From 1e32715602d3da294eaf4e70542c4be65e77a839 Mon Sep 17 00:00:00 2001
From: Bin Meng <bmeng.cn@gmail.com>
Date: Mon, 9 Mar 2020 19:35:29 -0700
Subject: [PATCH] riscv: Add SBI v0.2 extension definitions
Few v0.1 SBI calls are being replaced by new SBI calls that follows
v0.2 calling convention.
This patch just defines these new extensions.
This commit is inspired from Linux kernel patch:
https://patchwork.kernel.org/patch/11407359/
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Pragnesh Patel <pragnesh.patel@sifive.com>
---
arch/riscv/include/asm/sbi.h | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index fc8637cb3c..6d3114c622 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -22,6 +22,9 @@ enum sbi_ext_id {
SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7,
SBI_EXT_0_1_SHUTDOWN = 0x8,
SBI_EXT_BASE = 0x10,
+ SBI_EXT_TIME = 0x54494D45,
+ SBI_EXT_IPI = 0x735049,
+ SBI_EXT_RFENCE = 0x52464E43,
};
enum sbi_ext_base_fid {
@@ -34,6 +37,20 @@ enum sbi_ext_base_fid {
SBI_EXT_BASE_GET_MIMPID,
};
+enum sbi_ext_time_fid {
+ SBI_EXT_TIME_SET_TIMER = 0,
+};
+
+enum sbi_ext_ipi_fid {
+ SBI_EXT_IPI_SEND_IPI = 0,
+};
+
+enum sbi_ext_rfence_fid {
+ SBI_EXT_RFENCE_REMOTE_FENCE_I = 0,
+ SBI_EXT_RFENCE_REMOTE_SFENCE_VMA,
+ SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID,
+};
+
#define SBI_SPEC_VERSION_DEFAULT 0x1
#define SBI_SPEC_VERSION_MAJOR_SHIFT 24
#define SBI_SPEC_VERSION_MAJOR_MASK 0x7f
--
2.39.5