| /* |
| * 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" |
| |
| static bool cik_event_interrupt_isr(struct kfd_dev *dev, |
| const uint32_t *ih_ring_entry) |
| { |
| unsigned int pasid; |
| const struct cik_ih_ring_entry *ihre = |
| (const struct cik_ih_ring_entry *)ih_ring_entry; |
| |
| pasid = (ihre->ring_id & 0xffff0000) >> 16; |
| |
| /* Do not process in ISR, just request it to be forwarded to WQ. */ |
| return (pasid != 0) && |
| (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE || |
| ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG || |
| ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE); |
| } |
| |
| static void cik_event_interrupt_wq(struct kfd_dev *dev, |
| const uint32_t *ih_ring_entry) |
| { |
| unsigned int pasid; |
| const struct cik_ih_ring_entry *ihre = |
| (const struct cik_ih_ring_entry *)ih_ring_entry; |
| |
| 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, 0, 0); |
| else if (ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG) |
| kfd_signal_event_interrupt(pasid, ihre->data & 0xFF, 8); |
| else if (ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE) |
| kfd_signal_hw_exception_event(pasid); |
| } |
| |
| const struct kfd_event_interrupt_class event_interrupt_class_cik = { |
| .interrupt_isr = cik_event_interrupt_isr, |
| .interrupt_wq = cik_event_interrupt_wq, |
| }; |