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1// SPDX-License-Identifier: MIT2/*3 * Copyright © 2023 Intel Corporation4 */5 6#include <drm/drm_crtc.h>7#include <drm/drm_vblank.h>8 9#include "gt/intel_rps.h"10#include "i915_drv.h"11#include "intel_display_rps.h"12#include "intel_display_types.h"13 14struct wait_rps_boost {15 struct wait_queue_entry wait;16 17 struct drm_crtc *crtc;18 struct i915_request *request;19};20 21static int do_rps_boost(struct wait_queue_entry *_wait,22 unsigned mode, int sync, void *key)23{24 struct wait_rps_boost *wait = container_of(_wait, typeof(*wait), wait);25 struct i915_request *rq = wait->request;26 27 /*28 * If we missed the vblank, but the request is already running it29 * is reasonable to assume that it will complete before the next30 * vblank without our intervention, so leave RPS alone.31 */32 if (!i915_request_started(rq))33 intel_rps_boost(rq);34 i915_request_put(rq);35 36 drm_crtc_vblank_put(wait->crtc);37 38 list_del(&wait->wait.entry);39 kfree(wait);40 return 1;41}42 43void intel_display_rps_boost_after_vblank(struct drm_crtc *crtc,44 struct dma_fence *fence)45{46 struct wait_rps_boost *wait;47 48 if (!dma_fence_is_i915(fence))49 return;50 51 if (DISPLAY_VER(to_i915(crtc->dev)) < 6)52 return;53 54 if (drm_crtc_vblank_get(crtc))55 return;56 57 wait = kmalloc(sizeof(*wait), GFP_KERNEL);58 if (!wait) {59 drm_crtc_vblank_put(crtc);60 return;61 }62 63 wait->request = to_request(dma_fence_get(fence));64 wait->crtc = crtc;65 66 wait->wait.func = do_rps_boost;67 wait->wait.flags = 0;68 69 add_wait_queue(drm_crtc_vblank_waitqueue(crtc), &wait->wait);70}71 72void intel_display_rps_mark_interactive(struct drm_i915_private *i915,73 struct intel_atomic_state *state,74 bool interactive)75{76 if (state->rps_interactive == interactive)77 return;78 79 intel_rps_mark_interactive(&to_gt(i915)->rps, interactive);80 state->rps_interactive = interactive;81}82