* (c) 2003-2004 by SuSE Linux AG
*
* (c) 2004 Tyan Computer
- * 2004.12 yhlu added support to create support to create routing table dynamically.
- * it also support 8 ways too. (8 ways ladder or 8 ways crossbar)
+ * 2004.12 yhlu added support to create routing table dynamically.
+ * it also support 8 ways too. (8 ways ladder or 8 ways crossbar)
+ *
* This code is licensed under GPL.
*/
*
* nodes : 1 2 4 6 8
* org. : 1x1 2x1 2x2 2x3 2x4
- *
+ Ladder:
+ CPU7-------------CPU6
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ CPU5-------------CPU4
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ CPU3-------------CPU2
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ CPU1-------------CPU0
+ CROSS_BAR_47_56:
+ CPU7-------------CPU6
+ | \____ ___/ |
+ | \ / |
+ | \/ |
+ | /\ |
+ | / \ |
+ | ____/ \___ |
+ CPU5 CPU4
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ CPU3-------------CPU2
+ | |
+ | |
+ | |
+ | |
+ | |
+ | |
+ CPU1-------------CPU0
*/
#include <device/pci_def.h>
#include "arch/romcc_io.h"
#include "amdk8.h"
-/* when generating a temporary row configuration we
- * don't want broadcast to be enabled for that node.
- */
-
#define enable_bsp_routing() enable_routing(0)
#define NODE_HT(x) PCI_DEV(0,24+x,0)
typedef uint8_t u8;
typedef uint32_t u32;
-typedef int bool;
-#define TRUE (-1)
-#define FALSE (0)
+#ifndef CROSS_BAR_47_56
+ #define CROSS_BAR_47_56 0
+#endif
-static u8 link_to_register(int ldt)
-{
- /*
- * [ 0: 3] Request Route
- * [0] Route to this node
- * [1] Route to Link 0
- * [2] Route to Link 1
- * [3] Route to Link 2
- */
+#ifndef TRY_HIGH_FIRST
+ #define TRY_HIGH_FIRST 0
+#endif
- if (ldt&0x08) return 0x40;
- if (ldt&0x04) return 0x20;
- if (ldt&0x02) return 0x00;
-
- /* we should never get here */
- print_spew("Unknown Link\n");
- return 0;
+
+static inline void print_linkn (const char *strval, uint8_t byteval)
+{
+#if 1
+ print_debug(strval); print_debug_hex8(byteval); print_debug("\r\n");
+#endif
}
static void disable_probes(void)
/* Enable routing table */
print_spew("Enabling routing table for node ");
print_spew_hex8(node);
-
+
val=pci_read_config32(NODE_HT(node), 0x6c);
val &= ~((1<<1)|(1<<0));
pci_write_config32(NODE_HT(node), 0x6c, val);
{
pci_write_config32(NODE_HT(node), 0x40+(row<<2), value);
}
+
+#if CONFIG_MAX_CPUS > 1
+static u8 link_to_register(int ldt)
+{
+ /*
+ * [ 0: 3] Request Route
+ * [0] Route to this node
+ * [1] Route to Link 0
+ * [2] Route to Link 1
+ * [3] Route to Link 2
+ */
+
+ if (ldt&0x08) return 0x40;
+ if (ldt&0x04) return 0x20;
+ if (ldt&0x02) return 0x00;
+
+ /* we should never get here */
+ print_spew("Unknown Link\n");
+ return 0;
+}
+
static u32 get_row(u8 node, u8 row)
{
return pci_read_config32(NODE_HT(node), 0x40+(row<<2));
static int link_connection(u8 src, u8 dest)
{
- /* we generate the needed link information from the rows
- * by taking the Request Route of the according row.
- */
-
- return get_row(src, dest) & 0x0f;
+ return get_row(src, dest) & 0x0f;
}
-
-#if CONFIG_MAX_CPUS > 1
-
static void rename_temp_node(u8 node)
{
uint32_t val;
print_spew(" done.\r\n");
}
-static bool check_connection(u8 dest)
+static int check_connection(u8 dest)
{
/* See if we have a valid connection to dest */
u32 val;
return needs_reset;
}
-static void setup_row_local(u8 source, u8 row) // source will be 7 when it is for temp use
+static void setup_row_local(u8 source, u8 row) /* source will be 7 when it is for temp use*/
{
unsigned linkn;
uint32_t val;
val = 1;
- for(linkn = 0; linkn<3; linkn++) {
- unsigned regpos;
+ for(linkn = 0; linkn<3; linkn++) {
+ unsigned regpos;
uint32_t reg;
- regpos = 0x98 + 0x20 * linkn;
- reg = pci_read_config32(NODE_HT(source), regpos);
- if ((reg & 0x17) != 3) continue; // it is not conherent or not connected
+ regpos = 0x98 + 0x20 * linkn;
+ reg = pci_read_config32(NODE_HT(source), regpos);
+ if ((reg & 0x17) != 3) continue; /* it is not conherent or not connected*/
val |= 1<<(linkn+1);
}
val <<= 16;
fill_row(source,row, val);
}
-static void setup_row_direct(u8 source, u8 dest, u8 linkn)
+static void setup_row_direct_x(u8 temp, u8 source, u8 dest, u8 linkn)
{
uint32_t val;
uint32_t val_s;
val = 1<<(linkn+1);
- val |= 1<<(linkn+1+8); //for direct connect response route should equal to request table
+ val |= 1<<(linkn+1+8); /*for direct connect response route should equal to request table*/
-#if !CROSS_BAR_47_56
- if((source &1)!=(dest &1)){
+ if(((source &1)!=(dest &1))
+#if CROSS_BAR_47_56
+ && (source<4) && (dest<4)
+#endif
+ ){
val |= (1<<16);
} else {
- val_s = get_row(source, source);
- val |= ((val_s>>16) - (1<<(linkn+1)))<<16;
+ /*for CROSS_BAR_47_56 47, 74, 56, 65 should be here too*/
+ val_s = get_row(temp, source);
+ val |= ((val_s>>16) - (1<<(linkn+1)))<<16;
}
-#else
- if(((source &1)!=(dest &1)) && (source<4) &&(dest<<4)){
- val |= (1<<16);
- } else {
- //for CROSS_BAR_47_56 47, 74, 56, 65 should be here too
- val_s = get_row(source, source);
- val |= ((val_s>>16) - (1<<(linkn+1)))<<16;
- }
-#endif
+ fill_row(temp,dest, val );
+}
+
+static void setup_row_direct(u8 source, u8 dest, u8 linkn){
+ setup_row_direct_x(source, source, dest, linkn);
+}
- fill_row(source,dest, val);
+static void setup_remote_row_direct(u8 source, u8 dest, u8 linkn){
+ setup_row_direct_x(7, source, dest, linkn);
}
+
static uint8_t get_linkn_first(uint8_t byte)
{
- if(byte & 0x02) { byte = 0; }
- else if(byte & 0x04) { byte = 1; }
- else if(byte & 0x08) { byte = 2; }
- return byte;
-}
+ if(byte & 0x02) { byte = 0; }
+ else if(byte & 0x04) { byte = 1; }
+ else if(byte & 0x08) { byte = 2; }
+ return byte;
+}
+
static uint8_t get_linkn_last(uint8_t byte)
{
- if(byte & 0x02) { byte &= 0x0f; byte |= 0x00; }
- if(byte & 0x04) { byte &= 0x0f; byte |= 0x10; }
- if(byte & 0x08) { byte &= 0x0f; byte |= 0x20; }
- return byte>>4;
+ if(byte & 0x02) { byte &= 0x0f; byte |= 0x00; }
+ if(byte & 0x04) { byte &= 0x0f; byte |= 0x10; }
+ if(byte & 0x08) { byte &= 0x0f; byte |= 0x20; }
+ return byte>>4;
}
+
static uint8_t get_linkn_last_count(uint8_t byte)
{
- byte &= 0x3f;
- if(byte & 0x02) { byte &= 0xcf; byte |= 0x00; byte+=0x40; }
- if(byte & 0x04) { byte &= 0xcf; byte |= 0x10; byte+=0x40; }
- if(byte & 0x08) { byte &= 0xcf; byte |= 0x20; byte+=0x40; }
- return byte>>4;
+ byte &= 0x3f;
+ if(byte & 0x02) { byte &= 0xcf; byte |= 0x00; byte+=0x40; }
+ if(byte & 0x04) { byte &= 0xcf; byte |= 0x10; byte+=0x40; }
+ if(byte & 0x08) { byte &= 0xcf; byte |= 0x20; byte+=0x40; }
+ return byte>>4;
+}
+
+static void setup_temp_row(u8 source, u8 dest)
+{
+ /* copy val from (source, dest) to (source,7) */
+ fill_row(source,7,get_row(source,dest));
+}
+
+static void clear_temp_row(u8 source)
+{
+ fill_row(source, 7, DEFAULT);
+}
+
+static void setup_remote_node(u8 node)
+{
+ static const uint8_t pci_reg[] = {
+ 0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c,
+ 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
+ 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc,
+ 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8,
+ 0xc4, 0xcc, 0xd4, 0xdc,
+ 0xc0, 0xc8, 0xd0, 0xd8,
+ 0xe0, 0xe4, 0xe8, 0xec,
+ };
+ int i;
+
+ print_spew("setup_remote_node: ");
+
+ /* copy the default resource map from node 0 */
+ for(i = 0; i < sizeof(pci_reg)/sizeof(pci_reg[0]); i++) {
+ uint32_t value;
+ uint8_t reg;
+ reg = pci_reg[i];
+ value = pci_read_config32(NODE_MP(0), reg);
+ pci_write_config32(NODE_MP(7), reg, value);
+
+ }
+ print_spew("done\r\n");
}
-#if CONFIG_MAX_CPUS>2
+#endif /* CONFIG_MAX_CPUS > 1*/
+
+
+#if CONFIG_MAX_CPUS > 2
#if !CROSS_BAR_47_56
-static void setup_row_indirect(u8 source, u8 dest, u8 gateway)
+static void setup_row_indirect_x(u8 temp, u8 source, u8 dest, u8 gateway)
#else
-static void setup_row_indirect(u8 source, u8 dest, u8 gateway, u8 diff)
+static void setup_row_indirect_x(u8 temp, u8 source, u8 dest, u8 gateway, u8 diff)
#endif
{
- //for indirect connection, we need to compute the val from val_s(source, source), and val_g(source, gateway)
+ /*for indirect connection, we need to compute the val from val_s(source, source), and val_g(source, gateway) */
uint32_t val_s;
uint32_t val;
- val_s = get_row(source, source);
- val = get_row(source, gateway);
+#if !CROSS_BAR_47_56
+ u8 diff;
+#endif
+ val_s = get_row(temp, source);
+ val = get_row(temp, gateway);
val &= 0xffff;
- val_s >>=16;
- val_s &=0xfe;
+ val_s >>= 16;
+ val_s &= 0xfe;
+
#if !CROSS_BAR_47_56
- if(((source&1)!=(dest &1)) && (val_s!=(val&0xff)) ) { // use another connect as response
- val_s -= val & 0xff;
-#if CONFIG_MAX_CPUS>4
+ diff = ((source&1)!=(dest &1));
+#endif
+
+ if(diff && (val_s!=(val&0xff)) ) { /* use another connect as response*/
+ val_s -= val & 0xff;
+#if CONFIG_MAX_CPUS > 4
uint8_t byte;
- // Some node have two links left
+ /* Some node have two links left
+ * don't worry we only have (2, (3 as source need to handle
+ */
byte = val_s;
byte = get_linkn_last_count(byte);
- if((byte>>2)>1) { // make sure not the corner
+ if((byte>>2)>1) { /* make sure not the corner*/
if(source<dest) {
- val_s-=link_connection(source, source-2); // - down
+ val_s-=link_connection(temp, source-2); /* -down*/
} else {
- val_s-=link_connection(source, source+2); // - up
+ val_s-=link_connection(temp, source+2); /* -up*/
}
}
#endif
val |= (val_s<<8);
}
- if((source&1)!=(dest &1)) { // different rungs
+ if(diff) { /* cross rung?*/
val |= (1<<16);
}
else {
- val_s = get_row(source, source);
- val |= ((val_s>>16) - link_connection(source, gateway))<<16;
+ val_s = get_row(temp, source);
+ val |= ((val_s>>16) - link_connection(temp, gateway))<<16;
}
+ fill_row(temp, dest, val);
-#else
- if(diff && (val_s!=(val&0xff)) ) { // use another connect as response
- val_s -= val & 0xff;
-#if CONFIG_MAX_CPUS>4
- uint8_t byte;
- // Some node have two links left
- // don't worry we only have (2, (3 as source need to handle
- byte = val_s;
- byte = get_linkn_last_count(byte);
- if((byte>>2)>1) { // make sure not the corner
- if(source<dest) {
- val_s-=link_connection(source, source-2); // -down
- } else {
- val_s-=link_connection(source, source+2); // -up
- }
- }
-#endif
- val &= 0xff;
- val |= (val_s<<8);
- }
-
- if(diff) { // cross rung?
- val |= (1<<16);
- }
- else {
- val_s = get_row(source, source);
- val |= ((val_s>>16) - link_connection(source, gateway))<<16;
- }
-
-#endif
-
- fill_row(source, dest, val);
+}
+#if !CROSS_BAR_47_56
+static void setup_row_indirect(u8 source, u8 dest, u8 gateway)
+{
+ setup_row_indirect_x(source, source, dest, gateway);
+}
+#else
+static void setup_row_indirect(u8 source, u8 dest, u8 gateway, u8 diff)
+{
+ setup_row_indirect_x(source, source, dest, gateway, diff);
}
+#endif
+
static void setup_row_indirect_group(const u8 *conn, int num)
{
- int i;
- for(i=0; i<num; i+=4) {
+ int i;
+
#if !CROSS_BAR_47_56
- setup_row_indirect(conn[i*3], conn[i*3+1],conn[i*3+2]);
+ for(i=0; i<num; i+=3) {
+ setup_row_indirect(conn[i], conn[i+1],conn[i+2]);
#else
- setup_row_indirect(conn[i*4], conn[i*4+1],conn[i*4+2], conn[i*4+3]);
-#endif
-
- }
-}
+ for(i=0; i<num; i+=4) {
+ setup_row_indirect(conn[i], conn[i+1],conn[i+2], conn[i+3]);
#endif
-static void setup_temp_row(u8 source, u8 dest)
-{
- // copy val from (source, dest) to (source,7)
- fill_row(source,7,get_row(source,dest));
+ }
}
-static void clear_temp_row(u8 source)
+#if !CROSS_BAR_47_56
+static void setup_remote_row_indirect(u8 source, u8 dest, u8 gateway)
{
- fill_row(source, 7, DEFAULT);
+ setup_row_indirect_x(7, source, dest, gateway);
}
-
-static void setup_remote_row_direct(u8 source, u8 dest, u8 linkn)
+#else
+static void setup_remote_row_indirect(u8 source, u8 dest, u8 gateway, u8 diff)
{
- uint32_t val;
- uint32_t val_s;
- val = 1<<(linkn+1);
- val |= 1<<(linkn+1+8); //for direct connect response route should equal to request table
-
-#if !CROSS_BAR_47_56
- if((source &1)!=(dest &1)){
- val |= (1<<16);
- } else {
- //for CROSS_BAR_47_56 47, 74, 56, 65 should be here too
- val_s = get_row(7, source);
- val |= ((val_s>>16) - (1<<(linkn+1)))<<16;
- }
-#else
- if(((source &1)!=(dest &1)) && (source<4) &&(dest<<4)){
- val |= (1<<16);
- } else {
- //for CROSS_BAR_47_56 47, 74, 56, 65 should be here too
- val_s = get_row(7, source);
- val |= ((val_s>>16) - (1<<(linkn+1)))<<16;
- }
-
-#endif
- fill_row(7,dest, val );
-}
+ setup_row_indirect_x(7, source, dest, gateway, diff);
+}
+#endif
-static void setup_remote_node(u8 node)
+static void setup_remote_row_indirect_group(const u8 *conn, int num)
{
- static const uint8_t pci_reg[] = {
- 0x44, 0x4c, 0x54, 0x5c, 0x64, 0x6c, 0x74, 0x7c,
- 0x40, 0x48, 0x50, 0x58, 0x60, 0x68, 0x70, 0x78,
- 0x84, 0x8c, 0x94, 0x9c, 0xa4, 0xac, 0xb4, 0xbc,
- 0x80, 0x88, 0x90, 0x98, 0xa0, 0xa8, 0xb0, 0xb8,
- 0xc4, 0xcc, 0xd4, 0xdc,
- 0xc0, 0xc8, 0xd0, 0xd8,
- 0xe0, 0xe4, 0xe8, 0xec,
- };
int i;
- print_spew("setup_remote_node: ");
-
- /* copy the default resource map from node 0 */
- for(i = 0; i < sizeof(pci_reg)/sizeof(pci_reg[0]); i++) {
- uint32_t value;
- uint8_t reg;
- reg = pci_reg[i];
- value = pci_read_config32(NODE_MP(0), reg);
- pci_write_config32(NODE_MP(7), reg, value);
-
+#if !CROSS_BAR_47_56
+ for(i=0; i<num; i+=3) {
+ setup_remote_row_indirect(conn[i], conn[i+1],conn[i+2]);
+#else
+ for(i=0; i<num; i+=4) {
+ setup_remote_row_indirect(conn[i], conn[i+1],conn[i+2], conn[i+3]);
+#endif
}
- print_spew("done\r\n");
}
-#endif
+#endif /*CONFIG_MAX_CPUS > 2*/
+
static void setup_uniprocessor(void)
{
print_spew("Enabling UP settings\r\n");
-#if CONFIG_LOGICAL_CPUS==1
- unsigned tmp = (pci_read_config32(NODE_MC(0), 0xe8) >> 12) & 3;
- if (tmp>0) return;
-#endif
disable_probes();
}
#if CONFIG_MAX_CPUS > 2
static int optimize_connection_group(const u8 *opt_conn, int num) {
- int needs_reset = 0;
- int i;
- for(i=0; i<num; i+=2) {
- needs_reset = optimize_connection(
- NODE_HT(opt_conn[i*2]), 0x80 + link_to_register(link_connection(opt_conn[i*2],opt_conn[i*2+1])),
- NODE_HT(opt_conn[i*2+1]), 0x80 + link_to_register(link_connection(opt_conn[i*2+1],opt_conn[i*2])) );
- }
- return needs_reset;
+ int needs_reset = 0;
+ int i;
+ for(i=0; i<num; i+=2) {
+ needs_reset = optimize_connection(
+ NODE_HT(opt_conn[i]), 0x80 + link_to_register(link_connection(opt_conn[i],opt_conn[i+1])),
+ NODE_HT(opt_conn[i+1]), 0x80 + link_to_register(link_connection(opt_conn[i+1],opt_conn[i])) );
+ }
+ return needs_reset;
}
#endif
#if CONFIG_MAX_CPUS > 1
-static struct setup_smp_result setup_smp(void)
+static struct setup_smp_result setup_smp2(void)
{
struct setup_smp_result result;
u8 byte;
result.nodes = 2;
result.needs_reset = 0;
- print_spew("Enabling SMP settings\r\n");
-
- setup_row_local(0, 0); // it will update the broadcast RT
+ setup_row_local(0, 0); /* it will update the broadcast RT*/
val = get_row(0,0);
byte = (val>>16) & 0xfe;
- if(byte<0x2) { // no coherent connection so get out.
+ if(byte<0x2) { /* no coherent connection so get out.*/
result.nodes = 1;
return result;
}
/* Setup and check a temporary connection to node 1 */
- //find out linkn
-
- byte = get_linkn_first(byte);
+#if TRY_HIGH_FIRST == 1
+ byte = get_linkn_last(byte); /* Max Link to node1 */
+#else
+ byte = get_linkn_first(byte); /*Min Link to node1 --- according to AMD*/
+#endif
+ print_linkn("(0,1) byte=", byte);
setup_row_direct(0,1, byte);
setup_temp_row(0, 1);
if (!check_connection(7)) {
print_spew("No connection to Node 1.\r\n");
- setup_uniprocessor(); /* and get up working */
result.nodes = 1;
return result;
}
/* We found 2 nodes so far */
val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
+ byte = (val>>2) & 0x3; /*get default link on node7 to node0*/
+ print_linkn("(1,0) byte=", byte);
setup_row_local(7,1);
setup_remote_row_direct(1, 0, byte);
-#if CONFIG_MAX_CPUS>4
+#if CONFIG_MAX_CPUS > 4
val = get_row(7,1);
- byte = (val>>16) & 0xfe;
+ byte = (val>>16) & 0xfe;
byte = get_linkn_last_count(byte);
- if((byte>>2)==3) { // Oh! we need to treat it as cpu2.
- val = get_row(0,0);
- byte = (val>>16) & 0xfe;
- byte = get_linkn_last(byte);
- setup_row_direct(0,1, byte);
- setup_temp_row(0, 1);
-
- if (!check_connection(7)) {
- print_spew("No connection to Node 1.\r\n");
- setup_uniprocessor(); /* and get up working */
- result.nodes = 1;
- return result;
- }
-
- /* We found 2 nodes so far */
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
- setup_row_local(7,1);
- setup_remote_row_direct(1, 0, byte);
- }
+ if((byte>>2)==3) { /* Oh! we need to treat it as node2. So use another link*/
+ val = get_row(0,0);
+ byte = (val>>16) & 0xfe;
+#if TRY_HIGH_FIRST == 1
+ byte = get_linkn_first(byte); /* Min link to Node1 */
+#else
+ byte = get_linkn_last(byte); /* Max link to Node1*/
+#endif
+ print_linkn("-->(0,1) byte=", byte);
+ setup_row_direct(0,1, byte);
+ setup_temp_row(0, 1);
+
+ if (!check_connection(7)) {
+ print_spew("No connection to Node 1.\r\n");
+ result.nodes = 1;
+ return result;
+ }
+
+ /* We found 2 nodes so far */
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on node7 to node0*/
+ print_linkn("-->(1,0) byte=", byte);
+ setup_row_local(7,1);
+ setup_remote_row_direct(1, 0, byte);
+ }
#endif
setup_remote_node(1); /* Setup the regs on the remote node */
- rename_temp_node(1); /* Rename Node 7 to Node 1 */
- enable_routing(1); /* Enable routing on Node 1 */
+ rename_temp_node(1); /* Rename Node 7 to Node 1 */
+ enable_routing(1); /* Enable routing on Node 1 */
#if 0
- // don't need and it is done by clear_dead_links
+ /*don't need and it is done by clear_dead_links */
clear_temp_row(0);
#endif
-
+
result.needs_reset = optimize_connection(
NODE_HT(0), 0x80 + link_to_register(link_connection(0,1)),
NODE_HT(1), 0x80 + link_to_register(link_connection(1,0)) );
+
+ return result;
+}
+#endif /*CONFIG_MAX_CPUS > 1 */
+
#if CONFIG_MAX_CPUS > 2
+
+static struct setup_smp_result setup_smp4(int needs_reset)
+{
+ struct setup_smp_result result;
+ u8 byte;
+ uint32_t val;
+
result.nodes=4;
+ result.needs_reset = needs_reset;
/* Setup and check temporary connection from Node 0 to Node 2 */
- val = get_row(0,0);
- byte = ((val>>16) & 0xfe) - link_connection(0,1);
+ val = get_row(0,0);
+ byte = ((val>>16) & 0xfe) - link_connection(0,1);
byte = get_linkn_last_count(byte);
-
- //find out linkn
- if((byte>>2)==0) { // We should have two coherent for 4p and above
+
+ if((byte>>2)==0) { /* We should have two coherent for 4p and above*/
result.nodes = 2;
return result;
}
- byte &= 3; // bit [3,2] is count-1
- setup_row_direct(0, 2, byte);
+
+ byte &= 3; /* bit [3,2] is count-1*/
+ print_linkn("(0,2) byte=", byte);
+ setup_row_direct(0, 2, byte); /*(0,2) direct link done*/
setup_temp_row(0, 2);
if (!check_connection(7) ) {
}
/* We found 3 nodes so far. Now setup a temporary
- * connection from node 0 to node 3 via node 1
- */
+ * connection from node 0 to node 3 via node 1
+ */
setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
- /* here should setup_row_direct(1,3) at first, before that we should find the link in cpu 1 to 3*/
+ /* here should setup_row_direct(1,3) at first, before that we should find the link in node 1 to 3*/
val = get_row(1,1);
byte = ((val>>16) & 0xfe) - link_connection(1,0);
byte = get_linkn_first(byte);
- setup_row_direct(1,3,byte);
+ print_linkn("(1,3) byte=", byte);
+ setup_row_direct(1,3,byte); /* (1, 3) direct link done*/
setup_temp_row(1,3); /* temp. link between nodes 1 and 3 */
if (!check_connection(7)) {
}
/* We found 4 nodes so far. Now setup all nodes for 4p */
- /* for indirect we will use clockwise routing */
#if !CROSS_BAR_47_56
- static const u8 conn4_1[] = {
- 0,3,1,
- 1,2,3,
- };
+ static const u8 conn4_1[] = {
+ 0,3,2,
+ 1,2,3,
+ };
#else
- static const u8 conn4_1[] = {
- 0,3,1,1,
- 1,2,3,1,
- };
+ static const u8 conn4_1[] = {
+ 0,3,2,1,
+ 1,2,3,1,
+ };
#endif
setup_row_indirect_group(conn4_1, sizeof(conn4_1)/sizeof(conn4_1[0]));
-
+
setup_temp_row(0,2);
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 0*/
+ print_linkn("(2,0) byte=", byte);
- setup_row_local(7,2);
- setup_remote_row_direct(2, 0, byte);
- setup_remote_node(2); /* Setup the regs on the remote node */
+ setup_row_local(7,2);
+ setup_remote_row_direct(2, 0, byte);
+ setup_remote_node(2); /* Setup the regs on the remote node */
+#if !CROSS_BAR_47_56
+ static const u8 conn4_2[] = {
+ 2,1,0,
+ };
+#else
+ static const u8 conn4_2[] = {
+ 2,1,0,1,
+ };
+#endif
+ setup_remote_row_indirect_group(conn4_2, sizeof(conn4_2)/sizeof(conn4_2[0]));
- rename_temp_node(2); /* Rename Node 7 to Node 2 */
- enable_routing(2); /* Enable routing on Node 2 */
+ rename_temp_node(2); /* Rename Node 7 to Node 2 */
+ enable_routing(2); /* Enable routing on Node 2 */
-
setup_temp_row(0,1);
setup_temp_row(1,3);
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 1*/
+ print_linkn("(3,1) byte=", byte);
- setup_row_local(7,3);
- setup_remote_row_direct(3, 1, byte);
- setup_remote_node(3); /* Setup the regs on the remote node */
+ setup_row_local(7,3);
+ setup_remote_row_direct(3, 1, byte);
+ setup_remote_node(3); /* Setup the regs on the remote node */
- rename_temp_node(3);
- enable_routing(3); /* enable routing on node 3 (temp.) */
+#if !CROSS_BAR_47_56
+ static const u8 conn4_3[] = {
+ 3,0,1,
+ };
+#else
+ static const u8 conn4_3[] = {
+ 3,0,1,1,
+ };
+#endif
+ setup_remote_row_indirect_group(conn4_3, sizeof(conn4_3)/sizeof(conn4_3[0]));
/* We need to init link between 2, and 3 direct link */
val = get_row(2,2);
byte = ((val>>16) & 0xfe) - link_connection(2,0);
byte = get_linkn_last_count(byte);
-#if CONFIG_MAX_CPUS>4
- // We need to find out which link it so CPU3
- // methods is try to access another 7 actully it is cpu4
- if((byte>>2)==2) { // one to CPU3, one to cpu0, one to CPU4
- setup_temp_row(0,2);
- setup_row_direct(2, 4, byte);
- setup_temp_row(2, 4);
-
- if (check_connection(7)) { // so the link is to CPU4
- //We need to re compute it
- val = get_row(2,2);
- byte = (val>>16) & 0xfe;
- byte = get_linkn_first(byte);
- }
- }
-#endif
+ print_linkn("(2,3) byte=", byte & 3);
+
setup_row_direct(2,3, byte & 0x3);
+ setup_temp_row(0,2);
+ setup_temp_row(2,3);
+ check_connection(7); /* to 3*/
+
+#if CONFIG_MAX_CPUS > 4
+ /* We need to find out which link is to node3 */
- val = get_row(3,3);
- byte = ((val>>16) & 0xfe) - link_connection(3,1);
- byte = get_linkn_last_count(byte);
-#if CONFIG_MAX_CPUS>4
- // We need to find out which link it so CPU2
- // methods is try to access another 7 actully it is cpu5
- if((byte>>2)==2) { // one to CPU2, one to cpu1, one to CPU5
- setup_temp_row(0,1);
- setup_temp_row(1,3);
- setup_row_direct(3, 5, byte);
- setup_temp_row(3, 5);
-
- if (check_connection(7)) { // so the link is to CPU5
- //We need to re compute it
- val = get_row(3, 3);
- byte = (val>>16) & 0xfe;
- byte = get_linkn_first(byte);
- }
- }
+ if((byte>>2)==2) { /* one to node3, one to node0, one to node4*/
+ val = get_row(7,3);
+ if((val>>16) == 1) { /* that link is to node4, because via node3 it has been set, recompute it*/
+ val = get_row(2,2);
+ byte = ((val>>16) & 0xfe) - link_connection(2,0);
+ byte = get_linkn_first(byte);
+ print_linkn("-->(2,3) byte=", byte);
+ setup_row_direct(2,3,byte);
+ setup_temp_row(2,3);
+ check_connection(7); /* to 3*/
+ }
+ }
#endif
- setup_row_direct(3,2, byte & 0x3);
- /* Set indirect connection to 0, and 1 for indirect we will use clockwise routing */
-#if !CROSS_BAR_47_56
- static const u8 conn4_2[] = {
- 2,1,0,
- 3,0,2,
- };
-#else
- static const u8 conn4_2[] = {
- 2,1,0,1,
- 3,0,2,1,
- };
-#endif
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 2*/
+ print_linkn("(3,2) byte=", byte);
+ setup_remote_row_direct(3,2, byte);
+
+/* ready to enable RT for Node 3 */
+ rename_temp_node(3);
+ enable_routing(3); /* enable routing on node 3 (temp.) */
- setup_row_indirect_group(conn4_2, sizeof(conn4_2)/sizeof(conn4_2[0]));
-
- // We need to do sth to reverse work for setup_temp_row (0,1) (1,3)
#if 0
- // it will be done by clear_dead_links
+ /*We need to do sth to reverse work for setup_temp_row (0,1) (1,3) */
+ /* it will be done by clear_dead_links */
clear_temp_row(0);
clear_temp_row(1);
#endif
};
result.needs_reset = optimize_connection_group(opt_conn4, sizeof(opt_conn4)/sizeof(opt_conn4[0]));
+
+ return result;
+
+}
#endif /* CONFIG_MAX_CPUS > 2 */
#if CONFIG_MAX_CPUS > 4
- result.nodes=6;
-
- /* Setup and check temporary connection from Node 0 to Node 4 via 2 */
- val = get_row(2,2);
- byte = ((val>>16) & 0xfe) - link_connection(2,3) - link_connection(2,0);
- byte = get_linkn_last_count(byte);
-
- //find out linkn
- if((byte>>2)==0) { // We should have two coherent for 4p and above
- result.nodes = 4;
- return result;
- }
- byte &= 3; // bit [3,2] is count-1
- setup_row_direct(2, 4, byte);
-
- /* Setup and check temporary connection from Node 0 to Node 4 through 2*/
+
+static struct setup_smp_result setup_smp6(int needs_reset)
+{
+ struct setup_smp_result result;
+ u8 byte;
+ uint32_t val;
+
+ result.nodes=6;
+ result.needs_reset = needs_reset;
+
+ /* Setup and check temporary connection from Node 0 to Node 4 via 2 */
+ val = get_row(2,2);
+ byte = ((val>>16) & 0xfe) - link_connection(2,3) - link_connection(2,0);
+ byte = get_linkn_last_count(byte);
+
+ if((byte>>2)==0) { /* We should have two coherent link on node 2 for 6p and above*/
+ result.nodes = 4;
+ return result;
+ }
+ byte &= 3; /* bit [3,2] is count-2*/
+ print_linkn("(2,4) byte=", byte);
+ setup_row_direct(2, 4, byte);
+
+ /* Setup and check temporary connection from Node 0 to Node 4 through 2*/
for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
+ setup_temp_row(byte,byte+2);
}
-
- if (!check_connection(7) ) {
- print_spew("No connection to Node 4.\r\n");
- result.nodes = 4;
- return result;
- }
-
- /* Setup and check temporary connection from Node 0 to Node 5 through 1, 3*/
- val = get_row(3,3);
- byte = ((val>>16) & 0xfe) - link_connection(3,2) - link_connection(3,1);
- byte = get_linkn_last_count(byte);
- //find out linkn
- if((byte>>2)==0) { // We should have two coherent for 4p and above
- result.nodes = 4;
- return result;
- }
+ if (!check_connection(7) ) {
+ print_spew("No connection to Node 4.\r\n");
+ result.nodes = 4;
+ return result;
+ }
- byte &= 3; // bit [3,2] is count-1
- setup_row_direct(3, 5, byte);
+ /* Setup and check temporary connection from Node 0 to Node 5 through 1, 3*/
+ val = get_row(3,3);
+ byte = ((val>>16) & 0xfe) - link_connection(3,2) - link_connection(3,1);
+ byte = get_linkn_last_count(byte);
+ if((byte>>2)==0) { /* We should have two coherent links on node 3 for 6p and above*/
+ result.nodes = 4;
+ return result;
+ }
+
+ byte &= 3; /*bit [3,2] is count-2*/
+ print_linkn("(3,5) byte=", byte);
+ setup_row_direct(3, 5, byte);
- setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
+ setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte+1,byte+3); /* temp. link between nodes 1 and 3 */
+ setup_temp_row(byte+1,byte+3);
}
-
- if (!check_connection(7)) {
- print_spew("No connection to Node 5.\r\n");
- result.nodes = 4;
- return result;
- }
-
- /* We found 6 nodes so far. Now setup all nodes for 6p */
- static const u8 conn6_1[] = {
+
+ if (!check_connection(7)) {
+ print_spew("No connection to Node 5.\r\n");
+ result.nodes = 4;
+ return result;
+ }
+
+ /* We found 6 nodes so far. Now setup all nodes for 6p */
+#warning "FIXME we need to find out the correct gateway for 6p"
+ static const u8 conn6_1[] = {
#if !CROSS_BAR_47_56
- 0, 4, 2,
- 0, 5, 1,
- 1, 4, 3,
- 1, 5, 3,
- 2, 5, 3,
- 3, 4, 5,
+ 0, 4, 2,
+ 0, 5, 1,
+ 1, 4, 3,
+ 1, 5, 3,
+ 2, 5, 3,
+ 3, 4, 5,
#else
- 0, 4, 2, 0,
- 0, 5, 1, 1,
- 1, 4, 3, 1,
- 1, 5, 3, 0,
- 2, 5, 3, 0,
- 3, 4, 2, 0,
+ 0, 4, 2, 0,
+ 0, 5, 1, 1,
+ 1, 4, 3, 1,
+ 1, 5, 3, 0,
+ 2, 5, 3, 0,
+ 3, 4, 2, 0,
#endif
- };
-
- setup_row_indirect_group(conn6_1, sizeof(conn6_1)/sizeof(conn6_1[0]));
+ };
+ setup_row_indirect_group(conn6_1, sizeof(conn6_1)/sizeof(conn6_1[0]));
for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte,byte+2);
+ setup_temp_row(byte,byte+2);
}
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
-
- setup_row_local(7,4);
- setup_remote_row_direct(4, 2, byte);
- setup_remote_node(4); /* Setup the regs on the remote node */
- rename_temp_node(4);
- enable_routing(4);
-
- setup_temp_row(0,1);
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /*get default link on 7 to 2*/
+ print_linkn("(4,2) byte=", byte);
+
+ setup_row_local(7,4);
+ setup_remote_row_direct(4, 2, byte);
+ setup_remote_node(4); /* Setup the regs on the remote node */
+ /* Set indirect connection to 0, to 3 */
+ static const u8 conn6_2[] = {
+#if !CROSS_BAR_47_56
+ 4, 0, 2,
+ 4, 1, 2,
+ 4, 3, 2,
+#else
+ 4, 0, 2, 0,
+ 4, 1, 2, 0,
+ 4, 3, 2, 0,
+ 4, 5, 2, 0,
+#endif
+ };
+
+ setup_remote_row_indirect_group(conn6_2, sizeof(conn6_2)/sizeof(conn6_2[0]));
+
+ rename_temp_node(4);
+ enable_routing(4);
+
+ setup_temp_row(0,1);
for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte+1,byte+3);
+ setup_temp_row(byte+1,byte+3);
}
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
- setup_row_local(7,5);
- setup_remote_row_direct(5, 3, byte);
- setup_remote_node(5); /* Setup the regs on the remote node */
-
- rename_temp_node(5);
- enable_routing(5); /* enable routing on node 5 (temp.) */
-
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 3*/
+ print_linkn("(5,3) byte=", byte);
+ setup_row_local(7,5);
+ setup_remote_row_direct(5, 3, byte);
+ setup_remote_node(5); /* Setup the regs on the remote node */
+
#if !CROSS_BAR_47_56
- /* We need to init link between 4, and 5 direct link */
- val = get_row(4,4);
- byte = ((val>>16) & 0xfe) - link_connection(4,2);
- byte = get_linkn_last_count(byte);
-#if CONFIG_MAX_CPUS>4
- // We need to find out which link it so CPU5
- // methods is try to access another 7 actully it is cpu6
- if((byte>>2)==2) { // one to CPU5, one to cpu2, one to CPU6
- setup_temp_row(0,2);
- setup_temp_row(2,4);
- setup_row_direct(4, 6, byte);
- setup_temp_row(4, 6);
-
- if (check_connection(7)) { // so the link is to CPU4
- //We need to re compute it
- val = get_row(4,4);
- byte = (val>>16) & 0xfe;
- byte = get_linkn_first(byte);
- }
- }
-#endif
- setup_row_direct(4,5, byte & 0x3);
-
- val = get_row(5,5);
- byte = ((val>>16) & 0xfe) - link_connection(5,3);
- byte = get_linkn_last_count(byte);
-#if CONFIG_MAX_CPUS>4
- // We need to find out which link it so CPU4
- // methods is try to access another 7 actully it is cpu7
- if((byte>>2)==2) { // one to CPU4, one to cpu3, one to CPU7
- setup_temp_row(0,1);
- setup_temp_row(1,3);
- setup_temp_row(3,7);
- setup_row_direct(5, 7, byte);
- setup_temp_row(5, 7);
-
- if (check_connection(7)) { // so the link is to CPU5
- //We need to re compute it
- val = get_row(5, 5);
- byte = (val>>16) & 0xfe;
- byte = get_linkn_first(byte);
- }
- }
+ /* We need to init link between 4, and 5 direct link */
+ val = get_row(4,4);
+ byte = ((val>>16) & 0xfe) - link_connection(4,2);
+ byte = get_linkn_last_count(byte);
+ print_linkn("(4,5) byte=", byte & 3);
+
+ setup_row_direct(4,5, byte & 0x3);
+ setup_temp_row(0,2);
+ setup_temp_row(2,4);
+ setup_temp_row(4,5);
+ check_connection(7); /* to 5*/
+
+#if CONFIG_MAX_CPUS > 6
+ /* We need to find out which link is to node5 */
+
+ if((byte>>2)==2) { /* one to node5, one to node2, one to node6*/
+ val = get_row(7,5);
+ if((val>>16) == 1) { /* that link is to node6, because via node 3 node 5 has been set*/
+ val = get_row(4,4);
+ byte = ((val>>16) & 0xfe) - link_connection(4,2);
+ byte = get_linkn_first(byte);
+ print_linkn("-->(4,5) byte=", byte);
+ setup_row_direct(4,5,byte);
+ setup_temp_row(4,5);
+ check_connection(7); /* to 5*/
+ }
+ }
#endif
- setup_row_direct(5,4, byte & 0x3);
-#endif // !CROSS_BAR_47_56
- /* Set indirect connection to 0, to 3 for indirect we will use clockwise routing */
- static const u8 conn6_2[] = {
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
+ print_linkn("(5,4) byte=", byte);
+ setup_remote_row_direct(5,4, byte);
+#endif
+
+ /* Set indirect connection to 0, to 3 for indirect we will use clockwise routing */
+ static const u8 conn6_3[] = {
#if !CROSS_BAR_47_56
- 4, 0, 2,
- 4, 1, 2,
- 4, 3, 2,
- 5, 0, 4,
- 5, 2, 4,
- 5, 1, 3,
+ 5, 0, 4,
+ 5, 2, 4,
+ 5, 1, 3,
#else
- 4, 0, 2, 0,
- 4, 1, 2, 0,
- 4, 3, 2, 0,
- 4, 5, 2, 0,
5, 0, 3, 0,
5, 2, 3, 0,
- 5, 1, 3, 0,
+ 5, 1, 3, 0,
5, 4, 3, 0,
#endif
- };
-
- setup_row_indirect_group(conn6_2, sizeof(conn6_2)/sizeof(conn6_2[0]));
+ };
+
+ setup_remote_row_indirect_group(conn6_3, sizeof(conn6_3)/sizeof(conn6_3[0]));
+
+/* ready to enable RT for 5 */
+ rename_temp_node(5);
+ enable_routing(5); /* enable routing on node 5 (temp.) */
+
#if 0
- // We need to do sth about reverse about setup_temp_row (0,1), (2,4), (1, 3), (3,5)
- // It will be done by clear_dead_links
+ /* We need to do sth about reverse about setup_temp_row (0,1), (2,4), (1, 3), (3,5)
+ * It will be done by clear_dead_links
+ */
for(byte=0; byte<4; byte++) {
clear_temp_row(byte);
}
#endif
-
+
/* optimize physical connections - by LYH */
static const uint8_t opt_conn6[] ={
- 2, 4,
- 3, 5,
+ 2, 4,
+ 3, 5,
#if !CROSS_BAR_47_56
4, 5,
#endif
};
result.needs_reset = optimize_connection_group(opt_conn6, sizeof(opt_conn6)/sizeof(opt_conn6[0]));
+ return result;
+
+}
#endif /* CONFIG_MAX_CPUS > 4 */
-#if CONFIG_MAX_CPUS >6
- result.nodes=8;
+#if CONFIG_MAX_CPUS > 6
+
+static struct setup_smp_result setup_smp8(int needs_reset)
+{
+ struct setup_smp_result result;
+ u8 byte;
+ uint32_t val;
+
+ result.nodes=8;
+ result.needs_reset = needs_reset;
- /* Setup and check temporary connection from Node 0 to Node 6 via 2 and 4 to 7 */
- val = get_row(4,4);
+ /* Setup and check temporary connection from Node 0 to Node 6 via 2 and 4 to 7 */
+ val = get_row(4,4);
#if !CROSS_BAR_47_56
- byte = ((val>>16) & 0xfe) - link_connection(4,5) - link_connection(4,2);
+ byte = ((val>>16) & 0xfe) - link_connection(4,5) - link_connection(4,2);
#else
byte = ((val>>16) & 0xfe) - link_connection(4,2);
#endif
- byte = get_linkn_last_count(byte); // Max link to 6
- if((byte>>2)==0) { // We should have two coherent for 8p and above
- result.nodes = 6;
- return result;
- }
- byte &= 3; // bit [3,2] is count-1
- setup_row_direct(4, 6, byte);
-
- /* Setup and check temporary connection from Node 0 to Node 6 through 2, and 4*/
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
- }
-
- if (!check_connection(7) ) {
- print_spew("No connection to Node 6.\r\n");
- result.nodes = 6;
- return result;
- }
-#if !CROSS_BAR_47_56
- /* Setup and check temporary connection from Node 0 to Node 5 through 1, 3, 5*/
- val = get_row(5,5);
- byte = ((val>>16) & 0xfe) - link_connection(5,4) - link_connection(5,3);
- byte = get_linkn_first(byte);
- setup_row_direct(5, 7, byte);
+#if TRY_HIGH_FIRST == 1
+ byte = get_linkn_last_count(byte); /* Max link to 6*/
+ if((byte>>2)==0) { /* We should have two or three coherent links on node 4 for 8p*/
+ result.nodes = 6;
+ return result;
+ }
+ byte &= 3; /* bit [3,2] is count-1 or 2*/
+#else
+ byte = get_linkn_first(byte); /*Min link to 6*/
+#endif
+ print_linkn("(4,6) byte=", byte);
+ setup_row_direct(4, 6, byte);
- setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte+1,byte+3); /* temp. link between nodes 1 and 3 */
- }
+ /* Setup and check temporary connection from Node 0 to Node 6 through 2, and 4*/
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte,byte+2);
+ }
+
+ if (!check_connection(7) ) {
+ print_spew("No connection to Node 6.\r\n");
+ result.nodes = 6;
+ return result;
+ }
+#if !CROSS_BAR_47_56
+ /* Setup and check temporary connection from Node 0 to Node 7 through 1, 3, 5*/
+ val = get_row(5,5);
+ byte = ((val>>16) & 0xfe) - link_connection(5,4) - link_connection(5,3);
+ byte = get_linkn_first(byte);
+ print_linkn("(5,7) byte=", byte);
+ setup_row_direct(5, 7, byte);
+
+ setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte+1,byte+3);
+ }
#else
- val = get_row(4,4);
- byte = ((val>>16) & 0xfe) - link_connection(4,2) ;
- byte = get_linkn_first(byte); // min link to 7
- setup_row_direct(4, 7, byte);
-
- /* Setup and check temporary connection from Node 0 to Node 7 through 2, and 4*/
- for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
- }
+ val = get_row(4,4);
+ byte = ((val>>16) & 0xfe) - link_connection(4,2) - link_connection(4,6);
+ byte = get_linkn_first(byte);
+ print_linkn("(4,7) byte=", byte);
+ setup_row_direct(4, 7, byte);
+
+ /* Setup and check temporary connection from Node 0 to Node 7 through 2, and 4*/
+ for(byte=0; byte<4; byte+=2) {
+ setup_temp_row(byte,byte+2);
+ }
setup_temp_row(4, 7);
#endif
- if (!check_connection(7)) {
- print_spew("No connection to Node 7.\r\n");
- result.nodes = 6;
- return result;
- }
+ if (!check_connection(7)) {
+ print_spew("No connection to Node 7.\r\n");
+ result.nodes = 6;
+ return result;
+ }
- /* We found 8 nodes so far. Now setup all nodes for 8p */
- static const u8 conn8_1[] = {
+ /* We found 8 nodes so far. Now setup all nodes for 8p */
+ static const u8 conn8_1[] = {
#if !CROSS_BAR_47_56
0, 6, 2,
-// 0, 7, 1,
- 1, 6, 3,
-// 1, 7, 3,
- 2, 6, 4,
-// 2, 7, 3,
- 3, 6, 5,
-// 3, 7, 5,
-// 4, 7, 5,
+ /*0, 7, 1,*/
+ 1, 6, 3,
+ /*1, 7, 3,*/
+ 2, 6, 4,
+ /*2, 7, 3,*/
+ 3, 6, 5,
+ /*3, 7, 5,*/
+ /*4, 7, 5,*/
#else
- 0, 6, 2, 0,
-// 0, 7, 2, 0,
- 1, 6, 3, 0,
-// 1, 7, 3, 0,
- 2, 6, 4, 0,
-// 2, 7, 4, 0,
- 3, 6, 5, 0,
-// 3, 7, 5, 0,
+ 0, 6, 2, 0,
+ /*0, 7, 2, 0,*/
+ 1, 6, 3, 0,
+ /*1, 7, 3, 0,*/
+ 2, 6, 4, 0,
+ /*2, 7, 4, 0,*/
+ 3, 6, 5, 0,
+ /*3, 7, 5, 0,*/
#endif
- };
+ };
- setup_row_indirect_group(conn8_1,sizeof(conn8_1)/sizeof(conn8_1[0]));
+ setup_row_indirect_group(conn8_1,sizeof(conn8_1)/sizeof(conn8_1[0]));
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte,byte+2);
- }
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte,byte+2);
+ }
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
+ print_linkn("(6,4) byte=", byte);
+
+ setup_row_local(7,6);
+ setup_remote_row_direct(6, 4, byte);
+ setup_remote_node(6); /* Setup the regs on the remote node */
+ /* Set indirect connection to 0, to 3 */
+#warning "FIXME we need to find out the correct gateway for 8p"
+ static const u8 conn8_2[] = {
+#if !CROSS_BAR_47_56
+ 6, 0, 4,
+ 6, 1, 4,
+ 6, 2, 4,
+ 6, 3, 4,
+ 6, 5, 4,
+#else
+ 6, 0, 4, 0,
+ /*6, 1, 5, 0,*/
+ 6, 2, 4, 0,
+ /*6, 3, 5, 0,*/
+#endif
+ };
- setup_row_local(7,6);
- setup_remote_row_direct(6, 4, byte);
- setup_remote_node(6); /* Setup the regs on the remote node */
- rename_temp_node(6);
- enable_routing(6);
+ setup_remote_row_indirect_group(conn8_2, sizeof(conn8_2)/sizeof(conn8_2[0]));
+
+ rename_temp_node(6);
+ enable_routing(6);
#if !CROSS_BAR_47_56
- setup_temp_row(0,1);
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte+1,byte+3);
- }
+ setup_temp_row(0,1);
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte+1,byte+3);
+ }
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
- setup_row_local(7,7);
- setup_remote_row_direct(7, 5, byte);
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 5*/
+ print_linkn("(7,5) byte=", byte);
+ setup_row_local(7,7);
+ setup_remote_row_direct(7, 5, byte);
#else
- for(byte=0; byte<4; byte+=2) {
- setup_temp_row(byte,byte+2);
- }
+ for(byte=0; byte<4; byte+=2) {
+ setup_temp_row(byte,byte+2);
+ }
setup_temp_row(4,7);
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
-
- setup_row_local(7,7);
- setup_remote_row_direct(7, 4, byte);
- // till now 4-7, 7-4 done.
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
+ print_linkn("(7,4) byte=", byte);
+ setup_row_local(7,7);
+ setup_remote_row_direct(7, 4, byte);
+ /* till now 4-7, 7-4 done. */
#endif
- setup_remote_node(7); /* Setup the regs on the remote node */
-// rename_temp_node(7);
- enable_routing(7); /* enable routing on node 5 (temp.) */
+ setup_remote_node(7); /* Setup the regs on the remote node */
#if CROSS_BAR_47_56
- //here init 5, 6 and 5, 7
- /* Setup and check temporary connection from Node 0 to Node 5 through 1, 3, 5*/
-
- val = get_row(5,5);
- byte = ((val>>16) & 0xfe) - link_connection(5,3);
- byte = get_linkn_last(byte);
- setup_row_direct(5, 7, byte);
-
- setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte+1,byte+3); /* temp. link between nodes 1 and 3 */
- }
-
- if (!check_connection(7)) {
- // We need to recompute link to 7
- val = get_row(5,5);
- byte = ((val>>16) & 0xfe) - link_connection(5,3);
- byte = get_linkn_first(byte);
-
- byte &= 3; // bit [3,2] is count-1
- setup_row_direct(5, 7, byte);
+ /* here init 5, 7 */
+ /* Setup and check temporary connection from Node 0 to Node 5 through 1, 3, 5*/
+ val = get_row(5,5);
+ byte = ((val>>16) & 0xfe) - link_connection(5,3);
+ byte = get_linkn_last(byte);
+ print_linkn("(5,7) byte=", byte);
+ setup_row_direct(5, 7, byte);
+
+ setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte+1,byte+3);
+ }
+
+ if (!check_connection(7)) {
+ /* We need to recompute link to 7 */
+ val = get_row(5,5);
+ byte = ((val>>16) & 0xfe) - link_connection(5,3);
+ byte = get_linkn_first(byte);
+
+ print_linkn("-->(5,7) byte=", byte);
+ setup_row_direct(5, 7, byte);
#if 0
- setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte+1,byte+3); /* temp. link between nodes 1 and 3 */
- }
+ setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte+1,byte+3);
+ }
#else
setup_temp_row(5,7);
#endif
check_connection(7);
}
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
-// setup_row_local(7,7);
- setup_remote_row_direct(7, 5, byte);
- //Till now 57, 75 done
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 5*/
+ print_linkn("(7,5) byte=", byte);
+ setup_remote_row_direct(7, 5, byte);
+ /*Till now 57, 75 done */
- //init 5,6
- val = get_row(5,5);
- byte = ((val>>16) & 0xfe) - link_connection(5,3) - link_connection(5,7);
- byte = get_linkn_first(byte);
- setup_row_direct(5, 6, byte);
-
-
- val = get_row(6,6);
- byte = ((val>>16) & 0xfe) - link_connection(6,4);
- byte = get_linkn_last(byte);
- setup_row_direct(6, 7, byte);
-
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
- }
+ /* init init 5, 6 */
+ val = get_row(5,5);
+ byte = ((val>>16) & 0xfe) - link_connection(5,3) - link_connection(5,7);
+ byte = get_linkn_first(byte);
+ print_linkn("(5,6) byte=", byte);
+ setup_row_direct(5, 6, byte);
+
+ /* init 6,7 */
+ val = get_row(6,6);
+ byte = ((val>>16) & 0xfe) - link_connection(6,4);
+ byte = get_linkn_last(byte);
+ print_linkn("(6,7) byte=", byte);
+ setup_row_direct(6, 7, byte);
+
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte,byte+2);
+ }
setup_temp_row(6,7);
- if (!check_connection(7)) {
- // We need to recompute link to 7
- val = get_row(6,6);
- byte = ((val>>16) & 0xfe) - link_connection(6,4);
- byte = get_linkn_first(byte);
+ if (!check_connection(7)) {
+ /* We need to recompute link to 7 */
+ val = get_row(6,6);
+ byte = ((val>>16) & 0xfe) - link_connection(6,4);
+ byte = get_linkn_first(byte);
+ print_linkn("-->(6,7) byte=", byte);
- setup_row_direct(6, 7, byte);
+ setup_row_direct(6, 7, byte);
#if 0
- for(byte=0; byte<6; byte+=2) {
- setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
- }
+ for(byte=0; byte<6; byte+=2) {
+ setup_temp_row(byte,byte+2); /* temp. link between nodes 0 and 2 */
+ }
#endif
- setup_temp_row(6,7);
- check_connection(7);
- }
- val = pci_read_config32(NODE_HT(7), 0x6c);
- byte = (val>>2) & 0x3; // get default link on 7 to 0
-// setup_row_local(7,7);
- setup_remote_row_direct(7, 6, byte);
- //Till now 67, 76 done
-
- //init 6,5
- val = get_row(6,6);
- byte = ((val>>16) & 0xfe) - link_connection(6,4) - link_connection(6,7);
- byte = get_linkn_first(byte);
- setup_row_direct(6, 5, byte);
+ setup_temp_row(6,7);
+ check_connection(7);
+ }
+ val = pci_read_config32(NODE_HT(7), 0x6c);
+ byte = (val>>2) & 0x3; /* get default link on 7 to 6*/
+ print_linkn("(7,6) byte=", byte);
+
+ setup_remote_row_direct(7, 6, byte);
+ /* Till now 67, 76 done*/
+
+ /* init 6,5 */
+ val = get_row(6,6);
+ byte = ((val>>16) & 0xfe) - link_connection(6,4) - link_connection(6,7);
+ byte = get_linkn_first(byte);
+ print_linkn("(6,5) byte=", byte);
+ setup_row_direct(6, 5, byte);
#endif
#if !CROSS_BAR_47_56
- /* We need to init link between 6, and 7 direct link */
- val = get_row(6,6);
- byte = ((val>>16) & 0xfe) - link_connection(6,4);
- byte = get_linkn_first(byte);
- setup_row_direct(6,7, byte & 0x3);
-
- val = get_row(7,7);
- byte = ((val>>16) & 0xfe) - link_connection(7,5);
- byte = get_linkn_first(byte);
- setup_row_direct(7,6, byte & 0x3);
+ /* We need to init link between 6, and 7 direct link */
+ val = get_row(6,6);
+ byte = ((val>>16) & 0xfe) - link_connection(6,4);
+ byte = get_linkn_first(byte);
+ print_linkn("(6,7) byte=", byte);
+ setup_row_direct(6,7, byte);
+
+ val = get_row(7,7);
+ byte = ((val>>16) & 0xfe) - link_connection(7,5);
+ byte = get_linkn_first(byte);
+ print_linkn("(7,6) byte=", byte);
+ setup_row_direct(7,6, byte);
#endif
- /* Set indirect connection to 0, to 3 for indirect we will use clockwise routing */
- static const u8 conn8_2[] = {
+ /* Set indirect connection to 0, to 3 for indirect we will use clockwise routing */
+ static const u8 conn8_3[] = {
#if !CROSS_BAR_47_56
- 0, 7, 1, // restore it
- 1, 7, 3,
- 2, 7, 3,
- 3, 7, 5,
- 4, 7, 5,
-
- 6, 0, 4,
- 6, 1, 4,
- 6, 2, 4,
- 6, 3, 4,
- 6, 5, 4,
- 7, 0, 6,
- 7, 1, 5,
- 7, 2, 6,
- 7, 3, 5,
- 7, 4, 6,
+ 0, 7, 1, /* restore it*/
+ 1, 7, 3,
+ 2, 7, 3,
+ 3, 7, 5,
+ 4, 7, 5,
+
+ 7, 0, 6,
+ 7, 1, 5,
+ 7, 2, 6,
+ 7, 3, 5,
+ 7, 4, 6,
#else
- 0, 7, 2, 0, // restore it
- 1, 7, 3, 0,
- 2, 7, 4, 0,
- 3, 7, 5, 0,
-
- 6, 0, 4, 0,
- 6, 1, 5, 0,
- 6, 2, 4, 0,
- 6, 3, 5, 0,
- 7, 0, 4, 0,
- 7, 1, 5, 0,
- 7, 2, 4, 0,
- 7, 3, 5, 0,
- 4, 5, 7, 0,
- 5, 4, 6, 0,
+ 0, 7, 2, 0, /* restore it*/
+ 1, 7, 3, 0,
+ 2, 7, 4, 0,
+ 3, 7, 5, 0,
+
+ 6, 1, 5, 0, /*???*/
+ 6, 3, 5, 0, /*???*/
+
+ 7, 0, 4, 0,
+ 7, 1, 5, 0,
+ 7, 2, 4, 0,
+ 7, 3, 5, 0,
+ 4, 5, 7, 0,
+ 5, 4, 6, 0,
#endif
- };
+ };
- setup_row_indirect_group(conn8_2, sizeof(conn8_2)/sizeof(conn8_2[0]));
+ setup_row_indirect_group(conn8_3, sizeof(conn8_3)/sizeof(conn8_3[0]));
+
+/* ready to enable RT for Node 7 */
+ enable_routing(7); /* enable routing on node 7 (temp.) */
+
static const uint8_t opt_conn8[] ={
- 4, 6,
+ 4, 6,
#if CROSS_BAR_47_56
- 4, 7,
- 5, 6,
+ 4, 7,
+ 5, 6,
#endif
- 5, 7,
- 6, 7,
+ 5, 7,
+ 6, 7,
};
- /* optimize physical connections - by LYH */
- result.needs_reset = optimize_connection_group(opt_conn8, sizeof(opt_conn6)/sizeof(opt_conn8[0]));
+ /* optimize physical connections - by LYH */
+ result.needs_reset = optimize_connection_group(opt_conn8, sizeof(opt_conn8)/sizeof(opt_conn8[0]));
+
+ return result;
+}
#endif /* CONFIG_MAX_CPUS > 6 */
+
+#if CONFIG_MAX_CPUS > 1
+
+static struct setup_smp_result setup_smp(void)
+{
+ struct setup_smp_result result;
+
+ print_spew("Enabling SMP settings\r\n");
+
+ result = setup_smp2();
+#if CONFIG_MAX_CPUS > 2
+ result = setup_smp4(result.needs_reset);
+#endif
+
+#if CONFIG_MAX_CPUS > 4
+ result = setup_smp6(result.needs_reset);
+#endif
+
+#if CONFIG_MAX_CPUS > 6
+ result = setup_smp6(result.needs_reset);
+#endif
+
print_debug_hex8(result.nodes);
print_debug(" nodes initialized.\r\n");
+
return result;
+
}
-#endif
static unsigned verify_mp_capabilities(unsigned nodes)
{
- unsigned node, row, mask;
- bool mp_cap=TRUE;
-
- if (nodes > 2) {
- mask=0x06; /* BigMPCap */
- } else if (nodes == 2) {
- mask=0x02; /* MPCap */
- } else {
- mask=0x00; /* Non SMP */
- }
+ unsigned node, mask;
+
+ mask = 0x06; /* BigMPCap */
for (node=0; node<nodes; node++) {
- if ((pci_read_config32(NODE_MC(node), 0xe8) & mask) != mask) {
- mp_cap = FALSE;
- }
+ mask &= pci_read_config32(NODE_MC(node), 0xe8);
}
-
- if (mp_cap) {
- return nodes;
+
+ switch(mask) {
+#if CONFIG_MAX_CPUS > 2
+ case 0x02: /* MPCap */
+ if(nodes > 2) {
+ print_err("Going back to DP\r\n");
+ return 2;
+ }
+ break;
+#endif
+ case 0x00: /* Non SMP */
+ if(nodes >1 ) {
+ print_err("Going back to UP\r\n");
+ return 1;
+ }
+ break;
}
+
+ return nodes;
- /* one of our nodes is not mp capable */
-
- print_err("One of the CPUs is not MP capable. Going back to UP\r\n");
- return 1;
}
{
int last_row;
int node, row;
-#if CONFIG_MAX_CPUS>6
- if(nodes==8) return;// don't touch (7,7)
+#if CONFIG_MAX_CPUS > 6
+ if(nodes==8) return;/* don't touch (7,7)*/
#endif
last_row = nodes;
if (nodes == 1) {
fill_row(node, row, DEFAULT);
}
}
+
+ /* Update the local row */
+ for( node=0; node<nodes; node++) {
+ uint32_t val = 0;
+ for(row =0; row<nodes; row++) {
+ val |= get_row(node, row);
+ }
+ fill_row(node, row, (((val & 0xff) | ((val >> 8) & 0xff)) << 16) | 0x0101);
+ }
}
+#endif /* CONFIG_MAX_CPUS > 1 */
static void coherent_ht_finalize(unsigned nodes)
{
unsigned node;
- bool rev_a0;
+ int rev_a0;
/* set up cpu count and node count and enable Limit
- * Config Space Range for all available CPUs.
- * Also clear non coherent hypertransport bus range
- * registers on Hammer A0 revision.
- */
+ * Config Space Range for all available CPUs.
+ * Also clear non coherent hypertransport bus range
+ * registers on Hammer A0 revision.
+ */
print_spew("coherent_ht_finalize\r\n");
rev_a0 = is_cpu_rev_a0();
pci_write_config32(dev, 0x60, val);
/* Only respond to real cpu pci configuration cycles
- * and optimize the HT settings
- */
+ * and optimize the HT settings
+ */
val=pci_read_config32(dev, 0x68);
val &= ~((HTTC_BUF_REL_PRI_MASK << HTTC_BUF_REL_PRI_SHIFT) |
(HTTC_MED_PRI_BYP_CNT_MASK << HTTC_MED_PRI_BYP_CNT_SHIFT) |
if (is_cpu_pre_c0()) {
/* Errata 66
- * Limit the number of downstream posted requests to 1
- */
+ * Limit the number of downstream posted requests to 1
+ */
cmd = pci_read_config32(dev, 0x70);
if ((cmd & (3 << 0)) != 2) {
cmd &= ~(3<<0);
else {
uint32_t cmd_ref;
/* Errata 98
- * Set Clk Ramp Hystersis to 7
- * Clock Power/Timing Low
- */
+ * Set Clk Ramp Hystersis to 7
+ * Clock Power/Timing Low
+ */
cmd_ref = 0x04e20707; /* Registered */
cmd = pci_read_config32(dev, 0xd4);
if(cmd != cmd_ref) {
static int optimize_link_read_pointers(unsigned nodes, int needs_reset)
{
unsigned node;
- for(node = 0; node < nodes; node = node + 1) {
+ for(node = 0; node < nodes; node++) {
device_t f0_dev, f3_dev;
uint32_t cmd_ref, cmd;
int link;
f0_dev = NODE_HT(node);
f3_dev = NODE_MC(node);
cmd_ref = cmd = pci_read_config32(f3_dev, 0xdc);
- for(link = 0; link < 3; link = link + 1) {
+ for(link = 0; link < 3; link++) {
uint32_t link_type;
unsigned reg;
/* This works on an Athlon64 because unimplemented links return 0 */
reg = 0x98 + (link * 0x20);
link_type = pci_read_config32(f0_dev, reg);
- if (link_type & LinkConnected) {
- cmd &= 0xff << (link *8);
- /* FIXME this assumes the device on the other
- * side is an AMD device
- */
+ if ((link_type & 3) == 3) {
+ cmd &= ~(0xff << (link *8));
cmd |= 0x25 << (link *8);
}
}
static int setup_coherent_ht_domain(void)
{
struct setup_smp_result result;
- result.nodes = 1;
- result.needs_reset = 0;
enable_bsp_routing();
#if CONFIG_MAX_CPUS > 1
result = setup_smp();
-#endif
result.nodes = verify_mp_capabilities(result.nodes);
clear_dead_routes(result.nodes);
+#else
+ result.nodes = 1;
+ result.needs_reset = 0;
+#endif
+
if (result.nodes == 1) {
setup_uniprocessor();
}
projects / coreboot.git / commitdiff