On i.MX8QM and i.MX8QXP, most devices are controlled
by System Control Unit, so add IMX_RPROC_SCU_API
method for these platform.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1633944015-789-3-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Move common structure imx_rproc_att, imx_rproc_method
and imx_rproc_dcfg to header file which can be shared with
imx_dsp_rproc driver.
Signed-off-by: Shengjiu Wang <shengjiu.wang@nxp.com>
Link: https://lore.kernel.org/r/1633944015-789-2-git-send-email-shengjiu.wang@nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
The MESON_AO_RPROC_SRAM_USABLE_BITS macro is used like this:
if (priv->sram_pa & ~MESON_AO_RPROC_SRAM_USABLE_BITS) {
dev_err(dev, "SRAM address contains unusable bits\n");
The problem is that "->sram_pa" is type phys_addr_t which is potentially
64 bits. That means the MESON_AO_RPROC_SRAM_USABLE_BITS macro needs to
be a 64 bit type as well to ensure that high 32 bits are cleared.
Fixes: 6cb58ea897 ("remoteproc: meson-mx-ao-arc: Add a driver for the AO ARC remote procesor")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20211004105257.GA27301@kili
Add out of reset sequence support for modem sub-system on SC7280 SoCs.
It requires access to an additional set of qaccept registers, external
power/clk control registers and halt vq6 register to put the modem back
into reset.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631886935-14691-6-git-send-email-sibis@codeaurora.org
Add support for booting the Modem DSP found on QTI SC7280 SoCs.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631886935-14691-3-git-send-email-sibis@codeaurora.org
The resources for MSM8996 are missing power domains, and adding them
makes the resources identical to the MSM8998 ones.
Rename msm8998_adsp_resource to msm8996_adsp_resource then use it
for both chips. Also add power domains to slpi_resource_init and use
it for both chips.
Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210926190555.278589-3-y.oudjana@protonmail.com
The SCP clock design is changed on mt8195 that doesn't need to control
SCP clock on kernel side.
Signed-off-by: Tinghan Shen <tinghan.shen@mediatek.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210924033935.2127-5-tinghan.shen@mediatek.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Amlogic Meson6, Meson8, Meson8b and Meson8m2 embed an ARC core in the
Always-On (AO) power-domain. This is typically used for waking up the
ARM cores after system suspend.
The configuration is spread across three different registers:
- AO_REMAP_REG0 which must be programmed to zero, it's actual purpose
is unknown. There is a second remap register which is not used in the
vendor kernel (which served as reference for this driver).
- AO_CPU_CNTL is used to start and stop the ARC core.
- AO_SECURE_REG0 in the SECBUS2 register area with unknown purpose.
To boot the ARC core we also need to enable it's gate clock and trigger
a reset.
The actual code for this ARC core can come from an ELF binary, for
example by building the Zephyr RTOS for an ARC EM4 core and then taking
"zephyr.elf" as firmware. This executable does not have any "rsc table"
so we are skipping rproc_elf_load_rsc_table (rproc_ops.parse_fw) and
rproc_elf_find_loaded_rsc_table (rproc_ops.find_loaded_rsc_table).
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Link: https://lore.kernel.org/r/20210921192557.1610709-3-martin.blumenstingl@googlemail.com
[Fixed header file order]
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
DRAM is not io memory, so changed to ioremap_wc. This is also
aligned with core io accessories. e.g. memcpy/memset and cpu direct
access.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peng Fan <peng.fan@nxp.com>
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20210910090621.3073540-7-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Usually the dash '-' is preferred in node name.
So far, not dts in upstream kernel, so we just update node name
in driver.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 5e4c124307 ("remoteproc: imx_rproc: support remote cores booted before Linux Kernel")
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-6-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
vdev regions are typically named vdev0buffer, vdev0ring0, vdev0ring1 and
etc. Change to strncmp to cover them all.
Fixes: 8f2d896164 ("remoteproc: imx_rproc: ignore mapping vdev regions")
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-5-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
is_iomem was introduced in the commit 40df0a91b2 ("remoteproc: add
is_iomem to da_to_va"), but the driver seemed missed to provide the io
type correctly.
This patch updates remoteproc driver to indicate the TCM on IMX are io
memories. Without the change, remoteproc kick will fail.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: Peng Fan <peng.fan@nxp.com>
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Fixes: 79806d32d5 ("remoteproc: imx_rproc: support i.MX8MN/P")
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-4-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Currently the is_iomem is a random value in the stack which may
be default to true even on those platforms that not use iomem to
store firmware.
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 40df0a91b2 ("remoteproc: add is_iomem to da_to_va")
Reviewed-and-tested-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-3-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
It seems luckliy work on i.MX platform, but it is wrong.
Need use memcpy_toio, not memcpy_fromio.
Fixes: 40df0a91b2 ("remoteproc: add is_iomem to da_to_va")
Tested-by: Dong Aisheng <aisheng.dong@nxp.com> (i.MX8MQ)
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20210910090621.3073540-2-peng.fan@oss.nxp.com
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The power domains exposed by the AOSS QMP driver control the load state
resources linked to modem, adsp, cdsp remoteprocs. These are used to
notify the Always on Subsystem (AOSS) that a particular co-processor is
up/down. AOSS uses this information to wait for the co-processors to
suspend before starting its sleep sequence.
These co-processors enter low-power modes independent to that of the
application processor and the load state resources linked to them are
expected to remain unaltered across system suspend/resume cycles. To
achieve this behavior lets stop using the power-domains exposed by the
AOSS QMP node and replace them with generic qmp_send interface instead.
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
[bjorn: Fixed up build error in q6v5_wcss_remove()]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1631800770-371-5-git-send-email-sibis@codeaurora.org
There doesn't seem to be any actual build time dependency on the
RPMSG_QCOM_SMD, besides that these drivers should be a module if the smd
rpmsg code is a module. Drop the compile test dependency so that these
drivers can be used without RPMSG_QCOM_SMD being enabled. This is useful
for the qcom SoCs that are using RPMSG_QCOM_GLINK_SMEM instead of
RPMSG_QCOM_SMD and thus don't want to enable the SMD driver when it is
never used.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210823235120.1203512-2-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This include isn't used anymore because the smd functions have been
moved to the qcom_common.c file.
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210823235120.1203512-1-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This chipset seems to work fine with the "generic" configuration.
Signed-off-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Link: https://lore.kernel.org/r/20210728215212.18217-2-konrad.dybcio@somainline.org
[bjorn: Use "-pas" suffix for remoteprocs using TrustZone]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When a remoteproc has crashed, rproc_report_crash() is called to
handle whatever recovery is desired. This can happen at almost any
time, often triggered by an interrupt, though it can also be
initiated by a write to debugfs file remoteproc/remoteproc*/crash.
When a crash is reported, the crash handler worker is scheduled to
run (rproc_crash_handler_work()). One thing that worker does is
call rproc_trigger_recovery(), which calls rproc_stop(). That calls
the ->stop method for any remoteproc subdevices before making the
remote processor go offline.
The Q6V5 modem remoteproc driver implements an SSR subdevice that
notifies registered drivers when the modem changes operational state
(prepare, started, stop/crash, unprepared). The IPA driver
registers to receive these notifications.
With that as context, I'll now describe the problem.
There was a situation in which buggy modem firmware led to a modem
crash very soon after system (AP) resume had begun. The crash caused
a remoteproc SSR crash notification to be sent to the IPA driver.
The problem was that, although system resume had begun, it had not
yet completed, and the IPA driver was still in a suspended state.
This scenario could happen to any driver that registers for these
SSR notifications, because they are delivered without knowledge of
the (suspend) state of registered recipient drivers.
This patch offers a simple fix for this, by having the crash
handling worker function run on the system freezable workqueue.
This workqueue does not operate if user space is frozen (for
suspend). As a result, the SSR subdevice only delivers its
crash notification when the system is fully operational (i.e.,
neither suspended nor in suspend/resume transition).
Tested-by: Siddharth Gupta <sidgup@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20210519234418.1196387-2-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The remoteproc driver is split between the responsibilities of getting
the SoC-internal ARM core up and running and the external RF (aka
"Iris") part configured.
In order to satisfy the regulator framework's need of a struct device *
to look up supplies this was implemented as two different drivers, using
of_platform_populate() in the remoteproc part to probe the iris part.
Unfortunately it's possible that the iris part probe defers on yet not
available regulators and an attempt to start the remoteproc will have to
be rejected, until this has been resolved. But there's no useful
mechanism of knowing when this would be.
Instead replace the of_platform_populate() and the iris probe with a
function that rolls its own struct device, with the relevant of_node
associated that is enough to acquire regulators and clocks specified in
the DT node and that may propagate the EPROBE_DEFER back to the wcnss
device's probe.
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reported-by: Anibal Limon <anibal.limon@linaro.org>
Reported-by: Loic Poulain <loic.poulain@linaro.org>
Tested-by: Anibal Limon <anibal.limon@linaro.org>
Link: https://lore.kernel.org/r/20210312002251.3273013-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This adds support for controlling the PRU and R5F clusters on the TI
AM64x, the remote processor in i.MX7ULP, i.MX8MN/P and i.MX8ULP NXP and
the audio, compute and modem remoteprocs in the Qualcomm SC8180x
platform.
It fixes improper ordering of cdev and device creation of the remoteproc
control interface and it fixes resource leaks in the error handling path
of rproc_add() and the Qualcomm modem and wifi remoteproc drivers.
Lastly it fixes a few build warnings and replace the dummy parameter
passed in the mailbox api of the stm32 driver to something not living on
the stack.
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Merge tag 'rproc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This adds support for controlling the PRU and R5F clusters on the TI
AM64x, the remote processor in i.MX7ULP, i.MX8MN/P and i.MX8ULP NXP
and the audio, compute and modem remoteprocs in the Qualcomm SC8180x
platform.
It fixes improper ordering of cdev and device creation of the
remoteproc control interface and it fixes resource leaks in the error
handling path of rproc_add() and the Qualcomm modem and wifi
remoteproc drivers.
Lastly it fixes a few build warnings and replace the dummy parameter
passed in the mailbox api of the stm32 driver to something not living
on the stack"
* tag 'rproc-v5.14' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (32 commits)
remoteproc: qcom: pas: Add SC8180X adsp, cdsp and mpss
dt-bindings: remoteproc: qcom: pas: Add SC8180X adsp, cdsp and mpss
remoteproc: imx_rproc: support i.MX8ULP
dt-bindings: remoteproc: imx_rproc: support i.MX8ULP
remoteproc: stm32: fix mbox_send_message call
remoteproc: core: Cleanup device in case of failure
remoteproc: core: Fix cdev remove and rproc del
remoteproc: core: Move validate before device add
remoteproc: core: Move cdev add before device add
remoteproc: pru: Add support for various PRU cores on K3 AM64x SoCs
dt-bindings: remoteproc: pru: Update bindings for K3 AM64x SoCs
remoteproc: qcom_wcnss: Use devm_qcom_smem_state_get()
remoteproc: qcom_q6v5: Use devm_qcom_smem_state_get() to fix missing put()
soc: qcom: smem_state: Add devm_qcom_smem_state_get()
dt-bindings: remoteproc: qcom: pas: Fix indentation warnings
remoteproc: imx-rproc: Fix IMX_REMOTEPROC configuration
remoteproc: imx_rproc: support i.MX8MN/P
remoteproc: imx_rproc: support i.MX7ULP
remoteproc: imx_rproc: make clk optional
remoteproc: imx_rproc: initial support for mutilple start/stop method
...
Here is the small set of driver core and debugfs updates for 5.14-rc1.
Included in here are:
- debugfs api cleanups (touched some drivers)
- devres updates
- tiny driver core updates and tweaks
Nothing major in here at all, and all have been in linux-next for a
while with no reported issues.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core changes from Greg KH:
"Here is the small set of driver core and debugfs updates for 5.14-rc1.
Included in here are:
- debugfs api cleanups (touched some drivers)
- devres updates
- tiny driver core updates and tweaks
Nothing major in here at all, and all have been in linux-next for a
while with no reported issues"
* tag 'driver-core-5.14-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (27 commits)
docs: ABI: testing: sysfs-firmware-memmap: add some memmap types.
devres: Enable trace events
devres: No need to call remove_nodes() when there none present
devres: Use list_for_each_safe_from() in remove_nodes()
devres: Make locking straight forward in release_nodes()
kernfs: move revalidate to be near lookup
drivers/base: Constify static attribute_group structs
firmware_loader: remove unneeded 'comma' macro
devcoredump: remove contact information
driver core: Drop helper devm_platform_ioremap_resource_wc()
component: Rename 'dev' to 'parent'
component: Drop 'dev' argument to component_match_realloc()
device property: Don't check for NULL twice in the loops
driver core: auxiliary bus: Fix typo in the docs
drivers/base/node.c: make CACHE_ATTR define static DEVICE_ATTR_RO
debugfs: remove return value of debugfs_create_ulong()
debugfs: remove return value of debugfs_create_bool()
scsi: snic: debugfs: remove local storage of debugfs files
b43: don't save dentries for debugfs
b43legacy: don't save dentries for debugfs
...
kernel.h is being used as a dump for all kinds of stuff for a long time.
Here is the attempt to start cleaning it up by splitting out panic and
oops helpers.
There are several purposes of doing this:
- dropping dependency in bug.h
- dropping a loop by moving out panic_notifier.h
- unload kernel.h from something which has its own domain
At the same time convert users tree-wide to use new headers, although for
the time being include new header back to kernel.h to avoid twisted
indirected includes for existing users.
[akpm@linux-foundation.org: thread_info.h needs limits.h]
[andriy.shevchenko@linux.intel.com: ia64 fix]
Link: https://lkml.kernel.org/r/20210520130557.55277-1-andriy.shevchenko@linux.intel.com
Link: https://lkml.kernel.org/r/20210511074137.33666-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Co-developed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Acked-by: Corey Minyard <cminyard@mvista.com>
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Acked-by: Wei Liu <wei.liu@kernel.org>
Acked-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Sebastian Reichel <sre@kernel.org>
Acked-by: Luis Chamberlain <mcgrof@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Acked-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Helge Deller <deller@gmx.de> # parisc
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The Qualcomm SC8180X has the typical ADSP, CDSP and MPSS remote
processors operated using the PAS interface, add support for these.
Attempts to configuring mss.lvl is failing, so a new adsp_data is
provided that skips this resource, for now.
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20210608174944.2045215-2-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
i.MX8ULP is a new SoC with Ultra low power support, it has a Cortex-M33
core and two Cortex-A35 cores. We need to add new configuration because
it could not reuse the previous i.MX7/8 configuration.
i.MX8ULP M33 core is kicked by ROM, it is not under control of A35 core.
So need to mark the method is IMX_RPROC_NONE.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210622060148.18411-3-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
mbox_send_message is called by passing a local dummy message or
a function parameter. As the message is queued, it is dereferenced.
This works because the message field is not used by the stm32 ipcc
driver, but it is not clean.
Fix by passing a constant string in all cases.
The associated comments are removed because rproc should not have to
deal with the behavior of the mailbox frame.
Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20210420091922.29429-1-arnaud.pouliquen@foss.st.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When a failure occurs in rproc_add() it returns an error, but does
not cleanup after itself. This change adds the failure path in such
cases.
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1623723671-5517-5-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The rproc_char_device_remove() call currently unmaps the cdev
region instead of simply deleting the cdev that was added as a
part of the rproc_char_device_add() call. This change fixes that
behaviour, and also fixes the order in which device_del() and
cdev_del() need to be called.
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1623723671-5517-4-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
We can validate whether the remoteproc is correctly setup before
making the cdev_add and device_add calls. This saves us the
trouble of cleaning up later on.
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1623723671-5517-3-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When cdev_add is called after device_add has been called there is no
way for the userspace to know about the addition of a cdev as cdev_add
itself doesn't trigger a uevent notification, or for the kernel to
know about the change to devt. This results in two problems:
- mknod is never called for the cdev and hence no cdev appears on
devtmpfs.
- sysfs links to the new cdev are not established.
The cdev needs to be added and devt assigned before device_add() is
called in order for the relevant sysfs and devtmpfs entries to be
created and the uevent to be properly populated.
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1623723671-5517-2-git-send-email-sidgup@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The K3 AM64x family of SoCs have a ICSSG IP that is similar to the
version on AM65x SR2.0 SoCs with some minor differences. The AM64x
SoCs contain two instances of this newer ICSSG IP. Each ICSSG processor
subsystem contains 2 primary PRU cores, 2 auxiliary PRU cores called
RTUs, and 2 new auxiliary cores called Transmit PRUs (Tx_PRUs).
Enhance the existing PRU remoteproc driver to support all these PRU,
RTU and Tx_PRU cores by using specific compatibles. The cores have the
same memory copying limitations as on AM65x, so reuses the custom memcpy
function within the driver's ELF loader implementation. The initial
names for the firmware images for each PRU core are retrieved from
DT nodes, and can be adjusted through sysfs if required.
Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210623173243.7862-3-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Use the new managed devm_qcom_smem_state_get() variant instead of
calling qcom_smem_state_put() explicitly in remove() to simplify the
code a bit.
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210618111556.53416-3-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
qcom_q6v5 is requesting a smem state with qcom_smem_state_get() but
qcom_smem_state_put() is not called anywhere. Use the new devm_()
variant to fix this without making the code more complicated.
Fixes: 051fb70fd4 ("remoteproc: qcom: Driver for the self-authenticating Hexagon v5")
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Link: https://lore.kernel.org/r/20210618111556.53416-2-stephan@gerhold.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When CONFIG_IMX_REMOTEPROC is y and CONFIG_HAVE_ARM_SMCCC
is not set, compiling errors are encountered as follows:
drivers/remoteproc/imx_rproc.o: in function `imx_rproc_stop':
imx_rproc.c:(.text+0x140): undefined reference to `__arm_smccc_smc'
drivers/remoteproc/imx_rproc.o: in function `imx_rproc_detect_mode':
imx_rproc.c:(.text+0x272): undefined reference to `__arm_smccc_smc'
drivers/remoteproc/imx_rproc.o: in function `imx_rproc_start':
imx_rproc.c:(.text+0x5e0): undefined reference to `__arm_smccc_smc'
__arm_smccc_smc is defined when HAVE_ARM_SMCCC is y, so
add dependency on HAVE_ARM_SMCCC in IMX_REMOTEPROC configuration.
Fixes: 79806d32d5 ("remoteproc: imx_rproc: support i.MX8MN/P")
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/20210610031530.26326-1-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Add i.MX8MN/P remote processor(Cortex-M7) support, we are using ARM
SMCCC to start/stop M core, not using regmap interface.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1620274123-1461-9-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
i.MX7ULP A7 core runs under control of M4 core, M4 core starts by ROM
and powers most services used by A7 core, so A7 core has no power to
start and stop M4 core. And the M4 core's state is default RPROC_DETACHED
and remoteproc framework not able to stop the M4 core.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1620274123-1461-8-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
To i.MX7ULP, M4 is the master to control everything, no need to provide
clk from Linux side. So make clk optional when method is IMX_RPROC_NONE.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1620274123-1461-7-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Add three methods IMX_RPROC_NONE(no need start/stop), IMX_RPROC_MMIO
(start/stop through mmio) and IMX_RPROC_SMC(start/stop through ARM SMCCC).
The current SoCs supported are all using IMX_RPROC_MMIO.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1620274123-1461-6-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Parse fsl,auto-boot to indicate whether need remoteproc framework
auto boot or not.
When remote processor is booted before Linux Kernel up, do not parse
fsl,auto-boot, so only need to parse the property when rproc state is
RPROC_DETACHED.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1620274123-1461-5-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
A phys_addr_t may be wider than an int or pointer:
drivers/remoteproc/stm32_rproc.c: In function 'stm32_rproc_da_to_pa':
drivers/remoteproc/stm32_rproc.c:583:30: error: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'phys_addr_t' {aka 'long long unsigned int'} [-Werror=format=]
583 | dev_dbg(dev, "da %llx to pa %#x\n", da, *pa);
Print it by reference using the special %pap format string.
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Fixes: 8a471396d2 ("remoteproc: stm32: Move resource table setup to rproc_ops")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210421140053.3727528-1-arnd@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The K3 AM64x SoC family has a revised R5F sub-system and contains a
subset of the R5F clusters present on J721E SoCs. The K3 AM64x SoCs
only have two dual-core Arm R5F clusters/subsystems with 2 R5F cores
each present within the MAIN voltage domain (MAIN_R5FSS0 & MAIN_R5FSS1).
The revised IP has the following distinct features:
1. The R5FSS IP supports a new "Single-CPU" mode instead of the LockStep
mode on existing SoCs (AM65x, J721E or J7200). This mode is similar
to LockStep-mode on J7200 SoCs in terms of TCM usage without the
fault-tolerant safety feature provided by the LockStep mode.
The Core1 TCMs are combined with the Core0 TCMs effectively doubling
the amount of TCMs available in Single-CPU mode. The LockStep-mode
on previous AM65x and J721E SoCs could only use the Core0 TCMs. These
combined TCMs appear contiguous at the respective Core0 TCM addresses.
The code though is executed only on a single CPU (on Core0), and as
such, requires the halt signal to be programmed only for Core0, while
the resets need to be managed for both the cores.
2. TCMs are auto-initialized during module power-up, and the behavior
is programmable through a MMR bit. This feature is the same as on
the recent J7200 SoCs.
Extend the support to these clusters in the K3 R5F remoteproc driver
using AM64x specific compatibles. New TI-SCI flags and a unique cluster
mode are also needed for the cluster mode detection on these SoCs. The
reset assert and deassert sequence of both the cores in Single-CPU mode
is agnostic of the order, so the same LockStep reset and release sequences
are re-used.
The integration of these clusters is very much similar to existing SoCs
otherwise.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210327143117.1840-3-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fix all the kernel-doc warnings in various remoteproc core files.
Some of them just needed a formatting cleanup change, while others
needed the Return statement to be added, or documenting the missed
structure elements.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210519180304.23563-3-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Add a kernel-doc comment for the is_iomem function argument in
rproc_da_to_va(). This fixes a warning generated when building
the remoteproc_core with W=1,
warning: Function parameter or member 'is_iomem' not described in 'rproc_da_to_va'
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210519180304.23563-2-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
With commit 312c004d36 ("[PATCH] driver core: replace "hotplug" by
"uevent"") already in the tree over a decade, update the name of
FW_ACTION defines to follow semantics, and reflect what the defines are
really meant for, i.e. whether or not generate user space event.
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20210425020024.28057-1-shawn.guo@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This adds support to the remoteproc core for detaching Linux from a
running remoteproc, e.g. to reboot Linux while leaving the remoteproc
running, and it enable this support in the stm32 remoteproc driver.
It also introduces a property for memory carveouts to track if they are
iomem or system ram, to enable proper handling of the differences.
The imx_rproc received a number of fixes and improvements, in particular
support for attaching to already running remote processors and i.MX8MQ
and i.MX8MM support.
The Qualcomm wcss driver gained support for starting and stopping the
wireless subsystem on QCS404, when not using the TrustZone-based
validator/loader.
Finally it brings a few fixes to the TI PRU and to the firmware loader
for the Qualcomm modem subsystem drivers.
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Merge tag 'rproc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc
Pull remoteproc updates from Bjorn Andersson:
"This adds support to the remoteproc core for detaching Linux from a
running remoteproc, e.g. to reboot Linux while leaving the remoteproc
running, and it enable this support in the stm32 remoteproc driver.
It also introduces a property for memory carveouts to track if they
are iomem or system ram, to enable proper handling of the differences.
The imx_rproc received a number of fixes and improvements, in
particular support for attaching to already running remote processors
and i.MX8MQ and i.MX8MM support.
The Qualcomm wcss driver gained support for starting and stopping the
wireless subsystem on QCS404, when not using the TrustZone-based
validator/loader.
Finally it brings a few fixes to the TI PRU and to the firmware loader
for the Qualcomm modem subsystem drivers"
* tag 'rproc-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc: (53 commits)
remoteproc: stm32: add capability to detach
dt-bindings: remoteproc: stm32-rproc: add new mailbox channel for detach
remoteproc: imx_rproc: support remote cores booted before Linux Kernel
remoteproc: imx_rproc: move memory parsing to rproc_ops
remoteproc: imx_rproc: enlarge IMX7D_RPROC_MEM_MAX
remoteproc: imx_rproc: add missing of_node_put
remoteproc: imx_rproc: fix build error without CONFIG_MAILBOX
remoteproc: qcom: wcss: Remove unnecessary PTR_ERR()
remoteproc: qcom: wcss: Fix wrong pointer passed to PTR_ERR()
remoteproc: qcom: pas: Add modem support for SDX55
dt-bindings: remoteproc: qcom: pas: Add binding for SDX55
remoteproc: qcom: wcss: Fix return value check in q6v5_wcss_init_mmio()
remoteproc: pru: Fix and cleanup firmware interrupt mapping logic
remoteproc: pru: Fix wrong success return value for fw events
remoteproc: pru: Fixup interrupt-parent logic for fw events
remoteproc: qcom: wcnss: Allow specifying firmware-name
remoteproc: qcom: wcss: explicitly request exclusive reset control
remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404
dt-bindings: remoteproc: qcom: Add Q6V5 Modem PIL binding for QCS404
remoteproc: qcom: wcss: populate hardcoded param using driver data
...
A mechanism similar to the shutdown mailbox signal is implemented to
detach a remote processor.
Upon detachment, a signal is sent to the remote firmware, allowing it
to perform specific actions such as stopping rpmsg communication.
The Cortex-M hold boot is also disabled to allow the remote processor
to restart in case of crash.
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@foss.st.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Tested-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210331073347.8293-3-arnaud.pouliquen@foss.st.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
- When remote cores are kicked before Linux Kernel, we are not able
to get resource table from the firmware elf file, so we need to add
rsc_table to hold the resource table published by remote cores and
imx_rproc_get_loaded_rsc_table is to get the resource table.
- Per remoteproc framework, add attach hook for processor in a detached
state.
- Add imx_rproc_detect_mode to detect remote cores' working mode to
set the state which is required by remoteproc framework.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1617846289-13496-5-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
8 is not enough when we need more, such as resource table for remote cores
that booted before Linux Kernel, so enlarge IMX7D_RPROC_MEM_MAX to 32.
And also rename it to IMX_RPROC_MEM_MAX which make more sense.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1617846289-13496-3-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
After of_parse_phandle, we need of_node_put to decrease the refcount
of the device_node.
Reported-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1617846289-13496-2-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Remove unnecessary PTR_ERR(), it has been assigned to ret before,
so return ret directly.
Signed-off-by: Junlin Yang <yangjunlin@yulong.com>
Link: https://lore.kernel.org/r/20210408143322.1647-1-angkery@163.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
PTR_ERR should access the value just tested by IS_ERR, otherwise
the wrong error code will be returned.
This commit fix it by return 'ret' directly.
Reviewed-by: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: 0af65b9b91 ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210326024741.841267-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Fixes: 0af65b9b91 ("remoteproc: qcom: wcss: Add non pas wcss Q6 support for QCS404")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210319094100.4185044-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The PRU firmware interrupt mappings are configured and unconfigured in
.start() and .stop() callbacks respectively using the variables 'evt_count'
and a 'mapped_irq' pointer. These variables are modified only during these
callbacks but are not re-initialized/reset properly during unwind or
failure paths. These stale values caused a kernel crash while stopping a
PRU remoteproc running a different firmware with no events on a subsequent
run after a previous run that was running a firmware with events.
Fix this crash by ensuring that the evt_count is 0 and the mapped_irq
pointer is set to NULL in pru_dispose_irq_mapping(). Also, reset these
variables properly during any failures in the .start() callback. While
at this, the pru_dispose_irq_mapping() callsites are all made to look
the same, moving any conditional logic to inside the function.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: c75c9fdac6 ("remoteproc: pru: Add support for PRU specific interrupt configuration")
Reported-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210407155641.5501-4-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The irq_create_fwspec_mapping() returns a proper virq value on success
and 0 upon any failure. The pru_handle_intrmap() treats this as an error
and disposes all firmware event mappings correctly, but is returning
this incorrect value as is, letting the pru_rproc_start() interpret it
as a success and boot the PRU.
Fix this by returning an error value back upon any such failure. While
at this, revise the error trace to print some meaningful info about the
failed event.
Fixes: c75c9fdac6 ("remoteproc: pru: Add support for PRU specific interrupt configuration")
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210407155641.5501-3-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The PRU firmware interrupt mapping logic in pru_handle_intrmap() uses
of_irq_find_parent() with PRU device node to get a handle to the PRUSS
Interrupt Controller at present. This logic however requires that the
PRU nodes always define a interrupt-parent property. This property is
neither a required/defined property as per the PRU remoteproc binding,
nor is relevant from a DT node point of view without any associated
interrupts. The current logic finds a wrong interrupt controller and
fails to perform proper mapping without any interrupt-parent property
in the PRU nodes.
Fix this logic to always find and use the sibling interrupt controller.
Also, while at this, fix the acquired interrupt controller device node
reference properly.
Fixes: c75c9fdac6 ("remoteproc: pru: Add support for PRU specific interrupt configuration")
Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210407155641.5501-2-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Introduce a firmware-name property, in order to be able to support
device/platform specific firmware for the wireless connectivity
subsystem; in line with other Qualcomm remoteproc drivers.
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20210312002441.3273183-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Q6 based WiFi fw loading is supported across
different targets, ex: IPQ8074/QCS404. In order to
support different fw names/pas id etc, populate
hardcoded param using driver data.
Signed-off-by: Govind Singh <govinds@codeaurora.org>
Signed-off-by: Gokul Sriram Palanisamy <gokulsri@codeaurora.org>
Link: https://lore.kernel.org/r/1611859695-11824-2-git-send-email-gokulsri@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Refactor function rproc_cdev_release() to take into account the
current state of the remote processor when choosing the state to
transition to.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210312162453.1234145-18-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This patch introduces the capability to detach a remote processor
that has been attached to by the remoteproc core. For that to happen
a rproc::ops::detach() operation needs to be available.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-17-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Allow a remote processor that was started by another entity to be
switched off by the remoteproc core. For that to happen a
rproc::ops::stop() operation needs to be available.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-16-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
This patch takes into account scenarios where a remote processor
has been attached to when receiving a "start" command from sysfs.
As with the case with the running state, the command can't be
carried out if the remote processor is already in operation.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-15-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The panic handler operation of registered remote processors
should also be called when remote processors have been
attached to.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-14-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
When a remote processor that was attached to is stopped, special care
must be taken to make sure the shutdown process is similar to what
it would be had it been started by the remoteproc core.
This patch takes care of that by making a copy of the resource
table currently used by the remote processor. From that point on
the copy is used, as if the remote processor had been started by
the remoteproc core.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-13-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
If it is possible to detach the remote processor, keep an untouched
copy of the resource table. That way we can start from the same
resource table without having to worry about original values or what
elements the startup code has changed when re-attaching to the remote
processor.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-12-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Introduce function rproc_detach() to enable the remoteproc
core to release the resources associated with a remote processor
without stopping its operation.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-11-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Introduce function __rproc_detach() to perform the same kind of
operation as rproc_stop(), but instead of switching off the
remote processor using rproc->ops->stop(), it uses
rproc->ops->detach(). That way it is possible for the core
to release the resources associated with a remote processor while
the latter is kept operating.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-10-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Some actions such as memory resources reallocation are needed when
trying to reattach a co-processor. Use the prepare() operation for
these actions.
Co-developed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Arnaud POULIQUEN <arnaud.pouliquen@foss.st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-8-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Move the setting of the resource table installed by an external
entity to rproc_ops::get_loaded_rsc_table(). This is to support
scenarios where a remote processor has been attached to but is
detached at a later stage. To re-attach the remote processor,
the address of the resource table needs to be available
at a later time than the platform driver's probe() function.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-7-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Add a new get_loaded_rsc_table() operation in order to support
scenarios where the remoteproc core has booted a remote processor
and detaches from it. When re-attaching to the remote processor,
the core needs to know where the resource table has been placed
in memory.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-6-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
There is a need to know when a remote processor has been attached
to rather than booted by the remoteproc core. In order to avoid
manipulating two variables, i.e rproc::autonomous and
rproc::state, get rid of the former and simply use the newly
introduced RPROC_ATTACHED state.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-5-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Add a new RPROC_ATTACHED state to take into account scenarios
where the remoteproc core needs to attach to a remote processor
that is booted by another entity.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-4-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Rename function rproc_actuate() to rproc_attach(). That way it is
easy to understand that it does the opposite of rproc_detach().
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-3-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Whether started at probe() time or thereafter from the command
line, a remote processor needs to be shut down before the final
cleanup phases can happen. Otherwise the system may be left in
an unpredictable state where the remote processor is expecting
the remoteproc core to be providing services when in fact it
no longer exist.
Invariably calling rproc_shutdown() is fine since it will return
immediately if the remote processor has already been switched
off.
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Link: https://lore.kernel.org/r/20210312162453.1234145-2-mathieu.poirier@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Analog to the issue in the common mdt_loader code the MSS ELF loader
does not validate that p_filesz bytes will fit in the memory region and
that the loaded segments are not truncated. Fix this in the same way
as proposed for the mdt_loader.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 135b9e8d1c ("remoteproc: qcom_q6v5_mss: Validate modem blob firmware size before load")
Link: https://lore.kernel.org/r/20210312232002.3466791-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Failing to read the "firmware-name" DT property without informing the
developer is annoying, add some helpful debug prints.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210312002605.3273255-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The K3 PRUs are 32-bit processors and in general have some limitations
in using the standard ARMv8 memcpy function for loading firmware segments,
so the driver already uses a custom memcpy implementation. This added
logic however is limited to only IRAMs at the moment, but the loading
into Data RAMs is not completely ok either and does generate a kernel
crash for unaligned accesses.
Fix these crashes by removing the existing IRAM logic limitation and
extending the custom memcpy usage to Data RAMs as well for all K3 SoCs.
Fixes: 1d39f4d199 ("remoteproc: pru: Add support for various PRU cores on K3 AM65x SoCs")
Signed-off-by: Suman Anna <s-anna@ti.com>
Link: https://lore.kernel.org/r/20210315205859.19590-1-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
In case of error, the function devm_ioremap() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should
be replaced with NULL test.
Fixes: ecadcc4749 ("remoteproc: imx_rproc: use devm_ioremap")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210312080420.277151-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Use virtio/mailbox to build connection between Remote Proccessors
and Linux. Add work queue to handle incoming messages.
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirer@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1615029865-23312-11-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
vdev regions are vdev0vring0, vdev0vring1, vdevbuffer and similar.
They are handled by remoteproc common code, no need to map in imx
rproc driver.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1615029865-23312-10-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The hook is used to parse memory-regions and load resource table
from the address the remote processor published.
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1615029865-23312-8-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
We might need to map an region multiple times, becaue the region might
be shared between remote processors, such i.MX8QM with dual M4 cores.
So use devm_ioremap, not devm_ioremap_resource.
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Richard Zhu <hongxing.zhu@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/1615029865-23312-7-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
It is using devm_ioremap, so not devm_ioremap_resource. Correct
the error message and print out sa/size.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1615029865-23312-6-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Introduce an extra parameter is_iomem to da_to_va, then the caller
could take the memory as normal memory or io mapped memory.
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Link: https://lore.kernel.org/r/1615029865-23312-5-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
There are four different callback functions that are used for the
rproc_handle_resource_t callback that all have different second
parameter types.
rproc_handle_vdev -> struct fw_rsc_vdev
rproc_handle_trace -> struct fw_rsc_trace
rproc_handle_devmem -> struct fw_rsc_devmem
rproc_handle_carveout -> struct fw_rsc_carveout
These callbacks are cast to rproc_handle_resource_t so that there is no
error about incompatible pointer types. Unfortunately, this is a Clang's
Control-Flow Integrity checking violation, which verifies that the
callback function's types match the prototypes exactly before jumping.
[ 7.275750] Kernel panic - not syncing: CFI failure (target: rproc_handle_vdev+0x0/0x4)
[ 7.283763] CPU: 2 PID: 1 Comm: init Tainted: G C O 5.4.70-03301-g527af2c96672 #17
[ 7.292463] Hardware name: NXP i.MX8MPlus EVK board (DT)
[ 7.297779] Call trace:
[ 7.300232] dump_backtrace.cfi_jt+0x0/0x4
[ 7.304337] show_stack+0x18/0x24
[ 7.307660] dump_stack+0xb8/0x114
[ 7.311069] panic+0x164/0x3d4
[ 7.314130] __ubsan_handle_cfi_check_fail_abort+0x0/0x14
[ 7.319533] perf_proc_update_handler+0x0/0xcc
[ 7.323983] __cfi_check+0x63278/0x6a290
[ 7.327913] rproc_boot+0x3f8/0x738
[ 7.331404] rproc_add+0x68/0x110
[ 7.334738] imx_rproc_probe+0x5e4/0x708 [imx_rproc]
[ 7.339711] platform_drv_probe+0xac/0xf0
[ 7.343726] really_probe+0x260/0x65c
[ 7.347393] driver_probe_device+0x64/0x100
[ 7.351580] device_driver_attach+0x6c/0xac
[ 7.355766] __driver_attach+0xdc/0x184
[ 7.359609] bus_for_each_dev+0x98/0x104
[ 7.363537] driver_attach+0x24/0x30
[ 7.367117] bus_add_driver+0x100/0x1e0
[ 7.370958] driver_register+0x78/0x114
[ 7.374800] __platform_driver_register+0x44/0x50
[ 7.379514] init_module+0x20/0xfe8 [imx_rproc]
[ 7.384049] do_one_initcall+0x190/0x348
[ 7.387979] do_init_module+0x5c/0x210
[ 7.391731] load_module+0x2fbc/0x3590
[ 7.395485] __arm64_sys_finit_module+0xb8/0xec
[ 7.400025] el0_svc_common+0xb4/0x19c
[ 7.403777] el0_svc_handler+0x74/0x98
[ 7.407531] el0_svc+0x8/0xc
[ 7.410419] SMP: stopping secondary CPUs
[ 7.414648] Kernel Offset: disabled
[ 7.418142] CPU features: 0x00010002,2000200c
[ 7.422501] Memory Limit: none
To fix this, change the second parameter of all functions to void * and
use a local variable with the correct type so that everything works
properly. With this, we can remove casting to rproc_handle_resource_t
for these functions.
Signed-off-by: Jindong Yue <jindong.yue@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Sami Tolvanen <samitolvanen@google.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210224055825.7417-1-jindong.yue@nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fix the following coccicheck warning:
./drivers/remoteproc/pru_rproc.c:247:0-23: WARNING:
pru_rproc_debug_ss_fops should be defined with DEFINE_DEBUGFS_ATTRIBUTE
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reported-by: Abaci Robot <abaci@linux.alibaba.com>
Signed-off-by: Yang Li <yang.lee@linux.alibaba.com>
Link: https://lore.kernel.org/r/1614154829-42461-1-git-send-email-yang.lee@linux.alibaba.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
PRU port of GNU Binutils lacks support for separate address spaces.
PRU IRAM addresses are marked with artificial offset to differentiate
them from DRAM addresses. Hence remoteproc must mask IRAM addresses
coming from GNU ELF in order to get the true hardware address.
PRU firmware used for testing was the example in:
https://github.com/dinuxbg/pru-gcc-examples/tree/master/blinking-led/pru
Signed-off-by: Dimitar Dimitrov <dimitar@dinux.eu>
Link: https://lore.kernel.org/r/20201230105005.30492-1-dimitar@dinux.eu
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
On 32-bit machines with 64-bit resource_size_t, the driver causes
a link failure because of the 64-bit division:
arm-linux-gnueabi-ld: drivers/remoteproc/qcom_pil_info.o: in function `qcom_pil_info_store':
qcom_pil_info.c:(.text+0x1ec): undefined reference to `__aeabi_uldivmod'
Add a cast to an u32 to avoid this. If the resource exceeds 4GB,
there are bigger problems.
Fixes: 549b67da66 ("remoteproc: qcom: Introduce helper to store pil info in IMEM")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210103135628.3702427-1-arnd@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
rproc_alloc_firmware() (called by rproc_alloc()) can allocate
rproc->firmware using kstrdup_const() and therefore should be freed
using kfree_const(); however, rproc_set_firmware() frees it using the
simple kfree(). This causes a kernel oops if a constant string is passed
to rproc_alloc() and rproc_set_firmware() is subsequently called.
Fix the above issue by using kfree_const() to free rproc->firmware in
rproc_set_firmware().
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Daniele Alessandrelli <daniele.alessandrelli@intel.com>
Link: https://lore.kernel.org/r/20210118165904.719999-1-daniele.alessandrelli@linux.intel.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
L1TCM is a high performance memory region in MT8192 SCP.
Reads L1TCM memory region from DTS to determine if the machine supports.
Loads L1TCM memory region to SCP sys if the firmware provides.
Starts from MT8192 SCP, the firmware contains physical addresses for
each memory region, for instance:
Program Headers:
Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align
LOAD 0xXXXXXX 0xXXXXXXXX 0x10500000 0xXXXXX 0xXXXXX XXX 0xXXXX
LOAD 0xXXXXXX 0xXXXXXXXX 0x10700000 0xXXXXX 0xXXXXX XXX 0xXXXX
LOAD 0xXXXXXX 0xXXXXXXXX 0x50000000 0xXXXXX 0xXXXXX XXX 0xXXXX
Kernel driver can use the "PhysAddr" (i.e. da in the da_to_va callbacks)
to know the ELF segment belongs to which region.
To backward compatible to MT8183 SCP, separates the da_to_va callbacks
for new and legacy version.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210127083136.3745652-5-tzungbi@google.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
The register MT8192_CORE0_MEM_ATT_PREDEF contains attributes for each
memory region. It defines whether a memory region can be managed by MPU
or not.
In the past, due to the default settings in the register, MT8192 SCP
works luckily. After enabling L1TCM, SCP starts to access memory region
that is not included in the default settings. As a result, SCP hangs.
Enables MPU for all memory regions in MT8192 SCP.
Note that the register is read only once when SCP resets. Thus, it must
be set from kernel side.
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Tzung-Bi Shih <tzungbi@google.com>
Link: https://lore.kernel.org/r/20210127083136.3745652-3-tzungbi@google.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
