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