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