From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mayuresh Chitale Date: Mon, 21 Mar 2022 10:45:28 +0530 Subject: [RFC PATCH v1 3/3] lib: sbi: configure mstateen In-Reply-To: <20220321051528.20143-1-mchitale@ventanamicro.com> References: <20220321051528.20143-1-mchitale@ventanamicro.com> Message-ID: <20220321051528.20143-4-mchitale@ventanamicro.com> List-Id: To: opensbi@lists.infradead.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit When mstateen registers are implemented, the AIA related configurations need to be done in mstateen for the IMSIC initialization to succeed. Signed-off-by: Mayuresh Chitale --- lib/sbi/sbi_hart.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/lib/sbi/sbi_hart.c b/lib/sbi/sbi_hart.c index 9d0c435..f5c44e1 100644 --- a/lib/sbi/sbi_hart.c +++ b/lib/sbi/sbi_hart.c @@ -80,6 +80,15 @@ static void mstatus_init(struct sbi_scratch *scratch) mstateen_val |= (1UL << SMSTATEEN0_HSENVCFG); else mstateen_val &= ~(1UL << SMSTATEEN0_HSENVCFG); + + if (sbi_hart_has_feature(scratch, SBI_HART_HAS_AIA)) + mstateen_val |= (1UL << SMSTATEEN0_AIA | + 1UL << SMSTATEEN0_SVSLCT | + 1UL << SMSTATEEN0_IMSIC); + else + mstateen_val &= ~(1UL << SMSTATEEN0_AIA | + 1UL << SMSTATEEN0_SVSLCT | + 1UL << SMSTATEEN0_IMSIC); csr_write(CSR_MSTATEEN0, mstateen_val); } -- 2.17.1