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2020-03-26Merge tag 'v5.6-rc7' into i2c/for-5.7Wolfram Sang6-10/+13
Linux 5.6-rc7
2020-03-24Merge tag 'at24-updates-for-v5.7' of ↵Wolfram Sang1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.7 at24 updates for v5.7 - add a new ACPI ID for 24c1024
2020-03-24habanalabs: fix pm manual->auto in GOYAOded Gabbay1-1/+1
When moving from manual to automatic power management mode in GOYA, the driver didn't correctly place the device in LOW power mode. As a result, if an application was run immediately after the move, it would have run with low frequencies. Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: show unsupported message for GAUDIOded Gabbay2-2/+13
If a GAUDI device is present in the system, display an error message that it is not supported by the current kernel. Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: add print upon clock changeOmer Shpigelman2-1/+52
Add print upon clock slow down due to power consumption or overheating. In addition, add print when back to optimal clock. 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>
2020-03-24habanalabs: update goya firmware register mapOded Gabbay2-30/+48
Use specific values in enum of register map to be able to deprecate old values. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: Add missing annotation for goya_hw_queues_unlock()Jules Irenge1-0/+1
Sparse reports a warning at goya_hw_queues_unlock() warning: context imbalance in goya_hw_queues_unlock() - unexpected unlock The root cause is a missing annotation at goya_hw_queues_unlock() Add the missing __releases(&goya->hw_queues_lock) annotation Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: Add missing annotation for goya_hw_queues_lock()Jules Irenge1-0/+1
Sparse reports a warning at goya_hw_queues_lock() warning: context imbalance in goya_hw_queues_lock() - wrong count at exit The root cause is a missing annotation at goya_hw_queues_lock() Add the missing __acquires(&goya->hw_queues_lock) annotation Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: Remove unused parse_cnt variableTomer Tayar1-2/+2
The "parse_cnt" variable is incremented while validating the CS chunks, but it is actually not being used. 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>
2020-03-24habanalabs: provide historical maximum of various sensorsChristine Gharzuzi2-3/+12
Add support for hwmon_in_highest, hwmon_temp_highest and hwmon_curr_highest attributes. These attributes retrieve the historical maximum voltage, temperature and current that were sampled, respectively. Signed-off-by: Christine Gharzuzi <cgharzuzi@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: modify the return values of hl_read/write routinesMoti Haimovski2-37/+43
The hl read and write routines implement the hwmon_ops read and write interface routines respectively. These routines are expected to return a completion status when called, which was not the case until this commit. This commit modifies these routines to return 0 upon success and a negative error value upon failure. 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>
2020-03-24habanalabs: support temperature offset via sysfsMoti Haimovski3-1/+51
This commit adds support for offsetting the temperatures reading by a specified value as defined in https://www.kernel.org/doc/Documentation/hwmon/sysfs-interface using the standard sysfs defined for hwmon. This is required by system administrators to inject errors to test their monitoring applications in data centers. 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>
2020-03-24habanalabs: ratelimit error prints of IRQsOded Gabbay1-6/+7
The compute engines can perform millions of transactions per second. If there is a bug in the S/W stack, we could get a lot of interrupts and spam the kernel log. Therefore, ratelimit these prints Reviewed-by: Omer Shpigelman <oshpigelman@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-24habanalabs: add debugfs write64/read64Moti Haimovski3-0/+165
Allow debug user to write/read 64-bit data through debugfs. This will expedite the dump process of the (large) internal memories of the device done during debug. 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>
2020-03-24habanalabs: fix DDR bar address settingOmer Shpigelman1-2/+1
DRAM_PHYS_BASE is already taken into account in MMU_PAGE_TABLES_ADDR. 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>
2020-03-24habanalabs: removing extra ;Oded Gabbay1-1/+1
There is an extra ; after the end of a function, which needs to be removed Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Reviewed-by: Tomer Tayar <ttayar@habana.ai>
2020-03-24habanalabs: Avoid running restore chunks if no execute chunksTomer Tayar1-20/+21
CS with no chunks for execute phase is invalid, so its context_switch/restore phase should not be run. Hence, move the check of the execute chunks number to the beginning of hl_cs_ioctl(). 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>
2020-03-24habanalabs: Modify CS jobs counter to u16Tomer Tayar1-1/+1
As HL_MAX_JOBS_PER_CS is 512, it is possible that more than 255 CS jobs will be submitted for a certain queue. Hence, modify the "jobs_in_queue_cnt" parameter of the "hl_cs" structure to be u16 instead of u8. 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>
2020-03-24habanalabs: split the host MMU propertiesOmer Shpigelman6-137/+225
Host memory may be allocated with huge pages. A different virtual range may be used for mapping in this case. Add Huge PCI MMU (HPMMU) properties to support it. This patch is a prerequisite for future ASICs support and has no effect on Goya ASIC as currently a single virtual host range is used for all page sizes. 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>
2020-03-24habanalabs: use the user CB size as a default job sizeOmer Shpigelman1-4/+2
When no patched command buffer (CB) is created, use the user CB size as the job size. 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>
2020-03-24habanalabs: flush only at the end of the map/unmapPawel Piskorski4-27/+50
Optimize hl_mmu_map and hl_mmu_unmap by not calling flush(ctx) within per-page loop. Signed-off-by: Pawel Piskorski <ppiskorski@habana.ai> Reviewed-by: Oded Gabbay <oded.gabbay@gmail.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-03-23Merge 5.6-rc7 into char-misc-nextGreg Kroah-Hartman5-4/+7
We need the char/misc driver fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18mei: fix CNL itouch device number to match the spec.Alexander Usyskin2-4/+4
The Cannon Lake device for itouch in HW spec is numbered 3, not 4. Fix the internal numbering to match the HW spec. Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200227112737.8383-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18misc: Replace zero-length array with flexible-array memberGustavo A. R. Silva4-4/+4
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Acked-by: Dimitri Sivanich <sivanich@hpe.com> Link: https://lore.kernel.org/r/20200226222240.GA14474@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18misc: mic: Use scnprintf() for avoiding potential buffer overflowTakashi Iwai1-2/+2
Since snprintf() returns the would-be-output size instead of the actual output size, the succeeding calls may go beyond the given buffer limit. Fix it by replacing with scnprintf(). Signed-off-by: Takashi Iwai <tiwai@suse.de> Link: https://lore.kernel.org/r/20200311074916.8783-1-tiwai@suse.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18mmc: rtsx_pci: Fix support for speed-modes that relies on tuningRicky Wu4-3/+5
The TX/RX register should not be treated the same way to allow for better support of tuning. Fix this by using a default initial value for TX. Signed-off-by: Ricky Wu <ricky_wu@realtek.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20200316025232.1167-1-ricky_wu@realtek.com [Ulf: Updated changelog] Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-18lkdtm: arm64: test kernel pointer authenticationAmit Daniel Kachhap3-0/+38
This test is specific for arm64. When in-kernel Pointer Authentication config is enabled, the return address stored in the stack is signed. This feature helps in ROP kind of attack. If any parameters used to generate the pac (<key, sp, lr>) is modified then this will fail in the authentication stage and will lead to abort. This test changes the input parameter APIA kernel keys to cause abort. The pac computed from the new key can be same as last due to hash collision so this is retried for few times as there is no reliable way to compare the pacs. Even though this test may fail even after retries but this may cause authentication failure at a later stage in earlier function returns. This test can be invoked as, echo CORRUPT_PAC > /sys/kernel/debug/provoke-crash/DIRECT or as below if inserted as a module, insmod lkdtm.ko cpoint_name=DIRECT cpoint_type=CORRUPT_PAC cpoint_count=1 [ 13.118166] lkdtm: Performing direct entry CORRUPT_PAC [ 13.118298] lkdtm: Clearing PAC from the return address [ 13.118466] Unable to handle kernel paging request at virtual address bfff8000108648ec [ 13.118626] Mem abort info: [ 13.118666] ESR = 0x86000004 [ 13.118866] EC = 0x21: IABT (current EL), IL = 32 bits [ 13.118966] SET = 0, FnV = 0 [ 13.119117] EA = 0, S1PTW = 0 Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2020-03-12misc: eeprom: at24: fix regulator underflowMichael Auchter1-1/+2
The at24 driver attempts to read a byte from the device to validate that it's actually present, and if not, disables the vcc regulator and returns -ENODEV. However, between the read and the error handling path, pm_runtime_idle() is called and invokes the driver's suspend callback, which also disables the vcc regulator. This leads to an underflow of the regulator enable count if the EEPROM is not present. Move the pm_runtime_suspend() call to be after the error handling path to resolve this. Fixes: cd5676db0574 ("misc: eeprom: at24: support pm_runtime control") Signed-off-by: Michael Auchter <michael.auchter@ni.com> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-03-09Merge 5.6-rc5 into char-misc-nextGreg Kroah-Hartman1-6/+6
We need the binder and other fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-03-06uacce: unmap remaining mmapping from user spaceZhangfei Gao1-0/+16
When uacce parent device module is removed, user app may still keep the mmaped area, which can be accessed unsafely. When rmmod, Parent device driver will call uacce_remove, which unmap all remaining mapping from user space for safety. VM_FAULT_SIGBUS is also reported to user space accordingly. Suggested-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-03-03altera-stapl: altera_get_note: prevent write beyond end of 'key'Daniel Axtens1-6/+6
altera_get_note is called from altera_init, where key is kzalloc(33). When the allocation functions are annotated to allow the compiler to see the sizes of objects, and with FORTIFY_SOURCE, we see: In file included from drivers/misc/altera-stapl/altera.c:14:0: In function ‘strlcpy’, inlined from ‘altera_init’ at drivers/misc/altera-stapl/altera.c:2189:5: include/linux/string.h:378:4: error: call to ‘__write_overflow’ declared with attribute error: detected write beyond size of object passed as 1st parameter __write_overflow(); ^~~~~~~~~~~~~~~~~~ That refers to this code in altera_get_note: if (key != NULL) strlcpy(key, &p[note_strings + get_unaligned_be32( &p[note_table + (8 * i)])], length); The error triggers because the length of 'key' is 33, but the copy uses length supplied as the 'length' parameter, which is always 256. Split the size parameter into key_len and val_len, and use the appropriate length depending on what is being copied. Detected by compiler error, only compile-tested. Cc: "Igor M. Liplianin" <liplianin@netup.ru> Signed-off-by: Daniel Axtens <dja@axtens.net> Link: https://lore.kernel.org/r/20200120074344.504-2-dja@axtens.net Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/202002251042.D898E67AC@keescook Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-24Merge 5.6-rc3 into char-misc-nextGreg Kroah-Hartman2-3/+46
We need the char/misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-23mei: remove unused includes from pci-{me,txe}.cTomas Winkler2-14/+2
During the development some of the module functions were factored out of pci-mei.c and pci-txe.c files, but the includes have remain there. We can remove them now. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200223204419.2634-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-22uacce: add uacce driverKenneth Lee5-0/+634
Uacce (Unified/User-space-access-intended Accelerator Framework) targets to provide Shared Virtual Addressing (SVA) between accelerators and processes. So accelerator can access any data structure of the main cpu. This differs from the data sharing between cpu and io device, which share only data content rather than address. Since unified address, hardware and user space of process can share the same virtual address in the communication. Uacce create a chrdev for every registration, the queue is allocated to the process when the chrdev is opened. Then the process can access the hardware resource by interact with the queue file. By mmap the queue file space to user space, the process can directly put requests to the hardware without syscall to the kernel space. The IOMMU core only tracks mm<->device bonds at the moment, because it only needs to handle IOTLB invalidation and PASID table entries. However uacce needs a finer granularity since multiple queues from the same device can be bound to an mm. When the mm exits, all bound queues must be stopped so that the IOMMU can safely clear the PASID table entry and reallocate the PASID. An intermediate struct uacce_mm links uacce devices and queues. Note that an mm may be bound to multiple devices but an uacce_mm structure only ever belongs to a single device, because we don't need anything more complex (if multiple devices are bound to one mm, then we'll create one uacce_mm for each bond). uacce_device --+-- uacce_mm --+-- uacce_queue | '-- uacce_queue | '-- uacce_mm --+-- uacce_queue +-- uacce_queue '-- uacce_queue Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Kenneth Lee <liguozhu@hisilicon.com> Signed-off-by: Zaibo Xu <xuzaibo@huawei.com> Signed-off-by: Zhou Wang <wangzhou1@hisilicon.com> Signed-off-by: Jean-Philippe Brucker <jean-philippe@linaro.org> Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-02-14misc: Use kzalloc() instead of kmalloc() with flag GFP_ZERO.Huang Zijiang1-1/+1
Use kzalloc instead of manually setting kmalloc with flag GFP_ZERO since kzalloc sets allocated memory to zero. Signed-off-by: Huang Zijiang <huang.zijiang@zte.com.cn> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn> Link: https://lore.kernel.org/r/1581501247-5479-1-git-send-email-wang.yi59@zte.com.cn Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12mei: limit number of bytes in mei header.Tomas Winkler2-2/+5
The MEI message header provides only 9 bits for storing the message size, limiting to 511. In theory the host buffer (hbuf) can contain up to 1020 bytes (limited by byte = 255 * 4) With the current hardware and hbuf size 512, this is not a real issue, but as hardening approach we enforce the limit. Signed-off-by: Tomas Winkler <tomas.winkler@intel.com> Link: https://lore.kernel.org/r/20200211160522.7562-1-tomas.winkler@intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12mei: bus: replace zero-length array with flexible-array memberGustavo A. R. Silva1-2/+2
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20200211210822.GA31368@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-12misc: vexpress: Replace zero-length array with flexible-array memberGustavo A. R. Silva1-1/+1
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertenly introduced[3] to the codebase from now on. This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: https://lore.kernel.org/r/20200211211010.GA32239@embeddedor Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-11habanalabs: patched cb equals user cb in device memsetOded Gabbay1-2/+0
During device memory memset, the driver allocates and use a CB (command buffer). To reuse existing code, it keeps a pointer to the CB in two variables, user_cb and patched_cb. Therefore, there is no need to "put" both the user_cb and patched_cb, as it will cause an underflow of the refcnt of the CB. Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-02-11habanalabs: do not halt CoreSight during hard resetOmer Shpigelman1-1/+3
During hard reset we must not write to the device. Hence avoid halting CoreSight during user context close if it is done during hard reset. In addition, we must not re-enable clock gating afterwards as it was deliberately disabled in the beginning of the hard reset flow. 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>
2020-02-11habanalabs: halt the engines before hard-resetOded Gabbay2-0/+43
The driver must halt the engines before doing hard-reset, otherwise the device can go into undefined state. There is a place where the driver didn't do that and this patch fixes it. Reviewed-by: Tomer Tayar <ttayar@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2020-02-11lkdtm/stackleak: Make the test more verboseAlexander Popov1-8/+17
Make the stack erasing test more verbose about the errors that it can detect. Signed-off-by: Alexander Popov <alex.popov@linux.com> Cc: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20200102234907.585508-1-alex.popov@linux.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-02-10eeprom: at24: add TPF0001 ACPI ID for 24c1024 deviceMarkus Pietrek1-0/+1
This ID is used at leas on some variants of MSC C6B-SLH board. Signed-off-by: Markus Pietrek <mpie@msc-ge.com> Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
2020-02-07Merge branch 'i2c/for-5.6' of ↵Linus Torvalds1-21/+51
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "i2c core: - huge improvements and refactorizations of the Linux I2C documentation (lots of thanks to Luca for doing it and Jean for the careful review) - subsystem wide API conversion to i2c_new_client_device() - remove obsolete parport-light driver - smaller core updates (removal of 'extern', enabling more compile testing, use more helper macros) - and quite a bunch of driver updates (new IDs, simplifications, better PM, support of atomic transfers and other improvements) i2c-mux: - The main feature is the idle-state rework of the pca954x driver from Biwen Li at24 driver: - minor maintenance: update the license tag, sort headers - move support for the write-protect pin into nvmem core - add a reference to the new wp-gpios property in nvmem to at25 bindings - add support for regulator and pm_runtime control" * 'i2c/for-5.6' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (91 commits) i2c: cros-ec-tunnel: Fix ACPI identifier i2c: cros-ec-tunnel: Fix slave device enumeration i2c: stm32f7: add PM_SLEEP suspend/resume support i2c: cadence: Fix wording in i2c-cadence driver i2c: cadence: Fix power management order of operations i2c: cadence: Fix error printing in case of defer i2c: cadence: Handle transfer_size rollover i2c: i801: Add support for Intel Comet Lake PCH-V docs: i2c: writing-clients: properly name the stop condition docs: i2c: i2c-protocol: use same wording as smbus-protocol docs: i2c: rename sections so the overall picture is clearer docs: i2c: old-module-parameters: use monospace instead of "" docs: i2c: old-module-parameters: clarify this is for obsolete kernels docs: i2c: old-module-parameters: fix internal hyperlink docs: i2c: instantiating-devices: use monospace for sysfs attributes docs: i2c: instantiating-devices: rearrange static instatiation docs: i2c: instantiating-devices: fix internal hyperlink docs: i2c: smbus-protocol: improve I2C Block transactions description docs: i2c: smbus-protocol: fix punctuation docs: i2c: smbus-protocol: fix typo ...
2020-02-04Merge tag 'powerpc-5.6-1' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "A pretty small batch for us, and apologies for it being a bit late, I wanted to sneak Christophe's user_access_begin() series in. Summary: - Implement user_access_begin() and friends for our platforms that support controlling kernel access to userspace. - Enable CONFIG_VMAP_STACK on 32-bit Book3S and 8xx. - Some tweaks to our pseries IOMMU code to allow SVMs ("secure" virtual machines) to use the IOMMU. - Add support for CLOCK_{REALTIME/MONOTONIC}_COARSE to the 32-bit VDSO, and some other improvements. - A series to use the PCI hotplug framework to control opencapi card's so that they can be reset and re-read after flashing a new FPGA image. As well as other minor fixes and improvements as usual. Thanks to: Alastair D'Silva, Alexandre Ghiti, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Anju T Sudhakar, Bai Yingjie, Chen Zhou, Christophe Leroy, Frederic Barrat, Greg Kurz, Jason A. Donenfeld, Joel Stanley, Jordan Niethe, Julia Lawall, Krzysztof Kozlowski, Laurent Dufour, Laurentiu Tudor, Linus Walleij, Michael Bringmann, Nathan Chancellor, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Peter Ujfalusi, Pingfan Liu, Ram Pai, Randy Dunlap, Russell Currey, Sam Bobroff, Sebastian Andrzej Siewior, Shawn Anastasio, Stephen Rothwell, Steve Best, Sukadev Bhattiprolu, Thiago Jung Bauermann, Tyrel Datwyler, Vaibhav Jain" * tag 'powerpc-5.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (131 commits) powerpc: configs: Cleanup old Kconfig options powerpc/configs/skiroot: Enable some more hardening options powerpc/configs/skiroot: Disable xmon default & enable reboot on panic powerpc/configs/skiroot: Enable security features powerpc/configs/skiroot: Update for symbol movement only powerpc/configs/skiroot: Drop default n CONFIG_CRYPTO_ECHAINIV powerpc/configs/skiroot: Drop HID_LOGITECH powerpc/configs: Drop NET_VENDOR_HP which moved to staging powerpc/configs: NET_CADENCE became NET_VENDOR_CADENCE powerpc/configs: Drop CONFIG_QLGE which moved to staging powerpc: Do not consider weak unresolved symbol relocations as bad powerpc/32s: Fix kasan_early_hash_table() for CONFIG_VMAP_STACK powerpc: indent to improve Kconfig readability powerpc: Provide initial documentation for PAPR hcalls powerpc: Implement user_access_save() and user_access_restore() powerpc: Implement user_access_begin and friends powerpc/32s: Prepare prevent_user_access() for user_access_end() powerpc/32s: Drop NULL addr verification powerpc/kuap: Fix set direction in allow/prevent_user_access() powerpc/32s: Fix bad_kuap_fault() ...
2020-02-04proc: convert everything to "struct proc_ops"Alexey Dobriyan1-21/+21
The most notable change is DEFINE_SHOW_ATTRIBUTE macro split in seq_file.h. Conversion rule is: llseek => proc_lseek unlocked_ioctl => proc_ioctl xxx => proc_xxx delete ".owner = THIS_MODULE" line [akpm@linux-foundation.org: fix drivers/isdn/capi/kcapi_proc.c] [sfr@canb.auug.org.au: fix kernel/sched/psi.c] Link: http://lkml.kernel.org/r/20200122180545.36222f50@canb.auug.org.au Link: http://lkml.kernel.org/r/20191225172546.GB13378@avx2 Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-02-01Merge branch 'topic/user-access-begin' into nextMichael Ellerman2-7/+8
Merge the user_access_begin() series from Christophe. This is based on a commit from Linus that went into v5.5-rc7.
2020-01-30Merge tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drmLinus Torvalds1-8/+0
Pull drm updates from Davbe Airlie: "This is the main pull request for graphics for 5.6. Usual selection of changes all over. I've got one outstanding vmwgfx pull that touches mm so kept it separate until after all of this lands. I'll try and get it to you soon after this, but it might be early next week (nothing wrong with code, just my schedule is messy) This also hits a lot of fbdev drivers with some cleanups. Other notables: - vulkan timeline semaphore support added to syncobjs - nouveau turing secureboot/graphics support - Displayport MST display stream compression support Detailed summary: uapi: - dma-buf heaps added (and fixed) - command line add support for panel oreientation - command line allow overriding penguin count drm: - mipi dsi definition updates - lockdep annotations for dma_resv - remove dma-buf kmap/kunmap support - constify fb_ops in all fbdev drivers - MST fix for daisy chained hotplug- - CTA-861-G modes with VIC >= 193 added - fix drm_panel_of_backlight export - LVDS decoder support - more device based logging support - scanline alighment for dumb buffers - MST DSC helpers scheduler: - documentation fixes - job distribution improvements panel: - Logic PD type 28 panel support - Jimax8729d MIPI-DSI - igenic JZ4770 - generic DSI devicetree bindings - sony acx424AKP panel - Leadtek LTK500HD1829 - xinpeng XPP055C272 - AUO B116XAK01 - GiantPlus GPM940B0 - BOE NV140FHM-N49 - Satoz SAT050AT40H12R2 - Sharp LS020B1DD01D panels. ttm: - use blocking WW lock i915: - hw/uapi state separation - Lock annotation improvements - selftest improvements - ICL/TGL DSI VDSC support - VBT parsing improvments - Display refactoring - DSI updates + fixes - HDCP 2.2 for CFL - CML PCI ID fixes - GLK+ fbc fix - PSR fixes - GEN/GT refactor improvments - DP MST fixes - switch context id alloc to xarray - workaround updates - LMEM debugfs support - tiled monitor fixes - ICL+ clock gating programming removed - DP MST disable sequence fixed - LMEM discontiguous object maps - prefaulting for discontiguous objects - use LMEM for dumb buffers if possible - add LMEM mmap support amdgpu: - enable sync object timelines for vulkan - MST atomic routines - enable MST DSC support - add DMCUB display microengine support - DC OEM i2c support - Renoir DC fixes - Initial HDCP 2.x support - BACO support for Arcturus - Use BACO for runtime PM power save - gfxoff on navi10 - gfx10 golden updates and fixes - DCN support on POWER - GFXOFF for raven1 refresh - MM engine idle handlers cleanup - 10bpc EDP panel fixes - renoir watermark fixes - SR-IOV fixes - Arcturus VCN fixes - GDDR6 training fixes - freesync fixes - Pollock support amdkfd: - unify more codepath with amdgpu - use KIQ to setup HIQ rather than MMIO radeon: - fix vma fault handler race - PPC DMA fix - register check fixes for r100/r200 nouveau: - mmap_sem vs dma_resv fix - rewrite the ACR secure boot code for Turing - TU10x graphics engine support (TU11x pending) - Page kind mapping for turing - 10-bit LUT support - GP10B Tegra fixes - HD audio regression fix hisilicon/hibmc: - use generic fbdev code and helpers rockchip: - dsi/px30 support virtio: - fb damage support - static some functions vc4: - use dma_resv lock wrappers msm: - use dma_resv lock wrappers - sc7180 display + DSI support - a618 support - UBWC support improvements vmwgfx: - updates + new logging uapi exynos: - enable/disable callback cleanups etnaviv: - use dma_resv lock wrappers atmel-hlcdc: - clock fixes mediatek: - cmdq support - non-smooth cursor fixes - ctm property support sun4i: - suspend support - A64 mipi dsi support rcar-du: - Color management module support - LVDS encoder dual-link support - R8A77980 support analogic: - add support for an6345 ast: - atomic modeset support - primary plane garbage fix arcgpu: - fixes for fourcc handling tegra: - minor fixes and improvments mcde: - vblank support meson: - OSD1 plane AFBC commit gma500: - add pageflip support - reomve global drm_dev komeda: - tweak debugfs output - d32 support - runtime PM suppotr udl: - use generic shmem helpers - cleanup and fixes" * tag 'drm-next-2020-01-30' of git://anongit.freedesktop.org/drm/drm: (1998 commits) drm/nouveau/fb/gp102-: allow module to load even when scrubber binary is missing drm/nouveau/acr: return error when registering LSF if ACR not supported drm/nouveau/disp/gv100-: not all channel types support reporting error codes drm/nouveau/disp/nv50-: prevent oops when no channel method map provided drm/nouveau: support synchronous pushbuf submission drm/nouveau: signal pending fences when channel has been killed drm/nouveau: reject attempts to submit to dead channels drm/nouveau: zero vma pointer even if we only unreference it rather than free drm/nouveau: Add HD-audio component notifier support drm/nouveau: fix build error without CONFIG_IOMMU_API drm/nouveau/kms/nv04: remove set but not used variable 'width' drm/nouveau/kms/nv50: remove set but not unused variable 'nv_connector' drm/nouveau/mmu: fix comptag memory leak drm/nouveau/gr/gp10b: Use gp100_grctx and gp100_gr_zbc drm/nouveau/pmu/gm20b,gp10b: Fix Falcon bootstrapping drm/exynos: Rename Exynos to lowercase drm/exynos: change callback names drm/mst: Don't do atomic checks over disabled managers drm/amdgpu: add the lost mutex_init back drm/amd/display: skip opp blank or unblank if test pattern enabled ...
2020-01-29Merge tag 'at24-updates-for-v5.6' of ↵Wolfram Sang1-21/+51
git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into i2c/for-5.6 at24 updates for linux v5.6 - minor maintenance: update the license tag, sort headers - move support for the write-protect pin into nvmem core - add a reference to the new wp-gpios property in nvmem to at25 bindings - add support for regulator and pm_runtime control
2020-01-29Merge tag 'char-misc-5.6-rc1' of ↵Linus Torvalds18-52/+105
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the big char/misc/whatever driver changes for 5.6-rc1 Included in here are loads of things from a variety of different driver subsystems: - soundwire updates - binder updates - nvmem updates - firmware drivers updates - extcon driver updates - various misc driver updates - fpga driver updates - interconnect subsystem and driver updates - bus driver updates - uio driver updates - mei driver updates - w1 driver cleanups - various other small driver updates All of these have been in linux-next for a while with no reported issues" * tag 'char-misc-5.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (86 commits) mei: me: add jasper point DID char: hpet: Use flexible-array member binder: fix log spam for existing debugfs file creation. mei: me: add comet point (lake) H device ids nvmem: add QTI SDAM driver dt-bindings: nvmem: add binding for QTI SPMI SDAM dt-bindings: imx-ocotp: Add i.MX8MP compatible dt-bindings: soundwire: fix example soundwire: cadence: fix kernel-doc parameter descriptions soundwire: intel: report slave_ids for each link to SOF driver siox: Use the correct style for SPDX License Identifier w1: omap-hdq: Simplify driver with PM runtime autosuspend firmware: stratix10-svc: Remove unneeded semicolon firmware: google: Probe for a GSMI handler in firmware firmware: google: Unregister driver_info on failure and exit in gsmi firmware: google: Release devices before unregistering the bus slimbus: qcom: add missed clk_disable_unprepare in remove slimbus: Use the correct style for SPDX License Identifier slimbus: qcom-ngd-ctrl: Use dma_request_chan() instead dma_request_slave_channel() dt-bindings: SLIMBus: add slim devices optional properties ...
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