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2020-09-14Merge 5.9-rc5 into char-misc-nextGreg Kroah-Hartman3-21/+24
We want the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-09-13Merge tag 'char-misc-5.9-rc5' of ↵Linus Torvalds2-17/+17
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char / misc driver fixes from Greg KH: "Here are a number of small driver fixes for 5.9-rc5 Included in here are: - habanalabs driver fixes - interconnect driver fixes - soundwire driver fixes - dyndbg fixes for reported issues, and then reverts to fix it all up to a sane state. - phy driver fixes All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.9-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: Revert "dyndbg: accept query terms like file=bar and module=foo" Revert "dyndbg: fix problem parsing format="foo bar"" scripts/tags.sh: exclude tools directory from tags generation video: fbdev: fix OOB read in vga_8planes_imageblit() dyndbg: fix problem parsing format="foo bar" dyndbg: refine export, rename to dynamic_debug_exec_queries() dyndbg: give %3u width in pr-format, cosmetic only interconnect: qcom: Fix small BW votes being truncated to zero soundwire: fix double free of dangling pointer interconnect: Show bandwidth for disabled paths as zero in debugfs habanalabs: fix report of RAZWI initiator coordinates habanalabs: prevent user buff overflow phy: omap-usb2-phy: disable PHY charger detect phy: qcom-qmp: Use correct values for ipq8074 PCIe Gen2 PHY init soundwire: bus: fix typo in comment on INTSTAT registers phy: qualcomm: fix return value check in qcom_ipq806x_usb_phy_probe() phy: qualcomm: fix platform_no_drv_owner.cocci warnings
2020-09-11dma-mapping: fix DMA_OPS dependenciesChristoph Hellwig1-0/+1
Driver that select DMA_OPS need to depend on HAS_DMA support to work. The vop driver was missing that dependency, so add it, and also add a another depends in DMA_OPS itself. That won't fix the issue due to how the Kconfig dependencies work, but at least produce a warning about unmet dependencies. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Robin Murphy <[email protected]>
2020-09-10misc: hisi_hikey_usb: add support for Hikey 970Mauro Carvalho Chehab2-19/+88
The HiKey 970 board is similar to Hikey 960 with regards to its USB configutation: it also relies on a USB HUB that is used when DWC3 is at host mode. However, it requires a few extra DT settings, as it uses a voltage regulator and GPIO reset pin. Add support for them. Signed-off-by: Mauro Carvalho Chehab <[email protected]> Link: https://lore.kernel.org/r/62843df9927b4d8dac5dc7c4a189567fa52ab2bb.1599717402.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-09-10misc: hisi_hikey_usb: Driver to support onboard USB gpio hub on Hikey960Yu Chen3-0/+215
The HiKey960 has a fairly complex USB configuration due to it needing to support a USB-C port for host/device mode and multiple USB-A ports in host mode, all using a single USB controller. See schematics here: https://github.com/96boards/documentation/raw/master/consumer/hikey/hikey960/hardware-docs/HiKey960_Schematics.pdf This driver acts as a usb-role-switch intermediary, intercepting the role switch notifications from the tcpm code, and passing them on to the dwc3 core. In doing so, it also controls the onboard hub and power gpios in order to properly route the data lines between the USB-C port and the onboard hub to the USB-A ports. Signed-off-by: Yu Chen <[email protected]> [jstultz: Major rework to make the driver a usb-role-switch intermediary] Signed-off-by: John Stultz <[email protected]> Signed-off-by: Mauro Carvalho Chehab <[email protected]> Link: https://lore.kernel.org/r/c263f72e1d803c18c45a69ce2c333e79a7ed89ff.1599717402.git.mchehab+huawei@kernel.org Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-09-09Merge tag 'at24-fixes-for-v5.9-rc5' of ↵Wolfram Sang1-4/+7
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-current at24 fixes for v5.9-rc5 - delay registration of the nvmem provider until after power is enabled
2020-09-08lkdtm: remove set_fs-based testsChristoph Hellwig4-29/+0
Once we can't manipulate the address limit, we also can't test what happens when the manipulation is abused. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Al Viro <[email protected]>
2020-09-07uacce: Use kobj_to_dev() instead of container_of()Tian Tao1-1/+1
Use kobj_to_dev() instead of container_of() Signed-off-by: Tian Tao <[email protected]> Reviewed-by: Zhou Wang <[email protected]> Acked-by: Zhangfei Gao <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-09-07misc: pci_endpoint_test: Add Device ID for RZ/G2H PCIe controllerLad Prabhakar1-0/+2
Add Renesas R8A774E1 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on RZ/G2H. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lad Prabhakar <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Biju Das <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]>
2020-09-07misc: pci_endpoint_test: Add Device ID for RZ/G2M and RZ/G2N PCIe controllersLad Prabhakar1-2/+5
Add Renesas R8A774A1 and R8A774B1 in pci_device_id table so that pci-epf-test can be used for testing PCIe EP on RZ/G2M and RZ/G2N. Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Lad Prabhakar <[email protected]> Signed-off-by: Lorenzo Pieralisi <[email protected]> Reviewed-by: Biju Das <[email protected]> Reviewed-by: Geert Uytterhoeven <[email protected]>
2020-09-01misc: eeprom: at24: register nvmem only after eeprom is ready to useVadym Kochan1-4/+7
During nvmem_register() the nvmem core sends notifications when: - cell added - nvmem added and during these notifications some callback func may access the nvmem device, which will fail in case of at24 eeprom because regulator and pm are enabled after nvmem_register(). Fixes: cd5676db0574 ("misc: eeprom: at24: support pm_runtime control") Fixes: b20eb4c1f026 ("eeprom: at24: drop unnecessary label") Cc: [email protected] Signed-off-by: Vadym Kochan <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2020-08-31habanalabs: fix report of RAZWI initiator coordinatesOfir Bitton1-16/+16
All initiator coordinates received upon an 'MMU page fault RAZWI event' should be the routers coordinates, the only exception is the DMA initiators for which the reported coordinates correspond to their actual location. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-31habanalabs: prevent user buff overflowMoti Haimovski1-1/+1
This commit fixes a potential debugfs issue that may occur when reading the clock gating mask into the user buffer since the user buffer size was not taken into consideration. Signed-off-by: Moti Haimovski <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-31Merge 5.9-rc3 into char-misc-nextGreg Kroah-Hartman23-78/+217
We need the fixes in here as well. Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-28misc: rtsx: do not setting OC_POWER_DOWN reg in rtsx_pci_init_ocp()Ricky Wu1-4/+0
this power saving action in rtsx_pci_init_ocp() cause INTEL-NUC6 platform missing card reader Signed-off-by: Ricky Wu <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-28VMCI: check return value of get_user_pages_fast() for errorsAlex Dewar1-4/+6
In a couple of places in qp_host_get_user_memory(), get_user_pages_fast() is called without properly checking for errors. If e.g. -EFAULT is returned, this negative value will then be passed on to qp_release_pages(), which expects a u64 as input. Fix this by only calling qp_release_pages() when we have a positive number returned. Fixes: 06164d2b72aa ("VMCI: queue pairs implementation.") Signed-off-by: Alex Dewar <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-28misc: fastrpc: fix common struct sg_table related issuesMarek Szyprowski1-2/+2
The Documentation/DMA-API-HOWTO.txt states that the dma_map_sg() function returns the number of the created entries in the DMA address space. However the subsequent calls to the dma_sync_sg_for_{device,cpu}() and dma_unmap_sg must be called with the original number of the entries passed to the dma_map_sg(). struct sg_table is a common structure used for describing a non-contiguous memory buffer, used commonly in the DRM and graphics subsystems. It consists of a scatterlist with memory pages and DMA addresses (sgl entry), as well as the number of scatterlist entries: CPU pages (orig_nents entry) and DMA mapped pages (nents entry). It turned out that it was a common mistake to misuse nents and orig_nents entries, calling DMA-mapping functions with a wrong number of entries or ignoring the number of mapped entries returned by the dma_map_sg() function. To avoid such issues, lets use a common dma-mapping wrappers operating directly on the struct sg_table objects and use scatterlist page iterators where possible. This, almost always, hides references to the nents and orig_nents entries, making the code robust, easier to follow and copy/paste safe. Signed-off-by: Marek Szyprowski <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-28eeprom: at25: set minimum read/write access stride to 1Christian Eggers1-1/+1
SPI eeproms are addressed by byte. Signed-off-by: Christian Eggers <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-28eeprom: at25: allow page sizes greater than 16 bitChristian Eggers1-1/+1
Storage technologies like FRAM have no "write pages", the whole chip can be written within one SPI transfer. For these chips, the page size can be set equal to the device size. Currently available devices are already bigger than 64 kiB. Signed-off-by: Christian Eggers <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-26Merge tag 'char-misc-5.9-rc3' of ↵Linus Torvalds16-63/+202
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver fixes from Greg KH: "Here are some small char and misc and other driver subsystem fixes for 5.9-rc3. The majority of these are tiny habanalabs driver fixes, but also in here are: - speakup build fixes now that it is out of staging and got exposed to more build systems all of a sudden - mei driver fix All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.9-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: habanalabs: correctly report inbound pci region cfg error habanalabs: check correct vmalloc return code habanalabs: validate FW file size habanalabs: fix incorrect check on failed workqueue create habanalabs: set max power according to card type habanalabs: proper handling of alloc size in coresight habanalabs: set clock gating according to mask habanalabs: verify user input in cs_ioctl_signal_wait habanalabs: Fix a loop in gaudi_extract_ecc_info() habanalabs: Fix memory corruption in debugfs habanalabs: validate packet id during CB parse habanalabs: Validate user address before mapping habanalabs: unmap PCI bars upon iATU failure mei: hdcp: fix mei_hdcp_verify_mprime() input parameter speakup: only build serialio when ISA is enabled speakup: Fix wait_for_xmitr for ttyio case
2020-08-25eeprom: at24: Tidy at24_read()Jean Delvare1-10/+4
The elegant code in at24_read() has the drawback that we now need to make a copy of all parameters to pass them to the post-processing callback function if there is one. Rewrite the loop in such a way that the parameters are not modified, so saving them is no longer needed. Signed-off-by: Jean Delvare <[email protected]> Cc: Bartosz Golaszewski <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Bartosz Golaszewski <[email protected]>
2020-08-25cxl: Rework error message for incompatible slotsFrederic Barrat1-2/+2
Improve the error message shown if a capi adapter is plugged on a capi-incompatible slot directly under the PHB (no intermediate switch). Fixes: 5632874311db ("cxl: Add support for POWER9 DD2") Cc: [email protected] # 4.14+ Signed-off-by: Frederic Barrat <[email protected]> Reviewed-by: Andrew Donnellan <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-08-25ocxl: Don't return trigger page when allocating an interruptFrederic Barrat3-12/+9
Existing users of ocxl_link_irq_alloc() have been converted to obtain the trigger page of an interrupt through xive directly, we therefore have no need to return the trigger page when allocating an interrupt. It also allows ocxl to use the xive native interface to allocate interrupts, instead of its custom service. Signed-off-by: Frederic Barrat <[email protected]> Reviewed-by: Cédric Le Goater <[email protected]> Reviewed-by: Greg Kurz <[email protected]> Acked-by: Andrew Donnellan <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-08-25ocxl: Access interrupt trigger page from xive directlyFrederic Barrat1-2/+6
We can access the trigger page through standard APIs so let's use it and avoid saving it when allocating the interrupt. It will also allow to simplify allocation in a later patch. Signed-off-by: Frederic Barrat <[email protected]> Reviewed-by: Cédric Le Goater <[email protected]> Reviewed-by: Greg Kurz <[email protected]> Acked-by: Andrew Donnellan <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> Link: https://lore.kernel.org/r/[email protected]
2020-08-23treewide: Use fallthrough pseudo-keywordGustavo A. R. Silva7-15/+15
Replace the existing /* fall through */ comments and its variants with the new pseudo-keyword macro fallthrough[1]. Also, remove unnecessary fall-through markings when it is the case. [1] https://www.kernel.org/doc/html/v5.7/process/deprecated.html?highlight=fallthrough#implicit-switch-case-fall-through Signed-off-by: Gustavo A. R. Silva <[email protected]>
2020-08-22habanalabs: correctly report inbound pci region cfg errorOfir Bitton1-1/+1
During inbound iATU configuration we can get errors while configuring PCI registers, there is a certain scenario in which these errors are not reflected and driver is loaded with wrong configuration. Signed-off-by: Ofir Bitton <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: check correct vmalloc return codeOfir Bitton2-3/+8
vmalloc can return different return code than NULL and a valid pointer. We must validate it in order to dereference a non valid pointer. Signed-off-by: Ofir Bitton <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: validate FW file sizeOfir Bitton1-0/+9
We must validate FW size in order not to corrupt memory in case a malicious FW file will be present in system. Signed-off-by: Ofir Bitton <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: fix incorrect check on failed workqueue createColin Ian King1-1/+1
The null check on a failed workqueue create is currently null checking hdev->cq_wq rather than the pointer hdev->cq_wq[i] and so the test will never be true on a failed workqueue create. Fix this by checking hdev->cq_wq[i]. Addresses-Coverity: ("Dereference before null check") Fixes: 5574cb2194b1 ("habanalabs: Assign each CQ with its own work queue") Signed-off-by: Colin Ian King <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: set max power according to card typeOded Gabbay5-7/+26
In Gaudi, the default max power setting is different between PCI and PMC cards. Therefore, the driver need to set the default after knowing what is the card type. The current code has a bug where it limits the maximum power of the PMC card to 200W after a reset occurs. Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: proper handling of alloc size in coresightOfir Bitton3-3/+15
Allocation size can go up to 64bit but truncated to 32bit, we should make sure it is not truncated and validate no address overflow. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: set clock gating according to maskOfir Bitton1-23/+21
Once clock gating is set we enable clock gating according to mask, we should also disable clock gating according to relevant bits. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: verify user input in cs_ioctl_signal_waitOfir Bitton1-0/+8
User input must be validated before using it to access internal structures. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: Fix a loop in gaudi_extract_ecc_info()Dan Carpenter1-1/+1
The condition was reversed. It should have been less than instead of greater than. The result is that we never enter the loop. Fixes: fcc6a4e60678 ("habanalabs: Extract ECC information from FW") Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: Fix memory corruption in debugfsDan Carpenter1-4/+4
This has to be a long instead of a u32 because we write a long value. On 64 bit systems, this will cause memory corruption. Fixes: c216477363a3 ("habanalabs: add debugfs support") Signed-off-by: Dan Carpenter <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: validate packet id during CB parseOfir Bitton2-0/+66
During command buffer parsing, driver extracts packet id from user buffer. Driver must validate this packet id, since it is being used in order to extract information from internal structures. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: Validate user address before mappingOfir Bitton1-2/+14
User address must be validated before driver performs address map. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-22habanalabs: unmap PCI bars upon iATU failureOfir Bitton1-2/+4
In case the driver fails to configure the PCI controller iATU, it needs to unmap the PCI bars before exiting so if the driver is removed, the bars won't be left mapped. Signed-off-by: Ofir Bitton <[email protected]> Reviewed-by: Oded Gabbay <[email protected]> Signed-off-by: Oded Gabbay <[email protected]>
2020-08-20kgdbts: switch to kernel_clone()Christian Brauner1-24/+24
The old _do_fork() helper is removed in favor of the new kernel_clone() helper. The latter adheres to naming conventions for kernel internal syscall helpers. Signed-off-by: Christian Brauner <[email protected]> Tested-by: Daniel Thompson <[email protected]> Acked-by: Daniel Thompson <[email protected]> Cc: Douglas Anderson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Cc: Daniel Thompson <[email protected]> Cc: Jason Wessel <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected]
2020-08-18mei: virtio: virtualization frontend driverTomas Winkler3-0/+887
This frontend driver implements MEI hw interface based on virtio framework to let MEI driver work without changes under virtualization. It requires a backend service in the ACRN device-model on the service OS side to make it work. The backend service will emulate mei routing and assign vtags for each mei vritio device. The backend service is available in ACRN device-model at github. For more information, please refer to https://projectacrn.org The ACRN virtio sub device id for MEI is is 0x8602. Signed-off-by: Tomas Winkler <[email protected]> Signed-off-by: Alexander Usyskin <[email protected]> Signed-off-by: Wang Yu <[email protected]> Signed-off-by: Liu Shuo <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-18mei: add connect with vtag ioctlAlexander Usyskin1-16/+194
This IOCTL is used to associate the current file descriptor with a FW Client (given by UUID), and virtual tag (vtag). The IOCTL opens a communication channel between a host client and a FW client on a tagged channel. From this point on, every reader and write will communicate with the associated FW client on the tagged channel. Upon close() the communication is terminated. The IOCTL argument is a struct with a union that contains the input parameter and the output parameter for this IOCTL. The input parameter is UUID of the FW Client, a vtag [0,255] The output parameter is the properties of the FW client Clients that do not support tagged connection will respond 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]>
2020-08-18mei: bus: unconditionally enable clients with vtag supportAlexander Usyskin1-0/+12
The list of clients is only visible via mei client bus. Enabling vtag clients on the mei client bus allows user-space to enumerate clients with vtag support by traversing the mei bus on sysfs. This feature is required for ACRN device model service. 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]>
2020-08-18mei: bus: use zero vtag for bus clients.Alexander Usyskin1-1/+71
The zero vtag is required for the read flow to work also for devices on the mei client bus. 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]>
2020-08-18mei: handle tx queue flushing for vtag connectionsAlexander Usyskin1-10/+13
Since multiple file pointers (fp) can be associated with a single host client, upon close() only objects associated with the fp has to flushed from the tx queues. The control queues should be flushed only when all the connections are closed and the client is disconnected. 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]>
2020-08-18mei: add a vtag map for each clientAlexander Usyskin4-5/+251
Vtag map is a list of tuples of vtag and file pointer (struct mei_cl_vtag) associated with a particular me host client. 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]>
2020-08-18mei: add a spin lock to protect rd_completed queueAlexander Usyskin5-14/+54
In order to support vtags we need to access read completed queue out of driver big lock. Add a spin lock to protect rd_completed queue. 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]>
2020-08-18mei: bump hbm version to 2.2Alexander Usyskin1-1/+1
Bump HBM version to 2.2 to indicate vtag support. 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]>
2020-08-18mei: add support for mei extended header.Tomas Winkler5-86/+334
Add an extend header beyond existing 4 bytes of the mei message header. The extension is of variable length, starting with meta header that contains the number of headers and the overall size of the extended headers excluding meta header itself followed by TLV list of extended headers. Currently only supported extension is the vtag. From the HW perspective the extended headers is already part of the payload. Signed-off-by: Tomas Winkler <[email protected]> Signed-off-by: Alexander Usyskin <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2020-08-18mei: add vtag support bit in client propertiesAlexander Usyskin4-4/+41
Vtag support is on a client basis, meaning not every client supports it. The vtag capability is communicated via the client properties structure during client enumeration process. Export the propertiy via sysfs. 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]>
2020-08-18mei: restrict vtag support to hbm version 2.2Alexander Usyskin4-0/+27
The vtag allows partitioning the mei messages into virtual groups/channels. Vtags are supported for firmwares with HBM version 2.2 and newer and only when a firmware confirms the support via capability handshake. This change only define vtag restrictions in order to make the series bisectable. Everything will be enabled when driver HBM version is set to 2.2. 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]>
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