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-rw-r--r--arch/powerpc/include/asm/perf_event_fsl_emb.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/perf_event_fsl_emb.h b/arch/powerpc/include/asm/perf_event_fsl_emb.h
new file mode 100644
index 000000000..c4d9ceb03
--- /dev/null
+++ b/arch/powerpc/include/asm/perf_event_fsl_emb.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Performance event support - Freescale embedded specific definitions.
+ *
+ * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ */
+
+#include <linux/types.h>
+#include <asm/hw_irq.h>
+
+#define MAX_HWEVENTS 6
+
+/* event flags */
+#define FSL_EMB_EVENT_VALID 1
+#define FSL_EMB_EVENT_RESTRICTED 2
+
+/* upper half of event flags is PMLCb */
+#define FSL_EMB_EVENT_THRESHMUL 0x0000070000000000ULL
+#define FSL_EMB_EVENT_THRESH 0x0000003f00000000ULL
+
+struct fsl_emb_pmu {
+ const char *name;
+ int n_counter; /* total number of counters */
+
+ /*
+ * The number of contiguous counters starting at zero that
+ * can hold restricted events, or zero if there are no
+ * restricted events.
+ *
+ * This isn't a very flexible method of expressing constraints,
+ * but it's very simple and is adequate for existing chips.
+ */
+ int n_restricted;
+
+ /* Returns event flags and PMLCb (FSL_EMB_EVENT_*) */
+ u64 (*xlate_event)(u64 event_id);
+
+ int n_generic;
+ int *generic_events;
+ int (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
+ [PERF_COUNT_HW_CACHE_OP_MAX]
+ [PERF_COUNT_HW_CACHE_RESULT_MAX];
+};
+
+int register_fsl_emb_pmu(struct fsl_emb_pmu *);