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arm: csumpartial: do a preload
authorGrazvydas Ignotas <notasas@gmail.com>
Sat, 4 Jul 2015 21:43:17 +0000 (00:43 +0300)
committerGrazvydas Ignotas <notasas@gmail.com>
Sun, 5 Jul 2015 20:33:35 +0000 (23:33 +0300)
seems to give slight performance improvement

arch/arm/lib/csumpartial.S patch | blob | history

diff --git a/arch/arm/lib/csumpartial.S b/arch/arm/lib/csumpartial.S
index 31d3cb3..ba9e754 100644 (file)
--- a/arch/arm/lib/csumpartial.S
+++ b/arch/arm/lib/csumpartial.S
@@ -125,6 +125,7 @@ ENTRY(csum_partial)
                adcs    sum, sum, td1
                adcs    sum, sum, td2
                adcs    sum, sum, td3
                adcs    sum, sum, td1
                adcs    sum, sum, td2
                adcs    sum, sum, td3
+       PLD(    pld     [buf, #128]             )
                sub     ip, ip, #32
                teq     ip, #0
                bne     2b
                sub     ip, ip, #32
                teq     ip, #0
                bne     2b
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