Commit Graph

357 Commits

Author SHA1 Message Date
Sibi Sankar f18b7e914f remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredump
Register the MDT segments, custom dumpfn and private data with the
remoteproc core dump functionality.

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

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

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

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 12:54:02 -07:00
Sibi Sankar ab8f873bb9 remoteproc: Add mechanism for custom dump function assignment
This patch adds a mechanism for assigning each rproc dump segment with
a custom dump function and private data. The dump function is to be
called for each rproc segment during coredump if assigned.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
[bjorn: reordred arguments to rproc_coredump_add_custom_segment()]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 12:53:55 -07:00
Sibi Sankar 3952105df4 remoteproc: Introduce custom dump function for each remoteproc segment
Introduce custom dump function and private data per remoteproc dump
segment. The dump function is responsible for filling the device memory
segment associated with coredump

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-19 11:14:16 -07:00
Loic Pallardy c6aed238b7 remoteproc: modify vring allocation to rely on centralized carveout allocator
Current version of rproc_alloc_vring function supports only dynamic vring
allocation.

This patch allows to allocate vrings based on memory region declatation.
Vrings are now manage like memory carveouts, to communize memory management
code in rproc_alloc_registered_carveouts().

Allocated buffer is retrieved in rp_find_vq() thanks to
rproc_find_carveout_by_name() functions for.

This patch sets vrings names to vdev"x"vring"y" with x vdev index in
resource table and y vring index in vdev. This will be updated when
name will be associated to vdev in firmware resource table.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-14 23:37:40 -07:00
Brian Norris 1e2517d126 remoteproc: qcom: q6v5: shore up resource probe handling
Commit d5269c4553 ("remoteproc: qcom: q6v5: Propagate EPROBE_DEFER")
fixed up our probe code to handle -EPROBE_DEFER, but it ignored one of
our interrupts, and it also didn't really handle all the other error
codes you might get (e.g., with a bad DT definition). Handle those all
explicitly.

Fixes: d5269c4553 ("remoteproc: qcom: q6v5: Propagate EPROBE_DEFER")
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 23:13:32 -07:00
Wei Yongjun 6e6b1ada0c remoteproc: qcom: qcom_q6v5_adsp: Fix some return value check
In case of error, the functions devm_kcalloc() and devm_ioremap()
returns NULL pointer not ERR_PTR(). The IS_ERR() test in the return
value check should be replaced with NULL test.

Also removed -EPROBE_DEFER check since devm_kcalloc never return
this error.

Fixes: dc160e4491 ("remoteproc: qcom: Introduce Non-PAS ADSP PIL driver")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 23:08:07 -07:00
Loic Pallardy ffa5f9c848 remoteproc: modify rproc_handle_carveout to support pre-registered region
In current version rproc_handle_carveout() function registers carveout
for allocation.
This patch extends rproc_handle_carveout() function to support
pre-registered region. Match is done on region name, then requested
device address and length are checked.
If match found, pre-registered region is associated with resource
table request.
If no name match found, new carveout is registered for allocation.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:41:04 -07:00
Loic Pallardy c874bf59ad remoteproc: add helper function to check carveout device address
This patch introduces a function to verify that a specified carveout
is fitting request device address and associated length

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:40:55 -07:00
Loic Pallardy 1429cca117 remoteproc: add helper function to allocate rproc_mem_entry from reserved memory
This patch introduces rproc_res_mem_entry_init() helper function to
allocate a rproc_mem_entry structure from a reserved memory region.
In that case, rproc_mem_entry structure has no alloc and release ops.
It will be used to assigned the specified reserved memory to any
rproc sub device.
Relation between rproc_mem_entry and rproc sub device will be done
by name.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:14 -07:00
Loic Pallardy d7c51706d0 remoteproc: add alloc ops in rproc_mem_entry struct
Memory entry could be allocated in different ways (ioremap,
dma_alloc_coherent, internal RAM allocator...).
This patch introduces an alloc ops in rproc_mem_entry structure
to associate dedicated allocation mechanism to each memory entry
descriptor in order to do remote core agnostic from memory allocators.

The introduction of this ops allows to perform allocation of all registered
carveout at the same time, just before calling rproc_start().
It simplifies and makes uniform carveout management whatever origin.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:12 -07:00
Loic Pallardy b0019ccd7e remoteproc: introduce rproc_find_carveout_by_name function
This patch provides a new function to find a carveout according
to a name.
If match found, this function returns a pointer on the corresponding
carveout (rproc_mem_entry structure).

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:11 -07:00
Loic Pallardy 15c0b0258e remoteproc: introduce rproc_add_carveout function
This patch introduces a new API to allow platform driver to register
platform specific carveout regions.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:08 -07:00
Loic Pallardy 72029c901a remoteproc: add helper function to allocate and init rproc_mem_entry struct
This patch introduces rproc_mem_entry_init helper function to
simplify rproc_mem_entry structure allocation and filling by
client.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:06 -07:00
Loic Pallardy 3265230c5b remoteproc: add name in rproc_mem_entry struct
Add name field in struct rproc_mem_entry.
This new field will be used to match memory area
requested in resource table with pre-registered carveout.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:05 -07:00
Loic Pallardy f2e74abfaa remoteproc: add release ops in rproc_mem_entry struct
Memory entry could be allocated in different ways (ioremap,
dma_alloc_coherent, internal RAM allocator...).
This patch introduces a release ops in rproc_mem_entry structure
to associate dedicated release mechanism to each memory entry descriptor
in order to keep remoteproc core generic.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:04 -07:00
Loic Pallardy eb30596eae remoteproc: add rproc_va_to_pa function
This new function translates CPU virtual address in
CPU physical one according to virtual address location.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Acked-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:39:03 -07:00
Loic Pallardy 3bc8140b15 remoteproc: configure IOMMU only if device address requested
If there is no IOMMU associate to remote processor device,
remoteproc_core won't be able to satisfy device address requested
in firmware resource table.
Return an error as configuration won't be coherent.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-09 22:38:37 -07:00
Brian Norris bbcda30271 remoteproc: qcom: q6v5-mss: add SCM probe dependency
The memory ownership transfer request is performed using SCM, ensure
that SCM is available before we probe the driver if memory protection is
needed by the subsystem.

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

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-07 23:50:18 -07:00
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
Sibi Sankar d3ae96c0e6 remoteproc: qcom: q6v5: Fix a race condition on fatal crash
Currently with GLINK_SSR enabled each fatal crash results in servicing
a crash from wdog as well. This is due to a race that occurs in setting
the running flag in the shutdown path. Fix this by moving the running
flag to the end of fatal interrupt handler.

Crash Logs:
qcom-q6v5-pil 4080000.remoteproc: fatal error without message
remoteproc remoteproc0: crash detected in 4080000.remoteproc: type fatal
	error
remoteproc remoteproc0: handling crash #1 in 4080000.remoteproc
remoteproc remoteproc0: recovering 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: watchdog without message
remoteproc remoteproc0: crash detected in 4080000.remoteproc: type watchdog
remoteproc:glink-edge: intent request timed out
qcom_glink_ssr remoteproc:glink-edge.glink_ssr.-1.-1: failed to send
	cleanup message
qcom_glink_ssr remoteproc:glink-edge.glink_ssr.-1.-1: timeout waiting
	for cleanup done message
qcom-q6v5-pil 4080000.remoteproc: timed out on wait
qcom-q6v5-pil 4080000.remoteproc: port failed halt
remoteproc remoteproc0: stopped remote processor 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: MBA booted, loading mpss
remoteproc remoteproc0: remote processor 4080000.remoteproc is now up
remoteproc remoteproc0: handling crash #2 in 4080000.remoteproc
remoteproc remoteproc0: recovering 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: port failed halt
remoteproc remoteproc0: stopped remote processor 4080000.remoteproc
qcom-q6v5-pil 4080000.remoteproc: MBA booted, loading mpss
remoteproc remoteproc0: remote processor 4080000.remoteproc is now up

Suggested-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 23:33:46 -07:00
Suman Anna faeadbb640 remoteproc: Check for NULL firmwares in sysfs interface
The remoteproc framework provides a sysfs file 'firmware'
for modifying the firmware image name from userspace. Add
an additional check to ensure NULL firmwares are errored
out right away, rather than getting a delayed error while
requesting a firmware during the start of a remoteproc
later on.

Tested-by: Arnaud Pouliquen <arnaud.pouliquen@st.com>
Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 23:04:20 -07:00
Sibi Sankar 29a5f9aaf9 remoteproc: qcom: q6v5-pil: Add PDC reset for modem on SDM845 SoCs
In the presence of a PDC block working with subsystem RSC, assert/deassert
PDC reset in modem start/stop path.

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

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-10-05 11:43:48 -07:00
Bjorn Andersson 0af9368211 remoteproc: qcom: pas: Add QCS404 remoteprocs
Add compatibles for the three PAS based remote processors found in
QCS404.

Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-27 23:32:18 -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
Bjorn Andersson d5269c4553 remoteproc: qcom: q6v5: Propagate EPROBE_DEFER
In the case that the interrupts fail to result because of the
interrupt-controller not yet being registered the
platform_get_irq_byname() call will fail with -EPROBE_DEFER, but passing
this into devm_request_threaded_irq() will result in -EINVAL being
returned, the driver is therefor not reprobed later.

Fixes: 3b415c8fb2 ("remoteproc: q6v5: Extract common resource handling")
Cc: stable@vger.kernel.org
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-26 10:10:11 -07:00
Bjorn Andersson 3b0d1b65c1 remoteproc: qcom: adsp: Add SDM845 ADSP and CDSP support
Add support for booting the Audio and Compute DSPs found in Qualcomm's
SDM845 platform.

As with the previous platforms the power rail handling needs to be
updated once the appropriate support lands upstream.

Acked-by: Rob Herring <robh@kernel.org>
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-09-06 14:21:18 -07:00
Bjorn Andersson 1e28dbbece remoteproc/davinci: Use %zx for formating size_t
da8xx_rproc_mem size is of type size_t, so use %zx to format the debug
print of it to avoid a compile warning.

Acked-by: Suman Anna <s-anna@ti.com>
Reviewed-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-08-27 17:06:17 -07:00
Bartosz Golaszewski b2201ee554 remoteproc/davinci: use the reset framework
Switch to using the reset framework instead of handcoded reset routines
we used so far.

Reviewed-by: Sekhar Nori <nsekhar@ti.com>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-08-16 17:39:55 -07:00
Suman Anna 491278b698 remoteproc/davinci: Mark error recovery as disabled
The Davinci remoteproc driver does not support error recovery at
present, so mark the corresponding remoteproc flag appropriately
so that the debugfs flag shows the value as 'disabled' by default.

Signed-off-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-08-13 11:51:11 -07:00
Loic Pallardy 4499665b32 remoteproc: st_slim: replace "%p" with "%pK"
The format specifier "%p" can leak kernel addresses.
Use "%pK" instead.

Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-30 23:25:09 -07:00
Loic Pallardy 276ec99342 remoteproc: replace "%p" with "%pK"
The format specifier "%p" can leak kernel addresses.
Use "%pK" instead.

This patch proposes changes for remoteproc core only.

Acked-by: Suman Anna <s-anna@ti.com>
Signed-off-by: Loic Pallardy <loic.pallardy@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-30 23:24:15 -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
Suman Anna f68d51bd8a remoteproc: Reset table_ptr in rproc_start() failure paths
Unwind the modified table_ptr and restore it to the local copy
upon any subsequent failures in the rproc_start() function. This
keeps the function to remain balanced on failures without the need
to balance any modified variables elsewhere.

While at this, do some minor cleanup of the extra lines between
the failure labels as well.

Signed-off-by: Suman Anna <s-anna@ti.com>
[bjorn: unconditionally set table_ptr to cached_table]
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-30 21:11:43 -07:00
Sibi Sankar 7cbb540a3a remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvote
GCC_MSS_AXIS2 clock is used for disabling boot IMEM (a part of
AP boot up). With Boot IMEM disable now a part TZ/ATF, AXIS2
clock is no longer required post AP boot up and expected to
remain untouched. However if the clock is turned ON after Q6
is brought out of reset and later turned off, it results in
modem hang. When Q6 attempts a power collapse the internal
handshaking to check if AXIS2 is idle never goes through since
it is turned off preventing the RSC from getting triggered,
leaving modem in a funky state. Hence removing AXIS2 clk
enable/disable from the driver.

Reported-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-10 14:08:44 -07:00
Arnd Bergmann ded79d0698 remoteproc: qcom q6v5: fix modular build
The new driver only works as built-in code at the moment but fails
with a link error when configured as a loadable module:

WARNING: modpost: missing MODULE_LICENSE() in drivers/remoteproc/qcom_q6v5.o
see include/linux/module.h for more information
ERROR: "qcom_q6v5_init" [drivers/remoteproc/qcom_q6v5_pil.ko] undefined!
ERROR: "qcom_q6v5_wait_for_start" [drivers/remoteproc/qcom_q6v5_pil.ko] undefined!
ERROR: "qcom_q6v5_prepare" [drivers/remoteproc/qcom_q6v5_pil.ko] undefined!
ERROR: "qcom_q6v5_unprepare" [drivers/remoteproc/qcom_q6v5_pil.ko] undefined!
ERROR: "qcom_q6v5_request_stop" [drivers/remoteproc/qcom_q6v5_pil.ko] undefined!
ERROR: "qcom_q6v5_init" [drivers/remoteproc/qcom_adsp_pil.ko] undefined!
ERROR: "qcom_q6v5_wait_for_start" [drivers/remoteproc/qcom_adsp_pil.ko] undefined!
ERROR: "qcom_q6v5_prepare" [drivers/remoteproc/qcom_adsp_pil.ko] undefined!
ERROR: "qcom_q6v5_unprepare" [drivers/remoteproc/qcom_adsp_pil.ko] undefined!
ERROR: "qcom_q6v5_request_stop" [drivers/remoteproc/qcom_adsp_pil.ko] undefined!

This exports the internal symbols as needed and adds the MODULE_LICENSE()
and MODULE_DESCRIPTION() tags. I could not figure out the author, so I
did not add a MODULE_AUTHOR() tag for now.

Fixes: 3b415c8fb2 ("remoteproc: q6v5: Extract common resource handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-07-10 14:06:52 -07:00
Bjorn Andersson c455daa4af remoteproc: Introduce prepare and unprepare for subdevices
On rare occasions a subdevice might need to prepare some hardware
resources before a remote processor is booted, and clean up some
state after it has been shut down.

One such example is the IP Accelerator found in various Qualcomm
platforms, which is accessed directly from both the modem remoteproc
and the application subsystem and requires an intricate lockstep
process when bringing the modem up and down.

Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[elder@linaro.org: minor description and comment edits]
Signed-off-by Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26 14:09:12 -07:00
Alex Elder 6f8b037308 remoteproc: rename subdev probe and remove functions
Rename functions used when subdevices are started and stopped to
reflect the new naming scheme.

Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26 14:09:12 -07:00
Bjorn Andersson 4902676f04 remoteproc: Make client initialize ops in rproc_subdev
In preparation of adding the additional prepare and unprepare operations
make the client responsible for filling out the function pointers of the
rproc_subdev. This makes the arguments to rproc_add_subdev() more
manageable, in particular when some of the functions are left out.

Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[elder@linaro.org: added comment about assigning function pointers]
Signed-off-by Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26 13:53:07 -07:00
Bjorn Andersson be37b1e0fb remoteproc: Make start and stop in subdev optional
Some subdevices, such as glink ssr only care about the stop operation,
so make the operations optional to reduce client code.

Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Signed-off-by Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26 13:53:06 -07:00
Bjorn Andersson 618fcff374 remoteproc: Rename subdev functions to start/stop
"start" and "stop" are more suitable names for how these two operations
are used, and they fit better with the upcoming introduction of two
additional operations in the struct.

Tested-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
[elder@linaro.org: minor comment edits]
Signed-off-by Alex Elder <elder@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26 13:53:05 -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
Stefan Agner d7dc899abe treewide: use PHYS_ADDR_MAX to avoid type casting ULLONG_MAX
With PHYS_ADDR_MAX there is now a type safe variant for all bits set.
Make use of it.

Patch created using a semantic patch as follows:

// <smpl>
@@
typedef phys_addr_t;
@@
-(phys_addr_t)ULLONG_MAX
+PHYS_ADDR_MAX
// </smpl>

Link: http://lkml.kernel.org/r/20180419214204.19322-1-stefan@agner.ch
Signed-off-by: Stefan Agner <stefan@agner.ch>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>	[arm64]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-06-15 07:55:25 +09:00