1 /* 2 * Copyright 2016-2018 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 "soc15_int.h" 26 #include "kfd_device_queue_manager.h" 27 #include "kfd_smi_events.h" 28 29 static bool event_interrupt_isr_v9(struct kfd_dev *dev, 30 const uint32_t *ih_ring_entry, 31 uint32_t *patched_ihre, 32 bool *patched_flag) 33 { 34 uint16_t source_id, client_id, pasid, vmid; 35 const uint32_t *data = ih_ring_entry; 36 37 /* Only handle interrupts from KFD VMIDs */ 38 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry); 39 if (vmid < dev->vm_info.first_vmid_kfd || 40 vmid > dev->vm_info.last_vmid_kfd) 41 return false; 42 43 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry); 44 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry); 45 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry); 46 47 /* Only handle clients we care about */ 48 if (client_id != SOC15_IH_CLIENTID_GRBM_CP && 49 client_id != SOC15_IH_CLIENTID_SDMA0 && 50 client_id != SOC15_IH_CLIENTID_SDMA1 && 51 client_id != SOC15_IH_CLIENTID_SDMA2 && 52 client_id != SOC15_IH_CLIENTID_SDMA3 && 53 client_id != SOC15_IH_CLIENTID_SDMA4 && 54 client_id != SOC15_IH_CLIENTID_SDMA5 && 55 client_id != SOC15_IH_CLIENTID_SDMA6 && 56 client_id != SOC15_IH_CLIENTID_SDMA7 && 57 client_id != SOC15_IH_CLIENTID_VMC && 58 client_id != SOC15_IH_CLIENTID_VMC1 && 59 client_id != SOC15_IH_CLIENTID_UTCL2 && 60 client_id != SOC15_IH_CLIENTID_SE0SH && 61 client_id != SOC15_IH_CLIENTID_SE1SH && 62 client_id != SOC15_IH_CLIENTID_SE2SH && 63 client_id != SOC15_IH_CLIENTID_SE3SH) 64 return false; 65 66 /* This is a known issue for gfx9. Under non HWS, pasid is not set 67 * in the interrupt payload, so we need to find out the pasid on our 68 * own. 69 */ 70 if (!pasid && dev->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) { 71 const uint32_t pasid_mask = 0xffff; 72 73 *patched_flag = true; 74 memcpy(patched_ihre, ih_ring_entry, 75 dev->device_info->ih_ring_entry_size); 76 77 pasid = dev->dqm->vmid_pasid[vmid]; 78 79 /* Patch the pasid field */ 80 patched_ihre[3] = cpu_to_le32((le32_to_cpu(patched_ihre[3]) 81 & ~pasid_mask) | pasid); 82 } 83 84 pr_debug("client id 0x%x, source id %d, vmid %d, pasid 0x%x. raw data:\n", 85 client_id, source_id, vmid, pasid); 86 pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n", 87 data[0], data[1], data[2], data[3], 88 data[4], data[5], data[6], data[7]); 89 90 /* If there is no valid PASID, it's likely a bug */ 91 if (WARN_ONCE(pasid == 0, "Bug: No PASID in KFD interrupt")) 92 return false; 93 94 /* Interrupt types we care about: various signals and faults. 95 * They will be forwarded to a work queue (see below). 96 */ 97 return source_id == SOC15_INTSRC_CP_END_OF_PIPE || 98 source_id == SOC15_INTSRC_SDMA_TRAP || 99 source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG || 100 source_id == SOC15_INTSRC_CP_BAD_OPCODE || 101 client_id == SOC15_IH_CLIENTID_VMC || 102 client_id == SOC15_IH_CLIENTID_VMC1 || 103 client_id == SOC15_IH_CLIENTID_UTCL2; 104 } 105 106 static void event_interrupt_wq_v9(struct kfd_dev *dev, 107 const uint32_t *ih_ring_entry) 108 { 109 uint16_t source_id, client_id, pasid, vmid; 110 uint32_t context_id; 111 112 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry); 113 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry); 114 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry); 115 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry); 116 context_id = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry); 117 118 if (client_id == SOC15_IH_CLIENTID_GRBM_CP || 119 client_id == SOC15_IH_CLIENTID_SE0SH || 120 client_id == SOC15_IH_CLIENTID_SE1SH || 121 client_id == SOC15_IH_CLIENTID_SE2SH || 122 client_id == SOC15_IH_CLIENTID_SE3SH) { 123 if (source_id == SOC15_INTSRC_CP_END_OF_PIPE) 124 kfd_signal_event_interrupt(pasid, context_id, 32); 125 else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG) 126 kfd_signal_event_interrupt(pasid, context_id & 0xffffff, 24); 127 else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE) 128 kfd_signal_hw_exception_event(pasid); 129 } else if (client_id == SOC15_IH_CLIENTID_SDMA0 || 130 client_id == SOC15_IH_CLIENTID_SDMA1 || 131 client_id == SOC15_IH_CLIENTID_SDMA2 || 132 client_id == SOC15_IH_CLIENTID_SDMA3 || 133 client_id == SOC15_IH_CLIENTID_SDMA4 || 134 client_id == SOC15_IH_CLIENTID_SDMA5 || 135 client_id == SOC15_IH_CLIENTID_SDMA6 || 136 client_id == SOC15_IH_CLIENTID_SDMA7) { 137 if (source_id == SOC15_INTSRC_SDMA_TRAP) 138 kfd_signal_event_interrupt(pasid, context_id & 0xfffffff, 28); 139 } else if (client_id == SOC15_IH_CLIENTID_VMC || 140 client_id == SOC15_IH_CLIENTID_VMC1 || 141 client_id == SOC15_IH_CLIENTID_UTCL2) { 142 struct kfd_vm_fault_info info = {0}; 143 uint16_t ring_id = SOC15_RING_ID_FROM_IH_ENTRY(ih_ring_entry); 144 145 info.vmid = vmid; 146 info.mc_id = client_id; 147 info.page_addr = ih_ring_entry[4] | 148 (uint64_t)(ih_ring_entry[5] & 0xf) << 32; 149 info.prot_valid = ring_id & 0x08; 150 info.prot_read = ring_id & 0x10; 151 info.prot_write = ring_id & 0x20; 152 153 kfd_smi_event_update_vmfault(dev, pasid); 154 kfd_process_vm_fault(dev->dqm, pasid); 155 kfd_signal_vm_fault_event(dev, pasid, &info); 156 } 157 } 158 159 const struct kfd_event_interrupt_class event_interrupt_class_v9 = { 160 .interrupt_isr = event_interrupt_isr_v9, 161 .interrupt_wq = event_interrupt_wq_v9, 162 }; 163