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authorLinus Torvalds <torvalds@g5.osdl.org>2006-09-28 14:40:39 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-28 14:40:39 -0700
commitebdea46fecae40c4d7effcd33f40918a37a1df4b (patch)
treee4312bf7f1f3d184738963a0ec300aa9fdfd55c1 /arch/arm/vfp/vfpdouble.c
parentfecf3404f4aba6d0edeba31eeb018cbb6326dff2 (diff)
parent250d375d1da45a5e08ab8baf5eaa7eb258afd82b (diff)
downloadop-kernel-dev-ebdea46fecae40c4d7effcd33f40918a37a1df4b.zip
op-kernel-dev-ebdea46fecae40c4d7effcd33f40918a37a1df4b.tar.gz
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (130 commits) [ARM] 3856/1: Add clocksource for Intel IXP4xx platforms [ARM] 3855/1: Add generic time support [ARM] 3873/1: S3C24XX: Add irq_chip names [ARM] 3872/1: S3C24XX: Apply consistant tabbing to irq_chips [ARM] 3871/1: S3C24XX: Fix ordering of EINT4..23 [ARM] nommu: confirms the CR_V bit in nommu mode [ARM] nommu: abort handler fixup for !CPU_CP15_MMU cores. [ARM] 3870/1: AT91: Start removing static memory mappings [ARM] 3869/1: AT91: NAND support for DK and KB9202 boards [ARM] 3868/1: AT91 hardware header update [ARM] 3867/1: AT91 GPIO update [ARM] 3866/1: AT91 clock update [ARM] 3865/1: AT91RM9200 header updates [ARM] 3862/2: S3C2410 - add basic power management support for AML M5900 series [ARM] kthread: switch arch/arm/kernel/apm.c [ARM] Off-by-one in arch/arm/common/icst* [ARM] 3864/1: Refactore sharpsl_pm [ARM] 3863/1: Add Locomo SPI Device [ARM] 3847/2: Convert LOMOMO to use struct device for GPIOs [ARM] Use CPU_CACHE_* where possible in asm/cacheflush.h ...
Diffstat (limited to 'arch/arm/vfp/vfpdouble.c')
-rw-r--r--arch/arm/vfp/vfpdouble.c95
1 files changed, 43 insertions, 52 deletions
diff --git a/arch/arm/vfp/vfpdouble.c b/arch/arm/vfp/vfpdouble.c
index add48e3..4fc05ee 100644
--- a/arch/arm/vfp/vfpdouble.c
+++ b/arch/arm/vfp/vfpdouble.c
@@ -659,22 +659,22 @@ static u32 vfp_double_ftosiz(int dd, int unused, int dm, u32 fpscr)
}
-static u32 (* const fop_extfns[32])(int dd, int unused, int dm, u32 fpscr) = {
- [FEXT_TO_IDX(FEXT_FCPY)] = vfp_double_fcpy,
- [FEXT_TO_IDX(FEXT_FABS)] = vfp_double_fabs,
- [FEXT_TO_IDX(FEXT_FNEG)] = vfp_double_fneg,
- [FEXT_TO_IDX(FEXT_FSQRT)] = vfp_double_fsqrt,
- [FEXT_TO_IDX(FEXT_FCMP)] = vfp_double_fcmp,
- [FEXT_TO_IDX(FEXT_FCMPE)] = vfp_double_fcmpe,
- [FEXT_TO_IDX(FEXT_FCMPZ)] = vfp_double_fcmpz,
- [FEXT_TO_IDX(FEXT_FCMPEZ)] = vfp_double_fcmpez,
- [FEXT_TO_IDX(FEXT_FCVT)] = vfp_double_fcvts,
- [FEXT_TO_IDX(FEXT_FUITO)] = vfp_double_fuito,
- [FEXT_TO_IDX(FEXT_FSITO)] = vfp_double_fsito,
- [FEXT_TO_IDX(FEXT_FTOUI)] = vfp_double_ftoui,
- [FEXT_TO_IDX(FEXT_FTOUIZ)] = vfp_double_ftouiz,
- [FEXT_TO_IDX(FEXT_FTOSI)] = vfp_double_ftosi,
- [FEXT_TO_IDX(FEXT_FTOSIZ)] = vfp_double_ftosiz,
+static struct op fops_ext[32] = {
+ [FEXT_TO_IDX(FEXT_FCPY)] = { vfp_double_fcpy, 0 },
+ [FEXT_TO_IDX(FEXT_FABS)] = { vfp_double_fabs, 0 },
+ [FEXT_TO_IDX(FEXT_FNEG)] = { vfp_double_fneg, 0 },
+ [FEXT_TO_IDX(FEXT_FSQRT)] = { vfp_double_fsqrt, 0 },
+ [FEXT_TO_IDX(FEXT_FCMP)] = { vfp_double_fcmp, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FCMPE)] = { vfp_double_fcmpe, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FCMPZ)] = { vfp_double_fcmpz, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FCMPEZ)] = { vfp_double_fcmpez, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FCVT)] = { vfp_double_fcvts, OP_SCALAR|OP_SD },
+ [FEXT_TO_IDX(FEXT_FUITO)] = { vfp_double_fuito, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FSITO)] = { vfp_double_fsito, OP_SCALAR },
+ [FEXT_TO_IDX(FEXT_FTOUI)] = { vfp_double_ftoui, OP_SCALAR|OP_SD },
+ [FEXT_TO_IDX(FEXT_FTOUIZ)] = { vfp_double_ftouiz, OP_SCALAR|OP_SD },
+ [FEXT_TO_IDX(FEXT_FTOSI)] = { vfp_double_ftosi, OP_SCALAR|OP_SD },
+ [FEXT_TO_IDX(FEXT_FTOSIZ)] = { vfp_double_ftosiz, OP_SCALAR|OP_SD },
};
@@ -1108,16 +1108,16 @@ static u32 vfp_double_fdiv(int dd, int dn, int dm, u32 fpscr)
return FPSCR_IOC;
}
-static u32 (* const fop_fns[16])(int dd, int dn, int dm, u32 fpscr) = {
- [FOP_TO_IDX(FOP_FMAC)] = vfp_double_fmac,
- [FOP_TO_IDX(FOP_FNMAC)] = vfp_double_fnmac,
- [FOP_TO_IDX(FOP_FMSC)] = vfp_double_fmsc,
- [FOP_TO_IDX(FOP_FNMSC)] = vfp_double_fnmsc,
- [FOP_TO_IDX(FOP_FMUL)] = vfp_double_fmul,
- [FOP_TO_IDX(FOP_FNMUL)] = vfp_double_fnmul,
- [FOP_TO_IDX(FOP_FADD)] = vfp_double_fadd,
- [FOP_TO_IDX(FOP_FSUB)] = vfp_double_fsub,
- [FOP_TO_IDX(FOP_FDIV)] = vfp_double_fdiv,
+static struct op fops[16] = {
+ [FOP_TO_IDX(FOP_FMAC)] = { vfp_double_fmac, 0 },
+ [FOP_TO_IDX(FOP_FNMAC)] = { vfp_double_fnmac, 0 },
+ [FOP_TO_IDX(FOP_FMSC)] = { vfp_double_fmsc, 0 },
+ [FOP_TO_IDX(FOP_FNMSC)] = { vfp_double_fnmsc, 0 },
+ [FOP_TO_IDX(FOP_FMUL)] = { vfp_double_fmul, 0 },
+ [FOP_TO_IDX(FOP_FNMUL)] = { vfp_double_fnmul, 0 },
+ [FOP_TO_IDX(FOP_FADD)] = { vfp_double_fadd, 0 },
+ [FOP_TO_IDX(FOP_FSUB)] = { vfp_double_fsub, 0 },
+ [FOP_TO_IDX(FOP_FDIV)] = { vfp_double_fdiv, 0 },
};
#define FREG_BANK(x) ((x) & 0x0c)
@@ -1131,69 +1131,60 @@ u32 vfp_double_cpdo(u32 inst, u32 fpscr)
unsigned int dn = vfp_get_dn(inst);
unsigned int dm = vfp_get_dm(inst);
unsigned int vecitr, veclen, vecstride;
- u32 (*fop)(int, int, s32, u32);
+ struct op *fop;
- veclen = fpscr & FPSCR_LENGTH_MASK;
vecstride = (1 + ((fpscr & FPSCR_STRIDE_MASK) == FPSCR_STRIDE_MASK)) * 2;
+ fop = (op == FOP_EXT) ? &fops_ext[FEXT_TO_IDX(inst)] : &fops[FOP_TO_IDX(op)];
+
/*
* fcvtds takes an sN register number as destination, not dN.
* It also always operates on scalars.
*/
- if ((inst & FEXT_MASK) == FEXT_FCVT) {
- veclen = 0;
+ if (fop->flags & OP_SD)
dest = vfp_get_sd(inst);
- } else
+ else
dest = vfp_get_dd(inst);
/*
* If destination bank is zero, vector length is always '1'.
* ARM DDI0100F C5.1.3, C5.3.2.
*/
- if (FREG_BANK(dest) == 0)
+ if ((fop->flags & OP_SCALAR) || (FREG_BANK(dest) == 0))
veclen = 0;
+ else
+ veclen = fpscr & FPSCR_LENGTH_MASK;
pr_debug("VFP: vecstride=%u veclen=%u\n", vecstride,
(veclen >> FPSCR_LENGTH_BIT) + 1);
- fop = (op == FOP_EXT) ? fop_extfns[FEXT_TO_IDX(inst)] : fop_fns[FOP_TO_IDX(op)];
- if (!fop)
+ if (!fop->fn)
goto invalid;
for (vecitr = 0; vecitr <= veclen; vecitr += 1 << FPSCR_LENGTH_BIT) {
u32 except;
+ char type;
- if (op == FOP_EXT && (inst & FEXT_MASK) == FEXT_FCVT)
- pr_debug("VFP: itr%d (s%u) = op[%u] (d%u)\n",
- vecitr >> FPSCR_LENGTH_BIT,
- dest, dn, dm);
- else if (op == FOP_EXT)
- pr_debug("VFP: itr%d (d%u) = op[%u] (d%u)\n",
+ type = fop->flags & OP_SD ? 's' : 'd';
+ if (op == FOP_EXT)
+ pr_debug("VFP: itr%d (%c%u) = op[%u] (d%u)\n",
vecitr >> FPSCR_LENGTH_BIT,
- dest, dn, dm);
+ type, dest, dn, dm);
else
- pr_debug("VFP: itr%d (d%u) = (d%u) op[%u] (d%u)\n",
+ pr_debug("VFP: itr%d (%c%u) = (d%u) op[%u] (d%u)\n",
vecitr >> FPSCR_LENGTH_BIT,
- dest, dn, FOP_TO_IDX(op), dm);
+ type, dest, dn, FOP_TO_IDX(op), dm);
- except = fop(dest, dn, dm, fpscr);
+ except = fop->fn(dest, dn, dm, fpscr);
pr_debug("VFP: itr%d: exceptions=%08x\n",
vecitr >> FPSCR_LENGTH_BIT, except);
exceptions |= except;
/*
- * This ensures that comparisons only operate on scalars;
- * comparisons always return with one FPSCR status bit set.
- */
- if (except & (FPSCR_N|FPSCR_Z|FPSCR_C|FPSCR_V))
- break;
-
- /*
* CHECK: It appears to be undefined whether we stop when
* we encounter an exception. We continue.
*/
-
dest = FREG_BANK(dest) + ((FREG_IDX(dest) + vecstride) & 6);
dn = FREG_BANK(dn) + ((FREG_IDX(dn) + vecstride) & 6);
if (FREG_BANK(dm) != 0)
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