[Piglit] [PATCH v2 02/12] egl_android_native_fence_sync: Add sw_sync lib.
Rafael Antognolli
rafael.antognolli at intel.com
Mon Nov 7 23:05:04 UTC 2016
Add a small library that helps manipulating software fences. They are
useful for testing EGL Android fences, since the latter can be created
out of them.
Signed-off-by: Rafael Antognolli <rafael.antognolli at intel.com>
---
.../spec/egl_android_native_fence_sync/sw_sync.c | 211 +++++++++++++++++++++
.../spec/egl_android_native_fence_sync/sw_sync.h | 50 +++++
2 files changed, 261 insertions(+)
create mode 100644 tests/egl/spec/egl_android_native_fence_sync/sw_sync.c
create mode 100644 tests/egl/spec/egl_android_native_fence_sync/sw_sync.h
diff --git a/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c
new file mode 100644
index 0000000..4e8117f
--- /dev/null
+++ b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.c
@@ -0,0 +1,211 @@
+/*
+ * Copyright 2012 Google, Inc
+ * Copyright © 2016 Collabora, Ltd.
+ *
+ * Based on the implementation from the Android Open Source Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Robert Foss <robert.foss at collabora.com>
+ */
+
+#include <fcntl.h>
+#include <poll.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <linux/sync_file.h>
+#include <sys/ioctl.h>
+
+#include "sw_sync.h"
+
+#ifndef SW_SYNC_IOC_INC
+struct sw_sync_create_fence_data {
+ __u32 value;
+ char name[32];
+ __s32 fence;
+};
+
+#define SW_SYNC_IOC_MAGIC 'W'
+#define SW_SYNC_IOC_CREATE_FENCE _IOWR(SW_SYNC_IOC_MAGIC, 0,\
+ struct sw_sync_create_fence_data)
+#define SW_SYNC_IOC_INC _IOW(SW_SYNC_IOC_MAGIC, 1, __u32)
+#endif
+
+#define DEVFS_SW_SYNC "/dev/sw_sync"
+#define DEBUGFS_SW_SYNC "/sys/kernel/debug/sync/sw_sync"
+
+bool sw_sync_is_supported(void)
+{
+ if(access(DEVFS_SW_SYNC, R_OK | W_OK) != -1) {
+ return true;
+ } else if (access(DEBUGFS_SW_SYNC, R_OK | W_OK) != -1 ) {
+ return true;
+ }
+
+ return false;
+}
+
+int sw_sync_fd_is_valid(int fd)
+{
+ int status;
+
+ if (fd < 0)
+ return 0;
+
+ status = fcntl(fd, F_GETFD, 0);
+ return status >= 0;
+}
+
+static
+void sw_sync_fd_close(int fd)
+{
+ if (!sw_sync_fd_is_valid(fd))
+ return;
+
+ close(fd);
+}
+
+int sw_sync_timeline_create(void)
+{
+ int fd = open(DEVFS_SW_SYNC, O_RDWR);
+
+ if (!sw_sync_fd_is_valid(fd))
+ fd = open(DEBUGFS_SW_SYNC, O_RDWR);
+
+ return fd;
+}
+
+void sw_sync_timeline_destroy(int fd)
+{
+ return sw_sync_fd_close(fd);
+}
+
+void sw_sync_fence_destroy(int fd)
+{
+ return sw_sync_fd_close(fd);
+}
+
+int sw_sync_fence_create(int fd, int32_t seqno)
+{
+ struct sw_sync_create_fence_data data = {};
+ data.value = seqno;
+
+ if (fd >= 0) {
+ ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data);
+ return data.fence;
+ } else {
+ ioctl(fd, SW_SYNC_IOC_CREATE_FENCE, &data);
+ return -1;
+ }
+}
+
+void sw_sync_timeline_inc(int fd, uint32_t count)
+{
+ uint32_t arg = count;
+
+ if (fd == 0 || fd == -1)
+ return;
+
+ ioctl(fd, SW_SYNC_IOC_INC, &arg);
+}
+
+static struct sync_file_info *sync_file_info(int fd)
+{
+ struct sync_file_info *info;
+ struct sync_fence_info *fence_info;
+ int err, num_fences;
+
+ info = calloc(1, sizeof(*info));
+ if (info == NULL)
+ return NULL;
+
+ err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
+ if (err < 0) {
+ free(info);
+ return NULL;
+ }
+
+ num_fences = info->num_fences;
+
+ if (num_fences) {
+ info->flags = 0;
+ info->num_fences = num_fences;
+
+ fence_info = calloc(num_fences, sizeof(*fence_info));
+ if (!fence_info) {
+ free(info);
+ return NULL;
+ }
+
+ info->sync_fence_info = (uint64_t)(unsigned long) (fence_info);
+
+ err = ioctl(fd, SYNC_IOC_FILE_INFO, info);
+ if (err < 0) {
+ free(fence_info);
+ free(info);
+ return NULL;
+ }
+ }
+
+ return info;
+}
+
+static void sync_file_info_free(struct sync_file_info *info)
+{
+ free((void *)(uintptr_t)info->sync_fence_info);
+ free(info);
+}
+
+int sw_sync_fence_size(int fd)
+{
+ int count;
+ struct sync_file_info *info = sync_file_info(fd);
+
+ if (!info)
+ return 0;
+
+ count = info->num_fences;
+
+ sync_file_info_free(info);
+
+ return count;
+}
+
+int sw_sync_fence_count_status(int fd, int status)
+{
+ int i, count = 0;
+ struct sync_fence_info *fence_info = NULL;
+ struct sync_file_info *info = sync_file_info(fd);
+
+ if (!info)
+ return -1;
+
+ fence_info = (struct sync_fence_info *)(uintptr_t)info->sync_fence_info;
+ for (i = 0 ; i < info->num_fences ; i++) {
+ if (fence_info[i].status == status)
+ count++;
+ }
+
+ sync_file_info_free(info);
+
+ return count;
+}
diff --git a/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h
new file mode 100644
index 0000000..4deae6e
--- /dev/null
+++ b/tests/egl/spec/egl_android_native_fence_sync/sw_sync.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright 2012 Google, Inc
+ * Copyright © 2016 Collabora, Ltd.
+ *
+ * Based on the implementation from the Android Open Source Project
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ * Robert Foss <robert.foss at collabora.com>
+ */
+
+#ifndef SW_SYNC_H
+#define SW_SYNC_H
+
+#include <stdbool.h>
+
+#define SW_SYNC_FENCE_STATUS_ERROR (-1)
+#define SW_SYNC_FENCE_STATUS_ACTIVE (0)
+#define SW_SYNC_FENCE_STATUS_SIGNALED (1)
+
+bool sw_sync_is_supported(void);
+int sw_sync_fd_is_valid(int fd);
+int sw_sync_timeline_create(void);
+void sw_sync_timeline_destroy(int timeline);
+void sw_sync_fence_destroy(int fence);
+int sw_sync_fence_create(int fd, int32_t seqno);
+void sw_sync_timeline_inc(int fd, uint32_t count);
+int sw_sync_fence_size(int fd);
+int sw_sync_fence_count_status(int fd, int status);
+
+#endif
+
--
2.7.4
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