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;
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;
687 #if CONFIG_MMCONF_SUPPORT
688 struct resource *res = new_resource(dev, 0xc0010058);
689 res->base = CONFIG_MMCONF_BASE_ADDRESS;
690 res->size = CONFIG_MMCONF_BUS_NUMBER * 4096*256;
691 res->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
692 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
696 static u32 my_find_pci_tolm(struct bus *bus, u32 tolm)
698 struct resource *min;
700 search_bus_resources(bus, IORESOURCE_MEM, IORESOURCE_MEM, tolm_test, &min);
701 if (min && tolm > min->base) {
707 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
709 struct hw_mem_hole_info {
710 unsigned hole_startk;
714 static struct hw_mem_hole_info get_hw_mem_hole_info(void)
716 struct hw_mem_hole_info mem_hole;
719 mem_hole.hole_startk = CONFIG_HW_MEM_HOLE_SIZEK;
720 mem_hole.node_id = -1;
722 for (i = 0; i < sysconf.nodes; i++) {
723 struct dram_base_mask_t d;
725 d = get_dram_base_mask(i);
726 if(!(d.mask & 1)) continue; // no memory on this node
728 hole = pci_read_config32(__f1_dev[i], 0xf0);
729 if(hole & 1) { // we find the hole
730 mem_hole.hole_startk = (hole & (0xff<<24)) >> 10;
731 mem_hole.node_id = i; // record the node No with hole
732 break; // only one hole
736 //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
737 if(mem_hole.node_id==-1) {
738 resource_t limitk_pri = 0;
739 for(i=0; i<sysconf.nodes; i++) {
740 struct dram_base_mask_t d;
741 resource_t base_k, limit_k;
742 d = get_dram_base_mask(i);
743 if(!(d.base & 1)) continue;
745 base_k = ((resource_t)(d.base & 0x1fffff00)) <<9;
746 if(base_k > 4 *1024 * 1024) break; // don't need to go to check
747 if(limitk_pri != base_k) { // we find the hole
748 mem_hole.hole_startk = (unsigned)limitk_pri; // must beblow 4G
749 mem_hole.node_id = i;
750 break; //only one hole
753 limit_k = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9;
754 limitk_pri = limit_k;
760 // WHY this check? CONFIG_AMDMCT is enabled on all Fam10 boards.
761 // Does it make sense not to?
762 #if CONFIG_AMDMCT == 0
763 static void disable_hoist_memory(unsigned long hole_startk, int node_id)
767 struct dram_base_mask_t d;
774 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
775 struct mem_info *meminfo;
776 meminfo = &sysinfox->meminfo[node_id];
778 one_DCT = get_one_DCT(meminfo);
780 // 1. find which node has hole
781 // 2. change limit in that node.
782 // 3. change base and limit in later node
783 // 4. clear that node f0
785 // if there is not mem hole enabled, we need to change it's base instead
787 hole_sizek = (4*1024*1024) - hole_startk;
789 for(i=NODE_NUMS-1;i>node_id;i--) {
791 d = get_dram_base_mask(i);
793 if(!(d.mask & 1)) continue;
795 d.base -= (hole_sizek>>9);
796 d.mask -= (hole_sizek>>9);
797 set_dram_base_mask(i, d, sysconf.nodes);
799 if(get_DctSelHiEn(i) & 1) {
800 sel_m = get_DctSelBaseAddr(i);
801 sel_m -= hole_startk>>10;
802 set_DctSelBaseAddr(i, sel_m);
806 d = get_dram_base_mask(node_id);
807 dev = __f1_dev[node_id];
808 sel_hi_en = get_DctSelHiEn(node_id);
811 sel_m = get_DctSelBaseAddr(node_id);
813 hoist = pci_read_config32(dev, 0xf0);
815 pci_write_config32(dev, 0xf0, 0);
816 d.mask -= (hole_sizek>>9);
817 set_dram_base_mask(node_id, d, sysconf.nodes);
818 if(one_DCT || (sel_m >= (hole_startk>>10))) {
820 sel_m -= hole_startk>>10;
821 set_DctSelBaseAddr(node_id, sel_m);
825 set_DctSelBaseOffset(node_id, 0);
828 d.base -= (hole_sizek>>9);
829 d.mask -= (hole_sizek>>9);
830 set_dram_base_mask(node_id, d, sysconf.nodes);
833 sel_m -= hole_startk>>10;
834 set_DctSelBaseAddr(node_id, sel_m);
843 #if CONFIG_WRITE_HIGH_TABLES==1
847 #if CONFIG_GFXUMA == 1
848 extern uint64_t uma_memory_base, uma_memory_size;
850 static void add_uma_resource(struct device *dev, int index)
852 struct resource *resource;
854 printk(BIOS_DEBUG, "Adding UMA memory area\n");
855 resource = new_resource(dev, index);
856 resource->base = (resource_t) uma_memory_base;
857 resource->size = (resource_t) uma_memory_size;
858 resource->flags = IORESOURCE_MEM | IORESOURCE_RESERVE |
859 IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED;
863 static void amdfam10_domain_set_resources(device_t dev)
865 #if CONFIG_PCI_64BIT_PREF_MEM == 1
866 struct resource *io, *mem1, *mem2;
867 struct resource *res;
869 unsigned long mmio_basek;
873 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
874 struct hw_mem_hole_info mem_hole;
875 u32 reset_memhole = 1;
878 #if CONFIG_PCI_64BIT_PREF_MEM == 1
880 for(link = dev->link_list; link; link = link->next) {
881 /* Now reallocate the pci resources memory with the
882 * highest addresses I can manage.
884 mem1 = find_resource(dev, 1|(link->link_num<<2));
885 mem2 = find_resource(dev, 2|(link->link_num<<2));
887 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
888 mem1->base, mem1->limit, mem1->size, mem1->align);
889 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
890 mem2->base, mem2->limit, mem2->size, mem2->align);
892 /* See if both resources have roughly the same limits */
893 if (((mem1->limit <= 0xffffffff) && (mem2->limit <= 0xffffffff)) ||
894 ((mem1->limit > 0xffffffff) && (mem2->limit > 0xffffffff)))
896 /* If so place the one with the most stringent alignment first
898 if (mem2->align > mem1->align) {
899 struct resource *tmp;
904 /* Now place the memory as high up as it will go */
905 mem2->base = resource_max(mem2);
906 mem1->limit = mem2->base - 1;
907 mem1->base = resource_max(mem1);
910 /* Place the resources as high up as they will go */
911 mem2->base = resource_max(mem2);
912 mem1->base = resource_max(mem1);
915 printk(BIOS_DEBUG, "base1: 0x%08Lx limit1: 0x%08Lx size: 0x%08Lx align: %d\n",
916 mem1->base, mem1->limit, mem1->size, mem1->align);
917 printk(BIOS_DEBUG, "base2: 0x%08Lx limit2: 0x%08Lx size: 0x%08Lx align: %d\n",
918 mem2->base, mem2->limit, mem2->size, mem2->align);
921 for(res = &dev->resource_list; res; res = res->next)
923 res->flags |= IORESOURCE_ASSIGNED;
924 res->flags |= IORESOURCE_STORED;
925 report_resource_stored(dev, res, "");
929 pci_tolm = 0xffffffffUL;
930 for(link = dev->link_list; link; link = link->next) {
931 pci_tolm = my_find_pci_tolm(link, pci_tolm);
934 // FIXME handle interleaved nodes. If you fix this here, please fix
936 mmio_basek = pci_tolm >> 10;
937 /* Round mmio_basek to something the processor can support */
938 mmio_basek &= ~((1 << 6) -1);
940 // FIXME improve mtrr.c so we don't use up all of the mtrrs with a 64M
941 // MMIO hole. If you fix this here, please fix amdk8, too.
942 /* Round the mmio hole to 64M */
943 mmio_basek &= ~((64*1024) - 1);
945 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
946 /* if the hw mem hole is already set in raminit stage, here we will compare
947 * mmio_basek and hole_basek. if mmio_basek is bigger that hole_basek and will
948 * use hole_basek as mmio_basek and we don't need to reset hole.
949 * otherwise We reset the hole to the mmio_basek
952 mem_hole = get_hw_mem_hole_info();
954 // Use hole_basek as mmio_basek, and we don't need to reset hole anymore
955 if ((mem_hole.node_id != -1) && (mmio_basek > mem_hole.hole_startk)) {
956 mmio_basek = mem_hole.hole_startk;
960 #if CONFIG_AMDMCT == 0
961 //mmio_basek = 3*1024*1024; // for debug to meet boundary
964 if(mem_hole.node_id!=-1) {
965 /* We need to select CONFIG_HW_MEM_HOLE_SIZEK for raminit, it can not
966 make hole_startk to some basek too!
967 We need to reset our Mem Hole, because We want more big HOLE
969 Before that We need to disable mem hole at first, becase
970 memhole could already be set on i+1 instead
972 disable_hoist_memory(mem_hole.hole_startk, mem_hole.node_id);
975 #if CONFIG_HW_MEM_HOLE_SIZE_AUTO_INC == 1
976 // We need to double check if the mmio_basek is valid for hole
977 // setting, if it is equal to basek, we need to decrease it some
978 resource_t basek_pri;
979 for (i = 0; i < sysconf.nodes; i++) {
980 struct dram_base_mask_t d;
982 d = get_dram_base_mask(i);
984 if(!(d.mask &1)) continue;
986 basek = ((resource_t)(d.base & 0x1fffff00)) << 9;
987 if(mmio_basek == (u32)basek) {
988 mmio_basek -= (uin32_t)(basek - basek_pri); // increase mem hole size to make sure it is on middle of pri node
1001 for(i = 0; i < sysconf.nodes; i++) {
1002 struct dram_base_mask_t d;
1003 resource_t basek, limitk, sizek; // 4 1T
1004 d = get_dram_base_mask(i);
1006 if(!(d.mask & 1)) continue;
1007 basek = ((resource_t)(d.base & 0x1fffff00)) << 9; // could overflow, we may lost 6 bit here
1008 limitk = ((resource_t)((d.mask + 0x00000100) & 0x1fffff00)) << 9 ;
1009 sizek = limitk - basek;
1011 /* see if we need a hole from 0xa0000 to 0xbffff */
1012 if ((basek < ((8*64)+(8*16))) && (sizek > ((8*64)+(16*16)))) {
1013 ram_resource(dev, (idx | i), basek, ((8*64)+(8*16)) - basek);
1015 basek = (8*64)+(16*16);
1016 sizek = limitk - ((8*64)+(16*16));
1020 // printk(BIOS_DEBUG, "node %d : mmio_basek=%08x, basek=%08x, limitk=%08x\n", i, mmio_basek, basek, limitk);
1022 /* split the region to accomodate pci memory space */
1023 if ( (basek < 4*1024*1024 ) && (limitk > mmio_basek) ) {
1024 if (basek <= mmio_basek) {
1026 pre_sizek = mmio_basek - basek;
1028 ram_resource(dev, (idx | i), basek, pre_sizek);
1031 #if CONFIG_WRITE_HIGH_TABLES==1
1032 if (high_tables_base==0) {
1033 /* Leave some space for ACPI, PIRQ and MP tables */
1034 #if CONFIG_GFXUMA == 1
1035 high_tables_base = uma_memory_base - HIGH_MEMORY_SIZE;
1037 high_tables_base = (mmio_basek * 1024) - HIGH_MEMORY_SIZE;
1039 high_tables_size = HIGH_MEMORY_SIZE;
1040 printk(BIOS_DEBUG, " split: %dK table at =%08llx\n",
1041 HIGH_MEMORY_SIZE / 1024, high_tables_base);
1045 #if CONFIG_AMDMCT == 0
1046 #if CONFIG_HW_MEM_HOLE_SIZEK != 0
1048 struct sys_info *sysinfox = (struct sys_info *)((CONFIG_RAMTOP) - CONFIG_DCACHE_RAM_GLOBAL_VAR_SIZE); // in RAM
1049 struct mem_info *meminfo;
1050 meminfo = &sysinfox->meminfo[i];
1051 sizek += hoist_memory(mmio_basek,i, get_one_DCT(meminfo), sysconf.nodes);
1058 if ((basek + sizek) <= 4*1024*1024) {
1062 basek = 4*1024*1024;
1063 sizek -= (4*1024*1024 - mmio_basek);
1067 #if CONFIG_GFXUMA == 1
1068 /* Deduct uma memory before reporting because
1069 * this is what the mtrr code expects */
1070 sizek -= uma_memory_size / 1024;
1072 ram_resource(dev, (idx | i), basek, sizek);
1074 #if CONFIG_WRITE_HIGH_TABLES==1
1075 printk(BIOS_DEBUG, "%d: mmio_basek=%08lx, basek=%08llx, limitk=%08llx\n",
1076 i, mmio_basek, basek, limitk);
1077 if (high_tables_base==0) {
1078 /* Leave some space for ACPI, PIRQ and MP tables */
1079 #if CONFIG_GFXUMA == 1
1080 high_tables_base = uma_memory_base - HIGH_MEMORY_SIZE;
1082 high_tables_base = (limitk * 1024) - HIGH_MEMORY_SIZE;
1084 high_tables_size = HIGH_MEMORY_SIZE;
1089 #if CONFIG_GFXUMA == 1
1090 add_uma_resource(dev, 7);
1093 for(link = dev->link_list; link; link = link->next) {
1094 if (link->children) {
1095 assign_resources(link);
1100 static u32 amdfam10_domain_scan_bus(device_t dev, u32 max)
1105 /* Unmap all of the HT chains */
1106 for(reg = 0xe0; reg <= 0xec; reg += 4) {
1107 f1_write_config32(reg, 0);
1109 #if CONFIG_EXT_CONF_SUPPORT == 1
1111 for(i = 0; i< sysconf.nodes; i++) {
1113 for(index = 0; index < 64; index++) {
1114 pci_write_config32(__f1_dev[i], 0x110, index | (6<<28));
1115 pci_write_config32(__f1_dev[i], 0x114, 0);
1122 for(link = dev->link_list; link; link = link->next) {
1123 max = pci_scan_bus(link, PCI_DEVFN(CONFIG_CDB, 0), 0xff, max);
1126 /* Tune the hypertransport transaction for best performance.
1127 * Including enabling relaxed ordering if it is safe.
1130 for(i = 0; i < fx_devs; i++) {
1132 f0_dev = __f0_dev[i];
1133 if (f0_dev && f0_dev->enabled) {
1135 httc = pci_read_config32(f0_dev, HT_TRANSACTION_CONTROL);
1136 httc &= ~HTTC_RSP_PASS_PW;
1137 if (!dev->link_list->disable_relaxed_ordering) {
1138 httc |= HTTC_RSP_PASS_PW;
1140 printk(BIOS_SPEW, "%s passpw: %s\n",
1142 (!dev->link_list->disable_relaxed_ordering)?
1143 "enabled":"disabled");
1144 pci_write_config32(f0_dev, HT_TRANSACTION_CONTROL, httc);
1150 static struct device_operations pci_domain_ops = {
1151 .read_resources = amdfam10_domain_read_resources,
1152 .set_resources = amdfam10_domain_set_resources,
1153 .enable_resources = NULL,
1155 .scan_bus = amdfam10_domain_scan_bus,
1156 #if CONFIG_MMCONF_SUPPORT_DEFAULT
1157 .ops_pci_bus = &pci_ops_mmconf,
1159 .ops_pci_bus = &pci_cf8_conf1,
1163 static void sysconf_init(device_t dev) // first node
1165 sysconf.sblk = (pci_read_config32(dev, 0x64)>>8) & 7; // don't forget sublink1
1167 sysconf.ht_c_num = 0;
1169 unsigned ht_c_index;
1171 for(ht_c_index=0; ht_c_index<32; ht_c_index++) {
1172 sysconf.ht_c_conf_bus[ht_c_index] = 0;
1175 sysconf.nodes = ((pci_read_config32(dev, 0x60)>>4) & 7) + 1;
1176 #if CONFIG_MAX_PHYSICAL_CPUS > 8
1177 sysconf.nodes += (((pci_read_config32(dev, 0x160)>>4) & 7)<<3);
1180 sysconf.enabled_apic_ext_id = 0;
1181 sysconf.lift_bsp_apicid = 0;
1183 /* Find the bootstrap processors apicid */
1184 sysconf.bsp_apicid = lapicid();
1185 sysconf.apicid_offset = sysconf.bsp_apicid;
1187 #if (CONFIG_ENABLE_APIC_EXT_ID == 1)
1188 if (pci_read_config32(dev, 0x68) & (HTTC_APIC_EXT_ID|HTTC_APIC_EXT_BRD_CST))
1190 sysconf.enabled_apic_ext_id = 1;
1192 #if (CONFIG_APIC_ID_OFFSET>0)
1193 if(sysconf.enabled_apic_ext_id) {
1194 if(sysconf.bsp_apicid == 0) {
1195 /* bsp apic id is not changed */
1196 sysconf.apicid_offset = CONFIG_APIC_ID_OFFSET;
1198 sysconf.lift_bsp_apicid = 1;
1205 static void add_more_links(device_t dev, unsigned total_links)
1207 struct bus *link, *last = NULL;
1210 for (link = dev->link_list; link; link = link->next)
1214 int links = total_links - last->link_num;
1215 link_num = last->link_num;
1217 link = malloc(links*sizeof(*link));
1219 die("Couldn't allocate more links!\n");
1220 memset(link, 0, links*sizeof(*link));
1226 link = malloc(total_links*sizeof(*link));
1227 memset(link, 0, total_links*sizeof(*link));
1228 dev->link_list = link;
1231 for (link_num = link_num + 1; link_num < total_links; link_num++) {
1232 link->link_num = link_num;
1234 link->next = link + 1;
1241 static u32 cpu_bus_scan(device_t dev, u32 max)
1243 struct bus *cpu_bus;
1246 device_t pci_domain;
1253 int disable_siblings;
1254 unsigned ApicIdCoreIdSize;
1257 ApicIdCoreIdSize = (cpuid_ecx(0x80000008)>>12 & 0xf);
1258 if(ApicIdCoreIdSize) {
1259 siblings = (1<<ApicIdCoreIdSize)-1;
1261 siblings = 3; //quad core
1264 disable_siblings = !CONFIG_LOGICAL_CPUS;
1265 #if CONFIG_LOGICAL_CPUS == 1
1266 get_option(&disable_siblings, "multi_core");
1269 // How can I get the nb_cfg_54 of every node's nb_cfg_54 in bsp???
1270 nb_cfg_54 = read_nb_cfg_54();
1273 dev_mc = dev_find_slot(0, PCI_DEVFN(CONFIG_CDB, 0)); //0x00
1274 if(dev_mc && dev_mc->bus) {
1275 printk(BIOS_DEBUG, "%s found", dev_path(dev_mc));
1276 pci_domain = dev_mc->bus->dev;
1277 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1278 printk(BIOS_DEBUG, "\n%s move to ",dev_path(dev_mc));
1279 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1280 printk(BIOS_DEBUG, "%s",dev_path(dev_mc));
1283 printk(BIOS_DEBUG, " but it is not under pci_domain directly ");
1285 printk(BIOS_DEBUG, "\n");
1287 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1289 dev_mc = dev_find_slot(0, PCI_DEVFN(0x18, 0));
1290 if (dev_mc && dev_mc->bus) {
1291 printk(BIOS_DEBUG, "%s found\n", dev_path(dev_mc));
1292 pci_domain = dev_mc->bus->dev;
1293 if(pci_domain && (pci_domain->path.type == DEVICE_PATH_PCI_DOMAIN)) {
1294 if((pci_domain->link_list) && (pci_domain->link_list->children == dev_mc)) {
1295 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1296 dev_mc->bus->secondary = CONFIG_CBB; // move to 0xff
1297 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1299 printk(BIOS_DEBUG, "%s move to ",dev_path(dev_mc));
1300 dev_mc->path.pci.devfn -= PCI_DEVFN(0x18,0);
1301 printk(BIOS_DEBUG, "%s\n",dev_path(dev_mc));
1302 dev_mc = dev_mc->sibling;
1311 dev_mc = dev_find_slot(CONFIG_CBB, PCI_DEVFN(CONFIG_CDB, 0));
1313 printk(BIOS_ERR, "%02x:%02x.0 not found", CONFIG_CBB, CONFIG_CDB);
1317 sysconf_init(dev_mc);
1319 nodes = sysconf.nodes;
1321 #if CONFIG_CBB && (NODE_NUMS > 32)
1322 if(nodes>32) { // need to put node 32 to node 63 to bus 0xfe
1323 if(pci_domain->link_list && !pci_domain->link_list->next) {
1324 struct bus *new_link = new_link(pci_domain);
1325 pci_domain->link_list->next = new_link;
1326 new_link->link_num = 1;
1327 new_link->dev = pci_domain;
1328 new_link->children = 0;
1329 printk(BIOS_DEBUG, "%s links now 2\n", dev_path(pci_domain));
1331 pci_domain->link_list->next->secondary = CONFIG_CBB - 1;
1334 /* Find which cpus are present */
1335 cpu_bus = dev->link_list;
1336 for(i = 0; i < nodes; i++) {
1337 device_t cdb_dev, cpu;
1338 struct device_path cpu_path;
1339 unsigned busn, devn;
1343 devn = CONFIG_CDB+i;
1345 #if CONFIG_CBB && (NODE_NUMS > 32)
1349 pbus = pci_domain->link_list->next);
1353 /* Find the cpu's pci device */
1354 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1356 /* If I am probing things in a weird order
1357 * ensure all of the cpu's pci devices are found.
1360 for(fn = 0; fn <= 5; fn++) { //FBDIMM?
1361 cdb_dev = pci_probe_dev(NULL, pbus,
1362 PCI_DEVFN(devn, fn));
1364 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 0));
1367 /* Ok, We need to set the links for that device.
1368 * otherwise the device under it will not be scanned
1371 #if CONFIG_HT3_SUPPORT==1
1376 add_more_links(cdb_dev, linknum);
1379 cores_found = 0; // one core
1380 cdb_dev = dev_find_slot(busn, PCI_DEVFN(devn, 3));
1381 if (cdb_dev && cdb_dev->enabled) {
1382 j = pci_read_config32(cdb_dev, 0xe8);
1383 cores_found = (j >> 12) & 3; // dev is func 3
1385 cores_found |= (j >> 13) & 4;
1386 printk(BIOS_DEBUG, " %s siblings=%d\n", dev_path(cdb_dev), cores_found);
1390 if(disable_siblings) {
1397 for (j = 0; j <=jj; j++ ) {
1399 /* Build the cpu device path */
1400 cpu_path.type = DEVICE_PATH_APIC;
1401 cpu_path.apic.apic_id = i * (nb_cfg_54?(siblings+1):1) + j * (nb_cfg_54?1:64); // ?
1403 /* See if I can find the cpu */
1404 cpu = find_dev_path(cpu_bus, &cpu_path);
1406 /* Enable the cpu if I have the processor */
1407 if (cdb_dev && cdb_dev->enabled) {
1409 cpu = alloc_dev(cpu_bus, &cpu_path);
1416 /* Disable the cpu if I don't have the processor */
1417 if (cpu && (!cdb_dev || !cdb_dev->enabled)) {
1421 /* Report what I have done */
1423 cpu->path.apic.node_id = i;
1424 cpu->path.apic.core_id = j;
1425 #if (CONFIG_ENABLE_APIC_EXT_ID == 1) && (CONFIG_APIC_ID_OFFSET>0)
1426 if(sysconf.enabled_apic_ext_id) {
1427 if(sysconf.lift_bsp_apicid) {
1428 cpu->path.apic.apic_id += sysconf.apicid_offset;
1431 if (cpu->path.apic.apic_id != 0)
1432 cpu->path.apic.apic_id += sysconf.apicid_offset;
1436 printk(BIOS_DEBUG, "CPU: %s %s\n",
1437 dev_path(cpu), cpu->enabled?"enabled":"disabled");
1445 static void cpu_bus_init(device_t dev)
1447 initialize_cpus(dev->link_list);
1450 static void cpu_bus_noop(device_t dev)
1454 static void cpu_bus_read_resources(device_t dev)
1458 static void cpu_bus_set_resources(device_t dev)
1460 struct resource *resource = find_resource(dev, 0xc0010058);
1462 report_resource_stored(dev, resource, " <mmconfig>");
1464 pci_dev_set_resources(dev);
1467 static struct device_operations cpu_bus_ops = {
1468 .read_resources = cpu_bus_read_resources,
1469 .set_resources = cpu_bus_set_resources,
1470 .enable_resources = cpu_bus_noop,
1471 .init = cpu_bus_init,
1472 .scan_bus = cpu_bus_scan,
1475 static void root_complex_enable_dev(struct device *dev)
1477 /* Set the operations if it is a special bus type */
1478 if (dev->path.type == DEVICE_PATH_PCI_DOMAIN) {
1479 dev->ops = &pci_domain_ops;
1481 else if (dev->path.type == DEVICE_PATH_APIC_CLUSTER) {
1482 dev->ops = &cpu_bus_ops;
1486 struct chip_operations northbridge_amd_amdfam10_root_complex_ops = {
1487 CHIP_NAME("AMD FAM10 Root Complex")
1488 .enable_dev = root_complex_enable_dev,