bda438b8ba
The PF driver will need to know size of the remaining available VRAM to estimate fair VRAM allocations that could be used across all VFs in automatic VFs provisioning mode. Add helper function for that. We will use it in upcoming patch. Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com> Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240415173937.1287-4-michal.wajdeczko@intel.com
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2022 Intel Corporation
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*/
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#ifndef _XE_TTM_VRAM_MGR_H_
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#define _XE_TTM_VRAM_MGR_H_
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#include "xe_ttm_vram_mgr_types.h"
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enum dma_data_direction;
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struct xe_device;
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struct xe_tile;
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int __xe_ttm_vram_mgr_init(struct xe_device *xe, struct xe_ttm_vram_mgr *mgr,
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u32 mem_type, u64 size, u64 io_size,
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u64 default_page_size);
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int xe_ttm_vram_mgr_init(struct xe_tile *tile, struct xe_ttm_vram_mgr *mgr);
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int xe_ttm_vram_mgr_alloc_sgt(struct xe_device *xe,
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struct ttm_resource *res,
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u64 offset, u64 length,
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struct device *dev,
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enum dma_data_direction dir,
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struct sg_table **sgt);
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void xe_ttm_vram_mgr_free_sgt(struct device *dev, enum dma_data_direction dir,
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struct sg_table *sgt);
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u64 xe_ttm_vram_get_avail(struct ttm_resource_manager *man);
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u64 xe_ttm_vram_get_cpu_visible_size(struct ttm_resource_manager *man);
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void xe_ttm_vram_get_used(struct ttm_resource_manager *man,
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u64 *used, u64 *used_visible);
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static inline struct xe_ttm_vram_mgr_resource *
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to_xe_ttm_vram_mgr_resource(struct ttm_resource *res)
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{
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return container_of(res, struct xe_ttm_vram_mgr_resource, base);
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}
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static inline struct xe_ttm_vram_mgr *
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to_xe_ttm_vram_mgr(struct ttm_resource_manager *man)
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{
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return container_of(man, struct xe_ttm_vram_mgr, manager);
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}
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#endif
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