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| author | Ronald G Minnich <rminnich@gmail.com> | 2024-03-15 12:23:07 -0700 |
|---|---|---|
| committer | ron minnich <rminnich@gmail.com> | 2024-03-19 03:07:26 +0000 |
| commit | f95565311adfd98108a4ece9a2df5de56a3c890d (patch) | |
| tree | b1c99f0ebd8cf89ee1368f70e1ac15b3369b0be2 /src/arch | |
| parent | 965db6242998f53d82b33bb3d399ef884332bed5 (diff) | |
arch/riscv: add constants for Base Extension
Get used to this rate of change, SBI adds one new function a month,
on average, for the last 7 years.
Signed-off-by: Ronald G Minnich <rminnich@gmail.com>
Change-Id: Iaad763464678d1921dfefdbee1e39fba2fe5585a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81286
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Maximilian Brune <maximilian.brune@9elements.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
Diffstat (limited to 'src/arch')
| -rw-r--r-- | src/arch/riscv/include/sbi.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/src/arch/riscv/include/sbi.h b/src/arch/riscv/include/sbi.h index 8c526fcd81..9f8e4105c0 100644 --- a/src/arch/riscv/include/sbi.h +++ b/src/arch/riscv/include/sbi.h @@ -13,6 +13,19 @@ #define SBI_REMOTE_SFENCE_VMA_ASID 7 #define SBI_SHUTDOWN 8 +// Here begins the complex set of things added by +// later SBI. Unlike the original design, these +// require bits of state to be maintained in SBI. +// Disappointing! +#define SBI_BASE_EXTENSION 0x10 +# define SBI_GET_SBI_SPEC_VERSION 0 +# define SBI_GET_SBI_IMPL_ID 1 +# define SBI_GET_SBI_IMPL_VERSION 2 +# define SBI_PROBE_EXTENSION 3 +# define SBI_GET_MVENDORID 4 +# define SBI_GET_MARCHID 5 +# define SBI_GET_MIMPID 6 + #define SBI_ENOSYS 38 #define IPI_SOFT 1 |