Commit Graph

41 Commits

Author SHA1 Message Date
Linus Torvalds abfbb29297 remoteproc updates for v5.8
This introduces device managed versions of functions used to register
 remoteproc devices, add support for remoteproc driver specific resource
 control, enables remoteproc drivers to specify ELF class and machine for
 coredumps. It integrates pm_runtime in the core for keeping resources
 active while the remote is booted and holds a wake source while
 recoverying a remote processor after a firmware crash.
 
 It refactors the remoteproc device's allocation path to simplify the
 logic, fix a few cleanup bugs and to not clone const strings onto the
 heap. Debugfs code is simplifies using the DEFINE_SHOW_ATTRIBUTE and a
 zero-length array is replaced with flexible-array.
 
 A new remoteproc driver for the JZ47xx VPU is introduced, the Qualcomm
 SM8250 gains support for audio, compute and sensor remoteprocs and the
 Qualcomm SC7180 modem support is cleaned up and improved.
 
 The Qualcomm glink subsystem-restart driver is merged into the main
 glink driver, the Qualcomm sysmon driver is extended to properly notify
 remote processors about all other remote processors' state transitions.
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Merge tag 'rproc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This introduces device managed versions of functions used to register
  remoteproc devices, add support for remoteproc driver specific
  resource control, enables remoteproc drivers to specify ELF class and
  machine for coredumps. It integrates pm_runtime in the core for
  keeping resources active while the remote is booted and holds a wake
  source while recoverying a remote processor after a firmware crash.

  It refactors the remoteproc device's allocation path to simplify the
  logic, fix a few cleanup bugs and to not clone const strings onto the
  heap. Debugfs code is simplifies using the DEFINE_SHOW_ATTRIBUTE and a
  zero-length array is replaced with flexible-array.

  A new remoteproc driver for the JZ47xx VPU is introduced, the Qualcomm
  SM8250 gains support for audio, compute and sensor remoteprocs and the
  Qualcomm SC7180 modem support is cleaned up and improved.

  The Qualcomm glink subsystem-restart driver is merged into the main
  glink driver, the Qualcomm sysmon driver is extended to properly
  notify remote processors about all other remote processors' state
  transitions"

* tag 'rproc-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (43 commits)
  remoteproc: Fix an error code in devm_rproc_alloc()
  MAINTAINERS: Add myself as reviewer for Ingenic rproc driver
  remoteproc: ingenic: Added remoteproc driver
  remoteproc: Add support for runtime PM
  dt-bindings: Document JZ47xx VPU auxiliary processor
  remoteproc: wcss: Fix arguments passed to qcom_add_glink_subdev()
  remoteproc: Fix and restore the parenting hierarchy for vdev
  remoteproc: Fall back to using parent memory pool if no dedicated available
  remoteproc: Replace zero-length array with flexible-array
  remoteproc: wcss: add support for rpmsg communication
  remoteproc: core: Prevent system suspend during remoteproc recovery
  remoteproc: qcom_q6v5_mss: Remove unused q6v5_da_to_va function
  remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use
  remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space
  dt-bindings: remoteproc: qcom: Replace halt-nav with spare-regs
  remoteproc: qcom: pas: Add SM8250 PAS remoteprocs
  dt-bindings: remoteproc: qcom: pas: Add SM8250 remoteprocs
  remoteproc: qcom_q6v5_mss: Extract mba/mpss from memory-region
  dt-bindings: remoteproc: qcom: Use memory-region to reference memory
  remoteproc: qcom: pas: Add SC7180 Modem support
  ...
2020-06-08 13:01:08 -07:00
Sibi Sankar 9666174a4e remoteproc: qcom_q6v5_mss: Remove unused q6v5_da_to_va function
Remove unsed q6v5_da_to_va function as the mss driver uses a per segment
dump function.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415071619.6052-2-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-12 12:08:15 -07:00
Sibi Sankar be050a3429 remoteproc: qcom_q6v5_mss: map/unmap mpss segments before/after use
The application processor accessing the mpss region when the Q6 modem is
running will lead to an XPU violation. Fix this by un-mapping the mpss
segments post copy during mpss authentication and coredumps.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415071619.6052-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-12 12:08:09 -07:00
Sibi Sankar a9fdc79d48 remoteproc: qcom_q6v5_mss: Drop accesses to MPSS PERPH register space
7C retail devices using MSA based boot will result in a fuse combination
which will prevent accesses to MSS PERPH register space where the mpss
clocks and halt-nav reside. So drop all accesses to the MPSS PERPH
register space. Issuing HALT NAV request and turning on the mss clocks
as part of SSR will no longer be required since the modem firmware will
have the necessary fixes to ensure that there are no pending NAV DMA
transactions.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415145110.20624-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-12 12:04:35 -07:00
Sibi Sankar 6663ce6fac remoteproc: qcom_q6v5_mss: Extract mba/mpss from memory-region
In the absence of mba and mpss sub-child extract the mba/mpss regions
from the memory-region property.

Tested-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200421143228.8981-5-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-11 12:20:17 -07:00
Bjorn Andersson cd9fc8f1b3 remoteproc: qcom: Pass ssr_name to glink subdevice
Pass ssr_name to glink subdevice in preparation for tying glink_ssr to
the glink subdevice, rather than having its own "ssr subdevice".

Acked-by: Chris Lew <clew@codeaurora.org>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Acked-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/20200423003736.2027371-2-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-07 11:03:55 -07:00
Clement Leger 3898fc99d1 remoteproc: use rproc_coredump_set_elf_info in drivers
Modify drivers which are using remoteproc coredump functionality to use
rproc_coredump_set_elf_info in order to create correct elf coredump
format.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Clement Leger <cleger@kalray.eu>
Link: https://lore.kernel.org/r/20200410102433.2672-3-cleger@kalray.eu
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-19 22:53:37 -07:00
Alex Elder 5839681002 remoteproc: qcom_q6v5_mss: fix q6v5_probe() error paths
If an error occurs in q6v5_probe() after the proxy power domains
are attached, but before qcom_add_ipa_notify_subdev() is called,
qcom_remove_ipa_notify_subdev() is called in the error path, which
is a bug.  Fix this by having that call be reached through a
different label.

Additionally, if qcom_add_sysmon_subdev() returns an error, the
subdevs that had already been added will not be properly removed.
Fix this by having the added subdevs (including the IPA notify one)
be removed in this case.

Finally, arrange for the sysmon subdev to be removed before the rest
in the event rproc_add() returns an error.

Have cleanup activity done in q6v5_remove() be done in the reverse
order they are set up in q6v5_probe() (the same order they're done
in the q6v5_probe() error path).  Use a local variable for the
remoteproc pointer, which is used repeatedly.

Remove errant semicolons at the end of two function blocks.

Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200403175005.17130-4-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-16 15:53:15 -07:00
Alex Elder 13c060b50a remoteproc: qcom_q6v5_mss: fix a bug in q6v5_probe()
If looking up the DT "firmware-name" property fails in q6v6_probe(),
the function returns without freeing the remoteproc structure
that has been allocated.  Fix this by jumping to the free_rproc
label, which takes care of this.

Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200403175005.17130-3-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-16 15:53:15 -07:00
Linus Torvalds c657011431 remoteproc updates for v5.7
This introduces a range of improvements to the OMAP remoeteproc driver;
 among other things adding devicetree, suspend/resume and watchdog
 support, and adds support the remoteprocs in the DRA7xx SoC.
 
 It introduces support for 64-bit firmware, extends the ELF loader to
 support this and fixes for a number of race conditions in the recovery
 handling.
 
 It introduces a generic mechanism to allow remoteproc drivers to sync
 state with remote processors during a panic, and uses this to prepare
 Qualcomm remote processors for post mortem analysis.
 
 Finally it introduces fixes to cleanly recover from crashes in the modem
 firmware on production Qualcomm devices.
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Merge tag 'rproc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:

 - a range of improvements to the OMAP remoeteproc driver; among other
   things adding devicetree, suspend/resume and watchdog support, and
   adds support the remoteprocs in the DRA7xx SoC

 - support for 64-bit firmware, extends the ELF loader to support this
   and fixes for a number of race conditions in the recovery handling

 - a generic mechanism to allow remoteproc drivers to sync state with
   remote processors during a panic, and uses this to prepare Qualcomm
   remote processors for post mortem analysis

 - fixes to cleanly recover from crashes in the modem firmware on
   production Qualcomm devices

* tag 'rproc-v5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (37 commits)
  remoteproc/omap: Switch to SPDX license identifiers
  remoteproc/omap: Add watchdog functionality for remote processors
  remoteproc/omap: Report device exceptions and trigger recovery
  remoteproc/omap: Add support for runtime auto-suspend/resume
  remoteproc/omap: Add support for system suspend/resume
  remoteproc/omap: Request a timer(s) for remoteproc usage
  remoteproc/omap: Check for undefined mailbox messages
  remoteproc/omap: Remove the platform_data header
  remoteproc/omap: Add support for DRA7xx remote processors
  remoteproc/omap: Initialize and assign reserved memory node
  remoteproc/omap: Add the rproc ops .da_to_va() implementation
  remoteproc/omap: Add support to parse internal memories from DT
  remoteproc/omap: Add a sanity check for DSP boot address alignment
  remoteproc/omap: Add device tree support
  dt-bindings: remoteproc: Add OMAP remoteproc bindings
  remoteproc: qcom: Introduce panic handler for PAS and ADSP
  remoteproc: qcom: q6v5: Add common panic handler
  remoteproc: Introduce "panic" callback in ops
  remoteproc: Traverse rproc_list under RCU read lock
  remoteproc: Fix NULL pointer dereference in rproc_virtio_notify
  ...
2020-04-02 15:42:13 -07:00
Clement Leger 9ce3bf225e remoteproc: Use size_t type for len in da_to_va
With upcoming changes in elf loader for elf64 support, section size will
be a u64. When used with da_to_va, this will potentially lead to
overflow if using the current "int" type for len argument. Change
da_to_va prototype to use a size_t for len and fix all users of this
function.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Clement Leger <cleger@kalray.eu>
Link: https://lore.kernel.org/r/20200302093902.27849-2-cleger@kalray.eu
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:38 -07:00
Sibi Sankar d96f2571dc remoteproc: qcom_q6v5_mss: Reload the mba region on coredump
On secure devices after a wdog/fatal interrupt, the mba region has to be
refreshed in order to prevent the following errors during mba load.

Err Logs:
remoteproc remoteproc2: stopped remote processor 4080000.remoteproc
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
....
qcom-q6v5-mss 4080000.remoteproc: PBL returned unexpected status -284031232
qcom-q6v5-mss 4080000.remoteproc: MBA booted, loading mpss

Fixes: 7dd8ade24d ("remoteproc: qcom: q6v5-mss: Add custom dump function for modem")
Cc: stable@vger.kernel.org
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200304194729.27979-4-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:37 -07:00
Bjorn Andersson 715d852519 remoteproc: qcom_q6v5_mss: Validate each segment during loading
The code used to sync with the MBA after each segment loaded and this is
still what's done downstream. So reduce the delta towards downstream by
switching to a model where the content is iteratively validated.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200304194729.27979-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:37 -07:00
Bjorn Andersson 900fc60df2 remoteproc: qcom_q6v5_mss: Don't reassign mpss region on shutdown
Trying to reclaim mpss memory while the mba is not running causes the
system to crash on devices with security fuses blown, so leave it
assigned to the remote on shutdown and recover it on a subsequent boot.

Fixes: 6c5a9dc248 ("remoteproc: qcom: Make secure world call for mem ownership switch")
Cc: stable@vger.kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200304194729.27979-2-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:36 -07:00
Alex Elder d7f5f3c89c remoteproc: add IPA notification to q6v5 driver
Set up a subdev in the q6v5 modem remoteproc driver that generates
event notifications for the IPA driver to use for initialization and
recovery following a modem shutdown or crash.

A pair of new functions provides a way for the IPA driver to register
and deregister a notification callback function that will be called
whenever modem events (about to boot, running, about to shut down,
etc.) occur.  A void pointer value (provided by the IPA driver at
registration time) and an event type are supplied to the callback
function.

One event, MODEM_REMOVING, is signaled whenever the q6v5 driver is
about to remove the notification subdevice.  It requires the IPA
driver de-register its callback.

This sub-device is only used by the modem subsystem (MSS) driver,
so the code that adds the new subdev and allows registration and
deregistration of the notifier is found in "qcom_q6v6_mss.c".

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-08 22:07:09 -07:00
Sibi Sankar 600c39b343 remoteproc: qcom: q6v5-mss: Improve readability of reset_assert
Define AXI_GATING_VALID_OVERRIDE and fixup comments to improve readability
of Q6 modem reset sequence on SC7180 SoCs.

Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200123131236.1078-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-24 09:34:07 -08:00
Sibi Sankar 01bf3fec38 remoteproc: qcom: q6v5-mss: Use regmap_read_poll_timeout
Replace the loop for HALT_ACK detection with regmap_read_poll_timeout.

Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200123131236.1078-2-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-24 09:34:03 -08:00
Sibi Sankar 0c2caf75aa remoteproc: qcom: q6v5-mss: Rename boot status timeout
Rename the FSM timeout on SC7180 to BOOT_STATUS_TIMEOUT_US.

Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200117135130.3605-4-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-21 15:37:08 -08:00
Sibi Sankar 7e0f868879 remoteproc: qcom: q6v5-mss: Improve readability across clk handling
Define CLKEN and CLKOFF for improving readability of Q6SS clock
handling.

Reviewed-by: Evan Green <evgreen@chromium.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200117135130.3605-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-21 15:37:01 -08:00
Sibi Sankar 6439b5276b remoteproc: mss: q6v5-mss: Add modem support on SC7180
Add the out of reset sequence support for modem sub-system on SC7180
SoCs. It requires access to an additional halt nav register to put
the modem back into reset.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20191219054506.20565-3-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-12-20 10:47:12 -08:00
Sibi Sankar 6ba519aa13 remoteproc: q6v5-mss: Remove mem clk from the active pool
Currently the mem clk is voted upon from both the active and proxy pool on
MSM8998 SoCs where only a proxy vote should suffice. Fix this by removing
mem clk from the active pool.

Fixes: 1665cbd573 ("remoteproc: qcom_q6v5_mss: Add support for MSM8998")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20191218132217.28141-2-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-12-20 09:58:38 -08:00
Jeffrey Hugo 1665cbd573 remoteproc: qcom_q6v5_mss: Add support for MSM8998
MSM8998 sits between MSM8996 and SDM845 in terms of functionality needed to
boot the modem subsystem.  Booting mss allows for servicing the traditional
cellular usecases along with the wireless usecases such as wifi.

Signed-off-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-11-04 14:57:28 -08:00
Sibi Sankar f2583fde27 remoteproc: qcom: q6v5-mss: fixup q6v5_pds_enable error handling
dev_pm_domain_attach_by_name will return NULL if the requested
power-domain is not a part device node. This could result in
NULL pointer de-reference in q6v5_pds_enable. Fix this by
checking for IS_ERR_OR_NULL and forward the appropriate error
code.

Fixes: 4760a896be ("remoteproc: q6v5-mss: Vote for rpmh power domains")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-08-26 14:52:01 -07:00
Linus Torvalds fdcec00405 remoteproc updates for v5.3
This adds support for the STM32 remoteproc, additional i.MX platforms
 with Cortex M4 remoteprocs and Qualcomm's QCS404 Compute DSP. Initial
 support for vendor specific resource table entries and support for
 unprocessed Qualcomm firmware files.
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Merge tag 'rproc-v5.3' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This adds support for the STM32 remoteproc, additional i.MX platforms
  with Cortex M4 remoteprocs and Qualcomm's QCS404 Compute DSP.

  Also initial support for vendor specific resource table entries and
  support for unprocessed Qualcomm firmware files"

* tag 'rproc-v5.3' of git://github.com/andersson/remoteproc:
  remoteproc: stm32: fix building without ARM SMCC
  remoteproc: qcom: q6v5-mss: Fix build error without QCOM_MDT_LOADER
  remoteproc: copy parent dma_pfn_offset for vdev
  remoteproc: qcom: q6v5-mss: Support loading non-split images
  soc: qcom: mdt_loader: Support loading non-split images
  remoteproc: stm32: add an ST stm32_rproc driver
  dt-bindings: remoteproc: add bindings for stm32 remote processor driver
  dt-bindings: stm32: add bindings for ML-AHB interconnect
  remoteproc: Use struct_size() helper
  remoteproc: add vendor resources handling
  remoteproc: imx: Fix typo in "failed"
  remoteproc: imx: Broaden the Kconfig selection logic
  remoteproc,rpmsg: add missing MAINTAINERS file entries
  remoteproc: qcom: qdsp6-adsp: Add support for QCS404 CDSP
  dt-bindings: remoteproc: Rename and amend Hexagon v56 binding
2019-07-17 11:44:41 -07:00
Bjorn Andersson f04b913834 remoteproc: qcom: q6v5-mss: Support loading non-split images
In some software releases the firmware images are not split up with each
loadable segment in it's own file. Check the size of the loaded firmware
to see if it still contains each segment to be loaded, before falling
back to the split-out segments.

Reviewed-by: Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-07-01 19:02:32 -07:00
Thomas Gleixner 1802d0beec treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 174
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>
2019-05-30 11:26:41 -07:00
Bjorn Andersson deb9bb83e7 remoteproc: q6v5-mss: Active powerdomain for SDM845
The SDM845 MSS needs the load_state powerdomain voted for during the
duration of the MSS being powered on, to let the AOSS know that it may
not perform certain power save measures. So vote for this.

Tested-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-30 16:56:15 -08:00
Rajendra Nayak 4760a896be remoteproc: q6v5-mss: Vote for rpmh power domains
With rpmh ARC resources being modelled as power domains with performance
state, we need to proxy vote on these for SDM845.
Add support to vote on multiple of them, now that genpd supports
associating mutliple power domains to a device.

Tested-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
[bjorn: Drop device link, improve error handling, name things "proxy"]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-30 16:55:57 -08:00
Sibi Sankar a5a4e02d08 remoteproc: qcom: Add support for parsing fw dt bindings
Add support for parsing "firmware-name" dt bindings which specifies
the relative paths of mba/modem/pas image as strings. Fallback to
the default paths for mba/modem/pas image on -EINVAL.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-29 22:01:07 -08:00
Ramon Fried 4107102d60 remoteproc: qcom_q6v5: don't auto boot remote processor
Sometimes that rmtfs userspace module is not brought
up fast enough and the modem crashes.
disabling automated boot in the driver and triggering
the boot from user-space sovles the problem.

Acked-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Ramon Fried <ramon.fried@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-29 22:00:25 -08:00
Sibi Sankar 027045a6e2 remoteproc: qcom: Add shutdown-ack irq
Add shutdown-ack irq handling required for sysmon shutdown for
Q6V5 MSS on SDM845/MSM8996 and for WCSS Q6V5 on QCS404 SoC.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
[bjorn: Revert back to qcom_add_sysmon_subdev returning a sysmon object]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-21 21:14:26 -08:00
Sibi Sankar 47b874748d remoteproc: qcom: q6v5-mss: Add missing regulator for MSM8996
Add proxy vote for pll supply on MSM8996 SoC.

Fixes: 9f058fa2ef ("remoteproc: qcom: Add support for mss remoteproc on msm8996")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-06 23:02:14 -08:00
Sibi Sankar 80ec419c34 remoteproc: qcom: q6v5-mss: Add missing clocks for MSM8996
Proxy vote for QDSS clock and remove vote on handover interrupt
to provide MSS PBL with access to STM hardware registers during
boot. Add "snoc_axi" and "mnoc_axi" to the active clock list.
Rename "gpll0_mss_clk" to "gpll0_mss" for consistency across SoCs.

Fixes: 9f058fa2ef ("remoteproc: qcom: Add support for mss remoteproc on msm8996")
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-01-06 23:02:14 -08:00
Sibi Sankar f18b7e914f remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump
Register the MDT segments, custom dumpfn and private data with the
remoteproc core dump functionality.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 12:54:03 -07:00
Sibi Sankar 7dd8ade24d remoteproc: qcom: q6v5-mss: Add custom dump function for modem
The per segment dump function is responsible for loading the mba
before device memory segments associated with coredump can be populated
and for cleaning up the resources post coredump.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 12:54:03 -07:00
Sibi Sankar 0304530ddd remoteproc: qcom: q6v5-mss: Refactor mba load/unload sequence
Refactor re-useable parts of mba load/unload sequence into mba_load and
mba_reclaim respectively. This is done in order to prevent code duplication
for modem coredump, which requires the mba to be loaded before dumping
the segments. The following changes in functionality are intended:

* Add software bypass to avoid high MX current in mpss error path.
* Remove the proxy votes of clk/regs only after the active/reset clks/regs.
* Reclaim MBA memory after mpss_load failure in mba_reclaim func.
* Set/Unset the dump_mba_loaded flag on mba_load/mba_reclaim respectively.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 12:54:02 -07:00
Brian Norris bbcda30271 remoteproc: qcom: q6v5-mss: add SCM probe dependency
The memory ownership transfer request is performed using SCM, ensure
that SCM is available before we probe the driver if memory protection is
needed by the subsystem.

Fixes: 6c5a9dc248 ("remoteproc: qcom: Make secure world call for mem ownership switch")
Cc: stable@vger.kernel.org
Signed-off-by: Brian Norris <briannorris@chromium.org>
[bjorn: Added condition for need_mem_protection, updated commit message]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-08 23:17:25 -07:00
Sibi Sankar 3bf62eb77c remoteproc: qcom: q6v5-pil: Assign the relocated address
Assign the relocated base of the modem image, as the offsets
from the virtual memory might not be based on the physical
address.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-07 23:50:18 -07:00
Sibi Sankar 29a5f9aaf9 remoteproc: qcom: q6v5-pil: Add PDC reset for modem on SDM845 SoCs
In the presence of a PDC block working with subsystem RSC, assert/deassert
PDC reset in modem start/stop path.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 11:46:04 -07:00
Sibi Sankar 9e483efd34 remoteproc: qcom: q6v5-pil: Explicitly get mss_restart line
Explicitly get mss_restart to facilitate adding PDC reset line
for modem on SDM845 SoCs

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 11:43:48 -07:00
Bjorn Andersson ef73c22fa0 remoteproc: qcom: Rename Hexagon v5 modem driver
The qcom_q6v5_pil implements support for the self-authenticating modem
subsystem. With the introduction of other q6v5 based non-TZ based
remoteproc driver the current name is cause for confusion, so rename it
to be more specific.

No functional change.

Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-26 10:11:37 -07:00