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From 6e4bf582d1d1cf515f1dec738e02bb7e123ac227 Mon Sep 17 00:00:00 2001
From: Timothy Pearson <tpearson@raptorengineeringinc.com>
Date: Sat, 8 Aug 2015 22:14:59 -0500
Subject: [PATCH 109/143] cpu/amd/family_10h-family_15h: Set up SRI to XCS
Token Count registers on Family 15h
Change-Id: Ic992efad11d8e231ec85c793cf1e478bea0b9d3e
Signed-off-by: Timothy Pearson <tpearson@raptorengineeringinc.com>
---
src/cpu/amd/family_10h-family_15h/init_cpus.c | 40 +++++++++++++++++++++++++
1 file changed, 40 insertions(+)
diff --git a/src/cpu/amd/family_10h-family_15h/init_cpus.c b/src/cpu/amd/family_10h-family_15h/init_cpus.c
index 59d745d..f4254f0 100644
--- a/src/cpu/amd/family_10h-family_15h/init_cpus.c
+++ b/src/cpu/amd/family_10h-family_15h/init_cpus.c
@@ -1643,6 +1643,46 @@ static void cpuSetAMDPCI(u8 node)
pci_write_config32(NODE_PCI(node, 3), (link << 2) + 0x148, dword);
}
}
+
+ /* Set up the SRI to XCS Token Count */
+ uint8_t free_tok;
+ uint8_t up_rsp_tok;
+
+ /* Set defaults */
+ free_tok = 0xa;
+ up_rsp_tok = 0x3;
+
+ if (!dual_node) {
+ free_tok = 0xa;
+ up_rsp_tok = 0x3;
+ } else {
+ if ((sockets == 1)
+ || ((sockets == 2) && (sockets_populated == 1))) {
+ if (probe_filter_enabled) {
+ free_tok = 0x9;
+ up_rsp_tok = 0x3;
+ } else {
+ free_tok = 0xa;
+ up_rsp_tok = 0x3;
+ }
+ } else if ((sockets == 2) && (sockets_populated == 2)) {
+ free_tok = 0xb;
+ up_rsp_tok = 0x1;
+ } else if ((sockets == 4) && (sockets_populated == 2)) {
+ free_tok = 0xa;
+ up_rsp_tok = 0x3;
+ } else if ((sockets == 4) && (sockets_populated == 4)) {
+ free_tok = 0x9;
+ up_rsp_tok = 0x1;
+ }
+ }
+
+ dword = pci_read_config32(NODE_PCI(node, 3), 0x140);
+ dword &= ~(0xf << 20); /* FreeTok = free_tok */
+ dword |= ((free_tok & 0xf) << 20);
+ dword &= ~(0x3 << 8); /* UpRspTok = up_rsp_tok */
+ dword |= ((up_rsp_tok & 0x3) << 8);
+ pci_write_config32(NODE_PCI(node, 3), 0x140, dword);
}
printk(BIOS_DEBUG, " done\n");
--
1.7.9.5
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