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/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2023 StarFive Technology Co., Ltd.
*
* Author: Jun Liang Tan <junliang.tan@linux.starfivetech.com>
*
*/
#include <cache.h>
#include <dubhe.h>
#include <platform_override.h>
#include <sbi/riscv_asm.h>
#include <sbi/sbi_console.h>
#include <sbi/sbi_error.h>
#include <sbi_utils/fdt/fdt_helper.h>
static void starfive_dubhe_pause_enable(void)
{
csr_set(CSR_HART_CTRL, CSR_HART_PAUSE_EN_MASK);
}
static int starfive_dubhe_extensions_init(const struct fdt_match *match,
struct sbi_hart_features *hfeatures)
{
starfive_dubhe_pause_enable();
return 0;
}
static int starfive_vendor_ext_provider(long funcid,
struct sbi_trap_regs *regs,
struct sbi_ecall_return *out,
const struct fdt_match *match)
{
int ret = 0;
switch (funcid) {
case SBI_EXT_STARFIVE_DUBHE_L2_FLUSH:
__sbi_dubhe_L2_flush_range(regs->a0, regs->a1);
break;
case SBI_EXT_STARFIVE_DUBHE_L2_INVALIDATE:
__sbi_dubhe_L2_inv_range(regs->a0, regs->a1);
break;
default:
sbi_printf("Unsupported vendor sbi call : %ld\n", funcid);
return SBI_EINVAL;
}
return ret;
}
static const struct fdt_match starfive_dubhe_match[] = {
{ .compatible = "starfive,dubhe-90" },
{ },
};
const struct platform_override starfive_dubhe = {
.match_table = starfive_dubhe_match,
.extensions_init = starfive_dubhe_extensions_init,
.vendor_ext_provider = starfive_vendor_ext_provider,
};
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