Initial msm8x64 memory tracker HAL
Reads memory info from kgsl to track unaccounted for GL and ION
memory. Right now it has to parse every allocation and then
cross-reference it against /proc/pid/smaps. It would be faster
to modify the kgsl driver to keep counters that could just be
read directly.
Bug: 10294768
Change-Id: Icb17558f03ce53bc594fbee097e51fe82e15dc31
diff --git a/Android.mk b/Android.mk
index afc4e4f..609d1e1 100644
--- a/Android.mk
+++ b/Android.mk
@@ -1,6 +1,6 @@
display-hals := libgralloc libgenlock libcopybit liblight libvirtual
display-hals += libhwcomposer liboverlay libqdutils libexternal libqservice
-
+display-hals += libmemtrack
ifeq ($(call is-vendor-board-platform,QCOM),true)
include $(call all-named-subdir-makefiles,$(display-hals))
else
diff --git a/libmemtrack/Android.mk b/libmemtrack/Android.mk
new file mode 100644
index 0000000..ade8d7a
--- /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_msm.c kgsl.c
+LOCAL_MODULE := memtrack.msm8960
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libmemtrack/kgsl.c b/libmemtrack/kgsl.c
new file mode 100644
index 0000000..ecd5d37
--- /dev/null
+++ b/libmemtrack/kgsl.c
@@ -0,0 +1,151 @@
+/*
+ * 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 <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/mman.h>
+
+#include <hardware/memtrack.h>
+
+#include "memtrack_msm.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 kgsl_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;
+ FILE *smaps_fp;
+ char line[1024];
+ char tmp[128];
+ size_t accounted_size = 0;
+ size_t unaccounted_size = 0;
+ unsigned long smaps_addr = 0;
+
+ *num_records = ARRAY_SIZE(record_templates);
+
+ /* fastpath to return the necessary number of records */
+ if (allocated_records == 0) {
+ return 0;
+ }
+
+ memcpy(records, record_templates,
+ sizeof(struct memtrack_record) * allocated_records);
+
+ sprintf(tmp, "/d/kgsl/proc/%d/mem", pid);
+ fp = fopen(tmp, "r");
+ if (fp == NULL) {
+ return -errno;
+ }
+
+ if (type == MEMTRACK_TYPE_GL) {
+ sprintf(tmp, "/proc/%d/smaps", pid);
+ smaps_fp = fopen(tmp, "r");
+ if (smaps_fp == NULL) {
+ return -errno;
+ }
+ }
+
+ while (1) {
+ unsigned long uaddr;
+ unsigned long size;
+ char line_type[7];
+ int ret;
+
+ if (fgets(line, sizeof(line), fp) == NULL) {
+ break;
+ }
+
+ /* Format:
+ * gpuaddr useraddr size id flags type usage sglen
+ * 545ba000 545ba000 4096 1 ----p gpumem arraybuffer 1
+ */
+ ret = sscanf(line, "%*x %lx %lu %*d %*s %6s %*s %*d\n",
+ &uaddr, &size, line_type);
+ if (ret != 3) {
+ continue;
+ }
+
+ if (type == MEMTRACK_TYPE_GL && strcmp(line_type, "gpumem") == 0) {
+ bool accounted = false;
+ /*
+ * We need to cross reference the user address against smaps,
+ * luckily both are sorted.
+ */
+ while (smaps_addr <= uaddr) {
+ unsigned long start;
+ unsigned long end;
+ unsigned long smaps_size;
+
+ if (fgets(line, sizeof(line), smaps_fp) == NULL) {
+ break;
+ }
+
+ if (sscanf(line, "%8lx-%8lx", &start, &end) == 2) {
+ smaps_addr = start;
+ continue;
+ }
+
+ if (smaps_addr != uaddr) {
+ continue;
+ }
+
+ if (sscanf(line, "Rss: %lu kB", &smaps_size) == 1) {
+ if (smaps_size) {
+ accounted = true;
+ accounted_size += size;
+ break;
+ }
+ }
+ }
+ if (!accounted) {
+ unaccounted_size += size;
+ }
+ } else if (type == MEMTRACK_TYPE_GRAPHICS && strcmp(line_type, "ion") == 0) {
+ unaccounted_size += size;
+ }
+ }
+
+ if (allocated_records > 0) {
+ records[0].size_in_bytes = accounted_size;
+ }
+ if (allocated_records > 1) {
+ records[1].size_in_bytes = unaccounted_size;
+ }
+
+ fclose(fp);
+
+ return 0;
+}
diff --git a/libmemtrack/memtrack_msm.c b/libmemtrack/memtrack_msm.c
new file mode 100644
index 0000000..6044c8c
--- /dev/null
+++ b/libmemtrack/memtrack_msm.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_msm.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 || type == MEMTRACK_TYPE_GRAPHICS) {
+ return kgsl_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_msm.h b/libmemtrack/memtrack_msm.h
new file mode 100644
index 0000000..cfdefc0
--- /dev/null
+++ b/libmemtrack/memtrack_msm.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 kgsl_memtrack_get_memory(pid_t pid, enum memtrack_type type,
+ struct memtrack_record *records,
+ size_t *num_records);
+
+#endif