35 lines
778 B
C
35 lines
778 B
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*/
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#include <linux/kernel.h>
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#include <linux/printk.h>
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#include <linux/ptrace.h>
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#include <asm/reg.h>
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int machine_check_8xx(struct pt_regs *regs)
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{
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unsigned long reason = regs->msr;
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pr_err("Machine check in kernel mode.\n");
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pr_err("Caused by (from SRR1=%lx): ", reason);
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if (reason & 0x40000000)
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pr_cont("Fetch error at address %lx\n", regs->nip);
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else
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pr_cont("Data access error at address %lx\n", regs->dar);
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#ifdef CONFIG_PCI
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/* the qspan pci read routines can cause machine checks -- Cort
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*
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* yuck !!! that totally needs to go away ! There are better ways
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* to deal with that than having a wart in the mcheck handler.
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* -- BenH
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*/
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bad_page_fault(regs, SIGBUS);
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return 1;
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#else
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return 0;
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#endif
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}
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