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* Merge branch 'WIP.x86-pti.base.prep-for-linus' of ↵Linus Torvalds2017-12-171-1/+1
|\ | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull Page Table Isolation (PTI) preparatory tree from Ingo Molnar: "This does a rename to free up linux/pti.h to be used by the upcoming page table isolation feature" * 'WIP.x86-pti.base.prep-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: drivers/misc/intel/pti: Rename the header file to free up the namespace
| * drivers/misc/intel/pti: Rename the header file to free up the namespaceIngo Molnar2017-12-171-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | We'd like to use the 'PTI' acronym for 'Page Table Isolation' - free up the namespace by renaming the <linux/pti.h> driver header to <linux/intel-pti.h>. (Also standardize the header guard name while at it.) Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: J Freyensee <james_p_freyensee@linux.intel.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
* | eeprom: at24: change nvmem stride to 1David Lechner2017-12-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Trying to read the MAC address from an eeprom that has an offset that is not a multiple of 4 causes an error currently. Fix it by changing the nvmem stride to 1. Cc: stable@vger.kernel.org Signed-off-by: David Lechner <david@lechnology.com> [Bartosz: tweaked the commit message] Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
* | eeprom: at24: fix I2C device selection for runtime PMSakari Ailus2017-12-031-14/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The at24 driver creates dummy I2C devices to access offsets in the chip that are outside the area supported using a single I2C address. It is not meaningful to use runtime PM to such devices; the system firmware (ACPI) does not know about these devices nor runtime PM was enabled for them. Always use the real device instead of the dummy ones. Fixes: 98e8201039af ("eeprom: at24: enable runtime pm support") Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> Tested-by: Sven Van Asbroeck on a 24AA16/24LC16B <svendev@arcx.com> [Bartosz: rebased on top of previous fixes for 4.15, tweaked the commit message] [Sven: fixed Bartosz's rebase] Signed-off-by: Sven Van Asbroeck <svendev@arcx.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
* | Merge branch 'i2c/for-current' of ↵Linus Torvalds2017-12-031-1/+18
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Here are two bugfixes for I2C, fixing a memleak in the core and irq allocation for i801. Also three bugfixes for the at24 eeprom driver which Bartosz collected while taking over maintainership for this driver" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: eeprom: at24: check at24_read/write arguments eeprom: at24: fix reading from 24MAC402/24MAC602 eeprom: at24: correctly set the size for at24mac402 i2c: i2c-boardinfo: fix memory leaks on devinfo i2c: i801: Fix Failed to allocate irq -2147483648 error
| * | eeprom: at24: check at24_read/write argumentsHeiner Kallweit2017-11-291-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | So far we completely rely on the caller to provide valid arguments. To be on the safe side perform an own sanity check. Cc: stable@vger.kernel.org Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
| * | eeprom: at24: fix reading from 24MAC402/24MAC602Heiner Kallweit2017-11-291-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Chip datasheet mentions that word addresses other than the actual start position of the MAC delivers undefined results. So fix this. Current implementation doesn't work due to this wrong offset. Cc: stable@vger.kernel.org Fixes: 0b813658c115 ("eeprom: at24: add support for at24mac series") Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
| * | eeprom: at24: correctly set the size for at24mac402Bartosz Golaszewski2017-11-291-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There's an ilog2() expansion in AT24_DEVICE_MAGIC() which rounds down the actual size of EUI-48 byte array in at24mac402 eeproms to 4 from 6, making it impossible to read it all. Fix it by manually adjusting the value in probe(). This patch contains a temporary fix that is suitable for stable branches. Eventually we'll probably remove the call to ilog2() while converting the magic values to actual structs. Cc: stable@vger.kernel.org Fixes: 0b813658c115 ("eeprom: at24: add support for at24mac series") Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
* | | Merge tag 'powerpc-4.15-3' of ↵Linus Torvalds2017-12-011-2/+10
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: "Two fixes for nasty kexec/kdump crashes in certain configurations. A couple of minor fixes for the new TIDR code. A fix for an oops in a CXL error handling path. Thanks to: Andrew Donnellan, Christophe Lombard, David Gibson, Mahesh Salgaonkar, Vaibhav Jain" * tag 'powerpc-4.15-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc: Do not assign thread.tidr if already assigned powerpc: Avoid signed to unsigned conversion in set_thread_tidr() powerpc/kexec: Fix kexec/kdump in P9 guest kernels powerpc/powernv: Fix kexec crashes caused by tlbie tracing cxl: Check if vphb exists before iterating over AFU devices
| * | cxl: Check if vphb exists before iterating over AFU devicesVaibhav Jain2017-11-231-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During an eeh a kernel-oops is reported if no vPHB is allocated to the AFU. This happens as during AFU init, an error in creation of vPHB is a non-fatal error. Hence afu->phb should always be checked for NULL before iterating over it for the virtual AFU pci devices. This patch fixes the kenel-oops by adding a NULL pointer check for afu->phb before it is dereferenced. Fixes: 9e8df8a21963 ("cxl: EEH support") Cc: stable@vger.kernel.org # v4.3+ Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | | lkdtm: include WARN format stringKees Cook2017-11-171-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In order to test the ordering of WARN format strings, actually include one in LKDTM. Link: http://lkml.kernel.org/r/1510100869-73751-2-git-send-email-keescook@chromium.org Signed-off-by: Kees Cook <keescook@chromium.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Fengguang Wu <fengguang.wu@intel.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | Merge tag 'powerpc-4.15-1' of ↵Linus Torvalds2017-11-168-83/+141
|\| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Michael Ellerman: "A bit of a small release, I suspect in part due to me travelling for KS. But my backlog of patches to review is smaller than usual, so I think in part folks just didn't send as much this cycle. Non-highlights: - Five fixes for the >128T address space handling, both to fix bugs in our implementation and to bring the semantics exactly into line with x86. Highlights: - Support for a new OPAL call on bare metal machines which gives us a true NMI (ie. is not masked by MSR[EE]=0) for debugging etc. - Support for Power9 DD2 in the CXL driver. - Improvements to machine check handling so that uncorrectable errors can be reported into the generic memory_failure() machinery. - Some fixes and improvements for VPHN, which is used under PowerVM to notify the Linux partition of topology changes. - Plumbing to enable TM (transactional memory) without suspend on some Power9 processors (PPC_FEATURE2_HTM_NO_SUSPEND). - Support for emulating vector loads form cache-inhibited memory, on some Power9 revisions. - Disable the fast-endian switch "syscall" by default (behind a CONFIG), we believe it has never had any users. - A major rework of the API drivers use when initiating and waiting for long running operations performed by OPAL firmware, and changes to the powernv_flash driver to use the new API. - Several fixes for the handling of FP/VMX/VSX while processes are using transactional memory. - Optimisations of TLB range flushes when using the radix MMU on Power9. - Improvements to the VAS facility used to access coprocessors on Power9, and related improvements to the way the NX crypto driver handles requests. - Implementation of PMEM_API and UACCESS_FLUSHCACHE for 64-bit. Thanks to: Alexey Kardashevskiy, Alistair Popple, Allen Pais, Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Balbir Singh, Benjamin Herrenschmidt, Breno Leitao, Christophe Leroy, Christophe Lombard, Cyril Bur, Frederic Barrat, Gautham R. Shenoy, Geert Uytterhoeven, Guilherme G. Piccoli, Gustavo Romero, Haren Myneni, Joel Stanley, Kamalesh Babulal, Kautuk Consul, Markus Elfring, Masami Hiramatsu, Michael Bringmann, Michael Neuling, Michal Suchanek, Naveen N. Rao, Nicholas Piggin, Oliver O'Halloran, Paul Mackerras, Pedro Miraglia Franco de Carvalho, Philippe Bergheaud, Sandipan Das, Seth Forshee, Shriya, Stephen Rothwell, Stewart Smith, Sukadev Bhattiprolu, Tyrel Datwyler, Vaibhav Jain, Vaidyanathan Srinivasan, and William A. Kennington III" * tag 'powerpc-4.15-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (151 commits) powerpc/64s: Fix Power9 DD2.0 workarounds by adding DD2.1 feature powerpc/64s: Fix masking of SRR1 bits on instruction fault powerpc/64s: mm_context.addr_limit is only used on hash powerpc/64s/radix: Fix 128TB-512TB virtual address boundary case allocation powerpc/64s/hash: Allow MAP_FIXED allocations to cross 128TB boundary powerpc/64s/hash: Fix fork() with 512TB process address space powerpc/64s/hash: Fix 128TB-512TB virtual address boundary case allocation powerpc/64s/hash: Fix 512T hint detection to use >= 128T powerpc: Fix DABR match on hash based systems powerpc/signal: Properly handle return value from uprobe_deny_signal() powerpc/fadump: use kstrtoint to handle sysfs store powerpc/lib: Implement UACCESS_FLUSHCACHE API powerpc/lib: Implement PMEM API powerpc/powernv/npu: Don't explicitly flush nmmu tlb powerpc/powernv/npu: Use flush_all_mm() instead of flush_tlb_mm() powerpc/powernv/idle: Round up latency and residency values powerpc/kprobes: refactor kprobe_lookup_name for safer string operations powerpc/kprobes: Blacklist emulate_update_regs() from kprobes powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace powerpc/kprobes: Disable preemption before invoking probe handler for optprobes ...
| * | Merge branch 'fixes' into nextMichael Ellerman2017-11-101-2/+11
| |\ \ | | | | | | | | | | | | | | | | | | | | We have some dependencies & conflicts between patches in fixes and things to go in next, both in the radix TLB flush code and the IMC PMU driver. So merge fixes into next.
| * | | cxl: Rework the implementation of cxl_stop_trace_psl9()Vaibhav Jain2017-11-063-32/+42
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Presently the PSL9 specific cxl_stop_trace_psl9() only stops the RX0 traces on the CXL adapter when a PSL error irq is triggered. The patch updates the function to stop all the traces arrays and move them to the FIN state. The implementation issues the mmio to TRACECFG register to stop the trace array iff it already not in FIN state. This prevents the issue of trace data being reset in case of multiple stop mmio issued for a single trace array. Also the patch does some refactoring of existing cxl_stop_trace_psl9() and cxl_stop_trace_psl8() functions by moving them to 'pci.c' from 'debugfs.c' file and marking them as static. Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Provide debugfs access to PSL_DEBUG/XSL_DEBUG registersVaibhav Jain2017-10-222-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Access to PSL/XSL_DEBUG registers on the adapter provides easy access to the debug facilities provided by PSL/XSL. So this patch adds two new files (debug, xsl-debug) to the cxl-adapter specific debugfs folder located at /sys/kernel/debugfs/cxl/card<n>, which will provide direct r/w access to corrosponding debug registers in the adapter config-space. Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Dump PSL_FIR register on PSL9 error irqVaibhav Jain2017-10-133-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For PSL9 currently we aren't dumping the PSL FIR register when a PSL error interrupt is triggered. Contents of this register are useful in debugging AFU issues. This patch fixes issue by adding a new service_layer_ops callback cxl_native_err_irq_dump_regs_psl9() to dump the PSL_FIR registers on a PSL error interrupt thereby bringing the behavior in line with PSL on POWER-8. Also the existing service_layer_ops callback for PSL8 has been renamed to cxl_native_err_irq_dump_regs_psl8(). Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Rename register PSL9_FIR2 to PSL9_FIR_MASKVaibhav Jain2017-10-103-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PSL9 doesn't have a FIR2 register as was the case with PSL8. However currently the register definitions in 'cxl.h' have a definition for PSL9_FIR2 that actually points to PSL9_FIR_MASK register in the P1 area at offset 0x308. So this patch renames the def PSL9_FIR2 to PSL9_FIR_MASK and updates the references in the code to point to the new identifier. It also removes the code to dump contents of FIR2 (FIR_MASK actually) in cxl_native_irq_dump_regs_psl9(). Fixes: f24be42aab37 ("cxl: Add psl9 specific code") Reported-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Add support for POWER9 DD2Christophe Lombard2017-10-063-36/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PSL initialization sequence has been updated to DD2. This patch adapts to the changes, retaining compatibility with DD1. The patch includes some changes to DD1 fix-ups as well. Tests performed on some of the old/new hardware. The function is_page_fault(), for POWER9, lists the Translation Checkout Responses where the page fault will be handled by copro_handle_mm_fault(). This list is too restrictive and not necessary. This patches removes this restriction and all page faults, whatever the reason, will be handled. In this case, the interruption is always acknowledged. The following features will be added soon: - phb reset when switching to capi mode. - cxllib update to support new functions. Signed-off-by: Christophe Lombard <clombard@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Reviewed-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Set the valid bit in PE for dedicated modeVaibhav Jain2017-10-031-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make sure to set the valid-bit in software-state field of the populated PE. This was earlier missing for dedicated mode AFUs, hence was causing a PSL freeze when the AFU was activated. Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com> Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
| * | | cxl: Enable global TLBIs for cxl contextsFrederic Barrat2017-09-283-5/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The PSL and nMMU need to see all TLB invalidations for the memory contexts used on the adapter. For the hash memory model, it is done by making all TLBIs global as soon as the cxl driver is in use. For radix, we need something similar, but we can refine and only convert to global the invalidations for contexts actually used by the device. The new mm_context_add_copro() API increments the 'active_cpus' count for the contexts attached to the cxl adapter. As soon as there's more than 1 active cpu, the TLBIs for the context become global. Active cpu count must be decremented when detaching to restore locality if possible and to avoid overflowing the counter. The hash memory model support is somewhat limited, as we can't decrement the active cpus count when mm_context_remove_copro() is called, because we can't flush the TLB for a mm on hash. So TLBIs remain global on hash. Signed-off-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com> Fixes: f24be42aab37 ("cxl: Add psl9 specific code") Tested-by: Alistair Popple <alistair@popple.id.au> [mpe: Fold in updated comment on the barrier from Fred] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
* | | | Merge tag 'char-misc-4.15-rc1' of ↵Linus Torvalds2017-11-168-48/+53
|\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc updates from Greg KH: "Here is the big set of char/misc and other driver subsystem patches for 4.15-rc1. There are small changes all over here, hyperv driver updates, pcmcia driver updates, w1 driver updats, vme driver updates, nvmem driver updates, and lots of other little one-off driver updates as well. The shortlog has the full details. All of these have been in linux-next for quite a while with no reported issues" * tag 'char-misc-4.15-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (90 commits) VME: Return -EBUSY when DMA list in use w1: keep balance of mutex locks and refcnts MAINTAINERS: Update VME subsystem tree. nvmem: sunxi-sid: add support for A64/H5's SID controller nvmem: imx-ocotp: Update module description nvmem: imx-ocotp: Enable i.MX7D OTP write support nvmem: imx-ocotp: Add i.MX7D timing write clock setup support nvmem: imx-ocotp: Move i.MX6 write clock setup to dedicated function nvmem: imx-ocotp: Add support for banked OTP addressing nvmem: imx-ocotp: Pass parameters via a struct nvmem: imx-ocotp: Restrict OTP write to IMX6 processors nvmem: uniphier: add UniPhier eFuse driver dt-bindings: nvmem: add description for UniPhier eFuse nvmem: set nvmem->owner to nvmem->dev->driver->owner if unset nvmem: qfprom: fix different address space warnings of sparse nvmem: mtk-efuse: fix different address space warnings of sparse nvmem: mtk-efuse: use stack for nvmem_config instead of malloc'ing it nvmem: imx-iim: use stack for nvmem_config instead of malloc'ing it thunderbolt: tb: fix use after free in tb_activate_pcie_devices MAINTAINERS: Add git tree for Thunderbolt development ...
| * | | | drivers/sgi-xp: Convert timers to use timer_setup()Kees Cook2017-11-042-18/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In preparation for unconditionally passing the struct timer_list pointer to all timer callbacks, switch to using the new timer_setup() and from_timer() to pass the timer pointer explicitly. Cc: Cliff Whickman <cpw@sgi.com> Signed-off-by: Kees Cook <keescook@chromium.org> Acked-by: Robin Holt <robinmholt@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | genwqe: Take R/W permissions into account when dealing with memory pagesGuilherme G. Piccoli2017-10-233-18/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently we assume userspace pages are always writable when doing memory pinning. This is not true, specially since userspace applications may allocate their memory the way they want, we have no control over it. If a read-only page is set for pinning, currently the driver fails due to get_user_pages_fast() refusing to map read-only pages as writable. This patch changes this behavior, by taking the permission flags of the pages into account in both pinning/unpinning process, as well as in the DMA data copy-back to userpace (which we shouldn't try to do blindly, since it will fail in case of read-only-pages). Signed-off-by: Frank Haverkamp <haver@linux.vnet.ibm.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | lkdtm: Constify the crashtypes tableKees Cook2017-10-201-9/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since nothing in the crashtypes table ever changes, mark it const. Adds some missing "static" markings as well. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | lkdtm: Convert from jprobe to kprobeKees Cook2017-10-201-109/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The jprobe subsystem is being removed, so convert to using kprobe instead. Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | tracing, mei: Remove unused trace event mei_pci_cfg_writeSteven Rostedt (VMware)2017-10-202-20/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit a96c548291 ("mei: trace pci configuration space io") added the trace event mei_pci_cfg_write but never used it. As trace events that are defined take up space for data structures and functions created for them, it is a waste of memory to have one defined but not used. Remove this trace event. Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | Merge 4.14-rc5 into char-misc-nextGreg Kroah-Hartman2017-10-164-31/+37
| |\ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need the fixes in here to resolve merge issues and for testing. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | misc: mic: move to its own menu in Misc devicesRandy Dunlap2017-10-041-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Move the Intel MIC drivers into their own menu. This is due to the number of drivers (Kconfig entries) here and it simplifies (cleans up) the "Misc devices" menu. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Sudeep Dutt <sudeep.dutt@intel.com> Cc: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | misc: altera-stapl: drop Kconfig commentRandy Dunlap2017-10-041-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When I2C is enabled, the comment string for "Altera FPGA firmware download module" adds no new information or value. It is only useful and interesting when I2C is not enabled. In that case, have it show that I2C is needed for that module. Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Igor M. Liplianin <liplianin@netup.ru> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | misc: pci_endpoint_test: Avoid triggering a BUG()Dan Carpenter2017-10-041-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If you call ida_simple_remove(&pci_endpoint_test_ida, id) with a negative "id" then it triggers an immediate BUG_ON(). Let's not allow that. Fixes: 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| * | | | | misc: pci_endpoint_test: Prevent some integer overflowsDan Carpenter2017-10-041-0/+9
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "size + max" can have an arithmetic overflow when we're allocating: orig_src_addr = dma_alloc_coherent(dev, size + alignment, ... I've added a few checks to prevent that. Fixes: 13107c60681f ("misc: pci_endpoint_test: Add support to provide aligned buffer addresses") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* | | | | Merge branch 'akpm' (patches from Andrew)Linus Torvalds2017-11-151-2/+0
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Merge updates from Andrew Morton: - a few misc bits - ocfs2 updates - almost all of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (131 commits) memory hotplug: fix comments when adding section mm: make alloc_node_mem_map a void call if we don't have CONFIG_FLAT_NODE_MEM_MAP mm: simplify nodemask printing mm,oom_reaper: remove pointless kthread_run() error check mm/page_ext.c: check if page_ext is not prepared writeback: remove unused function parameter mm: do not rely on preempt_count in print_vma_addr mm, sparse: do not swamp log with huge vmemmap allocation failures mm/hmm: remove redundant variable align_end mm/list_lru.c: mark expected switch fall-through mm/shmem.c: mark expected switch fall-through mm/page_alloc.c: broken deferred calculation mm: don't warn about allocations which stall for too long fs: fuse: account fuse_inode slab memory as reclaimable mm, page_alloc: fix potential false positive in __zone_watermark_ok mm: mlock: remove lru_add_drain_all() mm, sysctl: make NUMA stats configurable shmem: convert shmem_init_inodecache() to void Unify migrate_pages and move_pages access checks mm, pagevec: rename pagevec drained field ...
| * | | | | kmemcheck: remove annotationsLevin, Alexander (Sasha Levin)2017-11-151-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch series "kmemcheck: kill kmemcheck", v2. As discussed at LSF/MM, kill kmemcheck. KASan is a replacement that is able to work without the limitation of kmemcheck (single CPU, slow). KASan is already upstream. We are also not aware of any users of kmemcheck (or users who don't consider KASan as a suitable replacement). The only objection was that since KASAN wasn't supported by all GCC versions provided by distros at that time we should hold off for 2 years, and try again. Now that 2 years have passed, and all distros provide gcc that supports KASAN, kill kmemcheck again for the very same reasons. This patch (of 4): Remove kmemcheck annotations, and calls to kmemcheck from the kernel. [alexander.levin@verizon.com: correctly remove kmemcheck call from dma_map_sg_attrs] Link: http://lkml.kernel.org/r/20171012192151.26531-1-alexander.levin@verizon.com Link: http://lkml.kernel.org/r/20171007030159.22241-2-alexander.levin@verizon.com Signed-off-by: Sasha Levin <alexander.levin@verizon.com> Cc: Alexander Potapenko <glider@google.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: Pekka Enberg <penberg@kernel.org> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Tim Hansen <devtimhansen@gmail.com> Cc: Vegard Nossum <vegardno@ifi.uio.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | | | Merge tag 'pci-v4.15-changes' of ↵Linus Torvalds2017-11-151-2/+31
|\ \ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: - detach driver before tearing down procfs/sysfs (Alex Williamson) - disable PCIe services during shutdown (Sinan Kaya) - fix ASPM oops on systems with no Root Ports (Ard Biesheuvel) - fix ASPM LTR_L1.2_THRESHOLD programming (Bjorn Helgaas) - fix ASPM Common_Mode_Restore_Time computation (Bjorn Helgaas) - fix portdrv MSI/MSI-X vector allocation (Dongdong Liu, Bjorn Helgaas) - report non-fatal AER errors only to the affected endpoint (Gabriele Paoloni) - distribute bus numbers, MMIO, and I/O space among hotplug bridges to allow more devices to be hot-added (Mika Westerberg) - fix pciehp races during initialization and surprise link down (Mika Westerberg) - handle surprise-removed devices in PME handling (Qiang) - support resizable BARs for large graphics devices (Christian König) - expose SR-IOV offset, stride, and VF device ID via sysfs (Filippo Sironi) - create SR-IOV virtfn/physfn sysfs links before attaching driver (Stuart Hayes) - fix SR-IOV "ARI Capable Hierarchy" restore issue (Tony Nguyen) - enforce Kconfig IOV/REALLOC dependency (Sascha El-Sharkawy) - avoid slot reset if bridge itself is broken (Jan Glauber) - clean up pci_reset_function() path (Jan H. Schönherr) - make pci_map_rom() fail if the option ROM is invalid (Changbin Du) - convert timers to timer_setup() (Kees Cook) - move PCI_QUIRKS to PCI bus Kconfig menu (Randy Dunlap) - constify pci_dev_type and intel_mid_pci_ops (Bhumika Goyal) - remove unnecessary pci_dev, pci_bus, resource, pcibios_set_master() declarations (Bjorn Helgaas) - fix endpoint framework overflows and BUG()s (Dan Carpenter) - fix endpoint framework issues (Kishon Vijay Abraham I) - avoid broken Cavium CN8xxx bus reset behavior (David Daney) - extend Cavium ACS capability quirks (Vadim Lomovtsev) - support Synopsys DesignWare RC in ECAM mode (Ard Biesheuvel) - turn off dra7xx clocks cleanly on shutdown (Keerthy) - fix Faraday probe error path (Wei Yongjun) - support HiSilicon STB SoC PCIe host controller (Jianguo Sun) - fix Hyper-V interrupt affinity issue (Dexuan Cui) - remove useless ACPI warning for Hyper-V pass-through devices (Vitaly Kuznetsov) - support multiple MSI on iProc (Sandor Bodo-Merle) - support Layerscape LS1012a and LS1046a PCIe host controllers (Hou Zhiqiang) - fix Layerscape default error response (Minghuan Lian) - support MSI on Tango host controller (Marc Gonzalez) - support Tegra186 PCIe host controller (Manikanta Maddireddy) - use generic accessors on Tegra when possible (Thierry Reding) - support V3 Semiconductor PCI host controller (Linus Walleij) * tag 'pci-v4.15-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (85 commits) PCI/ASPM: Add L1 Substates definitions PCI/ASPM: Reformat ASPM register definitions PCI/ASPM: Use correct capability pointer to program LTR_L1.2_THRESHOLD PCI/ASPM: Account for downstream device's Port Common_Mode_Restore_Time PCI: xgene: Rename xgene_pcie_probe_bridge() to xgene_pcie_probe() PCI: xilinx: Rename xilinx_pcie_link_is_up() to xilinx_pcie_link_up() PCI: altera: Rename altera_pcie_link_is_up() to altera_pcie_link_up() PCI: Fix kernel-doc build warning PCI: Fail pci_map_rom() if the option ROM is invalid PCI: Move pci_map_rom() error path PCI: Move PCI_QUIRKS to the PCI bus menu alpha/PCI: Make pdev_save_srm_config() static PCI: Remove unused declarations PCI: Remove redundant pci_dev, pci_bus, resource declarations PCI: Remove redundant pcibios_set_master() declarations PCI/PME: Handle invalid data when reading Root Status PCI: hv: Use effective affinity mask PCI: pciehp: Do not clear Presence Detect Changed during initialization PCI: pciehp: Fix race condition handling surprise link down PCI: Distribute available resources to hotplug-capable bridges ...
| * | | | | | misc: pci_endpoint_test: Fix BUG_ON error during pci_disable_msi()Kishon Vijay Abraham I2017-10-311-0/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | pci_disable_msi() throws a Kernel BUG if the driver has successfully requested an IRQ and not released it. Fix it here by freeing IRQs before invoking pci_disable_msi(). Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | | | | | misc: pci_endpoint_test: Fix pci_endpoint_test not releasing resources on removeKishon Vijay Abraham I2017-10-311-2/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | sscanf(misc_device->name, DRV_MODULE_NAME ".%d", &id) in pci_endpoint_test_remove() returns 0, which results in returning early without releasing the resources. This is as a result of misc_device not having a valid name. Fix it here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | | | | | misc: pci_endpoint_test: Fix failure path return values in probeKishon Vijay Abraham I2017-10-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Return value of pci_endpoint_test_probe is not set properly in a couple of failure cases. Fix it here. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
| * | | | | | misc: pci_endpoint_test: Avoid triggering a BUG()Dan Carpenter2017-10-311-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If you call ida_simple_remove(&pci_endpoint_test_ida, id) with a negative "id" then it triggers an immediate BUG_ON(). Let's not allow that. Fixes: 2c156ac71c6b ("misc: Add host side PCI driver for PCI test function device") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
| * | | | | | misc: pci_endpoint_test: Prevent some integer overflowsDan Carpenter2017-10-171-0/+9
| | |/ / / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | "size + max" can have an arithmetic overflow when we're allocating: orig_src_addr = dma_alloc_coherent(dev, size + alignment, ... Add a few checks to prevent that. Fixes: 13107c60681f ("misc: pci_endpoint_test: Add support to provide aligned buffer addresses") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
* | | | | | Merge tag 'modules-for-v4.15' of ↵Linus Torvalds2017-11-151-1/+2
|\ \ \ \ \ \ | |_|/ / / / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux Pull module updates from Jessica Yu: "Summary of modules changes for the 4.15 merge window: - treewide module_param_call() cleanup, fix up set/get function prototype mismatches, from Kees Cook - minor code cleanups" * tag 'modules-for-v4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux: module: Do not paper over type mismatches in module_param_call() treewide: Fix function prototypes for module_param_call() module: Prepare to convert all module_param_call() prototypes kernel/module: Delete an error message for a failed memory allocation in add_module_usage()
| * | | | | treewide: Fix function prototypes for module_param_call()Kees Cook2017-10-311-1/+2
| | |/ / / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Several function prototypes for the set/get functions defined by module_param_call() have a slightly wrong argument types. This fixes those in an effort to clean up the calls when running under type-enforced compiler instrumentation for CFI. This is the result of running the following semantic patch: @match_module_param_call_function@ declarer name module_param_call; identifier _name, _set_func, _get_func; expression _arg, _mode; @@ module_param_call(_name, _set_func, _get_func, _arg, _mode); @fix_set_prototype depends on match_module_param_call_function@ identifier match_module_param_call_function._set_func; identifier _val, _param; type _val_type, _param_type; @@ int _set_func( -_val_type _val +const char * _val , -_param_type _param +const struct kernel_param * _param ) { ... } @fix_get_prototype depends on match_module_param_call_function@ identifier match_module_param_call_function._get_func; identifier _val, _param; type _val_type, _param_type; @@ int _get_func( -_val_type _val +char * _val , -_param_type _param +const struct kernel_param * _param ) { ... } Two additional by-hand changes are included for places where the above Coccinelle script didn't notice them: drivers/platform/x86/thinkpad_acpi.c fs/lockd/svc.c Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Jessica Yu <jeyu@kernel.org>
* | | | | Merge branch 'for-linus' of ↵Linus Torvalds2017-11-152-3/+5
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial Pull trivial tree updates from Jiri Kosina: "The usual rocket-science from trivial tree for 4.15" * 'for-linus' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: MAINTAINERS: relinquish kconfig MAINTAINERS: Update my email address treewide: Fix typos in Kconfig kfifo: Fix comments init/Kconfig: Fix module signing document location misc: ibmasm: Return error on error path HID: logitech-hidpp: fix mistake in printk, "feeback" -> "feedback" MAINTAINERS: Correct path to uDraw PS3 driver tracing: Fix doc mistakes in trace sample tracing: Kconfig text fixes for CONFIG_HWLAT_TRACER MIPS: Alchemy: Remove reverted CONFIG_NETLINK_MMAP from db1xxx_defconfig mm/huge_memory.c: fixup grammar in comment lib/xz: Add fall-through comments to a switch statement
| * | | | | misc: ibmasm: Return error on error pathAnton Vasilyev2017-10-122-3/+5
| | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If ibmasm_event_buffer_init() or ibmasm_heartbeat_init() fails, then ibmasm_init_one() release all resources and return 0 on error path. The patch adds corresponding error for fails. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Anton Vasilyev <vasilyev@ispras.ru> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | | | Merge branch 'i2c/for-4.15' of ↵Linus Torvalds2017-11-141-1/+111
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c updates from Wolfram Sang: "This contains two bigger than usual tree-wide changes this time. They all have proper acks, caused no merge conflicts in linux-next where they have been for a while. They are namely: - to-gpiod conversion of the i2c-gpio driver and its users (touching arch/* and drivers/mfd/*) - adding a sbs-manager based on I2C core updates to SMBus alerts (touching drivers/power/*) Other notable changes: - i2c_boardinfo can now carry a dev_name to be used when the device is created. This is because some devices in ACPI world need fixed names to find the regulators. - the designware driver got a long discussed overhaul of its PM handling. img-scb and davinci got PM support, too. - at24 driver has way better OF support. And it has a new maintainer. Thanks Bartosz for stepping up! The rest is regular driver updates and fixes" * 'i2c/for-4.15' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (55 commits) ARM: sa1100: simpad: Correct I2C GPIO offsets i2c: aspeed: Deassert reset in probe eeprom: at24: Add OF device ID table MAINTAINERS: new maintainer for AT24 driver i2c: nuc900: remove platform_data, too i2c: thunderx: Remove duplicate NULL check i2c: taos-evm: Remove duplicate NULL check i2c: Make i2c_unregister_device() NULL-aware i2c: xgene-slimpro: Support v2 i2c: mpc: remove useless variable initialization i2c: omap: Trigger bus recovery in lockup case i2c: gpio: Add support for named gpios in DT dt-bindings: i2c: i2c-gpio: Add support for named gpios i2c: gpio: Local vars in probe i2c: gpio: Augment all boardfiles to use open drain i2c: gpio: Enforce open drain through gpiolib gpio: Make it possible for consumers to enforce open drain i2c: gpio: Convert to use descriptors power: supply: sbs-message: fix some code style issues power: supply: sbs-battery: remove unchecked return var ...
| * | | | | eeprom: at24: Add OF device ID tableJavier Martinez Canillas2017-11-051-1/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The driver doesn't have a struct of_device_id table but supported devices are registered via Device Trees. This is working on the assumption that a I2C device registered via OF will always match a legacy I2C device ID and that the MODALIAS reported will always be of the form i2c:<device>. But this could change in the future so the correct approach is to have an OF device ID table if the devices are registered via OF. To maintain backward compatibility with old Device Trees, only use the OF device ID table .data if the device was registered via OF and the OF node compatible matches an entry in the OF device ID table. Suggested-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | | | Merge branch 'i2c-mux/for-next' of https://github.com/peda-r/i2c-mux into ↵Wolfram Sang2017-10-264-31/+37
| |\ \ \ \ \ | | | |/ / / | | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | i2c/for-4.15 This cycle has been real quiet for me. There's only the one trivial patch that somewhat simplifies DT parsing in the i2c-mux-reg driver.
| * | | | | eeprom: at24: enable runtime pm supportDivagar Mohandass2017-10-171-0/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the device is kept in D0, there is an opportunity to save power by enabling runtime pm. Device can be daisy chained from PMIC and we can't rely on I2C core for auto resume/suspend. Driver will decide when to resume/suspend. Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Divagar Mohandass <divagar.mohandass@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
| * | | | | eeprom: at24: add support to fetch eeprom device property "size"Divagar Mohandass2017-10-171-0/+4
| | |_|/ / | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Obtain the size of the EEPROM chip from DT if the "size" property is specified for the device. Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com> Signed-off-by: Divagar Mohandass <divagar.mohandass@intel.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
* | | | | Merge tag 'iommu-v4.15-rc1' of git://github.com/awilliam/linux-vfioLinus Torvalds2017-11-141-2/+1
|\ \ \ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull IOMMU updates from Alex Williamson: "As Joerg mentioned[1], he's out on paternity leave through the end of the year and I'm filling in for him in the interim: - Enforce MSI multiple IRQ alignment in AMD IOMMU - VT-d PASID error handling fixes - Add r8a7795 IPMMU support - Manage runtime PM links on exynos at {add,remove}_device callbacks - Fix Mediatek driver name to avoid conflict - Add terminate support to qcom fault handler - 64-bit IOVA optimizations - Simplfy IOVA domain destruction, better use of rcache, and skip anchor nodes on copy - Convert to IOMMU TLB sync API in io-pgtable-arm{-v7s} - Drop command queue lock when waiting for CMD_SYNC completion on ARM SMMU implementations supporting MSI to cacheable memory - iomu-vmsa cleanup inspired by missed IOTLB sync callbacks - Fix sleeping lock with preemption disabled for RT - Dual MMU support for TI DRA7xx DSPs - Optional flush option on IOVA allocation avoiding overhead when caller can try other options [1] https://lkml.org/lkml/2017/10/22/72" * tag 'iommu-v4.15-rc1' of git://github.com/awilliam/linux-vfio: (54 commits) iommu/iova: Use raw_cpu_ptr() instead of get_cpu_ptr() for ->fq iommu/mediatek: Fix driver name iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code iommu/ipmmu-vmsa: Allow two bit SL0 iommu/ipmmu-vmsa: Make IMBUSCTR setup optional iommu/ipmmu-vmsa: Write IMCTR twice iommu/ipmmu-vmsa: IPMMU device is 40-bit bus master iommu/ipmmu-vmsa: Make use of IOMMU_OF_DECLARE() iommu/ipmmu-vmsa: Enable multi context support iommu/ipmmu-vmsa: Add optional root device feature iommu/ipmmu-vmsa: Introduce features, break out alias iommu/ipmmu-vmsa: Unify ipmmu_ops iommu/ipmmu-vmsa: Clean up struct ipmmu_vmsa_iommu_priv iommu/ipmmu-vmsa: Simplify group allocation iommu/ipmmu-vmsa: Unify domain alloc/free iommu/ipmmu-vmsa: Fix return value check in ipmmu_find_group_dma() iommu/vt-d: Clear pasid table entry when memory unbound iommu/vt-d: Clear Page Request Overflow fault bit iommu/vt-d: Missing checks for pasid tables if allocation fails iommu/amd: Limit the IOVA page range to the specified addresses ...
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| *-. \ \ \ \ Merge branches 'iommu/fixes', 'arm/omap', 'arm/exynos', 'x86/amd', ↵Joerg Roedel2017-10-131-2/+1
| |\ \ \ \ \ \ | | | |/ / / / | | |/| | / / | | |_|_|/ / | |/| | | | 'x86/vt-d' and 'core' into next