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2022-09-18habanalabs/gaudi2: assigning PQFs for ARC f/w in PDMARajarama Manjukody Bhat
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>
2022-09-18habanalabs: fix calculation of DRAM base address in PCIe BARTomer Tayar
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>
2022-09-18habanalabs: if map page fails don't try to unmap itDafna Hirschfeld
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>
2022-09-18habanalabs: select FW_LOADER in KconfigOded Gabbay
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>
2022-09-18habanalabs: add cdev index data memberOmer Shpigelman
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>
2022-09-18habanalabs: fix missing info in sysfs documentationOded Gabbay
The kernel version field wasn't updated when a few entries were upstreamed. Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
2022-09-18habanalabs: fix bug when setting va block sizeDafna Hirschfeld
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>
2022-09-18habanalabs: expose device security status using info ioctlOfir Bitton
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>
2022-09-18habanalabs: expose device security status through sysfsOfir Bitton
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>
2022-09-18habanalabs: remove secured PCI IDsOfir Bitton
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>
2022-09-18habanalabs: fix H/W block handling for partial unmappingsTomer Tayar
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>
2022-09-18habanalabs: unify hwmon resources clean upDani Liberman
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>
2022-09-18habanalabs/gaudi2: new API to control engine cores running modeTal Cohen
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>
2022-09-18habanalabs: remove left-over code from bring-upOded Gabbay
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>
2022-09-18habanalabs/gaudi2: change device f/w security checkfarah kassabri
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>
2022-09-18habanalabs: move common function out of debugfs.cOded Gabbay
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>
2022-09-18habanalabs/uapi: move defines to better place inside fileOded Gabbay
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>
2022-09-18habanalabs: add a missing lock for in_reset indicationTomer Tayar
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>
2022-09-18habanalabs: fix vma fields assignments order in hl_hw_block_mmap()Tomer Tayar
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>
2022-09-18habanalabs: avoid returning a valid handle if map_block() failsTomer Tayar
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>
2022-09-18habanalabs: fix command submission sanity checkTal Cohen
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>
2022-09-18habanalabs/gaudi: read div_sel value from firmwareOhad Sharabi
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>
2022-09-18habanalabs/gaudi: fix print format for div_selOhad Sharabi
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>
2022-09-18habanalabs/gaudi2: mark PCIE access error as fatalTomer Tayar
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>
2022-09-18habanalabs: add uapi to retrieve engines statusDani Liberman
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>
2022-09-18habanalabs: remove all kdma locksOded Gabbay
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>
2022-09-18habanalabs: wrap macro arg with parenthesesOhad Sharabi
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>
2022-09-18habanalabs: fix spelling mistakesBharat Jauhari
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>
2022-09-18habanalabs/gaudi2: remove old interrupt mappingsOfir Bitton
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>
2022-09-18habanalabs/gaudi: increase default cs timeout to 10 minutesOded Gabbay
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>
2022-09-18habanalabs: add return code field to module iteratorOhad Sharabi
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>
2022-09-18habanalabs/gaudi2: enable all MMU SPI/SEI interruptsTomer Tayar
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>
2022-09-18habanalabs: rename non_hard_reset to compute_resetOfir Bitton
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>
2022-09-18habanalabs: Fix spelling mistake "Scrubing" -> "Scrubbing"Colin Ian King
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>
2022-09-18habanalabs: Simplify bool conversionYang Li
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>
2022-09-18habanalabs: removed seq_file parameter from is_idle asic functionsDani Liberman
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>
2022-09-16bus: mhi: host: always print detected modem nameKoen Vandeputte
This harmless print provides a very easy way of knowing if the modem is detected properly during probing. Promote it to an informational print so no hassle is required enabling kernel debugging info to obtain it. The rationale here is that: On a lot of low-storage embedded devices, extensive kernel debugging info is not always present as this would increase it's size to much causing partition size issues. Signed-off-by: Koen Vandeputte <koen.vandeputte@citymesh.com> Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org> Reviewed-by: Loic Poulain <loic.poulain@linaro.org> Link: https://lore.kernel.org/r/20220831100349.1488762-1-koen.vandeputte@citymesh.com [mani: added missing review tags] Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
2022-09-12hwtracing: hisi_ptt: Fix up for "iommu/dma: Make header private"Stephen Rothwell
drivers/hwtracing/ptt/hisi_ptt.c:13:10: fatal error: linux/dma-iommu.h: No such file or directory 13 | #include <linux/dma-iommu.h> | ^~~~~~~~~~~~~~~~~~~ Caused by: commit ff0de066b463 ("hwtracing: hisi_ptt: Add trace function support for HiSilicon PCIe Tune and Trace device") interacting with: commit f2042ed21da7 ("iommu/dma: Make header private") from the iommu tree. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Robin Murphy <robin.murphy@arm.com> Acked-by: Yicong Yang <yangyicong@hisilicon.com> [Fixed subject line and added changelog text] Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
2022-09-11fpga: m10bmc-sec: d5005 bmc secure update driverRuss Weight
Add a driver name for the D5005 BMC secure update driver. Different driver names are used for the N3000 and D5005 devices because future changes will add conditional code based on the device type (N3000 vs D5005). This change enables D5005 secure updates of BCM images, BMC firmware, static-region images, etc. Signed-off-by: Russ Weight <russell.h.weight@intel.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20220902165706.518074-3-russell.h.weight@intel.com Signed-off-by: Xu Yilun <yilun.xu@intel.com>
2022-09-09comedi: convert sysfs snprintf to sysfs_emitXuezhi Zhang
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>
2022-09-09misc: pci_endpoint_test: Fix pci_endpoint_test_{copy,write,read}() panicShunsuke Mie
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>
2022-09-09misc: pci_endpoint_test: Aggregate params checking for xferShunsuke Mie
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>
2022-09-09misc/xilinx_sdfec: Replace kmap() with kmap_local_page()Fabio M. De Francesco
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>
2022-09-09misc/xilinx_sdfec: Call kunmap() on pages mapped with kmap()Fabio M. De Francesco
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>
2022-09-09misc/vmw_vmci: Use kmap_local_page() in vmci_queue_pair.cFabio M. De Francesco
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>
2022-09-09virt: vbox: Remove unproper informationJiasheng Jiang
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>
2022-09-09virt: vbox: convert to use dev_groupsJiasheng Jiang
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>
2022-09-09misc: microchip: pci1xxxx: use module_auxiliary_driverWei Yongjun
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>
2022-09-09misc: microchip: pci1xxxx: Add missing MODULE_DEVICE_TABLEWei Yongjun
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>
2022-09-09misc: microchip: pci1xxxx: Make symbol 'pci1xxxx_gpio_auxiliary_id_table' staticWei Yongjun
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>