diff options
Diffstat (limited to 'arch/mips/math-emu/cp1emu.c')
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 7a4727795a70..9dfcd7fc1bc3 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -584,11 +584,7 @@ static int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, if (insn.i_format.rs == bc_op) { preempt_disable(); if (is_fpu_owner()) - asm volatile( - ".set push\n" - "\t.set mips1\n" - "\tcfc1\t%0,$31\n" - "\t.set pop" : "=r" (fcr31)); + fcr31 = read_32bit_cp1_register(CP1_STATUS); else fcr31 = current->thread.fpu.fcr31; preempt_enable(); @@ -647,9 +643,14 @@ static inline int cop1_64bit(struct pt_regs *xcp) return !test_thread_flag(TIF_32BIT_FPREGS); } +static inline bool hybrid_fprs(void) +{ + return test_thread_flag(TIF_HYBRID_FPREGS); +} + #define SIFROMREG(si, x) \ do { \ - if (cop1_64bit(xcp)) \ + if (cop1_64bit(xcp) && !hybrid_fprs()) \ (si) = (int)get_fpr32(&ctx->fpr[x], 0); \ else \ (si) = (int)get_fpr32(&ctx->fpr[(x) & ~1], (x) & 1); \ @@ -657,7 +658,7 @@ do { \ #define SITOREG(si, x) \ do { \ - if (cop1_64bit(xcp)) { \ + if (cop1_64bit(xcp) && !hybrid_fprs()) { \ unsigned i; \ set_fpr32(&ctx->fpr[x], 0, si); \ for (i = 1; i < ARRAY_SIZE(ctx->fpr[x].val32); i++) \ @@ -1023,7 +1024,7 @@ emul: goto emul; case cop1x_op: - if (cpu_has_mips_4_5 || cpu_has_mips64) + if (cpu_has_mips_4_5 || cpu_has_mips64 || cpu_has_mips32r2) /* its one of ours */ goto emul; @@ -1068,7 +1069,7 @@ emul: break; case cop1x_op: - if (!cpu_has_mips_4_5 && !cpu_has_mips64) + if (!cpu_has_mips_4_5 && !cpu_has_mips64 && !cpu_has_mips32r2) return SIGILL; sig = fpux_emu(xcp, ctx, ir, fault_addr); |