| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>, Raptor Engineering |
| * Copyright (C) 2007 Advanced Micro Devices, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| */ |
| |
| /* |
| *---------------------------------------------------------------------------- |
| * MODULES USED |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| #include "h3finit.h" |
| #include "h3ffeat.h" |
| #include "h3ncmn.h" |
| #include "h3gtopo.h" |
| #include "AsPsNb.h" |
| |
| #include <arch/cpu.h> |
| #include <device/pci.h> |
| #include <device/pci_ops.h> |
| #include <console/console.h> |
| #include <cpu/x86/lapic_def.h> |
| #include <cpu/amd/msr.h> |
| #include <device/pci_def.h> |
| #include <northbridge/amd/amdfam10/raminit.h> |
| #include <northbridge/amd/amdfam10/amdfam10.h> |
| |
| /*---------------------------------------------------------------------------- |
| * DEFINITIONS AND MACROS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| #define NVRAM_LIMIT_HT_SPEED_200 0x12 |
| #define NVRAM_LIMIT_HT_SPEED_300 0x11 |
| #define NVRAM_LIMIT_HT_SPEED_400 0x10 |
| #define NVRAM_LIMIT_HT_SPEED_500 0xf |
| #define NVRAM_LIMIT_HT_SPEED_600 0xe |
| #define NVRAM_LIMIT_HT_SPEED_800 0xd |
| #define NVRAM_LIMIT_HT_SPEED_1000 0xc |
| #define NVRAM_LIMIT_HT_SPEED_1200 0xb |
| #define NVRAM_LIMIT_HT_SPEED_1400 0xa |
| #define NVRAM_LIMIT_HT_SPEED_1600 0x9 |
| #define NVRAM_LIMIT_HT_SPEED_1800 0x8 |
| #define NVRAM_LIMIT_HT_SPEED_2000 0x7 |
| #define NVRAM_LIMIT_HT_SPEED_2200 0x6 |
| #define NVRAM_LIMIT_HT_SPEED_2400 0x5 |
| #define NVRAM_LIMIT_HT_SPEED_2600 0x4 |
| #define NVRAM_LIMIT_HT_SPEED_2800 0x3 |
| #define NVRAM_LIMIT_HT_SPEED_3000 0x2 |
| #define NVRAM_LIMIT_HT_SPEED_3200 0x1 |
| #define NVRAM_LIMIT_HT_SPEED_AUTO 0x0 |
| |
| static const uint32_t ht_speed_limit[20] = |
| {0xFFFFF, 0xFFFFF, 0x7FFFF, 0x3FFFF, |
| 0x0FFFF, 0x07FFF, 0x03FFF, 0x01FFF, |
| 0x00FFF, 0x007FF, 0x003FF, 0x001FF, |
| 0x000FF, 0x0007F, 0x0003F, 0x0001F, |
| 0x0000F, 0x00007, 0x00003, 0x00001}; |
| |
| static const struct ht_speed_limit_map_t { |
| uint16_t mhz; |
| uint8_t nvram; |
| } ht_speed_limit_map[] = { |
| {0, NVRAM_LIMIT_HT_SPEED_AUTO}, |
| {200, NVRAM_LIMIT_HT_SPEED_200}, |
| {300, NVRAM_LIMIT_HT_SPEED_300}, |
| {400, NVRAM_LIMIT_HT_SPEED_400}, |
| {500, NVRAM_LIMIT_HT_SPEED_500}, |
| {600, NVRAM_LIMIT_HT_SPEED_600}, |
| {800, NVRAM_LIMIT_HT_SPEED_800}, |
| {1000, NVRAM_LIMIT_HT_SPEED_1000}, |
| {1200, NVRAM_LIMIT_HT_SPEED_1200}, |
| {1400, NVRAM_LIMIT_HT_SPEED_1400}, |
| {1600, NVRAM_LIMIT_HT_SPEED_1600}, |
| {1800, NVRAM_LIMIT_HT_SPEED_1800}, |
| {2000, NVRAM_LIMIT_HT_SPEED_2000}, |
| {2200, NVRAM_LIMIT_HT_SPEED_2200}, |
| {2400, NVRAM_LIMIT_HT_SPEED_2400}, |
| {2600, NVRAM_LIMIT_HT_SPEED_2600}, |
| {2800, NVRAM_LIMIT_HT_SPEED_2800}, |
| {3000, NVRAM_LIMIT_HT_SPEED_3000}, |
| {3200, NVRAM_LIMIT_HT_SPEED_3200}, |
| }; |
| |
| static const uint32_t ht_speed_mhz_to_hw(uint16_t mhz) |
| { |
| size_t i; |
| for (i = 0; i < ARRAY_SIZE(ht_speed_limit_map); i++) |
| if (ht_speed_limit_map[i].mhz == mhz) |
| return ht_speed_limit[ht_speed_limit_map[i].nvram]; |
| |
| printk(BIOS_WARNING, |
| "WARNING: Invalid HT link limit frequency %d specified, ignoring...\n", |
| mhz); |
| return ht_speed_limit[NVRAM_LIMIT_HT_SPEED_AUTO]; |
| } |
| |
| /*---------------------------------------------------------------------------- |
| * TYPEDEFS AND STRUCTURES |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * PROTOTYPES OF LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * EXPORTED FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| |
| /*---------------------------------------------------------------------------- |
| * LOCAL FUNCTIONS |
| * |
| *---------------------------------------------------------------------------- |
| */ |
| #ifndef HT_BUILD_NC_ONLY |
| /* |
| ************************************************************************** |
| * Routing table decompressor |
| ************************************************************************** |
| */ |
| |
| /* |
| ************************************************************************** |
| * Graph Support routines |
| * These routines provide support for dealing with the graph representation |
| * of the topologies, along with the routing table information for that topology. |
| * The routing information is compressed and these routines currently decompress |
| * 'on the fly'. A graph is represented as a set of routes. All the edges in the |
| * graph are routes; a direct route from node i to node j exists in the graph IFF |
| * there is an edge directly connecting node i to node j. All other routes designate |
| * the edge which the route to that node initially takes, by designating a node |
| * to which a direct connection exists. That is, the route to non-adjacent node j |
| * from node i specifies node k where node i directly connects to node k. |
| * |
| * |
| * pseudo definition of compressed graph: |
| * typedef struct |
| * { |
| * BIT broadcast[8]; |
| * uint4 responseRoute; |
| * uint4 requestRoute; |
| * } sRoute; |
| * typedef struct |
| * { |
| * u8 size; |
| * sRoute graph[size][size]; |
| * } sGraph; |
| * |
| ************************************************************************** |
| */ |
| |
| /*---------------------------------------------------------------------------------------- |
| * u8 |
| * graphHowManyNodes(u8 *graph) |
| * |
| * Description: |
| * Returns the number of nodes in the compressed graph |
| * |
| * Parameters: |
| * @param[in] graph = a compressed graph |
| * @param[out] results = the number of nodes in the graph |
| * --------------------------------------------------------------------------------------- |
| */ |
| static u8 graphHowManyNodes(u8 *graph) |
| { |
| return graph[0]; |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * BOOL |
| * graphIsAdjacent(u8 *graph, u8 nodeA, u8 nodeB) |
| * |
| * Description: |
| * Returns true if NodeA is directly connected to NodeB, false otherwise |
| * (if NodeA == NodeB also returns false) |
| * Relies on rule that directly connected nodes always route requests directly. |
| * |
| * Parameters: |
| * @param[in] graph = the graph to examine |
| * @param[in] nodeA = the node number of the first node |
| * @param[in] nodeB = the node number of the second node |
| * @param[out] results = true if nodeA connects to nodeB false if not |
| * --------------------------------------------------------------------------------------- |
| */ |
| static BOOL graphIsAdjacent(u8 *graph, u8 nodeA, u8 nodeB) |
| { |
| u8 size = graph[0]; |
| ASSERT(size <= MAX_NODES); |
| ASSERT((nodeA < size) && (nodeB < size)); |
| return (graph[1+(nodeA*size+nodeB)*2+1] & 0x0F) == nodeB; |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * u8 |
| * graphGetRsp(u8 *graph, u8 nodeA, u8 nodeB) |
| * |
| * Description: |
| * Returns the graph node used by nodeA to route responses targeted at nodeB. |
| * This will be a node directly connected to nodeA (possibly nodeB itself), |
| * or "Route to Self" if nodeA and nodeB are the same node. |
| * Note that all node numbers are abstract node numbers of the topology graph, |
| * it is the responsibility of the caller to apply any permutation needed. |
| * |
| * Parameters: |
| * @param[in] u8 graph = the graph to examine |
| * @param[in] u8 nodeA = the node number of the first node |
| * @param[in] u8 nodeB = the node number of the second node |
| * @param[out] u8 results = The response route node |
| * --------------------------------------------------------------------------------------- |
| */ |
| static u8 graphGetRsp(u8 *graph, u8 nodeA, u8 nodeB) |
| { |
| u8 size = graph[0]; |
| ASSERT(size <= MAX_NODES); |
| ASSERT((nodeA < size) && (nodeB < size)); |
| return (graph[1+(nodeA*size+nodeB)*2+1] & 0xF0)>>4; |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * u8 |
| * graphGetReq(u8 *graph, u8 nodeA, u8 nodeB) |
| * |
| * Description: |
| * Returns the graph node used by nodeA to route requests targeted at nodeB. |
| * This will be a node directly connected to nodeA (possibly nodeB itself), |
| * or "Route to Self" if nodeA and nodeB are the same node. |
| * Note that all node numbers are abstract node numbers of the topology graph, |
| * it is the responsibility of the caller to apply any permutation needed. |
| * |
| * Parameters: |
| * @param[in] graph = the graph to examine |
| * @param[in] nodeA = the node number of the first node |
| * @param[in] nodeB = the node number of the second node |
| * @param[out] results = The request route node |
| * --------------------------------------------------------------------------------------- |
| */ |
| static u8 graphGetReq(u8 *graph, u8 nodeA, u8 nodeB) |
| { |
| u8 size = graph[0]; |
| ASSERT(size <= MAX_NODES); |
| ASSERT((nodeA < size) && (nodeB < size)); |
| return (graph[1+(nodeA*size+nodeB)*2+1] & 0x0F); |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * u8 |
| * graphGetBc(u8 *graph, u8 nodeA, u8 nodeB) |
| * |
| * Description: |
| * Returns a bit vector of nodes that nodeA should forward a broadcast from |
| * nodeB towards |
| * |
| * Parameters: |
| * @param[in] graph = the graph to examine |
| * @param[in] nodeA = the node number of the first node |
| * @param[in] nodeB = the node number of the second node |
| * OU results = the broadcast routes for nodeA from nodeB |
| * --------------------------------------------------------------------------------------- |
| */ |
| static u8 graphGetBc(u8 *graph, u8 nodeA, u8 nodeB) |
| { |
| u8 size = graph[0]; |
| ASSERT(size <= MAX_NODES); |
| ASSERT((nodeA < size) && (nodeB < size)); |
| return graph[1+(nodeA*size+nodeB)*2]; |
| } |
| |
| |
| /*************************************************************************** |
| *** GENERIC HYPERTRANSPORT DISCOVERY CODE *** |
| ***************************************************************************/ |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * routeFromBSP(u8 targetNode, u8 actualTarget, sMainData *pDat) |
| * |
| * Description: |
| * Ensure a request / response route from target node to bsp. Since target node is |
| * always a predecessor of actual target node, each node gets a route to actual target |
| * on the link that goes to target. The routing produced by this routine is adequate |
| * for config access during discovery, but NOT for coherency. |
| * |
| * Parameters: |
| * @param[in] u8 targetNode = the path to actual target goes through target |
| * @param[in] u8 actualTarget = the ultimate target being routed to |
| * @param[in] sMainData* pDat = our global state, port config info |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void routeFromBSP(u8 targetNode, u8 actualTarget, sMainData *pDat) |
| { |
| u8 predecessorNode, predecessorLink, currentPair; |
| |
| if (targetNode == 0) |
| return; /* BSP has no predecessor, stop */ |
| |
| /* Search for the link that connects targetNode to its predecessor */ |
| currentPair = 0; |
| while (pDat->PortList[currentPair*2+1].NodeID != targetNode) |
| { |
| currentPair++; |
| ASSERT(currentPair < pDat->TotalLinks); |
| } |
| |
| predecessorNode = pDat->PortList[currentPair*2].NodeID; |
| predecessorLink = pDat->PortList[currentPair*2].Link; |
| |
| /* Recursively call self to ensure the route from the BSP to the Predecessor */ |
| /* Node is established */ |
| routeFromBSP(predecessorNode, actualTarget, pDat); |
| |
| pDat->nb->writeRoutingTable(predecessorNode, actualTarget, predecessorLink, pDat->nb); |
| } |
| |
| /*---------------------------------------------------------------------------*/ |
| |
| /** |
| * u8 |
| * convertNodeToLink(u8 srcNode, u8 targetNode, sMainData *pDat) |
| * |
| * Description: |
| * Return the link on source node which connects to target node |
| * |
| * Parameters: |
| * @param[in] srcNode = the source node |
| * @param[in] targetNode = the target node to find the link to |
| * @param[in] pDat = our global state |
| * @return the link on source which connects to target |
| * |
| */ |
| static u8 convertNodeToLink(u8 srcNode, u8 targetNode, sMainData *pDat) |
| { |
| u8 targetlink = INVALID_LINK; |
| u8 k; |
| |
| for (k = 0; k < pDat->TotalLinks*2; k += 2) |
| { |
| if ((pDat->PortList[k+0].NodeID == srcNode) && (pDat->PortList[k+1].NodeID == targetNode)) |
| { |
| targetlink = pDat->PortList[k+0].Link; |
| break; |
| } |
| else if ((pDat->PortList[k+1].NodeID == srcNode) && (pDat->PortList[k+0].NodeID == targetNode)) |
| { |
| targetlink = pDat->PortList[k+1].Link; |
| break; |
| } |
| } |
| ASSERT(targetlink != INVALID_LINK); |
| |
| return targetlink; |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * htDiscoveryFloodFill(sMainData *pDat) |
| * |
| * Description: |
| * Discover all coherent devices in the system, initializing some basics like node IDs |
| * and total nodes found in the process. As we go we also build a representation of the |
| * discovered system which we will use later to program the routing tables. During this |
| * step, the routing is via default link back to BSP and to each new node on the link it |
| * was discovered on (no coherency is active yet). |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void htDiscoveryFloodFill(sMainData *pDat) |
| { |
| uint8_t currentNode = 0; |
| uint8_t currentLink; |
| uint8_t currentLinkID; |
| |
| /* NOTE |
| * Each node inside a dual node (socket G34) processor must share |
| * an adjacent node ID. Alter the link scan order such that the |
| * other internal node is always scanned first... |
| */ |
| uint8_t currentLinkScanOrder_Default[8] = {0, 1, 2, 3, 4, 5, 6, 7}; |
| uint8_t currentLinkScanOrder_G34_Fam10[8] = {1, 0, 2, 3, 4, 5, 6, 7}; |
| uint8_t currentLinkScanOrder_G34_Fam15[8] = {2, 0, 1, 3, 4, 5, 6, 7}; |
| |
| uint8_t fam15h = 0; |
| uint8_t rev_gte_d = 0; |
| uint8_t dual_node = 0; |
| uint32_t f3xe8; |
| uint32_t family; |
| uint32_t model; |
| |
| f3xe8 = pci_read_config32(NODE_PCI(0, 3), 0xe8); |
| |
| family = model = cpuid_eax(0x80000001); |
| model = ((model & 0xf0000) >> 12) | ((model & 0xf0) >> 4); |
| family = ((family & 0xf00000) >> 16) | ((family & 0xf00) >> 8); |
| |
| if (family >= 0x6f) { |
| /* Family 15h or later */ |
| fam15h = 1; |
| } |
| |
| if ((model >= 0x8) || fam15h) |
| /* Revision D or later */ |
| rev_gte_d = 1; |
| |
| if (rev_gte_d) |
| /* Check for dual node capability */ |
| if (f3xe8 & 0x20000000) |
| dual_node = 1; |
| |
| /* Entries are always added in pairs, the even indices are the 'source' |
| * side closest to the BSP, the odd indices are the 'destination' side |
| */ |
| while (currentNode <= pDat->NodesDiscovered) |
| { |
| u32 temp; |
| |
| if (currentNode != 0) |
| { |
| /* Set path from BSP to currentNode */ |
| routeFromBSP(currentNode, currentNode, pDat); |
| |
| /* Set path from BSP to currentNode for currentNode+1 if |
| * currentNode+1 != MAX_NODES |
| */ |
| if (currentNode+1 != MAX_NODES) |
| routeFromBSP(currentNode, currentNode+1, pDat); |
| |
| /* Configure currentNode to route traffic to the BSP through its |
| * default link |
| */ |
| pDat->nb->writeRoutingTable(currentNode, 0, pDat->nb->readDefLnk(currentNode, pDat->nb), pDat->nb); |
| } |
| |
| /* Set currentNode's NodeID field to currentNode */ |
| pDat->nb->writeNodeID(currentNode, currentNode, pDat->nb); |
| |
| /* Enable routing tables on currentNode */ |
| pDat->nb->enableRoutingTables(currentNode, pDat->nb); |
| |
| for (currentLinkID = 0; currentLinkID < pDat->nb->maxLinks; currentLinkID++) |
| { |
| BOOL linkfound; |
| u8 token; |
| |
| if (currentLinkID < 8) { |
| if (dual_node) { |
| if (fam15h) |
| currentLink = currentLinkScanOrder_G34_Fam15[currentLinkID]; |
| else |
| currentLink = currentLinkScanOrder_G34_Fam10[currentLinkID]; |
| } else { |
| currentLink = currentLinkScanOrder_Default[currentLinkID]; |
| } |
| } else { |
| currentLink = currentLinkID; |
| } |
| |
| if (pDat->HtBlock->AMD_CB_IgnoreLink && pDat->HtBlock->AMD_CB_IgnoreLink(currentNode, currentLink)) |
| continue; |
| |
| if (pDat->nb->readTrueLinkFailStatus(currentNode, currentLink, pDat, pDat->nb)) |
| continue; |
| |
| /* Make sure that the link is connected, coherent, and ready */ |
| if (!pDat->nb->verifyLinkIsCoherent(currentNode, currentLink, pDat->nb)) |
| continue; |
| |
| |
| /* Test to see if the currentLink has already been explored */ |
| linkfound = FALSE; |
| for (temp = 0; temp < pDat->TotalLinks; temp++) |
| { |
| if ((pDat->PortList[temp*2+1].NodeID == currentNode) && |
| (pDat->PortList[temp*2+1].Link == currentLink)) |
| { |
| linkfound = TRUE; |
| break; |
| } |
| } |
| if (linkfound) |
| { |
| /* We had already expored this link */ |
| continue; |
| } |
| |
| if (pDat->nb->handleSpecialLinkCase(currentNode, currentLink, pDat, pDat->nb)) |
| { |
| continue; |
| } |
| |
| /* Modify currentNode's routing table to use currentLink to send |
| * traffic to currentNode+1 |
| */ |
| pDat->nb->writeRoutingTable(currentNode, currentNode+1, currentLink, pDat->nb); |
| |
| /* Check the northbridge of the node we just found, to make sure it is compatible |
| * before doing anything else to it. |
| */ |
| if (!pDat->nb->isCompatible(currentNode+1, pDat->nb)) |
| { |
| u8 nodeToKill; |
| |
| /* Notify BIOS of event (while variables are still the same) */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventCohFamilyFeud evt; |
| evt.eSize = sizeof(sHtEventCohFamilyFeud); |
| evt.node = currentNode; |
| evt.link = currentLink; |
| evt.totalNodes = pDat->NodesDiscovered; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_COH_FAMILY_FEUD, |
| (u8 *)&evt); |
| } |
| |
| /* If node is not compatible, force boot to 1P |
| * If they are not compatible stop cHT init and: |
| * 1. Disable all cHT links on the BSP |
| * 2. Configure the BSP routing tables as a UP. |
| * 3. Notify main BIOS. |
| */ |
| pDat->NodesDiscovered = 0; |
| currentNode = 0; |
| pDat->TotalLinks = 0; |
| /* Abandon our coherent link data structure. At this point there may |
| * be coherent links on the BSP that are not yet in the portList, and |
| * we have to turn them off anyway. So depend on the hardware to tell us. |
| */ |
| for (currentLink = 0; currentLink < pDat->nb->maxLinks; currentLink++) |
| { |
| /* Stop all links which are connected, coherent, and ready */ |
| if (pDat->nb->verifyLinkIsCoherent(currentNode, currentLink, pDat->nb)) |
| pDat->nb->stopLink(currentNode, currentLink, pDat->nb); |
| } |
| |
| for (nodeToKill = 0; nodeToKill < pDat->nb->maxNodes; nodeToKill++) |
| { |
| pDat->nb->writeFullRoutingTable(0, nodeToKill, ROUTETOSELF, ROUTETOSELF, 0, pDat->nb); |
| } |
| |
| /* End Coherent Discovery */ |
| STOP_HERE; |
| break; |
| } |
| |
| /* Read token from Current+1 */ |
| token = pDat->nb->readToken(currentNode+1, pDat->nb); |
| ASSERT(token <= pDat->NodesDiscovered); |
| if (token == 0) |
| { |
| pDat->NodesDiscovered++; |
| ASSERT(pDat->NodesDiscovered < pDat->nb->maxNodes); |
| /* Check the capability of northbridges against the currently known configuration */ |
| if (!pDat->nb->isCapable(currentNode+1, pDat, pDat->nb)) |
| { |
| u8 nodeToKill; |
| |
| /* Notify BIOS of event */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventCohMpCapMismatch evt; |
| evt.eSize = sizeof(sHtEventCohMpCapMismatch); |
| evt.node = currentNode; |
| evt.link = currentLink; |
| evt.sysMpCap = pDat->sysMpCap; |
| evt.totalNodes = pDat->NodesDiscovered; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_COH_MPCAP_MISMATCH, |
| (u8 *)&evt); |
| } |
| |
| pDat->NodesDiscovered = 0; |
| currentNode = 0; |
| pDat->TotalLinks = 0; |
| |
| for (nodeToKill = 0; nodeToKill < pDat->nb->maxNodes; nodeToKill++) |
| { |
| pDat->nb->writeFullRoutingTable(0, nodeToKill, ROUTETOSELF, ROUTETOSELF, 0, pDat->nb); |
| } |
| |
| /* End Coherent Discovery */ |
| STOP_HERE; |
| break; |
| } |
| |
| token = pDat->NodesDiscovered; |
| pDat->nb->writeToken(currentNode+1, token, pDat->nb); |
| /* Inform that we have discovered a node, so that logical id to |
| * socket mapping info can be recorded. |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventCohNodeDiscovered evt; |
| evt.eSize = sizeof(sHtEventCohNodeDiscovered); |
| evt.node = currentNode; |
| evt.link = currentLink; |
| evt.newNode = token; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_INFO, |
| HT_EVENT_COH_NODE_DISCOVERED, |
| (u8 *)&evt); |
| } |
| } |
| |
| if (pDat->TotalLinks == MAX_PLATFORM_LINKS) |
| { |
| /* |
| * Exceeded our capacity to describe all coherent links found in the system. |
| * Error strategy: |
| * Auto recovery is not possible because data space is already all used. |
| * If the callback is not implemented or returns we will continue to initialize |
| * the fabric we are capable of representing, adding no more nodes or links. |
| * This should yield a bootable topology, but likely not the one intended. |
| * We cannot continue discovery, there may not be any way to route a new |
| * node back to the BSP if we can't add links to our representation of the system. |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventCohLinkExceed evt; |
| evt.eSize = sizeof(sHtEventCohLinkExceed); |
| evt.node = currentNode; |
| evt.link = currentLink; |
| evt.targetNode = token; |
| evt.totalNodes = pDat->NodesDiscovered; |
| evt.maxLinks = pDat->nb->maxLinks; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_COH_LINK_EXCEED, |
| (u8 *)&evt); |
| } |
| /* Force link and node loops to halt */ |
| STOP_HERE; |
| currentNode = pDat->NodesDiscovered; |
| break; |
| } |
| |
| pDat->PortList[pDat->TotalLinks*2].Type = PORTLIST_TYPE_CPU; |
| pDat->PortList[pDat->TotalLinks*2].Link = currentLink; |
| pDat->PortList[pDat->TotalLinks*2].NodeID = currentNode; |
| |
| pDat->PortList[pDat->TotalLinks*2+1].Type = PORTLIST_TYPE_CPU; |
| pDat->PortList[pDat->TotalLinks*2+1].Link = pDat->nb->readDefLnk(currentNode+1, pDat->nb); |
| pDat->PortList[pDat->TotalLinks*2+1].NodeID = token; |
| |
| pDat->TotalLinks++; |
| |
| if (!pDat->sysMatrix[currentNode][token]) |
| { |
| pDat->sysDegree[currentNode]++; |
| pDat->sysDegree[token]++; |
| pDat->sysMatrix[currentNode][token] = TRUE; |
| pDat->sysMatrix[token][currentNode] = TRUE; |
| } |
| } |
| currentNode++; |
| } |
| } |
| |
| |
| /*************************************************************************** |
| *** ISOMORPHISM BASED ROUTING TABLE GENERATION CODE *** |
| ***************************************************************************/ |
| |
| /*---------------------------------------------------------------------------------------- |
| * BOOL |
| * isoMorph(u8 i, sMainData *pDat) |
| * |
| * Description: |
| * Is graphA isomorphic to graphB? |
| * if this function returns true, then Perm will contain the permutation |
| * required to transform graphB into graphA. |
| * We also use the degree of each node, that is the number of connections it has, to |
| * speed up rejection of non-isomorphic graphs (if there is a node in graphA with n |
| * connections, there must be at least one unmatched in graphB with n connections). |
| * |
| * Parameters: |
| * @param[in] u8 i = the discovered node which we are trying to match |
| * with a permutation the topology |
| * @param[in]/@param[out] sMainData* pDat = our global state, degree and adjacency matrix, |
| * output a permutation if successful |
| * @param[out] BOOL results = the graphs are (or are not) isomorphic |
| * --------------------------------------------------------------------------------------- |
| */ |
| static BOOL isoMorph(u8 i, sMainData *pDat) |
| { |
| u8 j, k; |
| u8 nodecnt; |
| |
| /* We have only been called if nodecnt == pSelected->size ! */ |
| nodecnt = pDat->NodesDiscovered+1; |
| |
| if (i != nodecnt) |
| { |
| /* Keep building the permutation */ |
| for (j = 0; j < nodecnt; j++) |
| { |
| /* Make sure the degree matches */ |
| if (pDat->sysDegree[i] != pDat->dbDegree[j]) |
| continue; |
| |
| /* Make sure that j hasn't been used yet (ought to use a "used" */ |
| /* array instead, might be faster) */ |
| for (k = 0; k < i; k++) |
| { |
| if (pDat->Perm[k] == j) |
| break; |
| } |
| if (k != i) |
| continue; |
| pDat->Perm[i] = j; |
| if (isoMorph(i+1, pDat)) |
| return TRUE; |
| } |
| return FALSE; |
| } else { |
| /* Test to see if the permutation is isomorphic */ |
| for (j = 0; j < nodecnt; j++) |
| { |
| for (k = 0; k < nodecnt; k++) |
| { |
| if (pDat->sysMatrix[j][k] != |
| pDat->dbMatrix[pDat->Perm[j]][pDat->Perm[k]]) |
| return FALSE; |
| } |
| } |
| return TRUE; |
| } |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * lookupComputeAndLoadRoutingTables(sMainData *pDat) |
| * |
| * Description: |
| * Using the description of the fabric topology we discovered, try to find a match |
| * among the supported topologies. A supported topology description matches |
| * the discovered fabric if the nodes can be matched in such a way that all the nodes connected |
| * in one set are exactly the nodes connected in the other (formally, that the graphs are |
| * isomorphic). Which links are used is not really important to matching. If the graphs |
| * match, then there is a permutation of one that translates the node positions and linkages |
| * to the other. |
| * |
| * In order to make the isomorphism test efficient, we test for matched number of nodes |
| * (a 4 node fabric is not isomorphic to a 2 node topology), and provide degrees of nodes |
| * to the isomorphism test. |
| * |
| * The generic routing table solution for any topology is predetermined and represented |
| * as part of the topology. The permutation we computed tells us how to interpret the |
| * routing onto the fabric we discovered. We do this working backward from the last |
| * node discovered to the BSP, writing the routing tables as we go. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state, the discovered fabric, |
| * @param[out] degree matrix, permutation |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void lookupComputeAndLoadRoutingTables(sMainData *pDat) |
| { |
| u8 **pTopologyList; |
| u8 *pSelected; |
| |
| int i, j, k, size; |
| |
| size = pDat->NodesDiscovered + 1; |
| /* Use the provided topology list or the internal, default one. */ |
| pTopologyList = pDat->HtBlock->topolist; |
| if (pTopologyList == NULL) |
| { |
| getAmdTopolist(&pTopologyList); |
| } |
| |
| pSelected = *pTopologyList; |
| while (pSelected != NULL) |
| { |
| if (graphHowManyNodes(pSelected) == size) |
| { |
| /* Build Degree vector and Adjency Matrix for this entry */ |
| for (i = 0; i < size; i++) |
| { |
| pDat->dbDegree[i] = 0; |
| for (j = 0; j < size; j++) |
| { |
| if (graphIsAdjacent(pSelected, i, j)) |
| { |
| pDat->dbMatrix[i][j] = 1; |
| pDat->dbDegree[i]++; |
| } |
| else |
| { |
| pDat->dbMatrix[i][j] = 0; |
| } |
| } |
| } |
| if (isoMorph(0, pDat)) |
| break; /* A matching topology was found */ |
| } |
| |
| pTopologyList++; |
| pSelected = *pTopologyList; |
| } |
| |
| if (pSelected != NULL) |
| { |
| /* Compute the reverse Permutation */ |
| for (i = 0; i < size; i++) |
| { |
| pDat->ReversePerm[pDat->Perm[i]] = i; |
| } |
| |
| /* Start with the last discovered node, and move towards the BSP */ |
| for (i = size-1; i >= 0; i--) |
| { |
| for (j = 0; j < size; j++) |
| { |
| u8 ReqTargetLink, RspTargetLink; |
| u8 ReqTargetNode, RspTargetNode; |
| |
| u8 AbstractBcTargetNodes = graphGetBc(pSelected, pDat->Perm[i], pDat->Perm[j]); |
| u32 BcTargetLinks = 0; |
| |
| for (k = 0; k < MAX_NODES; k++) |
| { |
| if (AbstractBcTargetNodes & ((u32)1<<k)) |
| { |
| BcTargetLinks |= (u32)1 << convertNodeToLink(i, pDat->ReversePerm[k], pDat); |
| } |
| } |
| |
| if (i == j) |
| { |
| ReqTargetLink = ROUTETOSELF; |
| RspTargetLink = ROUTETOSELF; |
| } |
| else |
| { |
| ReqTargetNode = graphGetReq(pSelected, pDat->Perm[i], pDat->Perm[j]); |
| ReqTargetLink = convertNodeToLink(i, pDat->ReversePerm[ReqTargetNode], pDat); |
| |
| RspTargetNode = graphGetRsp(pSelected, pDat->Perm[i], pDat->Perm[j]); |
| RspTargetLink = convertNodeToLink(i, pDat->ReversePerm[RspTargetNode], pDat); |
| } |
| |
| pDat->nb->writeFullRoutingTable(i, j, ReqTargetLink, RspTargetLink, BcTargetLinks, pDat->nb); |
| } |
| /* Clean up discovery 'footprint' that otherwise remains in the routing table. It didn't hurt |
| * anything, but might cause confusion during debug and validation. Do this by setting the |
| * route back to all self routes. Since it's the node that would be one more than actually installed, |
| * this only applies if less than maxNodes were found. |
| */ |
| if (size < pDat->nb->maxNodes) |
| { |
| pDat->nb->writeFullRoutingTable(i, size, ROUTETOSELF, ROUTETOSELF, 0, pDat->nb); |
| } |
| } |
| |
| } |
| else |
| { |
| /* |
| * No Matching Topology was found |
| * Error Strategy: |
| * Auto recovery doesn't seem likely, Force boot as 1P. |
| * For reporting, logging, provide number of nodes |
| * If not implemented or returns, boot as BSP uniprocessor. |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventCohNoTopology evt; |
| evt.eSize = sizeof(sHtEventCohNoTopology); |
| evt.totalNodes = pDat->NodesDiscovered; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_COH_NO_TOPOLOGY, |
| (u8 *)&evt); |
| } |
| STOP_HERE; |
| /* Force 1P */ |
| pDat->NodesDiscovered = 0; |
| pDat->TotalLinks = 0; |
| pDat->nb->enableRoutingTables(0, pDat->nb); |
| } |
| } |
| #endif /* HT_BUILD_NC_ONLY */ |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * finializeCoherentInit(sMainData *pDat) |
| * |
| * Description: |
| * Find the total number of cores and update the number of nodes and cores in all cpus. |
| * Limit CPU config access to installed cpus. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state, number of nodes discovered. |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void finializeCoherentInit(sMainData *pDat) |
| { |
| u8 curNode; |
| |
| u8 totalCores = 0; |
| for (curNode = 0; curNode < pDat->NodesDiscovered+1; curNode++) |
| { |
| totalCores += pDat->nb->getNumCoresOnNode(curNode, pDat->nb); |
| } |
| |
| for (curNode = 0; curNode < pDat->NodesDiscovered+1; curNode++) |
| { |
| pDat->nb->setTotalNodesAndCores(curNode, pDat->NodesDiscovered+1, totalCores, pDat->nb); |
| } |
| |
| for (curNode = 0; curNode < pDat->NodesDiscovered+1; curNode++) |
| { |
| pDat->nb->limitNodes(curNode, pDat->nb); |
| } |
| |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * coherentInit(sMainData *pDat) |
| * |
| * Description: |
| * Perform discovery and initialization of the coherent fabric. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void coherentInit(sMainData *pDat) |
| { |
| #ifdef HT_BUILD_NC_ONLY |
| /* Replace discovery process with: |
| * No other nodes, no coherent links |
| * Enable routing tables on currentNode, for power on self route |
| */ |
| pDat->NodesDiscovered = 0; |
| pDat->TotalLinks = 0; |
| pDat->nb->enableRoutingTables(0, pDat->nb); |
| #else |
| u8 i, j; |
| |
| pDat->NodesDiscovered = 0; |
| pDat->TotalLinks = 0; |
| for (i = 0; i < MAX_NODES; i++) |
| { |
| pDat->sysDegree[i] = 0; |
| for (j = 0; j < MAX_NODES; j++) |
| { |
| pDat->sysMatrix[i][j] = 0; |
| } |
| } |
| |
| htDiscoveryFloodFill(pDat); |
| lookupComputeAndLoadRoutingTables(pDat); |
| #endif |
| finializeCoherentInit(pDat); |
| } |
| |
| /*************************************************************************** |
| *** Non-coherent init code *** |
| *** Algorithms *** |
| ***************************************************************************/ |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * processLink(u8 node, u8 link, sMainData *pDat) |
| * |
| * Description: |
| * Process a non-coherent link, enabling a range of bus numbers, and setting the device |
| * ID for all devices found |
| * |
| * Parameters: |
| * @param[in] u8 node = Node on which to process nc init |
| * @param[in] u8 link = The non-coherent link on that node |
| * @param[in] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void processLink(u8 node, u8 link, sMainData *pDat) |
| { |
| u8 secBus, subBus; |
| u32 currentBUID; |
| u32 temp; |
| u32 unitIDcnt; |
| SBDFO currentPtr; |
| u8 depth; |
| const u8 *pSwapPtr; |
| |
| SBDFO lastSBDFO = ILLEGAL_SBDFO; |
| u8 lastLink = 0; |
| |
| ASSERT(node < pDat->nb->maxNodes && link < pDat->nb->maxLinks); |
| |
| if ((pDat->HtBlock->AMD_CB_OverrideBusNumbers == NULL) |
| || !pDat->HtBlock->AMD_CB_OverrideBusNumbers(node, link, &secBus, &subBus)) |
| { |
| /* Assign Bus numbers */ |
| if (pDat->AutoBusCurrent >= pDat->HtBlock->AutoBusMax) |
| { |
| /* If we run out of Bus Numbers notify, if call back unimplemented or if it |
| * returns, skip this chain |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHTEventNcohBusMaxExceed evt; |
| evt.eSize = sizeof(sHTEventNcohBusMaxExceed); |
| evt.node = node; |
| evt.link = link; |
| evt.bus = pDat->AutoBusCurrent; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR,HT_EVENT_NCOH_BUS_MAX_EXCEED,(u8 *)&evt); |
| } |
| STOP_HERE; |
| return; |
| } |
| |
| if (pDat->UsedCfgMapEntires >= 4) |
| { |
| /* If we have used all the PCI Config maps we can't add another chain. |
| * Notify and if call back is unimplemented or returns, skip this chain. |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventNcohCfgMapExceed evt; |
| evt.eSize = sizeof(sHtEventNcohCfgMapExceed); |
| evt.node = node; |
| evt.link = link; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_NCOH_CFG_MAP_EXCEED, |
| (u8 *)&evt); |
| } |
| STOP_HERE; |
| return; |
| } |
| |
| secBus = pDat->AutoBusCurrent; |
| subBus = secBus + pDat->HtBlock->AutoBusIncrement-1; |
| pDat->AutoBusCurrent += pDat->HtBlock->AutoBusIncrement; |
| } |
| |
| pDat->nb->setCFGAddrMap(pDat->UsedCfgMapEntires, secBus, subBus, node, link, pDat, pDat->nb); |
| pDat->UsedCfgMapEntires++; |
| |
| if ((pDat->HtBlock->AMD_CB_ManualBUIDSwapList != NULL) |
| && pDat->HtBlock->AMD_CB_ManualBUIDSwapList(node, link, &pSwapPtr)) |
| { |
| /* Manual non-coherent BUID assignment */ |
| currentBUID = 1; |
| |
| /* Assign BUID's per manual override */ |
| while (*pSwapPtr != 0xFF) |
| { |
| currentPtr = MAKE_SBDFO(0, secBus, *pSwapPtr, 0, 0); |
| pSwapPtr++; |
| |
| do |
| { |
| AmdPCIFindNextCap(¤tPtr); |
| ASSERT(currentPtr != ILLEGAL_SBDFO); |
| AmdPCIRead(currentPtr, &temp); |
| } while (!IS_HT_SLAVE_CAPABILITY(temp)); |
| |
| currentBUID = *pSwapPtr; |
| pSwapPtr++; |
| AmdPCIWriteBits(currentPtr, 20, 16, ¤tBUID); |
| } |
| |
| /* Build chain of devices */ |
| depth = 0; |
| pSwapPtr++; |
| while (*pSwapPtr != 0xFF) |
| { |
| pDat->PortList[pDat->TotalLinks*2].NodeID = node; |
| if (depth == 0) |
| { |
| pDat->PortList[pDat->TotalLinks*2].Type = PORTLIST_TYPE_CPU; |
| pDat->PortList[pDat->TotalLinks*2].Link = link; |
| } |
| else |
| { |
| pDat->PortList[pDat->TotalLinks*2].Type = PORTLIST_TYPE_IO; |
| pDat->PortList[pDat->TotalLinks*2].Link = 1-lastLink; |
| pDat->PortList[pDat->TotalLinks*2].HostLink = link; |
| pDat->PortList[pDat->TotalLinks*2].HostDepth = depth-1; |
| pDat->PortList[pDat->TotalLinks*2].Pointer = lastSBDFO; |
| } |
| |
| pDat->PortList[pDat->TotalLinks*2+1].Type = PORTLIST_TYPE_IO; |
| pDat->PortList[pDat->TotalLinks*2+1].NodeID = node; |
| pDat->PortList[pDat->TotalLinks*2+1].HostLink = link; |
| pDat->PortList[pDat->TotalLinks*2+1].HostDepth = depth; |
| |
| currentPtr = MAKE_SBDFO(0, secBus, (*pSwapPtr & 0x3F), 0, 0); |
| do |
| { |
| AmdPCIFindNextCap(¤tPtr); |
| ASSERT(currentPtr != ILLEGAL_SBDFO); |
| AmdPCIRead(currentPtr, &temp); |
| } while (!IS_HT_SLAVE_CAPABILITY(temp)); |
| pDat->PortList[pDat->TotalLinks*2+1].Pointer = currentPtr; |
| lastSBDFO = currentPtr; |
| |
| /* Bit 6 indicates whether orientation override is desired. |
| * Bit 7 indicates the upstream link if overriding. |
| */ |
| /* assert catches at least the one known incorrect setting */ |
| ASSERT ((*pSwapPtr & 0x40) || (!(*pSwapPtr & 0x80))); |
| if (*pSwapPtr & 0x40) |
| { |
| /* Override the device's orientation */ |
| lastLink = *pSwapPtr >> 7; |
| } |
| else |
| { |
| /* Detect the device's orientation */ |
| AmdPCIReadBits(currentPtr, 26, 26, &temp); |
| lastLink = (u8)temp; |
| } |
| pDat->PortList[pDat->TotalLinks*2+1].Link = lastLink; |
| |
| depth++; |
| pDat->TotalLinks++; |
| pSwapPtr++; |
| } |
| } |
| else |
| { |
| /* Automatic non-coherent device detection */ |
| depth = 0; |
| currentBUID = 1; |
| while (1) |
| { |
| currentPtr = MAKE_SBDFO(0, secBus, 0, 0, 0); |
| |
| AmdPCIRead(currentPtr, &temp); |
| if (temp == 0xFFFFFFFF) |
| /* No device found at currentPtr */ |
| break; |
| |
| if (pDat->TotalLinks == MAX_PLATFORM_LINKS) |
| { |
| /* |
| * Exceeded our capacity to describe all non-coherent links found in the system. |
| * Error strategy: |
| * Auto recovery is not possible because data space is already all used. |
| */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventNcohLinkExceed evt; |
| evt.eSize = sizeof(sHtEventNcohLinkExceed); |
| evt.node = node; |
| evt.link = link; |
| evt.depth = depth; |
| evt.maxLinks = pDat->nb->maxLinks; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR, |
| HT_EVENT_NCOH_LINK_EXCEED, |
| (u8 *)&evt); |
| } |
| /* Force link loop to halt */ |
| STOP_HERE; |
| break; |
| } |
| |
| pDat->PortList[pDat->TotalLinks*2].NodeID = node; |
| if (depth == 0) |
| { |
| pDat->PortList[pDat->TotalLinks*2].Type = PORTLIST_TYPE_CPU; |
| pDat->PortList[pDat->TotalLinks*2].Link = link; |
| } |
| else |
| { |
| pDat->PortList[pDat->TotalLinks*2].Type = PORTLIST_TYPE_IO; |
| pDat->PortList[pDat->TotalLinks*2].Link = 1-lastLink; |
| pDat->PortList[pDat->TotalLinks*2].HostLink = link; |
| pDat->PortList[pDat->TotalLinks*2].HostDepth = depth-1; |
| pDat->PortList[pDat->TotalLinks*2].Pointer = lastSBDFO; |
| } |
| |
| pDat->PortList[pDat->TotalLinks*2+1].Type = PORTLIST_TYPE_IO; |
| pDat->PortList[pDat->TotalLinks*2+1].NodeID = node; |
| pDat->PortList[pDat->TotalLinks*2+1].HostLink = link; |
| pDat->PortList[pDat->TotalLinks*2+1].HostDepth = depth; |
| |
| do |
| { |
| AmdPCIFindNextCap(¤tPtr); |
| ASSERT(currentPtr != ILLEGAL_SBDFO); |
| AmdPCIRead(currentPtr, &temp); |
| } while (!IS_HT_SLAVE_CAPABILITY(temp)); |
| |
| AmdPCIReadBits(currentPtr, 25, 21, &unitIDcnt); |
| if ((unitIDcnt + currentBUID > 31) || ((secBus == 0) && (unitIDcnt + currentBUID > 24))) |
| { |
| /* An error handler for the case where we run out of BUID's on a chain */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventNcohBuidExceed evt; |
| evt.eSize = sizeof(sHtEventNcohBuidExceed); |
| evt.node = node; |
| evt.link = link; |
| evt.depth = depth; |
| evt.currentBUID = (uint8)currentBUID; |
| evt.unitCount = (uint8)unitIDcnt; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR,HT_EVENT_NCOH_BUID_EXCEED,(u8 *)&evt); |
| } |
| STOP_HERE; |
| break; |
| } |
| AmdPCIWriteBits(currentPtr, 20, 16, ¤tBUID); |
| |
| |
| currentPtr += MAKE_SBDFO(0, 0, currentBUID, 0, 0); |
| AmdPCIReadBits(currentPtr, 20, 16, &temp); |
| if (temp != currentBUID) |
| { |
| /* An error handler for this critical error */ |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| sHtEventNcohDeviceFailed evt; |
| evt.eSize = sizeof(sHtEventNcohDeviceFailed); |
| evt.node = node; |
| evt.link = link; |
| evt.depth = depth; |
| evt.attemptedBUID = (uint8)currentBUID; |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_ERROR,HT_EVENT_NCOH_DEVICE_FAILED,(u8 *)&evt); |
| } |
| STOP_HERE; |
| break; |
| } |
| |
| AmdPCIReadBits(currentPtr, 26, 26, &temp); |
| pDat->PortList[pDat->TotalLinks*2+1].Link = (u8)temp; |
| pDat->PortList[pDat->TotalLinks*2+1].Pointer = currentPtr; |
| |
| lastLink = (u8)temp; |
| lastSBDFO = currentPtr; |
| |
| depth++; |
| pDat->TotalLinks++; |
| currentBUID += unitIDcnt; |
| } |
| if (pDat->HtBlock->AMD_CB_EventNotify) |
| { |
| /* Provide information on automatic device results */ |
| sHtEventNcohAutoDepth evt; |
| evt.eSize = sizeof(sHtEventNcohAutoDepth); |
| evt.node = node; |
| evt.link = link; |
| evt.depth = (depth - 1); |
| |
| pDat->HtBlock->AMD_CB_EventNotify(HT_EVENT_CLASS_INFO,HT_EVENT_NCOH_AUTO_DEPTH,(u8 *)&evt); |
| } |
| } |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * ncInit(sMainData *pDat) |
| * |
| * Description: |
| * Initialize the non-coherent fabric. Begin with the compat link on the BSP, then |
| * find and initialize all other non-coherent chains. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void ncInit(sMainData *pDat) |
| { |
| u8 node, link; |
| u8 compatLink; |
| |
| compatLink = pDat->nb->readSbLink(pDat->nb); |
| processLink(0, compatLink, pDat); |
| |
| for (node = 0; node <= pDat->NodesDiscovered; node++) |
| { |
| for (link = 0; link < pDat->nb->maxLinks; link++) |
| { |
| if (pDat->HtBlock->AMD_CB_IgnoreLink && pDat->HtBlock->AMD_CB_IgnoreLink(node, link)) |
| continue; /* Skip the link */ |
| |
| if (node == 0 && link == compatLink) |
| continue; |
| |
| if (pDat->nb->readTrueLinkFailStatus(node, link, pDat, pDat->nb)) |
| continue; |
| |
| if (pDat->nb->verifyLinkIsNonCoherent(node, link, pDat->nb)) |
| processLink(node, link, pDat); |
| } |
| } |
| } |
| |
| /*************************************************************************** |
| *** Link Optimization *** |
| ***************************************************************************/ |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * regangLinks(sMainData *pDat) |
| * |
| * Description: |
| * Test the sublinks of a link to see if they qualify to be reganged. If they do, |
| * update the port list data to indicate that this should be done. Note that no |
| * actual hardware state is changed in this routine. |
| * |
| * Parameters: |
| * @param[in,out] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void regangLinks(sMainData *pDat) |
| { |
| #ifndef HT_BUILD_NC_ONLY |
| u8 i, j; |
| for (i = 0; i < pDat->TotalLinks*2; i += 2) |
| { |
| ASSERT(pDat->PortList[i].Type < 2 && pDat->PortList[i].Link < pDat->nb->maxLinks); /* Data validation */ |
| ASSERT(pDat->PortList[i+1].Type < 2 && pDat->PortList[i+1].Link < pDat->nb->maxLinks); /* data validation */ |
| ASSERT(!(pDat->PortList[i].Type == PORTLIST_TYPE_IO && pDat->PortList[i+1].Type == PORTLIST_TYPE_CPU)); /* ensure src is closer to the bsp than dst */ |
| |
| /* Regang is false unless we pass all conditions below */ |
| pDat->PortList[i].SelRegang = FALSE; |
| pDat->PortList[i+1].SelRegang = FALSE; |
| |
| if ((pDat->PortList[i].Type != PORTLIST_TYPE_CPU) || (pDat->PortList[i+1].Type != PORTLIST_TYPE_CPU)) |
| continue; /* Only process CPU to CPU links */ |
| |
| for (j = i+2; j < pDat->TotalLinks*2; j += 2) |
| { |
| if ((pDat->PortList[j].Type != PORTLIST_TYPE_CPU) || (pDat->PortList[j+1].Type != PORTLIST_TYPE_CPU)) |
| continue; /* Only process CPU to CPU links */ |
| |
| if (pDat->PortList[i].NodeID != pDat->PortList[j].NodeID) |
| continue; /* Links must be from the same source */ |
| |
| if (pDat->PortList[i+1].NodeID != pDat->PortList[j+1].NodeID) |
| continue; /* Link must be to the same target */ |
| |
| if ((pDat->PortList[i].Link & 3) != (pDat->PortList[j].Link & 3)) |
| continue; /* Ensure same source base port */ |
| |
| if ((pDat->PortList[i+1].Link & 3) != (pDat->PortList[j+1].Link & 3)) |
| continue; /* Ensure same destination base port */ |
| |
| if ((pDat->PortList[i].Link & 4) != (pDat->PortList[i+1].Link & 4)) |
| continue; /* Ensure sublink0 routes to sublink0 */ |
| |
| ASSERT((pDat->PortList[j].Link & 4) == (pDat->PortList[j+1].Link & 4)); /* (therefore sublink1 routes to sublink1) */ |
| |
| if (pDat->HtBlock->AMD_CB_SkipRegang && |
| pDat->HtBlock->AMD_CB_SkipRegang(pDat->PortList[i].NodeID, |
| pDat->PortList[i].Link & 0x03, |
| pDat->PortList[i+1].NodeID, |
| pDat->PortList[i+1].Link & 0x03)) |
| { |
| continue; /* Skip regang */ |
| } |
| |
| |
| pDat->PortList[i].Link &= 0x03; /* Force to point to sublink0 */ |
| pDat->PortList[i+1].Link &= 0x03; |
| pDat->PortList[i].SelRegang = TRUE; /* Enable link reganging */ |
| pDat->PortList[i+1].SelRegang = TRUE; |
| pDat->PortList[i].PrvWidthOutCap = HT_WIDTH_16_BITS; |
| pDat->PortList[i+1].PrvWidthOutCap = HT_WIDTH_16_BITS; |
| pDat->PortList[i].PrvWidthInCap = HT_WIDTH_16_BITS; |
| pDat->PortList[i+1].PrvWidthInCap = HT_WIDTH_16_BITS; |
| |
| /* Delete PortList[j, j+1], slow but easy to debug implementation */ |
| pDat->TotalLinks--; |
| Amdmemcpy(&(pDat->PortList[j]), &(pDat->PortList[j+2]), sizeof(sPortDescriptor)*(pDat->TotalLinks*2-j)); |
| Amdmemset(&(pDat->PortList[pDat->TotalLinks*2]), INVALID_LINK, sizeof(sPortDescriptor)*2); |
| |
| /* //High performance, but would make debuging harder due to 'shuffling' of the records */ |
| /* //Amdmemcpy(PortList[TotalPorts-2], PortList[j], SIZEOF(sPortDescriptor)*2); */ |
| /* //TotalPorts -=2; */ |
| |
| break; /* Exit loop, advance to PortList[i+2] */ |
| } |
| } |
| #endif /* HT_BUILD_NC_ONLY */ |
| } |
| |
| static void detectIoLinkIsochronousCapable(sMainData *pDat) |
| { |
| uint8_t i; |
| unsigned char iommu; |
| uint8_t isochronous_capable = 0; |
| |
| iommu = 1; |
| get_option(&iommu, "iommu"); |
| |
| for (i = 0; i < pDat->TotalLinks*2; i += 2) { |
| if ((pDat->PortList[i].Type == PORTLIST_TYPE_CPU) && (pDat->PortList[i+1].Type == PORTLIST_TYPE_IO)) { |
| if ((pDat->PortList[i].PrvFeatureCap & 0x1) && (pDat->PortList[i+1].PrvFeatureCap & 0x1)) { |
| pDat->PortList[i].enable_isochronous_mode = 1; |
| pDat->PortList[i+1].enable_isochronous_mode = 1; |
| isochronous_capable = 1; |
| } else { |
| pDat->PortList[i].enable_isochronous_mode = 0; |
| pDat->PortList[i+1].enable_isochronous_mode = 0; |
| } |
| } |
| } |
| |
| if (isochronous_capable && iommu) { |
| printk(BIOS_DEBUG, "Forcing HT links to isochronous mode due to enabled IOMMU\n"); |
| /* Isochronous mode must be set on all links if the IOMMU is enabled */ |
| for (i = 0; i < pDat->TotalLinks*2; i += 2) { |
| pDat->PortList[i].enable_isochronous_mode = 1; |
| pDat->PortList[i+1].enable_isochronous_mode = 1; |
| } |
| } |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * selectOptimalWidthAndFrequency(sMainData *pDat) |
| * |
| * Description: |
| * For all links: |
| * Examine both sides of a link and determine the optimal frequency and width, |
| * taking into account externally provided limits and enforcing any other limit |
| * or matching rules as applicable except sublink balancing. Update the port |
| * list date with the optimal settings. |
| * Note no hardware state changes in this routine. |
| * |
| * Parameters: |
| * @param[in,out] sMainData* pDat = our global state, port list data |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void selectOptimalWidthAndFrequency(sMainData *pDat) |
| { |
| u8 i, j; |
| uint32_t temp; |
| uint32_t cbPCBFreqLimit; |
| uint32_t cbPCBFreqLimit_NVRAM; |
| u8 cbPCBABDownstreamWidth; |
| u8 cbPCBBAUpstreamWidth; |
| |
| cbPCBFreqLimit_NVRAM = 0xfffff; |
| if (get_option(&temp, "hypertransport_speed_limit") == CB_SUCCESS) |
| cbPCBFreqLimit_NVRAM = ht_speed_limit[temp & 0xf]; |
| |
| if (!is_fam15h()) { |
| /* FIXME |
| * By default limit frequency to 2.6 GHz as there are residual |
| * problems with HT v3.1 implementation on at least some Socket G34 |
| * mainboards / Fam10h CPUs. |
| * Debug the issues and reenable this... |
| */ |
| if (cbPCBFreqLimit_NVRAM > 0xffff) |
| cbPCBFreqLimit_NVRAM = 0xffff; |
| } |
| |
| for (i = 0; i < pDat->TotalLinks*2; i += 2) |
| { |
| cbPCBFreqLimit = 0xfffff; // Maximum allowed by autoconfiguration |
| if (pDat->HtBlock->ht_link_configuration) |
| cbPCBFreqLimit = ht_speed_mhz_to_hw(pDat->HtBlock->ht_link_configuration->ht_speed_limit); |
| cbPCBFreqLimit = min(cbPCBFreqLimit, cbPCBFreqLimit_NVRAM); |
| |
| #if IS_ENABLED(CONFIG_LIMIT_HT_DOWN_WIDTH_8) |
| cbPCBABDownstreamWidth = 8; |
| #else |
| cbPCBABDownstreamWidth = 16; |
| #endif |
| |
| #if IS_ENABLED(CONFIG_LIMIT_HT_UP_WIDTH_8) |
| cbPCBBAUpstreamWidth = 8; |
| #else |
| cbPCBBAUpstreamWidth = 16; |
| #endif |
| |
| if ((pDat->PortList[i].Type == PORTLIST_TYPE_CPU) && (pDat->PortList[i+1].Type == PORTLIST_TYPE_CPU)) |
| { |
| if (pDat->HtBlock->AMD_CB_Cpu2CpuPCBLimits) |
| { |
| pDat->HtBlock->AMD_CB_Cpu2CpuPCBLimits( |
| pDat->PortList[i].NodeID, |
| pDat->PortList[i].Link, |
| pDat->PortList[i+1].NodeID, |
| pDat->PortList[i+1].Link, |
| &cbPCBABDownstreamWidth, |
| &cbPCBBAUpstreamWidth, &cbPCBFreqLimit |
| ); |
| } |
| } |
| else |
| { |
| if (pDat->HtBlock->AMD_CB_IOPCBLimits) |
| { |
| pDat->HtBlock->AMD_CB_IOPCBLimits( |
| pDat->PortList[i+1].NodeID, |
| pDat->PortList[i+1].HostLink, |
| pDat->PortList[i+1].HostDepth, |
| &cbPCBABDownstreamWidth, |
| &cbPCBBAUpstreamWidth, &cbPCBFreqLimit |
| ); |
| } |
| } |
| |
| temp = pDat->PortList[i].PrvFrequencyCap; |
| temp &= pDat->PortList[i+1].PrvFrequencyCap; |
| temp &= cbPCBFreqLimit; |
| pDat->PortList[i].CompositeFrequencyCap = temp; |
| pDat->PortList[i+1].CompositeFrequencyCap = temp; |
| |
| ASSERT (temp != 0); |
| for (j = 19;; j--) |
| { |
| if ((j == 16) || (j == 15)) |
| continue; |
| if (temp & ((uint32_t)1 << j)) |
| break; |
| } |
| |
| pDat->PortList[i].SelFrequency = j; |
| pDat->PortList[i+1].SelFrequency = j; |
| |
| temp = pDat->PortList[i].PrvWidthOutCap; |
| if (pDat->PortList[i+1].PrvWidthInCap < temp) |
| temp = pDat->PortList[i+1].PrvWidthInCap; |
| if (cbPCBABDownstreamWidth < temp) |
| temp = cbPCBABDownstreamWidth; |
| pDat->PortList[i].SelWidthOut = (u8)temp; |
| pDat->PortList[i+1].SelWidthIn = (u8)temp; |
| |
| temp = pDat->PortList[i].PrvWidthInCap; |
| if (pDat->PortList[i+1].PrvWidthOutCap < temp) |
| temp = pDat->PortList[i+1].PrvWidthOutCap; |
| if (cbPCBBAUpstreamWidth < temp) |
| temp = cbPCBBAUpstreamWidth; |
| pDat->PortList[i].SelWidthIn = (u8)temp; |
| pDat->PortList[i+1].SelWidthOut = (u8)temp; |
| } |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * hammerSublinkFixup(sMainData *pDat) |
| * |
| * Description: |
| * Iterate through all links, checking the frequency of each sublink pair. Make the |
| * adjustment to the port list data so that the frequencies are at a valid ratio, |
| * reducing frequency as needed to achieve this. (All links support the minimum 200 MHz |
| * frequency.) Repeat the above until no adjustments are needed. |
| * Note no hardware state changes in this routine. |
| * |
| * Parameters: |
| * @param[in,out] sMainData* pDat = our global state, link state and port list |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void hammerSublinkFixup(sMainData *pDat) |
| { |
| #ifndef HT_BUILD_NC_ONLY |
| u8 i, j, k; |
| BOOL changes, downgrade; |
| |
| u8 hiIndex; |
| u8 hiFreq, loFreq; |
| |
| u32 temp; |
| |
| do |
| { |
| changes = FALSE; |
| for (i = 0; i < pDat->TotalLinks*2; i++) |
| { |
| if (pDat->PortList[i].Type != PORTLIST_TYPE_CPU) /* Must be a CPU link */ |
| continue; |
| if (pDat->PortList[i].Link < 4) /* Only look for sublink1's */ |
| continue; |
| |
| for (j = 0; j < pDat->TotalLinks*2; j++) |
| { |
| /* Step 1. Find the matching sublink0 */ |
| if (pDat->PortList[j].Type != PORTLIST_TYPE_CPU) |
| continue; |
| if (pDat->PortList[j].NodeID != pDat->PortList[i].NodeID) |
| continue; |
| if (pDat->PortList[j].Link != (pDat->PortList[i].Link & 0x03)) |
| continue; |
| |
| /* Step 2. Check for an illegal frequency ratio */ |
| if (pDat->PortList[i].SelFrequency >= pDat->PortList[j].SelFrequency) |
| { |
| hiIndex = i; |
| hiFreq = pDat->PortList[i].SelFrequency; |
| loFreq = pDat->PortList[j].SelFrequency; |
| } |
| else |
| { |
| hiIndex = j; |
| hiFreq = pDat->PortList[j].SelFrequency; |
| loFreq = pDat->PortList[i].SelFrequency; |
| } |
| |
| if (hiFreq == loFreq) |
| break; /* The frequencies are 1:1, no need to do anything */ |
| |
| downgrade = FALSE; |
| |
| if (hiFreq == 13) |
| { |
| if ((loFreq != 7) && /* {13, 7} 2400MHz / 1200MHz 2:1 */ |
| (loFreq != 4) && /* {13, 4} 2400MHz / 600MHz 4:1 */ |
| (loFreq != 2)) /* {13, 2} 2400MHz / 400MHz 6:1 */ |
| downgrade = TRUE; |
| } |
| else if (hiFreq == 11) |
| { |
| if ((loFreq != 6)) /* {11, 6} 2000MHz / 1000MHz 2:1 */ |
| downgrade = TRUE; |
| } |
| else if (hiFreq == 9) |
| { |
| if ((loFreq != 5) && /* { 9, 5} 1600MHz / 800MHz 2:1 */ |
| (loFreq != 2) && /* { 9, 2} 1600MHz / 400MHz 4:1 */ |
| (loFreq != 0)) /* { 9, 0} 1600MHz / 200MHz 8:1 */ |
| downgrade = TRUE; |
| } |
| else if (hiFreq == 7) |
| { |
| if ((loFreq != 4) && /* { 7, 4} 1200MHz / 600MHz 2:1 */ |
| (loFreq != 0)) /* { 7, 0} 1200MHz / 200MHz 6:1 */ |
| downgrade = TRUE; |
| } |
| else if (hiFreq == 5) |
| { |
| if ((loFreq != 2) && /* { 5, 2} 800MHz / 400MHz 2:1 */ |
| (loFreq != 0)) /* { 5, 0} 800MHz / 200MHz 4:1 */ |
| downgrade = TRUE; |
| } |
| else if (hiFreq == 2) |
| { |
| if ((loFreq != 0)) /* { 2, 0} 400MHz / 200MHz 2:1 */ |
| downgrade = TRUE; |
| } |
| else |
| { |
| downgrade = TRUE; /* no legal ratios for hiFreq */ |
| } |
| |
| /* Step 3. Downgrade the higher of the two frequencies, and set nochanges to FALSE */ |
| if (downgrade) |
| { |
| /* Although the problem was with the port specified by hiIndex, we need to */ |
| /* downgrade both ends of the link. */ |
| hiIndex = hiIndex & 0xFE; /* Select the 'upstream' (i.e. even) port */ |
| |
| temp = pDat->PortList[hiIndex].CompositeFrequencyCap; |
| |
| /* Remove hiFreq from the list of valid frequencies */ |
| temp = temp & ~((uint32)1 << hiFreq); |
| ASSERT (temp != 0); |
| pDat->PortList[hiIndex].CompositeFrequencyCap = temp; |
| pDat->PortList[hiIndex+1].CompositeFrequencyCap = temp; |
| |
| for (k = 19;; k--) |
| { |
| if ((j == 16) || (j == 15)) |
| continue; |
| if (temp & ((uint32_t)1 << k)) |
| break; |
| } |
| |
| pDat->PortList[hiIndex].SelFrequency = k; |
| pDat->PortList[hiIndex+1].SelFrequency = k; |
| |
| changes = TRUE; |
| } |
| } |
| } |
| } while (changes); /* Repeat until a valid configuration is reached */ |
| #endif /* HT_BUILD_NC_ONLY */ |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * linkOptimization(sMainData *pDat) |
| * |
| * Description: |
| * Based on link capabilities, apply optimization rules to come up with the real best |
| * settings, including several external limit decision from call backs. This includes |
| * handling of sublinks. Finally, after the port list data is updated, set the hardware |
| * state for all links. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void linkOptimization(sMainData *pDat) |
| { |
| pDat->nb->gatherLinkData(pDat, pDat->nb); |
| regangLinks(pDat); |
| if (is_fam15h()) |
| detectIoLinkIsochronousCapable(pDat); |
| selectOptimalWidthAndFrequency(pDat); |
| hammerSublinkFixup(pDat); |
| pDat->nb->setLinkData(pDat, pDat->nb); |
| } |
| |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * trafficDistribution(sMainData *pDat) |
| * |
| * Description: |
| * In the case of a two node system with both sublinks used, enable the traffic |
| * distribution feature. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state, port list data |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void trafficDistribution(sMainData *pDat) |
| { |
| #ifndef HT_BUILD_NC_ONLY |
| u32 links01, links10; |
| u8 linkCount; |
| u8 i; |
| |
| /* Traffic Distribution is only used when there are exactly two nodes in the system */ |
| if (pDat->NodesDiscovered+1 != 2) |
| return; |
| |
| links01 = 0; |
| links10 = 0; |
| linkCount = 0; |
| for (i = 0; i < pDat->TotalLinks*2; i += 2) |
| { |
| if ((pDat->PortList[i].Type == PORTLIST_TYPE_CPU) && (pDat->PortList[i+1].Type == PORTLIST_TYPE_CPU)) |
| { |
| links01 |= (u32)1 << pDat->PortList[i].Link; |
| links10 |= (u32)1 << pDat->PortList[i+1].Link; |
| linkCount++; |
| } |
| } |
| ASSERT(linkCount != 0); |
| if (linkCount == 1) |
| return; /* Don't setup Traffic Distribution if only one link is being used */ |
| |
| pDat->nb->writeTrafficDistribution(links01, links10, pDat->nb); |
| #endif /* HT_BUILD_NC_ONLY */ |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * tuning(sMainData *pDat) |
| * |
| * Description: |
| * Handle system and performance tunings, such as traffic distribution, fifo and |
| * buffer tuning, and special config tunings. |
| * |
| * Parameters: |
| * @param[in] sMainData* pDat = our global state, port list data |
| * --------------------------------------------------------------------------------------- |
| */ |
| static void tuning(sMainData *pDat) |
| { |
| u8 i; |
| |
| /* See if traffic distribution can be done and do it if so |
| * or allow system specific customization |
| */ |
| if ((pDat->HtBlock->AMD_CB_CustomizeTrafficDistribution == NULL) |
| || !pDat->HtBlock->AMD_CB_CustomizeTrafficDistribution()) |
| { |
| trafficDistribution(pDat); |
| } |
| |
| /* For each node, invoke northbridge specific buffer tunings or |
| * system specific customizations. |
| */ |
| for (i = 0; i < pDat->NodesDiscovered + 1; i++) |
| { |
| if ((pDat->HtBlock->AMD_CB_CustomizeBuffers == NULL) |
| || !pDat->HtBlock->AMD_CB_CustomizeBuffers(i)) |
| { |
| pDat->nb->bufferOptimizations(i, pDat, pDat->nb); |
| } |
| } |
| } |
| |
| /*---------------------------------------------------------------------------------------- |
| * BOOL |
| * isSanityCheckOk() |
| * |
| * Description: |
| * Perform any general sanity checks which should prevent HT from running if they fail. |
| * Currently only the "Must run on BSP only" check. |
| * |
| * Parameters: |
| * @param[out] result BOOL = true if check is ok, false if it failed |
| * --------------------------------------------------------------------------------------- |
| */ |
| static BOOL isSanityCheckOk(void) |
| { |
| uint64 qValue; |
| |
| AmdMSRRead(LAPIC_BASE_MSR, &qValue); |
| |
| return ((qValue.lo & LAPIC_BASE_MSR_BOOTSTRAP_PROCESSOR) != 0); |
| } |
| |
| /*************************************************************************** |
| *** HT Initialize *** |
| ***************************************************************************/ |
| |
| /*---------------------------------------------------------------------------------------- |
| * void |
| * htInitialize(AMD_HTBLOCK *pBlock) |
| * |
| * Description: |
| * This is the top level external interface for Hypertransport Initialization. |
| * Create our initial internal state, initialize the coherent fabric, |
| * initialize the non-coherent chains, and perform any required fabric tuning or |
| * optimization. |
| * |
| * Parameters: |
| * @param[in] AMD_HTBLOCK* pBlock = Our Initial State including possible |
| * topologies and routings, non coherent bus |
| * assignment info, and actual |
| * wrapper or OEM call back routines. |
| * --------------------------------------------------------------------------------------- |
| */ |
| void amdHtInitialize(AMD_HTBLOCK *pBlock) |
| { |
| sMainData pDat; |
| cNorthBridge nb; |
| |
| if (isSanityCheckOk()) |
| { |
| newNorthBridge(0, &nb); |
| |
| pDat.HtBlock = pBlock; |
| pDat.nb = &nb; |
| pDat.sysMpCap = nb.maxNodes; |
| nb.isCapable(0, &pDat, pDat.nb); |
| coherentInit(&pDat); |
| |
| pDat.AutoBusCurrent = pBlock->AutoBusStart; |
| pDat.UsedCfgMapEntires = 0; |
| ncInit(&pDat); |
| linkOptimization(&pDat); |
| tuning(&pDat); |
| } |
| } |