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accel/ivpu: Dump MMU events in case of VPU boot timeout

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Add ivpu_mmu_evtq_dump() function that dumps existing MMU events from
MMU event queue. Call this function if VPU boot failed.

Previously MMU events were only checked in interrupt handler, but if VPU
failed to boot due to MMU faults, those faults were missed because of
interrupts not yet being enabled. This will allow checking potential
fault reason of VPU not booting.

Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240115134434.493839-2-jacek.lawrynowicz@linux.intel.com
This commit is contained in:
Wachowski, Karol 2024-01-15 14:44:26 +01:00 committed by Jacek Lawrynowicz
parent cf79f291f9
commit 30cf36bb04
3 changed files with 10 additions and 0 deletions
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1
drivers/accel/ivpu/ivpu_drv.c
View file

@ -369,6 +369,7 @@ int ivpu_boot(struct ivpu_device *vdev)
ret = ivpu_wait_for_ready(vdev);
if (ret) {
ivpu_err(vdev, "Failed to boot the firmware: %d\n", ret);
ivpu_mmu_evtq_dump(vdev);
return ret;
}

8
drivers/accel/ivpu/ivpu_mmu.c
View file

@ -905,6 +905,14 @@ void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev)
ivpu_pm_schedule_recovery(vdev);
}
void ivpu_mmu_evtq_dump(struct ivpu_device *vdev)
{
u32 *event;
while ((event = ivpu_mmu_get_event(vdev)) != NULL)
ivpu_mmu_dump_event(vdev, event);
}
void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev)
{
u32 gerror_val, gerrorn_val, active;

1
drivers/accel/ivpu/ivpu_mmu.h
View file

@ -46,5 +46,6 @@ int ivpu_mmu_invalidate_tlb(struct ivpu_device *vdev, u16 ssid);
void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev);
void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev);
void ivpu_mmu_evtq_dump(struct ivpu_device *vdev);
#endif /* __IVPU_MMU_H__ */