summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/pseries/suspend.c
diff options
context:
space:
mode:
authorScott Wood <scottwood@freescale.com>2013-11-01 21:17:16 (GMT)
committerScott Wood <scottwood@freescale.com>2013-11-03 22:47:10 (GMT)
commit31110de40dca4d4aeff4f253b3def948b88fa590 (patch)
tree0d811783836d52f15e37b4244de54f44ed4f93ad /arch/powerpc/platforms/pseries/suspend.c
parentae60d5d27c429b13cf28a09ab8b9d30682433c5a (diff)
parent8bb495e3f02401ee6f76d1b1d77f3ac9f079e376 (diff)
downloadlinux-fsl-qoriq-31110de40dca4d4aeff4f253b3def948b88fa590.tar.xz
Merge tag 'v3.10' into sdk-kernel-3.10
git rebase --continue Linux 3.10 Conflicts: Documentation/virtual/kvm/api.txt arch/ia64/kvm/Makefile arch/powerpc/Kconfig arch/powerpc/Makefile arch/powerpc/boot/dts/b4420qds.dts arch/powerpc/boot/dts/b4860qds.dts arch/powerpc/boot/dts/b4qds.dts arch/powerpc/boot/dts/fsl/b4420si-post.dtsi arch/powerpc/boot/dts/fsl/b4420si-pre.dtsi arch/powerpc/boot/dts/fsl/b4860si-post.dtsi arch/powerpc/boot/dts/fsl/b4860si-pre.dtsi arch/powerpc/boot/dts/fsl/b4si-post.dtsi arch/powerpc/boot/dts/fsl/p1010si-post.dtsi arch/powerpc/boot/dts/fsl/p2041si-post.dtsi arch/powerpc/boot/dts/fsl/p3041si-post.dtsi arch/powerpc/boot/dts/fsl/p4080si-post.dtsi arch/powerpc/boot/dts/fsl/p5020si-post.dtsi arch/powerpc/boot/dts/fsl/p5040si-post.dtsi arch/powerpc/boot/dts/fsl/qonverge-usb2-dr-0.dtsi arch/powerpc/boot/dts/fsl/qoriq-sec5.0-0.dtsi arch/powerpc/boot/dts/fsl/t4240si-post.dtsi arch/powerpc/boot/dts/fsl/t4240si-pre.dtsi arch/powerpc/boot/dts/p1025rdb_36b.dts arch/powerpc/boot/dts/t4240qds.dts arch/powerpc/configs/corenet64_smp_defconfig arch/powerpc/configs/mpc85xx_defconfig arch/powerpc/configs/mpc85xx_smp_defconfig arch/powerpc/include/asm/cputable.h arch/powerpc/include/asm/kvm_host.h arch/powerpc/include/asm/kvm_ppc.h arch/powerpc/include/asm/machdep.h arch/powerpc/include/uapi/asm/kvm.h arch/powerpc/kernel/cpu_setup_fsl_booke.S arch/powerpc/kernel/cputable.c arch/powerpc/kernel/idle.c arch/powerpc/kernel/pci-common.c arch/powerpc/kvm/Kconfig arch/powerpc/kvm/book3s.c arch/powerpc/kvm/booke.c arch/powerpc/kvm/e500.c arch/powerpc/kvm/e500_mmu.c arch/powerpc/kvm/e500_mmu_host.c arch/powerpc/kvm/e500mc.c arch/powerpc/kvm/emulate.c arch/powerpc/kvm/irq.h arch/powerpc/kvm/mpic.c arch/powerpc/kvm/powerpc.c arch/powerpc/mm/tlb_nohash.c arch/powerpc/platforms/85xx/Kconfig arch/powerpc/platforms/85xx/b4_qds.c arch/powerpc/platforms/85xx/t4240_qds.c arch/powerpc/platforms/pseries/smp.c arch/powerpc/sysdev/fsl_85xx_l2ctlr.c arch/powerpc/sysdev/fsl_msi.c arch/powerpc/sysdev/fsl_pci.c arch/powerpc/sysdev/fsl_pci.h arch/powerpc/sysdev/mpic.c arch/x86/kvm/Makefile arch/x86/kvm/x86.c drivers/Kconfig drivers/clk/Kconfig drivers/cpufreq/Makefile drivers/crypto/caam/caamalg.c drivers/crypto/caam/intern.h drivers/crypto/caam/jr.c drivers/crypto/caam/regs.h drivers/infiniband/ulp/ipoib/ipoib_ethtool.c drivers/iommu/Makefile drivers/iommu/amd_iommu.c drivers/iommu/exynos-iommu.c drivers/iommu/intel-iommu.c drivers/iommu/iommu.c drivers/iommu/msm_iommu.c drivers/iommu/omap-iommu.c drivers/iommu/tegra-gart.c drivers/iommu/tegra-smmu.c drivers/misc/Makefile drivers/mmc/card/block.c drivers/mmc/card/queue.c drivers/mmc/core/core.c drivers/mtd/nand/fsl_ifc_nand.c drivers/net/ethernet/3com/3c501.c drivers/net/ethernet/8390/3c503.c drivers/net/ethernet/dec/ewrk3.c drivers/net/ethernet/freescale/fec.c drivers/net/ethernet/freescale/gianfar.c drivers/net/ethernet/freescale/gianfar.h drivers/net/ethernet/i825xx/3c505.c drivers/net/ethernet/i825xx/3c507.c drivers/rtc/rtc-ds3232.c drivers/s390/net/qeth_core_main.c drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/ccg/u_ether.c drivers/usb/gadget/fsl_udc_core.c drivers/usb/otg/fsl_otg.c drivers/vfio/vfio.c drivers/watchdog/Kconfig include/linux/iommu.h include/linux/kvm_host.h include/linux/mmc/sdhci.h include/linux/msi.h include/linux/netdev_features.h include/linux/pci.h include/linux/skbuff.h include/net/ip6_route.h include/net/sch_generic.h include/net/xfrm.h include/uapi/linux/kvm.h net/core/netpoll.c virt/kvm/irqchip.c virt/kvm/kvm_main.c
Diffstat (limited to 'arch/powerpc/platforms/pseries/suspend.c')
-rw-r--r--arch/powerpc/platforms/pseries/suspend.c22
1 files changed, 22 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index 47226e0..5f997e7 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -16,6 +16,7 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/cpu.h>
#include <linux/delay.h>
#include <linux/suspend.h>
#include <linux/stat.h>
@@ -126,11 +127,15 @@ static ssize_t store_hibernate(struct device *dev,
struct device_attribute *attr,
const char *buf, size_t count)
{
+ cpumask_var_t offline_mask;
int rc;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
+ if (!alloc_cpumask_var(&offline_mask, GFP_TEMPORARY))
+ return -ENOMEM;
+
stream_id = simple_strtoul(buf, NULL, 16);
do {
@@ -140,15 +145,32 @@ static ssize_t store_hibernate(struct device *dev,
} while (rc == -EAGAIN);
if (!rc) {
+ /* All present CPUs must be online */
+ cpumask_andnot(offline_mask, cpu_present_mask,
+ cpu_online_mask);
+ rc = rtas_online_cpus_mask(offline_mask);
+ if (rc) {
+ pr_err("%s: Could not bring present CPUs online.\n",
+ __func__);
+ goto out;
+ }
+
stop_topology_update();
rc = pm_suspend(PM_SUSPEND_MEM);
start_topology_update();
+
+ /* Take down CPUs not online prior to suspend */
+ if (!rtas_offline_cpus_mask(offline_mask))
+ pr_warn("%s: Could not restore CPUs to offline "
+ "state.\n", __func__);
}
stream_id = 0;
if (!rc)
rc = count;
+out:
+ free_cpumask_var(offline_mask);
return rc;
}