86 lines
2.7 KiB
C
86 lines
2.7 KiB
C
|
/*
|
||
|
|
* Copyright 2014 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 ((INT_MAX >> 1) + 1)
|
||
|
|
#define KFD_LAST_NONSIGNAL_EVENT_ID INT_MAX
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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 ((uint64_t)-1)
|
||
|
|
|
||
|
|
struct kfd_event_waiter;
|
||
|
|
struct signal_page;
|
||
|
|
|
||
|
|
struct kfd_event {
|
||
|
|
u32 event_id;
|
||
|
|
|
||
|
|
bool signaled;
|
||
|
|
bool auto_reset;
|
||
|
|
|
||
|
|
int type;
|
||
|
|
|
||
|
|
wait_queue_head_t wq; /* List of event waiters. */
|
||
|
|
|
||
|
|
/* Only for signal events. */
|
||
|
|
uint64_t __user *user_signal_address;
|
||
|
|
|
||
|
|
/* type specific data */
|
||
|
|
union {
|
||
|
|
struct kfd_hsa_memory_exception_data memory_exception_data;
|
||
|
|
struct kfd_hsa_hw_exception_data hw_exception_data;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
#define KFD_EVENT_TIMEOUT_IMMEDIATE 0
|
||
|
|
#define KFD_EVENT_TIMEOUT_INFINITE 0xFFFFFFFFu
|
||
|
|
|
||
|
|
/* Matching HSA_EVENTTYPE */
|
||
|
|
#define KFD_EVENT_TYPE_SIGNAL 0
|
||
|
|
#define KFD_EVENT_TYPE_HW_EXCEPTION 3
|
||
|
|
#define KFD_EVENT_TYPE_DEBUG 5
|
||
|
|
#define KFD_EVENT_TYPE_MEMORY 8
|
||
|
|
|
||
|
|
extern void kfd_signal_event_interrupt(unsigned int pasid, uint32_t partial_id,
|
||
|
|
uint32_t valid_id_bits);
|
||
|
|
|
||
|
|
#endif
|