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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 {
struct kobject kobj;
uint64_t hive_id;
struct list_head device_list;
struct list_head node;
atomic_t number_devices;
struct mutex hive_lock;
atomic_t in_reset;
int hi_req_count;
struct amdgpu_device *hi_req_gpu;
struct task_barrier tb;
enum {
AMDGPU_XGMI_PSTATE_MIN,
AMDGPU_XGMI_PSTATE_MAX_VEGA20,
AMDGPU_XGMI_PSTATE_UNKNOWN
} pstate;
};
struct amdgpu_pcs_ras_field {
const char *err_name;
uint32_t pcs_err_mask;
uint32_t pcs_err_shift;
};
extern const struct amdgpu_xgmi_ras_funcs xgmi_ras_funcs;
struct amdgpu_hive_info *amdgpu_get_xgmi_hive(struct amdgpu_device *adev);
void amdgpu_put_xgmi_hive(struct amdgpu_hive_info *hive);
int amdgpu_xgmi_update_topology(struct amdgpu_hive_info *hive, struct amdgpu_device *adev);
int amdgpu_xgmi_add_device(struct amdgpu_device *adev);
int 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_get_num_links(struct amdgpu_device *adev,
struct amdgpu_device *peer_adev);
uint64_t amdgpu_xgmi_get_relative_phy_addr(struct amdgpu_device *adev,
uint64_t addr);
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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