| // SPDX-License-Identifier: MIT |
| /* |
| * Copyright(c) 2020 Intel Corporation. |
| */ |
| |
| #include "intel_pxp.h" |
| #include "intel_pxp_irq.h" |
| #include "intel_pxp_pm.h" |
| #include "intel_pxp_session.h" |
| |
| void intel_pxp_suspend(struct intel_pxp *pxp, bool runtime) |
| { |
| if (!intel_pxp_is_enabled(pxp)) |
| return; |
| |
| pxp->arb_is_valid = false; |
| |
| /* |
| * Contexts using protected objects keep a runtime PM reference, so we |
| * can only runtime suspend when all of them have been either closed |
| * or banned. Therefore, there is no need to invalidate in that |
| * scenario. |
| */ |
| if (!runtime) |
| intel_pxp_invalidate(pxp); |
| |
| intel_pxp_fini_hw(pxp); |
| |
| pxp->hw_state_invalidated = false; |
| } |
| |
| void intel_pxp_resume(struct intel_pxp *pxp) |
| { |
| if (!intel_pxp_is_enabled(pxp)) |
| return; |
| |
| /* |
| * The PXP component gets automatically unbound when we go into S3 and |
| * re-bound after we come out, so in that scenario we can defer the |
| * hw init to the bind call. |
| */ |
| if (!pxp->pxp_component) |
| return; |
| |
| intel_pxp_init_hw(pxp); |
| } |