Commit | Line | Data |
---|---|---|
f3a39818 AL |
1 | /* |
2 | * Copyright 2014 Advanced Micro Devices, Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include "kfd_priv.h" | |
24 | #include "kfd_events.h" | |
25 | #include "cik_int.h" | |
26 | ||
27 | static bool cik_event_interrupt_isr(struct kfd_dev *dev, | |
28 | const uint32_t *ih_ring_entry) | |
29 | { | |
30 | unsigned int pasid; | |
31 | const struct cik_ih_ring_entry *ihre = | |
32 | (const struct cik_ih_ring_entry *)ih_ring_entry; | |
33 | ||
34 | pasid = (ihre->ring_id & 0xffff0000) >> 16; | |
35 | ||
36 | /* Do not process in ISR, just request it to be forwarded to WQ. */ | |
37 | return (pasid != 0) && | |
38 | (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE || | |
930c5ff4 AS |
39 | ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG || |
40 | ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE); | |
f3a39818 AL |
41 | } |
42 | ||
43 | static void cik_event_interrupt_wq(struct kfd_dev *dev, | |
44 | const uint32_t *ih_ring_entry) | |
45 | { | |
46 | unsigned int pasid; | |
47 | const struct cik_ih_ring_entry *ihre = | |
48 | (const struct cik_ih_ring_entry *)ih_ring_entry; | |
49 | ||
50 | pasid = (ihre->ring_id & 0xffff0000) >> 16; | |
51 | ||
52 | if (pasid == 0) | |
53 | return; | |
54 | ||
55 | if (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE) | |
56 | kfd_signal_event_interrupt(pasid, 0, 0); | |
57 | else if (ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG) | |
58 | kfd_signal_event_interrupt(pasid, ihre->data & 0xFF, 8); | |
930c5ff4 AS |
59 | else if (ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE) |
60 | kfd_signal_hw_exception_event(pasid); | |
f3a39818 AL |
61 | } |
62 | ||
63 | const struct kfd_event_interrupt_class event_interrupt_class_cik = { | |
64 | .interrupt_isr = cik_event_interrupt_isr, | |
65 | .interrupt_wq = cik_event_interrupt_wq, | |
66 | }; |