21  * Lock protecting IPS related data structures
280 			rps->ips.m = cparams[i].m;  in gen5_rps_init()
281 			rps->ips.c = cparams[i].c;  in gen5_rps_init()
302 __ips_chipset_val(struct intel_ips *ips)  in __ips_chipset_val()  argument
305 		rps_to_uncore(container_of(ips, struct intel_rps, ips));  in __ips_chipset_val()
318 	dt = now - ips->last_time1;  in __ips_chipset_val()
320 		return ips->chipset_power;  in __ips_chipset_val()
327 	delta = total - ips->last_count1;  in __ips_chipset_val()
329 	result = div_u64(div_u64(ips->m * delta, dt) + ips->c, 10);  in __ips_chipset_val()
331 	ips->last_count1 = total;  in __ips_chipset_val()
332 	ips->last_time1 = now;  in __ips_chipset_val()
334 	ips->chipset_power = result;  in __ips_chipset_val()
374 static void __gen5_ips_update(struct intel_ips *ips)  in __gen5_ips_update()  argument
377 		rps_to_uncore(container_of(ips, struct intel_rps, ips));  in __gen5_ips_update()
384 	dt = now - ips->last_time2;  in __gen5_ips_update()
392 	delta = count - ips->last_count2;  in __gen5_ips_update()
394 	ips->last_count2 = count;  in __gen5_ips_update()
395 	ips->last_time2 = now;  in __gen5_ips_update()
398 	ips->gfx_power = div_u64(delta * 1181, dt * 10);  in __gen5_ips_update()
404 	__gen5_ips_update(&rps->ips);  in gen5_rps_update()
411 	/* Invert the frequency bin into an ips delay */  in gen5_invert_freq()
431 	/* Invert the frequency bin into an ips delay */  in __gen5_rps_set()
588 	rps->ips.last_count1 = intel_uncore_read(uncore, DMIEC);  in gen5_rps_enable()
589 	rps->ips.last_count1 += intel_uncore_read(uncore, DDREC);  in gen5_rps_enable()
590 	rps->ips.last_count1 += intel_uncore_read(uncore, CSIEC);  in gen5_rps_enable()
591 	rps->ips.last_time1 = jiffies_to_msecs(jiffies);  in gen5_rps_enable()
593 	rps->ips.last_count2 = intel_uncore_read(uncore, GFXEC);  in gen5_rps_enable()
594 	rps->ips.last_time2 = ktime_get_raw_ns();  in gen5_rps_enable()
602 	rps->ips.corr = init_emon(uncore);  in gen5_rps_enable()
1318 static unsigned long __ips_gfx_val(struct intel_ips *ips)  in __ips_gfx_val()  argument
1320 	struct intel_rps *rps = container_of(ips, typeof(*rps), ips);  in __ips_gfx_val()
1346 	corr2 = div_u64(corr, 100000) * ips->corr;  in __ips_gfx_val()
1351 	__gen5_ips_update(ips);  in __ips_gfx_val()
1353 	return ips->gfx_power + state2;  in __ips_gfx_val()
2153  * IPS got loaded first.
2156  * other in order for IPS to do the appropriate communication of
2176 	 * We only register the i915 ips part with intel-ips once everything is  in intel_rps_driver_register()
2177 	 * set up, to avoid intel-ips sneaking in and reading bogus values.  in intel_rps_driver_register()
2206  * i915_read_mch_val - return value for IPS use
2208  * Calculate and return a value for the IPS driver to use when deciding whether
2223 		struct intel_ips *ips = &i915->gt.rps.ips;  in i915_read_mch_val()  local
2226 		chipset_val = __ips_chipset_val(ips);  in i915_read_mch_val()
2227 		graphics_val = __ips_gfx_val(ips);  in i915_read_mch_val()
2239  * Raise the limit; IPS indicates we have thermal headroom.
2265  * IPS indicates we're close to a thermal limit, so throttle back the GPU
2290  * i915_gpu_busy - indicate GPU business to IPS
2292  * Tell the IPS driver whether or not the GPU is busy.