cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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vm_events.c (2592B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Mostly IRQ support for Hexagon
      4 *
      5 * Copyright (c) 2010-2012, The Linux Foundation. All rights reserved.
      6 */
      7
      8#include <linux/kernel.h>
      9#include <linux/sched/debug.h>
     10#include <asm/registers.h>
     11#include <linux/irq.h>
     12#include <linux/hardirq.h>
     13
     14/*
     15 * show_regs - print pt_regs structure
     16 * @regs: pointer to pt_regs
     17 *
     18 * To-do:  add all the accessor definitions to registers.h
     19 *
     20 * Will make this routine a lot easier to write.
     21 */
     22void show_regs(struct pt_regs *regs)
     23{
     24	show_regs_print_info(KERN_EMERG);
     25
     26	printk(KERN_EMERG "restart_r0: \t0x%08lx   syscall_nr: %ld\n",
     27	       regs->restart_r0, regs->syscall_nr);
     28	printk(KERN_EMERG "preds: \t\t0x%08lx\n", regs->preds);
     29	printk(KERN_EMERG "lc0: \t0x%08lx   sa0: 0x%08lx   m0:  0x%08lx\n",
     30	       regs->lc0, regs->sa0, regs->m0);
     31	printk(KERN_EMERG "lc1: \t0x%08lx   sa1: 0x%08lx   m1:  0x%08lx\n",
     32	       regs->lc1, regs->sa1, regs->m1);
     33	printk(KERN_EMERG "gp: \t0x%08lx   ugp: 0x%08lx   usr: 0x%08lx\n",
     34	       regs->gp, regs->ugp, regs->usr);
     35	printk(KERN_EMERG "cs0: \t0x%08lx   cs1: 0x%08lx\n",
     36	       regs->cs0, regs->cs1);
     37	printk(KERN_EMERG "r0: \t0x%08lx %08lx %08lx %08lx\n", regs->r00,
     38		regs->r01,
     39		regs->r02,
     40		regs->r03);
     41	printk(KERN_EMERG "r4:  \t0x%08lx %08lx %08lx %08lx\n", regs->r04,
     42		regs->r05,
     43		regs->r06,
     44		regs->r07);
     45	printk(KERN_EMERG "r8:  \t0x%08lx %08lx %08lx %08lx\n", regs->r08,
     46		regs->r09,
     47		regs->r10,
     48		regs->r11);
     49	printk(KERN_EMERG "r12: \t0x%08lx %08lx %08lx %08lx\n", regs->r12,
     50		regs->r13,
     51		regs->r14,
     52		regs->r15);
     53	printk(KERN_EMERG "r16: \t0x%08lx %08lx %08lx %08lx\n", regs->r16,
     54		regs->r17,
     55		regs->r18,
     56		regs->r19);
     57	printk(KERN_EMERG "r20: \t0x%08lx %08lx %08lx %08lx\n", regs->r20,
     58		regs->r21,
     59		regs->r22,
     60		regs->r23);
     61	printk(KERN_EMERG "r24: \t0x%08lx %08lx %08lx %08lx\n", regs->r24,
     62		regs->r25,
     63		regs->r26,
     64		regs->r27);
     65	printk(KERN_EMERG "r28: \t0x%08lx %08lx %08lx %08lx\n", regs->r28,
     66		regs->r29,
     67		regs->r30,
     68		regs->r31);
     69
     70	printk(KERN_EMERG "elr: \t0x%08lx   cause: 0x%08lx   user_mode: %d\n",
     71		pt_elr(regs), pt_cause(regs), user_mode(regs));
     72	printk(KERN_EMERG "psp: \t0x%08lx   badva: 0x%08lx   int_enabled: %d\n",
     73		pt_psp(regs), pt_badva(regs), ints_enabled(regs));
     74}
     75
     76void dummy_handler(struct pt_regs *regs)
     77{
     78	unsigned int elr = pt_elr(regs);
     79	printk(KERN_ERR "Unimplemented handler; ELR=0x%08x\n", elr);
     80}
     81
     82
     83void arch_do_IRQ(struct pt_regs *regs)
     84{
     85	int irq = pt_cause(regs);
     86	struct pt_regs *old_regs = set_irq_regs(regs);
     87
     88	irq_enter();
     89	generic_handle_irq(irq);
     90	irq_exit();
     91	set_irq_regs(old_regs);
     92}