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
76
77
78
79
80
81
82
83
84
85
86
|
/* Copyright 2013-2014 IBM Corp.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
* implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <skiboot.h>
#include <cec.h>
#include <p7ioc.h>
#include <interrupts.h>
#include <opal-api.h>
/*
* Note: This file os only used on P7/P7+
*/
#define MAX_IO_HUBS 0x80
static struct io_hub *cec_iohubs[MAX_IO_HUBS];
struct io_hub *cec_get_hub_by_id(uint32_t hub_id)
{
if (hub_id >= MAX_IO_HUBS)
return NULL;
return cec_iohubs[hub_id];
}
void cec_register(struct io_hub *hub)
{
assert(hub->hub_id < MAX_IO_HUBS);
cec_iohubs[hub->hub_id] = hub;
}
void cec_reset(void)
{
unsigned int i;
/* Reset IO Hubs */
for (i = 0; i < MAX_IO_HUBS; i++) {
if (!cec_iohubs[i] || !cec_iohubs[i]->ops->reset)
continue;
cec_iohubs[i]->ops->reset(cec_iohubs[i]);
}
}
/* This was only supported by p5ioc, which was dropped */
static int64_t opal_pci_set_hub_tce_memory(uint64_t hub_id,
uint64_t tce_mem_addr __unused,
uint64_t tce_mem_size __unused)
{
struct io_hub *hub = cec_get_hub_by_id(hub_id);
if (!hub)
return OPAL_PARAMETER;
return OPAL_UNSUPPORTED;
}
opal_call(OPAL_PCI_SET_HUB_TCE_MEMORY, opal_pci_set_hub_tce_memory, 3);
static int64_t opal_pci_get_hub_diag_data(uint64_t hub_id,
void *diag_buffer,
uint64_t diag_buffer_len)
{
struct io_hub *hub = cec_get_hub_by_id(hub_id);
if (!opal_addr_valid(diag_buffer))
return OPAL_PARAMETER;
if (!hub)
return OPAL_PARAMETER;
if (!hub->ops->get_diag_data)
return OPAL_UNSUPPORTED;
return hub->ops->get_diag_data(hub, diag_buffer, diag_buffer_len);
}
opal_call(OPAL_PCI_GET_HUB_DIAG_DATA, opal_pci_get_hub_diag_data, 3);
|
