From f148af2593ef76ac705d1cc6abe48f455c9912cc Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Wed, 3 Aug 2005 19:49:17 +0100 Subject: [PATCH] ARM: 2837/2: Re: ARM: Make NWFPE preempt safe Patch from Richard Purdie NWFPE used global variables which meant it wasn't safe for use with preemptive kernels. This patch removes them and communicates the information between functions in a preempt safe manner. Generation of some exceptions was broken and this has also been corrected. Tests with glibc's maths test suite show no change in the results before/after this patch. Signed-off-by: Richard Purdie Signed-off-by: Russell King --- arch/arm/nwfpe/extended_cpdo.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/arm/nwfpe/extended_cpdo.c') diff --git a/arch/arm/nwfpe/extended_cpdo.c b/arch/arm/nwfpe/extended_cpdo.c index c39f68a3449..65a279ba927 100644 --- a/arch/arm/nwfpe/extended_cpdo.c +++ b/arch/arm/nwfpe/extended_cpdo.c @@ -35,17 +35,17 @@ floatx80 floatx80_arccos(floatx80 rFm); floatx80 floatx80_pow(floatx80 rFn, floatx80 rFm); floatx80 floatx80_pol(floatx80 rFn, floatx80 rFm); -static floatx80 floatx80_rsf(floatx80 rFn, floatx80 rFm) +static floatx80 floatx80_rsf(struct roundingData *roundData, floatx80 rFn, floatx80 rFm) { - return floatx80_sub(rFm, rFn); + return floatx80_sub(roundData, rFm, rFn); } -static floatx80 floatx80_rdv(floatx80 rFn, floatx80 rFm) +static floatx80 floatx80_rdv(struct roundingData *roundData, floatx80 rFn, floatx80 rFm) { - return floatx80_div(rFm, rFn); + return floatx80_div(roundData, rFm, rFn); } -static floatx80 (*const dyadic_extended[16])(floatx80 rFn, floatx80 rFm) = { +static floatx80 (*const dyadic_extended[16])(struct roundingData*, floatx80 rFn, floatx80 rFm) = { [ADF_CODE >> 20] = floatx80_add, [MUF_CODE >> 20] = floatx80_mul, [SUF_CODE >> 20] = floatx80_sub, @@ -60,24 +60,24 @@ static floatx80 (*const dyadic_extended[16])(floatx80 rFn, floatx80 rFm) = { [FRD_CODE >> 20] = floatx80_rdv, }; -static floatx80 floatx80_mvf(floatx80 rFm) +static floatx80 floatx80_mvf(struct roundingData *roundData, floatx80 rFm) { return rFm; } -static floatx80 floatx80_mnf(floatx80 rFm) +static floatx80 floatx80_mnf(struct roundingData *roundData, floatx80 rFm) { rFm.high ^= 0x8000; return rFm; } -static floatx80 floatx80_abs(floatx80 rFm) +static floatx80 floatx80_abs(struct roundingData *roundData, floatx80 rFm) { rFm.high &= 0x7fff; return rFm; } -static floatx80 (*const monadic_extended[16])(floatx80 rFm) = { +static floatx80 (*const monadic_extended[16])(struct roundingData*, floatx80 rFm) = { [MVF_CODE >> 20] = floatx80_mvf, [MNF_CODE >> 20] = floatx80_mnf, [ABS_CODE >> 20] = floatx80_abs, @@ -87,7 +87,7 @@ static floatx80 (*const monadic_extended[16])(floatx80 rFm) = { [NRM_CODE >> 20] = floatx80_mvf, }; -unsigned int ExtendedCPDO(const unsigned int opcode, FPREG * rFd) +unsigned int ExtendedCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd) { FPA11 *fpa11 = GET_FPA11(); floatx80 rFm; @@ -138,13 +138,13 @@ unsigned int ExtendedCPDO(const unsigned int opcode, FPREG * rFd) } if (dyadic_extended[opc_mask_shift]) { - rFd->fExtended = dyadic_extended[opc_mask_shift](rFn, rFm); + rFd->fExtended = dyadic_extended[opc_mask_shift](roundData, rFn, rFm); } else { return 0; } } else { if (monadic_extended[opc_mask_shift]) { - rFd->fExtended = monadic_extended[opc_mask_shift](rFm); + rFd->fExtended = monadic_extended[opc_mask_shift](roundData, rFm); } else { return 0; } -- cgit v1.2.3-70-g09d2