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powerpc/64s: Set assembler machine type to POWER4

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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>
This commit is contained in:
Nicholas Piggin
2018-02-21 05:08:26 +10:00
committed by Michael Ellerman
parent d50614fa45
commit 15a3204d24
11 changed files with 18 additions and 27 deletions
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2
arch/powerpc/lib/copyuser_64.S
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@@ -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