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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2024 Intel Corporation
*/
#ifndef _XE_GUC_KLV_HELPERS_H_
#define _XE_GUC_KLV_HELPERS_H_
#include <linux/types.h>
struct drm_printer;
const char *xe_guc_klv_key_to_string(u16 key);
void xe_guc_klv_print(const u32 *klvs, u32 num_dwords, struct drm_printer *p);
int xe_guc_klv_count(const u32 *klvs, u32 num_dwords);
/**
* PREP_GUC_KLV - Prepare KLV header value based on provided key and len.
* @key: KLV key
* @len: KLV length
*
* Return: value of the KLV header (u32).
*/
#define PREP_GUC_KLV(key, len) \
(FIELD_PREP(GUC_KLV_0_KEY, (key)) | \
FIELD_PREP(GUC_KLV_0_LEN, (len)))
/**
* PREP_GUC_KLV_CONST - Prepare KLV header value based on const key and len.
* @key: const KLV key
* @len: const KLV length
*
* Return: value of the KLV header (u32).
*/
#define PREP_GUC_KLV_CONST(key, len) \
(FIELD_PREP_CONST(GUC_KLV_0_KEY, (key)) | \
FIELD_PREP_CONST(GUC_KLV_0_LEN, (len)))
/**
* PREP_GUC_KLV_TAG - Prepare KLV header value based on unique KLV definition tag.
* @TAG: unique tag of the KLV definition
*
* Combine separate KEY and LEN definitions of the KLV identified by the TAG.
*
* Return: value of the KLV header (u32).
*/
#define PREP_GUC_KLV_TAG(TAG) \
PREP_GUC_KLV_CONST(GUC_KLV_##TAG##_KEY, GUC_KLV_##TAG##_LEN)
#endif
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