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);
549 * I tried to reuse the resource allocation code in amdfam10_set_resource()
550 * but it is too diffcult to deal with the resource allocation magic.
552 #if CONFIG_CONSOLE_VGA_MULTI == 1
553 extern device_t vga_pri; // the primary vga device, defined in device.c
556 static void amdfam10_create_vga_resource(device_t dev, unsigned nodeid)
560 /* find out which link the VGA card is connected,
561 * we only deal with the 'first' vga card */
562 for (link = dev->link_list; link; link = link->next) {
563 if (link->bridge_ctrl & PCI_BRIDGE_CTL_VGA) {
564 #if CONFIG_CONSOLE_VGA_MULTI == 1
565 printk(BIOS_DEBUG, "VGA: vga_pri bus num = %d bus range [%d,%d]\n", vga_pri->bus->secondary,
566 link->secondary,link->subordinate);
567 /* We need to make sure the vga_pri is under the link */
568 if((vga_pri->bus->secondary >= link->secondary ) &&
569 (vga_pri->bus->secondary <= link->subordinate )
576 /* no VGA card installed */
580 printk(BIOS_DEBUG, "VGA: %s (aka node %d) link %d has VGA device\n", dev_path(dev), nodeid, link->link_num);
581 set_vga_enable_reg(nodeid, link->link_num);
584 static void amdfam10_set_resources(device_t dev)
588 struct resource *res;
590 /* Find the nodeid */
591 nodeid = amdfam10_nodeid(dev);
593 amdfam10_create_vga_resource(dev, nodeid);
595 /* Set each resource we have found */
596 for(res = dev->resource_list; res; res = res->next) {
597 amdfam10_set_resource(dev, res, nodeid);
600 for(bus = dev->link_list; bus; bus = bus->next) {
602 assign_resources(bus);
607 static void amdfam10_enable_resources(device_t dev)
609 pci_dev_enable_resources(dev);
610 enable_childrens_resources(dev);
613 static void mcf0_control_init(struct device *dev)
617 static struct device_operations northbridge_operations = {
618 .read_resources = amdfam10_read_resources,
619 .set_resources = amdfam10_set_resources,
620 .enable_resources = amdfam10_enable_resources,
621 .init = mcf0_control_init,
622 .scan_bus = amdfam10_scan_chains,
628 static const struct pci_driver mcf0_driver __pci_driver = {
629 .ops = &northbridge_operations,
630 .vendor = PCI_VENDOR_ID_AMD,
634 struct chip_operations northbridge_amd_amdfam10_ops = {
635 CHIP_NAME("AMD FAM10 Northbridge")
639 static void amdfam10_domain_read_resources(device_t dev)
643 /* Find the already assigned resource pairs */
645 for(reg = 0x80; reg <= 0xd8; reg+= 0x08) {
647 base = f1_read_config32(reg);
648 limit = f1_read_config32(reg + 0x04);
649 /* Is this register allocated? */
650 if ((base & 3) != 0) {
651 unsigned nodeid, reg_link;
653 if(reg<0xc0) { // mmio
654 nodeid = (limit & 0xf) + (base&0x30);
656 nodeid = (limit & 0xf) + ((base>>4)&0x30);
658 reg_link = (limit >> 4) & 7;
659 reg_dev = __f0_dev[nodeid];
661 /* Reserve the resource */
662 struct resource *res;
663 res = new_resource(reg_dev, IOINDEX(0x1000 + reg, reg_link));
670 /* FIXME: do we need to check extend conf space?
671 I don't believe that much preset value */
673 #if CONFIG_PCI_64BIT_PREF_MEM == 0
674 pci_domain_read_resources(dev);
677 struct resource *resource;
678 for(link=dev->link_list; link; link = link->next) {
679 /* Initialize the system wide io space constraints */
680 resource = new_resource(dev, 0|(link->link_num<<2));
681 resource->base = 0x400;
682 resource->limit = 0xffffUL;
683 resource->flags = IORESOURCE_IO;
685 /* Initialize the system wide prefetchable memory resources constraints */
686 resource = new_resource(dev, 1|(link->link_num<<2));
687 resource->limit = 0xfcffffffffULL;
688 resource->flags = IORESOURCE_MEM | IORESOURCE_PREFETCH;
690 /* Initialize the system wide memory resources constraints */
691 resource = new_resource(dev, 2|(link->link_num<<2));
692 resource->limit = 0xfcffffffffULL;
693 resource->flags = IORESOURCE_MEM;
698 static void ram_resource(device_t dev, unsigned long index,
699 resource_t basek, resource_t sizek)
701 struct resource *resource;
706 resource = new_resource(dev, index);
707 resource->base = basek << 10;
708 resource->size = sizek << 10;
709 resource->flags = IORESOURCE_MEM | IORESOURCE_CACHEABLE | \
710 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
713 static void tolm_test(void *gp, struct device *dev, struct resource *new)
715 struct resource **best_p = gp;
716 struct resource *best;
718 if (!best || (best->base > new->base)) {
724 static u32 find_pci_tolm(struct bus *bus, u32 tolm)
726 struct resource *min;
728 search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min);
729 if (min && tolm > min->base) {
735 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
737 struct hw_mem_hole_info {
738 unsigned hole_startk;
742 static struct hw_mem_hole_info get_hw_mem_hole_info(void)
744 struct hw_mem_hole_info mem_hole;
747 mem_hole.hole_startk = CONFIG_HW_MEM_HOLE_SIZEK;
748 mem_hole.node_id = -1;
750 for (i = 0; i < sysconf.nodes; i++) {
751 struct dram_base_mask_t d;
753 d = get_dram_base_mask(i);
754 if(!(d.mask & 1)) continue; // no memory on this node
756 hole = pci_read_config32(__f1_dev[i], 0xf0);
757 if(hole & 1) { // we find the hole
758 mem_hole.hole_startk = (hole & (0xff<<24)) >> 10;
759 mem_hole.node_id = i; // record the node No with hole
760 break; // only one hole
764 //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
765 if(mem_hole.node_id==-1) {
766 resource_t limitk_pri = 0;
767 for(i=0; i<sysconf.nodes; i++) {
768 struct dram_base_mask_t d;
769 resource_t base_k, limit_k;
770 d = get_dram_base_mask(i);
771 if(!(d.base & 1)) continue;
773 base_k = ((resource_t)(d.base & 0x1fffff00)) <<9;
774 if(base_k > 4 *1024 * 1024) break; // don't need to go to check
775 if(limitk_pri != base_k) { // we find the hole
776 mem_hole.hole_startk = (unsigned)limitk_pri; // must beblow 4G
777 mem_hole.node_id = i;
778 break; //only one hole
781 limit_k = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9;
782 limitk_pri = limit_k;
788 // WHY this check? CONFIG_AMDMCT is enabled on all Fam10 boards.
789 // Does it make sense not to?
790 #if CONFIG_AMDMCT == 0
791 static void disable_hoist_memory(unsigned long hole_startk, int node_id)
795 struct dram_base_mask_t d;
802 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
803 struct mem_info *meminfo;
804 meminfo = &sysinfox->meminfo[node_id];
806 one_DCT = get_one_DCT(meminfo);
808 // 1. find which node has hole
809 // 2. change limit in that node.
810 // 3. change base and limit in later node
811 // 4. clear that node f0
813 // if there is not mem hole enabled, we need to change it's base instead
815 hole_sizek = (4*1024*1024) - hole_startk;
817 for(i=NODE_NUMS-1;i>node_id;i--) {
819 d = get_dram_base_mask(i);
821 if(!(d.mask & 1)) continue;
823 d.base -= (hole_sizek>>9);
824 d.mask -= (hole_sizek>>9);
825 set_dram_base_mask(i, d, sysconf.nodes);
827 if(get_DctSelHiEn(i) & 1) {
828 sel_m = get_DctSelBaseAddr(i);
829 sel_m -= hole_startk>>10;
830 set_DctSelBaseAddr(i, sel_m);
834 d = get_dram_base_mask(node_id);
835 dev = __f1_dev[node_id];
836 sel_hi_en = get_DctSelHiEn(node_id);
839 sel_m = get_DctSelBaseAddr(node_id);
841 hoist = pci_read_config32(dev, 0xf0);
843 pci_write_config32(dev, 0xf0, 0);
844 d.mask -= (hole_sizek>>9);
845 set_dram_base_mask(node_id, d, sysconf.nodes);
846 if(one_DCT || (sel_m >= (hole_startk>>10))) {
848 sel_m -= hole_startk>>10;
849 set_DctSelBaseAddr(node_id, sel_m);
853 set_DctSelBaseOffset(node_id, 0);
856 d.base -= (hole_sizek>>9);
857 d.mask -= (hole_sizek>>9);
858 set_dram_base_mask(node_id, d, sysconf.nodes);
861 sel_m -= hole_startk>>10;
862 set_DctSelBaseAddr(node_id, sel_m);
871 #if CONFIG_WRITE_HIGH_TABLES==1
872 #define HIGH_TABLES_SIZE 64 // maximum size of high tables in KB
873 extern uint64_t high_tables_base, high_tables_size;
876 static void amdfam10_domain_set_resources(device_t dev)
878 #if CONFIG_PCI_64BIT_PREF_MEM == 1
879 struct resource *io, *mem1, *mem2;
880 struct resource *res;
882 unsigned long mmio_basek;
886 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
887 struct hw_mem_hole_info mem_hole;
888 u32 reset_memhole = 1;
891 #if CONFIG_PCI_64BIT_PREF_MEM == 1
893 for(link = dev->link_list; link; link = link->next) {
894 /* Now reallocate the pci resources memory with the
895 * highest addresses I can manage.
897 mem1 = find_resource(dev, 1|(link->link_num<<2));
898 mem2 = find_resource(dev, 2|(link->link_num<<2));
900 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
901 mem1->base, mem1->limit, mem1->size, mem1->align);
902 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
903 mem2->base, mem2->limit, mem2->size, mem2->align);
905 /* See if both resources have roughly the same limits */
906 if (((mem1->limit <= 0xffffffff) && (mem2->limit <= 0xffffffff)) ||
907 ((mem1->limit > 0xffffffff) && (mem2->limit > 0xffffffff)))
909 /* If so place the one with the most stringent alignment first
911 if (mem2->align > mem1->align) {
912 struct resource *tmp;
917 /* Now place the memory as high up as it will go */
918 mem2->base = resource_max(mem2);
919 mem1->limit = mem2->base - 1;
920 mem1->base = resource_max(mem1);
923 /* Place the resources as high up as they will go */
924 mem2->base = resource_max(mem2);
925 mem1->base = resource_max(mem1);
928 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
929 mem1->base, mem1->limit, mem1->size, mem1->align);
930 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
931 mem2->base, mem2->limit, mem2->size, mem2->align);
934 for(res = &dev->resource_list; res; res = res->next)
936 res->flags |= IORESOURCE_ASSIGNED;
937 res->flags |= IORESOURCE_STORED;
938 report_resource_stored(dev, res, "");
942 pci_tolm = 0xffffffffUL;
943 for(link = dev->link_list; link; link = link->next) {
944 pci_tolm = find_pci_tolm(link, pci_tolm);
947 // FIXME handle interleaved nodes. If you fix this here, please fix
949 mmio_basek = pci_tolm >> 10;
950 /* Round mmio_basek to something the processor can support */
951 mmio_basek &= ~((1 << 6) -1);
953 // FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M
954 // MMIO hole. If you fix this here, please fix amdk8, too.
955 /* Round the mmio hole to 64M */
956 mmio_basek &= ~((64*1024) - 1);
958 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
959 /* if the hw mem hole is already set in raminit stage, here we will compare
960 * mmio_basek and hole_basek. if mmio_basek is bigger that hole_basek and will
961 * use hole_basek as mmio_basek and we don't need to reset hole.
962 * otherwise We reset the hole to the mmio_basek
965 mem_hole = get_hw_mem_hole_info();
967 // Use hole_basek as mmio_basek, and we don't need to reset hole anymore
968 if ((mem_hole.node_id != -1) && (mmio_basek > mem_hole.hole_startk)) {
969 mmio_basek = mem_hole.hole_startk;
973 #if CONFIG_AMDMCT == 0
974 //mmio_basek = 3*1024*1024; // for debug to meet boundary
977 if(mem_hole.node_id!=-1) {
978 /* We need to select CONFIG_HW_MEM_HOLE_SIZEK for raminit, it can not
979 make hole_startk to some basek too!
980 We need to reset our Mem Hole, because We want more big HOLE
982 Before that We need to disable mem hole at first, becase
983 memhole could already be set on i+1 instead
985 disable_hoist_memory(mem_hole.hole_startk, mem_hole.node_id);
988 #if CONFIG_HW_MEM_HOLE_SIZE_AUTO_INC == 1
989 // We need to double check if the mmio_basek is valid for hole
990 // setting, if it is equal to basek, we need to decrease it some
991 resource_t basek_pri;
992 for (i = 0; i < sysconf.nodes; i++) {
993 struct dram_base_mask_t d;
995 d = get_dram_base_mask(i);
997 if(!(d.mask &1)) continue;
999 basek = ((resource_t)(d.base & 0x1fffff00)) << 9;
1000 if(mmio_basek == (u32)basek) {
1001 mmio_basek -= (uin32_t)(basek - basek_pri); // increase mem hole size to make sure it is on middle of pri node
1014 for(i = 0; i < sysconf.nodes; i++) {
1015 struct dram_base_mask_t d;
1016 resource_t basek, limitk, sizek; // 4 1T
1017 d = get_dram_base_mask(i);
1019 if(!(d.mask & 1)) continue;
1020 basek = ((resource_t)(d.base & 0x1fffff00)) << 9; // could overflow, we may lost 6 bit here
1021 limitk = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9 ;
1022 sizek = limitk - basek;
1024 /* see if we need a hole from 0xa0000 to 0xbffff */
1025 if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
1026 ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
1028 basek = (8*64)+(16*16);
1029 sizek = limitk - ((8*64)+(16*16));
1033 // printk(BIOS_DEBUG, "node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk);
1035 /* split the region to accomodate pci memory space */
1036 if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) {
1037 if (basek <= mmio_basek) {
1039 pre_sizek = mmio_basek - basek;
1041 ram_resource(dev, (idx | i), basek, pre_sizek);
1044 #if CONFIG_WRITE_HIGH_TABLES==1
1045 if (high_tables_base==0) {
1046 /* Leave some space for ACPI, PIRQ and MP tables */
1047 high_tables_base = (mmio_basek - HIGH_TABLES_SIZE) * 1024;
1048 high_tables_size = HIGH_TABLES_SIZE * 1024;
1049 printk(BIOS_DEBUG, " split: %dK table at =%08llx\n", HIGH_TABLES_SIZE,
1054 #if CONFIG_AMDMCT == 0
1055 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
1057 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
1058 struct mem_info *meminfo;
1059 meminfo = &sysinfox->meminfo[i];
1060 sizek += hoist_memory(mmio_basek,i, get_one_DCT(meminfo), sysconf.nodes);
1067 if ((basek + sizek) <= 4*1024*1024) {
1071 basek = 4*1024*1024;
1072 sizek -= (4*1024*1024 - mmio_basek);
1075 ram_resource(dev, (idx | i), basek, sizek);
1077 #if CONFIG_WRITE_HIGH_TABLES==1
1078 printk(BIOS_DEBUG, "%d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
1079 i, mmio_basek, basek, limitk);
1080 if (high_tables_base==0) {
1081 /* Leave some space for ACPI, PIRQ and MP tables */
1082 high_tables_base = (limitk - HIGH_TABLES_SIZE) * 1024;
1083 high_tables_size = HIGH_TABLES_SIZE * 1024;
1088 for(link = dev->link_list; link; link = link->next) {
1089 if (link->children) {
1090 assign_resources(link);
1095 static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
1100 /* Unmap all of the HT chains */
1101 for(reg = 0xe0; reg <= 0xec; reg += 4) {
1102 f1_write_config32(reg, 0);
1104 #if CONFIG_EXT_CONF_SUPPORT == 1
1106 for(i = 0; i< sysconf.nodes; i++) {
1108 for(index = 0; index < 64; index++) {
1109 pci_write_config32(__f1_dev[i], 0x110, index | (6<<28));
1110 pci_write_config32(__f1_dev[i], 0x114, 0);
1117 for(link = dev->link_list; link; link = link->next) {
1118 max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
1121 /* Tune the hypertransport transaction for best performance.
1122 * Including enabling relaxed ordering if it is safe.
1125 for(i = 0; i < fx_devs; i++) {
1127 f0_dev = __f0_dev[i];
1128 if (f0_dev && f0_dev->enabled) {
1130 httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
1131 httc &= ~HTTC_RSP_PASS_PW;
1132 if (!dev->link_list->disable_relaxed_ordering) {
1133 httc |= HTTC_RSP_PASS_PW;
1135 printk(BIOS_SPEW, "%s passpw: %s\n",
1137 (!dev->link_list->disable_relaxed_ordering)?
1138 "enabled":"disabled");
1139 pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
1145 static struct device_operations pci_domain_ops = {
1146 .read_resources = amdfam10_domain_read_resources,
1147 .set_resources = amdfam10_domain_set_resources,
1148 .enable_resources = enable_childrens_resources,
1150 .scan_bus = amdfam10_domain_scan_bus,
1151 #if CONFIG_MMCONF_SUPPORT_DEFAULT
1152 .ops_pci_bus = &pci_ops_mmconf,
1154 .ops_pci_bus = &pci_cf8_conf1,
1158 static void sysconf_init(device_t dev) // first node
1160 sysconf.sblk = (pci_read_config32(dev, 0x64)>>8) & 7; // don't forget sublink1
1162 sysconf.ht_c_num = 0;
1164 unsigned ht_c_index;
1166 for(ht_c_index=0; ht_c_index<32; ht_c_index++) {
1167 sysconf.ht_c_conf_bus[ht_c_index] = 0;
1170 sysconf.nodes = ((pci_read_config32(dev, 0x60)>>4) & 7) + 1;
1171 #if CONFIG_MAX_PHYSICAL_CPUS > 8
1172 sysconf.nodes += (((pci_read_config32(dev, 0x160)>>4) & 7)<<3);
1175 sysconf.enabled_apic_ext_id = 0;
1176 sysconf.lift_bsp_apicid = 0;
1178 /* Find the bootstrap processors apicid */
1179 sysconf.bsp_apicid = lapicid();
1180 sysconf.apicid_offset = sysconf.bsp_apicid;
1182 #if (CONFIG_ENABLE_APIC_EXT_ID == 1)
1183 if (pci_read_config32(dev, 0x68) & (HTTC_APIC_EXT_ID|HTTC_APIC_EXT_BRD_CST))
1185 sysconf.enabled_apic_ext_id = 1;
1187 #if (CONFIG_APIC_ID_OFFSET>0)
1188 if(sysconf.enabled_apic_ext_id) {
1189 if(sysconf.bsp_apicid == 0) {
1190 /* bsp apic id is not changed */
1191 sysconf.apicid_offset = CONFIG_APIC_ID_OFFSET;
1193 sysconf.lift_bsp_apicid = 1;
1200 static void add_more_links(device_t dev, unsigned total_links)
1202 struct bus *link, *last = NULL;
1205 for (link = dev->link_list; link; link = link->next)
1209 int links = total_links - last->link_num;
1210 link_num = last->link_num;
1212 link = malloc(links*sizeof(*link));
1214 die("Couldn't allocate more links!\n");
1215 memset(link, 0, links*sizeof(*link));
1221 link = malloc(total_links*sizeof(*link));
1222 memset(link, 0, total_links*sizeof(*link));
1223 dev->link_list = link;
1226 for (link_num = link_num + 1; link_num < total_links; link_num++) {
1227 link->link_num = link_num;
1229 link->next = link + 1;
1236 static u32 cpu_bus_scan(device_t dev, u32 max)
1238 struct bus *cpu_bus;
1241 device_t pci_domain;
1248 int disable_siblings;
1249 unsigned ApicIdCoreIdSize;
1252 ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf);
1253 if(ApicIdCoreIdSize) {
1254 siblings = (1<<ApicIdCoreIdSize)-1;
1256 siblings = 3; //quad core
1259 disable_siblings = !CONFIG_LOGICAL_CPUS;
1260 #if CONFIG_LOGICAL_CPUS == 1
1261 get_option(&disable_siblings, "multi_core");
1264 // How can I get the nb_cfg_54 of every node's nb_cfg_54 in bsp???
1265 nb_cfg_54 = read_nb_cfg_54();
1268 dev_mc = dev_find_slot(0, PCI_DEVFN(CONFIG_CDB, 0)); //0x00
1269 if(dev_mc && dev_mc->bus) {
1270 printk(BIOS_DEBUG, "%s found", dev_path(dev_mc));
1271 pci_domain = dev_mc->bus->dev;
1272 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1273 printk(BIOS_DEBUG, "\n%s move to ",dev_path(dev_mc));
1274 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1275 printk(BIOS_DEBUG, "%s",dev_path(dev_mc));
1278 printk(BIOS_DEBUG, " but it is not under pci_domain directly ");
1280 printk(BIOS_DEBUG, "\n");
1282 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1284 dev_mc = dev_find_slot(0, PCI_DEVFN(0x18, 0));
1285 if (dev_mc && dev_mc->bus) {
1286 printk(BIOS_DEBUG, "%s found\n", dev_path(dev_mc));
1287 pci_domain = dev_mc->bus->dev;
1288 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1289 if((pci_domain->link_list) && (pci_domain->link_list->children == dev_mc)) {
1290 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1291 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1292 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1294 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1295 dev_mc->path.pci.devfn -= PCI_DEVFN(0x18,0);
1296 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1297 dev_mc = dev_mc->sibling;
1306 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1308 printk(BIOS_ERR, "%02x:%02x.0 not found", CONFIG_CBB, CONFIG_CDB);
1312 sysconf_init(dev_mc);
1314 nodes = sysconf.nodes;
1316 #if CONFIG_CBB && (NODE_NUMS > 32)
1317 if(nodes>32) { // need to put node 32 to node 63 to bus 0xfe
1318 if(pci_domain->link_list && !pci_domain->link_list->next) {
1319 struct bus *new_link = new_link(pci_domain);
1320 pci_domain->link_list->next = new_link;
1321 new_link->link_num = 1;
1322 new_link->dev = pci_domain;
1323 new_link->children = 0;
1324 printk(BIOS_DEBUG, "%s links now 2\n", dev_path(pci_domain));
1326 pci_domain->link_list->next->secondary = CONFIG_CBB - 1;
1329 /* Find which cpus are present */
1330 cpu_bus = dev->link_list;
1331 for(i = 0; i < nodes; i++) {
1332 device_t cdb_dev, cpu;
1333 struct device_path cpu_path;
1334 unsigned busn, devn;
1338 devn = CONFIG_CDB+i;
1340 #if CONFIG_CBB && (NODE_NUMS > 32)
1344 pbus = pci_domain->link_list->next);
1348 /* Find the cpu's pci device */
1349 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1351 /* If I am probing things in a weird order
1352 * ensure all of the cpu's pci devices are found.
1355 for(fn = 0; fn <= 5; fn++) { //FBDIMM?
1356 cdb_dev = pci_probe_dev(NULL, pbus,
1357 PCI_DEVFN(devn, fn));
1359 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1362 /* Ok, We need to set the links for that device.
1363 * otherwise the device under it will not be scanned
1366 #if CONFIG_HT3_SUPPORT==1
1371 add_more_links(cdb_dev, linknum);
1374 cores_found = 0; // one core
1375 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 3));
1376 if (cdb_dev && cdb_dev->enabled) {
1377 j = pci_read_config32(cdb_dev, 0xe8);
1378 cores_found = (j >> 12) & 3; // dev is func 3
1380 cores_found |= (j >> 13) & 4;
1381 printk(BIOS_DEBUG, " %s siblings=%d\n", dev_path(cdb_dev), cores_found);
1385 if(disable_siblings) {
1392 for (j = 0; j <=jj; j++ ) {
1394 /* Build the cpu device path */
1395 cpu_path.type = DEVICE_PATH_APIC;
1396 cpu_path.apic.apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
1398 /* See if I can find the cpu */
1399 cpu = find_dev_path(cpu_bus, &cpu_path);
1401 /* Enable the cpu if I have the processor */
1402 if (cdb_dev && cdb_dev->enabled) {
1404 cpu = alloc_dev(cpu_bus, &cpu_path);
1411 /* Disable the cpu if I don't have the processor */
1412 if (cpu && (!cdb_dev || !cdb_dev->enabled)) {
1416 /* Report what I have done */
1418 cpu->path.apic.node_id = i;
1419 cpu->path.apic.core_id = j;
1420 #if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET>0)
1421 if(sysconf.enabled_apic_ext_id) {
1422 if(sysconf.lift_bsp_apicid) {
1423 cpu->path.apic.apic_id += sysconf.apicid_offset;
1426 if (cpu->path.apic.apic_id != 0)
1427 cpu->path.apic.apic_id += sysconf.apicid_offset;
1431 printk(BIOS_DEBUG, "CPU: %s %s\n",
1432 dev_path(cpu), cpu->enabled?"enabled":"disabled");
1440 static void cpu_bus_init(device_t dev)
1442 initialize_cpus(dev->link_list);
1445 static void cpu_bus_noop(device_t dev)
1449 static struct device_operations cpu_bus_ops = {
1450 .read_resources = cpu_bus_noop,
1451 .set_resources = cpu_bus_noop,
1452 .enable_resources = cpu_bus_noop,
1453 .init = cpu_bus_init,
1454 .scan_bus = cpu_bus_scan,
1457 static void root_complex_enable_dev(struct device *dev)
1459 /* Set the operations if it is a special bus type */
1460 if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
1461 dev->ops = &pci_domain_ops;
1463 else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
1464 dev->ops = &cpu_bus_ops;
1468 struct chip_operations northbridge_amd_amdfam10_root_complex_ops = {
1469 CHIP_NAME("AMD FAM10 Root Complex")
1470 .enable_dev = root_complex_enable_dev,