x86: allow more than 8 cpus to be used on 32-bit

X86_PC is the only remaining 'sub' architecture, so we dont need
it anymore.

This also cleans up a few spurious references to X86_PC in the
driver space - those certainly should be X86.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

4 files changed, 2 insertions, 8 deletions

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 5bf0e0c58289..afaf2cb7c1ac 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -262,9 +262,6 @@ config X86_MPPARSE
           For old smp systems that do not have proper acpi support. Newer systems
           (esp with 64bit cpus) with acpi support, MADT and DSDT will override it
 
-config X86_PC
-        def_bool y
-
 config X86_NON_STANDARD
         bool "Support for non-standard x86 platforms"
         help
@@ -1019,7 +1016,6 @@ config NUMA
         bool "Numa Memory Allocation and Scheduler Support"
         depends on SMP
         depends on X86_64 || (X86_32 && HIGHMEM64G && (X86_NUMAQ || X86_BIGSMP || X86_SUMMIT && ACPI) && EXPERIMENTAL)
-        default n if X86_PC
         default y if (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP)
         help
           Enable NUMA (Non Uniform Memory Access) support.
@@ -1122,7 +1118,7 @@ config ARCH_SPARSEMEM_DEFAULT
 
 config ARCH_SPARSEMEM_ENABLE
         def_bool y
-        depends on X86_64 || NUMA || (EXPERIMENTAL && X86_PC) || X86_32_NON_STANDARD
+        depends on X86_64 || NUMA || (EXPERIMENTAL && X86_32) || X86_32_NON_STANDARD
         select SPARSEMEM_STATIC if X86_32
         select SPARSEMEM_VMEMMAP_ENABLE if X86_64
 
diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig
index edba00d98ac3..739bce993b56 100644
--- a/arch/x86/configs/i386_defconfig
+++ b/arch/x86/configs/i386_defconfig
@@ -188,7 +188,6 @@ CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 CONFIG_SMP=y
 CONFIG_X86_FIND_SMP_CONFIG=y
 CONFIG_X86_MPPARSE=y
-CONFIG_X86_PC=y
 # CONFIG_X86_ELAN is not set
 # CONFIG_X86_VOYAGER is not set
 # CONFIG_X86_GENERICARCH is not set
diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig
index 322dd2748fc9..02b514e8f4c4 100644
--- a/arch/x86/configs/x86_64_defconfig
+++ b/arch/x86/configs/x86_64_defconfig
@@ -187,7 +187,6 @@ CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
 CONFIG_SMP=y
 CONFIG_X86_FIND_SMP_CONFIG=y
 CONFIG_X86_MPPARSE=y
-CONFIG_X86_PC=y
 # CONFIG_X86_ELAN is not set
 # CONFIG_X86_VOYAGER is not set
 # CONFIG_X86_GENERICARCH is not set
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index fc80bc18943e..2912fa3a8ef2 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -1000,7 +1000,7 @@ static int __init smp_sanity_check(unsigned max_cpus)
 {
         preempt_disable();
 
-#if defined(CONFIG_X86_PC) && defined(CONFIG_X86_32)
+#ifndef CONFIG_X86_BIGSMP
         if (def_to_bigsmp && nr_cpu_ids > 8) {
                 unsigned int cpu;
                 unsigned nr;