/* * (C) Copyright David Gibson , IBM Corporation. 2005. * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 * USA */ #include "dtc.h" #include "srcpos.h" extern FILE *yyin; extern int yyparse(void); extern YYLTYPE yylloc; struct boot_info *the_boot_info; bool treesource_error; struct boot_info *dt_from_source(const char *fname) { the_boot_info = NULL; treesource_error = false; srcfile_push(fname); yyin = current_srcfile->f; yylloc.file = current_srcfile; if (yyparse() != 0) die("Unable to parse input tree\n"); if (treesource_error) die("Syntax error parsing input tree\n"); return the_boot_info; } static void write_prefix(FILE *f, int level) { int i; for (i = 0; i < level; i++) fputc('\t', f); } static bool isstring(char c) { return (isprint((unsigned char)c) || (c == '\0') || strchr("\a\b\t\n\v\f\r", c)); } static void write_propval_string(FILE *f, struct data val) { const char *str = val.val; int i; struct marker *m = val.markers; assert(str[val.len-1] == '\0'); while (m && (m->offset == 0)) { if (m->type == LABEL) fprintf(f, "%s: ", m->ref); m = m->next; } fprintf(f, "\""); for (i = 0; i < (val.len-1); i++) { char c = str[i]; switch (c) { case '\a': fprintf(f, "\\a"); break; case '\b': fprintf(f, "\\b"); break; case '\t': fprintf(f, "\\t"); break; case '\n': fprintf(f, "\\n"); break; case '\v': fprintf(f, "\\v"); break; case '\f': fprintf(f, "\\f"); break; case '\r': fprintf(f, "\\r"); break; case '\\': fprintf(f, "\\\\"); break; case '\"': fprintf(f, "\\\""); break; case '\0': fprintf(f, "\", "); while (m && (m->offset <= (i + 1))) { if (m->type == LABEL) { assert(m->offset == (i+1)); fprintf(f, "%s: ", m->ref); } m = m->next; } fprintf(f, "\""); break; default: if (isprint((unsigned char)c)) fprintf(f, "%c", c); else fprintf(f, "\\x%02hhx", c); } } fprintf(f, "\""); /* Wrap up any labels at the end of the value */ for_each_marker_of_type(m, LABEL) { assert (m->offset == val.len); fprintf(f, " %s:", m->ref); } } static void write_propval_cells(FILE *f, struct data val) { void *propend = val.val + val.len; cell_t *cp = (cell_t *)val.val; struct marker *m = val.markers; fprintf(f, "<"); for (;;) { while (m && (m->offset <= ((char *)cp - val.val))) { if (m->type == LABEL) { assert(m->offset == ((char *)cp - val.val)); fprintf(f, "%s: ", m->ref); } m = m->next; } fprintf(f, "0x%x", fdt32_to_cpu(*cp++)); if ((void *)cp >= propend) break; fprintf(f, " "); } /* Wrap up any labels at the end of the value */ for_each_marker_of_type(m, LABEL) { assert (m->offset == val.len); fprintf(f, " %s:", m->ref); } fprintf(f, ">"); } static void write_propval_bytes(FILE *f, struct data val) { void *propend = val.val + val.len; const char *bp = val.val; struct marker *m = val.markers; fprintf(f, "["); for (;;) { while (m && (m->offset == (bp-val.val))) { if (m->type == LABEL) fprintf(f, "%s: ", m->ref); m = m->next; } fprintf(f, "%02hhx", (unsigned char)(*bp++)); if ((const void *)bp >= propend) break; fprintf(f, " "); } /* Wrap up any labels at the end of the value */ for_each_marker_of_type(m, LABEL) { assert (m->offset == val.len); fprintf(f, " %s:", m->ref); } fprintf(f, "]"); } static void write_propval(FILE *f, struct property *prop) { int len = prop->val.len; const char *p = prop->val.val; struct marker *m = prop->val.markers; int nnotstring = 0, nnul = 0; int nnotstringlbl = 0, nnotcelllbl = 0; int i; if (len == 0) { fprintf(f, ";\n"); return; } for (i = 0; i < len; i++) { if (! isstring(p[i])) nnotstring++; if (p[i] == '\0') nnul++; } for_each_marker_of_type(m, LABEL) { if ((m->offset > 0) && (prop->val.val[m->offset - 1] != '\0')) nnotstringlbl++; if ((m->offset % sizeof(cell_t)) != 0) nnotcelllbl++; } fprintf(f, " = "); if ((p[len-1] == '\0') && (nnotstring == 0) && (nnul < (len-nnul)) && (nnotstringlbl == 0)) { write_propval_string(f, prop->val); } else if (((len % sizeof(cell_t)) == 0) && (nnotcelllbl == 0)) { write_propval_cells(f, prop->val); } else { write_propval_bytes(f, prop->val); } fprintf(f, ";\n"); } static void write_tree_source_node(FILE *f, struct node *tree, int level) { struct property *prop; struct node *child; struct label *l; write_prefix(f, level); for_each_label(tree->labels, l) fprintf(f, "%s: ", l->label); if (tree->name && (*tree->name)) fprintf(f, "%s {\n", tree->name); else fprintf(f, "/ {\n"); for_each_property(tree, prop) { write_prefix(f, level+1); for_each_label(prop->labels, l) fprintf(f, "%s: ", l->label); fprintf(f, "%s", prop->name); write_propval(f, prop); } for_each_child(tree, child) { fprintf(f, "\n"); write_tree_source_node(f, child, level+1); } write_prefix(f, level); fprintf(f, "};\n"); } void dt_to_source(FILE *f, struct boot_info *bi) { struct reserve_info *re; fprintf(f, "/dts-v1/;\n\n"); for (re = bi->reservelist; re; re = re->next) { struct label *l; for_each_label(re->labels, l) fprintf(f, "%s: ", l->label); fprintf(f, "/memreserve/\t0x%016llx 0x%016llx;\n", (unsigned long long)re->re.address, (unsigned long long)re->re.size); } write_tree_source_node(f, bi->dt, 0); } njection/failcmd.sh?h=nds-private-remove&id=0becc0ae5b42828785b589f686725ff5bc3b9b25'>tools/testing/fault-injection/failcmd.sh parent24c2503255d35c269b67162c397a1a1c1e02f6ce (diff)
x86/mce: Make timer handling more robust
Erik reported that on a preproduction hardware a CMCI storm triggers the BUG_ON in add_timer_on(). The reason is that the per CPU MCE timer is started by the CMCI logic before the MCE CPU hotplug callback starts the timer with add_timer_on(). So the timer is already queued which triggers the BUG. Using add_timer_on() is pretty pointless in this code because the timer is strictlty per CPU, initialized as pinned and all operations which arm the timer happen on the CPU to which the timer belongs. Simplify the whole machinery by using mod_timer() instead of add_timer_on() which avoids the problem because mod_timer() can handle already queued timers. Use __start_timer() everywhere so the earliest armed expiry time is preserved. Reported-by: Erik Veijola <erik.veijola@intel.com> Tested-by: Borislav Petkov <bp@alien8.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Tony Luck <tony.luck@intel.com> Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701310936080.3457@nanos Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/testing/fault-injection/failcmd.sh')