1 files changed, 0 insertions, 118 deletions
diff --git a/arch/tile/kernel/pmc.c b/arch/tile/kernel/pmc.c
deleted file mode 100644
index 81cf8743a3f3..000000000000
--- a/arch/tile/kernel/pmc.c
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * Copyright 2014 Tilera Corporation. All Rights Reserved.
- *
- *   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, version 2.
- *
- *   This program is distributed in the hope that it will be useful, but
- *   WITHOUT ANY WARRANTY; without even the implied warranty of
- *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- *   NON INFRINGEMENT.  See the GNU General Public License for
- *   more details.
- */
-
-#include <linux/errno.h>
-#include <linux/spinlock.h>
-#include <linux/module.h>
-#include <linux/atomic.h>
-
-#include <asm/processor.h>
-#include <asm/pmc.h>
-
-perf_irq_t perf_irq = NULL;
-int handle_perf_interrupt(struct pt_regs *regs, int fault)
-{
-	int retval;
-
-	if (!perf_irq)
-		panic("Unexpected PERF_COUNT interrupt %d\n", fault);
-
-	retval = perf_irq(regs, fault);
-	return retval;
-}
-
-/* Reserve PMC hardware if it is available. */
-perf_irq_t reserve_pmc_hardware(perf_irq_t new_perf_irq)
-{
-	return cmpxchg(&perf_irq, NULL, new_perf_irq);
-}
-EXPORT_SYMBOL(reserve_pmc_hardware);
-
-/* Release PMC hardware. */
-void release_pmc_hardware(void)
-{
-	perf_irq = NULL;
-}
-EXPORT_SYMBOL(release_pmc_hardware);
-
-
-/*
- * Get current overflow status of each performance counter,
- * and auxiliary performance counter.
- */
-unsigned long
-pmc_get_overflow(void)
-{
-	unsigned long status;
-
-	/*
-	 * merge base+aux into a single vector
-	 */
-	status = __insn_mfspr(SPR_PERF_COUNT_STS);
-	status |= __insn_mfspr(SPR_AUX_PERF_COUNT_STS) << TILE_BASE_COUNTERS;
-	return status;
-}
-
-/*
- * Clear the status bit for the corresponding counter, if written
- * with a one.
- */
-void
-pmc_ack_overflow(unsigned long status)
-{
-	/*
-	 * clear overflow status by writing ones
-	 */
-	__insn_mtspr(SPR_PERF_COUNT_STS, status);
-	__insn_mtspr(SPR_AUX_PERF_COUNT_STS, status >> TILE_BASE_COUNTERS);
-}
-
-/*
- * The perf count interrupts are masked and unmasked explicitly,
- * and only here.  The normal irq_enable() does not enable them,
- * and irq_disable() does not disable them.  That lets these
- * routines drive the perf count interrupts orthogonally.
- *
- * We also mask the perf count interrupts on entry to the perf count
- * interrupt handler in assembly code, and by default unmask them
- * again (with interrupt critical section protection) just before
- * returning from the interrupt.  If the perf count handler returns
- * a non-zero error code, then we don't re-enable them before returning.
- *
- * For Pro, we rely on both interrupts being in the same word to update
- * them atomically so we never have one enabled and one disabled.
- */
-
-#if CHIP_HAS_SPLIT_INTR_MASK()
-# if INT_PERF_COUNT < 32 || INT_AUX_PERF_COUNT < 32
-#  error Fix assumptions about which word PERF_COUNT interrupts are in
-# endif
-#endif
-
-static inline unsigned long long pmc_mask(void)
-{
-	unsigned long long mask = 1ULL << INT_PERF_COUNT;
-	mask |= 1ULL << INT_AUX_PERF_COUNT;
-	return mask;
-}
-
-void unmask_pmc_interrupts(void)
-{
-	interrupt_mask_reset_mask(pmc_mask());
-}
-
-void mask_pmc_interrupts(void)
-{
-	interrupt_mask_set_mask(pmc_mask());
-}