58 lines
1.5 KiB
C
58 lines
1.5 KiB
C
/* Copyright 2013-2014 IBM Corp.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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* implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Code for handling FSP_MCLASS_DIAG messages (cmd 0xee)
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* Receiving a high level ack timeout is likely indicative of a firmware bug
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*/
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#include <skiboot.h>
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#include <fsp.h>
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#include <lock.h>
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#include <processor.h>
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#include <timebase.h>
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#include <opal.h>
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#include <fsp-sysparam.h>
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static bool fsp_diag_msg(u32 cmd_sub_mod, struct fsp_msg *msg)
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{
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if (cmd_sub_mod == FSP_RSP_DIAG_LINK_ERROR) {
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printf("FIXME: Unhandled FSP_MCLASS_DIAG Link Error Report\n");
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return false;
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}
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if (cmd_sub_mod != FSP_RSP_DIAG_ACK_TIMEOUT) {
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printf("BUG: Unhandled subcommand: 0x%x (New FSP spec?)\n",
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cmd_sub_mod);
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return false;
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}
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printf("BUG: High Level ACK timeout (FSP_MCLASS_DIAG) for 0x%x\n",
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msg->data.words[0] & 0xffff0000);
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return true;
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}
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static struct fsp_client fsp_diag = {
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.message = fsp_diag_msg,
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};
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/* This is called at boot time */
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void fsp_init_diag(void)
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{
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/* Register for the diag event */
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fsp_register_client(&fsp_diag, FSP_MCLASS_DIAG);
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}
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