diff options
Diffstat (limited to 'tools/testing/selftests/android/ion')
| -rw-r--r-- | tools/testing/selftests/android/ion/.gitignore | 3 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/Makefile | 19 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/README | 101 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ion.h | 143 | ||||
| -rwxr-xr-x | tools/testing/selftests/android/ion/ion_test.sh | 58 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ionapp_export.c | 136 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ionapp_import.c | 88 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ionmap_test.c | 136 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ionutils.c | 253 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ionutils.h | 55 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ipcsocket.c | 227 | ||||
| -rw-r--r-- | tools/testing/selftests/android/ion/ipcsocket.h | 35 |
12 files changed, 1254 insertions, 0 deletions
diff --git a/tools/testing/selftests/android/ion/.gitignore b/tools/testing/selftests/android/ion/.gitignore new file mode 100644 index 000000000..95e8f4561 --- /dev/null +++ b/tools/testing/selftests/android/ion/.gitignore @@ -0,0 +1,3 @@ +ionapp_export +ionapp_import +ionmap_test diff --git a/tools/testing/selftests/android/ion/Makefile b/tools/testing/selftests/android/ion/Makefile new file mode 100644 index 000000000..88cfe88e4 --- /dev/null +++ b/tools/testing/selftests/android/ion/Makefile @@ -0,0 +1,19 @@ + +INCLUDEDIR := -I. -I../../../../../drivers/staging/android/uapi/ -I../../../../../usr/include/ +CFLAGS := $(CFLAGS) $(INCLUDEDIR) -Wall -O2 -g + +TEST_GEN_FILES := ionapp_export ionapp_import ionmap_test + +all: $(TEST_GEN_FILES) + +$(TEST_GEN_FILES): ipcsocket.c ionutils.c + +TEST_PROGS := ion_test.sh + +KSFT_KHDR_INSTALL := 1 +top_srcdir = ../../../../.. +include ../../lib.mk + +$(OUTPUT)/ionapp_export: ionapp_export.c ipcsocket.c ionutils.c +$(OUTPUT)/ionapp_import: ionapp_import.c ipcsocket.c ionutils.c +$(OUTPUT)/ionmap_test: ionmap_test.c ionutils.c diff --git a/tools/testing/selftests/android/ion/README b/tools/testing/selftests/android/ion/README new file mode 100644 index 000000000..21783e9c4 --- /dev/null +++ b/tools/testing/selftests/android/ion/README @@ -0,0 +1,101 @@ +ION BUFFER SHARING UTILITY +========================== +File: ion_test.sh : Utility to test ION driver buffer sharing mechanism. +Author: Pintu Kumar <pintu.ping@gmail.com> + +Introduction: +------------- +This is a test utility to verify ION buffer sharing in user space +between 2 independent processes. +It uses unix domain socket (with SCM_RIGHTS) as IPC to transfer an FD to +another process to share the same buffer. +This utility demonstrates how ION buffer sharing can be implemented between +two user space processes, using various heap types. +The following heap types are supported by ION driver. +ION_HEAP_TYPE_SYSTEM (0) +ION_HEAP_TYPE_SYSTEM_CONTIG (1) +ION_HEAP_TYPE_CARVEOUT (2) +ION_HEAP_TYPE_CHUNK (3) +ION_HEAP_TYPE_DMA (4) + +By default only the SYSTEM and SYSTEM_CONTIG heaps are supported. +Each heap is associated with the respective heap id. +This utility is designed in the form of client/server program. +The server part (ionapp_export) is the exporter of the buffer. +It is responsible for creating an ION client, allocating the buffer based on +the heap id, writing some data to this buffer and then exporting the FD +(associated with this buffer) to another process using socket IPC. +This FD is called as buffer FD (which is different than the ION client FD). + +The client part (ionapp_import) is the importer of the buffer. +It retrives the FD from the socket data and installs into its address space. +This new FD internally points to the same kernel buffer. +So first it reads the data that is stored in this buffer and prints it. +Then it writes the different size of data (it could be different data) to the +same buffer. +Finally the buffer FD must be closed by both the exporter and importer. +Thus the same kernel buffer is shared among two user space processes using +ION driver and only one time allocation. + +Prerequisite: +------------- +This utility works only if /dev/ion interface is present. +The following configs needs to be enabled in kernel to include ion driver. +CONFIG_ANDROID=y +CONFIG_STAGING=y +CONFIG_ION=y +CONFIG_ION_SYSTEM_HEAP=y + +This utility requires to be run as root user. + + +Compile and test: +----------------- +This utility is made to be run as part of kselftest framework in kernel. +To compile and run using kselftest you can simply do the following from the +kernel top directory. +linux$ make TARGETS=android kselftest +Or you can also use: +linux$ make -C tools/testing/selftests TARGETS=android run_tests +Using the selftest it can directly execute the ion_test.sh script to test the +buffer sharing using ion system heap. +Currently the heap size is hard coded as just 10 bytes inside this script. +You need to be a root user to run under selftest. + +You can also compile and test manually using the following steps: +ion$ make +These will generate 2 executable: ionapp_export, ionapp_import +Now you can run the export and import manually by specifying the heap type +and the heap size. +You can also directly execute the shell script to run the test automatically. +Simply use the following command to run the test. +ion$ sudo ./ion_test.sh + +Test Results: +------------- +The utility is verified on Ubuntu-32 bit system with Linux Kernel 4.14. +Here is the snapshot of the test result using kselftest. + +linux# make TARGETS=android kselftest +heap_type: 0, heap_size: 10 +-------------------------------------- +heap type: 0 + heap id: 1 +heap name: ion_system_heap +-------------------------------------- +Fill buffer content: +0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd +Sharing fd: 6, Client fd: 5 +<ion_close_buffer_fd>: buffer release successfully.... +Received buffer fd: 4 +Read buffer content: +0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0x0 0x0 0x0 0x0 0x0 0x0 +0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 +Fill buffer content: +0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd +0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd +0xfd 0xfd +<ion_close_buffer_fd>: buffer release successfully.... +ion_test.sh: heap_type: 0 - [PASS] + +ion_test.sh: done diff --git a/tools/testing/selftests/android/ion/ion.h b/tools/testing/selftests/android/ion/ion.h new file mode 100644 index 000000000..f7021ac51 --- /dev/null +++ b/tools/testing/selftests/android/ion/ion.h @@ -0,0 +1,143 @@ +/* + * ion.h + * + * Copyright (C) 2011 Google, Inc. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +/* This file is copied from drivers/staging/android/uapi/ion.h + * This local copy is required for the selftest to pass, when build + * outside the kernel source tree. + * Please keep this file in sync with its original file until the + * ion driver is moved outside the staging tree. + */ + +#ifndef _UAPI_LINUX_ION_H +#define _UAPI_LINUX_ION_H + +#include <linux/ioctl.h> +#include <linux/types.h> + +/** + * enum ion_heap_types - list of all possible types of heaps + * @ION_HEAP_TYPE_SYSTEM: memory allocated via vmalloc + * @ION_HEAP_TYPE_SYSTEM_CONTIG: memory allocated via kmalloc + * @ION_HEAP_TYPE_CARVEOUT: memory allocated from a prereserved + * carveout heap, allocations are physically + * contiguous + * @ION_HEAP_TYPE_DMA: memory allocated via DMA API + * @ION_NUM_HEAPS: helper for iterating over heaps, a bit mask + * is used to identify the heaps, so only 32 + * total heap types are supported + */ +enum ion_heap_type { + ION_HEAP_TYPE_SYSTEM, + ION_HEAP_TYPE_SYSTEM_CONTIG, + ION_HEAP_TYPE_CARVEOUT, + ION_HEAP_TYPE_CHUNK, + ION_HEAP_TYPE_DMA, + ION_HEAP_TYPE_CUSTOM, /* + * must be last so device specific heaps always + * are at the end of this enum + */ +}; + +#define ION_NUM_HEAP_IDS (sizeof(unsigned int) * 8) + +/** + * allocation flags - the lower 16 bits are used by core ion, the upper 16 + * bits are reserved for use by the heaps themselves. + */ + +/* + * mappings of this buffer should be cached, ion will do cache maintenance + * when the buffer is mapped for dma + */ +#define ION_FLAG_CACHED 1 + +/** + * DOC: Ion Userspace API + * + * create a client by opening /dev/ion + * most operations handled via following ioctls + * + */ + +/** + * struct ion_allocation_data - metadata passed from userspace for allocations + * @len: size of the allocation + * @heap_id_mask: mask of heap ids to allocate from + * @flags: flags passed to heap + * @handle: pointer that will be populated with a cookie to use to + * refer to this allocation + * + * Provided by userspace as an argument to the ioctl + */ +struct ion_allocation_data { + __u64 len; + __u32 heap_id_mask; + __u32 flags; + __u32 fd; + __u32 unused; +}; + +#define MAX_HEAP_NAME 32 + +/** + * struct ion_heap_data - data about a heap + * @name - first 32 characters of the heap name + * @type - heap type + * @heap_id - heap id for the heap + */ +struct ion_heap_data { + char name[MAX_HEAP_NAME]; + __u32 type; + __u32 heap_id; + __u32 reserved0; + __u32 reserved1; + __u32 reserved2; +}; + +/** + * struct ion_heap_query - collection of data about all heaps + * @cnt - total number of heaps to be copied + * @heaps - buffer to copy heap data + */ +struct ion_heap_query { + __u32 cnt; /* Total number of heaps to be copied */ + __u32 reserved0; /* align to 64bits */ + __u64 heaps; /* buffer to be populated */ + __u32 reserved1; + __u32 reserved2; +}; + +#define ION_IOC_MAGIC 'I' + +/** + * DOC: ION_IOC_ALLOC - allocate memory + * + * Takes an ion_allocation_data struct and returns it with the handle field + * populated with the opaque handle for the allocation. + */ +#define ION_IOC_ALLOC _IOWR(ION_IOC_MAGIC, 0, \ + struct ion_allocation_data) + +/** + * DOC: ION_IOC_HEAP_QUERY - information about available heaps + * + * Takes an ion_heap_query structure and populates information about + * available Ion heaps. + */ +#define ION_IOC_HEAP_QUERY _IOWR(ION_IOC_MAGIC, 8, \ + struct ion_heap_query) + +#endif /* _UAPI_LINUX_ION_H */ diff --git a/tools/testing/selftests/android/ion/ion_test.sh b/tools/testing/selftests/android/ion/ion_test.sh new file mode 100755 index 000000000..69e676cfc --- /dev/null +++ b/tools/testing/selftests/android/ion/ion_test.sh @@ -0,0 +1,58 @@ +#!/bin/bash + +heapsize=4096 +TCID="ion_test.sh" +errcode=0 + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + +run_test() +{ + heaptype=$1 + ./ionapp_export -i $heaptype -s $heapsize & + sleep 1 + ./ionapp_import + if [ $? -ne 0 ]; then + echo "$TCID: heap_type: $heaptype - [FAIL]" + errcode=1 + else + echo "$TCID: heap_type: $heaptype - [PASS]" + fi + sleep 1 + echo "" +} + +check_root() +{ + uid=$(id -u) + if [ $uid -ne 0 ]; then + echo $TCID: must be run as root >&2 + exit $ksft_skip + fi +} + +check_device() +{ + DEVICE=/dev/ion + if [ ! -e $DEVICE ]; then + echo $TCID: No $DEVICE device found >&2 + echo $TCID: May be CONFIG_ION is not set >&2 + exit $ksft_skip + fi +} + +main_function() +{ + check_device + check_root + + # ION_SYSTEM_HEAP TEST + run_test 0 + # ION_SYSTEM_CONTIG_HEAP TEST + run_test 1 +} + +main_function +echo "$TCID: done" +exit $errcode diff --git a/tools/testing/selftests/android/ion/ionapp_export.c b/tools/testing/selftests/android/ion/ionapp_export.c new file mode 100644 index 000000000..b5fa0a2dc --- /dev/null +++ b/tools/testing/selftests/android/ion/ionapp_export.c @@ -0,0 +1,136 @@ +/* + * ionapp_export.c + * + * It is a user space utility to create and export android + * ion memory buffer fd to another process using unix domain socket as IPC. + * This acts like a server for ionapp_import(client). + * So, this server has to be started first before the client. + * + * Copyright (C) 2017 Pintu Kumar <pintu.ping@gmail.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <errno.h> +#include <sys/time.h> +#include "ionutils.h" +#include "ipcsocket.h" + + +void print_usage(int argc, char *argv[]) +{ + printf("Usage: %s [-h <help>] [-i <heap id>] [-s <size in bytes>]\n", + argv[0]); +} + +int main(int argc, char *argv[]) +{ + int opt, ret, status, heapid; + int sockfd, client_fd, shared_fd; + unsigned char *map_buf; + unsigned long map_len, heap_type, heap_size, flags; + struct ion_buffer_info info; + struct socket_info skinfo; + + if (argc < 2) { + print_usage(argc, argv); + return -1; + } + + heap_size = 0; + flags = 0; + heap_type = ION_HEAP_TYPE_SYSTEM; + + while ((opt = getopt(argc, argv, "hi:s:")) != -1) { + switch (opt) { + case 'h': + print_usage(argc, argv); + exit(0); + break; + case 'i': + heapid = atoi(optarg); + switch (heapid) { + case 0: + heap_type = ION_HEAP_TYPE_SYSTEM; + break; + case 1: + heap_type = ION_HEAP_TYPE_SYSTEM_CONTIG; + break; + default: + printf("ERROR: heap type not supported\n"); + exit(1); + } + break; + case 's': + heap_size = atoi(optarg); + break; + default: + print_usage(argc, argv); + exit(1); + break; + } + } + + if (heap_size <= 0) { + printf("heap_size cannot be 0\n"); + print_usage(argc, argv); + exit(1); + } + + printf("heap_type: %ld, heap_size: %ld\n", heap_type, heap_size); + info.heap_type = heap_type; + info.heap_size = heap_size; + info.flag_type = flags; + + /* This is server: open the socket connection first */ + /* Here; 1 indicates server or exporter */ + status = opensocket(&sockfd, SOCKET_NAME, 1); + if (status < 0) { + fprintf(stderr, "<%s>: Failed opensocket.\n", __func__); + goto err_socket; + } + skinfo.sockfd = sockfd; + + ret = ion_export_buffer_fd(&info); + if (ret < 0) { + fprintf(stderr, "FAILED: ion_get_buffer_fd\n"); + goto err_export; + } + client_fd = info.ionfd; + shared_fd = info.buffd; + map_buf = info.buffer; + map_len = info.buflen; + write_buffer(map_buf, map_len); + + /* share ion buf fd with other user process */ + printf("Sharing fd: %d, Client fd: %d\n", shared_fd, client_fd); + skinfo.datafd = shared_fd; + skinfo.buflen = map_len; + + ret = socket_send_fd(&skinfo); + if (ret < 0) { + fprintf(stderr, "FAILED: socket_send_fd\n"); + goto err_send; + } + +err_send: +err_export: + ion_close_buffer_fd(&info); + +err_socket: + closesocket(sockfd, SOCKET_NAME); + + return 0; +} diff --git a/tools/testing/selftests/android/ion/ionapp_import.c b/tools/testing/selftests/android/ion/ionapp_import.c new file mode 100644 index 000000000..ae2d704cf --- /dev/null +++ b/tools/testing/selftests/android/ion/ionapp_import.c @@ -0,0 +1,88 @@ +/* + * ionapp_import.c + * + * It is a user space utility to receive android ion memory buffer fd + * over unix domain socket IPC that can be exported by ionapp_export. + * This acts like a client for ionapp_export. + * + * Copyright (C) 2017 Pintu Kumar <pintu.ping@gmail.com> + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + */ + +#include <stdio.h> +#include <stdlib.h> +#include <unistd.h> +#include <string.h> +#include "ionutils.h" +#include "ipcsocket.h" + + +int main(void) +{ + int ret, status; + int sockfd, shared_fd; + unsigned char *map_buf; + unsigned long map_len; + struct ion_buffer_info info; + struct socket_info skinfo; + + /* This is the client part. Here 0 means client or importer */ + status = opensocket(&sockfd, SOCKET_NAME, 0); + if (status < 0) { + fprintf(stderr, "No exporter exists...\n"); + ret = status; + goto err_socket; + } + + skinfo.sockfd = sockfd; + + ret = socket_receive_fd(&skinfo); + if (ret < 0) { + fprintf(stderr, "Failed: socket_receive_fd\n"); + goto err_recv; + } + + shared_fd = skinfo.datafd; + printf("Received buffer fd: %d\n", shared_fd); + if (shared_fd <= 0) { + fprintf(stderr, "ERROR: improper buf fd\n"); + ret = -1; + goto err_fd; + } + + memset(&info, 0, sizeof(info)); + info.buffd = shared_fd; + info.buflen = ION_BUFFER_LEN; + + ret = ion_import_buffer_fd(&info); + if (ret < 0) { + fprintf(stderr, "Failed: ion_use_buffer_fd\n"); + goto err_import; + } + + map_buf = info.buffer; + map_len = info.buflen; + read_buffer(map_buf, map_len); + + /* Write probably new data to the same buffer again */ + map_len = ION_BUFFER_LEN; + write_buffer(map_buf, map_len); + +err_import: + ion_close_buffer_fd(&info); +err_fd: +err_recv: +err_socket: + closesocket(sockfd, SOCKET_NAME); + + return ret; +} diff --git a/tools/testing/selftests/android/ion/ionmap_test.c b/tools/testing/selftests/android/ion/ionmap_test.c new file mode 100644 index 000000000..dab36b06b --- /dev/null +++ b/tools/testing/selftests/android/ion/ionmap_test.c @@ -0,0 +1,136 @@ +#include <errno.h> +#include <fcntl.h> +#include <stdio.h> +#include <stdint.h> +#include <string.h> +#include <unistd.h> + +#include <sys/ioctl.h> +#include <sys/types.h> +#include <sys/stat.h> + +#include <linux/dma-buf.h> + +#include <drm/drm.h> + +#include "ion.h" +#include "ionutils.h" + +int check_vgem(int fd) +{ + drm_version_t version = { 0 }; + char name[5]; + int ret; + + version.name_len = 4; + version.name = name; + + ret = ioctl(fd, DRM_IOCTL_VERSION, &version); + if (ret) + return 1; + + return strcmp(name, "vgem"); +} + +int open_vgem(void) +{ + int i, fd; + const char *drmstr = "/dev/dri/card"; + + fd = -1; + for (i = 0; i < 16; i++) { + char name[80]; + + sprintf(name, "%s%u", drmstr, i); + + fd = open(name, O_RDWR); + if (fd < 0) + continue; + + if (check_vgem(fd)) { + close(fd); + continue; + } else { + break; + } + + } + return fd; +} + +int import_vgem_fd(int vgem_fd, int dma_buf_fd, uint32_t *handle) +{ + struct drm_prime_handle import_handle = { 0 }; + int ret; + + import_handle.fd = dma_buf_fd; + import_handle.flags = 0; + import_handle.handle = 0; + + ret = ioctl(vgem_fd, DRM_IOCTL_PRIME_FD_TO_HANDLE, &import_handle); + if (ret == 0) + *handle = import_handle.handle; + return ret; +} + +void close_handle(int vgem_fd, uint32_t handle) +{ + struct drm_gem_close close = { 0 }; + + close.handle = handle; + ioctl(vgem_fd, DRM_IOCTL_GEM_CLOSE, &close); +} + +int main() +{ + int ret, vgem_fd; + struct ion_buffer_info info; + uint32_t handle = 0; + struct dma_buf_sync sync = { 0 }; + + info.heap_type = ION_HEAP_TYPE_SYSTEM; + info.heap_size = 4096; + info.flag_type = ION_FLAG_CACHED; + + ret = ion_export_buffer_fd(&info); + if (ret < 0) { + printf("ion buffer alloc failed\n"); + return -1; + } + + vgem_fd = open_vgem(); + if (vgem_fd < 0) { + ret = vgem_fd; + printf("Failed to open vgem\n"); + goto out_ion; + } + + ret = import_vgem_fd(vgem_fd, info.buffd, &handle); + + if (ret < 0) { + printf("Failed to import buffer\n"); + goto out_vgem; + } + + sync.flags = DMA_BUF_SYNC_START | DMA_BUF_SYNC_RW; + ret = ioctl(info.buffd, DMA_BUF_IOCTL_SYNC, &sync); + if (ret) + printf("sync start failed %d\n", errno); + + memset(info.buffer, 0xff, 4096); + + sync.flags = DMA_BUF_SYNC_END | DMA_BUF_SYNC_RW; + ret = ioctl(info.buffd, DMA_BUF_IOCTL_SYNC, &sync); + if (ret) + printf("sync end failed %d\n", errno); + + close_handle(vgem_fd, handle); + ret = 0; + +out_vgem: + close(vgem_fd); +out_ion: + ion_close_buffer_fd(&info); + printf("done.\n"); + return ret; +} diff --git a/tools/testing/selftests/android/ion/ionutils.c b/tools/testing/selftests/android/ion/ionutils.c new file mode 100644 index 000000000..7d1d37c4e --- /dev/null +++ b/tools/testing/selftests/android/ion/ionutils.c @@ -0,0 +1,253 @@ +#include <stdio.h> +#include <string.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> +//#include <stdint.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include "ionutils.h" +#include "ipcsocket.h" + + +void write_buffer(void *buffer, unsigned long len) +{ + int i; + unsigned char *ptr = (unsigned char *)buffer; + + if (!ptr) { + fprintf(stderr, "<%s>: Invalid buffer...\n", __func__); + return; + } + + printf("Fill buffer content:\n"); + memset(ptr, 0xfd, len); + for (i = 0; i < len; i++) + printf("0x%x ", ptr[i]); + printf("\n"); +} + +void read_buffer(void *buffer, unsigned long len) +{ + int i; + unsigned char *ptr = (unsigned char *)buffer; + + if (!ptr) { + fprintf(stderr, "<%s>: Invalid buffer...\n", __func__); + return; + } + + printf("Read buffer content:\n"); + for (i = 0; i < len; i++) + printf("0x%x ", ptr[i]); + printf("\n"); +} + +int ion_export_buffer_fd(struct ion_buffer_info *ion_info) +{ + int i, ret, ionfd, buffer_fd; + unsigned int heap_id; + unsigned long maplen; + unsigned char *map_buffer; + struct ion_allocation_data alloc_data; + struct ion_heap_query query; + struct ion_heap_data heap_data[MAX_HEAP_COUNT]; + + if (!ion_info) { + fprintf(stderr, "<%s>: Invalid ion info\n", __func__); + return -1; + } + + /* Create an ION client */ + ionfd = open(ION_DEVICE, O_RDWR); + if (ionfd < 0) { + fprintf(stderr, "<%s>: Failed to open ion client: %s\n", + __func__, strerror(errno)); + return -1; + } + + memset(&query, 0, sizeof(query)); + query.cnt = MAX_HEAP_COUNT; + query.heaps = (unsigned long int)&heap_data[0]; + /* Query ION heap_id_mask from ION heap */ + ret = ioctl(ionfd, ION_IOC_HEAP_QUERY, &query); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed: ION_IOC_HEAP_QUERY: %s\n", + __func__, strerror(errno)); + goto err_query; + } + + heap_id = MAX_HEAP_COUNT + 1; + for (i = 0; i < query.cnt; i++) { + if (heap_data[i].type == ion_info->heap_type) { + heap_id = heap_data[i].heap_id; + break; + } + } + + if (heap_id > MAX_HEAP_COUNT) { + fprintf(stderr, "<%s>: ERROR: heap type does not exists\n", + __func__); + goto err_heap; + } + + alloc_data.len = ion_info->heap_size; + alloc_data.heap_id_mask = 1 << heap_id; + alloc_data.flags = ion_info->flag_type; + + /* Allocate memory for this ION client as per heap_type */ + ret = ioctl(ionfd, ION_IOC_ALLOC, &alloc_data); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed: ION_IOC_ALLOC: %s\n", + __func__, strerror(errno)); + goto err_alloc; + } + + /* This will return a valid buffer fd */ + buffer_fd = alloc_data.fd; + maplen = alloc_data.len; + + if (buffer_fd < 0 || maplen <= 0) { + fprintf(stderr, "<%s>: Invalid map data, fd: %d, len: %ld\n", + __func__, buffer_fd, maplen); + goto err_fd_data; + } + + /* Create memory mapped buffer for the buffer fd */ + map_buffer = (unsigned char *)mmap(NULL, maplen, PROT_READ|PROT_WRITE, + MAP_SHARED, buffer_fd, 0); + if (map_buffer == MAP_FAILED) { + fprintf(stderr, "<%s>: Failed: mmap: %s\n", + __func__, strerror(errno)); + goto err_mmap; + } + + ion_info->ionfd = ionfd; + ion_info->buffd = buffer_fd; + ion_info->buffer = map_buffer; + ion_info->buflen = maplen; + + return 0; + + munmap(map_buffer, maplen); + +err_fd_data: +err_mmap: + /* in case of error: close the buffer fd */ + if (buffer_fd) + close(buffer_fd); + +err_query: +err_heap: +err_alloc: + /* In case of error: close the ion client fd */ + if (ionfd) + close(ionfd); + + return -1; +} + +int ion_import_buffer_fd(struct ion_buffer_info *ion_info) +{ + int buffd; + unsigned char *map_buf; + unsigned long map_len; + + if (!ion_info) { + fprintf(stderr, "<%s>: Invalid ion info\n", __func__); + return -1; + } + + map_len = ion_info->buflen; + buffd = ion_info->buffd; + + if (buffd < 0 || map_len <= 0) { + fprintf(stderr, "<%s>: Invalid map data, fd: %d, len: %ld\n", + __func__, buffd, map_len); + goto err_buffd; + } + + map_buf = (unsigned char *)mmap(NULL, map_len, PROT_READ|PROT_WRITE, + MAP_SHARED, buffd, 0); + if (map_buf == MAP_FAILED) { + printf("<%s>: Failed - mmap: %s\n", + __func__, strerror(errno)); + goto err_mmap; + } + + ion_info->buffer = map_buf; + ion_info->buflen = map_len; + + return 0; + +err_mmap: + if (buffd) + close(buffd); + +err_buffd: + return -1; +} + +void ion_close_buffer_fd(struct ion_buffer_info *ion_info) +{ + if (ion_info) { + /* unmap the buffer properly in the end */ + munmap(ion_info->buffer, ion_info->buflen); + /* close the buffer fd */ + if (ion_info->buffd > 0) + close(ion_info->buffd); + /* Finally, close the client fd */ + if (ion_info->ionfd > 0) + close(ion_info->ionfd); + } +} + +int socket_send_fd(struct socket_info *info) +{ + int status; + int fd, sockfd; + struct socketdata skdata; + + if (!info) { + fprintf(stderr, "<%s>: Invalid socket info\n", __func__); + return -1; + } + + sockfd = info->sockfd; + fd = info->datafd; + memset(&skdata, 0, sizeof(skdata)); + skdata.data = fd; + skdata.len = sizeof(skdata.data); + status = sendtosocket(sockfd, &skdata); + if (status < 0) { + fprintf(stderr, "<%s>: Failed: sendtosocket\n", __func__); + return -1; + } + + return 0; +} + +int socket_receive_fd(struct socket_info *info) +{ + int status; + int fd, sockfd; + struct socketdata skdata; + + if (!info) { + fprintf(stderr, "<%s>: Invalid socket info\n", __func__); + return -1; + } + + sockfd = info->sockfd; + memset(&skdata, 0, sizeof(skdata)); + status = receivefromsocket(sockfd, &skdata); + if (status < 0) { + fprintf(stderr, "<%s>: Failed: receivefromsocket\n", __func__); + return -1; + } + + fd = (int)skdata.data; + info->datafd = fd; + + return status; +} diff --git a/tools/testing/selftests/android/ion/ionutils.h b/tools/testing/selftests/android/ion/ionutils.h new file mode 100644 index 000000000..9941eb858 --- /dev/null +++ b/tools/testing/selftests/android/ion/ionutils.h @@ -0,0 +1,55 @@ +#ifndef __ION_UTILS_H +#define __ION_UTILS_H + +#include "ion.h" + +#define SOCKET_NAME "ion_socket" +#define ION_DEVICE "/dev/ion" + +#define ION_BUFFER_LEN 4096 +#define MAX_HEAP_COUNT ION_HEAP_TYPE_CUSTOM + +struct socket_info { + int sockfd; + int datafd; + unsigned long buflen; +}; + +struct ion_buffer_info { + int ionfd; + int buffd; + unsigned int heap_type; + unsigned int flag_type; + unsigned long heap_size; + unsigned long buflen; + unsigned char *buffer; +}; + + +/* This is used to fill the data into the mapped buffer */ +void write_buffer(void *buffer, unsigned long len); + +/* This is used to read the data from the exported buffer */ +void read_buffer(void *buffer, unsigned long len); + +/* This is used to create an ION buffer FD for the kernel buffer + * So you can export this same buffer to others in the form of FD + */ +int ion_export_buffer_fd(struct ion_buffer_info *ion_info); + +/* This is used to import or map an exported FD. + * So we point to same buffer without making a copy. Hence zero-copy. + */ +int ion_import_buffer_fd(struct ion_buffer_info *ion_info); + +/* This is used to close all references for the ION client */ +void ion_close_buffer_fd(struct ion_buffer_info *ion_info); + +/* This is used to send FD to another process using socket IPC */ +int socket_send_fd(struct socket_info *skinfo); + +/* This is used to receive FD from another process using socket IPC */ +int socket_receive_fd(struct socket_info *skinfo); + + +#endif diff --git a/tools/testing/selftests/android/ion/ipcsocket.c b/tools/testing/selftests/android/ion/ipcsocket.c new file mode 100644 index 000000000..7dc521002 --- /dev/null +++ b/tools/testing/selftests/android/ion/ipcsocket.c @@ -0,0 +1,227 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> +#include <sys/types.h> +#include <sys/socket.h> +#include <sys/time.h> +#include <sys/un.h> +#include <errno.h> + +#include "ipcsocket.h" + + +int opensocket(int *sockfd, const char *name, int connecttype) +{ + int ret, temp = 1; + + if (!name || strlen(name) > MAX_SOCK_NAME_LEN) { + fprintf(stderr, "<%s>: Invalid socket name.\n", __func__); + return -1; + } + + ret = socket(PF_LOCAL, SOCK_STREAM, 0); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed socket: <%s>\n", + __func__, strerror(errno)); + return ret; + } + + *sockfd = ret; + if (setsockopt(*sockfd, SOL_SOCKET, SO_REUSEADDR, + (char *)&temp, sizeof(int)) < 0) { + fprintf(stderr, "<%s>: Failed setsockopt: <%s>\n", + __func__, strerror(errno)); + goto err; + } + + sprintf(sock_name, "/tmp/%s", name); + + if (connecttype == 1) { + /* This is for Server connection */ + struct sockaddr_un skaddr; + int clientfd; + socklen_t sklen; + + unlink(sock_name); + memset(&skaddr, 0, sizeof(skaddr)); + skaddr.sun_family = AF_LOCAL; + strcpy(skaddr.sun_path, sock_name); + + ret = bind(*sockfd, (struct sockaddr *)&skaddr, + SUN_LEN(&skaddr)); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed bind: <%s>\n", + __func__, strerror(errno)); + goto err; + } + + ret = listen(*sockfd, 5); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed listen: <%s>\n", + __func__, strerror(errno)); + goto err; + } + + memset(&skaddr, 0, sizeof(skaddr)); + sklen = sizeof(skaddr); + + ret = accept(*sockfd, (struct sockaddr *)&skaddr, + (socklen_t *)&sklen); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed accept: <%s>\n", + __func__, strerror(errno)); + goto err; + } + + clientfd = ret; + *sockfd = clientfd; + } else { + /* This is for client connection */ + struct sockaddr_un skaddr; + + memset(&skaddr, 0, sizeof(skaddr)); + skaddr.sun_family = AF_LOCAL; + strcpy(skaddr.sun_path, sock_name); + + ret = connect(*sockfd, (struct sockaddr *)&skaddr, + SUN_LEN(&skaddr)); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed connect: <%s>\n", + __func__, strerror(errno)); + goto err; + } + } + + return 0; + +err: + if (*sockfd) + close(*sockfd); + + return ret; +} + +int sendtosocket(int sockfd, struct socketdata *skdata) +{ + int ret, buffd; + unsigned int len; + char cmsg_b[CMSG_SPACE(sizeof(int))]; + struct cmsghdr *cmsg; + struct msghdr msgh; + struct iovec iov; + struct timeval timeout; + fd_set selFDs; + + if (!skdata) { + fprintf(stderr, "<%s>: socketdata is NULL\n", __func__); + return -1; + } + + FD_ZERO(&selFDs); + FD_SET(0, &selFDs); + FD_SET(sockfd, &selFDs); + timeout.tv_sec = 20; + timeout.tv_usec = 0; + + ret = select(sockfd+1, NULL, &selFDs, NULL, &timeout); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed select: <%s>\n", + __func__, strerror(errno)); + return -1; + } + + if (FD_ISSET(sockfd, &selFDs)) { + buffd = skdata->data; + len = skdata->len; + memset(&msgh, 0, sizeof(msgh)); + msgh.msg_control = &cmsg_b; + msgh.msg_controllen = CMSG_LEN(len); + iov.iov_base = "OK"; + iov.iov_len = 2; + msgh.msg_iov = &iov; + msgh.msg_iovlen = 1; + cmsg = CMSG_FIRSTHDR(&msgh); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(len); + memcpy(CMSG_DATA(cmsg), &buffd, len); + + ret = sendmsg(sockfd, &msgh, MSG_DONTWAIT); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed sendmsg: <%s>\n", + __func__, strerror(errno)); + return -1; + } + } + + return 0; +} + +int receivefromsocket(int sockfd, struct socketdata *skdata) +{ + int ret, buffd; + unsigned int len = 0; + char cmsg_b[CMSG_SPACE(sizeof(int))]; + struct cmsghdr *cmsg; + struct msghdr msgh; + struct iovec iov; + fd_set recvFDs; + char data[32]; + + if (!skdata) { + fprintf(stderr, "<%s>: socketdata is NULL\n", __func__); + return -1; + } + + FD_ZERO(&recvFDs); + FD_SET(0, &recvFDs); + FD_SET(sockfd, &recvFDs); + + ret = select(sockfd+1, &recvFDs, NULL, NULL, NULL); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed select: <%s>\n", + __func__, strerror(errno)); + return -1; + } + + if (FD_ISSET(sockfd, &recvFDs)) { + len = sizeof(buffd); + memset(&msgh, 0, sizeof(msgh)); + msgh.msg_control = &cmsg_b; + msgh.msg_controllen = CMSG_LEN(len); + iov.iov_base = data; + iov.iov_len = sizeof(data)-1; + msgh.msg_iov = &iov; + msgh.msg_iovlen = 1; + cmsg = CMSG_FIRSTHDR(&msgh); + cmsg->cmsg_level = SOL_SOCKET; + cmsg->cmsg_type = SCM_RIGHTS; + cmsg->cmsg_len = CMSG_LEN(len); + + ret = recvmsg(sockfd, &msgh, MSG_DONTWAIT); + if (ret < 0) { + fprintf(stderr, "<%s>: Failed recvmsg: <%s>\n", + __func__, strerror(errno)); + return -1; + } + + memcpy(&buffd, CMSG_DATA(cmsg), len); + skdata->data = buffd; + skdata->len = len; + } + return 0; +} + +int closesocket(int sockfd, char *name) +{ + char sockname[MAX_SOCK_NAME_LEN]; + + if (sockfd) + close(sockfd); + sprintf(sockname, "/tmp/%s", name); + unlink(sockname); + shutdown(sockfd, 2); + + return 0; +} diff --git a/tools/testing/selftests/android/ion/ipcsocket.h b/tools/testing/selftests/android/ion/ipcsocket.h new file mode 100644 index 000000000..b3e84498a --- /dev/null +++ b/tools/testing/selftests/android/ion/ipcsocket.h @@ -0,0 +1,35 @@ + +#ifndef _IPCSOCKET_H +#define _IPCSOCKET_H + + +#define MAX_SOCK_NAME_LEN 64 + +char sock_name[MAX_SOCK_NAME_LEN]; + +/* This structure is responsible for holding the IPC data + * data: hold the buffer fd + * len: just the length of 32-bit integer fd + */ +struct socketdata { + int data; + unsigned int len; +}; + +/* This API is used to open the IPC socket connection + * name: implies a unique socket name in the system + * connecttype: implies server(0) or client(1) + */ +int opensocket(int *sockfd, const char *name, int connecttype); + +/* This is the API to send socket data over IPC socket */ +int sendtosocket(int sockfd, struct socketdata *data); + +/* This is the API to receive socket data over IPC socket */ +int receivefromsocket(int sockfd, struct socketdata *data); + +/* This is the API to close the socket connection */ +int closesocket(int sockfd, char *name); + + +#endif |