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make coherent ht setup capable of non-standard link configurations 

(i.e. with CPU1 not connected to ACROSS link of CPU0)


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1122 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Stefan Reinauer 2003-09-23 18:50:35 +00:00
parent dcdbdfb46e
commit 9719cce5a3
1 changed files with 27 additions and 8 deletions
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35
src/northbridge/amd/amdk8/coherent_ht.c
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@ -17,9 +17,32 @@
#include "arch/romcc_io.h"
/*
*
* Until we have a completely dynamic setup we want
* to be able to map different cpu graphs.
*/
#define UP 0x00
#define ACROSS 0x20
#define DOWN 0x40
/*
* set some default values. These are used if they are not
* differently defined in the motherboard's auto.c file.
* See src/mainboard/amd/quartet/auto.c for an example.
*/
#ifndef CONNECTION_0_1
#define CONNECTION_0_1 ACROSS
#endif
#ifndef CONNECTION_0_2
#define CONNECTION_0_2 UP
#endif
#ifndef CONNECTION_1_3
#define CONNECTION_1_3 UP
#endif
/* when generating a temporary row configuration we
* don't want broadcast to be enabled for that node.
*/
@ -187,10 +210,6 @@ static bool check_connection(u8 src, u8 dest, u8 link)
* remote node's vendor/device id
*/
#define UP 0x00
#define ACROSS 0x20
#define DOWN 0x40
u32 val;
/* 1) */
@ -319,7 +338,7 @@ static u8 setup_smp(void)
/* Setup and check a temporary connection to node 1 */
setup_temp_row(0,1,cpus);
if (!check_connection(0, 7, ACROSS)) { // Link: ACROSS
if (!check_connection(0, 7, CONNECTION_0_1)) {
print_debug("No connection to Node 1.\r\n");
clear_temp_row(0); /* delete temp connection */
setup_uniprocessor(); /* and get up working */
@ -340,7 +359,7 @@ static u8 setup_smp(void)
/* Setup and check temporary connection from Node 0 to Node 2 */
setup_temp_row(0,2,cpus);
if (!check_connection(0, 7, UP)) { // Link: UP
if (!check_connection(0, 7, CONNECTION_0_2)) {
print_debug("No connection to Node 2.\r\n");
clear_temp_row(0); /* delete temp connection */
return 2;
@ -353,7 +372,7 @@ static u8 setup_smp(void)
setup_temp_row(0,1,cpus); /* temp. link between nodes 0 and 1 */
setup_temp_row(1,3,cpus); /* temp. link between nodes 1 and 3 */
if (!check_connection(1, 7, UP)) { // Link: UP
if (!check_connection(1, 7, CONNECTION_1_3)) {
print_debug("No connection to Node 3.\r\n");
clear_temp_row(0); /* delete temp connection */
clear_temp_row(1); /* delete temp connection */