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-rw-r--r--arch/arm64/lib/copy_page.S11
1 files changed, 0 insertions, 11 deletions
diff --git a/arch/arm64/lib/copy_page.S b/arch/arm64/lib/copy_page.S
index c336d2ffde..6a56d7cf30 100644
--- a/arch/arm64/lib/copy_page.S
+++ b/arch/arm64/lib/copy_page.S
@@ -18,13 +18,6 @@
* x1 - src
*/
SYM_FUNC_START(__pi_copy_page)
-alternative_if ARM64_HAS_NO_HW_PREFETCH
- // Prefetch three cache lines ahead.
- prfm pldl1strm, [x1, #128]
- prfm pldl1strm, [x1, #256]
- prfm pldl1strm, [x1, #384]
-alternative_else_nop_endif
-
ldp x2, x3, [x1]
ldp x4, x5, [x1, #16]
ldp x6, x7, [x1, #32]
@@ -39,10 +32,6 @@ alternative_else_nop_endif
1:
tst x0, #(PAGE_SIZE - 1)
-alternative_if ARM64_HAS_NO_HW_PREFETCH
- prfm pldl1strm, [x1, #384]
-alternative_else_nop_endif
-
stnp x2, x3, [x0, #-256]
ldp x2, x3, [x1]
stnp x4, x5, [x0, #16 - 256]