mirror of
https://github.com/torvalds/linux.git
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f09812b85f
Sync with v7.0-rc1 which contains a few treewide changes affecting i915. Signed-off-by: Jani Nikula <jani.nikula@intel.com>
110 lines
2.5 KiB
C
110 lines
2.5 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2023 Intel Corporation
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*/
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#include <linux/dma-fence.h>
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#include <drm/drm_crtc.h>
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#include <drm/drm_vblank.h>
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#include "intel_display_core.h"
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#include "intel_display_regs.h"
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#include "intel_display_irq.h"
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#include "intel_display_rps.h"
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#include "intel_display_types.h"
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#include "intel_parent.h"
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struct wait_rps_boost {
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struct wait_queue_entry wait;
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struct drm_crtc *crtc;
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struct dma_fence *fence;
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};
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static int do_rps_boost(struct wait_queue_entry *_wait,
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unsigned mode, int sync, void *key)
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{
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struct wait_rps_boost *wait = container_of(_wait, typeof(*wait), wait);
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struct intel_display *display = to_intel_display(wait->crtc->dev);
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/*
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* If we missed the vblank, but the request is already running it
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* is reasonable to assume that it will complete before the next
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* vblank without our intervention, so leave RPS alone if not started.
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*/
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intel_parent_rps_boost_if_not_started(display, wait->fence);
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dma_fence_put(wait->fence);
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drm_crtc_vblank_put(wait->crtc);
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list_del(&wait->wait.entry);
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kfree(wait);
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return 1;
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}
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void intel_display_rps_boost_after_vblank(struct drm_crtc *crtc,
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struct dma_fence *fence)
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{
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struct intel_display *display = to_intel_display(crtc->dev);
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struct wait_rps_boost *wait;
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if (!intel_parent_rps_available(display))
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return;
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if (DISPLAY_VER(display) < 6)
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return;
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if (drm_crtc_vblank_get(crtc))
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return;
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wait = kmalloc_obj(*wait);
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if (!wait) {
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drm_crtc_vblank_put(crtc);
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return;
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}
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wait->fence = dma_fence_get(fence);
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wait->crtc = crtc;
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wait->wait.func = do_rps_boost;
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wait->wait.flags = 0;
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add_wait_queue(drm_crtc_vblank_waitqueue(crtc), &wait->wait);
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}
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void intel_display_rps_mark_interactive(struct intel_display *display,
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struct intel_atomic_state *state,
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bool interactive)
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{
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if (!intel_parent_rps_available(display))
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return;
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if (state->rps_interactive == interactive)
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return;
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intel_parent_rps_mark_interactive(display, interactive);
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state->rps_interactive = interactive;
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}
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void ilk_display_rps_enable(struct intel_display *display)
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{
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spin_lock(&display->irq.lock);
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ilk_enable_display_irq(display, DE_PCU_EVENT);
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spin_unlock(&display->irq.lock);
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}
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void ilk_display_rps_disable(struct intel_display *display)
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{
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spin_lock(&display->irq.lock);
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ilk_disable_display_irq(display, DE_PCU_EVENT);
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spin_unlock(&display->irq.lock);
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}
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void ilk_display_rps_irq_handler(struct intel_display *display)
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{
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intel_parent_rps_ilk_irq_handler(display);
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}
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