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authorGreg Ungerer <gerg@linux-m68k.org>2016-08-24 06:32:01 +0300
committerGreg Ungerer <gerg@linux-m68k.org>2016-09-26 05:02:58 +0300
commite5f8d1f0a13dc8129bf8a0a3d715feabb0ce8c5e (patch)
tree3fcdf4233ced453b4d6f833eec1f6378ebb61a9e /arch/m68k/Kconfig
parent36d050d913333ea21e9728cbbc1fc07ae5be8d6c (diff)
downloadlinux-e5f8d1f0a13dc8129bf8a0a3d715feabb0ce8c5e.tar.xz
m68k: move CONFIG_FPU set to per-CPU configuration
Move the selection of CONFIG_FPU to each CPU type configuration. Currently for m68k we have a global set of CONFIG_FPU based on if CONFIG_MMU is enabled or not. There is at least one CPU family we support (m5441x) that has an MMU but has no FPU hardware. So we need to be able to have CONFIG_MMU set and CONFIG_FPU not set. Whether we build for a CPU with MMU enabled or not doesn't change the fact that it has FPU hardware support. Our current non-MMU builds have never had CONIG_FPU enabled - and in fact the kernel will not compile with that set and CONFIG_MMU not set at the moment. It is easy enough to fix this - but it would involve a structure change to sigcontext.h, and that is a user space exported header (so ABI change). This change makes no configuration visible changes, and all configs end up with the same configuration settings as before. This change based on changes and discussion from Yannick Gicquel <yannick.gicquel@open.eurogiciel.org>. Signed-off-by: Greg Ungerer <gerg@linux-m68k.org>
Diffstat (limited to 'arch/m68k/Kconfig')
-rw-r--r--arch/m68k/Kconfig1
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 498b567f007b..d140206d5d29 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -14,7 +14,6 @@ config M68K
select GENERIC_IOMAP
select GENERIC_STRNCPY_FROM_USER if MMU
select GENERIC_STRNLEN_USER if MMU
- select FPU if MMU
select ARCH_WANT_IPC_PARSE_VERSION
select ARCH_USES_GETTIMEOFFSET if MMU && !COLDFIRE
select HAVE_FUTEX_CMPXCHG if MMU && FUTEX