mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
91 lines
2.3 KiB
C
91 lines
2.3 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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#include <linux/kernel.h>
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#include <linux/string.h>
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#include <asm/lowcore.h>
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#include <asm/sclp.h>
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#include "boot.h"
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const char hex_asc[] = "0123456789abcdef";
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#define add_val_as_hex(dst, val) \
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__add_val_as_hex(dst, (const unsigned char *)&val, sizeof(val))
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static char *__add_val_as_hex(char *dst, const unsigned char *src, size_t count)
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{
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while (count--)
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dst = hex_byte_pack(dst, *src++);
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return dst;
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}
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static char *add_str(char *dst, char *src)
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{
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strcpy(dst, src);
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return dst + strlen(dst);
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}
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void print_pgm_check_info(void)
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{
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struct psw_bits *psw = &psw_bits(S390_lowcore.psw_save_area);
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unsigned short ilc = S390_lowcore.pgm_ilc >> 1;
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char buf[256];
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int row, col;
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char *p;
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add_str(buf, "Linux version ");
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strlcat(buf, kernel_version, sizeof(buf));
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sclp_early_printk(buf);
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p = add_str(buf, "Kernel fault: interruption code ");
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p = add_val_as_hex(buf + strlen(buf), S390_lowcore.pgm_code);
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p = add_str(p, " ilc:");
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*p++ = hex_asc_lo(ilc);
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add_str(p, "\n");
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sclp_early_printk(buf);
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p = add_str(buf, "PSW : ");
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p = add_val_as_hex(p, S390_lowcore.psw_save_area.mask);
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p = add_str(p, " ");
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p = add_val_as_hex(p, S390_lowcore.psw_save_area.addr);
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add_str(p, "\n");
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sclp_early_printk(buf);
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p = add_str(buf, " R:");
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*p++ = hex_asc_lo(psw->per);
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p = add_str(p, " T:");
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*p++ = hex_asc_lo(psw->dat);
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p = add_str(p, " IO:");
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*p++ = hex_asc_lo(psw->io);
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p = add_str(p, " EX:");
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*p++ = hex_asc_lo(psw->ext);
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p = add_str(p, " Key:");
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*p++ = hex_asc_lo(psw->key);
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p = add_str(p, " M:");
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*p++ = hex_asc_lo(psw->mcheck);
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p = add_str(p, " W:");
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*p++ = hex_asc_lo(psw->wait);
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p = add_str(p, " P:");
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*p++ = hex_asc_lo(psw->pstate);
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p = add_str(p, " AS:");
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*p++ = hex_asc_lo(psw->as);
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p = add_str(p, " CC:");
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*p++ = hex_asc_lo(psw->cc);
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p = add_str(p, " PM:");
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*p++ = hex_asc_lo(psw->pm);
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p = add_str(p, " RI:");
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*p++ = hex_asc_lo(psw->ri);
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p = add_str(p, " EA:");
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*p++ = hex_asc_lo(psw->eaba);
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add_str(p, "\n");
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sclp_early_printk(buf);
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for (row = 0; row < 4; row++) {
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p = add_str(buf, row == 0 ? "GPRS:" : " ");
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for (col = 0; col < 4; col++) {
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p = add_str(p, " ");
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p = add_val_as_hex(p, S390_lowcore.gpregs_save_area[row * 4 + col]);
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}
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add_str(p, "\n");
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sclp_early_printk(buf);
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}
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}
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