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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2017-08-08 13:58:44 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-08-10 15:32:04 +0200 |
| commit | fbbcc3bb139e044653b47f183ac9189c31895f23 (patch) | |
| tree | 8779ece748701e2786dc7ba6425e00fe44aa7885 /Kconfig | |
| parent | powerpc/8xx: Move 8xx machine check handlers into platforms/8xx (diff) | |
| download | linux-fbbcc3bb139e044653b47f183ac9189c31895f23.tar.xz linux-fbbcc3bb139e044653b47f183ac9189c31895f23.zip | |
powerpc/8xx: Remove SoftwareEmulation()
Since commit aa42c69c67f82 ("[POWERPC] Add support for FP emulation
for the e300c2 core"), program_check_exception() can be called for
math emulation. In that case, 'reason' is 0.
On the 8xx, there is a Software Emulation interrupt which is
called for all unimplemented and illegal instructions. This
interrupt calls SoftwareEmulation() which does almost the
same as program_check_exception() called with reason = 0.
The Software Emulation interrupt sets all reason bits to 0,
it is therefore possible to call program_check_exception()
directly from the interrupt handler.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'Kconfig')
0 files changed, 0 insertions, 0 deletions