diff options
Diffstat (limited to 'sys/pci/agp_ali.c')
| -rw-r--r-- | sys/pci/agp_ali.c | 273 |
1 files changed, 0 insertions, 273 deletions
diff --git a/sys/pci/agp_ali.c b/sys/pci/agp_ali.c deleted file mode 100644 index 74bd2b1..0000000 --- a/sys/pci/agp_ali.c +++ /dev/null @@ -1,273 +0,0 @@ -/*- - * Copyright (c) 2000 Doug Rabson - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include "opt_bus.h" - -#include <sys/param.h> -#include <sys/systm.h> -#include <sys/malloc.h> -#include <sys/kernel.h> -#include <sys/module.h> -#include <sys/bus.h> -#include <sys/lock.h> -#include <sys/mutex.h> -#include <sys/proc.h> - -#include <dev/pci/pcivar.h> -#include <dev/pci/pcireg.h> -#include <pci/agppriv.h> -#include <pci/agpreg.h> - -#include <vm/vm.h> -#include <vm/vm_object.h> -#include <vm/pmap.h> - -struct agp_ali_softc { - struct agp_softc agp; - u_int32_t initial_aperture; /* aperture size at startup */ - struct agp_gatt *gatt; -}; - -static const char* -agp_ali_match(device_t dev) -{ - if (pci_get_class(dev) != PCIC_BRIDGE - || pci_get_subclass(dev) != PCIS_BRIDGE_HOST) - return NULL; - - if (agp_find_caps(dev) == 0) - return NULL; - - switch (pci_get_devid(dev)) { - case 0x167110b9: - return ("Ali M1671 host to AGP bridge"); - case 0x154110b9: - return ("Ali M1541 host to AGP bridge"); - case 0x162110b9: - return ("Ali M1621 host to AGP bridge"); - }; - - return NULL; -} - -static int -agp_ali_probe(device_t dev) -{ - const char *desc; - - if (resource_disabled("agp", device_get_unit(dev))) - return (ENXIO); - desc = agp_ali_match(dev); - if (desc) { - device_set_desc(dev, desc); - return BUS_PROBE_DEFAULT; - } - - return ENXIO; -} - -static int -agp_ali_attach(device_t dev) -{ - struct agp_ali_softc *sc = device_get_softc(dev); - struct agp_gatt *gatt; - int error; - u_int32_t attbase; - - error = agp_generic_attach(dev); - if (error) - return error; - - sc->initial_aperture = AGP_GET_APERTURE(dev); - if (sc->initial_aperture == 0) { - device_printf(dev, "bad initial aperture size, disabling\n"); - return ENXIO; - } - - for (;;) { - gatt = agp_alloc_gatt(dev); - if (gatt) - break; - - /* - * Probably contigmalloc failure. Try reducing the - * aperture so that the gatt size reduces. - */ - if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) { - agp_generic_detach(dev); - return ENOMEM; - } - } - sc->gatt = gatt; - - /* Install the gatt. */ - attbase = pci_read_config(dev, AGP_ALI_ATTBASE, 4); - pci_write_config(dev, AGP_ALI_ATTBASE, gatt->ag_physical | - (attbase & 0xfff), 4); - - /* Enable the TLB. */ - pci_write_config(dev, AGP_ALI_TLBCTRL, 0x10, 1); - - return 0; -} - -static int -agp_ali_detach(device_t dev) -{ - struct agp_ali_softc *sc = device_get_softc(dev); - u_int32_t attbase; - - agp_free_cdev(dev); - - /* Disable the TLB.. */ - pci_write_config(dev, AGP_ALI_TLBCTRL, 0x90, 1); - - /* Put the aperture back the way it started. */ - AGP_SET_APERTURE(dev, sc->initial_aperture); - attbase = pci_read_config(dev, AGP_ALI_ATTBASE, 4); - pci_write_config(dev, AGP_ALI_ATTBASE, attbase & 0xfff, 4); - - agp_free_gatt(sc->gatt); - agp_free_res(dev); - return 0; -} - -#define M 1024*1024 - -static u_int32_t agp_ali_table[] = { - 0, /* 0 - invalid */ - 1, /* 1 - invalid */ - 2, /* 2 - invalid */ - 4*M, /* 3 - invalid */ - 8*M, /* 4 - invalid */ - 0, /* 5 - invalid */ - 16*M, /* 6 - invalid */ - 32*M, /* 7 - invalid */ - 64*M, /* 8 - invalid */ - 128*M, /* 9 - invalid */ - 256*M, /* 10 - invalid */ -}; -#define agp_ali_table_size (sizeof(agp_ali_table) / sizeof(agp_ali_table[0])) - -static u_int32_t -agp_ali_get_aperture(device_t dev) -{ - /* - * The aperture size is derived from the low bits of attbase. - * I'm not sure this is correct.. - */ - int i = pci_read_config(dev, AGP_ALI_ATTBASE, 4) & 0xf; - if (i >= agp_ali_table_size) - return 0; - return agp_ali_table[i]; -} - -static int -agp_ali_set_aperture(device_t dev, u_int32_t aperture) -{ - int i; - u_int32_t attbase; - - for (i = 0; i < agp_ali_table_size; i++) - if (agp_ali_table[i] == aperture) - break; - if (i == agp_ali_table_size) - return EINVAL; - - attbase = pci_read_config(dev, AGP_ALI_ATTBASE, 4); - pci_write_config(dev, AGP_ALI_ATTBASE, (attbase & ~0xf) | i, 4); - return 0; -} - -static int -agp_ali_bind_page(device_t dev, int offset, vm_offset_t physical) -{ - struct agp_ali_softc *sc = device_get_softc(dev); - - if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) - return EINVAL; - - sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical; - return 0; -} - -static int -agp_ali_unbind_page(device_t dev, int offset) -{ - struct agp_ali_softc *sc = device_get_softc(dev); - - if (offset < 0 || offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) - return EINVAL; - - sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; - return 0; -} - -static void -agp_ali_flush_tlb(device_t dev) -{ - pci_write_config(dev, AGP_ALI_TLBCTRL, 0x90, 1); - pci_write_config(dev, AGP_ALI_TLBCTRL, 0x10, 1); -} - -static device_method_t agp_ali_methods[] = { - /* Device interface */ - DEVMETHOD(device_probe, agp_ali_probe), - DEVMETHOD(device_attach, agp_ali_attach), - DEVMETHOD(device_detach, agp_ali_detach), - DEVMETHOD(device_shutdown, bus_generic_shutdown), - DEVMETHOD(device_suspend, bus_generic_suspend), - DEVMETHOD(device_resume, bus_generic_resume), - - /* AGP interface */ - DEVMETHOD(agp_get_aperture, agp_ali_get_aperture), - DEVMETHOD(agp_set_aperture, agp_ali_set_aperture), - DEVMETHOD(agp_bind_page, agp_ali_bind_page), - DEVMETHOD(agp_unbind_page, agp_ali_unbind_page), - DEVMETHOD(agp_flush_tlb, agp_ali_flush_tlb), - DEVMETHOD(agp_enable, agp_generic_enable), - DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory), - DEVMETHOD(agp_free_memory, agp_generic_free_memory), - DEVMETHOD(agp_bind_memory, agp_generic_bind_memory), - DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory), - - { 0, 0 } -}; - -static driver_t agp_ali_driver = { - "agp", - agp_ali_methods, - sizeof(struct agp_ali_softc), -}; - -static devclass_t agp_devclass; - -DRIVER_MODULE(agp_ali, hostb, agp_ali_driver, agp_devclass, 0, 0); -MODULE_DEPEND(agp_ali, agp, 1, 1, 1); -MODULE_DEPEND(agp_ali, pci, 1, 1, 1); |
