1 files changed, 150 insertions, 0 deletions
diff --git a/gdrm-gem-mmap.c b/gdrm-gem-mmap.c
new file mode 100644
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--- /dev/null
+++ b/gdrm-gem-mmap.c
@@ -0,0 +1,150 @@
+/*
+ * gdrm-gem-mmap.c
+ *
+ * Test Glamo DRM GEM memory mapping
+ *
+ * (c) 2009 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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/>.
+ * Copyright © 2008 Intel Corporation
+ *
+ *
+ * Based on tests/gem_mmap.c from libdrm, to which the following notice applies:
+ *
+ * Copyright © 2008 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:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#define _FILE_OFFSET_BITS 64
+
+#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/mman.h>
+
+#include "drm.h"
+#include "glamo_drm.h"
+#include "drmtest.h"
+
+#define OBJECT_SIZE 16384
+
+int main(int argc, char **argv)
+{
+	int fd;
+	struct drm_glamo_gem_create create;
+	struct drm_glamo_gem_mmap mmap_arg;
+	struct drm_gem_close unref;
+	uint8_t expected[OBJECT_SIZE];
+	uint8_t buf[OBJECT_SIZE];
+	uint8_t *addr;
+	uint16_t *addr16;
+	int ret;
+	int handle;
+	char tmp[4];
+	int i;
+
+	fd = drm_open_any();
+
+	memset(&mmap_arg, 0, sizeof(mmap_arg));
+	mmap_arg.handle = 0x10101010;
+	printf("Testing mmaping of bad object.\n");
+	ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg);
+	assert(ret == -1 && errno == EBADF);
+
+	memset(&create, 0, sizeof(create));
+	create.size = OBJECT_SIZE;
+	ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_CREATE, &create);
+	assert(ret == 0);
+	handle = create.handle;
+
+	printf("Testing mmaping of newly created object.\n");
+	mmap_arg.handle = handle;
+	mmap_arg.offset = 0;
+	ret = ioctl(fd, DRM_IOCTL_GLAMO_GEM_MMAP, &mmap_arg);
+	assert(ret == 0);
+
+	printf("The offset is %8llx\n", (long long int)mmap_arg.offset);
+	addr = mmap(0, OBJECT_SIZE, PROT_READ | PROT_WRITE,
+		    MAP_SHARED, fd, mmap_arg.offset);
+	printf("Virtual address is 0x%p\n", addr);
+
+	printf("Press enter to continue...\n");
+	fgets(tmp, 3, stdin);
+
+	printf("Testing contents of newly created object.\n");
+	addr16 = (uint16_t *)addr;
+	for ( i=0; i<OBJECT_SIZE/2; i++ ) {
+		addr16[i] = 0xABCD;
+	}
+	for ( i=0; i<OBJECT_SIZE/2; i++ ) {
+		if ( addr16[i] != 0xABCD ) {
+			printf("%i = %16x\n", i, addr16[i]);
+		}
+	}
+	for ( i=0; i<OBJECT_SIZE/2; i++ ) {
+		if ( addr16[i] != 0xABCD ) {
+			printf("%i = %16x\n", i, addr16[i]);
+		}
+	}
+
+	printf("Testing that mapping stays after close\n");
+	unref.handle = handle;
+	ret = ioctl(fd, DRM_IOCTL_GEM_CLOSE, &unref);
+	assert(ret == 0);
+	addr16 = (uint16_t *)addr;
+	for ( i=0; i<OBJECT_SIZE/2; i++ ) {
+		if ( addr16[i] != 0xABCD ) {
+			printf("%i = %16x\n", i, addr16[i]);
+		}
+	}
+	for ( i=0; i<OBJECT_SIZE/2; i++ ) {
+		if ( addr16[i] != 0xABCD ) {
+			printf("%i = %16x\n", i, addr16[i]);
+		}
+	}
+
+	printf("Testing unmapping\n");
+	munmap(addr, OBJECT_SIZE);
+
+	close(fd);
+
+	return 0;
+}