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LoongArch: Humanize the PRMD line when showing registers 

Example output looks like:

[   xx.xxxxxx]  PRMD: 00000004 (PPLV0 +PIE -PWE)

Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
This commit is contained in:
WANG Xuerui 2023-05-01 17:19:10 +08:00 committed by Huacai Chen
parent efada2afac
commit ce7f0b18b0
1 changed files with 10 additions and 1 deletions
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11
arch/loongarch/kernel/traps.c
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@ -202,6 +202,15 @@ static void print_crmd(unsigned long x)
pr_cont(")\n");
}
static void print_prmd(unsigned long x)
{
printk(" PRMD: %08lx (", x);
print_plv_fragment("PPLV", (int) FIELD_GET(CSR_PRMD_PPLV, x));
print_bool_fragment("PIE", FIELD_GET(CSR_PRMD_PIE, x), false);
print_bool_fragment("PWE", FIELD_GET(CSR_PRMD_PWE, x), false);
pr_cont(")\n");
}
static void __show_regs(const struct pt_regs *regs)
{
const int field = 2 * sizeof(unsigned long);
@ -244,7 +253,7 @@ static void __show_regs(const struct pt_regs *regs)
/* Print saved important CSRs */
print_crmd(regs->csr_crmd);
printk(" PRMD: %08lx\n", regs->csr_prmd);
print_prmd(regs->csr_prmd);
printk(" EUEN: %08lx\n", regs->csr_euen);
printk(" ECFG: %08lx\n", regs->csr_ecfg);
printk("ESTAT: %08lx\n", regs->csr_estat);