2 * Copyright 1993-2003 NVIDIA, Corporation
3 * Copyright 2008 Stuart Bennett
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
19 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
20 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
24 #include "nv_include.h"
26 uint32_t NVRead(NVPtr pNv, uint32_t reg)
28 DDXMMIOW("NVRead: reg %08x val %08x\n", reg, (uint32_t)NV_RD32(pNv->REGS, reg));
29 return NV_RD32(pNv->REGS, reg);
32 void NVWrite(NVPtr pNv, uint32_t reg, uint32_t val)
34 DDXMMIOW("NVWrite: reg %08x val %08x\n", reg, NV_WR32(pNv->REGS, reg, val));
37 uint32_t NVReadCRTC(NVPtr pNv, int head, uint32_t reg)
40 reg += NV_PCRTC0_SIZE;
41 DDXMMIOH("NVReadCRTC: head %d reg %08x val %08x\n", head, reg, (uint32_t)NV_RD32(pNv->REGS, reg));
42 return NV_RD32(pNv->REGS, reg);
45 void NVWriteCRTC(NVPtr pNv, int head, uint32_t reg, uint32_t val)
48 reg += NV_PCRTC0_SIZE;
49 DDXMMIOH("NVWriteCRTC: head %d reg %08x val %08x\n", head, reg, val);
50 NV_WR32(pNv->REGS, reg, val);
53 uint32_t NVReadRAMDAC(NVPtr pNv, int head, uint32_t reg)
56 reg += NV_PRAMDAC0_SIZE;
57 DDXMMIOH("NVReadRamdac: head %d reg %08x val %08x\n", head, reg, (uint32_t)NV_RD32(pNv->REGS, reg));
58 return NV_RD32(pNv->REGS, reg);
61 void NVWriteRAMDAC(NVPtr pNv, int head, uint32_t reg, uint32_t val)
64 reg += NV_PRAMDAC0_SIZE;
65 DDXMMIOH("NVWriteRamdac: head %d reg %08x val %08x\n", head, reg, val);
66 NV_WR32(pNv->REGS, reg, val);
69 uint8_t nv_read_tmds(NVPtr pNv, int or, int dl, uint8_t address)
71 int ramdac = (or & OUTPUT_C) >> 2;
73 NVWriteRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_CONTROL + dl * 8,
74 NV_RAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE | address);
75 return NVReadRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_DATA + dl * 8);
78 int nv_get_digital_bound_head(NVPtr pNv, int or)
80 /* special case of nv_read_tmds to find crtc associated with an output.
81 * this does not give a correct answer for off-chip dvi, but there's no
82 * use for such an answer anyway
84 int ramdac = (or & OUTPUT_C) >> 2;
86 NVWriteRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_CONTROL,
87 NV_RAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE | 0x4);
88 return (((NVReadRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_DATA) & 0x8) >> 3) ^ ramdac);
91 void nv_write_tmds(NVPtr pNv, int or, int dl, uint8_t address, uint8_t data)
93 int ramdac = (or & OUTPUT_C) >> 2;
95 NVWriteRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_DATA + dl * 8, data);
96 NVWriteRAMDAC(pNv, ramdac, NV_RAMDAC_FP_TMDS_CONTROL + dl * 8, address);
99 void NVWriteVgaCrtc(NVPtr pNv, int head, uint8_t index, uint8_t value)
101 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
103 DDXMMIOH("NVWriteVgaCrtc: head %d index 0x%02x data 0x%02x\n", head, index, value);
104 NV_WR08(pNv->REGS, CRTC_INDEX_COLOR + mmiobase, index);
105 NV_WR08(pNv->REGS, CRTC_DATA_COLOR + mmiobase, value);
108 uint8_t NVReadVgaCrtc(NVPtr pNv, int head, uint8_t index)
110 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
112 NV_WR08(pNv->REGS, CRTC_INDEX_COLOR + mmiobase, index);
113 DDXMMIOH("NVReadVgaCrtc: head %d index 0x%02x data 0x%02x\n", head, index, NV_RD08(pNv->REGS, CRTC_DATA_COLOR + mmiobase));
114 return NV_RD08(pNv->REGS, CRTC_DATA_COLOR + mmiobase);
117 /* CR57 and CR58 are a fun pair of regs. CR57 provides an index (0-0xf) for CR58
118 * I suspect they in fact do nothing, but are merely a way to carry useful
119 * per-head variables around
123 * 0x00 index to the appropriate dcb entry (or 7f for inactive)
124 * 0x02 dcb entry's "or" value (or 00 for inactive)
125 * 0x03 bit0 set for dual link (LVDS, possibly elsewhere too)
126 * 0x08 or 0x09 pxclk in MHz
127 * 0x0f laptop panel info - low nibble for PEXTDEV_BOOT_0 strap
128 * high nibble for xlat strap value
131 void NVWriteVgaCrtc5758(NVPtr pNv, int head, uint8_t index, uint8_t value)
133 NVWriteVgaCrtc(pNv, head, 0x57, index);
134 NVWriteVgaCrtc(pNv, head, 0x58, value);
137 uint8_t NVReadVgaCrtc5758(NVPtr pNv, int head, uint8_t index)
139 NVWriteVgaCrtc(pNv, head, 0x57, index);
140 return NVReadVgaCrtc(pNv, head, 0x58);
143 uint8_t NVReadPVIO(NVPtr pNv, int head, uint16_t port)
145 /* Only NV4x have two pvio ranges */
146 uint32_t mmiobase = (head && pNv->Architecture == NV_ARCH_40) ? NV_PVIO1_OFFSET : NV_PVIO0_OFFSET;
148 DDXMMIOH("NVReadPVIO: head %d reg %08x val %02x\n", head, port + mmiobase, NV_RD08(pNv->REGS, port + mmiobase));
149 return NV_RD08(pNv->REGS, port + mmiobase);
152 void NVWritePVIO(NVPtr pNv, int head, uint16_t port, uint8_t value)
154 /* Only NV4x have two pvio ranges */
155 uint32_t mmiobase = (head && pNv->Architecture == NV_ARCH_40) ? NV_PVIO1_OFFSET : NV_PVIO0_OFFSET;
157 DDXMMIOH("NVWritePVIO: head %d reg %08x val %02x\n", head, port + mmiobase, value);
158 NV_WR08(pNv->REGS, port + mmiobase, value);
161 void NVWriteVgaSeq(NVPtr pNv, int head, uint8_t index, uint8_t value)
163 NVWritePVIO(pNv, head, VGA_SEQ_INDEX, index);
164 NVWritePVIO(pNv, head, VGA_SEQ_DATA, value);
167 uint8_t NVReadVgaSeq(NVPtr pNv, int head, uint8_t index)
169 NVWritePVIO(pNv, head, VGA_SEQ_INDEX, index);
170 return NVReadPVIO(pNv, head, VGA_SEQ_DATA);
173 void NVWriteVgaGr(NVPtr pNv, int head, uint8_t index, uint8_t value)
175 NVWritePVIO(pNv, head, VGA_GRAPH_INDEX, index);
176 NVWritePVIO(pNv, head, VGA_GRAPH_DATA, value);
179 uint8_t NVReadVgaGr(NVPtr pNv, int head, uint8_t index)
181 NVWritePVIO(pNv, head, VGA_GRAPH_INDEX, index);
182 return NVReadPVIO(pNv, head, VGA_GRAPH_DATA);
185 #define CRTC_IN_STAT_1 0x3da
187 void NVSetEnablePalette(NVPtr pNv, int head, bool enable)
189 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
191 VGA_RD08(pNv->REGS, CRTC_IN_STAT_1 + mmiobase);
192 VGA_WR08(pNv->REGS, VGA_ATTR_INDEX + mmiobase, enable ? 0 : 0x20);
195 static bool NVGetEnablePalette(NVPtr pNv, int head)
197 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
199 VGA_RD08(pNv->REGS, CRTC_IN_STAT_1 + mmiobase);
200 return !(VGA_RD08(pNv->REGS, VGA_ATTR_INDEX + mmiobase) & 0x20);
203 void NVWriteVgaAttr(NVPtr pNv, int head, uint8_t index, uint8_t value)
205 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
207 if (NVGetEnablePalette(pNv, head))
212 NV_RD08(pNv->REGS, CRTC_IN_STAT_1 + mmiobase);
213 DDXMMIOH("NVWriteVgaAttr: head %d index 0x%02x data 0x%02x\n", head, index, value);
214 NV_WR08(pNv->REGS, VGA_ATTR_INDEX + mmiobase, index);
215 NV_WR08(pNv->REGS, VGA_ATTR_DATA_W + mmiobase, value);
218 uint8_t NVReadVgaAttr(NVPtr pNv, int head, uint8_t index)
220 uint32_t mmiobase = head ? NV_PCIO1_OFFSET : NV_PCIO0_OFFSET;
222 if (NVGetEnablePalette(pNv, head))
227 NV_RD08(pNv->REGS, CRTC_IN_STAT_1 + mmiobase);
228 NV_WR08(pNv->REGS, VGA_ATTR_INDEX + mmiobase, index);
229 DDXMMIOH("NVReadVgaAttr: head %d index 0x%02x data 0x%02x\n", head, index, NV_RD08(pNv->REGS, VGA_ATTR_DATA_R + mmiobase));
230 return NV_RD08(pNv->REGS, VGA_ATTR_DATA_R + mmiobase);
233 void NVVgaSeqReset(NVPtr pNv, int head, bool start)
235 NVWriteVgaSeq(pNv, head, 0x0, start ? 0x1 : 0x3);
238 void NVVgaProtect(NVPtr pNv, int head, bool protect)
240 uint8_t seq1 = NVReadVgaSeq(pNv, head, 0x1);
243 NVVgaSeqReset(pNv, head, true);
244 NVWriteVgaSeq(pNv, head, 0x01, seq1 | 0x20);
246 /* Reenable sequencer, then turn on screen */
247 NVWriteVgaSeq(pNv, head, 0x01, seq1 & ~0x20); /* reenable display */
248 NVVgaSeqReset(pNv, head, false);
250 NVSetEnablePalette(pNv, head, protect);
253 void NVSetOwner(ScrnInfoPtr pScrn, int head)
255 NVPtr pNv = NVPTR(pScrn);
256 /* CRTCX_OWNER is always changed on CRTC0 */
257 NVWriteVgaCrtc(pNv, 0, NV_VGA_CRTCX_OWNER, head * 0x3);
259 xf86DrvMsg(pScrn->scrnIndex, X_INFO, "Setting owner: 0x%X.\n", head * 0x3);
262 void NVLockVgaCrtc(NVPtr pNv, int head, bool lock)
266 NVWriteVgaCrtc(pNv, head, NV_VGA_CRTCX_LOCK, lock ? 0x99 : 0x57);
268 cr11 = NVReadVgaCrtc(pNv, head, NV_VGA_CRTCX_VSYNCE);
273 NVWriteVgaCrtc(pNv, head, NV_VGA_CRTCX_VSYNCE, cr11);
276 void NVBlankScreen(ScrnInfoPtr pScrn, int head, bool blank)
279 NVPtr pNv = NVPTR(pScrn);
282 NVSetOwner(pScrn, head);
284 seq1 = NVReadVgaSeq(pNv, head, 0x1);
286 NVVgaSeqReset(pNv, head, TRUE);
288 NVWriteVgaSeq(pNv, head, 0x1, seq1 | 0x20);
290 NVWriteVgaSeq(pNv, head, 0x1, seq1 & ~0x20);
291 NVVgaSeqReset(pNv, head, FALSE);
294 void nv_fix_nv40_hw_cursor(NVPtr pNv, int head)
296 /* on some nv40 (such as the "true" (in the NV_PFB_BOOT_0 sense) nv40,
297 * the gf6800gt) a hardware bug requires a write to PRAMDAC_CURSOR_POS
298 * for changes to the CRTC CURCTL regs to take effect, whether changing
299 * the pixmap location, or just showing/hiding the cursor
301 volatile uint32_t curpos = NVReadRAMDAC(pNv, head, NV_RAMDAC_CURSOR_POS);
302 NVWriteRAMDAC(pNv, head, NV_RAMDAC_CURSOR_POS, curpos);
305 void nv_show_cursor(NVPtr pNv, int head, bool show)
307 int curctl1 = NVReadVgaCrtc(pNv, head, NV_VGA_CRTCX_CURCTL1);
310 NVWriteVgaCrtc(pNv, head, NV_VGA_CRTCX_CURCTL1, curctl1 | 1);
312 NVWriteVgaCrtc(pNv, head, NV_VGA_CRTCX_CURCTL1, curctl1 & ~1);
314 if (pNv->Architecture == NV_ARCH_40)
315 nv_fix_nv40_hw_cursor(pNv, head);
318 int nv_decode_pll_highregs(NVPtr pNv, uint32_t pll1, uint32_t pll2, bool force_single, int refclk)
320 int M1, N1, M2 = 1, N2 = 1, log2P;
323 N1 = (pll1 >> 8) & 0xff;
324 log2P = (pll1 >> 16) & 0x7; /* never more than 6, and nv30/35 only uses 3 bits */
325 if (pNv->twoStagePLL && pll2 & NV31_RAMDAC_ENABLE_VCO2 && !force_single) {
327 N2 = (pll2 >> 8) & 0xff;
328 } else if (pNv->NVArch == 0x30 || pNv->NVArch == 0x35) {
329 M1 &= 0xf; /* only 4 bits */
330 if (pll1 & NV30_RAMDAC_ENABLE_VCO2) {
331 M2 = (pll1 >> 4) & 0x7;
332 N2 = ((pll2 >> 21) & 0x18) | ((pll2 >> 19) & 0x7);
336 /* Avoid divide by zero if called at an inappropriate time */
340 return (N1 * N2 * refclk / (M1 * M2)) >> log2P;
343 static int nv_decode_pll_lowregs(uint32_t Pval, uint32_t NMNM, int refclk)
345 int M1, N1, M2 = 1, N2 = 1, log2P;
347 log2P = (Pval >> 16) & 0x7;
350 N1 = (NMNM >> 8) & 0xff;
351 /* NVPLL and VPLLs use 1 << 8 to indicate single stage mode, MPLL uses 1 << 12 */
352 if (!(Pval & (1 << 8) || Pval & (1 << 12))) {
353 M2 = (NMNM >> 16) & 0xff;
354 N2 = (NMNM >> 24) & 0xff;
357 /* Avoid divide by zero if called at an inappropriate time */
361 return (N1 * N2 * refclk / (M1 * M2)) >> log2P;
364 static int nv_get_clock(ScrnInfoPtr pScrn, enum pll_types plltype)
366 NVPtr pNv = NVPTR(pScrn);
367 const uint32_t nv04_regs[MAX_PLL_TYPES] = { NV_RAMDAC_NVPLL, NV_RAMDAC_MPLL, NV_RAMDAC_VPLL, NV_RAMDAC_VPLL2 };
368 const uint32_t nv40_regs[MAX_PLL_TYPES] = { 0x4000, 0x4020, NV_RAMDAC_VPLL, NV_RAMDAC_VPLL2 };
370 struct pll_lims pll_lim;
372 if (plltype == MPLL && (pNv->Chipset & 0x0ff0) == CHIPSET_NFORCE) {
373 uint32_t mpllP = (PCI_SLOT_READ_LONG(3, 0x6c) >> 8) & 0xf;
377 return 400000 / mpllP;
378 } else if (plltype == MPLL && (pNv->Chipset & 0xff0) == CHIPSET_NFORCE2)
379 return PCI_SLOT_READ_LONG(5, 0x4c) / 1000;
381 if (pNv->Architecture < NV_ARCH_40)
382 reg1 = nv04_regs[plltype];
384 reg1 = nv40_regs[plltype];
386 if (!get_pll_limits(pScrn, plltype, &pll_lim))
390 return nv_decode_pll_lowregs(nvReadMC(pNv, reg1), nvReadMC(pNv, reg1 + 4), pll_lim.refclk);
391 if (pNv->twoStagePLL) {
392 bool nv40_single = pNv->Architecture == 0x40 && ((plltype == VPLL1 && NVReadRAMDAC(pNv, 0, NV_RAMDAC_580) & NV_RAMDAC_580_VPLL1_ACTIVE) || (plltype == VPLL2 && NVReadRAMDAC(pNv, 0, NV_RAMDAC_580) & NV_RAMDAC_580_VPLL2_ACTIVE));
394 return nv_decode_pll_highregs(pNv, nvReadMC(pNv, reg1), nvReadMC(pNv, reg1 + ((reg1 == NV_RAMDAC_VPLL2) ? 0x5c : 0x70)), nv40_single, pll_lim.refclk);
396 return nv_decode_pll_highregs(pNv, nvReadMC(pNv, reg1), 0, false, pll_lim.refclk);
399 /****************************************************************************\
401 * The video arbitration routines calculate some "magic" numbers. Fixes *
402 * the snow seen when accessing the framebuffer without it. *
403 * It just works (I hope). *
405 \****************************************************************************/
407 struct nv_fifo_info {
410 int graphics_burst_size;
411 int video_burst_size;
415 struct nv_sim_state {
428 static void nv4CalcArbitration(struct nv_fifo_info *fifo, struct nv_sim_state *arb)
430 int pagemiss, cas, width, video_enable, bpp;
431 int nvclks, mclks, pclks, vpagemiss, crtpagemiss, vbs;
432 int found, mclk_extra, mclk_loop, cbs, m1, p1;
433 int mclk_freq, pclk_freq, nvclk_freq, mp_enable;
434 int us_m, us_n, us_p, video_drain_rate, crtc_drain_rate;
435 int vpm_us, us_video, vlwm, video_fill_us, cpm_us, us_crt, clwm;
437 pclk_freq = arb->pclk_khz;
438 mclk_freq = arb->mclk_khz;
439 nvclk_freq = arb->nvclk_khz;
440 pagemiss = arb->mem_page_miss;
441 cas = arb->mem_latency;
442 width = arb->memory_width >> 6;
443 video_enable = arb->enable_video;
445 mp_enable = arb->enable_mp;
475 mclk_loop = mclks + mclk_extra;
476 us_m = mclk_loop * 1000 * 1000 / mclk_freq;
477 us_n = nvclks * 1000 * 1000 / nvclk_freq;
478 us_p = nvclks * 1000 * 1000 / pclk_freq;
480 video_drain_rate = pclk_freq * 2;
481 crtc_drain_rate = pclk_freq * bpp / 8;
485 vpm_us = vpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
486 if (nvclk_freq * 2 > mclk_freq * width)
487 video_fill_us = cbs * 1000 * 1000 / 16 / nvclk_freq;
489 video_fill_us = cbs * 1000 * 1000 / (8 * width) / mclk_freq;
490 us_video = vpm_us + us_m + us_n + us_p + video_fill_us;
491 vlwm = us_video * video_drain_rate / (1000 * 1000);
496 if (vlwm > (256 - 64))
498 if (nvclk_freq * 2 > mclk_freq * width)
499 video_fill_us = vbs * 1000 * 1000 / 16 / nvclk_freq;
501 video_fill_us = vbs * 1000 * 1000 / (8 * width) / mclk_freq;
502 cpm_us = crtpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
503 us_crt = us_video + video_fill_us + cpm_us + us_m + us_n + us_p;
504 clwm = us_crt * crtc_drain_rate / (1000 * 1000);
507 crtc_drain_rate = pclk_freq * bpp / 8;
510 cpm_us = crtpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
511 us_crt = cpm_us + us_m + us_n + us_p;
512 clwm = us_crt * crtc_drain_rate / (1000 * 1000);
515 m1 = clwm + cbs - 512;
516 p1 = m1 * pclk_freq / mclk_freq;
518 if ((p1 < m1 && m1 > 0) ||
519 (video_enable && (clwm > 511 || vlwm > 255)) ||
520 (!video_enable && clwm > 519)) {
529 fifo->graphics_lwm = clwm;
530 fifo->graphics_burst_size = 128;
531 fifo->video_lwm = vlwm + 15;
532 fifo->video_burst_size = vbs;
536 static void nv10CalcArbitration(struct nv_fifo_info *fifo, struct nv_sim_state *arb)
538 int pagemiss, width, video_enable, bpp;
539 int nvclks, mclks, pclks, vpagemiss, crtpagemiss;
541 int found, mclk_extra, mclk_loop, cbs, m1;
542 int mclk_freq, pclk_freq, nvclk_freq, mp_enable;
543 int us_m, us_m_min, us_n, us_p, crtc_drain_rate;
545 int vpm_us, us_video, cpm_us, us_crt, clwm;
547 int m2us, us_pipe_min, p1clk, p2;
549 int us_min_mclk_extra;
551 pclk_freq = arb->pclk_khz; /* freq in KHz */
552 mclk_freq = arb->mclk_khz;
553 nvclk_freq = arb->nvclk_khz;
554 pagemiss = arb->mem_page_miss;
555 width = arb->memory_width / 64;
556 video_enable = arb->enable_video;
558 mp_enable = arb->enable_mp;
561 pclks = 4; /* lwm detect. */
562 nvclks = 3; /* lwm -> sync. */
563 nvclks += 2; /* fbi bus cycles (1 req + 1 busy) */
564 mclks = 1; /* 2 edge sync. may be very close to edge so just put one. */
565 mclks += 1; /* arb_hp_req */
566 mclks += 5; /* ap_hp_req tiling pipeline */
567 mclks += 2; /* tc_req latency fifo */
568 mclks += 2; /* fb_cas_n_ memory request to fbio block */
569 mclks += 7; /* sm_d_rdv data returned from fbio block */
571 /* fb.rd.d.Put_gc need to accumulate 256 bits for read */
572 if (arb->memory_type == 0) {
573 if (arb->memory_width == 64) /* 64 bit bus */
577 } else if (arb->memory_width == 64) /* 64 bit bus */
582 if (!video_enable && arb->memory_width == 128) {
583 mclk_extra = (bpp == 32) ? 31 : 42; /* Margin of error */
586 mclk_extra = (bpp == 32) ? 8 : 4; /* Margin of error */
587 /* mclk_extra = 4; *//* Margin of error */
591 nvclks += 1; /* 2 edge sync. may be very close to edge so just put one. */
592 nvclks += 1; /* fbi_d_rdv_n */
593 nvclks += 1; /* Fbi_d_rdata */
594 nvclks += 1; /* crtfifo load */
597 mclks += 4; /* Mp can get in with a burst of 8. */
598 /* Extra clocks determined by heuristics */
606 mclk_loop = mclks + mclk_extra;
607 us_m = mclk_loop * 1000 * 1000 / mclk_freq; /* Mclk latency in us */
608 us_m_min = mclks * 1000 * 1000 / mclk_freq; /* Minimum Mclk latency in us */
609 us_min_mclk_extra = min_mclk_extra * 1000 * 1000 / mclk_freq;
610 us_n = nvclks * 1000 * 1000 / nvclk_freq; /* nvclk latency in us */
611 us_p = pclks * 1000 * 1000 / pclk_freq; /* nvclk latency in us */
612 us_pipe_min = us_m_min + us_n + us_p;
614 vus_m = mclk_loop * 1000 * 1000 / mclk_freq; /* Mclk latency in us */
617 crtc_drain_rate = pclk_freq * bpp / 8; /* MB/s */
619 vpagemiss = 1; /* self generating page miss */
620 vpagemiss += 1; /* One higher priority before */
622 crtpagemiss = 2; /* self generating page miss */
624 crtpagemiss += 1; /* if MA0 conflict */
626 vpm_us = vpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
628 us_video = vpm_us + vus_m; /* Video has separate read return path */
630 cpm_us = crtpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
631 us_crt = us_video /* Wait for video */
632 + cpm_us /* CRT Page miss */
633 + us_m + us_n + us_p; /* other latency */
635 clwm = us_crt * crtc_drain_rate / (1000 * 1000);
636 clwm++; /* fixed point <= float_point - 1. Fixes that */
638 crtc_drain_rate = pclk_freq * bpp / 8; /* bpp * pclk/8 */
640 crtpagemiss = 1; /* self generating page miss */
641 crtpagemiss += 1; /* MA0 page miss */
643 crtpagemiss += 1; /* if MA0 conflict */
644 cpm_us = crtpagemiss * pagemiss * 1000 * 1000 / mclk_freq;
645 us_crt = cpm_us + us_m + us_n + us_p;
646 clwm = us_crt * crtc_drain_rate / (1000 * 1000);
647 clwm++; /* fixed point <= float_point - 1. Fixes that */
649 /* Finally, a heuristic check when width == 64 bits */
651 nvclk_fill = nvclk_freq * 8;
652 if (crtc_drain_rate * 100 >= nvclk_fill * 102)
653 clwm = 0xfff; /* Large number to fail */
654 else if (crtc_drain_rate * 100 >= nvclk_fill * 98) {
665 clwm_rnd_down = (clwm / 8) * 8;
666 if (clwm_rnd_down < clwm)
669 m1 = clwm + cbs - 1024; /* Amount of overfill */
670 m2us = us_pipe_min + us_min_mclk_extra;
672 /* pclk cycles to drain */
673 p1clk = m2us * pclk_freq / (1000 * 1000);
674 p2 = p1clk * bpp / 8; /* bytes drained. */
676 if (p2 < m1 && m1 > 0) {
679 if (min_mclk_extra == 0) {
681 found = 1; /* Can't adjust anymore! */
683 cbs = cbs / 2; /* reduce the burst size */
686 } else if (clwm > 1023) { /* Have some margin */
689 if (min_mclk_extra == 0)
690 found = 1; /* Can't adjust anymore! */
695 if (clwm < (1024 - cbs + 8))
696 clwm = 1024 - cbs + 8;
697 /* printf("CRT LWM: prog: 0x%x, bs: 256\n", clwm); */
698 fifo->graphics_lwm = clwm;
699 fifo->graphics_burst_size = cbs;
701 fifo->video_lwm = 1024;
702 fifo->video_burst_size = 512;
706 void nv4_10UpdateArbitrationSettings(ScrnInfoPtr pScrn, int VClk, int bpp, uint8_t *burst, uint16_t *lwm)
708 NVPtr pNv = NVPTR(pScrn);
709 struct nv_fifo_info fifo_data;
710 struct nv_sim_state sim_data;
711 int MClk = nv_get_clock(pScrn, MPLL);
712 int NVClk = nv_get_clock(pScrn, NVPLL);
713 uint32_t cfg1 = nvReadFB(pNv, NV_PFB_CFG1);
715 sim_data.pclk_khz = VClk;
716 sim_data.mclk_khz = MClk;
717 sim_data.nvclk_khz = NVClk;
718 sim_data.pix_bpp = bpp;
719 sim_data.enable_mp = false;
720 if ((pNv->Chipset & 0xffff) == CHIPSET_NFORCE ||
721 (pNv->Chipset & 0xffff) == CHIPSET_NFORCE2) {
722 sim_data.enable_video = false;
723 sim_data.memory_type = (PCI_SLOT_READ_LONG(1, 0x7c) >> 12) & 1;
724 sim_data.memory_width = 64;
725 sim_data.mem_latency = 3;
726 sim_data.mem_page_miss = 10;
728 sim_data.enable_video = (pNv->Architecture != NV_ARCH_04);
729 sim_data.memory_type = nvReadFB(pNv, NV_PFB_CFG0) & 0x1;
730 sim_data.memory_width = (nvReadEXTDEV(pNv, NV_PEXTDEV_BOOT_0) & 0x10) ? 128 : 64;
731 sim_data.mem_latency = cfg1 & 0xf;
732 sim_data.mem_page_miss = ((cfg1 >> 4) & 0xf) + ((cfg1 >> 31) & 0x1);
735 if (pNv->Architecture == NV_ARCH_04)
736 nv4CalcArbitration(&fifo_data, &sim_data);
738 nv10CalcArbitration(&fifo_data, &sim_data);
740 if (fifo_data.valid) {
741 int b = fifo_data.graphics_burst_size >> 4;
745 *lwm = fifo_data.graphics_lwm >> 3;
749 void nv30UpdateArbitrationSettings(uint8_t *burst, uint16_t *lwm)
751 unsigned int fifo_size, burst_size, graphics_lwm;
755 graphics_lwm = fifo_size - burst_size;
759 while (burst_size >>= 1)
761 *lwm = graphics_lwm >> 3;
764 /****************************************************************************\
766 * RIVA Mode State Routines *
768 \****************************************************************************/
771 * Calculate the Video Clock parameters for the PLL.
773 static void CalcVClock (
780 unsigned lowM, highM;
781 unsigned DeltaNew, DeltaOld;
785 DeltaOld = 0xFFFFFFFF;
787 VClk = (unsigned)clockIn;
789 if (pNv->CrystalFreqKHz == 13500) {
797 for (P = 0; P <= 4; P++) {
799 if ((Freq >= 128000) && (Freq <= 350000)) {
800 for (M = lowM; M <= highM; M++) {
801 N = ((VClk << P) * M) / pNv->CrystalFreqKHz;
803 Freq = ((pNv->CrystalFreqKHz * N) / M) >> P;
805 DeltaNew = Freq - VClk;
807 DeltaNew = VClk - Freq;
808 if (DeltaNew < DeltaOld) {
809 *pllOut = (P << 16) | (N << 8) | M;
819 static void CalcVClock2Stage (
827 unsigned DeltaNew, DeltaOld;
831 DeltaOld = 0xFFFFFFFF;
833 *pllBOut = 0x80000401; /* fixed at x4 for now */
835 VClk = (unsigned)clockIn;
837 for (P = 0; P <= 6; P++) {
839 if ((Freq >= 400000) && (Freq <= 1000000)) {
840 for (M = 1; M <= 13; M++) {
841 N = ((VClk << P) * M) / (pNv->CrystalFreqKHz << 2);
842 if((N >= 5) && (N <= 255)) {
843 Freq = (((pNv->CrystalFreqKHz << 2) * N) / M) >> P;
845 DeltaNew = Freq - VClk;
847 DeltaNew = VClk - Freq;
848 if (DeltaNew < DeltaOld) {
849 *pllOut = (P << 16) | (N << 8) | M;
860 * Calculate extended mode parameters (SVGA) and save in a
861 * mode state structure.
863 void NVCalcStateExt (
865 RIVA_HW_STATE *state,
874 NVPtr pNv = NVPTR(pScrn);
875 int pixelDepth, VClk = 0;
879 * Save mode parameters.
881 state->bpp = bpp; /* this is not bitsPerPixel, it's 8,15,16,32 */
882 state->width = width;
883 state->height = height;
885 * Extended RIVA registers.
887 pixelDepth = (bpp + 1)/8;
889 CalcVClock2Stage(dotClock, &VClk, &state->pll, &state->pllB, pNv);
891 CalcVClock(dotClock, &VClk, &state->pll, pNv);
893 switch (pNv->Architecture)
896 nv4_10UpdateArbitrationSettings(pScrn, VClk,
898 &(state->arbitration0),
899 &(state->arbitration1));
900 state->cursor0 = 0x00;
901 state->cursor1 = 0xbC;
902 if (flags & V_DBLSCAN)
904 state->cursor2 = 0x00000000;
905 state->pllsel = 0x10000700;
906 state->general = bpp == 16 ? 0x00101100 : 0x00100100;
907 state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
913 if(((pNv->Chipset & 0xfff0) == CHIPSET_C51) ||
914 ((pNv->Chipset & 0xfff0) == CHIPSET_C512))
916 state->arbitration0 = 128;
917 state->arbitration1 = 0x0480;
918 } else if(pNv->Architecture < NV_ARCH_30) {
919 nv4_10UpdateArbitrationSettings(pScrn, VClk,
921 &(state->arbitration0),
922 &(state->arbitration1));
924 nv30UpdateArbitrationSettings(&(state->arbitration0),
925 &(state->arbitration1));
927 CursorStart = pNv->Cursor->offset;
928 state->cursor0 = 0x80 | (CursorStart >> 17);
929 state->cursor1 = (CursorStart >> 11) << 2;
930 state->cursor2 = CursorStart >> 24;
931 if (flags & V_DBLSCAN)
933 state->pllsel = 0x10000700;
934 state->general = bpp == 16 ? 0x00101100 : 0x00100100;
935 state->repaint1 = hDisplaySize < 1280 ? 0x04 : 0x00;
939 if(bpp != 8) /* DirectColor */
940 state->general |= 0x00000030;
942 state->repaint0 = (((width / 8) * pixelDepth) & 0x700) >> 3;
943 state->pixel = (pixelDepth > 2) ? 3 : pixelDepth;
947 void NVLoadStateExt (
952 NVPtr pNv = NVPTR(pScrn);
955 if(pNv->Architecture >= NV_ARCH_40) {
956 switch(pNv->Chipset & 0xfff0) {
965 temp = nvReadCurRAMDAC(pNv, NV_RAMDAC_TEST_CONTROL);
966 nvWriteCurRAMDAC(pNv, NV_RAMDAC_TEST_CONTROL, temp | 0x00100000);
973 if(pNv->Architecture >= NV_ARCH_10) {
975 NVWriteCRTC(pNv, 0, NV_CRTC_FSEL, state->head);
976 NVWriteCRTC(pNv, 1, NV_CRTC_FSEL, state->head2);
978 temp = nvReadCurRAMDAC(pNv, NV_RAMDAC_NV10_CURSYNC);
979 nvWriteCurRAMDAC(pNv, NV_RAMDAC_NV10_CURSYNC, temp | (1 << 25));
981 nvWriteVIDEO(pNv, NV_PVIDEO_STOP, 1);
982 nvWriteVIDEO(pNv, NV_PVIDEO_INTR_EN, 0);
983 nvWriteVIDEO(pNv, NV_PVIDEO_OFFSET_BUFF(0), 0);
984 nvWriteVIDEO(pNv, NV_PVIDEO_OFFSET_BUFF(1), 0);
985 nvWriteVIDEO(pNv, NV_PVIDEO_LIMIT(0), pNv->VRAMPhysicalSize - 1);
986 nvWriteVIDEO(pNv, NV_PVIDEO_LIMIT(1), pNv->VRAMPhysicalSize - 1);
987 nvWriteVIDEO(pNv, NV_PVIDEO_UVPLANE_LIMIT(0), pNv->VRAMPhysicalSize - 1);
988 nvWriteVIDEO(pNv, NV_PVIDEO_UVPLANE_LIMIT(1), pNv->VRAMPhysicalSize - 1);
989 nvWriteMC(pNv, NV_PBUS_POWERCTRL_2, 0);
991 nvWriteCurCRTC(pNv, NV_CRTC_CURSOR_CONFIG, state->cursorConfig);
992 nvWriteCurCRTC(pNv, NV_CRTC_0830, state->displayV - 3);
993 nvWriteCurCRTC(pNv, NV_CRTC_0834, state->displayV - 1);
996 if((pNv->Chipset & 0x0ff0) == CHIPSET_NV11) {
997 nvWriteCurRAMDAC(pNv, NV_RAMDAC_DITHER_NV11, state->dither);
1000 nvWriteCurRAMDAC(pNv, NV_RAMDAC_FP_DITHER, state->dither);
1003 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FP_HTIMING, state->timingH);
1004 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FP_VTIMING, state->timingV);
1005 nvWriteCurVGA(pNv, NV_VGA_CRTCX_BUFFER, 0xfa);
1008 nvWriteCurVGA(pNv, NV_VGA_CRTCX_EXTRA, state->extra);
1011 nvWriteCurVGA(pNv, NV_VGA_CRTCX_REPAINT0, state->repaint0);
1012 nvWriteCurVGA(pNv, NV_VGA_CRTCX_REPAINT1, state->repaint1);
1013 nvWriteCurVGA(pNv, NV_VGA_CRTCX_LSR, state->screen);
1014 nvWriteCurVGA(pNv, NV_VGA_CRTCX_PIXEL, state->pixel);
1015 nvWriteCurVGA(pNv, NV_VGA_CRTCX_HEB, state->horiz);
1016 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FIFO1, state->fifo);
1017 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FIFO0, state->arbitration0);
1018 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FIFO_LWM, state->arbitration1);
1019 if(pNv->Architecture >= NV_ARCH_30) {
1020 nvWriteCurVGA(pNv, NV_VGA_CRTCX_FIFO_LWM_NV30, state->arbitration1 >> 8);
1023 nvWriteCurVGA(pNv, NV_VGA_CRTCX_CURCTL0, state->cursor0);
1024 nvWriteCurVGA(pNv, NV_VGA_CRTCX_CURCTL1, state->cursor1);
1025 if(pNv->Architecture == NV_ARCH_40) { /* HW bug */
1026 volatile CARD32 curpos = nvReadCurRAMDAC(pNv, NV_RAMDAC_CURSOR_POS);
1027 nvWriteCurRAMDAC(pNv, NV_RAMDAC_CURSOR_POS, curpos);
1029 nvWriteCurVGA(pNv, NV_VGA_CRTCX_CURCTL2, state->cursor2);
1030 nvWriteCurVGA(pNv, NV_VGA_CRTCX_INTERLACE, state->interlace);
1032 if(!pNv->FlatPanel) {
1033 NVWriteRAMDAC(pNv, 0, NV_RAMDAC_PLL_SELECT, state->pllsel);
1034 NVWriteRAMDAC(pNv, 0, NV_RAMDAC_VPLL, state->vpll);
1036 NVWriteRAMDAC(pNv, 0, NV_RAMDAC_VPLL2, state->vpll2);
1037 if(pNv->twoStagePLL) {
1038 NVWriteRAMDAC(pNv, 0, NV_RAMDAC_VPLL_B, state->vpllB);
1039 NVWriteRAMDAC(pNv, 0, NV_RAMDAC_VPLL2_B, state->vpll2B);
1042 nvWriteCurRAMDAC(pNv, NV_RAMDAC_FP_CONTROL, state->scale);
1043 nvWriteCurRAMDAC(pNv, NV_RAMDAC_FP_HCRTC, state->crtcSync);
1045 nvWriteCurRAMDAC(pNv, NV_RAMDAC_GENERAL_CONTROL, state->general);
1047 nvWriteCurCRTC(pNv, NV_CRTC_INTR_EN_0, 0);
1048 nvWriteCurCRTC(pNv, NV_CRTC_INTR_0, NV_CRTC_INTR_VBLANK);
1051 void NVUnloadStateExt
1054 RIVA_HW_STATE *state
1057 state->repaint0 = nvReadCurVGA(pNv, NV_VGA_CRTCX_REPAINT0);
1058 state->repaint1 = nvReadCurVGA(pNv, NV_VGA_CRTCX_REPAINT1);
1059 state->screen = nvReadCurVGA(pNv, NV_VGA_CRTCX_LSR);
1060 state->pixel = nvReadCurVGA(pNv, NV_VGA_CRTCX_PIXEL);
1061 state->horiz = nvReadCurVGA(pNv, NV_VGA_CRTCX_HEB);
1062 state->fifo = nvReadCurVGA(pNv, NV_VGA_CRTCX_FIFO1);
1063 state->arbitration0 = nvReadCurVGA(pNv, NV_VGA_CRTCX_FIFO0);
1064 state->arbitration1 = nvReadCurVGA(pNv, NV_VGA_CRTCX_FIFO_LWM);
1065 if(pNv->Architecture >= NV_ARCH_30) {
1066 state->arbitration1 |= (nvReadCurVGA(pNv, NV_VGA_CRTCX_FIFO_LWM_NV30) & 1) << 8;
1068 state->cursor0 = nvReadCurVGA(pNv, NV_VGA_CRTCX_CURCTL0);
1069 state->cursor1 = nvReadCurVGA(pNv, NV_VGA_CRTCX_CURCTL1);
1070 state->cursor2 = nvReadCurVGA(pNv, NV_VGA_CRTCX_CURCTL2);
1071 state->interlace = nvReadCurVGA(pNv, NV_VGA_CRTCX_INTERLACE);
1073 state->vpll = NVReadRAMDAC(pNv, 0, NV_RAMDAC_VPLL);
1075 state->vpll2 = NVReadRAMDAC(pNv, 0, NV_RAMDAC_VPLL2);
1076 if(pNv->twoStagePLL) {
1077 state->vpllB = NVReadRAMDAC(pNv, 0, NV_RAMDAC_VPLL_B);
1078 state->vpll2B = NVReadRAMDAC(pNv, 0, NV_RAMDAC_VPLL2_B);
1080 state->pllsel = NVReadRAMDAC(pNv, 0, NV_RAMDAC_PLL_SELECT);
1081 state->general = nvReadCurRAMDAC(pNv, NV_RAMDAC_GENERAL_CONTROL);
1082 state->scale = nvReadCurRAMDAC(pNv, NV_RAMDAC_FP_CONTROL);
1084 if(pNv->Architecture >= NV_ARCH_10) {
1086 state->head = NVReadCRTC(pNv, 0, NV_CRTC_FSEL);
1087 state->head2 = NVReadCRTC(pNv, 1, NV_CRTC_FSEL);
1088 state->crtcOwner = nvReadCurVGA(pNv, NV_VGA_CRTCX_OWNER);
1090 state->extra = nvReadCurVGA(pNv, NV_VGA_CRTCX_EXTRA);
1092 state->cursorConfig = nvReadCurCRTC(pNv, NV_CRTC_CURSOR_CONFIG);
1094 if((pNv->Chipset & 0x0ff0) == CHIPSET_NV11) {
1095 state->dither = nvReadCurRAMDAC(pNv, NV_RAMDAC_DITHER_NV11);
1098 state->dither = nvReadCurRAMDAC(pNv, NV_RAMDAC_FP_DITHER);
1101 if(pNv->FlatPanel) {
1102 state->timingH = nvReadCurVGA(pNv, NV_VGA_CRTCX_FP_HTIMING);
1103 state->timingV = nvReadCurVGA(pNv, NV_VGA_CRTCX_FP_VTIMING);
1107 if(pNv->FlatPanel) {
1108 state->crtcSync = nvReadCurRAMDAC(pNv, NV_RAMDAC_FP_HCRTC);
1112 void NVSetStartAddress (
1117 nvWriteCurCRTC(pNv, NV_CRTC_START, start);
1120 uint32_t nv_pitch_align(NVPtr pNv, uint32_t width, int bpp)
1129 /* Alignment requirements taken from the Haiku driver */
1130 if (pNv->Architecture == NV_ARCH_04)
1131 mask = 128 / bpp - 1;
1133 mask = 512 / bpp - 1;
1135 return (width + mask) & ~mask;
1138 #define VGA_SEQ_PLANE_WRITE 0x02
1139 #define VGA_SEQ_MEMORY_MODE 0x04
1140 #define VGA_GFX_PLANE_READ 0x04
1141 #define VGA_GFX_MODE 0x05
1142 #define VGA_GFX_MISC 0x06
1144 void nv_save_restore_vga_fonts(ScrnInfoPtr pScrn, bool save)
1146 NVPtr pNv = NVPTR(pScrn);
1148 uint8_t misc, gr4, gr5, gr6, seq2, seq4;
1151 NVSetEnablePalette(pNv, 0, true);
1152 graphicsmode = NVReadVgaAttr(pNv, 0, 0x10) & 1;
1153 NVSetEnablePalette(pNv, 0, false);
1155 if (graphicsmode) /* graphics mode => framebuffer => no need to save */
1158 xf86DrvMsg(pScrn->scrnIndex, X_INFO, "%sing VGA fonts\n", save ? "Sav" : "Restor");
1160 NVBlankScreen(pScrn, 1, true);
1161 NVBlankScreen(pScrn, 0, true);
1163 /* save control regs */
1164 misc = NVReadPVIO(pNv, 0, VGA_MISC_OUT_R);
1165 seq2 = NVReadVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE);
1166 seq4 = NVReadVgaSeq(pNv, 0, VGA_SEQ_MEMORY_MODE);
1167 gr4 = NVReadVgaGr(pNv, 0, VGA_GFX_PLANE_READ);
1168 gr5 = NVReadVgaGr(pNv, 0, VGA_GFX_MODE);
1169 gr6 = NVReadVgaGr(pNv, 0, VGA_GFX_MISC);
1171 NVWritePVIO(pNv, 0, VGA_MISC_OUT_W, 0x67);
1172 NVWriteVgaSeq(pNv, 0, VGA_SEQ_MEMORY_MODE, 0x6);
1173 NVWriteVgaGr(pNv, 0, VGA_GFX_MODE, 0x0);
1174 NVWriteVgaGr(pNv, 0, VGA_GFX_MISC, 0x5);
1176 /* store font in plane 0 */
1177 NVWriteVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE, 0x1);
1178 NVWriteVgaGr(pNv, 0, VGA_GFX_PLANE_READ, 0x0);
1179 for (i = 0; i < 16384; i++)
1181 pNv->saved_vga_font[0][i] = MMIO_IN32(pNv->FB_BAR, i * 4);
1183 MMIO_OUT32(pNv->FB_BAR, i * 4, pNv->saved_vga_font[0][i]);
1185 /* store font in plane 1 */
1186 NVWriteVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE, 0x2);
1187 NVWriteVgaGr(pNv, 0, VGA_GFX_PLANE_READ, 0x1);
1188 for (i = 0; i < 16384; i++)
1190 pNv->saved_vga_font[1][i] = MMIO_IN32(pNv->FB_BAR, i * 4);
1192 MMIO_OUT32(pNv->FB_BAR, i * 4, pNv->saved_vga_font[1][i]);
1194 /* store font in plane 2 */
1195 NVWriteVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE, 0x4);
1196 NVWriteVgaGr(pNv, 0, VGA_GFX_PLANE_READ, 0x2);
1197 for (i = 0; i < 16384; i++)
1199 pNv->saved_vga_font[2][i] = MMIO_IN32(pNv->FB_BAR, i * 4);
1201 MMIO_OUT32(pNv->FB_BAR, i * 4, pNv->saved_vga_font[2][i]);
1203 /* store font in plane 3 */
1204 NVWriteVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE, 0x8);
1205 NVWriteVgaGr(pNv, 0, VGA_GFX_PLANE_READ, 0x3);
1206 for (i = 0; i < 16384; i++)
1208 pNv->saved_vga_font[3][i] = MMIO_IN32(pNv->FB_BAR, i * 4);
1210 MMIO_OUT32(pNv->FB_BAR, i * 4, pNv->saved_vga_font[3][i]);
1212 /* restore control regs */
1213 NVWritePVIO(pNv, 0, VGA_MISC_OUT_W, misc);
1214 NVWriteVgaGr(pNv, 0, VGA_GFX_PLANE_READ, gr4);
1215 NVWriteVgaGr(pNv, 0, VGA_GFX_MODE, gr5);
1216 NVWriteVgaGr(pNv, 0, VGA_GFX_MISC, gr6);
1217 NVWriteVgaSeq(pNv, 0, VGA_SEQ_PLANE_WRITE, seq2);
1218 NVWriteVgaSeq(pNv, 0, VGA_SEQ_MEMORY_MODE, seq4);
1221 NVBlankScreen(pScrn, 1, false);
1222 NVBlankScreen(pScrn, 0, false);