LoongArch: Humanize the EUEN line when showing registers

Example output looks like:

[   xx.xxxxxx]  EUEN: 00000000 (-FPE -SXE -ASXE -BTE)

Signed-off-by: WANG Xuerui <git@xen0n.name>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>

diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index 9f092e1cc7825a5115e3d947818edb9596dd40df..bd6be798f81dc471d04ec591df5aee8b7063237e 100644 (file)
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -211,6 +211,16 @@ static void print_prmd(unsigned long x)
        pr_cont(")\n");
 }
 
+static void print_euen(unsigned long x)
+{
+       printk(" EUEN: %08lx (", x);
+       print_bool_fragment("FPE", FIELD_GET(CSR_EUEN_FPEN, x), true);
+       print_bool_fragment("SXE", FIELD_GET(CSR_EUEN_LSXEN, x), false);
+       print_bool_fragment("ASXE", FIELD_GET(CSR_EUEN_LASXEN, x), false);
+       print_bool_fragment("BTE", FIELD_GET(CSR_EUEN_LBTEN, x), false);
+       pr_cont(")\n");
+}
+
 static void __show_regs(const struct pt_regs *regs)
 {
        const int field = 2 * sizeof(unsigned long);
@@ -254,7 +264,7 @@ static void __show_regs(const struct pt_regs *regs)
        /* Print saved important CSRs */
        print_crmd(regs->csr_crmd);
        print_prmd(regs->csr_prmd);
-       printk(" EUEN: %08lx\n", regs->csr_euen);
+       print_euen(regs->csr_euen);
        printk(" ECFG: %08lx\n", regs->csr_ecfg);
        printk("ESTAT: %08lx\n", regs->csr_estat);