- 08 2月, 2016 15 次提交
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由 Tomas Winkler 提交于
Remove duplicated parameter validation from mei_amthif_write functions, The parameter check is already performed by the caller function mei_write Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Now when we have per client rd_completed list we can remove the amthif specific amthif_rd_complete_list. In addition in the function mei_amthif_read do not loop over the rd_completed list like the original code as the code path is unlocked. Reviewed-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
A next amthif write can be executed only after the previous one has completed. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
The driver uses three names file, fp, and file_object for struct file type. To improve code clarity and adjust to my taste rename file_object to more common and shorter fp. Reviewed-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
The struct file file pointer is used as an opaque handle to for a connected client, for this part the pointer should be immutable and should be set to count. Reviewed-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
Since the driver now uses a list for storing read packets instead of single variable a pending read is no longer blocking other connections. A pending read will be discarded up the file closure. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
If empty message come from FW (buf_idx == 0) then the current code will still try to copy data from not filled buffer to the user-space, instead the code should behave the same as when end of a message has been reached, clean resources and return 0 Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
If registering of character device failed stop the device properly. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
There is a possible integer overflow following by a buffer overflow when accumulating messages coming from the FW to compose a full payload. Occurrence of wrap around has to be prevented for next message size calculation. For unsigned integer the addition overflow has occurred when the result is smaller than one of the arguments. To simplify the fix, the types of buf.size and buf_idx are set to the same width, namely size_t also to be aligned with the type of length parameter in file read/write ops. Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
HBM features list is ready while sending enumerate request and enumerating clients, output it to debugfs in these states too. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
In case of many active host clients clients (41 and more) 1K buffer is not enough for full information print. Calculate buffer size according to real clients number. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Use tracing events also for reading and writing pci configuration space <debugfs>/tracing/events/mei/mei_pci_reg_{read,write} Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
For Intel SKL platform the ME device can inform the host via asynchronous notification that the watchdog feature was activated on the device. The activation doesn't require reboot. In that case the driver registers the watchdog device with the kernel. Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Add entry for displaying whether the device has activated or deactivated watchdog fw application. cat <debugfs>/mei_wdt/activation activated | deactivated Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
For Intel Broadwell and newer platforms, the ME device can inform the host whether the watchdog functionality is activated or not. If the watchdog functionality is not activated then the watchdog interface can be not registered and eliminate unnecessary pings and hence lower the power consumption by avoiding waking up the device. The feature can be deactivated also without reboot in that case the watchdog device should be unregistered at runtime. The information regarding the deactivation is reported in the ping response command. In runtime case the unregistration has to be run from a worker so that the ping initiated by the watchdog core completes. Otherwise the flow will deadlock on watchdog core mutex which both ping and unregistration acquire. Reviewed-by: NGuenter Roeck <linux@roeck-us.net> Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 07 2月, 2016 8 次提交
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由 Tomas Winkler 提交于
The iAMT WD client has to be whitelisted sice it has two connections and is filtered out by number_of_connections fixup. Also the API has changed for BDW and SKL but firmware haven't updated the protocol version. Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Add entry for displaying current watchdog internal state cat <debugfs>/mei_wdt/state IDLE|START|RUNNING|STOPPING Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Create a driver with the generic watchdog interface for the MEI iAMT watchdog device. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
Instead of integrating the iAMT watchdog in the mei core driver we will create a watchdog device on the mei client bus and create a driver for it. This patch removes the watchdog code from the mei core driver. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
We left few function prototypes in the header file after moving nfc logic to bus. Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
Copy completed callback content to the user space if we have such callback ready in the beginning of the read. Simplify offset processing logic as byproduct. This is a refinement for: commit 139aacf7 ("mei: fix read after read scenario") Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alexander Usyskin 提交于
The MEI FW can receive only one flow control for read. Currently the driver only checks if a flow control credit was already sent and read is pending in the rd_pending queue, but it also has to check if flow control credit already queued in the write control queue to prevent sending more than one flow control credits. Signed-off-by: NAlexander Usyskin <alexander.usyskin@intel.com> Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Tomas Winkler 提交于
Remove uuid from the debug messages in bus-fixup.c as this is already part of the device name. Signed-off-by: NTomas Winkler <tomas.winkler@intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 29 1月, 2016 9 次提交
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由 Shraddha Barke 提交于
Function nand_setup_cmd_params has 2 goals- -Initialize the cmd_params field so that it can be used to send and read commands from the device. -Get a bus address for the allocated memory to transfer to the device. Replace the combination of devm_kzalloc and _pa() with dmam_alloc_coherent. Coherent mapping guarantees that the device and CPU are in sync. Signed-off-by: NShraddha Barke <shraddha.6596@gmail.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Jason Hu 提交于
Add ACPI binding to the android pipe driver Signed-off-by: NJason Hu <jia-cheng.hu@intel.com> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Yu Ning 提交于
For reading and writing guest user space buffers, currently the kernel sends the guest virtual address of the buffer to the pipe device. This virtual address has to be first converted to a guest physical address. Doing this translation on the QEMU side is inefficient and requires additional handling when KVM is enabled, whose implementation would either incur intrusive changes to QEMU's KVM support code or suffer from poor performance, see commit 08c7228c50f8 ("x86-kvm: only sync SREGS when doing address translation") of $AOSP/external/qemu for details, and thus should be avoided if possible. There is a TODO comment in hw/misc/android_pipe.c in the new Android emulator source tree ($AOSP/external/qemu-android) which requests that the translation be done on the kernel side and that physical addresses be passed to the device instead of virtual ones. Once the QEMU-side implementation is done, the kernel will need to support both the new paddr-based pipe device and the old vaddr-based one (which will continue to be used by the classic emulator). This patch achieves that by leveraging the device version register available in the new device. See https://android-review.googlesource.com/128280 for the QEMU-side patch. In addition, use the mmap semaphore (in read mode) to safeguard the call to get_user_pages(). Signed-off-by: NYu Ning <yu.ning@intel.com> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Miodrag Dinic 提交于
Enable CONFIG_GOLDFISH for MIPS platforms. Signed-off-by: NMiodrag Dinic <miodrag.dinic@imgtec.com> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Greg Hackmann 提交于
On PIPE_ERROR_AGAIN, just stopping in the middle of a transfer and returning the number of bytes actually handled is the right behavior. Other errors should be returned on the next read() or write() call. Continue logging those until we confirm nothing actually relies on the existing (wrong) behavior of dropping errors on the floor. Signed-off-by: NGreg Hackmann <ghackmann@google.com> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Greg Hackmann 提交于
Add bindings so we don't need to rely on goldfish virtual bus for probing any more, which means we don't need ARM and MIPS goldfish board code for instantiating the bus. In the long term we would like to move towards replacing the Android pipe with virtio-vsock that is currently under development. Signed-off-by: NGreg Hackmann <ghackmann@google.com> Signed-off-by: NJin Qian <jinqian@android.com> Acked-by: NRob Herring <robh@kernel.org> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Christoffer Dall 提交于
The existing code had a troubling TODO statement concerning the fact that it just did a check if the page that the QEMU backend was going to read from / write to was there before the call to the QEMU backend and then relying on the fact that the page stayed around, even in a preemptible SMP kernel. Obviously the page could go away or be reassigned, and strange things may happen. Further, writes were not tracked, so any use of COW or KSM-like features would break completely. Probably that was never used by adbd (the only current active user of the pipe), but could prove much more dangerous for the GPU passthrough mechanism. Instead, use get_user_pages() as the comment suggested and cleanup the error path and add the set_page_dirt() call on a successful read operation. Also clarify the count used to return from successful read/write calls and use Linux style commentary in various places of the file. Note: The "just ignore error and return whatever we read so far" error handling is really quite horrific. I cannot change it without a more careful study of all user space ABIs reliance on this 'feature'. Signed-off-by: NChristoffer Dall <christoffer.dall@linaro.org> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Alex Bennée 提交于
It just makes it harder to figure out which commands are being used. Signed-off-by: NAlex Bennée <alex.bennee@linaro.org> Signed-off-by: NJin Qian <jinqian@android.com> Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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由 Greg Hackmann 提交于
On new virtual devices, the goldfish virtual bus can be replaced with autoprobing infrastructure like Device Tree. Refactor the goldfish kernel configs to better accommodate this. Move the goldfish platform into a menuconfig in the style of the chrome platform, and separate the goldfish bus into its own config option. Signed-off-by: NGreg Hackmann <ghackmann@google.com> Signed-off-by: NJin Qian <jinqian@android.com> [Corrected a tristate to bool] Signed-off-by: NAlan Cox <alan@linux.intel.com> Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>
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- 25 1月, 2016 8 次提交
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由 Linus Torvalds 提交于
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git://git.linux-mips.org/pub/scm/ralf/upstream-linus由 Linus Torvalds 提交于
Pull MIPS updates from Ralf Baechle: "This is the main pull request for MIPS for 4.5 plus some 4.4 fixes. The executive summary: - ATH79 platform improvments, use DT bindings for the ATH79 USB PHY. - Avoid useless rebuilds for zboot. - jz4780: Add NEMC, BCH and NAND device tree nodes - Initial support for the MicroChip's DT platform. As all the device drivers are missing this is still of limited use. - Some Loongson3 cleanups. - The unavoidable whitespace polishing. - Reduce clock skew when synchronizing the CPU cycle counters on CPU startup. - Add MIPS R6 fixes. - Lots of cleanups across arch/mips as fallout from KVM. - Lots of minor fixes and changes for IEEE 754-2008 support to the FPU emulator / fp-assist software. - Minor Ralink, BCM47xx and bcm963xx platform support improvments. - Support SMP on BCM63168" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (84 commits) MIPS: zboot: Add support for serial debug using the PROM MIPS: zboot: Avoid useless rebuilds MIPS: BMIPS: Enable ARCH_WANT_OPTIONAL_GPIOLIB MIPS: bcm63xx: nvram: Remove unused bcm63xx_nvram_get_psi_size() function MIPS: bcm963xx: Update bcm_tag field image_sequence MIPS: bcm963xx: Move extended flash address to bcm_tag header file MIPS: bcm963xx: Move Broadcom BCM963xx image tag data structure MIPS: bcm63xx: nvram: Use nvram structure definition from header file MIPS: bcm963xx: Add Broadcom BCM963xx board nvram data structure MAINTAINERS: Add KVM for MIPS entry MIPS: KVM: Add missing newline to kvm_err() MIPS: Move KVM specific opcodes into asm/inst.h MIPS: KVM: Use cacheops.h definitions MIPS: Break down cacheops.h definitions MIPS: Use EXCCODE_ constants with set_except_vector() MIPS: Update trap codes MIPS: Move Cause.ExcCode trap codes to mipsregs.h MIPS: KVM: Make kvm_mips_{init,exit}() static MIPS: KVM: Refactor added offsetof()s MIPS: KVM: Convert EXPORT_SYMBOL to _GPL ...
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由 Linus Torvalds 提交于
Merge tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86 Pull x86 platform driver updates from Darren Hart: "Emergency travel prevented me from completing my final testing on this until today. Nothing here that couldn't wait until RC1 fixes, but I thought it best to get it out sooner rather than later as it does contain a build warning fix. Summary: A build warning fix, MAINTAINERS cleanup, and a new DMI quirk: ideapad-laptop: - Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: - Combine multiple telemetry entries intel_telemetry_debugfs: - Fix unused warnings in telemetry debugfs" * tag 'platform-drivers-x86-v4.5-2' of git://git.infradead.org/users/dvhart/linux-platform-drivers-x86: ideapad-laptop: Add Lenovo Yoga 700 to no_hw_rfkill dmi list MAINTAINERS: Combine multiple telemetry entries intel_telemetry_debugfs: Fix unused warnings in telemetry debugfs
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git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux由 Linus Torvalds 提交于
Pull thermal management updates from Zhang Rui: "The top merge commit was re-generated yesterday because two topic branches were dropped from this pull request in the last minute due to some unaddressed comments. All the other material has been in linux-next for quite a while. Specifics: - Enhance thermal core to handle unexpected device cooling states after fresh boot and system resume. From Zhang Rui and Chen Yu. - Several fixes and cleanups on Rockchip and RCAR thermal drivers. From Caesar Wang and Kuninori Morimoto. - Add Broxton support for Intel processor thermal reporting device driver. From Amy Wiles" * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: thermal: trip_point_temp_store() calls thermal_zone_device_update() thermal: rcar: rcar_thermal_get_temp() return error if strange temp thermal: rcar: check irq possibility in rcar_thermal_irq_xxx() thermal: rcar: check every rcar_thermal_update_temp() return value thermal: rcar: move rcar_thermal_dt_ids to upside thermal: rockchip: Support the RK3399 SoCs in thermal driver thermal: rockchip: Support the RK3228 SoCs in thermal driver dt-bindings: rockchip-thermal: Support the RK3228/RK3399 SoCs compatible thermal: rockchip: fix a trivial typo Thermal: Enable Broxton SoC thermal reporting device thermal: constify pch_dev_ops structure Thermal: do thermal zone update after a cooling device registered Thermal: handle thermal zone device properly during system sleep Thermal: initialize thermal zone device correctly
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs由 Linus Torvalds 提交于
Pull 9p updates from Eric Van Hensbergen: "Sorry for the last minute pull request, there's was a change that didn't get pulled into for-next until two weeks ago and I wanted to give it some bake time. Summary: Rework and error handling fixes, primarily in the fscatch and fd transports" * tag 'for-linus-4.5-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: fs/9p: use fscache mutex rather than spinlock 9p: trans_fd, bail out if recv fcall if missing 9p: trans_fd, read rework to use p9_parse_header net/9p: Add device name details on error
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git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client由 Linus Torvalds 提交于
Pull Ceph updates from Sage Weil: "The two main changes are aio support in CephFS, and a series that fixes several issues in the authentication key timeout/renewal code. On top of that are a variety of cleanups and minor bug fixes" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: libceph: remove outdated comment libceph: kill off ceph_x_ticket_handler::validity libceph: invalidate AUTH in addition to a service ticket libceph: fix authorizer invalidation, take 2 libceph: clear messenger auth_retry flag if we fault libceph: fix ceph_msg_revoke() libceph: use list_for_each_entry_safe ceph: use i_size_{read,write} to get/set i_size ceph: re-send AIO write request when getting -EOLDSNAP error ceph: Asynchronous IO support ceph: Avoid to propagate the invalid page point ceph: fix double page_unlock() in page_mkwrite() rbd: delete an unnecessary check before rbd_dev_destroy() libceph: use list_next_entry instead of list_entry_next ceph: ceph_frag_contains_value can be boolean ceph: remove unused functions in ceph_frag.h
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git://git.samba.org/sfrench/cifs-2.6由 Linus Torvalds 提交于
Pull SMB3 fixes from Steve French: "A collection of CIFS/SMB3 fixes. It includes a couple bug fixes, a few for improved debugging of cifs.ko and some improvements to the way cifs does key generation. I do have some additional bug fixes I expect in the next week or two (to address a problem found by xfstest, and some fixes for SMB3.11 dialect, and a couple patches that just came in yesterday that I am reviewing)" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: cifs_dbg() outputs an uninitialized buffer in cifs_readdir() cifs: fix race between call_async() and reconnect() Prepare for encryption support (first part). Add decryption and encryption key generation. Thanks to Metze for helping with this. cifs: Allow using O_DIRECT with cache=loose cifs: Make echo interval tunable cifs: Check uniqueid for SMB2+ and return -ESTALE if necessary Print IP address of unresponsive server cifs: Ratelimit kernel log messages
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由 Josh Boyer 提交于
Like the Yoga 900 models the Lenovo Yoga 700 does not have a hw rfkill switch, and trying to read the hw rfkill switch through the ideapad module causes it to always reported blocking breaking wifi. This commit adds the Lenovo Yoga 700 to the no_hw_rfkill dmi list, fixing the wifi breakage. BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1295272 Tested-by: <dinyar.rabady+spam@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: NJosh Boyer <jwboyer@fedoraproject.org> Signed-off-by: NDarren Hart <dvhart@linux.intel.com>
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