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riscv/cpu: add more information to show on cpuinfo

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Signed-off-by: Mohamad Noor Alim Hussin <mnalim@efinixinc.com>
This commit is contained in:
Mohamad Noor Alim Hussin
2022-08-11 11:34:46 +08:00
committed by Byron Lathi
parent 69a1a758d5
commit 416f78df05
1 changed files with 25 additions and 0 deletions
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25
arch/riscv/kernel/cpu.c
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@@ -102,14 +102,39 @@ static void c_stop(struct seq_file *m, void *v)
{
}
static unsigned int to_mhz(unsigned int num)
{
return num/(1000*1000);
}
static unsigned int to_kb(unsigned int num)
{
return num/1024;
}
static int c_show(struct seq_file *m, void *v)
{
unsigned long cpu_id = (unsigned long)v - 1;
struct device_node *node = of_get_cpu_node(cpu_id, NULL);
const char *compat, *isa, *mmu;
const char *board, *cpu_name;
unsigned int icache, dcache, l2_cache;
unsigned int freq;
if (!of_property_read_string(node, "board", &board))
seq_printf(m, "board name\t: %s\n", board);
if (!of_property_read_string(node, "cpu-name", &cpu_name))
seq_printf(m, "cpu name\t: %s\n", cpu_name);
seq_printf(m, "processor\t: %lu\n", cpu_id);
seq_printf(m, "hart\t\t: %lu\n", cpuid_to_hartid_map(cpu_id));
if (!of_property_read_u32(node, "clock-frequency", &freq))
seq_printf(m, "cpu MHz\t\t: %u\n", to_mhz(freq));
if (!of_property_read_u32(node, "i-cache-size", &icache))
seq_printf(m, "i-cache-size\t: %u KB\n", to_kb(icache));
if (!of_property_read_u32(node, "d-cache-size", &dcache))
seq_printf(m, "d-cache-size \t: %u KB\n", to_kb(dcache));
if (!of_property_read_u32(node, "l2-cache-size", &l2_cache))
seq_printf(m, "l2-cache-size \t: %u KB\n", to_kb(l2_cache));
if (!of_property_read_string(node, "riscv,isa", &isa))
print_isa(m, isa);
if (!of_property_read_string(node, "mmu-type", &mmu))