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>

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index fc8637cb3cd2f85adf80daf3aec522e270cad5ea..6d3114c622d1c7f422f0a62f08306e337259caf4 100644 (file)
--- 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