52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* linux/arch/parisc/kernel/pa7300lc.c
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* - PA7300LC-specific functions
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*
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* Copyright (C) 2000 Philipp Rumpf */
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#include <linux/sched.h>
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#include <linux/sched/debug.h>
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#include <linux/smp.h>
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#include <linux/kernel.h>
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#include <asm/io.h>
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#include <asm/ptrace.h>
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#include <asm/machdep.h>
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/* CPU register indices */
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#define MIOC_STATUS 0xf040
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#define MIOC_CONTROL 0xf080
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#define MDERRADD 0xf0e0
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#define DMAERR 0xf0e8
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#define DIOERR 0xf0ec
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#define HIDMAMEM 0xf0f4
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/* this returns the HPA of the CPU it was called on */
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static u32 cpu_hpa(void)
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{
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return 0xfffb0000;
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}
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static void pa7300lc_lpmc(int code, struct pt_regs *regs)
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{
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u32 hpa;
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printk(KERN_WARNING "LPMC on CPU %d\n", smp_processor_id());
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show_regs(regs);
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hpa = cpu_hpa();
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printk(KERN_WARNING
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"MIOC_CONTROL %08x\n" "MIOC_STATUS %08x\n"
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"MDERRADD %08x\n" "DMAERR %08x\n"
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"DIOERR %08x\n" "HIDMAMEM %08x\n",
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gsc_readl(hpa+MIOC_CONTROL), gsc_readl(hpa+MIOC_STATUS),
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gsc_readl(hpa+MDERRADD), gsc_readl(hpa+DMAERR),
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gsc_readl(hpa+DIOERR), gsc_readl(hpa+HIDMAMEM));
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}
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void pa7300lc_init(void)
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{
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cpu_lpmc = pa7300lc_lpmc;
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}
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