static void
rge_chip_peek_cfg(rge_t *rgep, rge_peekpoke_t *ppd)
{
uint64_t regval;
uint64_t regno;
RGE_TRACE(("rge_chip_peek_cfg($%p, $%p)",
(void *)rgep, (void *)ppd));
regno = ppd->pp_acc_offset;
switch (ppd->pp_acc_size) {
case 1:
regval = pci_config_get8(rgep->cfg_handle, regno);
break;
case 2:
regval = pci_config_get16(rgep->cfg_handle, regno);
break;
case 4:
regval = pci_config_get32(rgep->cfg_handle, regno);
break;
case 8:
regval = pci_config_get64(rgep->cfg_handle, regno);
break;
}
ppd->pp_acc_data = regval;
}
/*
* agp_target_get_aperbase()
*
* Description:
* This function gets the AGP aperture base address from the AGP target
* register, the AGP aperture base register was programmed by the BIOS.
*
* Arguments:
* softstate driver soft state pointer
*
* Returns:
* aper_base AGP aperture base address
*
* Notes:
* If a 64bit bridge device is available, the AGP aperture base address
* can be 64 bit.
*/
static uint64_t
agp_target_get_apbase(agp_target_softstate_t *softstate)
{
uint64_t aper_base;
if (!is_64bit_aper(softstate)) {
aper_base = pci_config_get32(softstate->tsoft_pcihdl,
AGP_CONF_APERBASE) & AGP_32_APERBASE_MASK;
} else {
aper_base = pci_config_get64(softstate->tsoft_pcihdl,
AGP_CONF_APERBASE);
/* 32-bit or 64-bit aperbase base pointer */
if ((aper_base & AGP_APER_TYPE_MASK) == 0)
aper_base &= AGP_32_APERBASE_MASK;
else
aper_base &= AGP_64_APERBASE_MASK;
}
return (aper_base);
}
