drivers/gpu/drm/nouveau/dispnv04/crtc.c

   1 /*
   2  * Copyright 1993-2003 NVIDIA, Corporation
   3  * Copyright 2006 Dave Airlie
   4  * Copyright 2007 Maarten Maathuis
   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 (including the next
  14  * paragraph) shall be included in all copies or substantial portions of the
  15  * Software.
  16  *
  17  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  18  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  19  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  20  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  21  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  22  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  23  * DEALINGS IN THE SOFTWARE.
  24  */
  25 #include <drm/drm_crtc_helper.h>
  26 #include <drm/drm_fourcc.h>
  27 #include <drm/drm_plane_helper.h>
  28 #include <drm/drm_vblank.h>
  29
  30 #include "nouveau_drv.h"
  31 #include "nouveau_reg.h"
  32 #include "nouveau_ttm.h"
  33 #include "nouveau_bo.h"
  34 #include "nouveau_gem.h"
  35 #include "nouveau_encoder.h"
  36 #include "nouveau_connector.h"
  37 #include "nouveau_crtc.h"
  38 #include "hw.h"
  39 #include "nvreg.h"
  40 #include "nouveau_fbcon.h"
  41 #include "disp.h"
  42 #include "nouveau_dma.h"
  43
  44 #include <subdev/bios/pll.h>
  45 #include <subdev/clk.h>
  46
  47 static int
  48 nv04_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
  49                         struct drm_framebuffer *old_fb);
  50
  51 static void
  52 crtc_wr_cio_state(struct drm_crtc *crtc, struct nv04_crtc_reg *crtcstate, int index)
  53 {
  54         NVWriteVgaCrtc(crtc->dev, nouveau_crtc(crtc)->index, index,
  55                        crtcstate->CRTC[index]);
  56 }
  57
  58 static void nv_crtc_set_digital_vibrance(struct drm_crtc *crtc, int level)
  59 {
  60         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  61         struct drm_device *dev = crtc->dev;
  62         struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
  63
  64         regp->CRTC[NV_CIO_CRE_CSB] = nv_crtc->saturation = level;
  65         if (nv_crtc->saturation && nv_gf4_disp_arch(crtc->dev)) {
  66                 regp->CRTC[NV_CIO_CRE_CSB] = 0x80;
  67                 regp->CRTC[NV_CIO_CRE_5B] = nv_crtc->saturation << 2;
  68                 crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_5B);
  69         }
  70         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_CSB);
  71 }
  72
  73 static void nv_crtc_set_image_sharpening(struct drm_crtc *crtc, int level)
  74 {
  75         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
  76         struct drm_device *dev = crtc->dev;
  77         struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
  78
  79         nv_crtc->sharpness = level;
  80         if (level < 0)  /* blur is in hw range 0x3f -> 0x20 */
  81                 level += 0x40;
  82         regp->ramdac_634 = level;
  83         NVWriteRAMDAC(crtc->dev, nv_crtc->index, NV_PRAMDAC_634, regp->ramdac_634);
  84 }
  85
  86 #define PLLSEL_VPLL1_MASK                               \
  87         (NV_PRAMDAC_PLL_COEFF_SELECT_SOURCE_PROG_VPLL   \
  88          | NV_PRAMDAC_PLL_COEFF_SELECT_VCLK_RATIO_DB2)
  89 #define PLLSEL_VPLL2_MASK                               \
  90         (NV_PRAMDAC_PLL_COEFF_SELECT_PLL_SOURCE_VPLL2           \
  91          | NV_PRAMDAC_PLL_COEFF_SELECT_VCLK2_RATIO_DB2)
  92 #define PLLSEL_TV_MASK                                  \
  93         (NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK1          \
  94          | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK1         \
  95          | NV_PRAMDAC_PLL_COEFF_SELECT_TV_VSCLK2        \
  96          | NV_PRAMDAC_PLL_COEFF_SELECT_TV_PCLK2)
  97
  98 /* NV4x 0x40.. pll notes:
  99  * gpu pll: 0x4000 + 0x4004
 100  * ?gpu? pll: 0x4008 + 0x400c
 101  * vpll1: 0x4010 + 0x4014
 102  * vpll2: 0x4018 + 0x401c
 103  * mpll: 0x4020 + 0x4024
 104  * mpll: 0x4038 + 0x403c
 105  *
 106  * the first register of each pair has some unknown details:
 107  * bits 0-7: redirected values from elsewhere? (similar to PLL_SETUP_CONTROL?)
 108  * bits 20-23: (mpll) something to do with post divider?
 109  * bits 28-31: related to single stage mode? (bit 8/12)
 110  */
 111
 112 static void nv_crtc_calc_state_ext(struct drm_crtc *crtc, struct drm_display_mode * mode, int dot_clock)
 113 {
 114         struct drm_device *dev = crtc->dev;
 115         struct nouveau_drm *drm = nouveau_drm(dev);
 116         struct nvkm_bios *bios = nvxx_bios(&drm->client.device);
 117         struct nvkm_clk *clk = nvxx_clk(&drm->client.device);
 118         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 119         struct nv04_mode_state *state = &nv04_display(dev)->mode_reg;
 120         struct nv04_crtc_reg *regp = &state->crtc_reg[nv_crtc->index];
 121         struct nvkm_pll_vals *pv = &regp->pllvals;
 122         struct nvbios_pll pll_lim;
 123
 124         if (nvbios_pll_parse(bios, nv_crtc->index ? PLL_VPLL1 : PLL_VPLL0,
 125                             &pll_lim))
 126                 return;
 127
 128         /* NM2 == 0 is used to determine single stage mode on two stage plls */
 129         pv->NM2 = 0;
 130
 131         /* for newer nv4x the blob uses only the first stage of the vpll below a
 132          * certain clock.  for a certain nv4b this is 150MHz.  since the max
 133          * output frequency of the first stage for this card is 300MHz, it is
 134          * assumed the threshold is given by vco1 maxfreq/2
 135          */
 136         /* for early nv4x, specifically nv40 and *some* nv43 (devids 0 and 6,
 137          * not 8, others unknown), the blob always uses both plls.  no problem
 138          * has yet been observed in allowing the use a single stage pll on all
 139          * nv43 however.  the behaviour of single stage use is untested on nv40
 140          */
 141         if (drm->client.device.info.chipset > 0x40 && dot_clock <= (pll_lim.vco1.max_freq / 2))
 142                 memset(&pll_lim.vco2, 0, sizeof(pll_lim.vco2));
 143
 144
 145         if (!clk->pll_calc(clk, &pll_lim, dot_clock, pv))
 146                 return;
 147
 148         state->pllsel &= PLLSEL_VPLL1_MASK | PLLSEL_VPLL2_MASK | PLLSEL_TV_MASK;
 149
 150         /* The blob uses this always, so let's do the same */
 151         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
 152                 state->pllsel |= NV_PRAMDAC_PLL_COEFF_SELECT_USE_VPLL2_TRUE;
 153         /* again nv40 and some nv43 act more like nv3x as described above */
 154         if (drm->client.device.info.chipset < 0x41)
 155                 state->pllsel |= NV_PRAMDAC_PLL_COEFF_SELECT_SOURCE_PROG_MPLL |
 156                                  NV_PRAMDAC_PLL_COEFF_SELECT_SOURCE_PROG_NVPLL;
 157         state->pllsel |= nv_crtc->index ? PLLSEL_VPLL2_MASK : PLLSEL_VPLL1_MASK;
 158
 159         if (pv->NM2)
 160                 NV_DEBUG(drm, "vpll: n1 %d n2 %d m1 %d m2 %d log2p %d\n",
 161                          pv->N1, pv->N2, pv->M1, pv->M2, pv->log2P);
 162         else
 163                 NV_DEBUG(drm, "vpll: n %d m %d log2p %d\n",
 164                          pv->N1, pv->M1, pv->log2P);
 165
 166         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.offset);
 167 }
 168
 169 static void
 170 nv_crtc_dpms(struct drm_crtc *crtc, int mode)
 171 {
 172         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 173         struct drm_device *dev = crtc->dev;
 174         struct nouveau_drm *drm = nouveau_drm(dev);
 175         unsigned char seq1 = 0, crtc17 = 0;
 176         unsigned char crtc1A;
 177
 178         NV_DEBUG(drm, "Setting dpms mode %d on CRTC %d\n", mode,
 179                                                         nv_crtc->index);
 180
 181         if (nv_crtc->last_dpms == mode) /* Don't do unnecessary mode changes. */
 182                 return;
 183
 184         nv_crtc->last_dpms = mode;
 185
 186         if (nv_two_heads(dev))
 187                 NVSetOwner(dev, nv_crtc->index);
 188
 189         /* nv4ref indicates these two RPC1 bits inhibit h/v sync */
 190         crtc1A = NVReadVgaCrtc(dev, nv_crtc->index,
 191                                         NV_CIO_CRE_RPC1_INDEX) & ~0xC0;
 192         switch (mode) {
 193         case DRM_MODE_DPMS_STANDBY:
 194                 /* Screen: Off; HSync: Off, VSync: On -- Not Supported */
 195                 seq1 = 0x20;
 196                 crtc17 = 0x80;
 197                 crtc1A |= 0x80;
 198                 break;
 199         case DRM_MODE_DPMS_SUSPEND:
 200                 /* Screen: Off; HSync: On, VSync: Off -- Not Supported */
 201                 seq1 = 0x20;
 202                 crtc17 = 0x80;
 203                 crtc1A |= 0x40;
 204                 break;
 205         case DRM_MODE_DPMS_OFF:
 206                 /* Screen: Off; HSync: Off, VSync: Off */
 207                 seq1 = 0x20;
 208                 crtc17 = 0x00;
 209                 crtc1A |= 0xC0;
 210                 break;
 211         case DRM_MODE_DPMS_ON:
 212         default:
 213                 /* Screen: On; HSync: On, VSync: On */
 214                 seq1 = 0x00;
 215                 crtc17 = 0x80;
 216                 break;
 217         }
 218
 219         NVVgaSeqReset(dev, nv_crtc->index, true);
 220         /* Each head has it's own sequencer, so we can turn it off when we want */
 221         seq1 |= (NVReadVgaSeq(dev, nv_crtc->index, NV_VIO_SR_CLOCK_INDEX) & ~0x20);
 222         NVWriteVgaSeq(dev, nv_crtc->index, NV_VIO_SR_CLOCK_INDEX, seq1);
 223         crtc17 |= (NVReadVgaCrtc(dev, nv_crtc->index, NV_CIO_CR_MODE_INDEX) & ~0x80);
 224         mdelay(10);
 225         NVWriteVgaCrtc(dev, nv_crtc->index, NV_CIO_CR_MODE_INDEX, crtc17);
 226         NVVgaSeqReset(dev, nv_crtc->index, false);
 227
 228         NVWriteVgaCrtc(dev, nv_crtc->index, NV_CIO_CRE_RPC1_INDEX, crtc1A);
 229 }
 230
 231 static void
 232 nv_crtc_mode_set_vga(struct drm_crtc *crtc, struct drm_display_mode *mode)
 233 {
 234         struct drm_device *dev = crtc->dev;
 235         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 236         struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
 237         struct drm_framebuffer *fb = crtc->primary->fb;
 238
 239         /* Calculate our timings */
 240         int horizDisplay        = (mode->crtc_hdisplay >> 3)            - 1;
 241         int horizStart          = (mode->crtc_hsync_start >> 3)         + 1;
 242         int horizEnd            = (mode->crtc_hsync_end >> 3)           + 1;
 243         int horizTotal          = (mode->crtc_htotal >> 3)              - 5;
 244         int horizBlankStart     = (mode->crtc_hdisplay >> 3)            - 1;
 245         int horizBlankEnd       = (mode->crtc_htotal >> 3)              - 1;
 246         int vertDisplay         = mode->crtc_vdisplay                   - 1;
 247         int vertStart           = mode->crtc_vsync_start                - 1;
 248         int vertEnd             = mode->crtc_vsync_end                  - 1;
 249         int vertTotal           = mode->crtc_vtotal                     - 2;
 250         int vertBlankStart      = mode->crtc_vdisplay                   - 1;
 251         int vertBlankEnd        = mode->crtc_vtotal                     - 1;
 252
 253         struct drm_encoder *encoder;
 254         bool fp_output = false;
 255
 256         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 257                 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 258
 259                 if (encoder->crtc == crtc &&
 260                     (nv_encoder->dcb->type == DCB_OUTPUT_LVDS ||
 261                      nv_encoder->dcb->type == DCB_OUTPUT_TMDS))
 262                         fp_output = true;
 263         }
 264
 265         if (fp_output) {
 266                 vertStart = vertTotal - 3;
 267                 vertEnd = vertTotal - 2;
 268                 vertBlankStart = vertStart;
 269                 horizStart = horizTotal - 5;
 270                 horizEnd = horizTotal - 2;
 271                 horizBlankEnd = horizTotal + 4;
 272 #if 0
 273                 if (dev->overlayAdaptor && drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
 274                         /* This reportedly works around some video overlay bandwidth problems */
 275                         horizTotal += 2;
 276 #endif
 277         }
 278
 279         if (mode->flags & DRM_MODE_FLAG_INTERLACE)
 280                 vertTotal |= 1;
 281
 282 #if 0
 283         ErrorF("horizDisplay: 0x%X \n", horizDisplay);
 284         ErrorF("horizStart: 0x%X \n", horizStart);
 285         ErrorF("horizEnd: 0x%X \n", horizEnd);
 286         ErrorF("horizTotal: 0x%X \n", horizTotal);
 287         ErrorF("horizBlankStart: 0x%X \n", horizBlankStart);
 288         ErrorF("horizBlankEnd: 0x%X \n", horizBlankEnd);
 289         ErrorF("vertDisplay: 0x%X \n", vertDisplay);
 290         ErrorF("vertStart: 0x%X \n", vertStart);
 291         ErrorF("vertEnd: 0x%X \n", vertEnd);
 292         ErrorF("vertTotal: 0x%X \n", vertTotal);
 293         ErrorF("vertBlankStart: 0x%X \n", vertBlankStart);
 294         ErrorF("vertBlankEnd: 0x%X \n", vertBlankEnd);
 295 #endif
 296
 297         /*
 298         * compute correct Hsync & Vsync polarity
 299         */
 300         if ((mode->flags & (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))
 301                 && (mode->flags & (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) {
 302
 303                 regp->MiscOutReg = 0x23;
 304                 if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 305                         regp->MiscOutReg |= 0x40;
 306                 if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 307                         regp->MiscOutReg |= 0x80;
 308         } else {
 309                 int vdisplay = mode->vdisplay;
 310                 if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 311                         vdisplay *= 2;
 312                 if (mode->vscan > 1)
 313                         vdisplay *= mode->vscan;
 314                 if (vdisplay < 400)
 315                         regp->MiscOutReg = 0xA3;        /* +hsync -vsync */
 316                 else if (vdisplay < 480)
 317                         regp->MiscOutReg = 0x63;        /* -hsync +vsync */
 318                 else if (vdisplay < 768)
 319                         regp->MiscOutReg = 0xE3;        /* -hsync -vsync */
 320                 else
 321                         regp->MiscOutReg = 0x23;        /* +hsync +vsync */
 322         }
 323
 324         /*
 325          * Time Sequencer
 326          */
 327         regp->Sequencer[NV_VIO_SR_RESET_INDEX] = 0x00;
 328         /* 0x20 disables the sequencer */
 329         if (mode->flags & DRM_MODE_FLAG_CLKDIV2)
 330                 regp->Sequencer[NV_VIO_SR_CLOCK_INDEX] = 0x29;
 331         else
 332                 regp->Sequencer[NV_VIO_SR_CLOCK_INDEX] = 0x21;
 333         regp->Sequencer[NV_VIO_SR_PLANE_MASK_INDEX] = 0x0F;
 334         regp->Sequencer[NV_VIO_SR_CHAR_MAP_INDEX] = 0x00;
 335         regp->Sequencer[NV_VIO_SR_MEM_MODE_INDEX] = 0x0E;
 336
 337         /*
 338          * CRTC
 339          */
 340         regp->CRTC[NV_CIO_CR_HDT_INDEX] = horizTotal;
 341         regp->CRTC[NV_CIO_CR_HDE_INDEX] = horizDisplay;
 342         regp->CRTC[NV_CIO_CR_HBS_INDEX] = horizBlankStart;
 343         regp->CRTC[NV_CIO_CR_HBE_INDEX] = (1 << 7) |
 344                                           XLATE(horizBlankEnd, 0, NV_CIO_CR_HBE_4_0);
 345         regp->CRTC[NV_CIO_CR_HRS_INDEX] = horizStart;
 346         regp->CRTC[NV_CIO_CR_HRE_INDEX] = XLATE(horizBlankEnd, 5, NV_CIO_CR_HRE_HBE_5) |
 347                                           XLATE(horizEnd, 0, NV_CIO_CR_HRE_4_0);
 348         regp->CRTC[NV_CIO_CR_VDT_INDEX] = vertTotal;
 349         regp->CRTC[NV_CIO_CR_OVL_INDEX] = XLATE(vertStart, 9, NV_CIO_CR_OVL_VRS_9) |
 350                                           XLATE(vertDisplay, 9, NV_CIO_CR_OVL_VDE_9) |
 351                                           XLATE(vertTotal, 9, NV_CIO_CR_OVL_VDT_9) |
 352                                           (1 << 4) |
 353                                           XLATE(vertBlankStart, 8, NV_CIO_CR_OVL_VBS_8) |
 354                                           XLATE(vertStart, 8, NV_CIO_CR_OVL_VRS_8) |
 355                                           XLATE(vertDisplay, 8, NV_CIO_CR_OVL_VDE_8) |
 356                                           XLATE(vertTotal, 8, NV_CIO_CR_OVL_VDT_8);
 357         regp->CRTC[NV_CIO_CR_RSAL_INDEX] = 0x00;
 358         regp->CRTC[NV_CIO_CR_CELL_HT_INDEX] = ((mode->flags & DRM_MODE_FLAG_DBLSCAN) ? MASK(NV_CIO_CR_CELL_HT_SCANDBL) : 0) |
 359                                               1 << 6 |
 360                                               XLATE(vertBlankStart, 9, NV_CIO_CR_CELL_HT_VBS_9);
 361         regp->CRTC[NV_CIO_CR_CURS_ST_INDEX] = 0x00;
 362         regp->CRTC[NV_CIO_CR_CURS_END_INDEX] = 0x00;
 363         regp->CRTC[NV_CIO_CR_SA_HI_INDEX] = 0x00;
 364         regp->CRTC[NV_CIO_CR_SA_LO_INDEX] = 0x00;
 365         regp->CRTC[NV_CIO_CR_TCOFF_HI_INDEX] = 0x00;
 366         regp->CRTC[NV_CIO_CR_TCOFF_LO_INDEX] = 0x00;
 367         regp->CRTC[NV_CIO_CR_VRS_INDEX] = vertStart;
 368         regp->CRTC[NV_CIO_CR_VRE_INDEX] = 1 << 5 | XLATE(vertEnd, 0, NV_CIO_CR_VRE_3_0);
 369         regp->CRTC[NV_CIO_CR_VDE_INDEX] = vertDisplay;
 370         /* framebuffer can be larger than crtc scanout area. */
 371         regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = fb->pitches[0] / 8;
 372         regp->CRTC[NV_CIO_CR_ULINE_INDEX] = 0x00;
 373         regp->CRTC[NV_CIO_CR_VBS_INDEX] = vertBlankStart;
 374         regp->CRTC[NV_CIO_CR_VBE_INDEX] = vertBlankEnd;
 375         regp->CRTC[NV_CIO_CR_MODE_INDEX] = 0x43;
 376         regp->CRTC[NV_CIO_CR_LCOMP_INDEX] = 0xff;
 377
 378         /*
 379          * Some extended CRTC registers (they are not saved with the rest of the vga regs).
 380          */
 381
 382         /* framebuffer can be larger than crtc scanout area. */
 383         regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
 384                 XLATE(fb->pitches[0] / 8, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
 385         regp->CRTC[NV_CIO_CRE_42] =
 386                 XLATE(fb->pitches[0] / 8, 11, NV_CIO_CRE_42_OFFSET_11);
 387         regp->CRTC[NV_CIO_CRE_RPC1_INDEX] = mode->crtc_hdisplay < 1280 ?
 388                                             MASK(NV_CIO_CRE_RPC1_LARGE) : 0x00;
 389         regp->CRTC[NV_CIO_CRE_LSR_INDEX] = XLATE(horizBlankEnd, 6, NV_CIO_CRE_LSR_HBE_6) |
 390                                            XLATE(vertBlankStart, 10, NV_CIO_CRE_LSR_VBS_10) |
 391                                            XLATE(vertStart, 10, NV_CIO_CRE_LSR_VRS_10) |
 392                                            XLATE(vertDisplay, 10, NV_CIO_CRE_LSR_VDE_10) |
 393                                            XLATE(vertTotal, 10, NV_CIO_CRE_LSR_VDT_10);
 394         regp->CRTC[NV_CIO_CRE_HEB__INDEX] = XLATE(horizStart, 8, NV_CIO_CRE_HEB_HRS_8) |
 395                                             XLATE(horizBlankStart, 8, NV_CIO_CRE_HEB_HBS_8) |
 396                                             XLATE(horizDisplay, 8, NV_CIO_CRE_HEB_HDE_8) |
 397                                             XLATE(horizTotal, 8, NV_CIO_CRE_HEB_HDT_8);
 398         regp->CRTC[NV_CIO_CRE_EBR_INDEX] = XLATE(vertBlankStart, 11, NV_CIO_CRE_EBR_VBS_11) |
 399                                            XLATE(vertStart, 11, NV_CIO_CRE_EBR_VRS_11) |
 400                                            XLATE(vertDisplay, 11, NV_CIO_CRE_EBR_VDE_11) |
 401                                            XLATE(vertTotal, 11, NV_CIO_CRE_EBR_VDT_11);
 402
 403         if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
 404                 horizTotal = (horizTotal >> 1) & ~1;
 405                 regp->CRTC[NV_CIO_CRE_ILACE__INDEX] = horizTotal;
 406                 regp->CRTC[NV_CIO_CRE_HEB__INDEX] |= XLATE(horizTotal, 8, NV_CIO_CRE_HEB_ILC_8);
 407         } else
 408                 regp->CRTC[NV_CIO_CRE_ILACE__INDEX] = 0xff;  /* interlace off */
 409
 410         /*
 411         * Graphics Display Controller
 412         */
 413         regp->Graphics[NV_VIO_GX_SR_INDEX] = 0x00;
 414         regp->Graphics[NV_VIO_GX_SREN_INDEX] = 0x00;
 415         regp->Graphics[NV_VIO_GX_CCOMP_INDEX] = 0x00;
 416         regp->Graphics[NV_VIO_GX_ROP_INDEX] = 0x00;
 417         regp->Graphics[NV_VIO_GX_READ_MAP_INDEX] = 0x00;
 418         regp->Graphics[NV_VIO_GX_MODE_INDEX] = 0x40; /* 256 color mode */
 419         regp->Graphics[NV_VIO_GX_MISC_INDEX] = 0x05; /* map 64k mem + graphic mode */
 420         regp->Graphics[NV_VIO_GX_DONT_CARE_INDEX] = 0x0F;
 421         regp->Graphics[NV_VIO_GX_BIT_MASK_INDEX] = 0xFF;
 422
 423         regp->Attribute[0]  = 0x00; /* standard colormap translation */
 424         regp->Attribute[1]  = 0x01;
 425         regp->Attribute[2]  = 0x02;
 426         regp->Attribute[3]  = 0x03;
 427         regp->Attribute[4]  = 0x04;
 428         regp->Attribute[5]  = 0x05;
 429         regp->Attribute[6]  = 0x06;
 430         regp->Attribute[7]  = 0x07;
 431         regp->Attribute[8]  = 0x08;
 432         regp->Attribute[9]  = 0x09;
 433         regp->Attribute[10] = 0x0A;
 434         regp->Attribute[11] = 0x0B;
 435         regp->Attribute[12] = 0x0C;
 436         regp->Attribute[13] = 0x0D;
 437         regp->Attribute[14] = 0x0E;
 438         regp->Attribute[15] = 0x0F;
 439         regp->Attribute[NV_CIO_AR_MODE_INDEX] = 0x01; /* Enable graphic mode */
 440         /* Non-vga */
 441         regp->Attribute[NV_CIO_AR_OSCAN_INDEX] = 0x00;
 442         regp->Attribute[NV_CIO_AR_PLANE_INDEX] = 0x0F; /* enable all color planes */
 443         regp->Attribute[NV_CIO_AR_HPP_INDEX] = 0x00;
 444         regp->Attribute[NV_CIO_AR_CSEL_INDEX] = 0x00;
 445 }
 446
 447 /**
 448  * Sets up registers for the given mode/adjusted_mode pair.
 449  *
 450  * The clocks, CRTCs and outputs attached to this CRTC must be off.
 451  *
 452  * This shouldn't enable any clocks, CRTCs, or outputs, but they should
 453  * be easily turned on/off after this.
 454  */
 455 static void
 456 nv_crtc_mode_set_regs(struct drm_crtc *crtc, struct drm_display_mode * mode)
 457 {
 458         struct drm_device *dev = crtc->dev;
 459         struct nouveau_drm *drm = nouveau_drm(dev);
 460         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 461         struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
 462         struct nv04_crtc_reg *savep = &nv04_display(dev)->saved_reg.crtc_reg[nv_crtc->index];
 463         const struct drm_framebuffer *fb = crtc->primary->fb;
 464         struct drm_encoder *encoder;
 465         bool lvds_output = false, tmds_output = false, tv_output = false,
 466                 off_chip_digital = false;
 467
 468         list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
 469                 struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 470                 bool digital = false;
 471
 472                 if (encoder->crtc != crtc)
 473                         continue;
 474
 475                 if (nv_encoder->dcb->type == DCB_OUTPUT_LVDS)
 476                         digital = lvds_output = true;
 477                 if (nv_encoder->dcb->type == DCB_OUTPUT_TV)
 478                         tv_output = true;
 479                 if (nv_encoder->dcb->type == DCB_OUTPUT_TMDS)
 480                         digital = tmds_output = true;
 481                 if (nv_encoder->dcb->location != DCB_LOC_ON_CHIP && digital)
 482                         off_chip_digital = true;
 483         }
 484
 485         /* Registers not directly related to the (s)vga mode */
 486
 487         /* What is the meaning of this register? */
 488         /* A few popular values are 0x18, 0x1c, 0x38, 0x3c */
 489         regp->CRTC[NV_CIO_CRE_ENH_INDEX] = savep->CRTC[NV_CIO_CRE_ENH_INDEX] & ~(1<<5);
 490
 491         regp->crtc_eng_ctrl = 0;
 492         /* Except for rare conditions I2C is enabled on the primary crtc */
 493         if (nv_crtc->index == 0)
 494                 regp->crtc_eng_ctrl |= NV_CRTC_FSEL_I2C;
 495 #if 0
 496         /* Set overlay to desired crtc. */
 497         if (dev->overlayAdaptor) {
 498                 NVPortPrivPtr pPriv = GET_OVERLAY_PRIVATE(dev);
 499                 if (pPriv->overlayCRTC == nv_crtc->index)
 500                         regp->crtc_eng_ctrl |= NV_CRTC_FSEL_OVERLAY;
 501         }
 502 #endif
 503
 504         /* ADDRESS_SPACE_PNVM is the same as setting HCUR_ASI */
 505         regp->cursor_cfg = NV_PCRTC_CURSOR_CONFIG_CUR_LINES_64 |
 506                              NV_PCRTC_CURSOR_CONFIG_CUR_PIXELS_64 |
 507                              NV_PCRTC_CURSOR_CONFIG_ADDRESS_SPACE_PNVM;
 508         if (drm->client.device.info.chipset >= 0x11)
 509                 regp->cursor_cfg |= NV_PCRTC_CURSOR_CONFIG_CUR_BPP_32;
 510         if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
 511                 regp->cursor_cfg |= NV_PCRTC_CURSOR_CONFIG_DOUBLE_SCAN_ENABLE;
 512
 513         /* Unblock some timings */
 514         regp->CRTC[NV_CIO_CRE_53] = 0;
 515         regp->CRTC[NV_CIO_CRE_54] = 0;
 516
 517         /* 0x00 is disabled, 0x11 is lvds, 0x22 crt and 0x88 tmds */
 518         if (lvds_output)
 519                 regp->CRTC[NV_CIO_CRE_SCRATCH3__INDEX] = 0x11;
 520         else if (tmds_output)
 521                 regp->CRTC[NV_CIO_CRE_SCRATCH3__INDEX] = 0x88;
 522         else
 523                 regp->CRTC[NV_CIO_CRE_SCRATCH3__INDEX] = 0x22;
 524
 525         /* These values seem to vary */
 526         /* This register seems to be used by the bios to make certain decisions on some G70 cards? */
 527         regp->CRTC[NV_CIO_CRE_SCRATCH4__INDEX] = savep->CRTC[NV_CIO_CRE_SCRATCH4__INDEX];
 528
 529         nv_crtc_set_digital_vibrance(crtc, nv_crtc->saturation);
 530
 531         /* probably a scratch reg, but kept for cargo-cult purposes:
 532          * bit0: crtc0?, head A
 533          * bit6: lvds, head A
 534          * bit7: (only in X), head A
 535          */
 536         if (nv_crtc->index == 0)
 537                 regp->CRTC[NV_CIO_CRE_4B] = savep->CRTC[NV_CIO_CRE_4B] | 0x80;
 538
 539         /* The blob seems to take the current value from crtc 0, add 4 to that
 540          * and reuse the old value for crtc 1 */
 541         regp->CRTC[NV_CIO_CRE_TVOUT_LATENCY] = nv04_display(dev)->saved_reg.crtc_reg[0].CRTC[NV_CIO_CRE_TVOUT_LATENCY];
 542         if (!nv_crtc->index)
 543                 regp->CRTC[NV_CIO_CRE_TVOUT_LATENCY] += 4;
 544
 545         /* the blob sometimes sets |= 0x10 (which is the same as setting |=
 546          * 1 << 30 on 0x60.830), for no apparent reason */
 547         regp->CRTC[NV_CIO_CRE_59] = off_chip_digital;
 548
 549         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
 550                 regp->CRTC[0x9f] = off_chip_digital ? 0x11 : 0x1;
 551
 552         regp->crtc_830 = mode->crtc_vdisplay - 3;
 553         regp->crtc_834 = mode->crtc_vdisplay - 1;
 554
 555         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
 556                 /* This is what the blob does */
 557                 regp->crtc_850 = NVReadCRTC(dev, 0, NV_PCRTC_850);
 558
 559         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_RANKINE)
 560                 regp->gpio_ext = NVReadCRTC(dev, 0, NV_PCRTC_GPIO_EXT);
 561
 562         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
 563                 regp->crtc_cfg = NV10_PCRTC_CONFIG_START_ADDRESS_HSYNC;
 564         else
 565                 regp->crtc_cfg = NV04_PCRTC_CONFIG_START_ADDRESS_HSYNC;
 566
 567         /* Some misc regs */
 568         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE) {
 569                 regp->CRTC[NV_CIO_CRE_85] = 0xFF;
 570                 regp->CRTC[NV_CIO_CRE_86] = 0x1;
 571         }
 572
 573         regp->CRTC[NV_CIO_CRE_PIXEL_INDEX] = (fb->format->depth + 1) / 8;
 574         /* Enable slaved mode (called MODE_TV in nv4ref.h) */
 575         if (lvds_output || tmds_output || tv_output)
 576                 regp->CRTC[NV_CIO_CRE_PIXEL_INDEX] |= (1 << 7);
 577
 578         /* Generic PRAMDAC regs */
 579
 580         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_CELSIUS)
 581                 /* Only bit that bios and blob set. */
 582                 regp->nv10_cursync = (1 << 25);
 583
 584         regp->ramdac_gen_ctrl = NV_PRAMDAC_GENERAL_CONTROL_BPC_8BITS |
 585                                 NV_PRAMDAC_GENERAL_CONTROL_VGA_STATE_SEL |
 586                                 NV_PRAMDAC_GENERAL_CONTROL_PIXMIX_ON;
 587         if (fb->format->depth == 16)
 588                 regp->ramdac_gen_ctrl |= NV_PRAMDAC_GENERAL_CONTROL_ALT_MODE_SEL;
 589         if (drm->client.device.info.chipset >= 0x11)
 590                 regp->ramdac_gen_ctrl |= NV_PRAMDAC_GENERAL_CONTROL_PIPE_LONG;
 591
 592         regp->ramdac_630 = 0; /* turn off green mode (tv test pattern?) */
 593         regp->tv_setup = 0;
 594
 595         nv_crtc_set_image_sharpening(crtc, nv_crtc->sharpness);
 596
 597         /* Some values the blob sets */
 598         regp->ramdac_8c0 = 0x100;
 599         regp->ramdac_a20 = 0x0;
 600         regp->ramdac_a24 = 0xfffff;
 601         regp->ramdac_a34 = 0x1;
 602 }
 603
 604 static int
 605 nv_crtc_swap_fbs(struct drm_crtc *crtc, struct drm_framebuffer *old_fb)
 606 {
 607         struct nv04_display *disp = nv04_display(crtc->dev);
 608         struct drm_framebuffer *fb = crtc->primary->fb;
 609         struct nouveau_bo *nvbo = nouveau_gem_object(fb->obj[0]);
 610         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 611         int ret;
 612
 613         ret = nouveau_bo_pin(nvbo, TTM_PL_FLAG_VRAM, false);
 614         if (ret == 0) {
 615                 if (disp->image[nv_crtc->index])
 616                         nouveau_bo_unpin(disp->image[nv_crtc->index]);
 617                 nouveau_bo_ref(nvbo, &disp->image[nv_crtc->index]);
 618         }
 619
 620         return ret;
 621 }
 622
 623 /**
 624  * Sets up registers for the given mode/adjusted_mode pair.
 625  *
 626  * The clocks, CRTCs and outputs attached to this CRTC must be off.
 627  *
 628  * This shouldn't enable any clocks, CRTCs, or outputs, but they should
 629  * be easily turned on/off after this.
 630  */
 631 static int
 632 nv_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
 633                  struct drm_display_mode *adjusted_mode,
 634                  int x, int y, struct drm_framebuffer *old_fb)
 635 {
 636         struct drm_device *dev = crtc->dev;
 637         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 638         struct nouveau_drm *drm = nouveau_drm(dev);
 639         int ret;
 640
 641         NV_DEBUG(drm, "CTRC mode on CRTC %d:\n", nv_crtc->index);
 642         drm_mode_debug_printmodeline(adjusted_mode);
 643
 644         ret = nv_crtc_swap_fbs(crtc, old_fb);
 645         if (ret)
 646                 return ret;
 647
 648         /* unlock must come after turning off FP_TG_CONTROL in output_prepare */
 649         nv_lock_vga_crtc_shadow(dev, nv_crtc->index, -1);
 650
 651         nv_crtc_mode_set_vga(crtc, adjusted_mode);
 652         /* calculated in nv04_dfp_prepare, nv40 needs it written before calculating PLLs */
 653         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE)
 654                 NVWriteRAMDAC(dev, 0, NV_PRAMDAC_SEL_CLK, nv04_display(dev)->mode_reg.sel_clk);
 655         nv_crtc_mode_set_regs(crtc, adjusted_mode);
 656         nv_crtc_calc_state_ext(crtc, mode, adjusted_mode->clock);
 657         return 0;
 658 }
 659
 660 static void nv_crtc_save(struct drm_crtc *crtc)
 661 {
 662         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 663         struct drm_device *dev = crtc->dev;
 664         struct nv04_mode_state *state = &nv04_display(dev)->mode_reg;
 665         struct nv04_crtc_reg *crtc_state = &state->crtc_reg[nv_crtc->index];
 666         struct nv04_mode_state *saved = &nv04_display(dev)->saved_reg;
 667         struct nv04_crtc_reg *crtc_saved = &saved->crtc_reg[nv_crtc->index];
 668
 669         if (nv_two_heads(crtc->dev))
 670                 NVSetOwner(crtc->dev, nv_crtc->index);
 671
 672         nouveau_hw_save_state(crtc->dev, nv_crtc->index, saved);
 673
 674         /* init some state to saved value */
 675         state->sel_clk = saved->sel_clk & ~(0x5 << 16);
 676         crtc_state->CRTC[NV_CIO_CRE_LCD__INDEX] = crtc_saved->CRTC[NV_CIO_CRE_LCD__INDEX];
 677         state->pllsel = saved->pllsel & ~(PLLSEL_VPLL1_MASK | PLLSEL_VPLL2_MASK | PLLSEL_TV_MASK);
 678         crtc_state->gpio_ext = crtc_saved->gpio_ext;
 679 }
 680
 681 static void nv_crtc_restore(struct drm_crtc *crtc)
 682 {
 683         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 684         struct drm_device *dev = crtc->dev;
 685         int head = nv_crtc->index;
 686         uint8_t saved_cr21 = nv04_display(dev)->saved_reg.crtc_reg[head].CRTC[NV_CIO_CRE_21];
 687
 688         if (nv_two_heads(crtc->dev))
 689                 NVSetOwner(crtc->dev, head);
 690
 691         nouveau_hw_load_state(crtc->dev, head, &nv04_display(dev)->saved_reg);
 692         nv_lock_vga_crtc_shadow(crtc->dev, head, saved_cr21);
 693
 694         nv_crtc->last_dpms = NV_DPMS_CLEARED;
 695 }
 696
 697 static void nv_crtc_prepare(struct drm_crtc *crtc)
 698 {
 699         struct drm_device *dev = crtc->dev;
 700         struct nouveau_drm *drm = nouveau_drm(dev);
 701         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 702         const struct drm_crtc_helper_funcs *funcs = crtc->helper_private;
 703
 704         if (nv_two_heads(dev))
 705                 NVSetOwner(dev, nv_crtc->index);
 706
 707         drm_crtc_vblank_off(crtc);
 708         funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
 709
 710         NVBlankScreen(dev, nv_crtc->index, true);
 711
 712         /* Some more preparation. */
 713         NVWriteCRTC(dev, nv_crtc->index, NV_PCRTC_CONFIG, NV_PCRTC_CONFIG_START_ADDRESS_NON_VGA);
 714         if (drm->client.device.info.family == NV_DEVICE_INFO_V0_CURIE) {
 715                 uint32_t reg900 = NVReadRAMDAC(dev, nv_crtc->index, NV_PRAMDAC_900);
 716                 NVWriteRAMDAC(dev, nv_crtc->index, NV_PRAMDAC_900, reg900 & ~0x10000);
 717         }
 718 }
 719
 720 static void nv_crtc_commit(struct drm_crtc *crtc)
 721 {
 722         struct drm_device *dev = crtc->dev;
 723         const struct drm_crtc_helper_funcs *funcs = crtc->helper_private;
 724         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 725
 726         nouveau_hw_load_state(dev, nv_crtc->index, &nv04_display(dev)->mode_reg);
 727         nv04_crtc_mode_set_base(crtc, crtc->x, crtc->y, NULL);
 728
 729 #ifdef __BIG_ENDIAN
 730         /* turn on LFB swapping */
 731         {
 732                 uint8_t tmp = NVReadVgaCrtc(dev, nv_crtc->index, NV_CIO_CRE_RCR);
 733                 tmp |= MASK(NV_CIO_CRE_RCR_ENDIAN_BIG);
 734                 NVWriteVgaCrtc(dev, nv_crtc->index, NV_CIO_CRE_RCR, tmp);
 735         }
 736 #endif
 737
 738         funcs->dpms(crtc, DRM_MODE_DPMS_ON);
 739         drm_crtc_vblank_on(crtc);
 740 }
 741
 742 static void nv_crtc_destroy(struct drm_crtc *crtc)
 743 {
 744         struct nv04_display *disp = nv04_display(crtc->dev);
 745         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 746
 747         if (!nv_crtc)
 748                 return;
 749
 750         drm_crtc_cleanup(crtc);
 751
 752         if (disp->image[nv_crtc->index])
 753                 nouveau_bo_unpin(disp->image[nv_crtc->index]);
 754         nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]);
 755
 756         nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 757         nouveau_bo_unpin(nv_crtc->cursor.nvbo);
 758         nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
 759         kfree(nv_crtc);
 760 }
 761
 762 static void
 763 nv_crtc_gamma_load(struct drm_crtc *crtc)
 764 {
 765         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 766         struct drm_device *dev = nv_crtc->base.dev;
 767         struct rgb { uint8_t r, g, b; } __attribute__((packed)) *rgbs;
 768         u16 *r, *g, *b;
 769         int i;
 770
 771         rgbs = (struct rgb *)nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index].DAC;
 772         r = crtc->gamma_store;
 773         g = r + crtc->gamma_size;
 774         b = g + crtc->gamma_size;
 775
 776         for (i = 0; i < 256; i++) {
 777                 rgbs[i].r = *r++ >> 8;
 778                 rgbs[i].g = *g++ >> 8;
 779                 rgbs[i].b = *b++ >> 8;
 780         }
 781
 782         nouveau_hw_load_state_palette(dev, nv_crtc->index, &nv04_display(dev)->mode_reg);
 783 }
 784
 785 static void
 786 nv_crtc_disable(struct drm_crtc *crtc)
 787 {
 788         struct nv04_display *disp = nv04_display(crtc->dev);
 789         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 790         if (disp->image[nv_crtc->index])
 791                 nouveau_bo_unpin(disp->image[nv_crtc->index]);
 792         nouveau_bo_ref(NULL, &disp->image[nv_crtc->index]);
 793 }
 794
 795 static int
 796 nv_crtc_gamma_set(struct drm_crtc *crtc, u16 *r, u16 *g, u16 *b,
 797                   uint32_t size,
 798                   struct drm_modeset_acquire_ctx *ctx)
 799 {
 800         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 801
 802         /* We need to know the depth before we upload, but it's possible to
 803          * get called before a framebuffer is bound.  If this is the case,
 804          * mark the lut values as dirty by setting depth==0, and it'll be
 805          * uploaded on the first mode_set_base()
 806          */
 807         if (!nv_crtc->base.primary->fb) {
 808                 nv_crtc->lut.depth = 0;
 809                 return 0;
 810         }
 811
 812         nv_crtc_gamma_load(crtc);
 813
 814         return 0;
 815 }
 816
 817 static int
 818 nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 819                            struct drm_framebuffer *passed_fb,
 820                            int x, int y, bool atomic)
 821 {
 822         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 823         struct drm_device *dev = crtc->dev;
 824         struct nouveau_drm *drm = nouveau_drm(dev);
 825         struct nv04_crtc_reg *regp = &nv04_display(dev)->mode_reg.crtc_reg[nv_crtc->index];
 826         struct nouveau_bo *nvbo;
 827         struct drm_framebuffer *drm_fb;
 828         int arb_burst, arb_lwm;
 829
 830         NV_DEBUG(drm, "index %d\n", nv_crtc->index);
 831
 832         /* no fb bound */
 833         if (!atomic && !crtc->primary->fb) {
 834                 NV_DEBUG(drm, "No FB bound\n");
 835                 return 0;
 836         }
 837
 838         /* If atomic, we want to switch to the fb we were passed, so
 839          * now we update pointers to do that.
 840          */
 841         if (atomic) {
 842                 drm_fb = passed_fb;
 843         } else {
 844                 drm_fb = crtc->primary->fb;
 845         }
 846
 847         nvbo = nouveau_gem_object(drm_fb->obj[0]);
 848         nv_crtc->fb.offset = nvbo->bo.offset;
 849
 850         if (nv_crtc->lut.depth != drm_fb->format->depth) {
 851                 nv_crtc->lut.depth = drm_fb->format->depth;
 852                 nv_crtc_gamma_load(crtc);
 853         }
 854
 855         /* Update the framebuffer format. */
 856         regp->CRTC[NV_CIO_CRE_PIXEL_INDEX] &= ~3;
 857         regp->CRTC[NV_CIO_CRE_PIXEL_INDEX] |= (drm_fb->format->depth + 1) / 8;
 858         regp->ramdac_gen_ctrl &= ~NV_PRAMDAC_GENERAL_CONTROL_ALT_MODE_SEL;
 859         if (drm_fb->format->depth == 16)
 860                 regp->ramdac_gen_ctrl |= NV_PRAMDAC_GENERAL_CONTROL_ALT_MODE_SEL;
 861         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_PIXEL_INDEX);
 862         NVWriteRAMDAC(dev, nv_crtc->index, NV_PRAMDAC_GENERAL_CONTROL,
 863                       regp->ramdac_gen_ctrl);
 864
 865         regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = drm_fb->pitches[0] >> 3;
 866         regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
 867                 XLATE(drm_fb->pitches[0] >> 3, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
 868         regp->CRTC[NV_CIO_CRE_42] =
 869                 XLATE(drm_fb->pitches[0] / 8, 11, NV_CIO_CRE_42_OFFSET_11);
 870         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_RPC0_INDEX);
 871         crtc_wr_cio_state(crtc, regp, NV_CIO_CR_OFFSET_INDEX);
 872         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_42);
 873
 874         /* Update the framebuffer location. */
 875         regp->fb_start = nv_crtc->fb.offset & ~3;
 876         regp->fb_start += (y * drm_fb->pitches[0]) + (x * drm_fb->format->cpp[0]);
 877         nv_set_crtc_base(dev, nv_crtc->index, regp->fb_start);
 878
 879         /* Update the arbitration parameters. */
 880         nouveau_calc_arb(dev, crtc->mode.clock, drm_fb->format->cpp[0] * 8,
 881                          &arb_burst, &arb_lwm);
 882
 883         regp->CRTC[NV_CIO_CRE_FF_INDEX] = arb_burst;
 884         regp->CRTC[NV_CIO_CRE_FFLWM__INDEX] = arb_lwm & 0xff;
 885         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_FF_INDEX);
 886         crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_FFLWM__INDEX);
 887
 888         if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_KELVIN) {
 889                 regp->CRTC[NV_CIO_CRE_47] = arb_lwm >> 8;
 890                 crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_47);
 891         }
 892
 893         return 0;
 894 }
 895
 896 static int
 897 nv04_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 898                         struct drm_framebuffer *old_fb)
 899 {
 900         int ret = nv_crtc_swap_fbs(crtc, old_fb);
 901         if (ret)
 902                 return ret;
 903         return nv04_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
 904 }
 905
 906 static int
 907 nv04_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
 908                                struct drm_framebuffer *fb,
 909                                int x, int y, enum mode_set_atomic state)
 910 {
 911         struct nouveau_drm *drm = nouveau_drm(crtc->dev);
 912         struct drm_device *dev = drm->dev;
 913
 914         if (state == ENTER_ATOMIC_MODE_SET)
 915                 nouveau_fbcon_accel_save_disable(dev);
 916         else
 917                 nouveau_fbcon_accel_restore(dev);
 918
 919         return nv04_crtc_do_mode_set_base(crtc, fb, x, y, true);
 920 }
 921
 922 static void nv04_cursor_upload(struct drm_device *dev, struct nouveau_bo *src,
 923                                struct nouveau_bo *dst)
 924 {
 925         int width = nv_cursor_width(dev);
 926         uint32_t pixel;
 927         int i, j;
 928
 929         for (i = 0; i < width; i++) {
 930                 for (j = 0; j < width; j++) {
 931                         pixel = nouveau_bo_rd32(src, i*64 + j);
 932
 933                         nouveau_bo_wr16(dst, i*width + j, (pixel & 0x80000000) >> 16
 934                                      | (pixel & 0xf80000) >> 9
 935                                      | (pixel & 0xf800) >> 6
 936                                      | (pixel & 0xf8) >> 3);
 937                 }
 938         }
 939 }
 940
 941 static void nv11_cursor_upload(struct drm_device *dev, struct nouveau_bo *src,
 942                                struct nouveau_bo *dst)
 943 {
 944         uint32_t pixel;
 945         int alpha, i;
 946
 947         /* nv11+ supports premultiplied (PM), or non-premultiplied (NPM) alpha
 948          * cursors (though NPM in combination with fp dithering may not work on
 949          * nv11, from "nv" driver history)
 950          * NPM mode needs NV_PCRTC_CURSOR_CONFIG_ALPHA_BLEND set and is what the
 951          * blob uses, however we get given PM cursors so we use PM mode
 952          */
 953         for (i = 0; i < 64 * 64; i++) {
 954                 pixel = nouveau_bo_rd32(src, i);
 955
 956                 /* hw gets unhappy if alpha <= rgb values.  for a PM image "less
 957                  * than" shouldn't happen; fix "equal to" case by adding one to
 958                  * alpha channel (slightly inaccurate, but so is attempting to
 959                  * get back to NPM images, due to limits of integer precision)
 960                  */
 961                 alpha = pixel >> 24;
 962                 if (alpha > 0 && alpha < 255)
 963                         pixel = (pixel & 0x00ffffff) | ((alpha + 1) << 24);
 964
 965 #ifdef __BIG_ENDIAN
 966                 {
 967                         struct nouveau_drm *drm = nouveau_drm(dev);
 968
 969                         if (drm->client.device.info.chipset == 0x11) {
 970                                 pixel = ((pixel & 0x000000ff) << 24) |
 971                                         ((pixel & 0x0000ff00) << 8) |
 972                                         ((pixel & 0x00ff0000) >> 8) |
 973                                         ((pixel & 0xff000000) >> 24);
 974                         }
 975                 }
 976 #endif
 977
 978                 nouveau_bo_wr32(dst, i, pixel);
 979         }
 980 }
 981
 982 static int
 983 nv04_crtc_cursor_set(struct drm_crtc *crtc, struct drm_file *file_priv,
 984                      uint32_t buffer_handle, uint32_t width, uint32_t height)
 985 {
 986         struct nouveau_drm *drm = nouveau_drm(crtc->dev);
 987         struct drm_device *dev = drm->dev;
 988         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 989         struct nouveau_bo *cursor = NULL;
 990         struct drm_gem_object *gem;
 991         int ret = 0;
 992
 993         if (!buffer_handle) {
 994                 nv_crtc->cursor.hide(nv_crtc, true);
 995                 return 0;
 996         }
 997
 998         if (width != 64 || height != 64)
 999                 return -EINVAL;
1000
1001         gem = drm_gem_object_lookup(file_priv, buffer_handle);
1002         if (!gem)
1003                 return -ENOENT;
1004         cursor = nouveau_gem_object(gem);
1005
1006         ret = nouveau_bo_map(cursor);
1007         if (ret)
1008                 goto out;
1009
1010         if (drm->client.device.info.chipset >= 0x11)
1011                 nv11_cursor_upload(dev, cursor, nv_crtc->cursor.nvbo);
1012         else
1013                 nv04_cursor_upload(dev, cursor, nv_crtc->cursor.nvbo);
1014
1015         nouveau_bo_unmap(cursor);
1016         nv_crtc->cursor.offset = nv_crtc->cursor.nvbo->bo.offset;
1017         nv_crtc->cursor.set_offset(nv_crtc, nv_crtc->cursor.offset);
1018         nv_crtc->cursor.show(nv_crtc, true);
1019 out:
1020         drm_gem_object_put(gem);
1021         return ret;
1022 }
1023
1024 static int
1025 nv04_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
1026 {
1027         struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
1028
1029         nv_crtc->cursor.set_pos(nv_crtc, x, y);
1030         return 0;
1031 }
1032
1033 struct nv04_page_flip_state {
1034         struct list_head head;
1035         struct drm_pending_vblank_event *event;
1036         struct drm_crtc *crtc;
1037         int bpp, pitch;
1038         u64 offset;
1039 };
1040
1041 static int
1042 nv04_finish_page_flip(struct nouveau_channel *chan,
1043                       struct nv04_page_flip_state *ps)
1044 {
1045         struct nouveau_fence_chan *fctx = chan->fence;
1046         struct nouveau_drm *drm = chan->drm;
1047         struct drm_device *dev = drm->dev;
1048         struct nv04_page_flip_state *s;
1049         unsigned long flags;
1050
1051         spin_lock_irqsave(&dev->event_lock, flags);
1052
1053         if (list_empty(&fctx->flip)) {
1054                 NV_ERROR(drm, "unexpected pageflip\n");
1055                 spin_unlock_irqrestore(&dev->event_lock, flags);
1056                 return -EINVAL;
1057         }
1058
1059         s = list_first_entry(&fctx->flip, struct nv04_page_flip_state, head);
1060         if (s->event) {
1061                 drm_crtc_arm_vblank_event(s->crtc, s->event);
1062         } else {
1063                 /* Give up ownership of vblank for page-flipped crtc */
1064                 drm_crtc_vblank_put(s->crtc);
1065         }
1066
1067         list_del(&s->head);
1068         if (ps)
1069                 *ps = *s;
1070         kfree(s);
1071
1072         spin_unlock_irqrestore(&dev->event_lock, flags);
1073         return 0;
1074 }
1075
1076 int
1077 nv04_flip_complete(struct nvif_notify *notify)
1078 {
1079         struct nouveau_cli *cli = (void *)notify->object->client;
1080         struct nouveau_drm *drm = cli->drm;
1081         struct nouveau_channel *chan = drm->channel;
1082         struct nv04_page_flip_state state;
1083
1084         if (!nv04_finish_page_flip(chan, &state)) {
1085                 nv_set_crtc_base(drm->dev, drm_crtc_index(state.crtc),
1086                                  state.offset + state.crtc->y *
1087                                  state.pitch + state.crtc->x *
1088                                  state.bpp / 8);
1089         }
1090
1091         return NVIF_NOTIFY_KEEP;
1092 }
1093
1094 static int
1095 nv04_page_flip_emit(struct nouveau_channel *chan,
1096                     struct nouveau_bo *old_bo,
1097                     struct nouveau_bo *new_bo,
1098                     struct nv04_page_flip_state *s,
1099                     struct nouveau_fence **pfence)
1100 {
1101         struct nouveau_fence_chan *fctx = chan->fence;
1102         struct nouveau_drm *drm = chan->drm;
1103         struct drm_device *dev = drm->dev;
1104         unsigned long flags;
1105         int ret;
1106
1107         /* Queue it to the pending list */
1108         spin_lock_irqsave(&dev->event_lock, flags);
1109         list_add_tail(&s->head, &fctx->flip);
1110         spin_unlock_irqrestore(&dev->event_lock, flags);
1111
1112         /* Synchronize with the old framebuffer */
1113         ret = nouveau_fence_sync(old_bo, chan, false, false);
1114         if (ret)
1115                 goto fail;
1116
1117         /* Emit the pageflip */
1118         ret = RING_SPACE(chan, 2);
1119         if (ret)
1120                 goto fail;
1121
1122         BEGIN_NV04(chan, NvSubSw, NV_SW_PAGE_FLIP, 1);
1123         OUT_RING  (chan, 0x00000000);
1124         FIRE_RING (chan);
1125
1126         ret = nouveau_fence_new(chan, false, pfence);
1127         if (ret)
1128                 goto fail;
1129
1130         return 0;
1131 fail:
1132         spin_lock_irqsave(&dev->event_lock, flags);
1133         list_del(&s->head);
1134         spin_unlock_irqrestore(&dev->event_lock, flags);
1135         return ret;
1136 }
1137
1138 static int
1139 nv04_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
1140                     struct drm_pending_vblank_event *event, u32 flags,
1141                     struct drm_modeset_acquire_ctx *ctx)
1142 {
1143         const int swap_interval = (flags & DRM_MODE_PAGE_FLIP_ASYNC) ? 0 : 1;
1144         struct drm_device *dev = crtc->dev;
1145         struct nouveau_drm *drm = nouveau_drm(dev);
1146         struct drm_framebuffer *old_fb = crtc->primary->fb;
1147         struct nouveau_bo *old_bo = nouveau_gem_object(old_fb->obj[0]);
1148         struct nouveau_bo *new_bo = nouveau_gem_object(fb->obj[0]);
1149         struct nv04_page_flip_state *s;
1150         struct nouveau_channel *chan;
1151         struct nouveau_cli *cli;
1152         struct nouveau_fence *fence;
1153         struct nv04_display *dispnv04 = nv04_display(dev);
1154         int head = nouveau_crtc(crtc)->index;
1155         int ret;
1156
1157         chan = drm->channel;
1158         if (!chan)
1159                 return -ENODEV;
1160         cli = (void *)chan->user.client;
1161
1162         s = kzalloc(sizeof(*s), GFP_KERNEL);
1163         if (!s)
1164                 return -ENOMEM;
1165
1166         if (new_bo != old_bo) {
1167                 ret = nouveau_bo_pin(new_bo, TTM_PL_FLAG_VRAM, true);
1168                 if (ret)
1169                         goto fail_free;
1170         }
1171
1172         mutex_lock(&cli->mutex);
1173         ret = ttm_bo_reserve(&new_bo->bo, true, false, NULL);
1174         if (ret)
1175                 goto fail_unpin;
1176
1177         /* synchronise rendering channel with the kernel's channel */
1178         ret = nouveau_fence_sync(new_bo, chan, false, true);
1179         if (ret) {
1180                 ttm_bo_unreserve(&new_bo->bo);
1181                 goto fail_unpin;
1182         }
1183
1184         if (new_bo != old_bo) {
1185                 ttm_bo_unreserve(&new_bo->bo);
1186
1187                 ret = ttm_bo_reserve(&old_bo->bo, true, false, NULL);
1188                 if (ret)
1189                         goto fail_unpin;
1190         }
1191
1192         /* Initialize a page flip struct */
1193         *s = (struct nv04_page_flip_state)
1194                 { { }, event, crtc, fb->format->cpp[0] * 8, fb->pitches[0],
1195                   new_bo->bo.offset };
1196
1197         /* Keep vblanks on during flip, for the target crtc of this flip */
1198         drm_crtc_vblank_get(crtc);
1199
1200         /* Emit a page flip */
1201         if (swap_interval) {
1202                 ret = RING_SPACE(chan, 8);
1203                 if (ret)
1204                         goto fail_unreserve;
1205
1206                 BEGIN_NV04(chan, NvSubImageBlit, 0x012c, 1);
1207                 OUT_RING  (chan, 0);
1208                 BEGIN_NV04(chan, NvSubImageBlit, 0x0134, 1);
1209                 OUT_RING  (chan, head);
1210                 BEGIN_NV04(chan, NvSubImageBlit, 0x0100, 1);
1211                 OUT_RING  (chan, 0);
1212                 BEGIN_NV04(chan, NvSubImageBlit, 0x0130, 1);
1213                 OUT_RING  (chan, 0);
1214         }
1215
1216         nouveau_bo_ref(new_bo, &dispnv04->image[head]);
1217
1218         ret = nv04_page_flip_emit(chan, old_bo, new_bo, s, &fence);
1219         if (ret)
1220                 goto fail_unreserve;
1221         mutex_unlock(&cli->mutex);
1222
1223         /* Update the crtc struct and cleanup */
1224         crtc->primary->fb = fb;
1225
1226         nouveau_bo_fence(old_bo, fence, false);
1227         ttm_bo_unreserve(&old_bo->bo);
1228         if (old_bo != new_bo)
1229                 nouveau_bo_unpin(old_bo);
1230         nouveau_fence_unref(&fence);
1231         return 0;
1232
1233 fail_unreserve:
1234         drm_crtc_vblank_put(crtc);
1235         ttm_bo_unreserve(&old_bo->bo);
1236 fail_unpin:
1237         mutex_unlock(&cli->mutex);
1238         if (old_bo != new_bo)
1239                 nouveau_bo_unpin(new_bo);
1240 fail_free:
1241         kfree(s);
1242         return ret;
1243 }
1244
1245 static const struct drm_crtc_funcs nv04_crtc_funcs = {
1246         .cursor_set = nv04_crtc_cursor_set,
1247         .cursor_move = nv04_crtc_cursor_move,
1248         .gamma_set = nv_crtc_gamma_set,
1249         .set_config = drm_crtc_helper_set_config,
1250         .page_flip = nv04_crtc_page_flip,
1251         .destroy = nv_crtc_destroy,
1252         .enable_vblank = nouveau_display_vblank_enable,
1253         .disable_vblank = nouveau_display_vblank_disable,
1254         .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp,
1255 };
1256
1257 static const struct drm_crtc_helper_funcs nv04_crtc_helper_funcs = {
1258         .dpms = nv_crtc_dpms,
1259         .prepare = nv_crtc_prepare,
1260         .commit = nv_crtc_commit,
1261         .mode_set = nv_crtc_mode_set,
1262         .mode_set_base = nv04_crtc_mode_set_base,
1263         .mode_set_base_atomic = nv04_crtc_mode_set_base_atomic,
1264         .disable = nv_crtc_disable,
1265         .get_scanout_position = nouveau_display_scanoutpos,
1266 };
1267
1268 static const uint32_t modeset_formats[] = {
1269         DRM_FORMAT_XRGB8888,
1270         DRM_FORMAT_RGB565,
1271         DRM_FORMAT_XRGB1555,
1272 };
1273
1274 static struct drm_plane *
1275 create_primary_plane(struct drm_device *dev)
1276 {
1277         struct drm_plane *primary;
1278         int ret;
1279
1280         primary = kzalloc(sizeof(*primary), GFP_KERNEL);
1281         if (primary == NULL) {
1282                 DRM_DEBUG_KMS("Failed to allocate primary plane\n");
1283                 return NULL;
1284         }
1285
1286         /* possible_crtc's will be filled in later by crtc_init */
1287         ret = drm_universal_plane_init(dev, primary, 0,
1288                                        &drm_primary_helper_funcs,
1289                                        modeset_formats,
1290                                        ARRAY_SIZE(modeset_formats), NULL,
1291                                        DRM_PLANE_TYPE_PRIMARY, NULL);
1292         if (ret) {
1293                 kfree(primary);
1294                 primary = NULL;
1295         }
1296
1297         return primary;
1298 }
1299
1300 int
1301 nv04_crtc_create(struct drm_device *dev, int crtc_num)
1302 {
1303         struct nouveau_crtc *nv_crtc;
1304         int ret;
1305
1306         nv_crtc = kzalloc(sizeof(*nv_crtc), GFP_KERNEL);
1307         if (!nv_crtc)
1308                 return -ENOMEM;
1309
1310         nv_crtc->lut.depth = 0;
1311
1312         nv_crtc->index = crtc_num;
1313         nv_crtc->last_dpms = NV_DPMS_CLEARED;
1314
1315         nv_crtc->save = nv_crtc_save;
1316         nv_crtc->restore = nv_crtc_restore;
1317
1318         drm_crtc_init_with_planes(dev, &nv_crtc->base,
1319                                   create_primary_plane(dev), NULL,
1320                                   &nv04_crtc_funcs, NULL);
1321         drm_crtc_helper_add(&nv_crtc->base, &nv04_crtc_helper_funcs);
1322         drm_mode_crtc_set_gamma_size(&nv_crtc->base, 256);
1323
1324         ret = nouveau_bo_new(&nouveau_drm(dev)->client, 64*64*4, 0x100,
1325                              TTM_PL_FLAG_VRAM, 0, 0x0000, NULL, NULL,
1326                              &nv_crtc->cursor.nvbo);
1327         if (!ret) {
1328                 ret = nouveau_bo_pin(nv_crtc->cursor.nvbo, TTM_PL_FLAG_VRAM, false);
1329                 if (!ret) {
1330                         ret = nouveau_bo_map(nv_crtc->cursor.nvbo);
1331                         if (ret)
1332                                 nouveau_bo_unpin(nv_crtc->cursor.nvbo);
1333                 }
1334                 if (ret)
1335                         nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
1336         }
1337
1338         nv04_cursor_init(nv_crtc);
1339
1340         return 0;
1341 }