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/*
* 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.
*
*/
#ifndef __AMDGPU_IDS_H__
#define __AMDGPU_IDS_H__
#include <linux/types.h>
#include <linux/mutex.h>
#include <linux/list.h>
#include <linux/dma-fence.h>
#include "amdgpu_sync.h"
/* maximum number of VMIDs */
#define AMDGPU_NUM_VMID 16
struct amdgpu_device;
struct amdgpu_vm;
struct amdgpu_ring;
struct amdgpu_sync;
struct amdgpu_job;
struct amdgpu_vmid {
struct list_head list;
struct amdgpu_sync active;
struct dma_fence *last_flush;
uint64_t owner;
uint64_t pd_gpu_addr;
/* last flushed PD/PT update */
uint64_t flushed_updates;
uint32_t current_gpu_reset_count;
uint32_t gds_base;
uint32_t gds_size;
uint32_t gws_base;
uint32_t gws_size;
uint32_t oa_base;
uint32_t oa_size;
unsigned pasid;
struct dma_fence *pasid_mapping;
};
struct amdgpu_vmid_mgr {
struct rwlock lock;
unsigned num_ids;
struct list_head ids_lru;
struct amdgpu_vmid ids[AMDGPU_NUM_VMID];
struct amdgpu_vmid *reserved;
unsigned int reserved_use_count;
};
int amdgpu_pasid_alloc(unsigned int bits);
void amdgpu_pasid_free(u32 pasid);
void amdgpu_pasid_free_delayed(struct dma_resv *resv,
u32 pasid);
bool amdgpu_vmid_had_gpu_reset(struct amdgpu_device *adev,
struct amdgpu_vmid *id);
int amdgpu_vmid_alloc_reserved(struct amdgpu_device *adev,
unsigned vmhub);
void amdgpu_vmid_free_reserved(struct amdgpu_device *adev,
unsigned vmhub);
int amdgpu_vmid_grab(struct amdgpu_vm *vm, struct amdgpu_ring *ring,
struct amdgpu_job *job, struct dma_fence **fence);
void amdgpu_vmid_reset(struct amdgpu_device *adev, unsigned vmhub,
unsigned vmid);
void amdgpu_vmid_reset_all(struct amdgpu_device *adev);
void amdgpu_vmid_mgr_init(struct amdgpu_device *adev);
void amdgpu_vmid_mgr_fini(struct amdgpu_device *adev);
#endif
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