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| author |   Atish Patra <atish.patra@wdc.com> | 2020-03-17 18:11:35 -0700 |
|---|---|---|
| committer |   Palmer Dabbelt <palmerdabbelt@google.com> | 2020-03-31 11:25:29 -0700 |
| commit | b9dcd9e415872ae29f87667d23c8a8b946d24611 (patch) | |
| tree | a3d47ede25deecc7f672979fd539a7e0789c48f2 /arch/riscv/kernel/setup.c | |
| parent | RISC-V: Mark existing SBI as 0.1 SBI. (diff) | |
| download | linux-dev-b9dcd9e415872ae29f87667d23c8a8b946d24611.tar.xz linux-dev-b9dcd9e415872ae29f87667d23c8a8b946d24611.zip | |
RISC-V: Add basic support for SBI v0.2
The SBI v0.2 introduces a base extension which is backward compatible
with v0.1. Implement all helper functions and minimum required SBI
calls from v0.2 for now. All other base extension function will be
added later as per need.
As v0.2 calling convention is backward compatible with v0.1, remove
the v0.1 helper functions and just use v0.2 calling convention.
Signed-off-by: Atish Patra <atish.patra@wdc.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Reviewed-by: Palmer Dabbelt <palmerdabbelt@google.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
Diffstat (limited to 'arch/riscv/kernel/setup.c')
| -rw-r--r-- | arch/riscv/kernel/setup.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/riscv/kernel/setup.c b/arch/riscv/kernel/setup.c index cb836fcc6118..07f4e7503223 100644 --- a/arch/riscv/kernel/setup.c +++ b/arch/riscv/kernel/setup.c @@ -22,6 +22,7 @@ #include <asm/sections.h> #include <asm/pgtable.h> #include <asm/smp.h> +#include <asm/sbi.h> #include <asm/tlbflush.h> #include <asm/thread_info.h> #include <asm/kasan.h> @@ -83,6 +84,10 @@ void __init setup_arch(char **cmdline_p) kasan_init(); #endif +#if IS_ENABLED(CONFIG_RISCV_SBI) + sbi_init(); +#endif + #ifdef CONFIG_SMP setup_smp(); #endif |