red Hat 7.3.1-5) complains that collective_engine_id
might be used uninitialized.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: remove unreachable code
Ofir Bitton [Mon, 19 Oct 2020 13:52:00 +0000 (16:52 +0300)]
habanalabs/gaudi: remove unreachable code

Remove unreachable code in gaudi collective flow.

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: make sure cs type is valid in cs_ioctl_signal_wait
Oded Gabbay [Mon, 19 Oct 2020 06:06:18 +0000 (09:06 +0300)]
habanalabs: make sure cs type is valid in cs_ioctl_signal_wait

Although we get a valid cs type from the callee, in case new values
will be added in the future, it is best to check the expected values
in that function.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: monitor device memory usage
Oded Gabbay [Sun, 18 Oct 2020 12:32:23 +0000 (15:32 +0300)]
habanalabs/gaudi: monitor device memory usage

In GAUDI we don't have an MMU towards the HBM device memory. Therefore,
the user access that memory directly through physical address (via the
different engines) without the need to go through the driver to
allocate/free memory on the HBM.

For system monitoring purposes, the driver will keep track of the HBM
usage. This can be done as long as the user accurately reports the
allocations and releases of HBM memory, through the existing MEMORY
IOCTL uapi.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: sync stream collective support
Ofir Bitton [Thu, 10 Sep 2020 07:56:26 +0000 (10:56 +0300)]
habanalabs: sync stream collective support

Implement sync stream collective for GAUDI. Need to allocate additional
resources for that and add ctx_fini() to clean up those resources.

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: Set DMA5 QMAN internal
Ofir Bitton [Mon, 31 Aug 2020 05:52:56 +0000 (08:52 +0300)]
habanalabs/gaudi: Set DMA5 QMAN internal

DMA5 QMAN is designated to be used for reduction process, hence it will
be no longer configured as external queue.

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: sync stream collective infrastructure
Ofir Bitton [Thu, 10 Sep 2020 07:10:55 +0000 (10:10 +0300)]
habanalabs: sync stream collective infrastructure

Define new API for collective wait support and modify sync stream
common flow. In addition add kernel CB allocation support for
internal queues.

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: use enum for CB allocation options
Tal Cohen [Wed, 3 Jun 2020 06:25:27 +0000 (09:25 +0300)]
habanalabs: use enum for CB allocation options

In the future there will be situations where queues can accept either
kernel allocated CBs or user allocated CBs, depending on different
states.

Therefore, instead of using a boolean variable of kernel/user allocated
CB, we need to use a bitmask to indicate that, which will allow to
combine the two options.

Add a flag to the uapi so the user will be able to indicate whether
the CB was allocated by kernel or by user. Of course the driver
validates that.

Signed-off-by: Tal Cohen <talcohen@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 QMANs
Oded Gabbay [Mon, 2 Nov 2020 19:10:39 +0000 (21:10 +0200)]
habanalabs/gaudi: add support for NIC QMANs

Initialize the QMANs that are responsible to submit doorbells to the NIC
engines. Add support for stopping and disabling them, and reset them as
part of the hard-reset procedure of GAUDI. This will allow the user to
submit work to the NICs.

Add support for receiving events on QMAN errors from the firmware.

However, the nic_ports_mask is still initialized to 0. That means this code
won't initialize the QMANs just yet. That will be in a later patch.

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/gaudi: add NIC security configuration
Oded Gabbay [Mon, 2 Nov 2020 19:09:33 +0000 (21:09 +0200)]
habanalabs/gaudi: add NIC security configuration

Configure the security properties of the NIC IP. This is to prevent the
user process from doing something with the NIC that he shouldn't do. e.g.
crash the server, steal data, etc.

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/gaudi: add NIC firmware-related definitions
Oded Gabbay [Mon, 2 Nov 2020 19:07:51 +0000 (21:07 +0200)]
habanalabs/gaudi: add NIC firmware-related definitions

Add new structures and messages that the driver use to interact with the
firmware to receive information and events (errors) about GAUDI's NIC.

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/gaudi: add NIC QMAN H/W and registers definitions
Oded Gabbay [Mon, 2 Nov 2020 19:00:18 +0000 (21:00 +0200)]
habanalabs/gaudi: add NIC QMAN H/W and registers definitions

Add auto-generated header files that describe the NIC QMANs registers
used by the driver.

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: remove duplicate check
Oded Gabbay [Mon, 12 Oct 2020 17:56:33 +0000 (20:56 +0300)]
habanalabs: remove duplicate check

We already check if queue index is smaller than max queues a few lines
above this check so no need to check this again.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: sync stream refactor functions
Ofir Bitton [Thu, 10 Sep 2020 06:43:43 +0000 (09:43 +0300)]
habanalabs: sync stream refactor functions

Refactor sync stream implementation by reducing function length
for better readability.

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 support for multiple SOBs per monitor
Ofir Bitton [Thu, 10 Sep 2020 06:40:35 +0000 (09:40 +0300)]
habanalabs: add support for multiple SOBs per monitor

Support advanced monitor functionality to monitor more than a
single SOB. In addition expand all CB generation functions
with buffer offset in order to put in them multiple packets that are
generated by different functions.

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: sync stream structures refactor
Ofir Bitton [Thu, 10 Sep 2020 06:17:50 +0000 (09:17 +0300)]
habanalabs: sync stream structures refactor

Refactor sync stream implementation by adding more structures for
better readability. In addition reducing allocated resources.

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: don't init vm module if no MMU
Oded Gabbay [Sun, 4 Oct 2020 20:00:39 +0000 (23:00 +0300)]
habanalabs: don't init vm module if no MMU

In case we are running without MMU enabled (debug mode), no need to
initialize the VM module in the driver.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: minimize prints when everything is fine
Oded Gabbay [Fri, 2 Oct 2020 21:14:27 +0000 (00:14 +0300)]
habanalabs: minimize prints when everything is fine

No need to print when the driver starts to initialize the H/W. Drivers
should be silent when everything is OK.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: support multiple types of firmwares
Oded Gabbay [Thu, 1 Oct 2020 10:46:37 +0000 (13:46 +0300)]
habanalabs: support multiple types of firmwares

The driver now loads the firmware in two stages. For debugging purposes
we need to support situations where only the first stage firmware is
loaded.

Therefore, use a bitmask to determine which F/W is loaded

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs: we need CPU queues for hwmon
Oded Gabbay [Thu, 1 Oct 2020 10:44:22 +0000 (13:44 +0300)]
habanalabs: we need CPU queues for hwmon

F/W can be loaded but device CPU queues disabled. In that case, HWMON
should be disabled. This is only relevant when debugging

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agohabanalabs/gaudi: move mmu_prepare to context init
Ofir Bitton [Wed, 30 Sep 2020 12:51:10 +0000 (15:51 +0300)]
habanalabs/gaudi: move mmu_prepare to context init

Currently mmu_prepare is located at context switch.
Since we support a single context, no reason to reconfigure
the MMU registers every context switch.

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: change aggregate cs counters to atomic
Oded Gabbay [Wed, 30 Sep 2020 11:25:55 +0000 (14:25 +0300)]
habanalabs: change aggregate cs counters to atomic

In case we will have multiple contexts/processes, we can't just
increment aggregated counters. We need to make them atomic as they can
be incremented by multiple processes

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
3 years agoMAINTAINERS: update email, git repo of habanalabs driver
Oded Gabbay [Mon, 2 Nov 2020 19:15:47 +0000 (21:15 +0200)]
MAINTAINERS: update email, git repo of habanalabs driver

Update the email to my kernel.org email address and update the git
repository address to the git.kernel.org

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoMerge 5.10-rc6 into char-misc-next
Greg Kroah-Hartman [Mon, 30 Nov 2020 07:33:06 +0000 (08:33 +0100)]
Merge 5.10-rc6 into char-misc-next

We need the fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoLinux 5.10-rc6
Linus Torvalds [Sun, 29 Nov 2020 23:50:50 +0000 (15:50 -0800)]
Linux 5.10-rc6

3 years agoMerge tag 'locking-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 29 Nov 2020 19:19:26 +0000 (11:19 -0800)]
Merge tag 'locking-urgent-2020-11-29' of git://git./linux/kernel/git/tip/tip

Pull locking fixes from Thomas Gleixner:
 "Two more places which invoke tracing from RCU disabled regions in the
  idle path.

  Similar to the entry path the low level idle functions have to be
  non-instrumentable"

* tag 'locking-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  intel_idle: Fix intel_idle() vs tracing
  sched/idle: Fix arch_cpu_idle() vs tracing

3 years agoMerge tag 'irq-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 29 Nov 2020 19:06:57 +0000 (11:06 -0800)]
Merge tag 'irq-urgent-2020-11-29' of git://git./linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "Two fixes for irqchip drivers:

   - Save and restore the GICV3 ITS state unconditionally on
     suspend/resume to handle firmware which fails to do so.

   - Use the correct index into the fwspec parameters to read the irq
     trigger type in the EXIU chip driver"

* tag 'irq-urgent-2020-11-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/gic-v3-its: Unconditionally save/restore the ITS state on suspend
  irqchip/exiu: Fix the index of fwspec for IRQ type

3 years agoMerge tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 29 Nov 2020 18:18:53 +0000 (10:18 -0800)]
Merge tag 'efi-urgent-for-v5.10-rc5' of git://git./linux/kernel/git/tip/tip

Pull EFI fixes from Borislav Petkov:
 "More EFI fixes forwarded from Ard Biesheuvel:

   - revert efivarfs kmemleak fix again - it was a false positive

   - make CONFIG_EFI_EARLYCON depend on CONFIG_EFI explicitly so it does
     not pull in other dependencies unnecessarily if CONFIG_EFI is not
     set

   - defer attempts to load SSDT overrides from EFI vars until after the
     efivar layer is up"

* tag 'efi-urgent-for-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi: EFI_EARLYCON should depend on EFI
  efivarfs: revert "fix memory leak in efivarfs_create()"
  efi/efivars: Set generic ops before loading SSDT

3 years agoMerge tag 'x86_urgent_for_v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 29 Nov 2020 18:08:17 +0000 (10:08 -0800)]
Merge tag 'x86_urgent_for_v5.10-rc6' of git://git./linux/kernel/git/tip/tip

Pull x86 fixes from Borislav Petkov:
 "A couple of urgent fixes which accumulated this last week:

   - Two resctrl fixes to prevent refcount leaks when manipulating the
     resctrl fs (Xiaochen Shen)

   - Correct prctl(PR_GET_SPECULATION_CTRL) reporting (Anand K Mistry)

   - A fix to not lose already seen MCE severity which determines
     whether the machine can recover (Gabriele Paoloni)"

* tag 'x86_urgent_for_v5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mce: Do not overwrite no_way_out if mce_end() fails
  x86/speculation: Fix prctl() when spectre_v2_user={seccomp,prctl},ibpb
  x86/resctrl: Add necessary kernfs_put() calls to prevent refcount leak
  x86/resctrl: Remove superfluous kernfs_get() calls to prevent refcount leak

3 years agoMerge tag 'riscv-for-linus-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sat, 28 Nov 2020 23:53:30 +0000 (15:53 -0800)]
Merge tag 'riscv-for-linus-5.10-rc6' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:
 "I've collected a handful of fixes over the past few weeks:

   - A fix to un-break the build-id argument to the vDSO build, which is
     necessary for the LLVM linker.

   - A fix to initialize the jump label subsystem, without which it (and
     all the stuff that uses it) doesn't actually function.

   - A fix to include <asm/barrier.h> from <vdso/processor.h>, without
     which some drivers won't compile"

* tag 'riscv-for-linus-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: fix barrier() use in <vdso/processor.h>
  RISC-V: Add missing jump label initialization
  riscv: Explicitly specify the build id style in vDSO Makefile again

3 years agoMerge tag 'kbuild-fixes-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masah...
Linus Torvalds [Sat, 28 Nov 2020 18:42:30 +0000 (10:42 -0800)]
Merge tag 'kbuild-fixes-v5.10' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Remove unused OBJSIZE variable.

 - Fix rootless deb-pkg build in a setgid directory.

* tag 'kbuild-fixes-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  builddeb: Fix rootless build in setuid/setgid directory
  kbuild: remove unused OBJSIZE

3 years agoMerge tag 'perf-tools-fixes-for-v5.10-2020-11-28' of git://git.kernel.org/pub/scm...
Linus Torvalds [Sat, 28 Nov 2020 18:35:05 +0000 (10:35 -0800)]
Merge tag 'perf-tools-fixes-for-v5.10-2020-11-28' of git://git./linux/kernel/git/acme/linux

Pull perf tool fixes from Arnaldo Carvalho de Melo:

 - Fix die_entrypc() when DW_AT_ranges DWARF attribute not available

 - Cope with broken DWARF (missing DW_AT_declaration) generated by some
   recent gcc versions

 - Do not generate CGROUP metadata events when not asked to in 'perf
   record'

 - Use proper CPU for shadow stats in 'perf stat'

 - Update copy of libbpf's hashmap.c, silencing tools/perf build warning

 - Fix return value in 'perf diff'

* tag 'perf-tools-fixes-for-v5.10-2020-11-28' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux:
  perf probe: Change function definition check due to broken DWARF
  perf probe: Fix to die_entrypc() returns error correctly
  perf stat: Use proper cpu for shadow stats
  perf record: Synthesize cgroup events only if needed
  perf diff: Fix error return value in __cmd_diff()
  perf tools: Update copy of libbpf's hashmap.c

3 years agoMerge tag 'usb-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Linus Torvalds [Sat, 28 Nov 2020 18:09:38 +0000 (10:09 -0800)]
Merge tag 'usb-5.10-rc6' of git://git./linux/kernel/git/gregkh/usb

Pull USB / PHY driver fixes from Greg KH:
 "Here are a few small USB and PHY driver fixes for 5.10-rc6. They
  include:

   - small PHY driver fixes to resolve reported issues

   - USB quirks added for "broken" devices

   - typec fixes for reported problems

   - USB gadget fixes for small issues

  Full details are in the shortlog, nothing major in here and all have
  been in linux-next with no reported issues"

* tag 'usb-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
  usb: typec: stusb160x: fix power-opmode property with typec-power-opmode
  USB: core: Change %pK for __user pointers to %px
  USB: core: Fix regression in Hercules audio card
  usb: gadget: Fix memleak in gadgetfs_fill_super
  usb: gadget: f_midi: Fix memleak in f_midi_alloc
  USB: quirks: Add USB_QUIRK_DISCONNECT_SUSPEND quirk for Lenovo A630Z TIO built-in usb-audio card
  usb: typec: qcom-pmic-typec: fix builtin build errors
  phy: mediatek: fix spelling mistake in Kconfig "veriosn" -> "version"
  phy: qualcomm: Fix 28 nm Hi-Speed USB PHY OF dependency
  phy: qualcomm: usb: Fix SuperSpeed PHY OF dependency
  phy: intel: PHY_INTEL_KEEMBAY_EMMC should depend on ARCH_KEEMBAY
  usb: cdns3: gadget: calculate TD_SIZE based on TD
  usb: cdns3: gadget: initialize link_trb as NULL
  phy: cpcap-usb: Use IRQF_ONESHOT
  phy: qcom-qmp: Initialize another pointer to NULL
  phy: tegra: xusb: Fix dangling pointer on probe failure
  phy: usb: Fix incorrect clearing of tca_drv_sel bit in SETUP reg for 7211

3 years agoMerge tag 'char-misc-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregk...
Linus Torvalds [Sat, 28 Nov 2020 18:04:36 +0000 (10:04 -0800)]
Merge tag 'char-misc-5.10-rc6' of git://git./linux/kernel/git/gregkh/char-misc

Pull char/misc driver fixes from Greg KH:
 "Here are some small misc driver fixes for 5.10-rc6.  They include:

   - interconnect fixes for reported problems

   - habanalabs bugfix for found issue when doing the switch fallthrough
     patches

   - MAINTAINERS file update for coresight reviewers/maintainers

  All have been in linux-next with no reported issues"

* tag 'char-misc-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
  MAINTAINERS: Adding help for coresight subsystem
  habanalabs/gaudi: fix missing code in ECC handling
  interconnect: fix memory trashing in of_count_icc_providers()
  interconnect: qcom: qcs404: Remove GPU and display RPM IDs
  interconnect: qcom: msm8916: Remove rpm-ids from non-RPM nodes
  interconnect: qcom: msm8974: Don't boost the NoC rate during boot
  interconnect: qcom: msm8974: Prevent integer overflow in rate

3 years agoMerge tag 'asm-generic-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 27 Nov 2020 23:00:35 +0000 (15:00 -0800)]
Merge tag 'asm-generic-fixes-5.10-2' of git://git./linux/kernel/git/arnd/asm-generic

Pull asm-generic fix from Arnd Bergmann:
 "Add correct MAX_POSSIBLE_PHYSMEM_BITS setting to asm-generic.

  This is a single bugfix for a bug that Stefan Agner found on 32-bit
  Arm, but that exists on several other architectures"

* tag 'asm-generic-fixes-5.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  arch: pgtable: define MAX_POSSIBLE_PHYSMEM_BITS where needed

3 years agoMerge tag 'arm-soc-fixes-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 27 Nov 2020 22:48:03 +0000 (14:48 -0800)]
Merge tag 'arm-soc-fixes-v5.10-3' of git://git./linux/kernel/git/soc/soc

Pull ARM SoC fixes from Arnd Bergmann:
 "Another set of patches for devicetree files and Arm SoC specific
  drivers:

   - A fix for OP-TEE shared memory on non-SMP systems

   - multiple code fixes for the OMAP platform, including one regression
     for the CPSW network driver and a few runtime warning fixes

   - Some DT patches for the Rockchip RK3399 platform, in particular
     fixing the MMC device ordering that recently became
     nondeterministic with async probe.

   - Multiple DT fixes for the Tegra platform, including a regression
     fix for suspend/resume on TX2

   - A regression fix for a user-triggered fault in the NXP dpio driver

   - A regression fix for a bug caused by an earlier bug fix in the
     xilinx firmware driver

   - Two more DTC warning fixes

   - Sylvain Lemieux steps down as maintainer for the NXP LPC32xx
     platform"

* tag 'arm-soc-fixes-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (24 commits)
  arm64: tegra: Fix Tegra234 VDK node names
  arm64: tegra: Wrong AON HSP reg property size
  arm64: tegra: Fix USB_VBUS_EN0 regulator on Jetson TX1
  arm64: tegra: Correct the UART for Jetson Xavier NX
  arm64: tegra: Disable the ACONNECT for Jetson TX2
  optee: add writeback to valid memory type
  firmware: xilinx: Use hash-table for api feature check
  firmware: xilinx: Fix SD DLL node reset issue
  soc: fsl: dpio: Get the cpumask through cpumask_of(cpu)
  ARM: dts: dra76x: m_can: fix order of clocks
  bus: ti-sysc: suppress err msg for timers used as clockevent/source
  MAINTAINERS: Remove myself as LPC32xx maintainers
  arm64: dts: qcom: clear the warnings caused by empty dma-ranges
  arm64: dts: broadcom: clear the warnings caused by empty dma-ranges
  ARM: dts: am437x-l4: fix compatible for cpsw switch dt node
  arm64: dts: rockchip: Reorder LED triggers from mmc devices on rk3399-roc-pc.
  arm64: dts: rockchip: Assign a fixed index to mmc devices on rk3399 boards.
  arm64: dts: rockchip: Remove system-power-controller from pmic on Odroid Go Advance
  arm64: dts: rockchip: fix NanoPi R2S GMAC clock name
  ARM: OMAP2+: Manage MPU state properly for omap_enter_idle_coupled()
  ...

3 years agoMerge tag 'net-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Fri, 27 Nov 2020 22:38:02 +0000 (14:38 -0800)]
Merge tag 'net-5.10-rc6' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Networking fixes for 5.10-rc6, including fixes from the WiFi driver,
  and CAN subtrees.

  Current release - regressions:

   - gro_cells: reduce number of synchronize_net() calls

   - ch_ktls: release a lock before jumping to an error path

  Current release - always broken:

   - tcp: Allow full IP tos/IPv6 tclass to be reflected in L3 header

  Previous release - regressions:

   - net/tls: fix missing received data after fast remote close

   - vsock/virtio: discard packets only when socket is really closed

   - sock: set sk_err to ee_errno on dequeue from errq

   - cxgb4: fix the panic caused by non smac rewrite

  Previous release - always broken:

   - tcp: fix corner cases around setting ECN with BPF selection of
     congestion control

   - tcp: fix race condition when creating child sockets from syncookies
     on loopback interface

   - usbnet: ipheth: fix connectivity with iOS 14

   - tun: honor IOCB_NOWAIT flag

   - net/packet: fix packet receive on L3 devices without visible hard
     header

   - devlink: Make sure devlink instance and port are in same net
     namespace

   - net: openvswitch: fix TTL decrement action netlink message format

   - bonding: wait for sysfs kobject destruction before freeing struct
     slave

   - net: stmmac: fix upstream patch applied to the wrong context

   - bnxt_en: fix return value and unwind in probe error paths

  Misc:

   - devlink: add extra layer of categorization to the reload stats uAPI
     before it's released"

* tag 'net-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (68 commits)
  sock: set sk_err to ee_errno on dequeue from errq
  mptcp: fix NULL ptr dereference on bad MPJ
  net: openvswitch: fix TTL decrement action netlink message format
  can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check
  can: m_can: m_can_dev_setup(): add support for bosch mcan version 3.3.0
  can: m_can: fix nominal bitiming tseg2 min for version >= 3.1
  can: m_can: m_can_open(): remove IRQF_TRIGGER_FALLING from request_threaded_irq()'s flags
  can: mcp251xfd: mcp251xfd_probe(): bail out if no IRQ was given
  can: gs_usb: fix endianess problem with candleLight firmware
  ch_ktls: lock is not freed
  net/tls: Protect from calling tls_dev_del for TLS RX twice
  devlink: Make sure devlink instance and port are in same net namespace
  devlink: Hold rtnl lock while reading netdev attributes
  ptp: clockmatrix: bug fix for idtcm_strverscmp
  enetc: Let the hardware auto-advance the taprio base-time of 0
  gro_cells: reduce number of synchronize_net() calls
  net: stmmac: fix incorrect merge of patch upstream
  ipv6: addrlabel: fix possible memory leak in ip6addrlbl_net_init
  Documentation: netdev-FAQ: suggest how to post co-dependent series
  ibmvnic: enhance resetting status check during module exit
  ...

3 years agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Fri, 27 Nov 2020 22:06:23 +0000 (14:06 -0800)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Three small fixes in the UFS driver: two are for power management
  issues and the third is to fix a slew of problem in the sysfs code"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: Fix race between shutdown and runtime resume flow
  scsi: ufs: Make sure clk scaling happens only when HBA is runtime ACTIVE
  scsi: ufs: Fix unexpected values from ufshcd_read_desc_param()

3 years agoMerge tag 'io_uring-5.10-2020-11-27' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 27 Nov 2020 20:56:04 +0000 (12:56 -0800)]
Merge tag 'io_uring-5.10-2020-11-27' of git://git.kernel.dk/linux-block

Pull io_uring fixes from Jens Axboe:

 - Out of bounds fix for the cq size cap from earlier this release (Joseph)

 - iov_iter type check fix (Pavel)

 - Files grab + cancelation fix (Pavel)

* tag 'io_uring-5.10-2020-11-27' of git://git.kernel.dk/linux-block:
  io_uring: fix files grab/cancel race
  io_uring: fix ITER_BVEC check
  io_uring: fix shift-out-of-bounds when round up cq size

3 years agoMerge tag 'block-5.10-2020-11-27' of git://git.kernel.dk/linux-block
Linus Torvalds [Fri, 27 Nov 2020 20:49:01 +0000 (12:49 -0800)]
Merge tag 'block-5.10-2020-11-27' of git://git.kernel.dk/linux-block

Pull block fix from Jens Axboe:
 "Just a single fix, for a crash in the keyslot manager"

* tag 'block-5.10-2020-11-27' of git://git.kernel.dk/linux-block:
  block/keyslot-manager: prevent crash when num_slots=1

3 years agoMerge tag 'for-5.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Fri, 27 Nov 2020 20:42:13 +0000 (12:42 -0800)]
Merge tag 'for-5.10-rc5-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:
 "A few fixes for various warnings that accumulated over past two weeks:

   - tree-checker: add missing return values for some errors

   - lockdep fixes
      - when reading qgroup config and starting quota rescan
      - reverse order of quota ioctl lock and VFS freeze lock

   - avoid accessing potentially stale fs info during device scan,
     reported by syzbot

   - add scope NOFS protection around qgroup relation changes

   - check for running transaction before flushing qgroups

   - fix tracking of new delalloc ranges for some cases"

* tag 'for-5.10-rc5-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: fix lockdep splat when enabling and disabling qgroups
  btrfs: do nofs allocations when adding and removing qgroup relations
  btrfs: fix lockdep splat when reading qgroup config on mount
  btrfs: tree-checker: add missing returns after data_ref alignment checks
  btrfs: don't access possibly stale fs_info data for printing duplicate device
  btrfs: tree-checker: add missing return after error in root_item
  btrfs: qgroup: don't commit transaction when we already hold the handle
  btrfs: fix missing delalloc new bit for new delalloc ranges

3 years agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Linus Torvalds [Fri, 27 Nov 2020 20:31:04 +0000 (12:31 -0800)]
Merge tag 'for-linus' of git://git./linux/kernel/git/rdma/rdma

Pull rdma fixes from Jason Gunthorpe:
 "Two security issues and several small bug fixes. Things seem to have
  stabilized for this release here.

  Summary:

   - Significant out of bounds access security issue in i40iw

   - Fix misuse of mmu notifiers in hfi1

   - Several errors in the register map/usage in hns

   - Missing error returns in mthca"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma:
  RDMA/hns: Bugfix for memory window mtpt configuration
  RDMA/hns: Fix retry_cnt and rnr_cnt when querying QP
  RDMA/hns: Fix wrong field of SRQ number the device supports
  IB/hfi1: Ensure correct mm is used at all times
  RDMA/i40iw: Address an mmap handler exploit in i40iw
  IB/mthca: fix return value of error branch in mthca_init_cq()

3 years agoMerge tag 'mtd/fixes-for-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 27 Nov 2020 20:03:07 +0000 (12:03 -0800)]
Merge tag 'mtd/fixes-for-5.10-rc6' of git://git./linux/kernel/git/mtd/linux

Pull mtd fixes from Miquel Raynal:
 "Because of a recent change in the core, NAND controller drivers
  initializing the ECC engine too early in the probe path are broken.

  Drivers should wait for the NAND device to be discovered and its
  memory layout known before doing any ECC related initialization, so
  instead of reverting the faulty change which is actually moving in the
  right direction, let's fix the drivers directly: socrates, sharpsl,
  r852, plat_nand, pasemi, tmio, txx9ndfmc, orion, mpc5121, lpc32xx_slc,
  lpc32xx_mlc, fsmc, diskonchip, davinci, cs553x, au1550, ams-delta,
  xway and gpio"

* tag 'mtd/fixes-for-5.10-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux:
  mtd: rawnand: socrates: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: sharpsl: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: r852: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: plat_nand: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: pasemi: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: tmio: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: txx9ndfmc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: orion: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: mpc5121: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: lpc32xx_slc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: lpc32xx_mlc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: fsmc: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: diskonchip: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: davinci: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: cs553x: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: au1550: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: ams-delta: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: xway: Move the ECC initialization to ->attach_chip()
  mtd: rawnand: gpio: Move the ECC initialization to ->attach_chip()

3 years agoMerge tag 'spi-fix-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/brooni...
Linus Torvalds [Fri, 27 Nov 2020 19:29:53 +0000 (11:29 -0800)]
Merge tag 'spi-fix-v5.10-rc5' of git://git./linux/kernel/git/broonie/spi

Pull spi fixes from Mark Brown:
 "A few fixes for v5.10,  one for the core which fixes some potential
  races for controllers with multiple chip selects when configuration of
  the chip select for one client device races with the addition and
  initial setup of an additional client"

* tag 'spi-fix-v5.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
  spi: dw: Fix spi registration for controllers overriding CS
  spi: imx: fix the unbalanced spi runtime pm management
  spi: spi-nxp-fspi: fix fspi panic by unexpected interrupts
  spi: Take the SPI IO-mutex in the spi_setup() method

3 years agoMerge tag 'media/v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab...
Linus Torvalds [Fri, 27 Nov 2020 19:25:23 +0000 (11:25 -0800)]
Merge tag 'media/v5.10-3' of git://git./linux/kernel/git/mchehab/linux-media

Pull virtual digital TV driver fixes from Mauro Carvalho Chehab:
 "A series of fixes for the new virtual digital TV driver (vidtv), which
  is meant to help doing tests with the digital TV core and media
  userspace apps and libraries.

  They cover a series of issues I found on it, together with a few new
  things in order to make it easier to detect problems at the DVB core"

* tag 'media/v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (36 commits)
  media: vidtv.rst: add kernel-doc markups
  media: vidtv.rst: update vidtv documentation
  media: vidtv: simplify EIT write function
  media: vidtv: simplify NIT write function
  media: vidtv: simplify SDT write function
  media: vidtv: cleanup PMT write table function
  media: vidtv: cleanup PAT write function
  media: vidtv: cleanup PSI table header function
  media: vidtv: cleanup PSI descriptor write function
  media: vidtv: simplify the crc writing logic
  media: vidtv: simplify PSI write function
  media: vidtv: add date to the current event
  media: vidtv: fix service_id at SDT table
  media: vidtv: fix service type
  media: vidtv: add a PID entry for the NIT table
  media: vidtv: properly fill EIT service_id
  media: vidtv: fix the network ID range
  media: vidtv: improve EIT data
  media: vidtv: cleanup null packet initialization logic
  media: vidtv: pre-initialize mux arrays
  ...

3 years agocoresight-stm: Fix W=1 warning in STM driver
Mathieu Poirier [Fri, 27 Nov 2020 17:52:56 +0000 (10:52 -0700)]
coresight-stm: Fix W=1 warning in STM driver

  CC      drivers/hwtracing/coresight/coresight-cti-core.o
  CC      drivers/hwtracing/coresight/coresight-cti-platform.o
  CC      drivers/hwtracing/coresight/coresight-cti-sysfs.o
drivers/hwtracing/coresight/coresight-stm.c:109: warning: Function parameter or member 'guaranteed' not described in 'channel_space'

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-16-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight-tpiu: Fix W=1 warning in TPIU driver
Mathieu Poirier [Fri, 27 Nov 2020 17:52:55 +0000 (10:52 -0700)]
coresight-tpiu: Fix W=1 warning in TPIU driver

  CC      drivers/hwtracing/coresight/coresight-etm4x-core.o
  CC      drivers/hwtracing/coresight/coresight-etm4x-sysfs.o
  CC      drivers/hwtracing/coresight/coresight-stm.o
drivers/hwtracing/coresight/coresight-tpiu.c:53: warning: Cannot understand  * @base:       memory mapped base address for this component.
 on line 53 - I thought it was a doc line
  CC      drivers/hwtracing/coresight/coresight-cpu-debug.o
  CC      drivers/hwtracing/coresight/coresight-catu.o

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-15-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: Fix W=1 warnings in core framework
Mathieu Poirier [Fri, 27 Nov 2020 17:52:54 +0000 (10:52 -0700)]
coresight: Fix W=1 warnings in core framework

  CC      drivers/hwtracing/coresight/coresight-etm4x-sysfs.o
  CC      drivers/hwtracing/coresight/coresight-stm.o
drivers/hwtracing/coresight/coresight-core.c:440: warning: Function parameter or member 'csdev' not described in 'coresight_disable_source'
drivers/hwtracing/coresight/coresight-core.c:670: warning: Function parameter or member 'csdev' not described in 'coresight_get_ref'
drivers/hwtracing/coresight/coresight-core.c:687: warning: Function parameter or member 'csdev' not described in 'coresight_put_ref'
drivers/hwtracing/coresight/coresight-core.c:758: warning: Function parameter or member 'sink' not described in '_coresight_build_path'
  CC      drivers/hwtracing/coresight/coresight-cpu-debug.o
  CC      drivers/hwtracing/coresight/coresight-catu.o

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-14-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: tmc-etr: Check if page is valid before dma_map_page()
Mao Jinlong [Fri, 27 Nov 2020 17:52:53 +0000 (10:52 -0700)]
coresight: tmc-etr: Check if page is valid before dma_map_page()

alloc_pages_node() return should be checked before calling
dma_map_page() to make sure that valid page is mapped or
else it can lead to aborts as below:

 Unable to handle kernel paging request at virtual address ffffffc008000000
 Mem abort info:
 <snip>...
 pc : __dma_inv_area+0x40/0x58
 lr : dma_direct_map_page+0xd8/0x1c8

 Call trace:
  __dma_inv_area
  tmc_pages_alloc
  tmc_alloc_data_pages
  tmc_alloc_sg_table
  tmc_init_etr_sg_table
  tmc_alloc_etr_buf
  tmc_enable_etr_sink_sysfs
  tmc_enable_etr_sink
  coresight_enable_path
  coresight_enable
  enable_source_store
  dev_attr_store
  sysfs_kf_write

Fixes: 99443ea19e8b ("coresight: Add generic TMC sg table framework")
Cc: stable@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mao Jinlong <jinlmao@codeaurora.org>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-13-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: tmc-etr: Assign boolean values to a bool variable
Kaixu Xia [Fri, 27 Nov 2020 17:52:52 +0000 (10:52 -0700)]
coresight: tmc-etr: Assign boolean values to a bool variable

Fix the following coccinelle warnings:

./drivers/hwtracing/coresight/coresight-tmc-etr.c:957:2-15: WARNING: Assignment of 0/1 to bool variable

Fix them by assigning boolean values.

Reported-by: Tosk Robot <tencent_os_robot@tencent.com>
Signed-off-by: Kaixu Xia <kaixuxia@tencent.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-12-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etb10: Fix possible NULL ptr dereference in etb_enable_perf()
Sai Prakash Ranjan [Fri, 27 Nov 2020 17:52:51 +0000 (10:52 -0700)]
coresight: etb10: Fix possible NULL ptr dereference in etb_enable_perf()

There was a report of NULL pointer dereference in ETF enable
path for perf CS mode with PID monitoring. It is almost 100%
reproducible when the process to monitor is something very
active such as chrome and with ETF as the sink, not ETR.

But code path shows that ETB has a similar path as ETF, so
there could be possible NULL pointer dereference crash in
ETB as well. Currently in a bid to find the pid, the owner
is dereferenced via task_pid_nr() call in etb_enable_perf()
and with owner being NULL, we can get a NULL pointer
dereference, so have a similar fix as ETF where we cache PID
in alloc_buffer() callback which is called as the part of
etm_setup_aux().

Fixes: 75d7dbd38824 ("coresight: etb10: Add support for CPU-wide trace scenarios")
Cc: stable@vger.kernel.org
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-11-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: tmc-etf: Fix NULL ptr dereference in tmc_enable_etf_sink_perf()
Sai Prakash Ranjan [Fri, 27 Nov 2020 17:52:50 +0000 (10:52 -0700)]
coresight: tmc-etf: Fix NULL ptr dereference in tmc_enable_etf_sink_perf()

There was a report of NULL pointer dereference in ETF enable
path for perf CS mode with PID monitoring. It is almost 100%
reproducible when the process to monitor is something very
active such as chrome and with ETF as the sink and not ETR.
Currently in a bid to find the pid, the owner is dereferenced
via task_pid_nr() call in tmc_enable_etf_sink_perf() and with
owner being NULL, we get a NULL pointer dereference.

Looking at the ETR and other places in the kernel, ETF and the
ETB are the only places trying to dereference the task(owner)
in tmc_enable_etf_sink_perf() which is also called from the
sched_in path as in the call trace. Owner(task) is NULL even
in the case of ETR in tmc_enable_etr_sink_perf(), but since we
cache the PID in alloc_buffer() callback and it is done as part
of etm_setup_aux() when allocating buffer for ETR sink, we never
dereference this NULL pointer and we are safe. So lets do the
same thing with ETF and cache the PID to which the cs_buffer
belongs in tmc_alloc_etf_buffer() as done for ETR. This will
also remove the unnecessary function calls(task_pid_nr()) since
we are caching the PID.

Easily reproducible running below:

 perf record -e cs_etm/@tmc_etf0/ -N -p <pid>

Unable to handle kernel NULL pointer dereference at virtual address 0000000000000548
Mem abort info:
  ESR = 0x96000006
  EC = 0x25: DABT (current EL), IL = 32 bits
  SET = 0, FnV = 0
  EA = 0, S1PTW = 0
Data abort info:
  ISV = 0, ISS = 0x00000006
  CM = 0, WnR = 0
<snip>...
Call trace:
 tmc_enable_etf_sink+0xe4/0x280
 coresight_enable_path+0x168/0x1fc
 etm_event_start+0x8c/0xf8
 etm_event_add+0x38/0x54
 event_sched_in+0x194/0x2ac
 group_sched_in+0x54/0x12c
 flexible_sched_in+0xd8/0x120
 visit_groups_merge+0x100/0x16c
 ctx_flexible_sched_in+0x50/0x74
 ctx_sched_in+0xa4/0xa8
 perf_event_sched_in+0x60/0x6c
 perf_event_context_sched_in+0x98/0xe0
 __perf_event_task_sched_in+0x5c/0xd8
 finish_task_switch+0x184/0x1cc
 schedule_tail+0x20/0xec
 ret_from_fork+0x4/0x18

Fixes: 880af782c6e8 ("coresight: tmc-etf: Add support for CPU-wide trace scenarios")
Cc: stable@vger.kernel.org
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-10-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: Remove unnecessary THIS_MODULE of funnel and replicator driver
Qi Liu [Fri, 27 Nov 2020 17:52:49 +0000 (10:52 -0700)]
coresight: Remove unnecessary THIS_MODULE of funnel and replicator driver

As THIS_MODULE has been set in platform_driver_register(), so remove it
from static funnel driver and static replicator driver to avoid set it
twice.

Signed-off-by: Qi Liu <liuqi115@huawei.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-9-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Handle TRCVIPCSSCTLR accesses
Suzuki K Poulose [Fri, 27 Nov 2020 17:52:48 +0000 (10:52 -0700)]
coresight: etm4x: Handle TRCVIPCSSCTLR accesses

TRCVIPCSSCTLR is not present if the TRCIDR4.NUMPC > 0. Thus we
should only access the register if it is present, preventing
any undesired behavior.

Cc: stable@vger.kernel.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/20201127175256.1092685-8-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Fix accesses to TRCPROCSELR
Suzuki K Poulose [Fri, 27 Nov 2020 17:52:47 +0000 (10:52 -0700)]
coresight: etm4x: Fix accesses to TRCPROCSELR

TRCPROCSELR is not implemented if the TRCIDR3.NUMPROC == 0. Skip
accessing the register in such cases.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.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/20201127175256.1092685-7-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Update TRCIDR3.NUMPROCS handling to match v4.2
Suzuki K Poulose [Fri, 27 Nov 2020 17:52:46 +0000 (10:52 -0700)]
coresight: etm4x: Update TRCIDR3.NUMPROCS handling to match v4.2

Since ETMv4.2, TRCIDR3.NUMPROCS has been extended to a 5bit field
by encoding the top 2 bits[4:3] in TRCIDR3.[13:12], which were RES0.
Fix the driver to compute the field correctly for ETMv4.2+

Cc: Mike Leach <mike.leach@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.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/20201127175256.1092685-6-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Fix accesses to TRCCIDCTLR1
Suzuki K Poulose [Fri, 27 Nov 2020 17:52:45 +0000 (10:52 -0700)]
coresight: etm4x: Fix accesses to TRCCIDCTLR1

The TRCCIDCTLR1 is only implemented if TRCIDR4.NUMCIDC > 4.
Don't touch the register if it is not implemented.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.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/20201127175256.1092685-5-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Fix accesses to TRCVMIDCTLR1
Suzuki K Poulose [Fri, 27 Nov 2020 17:52:44 +0000 (10:52 -0700)]
coresight: etm4x: Fix accesses to TRCVMIDCTLR1

TRCVMIDCTRL1 is only implemented only if the TRCIDR4.NUMVMIDC > 4.
We must not touch the register otherwise.

Cc: stable@vger.kernel.org
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Mike Leach <mike.leach@linaro.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/20201127175256.1092685-4-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: core: Remove unneeded semicolon
Zou Wei [Fri, 27 Nov 2020 17:52:43 +0000 (10:52 -0700)]
coresight: core: Remove unneeded semicolon

Fixes coccicheck warning:

./drivers/hwtracing/coresight/coresight-core.c:421:4-5: Unneeded semicolon

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zou Wei <zou_wei@huawei.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-3-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agocoresight: etm4x: Skip setting LPOVERRIDE bit for qcom, skip-power-up
Sai Prakash Ranjan [Fri, 27 Nov 2020 17:52:42 +0000 (10:52 -0700)]
coresight: etm4x: Skip setting LPOVERRIDE bit for qcom, skip-power-up

There is a bug on the systems supporting to skip power up
(qcom,skip-power-up) where setting LPOVERRIDE bit(low-power
state override behaviour) will result in CPU hangs/lockups
even on the implementations which supports it. So skip
setting the LPOVERRIDE bit for such platforms.

Fixes: 02510a5aa78d ("coresight: etm4x: Add support to skip trace unit power up")
Cc: stable@vger.kernel.org
Reviewed-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201127175256.1092685-2-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
3 years agoMerge tag 'drm-fixes-2020-11-27-1' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Fri, 27 Nov 2020 19:19:49 +0000 (11:19 -0800)]
Merge tag 'drm-fixes-2020-11-27-1' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Dave Airlie:
 "Unfortunately this has a bit of thanksgiving stuffing in it, as it a
  bit larger (at least the vc4 patches) than I like at this point in
  time.

  The main thing is it has a bunch of regressions fixes for reports in
  the last couple of weeks, ast, nouveau and the amdgpu ttm init fix,
  along with the usual selection of amdgpu and i915 fixes.

  The vc4 fixes are a few but they are fixes and the nastiest one is a
  fix for when you have a 2.4Ghz Wifi and a HDMI signal with a clock in
  that range and there isn't enough shielding and interference happen
  between the two, the fix adjusts the mode clock to try and avoid the
  wifi channels in that case.

  Hopefully you can merge this between turkey slices, and next week
  should be quieter.

  ast:
   - LUT loading regression fix

  nouveau:
   - relocations regression fix

  amdgpu:
   - ttm init oops fix
   - Runtime pm fix
   - SI UVD suspend/resume fix
   - HDCP fix for headless cards
   - Sienna Cichlid golden register update

  i915:
   - Fix Perf/OA workaround register corruption (Lionel)
   - Correct a comment statement in GVT (Yan)
   - Fix GT enable/disable iterrupts, including a race condition that
     prevented GPU to go idle (Chris)
   - Free stale request on destroying the virtual engine (Chris)

  exynos:
   - config dependency fix

  mediatek:
   - unused var removal
   - horizonal front/back porch formula fix

  vc4:
   - wifi and hdmi interference fix
   - mode rejection fixes
   - use after free fix
   - cleanup some code"

* tag 'drm-fixes-2020-11-27-1' of git://anongit.freedesktop.org/drm/drm: (28 commits)
  drm/nouveau: fix relocations applying logic and a double-free
  drm/ast: Reload gamma LUT after changing primary plane's color format
  drm/amdgpu: Fix size calculation when init onchip memory
  drm/amdgpu: update golden setting for sienna_cichlid
  drm/amd/display: Avoid HDCP initialization in devices without output
  drm/i915/gt: Free stale request on destroying the virtual engine
  drm/i915/gt: Don't cancel the interrupt shadow too early
  drm/i915/gt: Track signaled breadcrumbs outside of the breadcrumb spinlock
  drm/amdgpu: fix a page fault
  drm/amdgpu: fix SI UVD firmware validate resume fail
  drm/amd/amdgpu: fix null pointer in runtime pm
  drm/i915/gt: Defer enabling the breadcrumb interrupt to after submission
  drm/i915/gvt: correct a false comment of flag F_UNALIGN
  drm/i915/perf: workaround register corruption in OATAILPTR
  drm/vc4: kms: Don't disable the muxing of an active CRTC
  drm/vc4: kms: Store the unassigned channel list in the state
  drm/exynos: depend on COMMON_CLK to fix compile tests
  drm/mediatek: dsi: Modify horizontal front/back porch byte formula
  drm/vc4: hdmi: Disable Wifi Frequencies
  dt-bindings: display: Add a property to deal with WiFi coexistence
  ...

3 years agoMerge tag 'linux-can-fixes-for-5.10-20201127' of git://git.kernel.org/pub/scm/linux...
Jakub Kicinski [Fri, 27 Nov 2020 19:13:39 +0000 (11:13 -0800)]
Merge tag 'linux-can-fixes-for-5.10-20201127' of git://git./linux/kernel/git/mkl/linux-can

Marc Kleine-Budde says:

====================
pull-request: can 2020-11-27

The first patch is by me and target the gs_usb driver and fixes the endianess
problem with candleLight firmware.

Another patch by me for the mcp251xfd driver add sanity checking to bail out if
no IRQ is configured.

The next three patches target the m_can driver. A patch by me removes the
hardcoded IRQF_TRIGGER_FALLING from the request_threaded_irq() as this clashes
with the trigger level specified in the DT. Further a patch by me fixes the
nominal bitiming tseg2 min value for modern m_can cores. Pankaj Sharma's patch
add support for cores version 3.3.x.

The last patch by Oliver Hartkopp is for af_can and converts a WARN() into a
pr_warn(), which is triggered by the syzkaller. It was able to create a
situation where the closing of a socket runs simultaneously to the notifier
call chain for removing the CAN network device in use.

* tag 'linux-can-fixes-for-5.10-20201127' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can:
  can: af_can: can_rx_unregister(): remove WARN() statement from list operation sanity check
  can: m_can: m_can_dev_setup(): add support for bosch mcan version 3.3.0
  can: m_can: fix nominal bitiming tseg2 min for version >= 3.1
  can: m_can: m_can_open(): remove IRQF_TRIGGER_FALLING from request_threaded_irq()'s flags
  can: mcp251xfd: mcp251xfd_probe(): bail out if no IRQ was given
  can: gs_usb: fix endianess problem with candleLight firmware
====================

Link: https://lore.kernel.org/r/20201127100301.512603-1-mkl@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>