- 07 Jul, 2018 12 commits
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Srinivas Kandagatla authored
This patch adds suppor to Qualcomm SLIMBus Non-Generic Device (NGD) controller driver. This is light-weight SLIMBus controller driver responsible for communicating with slave HW directly over the bus using messaging interface, and communicating with master component residing on ADSP for bandwidth and data-channel management Based on intial work from Karthikeyan Ramasubramanian <kramasub@codeaurora.org> and Sagar Dharia <sdharia@codeaurora.org> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Tested-by:
Craig Tatlor <ctatlor97@gmail.com> Reviewed-by:
Vinod Koul <vkoul@kernel.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Srinivas Kandagatla authored
This patch adds bindings for Qualcomm SLIMBus NGD controller. SLIMBus NGD controller is a light-weight driver responsible for communicating with SLIMBus slaves directly over the bus using messaging interface and communicating with master component residing on ADSP for bandwidth and data-channel management Signed-off-by:
Rob Herring <robh@kernel.org> Tested-by:
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Srinivas Kandagatla authored
This patch adds slim_alloc_txn_tid() and slim_free_txn_tid() api to allow controllers like ngd to allocate tids for user specific commands. This also cleans up the existing code to use single place for tid allocations and free. This patch also make the tid allocation cyclic one, its very useful to track the transactions back during debug. Signed-off-by:
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Srinivas Kandagatla authored
Rearrange struct slim_eaddr so that the structure is packed correctly to be able to send in SLIMBus messages. Signed-off-by:
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Srinivas Kandagatla authored
On SLIMBus controllers like Qcom NGD(non ported device), controller can request logical address once the remote side is powered, having a helper function like this to explicitly enumerate the bus is helpful. Also codec drivers which are taking to interface device would need such a helper too. Signed-off-by:
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Srinivas Kandagatla authored
QCOM SLIMBus controller is already under a 'if SLIMBUS' in Kconfig, having depends on SLIMBUS is totally redundant. Just remove it. Signed-off-by:
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Srinivas Kandagatla authored
slim_val_inf can contain random value from stack, make sure the completion is initialized to NULL while filling the msg. Signed-off-by:
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Srinivas Kandagatla authored
There seems to be a multiple calls to pm_runtime_mark_last_busy(), which looks like a typo. Fix this by properly adding pm_runtime_put_autosuspend to put controller in auto suspend state. Signed-off-by:
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Srinivas Kandagatla authored
There seems to be a typo while filling msg for slim_write, wbuf is set to NULL instead of rbuf. Signed-off-by:
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Zhouyang Jia authored
When ioremap_nocache fails, the lack of error-handling code may cause unexpected results. This patch adds error-handling code after calling ioremap_nocache. Signed-off-by:
Zhouyang Jia <jiazhouyang09@gmail.com> Acked-by:
Samuel Iglesias Gonsalvez <siglesias@igalia.com> Signed-off-by:
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Greg Kroah-Hartman authored
Merge tag 'fsi-updates-2018-06-12' of https://git.kernel.org/pub/scm/linux/kernel/git/benh/linux-fsi into char-misc-next Ben writes: FSI updates and sbefifo driver
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Alan Tull authored
Minor fixes including: * fix some typos * correct use of a/an * rephrase explanation of .state ops function * s/re-use/reuse/ (use only one spelling of 'reuse' in these docs) * s/cpu/CPU/ Signed-off-by:
Alan Tull <atull@kernel.org> Acked-by:
Randy Dunlap <rdunlap@infradead.org> Signed-off-by:
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- 06 Jul, 2018 3 commits
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Johan Hovold authored
Remove the vendor-prefix reject file which was accidentally added when merging the gnss sirfstar binding. The wi2wi prefix had already been added by commit a593bff8 ("dt-bindings: define vendor prefix for Wi2Wi, Inc."). Fixes: 176193b7 ("dt-bindings: gnss: add sirfstar binding") Reported-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Johan Hovold <johan@kernel.org> Signed-off-by:
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Johan Hovold authored
Make sure to enable the clock before registering regions and exporting partitions to user space at which point we must be prepared for I/O. Fixes: ee895ccd ("misc: sram: fix enabled clock leak on error path") Signed-off-by:
Vladimir Zapolskiy <vladimir_zapolskiy@mentor.com> Signed-off-by:
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Johan Hovold authored
Make sure to disable clocks and deregister any exported partitions before returning on late probe errors. Note that since commit ee895ccd ("misc: sram: fix enabled clock leak on error path"), partitions are deliberately exported before enabling the clock so we stick to that logic here. A follow up patch will address this. Fixes: 2ae2e288 ("misc: sram: add Atmel securam support") Cc: stable <stable@vger.kernel.org> # 4.9 Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by:
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- 03 Jul, 2018 25 commits
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Alexander Usyskin authored
The ME FW version is constantly used by detection and update tools. To improve the reliability and simplify these tools provide a sysfs interface to access version of the platform ME firmware in the following format: <platform>:<major>.<minor>.<milestone>.<build>. There can be up to three such blocks for different FW components. Signed-off-by:
Alexander Usyskin <alexander.usyskin@intel.com> Signed-off-by:
Tomas Winkler <tomas.winkler@intel.com> Signed-off-by:
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Alexander Usyskin authored
Add optional timeout to internal bus recv function to enable break out of internal flows in case of no answer from FW. Signed-off-by:
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Alexander Usyskin authored
MEI_IAMTHIF_STALL_TIMER is unused now and can be safely removed. Signed-off-by:
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Michael Kelley authored
The Hyper-V feature and hint flags in hyperv-tlfs.h are all defined with the string "X64" in the name. Some of these flags are indeed x86/x64 specific, but others are not. For the ones that are used in architecture independent Hyper-V driver code, or will be used in the upcoming support for Hyper-V for ARM64, this patch removes the "X64" from the name. This patch changes the flags that are currently known to be used on multiple architectures. Hyper-V for ARM64 is still a work-in-progress and the Top Level Functional Spec (TLFS) has not been separated into x86/x64 and ARM64 areas. So additional flags may need to be updated later. This patch only changes symbol names. There are no functional changes. Signed-off-by:
Michael Kelley <mikelley@microsoft.com> Signed-off-by:
K. Y. Srinivasan <kys@microsoft.com> Signed-off-by:
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Vitaly Kuznetsov authored
Commit ea81fdf0 ("Tools: hv: vss: Skip freezing filesystems backed by loop") added skip for filesystems backed by loop device. However, it seems the detection of such cases is incomplete. It was found that with 'devicemapper' storage driver docker creates the following chain: NAME MAJ:MIN loop0 7:0 ..docker-8:4-8473394-pool 253:0 ..docker-8:4-8473394-eac... 253:1 so when we're looking at the mounted device we see major '253' and not '7'. Solve the issue by walking /sys/dev/block/*/slaves chain and checking if there's a loop device somewhere. Other than that, don't skip mountpoints silently when stat() fails. In case e.g. SELinux is failing stat we don't want to skip freezing everything without letting user know about the failure. Fixes: ea81fdf0 ("Tools: hv: vss: Skip freezing filesystems backed by loop") Signed-off-by:
Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by:
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Olaf Hering authored
Python3 changed the way how 'print' works. Adjust the code to a syntax that is understood by python2 and python3. Signed-off-by:
Olaf Hering <olaf@aepfle.de> Acked-by:
Dexuan Cui <decui@microsoft.com> Signed-off-by:
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Michael Kelley authored
In architecture independent code for manipulating Hyper-V synthetic timers and synthetic interrupts, pass in an ordinal number identifying the timer or interrupt, rather than an actual MSR register address. Then in x86/x64 specific code, map the ordinal number to the appropriate MSR. This change facilitates the introduction of an ARM64 version of Hyper-V, which uses the same synthetic timers and interrupts, but a different mechanism for accessing them. Signed-off-by:
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Dexuan Cui authored
I didn't really hit a real bug, but just happened to spot the bug: we have decreased the counter at the beginning of vmbus_process_offer(), so we mustn't decrease it again. Fixes: 6f3d791f ("Drivers: hv: vmbus: Fix rescind handling issues") Signed-off-by:
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Michael Kelley authored
Add comments describing intricacies of Hyper-V ring buffer signaling code. This information is not in Hyper-V public documents, so include here to capture the knowledge for future coders. There are no code changes in this commit. Signed-off-by:
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Michael Kelley authored
Add standard interrupt handler annotations to hyperv_vector_handler(). This does not fix any observed bug, but avoids potential removal of the code by link time optimization and makes it consistent with hv_stimer0_vector_handler in the same source file. Suggested-by:
Thomas Gleixner <tglx@linutronix.de> Signed-off-by:
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Arjan van de Ven authored
Recent kernels support asynchronous probing; most hyperv drivers can be probed async easily so set the required flag for this. Signed-off-by:
Arjan van de Ven <arjan@linux.intel.com> Signed-off-by:
Stephen Hemminger <sthemmin@microsoft.com> Signed-off-by:
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Colin Ian King authored
Variable csrval_len is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'csrval_len' set but not used [-Wunused-but-set-variable] Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
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Colin Ian King authored
Pointer dev is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable ‘dev’ set but not used [-Wunused-but-set-variable] Signed-off-by:
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Colin Ian King authored
Pointer hpet is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'hpet' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Colin Ian King authored
Tasklet goldfish_interrupt_tasklet is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'goldfish_interrupt_tasklet' was not declared. Should it be static? Signed-off-by:
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Colin Ian King authored
The variable extra_config is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: warning: symbol 'extra_config' was not declared. Should it be static? Signed-off-by:
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Colin Ian King authored
Several helper functions are local to the source and do not need to be in global scope, so make them static. Cleans up sparse warnings: symbol 'rtsx_pm_power_saving' was not declared. Should it be static? symbol 'rtsx_set_l1off_sub_cfg_d0' was not declared. Should it be static? symbol 'rtsx_pm_full_on' was not declared. Should it be static? symbol 'rtsx_comm_set_ltr_latency' was not declared. Should it be static? symbol 'rtsx_pci_process_ocp' was not declared. Should it be static? symbol 'rtsx_pci_process_ocp_interrupt' was not declared. Should it be static? Signed-off-by:
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Colin Ian King authored
Variable is_local is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'is_local' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Colin Ian King authored
Variable type is being assigned but is never used hence it is redundant and can be removed. Cleans up clang warning: warning: variable 'type' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Colin Ian King authored
The pointers ch and rp are set but are never used hence they are redundant and can be removed. Cleans up clang warnings: warning: variable 'ch' set but not used [-Wunused-but-set-variable] warning: variable 'rp' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Colin Ian King authored
The variables val16, type, pci_dev and type are set but are never used hence they are redundant and can be removed. Cleans up clang warnings: warning: variable 'type' set but not used [-Wunused-but-set-variable] warning: variable 'val16' set but not used [-Wunused-but-set-variable] warning: variable 'pci_dev' set but not used [-Wunused-but-set-variable] warning: variable 'type' set but not used [-Wunused-but-set-variable] Signed-off-by:
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Nadav Amit authored
Philip Moltman is no longer a maintainer of the VMware balloon. Setting Nadav Amit as one instead. Reviewed-by:
Xavier Deguillard <xdeguillard@vmware.com> Signed-off-by:
Nadav Amit <namit@vmware.com> Signed-off-by:
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Nadav Amit authored
Removing the GPL wording and replace it with an SPDX tag. The immediate trigger for doing it now is the need to remove the list of maintainers from the source file, as the maintainer list changed. Reviewed-by:
Nadav Amit <nadav.amit@gmail.com> Signed-off-by:
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Nadav Amit authored
Since commit 33d268ed ("VMware balloon: Do not limit the amount of frees and allocations in non-sleep mode."), the allocations are not increased, and therefore balloon inflation rate limiting is in practice broken. While we can restore rate limiting, in practice we see that it can result in adverse effect, as the hypervisor throttles down the VM if it does not respond well enough, or alternatively causes it to perform very poorly as the host swaps out the VM memory. Throttling the VM down can even have a cascading effect, in which the VM reclaims memory even slower and consequentially throttled down even further. We therefore remove all the rate limiting mechanisms, including the slow allocation cycles, as they are likely to do more harm than good. Fixes: 33d268ed ("VMware balloon: Do not limit the amount of frees and allocations in non-sleep mode.") Reviewed-by:
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Nadav Amit authored
Currently, when all modules, including VMCI and VMware balloon are built into the kernel, the initialization of the balloon happens before the VMCI is probed. As a result, the balloon fails to initialize the VMCI doorbell, which it uses to get asynchronous requests for balloon size changes. The problem can be seen in the logs, in the form of the following message: "vmw_balloon: failed to initialize vmci doorbell" The driver would work correctly but slightly less efficiently, probing for requests periodically. This patch changes the balloon to be initialized using late_initcall() instead of module_init() to address this issue. It does not address a situation in which VMCI is built as a module and the balloon is built into the kernel. Fixes: 48e3d668 ("VMware balloon: Enable notification via VMCI") Cc: stable@vger.kernel.org Reviewed-by:
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