blob: 9ad09f4c4be82d9c4d51ff952aa20bb03dbf24cd [file] [log] [blame]
Jonathan Zhang15fc4592023-01-25 11:33:16 -08001/* SPDX-License-Identifier: GPL-2.0-only */
2
3#include <assert.h>
4#include <device/device.h>
5#include <device/pci.h>
6#include <hob_cxlnode.h>
7#include <intelblocks/cpulib.h>
Jonathan Zhang15fc4592023-01-25 11:33:16 -08008#include <soc/msr.h>
9#include <soc/numa.h>
10#include <soc/pci_devs.h>
11#include <soc/soc_util.h>
12#include <soc/util.h>
Johnny Lina0b199c2023-01-30 20:44:05 +080013#include <pc80/mc146818rtc.h>
Jonathan Zhang15fc4592023-01-25 11:33:16 -080014
15const EWL_PRIVATE_DATA *get_ewl_hob(void)
16{
17 size_t hob_size;
18 static const EWL_PRIVATE_DATA *hob;
19 const uint8_t ewl_id_hob_guid[16] = FSP_HOB_EWLID_GUID;
20
21 if (hob != NULL)
22 return hob;
23
24 hob = fsp_find_extension_hob_by_guid(ewl_id_hob_guid, &hob_size);
25 assert(hob != NULL && hob_size != 0);
26 return hob;
27}
28
29const SYSTEM_INFO_VAR *get_system_info_hob(void)
30{
31 size_t hob_size;
32 static const SYSTEM_INFO_VAR *hob;
33 const uint8_t system_info_hob_guid[16] = FSP_HOB_SYSTEMINFO_GUID;
34
35 if (hob != NULL)
36 return hob;
37
38 hob = fsp_find_extension_hob_by_guid(system_info_hob_guid, &hob_size);
39 assert(hob != NULL && hob_size != 0);
40 return hob;
41}
42
43const struct SystemMemoryMapHob *get_system_memory_map(void)
44{
45 size_t hob_size;
46 const uint8_t mem_hob_guid[16] = FSP_SYSTEM_MEMORYMAP_HOB_GUID;
47 const struct SystemMemoryMapHob **memmap_addr;
48
49 memmap_addr = (const struct SystemMemoryMapHob **)fsp_find_extension_hob_by_guid(
50 mem_hob_guid, &hob_size);
51 /* hob_size is the size of the 8-byte address not the hob data */
52 assert(memmap_addr != NULL && hob_size != 0);
53 /* assert the pointer to the hob is not NULL */
54 assert(*memmap_addr != NULL);
55
56 return *memmap_addr;
57}
58
59const struct SystemMemoryMapElement *get_system_memory_map_elment(uint8_t *num)
60{
61 const struct SystemMemoryMapHob *hob = get_system_memory_map();
62 if (!hob)
63 return NULL;
64
65 *num = hob->numberEntries;
66 return hob->Element;
67}
68
Arthur Heymans550f55e2022-08-24 14:44:26 +020069bool is_pcie_iio_stack_res(const STACK_RES *res)
70{
71 return res->Personality == TYPE_UBOX_IIO;
72}
73
Patrick Rudolph15672592024-01-18 07:57:07 +010074bool is_ubox_stack_res(const STACK_RES *res)
75{
76 return res->Personality == TYPE_UBOX;
77}
78
Shuo Liu08f1f052024-01-20 02:52:17 +080079bool is_ioat_iio_stack_res(const STACK_RES *res)
80{
81 return res->Personality == TYPE_DINO;
82}
83
Jonathan Zhang15fc4592023-01-25 11:33:16 -080084/*
85 * Given a stack resource, figure out whether the corresponding stack has
86 * CXL device.
87 * It goes through pds (proximity domains) structure to see if there is any
88 * generic initiator has device with bus # falls between bus base and
89 * bus limit.
90 */
91bool is_iio_cxl_stack_res(const STACK_RES *res)
92{
93 for (uint8_t i = 0; i < pds.num_pds; i++) {
94 if (pds.pds[i].pd_type == PD_TYPE_PROCESSOR)
95 continue;
96
Patrick Rudolphf25d58c2024-01-31 11:31:55 +010097 uint32_t bus = PCI_BDF(pds.pds[i].dev) >> 20;
Jonathan Zhang15fc4592023-01-25 11:33:16 -080098 if (bus >= res->BusBase && bus <= res->BusLimit)
99 return true;
100 }
101
102 return false;
103}
104
105const CXL_NODE_SOCKET *get_cxl_node(void)
106{
107 size_t hob_size;
108 static const CXL_NODE_SOCKET *hob;
109 static bool hob_check = 0;
110 const uint8_t fsp_hob_cxl_node_socket_guid[16] = FSP_HOB_CXLNODE_GUID;
111
112 if (hob_check == 1)
113 return hob;
114
115 hob = fsp_find_extension_hob_by_guid(fsp_hob_cxl_node_socket_guid, &hob_size);
116 hob_check = 1;
117 if (hob == NULL || hob_size == 0)
118 printk(BIOS_DEBUG,
119 "FSP_HOB_CXLNODE_GUID not found: CXL may not be installed\n");
120 return hob;
121}
122
123uint8_t get_cxl_node_count(void)
124{
125 const CXL_NODE_SOCKET *hob = get_cxl_node();
126 uint8_t count = 0;
127
128 if (hob != NULL) {
129 for (uint8_t skt_id = 0; skt_id < MAX_SOCKET; skt_id++)
130 count += hob[skt_id].CxlNodeCount;
131 }
132
133 return count;
134}
135
Patrick Rudolph47e68822024-01-19 16:05:56 +0100136/* Returns the UBOX(offset) bus number for socket0 */
137uint8_t socket0_get_ubox_busno(uint8_t offset)
Jonathan Zhang15fc4592023-01-25 11:33:16 -0800138{
139 const IIO_UDS *hob = get_iio_uds();
140
Jonathan Zhang15fc4592023-01-25 11:33:16 -0800141 for (int stack = 0; stack < MAX_LOGIC_IIO_STACK; ++stack) {
Patrick Rudolph47e68822024-01-19 16:05:56 +0100142 if (hob->PlatformData.IIO_resource[0].StackRes[stack].Personality
Jonathan Zhang15fc4592023-01-25 11:33:16 -0800143 == TYPE_UBOX)
Patrick Rudolph47e68822024-01-19 16:05:56 +0100144 return (hob->PlatformData.IIO_resource[0].StackRes[stack].BusBase
Jonathan Zhang15fc4592023-01-25 11:33:16 -0800145 + offset);
146 }
147 die("Unable to locate UBOX BUS NO");
148}
149
Jonathan Zhang15fc4592023-01-25 11:33:16 -0800150void bios_done_msr(void *unused)
151{
152 msr_t msr = rdmsr(MSR_BIOS_DONE);
153 if (!(msr.lo & XEON_SP_ENABLE_IA_UNTRUSTED)) { /* if already locked skip update */
154 msr.lo |= XEON_SP_ENABLE_IA_UNTRUSTED;
155 wrmsr(MSR_BIOS_DONE, msr);
156 }
157}
Johnny Lina0b199c2023-01-30 20:44:05 +0800158
Johnny Lin3435f812023-01-17 10:43:19 +0800159void soc_set_mrc_cold_boot_flag(bool cold_boot_required)
Johnny Lina0b199c2023-01-30 20:44:05 +0800160{
161 uint8_t mrc_status = cmos_read(CMOS_OFFSET_MRC_STATUS);
162 uint8_t new_mrc_status = (mrc_status & 0xfe) | cold_boot_required;
163 printk(BIOS_SPEW, "MRC status: 0x%02x want 0x%02x\n", mrc_status, new_mrc_status);
164 if (new_mrc_status != mrc_status)
165 cmos_write(new_mrc_status, CMOS_OFFSET_MRC_STATUS);
Johnny Lina0b199c2023-01-30 20:44:05 +0800166}
Shuo Liua5bdf8e2024-02-20 01:06:10 +0800167
168bool is_memtype_reserved(uint16_t mem_type)
169{
170 return !!(mem_type & MEM_TYPE_RESERVED);
171}
172
173bool is_memtype_non_volatile(uint16_t mem_type)
174{
175 return !(mem_type & MEMTYPE_VOLATILE_MASK);
176}
177
178bool is_memtype_processor_attached(uint16_t mem_type)
179{
180 /*
181 * Refer to the definition of MEM_TYPE enum type in
182 * vendorcode/intel/fsp/fsp2_0/sapphirerapids_sp/MemoryMapDataHob.h,
183 * values less than MemTypeCxlAccVolatileMem represents
184 * processor attached memory
185 */
186 return (mem_type < MemTypeCxlAccVolatileMem);
187}