mirror of
https://github.com/riscv-software-src/opensbi.git
synced 2025-08-24 15:31:22 +01:00
lib: Factor-out SBI replacement extensions
This patch factor-out SBI replacement extensions (such as RFENCE, IPI, and TIME) into its own source for better modularity of SBI implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
@@ -30,6 +30,9 @@ struct sbi_ecall_extension {
|
||||
};
|
||||
|
||||
extern struct sbi_ecall_extension ecall_legacy;
|
||||
extern struct sbi_ecall_extension ecall_time;
|
||||
extern struct sbi_ecall_extension ecall_rfence;
|
||||
extern struct sbi_ecall_extension ecall_ipi;
|
||||
|
||||
u16 sbi_ecall_version_major(void);
|
||||
|
||||
|
@@ -15,6 +15,7 @@ libsbi-objs-y += riscv_locks.o
|
||||
libsbi-objs-y += sbi_console.o
|
||||
libsbi-objs-y += sbi_ecall.o
|
||||
libsbi-objs-y += sbi_ecall_legacy.o
|
||||
libsbi-objs-y += sbi_ecall_replace.o
|
||||
libsbi-objs-y += sbi_emulate_csr.o
|
||||
libsbi-objs-y += sbi_fifo.o
|
||||
libsbi-objs-y += sbi_hfence.o
|
||||
|
@@ -10,12 +10,7 @@
|
||||
#include <sbi/sbi_ecall.h>
|
||||
#include <sbi/sbi_ecall_interface.h>
|
||||
#include <sbi/sbi_error.h>
|
||||
#include <sbi/sbi_ipi.h>
|
||||
#include <sbi/sbi_platform.h>
|
||||
#include <sbi/sbi_timer.h>
|
||||
#include <sbi/sbi_tlb.h>
|
||||
#include <sbi/sbi_trap.h>
|
||||
#include <sbi/sbi_hart.h>
|
||||
#include <sbi/sbi_version.h>
|
||||
|
||||
#define SBI_ECALL_VERSION_MAJOR 0
|
||||
@@ -97,134 +92,6 @@ static struct sbi_ecall_extension ecall_base = {
|
||||
.handle = sbi_ecall_base_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_time_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, unsigned long *out_val,
|
||||
struct sbi_trap_info *out_trap)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (funcid == SBI_EXT_TIME_SET_TIMER) {
|
||||
#if __riscv_xlen == 32
|
||||
sbi_timer_event_start(scratch,
|
||||
(((u64)args[1] << 32) | (u64)args[0]));
|
||||
#else
|
||||
sbi_timer_event_start(scratch, (u64)args[0]);
|
||||
#endif
|
||||
} else
|
||||
ret = SBI_ENOTSUPP;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct sbi_ecall_extension ecall_time = {
|
||||
.extid_start = SBI_EXT_TIME,
|
||||
.extid_end = SBI_EXT_TIME,
|
||||
.handle = sbi_ecall_time_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_ipi_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, 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(scratch, args[0], args[1]);
|
||||
else
|
||||
ret = SBI_ENOTSUPP;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct sbi_ecall_extension ecall_ipi = {
|
||||
.extid_start = SBI_EXT_IPI,
|
||||
.extid_end = SBI_EXT_IPI,
|
||||
.handle = sbi_ecall_ipi_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_rfence_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, unsigned long *out_val,
|
||||
struct sbi_trap_info *out_trap)
|
||||
{
|
||||
int ret = 0;
|
||||
struct sbi_tlb_info tlb_info;
|
||||
u32 source_hart = sbi_current_hartid();
|
||||
|
||||
if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA &&
|
||||
funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID)
|
||||
if (!misa_extension('H'))
|
||||
return SBI_ENOTSUPP;
|
||||
|
||||
switch (funcid) {
|
||||
case SBI_EXT_RFENCE_REMOTE_FENCE_I:
|
||||
tlb_info.start = 0;
|
||||
tlb_info.size = 0;
|
||||
tlb_info.type = SBI_ITLB_FLUSH;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_GVMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_GVMA_VMID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VVMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VVMA_ASID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = SBI_ENOTSUPP;
|
||||
};
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static struct sbi_ecall_extension ecall_rfence = {
|
||||
.extid_start = SBI_EXT_RFENCE,
|
||||
.extid_end = SBI_EXT_RFENCE,
|
||||
.handle = sbi_ecall_rfence_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch,
|
||||
unsigned long extid,
|
||||
unsigned long *out_val)
|
||||
|
146
lib/sbi/sbi_ecall_replace.c
Normal file
146
lib/sbi/sbi_ecall_replace.c
Normal file
@@ -0,0 +1,146 @@
|
||||
/*
|
||||
* 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_ecall.h>
|
||||
#include <sbi/sbi_ecall_interface.h>
|
||||
#include <sbi/sbi_error.h>
|
||||
#include <sbi/sbi_hart.h>
|
||||
#include <sbi/sbi_ipi.h>
|
||||
#include <sbi/sbi_timer.h>
|
||||
#include <sbi/sbi_tlb.h>
|
||||
#include <sbi/riscv_asm.h>
|
||||
|
||||
static int sbi_ecall_time_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, unsigned long *out_val,
|
||||
struct sbi_trap_info *out_trap)
|
||||
{
|
||||
int ret = 0;
|
||||
|
||||
if (funcid == SBI_EXT_TIME_SET_TIMER) {
|
||||
#if __riscv_xlen == 32
|
||||
sbi_timer_event_start(scratch,
|
||||
(((u64)args[1] << 32) | (u64)args[0]));
|
||||
#else
|
||||
sbi_timer_event_start(scratch, (u64)args[0]);
|
||||
#endif
|
||||
} else
|
||||
ret = SBI_ENOTSUPP;
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
struct sbi_ecall_extension ecall_time = {
|
||||
.extid_start = SBI_EXT_TIME,
|
||||
.extid_end = SBI_EXT_TIME,
|
||||
.handle = sbi_ecall_time_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_rfence_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, unsigned long *out_val,
|
||||
struct sbi_trap_info *out_trap)
|
||||
{
|
||||
int ret = 0;
|
||||
struct sbi_tlb_info tlb_info;
|
||||
u32 source_hart = sbi_current_hartid();
|
||||
|
||||
if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA &&
|
||||
funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID)
|
||||
if (!misa_extension('H'))
|
||||
return SBI_ENOTSUPP;
|
||||
|
||||
switch (funcid) {
|
||||
case SBI_EXT_RFENCE_REMOTE_FENCE_I:
|
||||
tlb_info.start = 0;
|
||||
tlb_info.size = 0;
|
||||
tlb_info.type = SBI_ITLB_FLUSH;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_GVMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_GVMA_VMID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VVMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VVMA_ASID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VMA;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID:
|
||||
tlb_info.start = (unsigned long)args[2];
|
||||
tlb_info.size = (unsigned long)args[3];
|
||||
tlb_info.asid = (unsigned long)args[4];
|
||||
tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
|
||||
tlb_info.shart_mask = 1UL << source_hart;
|
||||
ret = sbi_tlb_request(scratch, args[0], args[1], &tlb_info);
|
||||
break;
|
||||
|
||||
default:
|
||||
ret = SBI_ENOTSUPP;
|
||||
};
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
struct sbi_ecall_extension ecall_rfence = {
|
||||
.extid_start = SBI_EXT_RFENCE,
|
||||
.extid_end = SBI_EXT_RFENCE,
|
||||
.handle = sbi_ecall_rfence_handler,
|
||||
};
|
||||
|
||||
static int sbi_ecall_ipi_handler(struct sbi_scratch *scratch,
|
||||
unsigned long extid, unsigned long funcid,
|
||||
unsigned long *args, 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(scratch, args[0], args[1]);
|
||||
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,
|
||||
};
|
Reference in New Issue
Block a user