| Commit message (Collapse) | Author | Age |
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If we disable SYSLINK_RECOVERY option in drivers->syslink
->SYSLINK_RECOVERY, build breaks with below errors
drivers/built-in.o: In function `devh_notification_handler':
drivers/dsp/syslink/devh/44xx/devh44xx.c:103: undefined reference to
`ipc_recover_schedule'
drivers/built-in.o: In function `devh44xx_wdt_ipc_notifier_call':
drivers/dsp/syslink/devh/44xx/devh44xx.c:244: undefined reference to
`ipc_recover_schedule'
make: *** [.tmp_vmlinux1] Error 1
Fixed by moving ipc_revover_schedule function under SYSLINK_RECOVERY Flag.
Change-Id: Idb4de38bbe1e2586eebac9f76150616ea93d56f3
Signed-off-by: Shivananda Hebbar <x0hebbar@ti.com>
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Instead of using the current pid use the pid passed to
the devh.This is the required since the process who opens
the driver handle (iommu, tiler, ipc),may not the one
releasing the handle.And in turn devh will be giving the
wrong pid to ipu pm.
Change-Id: I153ef85cbc0b5d671b82cfa5f07bbb1e99c39531
Signed-off-by: Subin K G <subin.kg@ti.com>
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This patch uses unlocked_ioctl instead of ioctl in all SysLink drivers.
The support for ioctl was removed since BKL is not to be used anymore.
Signed-off-by: Subramaniam C.A <subramaniam.ca@ti.com>
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Also has compiler warning fix in AUXCLK request function
syslink: ipu_pm: refactor and cleanup functions
Including:
- ipu_pm module code was a reviewed and reworked to remove
redundant code, simplify and enhance the implementation.
- Change ipu_notifications to receive proc_id.
- Add IOMMU_FAULT notifier callback function.
- Function to release all resources when IOMMU_FAULT event
is received or when detaching, this is called in a
workqueue to avoid calling context problems in the case of
the FAULT event and called directly in the case of detaching.
- Add the possibility to select the SRC_CLK when requesting
a gptimer.
- Add pr_debug traces for debugging purpose:
Previosly all the errors when requesting/releasing
resources were just reported to IPU using notify_event
in the payload. Now kernel is printing errors/warnings/
debug messages and also reporting the error back to IPU.
This is needed because IPU could be dead and not able to
see/print the error ipu_pm is reporting.
Change-Id: I22614bafc7cb7e3070d5bf565be6138fca5a809b
Signed-off-by: Miguel Vadillo <vadillo@ti.com>
syslink: ipu_pm: fix suspend/resume when no IPU image loaded
ipu_pm_drv_suspend and _resume were trying to notify ipu for
suspend/resume without cheking if an image was loaded leading
to an error in the suspend path.
Checking the handle to each proc before sending the notification
is avoiding this.
Suspend/resume is working now with/without an image loaded in IPU.
Change-Id: I55aca1674b1cdffba9fb3247e7da605b4082a521
Signed-off-by: Miguel Vadillo <vadillo@ti.com>
SYSLINK: IPU-PM: clean up warning in AUXCLK request function
clean up clk_disable( ) warning in AUXCLK request function:
ipu_pm_get_aux_clk( ).
Change-Id: I6bcc41e220f80f4e248bef65b3ed0fc379451d98
Signed-off-by: Paul Hunt <hunt@ti.com>
SYSLINK: IPU-PM: restore IOMMU during ipu pm detach and mmu close
The IPU PM during the Ducati hibernation is shutting down the
IOMMU. If the User process that is using IOMMU is killed when the
Ducati is in hibernation state, the board hangs due to access to IOMMU during
resource cleanup.
The issue was observed when the Syslink daemon is killed with Ducati in
hibernation.
Change-Id: Ia5bd05fe382488c33ac858657f05aee9e22a48ee
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
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This patch adds devh to syslink tree
Signed-off-by: Angela Stegmaier <angelabaker@ti.com>
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
SYSLINK: Devh - Add device event handling and SYSERROR support for OMAP4
SYSLINK: Devh - Add event handling and SYSERROR support
DSP exceptions that are unrecoverable need to be communicated
to the host processor so that it can print debug information,
do resource cleanup and ultimately reload DSP. The notification
mechanism for sending events to the host processor has been
consolidated in a new module named Device Error Handler on the
remote processor.
The notification mechanism relies on a NotifyShm event to know
about error events on the remote cores. The support has been
built into the existing Devh module which registers a call
back for the previously agreed event id to be used for error
events.
Upon receving an error event, the module will notify other
kernel modules which have registered with it. It will also
notify userspace applicatios through an agreed fd event. This
support will be built in a following patch.
For now, the module uses event id 4 to receive notify messages
from remote processor. Enhacements that will follow include using
a reserved event for sending notify messages.
Initialize the Device Error Handler functionality in Devh. Devh
registers a callback for NotifyShm event to be triggered when
an error occurs on the remote core.
Devh module has the support for receiving notifications from remote cores about
irrecoverble errors. Userspace processes need to be notified for such events
as well in order to do cleanup and recovery. Besides, such notifications can
also be used to output valuable debug information about error scenarios.
[Suman A] Corrected err_event_id from 4 to use as
err_event_id = (4 | (NOTIFY_SYSTEMKEY << 16)),
Change-Id: I961d83e62e5ce21b32f5e2c461644e6f2bd8cb3c
Signed-off-by: Wajahat Khan <w-khan@ti.com>
Signed-off-by: Hari Kanigeri <h-kangieri2@ti.com>
SYSLINK: devh - add possibility of register for specific events
New paratemer is added to event register ioctl to allow users
register for a specific event.
Modified to register notifier for IPU_PM watch-dog timer
[Hari K] Added the call to ipc_recover_schedule on sys error and
watchdog timer
Change-Id: I5fcfc28bc424a47f95c32104d2200ad946ef9027
Signed-off-by: Fernando Guzman Lugo <fernando.lugo@ti.com>
Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
SYSLINK: Devh - Add userspace events unregistration support
Implement the unregister ioctl which lets an application unregister
an fd it had registered with the module earlier. The call returns
successfully even if no matching fd was present or duplicates were
present.
Also fixed traces because of addition of watch dog event.
Change-Id: Idd075c6a96a5c5438e02cfc1efa19d3e3859c0af
Signed-off-by: Wajahat Khan <w-khan@ti.com>
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