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fixup! arch/arm64: Add Revision, Serial, Model to cpuinfo

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This commit is contained in:
Dom Cobley
2025-11-12 12:20:42 +00:00
parent 69f60687b7
commit 336ef39adb
1 changed files with 22 additions and 20 deletions
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42
arch/arm64/kernel/cpuinfo.c
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@@ -219,10 +219,6 @@ static int c_show(struct seq_file *m, void *v)
bool compat = personality(current->personality) == PER_LINUX32;
struct cpuinfo_arm64 *cpuinfo = v;
u32 midr = cpuinfo->reg_midr;
struct device_node *np;
const char *model;
const char *serial;
u32 revision;
/*
* glibc reads /proc/cpuinfo to determine the number of
@@ -278,24 +274,30 @@ static int c_show(struct seq_file *m, void *v)
seq_printf(m, "CPU part\t: 0x%03x\n", MIDR_PARTNUM(midr));
seq_printf(m, "CPU revision\t: %d\n\n", MIDR_REVISION(midr));
np = of_find_node_by_path("/system");
if (np) {
if (!of_property_read_u32(np, "linux,revision", &revision))
seq_printf(m, "Revision\t: %04x\n", revision);
of_node_put(np);
}
if (m->index + 1 == nr_cpu_ids) {
struct device_node *np;
const char *model;
const char *serial;
u32 revision;
np = of_find_node_by_path("/");
if (np) {
if (!of_property_read_string(np, "serial-number",
&serial))
seq_printf(m, "Serial\t\t: %s\n", serial);
if (!of_property_read_string(np, "model",
&model))
seq_printf(m, "Model\t\t: %s\n", model);
of_node_put(np);
}
np = of_find_node_by_path("/system");
if (np) {
if (!of_property_read_u32(np, "linux,revision", &revision))
seq_printf(m, "Revision\t: %04x\n", revision);
of_node_put(np);
}
np = of_find_node_by_path("/");
if (np) {
if (!of_property_read_string(np, "serial-number",
&serial))
seq_printf(m, "Serial\t\t: %s\n", serial);
if (!of_property_read_string(np, "model",
&model))
seq_printf(m, "Model\t\t: %s\n", model);
of_node_put(np);
}
}
return 0;
}