drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c

   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
  33         source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
  34         client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
  35         pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
  36         vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
  37
  38         if (pasid) {
  39                 const uint32_t *data = ih_ring_entry;
  40
  41                 pr_debug("client id 0x%x, source id %d, pasid 0x%x. raw data:\n",
  42                          client_id, source_id, pasid);
  43                 pr_debug("%8X, %8X, %8X, %8X, %8X, %8X, %8X, %8X.\n",
  44                          data[0], data[1], data[2], data[3],
  45                          data[4], data[5], data[6], data[7]);
  46         }
  47
  48         return (pasid != 0) &&
  49                 (source_id == SOC15_INTSRC_CP_END_OF_PIPE ||
  50                  source_id == SOC15_INTSRC_SDMA_TRAP ||
  51                  source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG ||
  52                  source_id == SOC15_INTSRC_CP_BAD_OPCODE);
  53 }
  54
  55 static void event_interrupt_wq_v9(struct kfd_dev *dev,
  56                                         const uint32_t *ih_ring_entry)
  57 {
  58         uint16_t source_id, client_id, pasid, vmid;
  59         uint32_t context_id;
  60
  61         source_id = SOC15_SOURCE_ID_FROM_IH_ENTRY(ih_ring_entry);
  62         client_id = SOC15_CLIENT_ID_FROM_IH_ENTRY(ih_ring_entry);
  63         pasid = SOC15_PASID_FROM_IH_ENTRY(ih_ring_entry);
  64         vmid = SOC15_VMID_FROM_IH_ENTRY(ih_ring_entry);
  65         context_id = SOC15_CONTEXT_ID0_FROM_IH_ENTRY(ih_ring_entry);
  66
  67         if (source_id == SOC15_INTSRC_CP_END_OF_PIPE)
  68                 kfd_signal_event_interrupt(pasid, context_id, 32);
  69         else if (source_id == SOC15_INTSRC_SDMA_TRAP)
  70                 kfd_signal_event_interrupt(pasid, context_id & 0xfffffff, 28);
  71         else if (source_id == SOC15_INTSRC_SQ_INTERRUPT_MSG)
  72                 kfd_signal_event_interrupt(pasid, context_id & 0xffffff, 24);
  73         else if (source_id == SOC15_INTSRC_CP_BAD_OPCODE)
  74                 kfd_signal_hw_exception_event(pasid);
  75         else if (client_id == SOC15_IH_CLIENTID_VMC ||
  76                  client_id == SOC15_IH_CLIENTID_UTCL2) {
  77                 /* TODO */
  78         }
  79 }
  80
  81 const struct kfd_event_interrupt_class event_interrupt_class_v9 = {
  82         .interrupt_isr = event_interrupt_isr_v9,
  83         .interrupt_wq = event_interrupt_wq_v9,
  84 };