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/*
* Copyright 2016 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 __AMDGPU_XGMI_H__
#define __AMDGPU_XGMI_H__
#include <drm/task_barrier.h>
#include "amdgpu_psp.h"
struct amdgpu_hive_info {
uint64_t hive_id;
struct list_head device_list;
int number_devices;
struct mutex hive_lock, reset_lock;
struct kobject *kobj;
struct device_attribute dev_attr;
struct amdgpu_device *adev;
int pstate; /*0 -- low , 1 -- high , -1 unknown*/
struct task_barrier tb;
};
struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev, int lock);
int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev);
int amdgpu_xgmi_add_device(struct amdgpu_device *adev);
void amdgpu_xgmi_remove_device(struct amdgpu_device *adev);
int amdgpu_xgmi_set_pstate(struct amdgpu_device *adev, int pstate);
int amdgpu_xgmi_get_hops_count(struct amdgpu_device *adev,
struct amdgpu_device *peer_adev);
int amdgpu_xgmi_ras_late_init(struct amdgpu_device *adev);
void amdgpu_xgmi_ras_fini(struct amdgpu_device *adev);
static inline bool amdgpu_xgmi_same_hive(struct amdgpu_device *adev,
struct amdgpu_device *bo_adev)
{
return (adev != bo_adev &&
adev->gmc.xgmi.hive_id &&
adev->gmc.xgmi.hive_id == bo_adev->gmc.xgmi.hive_id);
}
#endif
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