Commit Graph

95 Commits

Author SHA1 Message Date
Peng Fan 1cd6239426 remoteproc: imx-rproc: Fix IMX_REMOTEPROC configuration
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>
2021-06-10 11:29:48 -05:00
Wei Yongjun 889cb0d43d remoteproc: imx_rproc: fix build error without CONFIG_MAILBOX
Fix build error when CONFIG_MAILBOX is not set:

arm-linux-gnueabi-ld: drivers/remoteproc/imx_rproc.o: in function `imx_rproc_kick':
imx_rproc.c:(.text+0x328): undefined reference to `mbox_send_message'
arm-linux-gnueabi-ld: drivers/remoteproc/imx_rproc.o: in function `imx_rproc_probe':
imx_rproc.c:(.text+0x52c): undefined reference to `mbox_request_channel_byname'
arm-linux-gnueabi-ld: imx_rproc.c:(.text+0x548): undefined reference to `mbox_request_channel_byname'
arm-linux-gnueabi-ld: imx_rproc.c:(.text+0x76c): undefined reference to `mbox_free_channel'
arm-linux-gnueabi-ld: imx_rproc.c:(.text+0x774): undefined reference to `mbox_free_channel'
arm-linux-gnueabi-ld: imx_rproc.c:(.text+0x7c4): undefined reference to `mbox_free_channel'
arm-linux-gnueabi-ld: drivers/remoteproc/imx_rproc.o: in function `imx_rproc_remove':
imx_rproc.c:(.text+0x86c): undefined reference to `mbox_free_channel'
arm-linux-gnueabi-ld: imx_rproc.c:(.text+0x874): undefined reference to `mbox_free_channel'
make: *** [Makefile:1292: vmlinux] Error 1

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Fixes: 2df7062002 ("remoteproc: imx_proc: enable virtio/mailbox")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Link: https://lore.kernel.org/r/20210331122709.3935521-1-weiyongjun1@huawei.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-04-13 21:10:32 -05:00
Peng Fan 4ab8f9607a remoteproc: imx_rproc: support i.MX8MQ/M
Add i.MX8MQ dev/sys addr map and configuration data structure
i.MX8MM share i.MX8MQ settings.

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/1615029865-23312-9-git-send-email-peng.fan@oss.nxp.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-03-11 12:02:44 -06:00
Arnd Bergmann bfb44502b8 remoteproc: qcom: fix glink dependencies
Building the remoteproc drivers into the kernel while the qcom_glink
code is in a loadable module results in a link error:

ld.lld: error: undefined symbol: qcom_glink_ssr_notify
>>> referenced by vmlinux.o:(glink_subdev_unprepare)

Add a Kconfig dependency to avoid this.

Reviewed-by: Alex Elder <elder@linaro.org>
Fixes: 8527efc59d ("rpmsg: glink: Guard qcom_glink_ssr_notify() with correct config")
Fixes: 5d1f2e3c80 ("soc: qcom: glink_ssr: Internalize ssr_notifiers")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/r/20210204154010.1585457-1-arnd@kernel.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-02-09 09:01:50 -06:00
Shawn Guo 9e19f44d7f remoteproc: qcom: add more help text qcom options
With these more help text added, hopefully it's easier to understand the
distinctions of these qcom remoteproc drivers.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Link: https://lore.kernel.org/r/20201217030400.6235-1-shawn.guo@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2021-01-07 11:23:59 -06:00
Suman Anna d4ce2de7e4 remoteproc: pru: Add a PRU remoteproc driver
The Programmable Real-Time Unit Subsystem (PRUSS) consists of
dual 32-bit RISC cores (Programmable Real-Time Units, or PRUs)
for program execution. This patch adds a remoteproc platform
driver for managing the individual PRU RISC cores life cycle.

The PRUs do not have a unified address space (have an Instruction
RAM and a primary Data RAM at both 0x0). The PRU remoteproc driver
therefore uses a custom remoteproc core ELF loader ops. The added
.da_to_va ops is only used to provide translations for the PRU
Data RAMs. This remoteproc driver does not have support for error
recovery and system suspend/resume features. Different compatibles
are used to allow providing scalability for instance-specific device
data if needed. The driver uses a default firmware-name retrieved
from device-tree for each PRU core, and the firmwares are expected
to be present in the standard Linux firmware search paths. They can
also be adjusted by userspace if required through the sysfs interface
provided by the remoteproc core.

The PRU remoteproc driver uses a client-driven boot methodology: it
does _not_ support auto-boot so that the PRU load and boot is dictated
by the corresponding client drivers for achieving various usecases.
This allows flexibility for the client drivers or applications to set
a firmware name (if needed) based on their desired functionality and
boot the PRU. The sysfs bind and unbind attributes have also been
suppressed so that the PRU devices cannot be unbound and thereby
shutdown a PRU from underneath a PRU client driver.

The driver currently supports the AM335x, AM437x, AM57xx and 66AK2G
SoCs, and support for other TI SoCs will be added in subsequent
patches.

Co-developed-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Co-developed-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Signed-off-by: Grzegorz Jaszczyk <grzegorz.jaszczyk@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201208141002.17777-3-grzegorz.jaszczyk@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-12-10 10:55:55 -06:00
Colin Ian King d247d1855a remoteproc: fix spelling mistake "Peripherial" -> "Peripherial" in Kconfig
There is a spelling mistake in the Kconfig help text. Fix it.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20201204193411.1152006-1-colin.king@canonical.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-12-04 16:41:06 -06:00
Suman Anna 6dedbd1d54 remoteproc: k3-r5: Add a remoteproc driver for R5F subsystem
The TI K3 family of SoCs typically have one or more dual-core Arm Cortex
R5F processor clusters/subsystems (R5FSS). This R5F subsystem/cluster
can be configured at boot time to be either run in a LockStep mode or in
an Asymmetric Multi Processing (AMP) fashion in Split-mode. This subsystem
has 64 KB each Tightly-Coupled Memory (TCM) internal memories for each
core split between two banks - TCMA and TCMB (further interleaved into
two banks). The subsystem does not have an MMU, but has a Region Address
Translater (RAT) module that is accessible only from the R5Fs for providing
translations between 32-bit CPU addresses into larger system bus addresses.

Add a remoteproc driver to support this subsystem to be able to load and
boot the R5F cores primarily in LockStep mode. The code also includes the
base support for Split mode. Error Recovery and Power Management features
are not currently supported. Loading support includes the internal TCMs
and DDR. RAT support is left for a future patch, and as such the reserved
memory carveout regions are all expected to be using memory regions within
the first 2 GB.

The R5F remote processors do not have an MMU, and so require fixed memory
carveout regions matching the firmware image addresses. Support for this
is provided by mandating multiple memory regions to be attached to the
remoteproc device. The first memory region will be used to serve as the
DMA pool for all dynamic allocations like the vrings and vring buffers.
The remaining memory regions are mapped into the kernel at device probe
time, and are used to provide address translations for firmware image
segments without the need for any RSC_CARVEOUT entries. Any firmware
image using memory outside of the supplied reserved memory carveout
regions will be errored out.

The R5F processors on TI K3 SoCs require a specific sequence for booting
and shutting down the processors. This sequence is also dependent on the
mode (LockStep or Split) the R5F cluster is configured for. The R5F cores
have a Memory Protection Unit (MPU) that has a default configuration that
does not allow the cores to run out of DDR out of reset. This is resolved
by using the TCMs for boot-strapping code that applies the appropriate
executable permissions on desired DDR memory. The loading into the TCMs
requires that the resets be released first with the cores in halted state.
The Power Sleep Controller (PSC) module on K3 SoCs requires that the cores
be in WFI/WFE states with no active bus transactions before the cores can
be put back into reset. Support for this is provided by using the newly
introduced .prepare() and .unprepare() ops in the remoteproc core. The
.prepare() ops is invoked before any loading, and the .unprepare() ops
is invoked after the remoteproc resource cleanup. The R5F core resets
are deasserted in .prepare() and asserted in .unprepare(), and the cores
themselves are started and halted in .start() and .stop() ops. This
ensures symmetric usage and allows the R5F cores state machine to be
maintained properly between using the sysfs 'state' variable, bind/unbind
and regular module load/unload flows.

The subsystem is represented as a single remoteproc in LockStep mode, and
as two remoteprocs in Split mode. The driver uses various TI-SCI interfaces
to talk to the System Controller (DMSC) for managing configuration, power
and reset management of these cores. IPC between the A53 cores and the R5
cores is supported through the virtio rpmsg stack using shared memory and
OMAP Mailboxes.

The AM65x SoCs typically have a single R5FSS in the MCU voltage domain. The
J721E SoCs uses a slightly revised IP and typically have three R5FSSs, with
one cluster present within the MCU voltage domain (MCU_R5FSS0), and the
remaining two clusters present in the MAIN voltage domain (MAIN_R5FSS0 and
MAIN_R5FSS1). The integration of these clusters on J721E SoC is also
slightly different in that these IPs do support an actual local reset line,
while they are a no-op on AM65x SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20201002234234.20704-3-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-10-13 18:34:38 -05:00
Alexandre Courbot 9a4e66802e remoteproc: scp: add COMPILE_TEST dependency
This will improve this driver's build coverage.

Reported-by: Ezequiel Garcia <ezequiel@collabora.com>
Signed-off-by: Alexandre Courbot <acourbot@chromium.org>
Link: https://lore.kernel.org/r/20200915012911.489820-1-acourbot@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-09-15 03:22:34 +00:00
Siddharth Gupta 4476770881 remoteproc: Add remoteproc character device interface
Add the character device interface into remoteproc framework.
This interface can be used in order to boot/shutdown remote
subsystems and provides a basic ioctl based interface to implement
supplementary functionality. An ioctl call is implemented to enable
the shutdown on release feature which will allow remote processors to
be shutdown when the controlling userspace application crashes or hangs.

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Signed-off-by: Siddharth Gupta <sidgup@codeaurora.org>
Link: https://lore.kernel.org/r/1596044401-22083-2-git-send-email-sidgup@codeaurora.org
[bjorn: s/int32_t/s32/ per checkpatch]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-08-04 20:16:37 -07:00
Alex Elder 2f3ee5e481 remoteproc: kill IPA notify code
The IPA code now uses the generic remoteproc SSR notification
mechanism.  This makes the original IPA notification code unused
and unnecessary, so get rid of it.

This is effectively a revert of commit d7f5f3c89c ("remoteproc:
add IPA notification to q6v5 driver").

Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20200724181142.13581-3-elder@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-28 17:11:02 -07:00
Suman Anna 6edbe024ba remoteproc: k3-dsp: Add a remoteproc driver of K3 C66x DSPs
The Texas Instrument's K3 J721E SoCs have two C66x DSP Subsystems in MAIN
voltage domain that are based on the TI's standard TMS320C66x DSP CorePac
module. Each subsystem has a Fixed/Floating-Point DSP CPU, with 32 KB each
of L1P & L1D SRAMs that can be configured and partitioned as either RAM
and/or Cache, and 288 KB of L2 SRAM with 256 KB of memory configurable as
either RAM and/or Cache. The CorePac also includes an Internal DMA (IDMA),
External Memory Controller (EMC), Extended Memory Controller (XMC) with a
Region Address Translator (RAT) unit for 32-bit to 48-bit address
extension/translations, an Interrupt Controller (INTC) and a Powerdown
Controller (PDC).

A new remoteproc module is added to perform the device management of
these DSP devices. The support is limited to images using only external
DDR memory at the moment, the loading support to internal memories and
any on-chip RAM memories will be added in a subsequent patch. RAT support
is also left for a future patch, and as such the reserved memory carveout
regions are all expected to be using memory regions within the first 2 GB.
Error Recovery and Power Management features are not currently supported.

The C66x remote processors do not have an MMU, and so require fixed memory
carveout regions matching the firmware image addresses. Support for this
is provided by mandating multiple memory regions to be attached to the
remoteproc device. The first memory region will be used to serve as the
DMA pool for all dynamic allocations like the vrings and vring buffers.
The remaining memory regions are mapped into the kernel at device probe
time, and are used to provide address translations for firmware image
segments without the need for any RSC_CARVEOUT entries. Any firmware
image using memory outside of the supplied reserved memory carveout
regions will be errored out.

The driver uses various TI-SCI interfaces to talk to the System Controller
(DMSC) for managing configuration, power and reset management of these
cores. IPC between the A72 cores and the DSP cores is supported through
the virtio rpmsg stack using shared memory and OMAP Mailboxes.

Signed-off-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200721223617.20312-6-s-anna@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-28 17:06:45 -07:00
Bjorn Andersson d4c78d2167 remoteproc: qcom: Update PIL relocation info on load
Update the PIL relocation information in IMEM with information about
where the firmware for various remoteprocs are loaded.

Reviewed-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200622191942.255460-4-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-01 22:10:19 -07:00
Bjorn Andersson 549b67da66 remoteproc: qcom: Introduce helper to store pil info in IMEM
A region in IMEM is used to communicate load addresses of remoteproc to
post mortem debug tools. Implement a helper function that can be used to
store this information in order to enable these tools to process
collected ramdumps.

Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200622191942.255460-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-07-01 22:10:18 -07:00
Paul Cercueil 48f0a1bbb7 remoteproc: ingenic: Added remoteproc driver
This driver is used to boot, communicate with and load firmwares to the
MIPS co-processor found in the VPU hardware of the JZ47xx SoCs from
Ingenic.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200515104340.10473-4-paul@crapouillou.net
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-18 16:54:26 -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
Suman Anna 69591e4a0e remoteproc/omap: Add watchdog functionality for remote processors
Remote processors can be stuck in a loop, and may not be recoverable
if they do not have a built-in watchdog. The watchdog implementation
for OMAP remote processors uses external gptimers that can be used
to interrupt both the Linux host as well as the remote processor.

Each remote processor is responsible for refreshing the timer during
normal behavior - during OS task scheduling or entering the idle loop
properly. During a watchdog condition (executing a tight loop causing
no scheduling), the host processor gets interrupts and schedules a
recovery for the corresponding remote processor. The remote processor
may also get interrupted to be able to print a back trace.

A menuconfig option has also been added to enable/disable the Watchdog
functionality, with the default as disabled.

Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Andrew F. Davis <afd@ti.com>
Link: https://lore.kernel.org/r/20200324110035.29907-15-t-kristo@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:51 -07:00
Suman Anna 0aaf191302 remoteproc/omap: Add support for DRA7xx remote processors
DRA7xx/AM57xx SoCs have two IPU and up to two DSP processor subsystems
for offloading different computation algorithms. The IPU processor
subsystem contains dual-core ARM Cortex-M4 processors, and is very
similar to those on OMAP5. The DSP processor subsystem is based on
the TI's standard TMS320C66x DSP CorePac core.

Support has been added to the OMAP remoteproc driver through new
DRA7xx specific compatibles for properly probing and booting all
the different processor subsystem instances on DRA7xx/AM57xx
SoCs - IPU1, IPU2, DSP1 & DSP2. A build dependency with SOC_DRA7XX
is added to enable the driver to be built in DRA7xx-only configuration.

The DSP boot address programming needed enhancement for DRA7xx as the
boot register fields are different on DRA7 compared to OMAP4 and OMAP5
SoCs. The register on DRA7xx contains additional fields within the
register and the boot address bit-field is right-shifted by 10 bits.
The internal memory parsing logic has also been updated to compute
the device addresses for the L2 RAM for DSP devices using relative
addressing logic, and to parse two additional RAMs at L1 level - L1P
and L1D. This allows the remoteproc driver to support loading into
these regions for a small subset of firmware images requiring as
such. The most common usage would be to use the L1 programmable
RAMs as L1 Caches.

The firmware lookup logic also has to be adjusted for DRA7xx as
there are (can be) more than one instance of both the IPU and DSP
remote processors for the first time in OMAP4+ SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
[t-kristo@ti.com: moved address translation quirks to pdata]
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Andrew F. Davis <afd@ti.com>
Acked-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20200324110035.29907-8-t-kristo@ti.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-03-25 22:29:48 -07:00
Alex Elder 5e0ef51b16 remoteproc: clean up notification config
Rearrange the config files for remoteproc and IPA to fix their
interdependencies.

First, have CONFIG_QCOM_Q6V5_MSS select QCOM_Q6V5_IPA_NOTIFY so the
notification code is built regardless of whether IPA needs it.

Next, represent QCOM_IPA as being dependent on QCOM_Q6V5_MSS rather
than setting its value to match QCOM_Q6V5_COMMON (which is selected
by QCOM_Q6V5_MSS).

Drop all dependencies from QCOM_Q6V5_IPA_NOTIFY.  The notification
code will be built whenever QCOM_Q6V5_MSS is set, and it has no other
dependencies.

Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-03-16 17:31:51 -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
Pi-Hsun Shih 7017996951 rpmsg: add rpmsg support for mt8183 SCP.
Add a simple rpmsg support for mt8183 SCP, that use IPI / IPC directly.

Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Link: https://lore.kernel.org/r/20191112110330.179649-4-pihsun@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-20 10:29:56 -08:00
Erin Lo 63c13d61ea remoteproc/mediatek: add SCP support for mt8183
Provide a basic driver to control Cortex M4 co-processor

Signed-off-by: Erin Lo <erin.lo@mediatek.com>
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Signed-off-by: Pi-Hsun Shih <pihsun@chromium.org>
Link: https://lore.kernel.org/r/20191112110330.179649-3-pihsun@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-01-20 10:29:54 -08:00
Christoph Hellwig 6334150e9a remoteproc: don't allow modular build
Remoteproc started using dma_declare_coherent_memory recently, which is
a bad idea from drivers, and the maintainers agreed to fix that.  But
until that is fixed only allow building the driver built in so that we
can remove the dma_declare_coherent_memory export and prevent other
drivers from "accidentally" using it like remoteproc.  Note that the
driver would also leak the declared coherent memory on unload if it
actually was built as a module at the moment.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-09-04 11:13:19 +02:00
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
YueHaibing f1d72c55d9 remoteproc: qcom: q6v5-mss: Fix build error without QCOM_MDT_LOADER
If QCOM_Q6V5_MSS is set but QCOM_MDT_LOADER is not,
building will fails:

drivers/remoteproc/qcom_q6v5_mss.o: In function `q6v5_start':
qcom_q6v5_mss.c:(.text+0x3260): undefined reference to `qcom_mdt_read_metadata'

Add QCOM_MDT_LOADER dependency for QCOM_Q6V5_MSS.

Reported-by: Hulk Robot <hulkci@huawei.com>
Fixes: f04b913834 ("remoteproc: qcom: q6v5-mss: Support loading non-split images")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-07-04 11:20:36 -07:00
Fabien Dessenne 13140de09c remoteproc: stm32: add an ST stm32_rproc driver
This patch introduces a new remoteproc driver to control Cortex-M4
co-processor of the STM32 family.
It provides with the following features:
- start and stop
- dedicated co-processor memory regions registration
- coredump and recovery

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Ludovic Barre <ludovic.barre@st.com>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
[bjorn: Fixup of dev_dbg types and cast of int to pointer in mbox send]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-29 21:00:02 -07:00
Fabio Estevam 0aa25820aa remoteproc: imx: Broaden the Kconfig selection logic
Besides i.MX6SX and i.MX7D, there are other i.MX devices that contain
Cortex M4 and could make use of the imx remoteproc driver, such as
i.MX7ULP, i.MX8M, etc.

Instead of adding new SoC entries in the Kconfig logic, make it
broader by using the more generic ARCH_MXC, which encompasses
all the 32-bit and 64-bit i.MX devices.

Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2019-06-03 21:58:45 -07:00
Thomas Gleixner ec8f24b7fa treewide: Add SPDX license identifier - Makefile/Kconfig
Add SPDX license identifiers to all Make/Kconfig files which:

 - Have no license information of any form

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

  GPL-2.0-only

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-05-21 10:50:46 +02:00
Rohit kumar dc160e4491 remoteproc: qcom: Introduce Non-PAS ADSP PIL driver
This adds Non PAS ADSP PIL driver for Qualcomm Technologies Inc SoCs.

Added initial support for SDM845 with ADSP bootup and shutdown operation
handled from Application Processor SubSystem(APSS).

Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Rohit kumar <rohitkr@codeaurora.org>
[bjorn: Renamed driver and Kconfig from qcom_adsp_pil to qcom_q6v5_adsp]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 23:51:34 -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
Bjorn Andersson 9e004f9716 remoteproc: qcom: Rename Hexagon v5 PAS driver
The Hexagon v5 ADSP driver is used for more than only the ADSP and
there's an upcoming non-PAS ADSP PIL for SDM845, so rename the driver to
qcom_q6v5_pas in order to better suite this.

Cc: Rohit kumar <rohitkr@codeaurora.org>
Reviewed-by: Niklas Cassel <niklas.cassel@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-26 10:11:20 -07:00
Arnd Bergmann 12c2b509c0 remoteproc: qcom: fix Q6V5_WCSS dependencies
A new driver got added that depends on QCOM_SMD and fails to link
as built-in with CONFIG_QCOM_SMD=m:

drivers/remoteproc/qcom_common.o: In function `smd_subdev_stop':
qcom_common.c:(.text+0x674): undefined reference to `qcom_smd_unregister_edge'
drivers/remoteproc/qcom_common.o: In function `smd_subdev_start':
qcom_common.c:(.text+0x700): undefined reference to `qcom_smd_register_edge'

We've fixed the same thing several times before, so use the same
dependency here.

Fixes: 3a3d4163e0 ("remoteproc: qcom: Introduce Hexagon V5 based WCSS driver")
Acked-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-30 21:17:26 -07:00
Sricharan R 3a3d4163e0 remoteproc: qcom: Introduce Hexagon V5 based WCSS driver
IPQ8074 has an integrated Hexagon dsp core q6v5 and a wireless lan
(Lithium) IP. An mdt type single image format is used for the
firmware. So the mdt_load function can be directly used to load
the firmware. Also add the relevant resets required for this core.

Acked-by: Rob Herring <robh@kernel.org> (bindings)
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
[bjorn: Rewrote as a separate driver, intead of extending q6v5_pil.c]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-18 15:57:58 -07:00
Bjorn Andersson 7d674731f3 remoteproc: qcom: q6v5-pil: Use common q6v5 helpers
Migrate the MSS remoteproc driver to use the newly extracted helper
functions.

Reviewed-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-18 15:56:05 -07:00
Bjorn Andersson 6103b1a616 remoteproc: qcom: adsp: Use common q6v5 helpers
Migrate the Hexagon V5 PAS (ADSP) driver to using the newly extracted
helper functions. The use of the handover callback does introduce latent
disabling of proxy resources. But apart from this there should be no
change in functionality.

Reviewed-by: Rohit kumar <rohitkr@codeaurora.org>
Reviewed-by: Sricharan R <sricharan@codeaurora.org>
Tested-by: Rohit kumar <rohitkr@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-18 15:56:02 -07:00
Bjorn Andersson 3b415c8fb2 remoteproc: q6v5: Extract common resource handling
Shared between all Hexagon V5 based remoteprocs is the handling of the 5
interrupts and the SMP2P stop request, so break this out into a separate
function in order to allow these drivers to be cleaned up.

Reviewed-by: Rohit kumar <rohitkr@codeaurora.org>
Tested-by: Rohit kumar <rohitkr@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-18 15:55:57 -07:00
Geert Uytterhoeven 41a5985f17 remoteproc: Remove depends on HAS_DMA in case of platform dependency
Remove dependencies on HAS_DMA where a Kconfig symbol depends on another
symbol that implies HAS_DMA, and, optionally, on "|| COMPILE_TEST".
In most cases this other symbol is an architecture or platform specific
symbol, or PCI.

Generic symbols and drivers without platform dependencies keep their
dependencies on HAS_DMA, to prevent compiling subsystems or drivers that
cannot work anyway.

This simplifies the dependencies, and allows to improve compile-testing.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Acked-by: Robin Murphy <robin.murphy@arm.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-04-25 20:37:39 -07:00
Arnd Bergmann dea4bd1975 soc: qcom: qmi: add CONFIG_NET dependency
Access to the socket API and the root network namespace is only available
when networking is enabled:

ERROR: "kernel_sendmsg" [drivers/soc/qcom/qmi_helpers.ko] undefined!
ERROR: "sock_release" [drivers/soc/qcom/qmi_helpers.ko] undefined!
ERROR: "sock_create_kern" [drivers/soc/qcom/qmi_helpers.ko] undefined!
ERROR: "kernel_getsockname" [drivers/soc/qcom/qmi_helpers.ko] undefined!
ERROR: "init_net" [drivers/soc/qcom/qmi_helpers.ko] undefined!
ERROR: "kernel_recvmsg" [drivers/soc/qcom/qmi_helpers.ko] undefined!

Adding a dependency on CONFIG_NET lets us build it in all randconfig
builds.

Fixes: 9b8a11e826 ("soc: qcom: Introduce QMI encoder/decoder")
Acked-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-03-27 13:43:29 -07:00
Bjorn Andersson 1fb82ee806 remoteproc: qcom: Introduce sysmon
The sysmon client communicates either via a dedicated SMD/GLINK channel
or via QMI encoded messages over IPCROUTER with remote processors in
order to perform graceful shutdown and inform about other remote
processors shutting down.

Acked-By: Chris Lew <clew@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-02-12 16:57:22 -08:00
Sarangdhar Joshi 2666ca9197 remoteproc: Add remote processor coredump support
As the remoteproc framework restarts the remote processor after a fatal
event, it's useful to be able to acquire a coredump of the remote
processor's state, for post mortem debugging.

This patch introduces a mechanism for extracting the memory contents
after the remote has stopped and before the restart sequence has begun
in the recovery path. The remoteproc framework builds the core dump in
memory and use devcoredump to expose this to user space.

Signed-off-by: Sarangdhar Joshi <spjoshi@codeaurora.org>
[bjorn: Use vmalloc instead of composing the ELF on the fly]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-02-12 11:05:29 -08:00
Anup Patel 4d91d7b099 rpmsg: Allow RPMSG_VIRTIO to be enabled via menuconfig or defconfig
Currently, RPMSG_VIRTIO can only be enabled if some other kconfig
option selects it. This does not allow it to be enabled for
virtualized systems where Virtio RPMSG is available over Virtio
MMIO or PCI transport.

This patch updates RPMSG_VIRTIO kconfig option so that we can
enable the VirtIO RPMSG driver via menuconfig or defconfig. The
patch also removes "select RPMSG_VIRTIO" from various remoteproc
kconfig options because it is now user selectable.

Signed-off-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-10-25 21:51:05 -07:00
Arnd Bergmann ab759b9732 remoteproc: qcom: fix RPMSG_QCOM_GLINK_SMEM dependencies
When RPMSG_QCOM_GLINK_SMEM=m and one driver causes the qcom_common.c file
to be compiled as built-in, we get a link error:

drivers/remoteproc/qcom_common.o: In function `glink_subdev_remove':
qcom_common.c:(.text+0x130): undefined reference to `qcom_glink_smem_unregister'
qcom_common.c:(.text+0x130): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `qcom_glink_smem_unregister'
drivers/remoteproc/qcom_common.o: In function `glink_subdev_probe':
qcom_common.c:(.text+0x160): undefined reference to `qcom_glink_smem_register'
qcom_common.c:(.text+0x160): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `qcom_glink_smem_register'

Out of the three PIL driver instances, QCOM_ADSP_PIL already has a
Kconfig dependency to prevent this from happening, but the other two
do not. This adds the same dependency there.

Fixes: eea07023e6 ("remoteproc: qcom: adsp: Allow defining GLINK edge")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-10-10 11:28:20 -07:00
Linus Torvalds 7151202b64 rpmsg updates for v4.14
This extends the Qualcomm GLINK implementation to support the additional
 features used for communicating with modem and DSP coprocessors in modern
 Qualcomm platforms.
 
 In addition to this there's support for placing virtio RPMSG buffers in
 non-System RAM.
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Merge tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This extends the Qualcomm GLINK implementation to support the
  additional features used for communicating with modem and DSP
  coprocessors in modern Qualcomm platforms.

  In addition to this there's support for placing virtio RPMSG buffers
  in non-System RAM"

* tag 'rpmsg-v4.14' of git://github.com/andersson/remoteproc: (29 commits)
  rpmsg: glink: initialize ret to zero to ensure error status check is correct
  rpmsg: glink: fix null pointer dereference on a null intent
  dt-bindings: soc: qcom: Extend GLINK to cover SMEM
  remoteproc: qcom: adsp: Allow defining GLINK edge
  rpmsg: glink: Export symbols from common code
  rpmsg: glink: Release idr lock before returning on error
  rpmsg: glink: Handle remote rx done command
  rpmsg: glink: Request for intents when unavailable
  rpmsg: glink: Use the intents passed by remote
  rpmsg: glink: Receive and store the remote intent buffers
  rpmsg: glink: Add announce_create ops and preallocate intents
  rpmsg: glink: Add rx done command
  rpmsg: glink: Make RX FIFO peak accessor to take an offset
  rpmsg: glink: Use the local intents when receiving data
  rpmsg: glink: Add support for TX intents
  rpmsg: glink: Fix idr_lock from mutex to spinlock
  rpmsg: glink: Add support for transport version negotiation
  rpmsg: glink: Introduce glink smem based transport
  rpmsg: glink: Do a mbox_free_channel in remove
  rpmsg: glink: Return -EAGAIN when there is no FIFO space
  ...
2017-09-09 14:34:38 -07:00
Bjorn Andersson eea07023e6 remoteproc: qcom: adsp: Allow defining GLINK edge
Introduce the GLINK subdev, which allows the definition of a GLINK edge
as child of a remoteproc.

Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-09-01 15:31:23 -07:00
Oleksij Rempel a0ff4aa6f0 remoteproc: imx_rproc: add a NXP/Freescale imx_rproc driver
Provide a basic driver to control Cortex M4 co-processor found
on NXP i.MX7D and i.MX6SX.
Currently it is able to resolve addresses between M4 and main CPU,
start and stop the co-processor. Other functionality is not provided
or test.

This driver was tested on NXP i.MX7D and expected to work on
i.MX6SX as well.

Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-08-30 16:07:41 -07:00
Suman Anna b0af7b7dbe remoteproc/keystone: Fix circular dependencies for ARM configs
Drop the dependency on RESET_CONTROLLER for the Keystone remoteproc
driver to resolve some circular dependencies around different choices
for RESET_CONTROLLER on common ARM configs. This dependency is
inherent as the RESET_CONTROLLER will be enabled due to the enabled
ARCH_HAS_RESET_CONTROLLER for ARCH_KEYSTONE.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:21:34 -07:00
Suman Anna e3f37c5ed7 remoteproc: Drop redundant REMOTEPROC dependency from driver Kconfigs
All the remoteproc platform driver Kconfig symbols are defined and
included under an if REMOTEPROC condition, so the dependency on
REMOTEPROC is implicit and they do not need an explicit 'depends
on REMOTEPROC' line. So, clean these up.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:01:14 -07:00
Suman Anna 384700d465 remoteproc: Drop VIRTUALIZATION dependency from REMOTEPROC
A dependency to VIRTUALIZATION has been added to REMOTEPROC in v3.10
kernel in commit b9777859ec ("remoteproc: fix kconfig dependencies
for VIRTIO") to resolve Kconfig warnings due to the inclusion of the
virtio configuration file from the ARM's KVM config file. The KVM
config was fixed properly in the subsequent release in commit
8bd4ffd6b3 ("ARM: kvm: don't include drivers/virtio/Kconfig").
So, drop this unneeded VIRTUALIZATION dependency from REMOTEPROC.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-27 16:01:00 -07:00
Suman Anna e88bb8f7a1 remoteproc/keystone: Add a remoteproc driver for Keystone 2 DSPs
The Texas Instrument's Keystone 2 family of SoCs has 1 or more
TMS320C66x DSP Core Subsystems (C66x CorePacs). Each subsystem has
a C66x Fixed/Floating-Point DSP Core, with 32KB of L1P and L1D SRAMs,
that can be configured and partitioned as either RAM and/or Cache,
and 1 MB of L2 SRAM. The CorePac also includes an Internal DMA (IDMA),
External Memory Controller (EMC), Extended Memory Controller (XMC)
with a Memory Protection and Address Extension (MPAX) unit, a Bandwidth
Management (BWM) unit, an Interrupt Controller (INTC) and a Powerdown
Controller (PDC).

A new remoteproc module is added to perform the device management of
these DSP devices. The driver expects the firmware names to be of the
form "keystone-dsp<X>-fw", where X is the corresponding DSP number, and
uses the standard remoteproc core ELF loader. The support is limited
to images only using the DSP internal memories at the moment. This
remoteproc driver is also designed to work with virtio, and uses the
IPC Generation registers for performing the virtio signalling and
getting notified of exceptions.

The driver currently supports the 66AK2H/66AK2K, 66AK2L and 66AK2E
SoCs.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Sam Nelson <sam.nelson@ti.com>
Signed-off-by: Andrew F. Davis <afd@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-26 13:02:38 -07:00
Suman Anna c51e882cd7 remoteproc/davinci: Update Kconfig to depend on DMA_CMA
The davinci remoteproc driver requires a CMA pool for allocating
memory for virtio vrings/buffers and other sections of the firmware
image. The allocations are done using the DMA API. The CMA option is
currently selected automatically on systems with MMU when davinci
remoteproc is enabled, switch this to a saner depends on dependency
convention. The dependency is also updated to use the DMA_CMA kconfig
symbol that is used for CMA allocations using the DMA API, the CMA
dependency is inherited implicitly.

Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2017-06-25 13:59:58 -07:00