kernel.git/arch/powerpc/math-emu, branch linux-2.6.28.y

powerpc/math-emu: Use kernel generic math-emu code

2008-10-01T13:40:07Z

The math emulation code is centered around a set of generic macros that provide the core of the emulation that are shared by the various architectures and other projects (like glibc). Each arch implements its own sfp-machine.h to specific various arch specific details. For historic reasons that are now lost the powerpc math-emu code had its own version of the common headers. This moves us to using the kernel generic version and thus getting fixes when those are updated. Also cleaned up exception/error reporting from the FP emulation functions. Signed-off-by: Kumar Gala

powerpc: Add macros to access floating point registers in thread_struct.

2008-07-01T01:28:43Z

We are going to change where the floating point registers are stored in the thread_struct, so in preparation add some macros to access the floating point registers. Update all code to use these new macros. Signed-off-by: Michael Neuling Signed-off-by: Paul Mackerras

[POWERPC] Replace remaining FUNCTION occurrences

2008-04-01T09:43:09Z

__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Paul Mackerras

[POWERPC] Fix carry bug in 128-bit unsigned integer adding

2008-01-24T01:34:21Z

Synchronize it to the definition in include/math-emu/op-4.h for short term. Signed-off-by: Liu Yu Signed-off-by: Kumar Gala

[POWERPC] Fix rounding bug in emulation for double float operating

2007-12-14T04:59:00Z

This patch fixes rounding bug in emulation for double float operating on PowerPC platform. When pack double float operand, it need to truncate the tail due to the limited precision. If the truncated part is not zero, the last bit of work bit (totally 3 bits) need to '|' 1. This patch is completed in _FP_FRAC_SRS_2(X,N,sz) (arch/powerpc/math-emu/op-2.h). Originally the code leftwards rotates the operand to just keep the truncated part, then check whether it is zero. However, the number it rotates is not correct when N is not smaller than _FP_W_TYPE_SIZE, and it will cause the work bit '|' 1 in the improper case. This patch fixes this issue. Signed-off-by: Liu Yu Signed-off-by: Kumar Gala

[POWERPC] Fix handling of stfiwx math emulation

2007-10-16T14:05:24Z

Its legal for the stfiwx instruction to have RA = 0 as part of its effective address calculation. This is illegal for all other XE form instructions. Add code to compute the proper effective address for stfiwx if RA = 0 rather than treating it as illegal. Signed-off-by: Kumar Gala

[POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c

2006-09-26T05:24:35Z

... since they deal with internal function with that name. Signed-off-by: Al Viro Signed-off-by: Paul Mackerras

Remove obsolete #include

2006-06-30T17:25:36Z

Signed-off-by: Jörn Engel Signed-off-by: Adrian Bunk

powerpc: move math-emu over to arch/powerpc

2006-03-28T05:43:27Z

Towards the goal of having arch/powerpc not build anything over in arch/ppc move math-emu over. Also, killed some references to arch/ppc/ in the arch/powerpc Makefile which should belong in drivers/ when the particular sub-arch's move over to arch/powerpc. Signed-off-by: Kumar Gala