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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2017-2018 Intel Corporation
*/
#ifndef _INTEL_WOPCM_H_
#define _INTEL_WOPCM_H_
#include <linux/types.h>
/**
* struct intel_wopcm - Overall WOPCM info and WOPCM regions.
* @size: Size of overall WOPCM.
* @guc: GuC WOPCM Region info.
* @guc.base: GuC WOPCM base which is offset from WOPCM base.
* @guc.size: Size of the GuC WOPCM region.
*/
struct intel_wopcm {
u32 size;
struct {
u32 base;
u32 size;
} guc;
};
/**
* intel_wopcm_guc_base()
* @wopcm: intel_wopcm structure
*
* Returns the base of the WOPCM shadowed region.
*
* Returns:
* 0 if GuC is not present or not in use.
* Otherwise, the GuC WOPCM base.
*/
static inline u32 intel_wopcm_guc_base(struct intel_wopcm *wopcm)
{
return wopcm->guc.base;
}
/**
* intel_wopcm_guc_size()
* @wopcm: intel_wopcm structure
*
* Returns size of the WOPCM shadowed region.
*
* Returns:
* 0 if GuC is not present or not in use.
* Otherwise, the GuC WOPCM size.
*/
static inline u32 intel_wopcm_guc_size(struct intel_wopcm *wopcm)
{
return wopcm->guc.size;
}
void intel_wopcm_init_early(struct intel_wopcm *wopcm);
void intel_wopcm_init(struct intel_wopcm *wopcm);
#endif
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