kernel.git/arch/arm/vfp, branch linux-2.6.19.y

[ARM] 3900/1: Fix VFP Division by Zero exception handling.

2006-10-28T09:15:31Z

The SIGFPE signal should be generated if Division by Zero exception is detected. Signed-off-by: Takashi Ohmasa Signed-off-by: Russell King

[ARM] 3899/1: Fix the normalization of the denormal double precision number.

2006-10-28T09:15:31Z

The significand should be shifted until the value of bit [62] is 1 to normalize the denormal double number. Signed-off-by: Takashi Ohmasa Signed-off-by: Russell King

[PATCH] arm __user annotations

2006-10-11T18:17:05Z

Signed-off-by: Al Viro Signed-off-by: Linus Torvalds

[PATCH] arm build fail: vfpsingle.c

2006-10-03T15:04:20Z

It looks like Zach Brown's patch pr_debug-check-pr_debug-arguments worked as inteded. That is, it doesn't "allow completely incorrect code to build." :). The arm build fails with the following message: CC arch/arm/vfp/vfpsingle.o arch/arm/vfp/vfpsingle.c: In function `__vfp_single_normaliseround': arch/arm/vfp/vfpsingle.c:201: error: `func' undeclared (first use in this function) arch/arm/vfp/vfpsingle.c:201: error: (Each undeclared identifier is reported only once arch/arm/vfp/vfpsingle.c:201: error: for each function it appears in.) make[1]: *** [arch/arm/vfp/vfpsingle.o] Error 1 make: *** [arch/arm/vfp] Error 2 The following patch fixes the issue by using func only when DEBUG is defined. Signed-off-by: Frederik Deweerdt Cc: Russell King Cc: Zach Brown Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

[ARM] Cleanups for 4cc9bd2eaa1063c68341c1c00e66660adcfdf254

2006-09-25T09:34:59Z

- Document the meaning for OP_SCALAR, OP_SD and add OP_DD. - Formatting cleanups - Remove now redundant code for making compare instructions operate on scalar values. Signed-off-by: Russell King

[ARM] 3789/4: Fix VFP emulation to ignore VECITR for scalar instruction

2006-09-25T09:34:06Z

VECITR in Floating-Point Exception register indicates the number of remaining short vector iterations after a potential exception was detected. In case of exception caused by scalar instructions, VECITR is NOT updated. Therefore emulation for VFP must ignore VECITR field and treat "veclen" as zero when recognizing scalar instructing. Signed-off-by: Gen Fukatsu Signed-off-by: Russell King

[ARM] 3759/2: Remove uses of %?

2006-09-20T13:58:35Z

Patch from Daniel Jacobowitz The ARM kernel has several uses of asm("foo%?"). %? is a GCC internal modifier used to output conditional execution predicates. However, no version of GCC supports conditionalizing asm statements. GCC 4.2 will correctly expand %? to the empty string in user asms. Earlier versions may reuse the condition from the previous instruction. In 'if (foo) asm ("bar%?");' this is somewhat likely to be right... but not reliable. So, the only safe thing to do is to remove the uses of %?. I believe the tlbflush.h occurances were supposed to be removed before, based on the comment about %? not working at the top of that file. Old versions of GCC could omit branches around user asms if the asm didn't mark the condition codes as clobbered. This problem hasn't been seen on any recent (3.x or 4.x) GCC, but it could theoretically happen. So, where %? was removed a cc clobber was added. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King

[ARM] Optimise VFP thread notify function a little

2006-09-20T13:58:35Z

The common case for the thread notifier is a context switch. Tell gcc that this is the most likely condition so it can optimise the function for this case. Signed-off-by: Russell King

[ARM] 3750/3: Fix double VFP emulation for EABI kernels

2006-08-30T14:06:39Z

Patch from Daniel Jacobowitz vfp_put_double didn't work in a CONFIG_AEABI kernel. By swapping the arguments, we arrange for them to be in the same place regardless of ABI. I made the same change to vfp_put_float for consistency. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King

[ARM] 3758/1: Preserve signalling NaNs in conversion

2006-08-27T11:42:14Z

Patch from Daniel Jacobowitz The fcvtds and fcvtsd instructions were generating a qnan bit pattern for both quiet and signalling NaNs. Signed-off-by: Daniel Jacobowitz Signed-off-by: Russell King