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

1 files changed, 38 insertions, 10 deletions

diff --git a/arch/powerpc/mm/mmu_context_hash64.c b/arch/powerpc/mm/mmu_context_hash64.c
index 40bc5b0..178876ae 100644
--- a/arch/powerpc/mm/mmu_context_hash64.c
+++ b/arch/powerpc/mm/mmu_context_hash64.c
@@ -23,21 +23,13 @@
 #include <linux/slab.h>
 
 #include <asm/mmu_context.h>
+#include <asm/pgalloc.h>
 
 #include "icswx.h"
 
 static DEFINE_SPINLOCK(mmu_context_lock);
 static DEFINE_IDA(mmu_context_ida);
 
-/*
- * 256MB segment
- * The proto-VSID space has 2^(CONTEX_BITS + USER_ESID_BITS) - 1 segments
- * available for user mappings. Each segment contains 2^28 bytes. Each
- * context maps 2^46 bytes (64TB) so we can support 2^19-1 contexts
- * (19 == 37 + 28 - 46).
- */
-#define MAX_CONTEXT	((1UL << CONTEXT_BITS) - 1)
-
 int __init_new_context(void)
 {
 	int index;
@@ -56,7 +48,7 @@ again:
 	else if (err)
 		return err;
 
-	if (index > MAX_CONTEXT) {
+	if (index > MAX_USER_CONTEXT) {
 		spin_lock(&mmu_context_lock);
 		ida_remove(&mmu_context_ida, index);
 		spin_unlock(&mmu_context_lock);
@@ -94,6 +86,9 @@ int init_new_context(struct task_struct *tsk, struct mm_struct *mm)
 	spin_lock_init(mm->context.cop_lockp);
 #endif /* CONFIG_PPC_ICSWX */
 
+#ifdef CONFIG_PPC_64K_PAGES
+	mm->context.pte_frag = NULL;
+#endif
 	return 0;
 }
 
@@ -105,13 +100,46 @@ void __destroy_context(int context_id)
 }
 EXPORT_SYMBOL_GPL(__destroy_context);
 
+#ifdef CONFIG_PPC_64K_PAGES
+static void destroy_pagetable_page(struct mm_struct *mm)
+{
+	int count;
+	void *pte_frag;
+	struct page *page;
+
+	pte_frag = mm->context.pte_frag;
+	if (!pte_frag)
+		return;
+
+	page = virt_to_page(pte_frag);
+	/* drop all the pending references */
+	count = ((unsigned long)pte_frag & ~PAGE_MASK) >> PTE_FRAG_SIZE_SHIFT;
+	/* We allow PTE_FRAG_NR fragments from a PTE page */
+	count = atomic_sub_return(PTE_FRAG_NR - count, &page->_count);
+	if (!count) {
+		pgtable_page_dtor(page);
+		free_hot_cold_page(page, 0);
+	}
+}
+
+#else
+static inline void destroy_pagetable_page(struct mm_struct *mm)
+{
+	return;
+}
+#endif
+
+
 void destroy_context(struct mm_struct *mm)
 {
+
 #ifdef CONFIG_PPC_ICSWX
 	drop_cop(mm->context.acop, mm);
 	kfree(mm->context.cop_lockp);
 	mm->context.cop_lockp = NULL;
 #endif /* CONFIG_PPC_ICSWX */
+
+	destroy_pagetable_page(mm);
 	__destroy_context(mm->context.id);
 	subpage_prot_free(mm);
 	mm->context.id = MMU_NO_CONTEXT;