1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/* SPDX-License-Identifier: GPL-2.0-or-later */
#include <assert.h>
#include <intelblocks/acpi.h>
#include <soc/pci_devs.h>
#include <soc/util.h>
#include <string.h>
acpi_cstate_t *soc_get_cstate_map(size_t *entries)
{
*entries = 0;
return NULL;
}
static void print_madt_ioapic(int socket, int stack,
int ioapic_id, uint32_t ioapic_base, int gsi_base)
{
printk(BIOS_DEBUG, "Adding MADT IOAPIC for socket: %d, stack: %d, ioapic_id: 0x%x, "
"ioapic_base: 0x%x, gsi_base: 0x%x\n",
socket, stack, ioapic_id, ioapic_base, gsi_base);
return;
}
const struct madt_ioapic_info *soc_get_ioapic_info(size_t *entries)
{
int cur_index;
const IIO_UDS *hob = get_iio_uds();
/* With XEON-SP FSP, PCH IOAPIC is allocated with first 120 GSIs. */
#if (CONFIG(SOC_INTEL_COOPERLAKE_SP))
const int gsi_bases[] = { 0, 0x78, 0x80, 0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0 };
#endif
#if (CONFIG(SOC_INTEL_SKYLAKE_SP))
const int gsi_bases[] = { 0, 0x18, 0x20, 0x28, 0x30, 0x48, 0x50, 0x58, 0x60 };
#endif
static struct madt_ioapic_info madt_tbl[ARRAY_SIZE(gsi_bases)];
cur_index = 0;
madt_tbl[cur_index].id = PCH_IOAPIC_ID;
madt_tbl[cur_index].addr = hob->PlatformData.IIO_resource[0].StackRes[0].IoApicBase;
madt_tbl[cur_index].gsi_base = gsi_bases[cur_index];
print_madt_ioapic(0, 0, madt_tbl[cur_index].id,
madt_tbl[cur_index].addr, madt_tbl[cur_index].gsi_base);
++cur_index;
for (int socket = 0; socket < hob->PlatformData.numofIIO; ++socket) {
for (int stack = 0; stack < MAX_IIO_STACK; ++stack) {
const STACK_RES *ri =
&hob->PlatformData.IIO_resource[socket].StackRes[stack];
if (!is_iio_stack_res(ri))
continue;
assert(cur_index < ARRAY_SIZE(gsi_bases));
madt_tbl[cur_index].id = soc_get_iio_ioapicid(socket, stack);
madt_tbl[cur_index].gsi_base = gsi_bases[cur_index];
madt_tbl[cur_index].addr = ri->IoApicBase;
/*
* Stack 0 has non-PCH IOAPIC and PCH IOAPIC.
* The IIO IOAPIC is placed at 0x1000 from the reported base.
*/
if (stack == 0 && socket == 0)
madt_tbl[cur_index].addr += 0x1000;
print_madt_ioapic(socket, stack, madt_tbl[cur_index].id,
madt_tbl[cur_index].addr,
madt_tbl[cur_index].gsi_base);
++cur_index;
}
}
*entries = cur_index;
return madt_tbl;
}
|
