Merge branch 'core/xen' into x86/urgent

14 files changed, 81 insertions, 37 deletions

diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index 9937fe44555f..19ee491e9e23 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -56,6 +56,10 @@
 #include "head_booke.h"
 #endif
 
+#if defined(CONFIG_FSL_BOOKE)
+#include "../mm/mmu_decl.h"
+#endif
+
 int main(void)
 {
 	DEFINE(THREAD, offsetof(struct task_struct, thread));
@@ -382,6 +386,9 @@ int main(void)
 	DEFINE(PGD_T_LOG2, PGD_T_LOG2);
 	DEFINE(PTE_T_LOG2, PTE_T_LOG2);
 #endif
+#ifdef CONFIG_FSL_BOOKE
+	DEFINE(TLBCAM_SIZE, sizeof(struct tlbcam));
+#endif
 
 #ifdef CONFIG_KVM_EXIT_TIMING
 	DEFINE(VCPU_TIMING_EXIT_TBU, offsetof(struct kvm_vcpu,
diff --git a/arch/powerpc/kernel/cacheinfo.c b/arch/powerpc/kernel/cacheinfo.c
index b33f0417a4bf..bb37b1d19a58 100644
--- a/arch/powerpc/kernel/cacheinfo.c
+++ b/arch/powerpc/kernel/cacheinfo.c
@@ -113,7 +113,7 @@ struct cache {
 	struct cache *next_local;      /* next cache of >= level */
 };
 
-static DEFINE_PER_CPU(struct cache_dir *, cache_dir);
+static DEFINE_PER_CPU(struct cache_dir *, cache_dir_pcpu);
 
 /* traversal/modification of this list occurs only at cpu hotplug time;
  * access is serialized by cpu hotplug locking
@@ -468,9 +468,9 @@ static struct cache_dir *__cpuinit cacheinfo_create_cache_dir(unsigned int cpu_i
 
 	cache_dir->kobj = kobj;
 
-	WARN_ON_ONCE(per_cpu(cache_dir, cpu_id) != NULL);
+	WARN_ON_ONCE(per_cpu(cache_dir_pcpu, cpu_id) != NULL);
 
-	per_cpu(cache_dir, cpu_id) = cache_dir;
+	per_cpu(cache_dir_pcpu, cpu_id) = cache_dir;
 
 	return cache_dir;
 err:
@@ -820,13 +820,13 @@ void cacheinfo_cpu_offline(unsigned int cpu_id)
 
 	/* Prevent userspace from seeing inconsistent state - remove
 	 * the sysfs hierarchy first */
-	cache_dir = per_cpu(cache_dir, cpu_id);
+	cache_dir = per_cpu(cache_dir_pcpu, cpu_id);
 
 	/* careful, sysfs population may have failed */
 	if (cache_dir)
 		remove_cache_dir(cache_dir);
 
-	per_cpu(cache_dir, cpu_id) = NULL;
+	per_cpu(cache_dir_pcpu, cpu_id) = NULL;
 
 	/* clear the CPU's bit in its cache chain, possibly freeing
 	 * cache objects */
diff --git a/arch/powerpc/kernel/dma-iommu.c b/arch/powerpc/kernel/dma-iommu.c
index 14183af1b3fb..2983adac8cc3 100644
--- a/arch/powerpc/kernel/dma-iommu.c
+++ b/arch/powerpc/kernel/dma-iommu.c
@@ -79,10 +79,10 @@ static int dma_iommu_dma_supported(struct device *dev, u64 mask)
 		       "Warning: IOMMU offset too big for device mask\n");
 		if (tbl)
 			printk(KERN_INFO
-			       "mask: 0x%08lx, table offset: 0x%08lx\n",
+			       "mask: 0x%08llx, table offset: 0x%08lx\n",
 				mask, tbl->it_offset);
 		else
-			printk(KERN_INFO "mask: 0x%08lx, table unavailable\n",
+			printk(KERN_INFO "mask: 0x%08llx, table unavailable\n",
 				mask);
 		return 0;
 	} else
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index b4bcf5a930fa..ebaedafc8e67 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -1518,6 +1518,15 @@ _GLOBAL(pmac_secondary_start)
 	/* turn on 64-bit mode */
 	bl	.enable_64b_mode
 
+	li	r0,0
+	mfspr	r3,SPRN_HID4
+	rldimi	r3,r0,40,23	/* clear bit 23 (rm_ci) */
+	sync
+	mtspr	SPRN_HID4,r3
+	isync
+	sync
+	slbia
+
 	/* get TOC pointer (real address) */
 	bl	.relative_toc
 
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 11b549acc034..36ffb3504a4f 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -389,10 +389,6 @@ skpinv:	addi	r6,r6,1				/* Increment */
 #endif
 #endif
 
-	mfspr	r3,SPRN_TLB1CFG
-	andi.	r3,r3,0xfff
-	lis	r4,num_tlbcam_entries@ha
-	stw	r3,num_tlbcam_entries@l(r4)
 /*
  * Decide what sort of machine this is and initialize the MMU.
  */
@@ -711,7 +707,7 @@ interrupt_base:
 	EXCEPTION(0x2060, PerformanceMonitor, performance_monitor_exception, EXC_XFER_STD)
 
 #ifdef CONFIG_PPC_E500MC
-	EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_EE)
+	EXCEPTION(0x2070, Doorbell, unknown_exception, EXC_XFER_STD)
 #endif
 
 	/* Debug Interrupt */
@@ -909,7 +905,7 @@ KernelSPE:
 _GLOBAL(loadcam_entry)
 	lis	r4,TLBCAM@ha
 	addi	r4,r4,TLBCAM@l
-	mulli	r5,r3,20
+	mulli	r5,r3,TLBCAM_SIZE
 	add	r3,r5,r4
 	lwz	r4,0(r3)
 	mtspr	SPRN_MAS0,r4
diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 1bfa706b96e7..fd51578e29dd 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -239,12 +239,12 @@ static void __iommu_free(struct iommu_table *tbl, dma_addr_t dma_addr,
 		if (printk_ratelimit()) {
 			printk(KERN_INFO "iommu_free: invalid entry\n");
 			printk(KERN_INFO "\tentry     = 0x%lx\n", entry); 
-			printk(KERN_INFO "\tdma_addr  = 0x%lx\n", (u64)dma_addr);
-			printk(KERN_INFO "\tTable     = 0x%lx\n", (u64)tbl);
-			printk(KERN_INFO "\tbus#      = 0x%lx\n", (u64)tbl->it_busno);
-			printk(KERN_INFO "\tsize      = 0x%lx\n", (u64)tbl->it_size);
-			printk(KERN_INFO "\tstartOff  = 0x%lx\n", (u64)tbl->it_offset);
-			printk(KERN_INFO "\tindex     = 0x%lx\n", (u64)tbl->it_index);
+			printk(KERN_INFO "\tdma_addr  = 0x%llx\n", (u64)dma_addr);
+			printk(KERN_INFO "\tTable     = 0x%llx\n", (u64)tbl);
+			printk(KERN_INFO "\tbus#      = 0x%llx\n", (u64)tbl->it_busno);
+			printk(KERN_INFO "\tsize      = 0x%llx\n", (u64)tbl->it_size);
+			printk(KERN_INFO "\tstartOff  = 0x%llx\n", (u64)tbl->it_offset);
+			printk(KERN_INFO "\tindex     = 0x%llx\n", (u64)tbl->it_index);
 			WARN_ON(1);
 		}
 		return;
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index d051e8cbcd03..182e0f642f36 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -240,7 +240,7 @@ static void parse_ppp_data(struct seq_file *m)
 	if (rc)
 		return;
 
-	seq_printf(m, "partition_entitled_capacity=%ld\n",
+	seq_printf(m, "partition_entitled_capacity=%lld\n",
 	           ppp_data.entitlement);
 	seq_printf(m, "group=%d\n", ppp_data.group_num);
 	seq_printf(m, "system_active_processors=%d\n",
@@ -265,7 +265,7 @@ static void parse_ppp_data(struct seq_file *m)
 		   ppp_data.unallocated_weight);
 	seq_printf(m, "capacity_weight=%d\n", ppp_data.weight);
 	seq_printf(m, "capped=%d\n", ppp_data.capped);
-	seq_printf(m, "unallocated_capacity=%ld\n",
+	seq_printf(m, "unallocated_capacity=%lld\n",
 		   ppp_data.unallocated_entitlement);
 }
 
@@ -509,10 +509,10 @@ static ssize_t update_ppp(u64 *entitlement, u8 *weight)
 	} else
 		return -EINVAL;
 
-	pr_debug("%s: current_entitled = %lu, current_weight = %u\n",
+	pr_debug("%s: current_entitled = %llu, current_weight = %u\n",
 		 __func__, ppp_data.entitlement, ppp_data.weight);
 
-	pr_debug("%s: new_entitled = %lu, new_weight = %u\n",
+	pr_debug("%s: new_entitled = %llu, new_weight = %u\n",
 		 __func__, new_entitled, new_weight);
 
 	retval = plpar_hcall_norets(H_SET_PPP, new_entitled, new_weight);
@@ -558,7 +558,7 @@ static ssize_t update_mpp(u64 *entitlement, u8 *weight)
 	pr_debug("%s: current_entitled = %lu, current_weight = %u\n",
 	         __func__, mpp_data.entitled_mem, mpp_data.mem_weight);
 
-	pr_debug("%s: new_entitled = %lu, new_weight = %u\n",
+	pr_debug("%s: new_entitled = %llu, new_weight = %u\n",
 		 __func__, new_entitled, new_weight);
 
 	rc = plpar_hcall_norets(H_SET_MPP, new_entitled, new_weight);
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index b3abebb7ee64..d59e2b1bdcba 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -93,10 +93,35 @@ void __init reserve_crashkernel(void)
 				KDUMP_KERNELBASE);
 
 	crashk_res.start = KDUMP_KERNELBASE;
+#else
+	if (!crashk_res.start) {
+		/*
+		 * unspecified address, choose a region of specified size
+		 * can overlap with initrd (ignoring corruption when retained)
+		 * ppc64 requires kernel and some stacks to be in first segemnt
+		 */
+		crashk_res.start = KDUMP_KERNELBASE;
+	}
+
+	crash_base = PAGE_ALIGN(crashk_res.start);
+	if (crash_base != crashk_res.start) {
+		printk("Crash kernel base must be aligned to 0x%lx\n",
+				PAGE_SIZE);
+		crashk_res.start = crash_base;
+	}
+
 #endif
 	crash_size = PAGE_ALIGN(crash_size);
 	crashk_res.end = crashk_res.start + crash_size - 1;
 
+	/* The crash region must not overlap the current kernel */
+	if (overlaps_crashkernel(__pa(_stext), _end - _stext)) {
+		printk(KERN_WARNING
+			"Crash kernel can not overlap current kernel\n");
+		crashk_res.start = crashk_res.end = 0;
+		return;
+	}
+
 	/* Crash kernel trumps memory limit */
 	if (memory_limit && memory_limit <= crashk_res.end) {
 		memory_limit = crashk_res.end + 1;
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index da5a3855a0c4..19b12d2cbb4b 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -16,8 +16,6 @@
  * 2 of the License, or (at your option) any later version.
  */
 
-#define DEBUG
-
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/string.h>
@@ -258,7 +256,8 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
 			 oirq.size, oirq.specifier[0], oirq.specifier[1],
-		    oirq.controller->full_name);
+			 oirq.controller ? oirq.controller->full_name :
+			 "<default>");
 
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 586962f65c2a..ea8eda8c87cf 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -470,7 +470,7 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 	if (bus->self) {
 		pr_debug("IO mapping for PCI-PCI bridge %s\n",
 			 pci_name(bus->self));
-		pr_debug("  virt=0x%016lx...0x%016lx\n",
+		pr_debug("  virt=0x%016llx...0x%016llx\n",
 			 bus->resource[0]->start + _IO_BASE,
 			 bus->resource[0]->end + _IO_BASE);
 		return 0;
@@ -502,7 +502,7 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 					      hose->io_base_phys - phys_page);
 
 	pr_debug("IO mapping for PHB %s\n", hose->dn->full_name);
-	pr_debug("  phys=0x%016lx, virt=0x%p (alloc=0x%p)\n",
+	pr_debug("  phys=0x%016llx, virt=0x%p (alloc=0x%p)\n",
 		 hose->io_base_phys, hose->io_base_virt, hose->io_base_alloc);
 	pr_debug("  size=0x%016lx (alloc=0x%016lx)\n",
 		 hose->pci_io_size, size_page);
@@ -517,7 +517,7 @@ int __devinit pcibios_map_io_space(struct pci_bus *bus)
 	hose->io_resource.start += io_virt_offset;
 	hose->io_resource.end += io_virt_offset;
 
-	pr_debug("  hose->io_resource=0x%016lx...0x%016lx\n",
+	pr_debug("  hose->io_resource=0x%016llx...0x%016llx\n",
 		 hose->io_resource.start, hose->io_resource.end);
 
 	return 0;
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index c09cffafb6ee..f00f83109ab3 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -590,6 +590,11 @@ static void __init check_cpu_slb_size(unsigned long node)
 {
 	u32 *slb_size_ptr;
 
+	slb_size_ptr = of_get_flat_dt_prop(node, "slb-size", NULL);
+	if (slb_size_ptr != NULL) {
+		mmu_slb_size = *slb_size_ptr;
+		return;
+	}
 	slb_size_ptr = of_get_flat_dt_prop(node, "ibm,slb-size", NULL);
 	if (slb_size_ptr != NULL) {
 		mmu_slb_size = *slb_size_ptr;
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index d8bd2161e738..2d34196bba8c 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -434,8 +434,8 @@ void __init setup_system(void)
 	printk("Starting Linux PPC64 %s\n", init_utsname()->version);
 
 	printk("-----------------------------------------------------\n");
-	printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
-	printk("physicalMemorySize            = 0x%lx\n", lmb_phys_mem_size());
+	printk("ppc64_pft_size                = 0x%llx\n", ppc64_pft_size);
+	printk("physicalMemorySize            = 0x%llx\n", lmb_phys_mem_size());
 	if (ppc64_caches.dline_size != 0x80)
 		printk("ppc64_caches.dcache_line_size = 0x%x\n",
 		       ppc64_caches.dline_size);
@@ -493,7 +493,7 @@ static void __init emergency_stack_init(void)
 	 * bringup, we need to get at them in real mode. This means they
 	 * must also be within the RMO region.
 	 */
-	limit = min(0x10000000UL, lmb.rmo_size);
+	limit = min(0x10000000ULL, lmb.rmo_size);
 
 	for_each_possible_cpu(i) {
 		unsigned long sp;
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 94aa7b011b27..d3694498f3af 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -492,14 +492,14 @@ static void *vio_dma_iommu_alloc_coherent(struct device *dev, size_t size,
 	struct vio_dev *viodev = to_vio_dev(dev);
 	void *ret;
 
-	if (vio_cmo_alloc(viodev, roundup(size, IOMMU_PAGE_SIZE))) {
+	if (vio_cmo_alloc(viodev, roundup(size, PAGE_SIZE))) {
 		atomic_inc(&viodev->cmo.allocs_failed);
 		return NULL;
 	}
 
 	ret = dma_iommu_ops.alloc_coherent(dev, size, dma_handle, flag);
 	if (unlikely(ret == NULL)) {
-		vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
+		vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE));
 		atomic_inc(&viodev->cmo.allocs_failed);
 	}
 
@@ -513,7 +513,7 @@ static void vio_dma_iommu_free_coherent(struct device *dev, size_t size,
 
 	dma_iommu_ops.free_coherent(dev, size, vaddr, dma_handle);
 
-	vio_cmo_dealloc(viodev, roundup(size, IOMMU_PAGE_SIZE));
+	vio_cmo_dealloc(viodev, roundup(size, PAGE_SIZE));
 }
 
 static dma_addr_t vio_dma_iommu_map_page(struct device *dev, struct page *page,
@@ -572,6 +572,7 @@ static int vio_dma_iommu_map_sg(struct device *dev, struct scatterlist *sglist,
 	if (unlikely(!ret)) {
 		vio_cmo_dealloc(viodev, alloc_size);
 		atomic_inc(&viodev->cmo.allocs_failed);
+		return ret;
 	}
 
 	for (sgl = sglist, count = 0; count < ret; count++, sgl++)
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 47bf15cd2c9e..161b9b9691f0 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -87,7 +87,9 @@ SECTIONS
 	/* The dummy segment contents for the bug workaround mentioned above
 	   near PHDRS.  */
 	.dummy : AT(ADDR(.dummy) - LOAD_OFFSET) {
-		LONG(0xf177)
+		LONG(0)
+		LONG(0)
+		LONG(0)
 	} :kernel :dummy
 
 /*