Greg Kroah-Hartman [Thu, 4 Feb 2021 15:53:13 +0000 (16:53 +0100)]
Merge tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux into char-misc-next
Oded writes:
This tag contains habanalabs driver changes for v5.12:
- Add feature called "staged command submissions". In this feature,
the driver allows the user to submit multiple command submissions
that describe a single pass on the deep learning graph. The driver
tracks the completion of the entire pass by the last stage CS.
- Update code to support the latest firmware image
- Optimizations and improvements to MMU code:
- Support page size that is not power-of-2
- Make the locks scheme simpler
- mmap areas in device configuration space to userspace
- Security fixes:
- Make ETR non-secured
- Remove access to kernel memory through debug-fs interface
- Remove access through PCI bar to SyncManager register block
in Gaudi
- Many small bug fixes
* tag 'misc-habanalabs-next-2021-01-27' of https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux: (41 commits)
habanalabs: update to latest hl_boot_if.h spec from F/W
habanalabs/gaudi: unmask HBM interrupts after handling
habanalabs: update SyncManager interrupt handling
habanalabs: fix ETR security issue
habanalabs: staged submission support
habanalabs: modify device_idle interface
habanalabs: add CS completion and timeout properties
habanalabs: add new mem ioctl op for mapping hw blocks
habanalabs: fix MMU debugfs related nodes
habanalabs: add user available interrupt to hw_ip
habanalabs: always try to use the hint address
CREDITS: update email address and home address
habanalabs: update email address in sysfs/debugfs docs
habanalabs: add security violations dump to debugfs
habanalabs: ignore F/W BMC errors in case no BMC present
habanalabs/gaudi: print sync manager SEI interrupt info
habanalabs: Use 'dma_set_mask_and_coherent()'
habanalabs/gaudi: remove PCI access to SM block
habanalabs: add driver support for internal cb scheduling
habanalabs: increment ctx ref from within a cs allocation
...
Yang Li [Mon, 1 Feb 2021 07:30:40 +0000 (15:30 +0800)]
misc: rtsx: Remove unneeded return variable
This patch removes unneeded return variables, using only
'0' instead.
It fixes the following warning detected by coccinelle:
./drivers/misc/cardreader/rtsx_pcr.c:1808:5-8: Unneeded variable: "ret".
Return "0" on line 1833.
Alexander Usyskin [Fri, 29 Jan 2021 12:07:46 +0000 (14:07 +0200)]
mei: fix transfer over dma with extended header
The size in header field for packet transferred over DMA
includes size of the extended header.
Include extended header in size check.
Add size and sanity checks on extended header.
Cc: <stable@vger.kernel.org> # v5.10+ Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20210129120752.850325-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Ohad Sharabi [Thu, 21 Jan 2021 20:25:52 +0000 (22:25 +0200)]
habanalabs: fix ETR security issue
ETR should always be non-secured as it is used by the users to record
profiling/trace data.
This patch fixes the configuration to match those requirements.
Ofir Bitton [Tue, 8 Dec 2020 11:47:05 +0000 (13:47 +0200)]
habanalabs: staged submission support
We introduce a new mechanism named Staged Submission.
This mechanism allows the user to send a whole CS in pieces.
Each CS will not require completion rather than the
last CS. Timeout timer will be triggered upon reception of the first
CS in group.
Ohad Sharabi [Sun, 17 Jan 2021 14:01:56 +0000 (16:01 +0200)]
habanalabs: modify device_idle interface
Currently this API uses single 64 bits mask for engines idle indication.
Recently, it was observed that more bits are needed for some ASICs.
This patch modifies the use of the idle mask and the idle_extensions
mask.
Ofir Bitton [Sun, 6 Dec 2020 15:18:02 +0000 (17:18 +0200)]
habanalabs: add CS completion and timeout properties
In order to support staged submission feature, we need to
distinguish on which command submission we want to receive
timeout and for which we want to receive completion.
farah kassabri [Tue, 12 Jan 2021 15:24:00 +0000 (17:24 +0200)]
habanalabs: fix MMU debugfs related nodes
In mmu debugfs node show un-scrambled physical addresses.
before read/write through data nodes, need to unscramble the
physical address before using it for pci transaction.
Ofir Bitton [Wed, 6 Jan 2021 13:40:37 +0000 (15:40 +0200)]
habanalabs: add user available interrupt to hw_ip
In order to support completions that arrive directly to the user,
the driver needs to supply the user with the first available msix
interrupt available.
farah kassabri [Mon, 11 Jan 2021 08:10:00 +0000 (10:10 +0200)]
habanalabs: always try to use the hint address
Currently hint address is ignored in case va block page size
is not power of 2. We need to support th user hint address also in this
case, but only if the hint address is aligned to page size.
Ofir Bitton [Tue, 5 Jan 2021 07:04:07 +0000 (09:04 +0200)]
habanalabs/gaudi: remove PCI access to SM block
Due to HW limitation we must remove all direct access to SM
registers, in order to do that we will access SM registers using
the HW QMANS.
When possible and no user context is present, we can directly access
the HW QMANS. Whenever there is an active user, driver will
prepare a pending command buffer list which will be sent upon
user submissions.
Ofir Bitton [Wed, 18 Nov 2020 13:46:57 +0000 (15:46 +0200)]
habanalabs: add driver support for internal cb scheduling
In order to support scnenarios in which driver needs access to
HW components but it cannot access them directly, we add support for
scheduling command buffers internally.
These command buffers will be transmitted upon next user command
submission context.
Ofir Bitton [Sun, 3 Jan 2021 12:13:06 +0000 (14:13 +0200)]
habanalabs: increment ctx ref from within a cs allocation
A CS must increment the relevant context reference count.
We want to increment the reference inside the CS allocation function
as opposed for today where we increment it outside.
This is logical since we want to avoid explicitly incrementing
the context every time we call the CS allocate function.
Ofir Bitton [Sun, 27 Dec 2020 15:09:09 +0000 (17:09 +0200)]
habanalabs: read device boot errors after cpucp is up
Boot cpu can report errors in various boot stages.
Current implementaion does not take into consideration errors
reported in late stages, hence we will check for errors at the most
late stage when fetching cpucp information.
Ofir Bitton [Thu, 31 Dec 2020 10:00:55 +0000 (12:00 +0200)]
habanalabs: report correct dram size in info ioctl
In case MMU is enabled, we must take MMU page size into
consideration when reporting dram size to the user.
This is because the MMU page size can be a value which is NOT
a power-of-2 value. As a result, the total DRAM size (which is always
a power-of-2 value) needed to be rounded-down.
Moti Haimovski [Wed, 18 Nov 2020 18:15:29 +0000 (20:15 +0200)]
habanalabs: support non power-of-2 DRAM phys page sizes
DRAM physical page sizes depend of the amount of HBMs available in
the device. this number is device-dependent and may also be subject
to binning when one or more of the DRAM controllers are found to
to be faulty. Such a configuration may lead to partitioning the DRAM
to non-power-of-2 pages.
To support this feature we also need to add infrastructure of address
scarmbling.
Ofir Bitton [Mon, 28 Dec 2020 16:28:08 +0000 (18:28 +0200)]
habanalabs: remove access to kernel memory using debugfs
Accessing kernel allocated memory through debugfs should not
be allowed as it introduces a security vulnerability.
We remove the option to read/write kernel memory for all asics.
Alon Mizrahi [Wed, 23 Dec 2020 15:53:17 +0000 (17:53 +0200)]
habanalabs: return dram virtual address in info ioctl
When working with DRAM MMU, we should supply the userspace with the
virtual start address of the DRAM instead of the physical one. This
is because the physical one has no meaning for the user as he only
knows the virtual address range.
Alon Mizrahi [Thu, 3 Dec 2020 15:32:19 +0000 (17:32 +0200)]
habanalabs: replace WARN/WARN_ON with dev_crit in driver
Often WARN is defined in data-centers as BUG and we would like to
avoid hanging the entire server on some internal error of the driver
(important as it might be).
Ohad Sharabi [Tue, 1 Dec 2020 12:06:27 +0000 (14:06 +0200)]
habanalabs/goya: 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.
Ioana Ciornei [Thu, 14 Jan 2021 17:07:52 +0000 (19:07 +0200)]
bus: fsl-mc: add autorescan sysfs
Add the autorescan sysfs in order to enable/disable the DPRC IRQs on
which automatic rescan of the bus is performed. This is important when
dynamic creation of objects is needed to happen in a timely manner because
object creation can be bundled together.
Ioana Ciornei [Thu, 14 Jan 2021 17:07:50 +0000 (19:07 +0200)]
bus: fsl-mc: add fsl-mc userspace support
Adding userspace support for the MC (Management Complex) means exporting
an ioctl capable device file representing the root resource container.
This new functionality in the fsl-mc bus driver intends to provide
userspace applications an interface to interact with the MC firmware.
Commands that are composed in userspace are sent to the MC firmware
through the FSL_MC_SEND_MC_COMMAND ioctl. By default the implicit MC
I/O portal is used for this operation, but if the implicit one is busy,
a dynamic portal is allocated and then freed upon execution.
The command received through the ioctl interface is checked against a
known whitelist of accepted MC commands. Commands that attempt a change
in hardware configuration will need CAP_NET_ADMIN, while commands used
in debugging do not need it.
Davidlohr Bueso [Fri, 15 Jan 2021 00:20:14 +0000 (16:20 -0800)]
platform/goldfish: Convert pipe tasklet to threaded irq
Tasklets have long been deprecated as being too heavy on the system
by running in irq context - and this is not a performance critical
path. If a higher priority process wants to run, it must wait for
the tasklet to finish before doing so. A more suitable equivalent
is to converted to threaded irq instead and deal with the signaled
pipes in task context.
Alexander Kapshuk [Fri, 8 Jan 2021 11:26:26 +0000 (13:26 +0200)]
ver_linux: Eliminate duplicate code in ldconfig processing logic
The code that acquires the version strings for libc and libcpp is
identical, as is the printversion call. The only difference being the
name of the library being printed.
Refactor the code by unifying the bits that are common to both libraries.
zhenwei pi [Sun, 10 Jan 2021 11:53:57 +0000 (19:53 +0800)]
misc: pvpanic: introduce device capability
According to pvpanic spec:
https://git.qemu.org/?p=qemu.git;a=blob_plain;f=docs/specs/pvpanic.txt
The guest should determine pvpanic capability by RDPT, so initialize
capability during device probing. There is no need to register panic
notifier callback function if no events supported.
Before sending event to host side, check capability firstly.
Suggested by Greg KH, use sysfs to expose capability to user space,
also add new sysfs attribute in document.
Andy Shevchenko [Fri, 22 Jan 2021 11:43:58 +0000 (13:43 +0200)]
misc: pti: Remove driver for deprecated platform
Intel Moorestown and Medfield are quite old Intel Atom based
32-bit platforms, which were in limited use in some Android phones,
tablets and consumer electronics more than eight years ago.
There are no bugs or problems ever reported outside from Intel
for breaking any of that platforms for years. It seems no real
users exists who run more or less fresh kernel on it. The commit 05f4434bc130 ("ASoC: Intel: remove mfld_machine") also in align
with this theory.
Due to above and to reduce a burden of supporting outdated drivers
we remove the support of outdated platforms completely.
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Link: https://lore.kernel.org/r/20210122114358.39299-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Samuel Thibault [Tue, 26 Jan 2021 22:21:45 +0000 (23:21 +0100)]
speakup: Reference synth from tty and tty from synth
We do not actually need speakup_tty and spk_ttyio_synth global
variables, the synth can store the pointer to the tty, and the tty
ldisc_data can store the pointer to the synth.
Along the way, we can clench the initialization of the synth and the
creation of the tty, so that tty is never NULL. Even if the device
disappears (e.g. USB unplug), the tty structure will still be there,
and we automatically stop speakup in the spk_ttyio_out error handler
but keep tty until the user cleans things up.
Michal Simek [Mon, 18 Jan 2021 08:48:56 +0000 (09:48 +0100)]
firmware: xilinx: Remove PM_API_MAX value
There is no reason to keep PM_API_MAX around. The commit acfdd18591ea
("firmware: xilinx: Use hash-table for api feature check") removed its
usage that's why it is not used anywhere now.
Tom Rix [Sat, 23 Jan 2021 16:00:03 +0000 (08:00 -0800)]
sgi-xp: remove h from printk format specifier
This change fixes the checkpatch warning described in this commit
commit cbacb5ab0aa0 ("docs: printk-formats: Stop encouraging use of
unnecessary %h[xudi] and %hh[xudi]")
Standard integer promotion is already done and %hx and %hhx is useless
so do not encourage the use of %hh[xudi] or %h[xudi].
The only usage of these is to put their addresses in arrays of pointers
to const attribute_groups. Make them const to allow the compiler to put
them in read-only memory.
Jorgen Hansen [Wed, 20 Jan 2021 16:33:40 +0000 (08:33 -0800)]
VMCI: Enforce queuepair max size for IOCTL_VMCI_QUEUEPAIR_ALLOC
When create the VMCI queue pair tracking data structures on the host
side, the IOCTL for creating the VMCI queue pair didn't validate
the queue pair size parameters. This change adds checks for this.
This avoids a memory allocation issue in qp_host_alloc_queue, as
reported by nslusarek@gmx.net. The check in qp_host_alloc_queue
has also been updated to enforce the maximum queue pair size
as defined by VMCI_MAX_GUEST_QP_MEMORY.
The fix has been verified using sample code supplied by
nslusarek@gmx.net.
Jorgen Hansen [Wed, 20 Jan 2021 16:32:40 +0000 (08:32 -0800)]
VMCI: Use set_page_dirty_lock() when unregistering guest memory
When the VMCI host support releases guest memory in the case where
the VM was killed, the pinned guest pages aren't locked. Use
set_page_dirty_lock() instead of set_page_dirty().
Testing done: Killed VM while having an active VMCI based vSocket
connection and observed warning from ext4. With this fix, no
warning was observed. Ran various vSocket tests without issues.
Jorgen Hansen [Wed, 20 Jan 2021 16:32:20 +0000 (08:32 -0800)]
VMCI: Stop log spew when qp allocation isn't possible
VMCI queue pair allocation is disabled, if a VM is in FT mode. In
these cases, VMware Tools may still once in a while attempt to
create a vSocket stream connection, resulting in multiple
warnings in the kernel logs. Therefore downgrade the error log to
a debug log.
Scott Branden [Wed, 20 Jan 2021 17:58:24 +0000 (09:58 -0800)]
misc: bcm-vk: reset_pid support
Add reset support via ioctl.
Kill user processes that are open when VK card is reset.
If a particular PID has issued the reset request do not kill that process
as it issued the ioctl.
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-11-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:21 +0000 (09:58 -0800)]
misc: bcm-vk: add ioctl load_image
Add ioctl support to issue load_image operation to VK card.
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-8-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:20 +0000 (09:58 -0800)]
misc: bcm-vk: add open/release
Add open/release to replace private data with context for other methods
to use. Reason for the context is because it is allowed for multiple
sessions to open sysfs. For each file open, when upper layer queries the
response, only those that are tied to a specified open should be returned.
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-7-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:19 +0000 (09:58 -0800)]
misc: bcm-vk: add triggers when host panic or reboots to notify card
Pass down an interrupt to card in case of panic or reboot so
that card can take appropriate action to perform a clean reset.
Uses kernel notifier block either directly (register on panic list),
or implicitly (add shutdown method for PCI device).
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-6-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:18 +0000 (09:58 -0800)]
misc: bcm-vk: add misc device to Broadcom VK driver
Add misc device base support to create and remove devnode.
Additional misc functions for open/read/write/release/ioctl/sysfs, etc
will be added in follow on commits to allow for individual review.
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-5-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:17 +0000 (09:58 -0800)]
misc: bcm-vk: add autoload support
Add support to load and boot images on card automatically.
The kernel module parameter auto_load can be passed in as false to disable
such support on probe.
As well, nr_scratch_pages can be specified to allocate more or less scratch
memory on init as needed for desired card operation.
Co-developed-by: Desmond Yan <desmond.yan@broadcom.com> Co-developed-by: James Hu <james.hu@broadcom.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Desmond Yan <desmond.yan@broadcom.com> Signed-off-by: James Hu <james.hu@broadcom.com> Signed-off-by: Scott Branden <scott.branden@broadcom.com> Link: https://lore.kernel.org/r/20210120175827.14820-4-scott.branden@broadcom.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Scott Branden [Wed, 20 Jan 2021 17:58:16 +0000 (09:58 -0800)]
misc: bcm-vk: add Broadcom VK driver
Add initial version of Broadcom VK driver to enumerate PCI device IDs
of Valkyrie and Viper device IDs.
VK based cards provide real-time high performance, high throughput,
low latency offload compute engine operations.
They are used for multiple parallel offload tasks as:
audio, video and image processing and crypto operations.
Further commits add additional features to driver beyond probe/remove.
Scott Branden [Wed, 20 Jan 2021 17:58:15 +0000 (09:58 -0800)]
bcm-vk: add bcm_vk UAPI
Add user space api for bcm-vk driver.
Provide ioctl api to load images and issue reset command to card.
FW status registers in PCI BAR space also defined as part
of API so that user space is able to interpret these memory locations
as needed via direct PCIe access.
Linus Torvalds [Sun, 24 Jan 2021 20:30:14 +0000 (12:30 -0800)]
Merge tag 'io_uring-5.11-2021-01-24' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Still need a final cancelation fix that isn't quite done done,
expected in the next day or two. That said, this contains:
- Wakeup fix for IOPOLL requests
- SQPOLL split close op handling fix
- Ensure that any use of io_uring fd itself is marked as inflight
- Short non-regular file read fix (Pavel)
- Fix up bad false positive warning (Pavel)
- SQPOLL fixes (Pavel)
- In-flight removal fix (Pavel)"
* tag 'io_uring-5.11-2021-01-24' of git://git.kernel.dk/linux-block:
io_uring: account io_uring internal files as REQ_F_INFLIGHT
io_uring: fix sleeping under spin in __io_clean_op
io_uring: fix short read retries for non-reg files
io_uring: fix SQPOLL IORING_OP_CLOSE cancelation state
io_uring: fix skipping disabling sqo on exec
io_uring: fix uring_flush in exit_files() warning
io_uring: fix false positive sqo warning on flush
io_uring: iopoll requests should also wake task ->in_idle state
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