Release 4.18 drivers/gpu/drm/amd/amdkfd/cik_event_interrupt.c
/*
* 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)
{
const struct cik_ih_ring_entry *ihre =
(const struct cik_ih_ring_entry *)ih_ring_entry;
unsigned int vmid, pasid;
/* 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 0;
/* 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 0;
/* 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;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Lewycky | 56 | 45.53% | 1 | 25.00% |
| Felix Kuehling | 55 | 44.72% | 1 | 25.00% |
| Besar Wicaksono | 6 | 4.88% | 1 | 25.00% |
| Alexey Skidanov | 6 | 4.88% | 1 | 25.00% |
| Total | 123 | 100.00% | 4 | 100.00% |
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;
uint32_t context_id = ihre->data & 0xfffffff;
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);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Lewycky | 86 | 65.65% | 1 | 25.00% |
| Besar Wicaksono | 16 | 12.21% | 1 | 25.00% |
| Felix Kuehling | 15 | 11.45% | 1 | 25.00% |
| Alexey Skidanov | 14 | 10.69% | 1 | 25.00% |
| Total | 131 | 100.00% | 4 | 100.00% |
const struct kfd_event_interrupt_class event_interrupt_class_cik = {
.interrupt_isr = cik_event_interrupt_isr,
.interrupt_wq = cik_event_interrupt_wq,
};
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| Andrew Lewycky | 169 | 60.14% | 1 | 20.00% |
| Felix Kuehling | 70 | 24.91% | 2 | 40.00% |
| Besar Wicaksono | 22 | 7.83% | 1 | 20.00% |
| Alexey Skidanov | 20 | 7.12% | 1 | 20.00% |
| Total | 281 | 100.00% | 5 | 100.00% |
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