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path: root/drivers/remoteproc
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2018-11-26virtio_ring: disable packed ring on unsupported transportsTiwei Bie
Currently, ccw, vop and remoteproc need some legacy virtio APIs to create or access virtio rings, which are not supported by packed ring. So disable packed ring on these transports for now. Signed-off-by: Tiwei Bie <tiwei.bie@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-10-19remoteproc: qcom: q6v5-mss: Register segments/dumpfn for coredumpSibi Sankar
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>
2018-10-19remoteproc: qcom: q6v5-mss: Add custom dump function for modemSibi Sankar
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>
2018-10-19remoteproc: qcom: q6v5-mss: Refactor mba load/unload sequenceSibi Sankar
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>
2018-10-19remoteproc: Add mechanism for custom dump function assignmentSibi Sankar
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>
2018-10-19remoteproc: Introduce custom dump function for each remoteproc segmentSibi Sankar
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>
2018-10-14remoteproc: modify vring allocation to rely on centralized carveout allocatorLoic Pallardy
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>
2018-10-09remoteproc: qcom: q6v5: shore up resource probe handlingBrian Norris
Commit d5269c4553a6 ("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: d5269c4553a6 ("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>
2018-10-09remoteproc: qcom: qcom_q6v5_adsp: Fix some return value checkWei Yongjun
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: dc160e449122 ("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>
2018-10-09remoteproc: modify rproc_handle_carveout to support pre-registered regionLoic Pallardy
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>
2018-10-09remoteproc: add helper function to check carveout device addressLoic Pallardy
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>
2018-10-09remoteproc: add helper function to allocate rproc_mem_entry from reserved memoryLoic Pallardy
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>
2018-10-09remoteproc: add alloc ops in rproc_mem_entry structLoic Pallardy
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>
2018-10-09remoteproc: introduce rproc_find_carveout_by_name functionLoic Pallardy
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>
2018-10-09remoteproc: introduce rproc_add_carveout functionLoic Pallardy
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>
2018-10-09remoteproc: add helper function to allocate and init rproc_mem_entry structLoic Pallardy
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>
2018-10-09remoteproc: add name in rproc_mem_entry structLoic Pallardy
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>
2018-10-09remoteproc: add release ops in rproc_mem_entry structLoic Pallardy
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>
2018-10-09remoteproc: add rproc_va_to_pa functionLoic Pallardy
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>
2018-10-09remoteproc: configure IOMMU only if device address requestedLoic Pallardy
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>
2018-10-08remoteproc: qcom: q6v5-mss: add SCM probe dependencyBrian Norris
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: 6c5a9dc2481b ("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>
2018-10-07remoteproc: qcom: q6v5-pil: Assign the relocated addressSibi Sankar
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>
2018-10-05remoteproc: qcom: Introduce Non-PAS ADSP PIL driverRohit kumar
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>
2018-10-05remoteproc: qcom: q6v5: Fix a race condition on fatal crashSibi Sankar
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>
2018-10-05remoteproc: Check for NULL firmwares in sysfs interfaceSuman Anna
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>
2018-10-05remoteproc: qcom: q6v5-pil: Add PDC reset for modem on SDM845 SoCsSibi Sankar
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>
2018-10-05remoteproc: qcom: q6v5-pil: Explicitly get mss_restart lineSibi Sankar
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>
2018-09-27remoteproc: qcom: pas: Add QCS404 remoteprocsBjorn Andersson
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>
2018-09-26remoteproc: qcom: Rename Hexagon v5 modem driverBjorn Andersson
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>
2018-09-26remoteproc: qcom: Rename Hexagon v5 PAS driverBjorn Andersson
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>
2018-09-26remoteproc: qcom: q6v5: Propagate EPROBE_DEFERBjorn Andersson
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: 3b415c8fb263 ("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>
2018-09-06remoteproc: qcom: adsp: Add SDM845 ADSP and CDSP supportBjorn Andersson
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>
2018-08-27remoteproc/davinci: Use %zx for formating size_tBjorn Andersson
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>
2018-08-16remoteproc/davinci: use the reset frameworkBartosz Golaszewski
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>
2018-08-13remoteproc/davinci: Mark error recovery as disabledSuman Anna
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>
2018-07-30remoteproc: st_slim: replace "%p" with "%pK"Loic Pallardy
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>
2018-07-30remoteproc: replace "%p" with "%pK"Loic Pallardy
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>
2018-07-30remoteproc: qcom: fix Q6V5_WCSS dependenciesArnd Bergmann
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: 3a3d4163e0bf ("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>
2018-07-30remoteproc: Reset table_ptr in rproc_start() failure pathsSuman Anna
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>
2018-07-10remoteproc: qcom: q6v5-pil: fix modem hang on SDM845 after axis2 clk unvoteSibi Sankar
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>
2018-07-10remoteproc: qcom q6v5: fix modular buildArnd Bergmann
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: 3b415c8fb263 ("remoteproc: q6v5: Extract common resource handling") Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2018-06-26remoteproc: Introduce prepare and unprepare for subdevicesBjorn Andersson
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>
2018-06-26remoteproc: rename subdev probe and remove functionsAlex Elder
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>
2018-06-26remoteproc: Make client initialize ops in rproc_subdevBjorn Andersson
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>
2018-06-26remoteproc: Make start and stop in subdev optionalBjorn Andersson
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>
2018-06-26remoteproc: Rename subdev functions to start/stopBjorn Andersson
"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>
2018-06-18remoteproc: qcom: Introduce Hexagon V5 based WCSS driverSricharan R
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>
2018-06-18remoteproc: qcom: q6v5-pil: Use common q6v5 helpersBjorn Andersson
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>
2018-06-18remoteproc: qcom: adsp: Use common q6v5 helpersBjorn Andersson
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>
2018-06-18remoteproc: q6v5: Extract common resource handlingBjorn Andersson
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>
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