Commit-ID: 40ffa93791985ab300fd488072e9f37ccf72e88c
Gitweb: http://git.kernel.org/tip/40ffa93791985ab300fd488072e9f37ccf72e88c
Author: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
AuthorDate: Fri, 15 Oct 2010 21:08:14 +0200
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitDate: Fri, 15 Oct 2010 21:18:59 +0200
x86: Remove stale pmtimer_64.c
This file is unused since the apic unification in 2.6.29, but nobody
noticed.
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
---
arch/x86/kernel/Makefile | 1 -
arch/x86/kernel/pmtimer_64.c | 69 ------------------------------------------
include/linux/acpi_pmtmr.h | 2 -
3 files changed, 0 insertions(+), 72 deletions(-)
diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile
index 0925676..dd9a2e4 100644
--- a/arch/x86/kernel/Makefile
+++ b/arch/x86/kernel/Makefile
@@ -120,7 +120,6 @@ obj-$(CONFIG_SWIOTLB) += pci-swiotlb.o
# 64 bit specific files
ifeq ($(CONFIG_X86_64),y)
obj-$(CONFIG_X86_UV) += tlb_uv.o bios_uv.o uv_irq.o uv_sysfs.o uv_time.o
- obj-$(CONFIG_X86_PM_TIMER) += pmtimer_64.o
obj-$(CONFIG_AUDIT) += audit_64.o
obj-$(CONFIG_GART_IOMMU) += pci-gart_64.o aperture_64.o
diff --git a/arch/x86/kernel/pmtimer_64.c b/arch/x86/kernel/pmtimer_64.c
deleted file mode 100644
index b112406..0000000
--- a/arch/x86/kernel/pmtimer_64.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/* Ported over from i386 by AK, original copyright was:
- *
- * (C) Dominik Brodowski <linux@xxxxxxxx> 2003
- *
- * Driver to use the Power Management Timer (PMTMR) available in some
- * southbridges as primary timing source for the Linux kernel.
- *
- * Based on parts of linux/drivers/acpi/hardware/hwtimer.c, timer_pit.c,
- * timer_hpet.c, and on Arjan van de Ven's implementation for 2.4.
- *
- * This file is licensed under the GPL v2.
- *
- * Dropped all the hardware bug workarounds for now. Hopefully they
- * are not needed on 64bit chipsets.
- */
-
-#include <linux/jiffies.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/init.h>
-#include <linux/cpumask.h>
-#include <linux/acpi_pmtmr.h>
-
-#include <asm/io.h>
-#include <asm/proto.h>
-#include <asm/msr.h>
-#include <asm/vsyscall.h>
-
-static inline u32 cyc2us(u32 cycles)
-{
- /* The Power Management Timer ticks at 3.579545 ticks per microsecond.
- * 1 / PM_TIMER_FREQUENCY == 0.27936511 =~ 286/1024 [error: 0.024%]
- *
- * Even with HZ = 100, delta is at maximum 35796 ticks, so it can
- * easily be multiplied with 286 (=0x11E) without having to fear
- * u32 overflows.
- */
- cycles *= 286;
- return (cycles >> 10);
-}
-
-static unsigned pmtimer_wait_tick(void)
-{
- u32 a, b;
- for (a = b = inl(pmtmr_ioport) & ACPI_PM_MASK;
- a == b;
- b = inl(pmtmr_ioport) & ACPI_PM_MASK)
- cpu_relax();
- return b;
-}
-
-/* note: wait time is rounded up to one tick */
-void pmtimer_wait(unsigned us)
-{
- u32 a, b;
- a = pmtimer_wait_tick();
- do {
- b = inl(pmtmr_ioport);
- cpu_relax();
- } while (cyc2us(b - a) < us);
-}
-
-static int __init nopmtimer_setup(char *s)
-{
- pmtmr_ioport = 0;
- return 1;
-}
-
-__setup("nopmtimer", nopmtimer_setup);
diff --git a/include/linux/acpi_pmtmr.h b/include/linux/acpi_pmtmr.h
index 7e3d285..1d0ef1a 100644
--- a/include/linux/acpi_pmtmr.h
+++ b/include/linux/acpi_pmtmr.h
@@ -25,8 +25,6 @@ static inline u32 acpi_pm_read_early(void)
return acpi_pm_read_verified() & ACPI_PM_MASK;
}
-extern void pmtimer_wait(unsigned);
-
#else
static inline u32 acpi_pm_read_early(void)
--
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