From 0102c8c7fdfc4bd700971daff2b94470f4eafae4 Mon Sep 17 00:00:00 2001 From: Dapeng Mi Date: Thu, 17 Sep 2026 09:52:33 +0800 Subject: perf/x86/intel: Rename DMR offcore_rsp attribute to offmodule_rsp DMR introduces Offmodule Response events in place of the legacy Offcore Response events, but it still exposes the inherited offcore_rsp PMU attribute for programming the corresponding MSR data. Rename the DMR PMU attribute to offmodule_rsp so the sysfs interface matches the underlying event name and avoids user & tooling confusion. Signed-off-by: Dapeng Mi Signed-off-by: Peter Zijlstra (Intel) Signed-off-by: Ingo Molnar Link: https://patch.msgid.link/20260917015234.981153-12-dapeng1.mi@linux.intel.com --- scripts/dtc/fstree.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+) create mode 100644 scripts/dtc/fstree.c (limited to 'scripts/dtc/fstree.c') diff --git a/scripts/dtc/fstree.c b/scripts/dtc/fstree.c new file mode 100644 index 000000000..0f9a534ba --- /dev/null +++ b/scripts/dtc/fstree.c @@ -0,0 +1,76 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * (C) Copyright David Gibson , IBM Corporation. 2005. + */ + +#include "dtc.h" + +#include +#include + +static struct node *read_fstree(const char *dirname) +{ + DIR *d; + struct dirent *de; + struct stat st; + struct node *tree; + + d = opendir(dirname); + if (!d) + die("Couldn't opendir() \"%s\": %s\n", dirname, strerror(errno)); + + tree = build_node(NULL, NULL, NULL); + + while ((de = readdir(d)) != NULL) { + char *tmpname; + + if (streq(de->d_name, ".") + || streq(de->d_name, "..")) + continue; + + tmpname = join_path(dirname, de->d_name); + + if (stat(tmpname, &st) < 0) + die("stat(%s): %s\n", tmpname, strerror(errno)); + + if (S_ISREG(st.st_mode)) { + struct property *prop; + FILE *pfile; + + pfile = fopen(tmpname, "rb"); + if (! pfile) { + fprintf(stderr, + "WARNING: Cannot open %s: %s\n", + tmpname, strerror(errno)); + } else { + prop = build_property(de->d_name, + data_copy_file(pfile, + st.st_size), + NULL); + add_property(tree, prop); + fclose(pfile); + } + } else if (S_ISDIR(st.st_mode)) { + struct node *newchild; + + newchild = read_fstree(tmpname); + newchild = name_node(newchild, xstrdup(de->d_name)); + add_child(tree, newchild); + } + + free(tmpname); + } + + closedir(d); + return tree; +} + +struct dt_info *dt_from_fs(const char *dirname) +{ + struct node *tree; + + tree = read_fstree(dirname); + tree = name_node(tree, ""); + + return build_dt_info(DTSF_V1, NULL, tree, guess_boot_cpuid(tree)); +} -- cgit v1.3.1