Merge branch 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'core-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  do_generic_file_read: s/EINTR/EIO/ if lock_page_killable() fails
  softirq, warning fix: correct a format to avoid a warning
  softirqs, debug: preemption check
  x86, pci-hotplug, calgary / rio: fix EBDA ioremap()
  IO resources, x86: ioremap sanity check to catch mapping requests exceeding, fix
  IO resources, x86: ioremap sanity check to catch mapping requests exceeding the BAR sizes
  softlockup: Documentation/sysctl/kernel.txt: fix softlockup_thresh description
  dmi scan: warn about too early calls to dmi_check_system()
  generic: redefine resource_size_t as phys_addr_t
  generic: make PFN_PHYS explicitly return phys_addr_t
  generic: add phys_addr_t for holding physical addresses
  softirq: allocate less vectors
  IO resources: fix/remove printk
  printk: robustify printk, update comment
  printk: robustify printk, fix #2
  printk: robustify printk, fix
  printk: robustify printk

Fixed up conflicts in:
	arch/powerpc/include/asm/types.h
	arch/powerpc/platforms/Kconfig.cputype
manually.

8 files changed, 21 insertions, 24 deletions

diff --git a/arch/m32r/mm/discontig.c b/arch/m32r/mm/discontig.c
index cbc3c4c54566..7daf897292cf 100644
--- a/arch/m32r/mm/discontig.c
+++ b/arch/m32r/mm/discontig.c
@@ -111,9 +111,9 @@ unsigned long __init setup_memory(void)
                                 initrd_start, INITRD_SIZE);
                 } else {
                         printk("initrd extends beyond end of memory "
-                                "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+                                "(0x%08lx > 0x%08llx)\ndisabling initrd\n",
                                 INITRD_START + INITRD_SIZE,
-                                PFN_PHYS(max_low_pfn));
+                                (unsigned long long)PFN_PHYS(max_low_pfn));
 
                         initrd_start = 0;
                 }
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index c171f5bcf258..380baa1780e9 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -22,6 +22,9 @@ config WORD_SIZE
 config PPC_MERGE
         def_bool y
 
+config ARCH_PHYS_ADDR_T_64BIT
+       def_bool PPC64 || PHYS_64BIT
+
 config MMU
         bool
         default y
diff --git a/arch/powerpc/include/asm/types.h b/arch/powerpc/include/asm/types.h
index a9a9262e84a3..c004c13f291e 100644
--- a/arch/powerpc/include/asm/types.h
+++ b/arch/powerpc/include/asm/types.h
@@ -48,13 +48,6 @@ typedef struct {
 
 typedef __vector128 vector128;
 
-/* Physical address used by some IO functions */
-#if defined(CONFIG_PPC64) || defined(CONFIG_PHYS_64BIT)
-typedef u64 phys_addr_t;
-#else
-typedef u32 phys_addr_t;
-#endif
-
 #if defined(__powerpc64__) || defined(CONFIG_PHYS_64BIT)
 typedef u64 dma_addr_t;
 #else
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 439c5ba34ecf..548efa55c8fe 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -135,7 +135,6 @@ config PTE_64BIT
 config PHYS_64BIT
         bool 'Large physical address support' if E500 || PPC_86xx
         depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
-        select RESOURCES_64BIT
         ---help---
           This option enables kernel support for larger than 32-bit physical
           addresses.  This feature may not be available on all cores.
diff --git a/arch/powerpc/sysdev/ppc4xx_pci.c b/arch/powerpc/sysdev/ppc4xx_pci.c
index 9f6f73d584d6..d3e4d61030b5 100644
--- a/arch/powerpc/sysdev/ppc4xx_pci.c
+++ b/arch/powerpc/sysdev/ppc4xx_pci.c
@@ -39,13 +39,10 @@ static int dma_offset_set;
 #define U64_TO_U32_LOW(val)     ((u32)((val) & 0x00000000ffffffffULL))
 #define U64_TO_U32_HIGH(val)    ((u32)((val) >> 32))
 
-#ifdef CONFIG_RESOURCES_64BIT
-#define RES_TO_U32_LOW(val)     U64_TO_U32_LOW(val)
-#define RES_TO_U32_HIGH(val)    U64_TO_U32_HIGH(val)
-#else
-#define RES_TO_U32_LOW(val)     (val)
-#define RES_TO_U32_HIGH(val)    (0)
-#endif
+#define RES_TO_U32_LOW(val)     \
+        ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_LOW(val) : (val))
+#define RES_TO_U32_HIGH(val)    \
+        ((sizeof(resource_size_t) > sizeof(u32)) ? U64_TO_U32_HIGH(val) : (0))
 
 static inline int ppc440spe_revA(void)
 {
@@ -144,12 +141,11 @@ static int __init ppc4xx_parse_dma_ranges(struct pci_controller *hose,
 
                 /* Use that */
                 res->start = pci_addr;
-#ifndef CONFIG_RESOURCES_64BIT
                 /* Beware of 32 bits resources */
-                if ((pci_addr + size) > 0x100000000ull)
+                if (sizeof(resource_size_t) == sizeof(u32) &&
+                    (pci_addr + size) > 0x100000000ull)
                         res->end = 0xffffffff;
                 else
-#endif
                         res->end = res->start + size - 1;
                 break;
         }
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 7ccb6e60e60c..bd3c2c53873e 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -935,13 +935,15 @@ config HIGHMEM
 config X86_PAE
         bool "PAE (Physical Address Extension) Support"
         depends on X86_32 && !HIGHMEM4G
-        select RESOURCES_64BIT
         help
           PAE is required for NX support, and furthermore enables
           larger swapspace support for non-overcommit purposes. It
           has the cost of more pagetable lookup overhead, and also
           consumes more pagetable space per process.
 
+config ARCH_PHYS_ADDR_T_64BIT
+       def_bool X86_64 || X86_PAE
+
 # Common NUMA Features
 config NUMA
         bool "Numa Memory Allocation and Scheduler Support (EXPERIMENTAL)"
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 78e642feac30..ce97bf3bed12 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -1282,12 +1282,10 @@ void __init e820_reserve_resources(void)
         e820_res = res;
         for (i = 0; i < e820.nr_map; i++) {
                 end = e820.map[i].addr + e820.map[i].size - 1;
-#ifndef CONFIG_RESOURCES_64BIT
-                if (end > 0x100000000ULL) {
+                if (end != (resource_size_t)end) {
                         res++;
                         continue;
                 }
-#endif
                 res->name = e820_type_to_string(e820.map[i].type);
                 res->start = e820.map[i].addr;
                 res->end = end;
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index e4c43ec71b29..ae71e11eb3e5 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -220,6 +220,12 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
                 return (__force void __iomem *)phys_to_virt(phys_addr);
 
         /*
+         * Check if the request spans more than any BAR in the iomem resource
+         * tree.
+         */
+        WARN_ON(iomem_map_sanity_check(phys_addr, size));
+
+        /*
          * Don't allow anybody to remap normal RAM that we're using..
          */
         for (pfn = phys_addr >> PAGE_SHIFT;