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clear dead link bug fix and opt_link_read for non coherent link 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1842 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Yinghai Lu 2005-01-06 02:23:31 +00:00
parent c6068ec9ef
commit 1bc5654957
2 changed files with 126 additions and 65 deletions
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72
src/northbridge/amd/amdk8/coherent_ht.c
View File

@ -623,7 +623,7 @@ static struct setup_smp_result setup_smp2(void)
#else #else
byte = get_linkn_first(byte); /*Min Link to node1 --- according to AMD*/ byte = get_linkn_first(byte); /*Min Link to node1 --- according to AMD*/
#endif #endif
print_linkn("(0,1) byte=", byte); print_linkn("(0,1) link=", byte);
setup_row_direct(0,1, byte); setup_row_direct(0,1, byte);
setup_temp_row(0, 1); setup_temp_row(0, 1);
@ -636,7 +636,7 @@ static struct setup_smp_result setup_smp2(void)
/* We found 2 nodes so far */ /* We found 2 nodes so far */
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /*get default link on node7 to node0*/ byte = (val>>2) & 0x3; /*get default link on node7 to node0*/
print_linkn("(1,0) byte=", byte); print_linkn("(1,0) link=", byte);
setup_row_local(7,1); setup_row_local(7,1);
setup_remote_row_direct(1, 0, byte); setup_remote_row_direct(1, 0, byte);
@ -652,7 +652,7 @@ static struct setup_smp_result setup_smp2(void)
#else #else
byte = get_linkn_last(byte); /* Max link to Node1*/ byte = get_linkn_last(byte); /* Max link to Node1*/
#endif #endif
print_linkn("-->(0,1) byte=", byte); print_linkn("-->(0,1) link=", byte);
setup_row_direct(0,1, byte); setup_row_direct(0,1, byte);
setup_temp_row(0, 1); setup_temp_row(0, 1);
@ -665,7 +665,7 @@ static struct setup_smp_result setup_smp2(void)
/* We found 2 nodes so far */ /* We found 2 nodes so far */
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on node7 to node0*/ byte = (val>>2) & 0x3; /* get default link on node7 to node0*/
print_linkn("-->(1,0) byte=", byte); print_linkn("-->(1,0) link=", byte);
setup_row_local(7,1); setup_row_local(7,1);
setup_remote_row_direct(1, 0, byte); setup_remote_row_direct(1, 0, byte);
} }
@ -710,7 +710,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
} }
byte &= 3; /* bit [3,2] is count-1*/ byte &= 3; /* bit [3,2] is count-1*/
print_linkn("(0,2) byte=", byte); print_linkn("(0,2) link=", byte);
setup_row_direct(0, 2, byte); /*(0,2) direct link done*/ setup_row_direct(0, 2, byte); /*(0,2) direct link done*/
setup_temp_row(0, 2); setup_temp_row(0, 2);
@ -728,7 +728,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = get_row(1,1); val = get_row(1,1);
byte = ((val>>16) & 0xfe) - link_connection(1,0); byte = ((val>>16) & 0xfe) - link_connection(1,0);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(1,3) byte=", byte); print_linkn("(1,3) link=", byte);
setup_row_direct(1,3,byte); /* (1, 3) direct link done*/ setup_row_direct(1,3,byte); /* (1, 3) direct link done*/
setup_temp_row(1,3); /* temp. link between nodes 1 and 3 */ setup_temp_row(1,3); /* temp. link between nodes 1 and 3 */
@ -757,7 +757,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); 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 7 to 0*/
print_linkn("(2,0) byte=", byte); print_linkn("(2,0) link=", byte);
setup_row_local(7,2); setup_row_local(7,2);
setup_remote_row_direct(2, 0, byte); setup_remote_row_direct(2, 0, byte);
@ -781,7 +781,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 1*/ byte = (val>>2) & 0x3; /* get default link on 7 to 1*/
print_linkn("(3,1) byte=", byte); print_linkn("(3,1) link=", byte);
setup_row_local(7,3); setup_row_local(7,3);
setup_remote_row_direct(3, 1, byte); setup_remote_row_direct(3, 1, byte);
@ -802,7 +802,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = get_row(2,2); val = get_row(2,2);
byte = ((val>>16) & 0xfe) - link_connection(2,0); byte = ((val>>16) & 0xfe) - link_connection(2,0);
byte = get_linkn_last_count(byte); byte = get_linkn_last_count(byte);
print_linkn("(2,3) byte=", byte & 3); print_linkn("(2,3) link=", byte & 3);
setup_row_direct(2,3, byte & 0x3); setup_row_direct(2,3, byte & 0x3);
setup_temp_row(0,2); setup_temp_row(0,2);
@ -818,7 +818,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = get_row(2,2); val = get_row(2,2);
byte = ((val>>16) & 0xfe) - link_connection(2,0); byte = ((val>>16) & 0xfe) - link_connection(2,0);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("-->(2,3) byte=", byte); print_linkn("-->(2,3) link=", byte);
setup_row_direct(2,3,byte); setup_row_direct(2,3,byte);
setup_temp_row(2,3); setup_temp_row(2,3);
check_connection(7); /* to 3*/ check_connection(7); /* to 3*/
@ -828,7 +828,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 2*/ byte = (val>>2) & 0x3; /* get default link on 7 to 2*/
print_linkn("(3,2) byte=", byte); print_linkn("(3,2) link=", byte);
setup_remote_row_direct(3,2, byte); setup_remote_row_direct(3,2, byte);
/* ready to enable RT for Node 3 */ /* ready to enable RT for Node 3 */
@ -878,7 +878,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
return result; return result;
} }
byte &= 3; /* bit [3,2] is count-2*/ byte &= 3; /* bit [3,2] is count-2*/
print_linkn("(2,4) byte=", byte); print_linkn("(2,4) link=", byte);
setup_row_direct(2, 4, byte); setup_row_direct(2, 4, byte);
/* Setup and check temporary connection from Node 0 to Node 4 through 2*/ /* Setup and check temporary connection from Node 0 to Node 4 through 2*/
@ -902,7 +902,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
} }
byte &= 3; /*bit [3,2] is count-2*/ byte &= 3; /*bit [3,2] is count-2*/
print_linkn("(3,5) byte=", byte); print_linkn("(3,5) link=", byte);
setup_row_direct(3, 5, 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 */
@ -943,7 +943,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
} }
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /*get default link on 7 to 2*/ byte = (val>>2) & 0x3; /*get default link on 7 to 2*/
print_linkn("(4,2) byte=", byte); print_linkn("(4,2) link=", byte);
setup_row_local(7,4); setup_row_local(7,4);
setup_remote_row_direct(4, 2, byte); setup_remote_row_direct(4, 2, byte);
@ -974,7 +974,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 3*/ byte = (val>>2) & 0x3; /* get default link on 7 to 3*/
print_linkn("(5,3) byte=", byte); print_linkn("(5,3) link=", byte);
setup_row_local(7,5); setup_row_local(7,5);
setup_remote_row_direct(5, 3, byte); setup_remote_row_direct(5, 3, byte);
setup_remote_node(5); /* Setup the regs on the remote node */ setup_remote_node(5); /* Setup the regs on the remote node */
@ -984,7 +984,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
val = get_row(4,4); val = get_row(4,4);
byte = ((val>>16) & 0xfe) - link_connection(4,2); byte = ((val>>16) & 0xfe) - link_connection(4,2);
byte = get_linkn_last_count(byte); byte = get_linkn_last_count(byte);
print_linkn("(4,5) byte=", byte & 3); print_linkn("(4,5) link=", byte & 3);
setup_row_direct(4,5, byte & 0x3); setup_row_direct(4,5, byte & 0x3);
setup_temp_row(0,2); setup_temp_row(0,2);
@ -1001,7 +1001,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
val = get_row(4,4); val = get_row(4,4);
byte = ((val>>16) & 0xfe) - link_connection(4,2); byte = ((val>>16) & 0xfe) - link_connection(4,2);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("-->(4,5) byte=", byte); print_linkn("-->(4,5) link=", byte);
setup_row_direct(4,5,byte); setup_row_direct(4,5,byte);
setup_temp_row(4,5); setup_temp_row(4,5);
check_connection(7); /* to 5*/ check_connection(7); /* to 5*/
@ -1011,7 +1011,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 4*/ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
print_linkn("(5,4) byte=", byte); print_linkn("(5,4) link=", byte);
setup_remote_row_direct(5,4, byte); setup_remote_row_direct(5,4, byte);
#endif #endif
@ -1089,7 +1089,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
#else #else
byte = get_linkn_first(byte); /*Min link to 6*/ byte = get_linkn_first(byte); /*Min link to 6*/
#endif #endif
print_linkn("(4,6) byte=", byte); print_linkn("(4,6) link=", byte);
setup_row_direct(4, 6, byte); setup_row_direct(4, 6, byte);
/* Setup and check temporary connection from Node 0 to Node 6 through 2, and 4*/ /* Setup and check temporary connection from Node 0 to Node 6 through 2, and 4*/
@ -1107,7 +1107,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(5,5); val = get_row(5,5);
byte = ((val>>16) & 0xfe) - link_connection(5,4) - link_connection(5,3); byte = ((val>>16) & 0xfe) - link_connection(5,4) - link_connection(5,3);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(5,7) byte=", byte); print_linkn("(5,7) link=", byte);
setup_row_direct(5, 7, byte); setup_row_direct(5, 7, 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 */
@ -1118,7 +1118,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(4,4); val = get_row(4,4);
byte = ((val>>16) & 0xfe) - link_connection(4,2) - link_connection(4,6); byte = ((val>>16) & 0xfe) - link_connection(4,2) - link_connection(4,6);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(4,7) byte=", byte); print_linkn("(4,7) link=", byte);
setup_row_direct(4, 7, byte); setup_row_direct(4, 7, byte);
/* Setup and check temporary connection from Node 0 to Node 7 through 2, and 4*/ /* Setup and check temporary connection from Node 0 to Node 7 through 2, and 4*/
@ -1167,7 +1167,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
} }
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 4*/ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
print_linkn("(6,4) byte=", byte); print_linkn("(6,4) link=", byte);
setup_row_local(7,6); setup_row_local(7,6);
setup_remote_row_direct(6, 4, byte); setup_remote_row_direct(6, 4, byte);
@ -1202,7 +1202,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 5*/ byte = (val>>2) & 0x3; /* get default link on 7 to 5*/
print_linkn("(7,5) byte=", byte); print_linkn("(7,5) link=", byte);
setup_row_local(7,7); setup_row_local(7,7);
setup_remote_row_direct(7, 5, byte); setup_remote_row_direct(7, 5, byte);
@ -1213,7 +1213,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
setup_temp_row(4,7); setup_temp_row(4,7);
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 4*/ byte = (val>>2) & 0x3; /* get default link on 7 to 4*/
print_linkn("(7,4) byte=", byte); print_linkn("(7,4) link=", byte);
setup_row_local(7,7); setup_row_local(7,7);
setup_remote_row_direct(7, 4, byte); setup_remote_row_direct(7, 4, byte);
/* till now 4-7, 7-4 done. */ /* till now 4-7, 7-4 done. */
@ -1226,7 +1226,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(5,5); val = get_row(5,5);
byte = ((val>>16) & 0xfe) - link_connection(5,3); byte = ((val>>16) & 0xfe) - link_connection(5,3);
byte = get_linkn_last(byte); byte = get_linkn_last(byte);
print_linkn("(5,7) byte=", byte); print_linkn("(5,7) link=", byte);
setup_row_direct(5, 7, byte); setup_row_direct(5, 7, 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 */
@ -1240,7 +1240,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
byte = ((val>>16) & 0xfe) - link_connection(5,3); byte = ((val>>16) & 0xfe) - link_connection(5,3);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("-->(5,7) byte=", byte); print_linkn("-->(5,7) link=", byte);
setup_row_direct(5, 7, byte); setup_row_direct(5, 7, byte);
#if 0 #if 0
setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */ setup_temp_row(0,1); /* temp. link between nodes 0 and 1 */
@ -1254,7 +1254,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
} }
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 5*/ byte = (val>>2) & 0x3; /* get default link on 7 to 5*/
print_linkn("(7,5) byte=", byte); print_linkn("(7,5) link=", byte);
setup_remote_row_direct(7, 5, byte); setup_remote_row_direct(7, 5, byte);
/*Till now 57, 75 done */ /*Till now 57, 75 done */
@ -1262,14 +1262,14 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(5,5); val = get_row(5,5);
byte = ((val>>16) & 0xfe) - link_connection(5,3) - link_connection(5,7); byte = ((val>>16) & 0xfe) - link_connection(5,3) - link_connection(5,7);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(5,6) byte=", byte); print_linkn("(5,6) link=", byte);
setup_row_direct(5, 6, byte); setup_row_direct(5, 6, byte);
/* init 6,7 */ /* init 6,7 */
val = get_row(6,6); val = get_row(6,6);
byte = ((val>>16) & 0xfe) - link_connection(6,4); byte = ((val>>16) & 0xfe) - link_connection(6,4);
byte = get_linkn_last(byte); byte = get_linkn_last(byte);
print_linkn("(6,7) byte=", byte); print_linkn("(6,7) link=", byte);
setup_row_direct(6, 7, byte); setup_row_direct(6, 7, byte);
for(byte=0; byte<6; byte+=2) { for(byte=0; byte<6; byte+=2) {
@ -1282,7 +1282,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(6,6); val = get_row(6,6);
byte = ((val>>16) & 0xfe) - link_connection(6,4); byte = ((val>>16) & 0xfe) - link_connection(6,4);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("-->(6,7) byte=", byte); print_linkn("-->(6,7) link=", byte);
setup_row_direct(6, 7, byte); setup_row_direct(6, 7, byte);
#if 0 #if 0
@ -1295,7 +1295,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
} }
val = pci_read_config32(NODE_HT(7), 0x6c); val = pci_read_config32(NODE_HT(7), 0x6c);
byte = (val>>2) & 0x3; /* get default link on 7 to 6*/ byte = (val>>2) & 0x3; /* get default link on 7 to 6*/
print_linkn("(7,6) byte=", byte); print_linkn("(7,6) link=", byte);
setup_remote_row_direct(7, 6, byte); setup_remote_row_direct(7, 6, byte);
/* Till now 67, 76 done*/ /* Till now 67, 76 done*/
@ -1304,7 +1304,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(6,6); val = get_row(6,6);
byte = ((val>>16) & 0xfe) - link_connection(6,4) - link_connection(6,7); byte = ((val>>16) & 0xfe) - link_connection(6,4) - link_connection(6,7);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(6,5) byte=", byte); print_linkn("(6,5) link=", byte);
setup_row_direct(6, 5, byte); setup_row_direct(6, 5, byte);
#endif #endif
@ -1314,13 +1314,13 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(6,6); val = get_row(6,6);
byte = ((val>>16) & 0xfe) - link_connection(6,4); byte = ((val>>16) & 0xfe) - link_connection(6,4);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(6,7) byte=", byte); print_linkn("(6,7) link=", byte);
setup_row_direct(6,7, byte); setup_row_direct(6,7, byte);
val = get_row(7,7); val = get_row(7,7);
byte = ((val>>16) & 0xfe) - link_connection(7,5); byte = ((val>>16) & 0xfe) - link_connection(7,5);
byte = get_linkn_first(byte); byte = get_linkn_first(byte);
print_linkn("(7,6) byte=", byte); print_linkn("(7,6) link=", byte);
setup_row_direct(7,6, byte); setup_row_direct(7,6, byte);
#endif #endif
@ -1463,7 +1463,7 @@ static void clear_dead_routes(unsigned nodes)
for(row =0; row<nodes; row++) { for(row =0; row<nodes; row++) {
val |= get_row(node, row); val |= get_row(node, row);
} }
fill_row(node, row, (((val & 0xff) | ((val >> 8) & 0xff)) << 16) | 0x0101); fill_row(node, node, (((val & 0xff) | ((val >> 8) & 0xff)) << 16) | 0x0101);
} }
} }
#endif /* CONFIG_MAX_CPUS > 1 */ #endif /* CONFIG_MAX_CPUS > 1 */
@ -1585,7 +1585,7 @@ static int optimize_link_read_pointers(unsigned nodes, int needs_reset)
/* This works on an Athlon64 because unimplemented links return 0 */ /* This works on an Athlon64 because unimplemented links return 0 */
reg = 0x98 + (link * 0x20); reg = 0x98 + (link * 0x20);
link_type = pci_read_config32(f0_dev, reg); link_type = pci_read_config32(f0_dev, reg);
if ((link_type & 3) == 3) { if ((link_type & 7) == 3) {
cmd &= ~(0xff << (link *8)); cmd &= ~(0xff << (link *8));
cmd |= 0x25 << (link *8); cmd |= 0x25 << (link *8);
} }

119
src/northbridge/amd/amdk8/incoherent_ht.c
View File

@ -1,12 +1,16 @@
/* /*
This should be done by Eric This should be done by Eric
2004.12 yhlu add multi ht chain dynamically support 2004.12 yhlu add multi ht chain dynamically support
*/ */
#include <device/pci_def.h> #include <device/pci_def.h>
#include <device/pci_ids.h> #include <device/pci_ids.h>
#include <device/hypertransport_def.h> #include <device/hypertransport_def.h>
static inline void print_linkn_in (const char *strval, uint8_t byteval)
{
print_debug(strval); print_debug_hex8(byteval); print_debug("\r\n");
}
static unsigned ht_lookup_slave_capability(device_t dev) static unsigned ht_lookup_slave_capability(device_t dev)
{ {
unsigned pos; unsigned pos;
@ -44,7 +48,7 @@ static void ht_collapse_previous_enumeration(unsigned bus)
{ {
device_t dev; device_t dev;
uint32_t id; uint32_t id;
/* Check if is already collapsed */ /* Check if is already collapsed */
dev = PCI_DEV(bus, 0, 0); dev = PCI_DEV(bus, 0, 0);
id = pci_read_config32(dev, PCI_VENDOR_ID); id = pci_read_config32(dev, PCI_VENDOR_ID);
@ -310,6 +314,65 @@ static int ht_setup_chainx(device_t udev, unsigned upos, unsigned bus)
return reset_needed; return reset_needed;
} }
static int optimize_link_read_pointer(unsigned node, unsigned linkn, uint8_t linkt, unsigned val)
{
uint32_t dword, dword_old;
uint8_t link_type;
/* This works on an Athlon64 because unimplemented links return 0 */
dword = pci_read_config32(PCI_DEV(0,0x18+node,0), 0x98 + (linkn * 0x20));
link_type = dword & 0xff;
dword_old = dword = pci_read_config32(PCI_DEV(0,0x18+node,3), 0xdc);
if ( (link_type & 7) == linkt ) { /* Coherent Link only linkt = 3, ncoherent = 7*/
dword &= ~( 0xff<<(linkn *8) );
dword |= val << (linkn *8);
}
if (dword != dword_old) {
pci_write_config32(PCI_DEV(0,0x18+node,3), 0xdc, dword);
return 1;
}
return 0;
}
static int optimize_link_in_coherent(int ht_c_num)
{
int reset_needed;
int i;
reset_needed = 0;
for (i = 0; i < ht_c_num; i++) {
uint32_t reg;
unsigned nodeid, linkn;
unsigned busn;
unsigned val;
reg = pci_read_config32(PCI_DEV(0,0x18,1), 0xe0 + i * 4);
nodeid = ((reg & 0xf0)>>4); // nodeid
linkn = ((reg & 0xf00)>>8); // link n
busn = (reg & 0xff0000)>>16; //busn
reg = pci_read_config32( PCI_DEV(busn, 1, 0), PCI_VENDOR_ID);
if ( (reg & 0xffff) == PCI_VENDOR_ID_AMD) {
val = 0x25;
} else if ( (reg & 0xffff) == 0x10de ) {
val = 0x25;//???
} else {
continue;
}
reset_needed |= optimize_link_read_pointer(nodeid, linkn, 0x07, val);
}
return reset_needed;
}
static int ht_setup_chains(int ht_c_num) static int ht_setup_chains(int ht_c_num)
{ {
/* Assumption the HT chain that is bus 0 has the HT I/O Hub on it. /* Assumption the HT chain that is bus 0 has the HT I/O Hub on it.
@ -342,25 +405,19 @@ static int ht_setup_chains(int ht_c_num)
dword &= ~(0xffff<<8); dword &= ~(0xffff<<8);
dword |= (reg & 0xffff0000)>>8; dword |= (reg & 0xffff0000)>>8;
pci_write_config32( PCI_DEV(0, devpos,0), regpos , dword); pci_write_config32( PCI_DEV(0, devpos,0), regpos , dword);
#if 0
dump_pci_devices_on_bus(busn);
#endif
/* Make certain the HT bus is not enumerated */ /* Make certain the HT bus is not enumerated */
ht_collapse_previous_enumeration(busn); ht_collapse_previous_enumeration(busn);
upos = ((reg & 0xf00)>>8) * 0x20 + 0x80; upos = ((reg & 0xf00)>>8) * 0x20 + 0x80;
udev = PCI_DEV(0, devpos, 0); udev = PCI_DEV(0, devpos, 0);
#if 0
dump_pci_devices_on_bus(busn);
#endif
reset_needed |= ht_setup_chainx(udev,upos,busn ); reset_needed |= ht_setup_chainx(udev,upos,busn );
} }
reset_needed |= optimize_link_in_coherent(ht_c_num);
return reset_needed; return reset_needed;
} }
@ -372,20 +429,22 @@ static int ht_setup_chains_x(void)
unsigned next_busn; unsigned next_busn;
int ht_c_num; int ht_c_num;
int nodes; int nodes;
// read PCI_DEV(0,0x18,0) 0x64 bit [8:9] to find out SbLink m /* read PCI_DEV(0,0x18,0) 0x64 bit [8:9] to find out SbLink m */
reg = pci_read_config32(PCI_DEV(0, 0x18, 0), 0x64); reg = pci_read_config32(PCI_DEV(0, 0x18, 0), 0x64);
//update PCI_DEV(0, 0x18, 1) 0xe0 to 0x05000m03, and next_busn=5+1; /* update PCI_DEV(0, 0x18, 1) 0xe0 to 0x05000m03, and next_busn=5+1 */
print_linkn_in("SBLink=", ((reg>>8) & 3) );
tempreg = 3 | ( 0<<4) | (((reg>>8) & 3)<<8) | (0<<16)| (5<<24); tempreg = 3 | ( 0<<4) | (((reg>>8) & 3)<<8) | (0<<16)| (5<<24);
pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0, tempreg); pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0, tempreg);
next_busn=5+1; // 0 will be used ht chain with SB we need to keep SB in bus0 in auto stage
// clean others next_busn=5+1; /* 0 will be used ht chain with SB we need to keep SB in bus0 in auto stage*/
/* clean others */
for(ht_c_num=1;ht_c_num<4; ht_c_num++) { for(ht_c_num=1;ht_c_num<4; ht_c_num++) {
pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, 0); pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, 0);
} }
nodes = ((pci_read_config32(PCI_DEV(0, 0x18, 0), 0x60)>>4) & 7) + 1;
nodes = ((pci_read_config32(PCI_DEV(0, 0x18, 0), 0x60)>>4) & 7) + 1;
for(nodeid=0; nodeid<nodes; nodeid++) { for(nodeid=0; nodeid<nodes; nodeid++) {
device_t dev; device_t dev;
unsigned linkn; unsigned linkn;
@ -394,24 +453,26 @@ static int ht_setup_chains_x(void)
unsigned regpos; unsigned regpos;
regpos = 0x98 + 0x20 * linkn; regpos = 0x98 + 0x20 * linkn;
reg = pci_read_config32(dev, regpos); reg = pci_read_config32(dev, regpos);
if ((reg & 7) != 7) continue; // it is not non conherent or not connected if ((reg & 0x17) != 7) continue; /* it is not non conherent or not connected*/
print_linkn_in("NC node/link=", ((nodeid & 0xf)<<4)|(linkn & 0xf));
tempreg = 3 | (nodeid <<4) | (linkn<<8); tempreg = 3 | (nodeid <<4) | (linkn<<8);
//compare (temp & 0xffff), with (PCI(0, 0x18, 1) 0xe0 to 0xec & 0xfffff) /*compare (temp & 0xffff), with (PCI(0, 0x18, 1) 0xe0 to 0xec & 0xfffff) */
for(ht_c_num=0;ht_c_num<4; ht_c_num++) { for(ht_c_num=0;ht_c_num<4; ht_c_num++) {
reg = pci_read_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4); reg = pci_read_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4);
if(((reg & 0xffff) == (tempreg & 0xffff)) || ((reg & 0xffff) == 0x0000)) { // we got it if(((reg & 0xffff) == (tempreg & 0xffff)) || ((reg & 0xffff) == 0x0000)) { /*we got it*/
break; break;
} }
} }
if(ht_c_num == 4) break; //used up onle 4 non conherent allowed if(ht_c_num == 4) break; /*used up onle 4 non conherent allowed*/
//update to 0xe0... /*update to 0xe0...*/
if((reg & 0xf) == 3) continue; //SBLink so don't touch it if((reg & 0xf) == 3) continue; /*SbLink so don't touch it */
print_linkn_in("\tbusn=", next_busn);
tempreg |= (next_busn<<16)|((next_busn+5)<<24); tempreg |= (next_busn<<16)|((next_busn+5)<<24);
pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, tempreg); pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, tempreg);
next_busn+=5+1; next_busn+=5+1;
} }
} }
//update 0xe0, 0xe4, 0xe8, 0xec from PCI_DEV(0, 0x18,1) to PCI_DEV(0, 0x19,1) to PCI_DEV(0, 0x1f,1); /*update 0xe0, 0xe4, 0xe8, 0xec from PCI_DEV(0, 0x18,1) to PCI_DEV(0, 0x19,1) to PCI_DEV(0, 0x1f,1);*/
for(nodeid = 1; nodeid<nodes; nodeid++) { for(nodeid = 1; nodeid<nodes; nodeid++) {
int i; int i;
@ -426,7 +487,7 @@ static int ht_setup_chains_x(void)
} }
} }
// recount ht_c_num /* recount ht_c_num*/
int i=0; int i=0;
for(ht_c_num=0;ht_c_num<4; ht_c_num++) { for(ht_c_num=0;ht_c_num<4; ht_c_num++) {
reg = pci_read_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4); reg = pci_read_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4);