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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* Copyright 2014 Advanced Micro Devices, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#include "kfd_priv.h"
#include "kfd_events.h"
#include "cik_int.h"
#include "amdgpu_amdkfd.h"
#include "kfd_smi_events.h"
static bool cik_event_interrupt_isr(struct kfd_dev *dev,
const uint32_t *ih_ring_entry,
uint32_t *patched_ihre,
bool *patched_flag)
{
const struct cik_ih_ring_entry *ihre =
(const struct cik_ih_ring_entry *)ih_ring_entry;
const struct kfd2kgd_calls *f2g = dev->kfd2kgd;
unsigned int vmid;
uint16_t pasid;
bool ret;
/* This workaround is due to HW/FW limitation on Hawaii that
* VMID and PASID are not written into ih_ring_entry
*/
if ((ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||
ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) &&
dev->adev->asic_type == CHIP_HAWAII) {
struct cik_ih_ring_entry *tmp_ihre =
(struct cik_ih_ring_entry *)patched_ihre;
*patched_flag = true;
*tmp_ihre = *ihre;
vmid = f2g->read_vmid_from_vmfault_reg(dev->adev);
ret = f2g->get_atc_vmid_pasid_mapping_info(dev->adev, vmid, &pasid);
tmp_ihre->ring_id &= 0x000000ff;
tmp_ihre->ring_id |= vmid << 8;
tmp_ihre->ring_id |= pasid << 16;
return ret && (pasid != 0) &&
vmid >= dev->vm_info.first_vmid_kfd &&
vmid <= dev->vm_info.last_vmid_kfd;
}
/* Only handle interrupts from KFD VMIDs */
vmid = (ihre->ring_id & 0x0000ff00) >> 8;
if (vmid < dev->vm_info.first_vmid_kfd ||
vmid > dev->vm_info.last_vmid_kfd)
return false;
/* If there is no valid PASID, it's likely a firmware bug */
pasid = (ihre->ring_id & 0xffff0000) >> 16;
if (WARN_ONCE(pasid == 0, "FW bug: No PASID in KFD interrupt"))
return false;
/* Interrupt types we care about: various signals and faults.
* They will be forwarded to a work queue (see below).
*/
return ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE ||
ihre->source_id == CIK_INTSRC_SDMA_TRAP ||
ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG ||
ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE ||
((ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||
ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) &&
!amdgpu_no_queue_eviction_on_vm_fault);
}
static void cik_event_interrupt_wq(struct kfd_dev *dev,
const uint32_t *ih_ring_entry)
{
const struct cik_ih_ring_entry *ihre =
(const struct cik_ih_ring_entry *)ih_ring_entry;
uint32_t context_id = ihre->data & 0xfffffff;
unsigned int vmid = (ihre->ring_id & 0x0000ff00) >> 8;
u32 pasid = (ihre->ring_id & 0xffff0000) >> 16;
if (pasid == 0)
return;
if (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE)
kfd_signal_event_interrupt(pasid, context_id, 28);
else if (ihre->source_id == CIK_INTSRC_SDMA_TRAP)
kfd_signal_event_interrupt(pasid, context_id, 28);
else if (ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG)
kfd_signal_event_interrupt(pasid, context_id & 0xff, 8);
else if (ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE)
kfd_signal_hw_exception_event(pasid);
else if (ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||
ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) {
struct kfd_vm_fault_info info;
kfd_smi_event_update_vmfault(dev, pasid);
kfd_process_vm_fault(dev->dqm, pasid);
memset(&info, 0, sizeof(info));
amdgpu_amdkfd_gpuvm_get_vm_fault_info(dev->adev, &info);
if (!info.page_addr && !info.status)
return;
if (info.vmid == vmid)
kfd_signal_vm_fault_event(dev, pasid, &info);
else
kfd_signal_vm_fault_event(dev, pasid, NULL);
}
}
const struct kfd_event_interrupt_class event_interrupt_class_cik = {
.interrupt_isr = cik_event_interrupt_isr,
.interrupt_wq = cik_event_interrupt_wq,
};
|
