1/*
2 * Copyright 2006 Dave Airlie
3 * Copyright 2007 Maarten Maathuis
4 * Copyright 2007-2009 Stuart Bennett
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
21 * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 */
24
25#include "nouveau_drv.h"
26#include "hw.h"
27
28#include <subdev/bios/pll.h>
29#include <nvif/timer.h>
30
31#define CHIPSET_NFORCE 0x01a0
32#define CHIPSET_NFORCE2 0x01f0
33
34/*
35 * misc hw access wrappers/control functions
36 */
37
38void
39NVWriteVgaSeq(struct drm_device *dev, int head, uint8_t index, uint8_t value)
40{
41 NVWritePRMVIO(dev, head, NV_PRMVIO_SRX, index);
42 NVWritePRMVIO(dev, head, NV_PRMVIO_SR, value);
43}
44
45uint8_t
46NVReadVgaSeq(struct drm_device *dev, int head, uint8_t index)
47{
48 NVWritePRMVIO(dev, head, NV_PRMVIO_SRX, index);
49 return NVReadPRMVIO(dev, head, NV_PRMVIO_SR);
50}
51
52void
53NVWriteVgaGr(struct drm_device *dev, int head, uint8_t index, uint8_t value)
54{
55 NVWritePRMVIO(dev, head, NV_PRMVIO_GRX, index);
56 NVWritePRMVIO(dev, head, NV_PRMVIO_GX, value);
57}
58
59uint8_t
60NVReadVgaGr(struct drm_device *dev, int head, uint8_t index)
61{
62 NVWritePRMVIO(dev, head, NV_PRMVIO_GRX, index);
63 return NVReadPRMVIO(dev, head, NV_PRMVIO_GX);
64}
65
66/* CR44 takes values 0 (head A), 3 (head B) and 4 (heads tied)
67 * it affects only the 8 bit vga io regs, which we access using mmio at
68 * 0xc{0,2}3c*, 0x60{1,3}3*, and 0x68{1,3}3d*
69 * in general, the set value of cr44 does not matter: reg access works as
70 * expected and values can be set for the appropriate head by using a 0x2000
71 * offset as required
72 * however:
73 * a) pre nv40, the head B range of PRMVIO regs at 0xc23c* was not exposed and
74 * cr44 must be set to 0 or 3 for accessing values on the correct head
75 * through the common 0xc03c* addresses
76 * b) in tied mode (4) head B is programmed to the values set on head A, and
77 * access using the head B addresses can have strange results, ergo we leave
78 * tied mode in init once we know to what cr44 should be restored on exit
79 *
80 * the owner parameter is slightly abused:
81 * 0 and 1 are treated as head values and so the set value is (owner * 3)
82 * other values are treated as literal values to set
83 */
84void
85NVSetOwner(struct drm_device *dev, int owner)
86{
87 struct nouveau_drm *drm = nouveau_drm(dev);
88
89 if (owner == 1)
90 owner *= 3;
91
92 if (drm->client.device.info.chipset == 0x11) {
93 /* This might seem stupid, but the blob does it and
94 * omitting it often locks the system up.
95 */
96 NVReadVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX);
97 NVReadVgaCrtc(dev, 1, NV_CIO_SR_LOCK_INDEX);
98 }
99
100 /* CR44 is always changed on CRTC0 */
101 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_44, owner);
102
103 if (drm->client.device.info.chipset == 0x11) { /* set me harder */
104 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_2E, owner);
105 NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_2E, owner);
106 }
107}
108
109void
110NVBlankScreen(struct drm_device *dev, int head, bool blank)
111{
112 unsigned char seq1;
113
114 if (nv_two_heads(dev))
115 NVSetOwner(dev, owner: head);
116
117 seq1 = NVReadVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX);
118
119 NVVgaSeqReset(dev, head, true);
120 if (blank)
121 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 | 0x20);
122 else
123 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 & ~0x20);
124 NVVgaSeqReset(dev, head, false);
125}
126
127/*
128 * PLL getting
129 */
130
131static void
132nouveau_hw_decode_pll(struct drm_device *dev, uint32_t reg1, uint32_t pll1,
133 uint32_t pll2, struct nvkm_pll_vals *pllvals)
134{
135 struct nouveau_drm *drm = nouveau_drm(dev);
136
137 /* to force parsing as single stage (i.e. nv40 vplls) pass pll2 as 0 */
138
139 /* log2P is & 0x7 as never more than 7, and nv30/35 only uses 3 bits */
140 pllvals->log2P = (pll1 >> 16) & 0x7;
141 pllvals->N2 = pllvals->M2 = 1;
142
143 if (reg1 <= 0x405c) {
144 pllvals->NM1 = pll2 & 0xffff;
145 /* single stage NVPLL and VPLLs use 1 << 8, MPLL uses 1 << 12 */
146 if (!(pll1 & 0x1100))
147 pllvals->NM2 = pll2 >> 16;
148 } else {
149 pllvals->NM1 = pll1 & 0xffff;
150 if (nv_two_reg_pll(dev) && pll2 & NV31_RAMDAC_ENABLE_VCO2)
151 pllvals->NM2 = pll2 & 0xffff;
152 else if (drm->client.device.info.chipset == 0x30 || drm->client.device.info.chipset == 0x35) {
153 pllvals->M1 &= 0xf; /* only 4 bits */
154 if (pll1 & NV30_RAMDAC_ENABLE_VCO2) {
155 pllvals->M2 = (pll1 >> 4) & 0x7;
156 pllvals->N2 = ((pll1 >> 21) & 0x18) |
157 ((pll1 >> 19) & 0x7);
158 }
159 }
160 }
161}
162
163int
164nouveau_hw_get_pllvals(struct drm_device *dev, enum nvbios_pll_type plltype,
165 struct nvkm_pll_vals *pllvals)
166{
167 struct nouveau_drm *drm = nouveau_drm(dev);
168 struct nvif_object *device = &drm->client.device.object;
169 struct nvkm_bios *bios = nvxx_bios(&drm->client.device);
170 uint32_t reg1, pll1, pll2 = 0;
171 struct nvbios_pll pll_lim;
172 int ret;
173
174 ret = nvbios_pll_parse(bios, plltype, &pll_lim);
175 if (ret || !(reg1 = pll_lim.reg))
176 return -ENOENT;
177
178 pll1 = nvif_rd32(device, reg1);
179 if (reg1 <= 0x405c)
180 pll2 = nvif_rd32(device, reg1 + 4);
181 else if (nv_two_reg_pll(dev)) {
182 uint32_t reg2 = reg1 + (reg1 == NV_RAMDAC_VPLL2 ? 0x5c : 0x70);
183
184 pll2 = nvif_rd32(device, reg2);
185 }
186
187 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CELSIUS && reg1 >= NV_PRAMDAC_VPLL_COEFF) {
188 uint32_t ramdac580 = NVReadRAMDAC(dev, 0, NV_PRAMDAC_580);
189
190 /* check whether vpll has been forced into single stage mode */
191 if (reg1 == NV_PRAMDAC_VPLL_COEFF) {
192 if (ramdac580 & NV_RAMDAC_580_VPLL1_ACTIVE)
193 pll2 = 0;
194 } else
195 if (ramdac580 & NV_RAMDAC_580_VPLL2_ACTIVE)
196 pll2 = 0;
197 }
198
199 nouveau_hw_decode_pll(dev, reg1, pll1, pll2, pllvals);
200 pllvals->refclk = pll_lim.refclk;
201 return 0;
202}
203
204int
205nouveau_hw_pllvals_to_clk(struct nvkm_pll_vals *pv)
206{
207 /* Avoid divide by zero if called at an inappropriate time */
208 if (!pv->M1 || !pv->M2)
209 return 0;
210
211 return pv->N1 * pv->N2 * pv->refclk / (pv->M1 * pv->M2) >> pv->log2P;
212}
213
214int
215nouveau_hw_get_clock(struct drm_device *dev, enum nvbios_pll_type plltype)
216{
217 struct pci_dev *pdev = to_pci_dev(dev->dev);
218 struct nvkm_pll_vals pllvals;
219 int ret;
220 int domain;
221
222 domain = pci_domain_nr(pdev->bus);
223
224 if (plltype == PLL_MEMORY &&
225 (pdev->device & 0x0ff0) == CHIPSET_NFORCE) {
226 uint32_t mpllP;
227 pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 3),
228 0x6c, &mpllP);
229 mpllP = (mpllP >> 8) & 0xf;
230 if (!mpllP)
231 mpllP = 4;
232
233 return 400000 / mpllP;
234 } else
235 if (plltype == PLL_MEMORY &&
236 (pdev->device & 0xff0) == CHIPSET_NFORCE2) {
237 uint32_t clock;
238
239 pci_read_config_dword(pci_get_domain_bus_and_slot(domain, 0, 5),
240 0x4c, &clock);
241 return clock / 1000;
242 }
243
244 ret = nouveau_hw_get_pllvals(dev, plltype: plltype, pllvals: &pllvals);
245 if (ret)
246 return ret;
247
248 return nouveau_hw_pllvals_to_clk(pv: &pllvals);
249}
250
251static void
252nouveau_hw_fix_bad_vpll(struct drm_device *dev, int head)
253{
254 /* the vpll on an unused head can come up with a random value, way
255 * beyond the pll limits. for some reason this causes the chip to
256 * lock up when reading the dac palette regs, so set a valid pll here
257 * when such a condition detected. only seen on nv11 to date
258 */
259
260 struct nouveau_drm *drm = nouveau_drm(dev);
261 struct nvif_device *device = &drm->client.device;
262 struct nvkm_clk *clk = nvxx_clk(device);
263 struct nvkm_bios *bios = nvxx_bios(device);
264 struct nvbios_pll pll_lim;
265 struct nvkm_pll_vals pv;
266 enum nvbios_pll_type pll = head ? PLL_VPLL1 : PLL_VPLL0;
267
268 if (nvbios_pll_parse(bios, pll, &pll_lim))
269 return;
270 nouveau_hw_get_pllvals(dev, plltype: pll, pllvals: &pv);
271
272 if (pv.M1 >= pll_lim.vco1.min_m && pv.M1 <= pll_lim.vco1.max_m &&
273 pv.N1 >= pll_lim.vco1.min_n && pv.N1 <= pll_lim.vco1.max_n &&
274 pv.log2P <= pll_lim.max_p)
275 return;
276
277 NV_WARN(drm, "VPLL %d outwith limits, attempting to fix\n", head + 1);
278
279 /* set lowest clock within static limits */
280 pv.M1 = pll_lim.vco1.max_m;
281 pv.N1 = pll_lim.vco1.min_n;
282 pv.log2P = pll_lim.max_p_usable;
283 clk->pll_prog(clk, pll_lim.reg, &pv);
284}
285
286/*
287 * vga font save/restore
288 */
289
290static void nouveau_vga_font_io(struct drm_device *dev,
291 void __iomem *iovram,
292 bool save, unsigned plane)
293{
294 unsigned i;
295
296 NVWriteVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX, 1 << plane);
297 NVWriteVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX, plane);
298 for (i = 0; i < 16384; i++) {
299 if (save) {
300 nv04_display(dev)->saved_vga_font[plane][i] =
301 ioread32_native(iovram + i * 4);
302 } else {
303 iowrite32_native(nv04_display(dev)->saved_vga_font[plane][i],
304 iovram + i * 4);
305 }
306 }
307}
308
309void
310nouveau_hw_save_vga_fonts(struct drm_device *dev, bool save)
311{
312 struct nouveau_drm *drm = nouveau_drm(dev);
313 struct pci_dev *pdev = to_pci_dev(dev->dev);
314 uint8_t misc, gr4, gr5, gr6, seq2, seq4;
315 bool graphicsmode;
316 unsigned plane;
317 void __iomem *iovram;
318
319 if (nv_two_heads(dev))
320 NVSetOwner(dev, owner: 0);
321
322 NVSetEnablePalette(dev, 0, true);
323 graphicsmode = NVReadVgaAttr(dev, 0, NV_CIO_AR_MODE_INDEX) & 1;
324 NVSetEnablePalette(dev, 0, false);
325
326 if (graphicsmode) /* graphics mode => framebuffer => no need to save */
327 return;
328
329 NV_INFO(drm, "%sing VGA fonts\n", save ? "Sav" : "Restor");
330
331 /* map first 64KiB of VRAM, holds VGA fonts etc */
332 iovram = ioremap(pci_resource_start(pdev, 1), 65536);
333 if (!iovram) {
334 NV_ERROR(drm, "Failed to map VRAM, "
335 "cannot save/restore VGA fonts.\n");
336 return;
337 }
338
339 if (nv_two_heads(dev))
340 NVBlankScreen(dev, 1, true);
341 NVBlankScreen(dev, 0, true);
342
343 /* save control regs */
344 misc = NVReadPRMVIO(dev, 0, NV_PRMVIO_MISC__READ);
345 seq2 = NVReadVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX);
346 seq4 = NVReadVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX);
347 gr4 = NVReadVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX);
348 gr5 = NVReadVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX);
349 gr6 = NVReadVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX);
350
351 NVWritePRMVIO(dev, 0, NV_PRMVIO_MISC__WRITE, 0x67);
352 NVWriteVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX, 0x6);
353 NVWriteVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX, 0x0);
354 NVWriteVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX, 0x5);
355
356 /* store font in planes 0..3 */
357 for (plane = 0; plane < 4; plane++)
358 nouveau_vga_font_io(dev, iovram, save, plane);
359
360 /* restore control regs */
361 NVWritePRMVIO(dev, 0, NV_PRMVIO_MISC__WRITE, misc);
362 NVWriteVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX, gr4);
363 NVWriteVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX, gr5);
364 NVWriteVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX, gr6);
365 NVWriteVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX, seq2);
366 NVWriteVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX, seq4);
367
368 if (nv_two_heads(dev))
369 NVBlankScreen(dev, 1, false);
370 NVBlankScreen(dev, 0, false);
371
372 iounmap(iovram);
373}
374
375/*
376 * mode state save/load
377 */
378
379static void
380rd_cio_state(struct drm_device *dev, int head,
381 struct nv04_crtc_reg *crtcstate, int index)
382{
383 crtcstate->CRTC[index] = NVReadVgaCrtc(dev, head, index);
384}
385
386static void
387wr_cio_state(struct drm_device *dev, int head,
388 struct nv04_crtc_reg *crtcstate, int index)
389{
390 NVWriteVgaCrtc(dev, head, index, crtcstate->CRTC[index]);
391}
392
393static void
394nv_save_state_ramdac(struct drm_device *dev, int head,
395 struct nv04_mode_state *state)
396{
397 struct nouveau_drm *drm = nouveau_drm(dev);
398 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
399 int i;
400
401 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
402 regp->nv10_cursync = NVReadRAMDAC(dev, head, NV_RAMDAC_NV10_CURSYNC);
403
404 nouveau_hw_get_pllvals(dev, head ? PLL_VPLL1 : PLL_VPLL0, &regp->pllvals);
405 state->pllsel = NVReadRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT);
406 if (nv_two_heads(dev))
407 state->sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK);
408 if (drm->client.device.info.chipset == 0x11)
409 regp->dither = NVReadRAMDAC(dev, head, NV_RAMDAC_DITHER_NV11);
410
411 regp->ramdac_gen_ctrl = NVReadRAMDAC(dev, head, NV_PRAMDAC_GENERAL_CONTROL);
412
413 if (nv_gf4_disp_arch(dev))
414 regp->ramdac_630 = NVReadRAMDAC(dev, head, NV_PRAMDAC_630);
415 if (drm->client.device.info.chipset >= 0x30)
416 regp->ramdac_634 = NVReadRAMDAC(dev, head, NV_PRAMDAC_634);
417
418 regp->tv_setup = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP);
419 regp->tv_vtotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VTOTAL);
420 regp->tv_vskew = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VSKEW);
421 regp->tv_vsync_delay = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VSYNC_DELAY);
422 regp->tv_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HTOTAL);
423 regp->tv_hskew = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSKEW);
424 regp->tv_hsync_delay = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY);
425 regp->tv_hsync_delay2 = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY2);
426
427 for (i = 0; i < 7; i++) {
428 uint32_t ramdac_reg = NV_PRAMDAC_FP_VDISPLAY_END + (i * 4);
429 regp->fp_vert_regs[i] = NVReadRAMDAC(dev, head, ramdac_reg);
430 regp->fp_horiz_regs[i] = NVReadRAMDAC(dev, head, ramdac_reg + 0x20);
431 }
432
433 if (nv_gf4_disp_arch(dev)) {
434 regp->dither = NVReadRAMDAC(dev, head, NV_RAMDAC_FP_DITHER);
435 for (i = 0; i < 3; i++) {
436 regp->dither_regs[i] = NVReadRAMDAC(dev, head, NV_PRAMDAC_850 + i * 4);
437 regp->dither_regs[i + 3] = NVReadRAMDAC(dev, head, NV_PRAMDAC_85C + i * 4);
438 }
439 }
440
441 regp->fp_control = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL);
442 regp->fp_debug_0 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_0);
443 if (!nv_gf4_disp_arch(dev) && head == 0) {
444 /* early chips don't allow access to PRAMDAC_TMDS_* without
445 * the head A FPCLK on (nv11 even locks up) */
446 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_FP_DEBUG_0, regp->fp_debug_0 &
447 ~NV_PRAMDAC_FP_DEBUG_0_PWRDOWN_FPCLK);
448 }
449 regp->fp_debug_1 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1);
450 regp->fp_debug_2 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_2);
451
452 regp->fp_margin_color = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_MARGIN_COLOR);
453
454 if (nv_gf4_disp_arch(dev))
455 regp->ramdac_8c0 = NVReadRAMDAC(dev, head, NV_PRAMDAC_8C0);
456
457 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE) {
458 regp->ramdac_a20 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A20);
459 regp->ramdac_a24 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A24);
460 regp->ramdac_a34 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A34);
461
462 for (i = 0; i < 38; i++)
463 regp->ctv_regs[i] = NVReadRAMDAC(dev, head,
464 NV_PRAMDAC_CTV + 4*i);
465 }
466}
467
468static void
469nv_load_state_ramdac(struct drm_device *dev, int head,
470 struct nv04_mode_state *state)
471{
472 struct nouveau_drm *drm = nouveau_drm(dev);
473 struct nvkm_clk *clk = nvxx_clk(&drm->client.device);
474 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
475 uint32_t pllreg = head ? NV_RAMDAC_VPLL2 : NV_PRAMDAC_VPLL_COEFF;
476 int i;
477
478 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
479 NVWriteRAMDAC(dev, head, NV_RAMDAC_NV10_CURSYNC, regp->nv10_cursync);
480
481 clk->pll_prog(clk, pllreg, &regp->pllvals);
482 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel);
483 if (nv_two_heads(dev))
484 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, state->sel_clk);
485 if (drm->client.device.info.chipset == 0x11)
486 NVWriteRAMDAC(dev, head, NV_RAMDAC_DITHER_NV11, regp->dither);
487
488 NVWriteRAMDAC(dev, head, NV_PRAMDAC_GENERAL_CONTROL, regp->ramdac_gen_ctrl);
489
490 if (nv_gf4_disp_arch(dev))
491 NVWriteRAMDAC(dev, head, NV_PRAMDAC_630, regp->ramdac_630);
492 if (drm->client.device.info.chipset >= 0x30)
493 NVWriteRAMDAC(dev, head, NV_PRAMDAC_634, regp->ramdac_634);
494
495 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, regp->tv_setup);
496 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VTOTAL, regp->tv_vtotal);
497 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VSKEW, regp->tv_vskew);
498 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VSYNC_DELAY, regp->tv_vsync_delay);
499 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HTOTAL, regp->tv_htotal);
500 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSKEW, regp->tv_hskew);
501 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY, regp->tv_hsync_delay);
502 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY2, regp->tv_hsync_delay2);
503
504 for (i = 0; i < 7; i++) {
505 uint32_t ramdac_reg = NV_PRAMDAC_FP_VDISPLAY_END + (i * 4);
506
507 NVWriteRAMDAC(dev, head, ramdac_reg, regp->fp_vert_regs[i]);
508 NVWriteRAMDAC(dev, head, ramdac_reg + 0x20, regp->fp_horiz_regs[i]);
509 }
510
511 if (nv_gf4_disp_arch(dev)) {
512 NVWriteRAMDAC(dev, head, NV_RAMDAC_FP_DITHER, regp->dither);
513 for (i = 0; i < 3; i++) {
514 NVWriteRAMDAC(dev, head, NV_PRAMDAC_850 + i * 4, regp->dither_regs[i]);
515 NVWriteRAMDAC(dev, head, NV_PRAMDAC_85C + i * 4, regp->dither_regs[i + 3]);
516 }
517 }
518
519 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, regp->fp_control);
520 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_0, regp->fp_debug_0);
521 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1, regp->fp_debug_1);
522 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_2, regp->fp_debug_2);
523
524 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_MARGIN_COLOR, regp->fp_margin_color);
525
526 if (nv_gf4_disp_arch(dev))
527 NVWriteRAMDAC(dev, head, NV_PRAMDAC_8C0, regp->ramdac_8c0);
528
529 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE) {
530 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A20, regp->ramdac_a20);
531 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A24, regp->ramdac_a24);
532 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A34, regp->ramdac_a34);
533
534 for (i = 0; i < 38; i++)
535 NVWriteRAMDAC(dev, head,
536 NV_PRAMDAC_CTV + 4*i, regp->ctv_regs[i]);
537 }
538}
539
540static void
541nv_save_state_vga(struct drm_device *dev, int head,
542 struct nv04_mode_state *state)
543{
544 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
545 int i;
546
547 regp->MiscOutReg = NVReadPRMVIO(dev, head, NV_PRMVIO_MISC__READ);
548
549 for (i = 0; i < 25; i++)
550 rd_cio_state(dev, head, crtcstate: regp, index: i);
551
552 NVSetEnablePalette(dev, head, true);
553 for (i = 0; i < 21; i++)
554 regp->Attribute[i] = NVReadVgaAttr(dev, head, i);
555 NVSetEnablePalette(dev, head, false);
556
557 for (i = 0; i < 9; i++)
558 regp->Graphics[i] = NVReadVgaGr(dev, head, i);
559
560 for (i = 0; i < 5; i++)
561 regp->Sequencer[i] = NVReadVgaSeq(dev, head, i);
562}
563
564static void
565nv_load_state_vga(struct drm_device *dev, int head,
566 struct nv04_mode_state *state)
567{
568 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
569 int i;
570
571 NVWritePRMVIO(dev, head, NV_PRMVIO_MISC__WRITE, regp->MiscOutReg);
572
573 for (i = 0; i < 5; i++)
574 NVWriteVgaSeq(dev, head, i, regp->Sequencer[i]);
575
576 nv_lock_vga_crtc_base(dev, head, false);
577 for (i = 0; i < 25; i++)
578 wr_cio_state(dev, head, crtcstate: regp, index: i);
579 nv_lock_vga_crtc_base(dev, head, true);
580
581 for (i = 0; i < 9; i++)
582 NVWriteVgaGr(dev, head, i, regp->Graphics[i]);
583
584 NVSetEnablePalette(dev, head, true);
585 for (i = 0; i < 21; i++)
586 NVWriteVgaAttr(dev, head, i, regp->Attribute[i]);
587 NVSetEnablePalette(dev, head, false);
588}
589
590static void
591nv_save_state_ext(struct drm_device *dev, int head,
592 struct nv04_mode_state *state)
593{
594 struct nouveau_drm *drm = nouveau_drm(dev);
595 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
596 int i;
597
598 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_LCD__INDEX);
599 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_RPC0_INDEX);
600 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_RPC1_INDEX);
601 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_LSR_INDEX);
602 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_PIXEL_INDEX);
603 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HEB__INDEX);
604 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_ENH_INDEX);
605
606 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_FF_INDEX);
607 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_FFLWM__INDEX);
608 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_21);
609
610 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KELVIN)
611 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_47);
612
613 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
614 rd_cio_state(dev, head, crtcstate: regp, index: 0x9f);
615
616 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_49);
617 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR0_INDEX);
618 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR1_INDEX);
619 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
620 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_ILACE__INDEX);
621
622 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
623 regp->crtc_830 = NVReadCRTC(dev, head, NV_PCRTC_830);
624 regp->crtc_834 = NVReadCRTC(dev, head, NV_PCRTC_834);
625
626 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
627 regp->gpio_ext = NVReadCRTC(dev, head, NV_PCRTC_GPIO_EXT);
628
629 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
630 regp->crtc_850 = NVReadCRTC(dev, head, NV_PCRTC_850);
631
632 if (nv_two_heads(dev))
633 regp->crtc_eng_ctrl = NVReadCRTC(dev, head, NV_PCRTC_ENGINE_CTRL);
634 regp->cursor_cfg = NVReadCRTC(dev, head, NV_PCRTC_CURSOR_CONFIG);
635 }
636
637 regp->crtc_cfg = NVReadCRTC(dev, head, NV_PCRTC_CONFIG);
638
639 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_SCRATCH3__INDEX);
640 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_SCRATCH4__INDEX);
641 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
642 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_EBR_INDEX);
643 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_CSB);
644 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_4B);
645 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_TVOUT_LATENCY);
646 }
647 /* NV11 and NV20 don't have this, they stop at 0x52. */
648 if (nv_gf4_disp_arch(dev)) {
649 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_42);
650 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_53);
651 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_54);
652
653 for (i = 0; i < 0x10; i++)
654 regp->CR58[i] = NVReadVgaCrtc5758(dev, head, i);
655 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_59);
656 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_5B);
657
658 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_85);
659 rd_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_86);
660 }
661
662 regp->fb_start = NVReadCRTC(dev, head, NV_PCRTC_START);
663}
664
665static void
666nv_load_state_ext(struct drm_device *dev, int head,
667 struct nv04_mode_state *state)
668{
669 struct nouveau_drm *drm = nouveau_drm(dev);
670 struct nvif_object *device = &drm->client.device.object;
671 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
672 uint32_t reg900;
673 int i;
674
675 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
676 if (nv_two_heads(dev))
677 /* setting ENGINE_CTRL (EC) *must* come before
678 * CIO_CRE_LCD, as writing CRE_LCD sets bits 16 & 17 in
679 * EC that should not be overwritten by writing stale EC
680 */
681 NVWriteCRTC(dev, head, NV_PCRTC_ENGINE_CTRL, regp->crtc_eng_ctrl);
682
683 nvif_wr32(device, NV_PVIDEO_STOP, 1);
684 nvif_wr32(device, NV_PVIDEO_INTR_EN, 0);
685 nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(0), 0);
686 nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(1), 0);
687 nvif_wr32(device, NV_PVIDEO_LIMIT(0), drm->client.device.info.ram_size - 1);
688 nvif_wr32(device, NV_PVIDEO_LIMIT(1), drm->client.device.info.ram_size - 1);
689 nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(0), drm->client.device.info.ram_size - 1);
690 nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(1), drm->client.device.info.ram_size - 1);
691 nvif_wr32(device, NV_PBUS_POWERCTRL_2, 0);
692
693 NVWriteCRTC(dev, head, NV_PCRTC_CURSOR_CONFIG, regp->cursor_cfg);
694 NVWriteCRTC(dev, head, NV_PCRTC_830, regp->crtc_830);
695 NVWriteCRTC(dev, head, NV_PCRTC_834, regp->crtc_834);
696
697 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
698 NVWriteCRTC(dev, head, NV_PCRTC_GPIO_EXT, regp->gpio_ext);
699
700 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE) {
701 NVWriteCRTC(dev, head, NV_PCRTC_850, regp->crtc_850);
702
703 reg900 = NVReadRAMDAC(dev, head, NV_PRAMDAC_900);
704 if (regp->crtc_cfg == NV10_PCRTC_CONFIG_START_ADDRESS_HSYNC)
705 NVWriteRAMDAC(dev, head, NV_PRAMDAC_900, reg900 | 0x10000);
706 else
707 NVWriteRAMDAC(dev, head, NV_PRAMDAC_900, reg900 & ~0x10000);
708 }
709 }
710
711 NVWriteCRTC(dev, head, NV_PCRTC_CONFIG, regp->crtc_cfg);
712
713 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_RPC0_INDEX);
714 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_RPC1_INDEX);
715 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_LSR_INDEX);
716 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_PIXEL_INDEX);
717 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_LCD__INDEX);
718 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HEB__INDEX);
719 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_ENH_INDEX);
720 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_FF_INDEX);
721 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_FFLWM__INDEX);
722
723 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KELVIN)
724 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_47);
725
726 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
727 wr_cio_state(dev, head, crtcstate: regp, index: 0x9f);
728
729 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_49);
730 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR0_INDEX);
731 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR1_INDEX);
732 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
733 if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
734 nv_fix_nv40_hw_cursor(dev, head);
735 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_ILACE__INDEX);
736
737 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_SCRATCH3__INDEX);
738 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_SCRATCH4__INDEX);
739 if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
740 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_EBR_INDEX);
741 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_CSB);
742 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_4B);
743 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_TVOUT_LATENCY);
744 }
745 /* NV11 and NV20 stop at 0x52. */
746 if (nv_gf4_disp_arch(dev)) {
747 if (drm->client.device.info.family < NV_DEVICE_INFO_V0_KELVIN) {
748 /* Not waiting for vertical retrace before modifying
749 CRE_53/CRE_54 causes lockups. */
750 nvif_msec(&drm->client.device, 650,
751 if ( (nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 8))
752 break;
753 );
754 nvif_msec(&drm->client.device, 650,
755 if (!(nvif_rd32(device, NV_PRMCIO_INP0__COLOR) & 8))
756 break;
757 );
758 }
759
760 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_42);
761 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_53);
762 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_54);
763
764 for (i = 0; i < 0x10; i++)
765 NVWriteVgaCrtc5758(dev, head, i, regp->CR58[i]);
766 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_59);
767 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_5B);
768
769 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_85);
770 wr_cio_state(dev, head, crtcstate: regp, NV_CIO_CRE_86);
771 }
772
773 NVWriteCRTC(dev, head, NV_PCRTC_START, regp->fb_start);
774}
775
776static void
777nv_save_state_palette(struct drm_device *dev, int head,
778 struct nv04_mode_state *state)
779{
780 struct nvif_object *device = &nouveau_drm(dev)->client.device.object;
781 int head_offset = head * NV_PRMDIO_SIZE, i;
782
783 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
784 NV_PRMDIO_PIXEL_MASK_MASK);
785 nvif_wr08(device, NV_PRMDIO_READ_MODE_ADDRESS + head_offset, 0x0);
786
787 for (i = 0; i < 768; i++) {
788 state->crtc_reg[head].DAC[i] = nvif_rd08(device,
789 NV_PRMDIO_PALETTE_DATA + head_offset);
790 }
791
792 NVSetEnablePalette(dev, head, false);
793}
794
795void
796nouveau_hw_load_state_palette(struct drm_device *dev, int head,
797 struct nv04_mode_state *state)
798{
799 struct nvif_object *device = &nouveau_drm(dev)->client.device.object;
800 int head_offset = head * NV_PRMDIO_SIZE, i;
801
802 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
803 NV_PRMDIO_PIXEL_MASK_MASK);
804 nvif_wr08(device, NV_PRMDIO_WRITE_MODE_ADDRESS + head_offset, 0x0);
805
806 for (i = 0; i < 768; i++) {
807 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA + head_offset,
808 state->crtc_reg[head].DAC[i]);
809 }
810
811 NVSetEnablePalette(dev, head, false);
812}
813
814void nouveau_hw_save_state(struct drm_device *dev, int head,
815 struct nv04_mode_state *state)
816{
817 struct nouveau_drm *drm = nouveau_drm(dev);
818
819 if (drm->client.device.info.chipset == 0x11)
820 /* NB: no attempt is made to restore the bad pll later on */
821 nouveau_hw_fix_bad_vpll(dev, head);
822 nv_save_state_ramdac(dev, head, state);
823 nv_save_state_vga(dev, head, state);
824 nv_save_state_palette(dev, head, state);
825 nv_save_state_ext(dev, head, state);
826}
827
828void nouveau_hw_load_state(struct drm_device *dev, int head,
829 struct nv04_mode_state *state)
830{
831 NVVgaProtect(dev, head, true);
832 nv_load_state_ramdac(dev, head, state);
833 nv_load_state_ext(dev, head, state);
834 nouveau_hw_load_state_palette(dev, head, state);
835 nv_load_state_vga(dev, head, state);
836 NVVgaProtect(dev, head, false);
837}
838

source code of linux/drivers/gpu/drm/nouveau/dispnv04/hw.c