From e2b2006406cb6b3013557eddd43bdb35eb6b78b5 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 22 Dec 2004 03:14:50 +0000 Subject: update broastcast table for K8 4p above git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1827 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/northbridge/amd/amdk8/coherent_ht.c | 118 ++++++++++++++++++++------------ 1 file changed, 75 insertions(+), 43 deletions(-) (limited to 'src') diff --git a/src/northbridge/amd/amdk8/coherent_ht.c b/src/northbridge/amd/amdk8/coherent_ht.c index 60f2f0242c..32d040c673 100644 --- a/src/northbridge/amd/amdk8/coherent_ht.c +++ b/src/northbridge/amd/amdk8/coherent_ht.c @@ -303,9 +303,28 @@ static void setup_row_local(u8 source, u8 row) // source will be 7 when it is fo static void setup_row_direct(u8 source, u8 dest, u8 linkn) { uint32_t val; - val = 1<<16; - val |= 1<<(linkn+1); + 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 { + val_s = get_row(source, 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(source,dest, val); } static uint8_t get_linkn_first(uint8_t byte) @@ -340,25 +359,22 @@ static void setup_row_indirect(u8 source, u8 dest, u8 gateway, u8 diff) { //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_g; uint32_t val; - uint8_t byte; -#warning "FIXME is it the way to set the RESPONSE TABLE for indirect?" -#warning "FIXME I don't know how to set BROADCAST TABLE for indirect, 1?" val_s = get_row(source, source); - val_g = get_row(source, gateway); + val = get_row(source, gateway); - val = val_g & 0xff; + val &= 0xffff; val_s >>=16; val_s &=0xfe; #if !CROSS_BAR_47_56 if(((source&1)!=(dest &1)) && (val_s!=val) ) { // use another connect as response val_s -= val; #if CONFIG_MAX_CPUS>4 + uint8_t byte; // Some node have two links left byte = val_s; byte = get_linkn_last_count(byte); - if((byte>>2)>1) { + if((byte>>2)>1) { // make sure not the corner if(source>16) - link_connection(source, gateway))<<16; + } + + #else if(diff && (val_s!=val) ) { // use another connect as response val_s -= val; #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) { + if((byte>>2)>1) { // make sure not the corner if(source>16) - link_connection(source, gateway))<<16; } #endif @@ -424,36 +457,30 @@ static void clear_temp_row(u8 source) static void setup_remote_row_direct(u8 source, u8 dest, u8 linkn) { uint32_t val; - val = 1<<16; - val |= 1<<(linkn+1); - val |= 1<<(linkn+1+8); //for direct connect response route should equal to request table - fill_row(7,dest, val ); -} -#if CONFIG_MAX_CPUS>2 -static void setup_remote_row_indirect(u8 source, u8 dest, u8 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_g; - uint32_t val; - - val_s = get_row(7, source); - val_g = get_row(7, gateway); - - val = val_g & 0xff; - val_s >>=16; - val_s &=0xfe; - if(val_s!=val) { // use another connect as response - val_s -= val; - val |= 1 | (val_s<<8); + 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 { - val = val_g; // all the same to gateway + //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; } - - fill_row(7, dest, val); - -} -#endif +#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 ); +} static void setup_remote_node(u8 node) { @@ -487,6 +514,10 @@ static void setup_remote_node(u8 node) 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(); } @@ -1248,6 +1279,7 @@ static unsigned verify_mp_capabilities(unsigned nodes) return 1; } + static void clear_dead_routes(unsigned nodes) { int last_row; -- cgit v1.2.3