Initial memory tracker hal for exynos5
Only tracks GL memory so far.
Bug: 10294768
Change-Id: I47d8ecd6e98f883878dbb32788739d63828a2459
diff --git a/exynos5.mk b/exynos5.mk
index ecec085..4eb4f0f 100644
--- a/exynos5.mk
+++ b/exynos5.mk
@@ -38,3 +38,7 @@
# Keystore
PRODUCT_PACKAGES += \
keystore.exynos5
+
+# Memory Tracker HAL
+PRODUCT_PACKAGES += \
+ memtrack.exynos5
diff --git a/libmemtrack/Android.mk b/libmemtrack/Android.mk
new file mode 100644
index 0000000..1b6a848
--- /dev/null
+++ b/libmemtrack/Android.mk
@@ -0,0 +1,26 @@
+# Copyright (C) 2013 The Android Open Source Project
+#
+# 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
+#
+# http://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.
+
+LOCAL_PATH := $(call my-dir)
+
+# HAL module implemenation stored in
+# hw/<POWERS_HARDWARE_MODULE_ID>.<ro.hardware>.so
+include $(CLEAR_VARS)
+
+LOCAL_MODULE_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/hw
+LOCAL_C_INCLUDES += hardware/libhardware/include
+LOCAL_SHARED_LIBRARIES := liblog
+LOCAL_SRC_FILES := memtrack_exynos5.c mali.c
+LOCAL_MODULE := memtrack.exynos5
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libmemtrack/mali.c b/libmemtrack/mali.c
new file mode 100644
index 0000000..34930a6
--- /dev/null
+++ b/libmemtrack/mali.c
@@ -0,0 +1,99 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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
+ *
+ * http://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 <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include <hardware/memtrack.h>
+
+#include "memtrack_exynos5.h"
+
+#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
+#define min(x, y) ((x) < (y) ? (x) : (y))
+
+struct memtrack_record record_templates[] = {
+ {
+ .flags = MEMTRACK_FLAG_SMAPS_ACCOUNTED |
+ MEMTRACK_FLAG_PRIVATE |
+ MEMTRACK_FLAG_NONSECURE,
+ },
+ {
+ .flags = MEMTRACK_FLAG_SMAPS_UNACCOUNTED |
+ MEMTRACK_FLAG_PRIVATE |
+ MEMTRACK_FLAG_NONSECURE,
+ },
+};
+
+int mali_memtrack_get_memory(pid_t pid, enum memtrack_type type,
+ struct memtrack_record *records,
+ size_t *num_records)
+{
+ size_t allocated_records = min(*num_records, ARRAY_SIZE(record_templates));
+ int i;
+ FILE *fp;
+ char line[1024];
+
+ *num_records = ARRAY_SIZE(record_templates);
+
+ /* fastpath to return the necessary number of records */
+ if (allocated_records == 0) {
+ return 0;
+ }
+
+ fp = fopen("/sys/devices/platform/mali.0/gpu_memory", "r");
+ if (fp == NULL) {
+ return -errno;
+ }
+
+ memcpy(records, record_templates,
+ sizeof(struct memtrack_record) * allocated_records);
+
+ while (1) {
+ if (fgets(line, sizeof(line), fp) == NULL) {
+ break;
+ }
+
+ /* Format:
+ * Name pid cap(pages) usage(pages) unmapped(pages)
+ * =================================================================
+ * mali0 524288 85163
+ * ndroid.calendar 10708 1048575 181 111
+ */
+ if (line[0] == ' ' && line[1] == ' ') {
+ unsigned int allocated;
+ unsigned int unmapped;
+ int line_pid;
+
+ int ret = sscanf(line, " %*s %u %*u %u %u\n",
+ &line_pid, &allocated, &unmapped);
+ if (ret == 3 && line_pid == pid) {
+ if (allocated_records > 0) {
+ records[0].size_in_bytes = (allocated - unmapped) * PAGE_SIZE;
+ }
+ if (allocated_records > 1) {
+ records[1].size_in_bytes = unmapped * PAGE_SIZE;
+ }
+ break;
+ }
+ }
+ }
+
+ fclose(fp);
+
+ return 0;
+}
diff --git a/libmemtrack/memtrack_exynos5.c b/libmemtrack/memtrack_exynos5.c
new file mode 100644
index 0000000..ede1b9f
--- /dev/null
+++ b/libmemtrack/memtrack_exynos5.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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
+ *
+ * http://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 <errno.h>
+
+#include <hardware/memtrack.h>
+
+#include "memtrack_exynos5.h"
+
+int exynos5_memtrack_init(const struct memtrack_module *module)
+{
+ return 0;
+}
+
+int exynos5_memtrack_get_memory(const struct memtrack_module *module,
+ pid_t pid,
+ enum memtrack_type type,
+ struct memtrack_record *records,
+ size_t *num_records)
+{
+ if (type == MEMTRACK_TYPE_GL) {
+ return mali_memtrack_get_memory(pid, type, records, num_records);
+ }
+
+ return -EINVAL;
+}
+
+static struct hw_module_methods_t memtrack_module_methods = {
+ .open = NULL,
+};
+
+struct memtrack_module HAL_MODULE_INFO_SYM = {
+ common: {
+ tag: HARDWARE_MODULE_TAG,
+ module_api_version: MEMTRACK_MODULE_API_VERSION_0_1,
+ hal_api_version: HARDWARE_HAL_API_VERSION,
+ id: MEMTRACK_HARDWARE_MODULE_ID,
+ name: "Exynos5 Memory Tracker HAL",
+ author: "The Android Open Source Project",
+ methods: &memtrack_module_methods,
+ },
+
+ init: exynos5_memtrack_init,
+ getMemory: exynos5_memtrack_get_memory,
+};
+
diff --git a/libmemtrack/memtrack_exynos5.h b/libmemtrack/memtrack_exynos5.h
new file mode 100644
index 0000000..40a6c89
--- /dev/null
+++ b/libmemtrack/memtrack_exynos5.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013 The Android Open Source Project
+ *
+ * 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
+ *
+ * http://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.
+ */
+
+#ifndef _MEMTRACK_EXYNOS5_H_
+#define _MEMTRACK_EXYNOS5_H_
+
+int mali_memtrack_get_memory(pid_t pid, enum memtrack_type type,
+ struct memtrack_record *records,
+ size_t *num_records);
+
+#endif