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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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3
arch/powerpc/lib/memcpy_power7.S
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@ -259,15 +259,12 @@ _GLOBAL(memcpy_power7)
lis r8,0x8000 /* GO=1 */
clrldi r8,r8,32
.machine push
.machine "power4"
dcbt 0,r6,0b01000
dcbt 0,r7,0b01010
dcbtst 0,r9,0b01000
dcbtst 0,r10,0b01010
eieio
dcbt 0,r8,0b01010 /* GO */
.machine pop
beq cr1,.Lunwind_stack_nonvmx_copy