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dca2701a62
An upcoming change will use GuC buffer cache as a place where GuC migration data will be stored, and the memory requirement for that is larger than indirect data. Allow the caller to pass the size based on the intended usecase. Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Link: https://patch.msgid.link/20251112132220.516975-12-michal.winiarski@intel.com Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
50 lines
1.6 KiB
C
50 lines
1.6 KiB
C
/* SPDX-License-Identifier: MIT */
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/*
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* Copyright © 2024 Intel Corporation
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*/
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#ifndef _XE_GUC_BUF_H_
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#define _XE_GUC_BUF_H_
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#include <linux/cleanup.h>
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#include <linux/err.h>
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#include "xe_guc_buf_types.h"
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int xe_guc_buf_cache_init(struct xe_guc_buf_cache *cache);
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int xe_guc_buf_cache_init_with_size(struct xe_guc_buf_cache *cache, u32 size);
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u32 xe_guc_buf_cache_dwords(struct xe_guc_buf_cache *cache);
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struct xe_guc_buf xe_guc_buf_reserve(struct xe_guc_buf_cache *cache, u32 dwords);
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struct xe_guc_buf xe_guc_buf_from_data(struct xe_guc_buf_cache *cache,
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const void *data, size_t size);
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void xe_guc_buf_release(const struct xe_guc_buf buf);
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/**
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* xe_guc_buf_is_valid() - Check if a buffer reference is valid.
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* @buf: the &xe_guc_buf reference to check
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*
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* Return: true if @ref represents a valid sub-allication.
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*/
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static inline bool xe_guc_buf_is_valid(const struct xe_guc_buf buf)
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{
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return !IS_ERR_OR_NULL(buf.sa);
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}
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void *xe_guc_buf_cpu_ptr(const struct xe_guc_buf buf);
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void *xe_guc_buf_sync_read(const struct xe_guc_buf buf);
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u64 xe_guc_buf_flush(const struct xe_guc_buf buf);
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u64 xe_guc_buf_gpu_addr(const struct xe_guc_buf buf);
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u64 xe_guc_cache_gpu_addr_from_ptr(struct xe_guc_buf_cache *cache, const void *ptr, u32 size);
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DEFINE_CLASS(xe_guc_buf, struct xe_guc_buf,
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xe_guc_buf_release(_T),
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xe_guc_buf_reserve(cache, num),
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struct xe_guc_buf_cache *cache, u32 num);
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DEFINE_CLASS(xe_guc_buf_from_data, struct xe_guc_buf,
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xe_guc_buf_release(_T),
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xe_guc_buf_from_data(cache, data, size),
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struct xe_guc_buf_cache *cache, const void *data, size_t size);
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#endif
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