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// SPDX-License-Identifier: MIT
/*
* Copyright © 2023 Intel Corporation
*/
#include <linux/dma-fence.h>
#include <drm/drm_crtc.h>
#include <drm/drm_vblank.h>
#include "intel_display_core.h"
#include "intel_display_regs.h"
#include "intel_display_irq.h"
#include "intel_display_rps.h"
#include "intel_display_types.h"
#include "intel_parent.h"
struct wait_rps_boost {
struct wait_queue_entry wait;
struct drm_crtc *crtc;
struct dma_fence *fence;
};
static int do_rps_boost(struct wait_queue_entry *_wait,
unsigned mode, int sync, void *key)
{
struct wait_rps_boost *wait = container_of(_wait, typeof(*wait), wait);
struct intel_display *display = to_intel_display(wait->crtc->dev);
/*
* If we missed the vblank, but the request is already running it
* is reasonable to assume that it will complete before the next
* vblank without our intervention, so leave RPS alone if not started.
*/
intel_parent_rps_boost_if_not_started(display, wait->fence);
dma_fence_put(wait->fence);
drm_crtc_vblank_put(wait->crtc);
list_del(&wait->wait.entry);
kfree(wait);
return 1;
}
void intel_display_rps_boost_after_vblank(struct drm_crtc *crtc,
struct dma_fence *fence)
{
struct intel_display *display = to_intel_display(crtc->dev);
struct wait_rps_boost *wait;
if (!intel_parent_rps_available(display))
return;
if (DISPLAY_VER(display) < 6)
return;
if (drm_crtc_vblank_get(crtc))
return;
wait = kmalloc_obj(*wait);
if (!wait) {
drm_crtc_vblank_put(crtc);
return;
}
wait->fence = dma_fence_get(fence);
wait->crtc = crtc;
wait->wait.func = do_rps_boost;
wait->wait.flags = 0;
add_wait_queue(drm_crtc_vblank_waitqueue(crtc), &wait->wait);
}
void intel_display_rps_mark_interactive(struct intel_display *display,
struct intel_atomic_state *state,
bool interactive)
{
if (!intel_parent_rps_available(display))
return;
if (state->rps_interactive == interactive)
return;
intel_parent_rps_mark_interactive(display, interactive);
state->rps_interactive = interactive;
}
void ilk_display_rps_enable(struct intel_display *display)
{
spin_lock(&display->irq.lock);
ilk_enable_display_irq(display, DE_PCU_EVENT);
spin_unlock(&display->irq.lock);
}
void ilk_display_rps_disable(struct intel_display *display)
{
spin_lock(&display->irq.lock);
ilk_disable_display_irq(display, DE_PCU_EVENT);
spin_unlock(&display->irq.lock);
}
void ilk_display_rps_irq_handler(struct intel_display *display)
{
intel_parent_rps_ilk_irq_handler(display);
}
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