static void
setPLL_double_lowregs(struct drm_device *dev, uint32_t NMNMreg,
struct nouveau_pll_vals *pv)
{
/* When setting PLLs, there is a merry game of disabling and enabling
* various bits of hardware during the process. This function is a
* synthesis of six nv4x traces, nearly each card doing a subtly
* different thing. With luck all the necessary bits for each card are
* combined herein. Without luck it deviates from each card's formula
* so as to not work on any :)
*/
uint32_t Preg = NMNMreg - 4;
bool mpll = Preg == 0x4020;
uint32_t oldPval = nvReadMC(dev, Preg);
uint32_t NMNM = pv->NM2 << 16 | pv->NM1;
<<<<<<< HEAD
static void
setPLL_single(struct drm_device *dev, uint32_t reg, struct nouveau_pll_vals *pv)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
int chip_version = dev_priv->vbios.chip_version;
uint32_t oldpll = NVReadRAMDAC(dev, 0, reg);
int oldN = (oldpll >> 8) & 0xff, oldM = oldpll & 0xff;
uint32_t pll = (oldpll & 0xfff80000) | pv->log2P << 16 | pv->NM1;
uint32_t saved_powerctrl_1 = 0;
int shift_powerctrl_1 = powerctrl_1_shift(chip_version, reg);
if (oldpll == pll)
return; /* already set */
if (shift_powerctrl_1 >= 0) {
saved_powerctrl_1 = nvReadMC(dev, NV_PBUS_POWERCTRL_1);
nvWriteMC(dev, NV_PBUS_POWERCTRL_1,
(saved_powerctrl_1 & ~(0xf << shift_powerctrl_1)) |
1 << shift_powerctrl_1);
}
if (oldM && pv->M1 && (oldN / oldM < pv->N1 / pv->M1))
/* upclock -- write new post divider first */
NVWriteRAMDAC(dev, 0, reg, pv->log2P << 16 | (oldpll & 0xffff));
else
/* downclock -- write new NM first */
NVWriteRAMDAC(dev, 0, reg, (oldpll & 0xffff0000) | pv->NM1);
if (chip_version < 0x17 && chip_version != 0x11)
/* wait a bit on older chips */
msleep(64);
NVReadRAMDAC(dev, 0, reg);
/* then write the other half as well */
NVWriteRAMDAC(dev, 0, reg, pll);
if (shift_powerctrl_1 >= 0)
nvWriteMC(dev, NV_PBUS_POWERCTRL_1, saved_powerctrl_1);
}
static void
setPLL_double_lowregs(struct drm_device *dev, uint32_t NMNMreg,
struct nouveau_pll_vals *pv)
{
/* When setting PLLs, there is a merry game of disabling and enabling
* various bits of hardware during the process. This function is a
* synthesis of six nv4x traces, nearly each card doing a subtly
* different thing. With luck all the necessary bits for each card are
* combined herein. Without luck it deviates from each card's formula
* so as to not work on any :)
*/
uint32_t Preg = NMNMreg - 4;
bool mpll = Preg == 0x4020;
uint32_t oldPval = nvReadMC(dev, Preg);
uint32_t NMNM = pv->NM2 << 16 | pv->NM1;
uint32_t Pval = (oldPval & (mpll ? ~(0x77 << 16) : ~(7 << 16))) |
0xc << 28 | pv->log2P << 16;
uint32_t saved4600 = 0;
/* some cards have different maskc040s */
uint32_t maskc040 = ~(3 << 14), savedc040;
bool single_stage = !pv->NM2 || pv->N2 == pv->M2;
if (nvReadMC(dev, NMNMreg) == NMNM && (oldPval & 0xc0070000) == Pval)
return;
if (Preg == 0x4000)
maskc040 = ~0x333;
if (Preg == 0x4058)
maskc040 = ~(0xc << 24);
if (mpll) {
struct pll_lims pll_lim;
uint8_t Pval2;
if (get_pll_limits(dev, Preg, &pll_lim))
return;
Pval2 = pv->log2P + pll_lim.log2p_bias;
if (Pval2 > pll_lim.max_log2p)
Pval2 = pll_lim.max_log2p;
Pval |= 1 << 28 | Pval2 << 20;
saved4600 = nvReadMC(dev, 0x4600);
nvWriteMC(dev, 0x4600, saved4600 | 8 << 28);
}
if (single_stage)
Pval |= mpll ? 1 << 12 : 1 << 8;
nvWriteMC(dev, Preg, oldPval | 1 << 28);
nvWriteMC(dev, Preg, Pval & ~(4 << 28));
if (mpll) {
Pval |= 8 << 20;
nvWriteMC(dev, 0x4020, Pval & ~(0xc << 28));
nvWriteMC(dev, 0x4038, Pval & ~(0xc << 28));
}
savedc040 = nvReadMC(dev, 0xc040);
nvWriteMC(dev, 0xc040, savedc040 & maskc040);
nvWriteMC(dev, NMNMreg, NMNM);
if (NMNMreg == 0x4024)
nvWriteMC(dev, 0x403c, NMNM);
nvWriteMC(dev, Preg, Pval);
if (mpll) {
Pval &= ~(8 << 20);
nvWriteMC(dev, 0x4020, Pval);
nvWriteMC(dev, 0x4038, Pval);
nvWriteMC(dev, 0x4600, saved4600);
}
nvWriteMC(dev, 0xc040, savedc040);
if (mpll) {
nvWriteMC(dev, 0x4020, Pval & ~(1 << 28));
nvWriteMC(dev, 0x4038, Pval & ~(1 << 28));
}
}
static void
setPLL_double_highregs(struct drm_device *dev, uint32_t reg1,
struct nouveau_pll_vals *pv)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
int chip_version = dev_priv->vbios.chip_version;
bool nv3035 = chip_version == 0x30 || chip_version == 0x35;
uint32_t reg2 = reg1 + ((reg1 == NV_RAMDAC_VPLL2) ? 0x5c : 0x70);
uint32_t oldpll1 = NVReadRAMDAC(dev, 0, reg1);
uint32_t oldpll2 = !nv3035 ? NVReadRAMDAC(dev, 0, reg2) : 0;
uint32_t pll1 = (oldpll1 & 0xfff80000) | pv->log2P << 16 | pv->NM1;
uint32_t pll2 = (oldpll2 & 0x7fff0000) | 1 << 31 | pv->NM2;
uint32_t oldramdac580 = 0, ramdac580 = 0;
bool single_stage = !pv->NM2 || pv->N2 == pv->M2; /* nv41+ only */
uint32_t saved_powerctrl_1 = 0, savedc040 = 0;
int shift_powerctrl_1 = powerctrl_1_shift(chip_version, reg1);
/* model specific additions to generic pll1 and pll2 set up above */
if (nv3035) {
pll1 = (pll1 & 0xfcc7ffff) | (pv->N2 & 0x18) << 21 |
(pv->N2 & 0x7) << 19 | 8 << 4 | (pv->M2 & 7) << 4;
pll2 = 0;
}
if (chip_version > 0x40 && reg1 >= NV_PRAMDAC_VPLL_COEFF) { /* !nv40 */
oldramdac580 = NVReadRAMDAC(dev, 0, NV_PRAMDAC_580);
ramdac580 = new_ramdac580(reg1, single_stage, oldramdac580);
if (oldramdac580 != ramdac580)
oldpll1 = ~0; /* force mismatch */
if (single_stage)
/* magic value used by nvidia in single stage mode */
pll2 |= 0x011f;
}
if (chip_version > 0x70)
/* magic bits set by the blob (but not the bios) on g71-73 */
pll1 = (pll1 & 0x7fffffff) | (single_stage ? 0x4 : 0xc) << 28;
if (oldpll1 == pll1 && oldpll2 == pll2)
return; /* already set */
if (shift_powerctrl_1 >= 0) {
saved_powerctrl_1 = nvReadMC(dev, NV_PBUS_POWERCTRL_1);
nvWriteMC(dev, NV_PBUS_POWERCTRL_1,
(saved_powerctrl_1 & ~(0xf << shift_powerctrl_1)) |
1 << shift_powerctrl_1);
}
if (chip_version >= 0x40) {
int shift_c040 = 14;
switch (reg1) {
case NV_PRAMDAC_MPLL_COEFF:
shift_c040 += 2;
case NV_PRAMDAC_NVPLL_COEFF:
shift_c040 += 2;
case NV_RAMDAC_VPLL2:
shift_c040 += 2;
case NV_PRAMDAC_VPLL_COEFF:
shift_c040 += 2;
}
savedc040 = nvReadMC(dev, 0xc040);
if (shift_c040 != 14)
nvWriteMC(dev, 0xc040, savedc040 & ~(3 << shift_c040));
}
if (oldramdac580 != ramdac580)
NVWriteRAMDAC(dev, 0, NV_PRAMDAC_580, ramdac580);
if (!nv3035)
NVWriteRAMDAC(dev, 0, reg2, pll2);
NVWriteRAMDAC(dev, 0, reg1, pll1);
if (shift_powerctrl_1 >= 0)
nvWriteMC(dev, NV_PBUS_POWERCTRL_1, saved_powerctrl_1);
if (chip_version >= 0x40)
nvWriteMC(dev, 0xc040, savedc040);
}
