1 files changed, 30 insertions, 9 deletions

diff --git a/include/asm-i386/required-features.h b/include/asm-i386/required-features.h
index 9db866c1e64c..65848a007050 100644
--- a/include/asm-i386/required-features.h
+++ b/include/asm-i386/required-features.h
@@ -3,32 +3,53 @@
 
 /* Define minimum CPUID feature set for kernel These bits are checked
    really early to actually display a visible error message before the
-   kernel dies.  Only add word 0 bits here
+   kernel dies.  Make sure to assign features to the proper mask!
 
    Some requirements that are not in CPUID yet are also in the
-   CONFIG_X86_MINIMUM_CPU mode which is checked too.
+   CONFIG_X86_MINIMUM_CPU_FAMILY which is checked too.
 
    The real information is in arch/i386/Kconfig.cpu, this just converts
    the CONFIGs into a bitmask */
 
+#ifndef CONFIG_MATH_EMULATION
+# define NEED_FPU	(1<<(X86_FEATURE_FPU & 31))
+#else
+# define NEED_FPU	0
+#endif
+
 #ifdef CONFIG_X86_PAE
-#define NEED_PAE	(1<<X86_FEATURE_PAE)
+# define NEED_PAE	(1<<(X86_FEATURE_PAE & 31))
 #else
-#define NEED_PAE	0
+# define NEED_PAE	0
 #endif
 
 #ifdef CONFIG_X86_CMOV
-#define NEED_CMOV	(1<<X86_FEATURE_CMOV)
+# define NEED_CMOV	(1<<(X86_FEATURE_CMOV & 31))
 #else
-#define NEED_CMOV	0
+# define NEED_CMOV	0
 #endif
 
 #ifdef CONFIG_X86_CMPXCHG64
-#define NEED_CMPXCHG64  (1<<X86_FEATURE_CX8)
+# define NEED_CX8	(1<<(X86_FEATURE_CX8 & 31))
+#else
+# define NEED_CX8	0
+#endif
+
+#define REQUIRED_MASK0	(NEED_FPU|NEED_PAE|NEED_CMOV|NEED_CX8)
+
+#ifdef CONFIG_X86_USE_3DNOW
+# define NEED_3DNOW	(1<<(X86_FEATURE_3DNOW & 31))
 #else
-#define NEED_CMPXCHG64  0
+# define NEED_3DNOW	0
 #endif
 
-#define REQUIRED_MASK1	(NEED_PAE|NEED_CMOV|NEED_CMPXCHG64)
+#define REQUIRED_MASK1	(NEED_3DNOW)
+
+#define REQUIRED_MASK2	0
+#define REQUIRED_MASK3	0
+#define REQUIRED_MASK4	0
+#define REQUIRED_MASK5	0
+#define REQUIRED_MASK6	0
+#define REQUIRED_MASK7	0
 
 #endif