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2020-10-15Merge tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds
Pull dma-mapping updates from Christoph Hellwig: - rework the non-coherent DMA allocator - move private definitions out of <linux/dma-mapping.h> - lower CMA_ALIGNMENT (Paul Cercueil) - remove the omap1 dma address translation in favor of the common code - make dma-direct aware of multiple dma offset ranges (Jim Quinlan) - support per-node DMA CMA areas (Barry Song) - increase the default seg boundary limit (Nicolin Chen) - misc fixes (Robin Murphy, Thomas Tai, Xu Wang) - various cleanups * tag 'dma-mapping-5.10' of git://git.infradead.org/users/hch/dma-mapping: (63 commits) ARM/ixp4xx: add a missing include of dma-map-ops.h dma-direct: simplify the DMA_ATTR_NO_KERNEL_MAPPING handling dma-direct: factor out a dma_direct_alloc_from_pool helper dma-direct check for highmem pages in dma_direct_alloc_pages dma-mapping: merge <linux/dma-noncoherent.h> into <linux/dma-map-ops.h> dma-mapping: move large parts of <linux/dma-direct.h> to kernel/dma dma-mapping: move dma-debug.h to kernel/dma/ dma-mapping: remove <asm/dma-contiguous.h> dma-mapping: merge <linux/dma-contiguous.h> into <linux/dma-map-ops.h> dma-contiguous: remove dma_contiguous_set_default dma-contiguous: remove dev_set_cma_area dma-contiguous: remove dma_declare_contiguous dma-mapping: split <linux/dma-mapping.h> cma: decrease CMA_ALIGNMENT lower limit to 2 firewire-ohci: use dma_alloc_pages dma-iommu: implement ->alloc_noncoherent dma-mapping: add new {alloc,free}_noncoherent dma_map_ops methods dma-mapping: add a new dma_alloc_pages API dma-mapping: remove dma_cache_sync 53c700: convert to dma_alloc_noncoherent ...
2020-10-15Merge tag 'char-misc-5.10-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big set of char, misc, and other assorted driver subsystem patches for 5.10-rc1. There's a lot of different things in here, all over the drivers/ directory. Some summaries: - soundwire driver updates - habanalabs driver updates - extcon driver updates - nitro_enclaves new driver - fsl-mc driver and core updates - mhi core and bus updates - nvmem driver updates - eeprom driver updates - binder driver updates and fixes - vbox minor bugfixes - fsi driver updates - w1 driver updates - coresight driver updates - interconnect driver updates - misc driver updates - other minor driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (396 commits) binder: fix UAF when releasing todo list docs: w1: w1_therm: Fix broken xref, mistakes, clarify text misc: Kconfig: fix a HISI_HIKEY_USB dependency LSM: Fix type of id parameter in kernel_post_load_data prototype misc: Kconfig: add a new dependency for HISI_HIKEY_USB firmware_loader: fix a kernel-doc markup w1: w1_therm: make w1_poll_completion static binder: simplify the return expression of binder_mmap test_firmware: Test partial read support firmware: Add request_partial_firmware_into_buf() firmware: Store opt_flags in fw_priv fs/kernel_file_read: Add "offset" arg for partial reads IMA: Add support for file reads without contents LSM: Add "contents" flag to kernel_read_file hook module: Call security_kernel_post_load_data() firmware_loader: Use security_post_load_data() LSM: Introduce kernel_post_load_data() hook fs/kernel_read_file: Add file_size output argument fs/kernel_read_file: Switch buffer size arg to size_t fs/kernel_read_file: Remove redundant size argument ...
2020-10-14Merge tag 'kernel-clone-v5.9' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux Pull kernel_clone() updates from Christian Brauner: "During the v5.9 merge window we reworked the process creation codepaths across multiple architectures. After this work we were only left with the _do_fork() helper based on the struct kernel_clone_args calling convention. As was pointed out _do_fork() isn't valid kernelese especially for a helper that isn't just static. This series removes the _do_fork() helper and introduces the new kernel_clone() helper. The process creation cleanup didn't change the name to something more reasonable mainly because _do_fork() was used in quite a few places. So sending this as a separate series seemed the better strategy. I originally intended to send this early in the v5.9 development cycle after the merge window had closed but given that this was touching quite a few places I decided to defer this until the v5.10 merge window" * tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: sched: remove _do_fork() tracing: switch to kernel_clone() kgdbts: switch to kernel_clone() kprobes: switch to kernel_clone() x86: switch to kernel_clone() sparc: switch to kernel_clone() nios2: switch to kernel_clone() m68k: switch to kernel_clone() ia64: switch to kernel_clone() h8300: switch to kernel_clone() fork: introduce kernel_clone()
2020-10-12Merge tag 'x86_pasid_for_5.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 PASID updates from Borislav Petkov: "Initial support for sharing virtual addresses between the CPU and devices which doesn't need pinning of pages for DMA anymore. Add support for the command submission to devices using new x86 instructions like ENQCMD{,S} and MOVDIR64B. In addition, add support for process address space identifiers (PASIDs) which are referenced by those command submission instructions along with the handling of the PASID state on context switch as another extended state. Work by Fenghua Yu, Ashok Raj, Yu-cheng Yu and Dave Jiang" * tag 'x86_pasid_for_5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/asm: Add an enqcmds() wrapper for the ENQCMDS instruction x86/asm: Carve out a generic movdir64b() helper for general usage x86/mmu: Allocate/free a PASID x86/cpufeatures: Mark ENQCMD as disabled when configured out mm: Add a pasid member to struct mm_struct x86/msr-index: Define an IA32_PASID MSR x86/fpu/xstate: Add supervisor PASID state for ENQCMD x86/cpufeatures: Enumerate ENQCMD and ENQCMDS instructions Documentation/x86: Add documentation for SVA (Shared Virtual Addressing) iommu/vt-d: Change flags type to unsigned int in binding mm drm, iommu: Change type of pasid to u32
2020-10-08misc: Kconfig: fix a HISI_HIKEY_USB dependencyMauro Carvalho Chehab
The dependency should be just USB_ROLE_SWITCH, instead of CONFIG_USB_ROLE_SWITCH. Fixes: 2827d98bc5d6 ("misc: Kconfig: add a new dependency for HISI_HIKEY_USB") Reported-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/0b6dff854c4bb412c2c11f17803e84d61385415f.1602138248.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-07misc: Kconfig: add a new dependency for HISI_HIKEY_USBMauro Carvalho Chehab
As warned by Randy: on x86_64: CONFIG_USB_ROLE_SWITCH=m and HISI_HIKEY_USB=y. ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_remove': hisi_hikey_usb.c:(.text+0x61): undefined reference to `usb_role_switch_unregister' ld: hisi_hikey_usb.c:(.text+0xa4): undefined reference to `usb_role_switch_put' ld: drivers/misc/hisi_hikey_usb.o: in function `hub_usb_role_switch_set': hisi_hikey_usb.c:(.text+0xd3): undefined reference to `usb_role_switch_get_drvdata' ld: drivers/misc/hisi_hikey_usb.o: in function `relay_set_role_switch': hisi_hikey_usb.c:(.text+0x54d): undefined reference to `usb_role_switch_set_role' ld: drivers/misc/hisi_hikey_usb.o: in function `hisi_hikey_usb_probe': hisi_hikey_usb.c:(.text+0x8a5): undefined reference to `usb_role_switch_get' ld: hisi_hikey_usb.c:(.text+0xa08): undefined reference to `usb_role_switch_register' ld: hisi_hikey_usb.c:(.text+0xa6e): undefined reference to `usb_role_switch_put' Make it dependent on CONFIG_USB_ROLE_SWITCH. Reported-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/0e49432d0db9ee8429a9923a1d995935b6b83552.1602047370.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-07x86/platform/uv: Update Copyrights to conform to HPE standardsMike Travis
Add Copyrights to those files that have been updated for UV5 changes. Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Link: https://lkml.kernel.org/r/20201005203929.148656-14-mike.travis@hpe.com
2020-10-07x86/platform/uv: Update UV MMRs for UV5Mike Travis
Update UV MMRs in uv_mmrs.h for UV5 based on Verilog output from the UV Hub hardware design files. This is the next UV architecture with a new class (UVY) being defined for 52 bit physical address masks. Uses a bitmask for UV arch identification so a single test can cover multiple versions. Includes other adjustments to match the uv_mmrs.h file to keep from encountering compile errors. New UV5 functionality is added in the patches that follow. [ Fix W=1 build warnings. ] Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-5-mike.travis@hpe.com
2020-10-07drivers/misc/sgi-xp: Adjust references in UV kernel modulesMike Travis
Remove the define is_uv() is_uv_system and just use the latter as is. This removes a conflict with a new symbol in the generated uv_mmrs.h file (is_uv()). Signed-off-by: Mike Travis <mike.travis@hpe.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Dimitri Sivanich <dimitri.sivanich@hpe.com> Reviewed-by: Steve Wahl <steve.wahl@hpe.com> Link: https://lkml.kernel.org/r/20201005203929.148656-4-mike.travis@hpe.com
2020-10-06dma-mapping: split <linux/dma-mapping.h>Christoph Hellwig
Split out all the bits that are purely for dma_map_ops implementations and related code into a new <linux/dma-map-ops.h> header so that they don't get pulled into all the drivers. That also means the architecture specific <asm/dma-mapping.h> is not pulled in by <linux/dma-mapping.h> any more, which leads to a missing includes that were pulled in by the x86 or arm versions in a few not overly portable drivers. Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-10-02mic: vop: copy data to kernel space then write to io memorySherry Sun
Read and write io memory should address align on ARCH ARM. Change to use memcpy_toio to avoid kernel panic caused by the address un-align issue. Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-5-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: add round_up(x,4) for vring_size to avoid kernel panicSherry Sun
Since struct _mic_vring_info and vring are allocated together and follow vring, if the vring_size() is not four bytes aligned, which will cause the start address of struct _mic_vring_info is not four byte aligned. For example, when vring entries is 128, the vring_size() will be 5126 bytes. The _mic_vring_info struct layout in ddr looks like: 0x90002400: 00000000 00390000 EE010000 0000C0FF Here 0x39 is the avail_idx member, and 0xC0FFEE01 is the magic member. When EP use ioread32(magic) to reads the magic in RC's share memory, it will cause kernel panic on ARM64 platform due to the cross-byte io read. Here read magic in user space use le32toh(vr0->info->magic) will meet the same issue. So add round_up(x,4) for vring_size, then the struct _mic_vring_info will store in this way: 0x90002400: 00000000 00000000 00000039 C0FFEE01 Which will avoid kernel panic when read magic in struct _mic_vring_info. Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-4-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: build VOP based on CONFIG_VOPSherry Sun
Build module or builtin VOP based on CONFIG_VOP macro. Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Link: https://lore.kernel.org/r/20200929091106.24624-3-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02misc: vop: set VIRTIO_F_ACCESS_PLATFORM for vop driverSherry Sun
Set VIRTIO_F_ACCESS_PLATFORM feature for vop driver, as the DMA mapping details shouldn't decide on the virtio implementation, but the host PCIe implementation. Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com> Link: https://lore.kernel.org/r/20200929084944.24146-1-sherry.sun@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02eeprom: ee1004: use module_i2c_driver to simplify the codeLiu Shixin
Use the module_i2c_driver() macro to make the code smaller and a bit simpler. Signed-off-by: Liu Shixin <liushixin2@huawei.com> Link: https://lore.kernel.org/r/20200918030225.3902750-1-liushixin2@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02ocxl: simplify the return expression of free_function_dev()Qinglang Miao
Simplify the return expression. Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Acked-by: Andrew Donnellan <ajd@linux.ibm.com> Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Link: https://lore.kernel.org/r/20200921131047.92526-1-miaoqinglang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-10-02ocxl: fix kconfig dependency warning for OCXLNecip Fazil Yildiran
When OCXL is enabled and HOTPLUG_PCI is disabled, it results in the following Kbuild warning: WARNING: unmet direct dependencies detected for HOTPLUG_PCI_POWERNV Depends on [n]: PCI [=y] && HOTPLUG_PCI [=n] && PPC_POWERNV [=y] && EEH [=y] Selected by [y]: - OCXL [=y] && PPC_POWERNV [=y] && PCI [=y] && EEH [=y] The reason is that OCXL selects HOTPLUG_PCI_POWERNV without depending on or selecting HOTPLUG_PCI while HOTPLUG_PCI_POWERNV is subordinate to HOTPLUG_PCI. HOTPLUG_PCI_POWERNV is a visible symbol with a set of dependencies. Selecting it will lead to overlooking its other dependencies as well. Let OCXL depend on HOTPLUG_PCI_POWERNV instead to avoid Kbuild issues. Fixes: 49ce94b8677c ("ocxl: Add PCI hotplug dependency to Kconfig") Acked-by: Frederic Barrat <fbarrat@linux.ibm.com> Signed-off-by: Necip Fazil Yildiran <fazilyildiran@gmail.com> Link: https://lore.kernel.org/r/20200918094148.20525-1-fazilyildiran@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-30misc: mic: drop double zeroingJulia Lawall
sg_init_table zeroes its first argument, so the allocation of that argument doesn't have to. the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression x,n,flags; @@ x = - kcalloc + kmalloc_array (n,sizeof(struct scatterlist),flags) ... sg_init_table(x,n) // </smpl> Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> Link: https://lore.kernel.org/r/1600601186-7420-14-git-send-email-Julia.Lawall@inria.fr Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-30habanalabs/gaudi: use correct define for qman initOded Gabbay
There was a copy-paste error, and the wrong define was used for initializing the QMAN. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Link: https://lore.kernel.org/r/20200925171415.25663-1-oded.gabbay@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-29dma-buf: Use struct dma_buf_map in dma_buf_vmap() interfacesThomas Zimmermann
This patch updates dma_buf_vmap() and dma-buf's vmap callback to use struct dma_buf_map. The interfaces used to return a buffer address. This address now gets stored in an instance of the structure that is given as an additional argument. The functions return an errno code on errors. Users of the functions are updated accordingly. This is only an interface change. It is currently expected that dma-buf memory can be accessed with system memory load/store operations. v3: * update fastrpc driver (kernel test robot) v2: * always clear map parameter in dma_buf_vmap() (Daniel) * include dma-buf-heaps and i915 selftests (kernel test robot) Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Acked-by: Sumit Semwal <sumit.semwal@linaro.org> Acked-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Tomasz Figa <tfiga@chromium.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20200925115601.23955-3-tzimmermann@suse.de
2020-09-27Merge tag 'at24-updates-for-v5.10' of ↵Wolfram Sang
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.10 at24 updates for v5.10 - add support for masking sensitive data in VAIO EEPROMs - set the nvmem TYPE to NVMEM_TYPE_EEPROM - add support for the new 'label' property - set the nvmem ID to NVMEM_DEVID_AUTO by default (for backward compatibility) or to NVMEM_DEVID_NONE if label is defined
2020-09-25eeprom: at24: Support custom device names for AT24 EEPROMsJon Hunter
By using the label property, a more descriptive name can be populated for AT24 EEPROMs NVMEM device. Update the AT24 driver to check to see if the label property is present and if so, use this as the name for NVMEM device. Please note that when the 'label' property is present for the AT24 EEPROM, we do not want the NVMEM driver to append the 'devid' to the name and so the nvmem_config.id is initialised to NVMEM_DEVID_NONE. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-09-25habanalabs/gaudi: configure QMAN LDMA registers properlyOfir Bitton
LDMA registers are configured with a fixed value. We add new define set which gives the configuration a proper meaning. Signed-off-by: Ofir Bitton <obitton@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25habanalabs: add notice of device not idleOded Gabbay
The device should be idle after a context is closed. If not, print a notice. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25habanalabs: add debug messages for opening/closing contextOded Gabbay
During debugging of error we sometimes need to know whether the error happened when a user context was open. Add debug prints when opening and closing user contexts. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25habanalabs: release kernel context after hw_finiOded Gabbay
Some engines use resources that belong to the kernel context (e.g. MMU mappings). In case the halt-engines doesn't work properly due to H/W restriction, we need to make sure the kernel context lives on until after the hw_fini. The hw_fini resets the ASIC after that no engine is alive and we can safely close the kernel context. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25habanalabs: correct an error messageOded Gabbay
We don't try to allocate huge pages here so remove the huge word. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-25Merge branch 'master' of ↵Christoph Hellwig
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into dma-mapping-for-next Pull in the latest 5.9 tree for the commit to revert the V4L2_FLAG_MEMORY_NON_CONSISTENT uapi addition.
2020-09-24eeprom: at24: Initialise AT24 NVMEM ID fieldJon Hunter
The AT24 EEPROM driver does not initialise the 'id' field of the nvmem_config structure and because the entire structure is not initialised, it ends up with a random value. This causes the NVMEM driver to append the device 'devid' value to name of the NVMEM device. Ideally for I2C devices such as the AT24 that already have a unique name, we would not bother to append the 'devid'. However, given that this has always been done for AT24 devices, we cannot remove the 'devid' as this will change the name of the userspace sysfs node for the NVMEM device. Nonetheless we should ensure that the 'id' field of the nvmem_config structure is initialised so that there is no chance of a random value causes problems in the future. Therefore, set the NVMEM config.id to NVMEM_DEVID_AUTO for AT24 EEPROMs so that the 'devid' is always appended. Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-09-24misc: pci_endpoint_test: Add driver data for Layerscape PCIe controllersHou Zhiqiang
The commit 0a121f9bc3f5 ("misc: pci_endpoint_test: Use streaming DMA APIs for buffer allocation") changed to use streaming DMA APIs, however, dma_map_single() might not return a 4KB aligned address, so add the default_data as driver data for Layerscape PCIe controllers to make it 4KB aligned. Link: https://lore.kernel.org/r/20200918080024.13639-13-Zhiqiang.Hou@nxp.com Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Rob Herring <robh@kernel.org>
2020-09-24misc: pci_endpoint_test: Add LS1088a in pci_device_id tableXiaowei Bao
Add LS1088a in pci_device_id table so that pci-epf-test can be used for testing PCIe EP in LS1088a. Link: https://lore.kernel.org/r/20200918080024.13639-12-Zhiqiang.Hou@nxp.com Signed-off-by: Xiaowei Bao <xiaowei.bao@nxp.com> Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Andrew Murray <andrew.murray@arm.com>
2020-09-22misc: hisi_hikey_usb: delete a stray tabDan Carpenter
This return statement is indented one tab too far. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20200918143405.GF909725@mwanda Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22misc: mic: scif: Fix error handling pathSouptick Joarder
Inside __scif_pin_pages(), when map_flags != SCIF_MAP_KERNEL it will call pin_user_pages_fast() to map nr_pages. However, pin_user_pages_fast() might fail with a return value -ERRNO. The return value is stored in pinned_pages->nr_pages. which in turn is passed to unpin_user_pages(), which expects pinned_pages->nr_pages >=0, else disaster. Fix this by assigning pinned_pages->nr_pages to 0 if pin_user_pages_fast() returns -ERRNO. Fixes: ba612aa8b487 ("misc: mic: SCIF memory registration and unregistration") Cc: John Hubbard <jhubbard@nvidia.com> Cc: Ira Weiny <ira.weiny@intel.com> Cc: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: John Hubbard <jhubbard@nvidia.com> Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Link: https://lore.kernel.org/r/1600570295-29546-1-git-send-email-jrdr.linux@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22misc: pvpanic: Use devm_platform_ioremap_resource()Wang ShaoBo
Make use of devm_platform_ioremap_resource() provided by driver core platform instead of duplicated analogue. Acked-by: Arnd Bergmann <arn@arndb.de> Signed-off-by: Wang ShaoBo <bobo.shaobowang@huawei.com> Link: https://lore.kernel.org/r/20200918083634.33124-1-bobo.shaobowang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-09-22habanalabs: update scratchpad register mapOded Gabbay
Our firmware use some scratchpad registers in the device for different roles. Update the file to the latest version of the firmware code. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: add indication of security-enabled F/WOded Gabbay
Future F/W versions will have enhanced security measures and the driver won't be able to do certain configurations that it always did and those configurations will be done by the firmware. We use the firmware's preboot version to determine whether security measures are enabled or not. Because we need this very early in our code, the read of the preboot version is moved to the earliest possible place, right after the device's PCI initialization. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs/gaudi: fix DMA completions max outstanding to 15Oded Gabbay
This is a workaround for H/W bug H3-2116, where if there are more than 16 outstanding completions in the DMA transpose engine, there can be a deadlock in the engine. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs/gaudi: remove axi drain supportOded Gabbay
AXI drain is broken in GAUDI so remove support for enabling it. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: update firmware interface fileOded Gabbay
Add new packet to fetch PLL information from firmware. This will be needed in the future when the driver won't be able to access the PLL registers directly Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: Add an option to map CB to device MMUTomer Tayar
There are cases in which the device should access the host memory of a CB through the device MMU, and thus this memory should be mapped. The patch adds a flag to the CB IOCTL, in which a user can ask the driver to perform the mapping when creating a CB. The mapping is allowed only if a dedicated VA range was allocated for the specific ASIC. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: Save context in a command buffer objectTomer Tayar
Future changes require using a context while handling a command buffer, and thus need to save the context in the command buffer object. Signed-off-by: Tomer Tayar <ttayar@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: no need for DMA_SHARED_BUFFEROded Gabbay
Now that the driver no longer uses dma_buf, we can remove the select of DMA_SHARED_BUFFER from kconfig. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: allow to wait on CS without sleepOded Gabbay
The user sometimes wants to check if a CS has completed to clean resources. In that case, the user doesn't want to sleep but just to check if the CS has finished and continue with his code. Add a new definition to the API of the wait on CS. The new definition says that if the timeout is 0, the driver won't sleep at all but return immediately after checking if the CS has finished. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs/gaudi: increase timeout for boot fit loadOded Gabbay
The firmware running in the boot stage takes more time to execute due to increased security mechanisms. Therefore, we need to increase the timeout we wait for the boot fit to finish loading. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: add debugfs support for MMU with 6 HOPsMoti Haimovski
This commit modify the existing debugfs code to support future devices that have a 6 HOPs MMU implementation instead of 5 HOPs implementation. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: add num_hops to hl_mmu_propertiesMoti Haimovski
This commit adds the number of HOPs supported by the device to the device MMU properties. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: refactor MMU as device-orientedMoti Haimovski
As preparation to MMU v2, rework MMU to be device oriented instantiated according to the device in hand. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: rename mmu.c to mmu_v1.cMoti Haimovski
In the future we will have MMU v2 code, so we need to prepare the driver for it. The first step is to rename the current MMU file to mmu_v1.c. Signed-off-by: Moti Haimovski <mhaimovski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: use smallest possible alignment for virtual addressesOmer Shpigelman
Change the acquiring of a device virtual address for mapping by using the smallest possible alignment, rather than the biggest, depending on the page size used by the user for allocating the memory. This will lower the virtual space memory consumption. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-09-22habanalabs: check flag before reset because of f/w eventOded Gabbay
For consistency with GAUDI code, add check of the relevant flag in the device structure before resetting the GOYA device in case of firmware event. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
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