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4f8e78c075
Create an anonymous union for dsisr and esr regsiters, we can reference esr to get the exception detail when CONFIG_4xx=y or CONFIG_BOOKE=y. Otherwise, reference dsisr. This makes code more clear. Signed-off-by: Xiongwei Song <sxwjean@gmail.com> [mpe: Reword commit title] Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20210807010239.416055-2-sxwjean@me.com
24 lines
411 B
C
24 lines
411 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_4xx(struct pt_regs *regs)
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{
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unsigned long reason = regs->esr;
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if (reason & ESR_IMCP) {
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printk("Instruction");
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mtspr(SPRN_ESR, reason & ~ESR_IMCP);
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} else
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printk("Data");
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printk(" machine check in kernel mode.\n");
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return 0;
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}
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