1 files changed, 82 insertions, 0 deletions
diff --git a/ethosu_pmu/driver.c b/ethosu_pmu/driver.c
new file mode 100644
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--- /dev/null
+++ b/ethosu_pmu/driver.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright (c) 2019-2020 Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the License); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an AS IS BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+#include "common.h"
+#include "ethosu55_interface.h"
+#include "ethosu_pmu_config.h"
+#include <assert.h>
+#include <ethosu_driver.h>
+#include <pmu_ethosu.h>
+#include <stdint.h>
+
+PMU_Ethosu_ctrl_Type *ethosu_pmu_ctrl = (PMU_Ethosu_ctrl_Type *)ETHOSU_PMU_CTRL_BASE;
+PMU_Ethosu_cntr_Type *ethosu_pmu_cntr = (PMU_Ethosu_cntr_Type *)ETHOSU_PMU_CNTR_BASE;
+PMU_Ethosu_evnt_Type *ethosu_pmu_evnt = (PMU_Ethosu_evnt_Type *)ETHOSU_PMU_EVNT_BASE;
+
+// Local functions & macros
+#define PMUREG0(NAME) INIT_##NAME
+
+#define ETHOSU_PMU_INIT(N)                                                                                             \
+    *ethosu_pmu_ctrl = (PMU_Ethosu_ctrl_Type){.PMCR        = PMUREG##N(PMCR),                                          \
+                                              .PMCNTENSET  = PMUREG##N(PMCNTENSET),                                    \
+                                              .PMCNTENCLR  = PMUREG##N(PMCNTENCLR),                                    \
+                                              .PMOVSSET    = PMUREG##N(PMOVSSET),                                      \
+                                              .PMOVSCLR    = PMUREG##N(PMOVSCLR),                                      \
+                                              .PMINTSET    = PMUREG##N(PMINTSET),                                      \
+                                              .PMINTCLR    = PMUREG##N(PMINTCLR),                                      \
+                                              .PMCCNTR     = PMUREG##N(PMCCNTR),                                       \
+                                              .PMCCNTR_CFG = PMUREG##N(PMCCNTR_CFG)};
+
+// Public interfaces
+
+#define EVTYPE(A, name)                                                                                                \
+    case PMU_EVENT_TYPE_##name:                                                                                        \
+        return ETHOSU_PMU_##name
+enum ethosu_pmu_event_type pmu_event_type(uint32_t id)
+{
+    switch (id)
+    {
+        EXPAND_PMU_EVENT_TYPE(EVTYPE, SEMICOLON);
+    }
+    return ETHOSU_PMU_SENTINEL;
+}
+
+#define EVID(A, name) (PMU_EVENT_TYPE_##name)
+static const enum pmu_event_type eventbyid[] = {EXPAND_PMU_EVENT_TYPE(EVID, COMMA)};
+uint32_t pmu_event_value(enum ethosu_pmu_event_type event)
+{
+    if (!(event < ETHOSU_PMU_SENTINEL) || (event < 0))
+    {
+        return (uint32_t)(-1);
+    }
+
+    return eventbyid[event];
+}
+
+// Driver Init/exit functions
+INIT ethosu_pmu_driver_init(void)
+{
+    ETHOSU_PMU_INIT(0)
+
+    for (int i = 0; i < ETHOSU_PMU_NCOUNTERS; i++)
+    {
+        *ethosu_pmu_cntr[i] = 0;
+        *ethosu_pmu_evnt[i] = 0;
+    }
+}
+
+EXIT ethosu_pmu_driver_exit(void) {}