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// SPDX-License-Identifier: MIT
/*
* Copyright(c) 2020 Intel Corporation.
*/
#include "i915_drv.h"
#include "intel_pxp.h"
#include "intel_pxp_irq.h"
#include "intel_pxp_pm.h"
#include "intel_pxp_session.h"
#include "intel_pxp_types.h"
void intel_pxp_suspend_prepare(struct intel_pxp *pxp)
{
if (!intel_pxp_is_enabled(pxp))
return;
intel_pxp_end(pxp);
intel_pxp_invalidate(pxp);
}
void intel_pxp_suspend(struct intel_pxp *pxp)
{
intel_wakeref_t wakeref;
if (!intel_pxp_is_enabled(pxp))
return;
with_intel_runtime_pm(&pxp->ctrl_gt->i915->runtime_pm, wakeref) {
intel_pxp_fini_hw(pxp);
pxp->hw_state_invalidated = false;
}
}
static void _pxp_resume(struct intel_pxp *pxp, bool take_wakeref)
{
intel_wakeref_t wakeref;
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.
* NOTE: GSC-CS backend doesn't rely on components.
*/
if (!HAS_ENGINE(pxp->ctrl_gt, GSC0) && !pxp->pxp_component)
return;
if (take_wakeref)
wakeref = intel_runtime_pm_get(&pxp->ctrl_gt->i915->runtime_pm);
intel_pxp_init_hw(pxp);
if (take_wakeref)
intel_runtime_pm_put(&pxp->ctrl_gt->i915->runtime_pm, wakeref);
}
void intel_pxp_resume_complete(struct intel_pxp *pxp)
{
_pxp_resume(pxp, true);
}
void intel_pxp_runtime_resume(struct intel_pxp *pxp)
{
_pxp_resume(pxp, false);
}
void intel_pxp_runtime_suspend(struct intel_pxp *pxp)
{
if (!intel_pxp_is_enabled(pxp))
return;
pxp->arb_is_valid = false;
intel_pxp_fini_hw(pxp);
pxp->hw_state_invalidated = false;
}
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