Dani Liberman [Mon, 1 Aug 2022 12:23:44 +0000 (15:23 +0300)]
habanalabs/gaudi2: add secured attestation info uapi
User will provide a nonce via the ioctl, and will retrieve
secured attestation data of the boot, generated using given
nonce.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dani Liberman [Thu, 8 Sep 2022 15:24:41 +0000 (18:24 +0300)]
habanalabs/gaudi2: add handling to pmmu events in eqe handler
In order to get the error cause and the captured address in case of
page fault, added pmmu events to eqe handler.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tal Cohen [Wed, 17 Aug 2022 09:46:07 +0000 (12:46 +0300)]
habanalabs/gaudi: change TPC Assert to use TPC DEC instead of QMAN err
This change is done while there is a problem to use QMAN error for
TPC assert async. The problem involves security limitation that exists
to generate the assert via QMAN error.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dani Liberman [Wed, 7 Sep 2022 13:15:39 +0000 (16:15 +0300)]
habanalabs: rename error info structure
As a preparation for adding more errors to it,
change to more suitable name.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
farah kassabri [Mon, 29 Aug 2022 13:56:28 +0000 (16:56 +0300)]
habanalabs/gaudi2: get f/w reset status register dynamically
Get the firmware reset status address from the dynamic registers
we read from the firmware instead of using a define.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Tue, 6 Sep 2022 13:37:14 +0000 (16:37 +0300)]
habanalabs/gaudi2: increase hard-reset sleep time to 2 sec
The access to the device registers is blocked during hard reset, until
preboot runs and allows the access to specific registers, including the
PSOC BTM_FSM register which is used to know when the reset is done.
Between the reset request and until this register is polled there is a
small delay of 500 msec which is not enough for F/W to process the reset
and for preboot to run, so the register might be accessed while it is
blocked.
To avoid it, increase the delay to 2 sec.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Mon, 5 Sep 2022 13:24:21 +0000 (16:24 +0300)]
habanalabs/gaudi2: print RAZWI info upon PCIe access error
Add the dump of the RAZWI information when a PCIe access is blocked by
RR.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Mon, 5 Sep 2022 14:14:45 +0000 (17:14 +0300)]
habanalabs: MMU invalidation h/w is per device
The code used the mmu mutex to protect access to the context's page
tables and invalidation of the MMU cache. Because pgt are per
context, the mmu mutex was a member of the context object.
The problem is that the device has a single MMU invalidation h/w
(per MMU). Therefore, the mmu mutex should not be a property of the
context but a property of the device.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tal Cohen [Thu, 18 Aug 2022 09:54:23 +0000 (12:54 +0300)]
habanalabs: new notifier events for device state
Add new notifier events that inform several device states.
General H/W error raised on device general H/W error occurs.
User engine error is raised when a device engine informs of an error.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Sun, 4 Sep 2022 07:39:27 +0000 (10:39 +0300)]
habanalabs/gaudi2: free event irq if init fails
In case initialization fails after event irq was requested, we need to
release that irq.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Thu, 1 Sep 2022 13:37:08 +0000 (16:37 +0300)]
habanalabs: fix resetting the DRAM BAR
Current code does not takes into account the new DRAM region base
and so calculated address is wrong and can lead to crush.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Tue, 23 Aug 2022 13:58:38 +0000 (16:58 +0300)]
habanalabs: add support for new cpucp return codes
Firmware now responds with a more detailed cpucp return codes.
Driver can now distinguish between error and debug return codes.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Thu, 1 Sep 2022 11:12:56 +0000 (14:12 +0300)]
habanalabs/gaudi2: read F/W security indication after hard reset
F/W security status might change after every reset.
Add the reading of the preboot status to the hard reset sequence, which
among others reads this security indication.
As this preboot status reading includes the waiting for the preboot to
be ready, it can be removed from the CPU init which is done in a later
stage.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Tue, 30 Aug 2022 12:07:51 +0000 (15:07 +0300)]
habanalabs/gaudi: rename mme cfg error response print
Current description is misleading hence we rename it to a more
suitable error description.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
farah kassabri [Tue, 23 Aug 2022 11:32:42 +0000 (14:32 +0300)]
habanalabs: fix possible hole in device va
cb_map_mem() uses gen_pool_alloc() to get virtual address for
mapping a CB.
The mapping is done in chunks of page size, so if the CB size is
larger, it is possible that the allocated virtual addresses won't
be consecutive.
User retrieves this device VA which returns the virtual address
in the first va_block. If there is a "hole" in the virtual addresses,
user can configure a HW block with a bad device VA.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Sun, 28 Aug 2022 09:46:27 +0000 (12:46 +0300)]
habanalabs: send device activity in a proper context
'Device activity open packet' should be sent outside of mutex as
there is no real necessity for a lock.
In addition 'device activity close packet' should be sent upon an
actual release of 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>
farah kassabri [Wed, 17 Aug 2022 14:43:43 +0000 (17:43 +0300)]
habanalabs: send device active message to f/w
As part of the RAS that is done by the f/w, we should send a message
to the f/w when a user either acquires or releases the device.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Sun, 21 Aug 2022 10:50:51 +0000 (13:50 +0300)]
habanalabs/gaudi2: dump detailed information upon RAZWI
In order to improve debuggability, we add all available information
when a RAZWI event occur.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
farah kassabri [Tue, 23 Aug 2022 14:41:52 +0000 (17:41 +0300)]
habanalabs/gaudi2: log critical events with no rate limit
When we have a storm of errors of HBM ECC SERR we can reach a situation
where driver start hard reset flow without logging the error cause
that caused the hard reset due to logs rate limiting.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Tue, 23 Aug 2022 13:23:56 +0000 (16:23 +0300)]
habanalabs: ignore EEPROM errors during boot
EEPROM errors reported by firmware are basically warnings and
should not fail the boot process.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Mon, 22 Aug 2022 07:59:34 +0000 (10:59 +0300)]
habanalabs: perform context switch flow only if needed
Except Goya, none of our ASICs require context switch flow, hence we
enable this flow only where it is needed.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dafna Hirschfeld [Mon, 23 May 2022 05:59:19 +0000 (08:59 +0300)]
habanalabs: set command buffer host VA dynamically
Set the addresses for userspace command buffer dynamically
instead of hard-coded. There is no reason for it to
be hard-coded.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Sun, 12 Jun 2022 12:00:29 +0000 (15:00 +0300)]
habanalabs: trace DMA allocations
This patch add tracepoints in the code for DMA allocation.
The main purpose is to be able to cross data with the map operations and
determine whether memory violation occurred, for example free DMA
allocation before unmapping it from device memory.
To achieve this the DMA alloc/free code flows were refactored so that a
single DMA tracepoint will catch many flows.
To get better understanding of what happened in the DMA allocations
the real allocating function is added to the trace as well.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Wed, 8 Jun 2022 07:27:59 +0000 (10:27 +0300)]
habanalabs: trace MMU map/unmap page
This patch utilize the defined tracepoint to trace the MMU's pages
map/unmap operations.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Wed, 8 Jun 2022 06:58:59 +0000 (09:58 +0300)]
habanalabs: define trace events
This patch adds trace events for habanalabs driver to gain all the
benefits such an infrastructure can supply.
The following events were added:
- MMU map/unmap: to be able to track driver's memory allocations
- DMA alloc/free: to track our DMA allocation
the above trace points in conjunction will help us map the device memory
usage as well as to be able to track memory violations.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Acked-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Rajarama Manjukody Bhat [Fri, 12 Aug 2022 06:28:20 +0000 (09:28 +0300)]
habanalabs/gaudi2: assigning PQFs for ARC f/w in PDMA
Assigning 3 PQFs in PDMA1 and 2 PQFs in PDMA0 for ARC firmware usage.
Signed-off-by: Rajarama Manjukody Bhat <rmbhat@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Mon, 15 Aug 2022 17:13:30 +0000 (20:13 +0300)]
habanalabs: fix calculation of DRAM base address in PCIe BAR
The calculation of the device DRAM base address before setting the
relevant PCIe BAR to point at it, has an assumption that this BAR is
used to access only the DRAM, and thus the covered DRAM size is a power
of 2.
In future ASICs it is not necessarily true, so need to update the
calculation to support also a non-power-of-2 size.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dafna Hirschfeld [Mon, 15 Aug 2022 08:40:55 +0000 (11:40 +0300)]
habanalabs: if map page fails don't try to unmap it
The original code tried to unmap a page that was not mapped as part of
the map page error path.
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Mon, 15 Aug 2022 10:59:14 +0000 (13:59 +0300)]
habanalabs: select FW_LOADER in Kconfig
The driver is loading firmware to the device and we use the firmware
loading functions from the FW_LOADER module.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Omer Shpigelman [Thu, 4 Aug 2022 14:32:30 +0000 (17:32 +0300)]
habanalabs: add cdev index data member
Instead of recalculating the cdev index, store it in a dedicated data
member. This data member is intended to be passed to other drivers using
the auxiliary bus infra and hence this new data member is necessary in
case that the calculation is changed in the future.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Wed, 10 Aug 2022 12:39:20 +0000 (15:39 +0300)]
habanalabs: fix missing info in sysfs documentation
The kernel version field wasn't updated when a few entries were
upstreamed.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dafna Hirschfeld [Mon, 8 Aug 2022 11:03:44 +0000 (14:03 +0300)]
habanalabs: fix bug when setting va block size
the size of a block is always 'block->end - block->start + 1'
Signed-off-by: Dafna Hirschfeld <dhirschfeld@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Wed, 3 Aug 2022 14:25:33 +0000 (17:25 +0300)]
habanalabs: expose device security status using info ioctl
In order for the user to know if he is running on a secured device
or not, we add it also to the hw_ip info ioctl.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Wed, 3 Aug 2022 14:16:56 +0000 (17:16 +0300)]
habanalabs: expose device security status through sysfs
In order for the user to know if he is running on a secured device
or not, a sysfs node is added.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Wed, 3 Aug 2022 08:59:19 +0000 (11:59 +0300)]
habanalabs: remove secured PCI IDs
Secured PCI ID will not be supported in new asics because the
security status can always be read from the f/w.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Wed, 3 Aug 2022 13:36:02 +0000 (16:36 +0300)]
habanalabs: fix H/W block handling for partial unmappings
Several munmap() calls can be done or a mapped H/W block that has a
larger size than a page size.
Releasing the object should be done only when all mapped range is
unmapped.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dani Liberman [Mon, 27 Jun 2022 19:06:51 +0000 (22:06 +0300)]
habanalabs: unify hwmon resources clean up
Since hwmon fini code is common for all asics, unified it to common
function.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tal Cohen [Thu, 7 Jul 2022 15:42:47 +0000 (18:42 +0300)]
habanalabs/gaudi2: new API to control engine cores running mode
The current flow of halting the engine cores is implemented by command
buffers built by the user space and sent towards the Driver.
This current flow is broken since the user space does not know when
the cores actually halt as sending a workload is async op.
Therefore the application can not free the memory that is mapped
to the engine cores.
This new API allows the user space to control the running mode. The
API call is sync (returns after the cores are set to the
requested mode).
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Sun, 7 Aug 2022 13:36:30 +0000 (16:36 +0300)]
habanalabs: remove left-over code from bring-up
There is some left-over code from the gaudi2 bring-up that wasn't
removed so far.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
farah kassabri [Wed, 20 Jul 2022 10:53:37 +0000 (13:53 +0300)]
habanalabs/gaudi2: change device f/w security check
On Gaudi2 the f/w always configures the PCIe iATU and allows access to
scratchpad registers. Therefore, we can know if the f/w is secured
by reading a status bit from the f/w registers.
Signed-off-by: farah kassabri <fkassabri@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Sun, 31 Jul 2022 06:10:24 +0000 (09:10 +0300)]
habanalabs: move common function out of debugfs.c
A common function that is called from multiple places can't be
located in degugfs.c because that file is only compiled if
debugfs is enabled in the kernel config file.
This can lead to undefined symbol compilation error.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Sun, 31 Jul 2022 05:27:36 +0000 (08:27 +0300)]
habanalabs/uapi: move defines to better place inside file
Cosmetic change to move the eventfd events defines to a better
location in the file, closer to other INFO IOCTL defines.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Tue, 19 Jul 2022 06:01:53 +0000 (09:01 +0300)]
habanalabs: add a missing lock for in_reset indication
Add a missing lock in hl_device_resume() when it assigns a value to the
'in_reset' indication.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Fri, 29 Jul 2022 13:30:48 +0000 (16:30 +0300)]
habanalabs: fix vma fields assignments order in hl_hw_block_mmap()
In hl_hw_block_mmap(), the vma's 'vm_private_data' and 'vm_ops' fields
are assigned before filling the content of the private data.
In between there is a call to the ASIC hw_block_mmap() function, and if
it fails, the vma close function will be called with a bad private data
value.
Fix the order of assignments to avoid this issue.
In hl_hw_block_mmap() the vma's 'vm_private_data and vm_ops are assigned
before setting the
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Wed, 27 Jul 2022 06:04:13 +0000 (09:04 +0300)]
habanalabs: avoid returning a valid handle if map_block() fails
map_block() sets the block id handle even if get_hw_block_id() fails,
and in this case it uses block id 0 which might be a valid id.
Modify it to set the handle only if get_hw_block_id() succeeds.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tal Cohen [Sun, 24 Jul 2022 14:40:23 +0000 (17:40 +0300)]
habanalabs: fix command submission sanity check
When a CS is submitted, the ioctl handler checks the CS
flags and performs a sanity check, according to its value.
As new CS flags are added, the sanity check needs to be updated
according to the new flags.
Signed-off-by: Tal Cohen <talcohen@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Sun, 24 Jul 2022 07:23:05 +0000 (10:23 +0300)]
habanalabs/gaudi: read div_sel value from firmware
Even when running with unsecured f/w, we should read the PLL div_sel
value from the f/w as this register is always privileged.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Sun, 24 Jul 2022 05:45:34 +0000 (08:45 +0300)]
habanalabs/gaudi: fix print format for div_sel
Print format was for int (%d) while variable is u32.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Wed, 20 Jul 2022 17:02:20 +0000 (20:02 +0300)]
habanalabs/gaudi2: mark PCIE access error as fatal
F/W events are enabled in a late phase of the device init, so an event
for a PCIE access error during the init, can be received after the init
is already done and considered as successful.
A resulting device reset, which does the same H/W init, can end
similarly with this event right after the reset is done and considered
as successful, and a loop of this sequence can continue.
To avoid it mark the PCIE access error as a fatal event, so after 2
consecutive events no more resets will be done.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dani Liberman [Sat, 9 Jul 2022 09:34:17 +0000 (12:34 +0300)]
habanalabs: add uapi to retrieve engines status
Currently, to get engines status, user needed to read debugfs file
with root permissions.
This new uapi allows user apace apps retrieve status, so for example,
in case of failure, status can be retrieved immediately by the
application itself which runs without root permissions.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Tue, 19 Jul 2022 09:16:01 +0000 (12:16 +0300)]
habanalabs: remove all kdma locks
We don't use KDMA concurrently in the driver. The only use is through
debugfs and we don't protect concurrent access through it.
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Mon, 18 Jul 2022 19:02:13 +0000 (22:02 +0300)]
habanalabs: wrap macro arg with parentheses
The macro argument <val> is cast-ed to u32 in some of the places.
Because this arg can be some arithmetic computation (e.g. address +
offset) the cast should be on the whole expression.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Bharat Jauhari [Wed, 1 Jun 2022 12:18:47 +0000 (15:18 +0300)]
habanalabs: fix spelling mistakes
Cosmetic commit, no logical changes. It just fixes the spelling
mistakes.
Signed-off-by: Bharat Jauhari <bjauhari@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Mon, 18 Jul 2022 18:02:34 +0000 (21:02 +0300)]
habanalabs/gaudi2: remove old interrupt mappings
Interrupt enumration has changed some time ago but the old mapping
was accidentally left in the driver.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Oded Gabbay [Wed, 6 Apr 2022 09:07:19 +0000 (12:07 +0300)]
habanalabs/gaudi: increase default cs timeout to 10 minutes
In order to improve scalability and reduce host overhead, it is better
to increase the default TDR timeout of Gaudi1 from 30 seconds to
10 minutes.
This will allow the DL Framework (e.g. PyTorch, TensorFlow) to remove
the host sync they are using now and improve overall performance on
scaleout training.
Note that one can always set the timeout to a custom value via
a kernel module parameter given during driver load.
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ohad Sharabi [Wed, 13 Jul 2022 10:47:23 +0000 (13:47 +0300)]
habanalabs: add return code field to module iterator
Up until now the module iterator called void callback functions
and so caller activating callback that may fail suffered from 2 issues:
1. The need to "plant" return called in the private data. This is a
drawback since the iterator itself should not be aware of the private
data of the caller.
2. Due to 1 even in a failure the iterator would keep iterating instead
of break upon error.
To overcome this an optional rc field added to the iterator context.
Signed-off-by: Ohad Sharabi <osharabi@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Tomer Tayar [Tue, 12 Jul 2022 15:19:11 +0000 (18:19 +0300)]
habanalabs/gaudi2: enable all MMU SPI/SEI interrupts
Currently only part of the MMU SPI/SEI interrupts are enabled, although
there is no real reason to not enable all.
The only exception is "burst_fifo_full" which is expected for PMMU
because it has a 2 entries FIFO, and thus is it not enabled for it.
Signed-off-by: Tomer Tayar <ttayar@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Ofir Bitton [Wed, 13 Jul 2022 12:08:09 +0000 (15:08 +0300)]
habanalabs: rename non_hard_reset to compute_reset
In order to be more explicit we should use the term compute_reset
for describing the reset in which only the compute engines gets
reset.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Colin Ian King [Thu, 14 Jul 2022 10:31:19 +0000 (11:31 +0100)]
habanalabs: Fix spelling mistake "Scrubing" -> "Scrubbing"
There is a spelling mistake in a dev_dbg message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Yang Li [Thu, 14 Jul 2022 01:29:08 +0000 (09:29 +0800)]
habanalabs: Simplify bool conversion
Fix the following coccicheck warning:
./drivers/misc/habanalabs/gaudi2/gaudi2.c:9727:48-53: WARNING:
conversion to bool not needed here
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Dani Liberman [Sun, 3 Jul 2022 14:40:57 +0000 (17:40 +0300)]
habanalabs: removed seq_file parameter from is_idle asic functions
Change is_idle functions so it would be more usable outside debugfs.
Do this by replacing seq_file parameter with regular string.
Signed-off-by: Dani Liberman <dliberman@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Xuezhi Zhang [Thu, 1 Sep 2022 01:34:23 +0000 (09:34 +0800)]
comedi: convert sysfs snprintf to sysfs_emit
Follow the advice of the Documentation/filesystems/sysfs.rst
and show() should only use sysfs_emit() or sysfs_emit_at()
when formatting the value to be returned to user space.
Signed-off-by: Xuezhi Zhang <zhangxuezhi1@coolpad.com>
Link: https://lore.kernel.org/r/20220901013423.418464-1-zhangxuezhi3@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shunsuke Mie [Wed, 7 Sep 2022 02:01:00 +0000 (11:01 +0900)]
misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panic
The dma_map_single() doesn't permit zero length mapping. It causes a follow
panic.
A panic was reported on arm64:
[ 60.137988] ------------[ cut here ]------------
[ 60.142630] kernel BUG at kernel/dma/swiotlb.c:624!
[ 60.147508] Internal error: Oops - BUG: 0 [#1] PREEMPT SMP
[ 60.152992] Modules linked in: dw_hdmi_cec crct10dif_ce simple_bridge rcar_fdp1 vsp1 rcar_vin videobuf2_vmalloc rcar_csi2 v4l
2_mem2mem videobuf2_dma_contig videobuf2_memops pci_endpoint_test videobuf2_v4l2 videobuf2_common rcar_fcp v4l2_fwnode v4l2_asyn
c videodev mc gpio_bd9571mwv max9611 pwm_rcar ccree at24 authenc libdes phy_rcar_gen3_usb3 usb_dmac display_connector pwm_bl
[ 60.186252] CPU: 0 PID: 508 Comm: pcitest Not tainted 6.0.0-rc1rpci-dev+ #237
[ 60.193387] Hardware name: Renesas Salvator-X 2nd version board based on r8a77951 (DT)
[ 60.201302] pstate:
00000005 (nzcv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 60.208263] pc : swiotlb_tbl_map_single+0x2c0/0x590
[ 60.213149] lr : swiotlb_map+0x88/0x1f0
[ 60.216982] sp :
ffff80000a883bc0
[ 60.220292] x29:
ffff80000a883bc0 x28:
0000000000000000 x27:
0000000000000000
[ 60.227430] x26:
0000000000000000 x25:
ffff0004c0da20d0 x24:
ffff80000a1f77c0
[ 60.234567] x23:
0000000000000002 x22:
0001000040000010 x21:
000000007a000000
[ 60.241703] x20:
0000000000200000 x19:
0000000000000000 x18:
0000000000000000
[ 60.248840] x17:
0000000000000000 x16:
0000000000000000 x15:
ffff0006ff7b9180
[ 60.255977] x14:
ffff0006ff7b9180 x13:
0000000000000000 x12:
0000000000000000
[ 60.263113] x11:
0000000000000000 x10:
0000000000000000 x9 :
0000000000000000
[ 60.270249] x8 :
0001000000000010 x7 :
ffff0004c6754b20 x6 :
0000000000000000
[ 60.277385] x5 :
ffff0004c0da2090 x4 :
0000000000000000 x3 :
0000000000000001
[ 60.284521] x2 :
0000000040000000 x1 :
0000000000000000 x0 :
0000000040000010
[ 60.291658] Call trace:
[ 60.294100] swiotlb_tbl_map_single+0x2c0/0x590
[ 60.298629] swiotlb_map+0x88/0x1f0
[ 60.302115] dma_map_page_attrs+0x188/0x230
[ 60.306299] pci_endpoint_test_ioctl+0x5e4/0xd90 [pci_endpoint_test]
[ 60.312660] __arm64_sys_ioctl+0xa8/0xf0
[ 60.316583] invoke_syscall+0x44/0x108
[ 60.320334] el0_svc_common.constprop.0+0xcc/0xf0
[ 60.325038] do_el0_svc+0x2c/0xb8
[ 60.328351] el0_svc+0x2c/0x88
[ 60.331406] el0t_64_sync_handler+0xb8/0xc0
[ 60.335587] el0t_64_sync+0x18c/0x190
[ 60.339251] Code:
52800013 d2e00414 35fff45c d503201f (
d4210000)
[ 60.345344] ---[ end trace
0000000000000000 ]---
To fix it, this patch adds a checking the payload length if it is zero.
Fixes:
343dc693f7b7 ("misc: pci_endpoint_test: Prevent some integer overflows")
Cc: stable <stable@kernel.org>
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Link: https://lore.kernel.org/r/20220907020100.122588-2-mie@igel.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Shunsuke Mie [Wed, 7 Sep 2022 02:00:59 +0000 (11:00 +0900)]
misc: pci_endpoint_test: Aggregate params checking for xfer
Each transfer test functions have same parameter checking code. This patch
unites those to an introduced function.
Signed-off-by: Shunsuke Mie <mie@igel.co.jp>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20220907020100.122588-1-mie@igel.co.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio M. De Francesco [Thu, 1 Sep 2022 15:44:08 +0000 (17:44 +0200)]
misc/xilinx_sdfec: Replace kmap() with kmap_local_page()
kmap() is being deprecated in favor of kmap_local_page().
There are two main problems with kmap(): (1) It comes with an overhead as
the mapping space is restricted and protected by a global lock for
synchronization and (2) it also requires global TLB invalidation when the
kmap’s pool wraps and it might block when the mapping space is fully
utilized until a slot becomes available.
With kmap_local_page() the mappings are per thread, CPU local, can take
page faults, and can be called from any context (including interrupts).
It is faster than kmap() in kernels with HIGHMEM enabled. Furthermore,
the tasks can be preempted and, when they are scheduled to run again, the
kernel virtual addresses are restored and still valid.
Since its use in xilinx_sdfec.c is safe, replace kmap()i / kunmap() with
kmap_local_page() / kunmap_local().
Cc: "Venkataramanan, Anirudh" <anirudh.venkataramanan@intel.com>
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220901154408.23984-3-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio M. De Francesco [Thu, 1 Sep 2022 15:44:07 +0000 (17:44 +0200)]
misc/xilinx_sdfec: Call kunmap() on pages mapped with kmap()
Pages in an array are mapped in a loop but, after the code is done with
the virtual addresses, these pages are never unmapped.
Therefore, call kunmap() to unmap pages[i].
Cc: "Venkataramanan, Anirudh" <anirudh.venkataramanan@intel.com>
Cc: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220901154408.23984-2-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Fabio M. De Francesco [Thu, 1 Sep 2022 13:57:14 +0000 (15:57 +0200)]
misc/vmw_vmci: Use kmap_local_page() in vmci_queue_pair.c
kmap() is being deprecated in favor of kmap_local_page().
There are two main problems with kmap(): (1) It comes with an overhead as
the mapping space is restricted and protected by a global lock for
synchronization and (2) it also requires global TLB invalidation when the
kmap’s pool wraps and it might block when the mapping space is fully
utilized until a slot becomes available.
With kmap_local_page() the mappings are per thread, CPU local, can take
page faults, and can be called from any context (including interrupts).
It is faster than kmap() in kernels with HIGHMEM enabled. Furthermore,
the tasks can be preempted and, when they are scheduled to run again, the
kernel virtual addresses are restored and still valid.
Since its use in vmci_queue_pair.c is safe everywhere, replace kmap() with
kmap_local_page().
Cc: "Venkataramanan, Anirudh" <anirudh.venkataramanan@intel.com>
Suggested-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Link: https://lore.kernel.org/r/20220901135714.16481-1-fmdefrancesco@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiasheng Jiang [Thu, 1 Sep 2022 14:46:19 +0000 (22:46 +0800)]
virt: vbox: Remove unproper information
When drivers are working properly, they are quiet.
Therefore, the vbg_info() should be removed.
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220901144619.3550352-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jiasheng Jiang [Thu, 1 Sep 2022 14:46:10 +0000 (22:46 +0800)]
virt: vbox: convert to use dev_groups
The driver core supports the ability to handle the creation and removal
of device-specific sysfs files in a race-free manner. Moreover, it can
guarantee the success of creation. Therefore, it should be better to
convert to use dev_groups.
Fixes:
0ba002bc4393 ("virt: Add vboxguest driver for Virtual Box Guest integration")
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiasheng Jiang <jiasheng@iscas.ac.cn>
Link: https://lore.kernel.org/r/20220901144610.3550300-1-jiasheng@iscas.ac.cn
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Wed, 7 Sep 2022 14:58:08 +0000 (14:58 +0000)]
misc: microchip: pci1xxxx: use module_auxiliary_driver
Use the module_auxiliary_driver() macro to make the code simpler
by eliminating module_init and module_exit calls.
Fixes:
7d3e4d807df2 ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-5-weiyongjun@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Wed, 7 Sep 2022 14:58:07 +0000 (14:58 +0000)]
misc: microchip: pci1xxxx: Add missing MODULE_DEVICE_TABLE
This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.
Fixes:
7d3e4d807df2 ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-4-weiyongjun@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Wed, 7 Sep 2022 14:58:06 +0000 (14:58 +0000)]
misc: microchip: pci1xxxx: Make symbol 'pci1xxxx_gpio_auxiliary_id_table' static
The sparse tool complains as follows:
drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.c:409:34: warning:
symbol 'pci1xxxx_gpio_auxiliary_id_table' was not declared. Should it be static?
This symbol is not used outside of mchp_pci1xxxx_gpio.c, so marks it static.
Fixes:
7d3e4d807df2 ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-3-weiyongjun@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Wed, 7 Sep 2022 14:58:05 +0000 (14:58 +0000)]
misc: microchip: pci1xxxx: Fix missing spin_lock_init()
The driver allocates the spinlock but not initialize it.
Use spin_lock_init() on it to initialize it correctly.
Fixes:
7d3e4d807df2 ("misc: microchip: pci1xxxx: load gpio driver for the gpio controller auxiliary device enumerated by the auxiliary bus driver.")
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-2-weiyongjun@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Wei Yongjun [Wed, 7 Sep 2022 14:58:04 +0000 (14:58 +0000)]
misc: microchip: pci1xxxx: fix error handling in gp_aux_bus_probe()
In some error handling path, resoures alloced may not released.
This patch fix them.
Fixes:
393fc2f5948f ("misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO function in the multi-function endpoint of pci1xxxx device.")
Reviewed-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20220907145808.1789249-1-weiyongjun@huaweicloud.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vishnu Dasa [Tue, 6 Sep 2022 17:27:22 +0000 (10:27 -0700)]
MAINTAINERS: Add a new entry for VMWARE VSOCK VMCI TRANSPORT DRIVER
Add a new entry for VMWARE VSOCK VMCI TRANSPORT DRIVER in the
MAINTAINERS file.
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Vishnu Dasa <vdasa@vmware.com>
Link: https://lore.kernel.org/r/20220906172722.19862-4-vdasa@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vishnu Dasa [Tue, 6 Sep 2022 17:27:21 +0000 (10:27 -0700)]
MAINTAINERS: Change status of some VMware drivers
Change the status from 'Maintained' to 'Supported' for VMWARE
BALLOON DRIVER, VMWARE PVRDMA DRIVER, VMWARE PVSCSI driver,
VMWARE VMCI DRIVER, VMWARE VMMOUSE SUBDRIVER and VMWARE VMXNET3
ETHERNET DRIVER.
This needs to be done to conform to the guidelines in [1].
Maintainers for these drivers are VMware employees.
[1] https://docs.kernel.org/process/maintainers.html
Acked-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Vishnu Dasa <vdasa@vmware.com>
Link: https://lore.kernel.org/r/20220906172722.19862-3-vdasa@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Vishnu Dasa [Tue, 6 Sep 2022 17:27:20 +0000 (10:27 -0700)]
MAINTAINERS: Change VMware PVSCSI driver entry to upper case
Change 'VMware PVSCSI driver' entry to upper case.
This is a trivial change being done for uniformity.
Signed-off-by: Vishnu Dasa <vdasa@vmware.com>
Link: https://lore.kernel.org/r/20220906172722.19862-2-vdasa@vmware.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Carlos Llamas [Tue, 6 Sep 2022 13:59:47 +0000 (13:59 +0000)]
binder: fix binder_alloc kernel-doc warnings
Update the kernel-doc section of struct binder_alloc to fix the
following warnings reported by ./scripts/kernel-doc:
warning: Function parameter or member 'mutex' not described in 'binder_alloc'
warning: Function parameter or member 'vma_addr' not described in 'binder_alloc'
No functional changes in this patch.
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220906135948.3048225-4-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Carlos Llamas [Tue, 6 Sep 2022 13:59:46 +0000 (13:59 +0000)]
binder: remove binder_alloc_set_vma()
The mmap_locked asserts here are not needed since this is only called
back from the mmap stack in ->mmap() and ->close() which always acquire
the lock first. Remove these asserts along with binder_alloc_set_vma()
altogether since it's trivial enough to be consumed by callers.
Cc: Liam R. Howlett <Liam.Howlett@oracle.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220906135948.3048225-3-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Carlos Llamas [Tue, 6 Sep 2022 13:59:45 +0000 (13:59 +0000)]
binder: rename alloc->vma_vm_mm to alloc->mm
Rename ->vma_vm_mm to ->mm to reflect the fact that we no longer cache
this reference from vma->vm_mm but from current->mm instead.
No functional changes in this patch.
Reviewed-by: Christian Brauner (Microsoft) <brauner@kernel.org>
Acked-by: Todd Kjos <tkjos@google.com>
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Link: https://lore.kernel.org/r/20220906135948.3048225-2-cmllamas@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Kumaravel Thiagarajan [Tue, 6 Sep 2022 12:49:51 +0000 (18:19 +0530)]
misc: microchip: pci1xxxx: fix dependency issues in building the pci1xxxx's aux bus driver.
build errors and warnings listed below and reported by kernel
test robot <lkp@intel.com> on the char-misc-next branch are
fixed in this add-on patch.
errors:
ERROR: modpost: "auxiliary_device_init" [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.ko] undefined!
ERROR: modpost: "__auxiliary_device_add" [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.ko] undefined!
ERROR: modpost: "auxiliary_driver_unregister" [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.ko] undefined!
ERROR: modpost: "__auxiliary_driver_register" [drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.ko] undefined!
ia64-linux-ld: drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gp.o: in function `gp_aux_bus_probe.part.0':
mchp_pci1xxxx_gp.c:(.text+0x342): undefined reference to `auxiliary_device_init'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x392): undefined reference to `__auxiliary_device_add'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x5c2): undefined reference to `auxiliary_device_init'
ia64-linux-ld: mchp_pci1xxxx_gp.c:(.text+0x612): undefined reference to `__auxiliary_device_add'
ia64-linux-ld: drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_gpio.o: in function `pci1xxxx_gpio_driver_init':
mchp_pci1xxxx_gpio.c:(.init.text+0x42): undefined reference to `__auxiliary_driver_register'
warnings:
unmet direct dependencies detected for GPIOLIB_IRQCHIP when selected by GP_PCI1XXXX
Fixes:
393fc2f5948f ("misc: microchip: pci1xxxx: load auxiliary bus driver for the PIO function in the multi-function endpoint of pci1xxxx device.")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Kumaravel Thiagarajan <kumaravel.thiagarajan@microchip.com>
Link: https://lore.kernel.org/r/20220906124951.696776-1-kumaravel.thiagarajan@microchip.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Greg Kroah-Hartman [Mon, 5 Sep 2022 05:53:56 +0000 (07:53 +0200)]
Merge 6.0-rc4 into char-misc-next
We need the char-misc fixes in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Linus Torvalds [Sun, 4 Sep 2022 20:10:01 +0000 (13:10 -0700)]
Linux 6.0-rc4
Linus Torvalds [Sun, 4 Sep 2022 18:33:22 +0000 (11:33 -0700)]
Merge tag 'powerpc-6.0-4' of git://git./linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
- Fix handling of PCI domains in /proc on 32-bit systems using the
recently added support for numbering buses from zero for each domain.
- A fix and a revert for some changes to use READ/WRITE_ONCE() which
caused problems with KASAN enabled due to sanitisation calls being
introduced in low-level paths that can't cope with it.
- Fix build errors on 32-bit caused by the syscall table being
misaligned sometimes.
- Two fixes to get IBM Cell native machines booting again, which had
bit-rotted while my QS22 was temporarily out of action.
- Fix the papr_scm driver to not assume the order of events returned by
the hypervisor is stable, and a related compile fix.
Thanks to Aneesh Kumar K.V, Christophe Leroy, Jordan Niethe, Kajol Jain,
Masahiro Yamada, Nathan Chancellor, Pali Rohár, Vaibhav Jain, and Zhouyi
Zhou.
* tag 'powerpc-6.0-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/papr_scm: Ensure rc is always initialized in papr_scm_pmu_register()
Revert "powerpc/irq: Don't open code irq_soft_mask helpers"
powerpc: Fix hard_irq_disable() with sanitizer
powerpc/rtas: Fix RTAS MSR[HV] handling for Cell
Revert "powerpc: Remove unused FW_FEATURE_NATIVE references"
powerpc: align syscall table for ppc32
powerpc/pci: Enable PCI domains in /proc when PCI bus numbers are not unique
powerpc/papr_scm: Fix nvdimm event mappings
Linus Torvalds [Sun, 4 Sep 2022 18:27:14 +0000 (11:27 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm
Pull kvm fixes from Paolo Bonzini:
"s390:
- PCI interpretation compile fixes
RISC-V:
- fix unused variable warnings in vcpu_timer.c
- move extern sbi_ext declarations to a header
x86:
- check validity of argument to KVM_SET_MP_STATE
- use guest's global_ctrl to completely disable guest PEBS
- fix a memory leak on memory allocation failure
- mask off unsupported and unknown bits of IA32_ARCH_CAPABILITIES
- fix build failure with Clang integrated assembler
- fix MSR interception
- always flush TLBs when enabling dirty logging"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: x86: check validity of argument to KVM_SET_MP_STATE
perf/x86/core: Completely disable guest PEBS via guest's global_ctrl
KVM: x86: fix memoryleak in kvm_arch_vcpu_create()
KVM: x86: Mask off unsupported and unknown bits of IA32_ARCH_CAPABILITIES
KVM: s390: pci: Hook to access KVM lowlevel from VFIO
riscv: kvm: move extern sbi_ext declarations to a header
riscv: kvm: vcpu_timer: fix unused variable warnings
KVM: selftests: Fix ambiguous mov in KVM_ASM_SAFE()
KVM: selftests: Fix KVM_EXCEPTION_MAGIC build with Clang
KVM: VMX: Heed the 'msr' argument in msr_write_intercepted()
kvm: x86: mmu: Always flush TLBs when enabling dirty logging
kvm: x86: mmu: Drop the need_remote_flush() function
Nick Desaulniers [Thu, 1 Sep 2022 17:59:13 +0000 (10:59 -0700)]
Makefile.extrawarn: re-enable -Wformat for clang; take 2
-Wformat was recently re-enabled for builds with clang, then quickly
re-disabled, due to concerns stemming from the frequency of default
argument promotion related warning instances.
commit
258fafcd0683 ("Makefile.extrawarn: re-enable -Wformat for clang")
commit
21f9c8a13bb2 ("Revert "Makefile.extrawarn: re-enable -Wformat for clang"")
ISO WG14 has ratified N2562 to address default argument promotion
explicitly for printf, as part of the upcoming ISO C2X standard.
The behavior of clang was changed in clang-16 to not warn for the cited
cases in all language modes.
Add a version check, so that users of clang-16 now get the full effect
of -Wformat. For older clang versions, re-enable flags under the
-Wformat group that way users still get some useful checks related to
format strings, without noisy default argument promotion warnings. I
intentionally omitted -Wformat-y2k and -Wformat-security from being
re-enabled, which are also part of -Wformat in clang-16.
Link: https://github.com/ClangBuiltLinux/linux/issues/378
Link: https://github.com/llvm/llvm-project/issues/57102
Link: https://www.open-std.org/jtc1/sc22/wg14/www/docs/n2562.pdf
Suggested-by: Justin Stitt <jstitt007@gmail.com>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Youngmin Nam <youngmin.nam@samsung.com>
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 4 Sep 2022 04:27:27 +0000 (21:27 -0700)]
Merge tag 'gpio-fixes-for-v6.0-rc4' of git://git./linux/kernel/git/brgl/linux
Pull gpio fixes from Bartosz Golaszewski:
"A a set of fixes from the GPIO subsystem.
Most are small driver fixes except the realtek-otto driver patch which
is pretty big but addresses a significant flaw that can cause the CPU
to stay infinitely busy on uncleared ISR on some platforms.
Summary:
- MAINTAINERS update
- fix resource leaks in gpio-mockup and gpio-pxa
- add missing locking in gpio-pca953x
- use 32-bit I/O in gpio-realtek-otto
- make irq_chip structures immutable in four more drivers"
* tag 'gpio-fixes-for-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
gpio: ws16c48: Make irq_chip immutable
gpio: 104-idio-16: Make irq_chip immutable
gpio: 104-idi-48: Make irq_chip immutable
gpio: 104-dio-48e: Make irq_chip immutable
gpio: realtek-otto: switch to 32-bit I/O
gpio: pca953x: Add mutex_lock for regcache sync in PM
gpio: mockup: remove gpio debugfs when remove device
gpio: pxa: use devres for the clock struct
MAINTAINERS: rectify entry for XILINX GPIO DRIVER
William Breathitt Gray [Fri, 2 Sep 2022 17:45:26 +0000 (13:45 -0400)]
gpio: ws16c48: Make irq_chip immutable
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
William Breathitt Gray [Fri, 2 Sep 2022 17:45:25 +0000 (13:45 -0400)]
gpio: 104-idio-16: Make irq_chip immutable
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
William Breathitt Gray [Fri, 2 Sep 2022 17:45:24 +0000 (13:45 -0400)]
gpio: 104-idi-48: Make irq_chip immutable
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
William Breathitt Gray [Fri, 2 Sep 2022 17:45:23 +0000 (13:45 -0400)]
gpio: 104-dio-48e: Make irq_chip immutable
Kernel warns about mutable irq_chips:
"not an immutable chip, please consider fixing!"
Make the struct irq_chip const, flag it as IRQCHIP_IMMUTABLE, add the
new helper functions, and call the appropriate gpiolib functions.
Signed-off-by: William Breathitt Gray <william.gray@linaro.org>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Linus Torvalds [Sat, 3 Sep 2022 20:23:11 +0000 (13:23 -0700)]
Merge tag 'for-linus-6.0-rc4-tag' of git://git./linux/kernel/git/xen/tip
Pull xen fixes from Juergen Gross:
- a minor fix for the Xen grant driver
- a small series fixing a recently introduced problem in the Xen
blkfront/blkback drivers with negotiation of feature usage
* tag 'for-linus-6.0-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen/grants: prevent integer overflow in gnttab_dma_alloc_pages()
xen-blkfront: Cache feature_persistent value before advertisement
xen-blkfront: Advertise feature-persistent as user requested
xen-blkback: Advertise feature-persistent as user requested
Linus Torvalds [Sat, 3 Sep 2022 20:21:01 +0000 (13:21 -0700)]
Merge tag 'loongarch-fixes-6.0-2' of git://git./linux/kernel/git/chenhuacai/linux-loongson
Pull LoongArch fixes from Huacai Chen:
"Fix several build errors or warnings, cleanup some code, and adjust
arch_do_signal_or_restart() to adapt generic entry"
* tag 'loongarch-fixes-6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
LoongArch: mm: Remove the unneeded result variable
LoongArch: Fix arch_remove_memory() undefined build error
LoongArch: Fix section mismatch due to acpi_os_ioremap()
LoongArch: Improve dump_tlb() output messages
LoongArch: Adjust arch_do_signal_or_restart() to adapt generic entry
LoongArch: Avoid orphan input sections
Linus Torvalds [Sat, 3 Sep 2022 20:17:33 +0000 (13:17 -0700)]
Merge tag 's390-6.0-3' of git://git./linux/kernel/git/s390/linux
Pull s390 fixes from Vasily Gorbik:
- Update defconfigs
- Fix linker script to align nospec tables correctly to avoid
potentially unbootable kernel with some config options
- Fix alignment check in prepare_hugepage_range() for 2GB hugepages to
avoid BUG in __unmap_hugepage_range() for unaligned mappings later
- Remove useless hugepage address alignment in hugetlb fault handling
* tag 's390-6.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
s390/hugetlb: fix prepare_hugepage_range() check for 2 GB hugepages
s390: update defconfigs
s390: fix nospec table alignments
s390/mm: remove useless hugepage address alignment
Linus Torvalds [Sat, 3 Sep 2022 20:09:46 +0000 (13:09 -0700)]
Merge tag 'input-for-v6.0-rc3' of git://git./linux/kernel/git/dtor/input
Pull input fixes from Dmitry Torokhov:
- GT1158 ID added to Goodix touchscreen driver
- Boeder Force Feedback Wheel USB added to iforce joystick driver
- fixup for iforce driver to avoid hangups
- fix autoloading of rk805-pwrkey driver.
* tag 'input-for-v6.0-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
Input: iforce - add support for Boeder Force Feedback Wheel
Input: iforce - wake up after clearing IFORCE_XMIT_RUNNING flag
Input: goodix - add compatible string for GT1158
MAINTAINERS: add include/dt-bindings/input to INPUT DRIVERS
Input: rk805-pwrkey - fix module autoloading
Input: goodix - add support for GT1158
dt-bindings: input: touchscreen: add compatible string for Goodix GT1158
Linus Torvalds [Sat, 3 Sep 2022 17:34:02 +0000 (10:34 -0700)]
Merge tag 'tty-6.0-rc4' of git://git./linux/kernel/git/gregkh/tty
Pull tty/serial driver fixes from Greg KH:
"Here are some small tty/serial/vt driver fixes for 6.0-rc4 that
resolve a number of reported issues:
- n_gsm fixups for previous changes that caused problems
- much-reported serdev crash fix that showed up in 6.0-rc1
- vt font selection bugfix
- kerneldoc build warning fixes
- other tiny serial core fixes
All of these have been in linux-next for a while with no reported
problems"
* tag 'tty-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty:
tty: n_gsm: avoid call of sleeping functions from atomic context
tty: n_gsm: replace kicktimer with delayed_work
tty: n_gsm: initialize more members at gsm_alloc_mux()
tty: n_gsm: add sanity check for gsm->receive in gsm_receive_buf()
tty: serial: atmel: Preserve previous USART mode if RS485 disabled
tty: serial: lpuart: disable flow control while waiting for the transmit engine to complete
tty: Fix lookahead_buf crash with serdev
serial: fsl_lpuart: RS485 RTS polariy is inverse
vt: Clear selection before changing the font
serial: document start_rx member at struct uart_ops
Linus Torvalds [Sat, 3 Sep 2022 17:32:17 +0000 (10:32 -0700)]
Merge tag 'staging-6.0-rc4' of git://git./linux/kernel/git/gregkh/staging
Pull staging driver fixes from Greg KH:
"Here are three small staging driver fixes for 6.0-rc4 that resolve
some reported problems and add some a device id:
- new device id for r8188eu driver
- use-after-free bugfixes for the rtl8712 driver
- fix up firmware dependency problem for the r8188eu driver
All of these have been in linux-next for a while with no reported
problems"
* tag 'staging-6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging:
staging: rtl8712: fix use after free bugs
staging: r8188eu: Add Rosewill USB-N150 Nano to device tables
staging: r8188eu: add firmware dependency
Linus Torvalds [Sat, 3 Sep 2022 17:27:25 +0000 (10:27 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Here's a collection of primarily clk driver fixes, with a couple fixes
to the core framework.
We had to revert out a commit that affected boot on some devices that
have the CLK_OPS_PARENT_ENABLE flag set. It isn't critical to have
that fix so we'll try again next time.
Driver side fixes include:
- Plug an OF-node refcount bug in the TI clk driver
- Fix the error handling in the raspberry pi firmware get_rate so
that errors don't look like valid frequencies
- Avoid going out of bounds in the raspberry pi driver too if the
video firmware returns something we're not expecting"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
Revert "clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops"
clk: bcm: rpi: Show clock id limit in error case
clk: bcm: rpi: Add missing newline
clk: bcm: rpi: Prevent out-of-bounds access
clk: bcm: rpi: Fix error handling of raspberrypi_fw_get_rate
clk: core: Fix runtime PM sequence in clk_core_unprepare()
clk: core: Honor CLK_OPS_PARENT_ENABLE for clk gate ops
clk: ti: Fix missing of_node_get() ti_find_clock_provider()
Linus Torvalds [Sat, 3 Sep 2022 17:24:30 +0000 (10:24 -0700)]
Merge tag 'hwmon-for-v6.0-rc4' of git://git./linux/kernel/git/groeck/linux-staging
Pull hwmon fixes from Guenter Roeck:
- Fix out of bounds access in gpio-fan driver
- Fix VOUT margin caching in PMBus core
- Avoid error message after -EPROBE_DEFER from devm_regulator_register()
* tag 'hwmon-for-v6.0-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (gpio-fan) Fix array out of bounds access
hwmon: (pmbus) Fix vout margin caching
hwmon: (pmbus) Use dev_err_probe() to filter -EPROBE_DEFER error messages
Steven Price [Fri, 2 Sep 2022 11:26:12 +0000 (12:26 +0100)]
mm: pagewalk: Fix race between unmap and page walker
The mmap lock protects the page walker from changes to the page tables
during the walk. However a read lock is insufficient to protect those
areas which don't have a VMA as munmap() detaches the VMAs before
downgrading to a read lock and actually tearing down PTEs/page tables.
For users of walk_page_range() the solution is to simply call pte_hole()
immediately without checking the actual page tables when a VMA is not
present. We now never call __walk_page_range() without a valid vma.
For walk_page_range_novma() the locking requirements are tightened to
require the mmap write lock to be taken, and then walking the pgd
directly with 'no_vma' set.
This in turn means that all page walkers either have a valid vma, or
it's that special 'novma' case for page table debugging. As a result,
all the odd '(!walk->vma && !walk->no_vma)' tests can be removed.
Fixes:
dd2283f2605e ("mm: mmap: zap pages with read mmap_sem in munmap")
Reported-by: Jann Horn <jannh@google.com>
Signed-off-by: Steven Price <steven.price@arm.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Konstantin Khlebnikov <koct9i@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>