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lib: sbi: factorize previous mode computation

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Previous privilege mode retrieval from mstatus is done at different
places, factorize it rather than copy/pasting it again.

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
This commit is contained in:
Clément Léger
2024-10-18 10:40:03 +02:00
committed by Anup Patel
parent daa282573f
commit 80656bdb1d
6 changed files with 13 additions and 8 deletions
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4
lib/sbi/sbi_emulate_csr.c
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@@ -46,7 +46,7 @@ int sbi_emulate_csr_read(int csr_num, struct sbi_trap_regs *regs,
{
int ret = 0;
struct sbi_scratch *scratch = sbi_scratch_thishart_ptr();
ulong prev_mode = (regs->mstatus & MSTATUS_MPP) >> MSTATUS_MPP_SHIFT;
ulong prev_mode = sbi_mstatus_prev_mode(regs->mstatus);
bool virt = sbi_regs_from_virt(regs);
switch (csr_num) {
@@ -152,7 +152,7 @@ int sbi_emulate_csr_write(int csr_num, struct sbi_trap_regs *regs,
ulong csr_val)
{
int ret = 0;
ulong prev_mode = (regs->mstatus & MSTATUS_MPP) >> MSTATUS_MPP_SHIFT;
ulong prev_mode = sbi_mstatus_prev_mode(regs->mstatus);
bool virt = sbi_regs_from_virt(regs);
switch (csr_num) {