This patch add architecture depended create/free context functions
for Cell.

Signed-off-by: Takashi Yamamoto <TakashiA.Yamamoto@jp.sony.com>
---
 arch/powerpc/perfmon/perfmon_cell.c |   20 ++++++++++++++++++++
 include/asm-powerpc/perfmon_kern.h  |   20 ++++++++++++++++++--
 2 files changed, 38 insertions(+), 2 deletions(-)

--- a/arch/powerpc/perfmon/perfmon_cell.c
+++ b/arch/powerpc/perfmon/perfmon_cell.c
@@ -1211,6 +1211,24 @@ static void pfm_cell_get_ovfl_pmds(struc
 }
 
 /**
+ * pfm_cell_create_context
+ *
+ **/
+static int pfm_cell_create_context(struct pfm_context *ctx, u32 ctx_flags)
+{
+	return 0;
+}
+
+/**
+ * pfm_cell_free_context
+ *
+ **/
+static void pfm_cell_free_context(struct pfm_context *ctx)
+{
+	return ;
+}
+
+/**
  * pfm_cell_acquire_pmu
  *
  * acquire PMU resource.
@@ -1385,6 +1403,8 @@ static struct pfm_arch_pmu_info pfm_cell
 	.pmu_style        = PFM_POWERPC_PMU_CELL,
 	.acquire_pmu      = pfm_cell_acquire_pmu,
 	.release_pmu      = pfm_cell_release_pmu,
+	.create_context   = pfm_cell_create_context,
+	.free_context     = pfm_cell_free_context,
 	.write_pmc        = pfm_cell_write_pmc,
 	.write_pmd        = pfm_cell_write_pmd,
 	.read_pmd         = pfm_cell_read_pmd,
--- a/include/asm-powerpc/perfmon_kern.h
+++ b/include/asm-powerpc/perfmon_kern.h
@@ -115,6 +115,9 @@ struct pfm_arch_pmu_info {
 			       struct pfm_event_set *set);
 	int  (*load_context)(struct pfm_context *ctx);
 	void (*unload_context)(struct pfm_context *ctx);
+	int  (*create_context)(struct pfm_context *ctx,
+			       u32 ctx_flags);
+	void (*free_context)(struct pfm_context *ctx);
 	int  (*acquire_pmu)(void);
 	void (*release_pmu)(void);
 	void *platform_info;
@@ -304,11 +307,24 @@ static inline int pfm_arch_pmu_config_in
 static inline int pfm_arch_context_create(struct pfm_context *ctx,
 					  u32 ctx_flags)
 {
-	return 0;
+	struct pfm_arch_pmu_info *arch_info;
+	int rc = 0;
+
+	arch_info = pfm_pmu_info();
+	if (arch_info->create_context)
+		rc = arch_info->create_context(ctx, ctx_flags);
+
+	return rc;
 }
 
 static inline void pfm_arch_context_free(struct pfm_context *ctx)
-{}
+{
+	struct pfm_arch_pmu_info *arch_info;
+
+	arch_info = pfm_pmu_info();
+	if (arch_info->free_context)
+		arch_info->free_context(ctx);
+}
 
 /* not necessary on PowerPC */
 static inline void pfm_cacheflush(void *addr, unsigned int len)