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ARM: PXA: fix multi-cpu build of xsc3

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On a kernel that includes both ARMv4 and XScale support,
the copypage function fails to build with invalid
instructions.

Since these are only called on an actual XScale processor,
annotate the assembly with the correct .arch directive.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Arnd Bergmann 2022-04-04 23:38:28 +02:00
parent 64dbc4dd7a
commit c8a9142894
1 changed files with 2 additions and 0 deletions
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2
arch/arm/mm/copypage-xsc3.c
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@ -29,6 +29,7 @@ static void xsc3_mc_copy_user_page(void *kto, const void *kfrom)
int tmp;
asm volatile ("\
.arch xscale \n\
pld [%1, #0] \n\
pld [%1, #32] \n\
1: pld [%1, #64] \n\
@ -80,6 +81,7 @@ void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
{
void *ptr, *kaddr = kmap_atomic(page);
asm volatile ("\
.arch xscale \n\
mov r1, %2 \n\
mov r2, #0 \n\
mov r3, #0 \n\