|
 |
fc9b0e |
From adb3feea5dde087d7bb8017e5b8da2da548473bf Mon Sep 17 00:00:00 2001
|
|
|
fc9b0e |
Message-Id: <adb3feea5dde087d7bb8017e5b8da2da548473bf.1566225007.git.aquini@redhat.com>
|
|
|
fc9b0e |
In-Reply-To: <d42f467a923dfc09309acb7a83b42e3285fbd8f4.1566225007.git.aquini@redhat.com>
|
|
|
fc9b0e |
References: <d42f467a923dfc09309acb7a83b42e3285fbd8f4.1566225007.git.aquini@redhat.com>
|
|
|
fc9b0e |
From: Sandipan Das <sandipan@linux.ibm.com>
|
|
|
fc9b0e |
Date: Wed, 12 Jun 2019 12:34:32 +0530
|
|
|
fc9b0e |
Subject: [RHEL7 PATCH 15/31] ld.hugetlbfs: powerpc64: Add support for
|
|
|
fc9b0e |
different huge page sizes
|
|
|
fc9b0e |
|
|
|
fc9b0e |
This ensures that the page and slice sizes are determined by
|
|
|
fc9b0e |
looking at the default huge page size and MMU type rather than
|
|
|
fc9b0e |
having them hardcoded.
|
|
|
fc9b0e |
|
|
|
fc9b0e |
This is important because powerpc64 supports different huge
|
|
|
fc9b0e |
page sizes based on the MMU type. Hash MMU supports 16MB and
|
|
|
fc9b0e |
16GB whereas Radix MMU supports 2MB and 1GB.
|
|
|
fc9b0e |
|
|
|
fc9b0e |
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
|
|
|
fc9b0e |
Signed-off-by: Eric B Munson <emunson@mgebm.net>
|
|
|
fc9b0e |
Signed-off-by: Rafael Aquini <aquini@redhat.com>
|
|
|
fc9b0e |
---
|
|
|
fc9b0e |
ld.hugetlbfs | 17 +++++++++++++++--
|
|
|
fc9b0e |
1 file changed, 15 insertions(+), 2 deletions(-)
|
|
|
fc9b0e |
|
|
|
fc9b0e |
diff --git a/ld.hugetlbfs b/ld.hugetlbfs
|
|
|
fc9b0e |
index 388f7b4..6ee8238 100755
|
|
|
fc9b0e |
--- a/ld.hugetlbfs
|
|
|
fc9b0e |
+++ b/ld.hugetlbfs
|
|
|
fc9b0e |
@@ -105,8 +105,16 @@ fi
|
|
|
fc9b0e |
|
|
|
fc9b0e |
MB=$((1024*1024))
|
|
|
fc9b0e |
case "$EMU" in
|
|
|
fc9b0e |
-elf32ppclinux|elf64ppc) HPAGE_SIZE=$((16*$MB)) SLICE_SIZE=$((256*$MB)) ;;
|
|
|
fc9b0e |
-elf64lppc) HPAGE_SIZE=$((16*$MB)) SLICE_SIZE=$((256*$MB)) ;;
|
|
|
fc9b0e |
+elf32ppclinux) HPAGE_SIZE=$((16*$MB)) SLICE_SIZE=$((256*$MB)) ;;
|
|
|
fc9b0e |
+elf64ppc|elf64lppc)
|
|
|
fc9b0e |
+ hpage_kb=$(cat /proc/meminfo | grep Hugepagesize: | awk '{print $2}')
|
|
|
fc9b0e |
+ MMU_TYPE=$(cat /proc/cpuinfo | grep MMU | awk '{ print $3}')
|
|
|
fc9b0e |
+ HPAGE_SIZE=$((hpage_kb * 1024))
|
|
|
fc9b0e |
+ if [ "$MMU_TYPE" == "Hash" ] ; then
|
|
|
fc9b0e |
+ SLICE_SIZE=$((256*$MB))
|
|
|
fc9b0e |
+ else
|
|
|
fc9b0e |
+ SLICE_SIZE=$HPAGE_SIZE
|
|
|
fc9b0e |
+ fi ;;
|
|
|
fc9b0e |
elf_i386|elf_x86_64) HPAGE_SIZE=$((4*$MB)) SLICE_SIZE=$HPAGE_SIZE ;;
|
|
|
fc9b0e |
elf_s390|elf64_s390) HPAGE_SIZE=$((1*$MB)) SLICE_SIZE=$HPAGE_SIZE ;;
|
|
|
fc9b0e |
armelf*_linux_eabi|aarch64elf*|aarch64linux*)
|
|
|
fc9b0e |
@@ -124,6 +132,11 @@ if [ "$HTLB_ALIGN" == "slice" ]; then
|
|
|
fc9b0e |
case "$EMU" in
|
|
|
fc9b0e |
armelf*_linux_eabi|aarch64elf*|aarch64linux*) HTLBOPTS="$HTLBOPTS -Ttext-segment=$SLICE_SIZE" ;;
|
|
|
fc9b0e |
elf_i386) HTLBOPTS="$HTLBOPTS -Ttext-segment=0x08000000" ;;
|
|
|
fc9b0e |
+ elf64ppc|elf64lppc)
|
|
|
fc9b0e |
+ if [ "$MMU_TYPE" == "Hash" ] ; then
|
|
|
fc9b0e |
+ printf -v TEXTADDR "%x" "$SLICE_SIZE"
|
|
|
fc9b0e |
+ HTLBOPTS="$HTLBOPTS -Ttext-segment=$TEXTADDR"
|
|
|
fc9b0e |
+ fi ;;
|
|
|
fc9b0e |
esac
|
|
|
fc9b0e |
fi
|
|
|
fc9b0e |
|
|
|
fc9b0e |
--
|
|
|
fc9b0e |
1.8.3.1
|
|
|
fc9b0e |
|