diff options
Diffstat (limited to 'lib/sbi/sbi_ecall_ipi.c')
-rw-r--r-- | lib/sbi/sbi_ecall_ipi.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/lib/sbi/sbi_ecall_ipi.c b/lib/sbi/sbi_ecall_ipi.c new file mode 100644 index 0000000..f4797e1 --- /dev/null +++ b/lib/sbi/sbi_ecall_ipi.c @@ -0,0 +1,36 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel <anup.patel@wdc.com> + * Atish Patra <atish.patra@wdc.com> + */ + +#include <sbi/sbi_error.h> +#include <sbi/sbi_ecall.h> +#include <sbi/sbi_ecall_interface.h> +#include <sbi/sbi_trap.h> +#include <sbi/sbi_ipi.h> + +static int sbi_ecall_ipi_handler(unsigned long extid, unsigned long funcid, + const struct sbi_trap_regs *regs, + unsigned long *out_val, + struct sbi_trap_info *out_trap) +{ + int ret = 0; + + if (funcid == SBI_EXT_IPI_SEND_IPI) + ret = sbi_ipi_send_smode(regs->a0, regs->a1); + else + ret = SBI_ENOTSUPP; + + return ret; +} + +struct sbi_ecall_extension ecall_ipi = { + .extid_start = SBI_EXT_IPI, + .extid_end = SBI_EXT_IPI, + .handle = sbi_ecall_ipi_handler, +}; |