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lib: sbi: Simplify parameters of sbi_illegal_insn_handler()

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The struct sbi_trap_context already has the information needed by
sbi_illegal_insn_handler() so directly pass struct sbi_trap_context
pointer to this function.

Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Samuel Holland <samuel.holland@sifive.com>
Tested-by: Samuel Holland <samuel.holland@sifive.com>
This commit is contained in:
Anup Patel
2024-03-11 15:54:56 +05:30
committed by Anup Patel
parent fea33a9334
commit f414cf931e
3 changed files with 7 additions and 6 deletions
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4
include/sbi/sbi_illegal_insn.h
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@@ -12,8 +12,8 @@
#include <sbi/sbi_types.h> #include <sbi/sbi_types.h>
struct sbi_trap_regs; struct sbi_trap_context;
int sbi_illegal_insn_handler(ulong insn, struct sbi_trap_regs *regs); int sbi_illegal_insn_handler(struct sbi_trap_context *tcntx);
#endif #endif

7
lib/sbi/sbi_illegal_insn.c
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@@ -136,8 +136,10 @@ static const illegal_insn_func illegal_insn_table[32] = {
truly_illegal_insn /* 31 */ truly_illegal_insn /* 31 */
}; };
int sbi_illegal_insn_handler(ulong insn, struct sbi_trap_regs *regs) int sbi_illegal_insn_handler(struct sbi_trap_context *tcntx)
{ {
struct sbi_trap_regs *regs = &tcntx->regs;
ulong insn = tcntx->trap.tval;
struct sbi_trap_info uptrap; struct sbi_trap_info uptrap;
/* /*
@@ -154,9 +156,8 @@ int sbi_illegal_insn_handler(ulong insn, struct sbi_trap_regs *regs)
sbi_pmu_ctr_incr_fw(SBI_PMU_FW_ILLEGAL_INSN); sbi_pmu_ctr_incr_fw(SBI_PMU_FW_ILLEGAL_INSN);
if (unlikely((insn & 3) != 3)) { if (unlikely((insn & 3) != 3)) {
insn = sbi_get_insn(regs->mepc, &uptrap); insn = sbi_get_insn(regs->mepc, &uptrap);
if (uptrap.cause) { if (uptrap.cause)
return sbi_trap_redirect(regs, &uptrap); return sbi_trap_redirect(regs, &uptrap);
}
if ((insn & 3) != 3) if ((insn & 3) != 3)
return truly_illegal_insn(insn, regs); return truly_illegal_insn(insn, regs);
} }

2
lib/sbi/sbi_trap.c
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@@ -285,7 +285,7 @@ struct sbi_trap_context *sbi_trap_handler(struct sbi_trap_context *tcntx)
switch (mcause) { switch (mcause) {
case CAUSE_ILLEGAL_INSTRUCTION: case CAUSE_ILLEGAL_INSTRUCTION:
rc = sbi_illegal_insn_handler(tcntx->trap.tval, regs); rc = sbi_illegal_insn_handler(tcntx);
msg = "illegal instruction handler failed"; msg = "illegal instruction handler failed";
break; break;
case CAUSE_MISALIGNED_LOAD: case CAUSE_MISALIGNED_LOAD: