/* SPDX-License-Identifier: GPL-2.0 OR MIT */ /* * Copyright 2014-2022 Advanced Micro Devices, Inc. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR * OTHER DEALINGS IN THE SOFTWARE. */ #ifndef KFD_EVENTS_H_INCLUDED #define KFD_EVENTS_H_INCLUDED #include <linux/kernel.h> #include <linux/hashtable.h> #include <linux/types.h> #include <linux/list.h> #include <linux/wait.h> #include "kfd_priv.h" #include <uapi/linux/kfd_ioctl.h> /* * IDR supports non-negative integer IDs. Small IDs are used for * signal events to match their signal slot. Use the upper half of the * ID space for non-signal events. */ #define KFD_FIRST_NONSIGNAL_EVENT_ID … #define KFD_LAST_NONSIGNAL_EVENT_ID … /* * Written into kfd_signal_slot_t to indicate that the event is not signaled. * Since the event protocol may need to write the event ID into memory, this * must not be a valid event ID. * For the sake of easy memset-ing, this must be a byte pattern. */ #define UNSIGNALED_EVENT_SLOT … struct kfd_event_waiter; struct signal_page; struct kfd_event { … }; #define KFD_EVENT_TIMEOUT_IMMEDIATE … #define KFD_EVENT_TIMEOUT_INFINITE … /* Matching HSA_EVENTTYPE */ #define KFD_EVENT_TYPE_SIGNAL … #define KFD_EVENT_TYPE_HW_EXCEPTION … #define KFD_EVENT_TYPE_DEBUG … #define KFD_EVENT_TYPE_MEMORY … extern void kfd_signal_event_interrupt(u32 pasid, uint32_t partial_id, uint32_t valid_id_bits); #endif
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