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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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5
include/sbi/sbi_trap.h
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@@ -245,6 +245,11 @@ static inline bool sbi_regs_from_virt(const struct sbi_trap_regs *regs)
#endif
}
static inline int sbi_mstatus_prev_mode(unsigned long mstatus)
{
return (mstatus & MSTATUS_MPP) >> MSTATUS_MPP_SHIFT;
}
int sbi_trap_redirect(struct sbi_trap_regs *regs,
const struct sbi_trap_info *trap);