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Linux 4.2.1
[linux/fpc-iii.git] / drivers / gpu / drm / nouveau / dispnv04 / hw.c
blob42e07afc4c2b21841a5287024569e36d00ada17f
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 <drm/drmP.h>
26 #include "nouveau_drm.h"
27 #include "hw.h"
28
29 #include <subdev/bios/pll.h>
30
31 #define CHIPSET_NFORCE 0x01a0
32 #define CHIPSET_NFORCE2 0x01f0
33
34 /*
35 * misc hw access wrappers/control functions
36 */
37
38 void
39 NVWriteVgaSeq(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
45 uint8_t
46 NVReadVgaSeq(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
52 void
53 NVWriteVgaGr(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
59 uint8_t
60 NVReadVgaGr(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 */
84 void
85 NVSetOwner(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->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->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
109 void
110 NVBlankScreen(struct drm_device *dev, int head, bool blank)
111 {
112 unsigned char seq1;
113
114 if (nv_two_heads(dev))
115 NVSetOwner(dev, 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
131 static void
132 nouveau_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->device.info.chipset == 0x30 || drm->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
163 int
164 nouveau_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_device *device = &drm->device;
169 struct nvkm_bios *bios = nvxx_bios(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->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
204 int
205 nouveau_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
214 int
215 nouveau_hw_get_clock(struct drm_device *dev, enum nvbios_pll_type plltype)
216 {
217 struct nvkm_pll_vals pllvals;
218 int ret;
219
220 if (plltype == PLL_MEMORY &&
221 (dev->pdev->device & 0x0ff0) == CHIPSET_NFORCE) {
222 uint32_t mpllP;
223
224 pci_read_config_dword(pci_get_bus_and_slot(0, 3), 0x6c, &mpllP);
225 if (!mpllP)
226 mpllP = 4;
227
228 return 400000 / mpllP;
229 } else
230 if (plltype == PLL_MEMORY &&
231 (dev->pdev->device & 0xff0) == CHIPSET_NFORCE2) {
232 uint32_t clock;
233
234 pci_read_config_dword(pci_get_bus_and_slot(0, 5), 0x4c, &clock);
235 return clock;
236 }
237
238 ret = nouveau_hw_get_pllvals(dev, plltype, &pllvals);
239 if (ret)
240 return ret;
241
242 return nouveau_hw_pllvals_to_clk(&pllvals);
243 }
244
245 static void
246 nouveau_hw_fix_bad_vpll(struct drm_device *dev, int head)
247 {
248 /* the vpll on an unused head can come up with a random value, way
249 * beyond the pll limits. for some reason this causes the chip to
250 * lock up when reading the dac palette regs, so set a valid pll here
251 * when such a condition detected. only seen on nv11 to date
252 */
253
254 struct nouveau_drm *drm = nouveau_drm(dev);
255 struct nvif_device *device = &drm->device;
256 struct nvkm_clk *clk = nvxx_clk(device);
257 struct nvkm_bios *bios = nvxx_bios(device);
258 struct nvbios_pll pll_lim;
259 struct nvkm_pll_vals pv;
260 enum nvbios_pll_type pll = head ? PLL_VPLL1 : PLL_VPLL0;
261
262 if (nvbios_pll_parse(bios, pll, &pll_lim))
263 return;
264 nouveau_hw_get_pllvals(dev, pll, &pv);
265
266 if (pv.M1 >= pll_lim.vco1.min_m && pv.M1 <= pll_lim.vco1.max_m &&
267 pv.N1 >= pll_lim.vco1.min_n && pv.N1 <= pll_lim.vco1.max_n &&
268 pv.log2P <= pll_lim.max_p)
269 return;
270
271 NV_WARN(drm, "VPLL %d outwith limits, attempting to fix\n", head + 1);
272
273 /* set lowest clock within static limits */
274 pv.M1 = pll_lim.vco1.max_m;
275 pv.N1 = pll_lim.vco1.min_n;
276 pv.log2P = pll_lim.max_p_usable;
277 clk->pll_prog(clk, pll_lim.reg, &pv);
278 }
279
280 /*
281 * vga font save/restore
282 */
283
284 static void nouveau_vga_font_io(struct drm_device *dev,
285 void __iomem *iovram,
286 bool save, unsigned plane)
287 {
288 unsigned i;
289
290 NVWriteVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX, 1 << plane);
291 NVWriteVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX, plane);
292 for (i = 0; i < 16384; i++) {
293 if (save) {
294 nv04_display(dev)->saved_vga_font[plane][i] =
295 ioread32_native(iovram + i * 4);
296 } else {
297 iowrite32_native(nv04_display(dev)->saved_vga_font[plane][i],
298 iovram + i * 4);
299 }
300 }
301 }
302
303 void
304 nouveau_hw_save_vga_fonts(struct drm_device *dev, bool save)
305 {
306 struct nouveau_drm *drm = nouveau_drm(dev);
307 uint8_t misc, gr4, gr5, gr6, seq2, seq4;
308 bool graphicsmode;
309 unsigned plane;
310 void __iomem *iovram;
311
312 if (nv_two_heads(dev))
313 NVSetOwner(dev, 0);
314
315 NVSetEnablePalette(dev, 0, true);
316 graphicsmode = NVReadVgaAttr(dev, 0, NV_CIO_AR_MODE_INDEX) & 1;
317 NVSetEnablePalette(dev, 0, false);
318
319 if (graphicsmode) /* graphics mode => framebuffer => no need to save */
320 return;
321
322 NV_INFO(drm, "%sing VGA fonts\n", save ? "Sav" : "Restor");
323
324 /* map first 64KiB of VRAM, holds VGA fonts etc */
325 iovram = ioremap(pci_resource_start(dev->pdev, 1), 65536);
326 if (!iovram) {
327 NV_ERROR(drm, "Failed to map VRAM, "
328 "cannot save/restore VGA fonts.\n");
329 return;
330 }
331
332 if (nv_two_heads(dev))
333 NVBlankScreen(dev, 1, true);
334 NVBlankScreen(dev, 0, true);
335
336 /* save control regs */
337 misc = NVReadPRMVIO(dev, 0, NV_PRMVIO_MISC__READ);
338 seq2 = NVReadVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX);
339 seq4 = NVReadVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX);
340 gr4 = NVReadVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX);
341 gr5 = NVReadVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX);
342 gr6 = NVReadVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX);
343
344 NVWritePRMVIO(dev, 0, NV_PRMVIO_MISC__WRITE, 0x67);
345 NVWriteVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX, 0x6);
346 NVWriteVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX, 0x0);
347 NVWriteVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX, 0x5);
348
349 /* store font in planes 0..3 */
350 for (plane = 0; plane < 4; plane++)
351 nouveau_vga_font_io(dev, iovram, save, plane);
352
353 /* restore control regs */
354 NVWritePRMVIO(dev, 0, NV_PRMVIO_MISC__WRITE, misc);
355 NVWriteVgaGr(dev, 0, NV_VIO_GX_READ_MAP_INDEX, gr4);
356 NVWriteVgaGr(dev, 0, NV_VIO_GX_MODE_INDEX, gr5);
357 NVWriteVgaGr(dev, 0, NV_VIO_GX_MISC_INDEX, gr6);
358 NVWriteVgaSeq(dev, 0, NV_VIO_SR_PLANE_MASK_INDEX, seq2);
359 NVWriteVgaSeq(dev, 0, NV_VIO_SR_MEM_MODE_INDEX, seq4);
360
361 if (nv_two_heads(dev))
362 NVBlankScreen(dev, 1, false);
363 NVBlankScreen(dev, 0, false);
364
365 iounmap(iovram);
366 }
367
368 /*
369 * mode state save/load
370 */
371
372 static void
373 rd_cio_state(struct drm_device *dev, int head,
374 struct nv04_crtc_reg *crtcstate, int index)
375 {
376 crtcstate->CRTC[index] = NVReadVgaCrtc(dev, head, index);
377 }
378
379 static void
380 wr_cio_state(struct drm_device *dev, int head,
381 struct nv04_crtc_reg *crtcstate, int index)
382 {
383 NVWriteVgaCrtc(dev, head, index, crtcstate->CRTC[index]);
384 }
385
386 static void
387 nv_save_state_ramdac(struct drm_device *dev, int head,
388 struct nv04_mode_state *state)
389 {
390 struct nouveau_drm *drm = nouveau_drm(dev);
391 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
392 int i;
393
394 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
395 regp->nv10_cursync = NVReadRAMDAC(dev, head, NV_RAMDAC_NV10_CURSYNC);
396
397 nouveau_hw_get_pllvals(dev, head ? PLL_VPLL1 : PLL_VPLL0, &regp->pllvals);
398 state->pllsel = NVReadRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT);
399 if (nv_two_heads(dev))
400 state->sel_clk = NVReadRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK);
401 if (drm->device.info.chipset == 0x11)
402 regp->dither = NVReadRAMDAC(dev, head, NV_RAMDAC_DITHER_NV11);
403
404 regp->ramdac_gen_ctrl = NVReadRAMDAC(dev, head, NV_PRAMDAC_GENERAL_CONTROL);
405
406 if (nv_gf4_disp_arch(dev))
407 regp->ramdac_630 = NVReadRAMDAC(dev, head, NV_PRAMDAC_630);
408 if (drm->device.info.chipset >= 0x30)
409 regp->ramdac_634 = NVReadRAMDAC(dev, head, NV_PRAMDAC_634);
410
411 regp->tv_setup = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP);
412 regp->tv_vtotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VTOTAL);
413 regp->tv_vskew = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VSKEW);
414 regp->tv_vsync_delay = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_VSYNC_DELAY);
415 regp->tv_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HTOTAL);
416 regp->tv_hskew = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSKEW);
417 regp->tv_hsync_delay = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY);
418 regp->tv_hsync_delay2 = NVReadRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY2);
419
420 for (i = 0; i < 7; i++) {
421 uint32_t ramdac_reg = NV_PRAMDAC_FP_VDISPLAY_END + (i * 4);
422 regp->fp_vert_regs[i] = NVReadRAMDAC(dev, head, ramdac_reg);
423 regp->fp_horiz_regs[i] = NVReadRAMDAC(dev, head, ramdac_reg + 0x20);
424 }
425
426 if (nv_gf4_disp_arch(dev)) {
427 regp->dither = NVReadRAMDAC(dev, head, NV_RAMDAC_FP_DITHER);
428 for (i = 0; i < 3; i++) {
429 regp->dither_regs[i] = NVReadRAMDAC(dev, head, NV_PRAMDAC_850 + i * 4);
430 regp->dither_regs[i + 3] = NVReadRAMDAC(dev, head, NV_PRAMDAC_85C + i * 4);
431 }
432 }
433
434 regp->fp_control = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL);
435 regp->fp_debug_0 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_0);
436 if (!nv_gf4_disp_arch(dev) && head == 0) {
437 /* early chips don't allow access to PRAMDAC_TMDS_* without
438 * the head A FPCLK on (nv11 even locks up) */
439 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_FP_DEBUG_0, regp->fp_debug_0 &
440 ~NV_PRAMDAC_FP_DEBUG_0_PWRDOWN_FPCLK);
441 }
442 regp->fp_debug_1 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1);
443 regp->fp_debug_2 = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_2);
444
445 regp->fp_margin_color = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_MARGIN_COLOR);
446
447 if (nv_gf4_disp_arch(dev))
448 regp->ramdac_8c0 = NVReadRAMDAC(dev, head, NV_PRAMDAC_8C0);
449
450 if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE) {
451 regp->ramdac_a20 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A20);
452 regp->ramdac_a24 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A24);
453 regp->ramdac_a34 = NVReadRAMDAC(dev, head, NV_PRAMDAC_A34);
454
455 for (i = 0; i < 38; i++)
456 regp->ctv_regs[i] = NVReadRAMDAC(dev, head,
457 NV_PRAMDAC_CTV + 4*i);
458 }
459 }
460
461 static void
462 nv_load_state_ramdac(struct drm_device *dev, int head,
463 struct nv04_mode_state *state)
464 {
465 struct nouveau_drm *drm = nouveau_drm(dev);
466 struct nvkm_clk *clk = nvxx_clk(&drm->device);
467 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
468 uint32_t pllreg = head ? NV_RAMDAC_VPLL2 : NV_PRAMDAC_VPLL_COEFF;
469 int i;
470
471 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
472 NVWriteRAMDAC(dev, head, NV_RAMDAC_NV10_CURSYNC, regp->nv10_cursync);
473
474 clk->pll_prog(clk, pllreg, &regp->pllvals);
475 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_PLL_COEFF_SELECT, state->pllsel);
476 if (nv_two_heads(dev))
477 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, state->sel_clk);
478 if (drm->device.info.chipset == 0x11)
479 NVWriteRAMDAC(dev, head, NV_RAMDAC_DITHER_NV11, regp->dither);
480
481 NVWriteRAMDAC(dev, head, NV_PRAMDAC_GENERAL_CONTROL, regp->ramdac_gen_ctrl);
482
483 if (nv_gf4_disp_arch(dev))
484 NVWriteRAMDAC(dev, head, NV_PRAMDAC_630, regp->ramdac_630);
485 if (drm->device.info.chipset >= 0x30)
486 NVWriteRAMDAC(dev, head, NV_PRAMDAC_634, regp->ramdac_634);
487
488 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_SETUP, regp->tv_setup);
489 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VTOTAL, regp->tv_vtotal);
490 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VSKEW, regp->tv_vskew);
491 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_VSYNC_DELAY, regp->tv_vsync_delay);
492 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HTOTAL, regp->tv_htotal);
493 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSKEW, regp->tv_hskew);
494 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY, regp->tv_hsync_delay);
495 NVWriteRAMDAC(dev, head, NV_PRAMDAC_TV_HSYNC_DELAY2, regp->tv_hsync_delay2);
496
497 for (i = 0; i < 7; i++) {
498 uint32_t ramdac_reg = NV_PRAMDAC_FP_VDISPLAY_END + (i * 4);
499
500 NVWriteRAMDAC(dev, head, ramdac_reg, regp->fp_vert_regs[i]);
501 NVWriteRAMDAC(dev, head, ramdac_reg + 0x20, regp->fp_horiz_regs[i]);
502 }
503
504 if (nv_gf4_disp_arch(dev)) {
505 NVWriteRAMDAC(dev, head, NV_RAMDAC_FP_DITHER, regp->dither);
506 for (i = 0; i < 3; i++) {
507 NVWriteRAMDAC(dev, head, NV_PRAMDAC_850 + i * 4, regp->dither_regs[i]);
508 NVWriteRAMDAC(dev, head, NV_PRAMDAC_85C + i * 4, regp->dither_regs[i + 3]);
509 }
510 }
511
512 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_TG_CONTROL, regp->fp_control);
513 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_0, regp->fp_debug_0);
514 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_1, regp->fp_debug_1);
515 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_DEBUG_2, regp->fp_debug_2);
516
517 NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_MARGIN_COLOR, regp->fp_margin_color);
518
519 if (nv_gf4_disp_arch(dev))
520 NVWriteRAMDAC(dev, head, NV_PRAMDAC_8C0, regp->ramdac_8c0);
521
522 if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE) {
523 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A20, regp->ramdac_a20);
524 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A24, regp->ramdac_a24);
525 NVWriteRAMDAC(dev, head, NV_PRAMDAC_A34, regp->ramdac_a34);
526
527 for (i = 0; i < 38; i++)
528 NVWriteRAMDAC(dev, head,
529 NV_PRAMDAC_CTV + 4*i, regp->ctv_regs[i]);
530 }
531 }
532
533 static void
534 nv_save_state_vga(struct drm_device *dev, int head,
535 struct nv04_mode_state *state)
536 {
537 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
538 int i;
539
540 regp->MiscOutReg = NVReadPRMVIO(dev, head, NV_PRMVIO_MISC__READ);
541
542 for (i = 0; i < 25; i++)
543 rd_cio_state(dev, head, regp, i);
544
545 NVSetEnablePalette(dev, head, true);
546 for (i = 0; i < 21; i++)
547 regp->Attribute[i] = NVReadVgaAttr(dev, head, i);
548 NVSetEnablePalette(dev, head, false);
549
550 for (i = 0; i < 9; i++)
551 regp->Graphics[i] = NVReadVgaGr(dev, head, i);
552
553 for (i = 0; i < 5; i++)
554 regp->Sequencer[i] = NVReadVgaSeq(dev, head, i);
555 }
556
557 static void
558 nv_load_state_vga(struct drm_device *dev, int head,
559 struct nv04_mode_state *state)
560 {
561 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
562 int i;
563
564 NVWritePRMVIO(dev, head, NV_PRMVIO_MISC__WRITE, regp->MiscOutReg);
565
566 for (i = 0; i < 5; i++)
567 NVWriteVgaSeq(dev, head, i, regp->Sequencer[i]);
568
569 nv_lock_vga_crtc_base(dev, head, false);
570 for (i = 0; i < 25; i++)
571 wr_cio_state(dev, head, regp, i);
572 nv_lock_vga_crtc_base(dev, head, true);
573
574 for (i = 0; i < 9; i++)
575 NVWriteVgaGr(dev, head, i, regp->Graphics[i]);
576
577 NVSetEnablePalette(dev, head, true);
578 for (i = 0; i < 21; i++)
579 NVWriteVgaAttr(dev, head, i, regp->Attribute[i]);
580 NVSetEnablePalette(dev, head, false);
581 }
582
583 static void
584 nv_save_state_ext(struct drm_device *dev, int head,
585 struct nv04_mode_state *state)
586 {
587 struct nouveau_drm *drm = nouveau_drm(dev);
588 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
589 int i;
590
591 rd_cio_state(dev, head, regp, NV_CIO_CRE_LCD__INDEX);
592 rd_cio_state(dev, head, regp, NV_CIO_CRE_RPC0_INDEX);
593 rd_cio_state(dev, head, regp, NV_CIO_CRE_RPC1_INDEX);
594 rd_cio_state(dev, head, regp, NV_CIO_CRE_LSR_INDEX);
595 rd_cio_state(dev, head, regp, NV_CIO_CRE_PIXEL_INDEX);
596 rd_cio_state(dev, head, regp, NV_CIO_CRE_HEB__INDEX);
597 rd_cio_state(dev, head, regp, NV_CIO_CRE_ENH_INDEX);
598
599 rd_cio_state(dev, head, regp, NV_CIO_CRE_FF_INDEX);
600 rd_cio_state(dev, head, regp, NV_CIO_CRE_FFLWM__INDEX);
601 rd_cio_state(dev, head, regp, NV_CIO_CRE_21);
602
603 if (drm->device.info.family >= NV_DEVICE_INFO_V0_KELVIN)
604 rd_cio_state(dev, head, regp, NV_CIO_CRE_47);
605
606 if (drm->device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
607 rd_cio_state(dev, head, regp, 0x9f);
608
609 rd_cio_state(dev, head, regp, NV_CIO_CRE_49);
610 rd_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR0_INDEX);
611 rd_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR1_INDEX);
612 rd_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
613 rd_cio_state(dev, head, regp, NV_CIO_CRE_ILACE__INDEX);
614
615 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
616 regp->crtc_830 = NVReadCRTC(dev, head, NV_PCRTC_830);
617 regp->crtc_834 = NVReadCRTC(dev, head, NV_PCRTC_834);
618
619 if (drm->device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
620 regp->gpio_ext = NVReadCRTC(dev, head, NV_PCRTC_GPIO_EXT);
621
622 if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE)
623 regp->crtc_850 = NVReadCRTC(dev, head, NV_PCRTC_850);
624
625 if (nv_two_heads(dev))
626 regp->crtc_eng_ctrl = NVReadCRTC(dev, head, NV_PCRTC_ENGINE_CTRL);
627 regp->cursor_cfg = NVReadCRTC(dev, head, NV_PCRTC_CURSOR_CONFIG);
628 }
629
630 regp->crtc_cfg = NVReadCRTC(dev, head, NV_PCRTC_CONFIG);
631
632 rd_cio_state(dev, head, regp, NV_CIO_CRE_SCRATCH3__INDEX);
633 rd_cio_state(dev, head, regp, NV_CIO_CRE_SCRATCH4__INDEX);
634 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
635 rd_cio_state(dev, head, regp, NV_CIO_CRE_EBR_INDEX);
636 rd_cio_state(dev, head, regp, NV_CIO_CRE_CSB);
637 rd_cio_state(dev, head, regp, NV_CIO_CRE_4B);
638 rd_cio_state(dev, head, regp, NV_CIO_CRE_TVOUT_LATENCY);
639 }
640 /* NV11 and NV20 don't have this, they stop at 0x52. */
641 if (nv_gf4_disp_arch(dev)) {
642 rd_cio_state(dev, head, regp, NV_CIO_CRE_42);
643 rd_cio_state(dev, head, regp, NV_CIO_CRE_53);
644 rd_cio_state(dev, head, regp, NV_CIO_CRE_54);
645
646 for (i = 0; i < 0x10; i++)
647 regp->CR58[i] = NVReadVgaCrtc5758(dev, head, i);
648 rd_cio_state(dev, head, regp, NV_CIO_CRE_59);
649 rd_cio_state(dev, head, regp, NV_CIO_CRE_5B);
650
651 rd_cio_state(dev, head, regp, NV_CIO_CRE_85);
652 rd_cio_state(dev, head, regp, NV_CIO_CRE_86);
653 }
654
655 regp->fb_start = NVReadCRTC(dev, head, NV_PCRTC_START);
656 }
657
658 static void
659 nv_load_state_ext(struct drm_device *dev, int head,
660 struct nv04_mode_state *state)
661 {
662 struct nouveau_drm *drm = nouveau_drm(dev);
663 struct nvif_device *device = &drm->device;
664 struct nvkm_timer *ptimer = nvxx_timer(device);
665 struct nv04_crtc_reg *regp = &state->crtc_reg[head];
666 uint32_t reg900;
667 int i;
668
669 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
670 if (nv_two_heads(dev))
671 /* setting ENGINE_CTRL (EC) *must* come before
672 * CIO_CRE_LCD, as writing CRE_LCD sets bits 16 & 17 in
673 * EC that should not be overwritten by writing stale EC
674 */
675 NVWriteCRTC(dev, head, NV_PCRTC_ENGINE_CTRL, regp->crtc_eng_ctrl);
676
677 nvif_wr32(device, NV_PVIDEO_STOP, 1);
678 nvif_wr32(device, NV_PVIDEO_INTR_EN, 0);
679 nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(0), 0);
680 nvif_wr32(device, NV_PVIDEO_OFFSET_BUFF(1), 0);
681 nvif_wr32(device, NV_PVIDEO_LIMIT(0), device->info.ram_size - 1);
682 nvif_wr32(device, NV_PVIDEO_LIMIT(1), device->info.ram_size - 1);
683 nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(0), device->info.ram_size - 1);
684 nvif_wr32(device, NV_PVIDEO_UVPLANE_LIMIT(1), device->info.ram_size - 1);
685 nvif_wr32(device, NV_PBUS_POWERCTRL_2, 0);
686
687 NVWriteCRTC(dev, head, NV_PCRTC_CURSOR_CONFIG, regp->cursor_cfg);
688 NVWriteCRTC(dev, head, NV_PCRTC_830, regp->crtc_830);
689 NVWriteCRTC(dev, head, NV_PCRTC_834, regp->crtc_834);
690
691 if (drm->device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
692 NVWriteCRTC(dev, head, NV_PCRTC_GPIO_EXT, regp->gpio_ext);
693
694 if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE) {
695 NVWriteCRTC(dev, head, NV_PCRTC_850, regp->crtc_850);
696
697 reg900 = NVReadRAMDAC(dev, head, NV_PRAMDAC_900);
698 if (regp->crtc_cfg == NV10_PCRTC_CONFIG_START_ADDRESS_HSYNC)
699 NVWriteRAMDAC(dev, head, NV_PRAMDAC_900, reg900 | 0x10000);
700 else
701 NVWriteRAMDAC(dev, head, NV_PRAMDAC_900, reg900 & ~0x10000);
702 }
703 }
704
705 NVWriteCRTC(dev, head, NV_PCRTC_CONFIG, regp->crtc_cfg);
706
707 wr_cio_state(dev, head, regp, NV_CIO_CRE_RPC0_INDEX);
708 wr_cio_state(dev, head, regp, NV_CIO_CRE_RPC1_INDEX);
709 wr_cio_state(dev, head, regp, NV_CIO_CRE_LSR_INDEX);
710 wr_cio_state(dev, head, regp, NV_CIO_CRE_PIXEL_INDEX);
711 wr_cio_state(dev, head, regp, NV_CIO_CRE_LCD__INDEX);
712 wr_cio_state(dev, head, regp, NV_CIO_CRE_HEB__INDEX);
713 wr_cio_state(dev, head, regp, NV_CIO_CRE_ENH_INDEX);
714 wr_cio_state(dev, head, regp, NV_CIO_CRE_FF_INDEX);
715 wr_cio_state(dev, head, regp, NV_CIO_CRE_FFLWM__INDEX);
716
717 if (drm->device.info.family >= NV_DEVICE_INFO_V0_KELVIN)
718 wr_cio_state(dev, head, regp, NV_CIO_CRE_47);
719
720 if (drm->device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
721 wr_cio_state(dev, head, regp, 0x9f);
722
723 wr_cio_state(dev, head, regp, NV_CIO_CRE_49);
724 wr_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR0_INDEX);
725 wr_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR1_INDEX);
726 wr_cio_state(dev, head, regp, NV_CIO_CRE_HCUR_ADDR2_INDEX);
727 if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE)
728 nv_fix_nv40_hw_cursor(dev, head);
729 wr_cio_state(dev, head, regp, NV_CIO_CRE_ILACE__INDEX);
730
731 wr_cio_state(dev, head, regp, NV_CIO_CRE_SCRATCH3__INDEX);
732 wr_cio_state(dev, head, regp, NV_CIO_CRE_SCRATCH4__INDEX);
733 if (drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS) {
734 wr_cio_state(dev, head, regp, NV_CIO_CRE_EBR_INDEX);
735 wr_cio_state(dev, head, regp, NV_CIO_CRE_CSB);
736 wr_cio_state(dev, head, regp, NV_CIO_CRE_4B);
737 wr_cio_state(dev, head, regp, NV_CIO_CRE_TVOUT_LATENCY);
738 }
739 /* NV11 and NV20 stop at 0x52. */
740 if (nv_gf4_disp_arch(dev)) {
741 if (drm->device.info.family < NV_DEVICE_INFO_V0_KELVIN) {
742 /* Not waiting for vertical retrace before modifying
743 CRE_53/CRE_54 causes lockups. */
744 nvkm_timer_wait_eq(ptimer, 650000000, NV_PRMCIO_INP0__COLOR, 0x8, 0x8);
745 nvkm_timer_wait_eq(ptimer, 650000000, NV_PRMCIO_INP0__COLOR, 0x8, 0x0);
746 }
747
748 wr_cio_state(dev, head, regp, NV_CIO_CRE_42);
749 wr_cio_state(dev, head, regp, NV_CIO_CRE_53);
750 wr_cio_state(dev, head, regp, NV_CIO_CRE_54);
751
752 for (i = 0; i < 0x10; i++)
753 NVWriteVgaCrtc5758(dev, head, i, regp->CR58[i]);
754 wr_cio_state(dev, head, regp, NV_CIO_CRE_59);
755 wr_cio_state(dev, head, regp, NV_CIO_CRE_5B);
756
757 wr_cio_state(dev, head, regp, NV_CIO_CRE_85);
758 wr_cio_state(dev, head, regp, NV_CIO_CRE_86);
759 }
760
761 NVWriteCRTC(dev, head, NV_PCRTC_START, regp->fb_start);
762 }
763
764 static void
765 nv_save_state_palette(struct drm_device *dev, int head,
766 struct nv04_mode_state *state)
767 {
768 struct nvif_device *device = &nouveau_drm(dev)->device;
769 int head_offset = head * NV_PRMDIO_SIZE, i;
770
771 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
772 NV_PRMDIO_PIXEL_MASK_MASK);
773 nvif_wr08(device, NV_PRMDIO_READ_MODE_ADDRESS + head_offset, 0x0);
774
775 for (i = 0; i < 768; i++) {
776 state->crtc_reg[head].DAC[i] = nvif_rd08(device,
777 NV_PRMDIO_PALETTE_DATA + head_offset);
778 }
779
780 NVSetEnablePalette(dev, head, false);
781 }
782
783 void
784 nouveau_hw_load_state_palette(struct drm_device *dev, int head,
785 struct nv04_mode_state *state)
786 {
787 struct nvif_device *device = &nouveau_drm(dev)->device;
788 int head_offset = head * NV_PRMDIO_SIZE, i;
789
790 nvif_wr08(device, NV_PRMDIO_PIXEL_MASK + head_offset,
791 NV_PRMDIO_PIXEL_MASK_MASK);
792 nvif_wr08(device, NV_PRMDIO_WRITE_MODE_ADDRESS + head_offset, 0x0);
793
794 for (i = 0; i < 768; i++) {
795 nvif_wr08(device, NV_PRMDIO_PALETTE_DATA + head_offset,
796 state->crtc_reg[head].DAC[i]);
797 }
798
799 NVSetEnablePalette(dev, head, false);
800 }
801
802 void nouveau_hw_save_state(struct drm_device *dev, int head,
803 struct nv04_mode_state *state)
804 {
805 struct nouveau_drm *drm = nouveau_drm(dev);
806
807 if (drm->device.info.chipset == 0x11)
808 /* NB: no attempt is made to restore the bad pll later on */
809 nouveau_hw_fix_bad_vpll(dev, head);
810 nv_save_state_ramdac(dev, head, state);
811 nv_save_state_vga(dev, head, state);
812 nv_save_state_palette(dev, head, state);
813 nv_save_state_ext(dev, head, state);
814 }
815
816 void nouveau_hw_load_state(struct drm_device *dev, int head,
817 struct nv04_mode_state *state)
818 {
819 NVVgaProtect(dev, head, true);
820 nv_load_state_ramdac(dev, head, state);
821 nv_load_state_ext(dev, head, state);
822 nouveau_hw_load_state_palette(dev, head, state);
823 nv_load_state_vga(dev, head, state);
824 NVVgaProtect(dev, head, false);
825 }
Linux with added FPC-III support