161452Sdfr/*- 261452Sdfr * Copyright (c) 2000 Doug Rabson 361452Sdfr * All rights reserved. 461452Sdfr * 561452Sdfr * Redistribution and use in source and binary forms, with or without 661452Sdfr * modification, are permitted provided that the following conditions 761452Sdfr * are met: 861452Sdfr * 1. Redistributions of source code must retain the above copyright 961452Sdfr * notice, this list of conditions and the following disclaimer. 1061452Sdfr * 2. Redistributions in binary form must reproduce the above copyright 1161452Sdfr * notice, this list of conditions and the following disclaimer in the 1261452Sdfr * documentation and/or other materials provided with the distribution. 1361452Sdfr * 1461452Sdfr * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 1561452Sdfr * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 1661452Sdfr * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 1761452Sdfr * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 1861452Sdfr * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 1961452Sdfr * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 2061452Sdfr * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2161452Sdfr * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 2261452Sdfr * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 2361452Sdfr * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 2461452Sdfr * SUCH DAMAGE. 2561452Sdfr */ 2661452Sdfr 27116192Sobrien#include <sys/cdefs.h> 28116192Sobrien__FBSDID("$FreeBSD: releng/10.2/sys/dev/agp/agp_sis.c 244926 2013-01-01 18:16:49Z antoine $"); 29116192Sobrien 3061452Sdfr#include <sys/param.h> 3161452Sdfr#include <sys/systm.h> 3261452Sdfr#include <sys/malloc.h> 3361452Sdfr#include <sys/kernel.h> 34129878Sphk#include <sys/module.h> 3561452Sdfr#include <sys/bus.h> 3661452Sdfr#include <sys/lock.h> 3776827Salfred#include <sys/mutex.h> 3879339Sjhb#include <sys/proc.h> 3961452Sdfr 40173573Sjhb#include <dev/agp/agppriv.h> 41173573Sjhb#include <dev/agp/agpreg.h> 42119288Simp#include <dev/pci/pcivar.h> 43119288Simp#include <dev/pci/pcireg.h> 4461452Sdfr 4561452Sdfr#include <vm/vm.h> 4661452Sdfr#include <vm/vm_object.h> 4761452Sdfr#include <vm/pmap.h> 4861452Sdfr 4961452Sdfrstruct agp_sis_softc { 5061452Sdfr struct agp_softc agp; 5161452Sdfr u_int32_t initial_aperture; /* aperture size at startup */ 5261452Sdfr struct agp_gatt *gatt; 5361452Sdfr}; 5461452Sdfr 5561452Sdfrstatic const char* 5661452Sdfragp_sis_match(device_t dev) 5761452Sdfr{ 5861452Sdfr if (pci_get_class(dev) != PCIC_BRIDGE 5961452Sdfr || pci_get_subclass(dev) != PCIS_BRIDGE_HOST) 6061452Sdfr return NULL; 6161452Sdfr 6261452Sdfr if (agp_find_caps(dev) == 0) 6361452Sdfr return NULL; 6461452Sdfr 6561452Sdfr switch (pci_get_devid(dev)) { 6661452Sdfr case 0x00011039: 6761452Sdfr return ("SiS 5591 host to AGP bridge"); 68129415Sanholt case 0x05301039: 69129415Sanholt return ("SiS 530 host to AGP bridge"); 70129415Sanholt case 0x05401039: 71129415Sanholt return ("SiS 540 host to AGP bridge"); 72129415Sanholt case 0x05501039: 73129415Sanholt return ("SiS 550 host to AGP bridge"); 74129415Sanholt case 0x06201039: 75129415Sanholt return ("SiS 620 host to AGP bridge"); 76129415Sanholt case 0x06301039: 77129415Sanholt return ("SiS 630 host to AGP bridge"); 78129415Sanholt case 0x06451039: 79129415Sanholt return ("SiS 645 host to AGP bridge"); 80129415Sanholt case 0x06461039: 81129415Sanholt return ("SiS 645DX host to AGP bridge"); 82112184Ssos case 0x06481039: 83112184Ssos return ("SiS 648 host to AGP bridge"); 84129415Sanholt case 0x06501039: 85129415Sanholt return ("SiS 650 host to AGP bridge"); 86129415Sanholt case 0x06511039: 87129415Sanholt return ("SiS 651 host to AGP bridge"); 88129415Sanholt case 0x06551039: 89129415Sanholt return ("SiS 655 host to AGP bridge"); 90129415Sanholt case 0x06611039: 91129415Sanholt return ("SiS 661 host to AGP bridge"); 92129415Sanholt case 0x07301039: 93129415Sanholt return ("SiS 730 host to AGP bridge"); 94129415Sanholt case 0x07351039: 95129415Sanholt return ("SiS 735 host to AGP bridge"); 96129415Sanholt case 0x07401039: 97129415Sanholt return ("SiS 740 host to AGP bridge"); 98129415Sanholt case 0x07411039: 99129415Sanholt return ("SiS 741 host to AGP bridge"); 100129415Sanholt case 0x07451039: 101129415Sanholt return ("SiS 745 host to AGP bridge"); 102129415Sanholt case 0x07461039: 103129415Sanholt return ("SiS 746 host to AGP bridge"); 104244926Santoine } 10561452Sdfr 10661452Sdfr return NULL; 10761452Sdfr} 10861452Sdfr 10961452Sdfrstatic int 11061452Sdfragp_sis_probe(device_t dev) 11161452Sdfr{ 11261452Sdfr const char *desc; 11361452Sdfr 114241885Seadler if (resource_disabled("agp", device_get_unit(dev))) 115241885Seadler return (ENXIO); 11661452Sdfr desc = agp_sis_match(dev); 11761452Sdfr if (desc) { 11861452Sdfr device_set_desc(dev, desc); 119142398Simp return BUS_PROBE_DEFAULT; 12061452Sdfr } 12161452Sdfr 12261452Sdfr return ENXIO; 12361452Sdfr} 12461452Sdfr 12561452Sdfrstatic int 12661452Sdfragp_sis_attach(device_t dev) 12761452Sdfr{ 12861452Sdfr struct agp_sis_softc *sc = device_get_softc(dev); 12961452Sdfr struct agp_gatt *gatt; 13061452Sdfr int error; 13161452Sdfr 13261452Sdfr error = agp_generic_attach(dev); 13361452Sdfr if (error) 13461452Sdfr return error; 13561452Sdfr 13661452Sdfr sc->initial_aperture = AGP_GET_APERTURE(dev); 13761452Sdfr 13861452Sdfr for (;;) { 13961452Sdfr gatt = agp_alloc_gatt(dev); 14061452Sdfr if (gatt) 14161452Sdfr break; 14261452Sdfr 14361452Sdfr /* 14461452Sdfr * Probably contigmalloc failure. Try reducing the 14561452Sdfr * aperture so that the gatt size reduces. 14661452Sdfr */ 14761452Sdfr if (AGP_SET_APERTURE(dev, AGP_GET_APERTURE(dev) / 2)) { 14861452Sdfr agp_generic_detach(dev); 14961452Sdfr return ENOMEM; 15061452Sdfr } 15161452Sdfr } 15261452Sdfr sc->gatt = gatt; 15361452Sdfr 15461452Sdfr /* Install the gatt. */ 15561452Sdfr pci_write_config(dev, AGP_SIS_ATTBASE, gatt->ag_physical, 4); 15661452Sdfr 15761452Sdfr /* Enable the aperture. */ 15861452Sdfr pci_write_config(dev, AGP_SIS_WINCTRL, 15961452Sdfr pci_read_config(dev, AGP_SIS_WINCTRL, 1) | 3, 1); 16061452Sdfr 16161452Sdfr /* 16261452Sdfr * Enable the TLB and make it automatically invalidate entries 16361452Sdfr * when the GATT is written. 16461452Sdfr */ 16561452Sdfr pci_write_config(dev, AGP_SIS_TLBCTRL, 0x05, 1); 16661452Sdfr 16761452Sdfr return 0; 16861452Sdfr} 16961452Sdfr 17061452Sdfrstatic int 17161452Sdfragp_sis_detach(device_t dev) 17261452Sdfr{ 17361452Sdfr struct agp_sis_softc *sc = device_get_softc(dev); 17461452Sdfr 175173203Sjhb agp_free_cdev(dev); 17661452Sdfr 17761452Sdfr /* Disable the aperture.. */ 17861452Sdfr pci_write_config(dev, AGP_SIS_WINCTRL, 17961452Sdfr pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~3, 1); 18061452Sdfr 18161452Sdfr /* and the TLB. */ 18261452Sdfr pci_write_config(dev, AGP_SIS_TLBCTRL, 0, 1); 18361452Sdfr 18461452Sdfr /* Put the aperture back the way it started. */ 18561452Sdfr AGP_SET_APERTURE(dev, sc->initial_aperture); 18661452Sdfr 18761452Sdfr agp_free_gatt(sc->gatt); 188173203Sjhb agp_free_res(dev); 18961452Sdfr return 0; 19061452Sdfr} 19161452Sdfr 19261452Sdfrstatic u_int32_t 19361452Sdfragp_sis_get_aperture(device_t dev) 19461452Sdfr{ 19561452Sdfr int gws; 19661452Sdfr 19761452Sdfr /* 19861452Sdfr * The aperture size is equal to 4M<<gws. 19961452Sdfr */ 20061452Sdfr gws = (pci_read_config(dev, AGP_SIS_WINCTRL, 1) & 0x70) >> 4; 20161452Sdfr return (4*1024*1024) << gws; 20261452Sdfr} 20361452Sdfr 20461452Sdfrstatic int 20561452Sdfragp_sis_set_aperture(device_t dev, u_int32_t aperture) 20661452Sdfr{ 20761452Sdfr int gws; 20861452Sdfr 20961452Sdfr /* 21061452Sdfr * Check for a power of two and make sure its within the 21161452Sdfr * programmable range. 21261452Sdfr */ 21361452Sdfr if (aperture & (aperture - 1) 21461452Sdfr || aperture < 4*1024*1024 21561452Sdfr || aperture > 256*1024*1024) 21661452Sdfr return EINVAL; 21761452Sdfr 21861452Sdfr gws = ffs(aperture / 4*1024*1024) - 1; 21961452Sdfr 22061452Sdfr pci_write_config(dev, AGP_SIS_WINCTRL, 22161452Sdfr ((pci_read_config(dev, AGP_SIS_WINCTRL, 1) & ~0x70) 22261452Sdfr | gws << 4), 1); 22361452Sdfr 22461452Sdfr return 0; 22561452Sdfr} 22661452Sdfr 22761452Sdfrstatic int 228194017Savgagp_sis_bind_page(device_t dev, vm_offset_t offset, vm_offset_t physical) 22961452Sdfr{ 23061452Sdfr struct agp_sis_softc *sc = device_get_softc(dev); 23161452Sdfr 232194017Savg if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 23361452Sdfr return EINVAL; 23461452Sdfr 23561452Sdfr sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = physical; 23661452Sdfr return 0; 23761452Sdfr} 23861452Sdfr 23961452Sdfrstatic int 240194017Savgagp_sis_unbind_page(device_t dev, vm_offset_t offset) 24161452Sdfr{ 24261452Sdfr struct agp_sis_softc *sc = device_get_softc(dev); 24361452Sdfr 244194017Savg if (offset >= (sc->gatt->ag_entries << AGP_PAGE_SHIFT)) 24561452Sdfr return EINVAL; 24661452Sdfr 24761452Sdfr sc->gatt->ag_virtual[offset >> AGP_PAGE_SHIFT] = 0; 24861452Sdfr return 0; 24961452Sdfr} 25061452Sdfr 25161452Sdfrstatic void 25261452Sdfragp_sis_flush_tlb(device_t dev) 25361452Sdfr{ 25461452Sdfr pci_write_config(dev, AGP_SIS_TLBFLUSH, 0x02, 1); 25561452Sdfr} 25661452Sdfr 25761452Sdfrstatic device_method_t agp_sis_methods[] = { 25861452Sdfr /* Device interface */ 25961452Sdfr DEVMETHOD(device_probe, agp_sis_probe), 26061452Sdfr DEVMETHOD(device_attach, agp_sis_attach), 26161452Sdfr DEVMETHOD(device_detach, agp_sis_detach), 26261452Sdfr DEVMETHOD(device_shutdown, bus_generic_shutdown), 26361452Sdfr DEVMETHOD(device_suspend, bus_generic_suspend), 26461452Sdfr DEVMETHOD(device_resume, bus_generic_resume), 26561452Sdfr 26661452Sdfr /* AGP interface */ 26761452Sdfr DEVMETHOD(agp_get_aperture, agp_sis_get_aperture), 26861452Sdfr DEVMETHOD(agp_set_aperture, agp_sis_set_aperture), 26961452Sdfr DEVMETHOD(agp_bind_page, agp_sis_bind_page), 27061452Sdfr DEVMETHOD(agp_unbind_page, agp_sis_unbind_page), 27161452Sdfr DEVMETHOD(agp_flush_tlb, agp_sis_flush_tlb), 27261452Sdfr DEVMETHOD(agp_enable, agp_generic_enable), 27361452Sdfr DEVMETHOD(agp_alloc_memory, agp_generic_alloc_memory), 27461452Sdfr DEVMETHOD(agp_free_memory, agp_generic_free_memory), 27561452Sdfr DEVMETHOD(agp_bind_memory, agp_generic_bind_memory), 27661452Sdfr DEVMETHOD(agp_unbind_memory, agp_generic_unbind_memory), 27761452Sdfr 27861452Sdfr { 0, 0 } 27961452Sdfr}; 28061452Sdfr 28161452Sdfrstatic driver_t agp_sis_driver = { 28261452Sdfr "agp", 28361452Sdfr agp_sis_methods, 28461452Sdfr sizeof(struct agp_sis_softc), 28561452Sdfr}; 28661452Sdfr 28761452Sdfrstatic devclass_t agp_devclass; 28861452Sdfr 289153572SjhbDRIVER_MODULE(agp_sis, hostb, agp_sis_driver, agp_devclass, 0, 0); 290113506SmdoddMODULE_DEPEND(agp_sis, agp, 1, 1, 1); 291113506SmdoddMODULE_DEPEND(agp_sis, pci, 1, 1, 1); 292