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2019-06-12soc: qcom: Add AOSS QMP driverBjorn Andersson3-0/+493
The Always On Subsystem (AOSS) Qualcomm Messaging Protocol (QMP) driver is used to communicate with the AOSS for certain side-channel requests, that are not available through the RPMh interface. The communication is a very simple synchronous mechanism of messages being written in message RAM and a doorbell in the AOSS is rung. As the AOSS has processed the message length is cleared and an interrupt is fired by the AOSS as acknowledgment. The driver exposes the QDSS clock as a clock and the low-power state associated with the remoteprocs in the system as a set of power-domains. Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-12qcom: apr: Make apr callbacks in non-atomic contextSrinivas Kandagatla1-5/+69
APR communication with DSP is not atomic in nature. Its request-response type. Trying to pretend that these are atomic and invoking apr client callbacks directly under atomic/irq context has endless issues with soundcard. It makes more sense to convert these to nonatomic calls. This also coverts all the dais to be nonatomic. All the callbacks are now invoked as part of rx work queue. Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 409Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license rev 2 and only rev 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 2 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190112.583753585@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 284Thomas Gleixner9-81/+9
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 and only version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 294 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141900.825281744@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license version 2 as published by the free software foundation this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 655 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070034.575739538@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-30soc: qcom: rpmpd: Add MSM8998 power-domainsSibi Sankar1-0/+36
Add the shared cx/mx and sensor sub-system's cx and mx power-domains found on MSM8998. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-30soc: qcom: rpmpd: Add QCS404 power-domainsBjorn Andersson1-1/+51
Add the shared cx/mx and the low-power-island's cx and mx power-domains found on QCS404. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [sibi: Fixup corner/vfc with vlfl/vfl] Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-30soc: qcom: rpmpd: Modify corner defining macrosBjorn Andersson1-21/+17
QCS404 uses individual resource type magic for each power-domain, so adjust the macros slightly to make them reusable for this. Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> [sibi: Extend rpmpd corner pair to a generic rpmpd pair] Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-30soc: qcom: rpmpd: Add support to set rpmpd state to maxSibi Sankar1-3/+7
rpmpd max state varies across SoCs and SoC families, add support in the driver to make it SoC/SoC family specific Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-30soc: qcom: rpmpd: fixup rpmpd set performance stateSibi Sankar1-1/+1
Remoteproc q6v5-mss calls set_performance_state with INT_MAX on rpmpd. This is currently ignored since it is greater than the max supported state. Fixup rpmpd state to max if the required state is greater than all the supported states. Fixes: 075d3db8d10d ("soc: qcom: rpmpd: Add support for get/set performance state") Reviewed-by: Marc Gonzalez <marc.w.gonzalez@free.fr> Reviewed-by: Vinod Koul <vkoul@kernel.org> Reviewed-by: Jeffrey Hugo <jhugo@codeaurora.org> Signed-off-by: Sibi Sankar <sibis@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-05-21treewide: Add SPDX license identifier - Makefile/KconfigThomas Gleixner1-0/+1
Add SPDX license identifiers to all Make/Kconfig files which: - Have no license information of any form These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-04-10drivers: soc: qcom: rpmh-rsc: Correct check for slot numberMaulik Shah1-1/+1
The return index value from bitmap_find_next_zero_area can be higher than available slot. So correct the check to return error in such case. Signed-off-by: Maulik Shah <mkshah@codeaurora.org> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> Reviewed-by: Lina Iyer <ilina@codeaurora.org> Signed-off-by: Andy Gross <agross@kernel.org>
2019-03-28soc: qcom: cmd-db: Fix an error code in cmd_db_dev_probe()Dan Carpenter1-2/+2
The memremap() function doesn't return error pointers, it returns NULL. This code is returning "ret = PTR_ERR(NULL);" which is success, but it should return -ENOMEM. Fixes: 312416d9171a ("drivers: qcom: add command DB driver") Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-03-28soc: qcom: qmi: Change txn wait to non-interruptibleChris Lew1-5/+2
Current QMI clients are not userspace facing, if their threads are signaled, they do not do any signal checking or propagate the ERESTARTSYS return code up. Remove the interruptible option so clients can finish their QMI transactions even if the thread is signaled. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Chris Lew <clew@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-03-28soc: qcom: rmtfs: Add support for mmap functionalityAnkit Jain1-0/+21
This change adds mmap functionality to rmtfs_mem driver. Userspace application can map the address and use this mapped address directly as buffer for read/write call to disk. and avoid the read/write call to the shared path to copy the buffer to userspace application. Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Ankit Jain <jankit@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-16soc: qcom: llcc-slice: Fix typosAndy Gross1-2/+2
This patch fixes typos in the llcc-slice driver. Fixes: 72d1cd033154 ("qcom: soc: llcc-slice: Clear the global drv_data pointer on error") Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-13qcom: soc: llcc-slice: Consolidate some codeJordan Crouse1-22/+20
Make the code a little bit clearer (and use less gotos) by consolidating some of the initialization. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-13qcom: soc: llcc-slice: Clear the global drv_data pointer on errorJordan Crouse2-17/+60
Currently the data structure for llc-slice is devm allocated and stored as a global but never cleared if the probe function fails. This is a problem because devm managed memory gets freed on probe failure the API functions could access the pointer after it has been freed. Initialize the drv_data pointer to an error and reset it to an error on probe failure or device destroy and add protection to the API functions to make sure the memory doesn't get accessed. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02soc: qcom: smd-rpm: Add sdm660 compatibleCraig Tatlor1-0/+1
Add the compatible for the RPM in SDM660, so that rpm resources can be made available. Signed-off-by: Craig Tatlor <ctatlor97@gmail.com> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02soc: qcom: gsbi: Fix error handling in gsbi_probe()Alexey Khoroshilov1-2/+5
If of_platform_populate() fails in gsbi_probe(), gsbi->hclk is left undisabled. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02soc: qcom: rpmh: Avoid accessing freed memory from batch APIStephen Boyd1-13/+21
Using the batch API from the interconnect driver sometimes leads to a KASAN error due to an access to freed memory. This is easier to trigger with threadirqs on the kernel commandline. BUG: KASAN: use-after-free in rpmh_tx_done+0x114/0x12c Read of size 1 at addr fffffff51414ad84 by task irq/110-apps_rs/57 CPU: 0 PID: 57 Comm: irq/110-apps_rs Tainted: G W 4.19.10 #72 Call trace: dump_backtrace+0x0/0x2f8 show_stack+0x20/0x2c __dump_stack+0x20/0x28 dump_stack+0xcc/0x10c print_address_description+0x74/0x240 kasan_report+0x250/0x26c __asan_report_load1_noabort+0x20/0x2c rpmh_tx_done+0x114/0x12c tcs_tx_done+0x450/0x768 irq_forced_thread_fn+0x58/0x9c irq_thread+0x120/0x1dc kthread+0x248/0x260 ret_from_fork+0x10/0x18 Allocated by task 385: kasan_kmalloc+0xac/0x148 __kmalloc+0x170/0x1e4 rpmh_write_batch+0x174/0x540 qcom_icc_set+0x8dc/0x9ac icc_set+0x288/0x2e8 a6xx_gmu_stop+0x320/0x3c0 a6xx_pm_suspend+0x108/0x124 adreno_suspend+0x50/0x60 pm_generic_runtime_suspend+0x60/0x78 __rpm_callback+0x214/0x32c rpm_callback+0x54/0x184 rpm_suspend+0x3f8/0xa90 pm_runtime_work+0xb4/0x178 process_one_work+0x544/0xbc0 worker_thread+0x514/0x7d0 kthread+0x248/0x260 ret_from_fork+0x10/0x18 Freed by task 385: __kasan_slab_free+0x12c/0x1e0 kasan_slab_free+0x10/0x1c kfree+0x134/0x588 rpmh_write_batch+0x49c/0x540 qcom_icc_set+0x8dc/0x9ac icc_set+0x288/0x2e8 a6xx_gmu_stop+0x320/0x3c0 a6xx_pm_suspend+0x108/0x124 adreno_suspend+0x50/0x60 cr50_spi spi5.0: SPI transfer timed out pm_generic_runtime_suspend+0x60/0x78 __rpm_callback+0x214/0x32c rpm_callback+0x54/0x184 rpm_suspend+0x3f8/0xa90 pm_runtime_work+0xb4/0x178 process_one_work+0x544/0xbc0 worker_thread+0x514/0x7d0 kthread+0x248/0x260 ret_from_fork+0x10/0x18 The buggy address belongs to the object at fffffff51414ac80 which belongs to the cache kmalloc-512 of size 512 The buggy address is located 260 bytes inside of 512-byte region [fffffff51414ac80, fffffff51414ae80) The buggy address belongs to the page: page:ffffffbfd4505200 count:1 mapcount:0 mapping:fffffff51e00c680 index:0x0 compound_mapcount: 0 flags: 0x4000000000008100(slab|head) raw: 4000000000008100 ffffffbfd4529008 ffffffbfd44f9208 fffffff51e00c680 raw: 0000000000000000 0000000000200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: fffffff51414ac80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fffffff51414ad00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb >fffffff51414ad80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb ^ fffffff51414ae00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fffffff51414ae80: fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc fc The batch API sets the same completion for each rpmh message that's sent and then loops through all the messages and waits for that single completion declared on the stack to be completed before returning from the function and freeing the message structures. Unfortunately, some messages may still be in process and 'stuck' in the TCS. At some later point, the tcs_tx_done() interrupt will run and try to process messages that have already been freed at the end of rpmh_write_batch(). This will in turn access the 'needs_free' member of the rpmh_request structure and cause KASAN to complain. Furthermore, if there's a message that's completed in rpmh_tx_done() and freed immediately after the complete() call is made we'll be racing with potentially freed memory when accessing the 'needs_free' member: CPU0 CPU1 ---- ---- rpmh_tx_done() complete(&compl) wait_for_completion(&compl) kfree(rpm_msg) if (rpm_msg->needs_free) <KASAN warning splat> Let's fix this by allocating a chunk of completions for each message and waiting for all of them to be completed before returning from the batch API. Alternatively, we could wait for the last message in the batch, but that may be a more complicated change because it looks like tcs_tx_done() just iterates through the indices of the queue and completes each message instead of tracking the last inserted message and completing that first. Fixes: c8790cb6da58 ("drivers: qcom: rpmh: add support for batch RPMH request") Cc: Lina Iyer <ilina@codeaurora.org> Cc: "Raju P.L.S.S.S.N" <rplsssn@codeaurora.org> Cc: Matthias Kaehlcke <mka@chromium.org> Cc: Evan Green <evgreen@chromium.org> Cc: stable@vger.kernel.org Reviewed-by: Lina Iyer <ilina@codeaurora.org> Reviewed-by: Evan Green <evgreen@chromium.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02drivers: qcom: rpmh: avoid sending sleep/wake sets immediatelyRaju P.L.S.S.S.N1-2/+1
Fix the redundant call being made to send the sleep and wake requests immediately to the controller. As per the patch [1], the sleep and wake request votes are cached in rpmh controller and sent during rpmh_flush(). These requests needs to be sent only during entry of deeper system low power modes or suspend. [1] https://patchwork.kernel.org/patch/10477533/ Reviewed-by: Lina Iyer <ilina@codeaurora.org> Reviewed-by: Evan Green <evgreen@chromium.org> Signed-off-by: Raju P.L.S.S.S.N <rplsssn@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02soc: qcom: rmtfs-mem: Make sysfs attributes world-readableEvan Green1-3/+3
In order to run an rmtfs daemon as an unprivileged user, that user would need access to the phys_addr and size sysfs attributes. Sharing these attributes with unprivileged users doesn't really leak anything sensitive, since if you have access to physical memory, the jig is up anyway. Make those attributes readable by all. Reviewed-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Evan Green <evgreen@chromium.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-02-02soc: qcom: rmtfs-mem: Add class to enable ueventsEvan Green1-5/+21
Currently the qcom_rmtfs_memN devices are entirely invisible to the udev world. Add a class to the rmtfs device so that uevents fire when the device is added. Reviewed-by: Brian Norris <briannorris@chromium.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Evan Green <evgreen@chromium.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: update config dependencies for QCOM_RPMPDRajendra Nayak1-1/+1
Since QCOM_RPMPD is bool and it depends on QCOM_SMD_RPM which is tristate, configurations such as arm64:allmodconfig result in CONFIG_QCOM_RPMPD=y CONFIG_QCOM_SMD_RPM=m This in turn results in drivers/soc/qcom/rpmpd.o: In function `rpmpd_send_corner': rpmpd.c:(.text+0x10c): undefined reference to `qcom_rpm_smd_write' drivers/soc/qcom/rpmpd.o: In function `rpmpd_power_on': rpmpd.c:(.text+0x3b4): undefined reference to `qcom_rpm_smd_write' drivers/soc/qcom/rpmpd.o: In function `rpmpd_power_off': rpmpd.c:(.text+0x520): undefined reference to `qcom_rpm_smd_write' make: *** [vmlinux] Error 1 Fix it by making QCOM_RPMPD depend on QCOM_SMD_RPM=y Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: rpmpd: Drop family A RPM dependencyBjorn Andersson2-7/+5
The MFD_QCOM_RPM is the RPM in family A, but the rpmpd driver only implements support for SMD based devices. Drop the dependency and remove includes of the family A headers. No functional change. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: rpmhpd: Mark mx as a parent for cxRajendra Nayak1-0/+11
Specify the active + sleep and active-only MX power domains as the parents of the corresponding CX power domains. This will ensure that performance state requests on CX automatically generate equivalent requests on MX power domains. This is used to enforce a requirement that exists for various hardware blocks on SDM845 that MX performance state >= CX performance state for a given operating frequency. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: rpmhpd: Add RPMh power domain driverRajendra Nayak3-0/+405
The RPMh power domain driver aggregates the corner votes from various consumers for the ARC resources and communicates it to RPMh. With RPMh we use 2 different numbering space for corners, one used by the clients to express their performance needs, and another used to communicate to RPMh hardware. The clients express their performance requirements using a sparse numbering space which are mapped to meaningful levels like RET, SVS, NOMINAL, TURBO etc which then get mapped to another number space between 0 and 15 which is communicated to RPMh. The sparse number space, also referred to as vlvl is mapped to the continuous number space of 0 to 15, also referred to as hlvl, using command DB. Some power domain clients could request a performance state only while the CPU is active, while some others could request for a certain performance state all the time regardless of the state of the CPU. We handle this by internally aggregating the votes from both type of clients and then send the aggregated votes to RPMh. There are also 3 different types of votes that are comunicated to RPMh for every resource. 1. ACTIVE_ONLY: This specifies the requirement for the resource when the CPU is active 2. SLEEP: This specifies the requirement for the resource when the CPU is going to sleep 3. WAKE_ONLY: This specifies the requirement for the resource when the CPU is coming out of sleep to active state We add data for all power domains on sdm845 SoC as part of the patch. The driver can be extended to support other SoCs which support RPMh Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: rpmpd: Add support for get/set performance stateRajendra Nayak1-0/+35
Add support for the .set_performace_state() and .opp_to_performance_state() callbacks in the rpmpd driver. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2019-01-23soc: qcom: rpmpd: Add a Power domain driver to model cornersRajendra Nayak3-0/+292
The Power domains for corners just pass the performance state set by the consumers to the RPM (Remote Power manager) which then takes care of setting the appropriate voltage on the corresponding rails to meet the performance needs. We add all power domain data needed on msm8996 here. This driver can easily be extended by adding data for other qualcomm SoCs as well. Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Rob Herring <robh@kernel.org> Reviewed-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-29soc: qcom: smd-rpm: Add QCS404 compatibleBjorn Andersson1-0/+1
This patch adds a compatible for the rpm on the Qualcomm QCS404 platform. Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org> Reviewed-by: Vinod Koul <vkoul@kernel.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-29soc: qcom: llcc-slice: Remove duplicated include from llcc-slice.cYueHaibing1-1/+0
Remove duplicated include. Signed-off-by: YueHaibing <yuehaibing@huawei.com> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: cmd-db: Stop memcpy()ing in cmd_db_read_aux_data()Stephen Boyd1-35/+8
Let's change the function signature to return the pointer to memory or an error pointer on failure, and take an argument that lets us return the size of the aux data read. This way we can remove the cmd_db_read_aux_data_len() API entirely and also get rid of the memcpy operation from cmd_db to the caller. Updating the only user of this code shows that making this change allows us to remove a function and put the lookup where the user is. Cc: Mahesh Sivasubramanian <msivasub@codeaurora.org> Cc: Lina Iyer <ilina@codeaurora.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Evan Green <evgreen@chromium.org> Cc: Jordan Crouse <jcrouse@codeaurora.org> Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: cmd-db: Remove memcpy()ing from cmd_db_get_header()Stephen Boyd1-34/+26
The cmd_db_get_header() function is a static local function that doesn't need to copy anything from one place to another. Instead, it can just point into the region by returning pointers to what we're looking for. If we do that, we should mark what we're returning as const so that code can't modify cmd-db without an obvious cast. Cc: Mahesh Sivasubramanian <msivasub@codeaurora.org> Cc: Lina Iyer <ilina@codeaurora.org> Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Evan Green <evgreen@chromium.org> Signed-off-by: Stephen Boyd <swboyd@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: Drop help text for QCOM_QMI_HELPERSNiklas Cassel1-5/+0
The help text is visible in menuconfig, however QCOM_QMI_HELPERS is a hidden kconfig, so it is not selectable in menuconfig. Remove the help text so that it is more clear that this is intentionally a hidden kconfig. Signed-off-by: Niklas Cassel <niklas.cassel@linaro.org> Reviewed-by: Alex Elder <elder@linaro.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: qmi_interface: Limit txn ids to U16_MAXArun Kumar Neelakantam1-1/+1
Txn IDs created up to INT_MAX cause overflow while storing the IDs in u16 type supported by QMI header. Limit the txn IDs max value to U16_MAX to avoid overflow. Signed-off-by: Arun Kumar Neelakantam <aneela@codeaurora.org> Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: llcc-slice: Add error checks for API functionsJordan Crouse1-1/+14
llcc_slice_getd can return a ERR_PTR code on failure. Add a IS_ERR_OR_NULL check to subsequent API calls that use struct llcc_slice_desc to guard against faults and to let the leaf drivers get away with safely using a ERR_PTR() encoded "pointer" in the aftermath of a llcc_slice_getd error. Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org> Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom/llcc: add MODULE_LICENSE tagArnd Bergmann1-1/+2
The lack of a MODULE_LICENSE tag prevents building the llcc driver as a loadable module: FATAL: modpost: GPL-incompatible module llcc-slice.ko uses GPL-only symbol 'ktime_get' This adds the appropriate license and description tags. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-11-14soc: qcom: Add irq clear handling during SE initAlok Chauhan1-12/+13
when the kernel inits a SE, its quite possible we have pending interrupts from bootloaders which did not handle/clear them. So do this in kernel at the SE init, to avoid some of it causing bad behavior, while at it also club all the register writes needed to clear the se irqs into a function to avoid repeating it over. Signed-off-by: Alok Chauhan <alokc@codeaurora.org> Reviewed-by: Douglas Anderson <dianders@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-10-30Merge tag 'armsoc-drivers' of ↵Linus Torvalds8-127/+158
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "The most noteworthy SoC driver changes this time include: - The TEE subsystem gains an in-kernel interface to access the TEE from device drivers. - The reset controller subsystem gains a driver for the Qualcomm Snapdragon 845 Power Domain Controller. - The Xilinx Zynq platform now has a firmware interface for its platform management unit. This contains a firmware "ioctl" interface that was a little controversial at first, but the version we merged solved that by not exposing arbitrary firmware calls to user space. - The Amlogic Meson platform gains a "canvas" driver that is used for video processing and shared between different high-level drivers. The rest is more of the usual, mostly related to SoC specific power management support and core drivers in drivers/soc: - Several Renesas SoCs (RZ/G1N, RZ/G2M, R-Car V3M, RZ/A2M) gain new features related to power and reset control. - The Mediatek mt8183 and mt6765 SoC platforms gain support for their respective power management chips. - A new driver for NXP i.MX8, which need a firmware interface for power management. - The SCPI firmware interface now contains support estimating power usage of performance states - The NVIDIA Tegra "pmc" driver gains a few new features, in particular a pinctrl interface for configuring the pads. - Lots of small changes for Qualcomm, in particular the "smem" device driver. - Some cleanups for the TI OMAP series related to their sysc controller. Additional cleanups and bugfixes in SoC specific drivers include the Meson, Keystone, NXP, AT91, Sunxi, Actions, and Tegra platforms" * tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (129 commits) firmware: tegra: bpmp: Implement suspend/resume support drivers: clk: Add ZynqMP clock driver dt-bindings: clock: Add bindings for ZynqMP clock driver firmware: xilinx: Add zynqmp IOCTL API for device control Documentation: xilinx: Add documentation for eemi APIs MAINTAINERS: imx: include drivers/firmware/imx path firmware: imx: add misc svc support firmware: imx: add SCU firmware driver support reset: Fix potential use-after-free in __of_reset_control_get() dt-bindings: arm: fsl: add scu binding doc soc: fsl: qbman: add interrupt coalesce changing APIs soc: fsl: bman_portals: defer probe after bman's probe soc: fsl: qbman: Use last response to determine valid bit soc: fsl: qbman: Add 64 bit DMA addressing requirement to QBMan soc: fsl: qbman: replace CPU 0 with any online CPU in hotplug handlers soc: fsl: qbman: Check if CPU is offline when initializing portals reset: qcom: PDC Global (Power Domain Controller) reset controller dt-bindings: reset: Add PDC Global binding for SDM845 SoCs reset: Grammar s/more then once/more than once/ bus: ti-sysc: Just use SET_NOIRQ_SYSTEM_SLEEP_PM_OPS ...
2018-10-26Merge tag 'devicetree-for-4.20' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull Devicetree updates from Rob Herring: "A bit bigger than normal as I've been busy this cycle. There's a few things with dependencies and a few things subsystem maintainers didn't pick up, so I'm taking them thru my tree. The fixes from Johan didn't get into linux-next, but they've been waiting for some time now and they are what's left of what subsystem maintainers didn't pick up. Summary: - Sync dtc with upstream version v1.4.7-14-gc86da84d30e4 - Work to get rid of direct accesses to struct device_node name and type pointers in preparation for removing them. New helpers for parsing DT cpu nodes and conversions to use the helpers. printk conversions to %pOFn for printing DT node names. Most went thru subystem trees, so this is the remainder. - Fixes to DT child node lookups to actually be restricted to child nodes instead of treewide. - Refactoring of dtb targets out of arch code. This makes the support more uniform and enables building all dtbs on c6x, microblaze, and powerpc. - Various DT binding updates for Renesas r8a7744 SoC - Vendor prefixes for Facebook, OLPC - Restructuring of some ARM binding docs moving some peripheral bindings out of board/SoC binding files - New "secure-chosen" binding for secure world settings on ARM - Dual licensing of 2 DT IRQ binding headers" * tag 'devicetree-for-4.20' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (78 commits) ARM: dt: relicense two DT binding IRQ headers power: supply: twl4030-charger: fix OF sibling-node lookup NFC: nfcmrvl_uart: fix OF child-node lookup net: stmmac: dwmac-sun8i: fix OF child-node lookup net: bcmgenet: fix OF child-node lookup drm/msm: fix OF child-node lookup drm/mediatek: fix OF sibling-node lookup of: Add missing exports of node name compare functions dt-bindings: Add OLPC vendor prefix dt-bindings: misc: bk4: Add device tree binding for Liebherr's BK4 SPI bus dt-bindings: thermal: samsung: Add SPDX license identifier dt-bindings: clock: samsung: Add SPDX license identifiers dt-bindings: timer: ostm: Add R7S9210 support dt-bindings: phy: rcar-gen2: Add r8a7744 support dt-bindings: can: rcar_can: Add r8a7744 support dt-bindings: timer: renesas, cmt: Document r8a7744 CMT support dt-bindings: watchdog: renesas-wdt: Document r8a7744 support dt-bindings: thermal: rcar: Add device tree support for r8a7744 Documentation: dt: Add binding for /secure-chosen/stdout-path dt-bindings: arm: zte: Move sysctrl bindings to their own doc ...
2018-10-24net/kconfig: Make QCOM_QMI_HELPERS available when COMPILE_TESTLinus Torvalds1-1/+1
The networking merge brought in the experimental support for the Qualcomm ath10k system NOC, which selects QCOM_QMI_HELPERS as a dependency. But the ATH10K_SNOC option (which selects QCOM_QMI_HELPERS) depends on ARCH_QCOM || COMPILE_TEST in order to get wider build testing than just the unusual QCOM architecture build, while the QCOM_QMI_HELPERS option doesn't have that COMPILE_TEST option and is limited to only ARCH_QCOM. As a result, a "make allmodconfig" complains WARNING: unmet direct dependencies detected for QCOM_QMI_HELPERS Depends on [n]: ARCH_QCOM && NET [=y] Selected by [m]: - ATH10K_SNOC [=m] && NETDEVICES [=y] && WLAN [=y] && WLAN_VENDOR_ATH [=y] && ATH10K [=m] && (ARCH_QCOM || COMPILE_TEST [=y]) Fix the config-time warning by making QCOM_QMI_HELPERS available when COMPILE_TEST, since the result seems to build fine. Cc: Bjorn Andersson <bjorn.andersson@linaro.org> Cc: Govind Singh <govinds@codeaurora.org> Cc: Kalle Valo <kvalo@codeaurora.org> Cc: David Miller <davem@davemloft.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-10-04soc: Convert to using %pOFn instead of device_node.nameRob Herring1-1/+1
In preparation to remove the node name pointer from struct device_node, convert printf users to use the %pOFn format specifier. Cc: Li Yang <leoyang.li@nxp.com> Cc: David Brown <david.brown@linaro.org> Cc: Jonathan Hunter <jonathanh@nvidia.com> Cc: Santosh Shilimkar <ssantosh@kernel.org> Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-soc@vger.kernel.org Acked-by: Thierry Reding <treding@nvidia.com> Acked-by: Heiko Stuebner <heiko@sntech.de> Acked-by: Qiang Zhao <qiang.zhao@nxp.com> Acked-by: Andy Gross <andy.gross@linaro.org> Signed-off-by: Rob Herring <robh@kernel.org>
2018-09-24soc: qcom: geni: geni_se_clk_freq_match() should always accept multiplesDouglas Anderson1-15/+22
The geni_se_clk_freq_match() has some strange semantics. Specifically it is defined with two modes: 1. It can find a clock that's an exact multiple of the requested rate 2. It can find a non-exact match but it can't handle multiples then ...but callers should always be able to handle a clock that is a multiple of the requested clock so mode #2 doesn't really make sense. Let's change the semantics so that the non-exact match can also accept multiples and then change the code to handle that. The only caller of this code is the unlanded SPI driver [1] which currently passes "exact = True", thus it should be safe to change the semantics in this way. ...and, in fact, the SPI driver should likely be modified to pass "exact = False" (with the new semantics) since that will allow it to work with SPI devices that request a clock rate that doesn't exactly match a rate we can make. [1] https://lkml.kernel.org/r/1535107336-2214-1-git-send-email-dkota@codeaurora.org Fixes: eddac5af0654 ("soc: qcom: Add GENI based QUP Wrapper driver") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-24soc: qcom: geni: Don't ignore clk_round_rate() errors in geni_se_clk_tbl_get()Douglas Anderson1-2/+2
The function clk_round_rate() is defined to return a "long", not an "unsigned long". That's because it might return a negative error code. Change the call in geni_se_clk_tbl_get() to check for errors. While we're at it, get rid of a useless init of "freq". NOTE: overall the idea that we should iterate over clk_round_rate() to try to reconstruct a table already present in the clock driver is questionable. Specifically: - This method relies on "clk_round_rate()" rounding up. - This method only works if the table is sorted and has no duplicates. ...this patch doesn't try to fix those problems, it just makes the error handling more correct. Fixes: eddac5af0654 ("soc: qcom: Add GENI based QUP Wrapper driver") Signed-off-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-14soc: qcom: smem: a few last cleanupsAlex Elder1-9/+6
This patch contains several small cleanups: - In qcom_smem_enumerate_partitions(), change the "local_host" argument to have 16 bit unsigned type - Also in qcom_smem_enumerate_partitions(), change the type of the "host0" and "host1" local variables to be u16 - Fix error messages reporting host ids to use the right format specifier - Shorten the error messages as well, to fit on one line - Add a compile-time check to ensure the local host value passed to qcom_smem_enumerate_partitions() is in range Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-14soc: qcom: smem: verify partition host ids matchAlex Elder1-21/+15
Add verification in qcom_smem_partition_header() that the host ids found in a partition's header structure match those in its partition table entry. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-14soc: qcom: smem: small change in global entry loopAlex Elder1-3/+4
Change the logic in the loop that finds that global host entry in the partition table not require the host0 and host1 local variables. The next patch will remove them. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-14soc: qcom: smem: verify partition offset_free_uncachedAlex Elder1-14/+7
Add verification in qcom_smem_partition_header() that the offset_free_uncached field in a partition's header structure does not exceed the partition's size. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
2018-09-14soc: qcom: smem: verify partition header sizeAlex Elder1-11/+8
Add verification in qcom_smem_partition_header() that the size in a partition's header structure matches the size in its partition table entry. Signed-off-by: Alex Elder <elder@linaro.org> Signed-off-by: Andy Gross <andy.gross@linaro.org>
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