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Diffstat (limited to 'arch/arm/mm/copypage-xsc3.c')
-rw-r--r--arch/arm/mm/copypage-xsc3.c25
1 files changed, 13 insertions, 12 deletions
diff --git a/arch/arm/mm/copypage-xsc3.c b/arch/arm/mm/copypage-xsc3.c
index caa697ccd8db..0e7cb325ca4c 100644
--- a/arch/arm/mm/copypage-xsc3.c
+++ b/arch/arm/mm/copypage-xsc3.c
@@ -87,26 +87,27 @@ void xsc3_mc_copy_user_highpage(struct page *to, struct page *from,
87 * r0 = destination 87 * r0 = destination
88 * r1 = virtual user address of ultimate destination page 88 * r1 = virtual user address of ultimate destination page
89 */ 89 */
90void __attribute__((naked)) 90void xsc3_mc_clear_user_highpage(struct page *page, unsigned long vaddr)
91xsc3_mc_clear_user_page(void *kaddr, unsigned long vaddr)
92{ 91{
92 void *kaddr = kmap_atomic(page, KM_USER0);
93 asm("\ 93 asm("\
94 mov r1, %0 \n\ 94 mov r1, %1 \n\
95 mov r2, #0 \n\ 95 mov r2, #0 \n\
96 mov r3, #0 \n\ 96 mov r3, #0 \n\
971: mcr p15, 0, r0, c7, c6, 1 @ invalidate line\n\ 971: mcr p15, 0, %0, c7, c6, 1 @ invalidate line\n\
98 strd r2, [r0], #8 \n\ 98 strd r2, [%0], #8 \n\
99 strd r2, [r0], #8 \n\ 99 strd r2, [%0], #8 \n\
100 strd r2, [r0], #8 \n\ 100 strd r2, [%0], #8 \n\
101 strd r2, [r0], #8 \n\ 101 strd r2, [%0], #8 \n\
102 subs r1, r1, #1 \n\ 102 subs r1, r1, #1 \n\
103 bne 1b \n\ 103 bne 1b"
104 mov pc, lr"
105 : 104 :
106 : "I" (PAGE_SIZE / 32)); 105 : "r" (kaddr), "I" (PAGE_SIZE / 32)
106 : "r1", "r2", "r3");
107 kunmap_atomic(kaddr, KM_USER0);
107} 108}
108 109
109struct cpu_user_fns xsc3_mc_user_fns __initdata = { 110struct cpu_user_fns xsc3_mc_user_fns __initdata = {
110 .cpu_clear_user_page = xsc3_mc_clear_user_page, 111 .cpu_clear_user_highpage = xsc3_mc_clear_user_highpage,
111 .cpu_copy_user_highpage = xsc3_mc_copy_user_highpage, 112 .cpu_copy_user_highpage = xsc3_mc_copy_user_highpage,
112}; 113};