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authorBenjamin Gaignard <benjamin.gaignard@linaro.org>2017-09-18 13:03:10 +0200
committerBenjamin Gaignard <benjamin.gaignard@linaro.org>2017-09-18 13:03:10 +0200
commite329311dd237b66767b7ad113c87b1fb4c981542 (patch)
tree149e5ae814da947eeecb63cf5b9ee5a619cd608d
parent424864b570e264f414145f987a48b23af5157813 (diff)
downloadion_test_application-e329311dd237b66767b7ad113c87b1fb4c981542.tar.gz
Use new ION ABIHEADmaster
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-rw-r--r--COPYING674
-rw-r--r--ChangeLog0
-rw-r--r--Makefile809
-rw-r--r--NEWS0
-rw-r--r--README0
-rw-r--r--ion.h136
-rw-r--r--test_ion.c92
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diff --git a/COPYING b/COPYING
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+++ b/COPYING
@@ -0,0 +1,674 @@
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+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+ 16. Limitation of Liability.
+
+ IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+ 17. Interpretation of Sections 15 and 16.
+
+ If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ 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.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+ If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+ <program> Copyright (C) <year> <name of author>
+ This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+ You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+ The GNU General Public License does not permit incorporating your program
+into proprietary programs. If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License. But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..e69de29
--- /dev/null
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+# This program is distributed in the hope that it will be useful,
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diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/NEWS
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README
diff --git a/ion.h b/ion.h
new file mode 100644
index 0000000..9e21451
--- /dev/null
+++ b/ion.h
@@ -0,0 +1,136 @@
+/*
+ * drivers/staging/android/uapi/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.
+ *
+ */
+
+#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/test_ion.c b/test_ion.c
index 17ba192..6a46ff0 100644
--- a/test_ion.c
+++ b/test_ion.c
@@ -6,79 +6,57 @@
#include <sys/mman.h>
#include <string.h>
-#include <linux/ion.h>
+#include <ion.h>
-#define ION_DEVICE "/dev/ion"
-#define MAX_BUFFERS 10
+#define ION_DEVICE "/dev/ion"
+#define MAX_HEAPS 8
+#define MAX_LEN 1024*16
int main(int argc, char ** argv)
{
int ion_fd = 0;
- int err = 0;
- int heap = 0;
- int i = 0;
+ int err, i;
+ struct ion_heap_data heaps_data[MAX_HEAPS];
+ struct ion_heap_query query;
- struct ion_allocation_data handle_data[MAX_BUFFERS];
- struct ion_fd_data fd_data[MAX_BUFFERS];
- void *buffer[MAX_BUFFERS];
-
printf("Open ION memory manager\n");
ion_fd = open(ION_DEVICE, O_RDONLY);
if(!ion_fd) {
- printf("Failed to opn ion device - %s", strerror(errno));
+ printf("Failed to open ION device - %s\n", strerror(errno));
return -errno;
- }
-
- if(argc == 2) {
- heap = atoi(argv[1]);
}
- for (i=0; i < MAX_BUFFERS; i++) {
-
- /* Fill ioctl data to get a buffer */
- handle_data[i].len = 4096;
- handle_data[i].align = 0;
- /* get a buffer from cma_zone_x */
- handle_data[i].flags = 1 << heap;
-
- printf("request buffer allocation from heap %d\n", heap);
- err = ioctl(ion_fd, ION_IOC_ALLOC, &handle_data[i]);
- if(err) {
- printf("ION_IOC_ALLOC failed - %s\n", strerror(errno));
- goto out;
- }
-
- /* now get fd from handle */
- fd_data[i].handle = handle_data[i].handle;
-
- printf("get fd from handle %x\n", fd_data[i].handle);
- err = ioctl(ion_fd, ION_IOC_SHARE, &fd_data[i]);
- if(err) {
- printf("ION_IOC_SHARE failed - %s\n", strerror(errno));
- goto err;
- }
-
- printf("mmap fd %d\n", fd_data[i].fd);
- buffer[i] = mmap(0, handle_data[i].len, PROT_READ|PROT_WRITE, MAP_SHARED, fd_data[i].fd, 0);
+ memset(&query, 0, sizeof(query));
+ query.cnt = MAX_HEAPS;
+ query.heaps = (__u64)&heaps_data;
+ err = ioctl(ion_fd, ION_IOC_HEAP_QUERY, &query);
+ if (err) {
+ printf("Can't get ION heaps data %s\n", strerror(errno));
+ goto out;
+ }
- if(buffer[i] == MAP_FAILED) {
- printf("mmap failed - %s\n", strerror(errno));
- err = -errno;
- goto err;
- }
+ printf("Heap name \t\ttype \tid \talloc \tmmap\n");
+ for (i = 0; i < query.cnt; i++) {
+ int fd;
+ struct ion_allocation_data alloc;
+ void *buffer = NULL;
- memset(buffer[i], 0xFF, handle_data[i].len);
+ memset(&alloc, 0, sizeof(alloc));
+ alloc.len = MAX_LEN;
+ alloc.heap_id_mask = heaps_data[i].heap_id;
+ err = ioctl(ion_fd, ION_IOC_ALLOC, &alloc);
+ if (!err)
+ buffer = mmap(0, MAX_LEN, PROT_READ|PROT_WRITE, MAP_SHARED, alloc.fd, 0);
- printf("ION test OK heap %d handle %x fd %d\n", heap, handle_data[i].handle, fd_data[i].fd);
- sleep(2);
- }
- printf("wait 10 seconds before release the buffers\n");
- sleep(10);
-err:
- for ( ; i > 0; i--) {
- printf("release buffer\n");
- ioctl(ion_fd, ION_IOC_FREE, &handle_data[i]);
+ printf("%s \t\t%d \t%d \t%s \t%s\n",
+ heaps_data[i].name,
+ heaps_data[i].type ,
+ heaps_data[i].heap_id,
+ err ? "KO" : "OK",
+ buffer ? "OK": "KO");
+ close(fd);
}
+
out:
printf("close %s\n", ION_DEVICE);
close(ion_fd);