Commit 875bc9cd authored by Jacek Lawrynowicz's avatar Jacek Lawrynowicz
Browse files

accel/ivpu: Put NPU back to D3hot after failed resume 



Put NPU in D3hot after ivpu_resume() fails to power up the device.
This will assure that D3->D0 power cycle will be performed before
the next resume and also will minimize power usage in this corner case.

Fixes: 28083ff1 ("accel/ivpu: Fix DevTLB errors on suspend/resume and recovery")
Cc: <stable@vger.kernel.org> # v6.8+
Signed-off-by: default avatarJacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: default avatarJeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240402104929.941186-5-jacek.lawrynowicz@linux.intel.com
parent 3534eacb

drivers/accel/ivpu/ivpu_pm.c

+1 −0
Original line number Diff line number Diff line
@@ -97,6 +97,7 @@ static int ivpu_resume(struct ivpu_device *vdev) 
	ivpu_mmu_disable(vdev);

err_power_down:

	ivpu_hw_power_down(vdev);

	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);



	if (!ivpu_fw_is_cold_boot(vdev)) {

		ivpu_pm_prepare_cold_boot(vdev);