diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2018-02-21 05:08:26 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-04-01 00:47:49 +1100 |
| commit | 15a3204d24a3c01b116fb7c0692b7c670cac631d (patch) | |
| tree | c5f46ce738a1044d00b647f0d967c336cc303c62 /arch/powerpc/lib/copyuser_64.S | |
| parent | d50614fa45760f5ec1772509625e1bf4abe5d052 (diff) | |
powerpc/64s: Set assembler machine type to POWER4
Rather than override the machine type in .S code (which can hide wrong
or ambiguous code generation for the target), set the type to power4
for all assembly.
This also means we need to be careful not to build power4-only code
when we're not building for Book3S, such as the "power7" versions of
copyuser/page/memcpy.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Fix Book3E build, don't build the "power7" variants for non-Book3S]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib/copyuser_64.S')
| -rw-r--r-- | arch/powerpc/lib/copyuser_64.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/lib/copyuser_64.S b/arch/powerpc/lib/copyuser_64.S index 08da06e1bd72..506677395681 100644 --- a/arch/powerpc/lib/copyuser_64.S +++ b/arch/powerpc/lib/copyuser_64.S @@ -20,11 +20,13 @@ .align 7 _GLOBAL_TOC(__copy_tofrom_user) +#ifdef CONFIG_PPC_BOOK3S_64 BEGIN_FTR_SECTION nop FTR_SECTION_ELSE b __copy_tofrom_user_power7 ALT_FTR_SECTION_END_IFCLR(CPU_FTR_VMX_COPY) +#endif _GLOBAL(__copy_tofrom_user_base) /* first check for a whole page copy on a page boundary */ cmpldi cr1,r5,16 |