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authorYinghai Lu <yinghailu@gmail.com>2005-01-06 02:23:31 +0000
committerYinghai Lu <yinghailu@gmail.com>2005-01-06 02:23:31 +0000
commit1bc5654957dee91bbc20bcbd9484fce09db77a4a (patch)
treea04686d36da366621b05e29f404714da36f2d6c0 /src
parentc6068ec9ef158afb42d9d91fa1509fee5f844be4 (diff)
downloadcoreboot-1bc5654957dee91bbc20bcbd9484fce09db77a4a.tar.xz
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
Diffstat (limited to 'src')
-rw-r--r--src/northbridge/amd/amdk8/coherent_ht.c72
-rw-r--r--src/northbridge/amd/amdk8/incoherent_ht.c119
2 files changed, 126 insertions, 65 deletions
diff --git a/src/northbridge/amd/amdk8/coherent_ht.c b/src/northbridge/amd/amdk8/coherent_ht.c
index 905d980f95..e056f53da7 100644
--- a/src/northbridge/amd/amdk8/coherent_ht.c
+++ b/src/northbridge/amd/amdk8/coherent_ht.c
@@ -623,7 +623,7 @@ static struct setup_smp_result setup_smp2(void)
#else
byte = get_linkn_first(byte); /*Min Link to node1 --- according to AMD*/
#endif
- print_linkn("(0,1) byte=", byte);
+ print_linkn("(0,1) link=", byte);
setup_row_direct(0,1, byte);
setup_temp_row(0, 1);
@@ -636,7 +636,7 @@ static struct setup_smp_result setup_smp2(void)
/* 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);
+ print_linkn("(1,0) link=", byte);
setup_row_local(7,1);
setup_remote_row_direct(1, 0, byte);
@@ -652,7 +652,7 @@ static struct setup_smp_result setup_smp2(void)
#else
byte = get_linkn_last(byte); /* Max link to Node1*/
#endif
- print_linkn("-->(0,1) byte=", byte);
+ print_linkn("-->(0,1) link=", byte);
setup_row_direct(0,1, byte);
setup_temp_row(0, 1);
@@ -665,7 +665,7 @@ static struct setup_smp_result setup_smp2(void)
/* 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);
+ print_linkn("-->(1,0) link=", byte);
setup_row_local(7,1);
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*/
- print_linkn("(0,2) byte=", byte);
+ print_linkn("(0,2) link=", byte);
setup_row_direct(0, 2, byte); /*(0,2) direct link done*/
setup_temp_row(0, 2);
@@ -728,7 +728,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = get_row(1,1);
byte = ((val>>16) & 0xfe) - link_connection(1,0);
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_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);
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_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);
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_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);
byte = ((val>>16) & 0xfe) - link_connection(2,0);
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_temp_row(0,2);
@@ -818,7 +818,7 @@ static struct setup_smp_result setup_smp4(int needs_reset)
val = get_row(2,2);
byte = ((val>>16) & 0xfe) - link_connection(2,0);
byte = get_linkn_first(byte);
- print_linkn("-->(2,3) byte=", byte);
+ print_linkn("-->(2,3) link=", byte);
setup_row_direct(2,3,byte);
setup_temp_row(2,3);
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);
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);
/* ready to enable RT for Node 3 */
@@ -878,7 +878,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
return result;
}
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 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*/
- print_linkn("(3,5) byte=", byte);
+ print_linkn("(3,5) link=", byte);
setup_row_direct(3, 5, byte);
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);
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_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);
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_remote_row_direct(5, 3, byte);
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);
byte = ((val>>16) & 0xfe) - link_connection(4,2);
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_temp_row(0,2);
@@ -1001,7 +1001,7 @@ static struct setup_smp_result setup_smp6(int needs_reset)
val = get_row(4,4);
byte = ((val>>16) & 0xfe) - link_connection(4,2);
byte = get_linkn_first(byte);
- print_linkn("-->(4,5) byte=", byte);
+ print_linkn("-->(4,5) link=", byte);
setup_row_direct(4,5,byte);
setup_temp_row(4,5);
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);
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);
#endif
@@ -1089,7 +1089,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
#else
byte = get_linkn_first(byte); /*Min link to 6*/
#endif
- print_linkn("(4,6) byte=", byte);
+ print_linkn("(4,6) link=", byte);
setup_row_direct(4, 6, byte);
/* 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);
byte = ((val>>16) & 0xfe) - link_connection(5,4) - link_connection(5,3);
byte = get_linkn_first(byte);
- print_linkn("(5,7) byte=", byte);
+ print_linkn("(5,7) link=", byte);
setup_row_direct(5, 7, byte);
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);
byte = ((val>>16) & 0xfe) - link_connection(4,2) - link_connection(4,6);
byte = get_linkn_first(byte);
- print_linkn("(4,7) byte=", byte);
+ print_linkn("(4,7) link=", byte);
setup_row_direct(4, 7, byte);
/* 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);
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_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);
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_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);
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);
+ print_linkn("(7,4) link=", byte);
setup_row_local(7,7);
setup_remote_row_direct(7, 4, byte);
/* 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);
byte = ((val>>16) & 0xfe) - link_connection(5,3);
byte = get_linkn_last(byte);
- print_linkn("(5,7) byte=", byte);
+ print_linkn("(5,7) link=", byte);
setup_row_direct(5, 7, byte);
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 = get_linkn_first(byte);
- print_linkn("-->(5,7) byte=", byte);
+ print_linkn("-->(5,7) link=", byte);
setup_row_direct(5, 7, byte);
#if 0
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);
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);
/*Till now 57, 75 done */
@@ -1262,14 +1262,14 @@ static struct setup_smp_result setup_smp8(int needs_reset)
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);
+ print_linkn("(5,6) link=", 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);
+ print_linkn("(6,7) link=", byte);
setup_row_direct(6, 7, byte);
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);
byte = ((val>>16) & 0xfe) - link_connection(6,4);
byte = get_linkn_first(byte);
- print_linkn("-->(6,7) byte=", byte);
+ print_linkn("-->(6,7) link=", byte);
setup_row_direct(6, 7, byte);
#if 0
@@ -1295,7 +1295,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
}
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);
+ print_linkn("(7,6) link=", byte);
setup_remote_row_direct(7, 6, byte);
/* Till now 67, 76 done*/
@@ -1304,7 +1304,7 @@ static struct setup_smp_result setup_smp8(int needs_reset)
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);
+ print_linkn("(6,5) link=", byte);
setup_row_direct(6, 5, byte);
#endif
@@ -1314,13 +1314,13 @@ static struct setup_smp_result setup_smp8(int needs_reset)
val = get_row(6,6);
byte = ((val>>16) & 0xfe) - link_connection(6,4);
byte = get_linkn_first(byte);
- print_linkn("(6,7) byte=", byte);
+ print_linkn("(6,7) link=", 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);
+ print_linkn("(7,6) link=", byte);
setup_row_direct(7,6, byte);
#endif
@@ -1463,7 +1463,7 @@ static void clear_dead_routes(unsigned nodes)
for(row =0; row<nodes; 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 */
@@ -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 */
reg = 0x98 + (link * 0x20);
link_type = pci_read_config32(f0_dev, reg);
- if ((link_type & 3) == 3) {
+ if ((link_type & 7) == 3) {
cmd &= ~(0xff << (link *8));
cmd |= 0x25 << (link *8);
}
diff --git a/src/northbridge/amd/amdk8/incoherent_ht.c b/src/northbridge/amd/amdk8/incoherent_ht.c
index 3255a03873..d947ea3d4d 100644
--- a/src/northbridge/amd/amdk8/incoherent_ht.c
+++ b/src/northbridge/amd/amdk8/incoherent_ht.c
@@ -1,12 +1,16 @@
-/*
- This should be done by Eric
- 2004.12 yhlu add multi ht chain dynamically support
-*/
-
+/*
+ This should be done by Eric
+ 2004.12 yhlu add multi ht chain dynamically support
+*/
#include <device/pci_def.h>
#include <device/pci_ids.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)
{
unsigned pos;
@@ -44,7 +48,7 @@ static void ht_collapse_previous_enumeration(unsigned bus)
{
device_t dev;
uint32_t id;
-
+
/* Check if is already collapsed */
dev = PCI_DEV(bus, 0, 0);
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;
}
+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)
{
/* 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 |= (reg & 0xffff0000)>>8;
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 */
ht_collapse_previous_enumeration(busn);
upos = ((reg & 0xf00)>>8) * 0x20 + 0x80;
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 |= optimize_link_in_coherent(ht_c_num);
+
return reset_needed;
}
@@ -372,20 +429,22 @@ static int ht_setup_chains_x(void)
unsigned next_busn;
int ht_c_num;
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);
- //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);
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++) {
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++) {
device_t dev;
unsigned linkn;
@@ -394,24 +453,26 @@ static int ht_setup_chains_x(void)
unsigned regpos;
regpos = 0x98 + 0x20 * linkn;
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);
- //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++) {
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;
}
}
- if(ht_c_num == 4) break; //used up onle 4 non conherent allowed
- //update to 0xe0...
- if((reg & 0xf) == 3) continue; //SBLink so don't touch it
+ if(ht_c_num == 4) break; /*used up onle 4 non conherent allowed*/
+ /*update to 0xe0...*/
+ 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);
pci_write_config32(PCI_DEV(0, 0x18, 1), 0xe0 + ht_c_num * 4, tempreg);
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++) {
int i;
@@ -426,7 +487,7 @@ static int ht_setup_chains_x(void)
}
}
- // recount ht_c_num
+ /* recount ht_c_num*/
int i=0;
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);