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lib: Move ECALL defines to sbi_ecall_interface.h

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This patch moves all ECALL defines to sbi_ecall_interface.h so
that it can be shared with firmware payloads.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
This commit is contained in:
Anup Patel
2018-12-26 09:42:26 +05:30
committed by Anup Patel
parent b5ae8e8a65
commit b46970b47e
2 changed files with 40 additions and 10 deletions
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39
include/sbi/sbi_ecall_interface.h Normal file
View File

@@ -0,0 +1,39 @@
/*
* Copyright (c) 2018 Western Digital Corporation or its affiliates.
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#ifndef __SBI_ECALL_INTERFACE_H__
#define __SBI_ECALL_INTERFACE_H__
#define SBI_ECALL_SET_TIMER 0
#define SBI_ECALL_CONSOLE_PUTCHAR 1
#define SBI_ECALL_CONSOLE_GETCHAR 2
#define SBI_ECALL_CLEAR_IPI 3
#define SBI_ECALL_SEND_IPI 4
#define SBI_ECALL_REMOTE_FENCE_I 5
#define SBI_ECALL_REMOTE_SFENCE_VMA 6
#define SBI_ECALL_REMOTE_SFENCE_VMA_ASID 7
#define SBI_ECALL_SHUTDOWN 8
#define SBI_ECALL(__num, __a0, __a1, __a2) ({ \
register unsigned long a0 asm ("a0") = (unsigned long)(__a0); \
register unsigned long a1 asm ("a1") = (unsigned long)(__a1); \
register unsigned long a2 asm ("a2") = (unsigned long)(__a2); \
register unsigned long a7 asm ("a7") = (unsigned long)(__num);\
asm volatile ("ecall" \
: "+r" (a0) \
: "r" (a1), "r" (a2), "r" (a7) \
: "memory"); \
a0; \
})
#define SBI_ECALL_0(__num) SBI_ECALL(__num, 0, 0, 0)
#define SBI_ECALL_1(__num, __a0) SBI_ECALL(__num, __a0, 0, 0)
#define SBI_ECALL_2(__num, __a0, __a1) SBI_ECALL(__num, __a0, __a1, 0)
#endif

11
lib/sbi_ecall.c
View File

@@ -9,6 +9,7 @@
#include <sbi/sbi_console.h>
#include <sbi/sbi_ecall.h>
#include <sbi/sbi_ecall_interface.h>
#include <sbi/sbi_error.h>
#include <sbi/sbi_ipi.h>
#include <sbi/sbi_system.h>
@@ -18,16 +19,6 @@
#define SBI_ECALL_VERSION_MAJOR 0
#define SBI_ECALL_VERSION_MINOR 1
#define SBI_ECALL_SET_TIMER 0
#define SBI_ECALL_CONSOLE_PUTCHAR 1
#define SBI_ECALL_CONSOLE_GETCHAR 2
#define SBI_ECALL_CLEAR_IPI 3
#define SBI_ECALL_SEND_IPI 4
#define SBI_ECALL_REMOTE_FENCE_I 5
#define SBI_ECALL_REMOTE_SFENCE_VMA 6
#define SBI_ECALL_REMOTE_SFENCE_VMA_ASID 7
#define SBI_ECALL_SHUTDOWN 8
u16 sbi_ecall_version_major(void)
{
return SBI_ECALL_VERSION_MAJOR;