forked from Mirrors/opensbi
d4f5a16598
Now that SBI v3.0 specification is frozen, change runtime SBI version implemented by OpenSBI to v3.0. Also, mark extensions defined by the SBI v3.0 specification as non-experimental. Signed-off-by: Anup Patel <apatel@ventanamicro.com> Reviewed-by: Clément Léger <cleger@rivosinc.com> Reviewed-by: Atish Patra <atishp@rivosinc.com> Link: https://lore.kernel.org/r/20250516122844.113423-1-apatel@ventanamicro.com Signed-off-by: Anup Patel <anup@brainfault.org>
75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
/*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2023 Ventana Micro Systems Inc.
|
|
*
|
|
* Author(s):
|
|
* Himanshu Chauhan <hchauhan@ventanamicro.com>
|
|
*/
|
|
|
|
#include <sbi/sbi_ecall.h>
|
|
#include <sbi/sbi_ecall_interface.h>
|
|
#include <sbi/sbi_error.h>
|
|
#include <sbi/sbi_trap.h>
|
|
#include <sbi/sbi_domain.h>
|
|
#include <sbi/sbi_dbtr.h>
|
|
|
|
static int sbi_ecall_dbtr_handler(unsigned long extid, unsigned long funcid,
|
|
struct sbi_trap_regs *regs,
|
|
struct sbi_ecall_return *out)
|
|
{
|
|
unsigned long smode = (csr_read(CSR_MSTATUS) & MSTATUS_MPP) >>
|
|
MSTATUS_MPP_SHIFT;
|
|
int ret = 0;
|
|
|
|
switch (funcid) {
|
|
case SBI_EXT_DBTR_NUM_TRIGGERS:
|
|
ret = sbi_dbtr_num_trig(regs->a0, &out->value);
|
|
break;
|
|
case SBI_EXT_DBTR_SETUP_SHMEM:
|
|
ret = sbi_dbtr_setup_shmem(sbi_domain_thishart_ptr(), smode,
|
|
regs->a0, regs->a1);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_READ:
|
|
ret = sbi_dbtr_read_trig(smode, regs->a0, regs->a1);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_INSTALL:
|
|
ret = sbi_dbtr_install_trig(smode, regs->a0, &out->value);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_UNINSTALL:
|
|
ret = sbi_dbtr_uninstall_trig(regs->a0, regs->a1);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_ENABLE:
|
|
ret = sbi_dbtr_enable_trig(regs->a0, regs->a1);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_UPDATE:
|
|
ret = sbi_dbtr_update_trig(smode, regs->a0, regs->a1);
|
|
break;
|
|
case SBI_EXT_DBTR_TRIGGER_DISABLE:
|
|
ret = sbi_dbtr_disable_trig(regs->a0, regs->a1);
|
|
break;
|
|
default:
|
|
ret = SBI_ENOTSUPP;
|
|
};
|
|
|
|
return ret;
|
|
}
|
|
|
|
struct sbi_ecall_extension ecall_dbtr;
|
|
|
|
static int sbi_ecall_dbtr_register_extensions(void)
|
|
{
|
|
if (sbi_dbtr_get_total_triggers() == 0)
|
|
return 0;
|
|
|
|
return sbi_ecall_register_extension(&ecall_dbtr);
|
|
}
|
|
|
|
struct sbi_ecall_extension ecall_dbtr = {
|
|
.name = "dbtr",
|
|
.extid_start = SBI_EXT_DBTR,
|
|
.extid_end = SBI_EXT_DBTR,
|
|
.handle = sbi_ecall_dbtr_handler,
|
|
.register_extensions = sbi_ecall_dbtr_register_extensions,
|
|
};
|