2 * Copyright 2008 Stuart Bennett
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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
23 #ifndef __NOUVEAU_HW_H__
24 #define __NOUVEAU_HW_H__
27 #include "nouveau_drv.h"
28 #include "nv04_display.h"
30 #include <subdev/bios/pll.h>
32 #define MASK(field) ( \
33 (0xffffffff >> (31 - ((1 ? field) - (0 ? field)))) << (0 ? field))
35 #define XLATE(src, srclowbit, outfield) ( \
36 (((src) >> (srclowbit)) << (0 ? outfield)) & MASK(outfield))
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 nouveau_pll_vals *pllvals);
46 int nouveau_hw_pllvals_to_clk(struct nouveau_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);
57 extern void nouveau_calc_arb(struct drm_device *, int vclk, int bpp,
58 int *burst, int *lwm);
60 static inline uint32_t NVReadCRTC(struct drm_device *dev,
61 int head, uint32_t reg)
65 reg += NV_PCRTC0_SIZE;
66 val = nv_rd32(dev, reg);
70 static inline void NVWriteCRTC(struct drm_device *dev,
71 int head, uint32_t reg, uint32_t val)
74 reg += NV_PCRTC0_SIZE;
75 nv_wr32(dev, reg, val);
78 static inline uint32_t NVReadRAMDAC(struct drm_device *dev,
79 int head, uint32_t reg)
83 reg += NV_PRAMDAC0_SIZE;
84 val = nv_rd32(dev, reg);
88 static inline void NVWriteRAMDAC(struct drm_device *dev,
89 int head, uint32_t reg, uint32_t val)
92 reg += NV_PRAMDAC0_SIZE;
93 nv_wr32(dev, reg, val);
96 static inline uint8_t nv_read_tmds(struct drm_device *dev,
97 int or, int dl, uint8_t address)
99 int ramdac = (or & DCB_OUTPUT_C) >> 2;
101 NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8,
102 NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE | address);
103 return NVReadRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8);
106 static inline void nv_write_tmds(struct drm_device *dev,
107 int or, int dl, uint8_t address,
110 int ramdac = (or & DCB_OUTPUT_C) >> 2;
112 NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8, data);
113 NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8, address);
116 static inline void NVWriteVgaCrtc(struct drm_device *dev,
117 int head, uint8_t index, uint8_t value)
119 nv_wr08(dev, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
120 nv_wr08(dev, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE, value);
123 static inline uint8_t NVReadVgaCrtc(struct drm_device *dev,
124 int head, uint8_t index)
127 nv_wr08(dev, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
128 val = nv_rd08(dev, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE);
132 /* CR57 and CR58 are a fun pair of regs. CR57 provides an index (0-0xf) for CR58
133 * I suspect they in fact do nothing, but are merely a way to carry useful
134 * per-head variables around
138 * 0x00 index to the appropriate dcb entry (or 7f for inactive)
139 * 0x02 dcb entry's "or" value (or 00 for inactive)
140 * 0x03 bit0 set for dual link (LVDS, possibly elsewhere too)
141 * 0x08 or 0x09 pxclk in MHz
142 * 0x0f laptop panel info - low nibble for PEXTDEV_BOOT_0 strap
143 * high nibble for xlat strap value
147 NVWriteVgaCrtc5758(struct drm_device *dev, int head, uint8_t index, uint8_t value)
149 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
150 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_58, value);
153 static inline uint8_t NVReadVgaCrtc5758(struct drm_device *dev, int head, uint8_t index)
155 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
156 return NVReadVgaCrtc(dev, head, NV_CIO_CRE_58);
159 static inline uint8_t NVReadPRMVIO(struct drm_device *dev,
160 int head, uint32_t reg)
162 struct drm_nouveau_private *dev_priv = dev->dev_private;
165 /* Only NV4x have two pvio ranges; other twoHeads cards MUST call
166 * NVSetOwner for the relevant head to be programmed */
167 if (head && dev_priv->card_type == NV_40)
168 reg += NV_PRMVIO_SIZE;
170 val = nv_rd08(dev, reg);
174 static inline void NVWritePRMVIO(struct drm_device *dev,
175 int head, uint32_t reg, uint8_t value)
177 struct drm_nouveau_private *dev_priv = dev->dev_private;
179 /* Only NV4x have two pvio ranges; other twoHeads cards MUST call
180 * NVSetOwner for the relevant head to be programmed */
181 if (head && dev_priv->card_type == NV_40)
182 reg += NV_PRMVIO_SIZE;
184 nv_wr08(dev, reg, value);
187 static inline void NVSetEnablePalette(struct drm_device *dev, int head, bool enable)
189 nv_rd08(dev, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
190 nv_wr08(dev, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, enable ? 0 : 0x20);
193 static inline bool NVGetEnablePalette(struct drm_device *dev, int head)
195 nv_rd08(dev, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
196 return !(nv_rd08(dev, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE) & 0x20);
199 static inline void NVWriteVgaAttr(struct drm_device *dev,
200 int head, uint8_t index, uint8_t value)
202 if (NVGetEnablePalette(dev, head))
207 nv_rd08(dev, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
208 nv_wr08(dev, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
209 nv_wr08(dev, NV_PRMCIO_AR__WRITE + head * NV_PRMCIO_SIZE, value);
212 static inline uint8_t NVReadVgaAttr(struct drm_device *dev,
213 int head, uint8_t index)
216 if (NVGetEnablePalette(dev, head))
221 nv_rd08(dev, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
222 nv_wr08(dev, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
223 val = nv_rd08(dev, NV_PRMCIO_AR__READ + head * NV_PRMCIO_SIZE);
227 static inline void NVVgaSeqReset(struct drm_device *dev, int head, bool start)
229 NVWriteVgaSeq(dev, head, NV_VIO_SR_RESET_INDEX, start ? 0x1 : 0x3);
232 static inline void NVVgaProtect(struct drm_device *dev, int head, bool protect)
234 uint8_t seq1 = NVReadVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX);
237 NVVgaSeqReset(dev, head, true);
238 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 | 0x20);
240 /* Reenable sequencer, then turn on screen */
241 NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 & ~0x20); /* reenable display */
242 NVVgaSeqReset(dev, head, false);
244 NVSetEnablePalette(dev, head, protect);
248 nv_heads_tied(struct drm_device *dev)
250 struct drm_nouveau_private *dev_priv = dev->dev_private;
252 if (dev_priv->chipset == 0x11)
253 return !!(nv_rd32(dev, NV_PBUS_DEBUG_1) & (1 << 28));
255 return NVReadVgaCrtc(dev, 0, NV_CIO_CRE_44) & 0x4;
258 /* makes cr0-7 on the specified head read-only */
260 nv_lock_vga_crtc_base(struct drm_device *dev, int head, bool lock)
262 uint8_t cr11 = NVReadVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX);
263 bool waslocked = cr11 & 0x80;
269 NVWriteVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX, cr11);
275 nv_lock_vga_crtc_shadow(struct drm_device *dev, int head, int lock)
277 /* shadow lock: connects 0x60?3d? regs to "real" 0x3d? regs
278 * bit7: unlocks HDT, HBS, HBE, HRS, HRE, HEB
279 * bit6: seems to have some effect on CR09 (double scan, VBS_9)
282 * bit3: unlocks VDT, OVL, VRS, ?VRE?, VBS, VBE, LSR, EBR
283 * bit2: same as bit 1 of 0x60?804
284 * bit0: same as bit 0 of 0x60?804
290 /* 0xfa is generic "unlock all" mask */
291 cr21 = NVReadVgaCrtc(dev, head, NV_CIO_CRE_21) | 0xfa;
293 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_21, cr21);
296 /* renders the extended crtc regs (cr19+) on all crtcs impervious:
297 * immutable and unreadable
300 NVLockVgaCrtcs(struct drm_device *dev, bool lock)
302 struct drm_nouveau_private *dev_priv = dev->dev_private;
303 bool waslocked = !NVReadVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX);
305 NVWriteVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX,
306 lock ? NV_CIO_SR_LOCK_VALUE : NV_CIO_SR_UNLOCK_RW_VALUE);
307 /* NV11 has independently lockable extended crtcs, except when tied */
308 if (dev_priv->chipset == 0x11 && !nv_heads_tied(dev))
309 NVWriteVgaCrtc(dev, 1, NV_CIO_SR_LOCK_INDEX,
310 lock ? NV_CIO_SR_LOCK_VALUE :
311 NV_CIO_SR_UNLOCK_RW_VALUE);
316 /* nv04 cursor max dimensions of 32x32 (A1R5G5B5) */
317 #define NV04_CURSOR_SIZE 32
318 /* limit nv10 cursors to 64x64 (ARGB8) (we could go to 64x255) */
319 #define NV10_CURSOR_SIZE 64
321 static inline int nv_cursor_width(struct drm_device *dev)
323 struct drm_nouveau_private *dev_priv = dev->dev_private;
325 return dev_priv->card_type >= NV_10 ? NV10_CURSOR_SIZE : NV04_CURSOR_SIZE;
329 nv_fix_nv40_hw_cursor(struct drm_device *dev, int head)
331 /* on some nv40 (such as the "true" (in the NV_PFB_BOOT_0 sense) nv40,
332 * the gf6800gt) a hardware bug requires a write to PRAMDAC_CURSOR_POS
333 * for changes to the CRTC CURCTL regs to take effect, whether changing
334 * the pixmap location, or just showing/hiding the cursor
336 uint32_t curpos = NVReadRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS);
337 NVWriteRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS, curpos);
341 nv_set_crtc_base(struct drm_device *dev, int head, uint32_t offset)
343 struct drm_nouveau_private *dev_priv = dev->dev_private;
345 NVWriteCRTC(dev, head, NV_PCRTC_START, offset);
347 if (dev_priv->card_type == NV_04) {
349 * Hilarious, the 24th bit doesn't want to stick to
352 int cre_heb = NVReadVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX);
354 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX,
355 (cre_heb & ~0x40) | ((offset >> 18) & 0x40));
360 nv_show_cursor(struct drm_device *dev, int head, bool show)
362 struct drm_nouveau_private *dev_priv = dev->dev_private;
364 &nv04_display(dev)->mode_reg.crtc_reg[head].CRTC[NV_CIO_CRE_HCUR_ADDR1_INDEX];
367 *curctl1 |= MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
369 *curctl1 &= ~MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
370 NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HCUR_ADDR1_INDEX, *curctl1);
372 if (dev_priv->card_type == NV_40)
373 nv_fix_nv40_hw_cursor(dev, head);
376 static inline uint32_t
377 nv_pitch_align(struct drm_device *dev, uint32_t width, int bpp)
379 struct drm_nouveau_private *dev_priv = dev->dev_private;
387 /* Alignment requirements taken from the Haiku driver */
388 if (dev_priv->card_type == NV_04)
389 mask = 128 / bpp - 1;
391 mask = 512 / bpp - 1;
393 return (width + mask) & ~mask;
396 #endif /* __NOUVEAU_HW_H__ */