From: Grazvydas Ignotas <notasas@gmail.com>
Date: Fri, 24 Aug 2012 21:45:36 +0000 (+0300)
Subject: pandora-scripts: add a script for hugetlb allocation
X-Git-Tag: sz_152~33
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=12e5c4fa8e3c6637e1db0f7e17689fec978412fa;p=openpandora.oe.git

pandora-scripts: add a script for hugetlb allocation
---

diff --git a/recipes/pandora-system/pandora-scripts.bb b/recipes/pandora-system/pandora-scripts.bb
index 92a2258..4802b2c 100644
--- a/recipes/pandora-system/pandora-scripts.bb
+++ b/recipes/pandora-system/pandora-scripts.bb
@@ -6,7 +6,7 @@ COMPATIBLE_MACHINE = "omap3-pandora"
 DEPENDS = "zenity dbus"
 RDEPENDS = "zenity dbus"
 
-PR = "r111"
+PR = "r112"
 
 SRC_URI = " \
           file://op_paths.sh \
@@ -84,6 +84,7 @@ SRC_URI = " \
 	  file://op_bright_up.sh \  
 	  file://op_menu.sh \ 
 	  file://op_xfcemenu.sh \
+	  file://op_hugetlb.sh \
 "
 
 do_install() {
@@ -117,6 +118,7 @@ do_install() {
 	  install -m 0755 ${WORKDIR}/op_bright_up.sh ${D}${prefix}/pandora/scripts/  
 	  install -m 0755 ${WORKDIR}/op_menu.sh ${D}${prefix}/pandora/scripts/ 
 	  install -m 0755 ${WORKDIR}/op_xfcemenu.sh ${D}${prefix}/pandora/scripts/ 
+	  install -m 0755 ${WORKDIR}/op_hugetlb.sh ${D}${prefix}/pandora/scripts/
 	  install -m 0755 ${WORKDIR}/reset_nubs.sh ${D}${prefix}/pandora/scripts/ 
 	  install -m 0644 ${WORKDIR}/pndlogo.png ${D}${prefix}/pandora/scripts/ 
 	  install -m 0755 ${WORKDIR}/ConfigModel.py ${D}${prefix}/pandora/scripts/
diff --git a/recipes/pandora-system/pandora-scripts/op_hugetlb.sh b/recipes/pandora-system/pandora-scripts/op_hugetlb.sh
new file mode 100755
index 0000000..a9f9ea5
--- /dev/null
+++ b/recipes/pandora-system/pandora-scripts/op_hugetlb.sh
@@ -0,0 +1,37 @@
+#!/bin/sh
+
+if [ "$#" -ne "1" ]; then
+	echo "usage: $0 <megabytes>"
+	exit 1
+fi
+
+if ! [ -e /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages ]; then
+	echo "hugetlb error: no hugetlb support in kernel"
+	exit 1
+fi
+
+pages_needed=$(( ($1 + 1) / 2 ))
+
+# find amount of pages reserved or in use
+pages_nr=`cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages`
+pages_free=`cat /sys/kernel/mm/hugepages/hugepages-2048kB/free_hugepages`
+pages_resv=`cat /sys/kernel/mm/hugepages/hugepages-2048kB/resv_hugepages`
+
+pages_inuse_before=$(($pages_nr - $pages_free + $pages_resv))
+pages_inuse_after=$(($pages_inuse_before + $pages_needed))
+
+for a in `seq 5`; do
+	echo $pages_inuse_after > /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages
+	sleep .2
+	pages_nr=`cat /sys/kernel/mm/hugepages/hugepages-2048kB/nr_hugepages`
+
+	if [ "$pages_nr" = "$pages_inuse_after" ]; then
+		break
+	fi
+done
+
+if [ "$pages_nr" != "$pages_inuse_after" ]; then
+	echo "hugetlb error: could not alloc $pages_inuse_after pages (got $pages_nr)"
+else
+	echo "hugetlb: $pages_nr pages allocated."
+fi
diff --git a/recipes/pandora-system/pandora-sudoers.bb b/recipes/pandora-system/pandora-sudoers.bb
index 1a009e9..61a5c05 100644
--- a/recipes/pandora-system/pandora-sudoers.bb
+++ b/recipes/pandora-system/pandora-sudoers.bb
@@ -5,7 +5,7 @@ COMPATIBLE_MACHINE = "omap3-pandora"
 
 RDEPENDS = "sudo"
 
-PR = "r17"
+PR = "r18"
 
 SRC_URI = " \
           file://50_openpandora \
diff --git a/recipes/pandora-system/pandora-sudoers/50_openpandora b/recipes/pandora-system/pandora-sudoers/50_openpandora
index b37a5fc..1e572b5 100755
--- a/recipes/pandora-system/pandora-sudoers/50_openpandora
+++ b/recipes/pandora-system/pandora-sudoers/50_openpandora
@@ -30,3 +30,4 @@
 %wheel ALL=(ALL) NOPASSWD: /usr/pandora/scripts/op_bluetooth_work.sh
 %wheel ALL=(ALL) NOPASSWD: /usr/pandora/scripts/pnd_run.sh
 %wheel ALL=(ALL) NOPASSWD: /usr/pandora/scripts/op_touchinit.sh
+%wheel ALL=(ALL) NOPASSWD: /usr/pandora/scripts/op_hugetlb.sh