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linux/drivers/gpu/drm/nouveau/nouveau_hw.h
Linus Torvalds 612a9aab56 Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 
Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...
2012-10-03 23:29:23 -07:00

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/*
* Copyright 2008 Stuart Bennett
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef __NOUVEAU_HW_H__
#define __NOUVEAU_HW_H__
#include <drm/drmP.h>
#include "nv04_display.h"
#include <subdev/bios/pll.h>
#define MASK(field) ( \
(0xffffffff >> (31 - ((1 ? field) - (0 ? field)))) << (0 ? field))
#define XLATE(src, srclowbit, outfield) ( \
(((src) >> (srclowbit)) << (0 ? outfield)) & MASK(outfield))
void NVWriteVgaSeq(struct drm_device *, int head, uint8_t index, uint8_t value);
uint8_t NVReadVgaSeq(struct drm_device *, int head, uint8_t index);
void NVWriteVgaGr(struct drm_device *, int head, uint8_t index, uint8_t value);
uint8_t NVReadVgaGr(struct drm_device *, int head, uint8_t index);
void NVSetOwner(struct drm_device *, int owner);
void NVBlankScreen(struct drm_device *, int head, bool blank);
int nouveau_hw_get_pllvals(struct drm_device *, enum nvbios_pll_type plltype,
struct nouveau_pll_vals *pllvals);
int nouveau_hw_pllvals_to_clk(struct nouveau_pll_vals *pllvals);
int nouveau_hw_get_clock(struct drm_device *, enum nvbios_pll_type plltype);
void nouveau_hw_save_vga_fonts(struct drm_device *, bool save);
void nouveau_hw_save_state(struct drm_device *, int head,
struct nv04_mode_state *state);
void nouveau_hw_load_state(struct drm_device *, int head,
struct nv04_mode_state *state);
void nouveau_hw_load_state_palette(struct drm_device *, int head,
struct nv04_mode_state *state);
/* nouveau_calc.c */
extern void nouveau_calc_arb(struct drm_device *, int vclk, int bpp,
int *burst, int *lwm);
static inline uint32_t NVReadCRTC(struct drm_device *dev,
int head, uint32_t reg)
{
struct nouveau_device *device = nouveau_dev(dev);
uint32_t val;
if (head)
reg += NV_PCRTC0_SIZE;
val = nv_rd32(device, reg);
return val;
}
static inline void NVWriteCRTC(struct drm_device *dev,
int head, uint32_t reg, uint32_t val)
{
struct nouveau_device *device = nouveau_dev(dev);
if (head)
reg += NV_PCRTC0_SIZE;
nv_wr32(device, reg, val);
}
static inline uint32_t NVReadRAMDAC(struct drm_device *dev,
int head, uint32_t reg)
{
struct nouveau_device *device = nouveau_dev(dev);
uint32_t val;
if (head)
reg += NV_PRAMDAC0_SIZE;
val = nv_rd32(device, reg);
return val;
}
static inline void NVWriteRAMDAC(struct drm_device *dev,
int head, uint32_t reg, uint32_t val)
{
struct nouveau_device *device = nouveau_dev(dev);
if (head)
reg += NV_PRAMDAC0_SIZE;
nv_wr32(device, reg, val);
}
static inline uint8_t nv_read_tmds(struct drm_device *dev,
int or, int dl, uint8_t address)
{
int ramdac = (or & DCB_OUTPUT_C) >> 2;
NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8,
NV_PRAMDAC_FP_TMDS_CONTROL_WRITE_DISABLE | address);
return NVReadRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8);
}
static inline void nv_write_tmds(struct drm_device *dev,
int or, int dl, uint8_t address,
uint8_t data)
{
int ramdac = (or & DCB_OUTPUT_C) >> 2;
NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_DATA + dl * 8, data);
NVWriteRAMDAC(dev, ramdac, NV_PRAMDAC_FP_TMDS_CONTROL + dl * 8, address);
}
static inline void NVWriteVgaCrtc(struct drm_device *dev,
int head, uint8_t index, uint8_t value)
{
struct nouveau_device *device = nouveau_dev(dev);
nv_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
nv_wr08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE, value);
}
static inline uint8_t NVReadVgaCrtc(struct drm_device *dev,
int head, uint8_t index)
{
struct nouveau_device *device = nouveau_dev(dev);
uint8_t val;
nv_wr08(device, NV_PRMCIO_CRX__COLOR + head * NV_PRMCIO_SIZE, index);
val = nv_rd08(device, NV_PRMCIO_CR__COLOR + head * NV_PRMCIO_SIZE);
return val;
}
/* CR57 and CR58 are a fun pair of regs. CR57 provides an index (0-0xf) for CR58
* I suspect they in fact do nothing, but are merely a way to carry useful
* per-head variables around
*
* Known uses:
* CR57 CR58
* 0x00 index to the appropriate dcb entry (or 7f for inactive)
* 0x02 dcb entry's "or" value (or 00 for inactive)
* 0x03 bit0 set for dual link (LVDS, possibly elsewhere too)
* 0x08 or 0x09 pxclk in MHz
* 0x0f laptop panel info - low nibble for PEXTDEV_BOOT_0 strap
* high nibble for xlat strap value
*/
static inline void
NVWriteVgaCrtc5758(struct drm_device *dev, int head, uint8_t index, uint8_t value)
{
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_58, value);
}
static inline uint8_t NVReadVgaCrtc5758(struct drm_device *dev, int head, uint8_t index)
{
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_57, index);
return NVReadVgaCrtc(dev, head, NV_CIO_CRE_58);
}
static inline uint8_t NVReadPRMVIO(struct drm_device *dev,
int head, uint32_t reg)
{
struct nouveau_device *device = nouveau_dev(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
uint8_t val;
/* Only NV4x have two pvio ranges; other twoHeads cards MUST call
* NVSetOwner for the relevant head to be programmed */
if (head && nv_device(drm->device)->card_type == NV_40)
reg += NV_PRMVIO_SIZE;
val = nv_rd08(device, reg);
return val;
}
static inline void NVWritePRMVIO(struct drm_device *dev,
int head, uint32_t reg, uint8_t value)
{
struct nouveau_device *device = nouveau_dev(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
/* Only NV4x have two pvio ranges; other twoHeads cards MUST call
* NVSetOwner for the relevant head to be programmed */
if (head && nv_device(drm->device)->card_type == NV_40)
reg += NV_PRMVIO_SIZE;
nv_wr08(device, reg, value);
}
static inline void NVSetEnablePalette(struct drm_device *dev, int head, bool enable)
{
struct nouveau_device *device = nouveau_dev(dev);
nv_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
nv_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, enable ? 0 : 0x20);
}
static inline bool NVGetEnablePalette(struct drm_device *dev, int head)
{
struct nouveau_device *device = nouveau_dev(dev);
nv_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
return !(nv_rd08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE) & 0x20);
}
static inline void NVWriteVgaAttr(struct drm_device *dev,
int head, uint8_t index, uint8_t value)
{
struct nouveau_device *device = nouveau_dev(dev);
if (NVGetEnablePalette(dev, head))
index &= ~0x20;
else
index |= 0x20;
nv_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
nv_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
nv_wr08(device, NV_PRMCIO_AR__WRITE + head * NV_PRMCIO_SIZE, value);
}
static inline uint8_t NVReadVgaAttr(struct drm_device *dev,
int head, uint8_t index)
{
struct nouveau_device *device = nouveau_dev(dev);
uint8_t val;
if (NVGetEnablePalette(dev, head))
index &= ~0x20;
else
index |= 0x20;
nv_rd08(device, NV_PRMCIO_INP0__COLOR + head * NV_PRMCIO_SIZE);
nv_wr08(device, NV_PRMCIO_ARX + head * NV_PRMCIO_SIZE, index);
val = nv_rd08(device, NV_PRMCIO_AR__READ + head * NV_PRMCIO_SIZE);
return val;
}
static inline void NVVgaSeqReset(struct drm_device *dev, int head, bool start)
{
NVWriteVgaSeq(dev, head, NV_VIO_SR_RESET_INDEX, start ? 0x1 : 0x3);
}
static inline void NVVgaProtect(struct drm_device *dev, int head, bool protect)
{
uint8_t seq1 = NVReadVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX);
if (protect) {
NVVgaSeqReset(dev, head, true);
NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 | 0x20);
} else {
/* Reenable sequencer, then turn on screen */
NVWriteVgaSeq(dev, head, NV_VIO_SR_CLOCK_INDEX, seq1 & ~0x20); /* reenable display */
NVVgaSeqReset(dev, head, false);
}
NVSetEnablePalette(dev, head, protect);
}
static inline bool
nv_heads_tied(struct drm_device *dev)
{
struct nouveau_device *device = nouveau_dev(dev);
struct nouveau_drm *drm = nouveau_drm(dev);
if (nv_device(drm->device)->chipset == 0x11)
return !!(nv_rd32(device, NV_PBUS_DEBUG_1) & (1 << 28));
return NVReadVgaCrtc(dev, 0, NV_CIO_CRE_44) & 0x4;
}
/* makes cr0-7 on the specified head read-only */
static inline bool
nv_lock_vga_crtc_base(struct drm_device *dev, int head, bool lock)
{
uint8_t cr11 = NVReadVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX);
bool waslocked = cr11 & 0x80;
if (lock)
cr11 |= 0x80;
else
cr11 &= ~0x80;
NVWriteVgaCrtc(dev, head, NV_CIO_CR_VRE_INDEX, cr11);
return waslocked;
}
static inline void
nv_lock_vga_crtc_shadow(struct drm_device *dev, int head, int lock)
{
/* shadow lock: connects 0x60?3d? regs to "real" 0x3d? regs
* bit7: unlocks HDT, HBS, HBE, HRS, HRE, HEB
* bit6: seems to have some effect on CR09 (double scan, VBS_9)
* bit5: unlocks HDE
* bit4: unlocks VDE
* bit3: unlocks VDT, OVL, VRS, ?VRE?, VBS, VBE, LSR, EBR
* bit2: same as bit 1 of 0x60?804
* bit0: same as bit 0 of 0x60?804
*/
uint8_t cr21 = lock;
if (lock < 0)
/* 0xfa is generic "unlock all" mask */
cr21 = NVReadVgaCrtc(dev, head, NV_CIO_CRE_21) | 0xfa;
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_21, cr21);
}
/* renders the extended crtc regs (cr19+) on all crtcs impervious:
* immutable and unreadable
*/
static inline bool
NVLockVgaCrtcs(struct drm_device *dev, bool lock)
{
struct nouveau_drm *drm = nouveau_drm(dev);
bool waslocked = !NVReadVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX);
NVWriteVgaCrtc(dev, 0, NV_CIO_SR_LOCK_INDEX,
lock ? NV_CIO_SR_LOCK_VALUE : NV_CIO_SR_UNLOCK_RW_VALUE);
/* NV11 has independently lockable extended crtcs, except when tied */
if (nv_device(drm->device)->chipset == 0x11 && !nv_heads_tied(dev))
NVWriteVgaCrtc(dev, 1, NV_CIO_SR_LOCK_INDEX,
lock ? NV_CIO_SR_LOCK_VALUE :
NV_CIO_SR_UNLOCK_RW_VALUE);
return waslocked;
}
/* nv04 cursor max dimensions of 32x32 (A1R5G5B5) */
#define NV04_CURSOR_SIZE 32
/* limit nv10 cursors to 64x64 (ARGB8) (we could go to 64x255) */
#define NV10_CURSOR_SIZE 64
static inline int nv_cursor_width(struct drm_device *dev)
{
struct nouveau_drm *drm = nouveau_drm(dev);
return nv_device(drm->device)->card_type >= NV_10 ? NV10_CURSOR_SIZE : NV04_CURSOR_SIZE;
}
static inline void
nv_fix_nv40_hw_cursor(struct drm_device *dev, int head)
{
/* on some nv40 (such as the "true" (in the NV_PFB_BOOT_0 sense) nv40,
* the gf6800gt) a hardware bug requires a write to PRAMDAC_CURSOR_POS
* for changes to the CRTC CURCTL regs to take effect, whether changing
* the pixmap location, or just showing/hiding the cursor
*/
uint32_t curpos = NVReadRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS);
NVWriteRAMDAC(dev, head, NV_PRAMDAC_CU_START_POS, curpos);
}
static inline void
nv_set_crtc_base(struct drm_device *dev, int head, uint32_t offset)
{
struct nouveau_drm *drm = nouveau_drm(dev);
NVWriteCRTC(dev, head, NV_PCRTC_START, offset);
if (nv_device(drm->device)->card_type == NV_04) {
/*
* Hilarious, the 24th bit doesn't want to stick to
* PCRTC_START...
*/
int cre_heb = NVReadVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX);
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HEB__INDEX,
(cre_heb & ~0x40) | ((offset >> 18) & 0x40));
}
}
static inline void
nv_show_cursor(struct drm_device *dev, int head, bool show)
{
struct nouveau_drm *drm = nouveau_drm(dev);
uint8_t *curctl1 =
&nv04_display(dev)->mode_reg.crtc_reg[head].CRTC[NV_CIO_CRE_HCUR_ADDR1_INDEX];
if (show)
*curctl1 |= MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
else
*curctl1 &= ~MASK(NV_CIO_CRE_HCUR_ADDR1_ENABLE);
NVWriteVgaCrtc(dev, head, NV_CIO_CRE_HCUR_ADDR1_INDEX, *curctl1);
if (nv_device(drm->device)->card_type == NV_40)
nv_fix_nv40_hw_cursor(dev, head);
}
static inline uint32_t
nv_pitch_align(struct drm_device *dev, uint32_t width, int bpp)
{
struct nouveau_drm *drm = nouveau_drm(dev);
int mask;
if (bpp == 15)
bpp = 16;
if (bpp == 24)
bpp = 8;
/* Alignment requirements taken from the Haiku driver */
if (nv_device(drm->device)->card_type == NV_04)
mask = 128 / bpp - 1;
else
mask = 512 / bpp - 1;
return (width + mask) & ~mask;
}
#endif /* __NOUVEAU_HW_H__ */
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