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 27 28 static bool event_interrupt_isr_v9(struct kfd_dev *dev, 29 const uint32_t *ih_ring_entry, 30 uint32_t *patched_ihre, 31 bool *patched_flag) 32 { 33 uint16_t source_id, client_id, pasid, vmid; 34 const uint32_t *data = ih_ring_entry; 35 36 /* Only handle interrupts from KFD VMIDs */ 37 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry); 38 if (vmid < dev->vm_info.first_vmid_kfd || 39 vmid > dev->vm_info.last_vmid_kfd) 40 return 0; 41 42 /* If there is no valid PASID, it's likely a firmware bug */ 43 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry); 44 if (WARN_ONCE(pasid == 0, "FW bug: No PASID in KFD interrupt")) 45 return 0; 46 47 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry); 48 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry); 49 50 pr_debug("client id 0x%x, source id %d, pasid 0x%x. raw data:\n", 51 client_id, source_id, pasid); 52 pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n", 53 data[0], data[1], data[2], data[3], 54 data[4], data[5], data[6], data[7]); 55 56 /* Interrupt types we care about: various signals and faults. 57 * They will be forwarded to a work queue (see below). 58 */ 59 return source_id == SOC15_INTSRC_CP_END_OF_PIPE || 60 source_id == SOC15_INTSRC_SDMA_TRAP || 61 source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG || 62 source_id == SOC15_INTSRC_CP_BAD_OPCODE || 63 client_id == SOC15_IH_CLIENTID_VMC || 64 client_id == SOC15_IH_CLIENTID_UTCL2; 65 } 66 67 static void event_interrupt_wq_v9(struct kfd_dev *dev, 68 const uint32_t *ih_ring_entry) 69 { 70 uint16_t source_id, client_id, pasid, vmid; 71 uint32_t context_id; 72 73 source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry); 74 client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry); 75 pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry); 76 vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry); 77 context_id = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry); 78 79 if (source_id == SOC15_INTSRC_CP_END_OF_PIPE) 80 kfd_signal_event_interrupt(pasid, context_id, 32); 81 else if (source_id == SOC15_INTSRC_SDMA_TRAP) 82 kfd_signal_event_interrupt(pasid, context_id & 0xfffffff, 28); 83 else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG) 84 kfd_signal_event_interrupt(pasid, context_id & 0xffffff, 24); 85 else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE) 86 kfd_signal_hw_exception_event(pasid); 87 else if (client_id == SOC15_IH_CLIENTID_VMC || 88 client_id == SOC15_IH_CLIENTID_UTCL2) { 89 struct kfd_vm_fault_info info = {0}; 90 uint16_t ring_id = SOC15_RING_ID_FROM_IH_ENTRY(ih_ring_entry); 91 92 info.vmid = vmid; 93 info.mc_id = client_id; 94 info.page_addr = ih_ring_entry[4] | 95 (uint64_t)(ih_ring_entry[5] & 0xf) << 32; 96 info.prot_valid = ring_id & 0x08; 97 info.prot_read = ring_id & 0x10; 98 info.prot_write = ring_id & 0x20; 99 100 kfd_process_vm_fault(dev->dqm, pasid); 101 kfd_signal_vm_fault_event(dev, pasid, &info); 102 } 103 } 104 105 const struct kfd_event_interrupt_class event_interrupt_class_v9 = { 106 .interrupt_isr = event_interrupt_isr_v9, 107 .interrupt_wq = event_interrupt_wq_v9, 108 }; 109