2 * Copyright 2010 Red Hat Inc.
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
26 #include "nouveau_drm.h"
27 #include "nouveau_bios.h"
28 #include "nouveau_hw.h"
29 #include "nouveau_pm.h"
30 #include "nouveau_hwsq.h"
32 #include "nv50_display.h"
34 #include <subdev/bios/pll.h>
35 #include <subdev/clock.h>
36 #include <subdev/timer.h>
37 #include <subdev/fb.h>
53 static u32 read_clk(struct drm_device *, enum clk_src);
56 read_div(struct drm_device *dev)
58 struct nouveau_device *device = nouveau_dev(dev);
59 struct nouveau_drm *drm = nouveau_drm(dev);
61 switch (nv_device(drm->device)->chipset) {
62 case 0x50: /* it exists, but only has bit 31, not the dividers.. */
67 return nv_rd32(device, 0x004700);
71 return nv_rd32(device, 0x004800);
78 read_pll_src(struct drm_device *dev, u32 base)
80 struct nouveau_device *device = nouveau_dev(dev);
81 struct nouveau_drm *drm = nouveau_drm(dev);
82 u32 coef, ref = read_clk(dev, clk_src_crystal);
83 u32 rsel = nv_rd32(device, 0x00e18c);
86 switch (nv_device(drm->device)->chipset) {
91 case 0x4028: id = !!(rsel & 0x00000004); break;
92 case 0x4008: id = !!(rsel & 0x00000008); break;
93 case 0x4030: id = 0; break;
95 NV_ERROR(drm, "ref: bad pll 0x%06x\n", base);
99 coef = nv_rd32(device, 0x00e81c + (id * 0x0c));
100 ref *= (coef & 0x01000000) ? 2 : 4;
101 P = (coef & 0x00070000) >> 16;
102 N = ((coef & 0x0000ff00) >> 8) + 1;
103 M = ((coef & 0x000000ff) >> 0) + 1;
108 coef = nv_rd32(device, 0x00e81c);
109 P = (coef & 0x00070000) >> 16;
110 N = (coef & 0x0000ff00) >> 8;
111 M = (coef & 0x000000ff) >> 0;
116 rsel = nv_rd32(device, 0x00c050);
118 case 0x4020: rsel = (rsel & 0x00000003) >> 0; break;
119 case 0x4008: rsel = (rsel & 0x0000000c) >> 2; break;
120 case 0x4028: rsel = (rsel & 0x00001800) >> 11; break;
121 case 0x4030: rsel = 3; break;
123 NV_ERROR(drm, "ref: bad pll 0x%06x\n", base);
128 case 0: id = 1; break;
129 case 1: return read_clk(dev, clk_src_crystal);
130 case 2: return read_clk(dev, clk_src_href);
131 case 3: id = 0; break;
134 coef = nv_rd32(device, 0x00e81c + (id * 0x28));
135 P = (nv_rd32(device, 0x00e824 + (id * 0x28)) >> 16) & 7;
136 P += (coef & 0x00070000) >> 16;
137 N = (coef & 0x0000ff00) >> 8;
138 M = (coef & 0x000000ff) >> 0;
145 return (ref * N / M) >> P;
150 read_pll_ref(struct drm_device *dev, u32 base)
152 struct nouveau_device *device = nouveau_dev(dev);
153 struct nouveau_drm *drm = nouveau_drm(dev);
154 u32 src, mast = nv_rd32(device, 0x00c040);
158 src = !!(mast & 0x00200000);
161 src = !!(mast & 0x00400000);
164 src = !!(mast & 0x00010000);
167 src = !!(mast & 0x02000000);
170 return read_clk(dev, clk_src_crystal);
172 NV_ERROR(drm, "bad pll 0x%06x\n", base);
177 return read_clk(dev, clk_src_href);
178 return read_pll_src(dev, base);
182 read_pll(struct drm_device *dev, u32 base)
184 struct nouveau_device *device = nouveau_dev(dev);
185 struct nouveau_drm *drm = nouveau_drm(dev);
186 u32 mast = nv_rd32(device, 0x00c040);
187 u32 ctrl = nv_rd32(device, base + 0);
188 u32 coef = nv_rd32(device, base + 4);
189 u32 ref = read_pll_ref(dev, base);
193 if (base == 0x004028 && (mast & 0x00100000)) {
194 /* wtf, appears to only disable post-divider on nva0 */
195 if (nv_device(drm->device)->chipset != 0xa0)
196 return read_clk(dev, clk_src_dom6);
199 N2 = (coef & 0xff000000) >> 24;
200 M2 = (coef & 0x00ff0000) >> 16;
201 N1 = (coef & 0x0000ff00) >> 8;
202 M1 = (coef & 0x000000ff);
203 if ((ctrl & 0x80000000) && M1) {
205 if ((ctrl & 0x40000100) == 0x40000000) {
217 read_clk(struct drm_device *dev, enum clk_src src)
219 struct nouveau_device *device = nouveau_dev(dev);
220 struct nouveau_drm *drm = nouveau_drm(dev);
221 u32 mast = nv_rd32(device, 0x00c040);
225 case clk_src_crystal:
226 return device->crystal;
228 return 100000; /* PCIE reference clock */
230 return read_clk(dev, clk_src_href) * 27778 / 10000;
232 return read_clk(dev, clk_src_hclk) * 3;
233 case clk_src_hclkm3d2:
234 return read_clk(dev, clk_src_hclk) * 3 / 2;
236 switch (mast & 0x30000000) {
237 case 0x00000000: return read_clk(dev, clk_src_href);
238 case 0x10000000: break;
239 case 0x20000000: /* !0x50 */
240 case 0x30000000: return read_clk(dev, clk_src_hclk);
244 if (!(mast & 0x00100000))
245 P = (nv_rd32(device, 0x004028) & 0x00070000) >> 16;
246 switch (mast & 0x00000003) {
247 case 0x00000000: return read_clk(dev, clk_src_crystal) >> P;
248 case 0x00000001: return read_clk(dev, clk_src_dom6);
249 case 0x00000002: return read_pll(dev, 0x004020) >> P;
250 case 0x00000003: return read_pll(dev, 0x004028) >> P;
254 P = (nv_rd32(device, 0x004020) & 0x00070000) >> 16;
255 switch (mast & 0x00000030) {
257 if (mast & 0x00000080)
258 return read_clk(dev, clk_src_host) >> P;
259 return read_clk(dev, clk_src_crystal) >> P;
260 case 0x00000010: break;
261 case 0x00000020: return read_pll(dev, 0x004028) >> P;
262 case 0x00000030: return read_pll(dev, 0x004020) >> P;
266 P = (nv_rd32(device, 0x004008) & 0x00070000) >> 16;
267 if (nv_rd32(device, 0x004008) & 0x00000200) {
268 switch (mast & 0x0000c000) {
270 return read_clk(dev, clk_src_crystal) >> P;
273 return read_clk(dev, clk_src_href) >> P;
276 return read_pll(dev, 0x004008) >> P;
280 P = (read_div(dev) & 0x00000700) >> 8;
281 switch (nv_device(drm->device)->chipset) {
288 switch (mast & 0x00000c00) {
290 if (nv_device(drm->device)->chipset == 0xa0) /* wtf?? */
291 return read_clk(dev, clk_src_nvclk) >> P;
292 return read_clk(dev, clk_src_crystal) >> P;
296 if (mast & 0x01000000)
297 return read_pll(dev, 0x004028) >> P;
298 return read_pll(dev, 0x004030) >> P;
300 return read_clk(dev, clk_src_nvclk) >> P;
304 switch (mast & 0x00000c00) {
306 return read_clk(dev, clk_src_nvclk) >> P;
310 return read_clk(dev, clk_src_hclkm3d2) >> P;
312 return read_clk(dev, clk_src_mclk) >> P;
318 switch (nv_device(drm->device)->chipset) {
321 return read_pll(dev, 0x00e810) >> 2;
328 P = (read_div(dev) & 0x00000007) >> 0;
329 switch (mast & 0x0c000000) {
330 case 0x00000000: return read_clk(dev, clk_src_href);
331 case 0x04000000: break;
332 case 0x08000000: return read_clk(dev, clk_src_hclk);
334 return read_clk(dev, clk_src_hclkm3) >> P;
344 NV_DEBUG(drm, "unknown clock source %d 0x%08x\n", src, mast);
349 nv50_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
351 struct nouveau_drm *drm = nouveau_drm(dev);
352 if (nv_device(drm->device)->chipset == 0xaa ||
353 nv_device(drm->device)->chipset == 0xac)
356 perflvl->core = read_clk(dev, clk_src_nvclk);
357 perflvl->shader = read_clk(dev, clk_src_sclk);
358 perflvl->memory = read_clk(dev, clk_src_mclk);
359 if (nv_device(drm->device)->chipset != 0x50) {
360 perflvl->vdec = read_clk(dev, clk_src_vdec);
361 perflvl->dom6 = read_clk(dev, clk_src_dom6);
367 struct nv50_pm_state {
368 struct nouveau_pm_level *perflvl;
369 struct hwsq_ucode eclk_hwsq;
370 struct hwsq_ucode mclk_hwsq;
378 calc_pll(struct drm_device *dev, u32 reg, struct nvbios_pll *pll,
379 u32 clk, int *N1, int *M1, int *log2P)
381 struct nouveau_device *device = nouveau_dev(dev);
382 struct nouveau_bios *bios = nouveau_bios(device);
383 struct nouveau_clock *pclk = nouveau_clock(device);
384 struct nouveau_pll_vals coef;
387 ret = nvbios_pll_parse(bios, reg, pll);
391 pll->vco2.max_freq = 0;
392 pll->refclk = read_pll_ref(dev, reg);
396 ret = pclk->pll_calc(pclk, pll, clk, &coef);
407 calc_div(u32 src, u32 target, int *div)
409 u32 clk0 = src, clk1 = src;
410 for (*div = 0; *div <= 7; (*div)++) {
411 if (clk0 <= target) {
412 clk1 = clk0 << (*div ? 1 : 0);
418 if (target - clk0 <= clk1 - target)
425 clk_same(u32 a, u32 b)
427 return ((a / 1000) == (b / 1000));
431 mclk_precharge(struct nouveau_mem_exec_func *exec)
433 struct nv50_pm_state *info = exec->priv;
434 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
436 hwsq_wr32(hwsq, 0x1002d4, 0x00000001);
440 mclk_refresh(struct nouveau_mem_exec_func *exec)
442 struct nv50_pm_state *info = exec->priv;
443 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
445 hwsq_wr32(hwsq, 0x1002d0, 0x00000001);
449 mclk_refresh_auto(struct nouveau_mem_exec_func *exec, bool enable)
451 struct nv50_pm_state *info = exec->priv;
452 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
454 hwsq_wr32(hwsq, 0x100210, enable ? 0x80000000 : 0x00000000);
458 mclk_refresh_self(struct nouveau_mem_exec_func *exec, bool enable)
460 struct nv50_pm_state *info = exec->priv;
461 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
463 hwsq_wr32(hwsq, 0x1002dc, enable ? 0x00000001 : 0x00000000);
467 mclk_wait(struct nouveau_mem_exec_func *exec, u32 nsec)
469 struct nv50_pm_state *info = exec->priv;
470 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
473 hwsq_usec(hwsq, (nsec + 500) / 1000);
477 mclk_mrg(struct nouveau_mem_exec_func *exec, int mr)
479 struct nouveau_device *device = nouveau_dev(exec->dev);
481 return nv_rd32(device, 0x1002c0 + ((mr - 0) * 4));
483 return nv_rd32(device, 0x1002e0 + ((mr - 2) * 4));
488 mclk_mrs(struct nouveau_mem_exec_func *exec, int mr, u32 data)
490 struct nouveau_device *device = nouveau_dev(exec->dev);
491 struct nouveau_fb *pfb = nouveau_fb(device);
492 struct nv50_pm_state *info = exec->priv;
493 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
496 if (pfb->ram.ranks > 1)
497 hwsq_wr32(hwsq, 0x1002c8 + ((mr - 0) * 4), data);
498 hwsq_wr32(hwsq, 0x1002c0 + ((mr - 0) * 4), data);
501 if (pfb->ram.ranks > 1)
502 hwsq_wr32(hwsq, 0x1002e8 + ((mr - 2) * 4), data);
503 hwsq_wr32(hwsq, 0x1002e0 + ((mr - 2) * 4), data);
508 mclk_clock_set(struct nouveau_mem_exec_func *exec)
510 struct nouveau_device *device = nouveau_dev(exec->dev);
511 struct nv50_pm_state *info = exec->priv;
512 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
513 u32 ctrl = nv_rd32(device, 0x004008);
515 info->mmast = nv_rd32(device, 0x00c040);
516 info->mmast &= ~0xc0000000; /* get MCLK_2 from HREF */
517 info->mmast |= 0x0000c000; /* use MCLK_2 as MPLL_BYPASS clock */
519 hwsq_wr32(hwsq, 0xc040, info->mmast);
520 hwsq_wr32(hwsq, 0x4008, ctrl | 0x00000200); /* bypass MPLL */
521 if (info->mctrl & 0x80000000)
522 hwsq_wr32(hwsq, 0x400c, info->mcoef);
523 hwsq_wr32(hwsq, 0x4008, info->mctrl);
527 mclk_timing_set(struct nouveau_mem_exec_func *exec)
529 struct nouveau_device *device = nouveau_dev(exec->dev);
530 struct nv50_pm_state *info = exec->priv;
531 struct nouveau_pm_level *perflvl = info->perflvl;
532 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
535 for (i = 0; i < 9; i++) {
536 u32 reg = 0x100220 + (i * 4);
537 u32 val = nv_rd32(device, reg);
538 if (val != perflvl->timing.reg[i])
539 hwsq_wr32(hwsq, reg, perflvl->timing.reg[i]);
544 calc_mclk(struct drm_device *dev, struct nouveau_pm_level *perflvl,
545 struct nv50_pm_state *info)
547 struct nouveau_drm *drm = nouveau_drm(dev);
548 struct nouveau_device *device = nouveau_dev(dev);
549 u32 crtc_mask = 0; /*XXX: nv50_display_active_crtcs(dev); */
550 struct nouveau_mem_exec_func exec = {
552 .precharge = mclk_precharge,
553 .refresh = mclk_refresh,
554 .refresh_auto = mclk_refresh_auto,
555 .refresh_self = mclk_refresh_self,
559 .clock_set = mclk_clock_set,
560 .timing_set = mclk_timing_set,
563 struct hwsq_ucode *hwsq = &info->mclk_hwsq;
564 struct nvbios_pll pll;
568 /* use pcie refclock if possible, otherwise use mpll */
569 info->mctrl = nv_rd32(device, 0x004008);
570 info->mctrl &= ~0x81ff0200;
571 if (clk_same(perflvl->memory, read_clk(dev, clk_src_href))) {
572 info->mctrl |= 0x00000200 | (pll.bias_p << 19);
574 ret = calc_pll(dev, 0x4008, &pll, perflvl->memory, &N, &M, &P);
578 info->mctrl |= 0x80000000 | (P << 22) | (P << 16);
579 info->mctrl |= pll.bias_p << 19;
580 info->mcoef = (N << 8) | M;
583 /* build the ucode which will reclock the memory for us */
586 hwsq_op5f(hwsq, crtc_mask, 0x00); /* wait for scanout */
587 hwsq_op5f(hwsq, crtc_mask, 0x01); /* wait for vblank */
589 if (nv_device(drm->device)->chipset >= 0x92)
590 hwsq_wr32(hwsq, 0x611200, 0x00003300); /* disable scanout */
591 hwsq_setf(hwsq, 0x10, 0); /* disable bus access */
592 hwsq_op5f(hwsq, 0x00, 0x01); /* no idea :s */
594 ret = nouveau_mem_exec(&exec, perflvl);
598 hwsq_setf(hwsq, 0x10, 1); /* enable bus access */
599 hwsq_op5f(hwsq, 0x00, 0x00); /* no idea, reverse of 0x00, 0x01? */
600 if (nv_device(drm->device)->chipset >= 0x92)
601 hwsq_wr32(hwsq, 0x611200, 0x00003330); /* enable scanout */
607 nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
609 struct nouveau_device *device = nouveau_dev(dev);
610 struct nouveau_drm *drm = nouveau_drm(dev);
611 struct nv50_pm_state *info;
612 struct hwsq_ucode *hwsq;
613 struct nvbios_pll pll;
614 u32 out, mast, divs, ctrl;
615 int clk, ret = -EINVAL;
618 if (nv_device(drm->device)->chipset == 0xaa ||
619 nv_device(drm->device)->chipset == 0xac)
620 return ERR_PTR(-ENODEV);
622 info = kmalloc(sizeof(*info), GFP_KERNEL);
624 return ERR_PTR(-ENOMEM);
625 info->perflvl = perflvl;
627 /* memory: build hwsq ucode which we'll use to reclock memory.
628 * use pcie refclock if possible, otherwise use mpll */
629 info->mclk_hwsq.len = 0;
630 if (perflvl->memory) {
631 ret = calc_mclk(dev, perflvl, info);
634 info->mscript = perflvl->memscript;
637 divs = read_div(dev);
640 /* start building HWSQ script for engine reclocking */
641 hwsq = &info->eclk_hwsq;
643 hwsq_setf(hwsq, 0x10, 0); /* disable bus access */
644 hwsq_op5f(hwsq, 0x00, 0x01); /* wait for access disabled? */
646 /* vdec/dom6: switch to "safe" clocks temporarily */
657 hwsq_wr32(hwsq, 0x00c040, mast);
659 /* vdec: avoid modifying xpll until we know exactly how the other
660 * clock domains work, i suspect at least some of them can also be
664 /* see how close we can get using nvclk as a source */
665 clk = calc_div(perflvl->core, perflvl->vdec, &P1);
667 /* see how close we can get using xpll/hclk as a source */
668 if (nv_device(drm->device)->chipset != 0x98)
669 out = read_pll(dev, 0x004030);
671 out = read_clk(dev, clk_src_hclkm3d2);
672 out = calc_div(out, perflvl->vdec, &P2);
674 /* select whichever gets us closest */
675 if (abs((int)perflvl->vdec - clk) <=
676 abs((int)perflvl->vdec - out)) {
677 if (nv_device(drm->device)->chipset != 0x98)
686 /* dom6: nfi what this is, but we're limited to various combinations
687 * of the host clock frequency
690 if (clk_same(perflvl->dom6, read_clk(dev, clk_src_href))) {
693 if (clk_same(perflvl->dom6, read_clk(dev, clk_src_hclk))) {
696 clk = read_clk(dev, clk_src_hclk) * 3;
697 clk = calc_div(clk, perflvl->dom6, &P1);
704 /* vdec/dom6: complete switch to new clocks */
705 switch (nv_device(drm->device)->chipset) {
709 hwsq_wr32(hwsq, 0x004800, divs);
712 hwsq_wr32(hwsq, 0x004700, divs);
716 hwsq_wr32(hwsq, 0x00c040, mast);
718 /* core/shader: make sure sclk/nvclk are disconnected from their
719 * PLLs (nvclk to dom6, sclk to hclk)
721 if (nv_device(drm->device)->chipset < 0x92)
722 mast = (mast & ~0x001000b0) | 0x00100080;
724 mast = (mast & ~0x000000b3) | 0x00000081;
726 hwsq_wr32(hwsq, 0x00c040, mast);
728 /* core: for the moment at least, always use nvpll */
729 clk = calc_pll(dev, 0x4028, &pll, perflvl->core, &N, &M, &P1);
733 ctrl = nv_rd32(device, 0x004028) & ~0xc03f0100;
737 hwsq_wr32(hwsq, 0x004028, 0x80000000 | (P1 << 19) | (P1 << 16) | ctrl);
738 hwsq_wr32(hwsq, 0x00402c, (N << 8) | M);
740 /* shader: tie to nvclk if possible, otherwise use spll. have to be
741 * very careful that the shader clock is at least twice the core, or
742 * some chipsets will be very unhappy. i expect most or all of these
743 * cases will be handled by tying to nvclk, but it's possible there's
746 ctrl = nv_rd32(device, 0x004020) & ~0xc03f0100;
748 if (P1-- && perflvl->shader == (perflvl->core << 1)) {
749 hwsq_wr32(hwsq, 0x004020, (P1 << 19) | (P1 << 16) | ctrl);
750 hwsq_wr32(hwsq, 0x00c040, 0x00000020 | mast);
752 clk = calc_pll(dev, 0x4020, &pll, perflvl->shader, &N, &M, &P1);
757 hwsq_wr32(hwsq, 0x004020, (P1 << 19) | (P1 << 16) | ctrl);
758 hwsq_wr32(hwsq, 0x004024, (N << 8) | M);
759 hwsq_wr32(hwsq, 0x00c040, 0x00000030 | mast);
762 hwsq_setf(hwsq, 0x10, 1); /* enable bus access */
763 hwsq_op5f(hwsq, 0x00, 0x00); /* wait for access enabled? */
773 prog_hwsq(struct drm_device *dev, struct hwsq_ucode *hwsq)
775 struct nouveau_device *device = nouveau_dev(dev);
776 struct nouveau_drm *drm = nouveau_drm(dev);
777 u32 hwsq_data, hwsq_kick;
780 if (nv_device(drm->device)->chipset < 0x94) {
781 hwsq_data = 0x001400;
782 hwsq_kick = 0x00000003;
784 hwsq_data = 0x080000;
785 hwsq_kick = 0x00000001;
787 /* upload hwsq ucode */
788 nv_mask(device, 0x001098, 0x00000008, 0x00000000);
789 nv_wr32(device, 0x001304, 0x00000000);
790 if (nv_device(drm->device)->chipset >= 0x92)
791 nv_wr32(device, 0x001318, 0x00000000);
792 for (i = 0; i < hwsq->len / 4; i++)
793 nv_wr32(device, hwsq_data + (i * 4), hwsq->ptr.u32[i]);
794 nv_mask(device, 0x001098, 0x00000018, 0x00000018);
796 /* launch, and wait for completion */
797 nv_wr32(device, 0x00130c, hwsq_kick);
798 if (!nv_wait(device, 0x001308, 0x00000100, 0x00000000)) {
799 NV_ERROR(drm, "hwsq ucode exec timed out\n");
800 NV_ERROR(drm, "0x001308: 0x%08x\n", nv_rd32(device, 0x001308));
801 for (i = 0; i < hwsq->len / 4; i++) {
802 NV_ERROR(drm, "0x%06x: 0x%08x\n", 0x1400 + (i * 4),
803 nv_rd32(device, 0x001400 + (i * 4)));
813 nv50_pm_clocks_set(struct drm_device *dev, void *data)
815 struct nouveau_device *device = nouveau_dev(dev);
816 struct nv50_pm_state *info = data;
820 /* halt and idle execution engines */
821 nv_mask(device, 0x002504, 0x00000001, 0x00000001);
822 if (!nv_wait(device, 0x002504, 0x00000010, 0x00000010))
824 if (!nv_wait(device, 0x00251c, 0x0000003f, 0x0000003f))
827 /* program memory clock, if necessary - must come before engine clock
828 * reprogramming due to how we construct the hwsq scripts in pre()
830 #define nouveau_bios_init_exec(a,b) nouveau_bios_run_init_table((a), (b), NULL, 0)
831 if (info->mclk_hwsq.len) {
832 /* execute some scripts that do ??? from the vbios.. */
833 if (!bit_table(dev, 'M', &M) && M.version == 1) {
835 nouveau_bios_init_exec(dev, ROM16(M.data[5]));
837 nouveau_bios_init_exec(dev, ROM16(M.data[7]));
839 nouveau_bios_init_exec(dev, ROM16(M.data[9]));
840 nouveau_bios_init_exec(dev, info->mscript);
843 ret = prog_hwsq(dev, &info->mclk_hwsq);
848 /* program engine clocks */
849 ret = prog_hwsq(dev, &info->eclk_hwsq);
852 nv_mask(device, 0x002504, 0x00000001, 0x00000000);