[PATCH][2.6-test4][3/6]Support for HPET based timer

[Pallipadi, Venkatesh]

3/6 - hpet3.patch - Miscallaneous makefile and config changes



diff -purN linux-2.6.0-test4/arch/i386/Kconfig linux-2.6.0-test4-hpet/arch/i386/Kconfig
--- linux-2.6.0-test4/arch/i386/Kconfig	2003-08-22 16:52:28.000000000 -0700
+++ linux-2.6.0-test4-hpet/arch/i386/Kconfig	2003-08-28 12:18:15.000000000 -0700
@@ -408,6 +408,17 @@ config HUGETLB_PAGE
 
 	  Otherwise, say N.
 
+config HPET_TIMER
+	bool "HPET Timer Support"
+	help
+	  This enables HPET timer usage for kernel internal timer.
+	  HPET is the next generation timer replacing legacy 8254s.
+	  You can safely choose Y here. However, HPET will be
+	  activated, only if platform and the BIOS supports the feature.
+	  Otherwise, 8254 will be used for timing services.
+
+	  Choose N, to continue using legacy 8254 timer.
+
 config SMP
 	bool "Symmetric multi-processing support"
 	---help---
diff -purN linux-2.6.0-test4/arch/i386/kernel/Makefile linux-2.6.0-test4-hpet/arch/i386/kernel/Makefile
--- linux-2.6.0-test4/arch/i386/kernel/Makefile	2003-08-22 16:52:57.000000000 -0700
+++ linux-2.6.0-test4-hpet/arch/i386/kernel/Makefile	2003-08-28 12:18:15.000000000 -0700
@@ -31,6 +31,7 @@ obj-$(CONFIG_EDD)             	+= edd.o
 obj-$(CONFIG_MODULES)		+= module.o
 obj-y				+= sysenter.o vsyscall.o
 obj-$(CONFIG_ACPI_SRAT) 	+= srat.o
+obj-$(CONFIG_HPET_TIMER) 	+= time_hpet.o
 
 EXTRA_AFLAGS   := -traditional
 
diff -purN linux-2.6.0-test4/arch/i386/kernel/timers/Makefile linux-2.6.0-test4-hpet/arch/i386/kernel/timers/Makefile
--- linux-2.6.0-test4/arch/i386/kernel/timers/Makefile	2003-08-22 16:50:23.000000000 -0700
+++ linux-2.6.0-test4-hpet/arch/i386/kernel/timers/Makefile	2003-08-28 12:18:15.000000000 -0700
@@ -5,3 +5,4 @@
 obj-y := timer.o timer_none.o timer_tsc.o timer_pit.o
 
 obj-$(CONFIG_X86_CYCLONE_TIMER)	+= timer_cyclone.o
+obj-$(CONFIG_HPET_TIMER)	+= timer_hpet.o
diff -purN linux-2.6.0-test4/Documentation/kernel-parameters.txt linux-2.6.0-test4-hpet/Documentation/kernel-parameters.txt
--- linux-2.6.0-test4/Documentation/kernel-parameters.txt	2003-08-22 17:03:21.000000000 -0700
+++ linux-2.6.0-test4-hpet/Documentation/kernel-parameters.txt	2003-08-28 12:18:15.000000000 -0700
@@ -215,7 +215,10 @@ running once the system is up.
 			when calculating gettimeofday(). If specicified timesource
 			is not avalible, it defaults to PIT. 
 			Format: { pit | tsc | cyclone | ... }
-			
+
+	hpet=		[IA-32,HPET] option to disable HPET and use PIT.
+			Format: disable
+
 	cm206=		[HW,CD]
 			Format: { auto | [<io>,][<irq>] }

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