Merge commit 'v2.6.27-rc3' into x86/urgent

diff --git a/arch/x86/boot/boot.h b/arch/x86/boot/boot.h
index a34b9982c7cbcf928bd96e3b17955a789f226f57..9d4b4b43d97af59f6ed45d8680b8d58a04469c5c 100644 (file)
--- a/arch/x86/boot/boot.h
+++ b/arch/x86/boot/boot.h
@@ -25,6 +25,8 @@
 #include <asm/boot.h>
 #include <asm/setup.h>
 
+#define NCAPINTS   8
+
 /* Useful macros */
 #define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
 
@@ -242,6 +244,12 @@ int cmdline_find_option(const char *option, char *buffer, int bufsize);
 int cmdline_find_option_bool(const char *option);
 
 /* cpu.c, cpucheck.c */
+struct cpu_features {
+       int level;              /* Family, or 64 for x86-64 */
+       int model;
+       u32 flags[NCAPINTS];
+};
+extern struct cpu_features cpu;
 int check_cpu(int *cpu_level_ptr, int *req_level_ptr, u32 **err_flags_ptr);
 int validate_cpu(void);
 

diff --git a/arch/x86/boot/cpucheck.c b/arch/x86/boot/cpucheck.c
index 7804389ee0059eb8f4be589cccd24a2623f9567f..c1ce0303d994206faa386226dcba435dbba2aa97 100644 (file)
--- a/arch/x86/boot/cpucheck.c
+++ b/arch/x86/boot/cpucheck.c
@@ -30,13 +30,7 @@
 #include <asm/required-features.h>
 #include <asm/msr-index.h>
 
-struct cpu_features {
-       int level;              /* Family, or 64 for x86-64 */
-       int model;
-       u32 flags[NCAPINTS];
-};
-
-static struct cpu_features cpu;
+struct cpu_features cpu;
 static u32 cpu_vendor[3];
 static u32 err_flags[NCAPINTS];
 

diff --git a/arch/x86/boot/main.c b/arch/x86/boot/main.c
index 2296164b54d2abc3ad8edc343af2b76c830d6693..01aa64b5575bab043cd43df70b3f0ebedfe05025 100644 (file)
--- a/arch/x86/boot/main.c
+++ b/arch/x86/boot/main.c
@@ -73,6 +73,10 @@ static void keyboard_set_repeat(void)
  */
 static void query_ist(void)
 {
+       /* Some 486 BIOSes apparently crash on this call */
+       if (cpu.level < 6)
+               return;
+
        asm("int $0x15"
            : "=a" (boot_params.ist_info.signature),
              "=b" (boot_params.ist_info.command),

diff --git a/include/asm-x86/mmzone_32.h b/include/asm-x86/mmzone_32.h
index b2298a227567fa24f28bd04de70b0b80b70aaa93..5862e6460658d29fc8be6b2a9b2a26389522eb1f 100644 (file)
--- a/include/asm-x86/mmzone_32.h
+++ b/include/asm-x86/mmzone_32.h
@@ -97,10 +97,16 @@ static inline int pfn_valid(int pfn)
        reserve_bootmem_node(NODE_DATA(0), (addr), (size), (flags))
 #define alloc_bootmem(x) \
        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_nopanic(x) \
+       __alloc_bootmem_node_nopanic(NODE_DATA(0), (x), SMP_CACHE_BYTES, \
+                               __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_low(x) \
        __alloc_bootmem_node(NODE_DATA(0), (x), SMP_CACHE_BYTES, 0)
 #define alloc_bootmem_pages(x) \
        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, __pa(MAX_DMA_ADDRESS))
+#define alloc_bootmem_pages_nopanic(x) \
+       __alloc_bootmem_node_nopanic(NODE_DATA(0), (x), PAGE_SIZE, \
+                               __pa(MAX_DMA_ADDRESS))
 #define alloc_bootmem_low_pages(x) \
        __alloc_bootmem_node(NODE_DATA(0), (x), PAGE_SIZE, 0)
 #define alloc_bootmem_node(pgdat, x)                                   \