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2020-12-09lkdtm: don't move ctors to .rodataMark Rutland
When building with KASAN and LKDTM, clang may implictly generate an asan.module_ctor function in the LKDTM rodata object. The Makefile moves the lkdtm_rodata_do_nothing() function into .rodata by renaming the file's .text section to .rodata, and consequently also moves the ctor function into .rodata, leading to a boot time crash (splat below) when the ctor is invoked by do_ctors(). Let's prevent this by marking the function as noinstr rather than notrace, and renaming the file's .noinstr.text to .rodata. Marking the function as noinstr will prevent tracing and kprobes, and will inhibit any undesireable compiler instrumentation. The ctor function (if any) will be placed in .text and will work correctly. Example splat before this patch is applied: [ 0.916359] Unable to handle kernel execute from non-executable memory at virtual address ffffa0006b60f5ac [ 0.922088] Mem abort info: [ 0.922828] ESR = 0x8600000e [ 0.923635] EC = 0x21: IABT (current EL), IL = 32 bits [ 0.925036] SET = 0, FnV = 0 [ 0.925838] EA = 0, S1PTW = 0 [ 0.926714] swapper pgtable: 4k pages, 48-bit VAs, pgdp=00000000427b3000 [ 0.928489] [ffffa0006b60f5ac] pgd=000000023ffff003, p4d=000000023ffff003, pud=000000023fffe003, pmd=0068000042000f01 [ 0.931330] Internal error: Oops: 8600000e [#1] PREEMPT SMP [ 0.932806] Modules linked in: [ 0.933617] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 5.10.0-rc7 #2 [ 0.935620] Hardware name: linux,dummy-virt (DT) [ 0.936924] pstate: 40400005 (nZcv daif +PAN -UAO -TCO BTYPE=--) [ 0.938609] pc : asan.module_ctor+0x0/0x14 [ 0.939759] lr : do_basic_setup+0x4c/0x70 [ 0.940889] sp : ffff27b600177e30 [ 0.941815] x29: ffff27b600177e30 x28: 0000000000000000 [ 0.943306] x27: 0000000000000000 x26: 0000000000000000 [ 0.944803] x25: 0000000000000000 x24: 0000000000000000 [ 0.946289] x23: 0000000000000001 x22: 0000000000000000 [ 0.947777] x21: ffffa0006bf4a890 x20: ffffa0006befb6c0 [ 0.949271] x19: ffffa0006bef9358 x18: 0000000000000068 [ 0.950756] x17: fffffffffffffff8 x16: 0000000000000000 [ 0.952246] x15: 0000000000000000 x14: 0000000000000000 [ 0.953734] x13: 00000000838a16d5 x12: 0000000000000001 [ 0.955223] x11: ffff94000da74041 x10: dfffa00000000000 [ 0.956715] x9 : 0000000000000000 x8 : ffffa0006b60f5ac [ 0.958199] x7 : f9f9f9f9f9f9f9f9 x6 : 000000000000003f [ 0.959683] x5 : 0000000000000040 x4 : 0000000000000000 [ 0.961178] x3 : ffffa0006bdc15a0 x2 : 0000000000000005 [ 0.962662] x1 : 00000000000000f9 x0 : ffffa0006bef9350 [ 0.964155] Call trace: [ 0.964844] asan.module_ctor+0x0/0x14 [ 0.965895] kernel_init_freeable+0x158/0x198 [ 0.967115] kernel_init+0x14/0x19c [ 0.968104] ret_from_fork+0x10/0x30 [ 0.969110] Code: 00000003 00000000 00000000 00000000 (00000000) [ 0.970815] ---[ end trace b5339784e20d015c ]--- Cc: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Kees Cook <keescook@chromium.org> Acked-by: Kees Cook <keescook@chromium.org> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Link: https://lore.kernel.org/r/20201207170533.10738-1-mark.rutland@arm.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07mei: bus: enable pavp device.Tomas Winkler
Enable protected audio video path client on mei client bus. Cc: Sean Z Huang <sean.z.huang@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20201116125612.1660971-2-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07mei: bus: add vtag supportAlexander Usyskin
Add API to support vtag in communication on mei bus. Add mei_cldev_send_vtag, mei_cldev_recv_vtag and mei_cldev_recv_nonblock_vtag functions to allow sending a message with vtag set and to receive vtag of an incoming message. Cc: Sean Z Huang <sean.z.huang@intel.com> Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20201116125612.1660971-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-07Merge 5.10-rc7 into char-misc-nextGreg Kroah-Hartman
We want the fixes in here, and this resolves a merge issue with drivers/misc/habanalabs/common/memory.c. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-06Revert "mei: virtio: virtualization frontend driver"Michael S. Tsirkin
This reverts commit d162219c655c8cf8003128a13840d6c1e183fb80. The device uses a VIRTIO device ID out of a not-for-production range. Releasing Linux using an ID out of this range will make it conflict with development setups. An official request to reserve an ID for an MEI device is yet to be submitted to the virtio TC, thus there's no chance it will be reserved and fixed in time before the next release. Once requested it usually takes 2-3 weeks to land in the spec, which means the device can be supported with the official ID in the next Linux version if contributors act quickly. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Cc: Tomas Winkler <tomas.winkler@intel.com> Cc: Alexander Usyskin <alexander.usyskin@intel.com> Cc: Wang Yu <yu1.wang@intel.com> Cc: Liu Shuo <shuo.a.liu@intel.com> Link: https://lore.kernel.org/r/20201205193625.469773-1-mst@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-12-04misc: eeprom: at24: fix NVMEM name with custom AT24 device nameDiego Santa Cruz
When the "label" property is set on the AT24 EEPROM the NVMEM devid is set to NVMEM_DEVID_NONE, but it is not effective since there is a leftover line setting it back to NVMEM_DEVID_AUTO a few lines after. Fixes: 61f764c307f6 ("eeprom: at24: Support custom device names for AT24 EEPROMs") Signed-off-by: Diego Santa Cruz <Diego.SantaCruz@spinetix.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-12-04lkdtm/powerpc: Add SLB multihit testGanesh Goudar
To check machine check handling, add support to inject slb multihit errors. Co-developed-by: Mahesh Salgaonkar <mahesh@linux.ibm.com> Signed-off-by: Mahesh Salgaonkar <mahesh@linux.ibm.com> Signed-off-by: Ganesh Goudar <ganeshgr@linux.ibm.com> [mpe: Use CONFIG_PPC_BOOK3S_64 to fix compile errors reported by lkp@intel.com] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201130083057.135610-1-ganeshgr@linux.ibm.com
2020-12-04ocxl: Add new kernel tracesChristophe Lombard
Add specific kernel traces which provide information on mmu notifier and on pages range. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-6-clombard@linux.vnet.ibm.com
2020-12-04ocxl: Add mmu notifierChristophe Lombard
Add invalidate_range mmu notifier, when required (ATSD access of MMIO registers is available), to initiate TLB invalidation commands. For the time being, the ATSD0 set of registers is used by default. The pasid and bdf values have to be configured in the Process Element Entry. The PEE must be set up to match the BDF/PASID of the AFU. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-5-clombard@linux.vnet.ibm.com
2020-12-04ocxl: Update the Process Element EntryChristophe Lombard
To complete the MMIO based mechanism, the fields: PASID, bus, device and function of the Process Element Entry have to be filled. (See OpenCAPI Power Platform Architecture document) Hypervisor Process Element Entry Word 0 1 .... 7 8 ...... 12 13 ..15 16.... 19 20 ........... 31 0 OSL Configuration State (0:31) 1 OSL Configuration State (32:63) 2 PASID | Reserved 3 Bus | Device |Function | Reserved 4 Reserved 5 Reserved 6 .... Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201125155013.39955-4-clombard@linux.vnet.ibm.com
2020-11-30habanalabs: Add CB IOCTL opcode to retrieve CB informationTomer Tayar
Add a new CB IOCTL opcode that enables a user to query about a CB and get its usage count. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Modify the cs_cnt of a CB to be atomicTomer Tayar
Modify the CS counter of a CB to be atomic, so no locking is required when it is being modified or read. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Add mask for CS type bits in CS flagsTomer Tayar
hl_cs_sanity_checks() extracts the CS type bits of the CS flags, by masking out the non-type bits. To save the need for updating the function whenever new bits for non-type flags are added, add an explicit mask for the CS type bits. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: change messages to debug levelOded Gabbay
Some messages should be changed to debug mode as we want to keep minimal prints during normal operation of the device. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: free host huge va_range if not usedOfir Bitton
If huge range is not valid, driver uses the host range also for huge page allocations, but driver never frees its allocation. This introduces a memory leak every time a user closes its context. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: handle reset when f/w is in prebootOded Gabbay
Currently, if the f/w is in preboot/u-boot they don't perform the new reset mechanism. Therefore, the driver needs to reset the device. To prevent reset of PCI_IF, the driver needs to first configure the reset units. If the security is enabled, the driver can't configure the reset units. In that situation, don't reset the card. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add missing counter updateOded Gabbay
The global CS drop-on-reset counter wasn't updated together with the context counter. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add ull to PLL masksAlon Mizrahi
These defines are 64-bit defines so they need ull suffix. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add support for cs with timestampOfir Bitton
add support for user to request a timestamp upon cs completion. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: indicate to user that a cs is goneOfir Bitton
We want to indicate to the user that a certain command submission is finished long time ago and it is no longer in database. This means no further information regarding this cs can be obtained. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: print ECC type fieldOded Gabbay
We have the ECC type field from the firmware but the driver didn't print it, so we need to add that field to the ECC print message. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: update firmware filesOded Gabbay
Update various firmware header files with new defines. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: gaudi_ctx_fini() can be statickernel test robot
Make a function in gaudi.c to be static Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: goya_reset_sob_group() can be statickernel test robot
Make some functions static Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: kernel test robot <lkp@intel.com> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fetch pll frequency from firmwareAlon Mizrahi
Once firmware security is enabled, driver must fetch pll frequencies through the firmware message interface instead of reading the registers directly. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: mmu map wrapper for sizes larger than a pageOfir Bitton
We introduce a new wrapper which allows us to mmu map any size to any host va_range available. In addition we remove duplicated code from various places in driver and using this new wrapper instead. This wrapper supports mapping only contiguous physical memory blocks and will be used for mappings that are done to the driver ASID. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: print CS type when it is stuckOded Gabbay
We have several types of command submissions and the user wants to know which type of command submission has not finished in time when that event occurs. This is very helpful for debug. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: align to new FW reset schemeOfir Bitton
As part of the security effort in which FW will be handling sensitive HW registers, hard reset flow will be done by FW and will be triggered by driver. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: firmware returns 64bit argumentAlon Mizrahi
F/W message returns 64bit value but up until now we casted it to a 32bit variable, instead of receiving 64bit in the first place. Signed-off-by: Alon Mizrahi <amizrahi@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fix MMU debugfs operationsMoti Haimovski
After the MMU-code refactoring, the existing MMU debugfs operations are no longer working so we need to fix them. In addition, remove the duplicate code that was in the debugfs code and use the already existing MMU-code. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: share a single ctx-mutex between all MMUsMoti Haimovski
Multiple locks are usually a source of problems, which in the MMU case can be avoided since it is relatively rare that both MMU tables are updated at the same time. Therefore, use a single shared lock instead of two separate ones. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: support reserving aligned va blockOfir Bitton
Add support for reserving va block with alignment different than page size. This is a pre-requisite for allocations needed in future ASICs Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add boot errors printsGuy Nisan
Add log prints for security and eFuse boot error bits Signed-off-by: Guy Nisan <gnisan@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: print message with correct deviceOded Gabbay
During hard-reset, the driver rejects further IOCTL calls and prints an error message. That error message should be printed with the correct device instead of using only the control device. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: fetch HBM ecc info from FWOfir Bitton
Once FW security is enabled there is no access to HBM ecc registers, need to read values from FW using a dedicated interface. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fetch hard reset capability from FWOfir Bitton
Driver must fetch FW hard reset capability during boot time, in order to skip the hard reset flow if necessary. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: move asic property to correct structureOded Gabbay
Whether an ASIC has MMU towards its DRAM is an ASIC property, so move it to the asic fixed properties structure. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: use host va range for internal poolsOfir Bitton
Instead of using a dedicated va range for each internal pool, we introduce a new way for reserving a va block from an existing va range. This is a more generic way of reserving va blocks for future use. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: improve hard reset procedureOfir Bitton
We want to handle the scenario in which the driver was not able to kill all user processes due to many memory mappings. We need to retry again after some period while releasing the cores. The devices will be unusable and "in-reset" status during that time. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Rename hw_queues_mirror to cs_mirrorTomer Tayar
Future command submission types might be submitted to HW not via the QMAN queues path. However, it would be still required to have the TDR mechanism for these CS, and thus the patch renames the TDR fields and replaces the hw_queues_ prefix with cs_. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: refactor mmu va_range db structureOfir Bitton
Use an array of va_ranges instead of keeping each va_range separately, we do this for better readability and in order to support access to a specific range in a much elegant manner. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: move HW dirty check to a proper locationOfir Bitton
Driver must verify if HW is dirty before trying to fetch preboot information. Hence, we move this validation to a prior stage of the boot sequence. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: restore vm_pgoff after mmapOded Gabbay
Due to using dma_mmap_coherent() to perform mmap of dma memory, we had to clear the vm_pgoff field before calling that function. However, that broke the userspace (profiler tool) as they relied on searching the /proc/self/maps for these values to correctly "disassemble" the topology recipe. To re-enable that functionality, the driver can simply restore the value of vm_pgoff before returning to userspace but after calling dma_mmap_coherent(). Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: add 'needs reset' state in driverOfir Bitton
The new state indicates that device should be reset in order to re-gain funcionality. This unique state can occur if reset_on_lockup is disabled and an actual lockup has occurred. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: fix hard reset print and commentOmer Shpigelman
One of the first steps of a hard reset flow is to close all open user contexts. This user process teradown might take some time due to long cleanup in our driver or some other reason even before our cleanup flow. Hence fix the relevant print and comment to be more accurate. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: remove pcie_en strap toggleIgor Grinberg
Since the very large grace period is over and this functionality prevents us to implement the new reset sequence and apply security settings, we need to remove the code toggling the PCIE_EN bit in the straps register. Remove it for good. Signed-off-by: Igor Grinberg <igrinberg@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: remove duplicate printOded Gabbay
We print twice the firmware status regarding security, once in common code and once in asic code. Remove the print in asic code and leave the common code print. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: Separate CS job completion from its deallocationTomer Tayar
Current CS jobs are no longer needed after their completion. However, jobs of future workload might be in use even after they are completed. To allow that, the patch adds a refcount to the job object, and decouples its completion handling from its deallocation. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs/gaudi: increase MAX CS to 16KOded Gabbay
We need to have the MAX CS be much larger than the size of the different queues. In GAUDI we have around 8 groups of queues, and each group has 1K queue size. To prevent head-of-the-line blocking, we need to make sure there is sufficient number of available CS allocations even if one or more of those queues are full. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2020-11-30habanalabs: reset device upon fw read failurefarah kassabri
failure in reading pre-boot verion is not handled correctly, upon failure we need to reset the device in order to be able to reinstall the driver. Signed-off-by: farah kassabri <fkassabri@habana.ai> Reviewed-by: Oded Gabbay <ogabbay@kernel.org> Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
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