On Sun, Aug 11, 2024 at 01:57:42AM GMT, James Raphael Tiovalen wrote:
> Add IPI EID and FID constants and a helper function to perform the IPI
> SBI ecall.
>
> Signed-off-by: James Raphael Tiovalen <jamestiotio@xxxxxxxxx>
> ---
> lib/riscv/asm/sbi.h | 5 +++++
> riscv/sbi.c | 5 +++++
> 2 files changed, 10 insertions(+)
>
> diff --git a/lib/riscv/asm/sbi.h b/lib/riscv/asm/sbi.h
> index 73ab5438..6b485dd3 100644
> --- a/lib/riscv/asm/sbi.h
> +++ b/lib/riscv/asm/sbi.h
> @@ -17,6 +17,7 @@
> enum sbi_ext_id {
> SBI_EXT_BASE = 0x10,
> SBI_EXT_TIME = 0x54494d45,
> + SBI_EXT_IPI = 0x735049,
> SBI_EXT_HSM = 0x48534d,
> SBI_EXT_SRST = 0x53525354,
> };
> @@ -42,6 +43,10 @@ enum sbi_ext_time_fid {
> SBI_EXT_TIME_SET_TIMER = 0,
> };
>
> +enum sbi_ext_ipi_fid {
> + SBI_EXT_IPI_SEND_IPI = 0,
> +};
> +
> struct sbiret {
> long error;
> long value;
> diff --git a/riscv/sbi.c b/riscv/sbi.c
> index 2438c497..08bd6a95 100644
> --- a/riscv/sbi.c
> +++ b/riscv/sbi.c
> @@ -32,6 +32,11 @@ static struct sbiret __time_sbi_ecall(unsigned long stime_value)
> return sbi_ecall(SBI_EXT_TIME, SBI_EXT_TIME_SET_TIMER, stime_value, 0, 0, 0, 0, 0);
> }
>
> +static struct sbiret __ipi_sbi_ecall(unsigned long hart_mask, unsigned long hart_mask_base)
> +{
> + return sbi_ecall(SBI_EXT_IPI, SBI_EXT_IPI_SEND_IPI, hart_mask, hart_mask_base, 0, 0, 0, 0);
> +}
This will likely come in handy for other tests. Let's add it with the name
sbi_send_ipi() to lib/riscv/sbi.c instead.
Thanks,
drew
> +
> static bool env_or_skip(const char *env)
> {
> if (!getenv(env)) {
> --
> 2.43.0
>
>
> --
> kvm-riscv mailing list
> kvm-riscv@xxxxxxxxxxxxxxxxxxx
> http://lists.infradead.org/mailman/listinfo/kvm-riscv
