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authorQinglin Pan <panqinglin2020@iscas.ac.cn>2022-01-27 10:48:43 +0800
committerPalmer Dabbelt <palmer@rivosinc.com>2022-02-14 16:32:45 -0800
commit011f09d1205285b215003a6c65408609ef78abac (patch)
treee26e022ee042bd8d8a41eb244355017bae2d6da6 /arch/riscv/include/asm/csr.h
parent677b9eb8810edc6c616a699018a83e24ed0cccab (diff)
downloadlinux-next-011f09d1205285b215003a6c65408609ef78abac.tar.gz
riscv: mm: Set sv57 on defaultly
This patch sets sv57 on defaultly if CONFIG_64BIT. And do fallback to try to set sv48 on boot time if sv57 is not supported in current hardware. Signed-off-by: Qinglin Pan <panqinglin2020@iscas.ac.cn> Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
Diffstat (limited to 'arch/riscv/include/asm/csr.h')
-rw-r--r--arch/riscv/include/asm/csr.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index ae711692eec9..299abdef0cd6 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -47,6 +47,7 @@
#define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL)
#define SATP_MODE_39 _AC(0x8000000000000000, UL)
#define SATP_MODE_48 _AC(0x9000000000000000, UL)
+#define SATP_MODE_57 _AC(0xa000000000000000, UL)
#define SATP_ASID_BITS 16
#define SATP_ASID_SHIFT 44
#define SATP_ASID_MASK _AC(0xFFFF, UL)