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/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2023 Intel Corporation
*/
#ifndef _XE_GUC_HXG_HELPERS_H_
#define _XE_GUC_HXG_HELPERS_H_
#include <linux/bitfield.h>
#include <linux/types.h>
#include "abi/guc_messages_abi.h"
/**
* hxg_sizeof - Queries size of the object or type (in HXG units).
* @T: the object or type
*
* Force a compilation error if actual size is not aligned to HXG unit (u32).
*
* Return: size in dwords (u32).
*/
#define hxg_sizeof(T) (sizeof(T) / sizeof(u32) + BUILD_BUG_ON_ZERO(sizeof(T) % sizeof(u32)))
static inline const char *guc_hxg_type_to_string(unsigned int type)
{
switch (type) {
case GUC_HXG_TYPE_REQUEST:
return "request";
case GUC_HXG_TYPE_FAST_REQUEST:
return "fast-request";
case GUC_HXG_TYPE_EVENT:
return "event";
case GUC_HXG_TYPE_NO_RESPONSE_BUSY:
return "busy";
case GUC_HXG_TYPE_NO_RESPONSE_RETRY:
return "retry";
case GUC_HXG_TYPE_RESPONSE_FAILURE:
return "failure";
case GUC_HXG_TYPE_RESPONSE_SUCCESS:
return "response";
default:
return "<invalid>";
}
}
static inline bool guc_hxg_type_is_action(unsigned int type)
{
switch (type) {
case GUC_HXG_TYPE_REQUEST:
case GUC_HXG_TYPE_FAST_REQUEST:
case GUC_HXG_TYPE_EVENT:
return true;
default:
return false;
}
}
static inline bool guc_hxg_type_is_reply(unsigned int type)
{
switch (type) {
case GUC_HXG_TYPE_NO_RESPONSE_BUSY:
case GUC_HXG_TYPE_NO_RESPONSE_RETRY:
case GUC_HXG_TYPE_RESPONSE_FAILURE:
case GUC_HXG_TYPE_RESPONSE_SUCCESS:
return true;
default:
return false;
}
}
static inline u32 guc_hxg_msg_encode_success(u32 *msg, u32 data0)
{
msg[0] = FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_RESPONSE_SUCCESS) |
FIELD_PREP(GUC_HXG_RESPONSE_MSG_0_DATA0, data0);
return GUC_HXG_RESPONSE_MSG_MIN_LEN;
}
static inline u32 guc_hxg_msg_encode_failure(u32 *msg, u32 error, u32 hint)
{
msg[0] = FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_RESPONSE_FAILURE) |
FIELD_PREP(GUC_HXG_FAILURE_MSG_0_HINT, hint) |
FIELD_PREP(GUC_HXG_FAILURE_MSG_0_ERROR, error);
return GUC_HXG_FAILURE_MSG_LEN;
}
static inline u32 guc_hxg_msg_encode_busy(u32 *msg, u32 counter)
{
msg[0] = FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_NO_RESPONSE_BUSY) |
FIELD_PREP(GUC_HXG_BUSY_MSG_0_COUNTER, counter);
return GUC_HXG_BUSY_MSG_LEN;
}
static inline u32 guc_hxg_msg_encode_retry(u32 *msg, u32 reason)
{
msg[0] = FIELD_PREP(GUC_HXG_MSG_0_ORIGIN, GUC_HXG_ORIGIN_HOST) |
FIELD_PREP(GUC_HXG_MSG_0_TYPE, GUC_HXG_TYPE_NO_RESPONSE_RETRY) |
FIELD_PREP(GUC_HXG_RETRY_MSG_0_REASON, reason);
return GUC_HXG_RETRY_MSG_LEN;
}
#endif
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