linux/drivers/gpu/drm/i915/gt/intel_engine_pm.c

// SPDX-License-Identifier: MIT
/*
 * Copyright © 2019 Intel Corporation
 */

#include "i915_drv.h"

#include "intel_breadcrumbs.h"
#include "intel_context.h"
#include "intel_engine.h"
#include "intel_engine_heartbeat.h"
#include "intel_engine_pm.h"
#include "intel_gt.h"
#include "intel_gt_pm.h"
#include "intel_rc6.h"
#include "intel_ring.h"
#include "shmem_utils.h"
#include "intel_gt_regs.h"

static void intel_gsc_idle_msg_enable(struct intel_engine_cs *engine)
{ … }

static void dbg_poison_ce(struct intel_context *ce)
{ … }

static int __engine_unpark(struct intel_wakeref *wf)
{ … }

static void duration(struct dma_fence *fence, struct dma_fence_cb *cb)
{ … }

static void
__queue_and_release_pm(struct i915_request *rq,
		       struct intel_timeline *tl,
		       struct intel_engine_cs *engine)
{ … }

static bool switch_to_kernel_context(struct intel_engine_cs *engine)
{ … }

static void call_idle_barriers(struct intel_engine_cs *engine)
{ … }

static int __engine_park(struct intel_wakeref *wf)
{ … }

static const struct intel_wakeref_ops wf_ops = …;

void intel_engine_init__pm(struct intel_engine_cs *engine)
{ … }

/**
 * intel_engine_reset_pinned_contexts - Reset the pinned contexts of
 * an engine.
 * @engine: The engine whose pinned contexts we want to reset.
 *
 * Typically the pinned context LMEM images lose or get their content
 * corrupted on suspend. This function resets their images.
 */
void intel_engine_reset_pinned_contexts(struct intel_engine_cs *engine)
{ … }

#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST)
#include "selftest_engine_pm.c"
#endif