5da7730d32
control register and AGP bridge seems to be inconsistent with some BIOS. Instead of relying on BIOS settings, we just take the initial aperture size and encode them for both miscellaneous control register and AGP bridge. Some idea was borrowed from agp_nvidia.c. - Add preliminary ULi M1689 chipset support. The idea was taken from Linux because hardware and documentation are unavailable. Not tested. - Add more VIA chipset PCI IDs taken from Linux driver. Approved by: anholt (mentor) Tested by: Adam Gregoire <ebola at psychoholics dot org> Ganael Laplanche <ganael.laplanche at martymac dot com> K Wieland <kwieland at wustl dot edu>
465 lines
12 KiB
C
465 lines
12 KiB
C
/*-
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* Copyright (c) 2004, 2005 Jung-uk Kim <jkim@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_bus.h"
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h>
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#include <sys/module.h>
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#include <sys/bus.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/proc.h>
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#include <dev/pci/pcivar.h>
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#include <dev/pci/pcireg.h>
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#include <pci/agppriv.h>
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#include <pci/agpreg.h>
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#include <vm/vm.h>
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#include <vm/vm_object.h>
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#include <vm/pmap.h>
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#include <machine/bus.h>
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#include <machine/resource.h>
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#include <sys/rman.h>
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/* XXX */
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extern void pci_cfgregwrite(int, int, int, int, uint32_t, int);
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extern uint32_t pci_cfgregread(int, int, int, int, int);
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static void agp_amd64_apbase_fixup(device_t);
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static void agp_amd64_uli_init(device_t);
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static int agp_amd64_uli_set_aperture(device_t, uint32_t);
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static int agp_amd64_nvidia_match(uint16_t);
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static void agp_amd64_nvidia_init(device_t);
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static int agp_amd64_nvidia_set_aperture(device_t, uint32_t);
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MALLOC_DECLARE(M_AGP);
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#define AMD64_MAX_MCTRL 8
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struct agp_amd64_softc {
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struct agp_softc agp;
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uint32_t initial_aperture;
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struct agp_gatt *gatt;
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uint32_t apbase;
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int mctrl[AMD64_MAX_MCTRL];
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int n_mctrl;
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};
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static const char*
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agp_amd64_match(device_t dev)
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{
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if (pci_get_class(dev) != PCIC_BRIDGE
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|| pci_get_subclass(dev) != PCIS_BRIDGE_HOST)
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return NULL;
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if (agp_find_caps(dev) == 0)
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return NULL;
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switch (pci_get_devid(dev)) {
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case 0x74541022:
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return ("AMD 8151 AGP graphics tunnel");
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case 0x07551039:
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return ("SiS 755 host to AGP bridge");
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case 0x168910b9:
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return ("ULi M1689 AGP Controller");
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case 0x00d110de:
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if (agp_amd64_nvidia_match(0x00d2))
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return NULL;
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return ("NVIDIA nForce3 AGP Controller");
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case 0x00e110de:
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if (agp_amd64_nvidia_match(0x00e2))
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return NULL;
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return ("NVIDIA nForce3-250 AGP Controller");
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case 0x02041106:
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return ("VIA 8380 host to PCI bridge");
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case 0x02381106:
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return ("VIA 3238 host to PCI bridge");
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case 0x02821106:
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return ("VIA K8T800Pro host to PCI bridge");
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case 0x31881106:
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return ("VIA 8385 host to PCI bridge");
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case 0xb1881106:
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return ("VIA 838X host to PCI bridge");
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};
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return NULL;
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}
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static int
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agp_amd64_nvidia_match(uint16_t devid)
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{
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/* XXX nForce3 requires secondary AGP bridge at 0:11:0. */
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if (pci_cfgregread(0, 11, 0, PCIR_CLASS, 1) != PCIC_BRIDGE ||
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pci_cfgregread(0, 11, 0, PCIR_SUBCLASS, 1) != PCIS_BRIDGE_PCI ||
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pci_cfgregread(0, 11, 0, PCIR_VENDOR, 2) != 0x10de ||
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pci_cfgregread(0, 11, 0, PCIR_DEVICE, 2) != devid)
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return ENXIO;
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return 0;
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}
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static int
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agp_amd64_probe(device_t dev)
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{
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const char *desc;
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if (resource_disabled("agp", device_get_unit(dev)))
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return ENXIO;
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if ((desc = agp_amd64_match(dev))) {
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device_verbose(dev);
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device_set_desc(dev, desc);
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return BUS_PROBE_DEFAULT;
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}
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return ENXIO;
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}
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static int
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agp_amd64_attach(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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struct agp_gatt *gatt;
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int i, n, error;
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for (i = 0, n = 0; i < PCI_SLOTMAX && n < AMD64_MAX_MCTRL; i++)
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if (pci_cfgregread(0, i, 3, 0, 4) == 0x11031022) {
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sc->mctrl[n] = i;
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n++;
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}
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if (n == 0)
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return ENXIO;
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sc->n_mctrl = n;
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if (bootverbose) {
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device_printf(dev, "%d Miscellaneous Control unit(s) found.\n",
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sc->n_mctrl);
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for (i = 0; i < sc->n_mctrl; i++)
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device_printf(dev, "Aperture Base[%d]: 0x%08x\n", i,
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pci_cfgregread(0, sc->mctrl[i], 3,
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AGP_AMD64_APBASE, 4) & AGP_AMD64_APBASE_MASK);
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}
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if ((error = agp_generic_attach(dev)))
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return error;
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sc->initial_aperture = AGP_GET_APERTURE(dev);
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switch (pci_get_vendor(dev)) {
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case 0x10b9: /* ULi */
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agp_amd64_uli_init(dev);
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if (agp_amd64_uli_set_aperture(dev, sc->initial_aperture))
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return ENXIO;
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break;
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case 0x10de: /* nVidia */
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agp_amd64_nvidia_init(dev);
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if (agp_amd64_nvidia_set_aperture(dev, sc->initial_aperture))
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return ENXIO;
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break;
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}
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for (;;) {
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gatt = agp_alloc_gatt(dev);
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if (gatt)
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break;
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/*
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* Probably contigmalloc failure. Try reducing the
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* aperture so that the gatt size reduces.
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*/
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if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) {
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agp_generic_detach(dev);
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return ENOMEM;
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}
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}
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sc->gatt = gatt;
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/* Install the gatt and enable aperture. */
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for (i = 0; i < sc->n_mctrl; i++) {
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pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_ATTBASE,
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(uint32_t)(gatt->ag_physical >> 8) & AGP_AMD64_ATTBASE_MASK,
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4);
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pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL,
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(pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) |
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AGP_AMD64_APCTRL_GARTEN) &
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~(AGP_AMD64_APCTRL_DISGARTCPU | AGP_AMD64_APCTRL_DISGARTIO),
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4);
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}
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agp_flush_cache();
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return 0;
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}
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static int
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agp_amd64_detach(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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int i, error;
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if ((error = agp_generic_detach(dev)))
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return error;
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for (i = 0; i < sc->n_mctrl; i++)
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pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL,
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pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_APCTRL, 4) &
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~AGP_AMD64_APCTRL_GARTEN, 4);
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AGP_SET_APERTURE(dev, sc->initial_aperture);
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agp_free_gatt(sc->gatt);
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return 0;
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}
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static uint32_t agp_amd64_table[] = {
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0x02000000, /* 32 MB */
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0x04000000, /* 64 MB */
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0x08000000, /* 128 MB */
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0x10000000, /* 256 MB */
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0x20000000, /* 512 MB */
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0x40000000, /* 1024 MB */
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0x80000000, /* 2048 MB */
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};
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#define AGP_AMD64_TABLE_SIZE \
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(sizeof(agp_amd64_table) / sizeof(agp_amd64_table[0]))
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static uint32_t
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agp_amd64_get_aperture(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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uint32_t i;
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i = (pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APCTRL, 4) &
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AGP_AMD64_APCTRL_SIZE_MASK) >> 1;
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if (i >= AGP_AMD64_TABLE_SIZE)
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return 0;
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return (agp_amd64_table[i]);
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}
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static int
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agp_amd64_set_aperture(device_t dev, uint32_t aperture)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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uint32_t i;
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int j;
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for (i = 0; i < AGP_AMD64_TABLE_SIZE; i++)
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if (agp_amd64_table[i] == aperture)
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break;
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if (i >= AGP_AMD64_TABLE_SIZE)
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return EINVAL;
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for (j = 0; j < sc->n_mctrl; j++)
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pci_cfgregwrite(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL,
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(pci_cfgregread(0, sc->mctrl[j], 3, AGP_AMD64_APCTRL, 4) &
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~(AGP_AMD64_APCTRL_SIZE_MASK)) | (i << 1), 4);
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switch (pci_get_vendor(dev)) {
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case 0x10b9: /* ULi */
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return (agp_amd64_uli_set_aperture(dev, aperture));
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break;
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case 0x10de: /* nVidia */
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return (agp_amd64_nvidia_set_aperture(dev, aperture));
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break;
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}
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return 0;
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}
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static int
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agp_amd64_bind_page(device_t dev, int offset, vm_offset_t physical)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
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return EINVAL;
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sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical;
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return 0;
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}
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static int
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agp_amd64_unbind_page(device_t dev, int offset)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT))
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return EINVAL;
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sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0;
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return 0;
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}
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static void
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agp_amd64_flush_tlb(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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int i;
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for (i = 0; i < sc->n_mctrl; i++)
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pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL,
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pci_cfgregread(0, sc->mctrl[i], 3, AGP_AMD64_CACHECTRL, 4) |
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AGP_AMD64_CACHECTRL_INVGART, 4);
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}
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static void
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agp_amd64_apbase_fixup(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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uint32_t apbase;
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int i;
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apbase = pci_cfgregread(0, sc->mctrl[0], 3, AGP_AMD64_APBASE, 4);
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for (i = 0; i < sc->n_mctrl; i++)
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pci_cfgregwrite(0, sc->mctrl[i], 3, AGP_AMD64_APBASE,
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apbase & ~(AGP_AMD64_APBASE_MASK & ~(uint32_t)0x7f), 4);
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sc->apbase = apbase << 25;
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}
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static void
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agp_amd64_uli_init(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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agp_amd64_apbase_fixup(dev);
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pci_write_config(dev, AGP_AMD64_ULI_APBASE,
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(pci_read_config(dev, AGP_AMD64_ULI_APBASE, 4) & 0x0000000f) |
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sc->apbase, 4);
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pci_write_config(dev, AGP_AMD64_ULI_HTT_FEATURE, sc->apbase, 4);
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}
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static int
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agp_amd64_uli_set_aperture(device_t dev, uint32_t aperture)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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switch (aperture) {
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case 0x02000000: /* 32 MB */
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case 0x04000000: /* 64 MB */
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case 0x08000000: /* 128 MB */
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case 0x10000000: /* 256 MB */
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break;
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default:
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return EINVAL;
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}
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pci_write_config(dev, AGP_AMD64_ULI_ENU_SCR,
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sc->apbase + aperture - 1, 4);
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return 0;
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}
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static void
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agp_amd64_nvidia_init(device_t dev)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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agp_amd64_apbase_fixup(dev);
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pci_write_config(dev, AGP_AMD64_NVIDIA_0_APBASE,
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(pci_read_config(dev, AGP_AMD64_NVIDIA_0_APBASE, 4) & 0x0000000f) |
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sc->apbase, 4);
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pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE1, sc->apbase, 4);
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pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APBASE2, sc->apbase, 4);
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}
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static int
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agp_amd64_nvidia_set_aperture(device_t dev, uint32_t aperture)
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{
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struct agp_amd64_softc *sc = device_get_softc(dev);
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uint32_t apsize;
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switch (aperture) {
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case 0x02000000: apsize = 0x0f; break; /* 32 MB */
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case 0x04000000: apsize = 0x0e; break; /* 64 MB */
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case 0x08000000: apsize = 0x0c; break; /* 128 MB */
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case 0x10000000: apsize = 0x08; break; /* 256 MB */
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case 0x20000000: apsize = 0x00; break; /* 512 MB */
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default:
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return EINVAL;
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}
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pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE,
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(pci_cfgregread(0, 11, 0, AGP_AMD64_NVIDIA_1_APSIZE, 4) &
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0xfffffff0) | apsize, 4);
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pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT1,
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sc->apbase + aperture - 1, 4);
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pci_cfgregwrite(0, 11, 0, AGP_AMD64_NVIDIA_1_APLIMIT2,
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sc->apbase + aperture - 1, 4);
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return 0;
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}
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static device_method_t agp_amd64_methods[] = {
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/* Device interface */
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DEVMETHOD(device_probe, agp_amd64_probe),
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DEVMETHOD(device_attach, agp_amd64_attach),
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DEVMETHOD(device_detach, agp_amd64_detach),
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DEVMETHOD(device_shutdown, bus_generic_shutdown),
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DEVMETHOD(device_suspend, bus_generic_suspend),
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DEVMETHOD(device_resume, bus_generic_resume),
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/* AGP interface */
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DEVMETHOD(agp_get_aperture, agp_amd64_get_aperture),
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DEVMETHOD(agp_set_aperture, agp_amd64_set_aperture),
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DEVMETHOD(agp_bind_page, agp_amd64_bind_page),
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DEVMETHOD(agp_unbind_page, agp_amd64_unbind_page),
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DEVMETHOD(agp_flush_tlb, agp_amd64_flush_tlb),
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DEVMETHOD(agp_enable, agp_generic_enable),
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DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory),
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DEVMETHOD(agp_free_memory, agp_generic_free_memory),
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DEVMETHOD(agp_bind_memory, agp_generic_bind_memory),
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DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory),
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{ 0, 0 }
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};
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static driver_t agp_amd64_driver = {
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"agp",
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agp_amd64_methods,
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sizeof(struct agp_amd64_softc),
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};
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static devclass_t agp_devclass;
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DRIVER_MODULE(agp_amd64, pci, agp_amd64_driver, agp_devclass, 0, 0);
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MODULE_DEPEND(agp_amd64, agp, 1, 1, 1);
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MODULE_DEPEND(agp_amd64, pci, 1, 1, 1);
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