From d44568a0f2e6301d3ad77a48370b0bfef4bfe5a0 Mon Sep 17 00:00:00 2001 From: Mayuresh Chitale Date: Mon, 11 Apr 2022 08:34:10 +0530 Subject: lib: sbi: Detect Smstateen CSRs at boot-time Extend HART feature detection to discover Smstateen CSRs at boot-time and configure mstateen envcfg bit depending on availability of menvcfg CSR. Signed-off-by: Mayuresh Chitale Reviewed-by: Xiang W Reviewed-by: Anup Patel --- include/sbi/sbi_hart.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/sbi/sbi_hart.h b/include/sbi/sbi_hart.h index 57f80bc..be3ad9f 100644 --- a/include/sbi/sbi_hart.h +++ b/include/sbi/sbi_hart.h @@ -28,9 +28,11 @@ enum sbi_hart_features { SBI_HART_HAS_AIA = (1 << 5), /** HART has menvcfg CSR */ SBI_HART_HAS_MENVCFG = (1 << 6), + /** HART has mstateen CSR **/ + SBI_HART_HAS_SMSTATEEN = (1 << 7), /** Last index of Hart features*/ - SBI_HART_HAS_LAST_FEATURE = SBI_HART_HAS_MENVCFG, + SBI_HART_HAS_LAST_FEATURE = SBI_HART_HAS_SMSTATEEN, }; struct sbi_scratch; -- cgit v1.2.3