i915/gt/intel_rps.c

292 			rps->ips.m = cparams[i].m;
293 			rps->ips.c = cparams[i].c;
314 __ips_chipset_val(struct intel_ips *ips)
317 		rps_to_uncore(container_of(ips, struct intel_rps, ips));
330 	dt = now - ips->last_time1;
332 		return ips->chipset_power;
339 	delta = total - ips->last_count1;
341 	result = div_u64(div_u64(ips->m * delta, dt) + ips->c, 10);
343 	ips->last_count1 = total;
344 	ips->last_time1 = now;
346 	ips->chipset_power = result;
386 static void __gen5_ips_update(struct intel_ips *ips)
389 		rps_to_uncore(container_of(ips, struct intel_rps, ips));
396 	dt = now - ips->last_time2;
404 	delta = count - ips->last_count2;
406 	ips->last_count2 = count;
407 	ips->last_time2 = now;
410 	ips->gfx_power = div_u64(delta * 1181, dt * 10);
416 	__gen5_ips_update(&rps->ips);
423 	/* Invert the frequency bin into an ips delay */
444 	/* Invert the frequency bin into an ips delay */
601 	rps->ips.last_count1 = intel_uncore_read(uncore, DMIEC);
602 	rps->ips.last_count1 += intel_uncore_read(uncore, DDREC);
603 	rps->ips.last_count1 += intel_uncore_read(uncore, CSIEC);
604 	rps->ips.last_time1 = jiffies_to_msecs(jiffies);
606 	rps->ips.last_count2 = intel_uncore_read(uncore, GFXEC);
607 	rps->ips.last_time2 = ktime_get_raw_ns();
615 	rps->ips.corr = init_emon(uncore);
1476 static unsigned long __ips_gfx_val(struct intel_ips *ips)
1478 	struct intel_rps *rps = container_of(ips, typeof(*rps), ips);
1504 	corr2 = div_u64(corr, 100000) * ips->corr;
1509 	__gen5_ips_update(ips);
1511 	return ips->gfx_power + state2;
2739 	 * We only register the i915 ips part with intel-ips once everything is
2740 	 * set up, to avoid intel-ips sneaking in and reading bogus values.
2786 		struct intel_ips *ips = &to_gt(i915)->rps.ips;
2789 		chipset_val = __ips_chipset_val(ips);
2790 		graphics_val = __ips_gfx_val(ips);