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1/*2 * Copyright 2014 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 */22 23#include "kfd_priv.h"24#include "kfd_events.h"25#include "cik_int.h"26#include "amdgpu_amdkfd.h"27#include "kfd_smi_events.h"28 29static bool cik_event_interrupt_isr(struct kfd_node *dev,30 const uint32_t *ih_ring_entry,31 uint32_t *patched_ihre,32 bool *patched_flag)33{34 const struct cik_ih_ring_entry *ihre =35 (const struct cik_ih_ring_entry *)ih_ring_entry;36 const struct kfd2kgd_calls *f2g = dev->kfd2kgd;37 unsigned int vmid;38 uint16_t pasid;39 bool ret;40 41 /* This workaround is due to HW/FW limitation on Hawaii that42 * VMID and PASID are not written into ih_ring_entry43 */44 if ((ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||45 ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) &&46 dev->adev->asic_type == CHIP_HAWAII) {47 struct cik_ih_ring_entry *tmp_ihre =48 (struct cik_ih_ring_entry *)patched_ihre;49 50 *patched_flag = true;51 *tmp_ihre = *ihre;52 53 vmid = f2g->read_vmid_from_vmfault_reg(dev->adev);54 ret = f2g->get_atc_vmid_pasid_mapping_info(dev->adev, vmid, &pasid);55 56 tmp_ihre->ring_id &= 0x000000ff;57 tmp_ihre->ring_id |= vmid << 8;58 tmp_ihre->ring_id |= pasid << 16;59 60 return ret && (pasid != 0) &&61 vmid >= dev->vm_info.first_vmid_kfd &&62 vmid <= dev->vm_info.last_vmid_kfd;63 }64 65 /* Only handle interrupts from KFD VMIDs */66 vmid = (ihre->ring_id & 0x0000ff00) >> 8;67 if (vmid < dev->vm_info.first_vmid_kfd ||68 vmid > dev->vm_info.last_vmid_kfd)69 return false;70 71 /* If there is no valid PASID, it's likely a firmware bug */72 pasid = (ihre->ring_id & 0xffff0000) >> 16;73 if (WARN_ONCE(pasid == 0, "FW bug: No PASID in KFD interrupt"))74 return false;75 76 /* Interrupt types we care about: various signals and faults.77 * They will be forwarded to a work queue (see below).78 */79 return ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE ||80 ihre->source_id == CIK_INTSRC_SDMA_TRAP ||81 ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG ||82 ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE ||83 ((ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||84 ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) &&85 !amdgpu_no_queue_eviction_on_vm_fault);86}87 88static void cik_event_interrupt_wq(struct kfd_node *dev,89 const uint32_t *ih_ring_entry)90{91 const struct cik_ih_ring_entry *ihre =92 (const struct cik_ih_ring_entry *)ih_ring_entry;93 uint32_t context_id = ihre->data & 0xfffffff;94 unsigned int vmid = (ihre->ring_id & 0x0000ff00) >> 8;95 u32 pasid = (ihre->ring_id & 0xffff0000) >> 16;96 97 if (pasid == 0)98 return;99 100 if (ihre->source_id == CIK_INTSRC_CP_END_OF_PIPE)101 kfd_signal_event_interrupt(pasid, context_id, 28);102 else if (ihre->source_id == CIK_INTSRC_SDMA_TRAP)103 kfd_signal_event_interrupt(pasid, context_id, 28);104 else if (ihre->source_id == CIK_INTSRC_SQ_INTERRUPT_MSG)105 kfd_signal_event_interrupt(pasid, context_id & 0xff, 8);106 else if (ihre->source_id == CIK_INTSRC_CP_BAD_OPCODE)107 kfd_signal_hw_exception_event(pasid);108 else if (ihre->source_id == CIK_INTSRC_GFX_PAGE_INV_FAULT ||109 ihre->source_id == CIK_INTSRC_GFX_MEM_PROT_FAULT) {110 struct kfd_vm_fault_info info;111 112 kfd_smi_event_update_vmfault(dev, pasid);113 kfd_dqm_evict_pasid(dev->dqm, pasid);114 115 memset(&info, 0, sizeof(info));116 amdgpu_amdkfd_gpuvm_get_vm_fault_info(dev->adev, &info);117 if (!info.page_addr && !info.status)118 return;119 120 if (info.vmid == vmid)121 kfd_signal_vm_fault_event(dev, pasid, &info, NULL);122 else123 kfd_signal_vm_fault_event(dev, pasid, NULL, NULL);124 }125}126 127const struct kfd_event_interrupt_class event_interrupt_class_cik = {128 .interrupt_isr = cik_event_interrupt_isr,129 .interrupt_wq = cik_event_interrupt_wq,130};131