On Fri, Jan 10, 2025 at 12:12:43PM +0100, Clément Léger wrote:
> Add SBI SSE extension definitions in sbi.h
>
> Signed-off-by: Clément Léger <cleger@xxxxxxxxxxxx>
> ---
> lib/riscv/asm/sbi.h | 89 +++++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 89 insertions(+)
>
> diff --git a/lib/riscv/asm/sbi.h b/lib/riscv/asm/sbi.h
> index 98a9b097..83bdfb82 100644
> --- a/lib/riscv/asm/sbi.h
> +++ b/lib/riscv/asm/sbi.h
> @@ -11,6 +11,11 @@
> #define SBI_ERR_ALREADY_AVAILABLE -6
> #define SBI_ERR_ALREADY_STARTED -7
> #define SBI_ERR_ALREADY_STOPPED -8
> +#define SBI_ERR_NO_SHMEM -9
> +#define SBI_ERR_INVALID_STATE -10
> +#define SBI_ERR_BAD_RANGE -11
> +#define SBI_ERR_TIMEOUT -12
> +#define SBI_ERR_IO -13
We need SBI_ERR_DENIED_LOCKED too, but I guess that can be added with the
FWFT extension.
>
> #ifndef __ASSEMBLY__
> #include <cpumask.h>
> @@ -23,6 +28,7 @@ enum sbi_ext_id {
> SBI_EXT_SRST = 0x53525354,
> SBI_EXT_DBCN = 0x4442434E,
> SBI_EXT_SUSP = 0x53555350,
> + SBI_EXT_SSE = 0x535345,
> };
>
> enum sbi_ext_base_fid {
> @@ -71,6 +77,89 @@ enum sbi_ext_dbcn_fid {
> SBI_EXT_DBCN_CONSOLE_WRITE_BYTE,
> };
>
> +enum sbi_ext_sse_fid {
> + SBI_EXT_SSE_READ_ATTRS = 0,
> + SBI_EXT_SSE_WRITE_ATTRS,
> + SBI_EXT_SSE_REGISTER,
> + SBI_EXT_SSE_UNREGISTER,
> + SBI_EXT_SSE_ENABLE,
> + SBI_EXT_SSE_DISABLE,
> + SBI_EXT_SSE_COMPLETE,
> + SBI_EXT_SSE_INJECT,
> + SBI_EXT_SSE_HART_UNMASK,
> + SBI_EXT_SSE_HART_MASK,
> +};
> +
> +/* SBI SSE Event Attributes. */
> +enum sbi_sse_attr_id {
> + SBI_SSE_ATTR_STATUS = 0x00000000,
> + SBI_SSE_ATTR_PRIORITY = 0x00000001,
> + SBI_SSE_ATTR_CONFIG = 0x00000002,
> + SBI_SSE_ATTR_PREFERRED_HART = 0x00000003,
> + SBI_SSE_ATTR_ENTRY_PC = 0x00000004,
> + SBI_SSE_ATTR_ENTRY_ARG = 0x00000005,
> + SBI_SSE_ATTR_INTERRUPTED_SEPC = 0x00000006,
> + SBI_SSE_ATTR_INTERRUPTED_FLAGS = 0x00000007,
> + SBI_SSE_ATTR_INTERRUPTED_A6 = 0x00000008,
> + SBI_SSE_ATTR_INTERRUPTED_A7 = 0x00000009,
> +};
> +
> +#define SBI_SSE_ATTR_STATUS_STATE_OFFSET 0
> +#define SBI_SSE_ATTR_STATUS_STATE_MASK 0x3
> +#define SBI_SSE_ATTR_STATUS_PENDING_OFFSET 2
> +#define SBI_SSE_ATTR_STATUS_INJECT_OFFSET 3
> +
> +#define SBI_SSE_ATTR_CONFIG_ONESHOT BIT(0)
> +
> +#define SBI_SSE_ATTR_INTERRUPTED_FLAGS_SSTATUS_SPP BIT(0)
> +#define SBI_SSE_ATTR_INTERRUPTED_FLAGS_SSTATUS_SPIE BIT(1)
> +#define SBI_SSE_ATTR_INTERRUPTED_FLAGS_HSTATUS_SPV BIT(2)
> +#define SBI_SSE_ATTR_INTERRUPTED_FLAGS_HSTATUS_SPVP BIT(3)
> +
> +enum sbi_sse_state {
> + SBI_SSE_STATE_UNUSED = 0,
> + SBI_SSE_STATE_REGISTERED = 1,
> + SBI_SSE_STATE_ENABLED = 2,
> + SBI_SSE_STATE_RUNNING = 3,
> +};
> +
> +/* SBI SSE Event IDs. */
> +/* Range 0x00000000 - 0x0000ffff */
> +#define SBI_SSE_EVENT_LOCAL_HIGH_PRIO_RAS 0x00000000
> +#define SBI_SSE_EVENT_LOCAL_DOUBLE_TRAP 0x00000001
> +#define SBI_SSE_EVENT_LOCAL_PLAT_0_START 0x00004000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_0_END 0x00007fff
> +
> +#define SBI_SSE_EVENT_GLOBAL_HIGH_PRIO_RAS 0x00008000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_0_START 0x0000c000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_0_END 0x0000ffff
> +
> +/* Range 0x00010000 - 0x0001ffff */
> +#define SBI_SSE_EVENT_LOCAL_PMU_OVERFLOW 0x00010000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_1_START 0x00014000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_1_END 0x00017fff
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_1_START 0x0001c000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_1_END 0x0001ffff
> +
> +/* Range 0x00100000 - 0x0010ffff */
> +#define SBI_SSE_EVENT_LOCAL_LOW_PRIO_RAS 0x00100000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_2_START 0x00104000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_2_END 0x00107fff
> +#define SBI_SSE_EVENT_GLOBAL_LOW_PRIO_RAS 0x00108000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_2_START 0x0010c000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_2_END 0x0010ffff
> +
> +/* Range 0xffff0000 - 0xffffffff */
> +#define SBI_SSE_EVENT_LOCAL_SOFTWARE 0xffff0000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_3_START 0xffff4000
> +#define SBI_SSE_EVENT_LOCAL_PLAT_3_END 0xffff7fff
> +#define SBI_SSE_EVENT_GLOBAL_SOFTWARE 0xffff8000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_3_START 0xffffc000
> +#define SBI_SSE_EVENT_GLOBAL_PLAT_3_END 0xffffffff
> +
> +#define SBI_SSE_EVENT_PLATFORM_BIT BIT(14)
> +#define SBI_SSE_EVENT_GLOBAL_BIT BIT(15)
> +
> struct sbiret {
> long error;
> long value;
> --
> 2.47.1
>
Reviewed-by: Andrew Jones <andrew.jones@xxxxxxxxx>
