From dbe005bb69caeb2f4f9b0fe982f6fab9ce51b67f Mon Sep 17 00:00:00 2001
From: Sascha Wildner <saw@online.de>
Date: Wed, 6 Jul 2011 21:05:26 +0200
Subject: [PATCH] kernel: FWIW, allow the CPU_ENABLE_EST option for x86_64
 kernels too.

---
 sys/config/LINT64              | 4 ++++
 sys/platform/pc64/conf/files   | 2 ++
 sys/platform/pc64/conf/options | 1 +
 3 files changed, 7 insertions(+)

diff --git a/sys/config/LINT64 b/sys/config/LINT64
index 7800c41873..82e318143f 100644
--- a/sys/config/LINT64
+++ b/sys/config/LINT64
@@ -143,8 +143,12 @@ cpu		HAMMER_CPU
 #
 # CPU_DISABLE_SSE disables SSE/MMX2 instructions support.
 #
+# CPU_ENABLE_EST enables support for Enhanced SpeedStep technology
+# found in Pentium(tm) M processors.
+#
 options		CPU_AMD64X2_INTR_SPAM
 #options 	CPU_DISABLE_SSE
+options		CPU_ENABLE_EST
 
 #####################################################################
 # COMPATIBILITY OPTIONS
diff --git a/sys/platform/pc64/conf/files b/sys/platform/pc64/conf/files
index 12d3fce866..31f03a9734 100644
--- a/sys/platform/pc64/conf/files
+++ b/sys/platform/pc64/conf/files
@@ -178,6 +178,8 @@ platform/pc64/apic/ioapic_abi.c		standard
 platform/pc64/apic/ioapic_ipl.s		standard
 platform/pc64/apic/apic_vector.s	standard
 
+platform/pc64/x86_64/est.c		optional	cpu_enable_est
+
 bus/isa/x86_64/isa.c			optional	isa
 bus/isa/x86_64/isa_dma.c			optional	isa
 
diff --git a/sys/platform/pc64/conf/options b/sys/platform/pc64/conf/options
index 49f5a3ea1d..072e95845e 100644
--- a/sys/platform/pc64/conf/options
+++ b/sys/platform/pc64/conf/options
@@ -14,6 +14,7 @@ APIC_IO			opt_apic.h
 
 # x86_64 SMP options
 CPU_AMD64X2_INTR_SPAM	opt_cpu.h
+CPU_ENABLE_EST		opt_cpu.h
 
 # The cpu type
 #
-- 
2.41.0