/* * VIA AGPGART routines. */ #include <linux/types.h> #include <linux/module.h> #include <linux/pci.h> #include <linux/init.h> #include <linux/agp_backend.h> #include "agp.h" static struct pci_device_id agp_via_pci_table[]; #define VIA_GARTCTRL 0x80 #define VIA_APSIZE 0x84 #define VIA_ATTBASE 0x88 #define VIA_AGP3_GARTCTRL 0x90 #define VIA_AGP3_APSIZE 0x94 #define VIA_AGP3_ATTBASE 0x98 #define VIA_AGPSEL 0xfd static int via_fetch_size(void) { int i; u8 temp; struct aper_size_info_8 *values; values = A_SIZE_8(agp_bridge->driver->aperture_sizes); pci_read_config_byte(agp_bridge->dev, VIA_APSIZE, &temp); for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) { if (temp == values[i].size_value) { agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i); agp_bridge->aperture_size_idx = i; return values[i].size; } } return 0; } static int via_configure(void) { u32 temp; struct aper_size_info_8 *current_size; current_size = A_SIZE_8(agp_bridge->current_size); /* aperture size */ pci_write_config_byte(agp_bridge->dev, VIA_APSIZE, current_size->size_value); /* address to map too */ pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp); agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); /* GART control register */ pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000000f); /* attbase - aperture GATT base */ pci_write_config_dword(agp_bridge->dev, VIA_ATTBASE, (agp_bridge->gatt_bus_addr & 0xfffff000) | 3); return 0; } static void via_cleanup(void) { struct aper_size_info_8 *previous_size; previous_size = A_SIZE_8(agp_bridge->previous_size); pci_write_config_byte(agp_bridge->dev, VIA_APSIZE, previous_size->size_value); /* Do not disable by writing 0 to VIA_ATTBASE, it screws things up * during reinitialization. */ } static void via_tlbflush(struct agp_memory *mem) { pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000008f); pci_write_config_dword(agp_bridge->dev, VIA_GARTCTRL, 0x0000000f); } static struct aper_size_info_8 via_generic_sizes[7] = { {256, 65536, 6, 0}, {128, 32768, 5, 128}, {64, 16384, 4, 192}, {32, 8192, 3, 224}, {16, 4096, 2, 240}, {8, 2048, 1, 248}, {4, 1024, 0, 252} }; static int via_fetch_size_agp3(void) { int i; u16 temp; struct aper_size_info_16 *values; values = A_SIZE_16(agp_bridge->driver->aperture_sizes); pci_read_config_word(agp_bridge->dev, VIA_AGP3_APSIZE, &temp); temp &= 0xfff; for (i = 0; i < agp_bridge->driver->num_aperture_sizes; i++) { if (temp == values[i].size_value) { agp_bridge->previous_size = agp_bridge->current_size = (void *) (values + i); agp_bridge->aperture_size_idx = i; return values[i].size; } } return 0; } static int via_configure_agp3(void) { u32 temp; struct aper_size_info_16 *current_size; current_size = A_SIZE_16(agp_bridge->current_size); /* address to map too */ pci_read_config_dword(agp_bridge->dev, AGP_APBASE, &temp); agp_bridge->gart_bus_addr = (temp & PCI_BASE_ADDRESS_MEM_MASK); /* attbase - aperture GATT base */ pci_write_config_dword(agp_bridge->dev, VIA_AGP3_ATTBASE, agp_bridge->gatt_bus_addr & 0xfffff000); /* 1. Enable GTLB in RX90<7>, all AGP aperture access needs to fetch * translation table first. * 2. Enable AGP aperture in RX91<0>. This bit controls the enabling of the * graphics AGP aperture for the AGP3.0 port. */ pci_read_config_dword(agp_bridge->dev, VIA_AGP3_GARTCTRL, &temp); pci_write_config_dword(agp_bridge->dev, VIA_AGP3_GARTCTRL, temp | (3<<7)); return 0; } static void via_cleanup_agp3(void) { struct aper_size_info_16 *previous_size; previous_size = A_SIZE_16(agp_bridge->previous_size); pci_write_config_byte(agp_bridge->dev, VIA_APSIZE, previous_size->size_value); } static void via_tlbflush_agp3(struct agp_memory *mem) { u32 temp; pci_read_config_dword(agp_bridge->dev, VIA_AGP3_GARTCTRL, &temp); pci_write_config_dword(agp_bridge->dev, VIA_AGP3_GARTCTRL, temp & ~(1<<7)); pci_write_config_dword(agp_bridge->dev, VIA_AGP3_GARTCTRL, temp); } struct agp_bridge_driver via_agp3_driver = { .owner = THIS_MODULE, .aperture_sizes = agp3_generic_sizes, .size_type = U8_APER_SIZE, .num_aperture_sizes = 10, .configure = via_configure_agp3, .fetch_size = via_fetch_size_agp3, .cleanup = via_cleanup_agp3, .tlb_flush = via_tlbflush_agp3, .mask_memory = agp_generic_mask_memory, .masks = NULL, .agp_enable = agp_generic_enable, .cache_flush = global_cache_flush, .create_gatt_table = agp_generic_create_gatt_table, .free_gatt_table = agp_generic_free_gatt_table, .insert_memory = agp_generic_insert_memory, .remove_memory = agp_generic_remove_memory, .alloc_by_type = agp_generic_alloc_by_type, .free_by_type = agp_generic_free_by_type, .agp_alloc_page = agp_generic_alloc_page, .agp_destroy_page = agp_generic_destroy_page, }; struct agp_bridge_driver via_driver = { .owner = THIS_MODULE, .aperture_sizes = via_generic_sizes, .size_type = U8_APER_SIZE, .num_aperture_sizes = 7, .configure = via_configure, .fetch_size = via_fetch_size, .cleanup = via_cleanup, .tlb_flush = via_tlbflush, .mask_memory = agp_generic_mask_memory, .masks = NULL, .agp_enable = agp_generic_enable, .cache_flush = global_cache_flush, .create_gatt_table = agp_generic_create_gatt_table, .free_gatt_table = agp_generic_free_gatt_table, .insert_memory = agp_generic_insert_memory, .remove_memory = agp_generic_remove_memory, .alloc_by_type = agp_generic_alloc_by_type, .free_by_type = agp_generic_free_by_type, .agp_alloc_page = agp_generic_alloc_page, .agp_destroy_page = agp_generic_destroy_page, }; static struct agp_device_ids via_agp_device_ids[] __devinitdata = { { .device_id = PCI_DEVICE_ID_VIA_82C597_0, .chipset_name = "Apollo VP3", }, { .device_id = PCI_DEVICE_ID_VIA_82C598_0, .chipset_name = "Apollo MVP3", }, { .device_id = PCI_DEVICE_ID_VIA_8501_0, .chipset_name = "Apollo MVP4", }, /* VT8601 */ { .device_id = PCI_DEVICE_ID_VIA_8601_0, .chipset_name = "Apollo ProMedia/PLE133Ta", }, /* VT82C693A / VT28C694T */ { .device_id = PCI_DEVICE_ID_VIA_82C691_0, .chipset_name = "Apollo Pro 133", }, { .device_id = PCI_DEVICE_ID_VIA_8371_0, .chipset_name = "KX133", }, /* VT8633 */ { .device_id = PCI_DEVICE_ID_VIA_8633_0, .chipset_name = "Pro 266", }, { .device_id = PCI_DEVICE_ID_VIA_XN266, .chipset_name = "Apollo Pro266", }, /* VT8361 */ { .device_id = PCI_DEVICE_ID_VIA_8361, .chipset_name = "KLE133", }, /* VT8365 / VT8362 */ { .device_id = PCI_DEVICE_ID_VIA_8363_0, .chipset_name = "Twister-K/KT133x/KM133", }, /* VT8753A */ { .device_id = PCI_DEVICE_ID_VIA_8753_0, .chipset_name = "P4X266", }, /* VT8366 */ { .device_id = PCI_DEVICE_ID_VIA_8367_0, .chipset_name = "KT266/KY266x/KT333", }, /* VT8633 (for CuMine/ Celeron) */ { .device_id = PCI_DEVICE_ID_VIA_8653_0, .chipset_name = "Pro266T", }, /* KM266 / PM266 */ { .device_id = PCI_DEVICE_ID_VIA_XM266, .chipset_name = "PM266/KM266", }, /* CLE266 */ { .device_id = PCI_DEVICE_ID_VIA_862X_0, .chipset_name = "CLE266", }, { .device_id = PCI_DEVICE_ID_VIA_8377_0, .chipset_name = "KT400/KT400A/KT600", }, /* VT8604 / VT8605 / VT8603 * (Apollo Pro133A chipset with S3 Savage4) */ { .device_id = PCI_DEVICE_ID_VIA_8605_0, .chipset_name = "ProSavage PM133/PL133/PN133" }, /* P4M266x/P4N266 */ { .device_id = PCI_DEVICE_ID_VIA_8703_51_0, .chipset_name = "P4M266x/P4N266", }, /* VT8754 */ { .device_id = PCI_DEVICE_ID_VIA_8754C_0, .chipset_name = "PT800", }, /* P4X600 */ { .device_id = PCI_DEVICE_ID_VIA_8763_0, .chipset_name = "P4X600" }, /* KM400 */ { .device_id = PCI_DEVICE_ID_VIA_8378_0, .chipset_name = "KM400/KM400A", }, /* PT880 */ { .device_id = PCI_DEVICE_ID_VIA_PT880, .chipset_name = "PT880", }, /* PT890 */ { .device_id = PCI_DEVICE_ID_VIA_8783_0, .chipset_name = "PT890", }, /* PM800/PN800/PM880/PN880 */ { .device_id = PCI_DEVICE_ID_VIA_PX8X0_0, .chipset_name = "PM800/PN800/PM880/PN880", }, /* KT880 */ { .device_id = PCI_DEVICE_ID_VIA_3269_0, .chipset_name = "KT880", }, /* KTxxx/Px8xx */ { .device_id = PCI_DEVICE_ID_VIA_83_87XX_1, .chipset_name = "VT83xx/VT87xx/KTxxx/Px8xx", }, /* P4M800 */ { .device_id = PCI_DEVICE_ID_VIA_3296_0, .chipset_name = "P4M800", }, { }, /* dummy final entry, always present */ }; /* * VIA's AGP3 chipsets do magick to put the AGP bridge compliant * with the same standards version as the graphics card. */ static void check_via_agp3 (struct agp_bridge_data *bridge) { u8 reg; pci_read_config_byte(bridge->dev, VIA_AGPSEL, ®); /* Check AGP 2.0 compatibility mode. */ if ((reg & (1<<1))==0) bridge->driver = &via_agp3_driver; } static int __devinit agp_via_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { struct agp_device_ids *devs = via_agp_device_ids; struct agp_bridge_data *bridge; int j = 0; u8 cap_ptr; cap_ptr = pci_find_capability(pdev, PCI_CAP_ID_AGP); if (!cap_ptr) return -ENODEV; j = ent - agp_via_pci_table; printk (KERN_INFO PFX "Detected VIA %s chipset\n", devs[j].chipset_name); bridge = agp_alloc_bridge(); if (!bridge) return -ENOMEM; bridge->dev = pdev; bridge->capndx = cap_ptr; bridge->driver = &via_driver; /* * Garg, there are KT400s with KT266 IDs. */ if (pdev->device == PCI_DEVICE_ID_VIA_8367_0) { /* Is there a KT400 subsystem ? */ if (pdev->subsystem_device == PCI_DEVICE_ID_VIA_8377_0) { printk(KERN_INFO PFX "Found KT400 in disguise as a KT266.\n"); check_via_agp3(bridge); } } /* If this is an AGP3 bridge, check which mode its in and adjust. */ get_agp_version(bridge); if (bridge->major_version >= 3) check_via_agp3(bridge); /* Fill in the mode register */ pci_read_config_dword(pdev, bridge->capndx+PCI_AGP_STATUS, &bridge->mode); pci_set_drvdata(pdev, bridge); return agp_add_bridge(bridge); } static void __devexit agp_via_remove(struct pci_dev *pdev) { struct agp_bridge_data *bridge = pci_get_drvdata(pdev); agp_remove_bridge(bridge); agp_put_bridge(bridge); } #ifdef CONFIG_PM static int agp_via_suspend(struct pci_dev *pdev, u32 state) { pci_save_state (pdev, pdev->saved_config_space); pci_set_power_state (pdev, 3); return 0; } static int agp_via_resume(struct pci_dev *pdev) { struct agp_bridge_data *bridge = pci_get_drvdata(pdev); pci_set_power_state (pdev, 0); pci_restore_state(pdev, pdev->saved_config_space); if (bridge->driver == &via_agp3_driver) return via_configure_agp3(); else if (bridge->driver == &via_driver) return via_configure(); return 0; } #endif /* CONFIG_PM */ /* must be the same order as name table above */ static struct pci_device_id agp_via_pci_table[] = { #define ID(x) \ { \ .class = (PCI_CLASS_BRIDGE_HOST << 8), \ .class_mask = ~0, \ .vendor = PCI_VENDOR_ID_VIA, \ .device = x, \ .subvendor = PCI_ANY_ID, \ .subdevice = PCI_ANY_ID, \ } ID(PCI_DEVICE_ID_VIA_82C597_0), ID(PCI_DEVICE_ID_VIA_82C598_0), ID(PCI_DEVICE_ID_VIA_8501_0), ID(PCI_DEVICE_ID_VIA_8601_0), ID(PCI_DEVICE_ID_VIA_82C691_0), ID(PCI_DEVICE_ID_VIA_8371_0), ID(PCI_DEVICE_ID_VIA_8633_0), ID(PCI_DEVICE_ID_VIA_XN266), ID(PCI_DEVICE_ID_VIA_8361), ID(PCI_DEVICE_ID_VIA_8363_0), ID(PCI_DEVICE_ID_VIA_8753_0), ID(PCI_DEVICE_ID_VIA_8367_0), ID(PCI_DEVICE_ID_VIA_8653_0), ID(PCI_DEVICE_ID_VIA_XM266), ID(PCI_DEVICE_ID_VIA_862X_0), ID(PCI_DEVICE_ID_VIA_8377_0), ID(PCI_DEVICE_ID_VIA_8605_0), ID(PCI_DEVICE_ID_VIA_8703_51_0), ID(PCI_DEVICE_ID_VIA_8754C_0), ID(PCI_DEVICE_ID_VIA_8763_0), ID(PCI_DEVICE_ID_VIA_8378_0), ID(PCI_DEVICE_ID_VIA_PT880), ID(PCI_DEVICE_ID_VIA_8783_0), ID(PCI_DEVICE_ID_VIA_PX8X0_0), ID(PCI_DEVICE_ID_VIA_3269_0), ID(PCI_DEVICE_ID_VIA_83_87XX_1), ID(PCI_DEVICE_ID_VIA_3296_0), { } }; MODULE_DEVICE_TABLE(pci, agp_via_pci_table); static struct pci_driver agp_via_pci_driver = { .name = "agpgart-via", .id_table = agp_via_pci_table, .probe = agp_via_probe, .remove = agp_via_remove, #ifdef CONFIG_PM .suspend = agp_via_suspend, .resume = agp_via_resume, #endif }; static int __init agp_via_init(void) { return pci_module_init(&agp_via_pci_driver); } static void __exit agp_via_cleanup(void) { pci_unregister_driver(&agp_via_pci_driver); } module_init(agp_via_init); module_exit(agp_via_cleanup); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Dave Jones <davej@codemonkey.org.uk>");