forked from Minki/linux
e5eaa7cc0c
An upcoming change in the hmm_range_register API requires passing in a pointer to an hmm_mirror instead of mm_struct. To access the hmm_mirror we need pass bo instead of ttm to amdgpu_ttm_tt_get_user_pages because mirror is part of amdgpu_mn structure, which is accessible from bo. v2: fix building without CONFIG_HMM_MIRROR (Arnd) Signed-off-by: Philip Yang <Philip.Yang@amd.com> Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
100 lines
3.1 KiB
C
100 lines
3.1 KiB
C
/*
|
|
* Copyright 2017 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.
|
|
*
|
|
* Authors: Christian König
|
|
*/
|
|
#ifndef __AMDGPU_MN_H__
|
|
#define __AMDGPU_MN_H__
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/hmm.h>
|
|
#include <linux/rwsem.h>
|
|
#include <linux/workqueue.h>
|
|
#include <linux/interval_tree.h>
|
|
|
|
enum amdgpu_mn_type {
|
|
AMDGPU_MN_TYPE_GFX,
|
|
AMDGPU_MN_TYPE_HSA,
|
|
};
|
|
|
|
/**
|
|
* struct amdgpu_mn
|
|
*
|
|
* @adev: amdgpu device pointer
|
|
* @mm: process address space
|
|
* @type: type of MMU notifier
|
|
* @work: destruction work item
|
|
* @node: hash table node to find structure by adev and mn
|
|
* @lock: rw semaphore protecting the notifier nodes
|
|
* @objects: interval tree containing amdgpu_mn_nodes
|
|
* @mirror: HMM mirror function support
|
|
*
|
|
* Data for each amdgpu device and process address space.
|
|
*/
|
|
struct amdgpu_mn {
|
|
/* constant after initialisation */
|
|
struct amdgpu_device *adev;
|
|
struct mm_struct *mm;
|
|
enum amdgpu_mn_type type;
|
|
|
|
/* only used on destruction */
|
|
struct work_struct work;
|
|
|
|
/* protected by adev->mn_lock */
|
|
struct hlist_node node;
|
|
|
|
/* objects protected by lock */
|
|
struct rw_semaphore lock;
|
|
struct rb_root_cached objects;
|
|
|
|
#ifdef CONFIG_HMM_MIRROR
|
|
/* HMM mirror */
|
|
struct hmm_mirror mirror;
|
|
#endif
|
|
};
|
|
|
|
#if defined(CONFIG_HMM_MIRROR)
|
|
void amdgpu_mn_lock(struct amdgpu_mn *mn);
|
|
void amdgpu_mn_unlock(struct amdgpu_mn *mn);
|
|
struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
|
|
enum amdgpu_mn_type type);
|
|
int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr);
|
|
void amdgpu_mn_unregister(struct amdgpu_bo *bo);
|
|
void amdgpu_hmm_init_range(struct hmm_range *range);
|
|
#else
|
|
static inline void amdgpu_mn_lock(struct amdgpu_mn *mn) {}
|
|
static inline void amdgpu_mn_unlock(struct amdgpu_mn *mn) {}
|
|
static inline struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,
|
|
enum amdgpu_mn_type type)
|
|
{
|
|
return NULL;
|
|
}
|
|
static inline int amdgpu_mn_register(struct amdgpu_bo *bo, unsigned long addr)
|
|
{
|
|
DRM_WARN_ONCE("HMM_MIRROR kernel config option is not enabled, "
|
|
"add CONFIG_ZONE_DEVICE=y in config file to fix this\n");
|
|
return -ENODEV;
|
|
}
|
|
static inline void amdgpu_mn_unregister(struct amdgpu_bo *bo) {}
|
|
#endif
|
|
|
|
#endif
|