benchmarks: Rename the gem_exec_trace tracer module
Now that we actually install the benchmarks into a sane location,
slightly abuse it to put the tracer for gem_exec_trace alongside.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
diff --git a/benchmarks/gem_exec_tracer.c b/benchmarks/gem_exec_tracer.c
new file mode 100644
index 0000000..ccc2d23
--- /dev/null
+++ b/benchmarks/gem_exec_tracer.c
@@ -0,0 +1,271 @@
+/*
+ * Copyright © 2015 Intel Corporation
+ *
+ * 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.
+ */
+
+#define _GNU_SOURCE /* for RTLD_NEXT */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <dlfcn.h>
+#include <i915_drm.h>
+
+#include "intel_aub.h"
+#include "intel_chipset.h"
+
+static int (*libc_close)(int fd);
+static int (*libc_ioctl)(int fd, unsigned long request, void *argp);
+
+static int drm_fd = -1;
+static FILE *file;
+
+#define DRM_MAJOR 226
+
+enum {
+ ADD_BO = 0,
+ DEL_BO,
+ EXEC,
+};
+
+struct trace_add_bo {
+ uint8_t cmd;
+ uint32_t handle;
+ uint64_t size;
+} __attribute__((packed));
+struct trace_del_bo {
+ uint8_t cmd;
+ uint32_t handle;
+}__attribute__((packed));
+
+struct trace_exec {
+ uint8_t cmd;
+ uint32_t object_count;
+ uint64_t flags;
+}__attribute__((packed));
+
+struct trace_exec_object {
+ uint32_t handle;
+ uint32_t relocation_count;
+ uint64_t alignment;
+ uint64_t flags;
+ uint64_t rsvd1;
+ uint64_t rsvd2;
+}__attribute__((packed));
+
+struct trace_exec_relocation {
+ uint32_t target_handle;
+ uint32_t delta;
+ uint64_t offset;
+ uint32_t read_domains;
+ uint32_t write_domain;
+}__attribute__((packed));
+
+static void __attribute__ ((format(__printf__, 2, 3)))
+fail_if(int cond, const char *format, ...)
+{
+ va_list args;
+
+ if (!cond)
+ return;
+
+ va_start(args, format);
+ vfprintf(stderr, format, args);
+ va_end(args);
+
+ exit(1);
+}
+
+static void
+trace_exec(int fd, const struct drm_i915_gem_execbuffer2 *execbuffer2)
+{
+ const struct drm_i915_gem_exec_object2 *exec_objects =
+ (struct drm_i915_gem_exec_object2 *)(uintptr_t)execbuffer2->buffers_ptr;
+
+ {
+ struct trace_exec t = {
+ EXEC, execbuffer2->buffer_count, execbuffer2->flags
+ };
+ fwrite(&t, sizeof(t), 1, file);
+ }
+
+ for (uint32_t i = 0; i < execbuffer2->buffer_count; i++) {
+ const struct drm_i915_gem_exec_object2 *obj = &exec_objects[i];
+ const struct drm_i915_gem_relocation_entry *relocs =
+ (struct drm_i915_gem_relocation_entry *)(uintptr_t)obj->relocs_ptr;
+ {
+ struct trace_exec_object t = {
+ obj->handle,
+ obj->relocation_count,
+ obj->alignment,
+ obj->flags,
+ obj->rsvd1,
+ obj->rsvd2
+ };
+ fwrite(&t, sizeof(t), 1, file);
+ }
+ for (uint32_t j = 0; j < obj->relocation_count; j++) {
+ struct trace_exec_relocation t = {
+ relocs[j].target_handle,
+ relocs[j].delta,
+ relocs[j].offset,
+ relocs[j].read_domains,
+ relocs[j].write_domain,
+ };
+ fwrite(&t, sizeof(t), 1, file);
+ }
+ }
+
+ fflush(file);
+}
+
+static void
+trace_add(uint32_t handle, uint64_t size)
+{
+ struct trace_add_bo t = { ADD_BO, handle, size };
+ fwrite(&t, sizeof(t), 1, file);
+}
+
+static void
+trace_del(uint32_t handle)
+{
+ struct trace_del_bo t = { DEL_BO, handle };
+ fwrite(&t, sizeof(t), 1, file);
+}
+
+int
+close(int fd)
+{
+ if (fd == drm_fd)
+ drm_fd = -1;
+
+ return libc_close(fd);
+}
+
+int
+ioctl(int fd, unsigned long request, ...)
+{
+ va_list args;
+ void *argp;
+ int ret;
+
+ va_start(args, request);
+ argp = va_arg(args, void *);
+ va_end(args);
+
+ if (_IOC_TYPE(request) == DRM_IOCTL_BASE && drm_fd != fd) {
+ char filename[80];
+ if (file)
+ fclose(file);
+ sprintf(filename, "/tmp/trace.%d", fd);
+ file = fopen(filename, "w+");
+ drm_fd = fd;
+ }
+
+ if (fd == drm_fd) {
+ switch (request) {
+ case DRM_IOCTL_I915_GEM_EXECBUFFER: {
+ return libc_ioctl(fd, request, argp);
+ }
+
+ case DRM_IOCTL_I915_GEM_EXECBUFFER2: {
+ trace_exec(fd, argp);
+ return libc_ioctl(fd, request, argp);
+ }
+
+ case DRM_IOCTL_I915_GEM_CREATE: {
+ struct drm_i915_gem_create *create = argp;
+
+ ret = libc_ioctl(fd, request, argp);
+ if (ret == 0)
+ trace_add(create->handle, create->size);
+
+ return ret;
+ }
+
+ case DRM_IOCTL_I915_GEM_USERPTR: {
+ struct drm_i915_gem_userptr *userptr = argp;
+
+ ret = libc_ioctl(fd, request, argp);
+ if (ret == 0)
+ trace_add(userptr->handle, userptr->user_size);
+ return ret;
+ }
+
+ case DRM_IOCTL_GEM_CLOSE: {
+ struct drm_gem_close *close = argp;
+
+ trace_del(close->handle);
+
+ return libc_ioctl(fd, request, argp);
+ }
+
+ case DRM_IOCTL_GEM_OPEN: {
+ struct drm_gem_open *open = argp;
+
+ ret = libc_ioctl(fd, request, argp);
+ if (ret == 0)
+ trace_add(open->handle, open->size);
+
+ return ret;
+ }
+
+ case DRM_IOCTL_PRIME_FD_TO_HANDLE: {
+ struct drm_prime_handle *prime = argp;
+
+ ret = libc_ioctl(fd, request, argp);
+ if (ret == 0) {
+ off_t size;
+
+ size = lseek(prime->fd, 0, SEEK_END);
+ fail_if(size == -1, "failed to get prime bo size\n");
+ trace_add(prime->handle, size);
+ }
+
+ return ret;
+ }
+
+ default:
+ return libc_ioctl(fd, request, argp);
+ }
+ } else {
+ return libc_ioctl(fd, request, argp);
+ }
+}
+
+static void __attribute__ ((constructor))
+init(void)
+{
+ libc_close = dlsym(RTLD_NEXT, "close");
+ libc_ioctl = dlsym(RTLD_NEXT, "ioctl");
+ fail_if(libc_close == NULL || libc_ioctl == NULL,
+ "failed to get libc ioctl or close\n");
+}