2 files changed, 1 insertions, 89 deletions
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index 18f477fa1df2..6cce419f4b09 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -17,7 +17,7 @@ obj-y               +=	irq.o idle.o dma.o \
 			udbg.o ioctl32.o \
 			rtc.o \
 			cpu_setup_power4.o \
-			iommu.o sysfs.o vdso.o pmc.o firmware.o
+			iommu.o sysfs.o vdso.o firmware.o
 obj-y += vdso32/ vdso64/
 
 pci-obj-$(CONFIG_PPC_MULTIPLATFORM)	+= pci_dn.o pci_direct_iommu.o
diff --git a/arch/ppc64/kernel/pmc.c b/arch/ppc64/kernel/pmc.c
deleted file mode 100644
index 944d7df7935f..000000000000
--- a/arch/ppc64/kernel/pmc.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/*
- *  linux/arch/ppc64/kernel/pmc.c
- *
- *  Copyright (C) 2004 David Gibson, IBM Corporation.
- *
- *  This program is free software; you can redistribute it and/or
- *  modify it under the terms of the GNU General Public License
- *  as published by the Free Software Foundation; either version
- *  2 of the License, or (at your option) any later version.
- */
-
-#include <linux/config.h>
-#include <linux/errno.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-
-#include <asm/processor.h>
-#include <asm/pmc.h>
-
-/* Ensure exceptions are disabled */
-static void dummy_perf(struct pt_regs *regs)
-{
-	unsigned int mmcr0 = mfspr(SPRN_MMCR0);
-
-	mmcr0 &= ~(MMCR0_PMXE|MMCR0_PMAO);
-	mtspr(SPRN_MMCR0, mmcr0);
-}
-
-static DEFINE_SPINLOCK(pmc_owner_lock);
-static void *pmc_owner_caller; /* mostly for debugging */
-perf_irq_t perf_irq = dummy_perf;
-
-int reserve_pmc_hardware(perf_irq_t new_perf_irq)
-{
-	int err = 0;
-
-	spin_lock(&pmc_owner_lock);
-
-	if (pmc_owner_caller) {
-		printk(KERN_WARNING "reserve_pmc_hardware: "
-		       "PMC hardware busy (reserved by caller %p)\n",
-		       pmc_owner_caller);
-		err = -EBUSY;
-		goto out;
-	}
-
-	pmc_owner_caller = __builtin_return_address(0);
-	perf_irq = new_perf_irq ? : dummy_perf;
-
- out:
-	spin_unlock(&pmc_owner_lock);
-	return err;
-}
-EXPORT_SYMBOL_GPL(reserve_pmc_hardware);
-
-void release_pmc_hardware(void)
-{
-	spin_lock(&pmc_owner_lock);
-
-	WARN_ON(! pmc_owner_caller);
-
-	pmc_owner_caller = NULL;
-	perf_irq = dummy_perf;
-
-	spin_unlock(&pmc_owner_lock);
-}
-EXPORT_SYMBOL_GPL(release_pmc_hardware);
-
-void power4_enable_pmcs(void)
-{
-	unsigned long hid0;
-
-	hid0 = mfspr(SPRN_HID0);
-	hid0 |= 1UL << (63 - 20);
-
-	/* POWER4 requires the following sequence */
-	asm volatile(
-		"sync\n"
-		"mtspr     %1, %0\n"
-		"mfspr     %0, %1\n"
-		"mfspr     %0, %1\n"
-		"mfspr     %0, %1\n"
-		"mfspr     %0, %1\n"
-		"mfspr     %0, %1\n"
-		"mfspr     %0, %1\n"
-		"isync" : "=&r" (hid0) : "i" (SPRN_HID0), "0" (hid0):
-		"memory");
-}