2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <console/console.h>
23 #include <device/device.h>
24 #include <device/pci.h>
25 #include <device/pci_ids.h>
26 #include <device/hypertransport.h>
32 #include <cpu/x86/lapic.h>
34 #if CONFIG_LOGICAL_CPUS==1
35 #include <cpu/amd/multicore.h>
36 #include <pc80/mc146818rtc.h>
40 #include "root_complex/chip.h"
41 #include "northbridge.h"
45 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
46 #include <cpu/amd/model_10xxx_rev.h>
49 #include <cpu/amd/amdfam10_sysconf.h>
51 struct amdfam10_sysconf_t sysconf;
53 #define FX_DEVS NODE_NUMS
54 static device_t __f0_dev[FX_DEVS];
55 static device_t __f1_dev[FX_DEVS];
56 static device_t __f2_dev[FX_DEVS];
57 static device_t __f4_dev[FX_DEVS];
58 static unsigned fx_devs=0;
60 device_t get_node_pci(u32 nodeid, u32 fn)
64 return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
66 return dev_find_slot(CONFIG_CBB-1, PCI_DEVFN(CONFIG_CDB + nodeid - 32, fn));
70 return dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB + nodeid, fn));
74 static void get_fx_devs(void)
77 for(i = 0; i < FX_DEVS; i++) {
78 __f0_dev[i] = get_node_pci(i, 0);
79 __f1_dev[i] = get_node_pci(i, 1);
80 __f2_dev[i] = get_node_pci(i, 2);
81 __f4_dev[i] = get_node_pci(i, 4);
82 if (__f0_dev[i] != NULL && __f1_dev[i] != NULL)
85 if (__f1_dev[0] == NULL || __f0_dev[0] == NULL || fx_devs == 0) {
86 die("Cannot find 0:0x18.[0|1]\n");
90 static u32 f1_read_config32(unsigned reg)
94 return pci_read_config32(__f1_dev[0], reg);
97 static void f1_write_config32(unsigned reg, u32 value)
102 for(i = 0; i < fx_devs; i++) {
105 if (dev && dev->enabled) {
106 pci_write_config32(dev, reg, value);
111 static u32 amdfam10_nodeid(device_t dev)
115 busn = dev->bus->secondary;
116 if(busn != CONFIG_CBB) {
117 return (dev->path.pci.devfn >> 3) - CONFIG_CDB + 32;
119 return (dev->path.pci.devfn >> 3) - CONFIG_CDB;
123 return (dev->path.pci.devfn >> 3) - CONFIG_CDB;
127 #include "amdfam10_conf.c"
129 static void set_vga_enable_reg(u32 nodeid, u32 linkn)
133 val = 1 | (nodeid<<4) | (linkn<<12);
134 /* it will routing (1)mmio 0xa0000:0xbffff (2) io 0x3b0:0x3bb,
136 f1_write_config32(0xf4, val);
140 static u32 amdfam10_scan_chain(device_t dev, u32 nodeid, struct bus *link, u32 link_num, u32 sblink,
141 u32 max, u32 offset_unitid)
143 // I want to put sb chain in bus 0 can I?
149 u32 ht_unitid_base[4]; // here assume only 4 HT device on chain
152 u32 is_sublink1 = (link_num>3);
156 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1
161 #if CONFIG_HT3_SUPPORT==1
165 regpos = 0x170 + 4 * (link_num&3); // it is only on sublink0
166 reg = pci_read_config32(dev, regpos);
167 if(reg & 1) return max; // already ganged no sblink1
168 devx = get_node_pci(nodeid, 4);
174 link->cap = 0x80 + ((link_num&3) *0x20);
176 link_type = pci_read_config32(devx, link->cap + 0x18);
177 } while(link_type & ConnectionPending);
178 if (!(link_type & LinkConnected)) {
182 link_type = pci_read_config32(devx, link->cap + 0x18);
183 } while(!(link_type & InitComplete));
184 if (!(link_type & NonCoherent)) {
187 /* See if there is an available configuration space mapping
188 * register in function 1.
190 ht_c_index = get_ht_c_index(nodeid, link_num, &sysconf);
192 #if CONFIG_EXT_CONF_SUPPORT == 0
193 if(ht_c_index>=4) return max;
196 /* Set up the primary, secondary and subordinate bus numbers.
197 * We have no idea how many busses are behind this bridge yet,
198 * so we set the subordinate bus number to 0xff for the moment.
200 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
201 // first chain will on bus 0
202 if((nodeid == 0) && (sblink==link_num)) { // actually max is 0 here
205 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 1
206 // second chain will be on 0x40, third 0x80, forth 0xc0
207 // i would refined that to 2, 3, 4 ==> 0, 0x, 40, 0x80, 0xc0
208 // >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.
210 min_bus = ((busn>>3) + 1) << 3; // one node can have 8 link and segn is the same
212 max = min_bus | (segn<<8);
222 max_bus = 0xfc | (segn<<8);
224 link->secondary = min_bus;
225 link->subordinate = max_bus;
227 /* Read the existing primary/secondary/subordinate bus
228 * number configuration.
230 busses = pci_read_config32(devx, link->cap + 0x14);
232 /* Configure the bus numbers for this bridge: the configuration
233 * transactions will not be propagates by the bridge if it is
234 * not correctly configured
236 busses &= 0xffff00ff;
237 busses |= ((u32)(link->secondary) << 8);
238 pci_write_config32(devx, link->cap + 0x14, busses);
241 /* set the config map space */
243 set_config_map_reg(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
245 /* Now we can scan all of the subordinate busses i.e. the
246 * chain on the hypertranport link
249 ht_unitid_base[i] = 0x20;
252 //if ext conf is enabled, only need use 0x1f
254 max_devfn = (0x17<<3) | 7;
256 max_devfn = (0x1f<<3) | 7;
258 max = hypertransport_scan_chain(link, 0, max_devfn, max, ht_unitid_base, offset_unitid);
260 /* We know the number of busses behind this bridge. Set the
261 * subordinate bus number to it's real value
263 if(ht_c_index>3) { // clear the extend reg
264 clear_config_map_reg(nodeid, link_num, ht_c_index, (max+1)>>sysconf.segbit, (link->subordinate)>>sysconf.segbit, sysconf.nodes);
267 link->subordinate = max;
268 set_config_map_reg(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, sysconf.segbit, sysconf.nodes);
272 // use ht_unitid_base to update hcdn_reg
275 temp |= (ht_unitid_base[i] & 0xff) << (i*8);
278 sysconf.hcdn_reg[ht_c_index] = temp;
281 store_ht_c_conf_bus(nodeid, link_num, ht_c_index, link->secondary, link->subordinate, &sysconf);
285 static unsigned amdfam10_scan_chains(device_t dev, unsigned max)
289 unsigned sblink = sysconf.sblk;
290 unsigned offset_unitid = 0;
292 nodeid = amdfam10_nodeid(dev);
294 // Put sb chain in bus 0
295 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
297 #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
300 for (link = dev->link_list; link; link = link->next)
301 if (link->link_num == sblink)
302 max = amdfam10_scan_chain(dev, nodeid, link, 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
306 #if CONFIG_PCI_BUS_SEGN_BITS
307 max = check_segn(dev, max, sysconf.nodes, &sysconf);
310 for(link = dev->link_list; link; link = link->next) {
311 #if CONFIG_SB_HT_CHAIN_ON_BUS0 > 0
312 if( (nodeid == 0) && (sblink == link->link_num) ) continue; //already done
315 #if ((CONFIG_HT_CHAIN_UNITID_BASE != 1) || (CONFIG_HT_CHAIN_END_UNITID_BASE != 0x20))
316 #if CONFIG_SB_HT_CHAIN_UNITID_OFFSET_ONLY == 1
317 if((nodeid == 0) && (sblink == link->link_num))
322 max = amdfam10_scan_chain(dev, nodeid, link, link->link_num, sblink, max, offset_unitid);
328 static int reg_useable(unsigned reg, device_t goal_dev, unsigned goal_nodeid,
331 struct resource *res;
332 unsigned nodeid, link = 0;
335 for(nodeid = 0; !res && (nodeid < fx_devs); nodeid++) {
337 dev = __f0_dev[nodeid];
340 for(link = 0; !res && (link < 8); link++) {
341 res = probe_resource(dev, IOINDEX(0x1000 + reg, link));
347 if ( (goal_link == (link - 1)) &&
348 (goal_nodeid == (nodeid - 1)) &&
356 static struct resource *amdfam10_find_iopair(device_t dev, unsigned nodeid, unsigned link)
358 struct resource *resource;
362 for(reg = 0xc0; reg <= 0xd8; reg += 0x8) {
364 result = reg_useable(reg, dev, nodeid, link);
366 /* I have been allocated this one */
369 else if (result > 1) {
370 /* I have a free register pair */
375 reg = free_reg; // if no free, the free_reg still be 0
380 //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
381 u32 index = get_io_addr_index(nodeid, link);
382 reg = 0x110+ (index<<24) + (4<<20); // index could be 0, 255
385 resource = new_resource(dev, IOINDEX(0x1000 + reg, link));
390 static struct resource *amdfam10_find_mempair(device_t dev, u32 nodeid, u32 link)
392 struct resource *resource;
396 for(reg = 0x80; reg <= 0xb8; reg += 0x8) {
398 result = reg_useable(reg, dev, nodeid, link);
400 /* I have been allocated this one */
403 else if (result > 1) {
404 /* I have a free register pair */
414 //because of Extend conf space, we will never run out of reg,
415 // but we need one index to differ them. so same node and
416 // same link can have multi range
417 u32 index = get_mmio_addr_index(nodeid, link);
418 reg = 0x110+ (index<<24) + (6<<20); // index could be 0, 63
421 resource = new_resource(dev, IOINDEX(0x1000 + reg, link));
426 static void amdfam10_link_read_bases(device_t dev, u32 nodeid, u32 link)
428 struct resource *resource;
430 /* Initialize the io space constraints on the current bus */
431 resource = amdfam10_find_iopair(dev, nodeid, link);
434 #if CONFIG_EXT_CONF_SUPPORT == 1
435 if((resource->index & 0x1fff) == 0x1110) { // ext
440 align = log2(HT_IO_HOST_ALIGN);
443 resource->align = align;
444 resource->gran = align;
445 resource->limit = 0xffffUL;
446 resource->flags = IORESOURCE_IO | IORESOURCE_BRIDGE;
449 /* Initialize the prefetchable memory constraints on the current bus */
450 resource = amdfam10_find_mempair(dev, nodeid, link);
454 resource->align = log2(HT_MEM_HOST_ALIGN);
455 resource->gran = log2(HT_MEM_HOST_ALIGN);
456 resource->limit = 0xffffffffffULL;
457 resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
458 resource->flags |= IORESOURCE_BRIDGE;
460 #if CONFIG_EXT_CONF_SUPPORT == 1
461 if((resource->index & 0x1fff) == 0x1110) { // ext
462 normalize_resource(resource);
468 /* Initialize the memory constraints on the current bus */
469 resource = amdfam10_find_mempair(dev, nodeid, link);
473 resource->align = log2(HT_MEM_HOST_ALIGN);
474 resource->gran = log2(HT_MEM_HOST_ALIGN);
475 resource->limit = 0xffffffffffULL;
476 resource->flags = IORESOURCE_MEM | IORESOURCE_BRIDGE;
477 #if CONFIG_EXT_CONF_SUPPORT == 1
478 if((resource->index & 0x1fff) == 0x1110) { // ext
479 normalize_resource(resource);
485 static void amdfam10_read_resources(device_t dev)
489 nodeid = amdfam10_nodeid(dev);
490 for(link = dev->link_list; link; link = link->next) {
491 if (link->children) {
492 amdfam10_link_read_bases(dev, nodeid, link->link_num);
497 static void amdfam10_set_resource(device_t dev, struct resource *resource,
500 resource_t rbase, rend;
501 unsigned reg, link_num;
504 /* Make certain the resource has actually been set */
505 if (!(resource->flags & IORESOURCE_ASSIGNED)) {
509 /* If I have already stored this resource don't worry about it */
510 if (resource->flags & IORESOURCE_STORED) {
514 /* Only handle PCI memory and IO resources */
515 if (!(resource->flags & (IORESOURCE_MEM | IORESOURCE_IO)))
518 /* Ensure I am actually looking at a resource of function 1 */
519 if ((resource->index & 0xffff) < 0x1000) {
522 /* Get the base address */
523 rbase = resource->base;
525 /* Get the limit (rounded up) */
526 rend = resource_end(resource);
528 /* Get the register and link */
529 reg = resource->index & 0xfff; // 4k
530 link_num = IOINDEX_LINK(resource->index);
532 if (resource->flags & IORESOURCE_IO) {
534 set_io_addr_reg(dev, nodeid, link_num, reg, rbase>>8, rend>>8);
535 store_conf_io_addr(nodeid, link_num, reg, (resource->index >> 24), rbase>>8, rend>>8);
537 else if (resource->flags & IORESOURCE_MEM) {
538 set_mmio_addr_reg(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8, sysconf.nodes) ;// [39:8]
539 store_conf_mmio_addr(nodeid, link_num, reg, (resource->index >>24), rbase>>8, rend>>8);
541 resource->flags |= IORESOURCE_STORED;
542 sprintf(buf, " <node %x link %x>",
544 report_resource_stored(dev, resource, buf);
548 * I tried to reuse the resource allocation code in amdfam10_set_resource()
549 * but it is too difficult to deal with the resource allocation magic.
552 static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid)
556 /* find out which link the VGA card is connected,
557 * we only deal with the 'first' vga card */
558 for (link = dev->link_list; link; link = link->next) {
559 if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
560 #if CONFIG_MULTIPLE_VGA_ADAPTERS == 1
561 extern device_t vga_pri; // the primary vga device, defined in device.c
562 printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d bus range [%d,%d]\n", vga_pri->bus->secondary,
563 link->secondary,link->subordinate);
564 /* We need to make sure the vga_pri is under the link */
565 if((vga_pri->bus->secondary >= link->secondary ) &&
566 (vga_pri->bus->secondary <= link->subordinate )
573 /* no VGA card installed */
577 printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link->link_num);
578 set_vga_enable_reg(nodeid, link->link_num);
581 static void amdfam10_set_resources(device_t dev)
585 struct resource *res;
587 /* Find the nodeid */
588 nodeid = amdfam10_nodeid(dev);
590 amdfam10_create_vga_resource(dev, nodeid);
592 /* Set each resource we have found */
593 for(res = dev->resource_list; res; res = res->next) {
594 amdfam10_set_resource(dev, res, nodeid);
597 for(bus = dev->link_list; bus; bus = bus->next) {
599 assign_resources(bus);
604 static void mcf0_control_init(struct device *dev)
608 static struct device_operations northbridge_operations = {
609 .read_resources = amdfam10_read_resources,
610 .set_resources = amdfam10_set_resources,
611 .enable_resources = pci_dev_enable_resources,
612 .init = mcf0_control_init,
613 .scan_bus = amdfam10_scan_chains,
619 static const struct pci_driver mcf0_driver __pci_driver = {
620 .ops = &northbridge_operations,
621 .vendor = PCI_VENDOR_ID_AMD,
625 struct chip_operations northbridge_amd_amdfam10_ops = {
626 CHIP_NAME("AMD FAM10 Northbridge")
630 static void amdfam10_domain_read_resources(device_t dev)
634 /* Find the already assigned resource pairs */
636 for(reg = 0x80; reg <= 0xd8; reg+= 0x08) {
638 base = f1_read_config32(reg);
639 limit = f1_read_config32(reg + 0x04);
640 /* Is this register allocated? */
641 if ((base & 3) != 0) {
642 unsigned nodeid, reg_link;
644 if(reg<0xc0) { // mmio
645 nodeid = (limit & 0xf) + (base&0x30);
647 nodeid = (limit & 0xf) + ((base>>4)&0x30);
649 reg_link = (limit >> 4) & 7;
650 reg_dev = __f0_dev[nodeid];
652 /* Reserve the resource */
653 struct resource *res;
654 res = new_resource(reg_dev, IOINDEX(0x1000 + reg, reg_link));
661 /* FIXME: do we need to check extend conf space?
662 I don't believe that much preset value */
664 #if CONFIG_PCI_64BIT_PREF_MEM == 0
665 pci_domain_read_resources(dev);
668 struct resource *resource;
669 for(link=dev->link_list; link; link = link->next) {
670 /* Initialize the system wide io space constraints */
671 resource = new_resource(dev, 0|(link->link_num<<2));
672 resource->base = 0x400;
673 resource->limit = 0xffffUL;
674 resource->flags = IORESOURCE_IO;
676 /* Initialize the system wide prefetchable memory resources constraints */
677 resource = new_resource(dev, 1|(link->link_num<<2));
678 resource->limit = 0xfcffffffffULL;
679 resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
681 /* Initialize the system wide memory resources constraints */
682 resource = new_resource(dev, 2|(link->link_num<<2));
683 resource->limit = 0xfcffffffffULL;
684 resource->flags = IORESOURCE_MEM;
689 static u32 my_find_pci_tolm(struct bus *bus, u32 tolm)
691 struct resource *min;
693 search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min);
694 if (min && tolm > min->base) {
700 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
702 struct hw_mem_hole_info {
703 unsigned hole_startk;
707 static struct hw_mem_hole_info get_hw_mem_hole_info(void)
709 struct hw_mem_hole_info mem_hole;
712 mem_hole.hole_startk = CONFIG_HW_MEM_HOLE_SIZEK;
713 mem_hole.node_id = -1;
715 for (i = 0; i < sysconf.nodes; i++) {
716 struct dram_base_mask_t d;
718 d = get_dram_base_mask(i);
719 if(!(d.mask & 1)) continue; // no memory on this node
721 hole = pci_read_config32(__f1_dev[i], 0xf0);
722 if(hole & 1) { // we find the hole
723 mem_hole.hole_startk = (hole & (0xff<<24)) >> 10;
724 mem_hole.node_id = i; // record the node No with hole
725 break; // only one hole
729 //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
730 if(mem_hole.node_id==-1) {
731 resource_t limitk_pri = 0;
732 for(i=0; i<sysconf.nodes; i++) {
733 struct dram_base_mask_t d;
734 resource_t base_k, limit_k;
735 d = get_dram_base_mask(i);
736 if(!(d.base & 1)) continue;
738 base_k = ((resource_t)(d.base & 0x1fffff00)) <<9;
739 if(base_k > 4 *1024 * 1024) break; // don't need to go to check
740 if(limitk_pri != base_k) { // we find the hole
741 mem_hole.hole_startk = (unsigned)limitk_pri; // must beblow 4G
742 mem_hole.node_id = i;
743 break; //only one hole
746 limit_k = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9;
747 limitk_pri = limit_k;
753 // WHY this check? CONFIG_AMDMCT is enabled on all Fam10 boards.
754 // Does it make sense not to?
755 #if CONFIG_AMDMCT == 0
756 static void disable_hoist_memory(unsigned long hole_startk, int node_id)
760 struct dram_base_mask_t d;
767 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
768 struct mem_info *meminfo;
769 meminfo = &sysinfox->meminfo[node_id];
771 one_DCT = get_one_DCT(meminfo);
773 // 1. find which node has hole
774 // 2. change limit in that node.
775 // 3. change base and limit in later node
776 // 4. clear that node f0
778 // if there is not mem hole enabled, we need to change it's base instead
780 hole_sizek = (4*1024*1024) - hole_startk;
782 for(i=NODE_NUMS-1;i>node_id;i--) {
784 d = get_dram_base_mask(i);
786 if(!(d.mask & 1)) continue;
788 d.base -= (hole_sizek>>9);
789 d.mask -= (hole_sizek>>9);
790 set_dram_base_mask(i, d, sysconf.nodes);
792 if(get_DctSelHiEn(i) & 1) {
793 sel_m = get_DctSelBaseAddr(i);
794 sel_m -= hole_startk>>10;
795 set_DctSelBaseAddr(i, sel_m);
799 d = get_dram_base_mask(node_id);
800 dev = __f1_dev[node_id];
801 sel_hi_en = get_DctSelHiEn(node_id);
804 sel_m = get_DctSelBaseAddr(node_id);
806 hoist = pci_read_config32(dev, 0xf0);
808 pci_write_config32(dev, 0xf0, 0);
809 d.mask -= (hole_sizek>>9);
810 set_dram_base_mask(node_id, d, sysconf.nodes);
811 if(one_DCT || (sel_m >= (hole_startk>>10))) {
813 sel_m -= hole_startk>>10;
814 set_DctSelBaseAddr(node_id, sel_m);
818 set_DctSelBaseOffset(node_id, 0);
821 d.base -= (hole_sizek>>9);
822 d.mask -= (hole_sizek>>9);
823 set_dram_base_mask(node_id, d, sysconf.nodes);
826 sel_m -= hole_startk>>10;
827 set_DctSelBaseAddr(node_id, sel_m);
836 #if CONFIG_WRITE_HIGH_TABLES==1
837 #define HIGH_TABLES_SIZE 64 // maximum size of high tables in KB
838 extern uint64_t high_tables_base, high_tables_size;
841 #if CONFIG_GFXUMA == 1
842 extern uint64_t uma_memory_base, uma_memory_size;
844 static void add_uma_resource(struct device *dev, int index)
846 struct resource *resource;
848 printk(BIOS_DEBUG, "Adding UMA memory area\n");
849 resource = new_resource(dev, index);
850 resource->base = (resource_t) uma_memory_base;
851 resource->size = (resource_t) uma_memory_size;
852 resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
853 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
857 static void amdfam10_domain_set_resources(device_t dev)
859 #if CONFIG_PCI_64BIT_PREF_MEM == 1
860 struct resource *io, *mem1, *mem2;
861 struct resource *res;
863 unsigned long mmio_basek;
867 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
868 struct hw_mem_hole_info mem_hole;
869 u32 reset_memhole = 1;
872 #if CONFIG_PCI_64BIT_PREF_MEM == 1
874 for(link = dev->link_list; link; link = link->next) {
875 /* Now reallocate the pci resources memory with the
876 * highest addresses I can manage.
878 mem1 = find_resource(dev, 1|(link->link_num<<2));
879 mem2 = find_resource(dev, 2|(link->link_num<<2));
881 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
882 mem1->base, mem1->limit, mem1->size, mem1->align);
883 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
884 mem2->base, mem2->limit, mem2->size, mem2->align);
886 /* See if both resources have roughly the same limits */
887 if (((mem1->limit <= 0xffffffff) && (mem2->limit <= 0xffffffff)) ||
888 ((mem1->limit > 0xffffffff) && (mem2->limit > 0xffffffff)))
890 /* If so place the one with the most stringent alignment first
892 if (mem2->align > mem1->align) {
893 struct resource *tmp;
898 /* Now place the memory as high up as it will go */
899 mem2->base = resource_max(mem2);
900 mem1->limit = mem2->base - 1;
901 mem1->base = resource_max(mem1);
904 /* Place the resources as high up as they will go */
905 mem2->base = resource_max(mem2);
906 mem1->base = resource_max(mem1);
909 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
910 mem1->base, mem1->limit, mem1->size, mem1->align);
911 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
912 mem2->base, mem2->limit, mem2->size, mem2->align);
915 for(res = &dev->resource_list; res; res = res->next)
917 res->flags |= IORESOURCE_ASSIGNED;
918 res->flags |= IORESOURCE_STORED;
919 report_resource_stored(dev, res, "");
923 pci_tolm = 0xffffffffUL;
924 for(link = dev->link_list; link; link = link->next) {
925 pci_tolm = my_find_pci_tolm(link, pci_tolm);
928 // FIXME handle interleaved nodes. If you fix this here, please fix
930 mmio_basek = pci_tolm >> 10;
931 /* Round mmio_basek to something the processor can support */
932 mmio_basek &= ~((1 << 6) -1);
934 // FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M
935 // MMIO hole. If you fix this here, please fix amdk8, too.
936 /* Round the mmio hole to 64M */
937 mmio_basek &= ~((64*1024) - 1);
939 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
940 /* if the hw mem hole is already set in raminit stage, here we will compare
941 * mmio_basek and hole_basek. if mmio_basek is bigger that hole_basek and will
942 * use hole_basek as mmio_basek and we don't need to reset hole.
943 * otherwise We reset the hole to the mmio_basek
946 mem_hole = get_hw_mem_hole_info();
948 // Use hole_basek as mmio_basek, and we don't need to reset hole anymore
949 if ((mem_hole.node_id != -1) && (mmio_basek > mem_hole.hole_startk)) {
950 mmio_basek = mem_hole.hole_startk;
954 #if CONFIG_AMDMCT == 0
955 //mmio_basek = 3*1024*1024; // for debug to meet boundary
958 if(mem_hole.node_id!=-1) {
959 /* We need to select CONFIG_HW_MEM_HOLE_SIZEK for raminit, it can not
960 make hole_startk to some basek too!
961 We need to reset our Mem Hole, because We want more big HOLE
963 Before that We need to disable mem hole at first, becase
964 memhole could already be set on i+1 instead
966 disable_hoist_memory(mem_hole.hole_startk, mem_hole.node_id);
969 #if CONFIG_HW_MEM_HOLE_SIZE_AUTO_INC == 1
970 // We need to double check if the mmio_basek is valid for hole
971 // setting, if it is equal to basek, we need to decrease it some
972 resource_t basek_pri;
973 for (i = 0; i < sysconf.nodes; i++) {
974 struct dram_base_mask_t d;
976 d = get_dram_base_mask(i);
978 if(!(d.mask &1)) continue;
980 basek = ((resource_t)(d.base & 0x1fffff00)) << 9;
981 if(mmio_basek == (u32)basek) {
982 mmio_basek -= (uin32_t)(basek - basek_pri); // increase mem hole size to make sure it is on middle of pri node
995 for(i = 0; i < sysconf.nodes; i++) {
996 struct dram_base_mask_t d;
997 resource_t basek, limitk, sizek; // 4 1T
998 d = get_dram_base_mask(i);
1000 if(!(d.mask & 1)) continue;
1001 basek = ((resource_t)(d.base & 0x1fffff00)) << 9; // could overflow, we may lost 6 bit here
1002 limitk = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9 ;
1003 sizek = limitk - basek;
1005 /* see if we need a hole from 0xa0000 to 0xbffff */
1006 if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
1007 ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
1009 basek = (8*64)+(16*16);
1010 sizek = limitk - ((8*64)+(16*16));
1014 // printk(BIOS_DEBUG, "node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk);
1016 /* split the region to accomodate pci memory space */
1017 if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) {
1018 if (basek <= mmio_basek) {
1020 pre_sizek = mmio_basek - basek;
1022 ram_resource(dev, (idx | i), basek, pre_sizek);
1025 #if CONFIG_WRITE_HIGH_TABLES==1
1026 if (high_tables_base==0) {
1027 /* Leave some space for ACPI, PIRQ and MP tables */
1028 #if CONFIG_GFXUMA == 1
1029 high_tables_base = uma_memory_base - (HIGH_TABLES_SIZE * 1024);
1031 high_tables_base = (mmio_basek - HIGH_TABLES_SIZE) * 1024;
1033 high_tables_size = HIGH_TABLES_SIZE * 1024;
1034 printk(BIOS_DEBUG, " split: %dK table at =%08llx\n", HIGH_TABLES_SIZE,
1039 #if CONFIG_AMDMCT == 0
1040 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
1042 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
1043 struct mem_info *meminfo;
1044 meminfo = &sysinfox->meminfo[i];
1045 sizek += hoist_memory(mmio_basek,i, get_one_DCT(meminfo), sysconf.nodes);
1052 if ((basek + sizek) <= 4*1024*1024) {
1056 basek = 4*1024*1024;
1057 sizek -= (4*1024*1024 - mmio_basek);
1061 #if CONFIG_GFXUMA == 1
1062 /* Deduct uma memory before reporting because
1063 * this is what the mtrr code expects */
1064 sizek -= uma_memory_size / 1024;
1066 ram_resource(dev, (idx | i), basek, sizek);
1068 #if CONFIG_WRITE_HIGH_TABLES==1
1069 printk(BIOS_DEBUG, "%d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
1070 i, mmio_basek, basek, limitk);
1071 if (high_tables_base==0) {
1072 /* Leave some space for ACPI, PIRQ and MP tables */
1073 #if CONFIG_GFXUMA == 1
1074 high_tables_base = uma_memory_base - (HIGH_TABLES_SIZE * 1024);
1076 high_tables_base = (limitk - HIGH_TABLES_SIZE) * 1024;
1078 high_tables_size = HIGH_TABLES_SIZE * 1024;
1083 #if CONFIG_GFXUMA == 1
1084 add_uma_resource(dev, 7);
1087 for(link = dev->link_list; link; link = link->next) {
1088 if (link->children) {
1089 assign_resources(link);
1094 static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
1099 /* Unmap all of the HT chains */
1100 for(reg = 0xe0; reg <= 0xec; reg += 4) {
1101 f1_write_config32(reg, 0);
1103 #if CONFIG_EXT_CONF_SUPPORT == 1
1105 for(i = 0; i< sysconf.nodes; i++) {
1107 for(index = 0; index < 64; index++) {
1108 pci_write_config32(__f1_dev[i], 0x110, index | (6<<28));
1109 pci_write_config32(__f1_dev[i], 0x114, 0);
1116 for(link = dev->link_list; link; link = link->next) {
1117 max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
1120 /* Tune the hypertransport transaction for best performance.
1121 * Including enabling relaxed ordering if it is safe.
1124 for(i = 0; i < fx_devs; i++) {
1126 f0_dev = __f0_dev[i];
1127 if (f0_dev && f0_dev->enabled) {
1129 httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
1130 httc &= ~HTTC_RSP_PASS_PW;
1131 if (!dev->link_list->disable_relaxed_ordering) {
1132 httc |= HTTC_RSP_PASS_PW;
1134 printk(BIOS_SPEW, "%s passpw: %s\n",
1136 (!dev->link_list->disable_relaxed_ordering)?
1137 "enabled":"disabled");
1138 pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
1144 static struct device_operations pci_domain_ops = {
1145 .read_resources = amdfam10_domain_read_resources,
1146 .set_resources = amdfam10_domain_set_resources,
1147 .enable_resources = NULL,
1149 .scan_bus = amdfam10_domain_scan_bus,
1150 #if CONFIG_MMCONF_SUPPORT_DEFAULT
1151 .ops_pci_bus = &pci_ops_mmconf,
1153 .ops_pci_bus = &pci_cf8_conf1,
1157 static void sysconf_init(device_t dev) // first node
1159 sysconf.sblk = (pci_read_config32(dev, 0x64)>>8) & 7; // don't forget sublink1
1161 sysconf.ht_c_num = 0;
1163 unsigned ht_c_index;
1165 for(ht_c_index=0; ht_c_index<32; ht_c_index++) {
1166 sysconf.ht_c_conf_bus[ht_c_index] = 0;
1169 sysconf.nodes = ((pci_read_config32(dev, 0x60)>>4) & 7) + 1;
1170 #if CONFIG_MAX_PHYSICAL_CPUS > 8
1171 sysconf.nodes += (((pci_read_config32(dev, 0x160)>>4) & 7)<<3);
1174 sysconf.enabled_apic_ext_id = 0;
1175 sysconf.lift_bsp_apicid = 0;
1177 /* Find the bootstrap processors apicid */
1178 sysconf.bsp_apicid = lapicid();
1179 sysconf.apicid_offset = sysconf.bsp_apicid;
1181 #if (CONFIG_ENABLE_APIC_EXT_ID == 1)
1182 if (pci_read_config32(dev, 0x68) & (HTTC_APIC_EXT_ID|HTTC_APIC_EXT_BRD_CST))
1184 sysconf.enabled_apic_ext_id = 1;
1186 #if (CONFIG_APIC_ID_OFFSET>0)
1187 if(sysconf.enabled_apic_ext_id) {
1188 if(sysconf.bsp_apicid == 0) {
1189 /* bsp apic id is not changed */
1190 sysconf.apicid_offset = CONFIG_APIC_ID_OFFSET;
1192 sysconf.lift_bsp_apicid = 1;
1199 static void add_more_links(device_t dev, unsigned total_links)
1201 struct bus *link, *last = NULL;
1204 for (link = dev->link_list; link; link = link->next)
1208 int links = total_links - last->link_num;
1209 link_num = last->link_num;
1211 link = malloc(links*sizeof(*link));
1213 die("Couldn't allocate more links!\n");
1214 memset(link, 0, links*sizeof(*link));
1220 link = malloc(total_links*sizeof(*link));
1221 memset(link, 0, total_links*sizeof(*link));
1222 dev->link_list = link;
1225 for (link_num = link_num + 1; link_num < total_links; link_num++) {
1226 link->link_num = link_num;
1228 link->next = link + 1;
1235 static u32 cpu_bus_scan(device_t dev, u32 max)
1237 struct bus *cpu_bus;
1240 device_t pci_domain;
1247 int disable_siblings;
1248 unsigned ApicIdCoreIdSize;
1251 ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf);
1252 if(ApicIdCoreIdSize) {
1253 siblings = (1<<ApicIdCoreIdSize)-1;
1255 siblings = 3; //quad core
1258 disable_siblings = !CONFIG_LOGICAL_CPUS;
1259 #if CONFIG_LOGICAL_CPUS == 1
1260 get_option(&disable_siblings, "multi_core");
1263 // How can I get the nb_cfg_54 of every node's nb_cfg_54 in bsp???
1264 nb_cfg_54 = read_nb_cfg_54();
1267 dev_mc = dev_find_slot(0, PCI_DEVFN(CONFIG_CDB, 0)); //0x00
1268 if(dev_mc && dev_mc->bus) {
1269 printk(BIOS_DEBUG, "%s found", dev_path(dev_mc));
1270 pci_domain = dev_mc->bus->dev;
1271 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1272 printk(BIOS_DEBUG, "\n%s move to ",dev_path(dev_mc));
1273 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1274 printk(BIOS_DEBUG, "%s",dev_path(dev_mc));
1277 printk(BIOS_DEBUG, " but it is not under pci_domain directly ");
1279 printk(BIOS_DEBUG, "\n");
1281 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1283 dev_mc = dev_find_slot(0, PCI_DEVFN(0x18, 0));
1284 if (dev_mc && dev_mc->bus) {
1285 printk(BIOS_DEBUG, "%s found\n", dev_path(dev_mc));
1286 pci_domain = dev_mc->bus->dev;
1287 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1288 if((pci_domain->link_list) && (pci_domain->link_list->children == dev_mc)) {
1289 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1290 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1291 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1293 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1294 dev_mc->path.pci.devfn -= PCI_DEVFN(0x18,0);
1295 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1296 dev_mc = dev_mc->sibling;
1305 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1307 printk(BIOS_ERR, "%02x:%02x.0 not found", CONFIG_CBB, CONFIG_CDB);
1311 sysconf_init(dev_mc);
1313 nodes = sysconf.nodes;
1315 #if CONFIG_CBB && (NODE_NUMS > 32)
1316 if(nodes>32) { // need to put node 32 to node 63 to bus 0xfe
1317 if(pci_domain->link_list && !pci_domain->link_list->next) {
1318 struct bus *new_link = new_link(pci_domain);
1319 pci_domain->link_list->next = new_link;
1320 new_link->link_num = 1;
1321 new_link->dev = pci_domain;
1322 new_link->children = 0;
1323 printk(BIOS_DEBUG, "%s links now 2\n", dev_path(pci_domain));
1325 pci_domain->link_list->next->secondary = CONFIG_CBB - 1;
1328 /* Find which cpus are present */
1329 cpu_bus = dev->link_list;
1330 for(i = 0; i < nodes; i++) {
1331 device_t cdb_dev, cpu;
1332 struct device_path cpu_path;
1333 unsigned busn, devn;
1337 devn = CONFIG_CDB+i;
1339 #if CONFIG_CBB && (NODE_NUMS > 32)
1343 pbus = pci_domain->link_list->next);
1347 /* Find the cpu's pci device */
1348 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1350 /* If I am probing things in a weird order
1351 * ensure all of the cpu's pci devices are found.
1354 for(fn = 0; fn <= 5; fn++) { //FBDIMM?
1355 cdb_dev = pci_probe_dev(NULL, pbus,
1356 PCI_DEVFN(devn, fn));
1358 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1361 /* Ok, We need to set the links for that device.
1362 * otherwise the device under it will not be scanned
1365 #if CONFIG_HT3_SUPPORT==1
1370 add_more_links(cdb_dev, linknum);
1373 cores_found = 0; // one core
1374 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 3));
1375 if (cdb_dev && cdb_dev->enabled) {
1376 j = pci_read_config32(cdb_dev, 0xe8);
1377 cores_found = (j >> 12) & 3; // dev is func 3
1379 cores_found |= (j >> 13) & 4;
1380 printk(BIOS_DEBUG, " %s siblings=%d\n", dev_path(cdb_dev), cores_found);
1384 if(disable_siblings) {
1391 for (j = 0; j <=jj; j++ ) {
1393 /* Build the cpu device path */
1394 cpu_path.type = DEVICE_PATH_APIC;
1395 cpu_path.apic.apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
1397 /* See if I can find the cpu */
1398 cpu = find_dev_path(cpu_bus, &cpu_path);
1400 /* Enable the cpu if I have the processor */
1401 if (cdb_dev && cdb_dev->enabled) {
1403 cpu = alloc_dev(cpu_bus, &cpu_path);
1410 /* Disable the cpu if I don't have the processor */
1411 if (cpu && (!cdb_dev || !cdb_dev->enabled)) {
1415 /* Report what I have done */
1417 cpu->path.apic.node_id = i;
1418 cpu->path.apic.core_id = j;
1419 #if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET>0)
1420 if(sysconf.enabled_apic_ext_id) {
1421 if(sysconf.lift_bsp_apicid) {
1422 cpu->path.apic.apic_id += sysconf.apicid_offset;
1425 if (cpu->path.apic.apic_id != 0)
1426 cpu->path.apic.apic_id += sysconf.apicid_offset;
1430 printk(BIOS_DEBUG, "CPU: %s %s\n",
1431 dev_path(cpu), cpu->enabled?"enabled":"disabled");
1439 static void cpu_bus_init(device_t dev)
1441 initialize_cpus(dev->link_list);
1444 static void cpu_bus_noop(device_t dev)
1448 static void cpu_bus_read_resources(device_t dev)
1450 #if CONFIG_MMCONF_SUPPORT
1451 struct resource *resource = new_resource(dev, 0xc0010058);
1452 resource->base = CONFIG_MMCONF_BASE_ADDRESS;
1453 resource->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
1454 resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
1455 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
1459 static void cpu_bus_set_resources(device_t dev)
1461 struct resource *resource = find_resource(dev, 0xc0010058);
1463 report_resource_stored(dev, resource, " <mmconfig>");
1465 pci_dev_set_resources(dev);
1468 static struct device_operations cpu_bus_ops = {
1469 .read_resources = cpu_bus_read_resources,
1470 .set_resources = cpu_bus_set_resources,
1471 .enable_resources = cpu_bus_noop,
1472 .init = cpu_bus_init,
1473 .scan_bus = cpu_bus_scan,
1476 static void root_complex_enable_dev(struct device *dev)
1478 /* Set the operations if it is a special bus type */
1479 if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
1480 dev->ops = &pci_domain_ops;
1482 else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
1483 dev->ops = &cpu_bus_ops;
1487 struct chip_operations northbridge_amd_amdfam10_root_complex_ops = {
1488 CHIP_NAME("AMD FAM10 Root Complex")
1489 .enable_dev = root_complex_enable_dev,