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powerpc/oprofile: IBM CELL: cleanup and restructuring

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This patch restructures and cleans up the code a bit to make it
easier to add new functionality later.  The patch makes no
functional changes to the existing code.

Signed-off-by: Carl Love <carll@us.ibm.com>
Signed-off-by: Robert Richter <robert.richter@amd.com>
This commit is contained in:
Carl Love
2008-12-01 16:18:34 -08:00
committed by Robert Richter
parent 4a6908a3a0
commit 9b93418e7e
2 changed files with 191 additions and 153 deletions
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24
arch/powerpc/oprofile/cell/spu_profiler.c
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@@ -31,8 +31,8 @@ static unsigned int profiling_interval;
#define SPU_PC_MASK 0xFFFF
static DEFINE_SPINLOCK(sample_array_lock);
unsigned long sample_array_lock_flags;
static DEFINE_SPINLOCK(oprof_spu_smpl_arry_lck);
unsigned long oprof_spu_smpl_arry_lck_flags;
void set_spu_profiling_frequency(unsigned int freq_khz, unsigned int cycles_reset)
{
@@ -145,13 +145,13 @@ static enum hrtimer_restart profile_spus(struct hrtimer *timer)
* sample array must be loaded and then processed for a given
* cpu. The sample array is not per cpu.
*/
spin_lock_irqsave(&sample_array_lock,
sample_array_lock_flags);
spin_lock_irqsave(&oprof_spu_smpl_arry_lck,
oprof_spu_smpl_arry_lck_flags);
num_samples = cell_spu_pc_collection(cpu);
if (num_samples == 0) {
spin_unlock_irqrestore(&sample_array_lock,
sample_array_lock_flags);
spin_unlock_irqrestore(&oprof_spu_smpl_arry_lck,
oprof_spu_smpl_arry_lck_flags);
continue;
}
@@ -162,8 +162,8 @@ static enum hrtimer_restart profile_spus(struct hrtimer *timer)
num_samples);
}
spin_unlock_irqrestore(&sample_array_lock,
sample_array_lock_flags);
spin_unlock_irqrestore(&oprof_spu_smpl_arry_lck,
oprof_spu_smpl_arry_lck_flags);
}
smp_wmb(); /* insure spu event buffer updates are written */
@@ -182,13 +182,13 @@ static enum hrtimer_restart profile_spus(struct hrtimer *timer)
static struct hrtimer timer;
/*
* Entry point for SPU profiling.
* Entry point for SPU cycle profiling.
* NOTE: SPU profiling is done system-wide, not per-CPU.
*
* cycles_reset is the count value specified by the user when
* setting up OProfile to count SPU_CYCLES.
*/
int start_spu_profiling(unsigned int cycles_reset)
int start_spu_profiling_cycles(unsigned int cycles_reset)
{
ktime_t kt;
@@ -212,10 +212,10 @@ int start_spu_profiling(unsigned int cycles_reset)
return 0;
}
void stop_spu_profiling(void)
void stop_spu_profiling_cycles(void)
{
spu_prof_running = 0;
hrtimer_cancel(&timer);
kfree(samples);
pr_debug("SPU_PROF: stop_spu_profiling issued\n");
pr_debug("SPU_PROF: stop_spu_profiling_cycles issued\n");
}