diff options
Diffstat (limited to 'arch/mips/math-emu/cp1emu.c')
| -rw-r--r-- | arch/mips/math-emu/cp1emu.c | 68 |
1 files changed, 46 insertions, 22 deletions
diff --git a/arch/mips/math-emu/cp1emu.c b/arch/mips/math-emu/cp1emu.c index 710e1f804a54..265bc57819df 100644 --- a/arch/mips/math-emu/cp1emu.c +++ b/arch/mips/math-emu/cp1emu.c @@ -439,7 +439,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, regs->cp0_epc + dec_insn.pc_inc + dec_insn.next_pc_inc; } - /* fall through */ + fallthrough; case jr_op: /* For R6, JR already emulated in jalr_op */ if (NO_R6EMU && insn.r_format.func == jr_op) @@ -459,11 +459,11 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, regs->regs[31] = regs->cp0_epc + dec_insn.pc_inc + dec_insn.next_pc_inc; - /* fall through */ + fallthrough; case bltzl_op: if (NO_R6EMU) break; - /* fall through */ + fallthrough; case bltz_op: if ((long)regs->regs[insn.i_format.rs] < 0) *contpc = regs->cp0_epc + @@ -483,11 +483,11 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, regs->regs[31] = regs->cp0_epc + dec_insn.pc_inc + dec_insn.next_pc_inc; - /* fall through */ + fallthrough; case bgezl_op: if (NO_R6EMU) break; - /* fall through */ + fallthrough; case bgez_op: if ((long)regs->regs[insn.i_format.rs] >= 0) *contpc = regs->cp0_epc + @@ -502,12 +502,12 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, break; case jalx_op: set_isa16_mode(bit); - /* fall through */ + fallthrough; case jal_op: regs->regs[31] = regs->cp0_epc + dec_insn.pc_inc + dec_insn.next_pc_inc; - /* fall through */ + fallthrough; case j_op: *contpc = regs->cp0_epc + dec_insn.pc_inc; *contpc >>= 28; @@ -519,7 +519,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, case beql_op: if (NO_R6EMU) break; - /* fall through */ + fallthrough; case beq_op: if (regs->regs[insn.i_format.rs] == regs->regs[insn.i_format.rt]) @@ -534,7 +534,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, case bnel_op: if (NO_R6EMU) break; - /* fall through */ + fallthrough; case bne_op: if (regs->regs[insn.i_format.rs] != regs->regs[insn.i_format.rt]) @@ -549,7 +549,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, case blezl_op: if (!insn.i_format.rt && NO_R6EMU) break; - /* fall through */ + fallthrough; case blez_op: /* @@ -587,7 +587,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, case bgtzl_op: if (!insn.i_format.rt && NO_R6EMU) break; - /* fall through */ + fallthrough; case bgtz_op: /* * Compact branches for R6 for the @@ -725,7 +725,7 @@ int isBranchInstr(struct pt_regs *regs, struct mm_decoded_insn dec_insn, return 1; } /* R2/R6 compatible cop1 instruction */ - /* fall through */ + fallthrough; case cop2_op: case cop1x_op: if (insn.i_format.rs == bc_op) { @@ -1032,7 +1032,7 @@ static int cop1Emulate(struct pt_regs *xcp, struct mips_fpu_struct *ctx, */ if (dec_insn.micro_mips_mode) { /* - * If next instruction is a 16-bit instruction, then it + * If next instruction is a 16-bit instruction, then * it cannot be a FPU instruction. This could happen * since we can be called for non-FPU instructions. */ @@ -1217,14 +1217,14 @@ emul: case bcfl_op: if (cpu_has_mips_2_3_4_5_r) likely = 1; - /* fall through */ + fallthrough; case bcf_op: cond = !cond; break; case bctl_op: if (cpu_has_mips_2_3_4_5_r) likely = 1; - /* fall through */ + fallthrough; case bct_op: break; } @@ -1514,16 +1514,28 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, break; case madd_s_op: - handler = fpemu_sp_madd; + if (cpu_has_mac2008_only) + handler = ieee754sp_madd; + else + handler = fpemu_sp_madd; goto scoptop; case msub_s_op: - handler = fpemu_sp_msub; + if (cpu_has_mac2008_only) + handler = ieee754sp_msub; + else + handler = fpemu_sp_msub; goto scoptop; case nmadd_s_op: - handler = fpemu_sp_nmadd; + if (cpu_has_mac2008_only) + handler = ieee754sp_nmadd; + else + handler = fpemu_sp_nmadd; goto scoptop; case nmsub_s_op: - handler = fpemu_sp_nmsub; + if (cpu_has_mac2008_only) + handler = ieee754sp_nmsub; + else + handler = fpemu_sp_nmsub; goto scoptop; scoptop: @@ -1610,15 +1622,27 @@ static int fpux_emu(struct pt_regs *xcp, struct mips_fpu_struct *ctx, break; case madd_d_op: - handler = fpemu_dp_madd; + if (cpu_has_mac2008_only) + handler = ieee754dp_madd; + else + handler = fpemu_dp_madd; goto dcoptop; case msub_d_op: - handler = fpemu_dp_msub; + if (cpu_has_mac2008_only) + handler = ieee754dp_msub; + else + handler = fpemu_dp_msub; goto dcoptop; case nmadd_d_op: - handler = fpemu_dp_nmadd; + if (cpu_has_mac2008_only) + handler = ieee754dp_nmadd; + else + handler = fpemu_dp_nmadd; goto dcoptop; case nmsub_d_op: + if (cpu_has_mac2008_only) + handler = ieee754dp_nmsub; + else handler = fpemu_dp_nmsub; goto dcoptop; |