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LoongArch: Humanize the ECFG line when showing registers 

Example output looks like:

[   xx.xxxxxx]  ECFG: 00071c1c (LIE=2-4,10-12 VS=7)

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 17:19:27 +08:00 committed by Huacai Chen
parent 9718d96c03
commit 5e3e784d35
1 changed files with 14 additions and 1 deletions
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15
arch/loongarch/kernel/traps.c
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@ -189,6 +189,12 @@ static void print_memory_type_fragment(const char *key, unsigned long val)
pr_cont(" %s=%s", key, humanized_type);
}
static void print_intr_fragment(const char *key, unsigned long val)
{
/* e.g. "LIE=0-1,3,5-7" */
pr_cont("%s=%*pbl", key, EXCCODE_INT_NUM, &val);
}
static void print_crmd(unsigned long x)
{
printk(" CRMD: %08lx (", x);
@ -221,6 +227,13 @@ static void print_euen(unsigned long x)
pr_cont(")\n");
}
static void print_ecfg(unsigned long x)
{
printk(" ECFG: %08lx (", x);
print_intr_fragment("LIE", FIELD_GET(CSR_ECFG_IM, x));
pr_cont(" VS=%d)\n", (int) FIELD_GET(CSR_ECFG_VS, x));
}
static void __show_regs(const struct pt_regs *regs)
{
const int field = 2 * sizeof(unsigned long);
@ -265,7 +278,7 @@ static void __show_regs(const struct pt_regs *regs)
print_crmd(regs->csr_crmd);
print_prmd(regs->csr_prmd);
print_euen(regs->csr_euen);
printk(" ECFG: %08lx\n", regs->csr_ecfg);
print_ecfg(regs->csr_ecfg);
printk("ESTAT: %08lx\n", regs->csr_estat);
exccode = ((regs->csr_estat) & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT;