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2019-11-21habanalabs: make code more conciseOded Gabbay1-13/+9
Instead of doing if inside if, just write them with && operator. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: use defines for F/W filesOded Gabbay1-6/+5
Make the code more concise and maintainable by using defines for the F/W files. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: remove prints on successful device initializationOded Gabbay2-7/+1
Successful device initialization is mentioned in kernel log with the message "Successfully added device to habanalabs driver". There is no point of spamming the log with additional messages about successful queue testing, which are implied by the above mentioned message. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: remove unnecessary checksOmer Shpigelman1-31/+9
Now that the VA block free list is not updated on context close in order to optimize this flow, no need in the sanity checks of the list contents as these will fail for sure. In addition, remove the "context closing with VA in use" print during hard reset as this situation is a side effect of the failure that caused the hard reset. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: invalidate MMU cache only onceOmer Shpigelman1-1/+11
Reduce context close time by performing MMU cache invalidation once at the end of the unmap loop rather in each iteration, in order to avoid hard reset with open contexts. Reset with open contexts can potentially lead to a kernel crash as the generic pool of the MMU hops is destroyed while it is not empty because some unmap operations are not done. The commit affect mainly when running on simulator. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: skip VA block list update in reset flowOmer Shpigelman1-10/+20
Reduce context close time by skipping the VA block free list update in order to avoid hard reset with open contexts. Reset with open contexts can potentially lead to a kernel crash as the generic pool of the MMU hops is destroyed while it is not empty because some unmap operations are not done. The commit affect mainly when running on simulator. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: optimize MMU unmapOmer Shpigelman1-6/+13
Reduce context close time by skipping hash table lookup if possible in order to avoid hard reset with open contexts. Reset with open contexts can potentially lead to a kernel crash as the generic pool of the MMU hops is destroyed while it is not empty because some unmap operations are not done. This commit affect mainly when running on simulator. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: prevent read/write from/to the device during hard resetOmer Shpigelman1-2/+4
During hard reset we should not access the device except of necessary reset operations because the device might be stuck or unresponsive. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: split MMU properties to PCI/DRAMOmer Shpigelman6-148/+268
Split the properties used for MMU mappings to DRAM and PCI (host) types. This is a prerequisite for future ASICs support. Note that in Goya ASIC, the PMMU and DMMU are the same (except of page sizes) as only one MMU mechanism is used for both of the mapping types. Hence this patch should not have any effect on current behavior. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: re-factor MMU masks and documentationOmer Shpigelman3-25/+23
Some cosmetics around the MMU code to make it more self-explanatory. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: type specific MMU cache invalidationOmer Shpigelman3-9/+12
Add the ability to invalidate the necessary MMU cache only. This ability is a prerequisite for future ASICs support. Note that in Goya ASIC, a single cache is used for both host/DRAM mappings and hence this patch should not have any effect on current behavior. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: re-factor memory module codeOmer Shpigelman3-129/+158
Some of the functions in the memory module code were too long and/or contained multiple operations that are not always done together. Re-factor the code by dividing those functions to smaller functions which are more readable and maintainable. Signed-off-by: Omer Shpigelman <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: export uapi defines to user-spaceOded Gabbay1-4/+0
The two defines that control the maximum size of a command buffer and the maximum number of JOBS per CS need to be exported to the user as they are part of the API towards user-space. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: don't print error when queues are fullOded Gabbay1-3/+4
If the queues are full and we return -EAGAIN to the user, there is no need to print an error, as that case isn't an error and the user is expected to re-submit the work. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: increase max jobs number to 512Oded Gabbay1-1/+1
In training, there is a need for a large amount of patching to the recipe. This results in many command buffers contains a lot of DMA packets. The number of command buffers per CS is larger than the current maximum of 64, which is an arbitrary number that is enough for inference, but it has no real affect on the code and/or resources of the host machine. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: set ETR as non-securedOded Gabbay2-1/+5
ETR should always be non-secured as it is used by the users to record profiling/trace data. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: use registers name defines for ETR blockOded Gabbay3-26/+140
We have a single ETR block in the SOC, so use explicit register name defines for initializing this block. This makes it more readable and maintainable. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: read F/W versions before failureOded Gabbay1-4/+4
Move the read of the F/W boot versions before exiting on possible failures of the F/W boot. This will help debug boot failures as we will be able to know the F/W boot version. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Omer Shpigelman <[email protected]>
2019-11-21habanalabs: expose card name in INFO IOCTLOded Gabbay2-2/+10
To enable userspace processes, e.g. management utilities, to display the card name to the user, add the card name property to the HW_IP structure that is copied to the user in the INFO IOCTL. Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: remove set but not used variable 'qman_base_addr'YueHaibing1-4/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/misc/habanalabs/goya/goya.c: In function 'goya_init_mme_cmdq': drivers/misc/habanalabs/goya/goya.c:1536:6: warning: variable 'qman_base_addr' set but not used [-Wunused-but-set-variable] It is never used, so can be removed. Reported-by: Hulk Robot <[email protected]> Signed-off-by: YueHaibing <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: add opcode to INFO IOCTL to return clock rateOded Gabbay5-1/+60
Add a new opcode to the INFO IOCTL to allow the user application to retrieve the ASIC's current and maximum clock rate. The rate is returned in MHz. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Tomer Tayar <[email protected]>
2019-11-21habanalabs: set TPC Icache to 16 cache linesOded Gabbay2-3/+7
Reduce latency to memory during TPC kernel execution. Signed-off-by: Oded Gabbay <[email protected]> Reviewed-by: Tomer Tayar <[email protected]>
2019-11-21habanalabs: Add a new H/W queue typeTomer Tayar5-101/+308
This patch adds a support for a new H/W queue type. This type of queue is for DMA and compute engines jobs, for which completion notification are sent by H/W. Command buffer for this queue can be created either through the CB IOCTL and using the retrieved CB handle, or by preparing a buffer on the host or device SRAM/DRAM, and using the device address to that buffer. The patch includes the handling of the 2 options, as well as the initialization of the H/W queue and its jobs scheduling. Signed-off-by: Tomer Tayar <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: Mark queue as expecting CB handle or addressTomer Tayar3-1/+9
Jobs on some queues must be provided with a handle to a driver command buffer object, while for other queues, jobs must be provided with an address to a command buffer. Currently the distinction is done based on the queue type, which is less flexible if the same queue type behaves differently on different types of ASICs. This patch adds a new queue property for this target, which is configured per queue type per ASIC type. Signed-off-by: Tomer Tayar <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: Fix typosTomer Tayar2-3/+3
s/paerser/parser/ s/requeusted/requested/ s/an JOB/a JOB/ Signed-off-by: Tomer Tayar <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: remove set but not used variable 'ctx'YueHaibing1-2/+0
Fixes gcc '-Wunused-but-set-variable' warning: drivers/misc/habanalabs/device.c: In function hpriv_release: drivers/misc/habanalabs/device.c:45:17: warning: variable ctx set but not used [-Wunused-but-set-variable] It is never used since commit eb7caf84b029 ("habanalabs: maintain a list of file private data objects") Reported-by: Hulk Robot <[email protected]> Signed-off-by: YueHaibing <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-21habanalabs: handle F/W failure for sensor initializationOded Gabbay2-0/+7
In case the F/W fails to initialize the thermal sensors, print an appropriate error message to kernel log and fail the device initialization. Reviewed-by: Tomer Tayar <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2019-11-20vsock/vmci: make vmci_vsock_cb_host_called staticMao Wenan1-1/+1
When using make C=2 drivers/misc/vmw_vmci/vmci_driver.o to compile, below warning can be seen: drivers/misc/vmw_vmci/vmci_driver.c:33:6: warning: symbol 'vmci_vsock_cb_host_called' was not declared. Should it be static? This patch make symbol vmci_vsock_cb_host_called static. Fixes: b1bba80a4376 ("vsock/vmci: register vmci_transport only when VMCI guest/host are active") Reported-by: Hulk Robot <[email protected]> Signed-off-by: Mao Wenan <[email protected]> Reported-by: kbuild test robot <[email protected]> Signed-off-by: Stefano Garzarella <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-11-20misc: Fix Kconfig indentationKrzysztof Kozlowski1-8/+8
Adjust indentation from spaces to tab (+optional two spaces) as in coding style with command like: $ sed -e 's/^ /\t/' -i */Kconfig Signed-off-by: Krzysztof Kozlowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-16mei: bus: add more client attributes to sysfsAlexander Usyskin2-0/+69
Export more client attributes via sysfs that are usually obtained upon connection. In some cases, for example a monitoring application may wish to know the attributes without actually performing the connection. Added attributes: max number of connections, fixed address, max message length. Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-14vsock/vmci: register vmci_transport only when VMCI guest/host are activeStefano Garzarella4-0/+78
To allow other transports to be loaded with vmci_transport, we register the vmci_transport as G2H or H2G only when a VMCI guest or host is active. To do that, this patch adds a callback registered in the vmci driver that will be called when the host or guest becomes active. This callback will register the vmci_transport in the VSOCK core. Cc: Jorgen Hansen <[email protected]> Signed-off-by: Stefano Garzarella <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2019-11-14Merge tag 'at24-v5.5-updates-for-wolfram' of ↵Wolfram Sang1-3/+6
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.5 at24: updates for v5.5 - print a proper log message for read-only EEPROMs
2019-11-14misc: rtsx: Add support for RTS5261Rui Feng5-8/+1063
Add support for new chip rts5261. In order to support rts5261, the definitions of some internal registers and workflow have to be modified and are different from its predecessors. So we need this patch to ensure RTS5261 can work. Signed-off-by: Rui Feng <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-07mei: add trc detection register to sysfsAlexander Usyskin6-3/+76
The glitch detection HW (TRC) save it status information into TRC status register. Make it available to user-space via read-only sysfs file. The TRC register is availab for PCH15 gen and newer, for older platforms reading the sysfs file will fail with EOPNOTSUPP. Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-07mei: abstract fw status register read.Tomas Winkler6-17/+41
This is to allow working with mei devices embedded within another pci device, where mei device is represented as a platform child device and fw status registers are not necessarily resident in the device pci config space. Bump the copyright year to 2019 on the modified files. Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-07mei: me: store irq number in the hw struct.Alexander Usyskin3-2/+5
Store irq number in hw struct to by used by synchronize_irq(). This is to allow working with mei devices embedded within another pci devices, via MFD framework, where mei device is represented as a platform device. Bump the copyright year to 2019 on hw-me.c and hw-me.h Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-07mei: me: mei_me_dev_init() use struct device instead of struct pci_dev.Tomas Winkler3-8/+8
It's enough to bind mei_device with associated 'struct device' instead of actual 'struct pci_dev'. This is to allow working with mei devices embedded within another pci device, usually via MFD framework, where mei device is represented as a platform device. Bump copyright year to 2019 on effected files. Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-05misc: sram: use devm_platform_ioremap_resource_wc()Bartosz Golaszewski1-20/+8
Use the new devm_platform_ioremap_resource_wc() helper instead of devm_ioremap_wc() combinded with a call to platform_get_resource(). Also use devm_platform_ioremap_resource() where applicable. Signed-off-by: Bartosz Golaszewski <[email protected]> Reviewed-by: Arnd Bergmann <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-05mei: me: add comet point V device idAlexander Usyskin2-0/+2
Comet Point (Comet Lake) V device id. Cc: <[email protected]> Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-11-05mei: bus: prefix device names on bus with the bus nameAlexander Usyskin1-4/+5
Add parent device name to the name of devices on bus to avoid device names collisions for same client UUID available from different MEI heads. Namely this prevents sysfs collision under /sys/bus/mei/device/ In the device part leave just UUID other parameters that are required for device matching are not required here and are just bloating the name. Cc: <[email protected]> Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Tomas Winkler <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-23compat_ioctl: use correct compat_ptr() translation in driversArnd Bergmann2-29/+2
A handful of drivers all have a trivial wrapper around their ioctl handler, but don't call the compat_ptr() conversion function at the moment. In practice this does not matter, since none of them are used on the s390 architecture and for all other architectures, compat_ptr() does not do anything, but using the new compat_ptr_ioctl() helper makes it more correct in theory, and simplifies the code. I checked that all ioctl handlers in these files are compatible and take either pointer arguments or no argument. Acked-by: Al Viro <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Andrew Donnellan <[email protected]> Acked-by: Felipe Balbi <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2019-10-23compat_ioctl: move more drivers to compat_ptr_ioctlArnd Bergmann1-1/+1
The .ioctl and .compat_ioctl file operations have the same prototype so they can both point to the same function, which works great almost all the time when all the commands are compatible. One exception is the s390 architecture, where a compat pointer is only 31 bit wide, and converting it into a 64-bit pointer requires calling compat_ptr(). Most drivers here will never run in s390, but since we now have a generic helper for it, it's easy enough to use it consistently. I double-checked all these drivers to ensure that all ioctl arguments are used as pointers or are ignored, but are not interpreted as integer values. Acked-by: Jason Gunthorpe <[email protected]> Acked-by: Daniel Vetter <[email protected]> Acked-by: Mauro Carvalho Chehab <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: David Sterba <[email protected]> Acked-by: Darren Hart (VMware) <[email protected]> Acked-by: Jonathan Cameron <[email protected]> Acked-by: Bjorn Andersson <[email protected]> Acked-by: Dan Williams <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2019-10-23compat_ioctl: move drivers to compat_ptr_ioctlArnd Bergmann1-21/+1
Each of these drivers has a copy of the same trivial helper function to convert the pointer argument and then call the native ioctl handler. We now have a generic implementation of that, so use it. Acked-by: Greg Kroah-Hartman <[email protected]> Acked-by: Michael S. Tsirkin <[email protected]> Acked-by: David S. Miller <[email protected]> Acked-by: Jarkko Sakkinen <[email protected]> Reviewed-by: Jarkko Sakkinen <[email protected]> Reviewed-by: Jason Gunthorpe <[email protected]> Reviewed-by: Jiri Kosina <[email protected]> Reviewed-by: Stefan Hajnoczi <[email protected]> Reviewed-by: Cornelia Huck <[email protected]> Signed-off-by: Arnd Bergmann <[email protected]>
2019-10-23Merge v5.4-rc4 into drm-nextDaniel Vetter7-13/+51
Thierry needs fd70c7755bf0 ("drm/bridge: tc358767: fix max_tu_symbol value") to be able to merge his dp_link patch series. Some adjacent changes conflicts, plus some clashes in i915 due to cherry-picking and git trying to be helpful and leaving both versions in. Signed-off-by: Daniel Vetter <[email protected]>
2019-10-14PCI: Add PCI_STD_NUM_BARS for the number of standard BARsDenis Efremov1-4/+4
Code that iterates over all standard PCI BARs typically uses PCI_STD_RESOURCE_END. However, that requires the unusual test "i <= PCI_STD_RESOURCE_END" rather than something the typical "i < PCI_STD_NUM_BARS". Add a definition for PCI_STD_NUM_BARS and change loops to use the more idiomatic C style to help avoid fencepost errors. Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Denis Efremov <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Sebastian Ott <[email protected]> # arch/s390/ Acked-by: Bartlomiej Zolnierkiewicz <[email protected]> # video/fbdev/ Acked-by: Gustavo Pimentel <[email protected]> # pci/controller/dwc/ Acked-by: Jack Wang <[email protected]> # scsi/pm8001/ Acked-by: Martin K. Petersen <[email protected]> # scsi/pm8001/ Acked-by: Ulf Hansson <[email protected]> # memstick/
2019-10-14Merge 5.4-rc3 into char-misc-nextGreg Kroah-Hartman7-13/+51
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-10misc: Use the correct style for SPDX License IdentifierNishad Kamdar2-3/+3
This patch corrects the SPDX License Identifier style in header files for Miscellaneous device drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used) Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <[email protected]> Signed-off-by: Nishad Kamdar <[email protected]> Link: https://lore.kernel.org/r/20190920155931.GA6251@nishad Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-10ocxl: Use the correct style for SPDX License IdentifierNishad Kamdar2-2/+2
This patch corrects the SPDX License Identifier style in header files for Open Coherent Accelerator (OCXL) compatible device drivers. For C header files Documentation/process/license-rules.rst mandates C-like comments (opposed to C source files where C++ style should be used) Changes made by using a script provided by Joe Perches here: https://lkml.org/lkml/2019/2/7/46. Suggested-by: Joe Perches <[email protected]> Signed-off-by: Nishad Kamdar <[email protected]> Acked-by: Andrew Donnellan <[email protected]> Link: https://lore.kernel.org/r/20190920161826.GA6894@nishad Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-10misc: fastrpc: revert max init file size back to 2MBJorge Ramirez-Ortiz1-1/+1
With the integration of the mmap/unmap functionality, it is no longer necessary to allow large memory allocations upfront since they can be handled during runtime. Tested on QCS404 with CDSP Neural Processing test suite. Signed-off-by: Jorge Ramirez-Ortiz <[email protected]> Reviewed-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Srinivas Kandagatla <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-10-10misc: fastrpc: handle interrupted contextsJorge Ramirez-Ortiz1-6/+7
Buffers owned by a context that has been interrupted either by a signal or a timeout might still be being accessed by the DSP. delegate returning the associated memory to a later time when the device is released. Signed-off-by: Jorge Ramirez-Ortiz <[email protected]> Reviewed-by: Srinivas Kandagatla <[email protected]> Signed-off-by: Srinivas Kandagatla <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
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