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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/*
* Code for handling FSP_MCLASS_DIAG messages (cmd 0xee)
* Receiving a high level ack timeout is likely indicative of a firmware bug
*
* Copyright 2013-2014 IBM Corp.
*/
#include <skiboot.h>
#include <fsp.h>
#include <lock.h>
#include <processor.h>
#include <timebase.h>
#include <opal.h>
#include <fsp-sysparam.h>
static bool fsp_diag_msg(u32 cmd_sub_mod, struct fsp_msg *msg)
{
if (cmd_sub_mod == FSP_RSP_DIAG_LINK_ERROR) {
printf("FIXME: Unhandled FSP_MCLASS_DIAG Link Error Report\n");
return false;
}
if (cmd_sub_mod != FSP_RSP_DIAG_ACK_TIMEOUT) {
printf("BUG: Unhandled subcommand: 0x%x (New FSP spec?)\n",
cmd_sub_mod);
return false;
}
printf("BUG: High Level ACK timeout (FSP_MCLASS_DIAG) for 0x%x\n",
fsp_msg_get_data_word(msg, 0) & 0xffff0000);
return true;
}
static struct fsp_client fsp_diag = {
.message = fsp_diag_msg,
};
/* This is called at boot time */
void fsp_init_diag(void)
{
/* Register for the diag event */
fsp_register_client(&fsp_diag, FSP_MCLASS_DIAG);
}
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