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platform: generic: andes: add a new Andes SBI call to set up a PMA entry

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Implement a new Andes SBI call, which is to set up a NAPOT region
with given memory attributes.

Signed-off-by: Ben Zong-You Xie <ben717@andestech.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Ben Zong-You Xie
2024-07-23 15:57:27 +08:00
committed by Anup Patel
parent 4a72abb5f4
commit aa56084c4d
3 changed files with 138 additions and 5 deletions
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11
platform/generic/andes/andes_sbi.c
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@@ -13,6 +13,7 @@ enum sbi_ext_andes_fid {
SBI_EXT_ANDES_FID0 = 0, /* Reserved for future use */
SBI_EXT_ANDES_IOCP_SW_WORKAROUND,
SBI_EXT_ANDES_PMA_PROBE,
SBI_EXT_ANDES_PMA_SET,
};
static bool andes_cache_controllable(void)
@@ -39,6 +40,8 @@ int andes_sbi_vendor_ext_provider(long funcid,
struct sbi_ecall_return *out,
const struct fdt_match *match)
{
int ret = 0;
switch (funcid) {
case SBI_EXT_ANDES_IOCP_SW_WORKAROUND:
out->value = andes_apply_iocp_sw_workaround();
@@ -46,10 +49,12 @@ int andes_sbi_vendor_ext_provider(long funcid,
case SBI_EXT_ANDES_PMA_PROBE:
out->value = andes_sbi_probe_pma();
break;
case SBI_EXT_ANDES_PMA_SET:
ret = andes_sbi_set_pma(regs->a0, regs->a1, regs->a2);
break;
default:
return SBI_EINVAL;
ret = SBI_ENOTSUPP;
}
return 0;
return ret;
}