aboutsummaryrefslogtreecommitdiff
path: root/arch/x86/kernel/setup.c
diff options
context:
space:
mode:
authorThomas Gleixner <tglx@linutronix.de>2011-02-22 18:24:26 +0100
committerThomas Gleixner <tglx@linutronix.de>2011-02-22 18:41:48 +0100
commit695884fb8acd9857e0e7120ccb2150e30f4b8fef (patch)
tree49aa424c1a021ce432e9fa5ea29d37a23e4e30cc /arch/x86/kernel/setup.c
parent5df91509d324d44cfb11e55d9cb02fe18b53b045 (diff)
parent04bea68b2f0eeebb089ecc67b618795925268b4a (diff)
Merge branch 'devicetree/for-x86' of git://git.secretlab.ca/git/linux-2.6 into x86/platform
Reason: x86 devicetree support for ce4100 depends on those device tree changes scheduled for .39. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/setup.c')
-rw-r--r--arch/x86/kernel/setup.c31
1 files changed, 19 insertions, 12 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index 68d535a77df..ca2f10622a7 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -501,7 +501,18 @@ static inline unsigned long long get_total_mem(void)
return total << PAGE_SHIFT;
}
-#define DEFAULT_BZIMAGE_ADDR_MAX 0x37FFFFFF
+/*
+ * Keep the crash kernel below this limit. On 32 bits earlier kernels
+ * would limit the kernel to the low 512 MiB due to mapping restrictions.
+ * On 64 bits, kexec-tools currently limits us to 896 MiB; increase this
+ * limit once kexec-tools are fixed.
+ */
+#ifdef CONFIG_X86_32
+# define CRASH_KERNEL_ADDR_MAX (512 << 20)
+#else
+# define CRASH_KERNEL_ADDR_MAX (896 << 20)
+#endif
+
static void __init reserve_crashkernel(void)
{
unsigned long long total_mem;
@@ -520,10 +531,10 @@ static void __init reserve_crashkernel(void)
const unsigned long long alignment = 16<<20; /* 16M */
/*
- * kexec want bzImage is below DEFAULT_BZIMAGE_ADDR_MAX
+ * kexec want bzImage is below CRASH_KERNEL_ADDR_MAX
*/
crash_base = memblock_find_in_range(alignment,
- DEFAULT_BZIMAGE_ADDR_MAX, crash_size, alignment);
+ CRASH_KERNEL_ADDR_MAX, crash_size, alignment);
if (crash_base == MEMBLOCK_ERROR) {
pr_info("crashkernel reservation failed - No suitable area found.\n");
@@ -694,7 +705,7 @@ static u64 __init get_max_mapped(void)
void __init setup_arch(char **cmdline_p)
{
int acpi = 0;
- int k8 = 0;
+ int amd = 0;
unsigned long flags;
#ifdef CONFIG_X86_32
@@ -769,7 +780,6 @@ void __init setup_arch(char **cmdline_p)
x86_init.oem.arch_setup();
- resource_alloc_from_bottom = 0;
iomem_resource.end = (1ULL << boot_cpu_data.x86_phys_bits) - 1;
setup_memory_map();
parse_setup_data();
@@ -981,12 +991,12 @@ void __init setup_arch(char **cmdline_p)
acpi = acpi_numa_init();
#endif
-#ifdef CONFIG_K8_NUMA
+#ifdef CONFIG_AMD_NUMA
if (!acpi)
- k8 = !k8_numa_init(0, max_pfn);
+ amd = !amd_numa_init(0, max_pfn);
#endif
- initmem_init(0, max_pfn, acpi, k8);
+ initmem_init(0, max_pfn, acpi, amd);
memblock_find_dma_reserve();
dma32_reserve_bootmem();
@@ -1035,10 +1045,7 @@ void __init setup_arch(char **cmdline_p)
#endif
init_apic_mappings();
- ioapic_init_mappings();
-
- /* need to wait for io_apic is mapped */
- probe_nr_irqs_gsi();
+ ioapic_and_gsi_init();
kvm_guest_init();