Merge branch 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits)
  x86, mm: Correct the implementation of is_untracked_pat_range()
  x86/pat: Trivial: don't create debugfs for memtype if pat is disabled
  x86, mtrr: Fix sorting of mtrr after subtracting
  x86: Move find_smp_config() earlier and avoid bootmem usage
  x86, platform: Change is_untracked_pat_range() to bool; cleanup init
  x86: Change is_ISA_range() into an inline function
  x86, mm: is_untracked_pat_range() takes a normal semiclosed range
  x86, mm: Call is_untracked_pat_range() rather than is_ISA_range()
  x86: UV SGI: Don't track GRU space in PAT
  x86: SGI UV: Fix BAU initialization
  x86, numa: Use near(er) online node instead of roundrobin for NUMA
  x86, numa, bootmem: Only free bootmem on NUMA failure path
  x86: Change crash kernel to reserve via reserve_early()
  x86: Eliminate redundant/contradicting cache line size config options
  x86: When cleaning MTRRs, do not fold WP into UC
  x86: remove "extern" from function prototypes in <asm/proto.h>
  x86, mm: Report state of NX protections during boot
  x86, mm: Clean up and simplify NX enablement
  x86, pageattr: Make set_memory_(x|nx) aware of NX support
  x86, sleep: Always save the value of EFER
  ...

Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range)
to 'struct x86_platform_ops') in
	arch/x86/include/asm/x86_init.h
	arch/x86/kernel/x86_init.c

1 files changed, 43 insertions, 63 deletions

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 82e88cdda9bc..946a311a25c9 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -106,6 +106,7 @@
 #include <asm/percpu.h>
 #include <asm/topology.h>
 #include <asm/apicdef.h>
+#include <asm/k8.h>
 #ifdef CONFIG_X86_64
 #include <asm/numa_64.h>
 #endif
@@ -487,42 +488,11 @@ static void __init reserve_early_setup_data(void)
 
 #ifdef CONFIG_KEXEC
 
-/**
- * Reserve @size bytes of crashkernel memory at any suitable offset.
- *
- * @size: Size of the crashkernel memory to reserve.
- * Returns the base address on success, and -1ULL on failure.
- */
-static
-unsigned long long __init find_and_reserve_crashkernel(unsigned long long size)
-{
-        const unsigned long long alignment = 16<<20;    /* 16M */
-        unsigned long long start = 0LL;
-
-        while (1) {
-                int ret;
-
-                start = find_e820_area(start, ULONG_MAX, size, alignment);
-                if (start == -1ULL)
-                        return start;
-
-                /* try to reserve it */
-                ret = reserve_bootmem_generic(start, size, BOOTMEM_EXCLUSIVE);
-                if (ret >= 0)
-                        return start;
-
-                start += alignment;
-        }
-}
-
 static inline unsigned long long get_total_mem(void)
 {
         unsigned long long total;
 
-        total = max_low_pfn - min_low_pfn;
-#ifdef CONFIG_HIGHMEM
-        total += highend_pfn - highstart_pfn;
-#endif
+        total = max_pfn - min_low_pfn;
 
         return total << PAGE_SHIFT;
 }
@@ -542,21 +512,25 @@ static void __init reserve_crashkernel(void)
 
         /* 0 means: find the address automatically */
         if (crash_base <= 0) {
-                crash_base = find_and_reserve_crashkernel(crash_size);
+                const unsigned long long alignment = 16<<20;    /* 16M */
+
+                crash_base = find_e820_area(alignment, ULONG_MAX, crash_size,
+                                 alignment);
                 if (crash_base == -1ULL) {
-                        pr_info("crashkernel reservation failed. "
-                                "No suitable area found.\n");
+                        pr_info("crashkernel reservation failed - No suitable area found.\n");
                         return;
                 }
         } else {
-                ret = reserve_bootmem_generic(crash_base, crash_size,
-                                        BOOTMEM_EXCLUSIVE);
-                if (ret < 0) {
-                        pr_info("crashkernel reservation failed - "
-                                "memory is in use\n");
+                unsigned long long start;
+
+                start = find_e820_area(crash_base, ULONG_MAX, crash_size,
+                                 1<<20);
+                if (start != crash_base) {
+                        pr_info("crashkernel reservation failed - memory is in use.\n");
                         return;
                 }
         }
+        reserve_early(crash_base, crash_base + crash_size, "CRASH KERNEL");
 
         printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
                         "for crashkernel (System RAM: %ldMB)\n",
@@ -699,6 +673,9 @@ static struct dmi_system_id __initdata bad_bios_dmi_table[] = {
 
 void __init setup_arch(char **cmdline_p)
 {
+        int acpi = 0;
+        int k8 = 0;
+
 #ifdef CONFIG_X86_32
         memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
         visws_early_detect();
@@ -791,21 +768,18 @@ void __init setup_arch(char **cmdline_p)
         strlcpy(command_line, boot_command_line, COMMAND_LINE_SIZE);
         *cmdline_p = command_line;
 
-#ifdef CONFIG_X86_64
         /*
-         * Must call this twice: Once just to detect whether hardware doesn't
-         * support NX (so that the early EHCI debug console setup can safely
-         * call set_fixmap(), and then again after parsing early parameters to
-         * honor the respective command line option.
+         * x86_configure_nx() is called before parse_early_param() to detect
+         * whether hardware doesn't support NX (so that the early EHCI debug
+         * console setup can safely call set_fixmap()). It may then be called
+         * again from within noexec_setup() during parsing early parameters
+         * to honor the respective command line option.
          */
-        check_efer();
-#endif
+        x86_configure_nx();
 
         parse_early_param();
 
-#ifdef CONFIG_X86_64
-        check_efer();
-#endif
+        x86_report_nx();
 
         /* Must be before kernel pagetables are setup */
         vmi_activate();
@@ -901,6 +875,13 @@ void __init setup_arch(char **cmdline_p)
 
         reserve_brk();
 
+#ifdef CONFIG_ACPI_SLEEP
+        /*
+         * Reserve low memory region for sleep support.
+         * even before init_memory_mapping
+         */
+        acpi_reserve_wakeup_memory();
+#endif
         init_gbpages();
 
         /* max_pfn_mapped is updated here */
@@ -927,6 +908,8 @@ void __init setup_arch(char **cmdline_p)
 
         reserve_initrd();
 
+        reserve_crashkernel();
+
         vsmp_init();
 
         io_delay_init();
@@ -938,27 +921,24 @@ void __init setup_arch(char **cmdline_p)
 
         early_acpi_boot_init();
 
+        /*
+         * Find and reserve possible boot-time SMP configuration:
+         */
+        find_smp_config();
+
 #ifdef CONFIG_ACPI_NUMA
         /*
          * Parse SRAT to discover nodes.
          */
-        acpi_numa_init();
+        acpi = acpi_numa_init();
 #endif
 
-        initmem_init(0, max_pfn);
-
-#ifdef CONFIG_ACPI_SLEEP
-        /*
-         * Reserve low memory region for sleep support.
-         */
-        acpi_reserve_bootmem();
+#ifdef CONFIG_K8_NUMA
+        if (!acpi)
+                k8 = !k8_numa_init(0, max_pfn);
 #endif
-        /*
-         * Find and reserve possible boot-time SMP configuration:
-         */
-        find_smp_config();
 
-        reserve_crashkernel();
+        initmem_init(0, max_pfn, acpi, k8);
 
 #ifdef CONFIG_X86_64
         /*