forked from Minki/linux
fcdfa432a5
In case CONFIG_HSA_AMD is not chosen, there is no need to compile amdkfd files that reside inside amdgpu dirver. In addition, because amdkfd depends on x86_64 architecture and amdgpu is not, compiling amdkfd files under i386 architecture can cause compiler errors and warnings. This patch modifies amdgpu's makefile to build amdkfd files only if CONFIG_HSA_AMD is chosen. The only file to be compiled unconditionally is amdgpu_amdkfd.c There are stub functions that are compiled only if amdkfd is not compiled. In that case, calls from amdgpu driver proper will go to those functions instead of the real functions. v2: instead of using function pointers, use stub functions v3: initialize kgd2kfd to NULL in case amdkfd is not compiled Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
190 lines
6.3 KiB
C
190 lines
6.3 KiB
C
/*
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* Copyright 2014 Advanced Micro Devices, Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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/* amdgpu_amdkfd.h defines the private interface between amdgpu and amdkfd. */
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#ifndef AMDGPU_AMDKFD_H_INCLUDED
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#define AMDGPU_AMDKFD_H_INCLUDED
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#include <linux/types.h>
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#include <linux/mm.h>
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#include <linux/mmu_context.h>
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#include <linux/workqueue.h>
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#include <kgd_kfd_interface.h>
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#include <drm/ttm/ttm_execbuf_util.h>
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#include "amdgpu_sync.h"
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#include "amdgpu_vm.h"
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extern const struct kgd2kfd_calls *kgd2kfd;
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struct amdgpu_device;
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struct kfd_bo_va_list {
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struct list_head bo_list;
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struct amdgpu_bo_va *bo_va;
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void *kgd_dev;
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bool is_mapped;
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uint64_t va;
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uint64_t pte_flags;
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};
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struct kgd_mem {
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struct mutex lock;
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struct amdgpu_bo *bo;
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struct list_head bo_va_list;
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/* protected by amdkfd_process_info.lock */
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struct ttm_validate_buffer validate_list;
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struct ttm_validate_buffer resv_list;
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uint32_t domain;
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unsigned int mapped_to_gpu_memory;
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uint64_t va;
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uint32_t mapping_flags;
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atomic_t invalid;
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struct amdkfd_process_info *process_info;
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struct page **user_pages;
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struct amdgpu_sync sync;
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bool aql_queue;
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};
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/* KFD Memory Eviction */
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struct amdgpu_amdkfd_fence {
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struct dma_fence base;
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struct mm_struct *mm;
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spinlock_t lock;
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char timeline_name[TASK_COMM_LEN];
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};
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struct amdgpu_amdkfd_fence *amdgpu_amdkfd_fence_create(u64 context,
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struct mm_struct *mm);
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bool amdkfd_fence_check_mm(struct dma_fence *f, struct mm_struct *mm);
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struct amdgpu_amdkfd_fence *to_amdgpu_amdkfd_fence(struct dma_fence *f);
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struct amdkfd_process_info {
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/* List head of all VMs that belong to a KFD process */
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struct list_head vm_list_head;
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/* List head for all KFD BOs that belong to a KFD process. */
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struct list_head kfd_bo_list;
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/* List of userptr BOs that are valid or invalid */
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struct list_head userptr_valid_list;
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struct list_head userptr_inval_list;
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/* Lock to protect kfd_bo_list */
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struct mutex lock;
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/* Number of VMs */
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unsigned int n_vms;
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/* Eviction Fence */
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struct amdgpu_amdkfd_fence *eviction_fence;
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/* MMU-notifier related fields */
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atomic_t evicted_bos;
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struct delayed_work restore_userptr_work;
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struct pid *pid;
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};
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int amdgpu_amdkfd_init(void);
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void amdgpu_amdkfd_fini(void);
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void amdgpu_amdkfd_suspend(struct amdgpu_device *adev);
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int amdgpu_amdkfd_resume(struct amdgpu_device *adev);
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void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
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const void *ih_ring_entry);
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void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev);
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void amdgpu_amdkfd_device_init(struct amdgpu_device *adev);
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void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev);
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int amdgpu_amdkfd_evict_userptr(struct kgd_mem *mem, struct mm_struct *mm);
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int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
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uint32_t vmid, uint64_t gpu_addr,
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uint32_t *ib_cmd, uint32_t ib_len);
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struct kfd2kgd_calls *amdgpu_amdkfd_gfx_7_get_functions(void);
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struct kfd2kgd_calls *amdgpu_amdkfd_gfx_8_0_get_functions(void);
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struct kfd2kgd_calls *amdgpu_amdkfd_gfx_9_0_get_functions(void);
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bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid);
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/* Shared API */
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int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
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void **mem_obj, uint64_t *gpu_addr,
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void **cpu_ptr);
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void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj);
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void get_local_mem_info(struct kgd_dev *kgd,
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struct kfd_local_mem_info *mem_info);
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uint64_t get_gpu_clock_counter(struct kgd_dev *kgd);
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uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd);
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void get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info);
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uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd);
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#define read_user_wptr(mmptr, wptr, dst) \
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({ \
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bool valid = false; \
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if ((mmptr) && (wptr)) { \
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if ((mmptr) == current->mm) { \
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valid = !get_user((dst), (wptr)); \
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} else if (current->mm == NULL) { \
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use_mm(mmptr); \
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valid = !get_user((dst), (wptr)); \
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unuse_mm(mmptr); \
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} \
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} \
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valid; \
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})
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/* GPUVM API */
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int amdgpu_amdkfd_gpuvm_create_process_vm(struct kgd_dev *kgd, void **vm,
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void **process_info,
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struct dma_fence **ef);
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int amdgpu_amdkfd_gpuvm_acquire_process_vm(struct kgd_dev *kgd,
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struct file *filp,
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void **vm, void **process_info,
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struct dma_fence **ef);
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void amdgpu_amdkfd_gpuvm_destroy_cb(struct amdgpu_device *adev,
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struct amdgpu_vm *vm);
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void amdgpu_amdkfd_gpuvm_destroy_process_vm(struct kgd_dev *kgd, void *vm);
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uint32_t amdgpu_amdkfd_gpuvm_get_process_page_dir(void *vm);
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int amdgpu_amdkfd_gpuvm_alloc_memory_of_gpu(
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struct kgd_dev *kgd, uint64_t va, uint64_t size,
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void *vm, struct kgd_mem **mem,
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uint64_t *offset, uint32_t flags);
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int amdgpu_amdkfd_gpuvm_free_memory_of_gpu(
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struct kgd_dev *kgd, struct kgd_mem *mem);
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int amdgpu_amdkfd_gpuvm_map_memory_to_gpu(
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struct kgd_dev *kgd, struct kgd_mem *mem, void *vm);
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int amdgpu_amdkfd_gpuvm_unmap_memory_from_gpu(
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struct kgd_dev *kgd, struct kgd_mem *mem, void *vm);
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int amdgpu_amdkfd_gpuvm_sync_memory(
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struct kgd_dev *kgd, struct kgd_mem *mem, bool intr);
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int amdgpu_amdkfd_gpuvm_map_gtt_bo_to_kernel(struct kgd_dev *kgd,
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struct kgd_mem *mem, void **kptr, uint64_t *size);
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int amdgpu_amdkfd_gpuvm_restore_process_bos(void *process_info,
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struct dma_fence **ef);
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void amdgpu_amdkfd_gpuvm_init_mem_limits(void);
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void amdgpu_amdkfd_unreserve_system_memory_limit(struct amdgpu_bo *bo);
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#endif /* AMDGPU_AMDKFD_H_INCLUDED */
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