Merge branch 'sched-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

[linux-2.6-omap-h63xx.git] / arch / x86 / Kconfig.cpu

diff --git a/arch/x86/Kconfig.cpu b/arch/x86/Kconfig.cpu
index 2c518fbc52ece13221e587ee71f11c81a4d5cec7..60a85768cfcba7b78c15f183fe99017e35792880 100644 (file)
--- a/arch/x86/Kconfig.cpu
+++ b/arch/x86/Kconfig.cpu
@@ -382,14 +382,17 @@ config X86_OOSTORE
 # P6_NOPs are a relatively minor optimization that require a family >=
 # 6 processor, except that it is broken on certain VIA chips.
 # Furthermore, AMD chips prefer a totally different sequence of NOPs
-# (which work on all CPUs).  As a result, disallow these if we're
-# compiling X86_GENERIC but not X86_64 (these NOPs do work on all
-# x86-64 capable chips); the list of processors in the right-hand clause
-# are the cores that benefit from this optimization.
+# (which work on all CPUs).  In addition, it looks like Virtual PC
+# does not understand them.
+#
+# As a result, disallow these if we're not compiling for X86_64 (these
+# NOPs do work on all x86-64 capable chips); the list of processors in
+# the right-hand clause are the cores that benefit from this optimization.
 #
 config X86_P6_NOP
        def_bool y
-       depends on (X86_64 || !X86_GENERIC) && (M686 || MPENTIUMII || MPENTIUMIII || MPENTIUMM || MCORE2 || MPENTIUM4 || MPSC)
+       depends on X86_64
+       depends on (MCORE2 || MPENTIUM4 || MPSC)
 
 config X86_TSC
        def_bool y
@@ -415,3 +418,21 @@ config X86_MINIMUM_CPU_FAMILY
 config X86_DEBUGCTLMSR
        def_bool y
        depends on !(MK6 || MWINCHIPC6 || MWINCHIP2 || MWINCHIP3D || MCYRIXIII || M586MMX || M586TSC || M586 || M486 || M386)
+
+config X86_DS
+       bool "Debug Store support"
+       default y
+       help
+         Add support for Debug Store.
+         This allows the kernel to provide a memory buffer to the hardware
+         to store various profiling and tracing events.
+
+config X86_PTRACE_BTS
+       bool "ptrace interface to Branch Trace Store"
+       default y
+       depends on (X86_DS && X86_DEBUGCTLMSR)
+       help
+         Add a ptrace interface to allow collecting an execution trace
+         of the traced task.
+         This collects control flow changes in a (cyclic) buffer and allows
+         debuggers to fill in the gaps and show an execution trace of the debuggee.