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@ -20,33 +20,6 @@
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#include "arch/romcc_io.h"
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#include "amdk8.h"
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/*
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* Until we have a completely dynamic setup we want
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* to be able to map different cpu graphs.
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*/
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#define UP 0x00
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#define ACROSS 0x20
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#define DOWN 0x40
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/*
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* set some default values. These are used if they are not
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* differently defined in the motherboard's auto.c file.
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* See src/mainboard/amd/quartet/auto.c for an example.
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*/
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#ifndef CONNECTION_0_1
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#define CONNECTION_0_1 ACROSS
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#endif
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#ifndef CONNECTION_0_2
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#define CONNECTION_0_2 UP
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#endif
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#ifndef CONNECTION_1_3
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#define CONNECTION_1_3 UP
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#endif
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/* when generating a temporary row configuration we
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* don't want broadcast to be enabled for that node.
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*/
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@ -68,6 +41,34 @@ typedef int bool;
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#define TRUE (-1)
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#define FALSE (0)
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static u8 link_to_register(int ldt)
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{
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/*
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* [ 0: 3] Request Route
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* [0] Route to this node
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* [1] Route to Link 0
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* [2] Route to Link 1
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* [3] Route to Link 2
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*/
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if (ldt&0x08) return 0x40;
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if (ldt&0x04) return 0x20;
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if (ldt&0x02) return 0x00;
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/* we should never get here */
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print_debug("Unknown Link\n");
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return 0;
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}
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static int link_connection(int src, int dest)
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{
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/* we generate the needed link information from the rows
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* by taking the Request Route of the according row.
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*/
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return generate_row(src, dest, CONFIG_MAX_CPUS) & 0x0f;
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}
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static void disable_probes(void)
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{
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/* disable read/write/fill probes for uniprocessor setup
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@ -367,7 +368,7 @@ static struct setup_smp_result setup_smp(void)
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/* Setup and check a temporary connection to node 1 */
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setup_temp_row(0, 1, result.cpus);
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if (!check_connection(0, 7, CONNECTION_0_1)) {
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if (!check_connection(0, 7, link_to_register(link_connection(0,1)))) {
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print_debug("No connection to Node 1.\r\n");
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clear_temp_row(0); /* delete temp connection */
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setup_uniprocessor(); /* and get up working */
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@ -376,8 +377,7 @@ static struct setup_smp_result setup_smp(void)
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}
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/* We found 2 nodes so far */
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result.needs_reset =
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optimize_connection(NODE_HT(0), 0x80 + CONNECTION_0_1, NODE_HT(7), 0x80 + CONNECTION_0_1);
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setup_node(0, result.cpus); /* Node 1 is there. Setup Node 0 correctly */
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setup_remote_node(1, result.cpus); /* Setup the routes on the remote node */
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rename_temp_node(1); /* Rename Node 7 to Node 1 */
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@ -385,13 +385,17 @@ static struct setup_smp_result setup_smp(void)
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clear_temp_row(0); /* delete temporary connection */
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result.needs_reset = optimize_connection(
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NODE_HT(0), 0x80 + link_to_register(link_connection(0,1)),
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NODE_HT(1), 0x80 + link_to_register(link_connection(1,0)) );
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#if CONFIG_MAX_CPUS > 2
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result.cpus=4;
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/* Setup and check temporary connection from Node 0 to Node 2 */
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setup_temp_row(0,2, result.cpus);
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if (!check_connection(0, 7, CONNECTION_0_2)) {
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if (!check_connection(0, 7, link_to_register(link_connection(0,2))) ) {
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print_debug("No connection to Node 2.\r\n");
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clear_temp_row(0); /* delete temp connection */
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result.cpus = 2;
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@ -405,7 +409,7 @@ static struct setup_smp_result setup_smp(void)
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setup_temp_row(0,1, result.cpus); /* temp. link between nodes 0 and 1 */
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setup_temp_row(1,3, result.cpus); /* temp. link between nodes 1 and 3 */
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if (!check_connection(1, 7, CONNECTION_1_3)) {
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if (!check_connection(1, 7, link_to_register(link_connection(1,3)))) {
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print_debug("No connection to Node 3.\r\n");
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clear_temp_row(0); /* delete temp connection */
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clear_temp_row(1); /* delete temp connection */
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@ -413,8 +417,6 @@ static struct setup_smp_result setup_smp(void)
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return result;
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}
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#warning "FIXME optimize the physical connections"
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/* We found 4 nodes so far. Now setup all nodes for 4p */
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setup_node(0, result.cpus); /* The first 2 nodes are configured */
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@ -436,6 +438,19 @@ static struct setup_smp_result setup_smp(void)
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clear_temp_row(2);
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clear_temp_row(3);
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/* optimize physical connections - by LYH */
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result.needs_reset = optimize_connection(
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NODE_HT(0), 0x80 + link_to_register(link_connection(0,2)),
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NODE_HT(2), 0x80 + link_to_register(link_connection(2,0)) );
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result.needs_reset = optimize_connection(
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NODE_HT(1), 0x80 + link_to_register(link_connection(1,3)),
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NODE_HT(3), 0x80 + link_to_register(link_connection(3,1)) );
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result.needs_reset = optimize_connection(
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NODE_HT(2), 0x80 + link_to_register(link_connection(2,3)),
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NODE_HT(3), 0x80 + link_to_register(link_connection(3,2)) );
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#endif
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print_debug_hex8(result.cpus);
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print_debug(" nodes initialized.\r\n");
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