drivers/gpu/drm/nouveau/dispnv04/hw.h

   1 /*
   2  * Copyright 2008 Stuart Bennett
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
  18  * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
  19  * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  20  * SOFTWARE.
  21  */
  22
  23 #ifndef __NOUVEAU_HW_H__
  24 #define __NOUVEAU_HW_H__
  25
  26 #include <drm/drmP.h>
  27 #include "disp.h"
  28 #include "nvreg.h"
  29
  30 #include <subdev/bios/pll.h>
  31
  32 #define MASK(field) ( \
  33         (0xffffffff >> (31 - ((1 ? field) - (0 ? field)))) << (0 ? field))
  34
  35 #define XLATE(src, srclowbit, outfield) ( \
  36         (((src) >> (srclowbit)) << (0 ? outfield)) & MASK(outfield))
  37
  38 void NVWriteVgaSeq(struct drm_device *, int head, uint8_t index, uint8_t value);
  39 uint8_t NVReadVgaSeq(struct drm_device *, int head, uint8_t index);
  40 void NVWriteVgaGr(struct drm_device *, int head, uint8_t index, uint8_t value);
  41 uint8_t NVReadVgaGr(struct drm_device *, int head, uint8_t index);
  42 void NVSetOwner(struct drm_device *, int owner);
  43 void NVBlankScreen(struct drm_device *, int head, bool blank);
  44 int nouveau_hw_get_pllvals(struct drm_device *, enum nvbios_pll_type plltype,
  45                            struct nvkm_pll_vals *pllvals);
  46 int nouveau_hw_pllvals_to_clk(struct nvkm_pll_vals *pllvals);
  47 int nouveau_hw_get_clock(struct drm_device *, enum nvbios_pll_type plltype);
  48 void nouveau_hw_save_vga_fonts(struct drm_device *, bool save);
  49 void nouveau_hw_save_state(struct drm_device *, int head,
  50                            struct nv04_mode_state *state);
  51 void nouveau_hw_load_state(struct drm_device *, int head,
  52                            struct nv04_mode_state *state);
  53 void nouveau_hw_load_state_palette(struct drm_device *, int head,
  54                                    struct nv04_mode_state *state);
  55
  56 /* nouveau_calc.c */
  57 extern void nouveau_calc_arb(struct drm_device *, int vclk, int bpp,
  58                              int *burst, int *lwm);
  59
  60 static inline uint32_t NVReadCRTC(struct drm_device *dev,
  61                                         int head, uint32_t reg)
  62 {
  63         struct nvif_device *device = &nouveau_drm(dev)->device;
  64         uint32_t val;
  65         if (head)
  66                 reg += NV_PCRTC0_SIZE;
  67         val = nvif_rd32(device, reg);
  68         return val;
  69 }
  70
  71 static inline void NVWriteCRTC(struct drm_device *dev,
  72                                         int head, uint32_t reg, uint32_t val)
  73 {
  74         struct nvif_device *device = &nouveau_drm(dev)->device;
  75         if (head)
  76                 reg += NV_PCRTC0_SIZE;
  77         nvif_wr32(device, reg, val);
  78 }
  79
  80 static inline uint32_t NVReadRAMDAC(struct drm_device *dev,
  81                                         int head, uint32_t reg)
  82 {
  83         struct nvif_device *device = &nouveau_drm(dev)->device;
  84         uint32_t val;
  85         if (head)
  86                 reg += NV_PRAMDAC0_SIZE;
  87         val = nvif_rd32(device, reg);
  88         return val;
  89 }
  90
  91 static inline void NVWriteRAMDAC(struct drm_device *dev,
  92                                         int head, uint32_t reg, uint32_t val)
  93 {
  94         struct nvif_device *device = &nouveau_drm(dev)->device;
  95         if (head)
  96                 reg += NV_PRAMDAC0_SIZE;
  97         nvif_wr32(device, reg, val);
  98 }
  99
 100 static inline uint8_t nv_read_tmds(struct drm_device *dev,
 101                                         int or, int dl, uint8_t address)
 102 {
 103         int ramdac = (or & DCB_OUTPUT_C) >> 2;
 104
 105         NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8,
 106         NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE | address);
 107         return NVReadRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8);
 108 }
 109
 110 static inline void nv_write_tmds(struct drm_device *dev,
 111                                         int or, int dl, uint8_t address,
 112                                         uint8_t data)
 113 {
 114         int ramdac = (or & DCB_OUTPUT_C) >> 2;
 115
 116         NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8, data);
 117         NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8, address);
 118 }
 119
 120 static inline void NVWriteVgaCrtc(struct drm_device *dev,
 121                                         int head, uint8_t index, uint8_t value)
 122 {
 123         struct nvif_device *device = &nouveau_drm(dev)->device;
 124         nvif_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
 125         nvif_wr08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE, value);
 126 }
 127
 128 static inline uint8_t NVReadVgaCrtc(struct drm_device *dev,
 129                                         int head, uint8_t index)
 130 {
 131         struct nvif_device *device = &nouveau_drm(dev)->device;
 132         uint8_t val;
 133         nvif_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
 134         val = nvif_rd08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE);
 135         return val;
 136 }
 137
 138 /* CR57 and CR58 are a fun pair of regs. CR57 provides an index (0-0xf) for CR58
 139  * I suspect they in fact do nothing, but are merely a way to carry useful
 140  * per-head variables around
 141  *
 142  * Known uses:
 143  * CR57         CR58
 144  * 0x00         index to the appropriate dcb entry (or 7f for inactive)
 145  * 0x02         dcb entry's "or" value (or 00 for inactive)
 146  * 0x03         bit0 set for dual link (LVDS, possibly elsewhere too)
 147  * 0x08 or 0x09 pxclk in MHz
 148  * 0x0f         laptop panel info -     low nibble for PEXTDEV_BOOT_0 strap
 149  *                                      high nibble for xlat strap value
 150  */
 151
 152 static inline void
 153 NVWriteVgaCrtc5758(struct drm_device *dev, int head, uint8_t index, uint8_t value)
 154 {
 155         NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
 156         NVWriteVgaCrtc(dev, head, NV_CIO_CRE_58, value);
 157 }
 158
 159 static inline uint8_t NVReadVgaCrtc5758(struct drm_device *dev, int head, uint8_t index)
 160 {
 161         NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
 162         return NVReadVgaCrtc(dev, head, NV_CIO_CRE_58);
 163 }
 164
 165 static inline uint8_t NVReadPRMVIO(struct drm_device *dev,
 166                                         int head, uint32_t reg)
 167 {
 168         struct nvif_device *device = &nouveau_drm(dev)->device;
 169         struct nouveau_drm *drm = nouveau_drm(dev);
 170         uint8_t val;
 171
 172         /* Only NV4x have two pvio ranges; other twoHeads cards MUST call
 173          * NVSetOwner for the relevant head to be programmed */
 174         if (head && drm->device.info.family == NV_DEVICE_INFO_V0_CURIE)
 175                 reg += NV_PRMVIO_SIZE;
 176
 177         val = nvif_rd08(device, reg);
 178         return val;
 179 }
 180
 181 static inline void NVWritePRMVIO(struct drm_device *dev,
 182                                         int head, uint32_t reg, uint8_t value)
 183 {
 184         struct nvif_device *device = &nouveau_drm(dev)->device;
 185         struct nouveau_drm *drm = nouveau_drm(dev);
 186
 187         /* Only NV4x have two pvio ranges; other twoHeads cards MUST call
 188          * NVSetOwner for the relevant head to be programmed */
 189         if (head && drm->device.info.family == NV_DEVICE_INFO_V0_CURIE)
 190                 reg += NV_PRMVIO_SIZE;
 191
 192         nvif_wr08(device, reg, value);
 193 }
 194
 195 static inline void NVSetEnablePalette(struct drm_device *dev, int head, bool enable)
 196 {
 197         struct nvif_device *device = &nouveau_drm(dev)->device;
 198         nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 199         nvif_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, enable ? 0 : 0x20);
 200 }
 201
 202 static inline bool NVGetEnablePalette(struct drm_device *dev, int head)
 203 {
 204         struct nvif_device *device = &nouveau_drm(dev)->device;
 205         nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 206         return !(nvif_rd08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE) & 0x20);
 207 }
 208
 209 static inline void NVWriteVgaAttr(struct drm_device *dev,
 210                                         int head, uint8_t index, uint8_t value)
 211 {
 212         struct nvif_device *device = &nouveau_drm(dev)->device;
 213         if (NVGetEnablePalette(dev, head))
 214                 index &= ~0x20;
 215         else
 216                 index |= 0x20;
 217
 218         nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 219         nvif_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
 220         nvif_wr08(device, NV_PRMCIO_AR__WRITE + head * NV_PRMCIO_SIZE, value);
 221 }
 222
 223 static inline uint8_t NVReadVgaAttr(struct drm_device *dev,
 224                                         int head, uint8_t index)
 225 {
 226         struct nvif_device *device = &nouveau_drm(dev)->device;
 227         uint8_t val;
 228         if (NVGetEnablePalette(dev, head))
 229                 index &= ~0x20;
 230         else
 231                 index |= 0x20;
 232
 233         nvif_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
 234         nvif_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
 235         val = nvif_rd08(device, NV_PRMCIO_AR__READ + head * NV_PRMCIO_SIZE);
 236         return val;
 237 }
 238
 239 static inline void NVVgaSeqReset(struct drm_device *dev, int head, bool start)
 240 {
 241         NVWriteVgaSeq(dev, head, NV_VIO_SR_RESET_INDEX, start ? 0x1 : 0x3);
 242 }
 243
 244 static inline void NVVgaProtect(struct drm_device *dev, int head, bool protect)
 245 {
 246         uint8_t seq1 = NVReadVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX);
 247
 248         if (protect) {
 249                 NVVgaSeqReset(dev, head, true);
 250                 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 | 0x20);
 251         } else {
 252                 /* Reenable sequencer, then turn on screen */
 253                 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 & ~0x20);   /* reenable display */
 254                 NVVgaSeqReset(dev, head, false);
 255         }
 256         NVSetEnablePalette(dev, head, protect);
 257 }
 258
 259 static inline bool
 260 nv_heads_tied(struct drm_device *dev)
 261 {
 262         struct nvif_device *device = &nouveau_drm(dev)->device;
 263         struct nouveau_drm *drm = nouveau_drm(dev);
 264
 265         if (drm->device.info.chipset == 0x11)
 266                 return !!(nvif_rd32(device, NV_PBUS_DEBUG_1) & (1 << 28));
 267
 268         return NVReadVgaCrtc(dev, 0, NV_CIO_CRE_44) & 0x4;
 269 }
 270
 271 /* makes cr0-7 on the specified head read-only */
 272 static inline bool
 273 nv_lock_vga_crtc_base(struct drm_device *dev, int head, bool lock)
 274 {
 275         uint8_t cr11 = NVReadVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX);
 276         bool waslocked = cr11 & 0x80;
 277
 278         if (lock)
 279                 cr11 |= 0x80;
 280         else
 281                 cr11 &= ~0x80;
 282         NVWriteVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX, cr11);
 283
 284         return waslocked;
 285 }
 286
 287 static inline void
 288 nv_lock_vga_crtc_shadow(struct drm_device *dev, int head, int lock)
 289 {
 290         /* shadow lock: connects 0x60?3d? regs to "real" 0x3d? regs
 291          * bit7: unlocks HDT, HBS, HBE, HRS, HRE, HEB
 292          * bit6: seems to have some effect on CR09 (double scan, VBS_9)
 293          * bit5: unlocks HDE
 294          * bit4: unlocks VDE
 295          * bit3: unlocks VDT, OVL, VRS, ?VRE?, VBS, VBE, LSR, EBR
 296          * bit2: same as bit 1 of 0x60?804
 297          * bit0: same as bit 0 of 0x60?804
 298          */
 299
 300         uint8_t cr21 = lock;
 301
 302         if (lock < 0)
 303                 /* 0xfa is generic "unlock all" mask */
 304                 cr21 = NVReadVgaCrtc(dev, head, NV_CIO_CRE_21) | 0xfa;
 305
 306         NVWriteVgaCrtc(dev, head, NV_CIO_CRE_21, cr21);
 307 }
 308
 309 /* renders the extended crtc regs (cr19+) on all crtcs impervious:
 310  * immutable and unreadable
 311  */
 312 static inline bool
 313 NVLockVgaCrtcs(struct drm_device *dev, bool lock)
 314 {
 315         struct nouveau_drm *drm = nouveau_drm(dev);
 316         bool waslocked = !NVReadVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX);
 317
 318         NVWriteVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX,
 319                        lock ? NV_CIO_SR_LOCK_VALUE : NV_CIO_SR_UNLOCK_RW_VALUE);
 320         /* NV11 has independently lockable extended crtcs, except when tied */
 321         if (drm->device.info.chipset == 0x11 && !nv_heads_tied(dev))
 322                 NVWriteVgaCrtc(dev, 1, NV_CIO_SR_LOCK_INDEX,
 323                                lock ? NV_CIO_SR_LOCK_VALUE :
 324                                       NV_CIO_SR_UNLOCK_RW_VALUE);
 325
 326         return waslocked;
 327 }
 328
 329 /* nv04 cursor max dimensions of 32x32 (A1R5G5B5) */
 330 #define NV04_CURSOR_SIZE 32
 331 /* limit nv10 cursors to 64x64 (ARGB8) (we could go to 64x255) */
 332 #define NV10_CURSOR_SIZE 64
 333
 334 static inline int nv_cursor_width(struct drm_device *dev)
 335 {
 336         struct nouveau_drm *drm = nouveau_drm(dev);
 337
 338         return drm->device.info.family >= NV_DEVICE_INFO_V0_CELSIUS ? NV10_CURSOR_SIZE : NV04_CURSOR_SIZE;
 339 }
 340
 341 static inline void
 342 nv_fix_nv40_hw_cursor(struct drm_device *dev, int head)
 343 {
 344         /* on some nv40 (such as the "true" (in the NV_PFB_BOOT_0 sense) nv40,
 345          * the gf6800gt) a hardware bug requires a write to PRAMDAC_CURSOR_POS
 346          * for changes to the CRTC CURCTL regs to take effect, whether changing
 347          * the pixmap location, or just showing/hiding the cursor
 348          */
 349         uint32_t curpos = NVReadRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS);
 350         NVWriteRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS, curpos);
 351 }
 352
 353 static inline void
 354 nv_set_crtc_base(struct drm_device *dev, int head, uint32_t offset)
 355 {
 356         struct nouveau_drm *drm = nouveau_drm(dev);
 357
 358         NVWriteCRTC(dev, head, NV_PCRTC_START, offset);
 359
 360         if (drm->device.info.family == NV_DEVICE_INFO_V0_TNT) {
 361                 /*
 362                  * Hilarious, the 24th bit doesn't want to stick to
 363                  * PCRTC_START...
 364                  */
 365                 int cre_heb = NVReadVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX);
 366
 367                 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX,
 368                                (cre_heb & ~0x40) | ((offset >> 18) & 0x40));
 369         }
 370 }
 371
 372 static inline void
 373 nv_show_cursor(struct drm_device *dev, int head, bool show)
 374 {
 375         struct nouveau_drm *drm = nouveau_drm(dev);
 376         uint8_t *curctl1 =
 377                 &nv04_display(dev)->mode_reg.crtc_reg[head].CRTC[NV_CIO_CRE_HCUR_ADDR1_INDEX];
 378
 379         if (show)
 380                 *curctl1 |= MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
 381         else
 382                 *curctl1 &= ~MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
 383         NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HCUR_ADDR1_INDEX, *curctl1);
 384
 385         if (drm->device.info.family == NV_DEVICE_INFO_V0_CURIE)
 386                 nv_fix_nv40_hw_cursor(dev, head);
 387 }
 388
 389 static inline uint32_t
 390 nv_pitch_align(struct drm_device *dev, uint32_t width, int bpp)
 391 {
 392         struct nouveau_drm *drm = nouveau_drm(dev);
 393         int mask;
 394
 395         if (bpp == 15)
 396                 bpp = 16;
 397         if (bpp == 24)
 398                 bpp = 8;
 399
 400         /* Alignment requirements taken from the Haiku driver */
 401         if (drm->device.info.family == NV_DEVICE_INFO_V0_TNT)
 402                 mask = 128 / bpp - 1;
 403         else
 404                 mask = 512 / bpp - 1;
 405
 406         return (width + mask) & ~mask;
 407 }
 408
 409 #endif  /* __NOUVEAU_HW_H__ */