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authorTrilok Soni <tsoni@codeaurora.org>2016-09-02 12:21:28 -0700
committerTrilok Soni <tsoni@codeaurora.org>2016-09-02 12:21:28 -0700
commitea78c2d2d90b7ca377b73e6f337037859369307e (patch)
tree798def909009717bdd0443b3f59d2f9e83595f6d
parentab26d098793adbf90b77d414663e34ac0c7315f6 (diff)
arm64: Prevent msm-rtb tracing in memcpy_{from,to}io and memset_io
Use the no-log variants of the read{b,q,l}/write{b,q,l} APIs to prevent flooding the MSM register trace buffer (RTB) logs with memcpy/memset induced logging. Change-Id: I16556e1d6f4abe00e6f33b8375a5a1839dfca34e Signed-off-by: Trilok Soni <tsoni@codeaurora.org>
-rw-r--r--arch/arm64/kernel/io.c18
1 files changed, 9 insertions, 9 deletions
diff --git a/arch/arm64/kernel/io.c b/arch/arm64/kernel/io.c
index aeb0f25c9289..471fb3cb8c5f 100644
--- a/arch/arm64/kernel/io.c
+++ b/arch/arm64/kernel/io.c
@@ -28,21 +28,21 @@ void __memcpy_fromio(void *to, const volatile void __iomem *from, size_t count)
{
while (count && (!IS_ALIGNED((unsigned long)from, 8) ||
!IS_ALIGNED((unsigned long)to, 8))) {
- *(u8 *)to = __raw_readb(from);
+ *(u8 *)to = __raw_readb_no_log(from);
from++;
to++;
count--;
}
while (count >= 8) {
- *(u64 *)to = __raw_readq(from);
+ *(u64 *)to = __raw_readq_no_log(from);
from += 8;
to += 8;
count -= 8;
}
while (count) {
- *(u8 *)to = __raw_readb(from);
+ *(u8 *)to = __raw_readb_no_log(from);
from++;
to++;
count--;
@@ -57,21 +57,21 @@ void __memcpy_toio(volatile void __iomem *to, const void *from, size_t count)
{
while (count && (!IS_ALIGNED((unsigned long)to, 8) ||
!IS_ALIGNED((unsigned long)from, 8))) {
- __raw_writeb(*(volatile u8 *)from, to);
+ __raw_writeb_no_log(*(volatile u8 *)from, to);
from++;
to++;
count--;
}
while (count >= 8) {
- __raw_writeq(*(volatile u64 *)from, to);
+ __raw_writeq_no_log(*(volatile u64 *)from, to);
from += 8;
to += 8;
count -= 8;
}
while (count) {
- __raw_writeb(*(volatile u8 *)from, to);
+ __raw_writeb_no_log(*(volatile u8 *)from, to);
from++;
to++;
count--;
@@ -91,19 +91,19 @@ void __memset_io(volatile void __iomem *dst, int c, size_t count)
qc |= qc << 32;
while (count && !IS_ALIGNED((unsigned long)dst, 8)) {
- __raw_writeb(c, dst);
+ __raw_writeb_no_log(c, dst);
dst++;
count--;
}
while (count >= 8) {
- __raw_writeq(qc, dst);
+ __raw_writeq_no_log(qc, dst);
dst += 8;
count -= 8;
}
while (count) {
- __raw_writeb(c, dst);
+ __raw_writeb_no_log(c, dst);
dst++;
count--;
}