43 lines
1.7 KiB
Diff
43 lines
1.7 KiB
Diff
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From d909e6bfef50fc67708358e455a3b53d869249e6 Mon Sep 17 00:00:00 2001
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From: Song Gao <gaosong@loongson.cn>
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Date: Fri, 5 Jul 2024 10:18:39 +0800
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Subject: [PATCH 49/78] target/loongarch: Fix cpu_reset set wrong CSR_CRMD
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After cpu_reset, DATF in CSR_CRMD is 0, DATM is 0.
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See the manual[1] 6.4.
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[1]: https://github.com/loongson/LoongArch-Documentation/releases/download/2023.04.20/LoongArch-Vol1-v1.10-EN.pdf
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Signed-off-by: Song Gao <gaosong@loongson.cn>
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Reviewed-by: Bibo Mao <maobibo@loongson.cn>
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Message-Id: <20240705021839.1004374-2-gaosong@loongson.cn>
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Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
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---
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target/loongarch/cpu.c | 6 +++---
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1 file changed, 3 insertions(+), 3 deletions(-)
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diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c
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index 5bb9e5656a..d8a31929b4 100644
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--- a/target/loongarch/cpu.c
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+++ b/target/loongarch/cpu.c
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@@ -554,13 +554,13 @@ static void loongarch_cpu_reset_hold(Object *obj)
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env->fcsr0 = 0x0;
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int n;
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- /* Set csr registers value after reset */
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+ /* Set csr registers value after reset, see the manual 6.4. */
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env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PLV, 0);
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env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, IE, 0);
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env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DA, 1);
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env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PG, 0);
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- env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 1);
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- env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 1);
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+ env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 0);
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+ env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 0);
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env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, FPE, 0);
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env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, SXE, 0);
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--
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2.39.1
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