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riscv: Add SBI v0.2 extension definitions

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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>
This commit is contained in:
Bin Meng 2020-03-09 19:35:29 -07:00 committed by Andes
parent f58fc34a2b
commit 1e32715602
1 changed files with 17 additions and 0 deletions
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17
arch/riscv/include/asm/sbi.h
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@ -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