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lib: Factor-out SBI vendor extension

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This patch factor-out SBI vendor extension 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:
Anup Patel
2020-01-17 19:12:52 +05:30
committed by Anup Patel
parent 161b348e7e
commit 43ac621ecb
4 changed files with 44 additions and 27 deletions
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1
include/sbi/sbi_ecall.h
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@@ -33,6 +33,7 @@ extern struct sbi_ecall_extension ecall_legacy;
extern struct sbi_ecall_extension ecall_time; extern struct sbi_ecall_extension ecall_time;
extern struct sbi_ecall_extension ecall_rfence; extern struct sbi_ecall_extension ecall_rfence;
extern struct sbi_ecall_extension ecall_ipi; extern struct sbi_ecall_extension ecall_ipi;
extern struct sbi_ecall_extension ecall_vendor;
u16 sbi_ecall_version_major(void); u16 sbi_ecall_version_major(void);

1
lib/sbi/objects.mk
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@@ -16,6 +16,7 @@ libsbi-objs-y += sbi_console.o
libsbi-objs-y += sbi_ecall.o libsbi-objs-y += sbi_ecall.o
libsbi-objs-y += sbi_ecall_legacy.o libsbi-objs-y += sbi_ecall_legacy.o
libsbi-objs-y += sbi_ecall_replace.o libsbi-objs-y += sbi_ecall_replace.o
libsbi-objs-y += sbi_ecall_vendor.o
libsbi-objs-y += sbi_emulate_csr.o libsbi-objs-y += sbi_emulate_csr.o
libsbi-objs-y += sbi_fifo.o libsbi-objs-y += sbi_fifo.o
libsbi-objs-y += sbi_hfence.o libsbi-objs-y += sbi_hfence.o

29
lib/sbi/sbi_ecall.c
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@@ -10,8 +10,9 @@
#include <sbi/sbi_ecall.h> #include <sbi/sbi_ecall.h>
#include <sbi/sbi_ecall_interface.h> #include <sbi/sbi_ecall_interface.h>
#include <sbi/sbi_error.h> #include <sbi/sbi_error.h>
#include <sbi/sbi_platform.h> #include <sbi/sbi_trap.h>
#include <sbi/sbi_version.h> #include <sbi/sbi_version.h>
#include <sbi/riscv_asm.h>
#define SBI_ECALL_VERSION_MAJOR 0 #define SBI_ECALL_VERSION_MAJOR 0
#define SBI_ECALL_VERSION_MINOR 2 #define SBI_ECALL_VERSION_MINOR 2
@@ -92,32 +93,6 @@ static struct sbi_ecall_extension ecall_base = {
.handle = sbi_ecall_base_handler, .handle = sbi_ecall_base_handler,
}; };
static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch,
unsigned long extid,
unsigned long *out_val)
{
*out_val = sbi_platform_vendor_ext_check(sbi_platform_ptr(scratch),
extid);
return 0;
}
static int sbi_ecall_vendor_handler(struct sbi_scratch *scratch,
unsigned long extid, unsigned long funcid,
unsigned long *args, unsigned long *out_val,
struct sbi_trap_info *out_trap)
{
return sbi_platform_vendor_ext_provider(sbi_platform_ptr(scratch),
extid, funcid, args,
out_val, out_trap);
}
static struct sbi_ecall_extension ecall_vendor = {
.extid_start = SBI_EXT_VENDOR_START,
.extid_end = SBI_EXT_VENDOR_END,
.probe = sbi_ecall_vendor_probe,
.handle = sbi_ecall_vendor_handler,
};
static SBI_LIST_HEAD(ecall_exts_list); static SBI_LIST_HEAD(ecall_exts_list);
struct sbi_ecall_extension *sbi_ecall_find_extension(unsigned long extid) struct sbi_ecall_extension *sbi_ecall_find_extension(unsigned long extid)

40
lib/sbi/sbi_ecall_vendor.c Normal file
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@@ -0,0 +1,40 @@
/*
* 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_platform.h>
static int sbi_ecall_vendor_probe(struct sbi_scratch *scratch,
unsigned long extid,
unsigned long *out_val)
{
*out_val = sbi_platform_vendor_ext_check(sbi_platform_ptr(scratch),
extid);
return 0;
}
static int sbi_ecall_vendor_handler(struct sbi_scratch *scratch,
unsigned long extid, unsigned long funcid,
unsigned long *args, unsigned long *out_val,
struct sbi_trap_info *out_trap)
{
return sbi_platform_vendor_ext_provider(sbi_platform_ptr(scratch),
extid, funcid, args,
out_val, out_trap);
}
struct sbi_ecall_extension ecall_vendor = {
.extid_start = SBI_EXT_VENDOR_START,
.extid_end = SBI_EXT_VENDOR_END,
.probe = sbi_ecall_vendor_probe,
.handle = sbi_ecall_vendor_handler,
};