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There different types of BOs are supported: - shmem A user application uses shmem BOs as input/output for its workload running on NPU. - device memory heap The fixed size buffer dedicated to the device. - device buffer The buffer object allocated from device memory heap. - command buffer The buffer object created for delivering commands. The command buffer object is small and pinned on creation. New IOCTLs are added: CREATE_BO, GET_BO_INFO, SYNC_BO. SYNC_BO is used to explicitly flush CPU cache for BO memory. Co-developed-by: Min Ma <min.ma@amd.com> Signed-off-by: Min Ma <min.ma@amd.com> Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Signed-off-by: Lizhi Hou <lizhi.hou@amd.com> Signed-off-by: Jeffrey Hugo <quic_jhugo@quicinc.com> Link: https://patchwork.freedesktop.org/patch/msgid/20241118172942.2014541-7-lizhi.hou@amd.com
66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2024, Advanced Micro Devices, Inc.
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*/
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#ifndef _AMDXDNA_GEM_H_
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#define _AMDXDNA_GEM_H_
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struct amdxdna_mem {
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u64 userptr;
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void *kva;
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u64 dev_addr;
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size_t size;
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struct page **pages;
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u32 nr_pages;
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struct mmu_interval_notifier notifier;
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unsigned long *pfns;
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bool map_invalid;
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};
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struct amdxdna_gem_obj {
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struct drm_gem_shmem_object base;
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struct amdxdna_client *client;
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u8 type;
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bool pinned;
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struct mutex lock; /* Protects: pinned */
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struct amdxdna_mem mem;
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/* Below members is uninitialized when needed */
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struct drm_mm mm; /* For AMDXDNA_BO_DEV_HEAP */
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struct amdxdna_gem_obj *dev_heap; /* For AMDXDNA_BO_DEV */
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struct drm_mm_node mm_node; /* For AMDXDNA_BO_DEV */
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u32 assigned_hwctx;
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};
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#define to_gobj(obj) (&(obj)->base.base)
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static inline struct amdxdna_gem_obj *to_xdna_obj(struct drm_gem_object *gobj)
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{
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return container_of(gobj, struct amdxdna_gem_obj, base.base);
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}
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struct amdxdna_gem_obj *amdxdna_gem_get_obj(struct amdxdna_client *client,
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u32 bo_hdl, u8 bo_type);
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static inline void amdxdna_gem_put_obj(struct amdxdna_gem_obj *abo)
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{
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drm_gem_object_put(to_gobj(abo));
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}
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struct drm_gem_object *
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amdxdna_gem_create_object_cb(struct drm_device *dev, size_t size);
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struct amdxdna_gem_obj *
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amdxdna_drm_alloc_dev_bo(struct drm_device *dev,
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struct amdxdna_drm_create_bo *args,
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struct drm_file *filp, bool use_vmap);
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int amdxdna_gem_pin_nolock(struct amdxdna_gem_obj *abo);
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int amdxdna_gem_pin(struct amdxdna_gem_obj *abo);
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void amdxdna_gem_unpin(struct amdxdna_gem_obj *abo);
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int amdxdna_drm_create_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
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int amdxdna_drm_get_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
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int amdxdna_drm_sync_bo_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
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#endif /* _AMDXDNA_GEM_H_ */
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