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lib: sbi_ecall: Remove mcause, scratch and hartid parameters

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We remove mcause, scratch and hartid parameters from various
functions for ecall handling because we can always get current
HART id and current scratch pointer using just one CSR access.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel authored and Anup Patel committed 2020-03-28 13:32:20 +05:30
1 parent fe37d7da29
commit 7487116b41
9 files changed
+33 -39
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lib/sbi/sbi_ecall_base.c
+4 -7
View File
@@ -14,9 +14,7 @@
#include <sbi/sbi_version.h>
#include <sbi/riscv_asm.h>
static int sbi_ecall_base_probe(struct sbi_scratch *scratch,
unsigned long extid,
unsigned long *out_val)
static int sbi_ecall_base_probe(unsigned long extid, unsigned long *out_val)
{
struct sbi_ecall_extension *ext;
@@ -27,14 +25,13 @@ static int sbi_ecall_base_probe(struct sbi_scratch *scratch,
}
if (ext->probe)
return ext->probe(scratch, extid, out_val);
return ext->probe(extid, out_val);
*out_val = 1;
return 0;
}
static int sbi_ecall_base_handler(struct sbi_scratch *scratch,
unsigned long extid, unsigned long funcid,
static int sbi_ecall_base_handler(unsigned long extid, unsigned long funcid,
unsigned long *args, unsigned long *out_val,
struct sbi_trap_info *out_trap)
{
@@ -64,7 +61,7 @@ static int sbi_ecall_base_handler(struct sbi_scratch *scratch,
*out_val = csr_read(CSR_MIMPID);
break;
case SBI_EXT_BASE_PROBE_EXT:
ret = sbi_ecall_base_probe(scratch, args[0], out_val);
ret = sbi_ecall_base_probe(args[0], out_val);
break;
default:
ret = SBI_ENOTSUPP;