fbdev/riva/riva_hw.c

242 static int nv3_iterate(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_arb_info *ainfo)
259     cur = ainfo->cur;
263     if (ainfo->gburst_size == 128) max_gfsize = GFIFO_SIZE_128;
268         if (ainfo->vid_en)
270             if (ainfo->wcvocc > ainfo->vocc) ainfo->wcvocc = ainfo->vocc;
271             if (ainfo->wcvlwm > vlwm) ainfo->wcvlwm = vlwm ;
272             ns = 1000000 * ainfo->vburst_size/(state->memory_width/8)/state->mclk_khz;
273             vfsize = ns * ainfo->vdrain_rate / 1000000;
274             vfsize =  ainfo->wcvlwm - ainfo->vburst_size + vfsize;
278             if (ainfo->wcmocc > ainfo->mocc) ainfo->wcmocc = ainfo->mocc;
280         if (ainfo->gr_en)
282             if (ainfo->wcglwm > glwm) ainfo->wcglwm = glwm ;
283             if (ainfo->wcgocc > ainfo->gocc) ainfo->wcgocc = ainfo->gocc;
284             ns = 1000000 * (ainfo->gburst_size/(state->memory_width/8))/state->mclk_khz;
285             gfsize = (ns * (long) ainfo->gdrain_rate)/1000000;
286             gfsize = ainfo->wcglwm - ainfo->gburst_size + gfsize;
289         if (!state->gr_during_vid && ainfo->vid_en)
290             if (ainfo->vid_en && (ainfo->vocc < 0) && !ainfo->vid_only_once)
292             else if (ainfo->mocc < 0)
294             else if (ainfo->gocc< ainfo->by_gfacc)
297         else switch (ainfo->priority)
300                     if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
302                     else if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
304                     else if (ainfo->mocc<0)
309                     if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
311                     else if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
313                     else if (ainfo->mocc<0)
318                     if (ainfo->mocc<0)
320                     else if (ainfo->gr_en && ainfo->gocc<0 && !ainfo->gr_only_once)
322                     else if (ainfo->vid_en && ainfo->vocc<0 && !ainfo->vid_only_once)
334                 else if (ainfo->first_vacc)   misses = vmisses;
336                 ainfo->first_vacc = 0;
340                     vlwm = ns * ainfo->vdrain_rate/ 1000000;
341                     vlwm = ainfo->vocc - vlwm;
343                 ns = 1000000*(misses*state->mem_page_miss + ainfo->vburst_size)/(state->memory_width/8)/state->mclk_khz;
344                 ainfo->vocc = ainfo->vocc + ainfo->vburst_size - ns*ainfo->vdrain_rate/1000000;
345                 ainfo->gocc = ainfo->gocc - ns*ainfo->gdrain_rate/1000000;
346                 ainfo->mocc = ainfo->mocc - ns*ainfo->mdrain_rate/1000000;
350                 else if (ainfo->first_gacc)   misses = gmisses;
352                 ainfo->first_gacc = 0;
356                     glwm = ns * ainfo->gdrain_rate/1000000;
357                     glwm = ainfo->gocc - glwm;
359                 ns = 1000000*(misses*state->mem_page_miss + ainfo->gburst_size/(state->memory_width/8))/state->mclk_khz;
360                 ainfo->vocc = ainfo->vocc + 0 - ns*ainfo->vdrain_rate/1000000;
361                 ainfo->gocc = ainfo->gocc + ainfo->gburst_size - ns*ainfo->gdrain_rate/1000000;
362                 ainfo->mocc = ainfo->mocc + 0 - ns*ainfo->mdrain_rate/1000000;
366                 else if (ainfo->first_macc)   misses = mmisses;
368                 ainfo->first_macc = 0;
370                 ainfo->vocc = ainfo->vocc + 0 - ns*ainfo->vdrain_rate/1000000;
371                 ainfo->gocc = ainfo->gocc + 0 - ns*ainfo->gdrain_rate/1000000;
372                 ainfo->mocc = ainfo->mocc + mburst_size - ns*ainfo->mdrain_rate/1000000;
377             ainfo->converged = 0;
380         ns = 1000000*ainfo->gburst_size/(state->memory_width/8)/state->mclk_khz;
381         tmp = ns * ainfo->gdrain_rate/1000000;
382         if (abs(ainfo->gburst_size) + ((abs(ainfo->wcglwm) + 16 ) & ~0x7) - tmp > max_gfsize)
384             ainfo->converged = 0;
387         ns = 1000000*ainfo->vburst_size/(state->memory_width/8)/state->mclk_khz;
388         tmp = ns * ainfo->vdrain_rate/1000000;
389         if (abs(ainfo->vburst_size) + (abs(ainfo->wcvlwm + 32) & ~0xf)  - tmp> VFIFO_SIZE)
391             ainfo->converged = 0;
394         if (abs(ainfo->gocc) > max_gfsize)
396             ainfo->converged = 0;
399         if (abs(ainfo->vocc) > VFIFO_SIZE)
401             ainfo->converged = 0;
404         if (abs(ainfo->mocc) > MFIFO_SIZE)
406             ainfo->converged = 0;
411             ainfo->converged = 0;
416             ainfo->converged = 0;
421             ainfo->converged = 0;
426 static char nv3_arb(nv3_fifo_info * res_info, nv3_sim_state * state,  nv3_arb_info *ainfo)
440     ainfo->by_gfacc = gns*ainfo->gdrain_rate/1000000;
441     ainfo->wcmocc = 0;
442     ainfo->wcgocc = 0;
443     ainfo->wcvocc = 0;
444     ainfo->wcvlwm = 0;
445     ainfo->wcglwm = 0;
446     ainfo->engine_en = 1;
447     ainfo->converged = 1;
448     if (ainfo->engine_en)
451         ainfo->mocc = state->enable_mp ? 0-ens*ainfo->mdrain_rate/1000000 : 0;
452         ainfo->vocc = ainfo->vid_en ? 0-ens*ainfo->vdrain_rate/1000000 : 0;
453         ainfo->gocc = ainfo->gr_en ? 0-ens*ainfo->gdrain_rate/1000000 : 0;
454         ainfo->cur = ENGINE;
455         ainfo->first_vacc = 1;
456         ainfo->first_gacc = 1;
457         ainfo->first_macc = 1;
458         nv3_iterate(res_info, state,ainfo);
463         ainfo->mocc = state->enable_mp ? 0 : mburst_size - mns*ainfo->mdrain_rate/1000000;
464         ainfo->vocc = ainfo->vid_en ? 0 : 0- mns*ainfo->vdrain_rate/1000000;
465         ainfo->gocc = ainfo->gr_en ? 0: 0- mns*ainfo->gdrain_rate/1000000;
466         ainfo->cur = MPORT;
467         ainfo->first_vacc = 1;
468         ainfo->first_gacc = 1;
469         ainfo->first_macc = 0;
470         nv3_iterate(res_info, state,ainfo);
472     if (ainfo->gr_en)
474         ainfo->first_vacc = 1;
475         ainfo->first_gacc = 0;
476         ainfo->first_macc = 1;
477         gns = 1000000*(gmisses*state->mem_page_miss + ainfo->gburst_size/(state->memory_width/8) + refresh_cycle)/state->mclk_khz;
478         ainfo->gocc = ainfo->gburst_size - gns*ainfo->gdrain_rate/1000000;
479         ainfo->vocc = ainfo->vid_en? 0-gns*ainfo->vdrain_rate/1000000 : 0;
480         ainfo->mocc = state->enable_mp ?  0-gns*ainfo->mdrain_rate/1000000: 0;
481         ainfo->cur = GRAPHICS;
482         nv3_iterate(res_info, state,ainfo);
484     if (ainfo->vid_en)
486         ainfo->first_vacc = 0;
487         ainfo->first_gacc = 1;
488         ainfo->first_macc = 1;
489         vns = 1000000*(vmisses*state->mem_page_miss + ainfo->vburst_size/(state->memory_width/8) + refresh_cycle)/state->mclk_khz;
490         ainfo->vocc = ainfo->vburst_size - vns*ainfo->vdrain_rate/1000000;
491         ainfo->gocc = ainfo->gr_en? (0-vns*ainfo->gdrain_rate/1000000) : 0;
492         ainfo->mocc = state->enable_mp? 0-vns*ainfo->mdrain_rate/1000000 :0 ;
493         ainfo->cur = VIDEO;
494         nv3_iterate(res_info, state, ainfo);
496     if (ainfo->converged)
498         res_info->graphics_lwm = (int)abs(ainfo->wcglwm) + 16;
499         res_info->video_lwm = (int)abs(ainfo->wcvlwm) + 32;
500         res_info->graphics_burst_size = ainfo->gburst_size;
501         res_info->video_burst_size = ainfo->vburst_size;
502         res_info->graphics_hi_priority = (ainfo->priority == GRAPHICS);
503         res_info->media_hi_priority = (ainfo->priority == MPORT);
512             ainfo->converged = 0;
532 static char nv3_get_param(nv3_fifo_info *res_info, nv3_sim_state * state, nv3_arb_info *ainfo)
543                 ainfo->priority = p;
544                 ainfo->gburst_size = g;
545                 ainfo->vburst_size = v;
546                 done = nv3_arb(res_info, state,ainfo);
566     nv3_arb_info ainfo;
569     ainfo.gr_en = 1;
570     ainfo.vid_en = state->enable_video;
571     ainfo.vid_only_once = 0;
572     ainfo.gr_only_once = 0;
573     ainfo.gdrain_rate = (int) state->pclk_khz * (state->pix_bpp/8);
574     ainfo.vdrain_rate = (int) state->pclk_khz * 2;
576         ainfo.vdrain_rate = ainfo.vdrain_rate/state->video_scale;
577     ainfo.mdrain_rate = 33000;
581         ainfo.gr_only_once = 1;
582         ainfo.gr_en = 1;
583         ainfo.gdrain_rate = 0;
584         res_vid = nv3_get_param(res_info, state,  &ainfo);
585         res_vid = ainfo.converged;
588         ainfo.vid_en = 1;
589         ainfo.vid_only_once = 1;
590         ainfo.gr_en = 1;
591         ainfo.gdrain_rate = (int) state->pclk_khz * (state->pix_bpp/8);
592         ainfo.vdrain_rate = 0;
593         res_gr = nv3_get_param(res_info, state,  &ainfo);
594         res_gr = ainfo.converged;
601         if (!ainfo.gr_en) ainfo.gdrain_rate = 0;
602         if (!ainfo.vid_en) ainfo.vdrain_rate = 0;
603         res_gr = nv3_get_param(res_info, state,  &ainfo);
604         res_info->valid = ainfo.converged;