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