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/* SPDX-License-Identifier: GPL-2.0-only */
#include <console/console.h>
#include <commonlib/stdlib.h>
#include <device/device.h>
#include <device/pci_ops.h>
#include <device/pci.h>
#include <device/pciexp.h>
#include <soc/numa.h>
#include <soc/soc_util.h>
#include <soc/util.h>
#include <types.h>
void dump_pds(void)
{
printk(BIOS_DEBUG, "====== Proximity Domain Dump ======\n");
printk(BIOS_DEBUG, "number of proximity domains: %d\n", pds.num_pds);
for (uint8_t i = 0; i < pds.num_pds; i++) {
printk(BIOS_DEBUG, "\tproximity domain %d:\n", i);
printk(BIOS_DEBUG, "\t\ttype:%d\n", pds.pds[i].pd_type);
printk(BIOS_DEBUG, "\t\tsocket_bitmap:0x%x\n", pds.pds[i].socket_bitmap);
printk(BIOS_DEBUG, "\t\tdevice_handle:0x%x\n", pds.pds[i].device_handle);
printk(BIOS_DEBUG, "\t\tbase(64MB):0x%x\n", pds.pds[i].base);
printk(BIOS_DEBUG, "\t\tsize(64MB):0x%x\n", pds.pds[i].size);
}
}
enum cb_err fill_pds(void)
{
uint8_t num_sockets = soc_get_num_cpus();
uint8_t num_cxlnodes = get_cxl_node_count();
/*
* Rules/assumptions:
* 1. Each processor has a processor proximity domain regardless whether
* a processor has DIMM attached to it or not.
* 2. All system memory map elements are either from processor attached memory,
* or from CXL memory. Each CXL node info entry has a corresponding entry
* in system memory map elements.
* 3. Each CXL device may have multiple HDMs (Host-managed Device Memory). Each
* HDM has one and only one CXL node info entry. Each CXL node info entry
* represents a generic initiator proximity domain.
*/
pds.num_pds = num_cxlnodes + num_sockets;
pds.pds = xmalloc(sizeof(struct proximity_domain) * pds.num_pds);
if (!pds.pds)
die("%s %s out of memory.", __FILE__, __LINE__);
memset(pds.pds, 0, sizeof(struct proximity_domain) * pds.num_pds);
/* Fill in processor domains */
uint8_t i, j;
struct device *dev;
for (i = 0; i < num_sockets; i++) {
pds.pds[i].pd_type = PD_TYPE_PROCESSOR;
pds.pds[i].socket_bitmap = 1 << i;
pds.pds[i].distances = malloc(sizeof(uint8_t) * pds.num_pds);
if (!pds.pds[i].distances)
die("%s %s out of memory.", __FILE__, __LINE__);
/* hard code the distances for now, till we know how to calculate them. */
for (j = 0; j < pds.num_pds; j++) {
if (j == i)
pds.pds[i].distances[j] = 0x0a;
else
pds.pds[i].distances[j] = 0x0e;
}
}
/* If there are no CXL nodes, we are done */
if (num_cxlnodes == 0)
return CB_SUCCESS;
/* There are CXL nodes, fill in generic initiator domain after the processors pds */
uint8_t skt_id, cxl_id;
const CXL_NODE_SOCKET *cxl_hob = get_cxl_node();
for (skt_id = 0, i = num_sockets; skt_id < MAX_SOCKET; skt_id++, i++) {
for (cxl_id = 0; cxl_id < cxl_hob[skt_id].CxlNodeCount; ++cxl_id) {
const CXL_NODE_INFO node = cxl_hob[skt_id].CxlNodeInfo[cxl_id];
pds.pds[i].pd_type = PD_TYPE_GENERIC_INITIATOR;
pds.pds[i].socket_bitmap = node.SocketBitmap;
pds.pds[i].base = node.Address;
pds.pds[i].size = node.Size;
dev = pcie_find_dsn(node.SerialNumber, node.VendorId, 0);
pds.pds[i].device_handle = PCI_BDF(dev);
pds.pds[i].distances = malloc(sizeof(uint8_t) * pds.num_pds);
if (!pds.pds[i].distances)
die("%s %s out of memory.", __FILE__, __LINE__);
/* hard code the distances until we know how to calculate them */
for (j = 0; j < pds.num_pds; j++) {
if (j == i)
pds.pds[i].distances[j] = 0x0a;
else
pds.pds[i].distances[j] = 0x0e;
}
}
}
return CB_SUCCESS;
}
/*
* Return the total size of memory regions in generic initiator affinity domains.
* The size is in unit of 64MB.
*/
uint32_t get_generic_initiator_mem_size(void)
{
uint8_t i;
uint32_t size = 0;
for (i = 0; i < pds.num_pds; i++) {
if (pds.pds[i].pd_type == PD_TYPE_PROCESSOR)
continue;
size += pds.pds[i].size;
}
return size;
}
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