| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <console/console.h> |
| #include <arch/io.h> |
| #include <stdint.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include <device/hypertransport.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <bitops.h> |
| #include <cpu/cpu.h> |
| |
| #include <cpu/x86/lapic.h> |
| |
| #if CONFIG_LOGICAL_CPUS==1 |
| #include <cpu/amd/quadcore.h> |
| #include <pc80/mc146818rtc.h> |
| #endif |
| |
| #include "chip.h" |
| #include "root_complex/chip.h" |
| #include "northbridge.h" |
| |
| #include "amdfam10.h" |
| |
| #if HW_MEM_HOLE_SIZEK != 0 |
| #include <cpu/amd/model_10xxx_rev.h> |
| #endif |
| |
| #include <cpu/amd/amdfam10_sysconf.h> |
| |
| struct amdfam10_sysconf_t sysconf; |
| |
| #define FX_DEVS NODE_NUMS |
| static device_t __f0_dev[FX_DEVS]; |
| static device_t __f1_dev[FX_DEVS]; |
| static device_t __f2_dev[FX_DEVS]; |
| static device_t __f4_dev[FX_DEVS]; |
| |
| device_t get_node_pci(u32 nodeid, u32 fn) |
| { |
| #if NODE_NUMS == 64 |
| if(nodeid<32) { |
| return dev_find_slot(CBB, PCI_DEVFN(CDB + nodeid, fn)); |
| } else { |
| return dev_find_slot(CBB-1, PCI_DEVFN(CDB + nodeid - 32, fn)); |
| } |
| |
| #else |
| return dev_find_slot(CBB, PCI_DEVFN(CDB + nodeid, fn)); |
| #endif |
| |
| } |
| static void get_fx_devs(void) |
| { |
| int i; |
| if (__f1_dev[0]) { |
| return; |
| } |
| for(i = 0; i < FX_DEVS; i++) { |
| __f0_dev[i] = get_node_pci(i, 0); |
| __f1_dev[i] = get_node_pci(i, 1); |
| __f2_dev[i] = get_node_pci(i, 2); |
| __f4_dev[i] = get_node_pci(i, 4); |
| } |
| if (!__f1_dev[0]) { |
| printk_err("Cannot find %02x:%02x.1", CBB, CDB); |
| die("Cannot go on\n"); |
| } |
| } |
| |
| static u32 f1_read_config32(u32 reg) |
| { |
| get_fx_devs(); |
| return pci_read_config32(__f1_dev[0], reg); |
| } |
| |
| static void f1_write_config32(u32 reg, u32 value) |
| { |
| int i; |
| get_fx_devs(); |
| for(i = 0; i < FX_DEVS; i++) { |
| device_t dev; |
| dev = __f1_dev[i]; |
| if (dev && dev->enabled) { |
| pci_write_config32(dev, reg, value); |
| } |
| } |
| } |
| |
| |
| static u32 amdfam10_nodeid(device_t dev) |
| { |
| #if NODE_NUMS == 64 |
| unsigned busn; |
| busn = dev->bus->secondary; |
| if(busn != CBB) { |
| return (dev->path.pci.devfn >> 3) - CDB + 32; |
| } else { |
| return (dev->path.pci.devfn >> 3) - CDB; |
| } |
| |
| #else |
| return (dev->path.pci.devfn >> 3) - CDB; |
| #endif |
| } |
| |
| #include "amdfam10_conf.c" |
| |
| static void set_vga_enable_reg(u32 nodeid, u32 linkn) |
| { |
| u32 val; |
| |
| val = 1 | (nodeid<<4) | (linkn<<12); |
| /* it will routing (1)mmio 0xa0000:0xbffff (2) io 0x3b0:0x3bb, |
| 0x3c0:0x3df */ |
| f1_write_config32(0xf4, val); |
| |
| } |
| |
| static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, u32 link, u32 sblink, |
| u32 max, u32 offset_unitid) |
| { |
| // I want to put sb chain in bus 0 can I? |
| |
| |
| u32 link_type; |
| int i; |
| u32 ht_c_index; |
| u32 ht_unitid_base[4]; // here assume only 4 HT device on chain |
| u32 max_bus; |
| u32 min_bus; |
| u32 is_sublink1 = (link>3); |
| device_t devx; |
| u32 busses; |
| u32 segn = max>>8; |
| u32 busn = max&0xff; |
| u32 max_devfn; |
| |
| #if HT3_SUPPORT==1 |
| if(is_sublink1) { |
| u32 regpos; |
| u32 reg; |
| regpos = 0x170 + 4 * (link&3); // it is only on sublink0 |
| reg = pci_read_config32(dev, regpos); |
| if(reg & 1) return max; // already ganged no sblink1 |
| devx = get_node_pci(nodeid, 4); |
| } else |
| #endif |
| devx = dev; |
| |
| |
| dev->link[link].cap = 0x80 + ((link&3) *0x20); |
| do { |
| link_type = pci_read_config32(devx, dev->link[link].cap + 0x18); |
| } while(link_type & ConnectionPending); |
| if (!(link_type & LinkConnected)) { |
| return max; |
| } |
| do { |
| link_type = pci_read_config32(devx, dev->link[link].cap + 0x18); |
| } while(!(link_type & InitComplete)); |
| if (!(link_type & NonCoherent)) { |
| return max; |
| } |
| /* See if there is an available configuration space mapping |
| * register in function 1. |
| */ |
| ht_c_index = get_ht_c_index(nodeid, link, &sysconf); |
| |
| #if EXT_CONF_SUPPORT == 0 |
| if(ht_c_index>=4) return max; |
| #endif |
| |
| /* Set up the primary, secondary and subordinate bus numbers. |
| * We have no idea how many busses are behind this bridge yet, |
| * so we set the subordinate bus number to 0xff for the moment. |
| */ |
| |
| #if SB_HT_CHAIN_ON_BUS0 > 0 |
| // first chain will on bus 0 |
| if((nodeid == 0) && (sblink==link)) { // actually max is 0 here |
| min_bus = max; |
| } |
| #if SB_HT_CHAIN_ON_BUS0 > 1 |
| // second chain will be on 0x40, third 0x80, forth 0xc0 |
| // i would refined that to 2, 3, 4 ==> 0, 0x, 40, 0x80, 0xc0 |
| // >4 will use more segments, We can have 16 segmment and every segment have 256 bus, For that case need the kernel support mmio pci config. |
| else { |
| min_bus = ((busn>>3) + 1) << 3; // one node can have 8 link and segn is the same |
| } |
| max = min_bus | (segn<<8); |
| #else |
| //other ... |
| else { |
| min_bus = ++max; |
| } |
| #endif |
| #else |
| min_bus = ++max; |
| #endif |
| max_bus = 0xfc | (segn<<8); |
| |
| dev->link[link].secondary = min_bus; |
| dev->link[link].subordinate = max_bus; |
| /* Read the existing primary/secondary/subordinate bus |
| * number configuration. |
| */ |
| busses = pci_read_config32(devx, dev->link[link].cap + 0x14); |
| |
| /* Configure the bus numbers for this bridge: the configuration |
| * transactions will not be propagates by the bridge if it is |
| * not correctly configured |
| */ |
| busses &= 0xffff00ff; |
| busses |= ((u32)(dev->link[link].secondary) << 8); |
| pci_write_config32(devx, dev->link[link].cap + 0x14, busses); |
| |
| |
| /* set the config map space */ |
| |
| set_config_map_reg(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, sysconf.segbit, sysconf.nodes); |
| |
| /* Now we can scan all of the subordinate busses i.e. the |
| * chain on the hypertranport link |
| */ |
| for(i=0;i<4;i++) { |
| ht_unitid_base[i] = 0x20; |
| } |
| |
| //if ext conf is enabled, only need use 0x1f |
| if (min_bus == 0) |
| max_devfn = (0x17<<3) | 7; |
| else |
| max_devfn = (0x1f<<3) | 7; |
| |
| max = hypertransport_scan_chain(&dev->link[link], 0, max_devfn, max, ht_unitid_base, offset_unitid); |
| |
| |
| /* We know the number of busses behind this bridge. Set the |
| * subordinate bus number to it's real value |
| */ |
| if(ht_c_index>3) { // clear the extend reg |
| clear_config_map_reg(nodeid, link, ht_c_index, (max+1)>>sysconf.segbit, (dev->link[link].subordinate)>>sysconf.segbit, sysconf.nodes); |
| } |
| |
| dev->link[link].subordinate = max; |
| set_config_map_reg(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, sysconf.segbit, sysconf.nodes); |
| sysconf.ht_c_num++; |
| |
| { |
| // config config_reg, and ht_unitid_base to update hcdn_reg; |
| u32 temp = 0; |
| for(i=0;i<4;i++) { |
| temp |= (ht_unitid_base[i] & 0xff) << (i*8); |
| } |
| |
| sysconf.hcdn_reg[ht_c_index] = temp; |
| |
| } |
| |
| store_ht_c_conf_bus(nodeid, link, ht_c_index, dev->link[link].secondary, dev->link[link].subordinate, &sysconf); |
| |
| |
| return max; |
| } |
| |
| static u32 amdfam10_scan_chains(device_t dev, u32 max) |
| { |
| u32 nodeid; |
| u32 link; |
| u32 sblink = sysconf.sblk; |
| u32 offset_unitid = 0; |
| |
| nodeid = amdfam10_nodeid(dev); |
| |
| |
| // Put sb chain in bus 0 |
| #if SB_HT_CHAIN_ON_BUS0 > 0 |
| if(nodeid==0) { |
| #if ((HT_CHAIN_UNITID_BASE != 1) || (HT_CHAIN_END_UNITID_BASE != 0x20)) |
| offset_unitid = 1; |
| #endif |
| max = amdfam10_scan_chain(dev, nodeid, sblink, sblink, max, offset_unitid ); // do sb ht chain at first, in case s2885 put sb chain (8131/8111) on link2, but put 8151 on link0 |
| } |
| #endif |
| |
| |
| #if PCI_BUS_SEGN_BITS |
| max = check_segn(dev, max, sysconf.nodes, &sysconf); |
| #endif |
| |
| |
| for(link = 0; link < dev->links; link++) { |
| #if SB_HT_CHAIN_ON_BUS0 > 0 |
| if( (nodeid == 0) && (sblink == link) ) continue; //already done |
| #endif |
| offset_unitid = 0; |
| #if ((HT_CHAIN_UNITID_BASE != 1) || (HT_CHAIN_END_UNITID_BASE != 0x20)) |
| #if SB_HT_CHAIN_UNITID_OFFSET_ONLY == 1 |
| if((nodeid == 0) && (sblink == link)) |
| #endif |
| offset_unitid = 1; |
| #endif |
| |
| max = amdfam10_scan_chain(dev, nodeid, link, sblink, max, offset_unitid); |
| } |
| return max; |
| } |
| |
| |
| static int reg_useable(u32 reg,device_t goal_dev, u32 goal_nodeid, |
| u32 goal_link) |
| { |
| struct resource *res; |
| u32 nodeid, link; |
| int result; |
| res = 0; |
| for(nodeid = 0; !res && (nodeid < NODE_NUMS); nodeid++) { |
| device_t dev; |
| dev = __f0_dev[nodeid]; |
| if (!dev) |
| continue; |
| for(link = 0; !res && (link < 8); link++) { |
| res = probe_resource(dev, 0x1000 + reg + (link<<16)); // 8 links, 0x1000 man f1, |
| } |
| } |
| result = 2; |
| if (res) { |
| result = 0; |
| if ( (goal_link == (link - 1)) && |
| (goal_nodeid == (nodeid - 1)) && |
| (res->flags <= 1)) { |
| result = 1; |
| } |
| } |
| return result; |
| } |
| |
| static struct resource *amdfam10_find_iopair(device_t dev, u32 nodeid, u32 link) |
| { |
| struct resource *resource; |
| u32 free_reg, reg; |
| resource = 0; |
| free_reg = 0; |
| for(reg = 0xc0; reg <= 0xd8; reg += 0x8) { |
| int result; |
| result = reg_useable(reg, dev, nodeid, link); |
| if (result == 1) { |
| /* I have been allocated this one */ |
| break; |
| } |
| else if (result > 1) { |
| /* I have a free register pair */ |
| free_reg = reg; |
| } |
| } |
| if (reg > 0xd8) { |
| reg = free_reg; // if no free, the free_reg still be 0 |
| } |
| |
| //Ext conf space |
| if(!reg) { |
| //because of Extend conf space, we will never run out of reg, but we need one index to differ them. so same node and same link can have multi range |
| u32 index = get_io_addr_index(nodeid, link); |
| reg = 0x110+ (index<<24) + (4<<20); // index could be 0, 255 |
| } |
| |
| resource = new_resource(dev, 0x1000 + reg + (link<<16)); |
| |
| return resource; |
| } |
| |
| static struct resource *amdfam10_find_mempair(device_t dev, u32 nodeid, u32 link) |
| { |
| struct resource *resource; |
| u32 free_reg, reg; |
| resource = 0; |
| free_reg = 0; |
| for(reg = 0x80; reg <= 0xb8; reg += 0x8) { |
| int result; |
| result = reg_useable(reg, dev, nodeid, link); |
| if (result == 1) { |
| /* I have been allocated this one */ |
| break; |
| } |
| else if (result > 1) { |
| /* I have a free register pair */ |
| free_reg = reg; |
| } |
| } |
| if (reg > 0xb8) { |
| reg = free_reg; |
| } |
| |
| //Ext conf space |
| if(!reg) { |
| //because of Extend conf space, we will never run out of reg, |
| // but we need one index to differ them. so same node and |
| // same link can have multi range |
| u32 index = get_mmio_addr_index(nodeid, link); |
| reg = 0x110+ (index<<24) + (6<<20); // index could be 0, 63 |
| |
| } |
| resource = new_resource(dev, 0x1000 + reg + (link<<16)); |
| return resource; |
| } |
| |
| |
| static void amdfam10_link_read_bases(device_t dev, u32 nodeid, u32 link) |
| { |
| struct resource *resource; |
| |
| /* Initialize the io space constraints on the current bus */ |
| resource = amdfam10_find_iopair(dev, nodeid, link); |
| if (resource) { |
| u32 align; |
| #if EXT_CONF_SUPPORT == 1 |
| if((resource->index & 0x1fff) == 0x1110) { // ext |
| align = 8; |
| } |
| else |
| #endif |
| align = log2(HT_IO_HOST_ALIGN); |
| resource->base = 0; |
| resource->size = 0; |
| resource->align = align; |
| resource->gran = align; |
| resource->limit = 0xffffUL; |
| resource->flags = IORESOURCE_IO; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_IO, IORESOURCE_IO); |
| } |
| |
| /* Initialize the prefetchable memory constraints on the current bus */ |
| resource = amdfam10_find_mempair(dev, nodeid, link); |
| if (resource) { |
| resource->base = 0; |
| resource->size = 0; |
| resource->align = log2(HT_MEM_HOST_ALIGN); |
| resource->gran = log2(HT_MEM_HOST_ALIGN); |
| resource->limit = 0xffffffffffULL; |
| resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH); |
| |
| #if EXT_CONF_SUPPORT == 1 |
| if((resource->index & 0x1fff) == 0x1110) { // ext |
| normalize_resource(resource); |
| } |
| #endif |
| |
| } |
| |
| /* Initialize the memory constraints on the current bus */ |
| resource = amdfam10_find_mempair(dev, nodeid, link); |
| if (resource) { |
| resource->base = 0; |
| resource->size = 0; |
| resource->align = log2(HT_MEM_HOST_ALIGN); |
| resource->gran = log2(HT_MEM_HOST_ALIGN); |
| resource->limit = 0xffffffffffULL; |
| resource->flags = IORESOURCE_MEM; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH, |
| IORESOURCE_MEM); |
| |
| #if EXT_CONF_SUPPORT == 1 |
| if((resource->index & 0x1fff) == 0x1110) { // ext |
| normalize_resource(resource); |
| } |
| #endif |
| |
| } |
| } |
| |
| |
| static void amdfam10_read_resources(device_t dev) |
| { |
| u32 nodeid, link; |
| |
| nodeid = amdfam10_nodeid(dev); |
| for(link = 0; link < dev->links; link++) { |
| if (dev->link[link].children) { |
| amdfam10_link_read_bases(dev, nodeid, link); |
| } |
| } |
| } |
| |
| |
| static void amdfam10_set_resource(device_t dev, struct resource *resource, |
| u32 nodeid) |
| { |
| resource_t rbase, rend; |
| unsigned reg, link; |
| char buf[50]; |
| |
| /* Make certain the resource has actually been set */ |
| if (!(resource->flags & IORESOURCE_ASSIGNED)) { |
| return; |
| } |
| |
| /* If I have already stored this resource don't worry about it */ |
| if (resource->flags & IORESOURCE_STORED) { |
| return; |
| } |
| |
| /* Only handle PCI memory and IO resources */ |
| if (!(resource->flags & (IORESOURCE_MEM | IORESOURCE_IO))) |
| return; |
| |
| /* Ensure I am actually looking at a resource of function 1 */ |
| if ((resource->index & 0xffff) < 0x1000) { |
| return; |
| } |
| /* Get the base address */ |
| rbase = resource->base; |
| |
| /* Get the limit (rounded up) */ |
| rend = resource_end(resource); |
| |
| /* Get the register and link */ |
| reg = resource->index & 0xfff; // 4k |
| link = ( resource->index>> 16)& 0x7; // 8 links |
| |
| if (resource->flags & IORESOURCE_IO) { |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_IO, IORESOURCE_IO); |
| |
| set_io_addr_reg(dev, nodeid, link, reg, rbase>>8, rend>>8); |
| store_conf_io_addr(nodeid, link, reg, (resource->index >> 24), rbase>>8, rend>>8); |
| } |
| else if (resource->flags & IORESOURCE_MEM) { |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH, |
| resource->flags & (IORESOURCE_MEM | IORESOURCE_PREFETCH)); |
| set_mmio_addr_reg(nodeid, link, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8] |
| store_conf_mmio_addr(nodeid, link, reg, (resource->index >>24), rbase>>8, rend>>8); |
| } |
| resource->flags |= IORESOURCE_STORED; |
| sprintf(buf, " <node %02x link %02x>", |
| nodeid, link); |
| report_resource_stored(dev, resource, buf); |
| } |
| |
| /** |
| * |
| * I tried to reuse the resource allocation code in amdfam10_set_resource() |
| * but it is too diffcult to deal with the resource allocation magic. |
| */ |
| #if CONFIG_CONSOLE_VGA_MULTI == 1 |
| extern device_t vga_pri; // the primary vga device, defined in device.c |
| #endif |
| |
| static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid) |
| { |
| unsigned link; |
| |
| /* find out which link the VGA card is connected, |
| * we only deal with the 'first' vga card */ |
| for (link = 0; link < dev->links; link++) { |
| if (dev->link[link].bridge_ctrl & PCI_BRIDGE_CTL_VGA) { |
| #if CONFIG_CONSOLE_VGA_MULTI == 1 |
| printk_debug("VGA: vga_pri bus num = %d dev->link[link] bus range [%d,%d]\n", vga_pri->bus->secondary, |
| dev->link[link].secondary,dev->link[link].subordinate); |
| /* We need to make sure the vga_pri is under the link */ |
| if((vga_pri->bus->secondary >= dev->link[link].secondary ) && |
| (vga_pri->bus->secondary <= dev->link[link].subordinate ) |
| ) |
| #endif |
| break; |
| } |
| } |
| |
| /* no VGA card installed */ |
| if (link == dev->links) |
| return; |
| |
| printk_debug("VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link); |
| set_vga_enable_reg(nodeid, link); |
| } |
| |
| static void amdfam10_set_resources(device_t dev) |
| { |
| u32 nodeid, link; |
| int i; |
| |
| /* Find the nodeid */ |
| nodeid = amdfam10_nodeid(dev); |
| |
| amdfam10_create_vga_resource(dev, nodeid); |
| |
| /* Set each resource we have found */ |
| for(i = 0; i < dev->resources; i++) { |
| amdfam10_set_resource(dev, &dev->resource[i], nodeid); |
| } |
| |
| for(link = 0; link < dev->links; link++) { |
| struct bus *bus; |
| bus = &dev->link[link]; |
| if (bus->children) { |
| assign_resources(bus); |
| } |
| } |
| } |
| |
| |
| static void amdfam10_enable_resources(device_t dev) |
| { |
| pci_dev_enable_resources(dev); |
| enable_childrens_resources(dev); |
| } |
| |
| static void mcf0_control_init(struct device *dev) |
| { |
| } |
| |
| static struct device_operations northbridge_operations = { |
| .read_resources = amdfam10_read_resources, |
| .set_resources = amdfam10_set_resources, |
| .enable_resources = amdfam10_enable_resources, |
| .init = mcf0_control_init, |
| .scan_bus = amdfam10_scan_chains, |
| .enable = 0, |
| .ops_pci = 0, |
| }; |
| |
| |
| static struct pci_driver mcf0_driver __pci_driver = { |
| .ops = &northbridge_operations, |
| .vendor = PCI_VENDOR_ID_AMD, |
| .device = 0x1200, |
| }; |
| |
| struct chip_operations northbridge_amd_amdfam10_ops = { |
| CHIP_NAME("AMD FAM10 Northbridge") |
| .enable_dev = 0, |
| }; |
| |
| static void pci_domain_read_resources(device_t dev) |
| { |
| struct resource *resource; |
| unsigned reg; |
| unsigned link; |
| |
| /* Find the already assigned resource pairs */ |
| get_fx_devs(); |
| for(reg = 0x80; reg <= 0xd8; reg+= 0x08) { |
| u32 base, limit; |
| base = f1_read_config32(reg); |
| limit = f1_read_config32(reg + 0x04); |
| /* Is this register allocated? */ |
| if ((base & 3) != 0) { |
| unsigned nodeid, link; |
| device_t dev; |
| if(reg<0xc0) { // mmio |
| nodeid = (limit & 0xf) + (base&0x30); |
| } else { // io |
| nodeid = (limit & 0xf) + ((base>>4)&0x30); |
| } |
| link = (limit >> 4) & 7; |
| dev = __f0_dev[nodeid]; |
| if (dev) { |
| /* Reserve the resource */ |
| struct resource *resource; |
| resource = new_resource(dev, 0x1000 + reg + (link<<16)); |
| if (resource) { |
| resource->flags = 1; |
| } |
| } |
| } |
| } |
| /* FIXME: do we need to check extend conf space? |
| I don't believe that much preset value */ |
| |
| #if CONFIG_PCI_64BIT_PREF_MEM == 0 |
| /* Initialize the system wide io space constraints */ |
| resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0)); |
| resource->base = 0x400; |
| resource->limit = 0xffffUL; |
| resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| |
| /* Initialize the system wide memory resources constraints */ |
| resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0)); |
| resource->limit = 0xfcffffffffULL; |
| resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; |
| #else |
| for(link=0; link<dev->links; link++) { |
| /* Initialize the system wide io space constraints */ |
| resource = new_resource(dev, 0|(link<<2)); |
| resource->base = 0x400; |
| resource->limit = 0xffffUL; |
| resource->flags = IORESOURCE_IO; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_IO, IORESOURCE_IO); |
| |
| /* Initialize the system wide prefetchable memory resources constraints */ |
| resource = new_resource(dev, 1|(link<<2)); |
| resource->limit = 0xfcffffffffULL; |
| resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH); |
| |
| /* Initialize the system wide memory resources constraints */ |
| resource = new_resource(dev, 2|(link<<2)); |
| resource->limit = 0xfcffffffffULL; |
| resource->flags = IORESOURCE_MEM; |
| compute_allocate_resource(&dev->link[link], resource, |
| IORESOURCE_MEM | IORESOURCE_PREFETCH, |
| IORESOURCE_MEM); |
| } |
| #endif |
| } |
| |
| static void ram_resource(device_t dev, unsigned long index, |
| resource_t basek, resource_t sizek) |
| { |
| struct resource *resource; |
| |
| if (!sizek) { |
| return; |
| } |
| resource = new_resource(dev, index); |
| resource->base = basek << 10; |
| resource->size = sizek << 10; |
| resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \ |
| IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; |
| } |
| |
| static void tolm_test(void *gp, struct device *dev, struct resource *new) |
| { |
| struct resource **best_p = gp; |
| struct resource *best; |
| best = *best_p; |
| if (!best || (best->base > new->base)) { |
| best = new; |
| } |
| *best_p = best; |
| } |
| |
| static u32 find_pci_tolm(struct bus *bus, u32 tolm) |
| { |
| struct resource *min; |
| min = 0; |
| search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min); |
| if (min && tolm > min->base) { |
| tolm = min->base; |
| } |
| return tolm; |
| } |
| |
| #if CONFIG_PCI_64BIT_PREF_MEM == 1 |
| #define BRIDGE_IO_MASK (IORESOURCE_IO | IORESOURCE_MEM | IORESOURCE_PREFETCH) |
| #endif |
| |
| #if HW_MEM_HOLE_SIZEK != 0 |
| |
| struct hw_mem_hole_info { |
| unsigned hole_startk; |
| int node_id; |
| }; |
| |
| static struct hw_mem_hole_info get_hw_mem_hole_info(void) |
| { |
| struct hw_mem_hole_info mem_hole; |
| int i; |
| |
| mem_hole.hole_startk = HW_MEM_HOLE_SIZEK; |
| mem_hole.node_id = -1; |
| |
| for (i = 0; i < sysconf.nodes; i++) { |
| struct dram_base_mask_t d; |
| u32 hole; |
| d = get_dram_base_mask(i); |
| if(!(d.mask & 1)) continue; // no memory on this node |
| |
| hole = pci_read_config32(__f1_dev[i], 0xf0); |
| if(hole & 1) { // we find the hole |
| mem_hole.hole_startk = (hole & (0xff<<24)) >> 10; |
| mem_hole.node_id = i; // record the node No with hole |
| break; // only one hole |
| } |
| } |
| |
| //We need to double check if there is speical set on base reg and limit reg are not continous instead of hole, it will find out it's hole_startk |
| if(mem_hole.node_id==-1) { |
| resource_t limitk_pri = 0; |
| for(i=0; i<sysconf.nodes; i++) { |
| struct dram_base_mask_t d; |
| resource_t base_k, limit_k; |
| d = get_dram_base_mask(i); |
| if(!(d.base & 1)) continue; |
| |
| base_k = ((resource_t)(d.base & 0x1fffff00)) <<9; |
| if(base_k > 4 *1024 * 1024) break; // don't need to go to check |
| if(limitk_pri != base_k) { // we find the hole |
| mem_hole.hole_startk = (unsigned)limitk_pri; // must beblow 4G |
| mem_hole.node_id = i; |
| break; //only one hole |
| } |
| |
| limit_k = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9; |
| limitk_pri = limit_k; |
| } |
| } |
| return mem_hole; |
| } |
| |
| |
| #if CONFIG_AMDMCT == 0 |
| static void disable_hoist_memory(unsigned long hole_startk, int i) |
| { |
| int ii; |
| device_t dev; |
| struct dram_base_mask_t d; |
| u32 sel_m; |
| u32 sel_hi_en; |
| u32 hoist; |
| u32 hole_sizek; |
| |
| u32 one_DCT; |
| struct sys_info *sysinfox = (struct sys_info *)((CONFIG_LB_MEM_TOPK<<10) - DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM |
| struct mem_info *meminfo; |
| meminfo = &sysinfox->meminfo[i]; |
| |
| one_DCT = get_one_DCT(meminfo); |
| |
| // 1. find which node has hole |
| // 2. change limit in that node. |
| // 3. change base and limit in later node |
| // 4. clear that node f0 |
| |
| // if there is not mem hole enabled, we need to change it's base instead |
| |
| hole_sizek = (4*1024*1024) - hole_startk; |
| |
| for(ii=NODE_NUMS-1;ii>i;ii--) { |
| |
| d = get_dram_base_mask(ii); |
| |
| if(!(d.mask & 1)) continue; |
| |
| d.base -= (hole_sizek>>9); |
| d.mask -= (hole_sizek>>9); |
| set_dram_base_mask(ii, d, sysconf.nodes); |
| |
| if(get_DctSelHiEn(ii) & 1) { |
| sel_m = get_DctSelBaseAddr(ii); |
| sel_m -= hole_startk>>10; |
| set_DctSelBaseAddr(ii, sel_m); |
| } |
| } |
| |
| d = get_dram_base_mask(i); |
| dev = __f1_dev[i]; |
| hoist = pci_read_config32(dev, 0xf0); |
| sel_hi_en = get_DctSelHiEn(i); |
| |
| if(sel_hi_en & 1) { |
| sel_m = get_DctSelBaseAddr(i); |
| } |
| |
| if(hoist & 1) { |
| pci_write_config32(dev, 0xf0, 0); |
| d.mask -= (hole_sizek>>9); |
| set_dram_base_mask(i, d, sysconf.nodes); |
| if(one_DCT || (sel_m >= (hole_startk>>10))) { |
| if(sel_hi_en & 1) { |
| sel_m -= hole_startk>>10; |
| set_DctSelBaseAddr(i, sel_m); |
| } |
| } |
| if(sel_hi_en & 1) { |
| set_DctSelBaseOffset(i, 0); |
| } |
| } |
| else { |
| d.base -= (hole_sizek>>9); |
| d.mask -= (hole_sizek>>9); |
| set_dram_base_mask(i, d, sysconf.nodes); |
| |
| if(sel_hi_en & 1) { |
| sel_m -= hole_startk>>10; |
| set_DctSelBaseAddr(i, sel_m); |
| } |
| } |
| |
| } |
| #endif |
| |
| #endif |
| |
| static void pci_domain_set_resources(device_t dev) |
| { |
| #if CONFIG_PCI_64BIT_PREF_MEM == 1 |
| struct resource *io, *mem1, *mem2; |
| struct resource *resource, *last; |
| #endif |
| unsigned long mmio_basek; |
| u32 pci_tolm; |
| int i, idx; |
| u32 link; |
| #if HW_MEM_HOLE_SIZEK != 0 |
| struct hw_mem_hole_info mem_hole; |
| u32 reset_memhole = 1; |
| #endif |
| |
| #if CONFIG_PCI_64BIT_PREF_MEM == 1 |
| |
| for(link=0; link<dev->links; link++) { |
| /* Now reallocate the pci resources memory with the |
| * highest addresses I can manage. |
| */ |
| mem1 = find_resource(dev, 1|(link<<2)); |
| mem2 = find_resource(dev, 2|(link<<2)); |
| |
| printk_debug("base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n", |
| mem1->base, mem1->limit, mem1->size, mem1->align); |
| printk_debug("base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n", |
| mem2->base, mem2->limit, mem2->size, mem2->align); |
| |
| /* See if both resources have roughly the same limits */ |
| if (((mem1->limit <= 0xffffffff) && (mem2->limit <= 0xffffffff)) || |
| ((mem1->limit > 0xffffffff) && (mem2->limit > 0xffffffff))) |
| { |
| /* If so place the one with the most stringent alignment first |
| */ |
| if (mem2->align > mem1->align) { |
| struct resource *tmp; |
| tmp = mem1; |
| mem1 = mem2; |
| mem2 = tmp; |
| } |
| /* Now place the memory as high up as it will go */ |
| mem2->base = resource_max(mem2); |
| mem1->limit = mem2->base - 1; |
| mem1->base = resource_max(mem1); |
| } |
| else { |
| /* Place the resources as high up as they will go */ |
| mem2->base = resource_max(mem2); |
| mem1->base = resource_max(mem1); |
| } |
| |
| printk_debug("base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n", |
| mem1->base, mem1->limit, mem1->size, mem1->align); |
| printk_debug("base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n", |
| mem2->base, mem2->limit, mem2->size, mem2->align); |
| } |
| |
| last = &dev->resource[dev->resources]; |
| for(resource = &dev->resource[0]; resource < last; resource++) |
| { |
| resource->flags |= IORESOURCE_ASSIGNED; |
| resource->flags &= ~IORESOURCE_STORED; |
| link = (resource>>2) & 3; |
| compute_allocate_resource(&dev->link[link], resource, |
| BRIDGE_IO_MASK, resource->flags & BRIDGE_IO_MASK); |
| |
| resource->flags |= IORESOURCE_STORED; |
| report_resource_stored(dev, resource, ""); |
| |
| } |
| #endif |
| |
| pci_tolm = 0xffffffffUL; |
| for(link=0;link<dev->links; link++) { |
| pci_tolm = find_pci_tolm(&dev->link[link], pci_tolm); |
| } |
| |
| #warning "FIXME handle interleaved nodes" |
| mmio_basek = pci_tolm >> 10; |
| /* Round mmio_basek to something the processor can support */ |
| mmio_basek &= ~((1 << 6) -1); |
| |
| #warning "FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M MMIO hole" |
| /* Round the mmio hold to 64M */ |
| mmio_basek &= ~((64*1024) - 1); |
| |
| #if HW_MEM_HOLE_SIZEK != 0 |
| /* if the hw mem hole is already set in raminit stage, here we will compare |
| * mmio_basek and hole_basek. if mmio_basek is bigger that hole_basek and will |
| * use hole_basek as mmio_basek and we don't need to reset hole. |
| * otherwise We reset the hole to the mmio_basek |
| */ |
| |
| mem_hole = get_hw_mem_hole_info(); |
| |
| // Use hole_basek as mmio_basek, and we don't need to reset hole anymore |
| if ((mem_hole.node_id != -1) && (mmio_basek > mem_hole.hole_startk)) { |
| mmio_basek = mem_hole.hole_startk; |
| reset_memhole = 0; |
| } |
| |
| #if CONFIG_AMDMCT == 0 |
| //mmio_basek = 3*1024*1024; // for debug to meet boundary |
| |
| if(reset_memhole) { |
| if(mem_hole.node_id!=-1) { |
| /* We need to select HW_MEM_HOLE_SIZEK for raminit, it can not |
| make hole_startk to some basek too! |
| We need to reset our Mem Hole, because We want more big HOLE |
| than we already set |
| Before that We need to disable mem hole at first, becase |
| memhole could already be set on i+1 instead |
| */ |
| disable_hoist_memory(mem_hole.hole_startk, mem_hole.node_id); |
| } |
| |
| #if HW_MEM_HOLE_SIZE_AUTO_INC == 1 |
| // We need to double check if the mmio_basek is valid for hole |
| // setting, if it is equal to basek, we need to decrease it some |
| resource_t basek_pri; |
| for (i = 0; i < sysconf.nodes; i++) { |
| struct dram_base_mask_t d; |
| resource_t basek; |
| d = get_dram_base_mask(i); |
| |
| if(!(d.mask &1)) continue; |
| |
| basek = ((resource_t)(d.base & 0x1fffff00)) << 9; |
| if(mmio_basek == (u32)basek) { |
| mmio_basek -= (uin32_t)(basek - basek_pri); // increase mem hole size to make sure it is on middle of pri node |
| break; |
| } |
| basek_pri = basek; |
| } |
| #endif |
| } |
| #endif |
| |
| |
| #endif |
| |
| idx = 0x10; |
| for(i = 0; i < sysconf.nodes; i++) { |
| struct dram_base_mask_t d; |
| resource_t basek, limitk, sizek; // 4 1T |
| d = get_dram_base_mask(i); |
| |
| if(!(d.mask & 1)) continue; |
| basek = ((resource_t)(d.base & 0x1fffff00)) << 9; // could overflow, we may lost 6 bit here |
| limitk = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9 ; |
| sizek = limitk - basek; |
| |
| /* see if we need a hole from 0xa0000 to 0xbffff */ |
| if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) { |
| ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek); |
| idx += 0x10; |
| basek = (8*64)+(16*16); |
| sizek = limitk - ((8*64)+(16*16)); |
| |
| } |
| |
| // printk_debug("node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk); |
| |
| /* split the region to accomodate pci memory space */ |
| if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) { |
| if (basek <= mmio_basek) { |
| unsigned pre_sizek; |
| pre_sizek = mmio_basek - basek; |
| if(pre_sizek>0) { |
| ram_resource(dev, (idx | i), basek, pre_sizek); |
| idx += 0x10; |
| sizek -= pre_sizek; |
| } |
| #if CONFIG_AMDMCT == 0 |
| #if HW_MEM_HOLE_SIZEK != 0 |
| if(reset_memhole) { |
| struct sys_info *sysinfox = (struct sys_info *)((CONFIG_LB_MEM_TOPK<<10) - DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM |
| struct mem_info *meminfo; |
| meminfo = &sysinfox->meminfo[i]; |
| sizek += hoist_memory(mmio_basek,i, get_one_DCT(meminfo), sysconf.nodes); |
| } |
| #endif |
| #endif |
| |
| basek = mmio_basek; |
| } |
| if ((basek + sizek) <= 4*1024*1024) { |
| sizek = 0; |
| } |
| else { |
| basek = 4*1024*1024; |
| sizek -= (4*1024*1024 - mmio_basek); |
| } |
| } |
| ram_resource(dev, (idx | i), basek, sizek); |
| idx += 0x10; |
| } |
| |
| for(link = 0; link < dev->links; link++) { |
| struct bus *bus; |
| bus = &dev->link[link]; |
| if (bus->children) { |
| assign_resources(bus); |
| } |
| } |
| } |
| |
| static u32 pci_domain_scan_bus(device_t dev, u32 max) |
| { |
| u32 reg; |
| int i; |
| /* Unmap all of the HT chains */ |
| for(reg = 0xe0; reg <= 0xec; reg += 4) { |
| f1_write_config32(reg, 0); |
| } |
| #if EXT_CONF_SUPPORT == 1 |
| // all nodes |
| for(i = 0; i< sysconf.nodes; i++) { |
| int index; |
| for(index = 0; index < 64; index++) { |
| pci_write_config32(__f1_dev[i], 0x110, index | (6<<28)); |
| pci_write_config32(__f1_dev[i], 0x114, 0); |
| } |
| |
| } |
| #endif |
| |
| |
| for(i=0;i<dev->links;i++) { |
| max = pci_scan_bus(&dev->link[i], PCI_DEVFN(CDB, 0), 0xff, max); |
| } |
| |
| /* Tune the hypertransport transaction for best performance. |
| * Including enabling relaxed ordering if it is safe. |
| */ |
| get_fx_devs(); |
| for(i = 0; i < FX_DEVS; i++) { |
| device_t f0_dev; |
| f0_dev = __f0_dev[i]; |
| if (f0_dev && f0_dev->enabled) { |
| u32 httc; |
| httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL); |
| httc &= ~HTTC_RSP_PASS_PW; |
| if (!dev->link[0].disable_relaxed_ordering) { |
| httc |= HTTC_RSP_PASS_PW; |
| } |
| printk_spew("%s passpw: %s\n", |
| dev_path(dev), |
| (!dev->link[0].disable_relaxed_ordering)? |
| "enabled":"disabled"); |
| pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc); |
| } |
| } |
| return max; |
| } |
| |
| static struct device_operations pci_domain_ops = { |
| .read_resources = pci_domain_read_resources, |
| .set_resources = pci_domain_set_resources, |
| .enable_resources = enable_childrens_resources, |
| .init = 0, |
| .scan_bus = pci_domain_scan_bus, |
| #if MMCONF_SUPPORT_DEFAULT |
| .ops_pci_bus = &pci_ops_mmconf, |
| #else |
| .ops_pci_bus = &pci_cf8_conf1, |
| #endif |
| }; |
| |
| static void sysconf_init(device_t dev) // first node |
| { |
| sysconf.sblk = (pci_read_config32(dev, 0x64)>>8) & 7; // don't forget sublink1 |
| sysconf.segbit = 0; |
| sysconf.ht_c_num = 0; |
| |
| unsigned ht_c_index; |
| |
| for(ht_c_index=0; ht_c_index<32; ht_c_index++) { |
| sysconf.ht_c_conf_bus[ht_c_index] = 0; |
| } |
| |
| sysconf.nodes = ((pci_read_config32(dev, 0x60)>>4) & 7) + 1; |
| #if CONFIG_MAX_PHYSICAL_CPUS > 8 |
| sysconf.nodes += (((pci_read_config32(dev, 0x160)>>4) & 7)<<3); |
| #endif |
| |
| sysconf.enabled_apic_ext_id = 0; |
| sysconf.lift_bsp_apicid = 0; |
| |
| /* Find the bootstrap processors apicid */ |
| sysconf.bsp_apicid = lapicid(); |
| sysconf.apicid_offset = sysconf.bsp_apicid; |
| |
| #if (ENABLE_APIC_EXT_ID == 1) |
| if (pci_read_config32(dev, 0x68) & (HTTC_APIC_EXT_ID|HTTC_APIC_EXT_BRD_CST)) |
| { |
| sysconf.enabled_apic_ext_id = 1; |
| } |
| #if (APIC_ID_OFFSET>0) |
| if(sysconf.enabled_apic_ext_id) { |
| if(sysconf.bsp_apicid == 0) { |
| /* bsp apic id is not changed */ |
| sysconf.apicid_offset = APIC_ID_OFFSET; |
| } else { |
| sysconf.lift_bsp_apicid = 1; |
| } |
| |
| } |
| #endif |
| #endif |
| |
| } |
| |
| static u32 cpu_bus_scan(device_t dev, u32 max) |
| { |
| struct bus *cpu_bus; |
| device_t dev_mc; |
| device_t pci_domain; |
| int i,j; |
| int nodes; |
| unsigned nb_cfg_54; |
| unsigned siblings; |
| int cores_found; |
| int disable_siblings; |
| unsigned ApicIdCoreIdSize; |
| |
| nb_cfg_54 = 0; |
| ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf); |
| if(ApicIdCoreIdSize) { |
| siblings = (1<<ApicIdCoreIdSize)-1; |
| } else { |
| siblings = 3; //quad core |
| } |
| |
| disable_siblings = !CONFIG_LOGICAL_CPUS; |
| #if CONFIG_LOGICAL_CPUS == 1 |
| get_option(&disable_siblings, "quad_core"); |
| #endif |
| |
| // for pre_e0, nb_cfg_54 can not be set, ( even set, when you read it |
| // still be 0) |
| // How can I get the nb_cfg_54 of every node' nb_cfg_54 in bsp??? |
| // and differ d0 and e0 single core |
| |
| nb_cfg_54 = read_nb_cfg_54(); |
| |
| #if CBB |
| dev_mc = dev_find_slot(0, PCI_DEVFN(CDB, 0)); //0x00 |
| if(dev_mc && dev_mc->bus) { |
| printk_debug("%s found", dev_path(dev_mc)); |
| pci_domain = dev_mc->bus->dev; |
| if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) { |
| printk_debug("\n%s move to ",dev_path(dev_mc)); |
| dev_mc->bus->secondary = CBB; // move to 0xff |
| printk_debug("%s",dev_path(dev_mc)); |
| |
| } else { |
| printk_debug(" but it is not under pci_domain directly "); |
| } |
| printk_debug("\n"); |
| |
| } |
| dev_mc = dev_find_slot(CBB, PCI_DEVFN(CDB, 0)); |
| if(!dev_mc) { |
| dev_mc = dev_find_slot(0, PCI_DEVFN(0x18, 0)); |
| if (dev_mc && dev_mc->bus) { |
| printk_debug("%s found\n", dev_path(dev_mc)); |
| pci_domain = dev_mc->bus->dev; |
| if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) { |
| if((pci_domain->links==1) && (pci_domain->link[0].children == dev_mc)) { |
| printk_debug("%s move to ",dev_path(dev_mc)); |
| dev_mc->bus->secondary = CBB; // move to 0xff |
| printk_debug("%s\n",dev_path(dev_mc)); |
| while(dev_mc){ |
| printk_debug("%s move to ",dev_path(dev_mc)); |
| dev_mc->path.pci.devfn -= PCI_DEVFN(0x18,0); |
| printk_debug("%s\n",dev_path(dev_mc)); |
| dev_mc = dev_mc->sibling; |
| } |
| } |
| } |
| } |
| } |
| |
| #endif |
| |
| dev_mc = dev_find_slot(CBB, PCI_DEVFN(CDB, 0)); |
| if (!dev_mc) { |
| printk_err("%02x:%02x.0 not found", CBB, CDB); |
| die(""); |
| } |
| |
| sysconf_init(dev_mc); |
| |
| nodes = sysconf.nodes; |
| |
| #if CBB && (NODE_NUMS > 32) |
| if(nodes>32) { // need to put node 32 to node 63 to bus 0xfe |
| if(pci_domain->links==1) { |
| pci_domain->links++; // from 1 to 2 |
| pci_domain->link[1].link = 1; |
| pci_domain->link[1].dev = pci_domain; |
| pci_domain->link[1].children = 0; |
| printk_debug("%s links increase to %d\n", dev_path(pci_domain), pci_domain->links); |
| } |
| pci_domain->link[1].secondary = CBB - 1; |
| } |
| #endif |
| /* Find which cpus are present */ |
| cpu_bus = &dev->link[0]; |
| for(i = 0; i < nodes; i++) { |
| device_t dev, cpu; |
| struct device_path cpu_path; |
| unsigned busn, devn; |
| struct bus *pbus; |
| |
| busn = CBB; |
| devn = CDB+i; |
| pbus = dev_mc->bus; |
| #if CBB && (NODE_NUMS > 32) |
| if(i>=32) { |
| busn--; |
| devn-=32; |
| pbus = &(pci_domain->link[1]); |
| } |
| #endif |
| |
| /* Find the cpu's pci device */ |
| dev = dev_find_slot(busn, PCI_DEVFN(devn, 0)); |
| if (!dev) { |
| /* If I am probing things in a weird order |
| * ensure all of the cpu's pci devices are found. |
| */ |
| int j; |
| for(j = 0; j <= 5; j++) { //FBDIMM? |
| dev = pci_probe_dev(NULL, pbus, |
| PCI_DEVFN(devn, j)); |
| } |
| dev = dev_find_slot(busn, PCI_DEVFN(devn,0)); |
| } |
| if(dev) { |
| /* Ok, We need to set the links for that device. |
| * otherwise the device under it will not be scanned |
| */ |
| int j; |
| int linknum; |
| #if HT3_SUPPORT==1 |
| linknum = 8; |
| #else |
| linknum = 4; |
| #endif |
| if(dev->links < linknum) { |
| for(j=dev->links; j<linknum; j++) { |
| dev->link[j].link = j; |
| dev->link[j].dev = dev; |
| } |
| dev->links = linknum; |
| printk_debug("%s links increase to %d\n", dev_path(dev), dev->links); |
| } |
| } |
| |
| cores_found = 0; // one core |
| dev = dev_find_slot(busn, PCI_DEVFN(devn, 3)); |
| if (dev && dev->enabled) { |
| j = pci_read_config32(dev, 0xe8); |
| cores_found = (j >> 12) & 3; // dev is func 3 |
| printk_debug(" %s siblings=%d\n", dev_path(dev), cores_found); |
| } |
| |
| u32 jj; |
| if(disable_siblings) { |
| jj = 0; |
| } else |
| { |
| jj = cores_found; |
| } |
| |
| for (j = 0; j <=jj; j++ ) { |
| |
| /* Build the cpu device path */ |
| cpu_path.type = DEVICE_PATH_APIC; |
| cpu_path.apic.apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ? |
| |
| /* See if I can find the cpu */ |
| cpu = find_dev_path(cpu_bus, &cpu_path); |
| |
| /* Enable the cpu if I have the processor */ |
| if (dev && dev->enabled) { |
| if (!cpu) { |
| cpu = alloc_dev(cpu_bus, &cpu_path); |
| } |
| if (cpu) { |
| cpu->enabled = 1; |
| } |
| } |
| |
| /* Disable the cpu if I don't have the processor */ |
| if (cpu && (!dev || !dev->enabled)) { |
| cpu->enabled = 0; |
| } |
| |
| /* Report what I have done */ |
| if (cpu) { |
| cpu->path.apic.node_id = i; |
| cpu->path.apic.core_id = j; |
| #if (ENABLE_APIC_EXT_ID == 1) && (APIC_ID_OFFSET>0) |
| if(sysconf.enabled_apic_ext_id) { |
| if(sysconf.lift_bsp_apicid) { |
| cpu->path.apic.apic_id += sysconf.apicid_offset; |
| } else |
| { |
| if (cpu->path.apic.apic_id != 0) |
| cpu->path.apic.apic_id += sysconf.apicid_offset; |
| } |
| } |
| #endif |
| printk_debug("CPU: %s %s\n", |
| dev_path(cpu), cpu->enabled?"enabled":"disabled"); |
| } |
| |
| } //j |
| } |
| return max; |
| } |
| |
| |
| static void cpu_bus_init(device_t dev) |
| { |
| initialize_cpus(&dev->link[0]); |
| } |
| |
| |
| static void cpu_bus_noop(device_t dev) |
| { |
| } |
| |
| |
| static struct device_operations cpu_bus_ops = { |
| .read_resources = cpu_bus_noop, |
| .set_resources = cpu_bus_noop, |
| .enable_resources = cpu_bus_noop, |
| .init = cpu_bus_init, |
| .scan_bus = cpu_bus_scan, |
| }; |
| |
| |
| static void root_complex_enable_dev(struct device *dev) |
| { |
| /* Set the operations if it is a special bus type */ |
| if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) { |
| dev->ops = &pci_domain_ops; |
| } |
| else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) { |
| dev->ops = &cpu_bus_ops; |
| } |
| } |
| |
| struct chip_operations northbridge_amd_amdfam10_root_complex_ops = { |
| CHIP_NAME("AMD FAM10 Root Complex") |
| .enable_dev = root_complex_enable_dev, |
| }; |