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/single_cpdo.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/arm/nwfpe/single_cpdo.c') diff --git a/arch/arm/nwfpe/single_cpdo.c b/arch/arm/nwfpe/single_cpdo.c index 705808e88d9d..c66981d682cf 100644 --- a/arch/arm/nwfpe/single_cpdo.c +++ b/arch/arm/nwfpe/single_cpdo.c @@ -36,17 +36,17 @@ float32 float32_arccos(float32 rFm); float32 float32_pow(float32 rFn, float32 rFm); float32 float32_pol(float32 rFn, float32 rFm); -static float32 float32_rsf(float32 rFn, float32 rFm) +static float32 float32_rsf(struct roundingData *roundData, float32 rFn, float32 rFm) { - return float32_sub(rFm, rFn); + return float32_sub(roundData, rFm, rFn); } -static float32 float32_rdv(float32 rFn, float32 rFm) +static float32 float32_rdv(struct roundingData *roundData, float32 rFn, float32 rFm) { - return float32_div(rFm, rFn); + return float32_div(roundData, rFm, rFn); } -static float32 (*const dyadic_single[16])(float32 rFn, float32 rFm) = { +static float32 (*const dyadic_single[16])(struct roundingData *, float32 rFn, float32 rFm) = { [ADF_CODE >> 20] = float32_add, [MUF_CODE >> 20] = float32_mul, [SUF_CODE >> 20] = float32_sub, @@ -60,22 +60,22 @@ static float32 (*const dyadic_single[16])(float32 rFn, float32 rFm) = { [FRD_CODE >> 20] = float32_rdv, }; -static float32 float32_mvf(float32 rFm) +static float32 float32_mvf(struct roundingData *roundData, float32 rFm) { return rFm; } -static float32 float32_mnf(float32 rFm) +static float32 float32_mnf(struct roundingData *roundData, float32 rFm) { return rFm ^ 0x80000000; } -static float32 float32_abs(float32 rFm) +static float32 float32_abs(struct roundingData *roundData, float32 rFm) { return rFm & 0x7fffffff; } -static float32 (*const monadic_single[16])(float32 rFm) = { +static float32 (*const monadic_single[16])(struct roundingData*, float32 rFm) = { [MVF_CODE >> 20] = float32_mvf, [MNF_CODE >> 20] = float32_mnf, [ABS_CODE >> 20] = float32_abs, @@ -85,7 +85,7 @@ static float32 (*const monadic_single[16])(float32 rFm) = { [NRM_CODE >> 20] = float32_mvf, }; -unsigned int SingleCPDO(const unsigned int opcode, FPREG * rFd) +unsigned int SingleCPDO(struct roundingData *roundData, const unsigned int opcode, FPREG * rFd) { FPA11 *fpa11 = GET_FPA11(); float32 rFm; @@ -108,13 +108,13 @@ unsigned int SingleCPDO(const unsigned int opcode, FPREG * rFd) if (fpa11->fType[Fn] == typeSingle && dyadic_single[opc_mask_shift]) { rFn = fpa11->fpreg[Fn].fSingle; - rFd->fSingle = dyadic_single[opc_mask_shift](rFn, rFm); + rFd->fSingle = dyadic_single[opc_mask_shift](roundData, rFn, rFm); } else { return 0; } } else { if (monadic_single[opc_mask_shift]) { - rFd->fSingle = monadic_single[opc_mask_shift](rFm); + rFd->fSingle = monadic_single[opc_mask_shift](roundData, rFm); } else { return 0; } -- cgit v1.2.3