1 // SPDX-License-Identifier: MIT
3 * Copyright © 2019 Intel Corporation
7 #include "intel_lrc_reg.h"
8 #include "intel_sseu.h"
10 void intel_sseu_set_info(struct sseu_dev_info *sseu, u8 max_slices,
11 u8 max_subslices, u8 max_eus_per_subslice)
13 sseu->max_slices = max_slices;
14 sseu->max_subslices = max_subslices;
15 sseu->max_eus_per_subslice = max_eus_per_subslice;
17 sseu->ss_stride = GEN_SSEU_STRIDE(sseu->max_subslices);
18 GEM_BUG_ON(sseu->ss_stride > GEN_MAX_SUBSLICE_STRIDE);
19 sseu->eu_stride = GEN_SSEU_STRIDE(sseu->max_eus_per_subslice);
20 GEM_BUG_ON(sseu->eu_stride > GEN_MAX_EU_STRIDE);
24 intel_sseu_subslice_total(const struct sseu_dev_info *sseu)
26 unsigned int i, total = 0;
28 for (i = 0; i < ARRAY_SIZE(sseu->subslice_mask); i++)
29 total += hweight8(sseu->subslice_mask[i]);
34 u32 intel_sseu_get_subslices(const struct sseu_dev_info *sseu, u8 slice)
36 int i, offset = slice * sseu->ss_stride;
39 GEM_BUG_ON(slice >= sseu->max_slices);
41 for (i = 0; i < sseu->ss_stride; i++)
42 mask |= (u32)sseu->subslice_mask[offset + i] <<
48 void intel_sseu_set_subslices(struct sseu_dev_info *sseu, int slice,
51 int offset = slice * sseu->ss_stride;
53 memcpy(&sseu->subslice_mask[offset], &ss_mask, sseu->ss_stride);
57 intel_sseu_subslices_per_slice(const struct sseu_dev_info *sseu, u8 slice)
59 return hweight32(intel_sseu_get_subslices(sseu, slice));
62 static int sseu_eu_idx(const struct sseu_dev_info *sseu, int slice,
65 int slice_stride = sseu->max_subslices * sseu->eu_stride;
67 return slice * slice_stride + subslice * sseu->eu_stride;
70 static u16 sseu_get_eus(const struct sseu_dev_info *sseu, int slice,
73 int i, offset = sseu_eu_idx(sseu, slice, subslice);
76 for (i = 0; i < sseu->eu_stride; i++)
78 ((u16)sseu->eu_mask[offset + i]) << (i * BITS_PER_BYTE);
83 static void sseu_set_eus(struct sseu_dev_info *sseu, int slice, int subslice,
86 int i, offset = sseu_eu_idx(sseu, slice, subslice);
88 for (i = 0; i < sseu->eu_stride; i++)
89 sseu->eu_mask[offset + i] =
90 (eu_mask >> (BITS_PER_BYTE * i)) & 0xff;
93 static u16 compute_eu_total(const struct sseu_dev_info *sseu)
97 for (i = 0; i < ARRAY_SIZE(sseu->eu_mask); i++)
98 total += hweight8(sseu->eu_mask[i]);
103 static void gen11_compute_sseu_info(struct sseu_dev_info *sseu,
104 u8 s_en, u32 ss_en, u16 eu_en)
108 /* ss_en represents entire subslice mask across all slices */
109 GEM_BUG_ON(sseu->max_slices * sseu->max_subslices >
110 sizeof(ss_en) * BITS_PER_BYTE);
112 for (s = 0; s < sseu->max_slices; s++) {
113 if ((s_en & BIT(s)) == 0)
116 sseu->slice_mask |= BIT(s);
118 intel_sseu_set_subslices(sseu, s, ss_en);
120 for (ss = 0; ss < sseu->max_subslices; ss++)
121 if (intel_sseu_has_subslice(sseu, s, ss))
122 sseu_set_eus(sseu, s, ss, eu_en);
124 sseu->eu_per_subslice = hweight16(eu_en);
125 sseu->eu_total = compute_eu_total(sseu);
128 static void gen12_sseu_info_init(struct intel_gt *gt)
130 struct sseu_dev_info *sseu = >->info.sseu;
131 struct intel_uncore *uncore = gt->uncore;
139 * Gen12 has Dual-Subslices, which behave similarly to 2 gen11 SS.
140 * Instead of splitting these, provide userspace with an array
141 * of DSS to more closely represent the hardware resource.
143 intel_sseu_set_info(sseu, 1, 6, 16);
145 s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
148 dss_en = intel_uncore_read(uncore, GEN12_GT_DSS_ENABLE);
150 /* one bit per pair of EUs */
151 eu_en_fuse = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
153 for (eu = 0; eu < sseu->max_eus_per_subslice / 2; eu++)
154 if (eu_en_fuse & BIT(eu))
155 eu_en |= BIT(eu * 2) | BIT(eu * 2 + 1);
157 gen11_compute_sseu_info(sseu, s_en, dss_en, eu_en);
159 /* TGL only supports slice-level power gating */
160 sseu->has_slice_pg = 1;
163 static void gen11_sseu_info_init(struct intel_gt *gt)
165 struct sseu_dev_info *sseu = >->info.sseu;
166 struct intel_uncore *uncore = gt->uncore;
171 if (IS_JSL_EHL(gt->i915))
172 intel_sseu_set_info(sseu, 1, 4, 8);
174 intel_sseu_set_info(sseu, 1, 8, 8);
176 s_en = intel_uncore_read(uncore, GEN11_GT_SLICE_ENABLE) &
178 ss_en = ~intel_uncore_read(uncore, GEN11_GT_SUBSLICE_DISABLE);
180 eu_en = ~(intel_uncore_read(uncore, GEN11_EU_DISABLE) &
183 gen11_compute_sseu_info(sseu, s_en, ss_en, eu_en);
185 /* ICL has no power gating restrictions. */
186 sseu->has_slice_pg = 1;
187 sseu->has_subslice_pg = 1;
191 static void gen10_sseu_info_init(struct intel_gt *gt)
193 struct intel_uncore *uncore = gt->uncore;
194 struct sseu_dev_info *sseu = >->info.sseu;
195 const u32 fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
196 const int eu_mask = 0xff;
197 u32 subslice_mask, eu_en;
200 intel_sseu_set_info(sseu, 6, 4, 8);
202 sseu->slice_mask = (fuse2 & GEN10_F2_S_ENA_MASK) >>
203 GEN10_F2_S_ENA_SHIFT;
206 eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE0);
207 for (ss = 0; ss < sseu->max_subslices; ss++)
208 sseu_set_eus(sseu, 0, ss, (eu_en >> (8 * ss)) & eu_mask);
210 sseu_set_eus(sseu, 1, 0, (eu_en >> 24) & eu_mask);
211 eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE1);
212 sseu_set_eus(sseu, 1, 1, eu_en & eu_mask);
214 sseu_set_eus(sseu, 2, 0, (eu_en >> 8) & eu_mask);
215 sseu_set_eus(sseu, 2, 1, (eu_en >> 16) & eu_mask);
217 sseu_set_eus(sseu, 3, 0, (eu_en >> 24) & eu_mask);
218 eu_en = ~intel_uncore_read(uncore, GEN8_EU_DISABLE2);
219 sseu_set_eus(sseu, 3, 1, eu_en & eu_mask);
221 sseu_set_eus(sseu, 4, 0, (eu_en >> 8) & eu_mask);
222 sseu_set_eus(sseu, 4, 1, (eu_en >> 16) & eu_mask);
224 sseu_set_eus(sseu, 5, 0, (eu_en >> 24) & eu_mask);
225 eu_en = ~intel_uncore_read(uncore, GEN10_EU_DISABLE3);
226 sseu_set_eus(sseu, 5, 1, eu_en & eu_mask);
228 subslice_mask = (1 << 4) - 1;
229 subslice_mask &= ~((fuse2 & GEN10_F2_SS_DIS_MASK) >>
230 GEN10_F2_SS_DIS_SHIFT);
232 for (s = 0; s < sseu->max_slices; s++) {
233 u32 subslice_mask_with_eus = subslice_mask;
235 for (ss = 0; ss < sseu->max_subslices; ss++) {
236 if (sseu_get_eus(sseu, s, ss) == 0)
237 subslice_mask_with_eus &= ~BIT(ss);
241 * Slice0 can have up to 3 subslices, but there are only 2 in
244 intel_sseu_set_subslices(sseu, s, s == 0 ?
245 subslice_mask_with_eus :
246 subslice_mask_with_eus & 0x3);
249 sseu->eu_total = compute_eu_total(sseu);
252 * CNL is expected to always have a uniform distribution
253 * of EU across subslices with the exception that any one
254 * EU in any one subslice may be fused off for die
257 sseu->eu_per_subslice =
258 intel_sseu_subslice_total(sseu) ?
259 DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
262 /* No restrictions on Power Gating */
263 sseu->has_slice_pg = 1;
264 sseu->has_subslice_pg = 1;
268 static void cherryview_sseu_info_init(struct intel_gt *gt)
270 struct sseu_dev_info *sseu = >->info.sseu;
272 u8 subslice_mask = 0;
274 fuse = intel_uncore_read(gt->uncore, CHV_FUSE_GT);
276 sseu->slice_mask = BIT(0);
277 intel_sseu_set_info(sseu, 1, 2, 8);
279 if (!(fuse & CHV_FGT_DISABLE_SS0)) {
281 ((fuse & CHV_FGT_EU_DIS_SS0_R0_MASK) >>
282 CHV_FGT_EU_DIS_SS0_R0_SHIFT) |
283 (((fuse & CHV_FGT_EU_DIS_SS0_R1_MASK) >>
284 CHV_FGT_EU_DIS_SS0_R1_SHIFT) << 4);
286 subslice_mask |= BIT(0);
287 sseu_set_eus(sseu, 0, 0, ~disabled_mask);
290 if (!(fuse & CHV_FGT_DISABLE_SS1)) {
292 ((fuse & CHV_FGT_EU_DIS_SS1_R0_MASK) >>
293 CHV_FGT_EU_DIS_SS1_R0_SHIFT) |
294 (((fuse & CHV_FGT_EU_DIS_SS1_R1_MASK) >>
295 CHV_FGT_EU_DIS_SS1_R1_SHIFT) << 4);
297 subslice_mask |= BIT(1);
298 sseu_set_eus(sseu, 0, 1, ~disabled_mask);
301 intel_sseu_set_subslices(sseu, 0, subslice_mask);
303 sseu->eu_total = compute_eu_total(sseu);
306 * CHV expected to always have a uniform distribution of EU
309 sseu->eu_per_subslice = intel_sseu_subslice_total(sseu) ?
311 intel_sseu_subslice_total(sseu) :
314 * CHV supports subslice power gating on devices with more than
315 * one subslice, and supports EU power gating on devices with
316 * more than one EU pair per subslice.
318 sseu->has_slice_pg = 0;
319 sseu->has_subslice_pg = intel_sseu_subslice_total(sseu) > 1;
320 sseu->has_eu_pg = (sseu->eu_per_subslice > 2);
323 static void gen9_sseu_info_init(struct intel_gt *gt)
325 struct drm_i915_private *i915 = gt->i915;
326 struct intel_device_info *info = mkwrite_device_info(i915);
327 struct sseu_dev_info *sseu = >->info.sseu;
328 struct intel_uncore *uncore = gt->uncore;
329 u32 fuse2, eu_disable, subslice_mask;
330 const u8 eu_mask = 0xff;
333 fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
334 sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
336 /* BXT has a single slice and at most 3 subslices. */
337 intel_sseu_set_info(sseu, IS_GEN9_LP(i915) ? 1 : 3,
338 IS_GEN9_LP(i915) ? 3 : 4, 8);
341 * The subslice disable field is global, i.e. it applies
342 * to each of the enabled slices.
344 subslice_mask = (1 << sseu->max_subslices) - 1;
345 subslice_mask &= ~((fuse2 & GEN9_F2_SS_DIS_MASK) >>
346 GEN9_F2_SS_DIS_SHIFT);
349 * Iterate through enabled slices and subslices to
350 * count the total enabled EU.
352 for (s = 0; s < sseu->max_slices; s++) {
353 if (!(sseu->slice_mask & BIT(s)))
354 /* skip disabled slice */
357 intel_sseu_set_subslices(sseu, s, subslice_mask);
359 eu_disable = intel_uncore_read(uncore, GEN9_EU_DISABLE(s));
360 for (ss = 0; ss < sseu->max_subslices; ss++) {
364 if (!intel_sseu_has_subslice(sseu, s, ss))
365 /* skip disabled subslice */
368 eu_disabled_mask = (eu_disable >> (ss * 8)) & eu_mask;
370 sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
372 eu_per_ss = sseu->max_eus_per_subslice -
373 hweight8(eu_disabled_mask);
376 * Record which subslice(s) has(have) 7 EUs. we
377 * can tune the hash used to spread work among
378 * subslices if they are unbalanced.
381 sseu->subslice_7eu[s] |= BIT(ss);
385 sseu->eu_total = compute_eu_total(sseu);
388 * SKL is expected to always have a uniform distribution
389 * of EU across subslices with the exception that any one
390 * EU in any one subslice may be fused off for die
391 * recovery. BXT is expected to be perfectly uniform in EU
394 sseu->eu_per_subslice =
395 intel_sseu_subslice_total(sseu) ?
396 DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
400 * SKL+ supports slice power gating on devices with more than
401 * one slice, and supports EU power gating on devices with
402 * more than one EU pair per subslice. BXT+ supports subslice
403 * power gating on devices with more than one subslice, and
404 * supports EU power gating on devices with more than one EU
408 !IS_GEN9_LP(i915) && hweight8(sseu->slice_mask) > 1;
409 sseu->has_subslice_pg =
410 IS_GEN9_LP(i915) && intel_sseu_subslice_total(sseu) > 1;
411 sseu->has_eu_pg = sseu->eu_per_subslice > 2;
413 if (IS_GEN9_LP(i915)) {
414 #define IS_SS_DISABLED(ss) (!(sseu->subslice_mask[0] & BIT(ss)))
415 info->has_pooled_eu = hweight8(sseu->subslice_mask[0]) == 3;
417 sseu->min_eu_in_pool = 0;
418 if (info->has_pooled_eu) {
419 if (IS_SS_DISABLED(2) || IS_SS_DISABLED(0))
420 sseu->min_eu_in_pool = 3;
421 else if (IS_SS_DISABLED(1))
422 sseu->min_eu_in_pool = 6;
424 sseu->min_eu_in_pool = 9;
426 #undef IS_SS_DISABLED
430 static void bdw_sseu_info_init(struct intel_gt *gt)
432 struct sseu_dev_info *sseu = >->info.sseu;
433 struct intel_uncore *uncore = gt->uncore;
435 u32 fuse2, subslice_mask, eu_disable[3]; /* s_max */
436 u32 eu_disable0, eu_disable1, eu_disable2;
438 fuse2 = intel_uncore_read(uncore, GEN8_FUSE2);
439 sseu->slice_mask = (fuse2 & GEN8_F2_S_ENA_MASK) >> GEN8_F2_S_ENA_SHIFT;
440 intel_sseu_set_info(sseu, 3, 3, 8);
443 * The subslice disable field is global, i.e. it applies
444 * to each of the enabled slices.
446 subslice_mask = GENMASK(sseu->max_subslices - 1, 0);
447 subslice_mask &= ~((fuse2 & GEN8_F2_SS_DIS_MASK) >>
448 GEN8_F2_SS_DIS_SHIFT);
449 eu_disable0 = intel_uncore_read(uncore, GEN8_EU_DISABLE0);
450 eu_disable1 = intel_uncore_read(uncore, GEN8_EU_DISABLE1);
451 eu_disable2 = intel_uncore_read(uncore, GEN8_EU_DISABLE2);
452 eu_disable[0] = eu_disable0 & GEN8_EU_DIS0_S0_MASK;
453 eu_disable[1] = (eu_disable0 >> GEN8_EU_DIS0_S1_SHIFT) |
454 ((eu_disable1 & GEN8_EU_DIS1_S1_MASK) <<
455 (32 - GEN8_EU_DIS0_S1_SHIFT));
456 eu_disable[2] = (eu_disable1 >> GEN8_EU_DIS1_S2_SHIFT) |
457 ((eu_disable2 & GEN8_EU_DIS2_S2_MASK) <<
458 (32 - GEN8_EU_DIS1_S2_SHIFT));
461 * Iterate through enabled slices and subslices to
462 * count the total enabled EU.
464 for (s = 0; s < sseu->max_slices; s++) {
465 if (!(sseu->slice_mask & BIT(s)))
466 /* skip disabled slice */
469 intel_sseu_set_subslices(sseu, s, subslice_mask);
471 for (ss = 0; ss < sseu->max_subslices; ss++) {
475 if (!intel_sseu_has_subslice(sseu, s, ss))
476 /* skip disabled subslice */
480 eu_disable[s] >> (ss * sseu->max_eus_per_subslice);
482 sseu_set_eus(sseu, s, ss, ~eu_disabled_mask);
484 n_disabled = hweight8(eu_disabled_mask);
487 * Record which subslices have 7 EUs.
489 if (sseu->max_eus_per_subslice - n_disabled == 7)
490 sseu->subslice_7eu[s] |= 1 << ss;
494 sseu->eu_total = compute_eu_total(sseu);
497 * BDW is expected to always have a uniform distribution of EU across
498 * subslices with the exception that any one EU in any one subslice may
499 * be fused off for die recovery.
501 sseu->eu_per_subslice =
502 intel_sseu_subslice_total(sseu) ?
503 DIV_ROUND_UP(sseu->eu_total, intel_sseu_subslice_total(sseu)) :
507 * BDW supports slice power gating on devices with more than
510 sseu->has_slice_pg = hweight8(sseu->slice_mask) > 1;
511 sseu->has_subslice_pg = 0;
515 static void hsw_sseu_info_init(struct intel_gt *gt)
517 struct drm_i915_private *i915 = gt->i915;
518 struct sseu_dev_info *sseu = >->info.sseu;
520 u8 subslice_mask = 0;
524 * There isn't a register to tell us how many slices/subslices. We
525 * work off the PCI-ids here.
527 switch (INTEL_INFO(i915)->gt) {
529 MISSING_CASE(INTEL_INFO(i915)->gt);
532 sseu->slice_mask = BIT(0);
533 subslice_mask = BIT(0);
536 sseu->slice_mask = BIT(0);
537 subslice_mask = BIT(0) | BIT(1);
540 sseu->slice_mask = BIT(0) | BIT(1);
541 subslice_mask = BIT(0) | BIT(1);
545 fuse1 = intel_uncore_read(gt->uncore, HSW_PAVP_FUSE1);
546 switch ((fuse1 & HSW_F1_EU_DIS_MASK) >> HSW_F1_EU_DIS_SHIFT) {
548 MISSING_CASE((fuse1 & HSW_F1_EU_DIS_MASK) >>
549 HSW_F1_EU_DIS_SHIFT);
551 case HSW_F1_EU_DIS_10EUS:
552 sseu->eu_per_subslice = 10;
554 case HSW_F1_EU_DIS_8EUS:
555 sseu->eu_per_subslice = 8;
557 case HSW_F1_EU_DIS_6EUS:
558 sseu->eu_per_subslice = 6;
562 intel_sseu_set_info(sseu, hweight8(sseu->slice_mask),
563 hweight8(subslice_mask),
564 sseu->eu_per_subslice);
566 for (s = 0; s < sseu->max_slices; s++) {
567 intel_sseu_set_subslices(sseu, s, subslice_mask);
569 for (ss = 0; ss < sseu->max_subslices; ss++) {
570 sseu_set_eus(sseu, s, ss,
571 (1UL << sseu->eu_per_subslice) - 1);
575 sseu->eu_total = compute_eu_total(sseu);
577 /* No powergating for you. */
578 sseu->has_slice_pg = 0;
579 sseu->has_subslice_pg = 0;
583 void intel_sseu_info_init(struct intel_gt *gt)
585 struct drm_i915_private *i915 = gt->i915;
587 if (IS_HASWELL(i915))
588 hsw_sseu_info_init(gt);
589 else if (IS_CHERRYVIEW(i915))
590 cherryview_sseu_info_init(gt);
591 else if (IS_BROADWELL(i915))
592 bdw_sseu_info_init(gt);
593 else if (GRAPHICS_VER(i915) == 9)
594 gen9_sseu_info_init(gt);
595 else if (GRAPHICS_VER(i915) == 10)
596 gen10_sseu_info_init(gt);
597 else if (GRAPHICS_VER(i915) == 11)
598 gen11_sseu_info_init(gt);
599 else if (GRAPHICS_VER(i915) >= 12)
600 gen12_sseu_info_init(gt);
603 u32 intel_sseu_make_rpcs(struct intel_gt *gt,
604 const struct intel_sseu *req_sseu)
606 struct drm_i915_private *i915 = gt->i915;
607 const struct sseu_dev_info *sseu = >->info.sseu;
608 bool subslice_pg = sseu->has_subslice_pg;
609 u8 slices, subslices;
613 * No explicit RPCS request is needed to ensure full
614 * slice/subslice/EU enablement prior to Gen9.
616 if (GRAPHICS_VER(i915) < 9)
620 * If i915/perf is active, we want a stable powergating configuration
621 * on the system. Use the configuration pinned by i915/perf.
623 if (i915->perf.exclusive_stream)
624 req_sseu = &i915->perf.sseu;
626 slices = hweight8(req_sseu->slice_mask);
627 subslices = hweight8(req_sseu->subslice_mask);
630 * Since the SScount bitfield in GEN8_R_PWR_CLK_STATE is only three bits
631 * wide and Icelake has up to eight subslices, specfial programming is
632 * needed in order to correctly enable all subslices.
634 * According to documentation software must consider the configuration
635 * as 2x4x8 and hardware will translate this to 1x8x8.
637 * Furthemore, even though SScount is three bits, maximum documented
638 * value for it is four. From this some rules/restrictions follow:
641 * If enabled subslice count is greater than four, two whole slices must
642 * be enabled instead.
645 * When more than one slice is enabled, hardware ignores the subslice
648 * From these restrictions it follows that it is not possible to enable
649 * a count of subslices between the SScount maximum of four restriction,
650 * and the maximum available number on a particular SKU. Either all
651 * subslices are enabled, or a count between one and four on the first
654 if (GRAPHICS_VER(i915) == 11 &&
656 subslices > min_t(u8, 4, hweight8(sseu->subslice_mask[0]) / 2)) {
657 GEM_BUG_ON(subslices & 1);
664 * Starting in Gen9, render power gating can leave
665 * slice/subslice/EU in a partially enabled state. We
666 * must make an explicit request through RPCS for full
669 if (sseu->has_slice_pg) {
670 u32 mask, val = slices;
672 if (GRAPHICS_VER(i915) >= 11) {
673 mask = GEN11_RPCS_S_CNT_MASK;
674 val <<= GEN11_RPCS_S_CNT_SHIFT;
676 mask = GEN8_RPCS_S_CNT_MASK;
677 val <<= GEN8_RPCS_S_CNT_SHIFT;
680 GEM_BUG_ON(val & ~mask);
683 rpcs |= GEN8_RPCS_ENABLE | GEN8_RPCS_S_CNT_ENABLE | val;
689 val <<= GEN8_RPCS_SS_CNT_SHIFT;
691 GEM_BUG_ON(val & ~GEN8_RPCS_SS_CNT_MASK);
692 val &= GEN8_RPCS_SS_CNT_MASK;
694 rpcs |= GEN8_RPCS_ENABLE | GEN8_RPCS_SS_CNT_ENABLE | val;
697 if (sseu->has_eu_pg) {
700 val = req_sseu->min_eus_per_subslice << GEN8_RPCS_EU_MIN_SHIFT;
701 GEM_BUG_ON(val & ~GEN8_RPCS_EU_MIN_MASK);
702 val &= GEN8_RPCS_EU_MIN_MASK;
706 val = req_sseu->max_eus_per_subslice << GEN8_RPCS_EU_MAX_SHIFT;
707 GEM_BUG_ON(val & ~GEN8_RPCS_EU_MAX_MASK);
708 val &= GEN8_RPCS_EU_MAX_MASK;
712 rpcs |= GEN8_RPCS_ENABLE;
718 void intel_sseu_dump(const struct sseu_dev_info *sseu, struct drm_printer *p)
722 drm_printf(p, "slice total: %u, mask=%04x\n",
723 hweight8(sseu->slice_mask), sseu->slice_mask);
724 drm_printf(p, "subslice total: %u\n", intel_sseu_subslice_total(sseu));
725 for (s = 0; s < sseu->max_slices; s++) {
726 drm_printf(p, "slice%d: %u subslices, mask=%08x\n",
727 s, intel_sseu_subslices_per_slice(sseu, s),
728 intel_sseu_get_subslices(sseu, s));
730 drm_printf(p, "EU total: %u\n", sseu->eu_total);
731 drm_printf(p, "EU per subslice: %u\n", sseu->eu_per_subslice);
732 drm_printf(p, "has slice power gating: %s\n",
733 yesno(sseu->has_slice_pg));
734 drm_printf(p, "has subslice power gating: %s\n",
735 yesno(sseu->has_subslice_pg));
736 drm_printf(p, "has EU power gating: %s\n", yesno(sseu->has_eu_pg));
739 void intel_sseu_print_topology(const struct sseu_dev_info *sseu,
740 struct drm_printer *p)
744 if (sseu->max_slices == 0) {
745 drm_printf(p, "Unavailable\n");
749 for (s = 0; s < sseu->max_slices; s++) {
750 drm_printf(p, "slice%d: %u subslice(s) (0x%08x):\n",
751 s, intel_sseu_subslices_per_slice(sseu, s),
752 intel_sseu_get_subslices(sseu, s));
754 for (ss = 0; ss < sseu->max_subslices; ss++) {
755 u16 enabled_eus = sseu_get_eus(sseu, s, ss);
757 drm_printf(p, "\tsubslice%d: %u EUs (0x%hx)\n",
758 ss, hweight16(enabled_eus), enabled_eus);