| Message ID | 20240705021839.1004374-2-gaosong@loongson.cn |
|---|---|
| State | New |
| Headers | show |
| Series | [v2,1/2] target/loongarch: Set CSR_PRCFG1 and CSR_PRCFG2 values | expand |
On 2024/7/5 上午10:18, Song Gao wrote: > After cpu_reset, DATF in CSR_CRMD is 0, DATM is 0. > See the manual[1] 6.4. > > [1]: https://github.com/loongson/LoongArch-Documentation/releases/download/2023.04.20/LoongArch-Vol1-v1.10-EN.pdf > > Signed-off-by: Song Gao <gaosong@loongson.cn> > --- > target/loongarch/cpu.c | 6 +++--- > 1 file changed, 3 insertions(+), 3 deletions(-) > > diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c > index 55d468af3c..763cde41c3 100644 > --- a/target/loongarch/cpu.c > +++ b/target/loongarch/cpu.c > @@ -523,13 +523,13 @@ static void loongarch_cpu_reset_hold(Object *obj, ResetType type) > env->fcsr0 = 0x0; > > int n; > - /* Set csr registers value after reset */ > + /* Set csr registers value after reset, see the manual 6.4. */ > env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PLV, 0); > env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, IE, 0); > env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DA, 1); > env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PG, 0); > - env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 1); > - env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 1); > + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 0); > + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 0); > > env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, FPE, 0); > env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, SXE, 0); > Reviewed-by: Bibo Mao <maobibo@loongson.cn>
diff --git a/target/loongarch/cpu.c b/target/loongarch/cpu.c index 55d468af3c..763cde41c3 100644 --- a/target/loongarch/cpu.c +++ b/target/loongarch/cpu.c @@ -523,13 +523,13 @@ static void loongarch_cpu_reset_hold(Object *obj, ResetType type) env->fcsr0 = 0x0; int n; - /* Set csr registers value after reset */ + /* Set csr registers value after reset, see the manual 6.4. */ env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PLV, 0); env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, IE, 0); env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DA, 1); env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, PG, 0); - env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 1); - env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 1); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATF, 0); + env->CSR_CRMD = FIELD_DP64(env->CSR_CRMD, CSR_CRMD, DATM, 0); env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, FPE, 0); env->CSR_EUEN = FIELD_DP64(env->CSR_EUEN, CSR_EUEN, SXE, 0);
After cpu_reset, DATF in CSR_CRMD is 0, DATM is 0. See the manual[1] 6.4. [1]: https://github.com/loongson/LoongArch-Documentation/releases/download/2023.04.20/LoongArch-Vol1-v1.10-EN.pdf Signed-off-by: Song Gao <gaosong@loongson.cn> --- target/loongarch/cpu.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)