diff options
Diffstat (limited to 'arch/arm/vfp/vfpdouble.c')
-rw-r--r-- | arch/arm/vfp/vfpdouble.c | 73 |
1 files changed, 32 insertions, 41 deletions
diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c index e19a4f7620de..4fc05ee0a2ef 100644 --- a/arch/arm/vfp/vfpdouble.c +++ b/arch/arm/vfp/vfpdouble.c | |||
@@ -660,21 +660,21 @@ static u32 vfp_double_ftosiz(int dd, int unused, int dm, u32 fpscr) | |||
660 | 660 | ||
661 | 661 | ||
662 | static struct op fops_ext[32] = { | 662 | static struct op fops_ext[32] = { |
663 | [FEXT_TO_IDX(FEXT_FCPY)] = {vfp_double_fcpy, 0}, | 663 | [FEXT_TO_IDX(FEXT_FCPY)] = { vfp_double_fcpy, 0 }, |
664 | [FEXT_TO_IDX(FEXT_FABS)] = {vfp_double_fabs, 0}, | 664 | [FEXT_TO_IDX(FEXT_FABS)] = { vfp_double_fabs, 0 }, |
665 | [FEXT_TO_IDX(FEXT_FNEG)] = {vfp_double_fneg, 0}, | 665 | [FEXT_TO_IDX(FEXT_FNEG)] = { vfp_double_fneg, 0 }, |
666 | [FEXT_TO_IDX(FEXT_FSQRT)] = {vfp_double_fsqrt, 0}, | 666 | [FEXT_TO_IDX(FEXT_FSQRT)] = { vfp_double_fsqrt, 0 }, |
667 | [FEXT_TO_IDX(FEXT_FCMP)] = {vfp_double_fcmp, OP_SCALAR}, | 667 | [FEXT_TO_IDX(FEXT_FCMP)] = { vfp_double_fcmp, OP_SCALAR }, |
668 | [FEXT_TO_IDX(FEXT_FCMPE)] = {vfp_double_fcmpe, OP_SCALAR}, | 668 | [FEXT_TO_IDX(FEXT_FCMPE)] = { vfp_double_fcmpe, OP_SCALAR }, |
669 | [FEXT_TO_IDX(FEXT_FCMPZ)] = {vfp_double_fcmpz, OP_SCALAR}, | 669 | [FEXT_TO_IDX(FEXT_FCMPZ)] = { vfp_double_fcmpz, OP_SCALAR }, |
670 | [FEXT_TO_IDX(FEXT_FCMPEZ)] = {vfp_double_fcmpez, OP_SCALAR}, | 670 | [FEXT_TO_IDX(FEXT_FCMPEZ)] = { vfp_double_fcmpez, OP_SCALAR }, |
671 | [FEXT_TO_IDX(FEXT_FCVT)] = {vfp_double_fcvts, (OP_SD|OP_SCALAR)}, | 671 | [FEXT_TO_IDX(FEXT_FCVT)] = { vfp_double_fcvts, OP_SCALAR|OP_SD }, |
672 | [FEXT_TO_IDX(FEXT_FUITO)] = {vfp_double_fuito, OP_SCALAR}, | 672 | [FEXT_TO_IDX(FEXT_FUITO)] = { vfp_double_fuito, OP_SCALAR }, |
673 | [FEXT_TO_IDX(FEXT_FSITO)] = {vfp_double_fsito, OP_SCALAR}, | 673 | [FEXT_TO_IDX(FEXT_FSITO)] = { vfp_double_fsito, OP_SCALAR }, |
674 | [FEXT_TO_IDX(FEXT_FTOUI)] = {vfp_double_ftoui, (OP_SD|OP_SCALAR)}, | 674 | [FEXT_TO_IDX(FEXT_FTOUI)] = { vfp_double_ftoui, OP_SCALAR|OP_SD }, |
675 | [FEXT_TO_IDX(FEXT_FTOUIZ)] = {vfp_double_ftouiz, (OP_SD|OP_SCALAR)}, | 675 | [FEXT_TO_IDX(FEXT_FTOUIZ)] = { vfp_double_ftouiz, OP_SCALAR|OP_SD }, |
676 | [FEXT_TO_IDX(FEXT_FTOSI)] = {vfp_double_ftosi, (OP_SD|OP_SCALAR)}, | 676 | [FEXT_TO_IDX(FEXT_FTOSI)] = { vfp_double_ftosi, OP_SCALAR|OP_SD }, |
677 | [FEXT_TO_IDX(FEXT_FTOSIZ)] = {vfp_double_ftosiz, (OP_SD|OP_SCALAR)}, | 677 | [FEXT_TO_IDX(FEXT_FTOSIZ)] = { vfp_double_ftosiz, OP_SCALAR|OP_SD }, |
678 | }; | 678 | }; |
679 | 679 | ||
680 | 680 | ||
@@ -1109,15 +1109,15 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr) | |||
1109 | } | 1109 | } |
1110 | 1110 | ||
1111 | static struct op fops[16] = { | 1111 | static struct op fops[16] = { |
1112 | [FOP_TO_IDX(FOP_FMAC)] = {vfp_double_fmac, 0}, | 1112 | [FOP_TO_IDX(FOP_FMAC)] = { vfp_double_fmac, 0 }, |
1113 | [FOP_TO_IDX(FOP_FNMAC)] = {vfp_double_fnmac, 0}, | 1113 | [FOP_TO_IDX(FOP_FNMAC)] = { vfp_double_fnmac, 0 }, |
1114 | [FOP_TO_IDX(FOP_FMSC)] = {vfp_double_fmsc, 0}, | 1114 | [FOP_TO_IDX(FOP_FMSC)] = { vfp_double_fmsc, 0 }, |
1115 | [FOP_TO_IDX(FOP_FNMSC)] = {vfp_double_fnmsc, 0}, | 1115 | [FOP_TO_IDX(FOP_FNMSC)] = { vfp_double_fnmsc, 0 }, |
1116 | [FOP_TO_IDX(FOP_FMUL)] = {vfp_double_fmul, 0}, | 1116 | [FOP_TO_IDX(FOP_FMUL)] = { vfp_double_fmul, 0 }, |
1117 | [FOP_TO_IDX(FOP_FNMUL)] = {vfp_double_fnmul, 0}, | 1117 | [FOP_TO_IDX(FOP_FNMUL)] = { vfp_double_fnmul, 0 }, |
1118 | [FOP_TO_IDX(FOP_FADD)] = {vfp_double_fadd, 0}, | 1118 | [FOP_TO_IDX(FOP_FADD)] = { vfp_double_fadd, 0 }, |
1119 | [FOP_TO_IDX(FOP_FSUB)] = {vfp_double_fsub, 0}, | 1119 | [FOP_TO_IDX(FOP_FSUB)] = { vfp_double_fsub, 0 }, |
1120 | [FOP_TO_IDX(FOP_FDIV)] = {vfp_double_fdiv, 0}, | 1120 | [FOP_TO_IDX(FOP_FDIV)] = { vfp_double_fdiv, 0 }, |
1121 | }; | 1121 | }; |
1122 | 1122 | ||
1123 | #define FREG_BANK(x) ((x) & 0x0c) | 1123 | #define FREG_BANK(x) ((x) & 0x0c) |
@@ -1136,6 +1136,7 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) | |||
1136 | vecstride = (1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK)) * 2; | 1136 | vecstride = (1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK)) * 2; |
1137 | 1137 | ||
1138 | fop = (op == FOP_EXT) ? &fops_ext[FEXT_TO_IDX(inst)] : &fops[FOP_TO_IDX(op)]; | 1138 | fop = (op == FOP_EXT) ? &fops_ext[FEXT_TO_IDX(inst)] : &fops[FOP_TO_IDX(op)]; |
1139 | |||
1139 | /* | 1140 | /* |
1140 | * fcvtds takes an sN register number as destination, not dN. | 1141 | * fcvtds takes an sN register number as destination, not dN. |
1141 | * It also always operates on scalars. | 1142 | * It also always operates on scalars. |
@@ -1162,19 +1163,17 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) | |||
1162 | 1163 | ||
1163 | for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) { | 1164 | for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) { |
1164 | u32 except; | 1165 | u32 except; |
1166 | char type; | ||
1165 | 1167 | ||
1166 | if (op == FOP_EXT && (fop->flags & OP_SD)) | 1168 | type = fop->flags & OP_SD ? 's' : 'd'; |
1167 | pr_debug("VFP: itr%d (s%u) = op[%u] (d%u)\n", | 1169 | if (op == FOP_EXT) |
1168 | vecitr >> FPSCR_LENGTH_BIT, | 1170 | pr_debug("VFP: itr%d (%c%u) = op[%u] (d%u)\n", |
1169 | dest, dn, dm); | ||
1170 | else if (op == FOP_EXT) | ||
1171 | pr_debug("VFP: itr%d (d%u) = op[%u] (d%u)\n", | ||
1172 | vecitr >> FPSCR_LENGTH_BIT, | 1171 | vecitr >> FPSCR_LENGTH_BIT, |
1173 | dest, dn, dm); | 1172 | type, dest, dn, dm); |
1174 | else | 1173 | else |
1175 | pr_debug("VFP: itr%d (d%u) = (d%u) op[%u] (d%u)\n", | 1174 | pr_debug("VFP: itr%d (%c%u) = (d%u) op[%u] (d%u)\n", |
1176 | vecitr >> FPSCR_LENGTH_BIT, | 1175 | vecitr >> FPSCR_LENGTH_BIT, |
1177 | dest, dn, FOP_TO_IDX(op), dm); | 1176 | type, dest, dn, FOP_TO_IDX(op), dm); |
1178 | 1177 | ||
1179 | except = fop->fn(dest, dn, dm, fpscr); | 1178 | except = fop->fn(dest, dn, dm, fpscr); |
1180 | pr_debug("VFP: itr%d: exceptions=%08x\n", | 1179 | pr_debug("VFP: itr%d: exceptions=%08x\n", |
@@ -1183,17 +1182,9 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr) | |||
1183 | exceptions |= except; | 1182 | exceptions |= except; |
1184 | 1183 | ||
1185 | /* | 1184 | /* |
1186 | * This ensures that comparisons only operate on scalars; | ||
1187 | * comparisons always return with one FPSCR status bit set. | ||
1188 | */ | ||
1189 | if (except & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V)) | ||
1190 | break; | ||
1191 | |||
1192 | /* | ||
1193 | * CHECK: It appears to be undefined whether we stop when | 1185 | * CHECK: It appears to be undefined whether we stop when |
1194 | * we encounter an exception. We continue. | 1186 | * we encounter an exception. We continue. |
1195 | */ | 1187 | */ |
1196 | |||
1197 | dest = FREG_BANK(dest) + ((FREG_IDX(dest) + vecstride) & 6); | 1188 | dest = FREG_BANK(dest) + ((FREG_IDX(dest) + vecstride) & 6); |
1198 | dn = FREG_BANK(dn) + ((FREG_IDX(dn) + vecstride) & 6); | 1189 | dn = FREG_BANK(dn) + ((FREG_IDX(dn) + vecstride) & 6); |
1199 | if (FREG_BANK(dm) != 0) | 1190 | if (FREG_BANK(dm) != 0) |