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From: WANG Xuerui <kernel@xen0n.name>
To: Huacai Chen <chenhuacai@kernel.org>
Cc: loongarch@lists.linux.dev, WANG Xuerui <git@xen0n.name>
Subject: [PATCH v2 09/11] LoongArch: Humanize the ECFG line when showing registers
Date: Thu, 29 Dec 2022 13:33:04 +0800	[thread overview]
Message-ID: <20221229053306.3285457-10-kernel@xen0n.name> (raw)
In-Reply-To: <20221229053306.3285457-1-kernel@xen0n.name>

From: WANG Xuerui <git@xen0n.name>

Example output looks like:

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

Signed-off-by: WANG Xuerui <git@xen0n.name>
---
 arch/loongarch/kernel/traps.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/arch/loongarch/kernel/traps.c b/arch/loongarch/kernel/traps.c
index a43f95631cea..2b26e610cc8f 100644
--- a/arch/loongarch/kernel/traps.c
+++ b/arch/loongarch/kernel/traps.c
@@ -187,6 +187,12 @@ static void print_memory_type_fragment(const char *key, unsigned long val)
 	}
 }
 
+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)
 {
 	pr_cont(" crmd: %08lx (", x);
@@ -219,6 +225,13 @@ static void print_euen(unsigned long x)
 	pr_cont(")\n");
 }
 
+static void print_ecfg(unsigned long x)
+{
+	pr_cont(" ecfg: %08lx (VS=%d", x, (int) FIELD_GET(CSR_ECFG_VS, x));
+	print_intr_fragment("LIE", FIELD_GET(CSR_ECFG_IM, x));
+	pr_cont(")\n");
+}
+
 static void __show_regs(const struct pt_regs *regs)
 {
 	const int field = 2 * sizeof(unsigned long);
@@ -260,7 +273,7 @@ static void __show_regs(const struct pt_regs *regs)
 	print_crmd(regs->csr_crmd);
 	print_prmd(regs->csr_prmd);
 	print_euen(regs->csr_euen);
-	pr_cont(" ecfg: %08lx\n", regs->csr_ecfg);
+	print_ecfg(regs->csr_ecfg);
 	pr_cont("estat: %08lx\n", regs->csr_estat);
 
 	exccode = ((regs->csr_estat) & CSR_ESTAT_EXC) >> CSR_ESTAT_EXC_SHIFT;
-- 
2.38.1


  parent reply	other threads:[~2022-12-29  5:33 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-12-29  5:32 [PATCH v2 00/11] LoongArch: Better backtraces WANG Xuerui
2022-12-29  5:32 ` [PATCH v2 01/11] LoongArch: Clean up the architectural interrupt definitions WANG Xuerui
2022-12-29  5:32 ` [PATCH v2 02/11] LoongArch: Add exception subcode definitions for the watchpoint exception WANG Xuerui
2022-12-29  5:32 ` [PATCH v2 03/11] LoongArch: Print GPRs with ABI names when showing registers WANG Xuerui
2022-12-29  5:32 ` [PATCH v2 04/11] LoongArch: Print symbol info for PC and $ra only for kernel-mode contexts WANG Xuerui
2022-12-29  5:33 ` [PATCH v2 05/11] LoongArch: Fix format of CSR lines during show_regs WANG Xuerui
2022-12-29  5:33 ` [PATCH v2 06/11] LoongArch: Humanize the CRMD line when showing registers WANG Xuerui
2022-12-29  5:33 ` [PATCH v2 07/11] LoongArch: Humanize the PRMD " WANG Xuerui
2022-12-29  5:33 ` [PATCH v2 08/11] LoongArch: Humanize the EUEN " WANG Xuerui
2022-12-29  5:33 ` WANG Xuerui [this message]
2022-12-29  5:33 ` [PATCH v2 10/11] LoongArch: Humanize the ESTAT " WANG Xuerui
2022-12-29  5:33 ` [PATCH v2 11/11] LoongArch: Use lowercase ISA manual names for BADV and CPUCFG.PRID lines in show_regs WANG Xuerui
2023-01-01  9:51 ` [PATCH v2 00/11] LoongArch: Better backtraces Huacai Chen

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