93 lines
3.5 KiB
C
93 lines
3.5 KiB
C
/*
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* Copyright 2016-2018 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "kfd_priv.h"
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#include "kfd_events.h"
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#include "soc15_int.h"
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static bool event_interrupt_isr_v9(struct kfd_dev *dev,
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const uint32_t *ih_ring_entry)
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{
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uint16_t source_id, client_id, pasid, vmid;
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const uint32_t *data = ih_ring_entry;
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/* Only handle interrupts from KFD VMIDs */
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vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
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if (vmid < dev->vm_info.first_vmid_kfd ||
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vmid > dev->vm_info.last_vmid_kfd)
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return 0;
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/* If there is no valid PASID, it's likely a firmware bug */
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pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
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if (WARN_ONCE(pasid == 0, "FW bug: No PASID in KFD interrupt"))
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return 0;
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source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
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client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
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pr_debug("client id 0x%x, source id %d, pasid 0x%x. raw data:\n",
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client_id, source_id, pasid);
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pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
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data[0], data[1], data[2], data[3],
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data[4], data[5], data[6], data[7]);
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/* Interrupt types we care about: various signals and faults.
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* They will be forwarded to a work queue (see below).
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*/
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return source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
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source_id == SOC15_INTSRC_SDMA_TRAP ||
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source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
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source_id == SOC15_INTSRC_CP_BAD_OPCODE;
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}
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static void event_interrupt_wq_v9(struct kfd_dev *dev,
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const uint32_t *ih_ring_entry)
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{
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uint16_t source_id, client_id, pasid, vmid;
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uint32_t context_id;
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source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
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client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
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pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
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vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
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context_id = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
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if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
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kfd_signal_event_interrupt(pasid, context_id, 32);
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else if (source_id == SOC15_INTSRC_SDMA_TRAP)
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kfd_signal_event_interrupt(pasid, context_id & 0xfffffff, 28);
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else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG)
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kfd_signal_event_interrupt(pasid, context_id & 0xffffff, 24);
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else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE)
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kfd_signal_hw_exception_event(pasid);
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else if (client_id == SOC15_IH_CLIENTID_VMC ||
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client_id == SOC15_IH_CLIENTID_UTCL2) {
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/* TODO */
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}
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}
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const struct kfd_event_interrupt_class event_interrupt_class_v9 = {
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.interrupt_isr = event_interrupt_isr_v9,
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.interrupt_wq = event_interrupt_wq_v9,
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};
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