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