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agp.c
(24.2 KB)
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agp_ali.c
(6.83 KB)
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agp_amd.c
(10.51 KB)
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agp_amd64.c
(13.35 KB)
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agp_apple.c
(7.57 KB)
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agp_ati.c
(9.93 KB)
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agp_i810.c
(61.38 KB)
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agp_i810.h
(3.96 KB)
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agp_if.m
(3.81 KB)
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agp_intel.c
(11.72 KB)
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agp_nvidia.c
(12.05 KB)
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agp_sis.c
(7.31 KB)
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agp_via.c
(11.22 KB)
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agppriv.h
(3.83 KB)
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agpreg.h
(12.58 KB)
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agpvar.h
(4.37 KB)
Editing: agp_apple.c
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2010 Nathan Whitehorn * 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 <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 <machine/resource.h> #include <dev/agp/agppriv.h> #include <dev/agp/agpreg.h> #include <dev/pci/pcivar.h> #include <dev/pci/pcireg.h> #include <vm/vm.h> #include <vm/vm_object.h> #include <vm/pmap.h> #define UNIN_AGP_GART_BASE 0x8c #define UNIN_AGP_BASE_ADDR 0x90 #define UNIN_AGP_GART_CONTROL 0x94 #define UNIN_AGP_GART_INVAL 0x00000001 #define UNIN_AGP_GART_ENABLE 0x00000100 #define UNIN_AGP_GART_2XRESET 0x00010000 #define UNIN_AGP_U3_GART_PERFRD 0x00080000 struct agp_apple_softc { struct agp_softc agp; uint32_t aperture; struct agp_gatt *gatt; int u3; int needs_2x_reset; }; static int agp_apple_probe(device_t dev) { if (resource_disabled("agp", device_get_unit(dev))) return (ENXIO); if (pci_get_class(dev) != PCIC_BRIDGE || pci_get_subclass(dev) != PCIS_BRIDGE_HOST) return (ENXIO); if (agp_find_caps(dev) == 0) return (ENXIO); if (pci_get_class(dev) != PCIC_BRIDGE || pci_get_subclass(dev) != PCIS_BRIDGE_HOST) return (ENXIO); switch (pci_get_devid(dev)) { case 0x0020106b: case 0x0027106b: device_set_desc(dev, "Apple UniNorth AGP Bridge"); return (BUS_PROBE_DEFAULT); case 0x002d106b: device_set_desc(dev, "Apple UniNorth 1.5 AGP Bridge"); return (BUS_PROBE_DEFAULT); case 0x0034106b: device_set_desc(dev, "Apple UniNorth 2 AGP Bridge"); return (BUS_PROBE_DEFAULT); case 0x004b106b: case 0x0058106b: case 0x0059106b: device_set_desc(dev, "Apple U3 AGP Bridge"); return (BUS_PROBE_DEFAULT); case 0x0066106b: device_set_desc(dev, "Apple Intrepid AGP Bridge"); return (BUS_PROBE_DEFAULT); } return (ENXIO); } static int agp_apple_attach(device_t dev) { struct agp_apple_softc *sc = device_get_softc(dev); int error; /* Record quirks */ sc->needs_2x_reset = 0; sc->u3 = 0; switch (pci_get_devid(dev)) { case 0x0020106b: case 0x0027106b: sc->needs_2x_reset = 1; break; case 0x004b106b: case 0x0058106b: case 0x0059106b: sc->u3 = 1; break; } /* Set the aperture bus address base (must be 0) */ pci_write_config(dev, UNIN_AGP_BASE_ADDR, 0, 4); agp_set_aperture_resource(dev, -1); error = agp_generic_attach(dev); if (error) return (error); sc->aperture = 256*1024*1024; for (sc->aperture = 256*1024*1024; sc->aperture >= 4*1024*1024; sc->aperture /= 2) { sc->gatt = agp_alloc_gatt(dev); if (sc->gatt) break; } if (sc->aperture < 4*1024*1024) { agp_generic_detach(dev); return ENOMEM; } /* Install the gatt. */ AGP_SET_APERTURE(dev, sc->aperture); /* XXX: U3 scratch page? */ /* Enable the aperture and TLB. */ AGP_FLUSH_TLB(dev); return (0); } static int agp_apple_detach(device_t dev) { struct agp_apple_softc *sc = device_get_softc(dev); agp_free_cdev(dev); /* Disable the aperture and TLB */ pci_write_config(dev, UNIN_AGP_GART_CONTROL, UNIN_AGP_GART_INVAL, 4); pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4); if (sc->needs_2x_reset) { pci_write_config(dev, UNIN_AGP_GART_CONTROL, UNIN_AGP_GART_2XRESET, 4); pci_write_config(dev, UNIN_AGP_GART_CONTROL, 0, 4); } AGP_SET_APERTURE(dev, 0); agp_free_gatt(sc->gatt); agp_free_res(dev); return 0; } static uint32_t agp_apple_get_aperture(device_t dev) { struct agp_apple_softc *sc = device_get_softc(dev); return (sc->aperture); } static int agp_apple_set_aperture(device_t dev, uint32_t aperture) { struct agp_apple_softc *sc = device_get_softc(dev); /* * Check for a multiple of 4 MB and make sure it is within the * programmable range. */ if (aperture % (4*1024*1024) || aperture < 4*1024*1024 || aperture > ((sc->u3) ? 512 : 256)*1024*1024) return EINVAL; /* The aperture value is a multiple of 4 MB */ aperture /= (4*1024*1024); pci_write_config(dev, UNIN_AGP_GART_BASE, (sc->gatt->ag_physical & 0xfffff000) | aperture, 4); return (0); } static int agp_apple_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical) { struct agp_apple_softc *sc = device_get_softc(dev); if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) return EINVAL; sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical; return (0); } static int agp_apple_unbind_page(device_t dev, vm_offset_t offset) { struct agp_apple_softc *sc = device_get_softc(dev); if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) return EINVAL; sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; return (0); } static void agp_apple_flush_tlb(device_t dev) { struct agp_apple_softc *sc = device_get_softc(dev); uint32_t cntrl = UNIN_AGP_GART_ENABLE; if (sc->u3) cntrl |= UNIN_AGP_U3_GART_PERFRD; pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl | UNIN_AGP_GART_INVAL, 4); pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4); if (sc->needs_2x_reset) { pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl | UNIN_AGP_GART_2XRESET, 4); pci_write_config(dev, UNIN_AGP_GART_CONTROL, cntrl, 4); } } static device_method_t agp_apple_methods[] = { /* Device interface */ DEVMETHOD(device_probe, agp_apple_probe), DEVMETHOD(device_attach, agp_apple_attach), DEVMETHOD(device_detach, agp_apple_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_apple_get_aperture), DEVMETHOD(agp_set_aperture, agp_apple_set_aperture), DEVMETHOD(agp_bind_page, agp_apple_bind_page), DEVMETHOD(agp_unbind_page, agp_apple_unbind_page), DEVMETHOD(agp_flush_tlb, agp_apple_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_apple_driver = { "agp", agp_apple_methods, sizeof(struct agp_apple_softc), }; static devclass_t agp_devclass; DRIVER_MODULE(agp_apple, hostb, agp_apple_driver, agp_devclass, 0, 0); MODULE_DEPEND(agp_apple, agp, 1, 1, 1); MODULE_DEPEND(agp_apple, pci, 1, 1, 1);
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