--- /dev/null
+/*
+ * Copyright © 2009 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.
+ *
+ * Authors:
+ * Daniel Vetter <daniel.vetter@ffwll.ch>
+ *
+ */
+
+/** @file gem_gtt_cpu_tlb.c
+ *
+ * This test checks whether gtt tlbs for cpu access are correctly invalidated.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/ioctl.h>
+#include <sys/mman.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "intel_gpu_tools.h"
+
+#define OBJ_SIZE (1024*1024)
+
+#define PAGE_SIZE 4096
+
+static uint32_t
+create_bo(int fd)
+{
+ uint32_t handle;
+ uint32_t *data;
+ int i;
+
+ handle = gem_create(fd, OBJ_SIZE);
+
+ /* Fill the BO with dwords starting at start_val */
+ data = gem_mmap(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
+ for (i = 0; i < OBJ_SIZE/4; i++)
+ data[i] = i;
+ munmap(data, OBJ_SIZE);
+
+ return handle;
+}
+
+int
+main(int argc, char **argv)
+{
+ int fd;
+ int i;
+ uint32_t handle;
+
+ uint32_t *ptr;
+
+ fd = drm_open_any();
+
+ handle = gem_create(fd, OBJ_SIZE);
+
+ /* touch one page */
+ ptr = gem_mmap(fd, handle, OBJ_SIZE, PROT_READ | PROT_WRITE);
+ *ptr = 0xdeadbeef;
+ munmap(ptr, OBJ_SIZE);
+
+ gem_close(fd, handle);
+
+ /* stirr up the page allocator a bit. */
+ ptr = malloc(OBJ_SIZE);
+ assert(ptr);
+ memset(ptr, 0x1, OBJ_SIZE);
+
+ handle = create_bo(fd);
+
+ /* Read a bunch of random subsets of the data and check that they come
+ * out right.
+ */
+ gem_read(fd, handle, 0, ptr, OBJ_SIZE);
+ for (i = 0; i < OBJ_SIZE/4; i++)
+ assert(ptr[i] == i);
+
+ close(fd);
+
+ return 0;
+}