v3d: Add a helper library

Just a few little ioctl wrappers that v3d tests will use.

v2: Move the struct above the prototypes.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Petri Latvala <petri.latvala@intel.com> (v1)

1 files changed, 130 insertions, 0 deletions

diff --git a/lib/igt_v3d.c b/lib/igt_v3d.c
new file mode 100644
index 00000000..1a5ede1b
--- /dev/null
+++ b/lib/igt_v3d.c
@@ -0,0 +1,130 @@
+/*
+ * Copyright © 2016 Broadcom
+ *
+ * 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.
+ */
+
+#include <assert.h>
+#include <string.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/mman.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <fcntl.h>
+
+#include "drmtest.h"
+#include "igt_aux.h"
+#include "igt_core.h"
+#include "igt_v3d.h"
+#include "ioctl_wrappers.h"
+#include "intel_reg.h"
+#include "intel_chipset.h"
+#include "v3d_drm.h"
+
+#if NEW_CONTEXT_PARAM_NO_ERROR_CAPTURE_API
+#define LOCAL_CONTEXT_PARAM_NO_ERROR_CAPTURE 0x4
+#endif
+
+/**
+ * SECTION:igt_v3d
+ * @short_description: V3D support library
+ * @title: V3D
+ * @include: igt.h
+ *
+ * This library provides various auxiliary helper functions for writing V3D
+ * tests.
+ */
+
+struct v3d_bo *
+igt_v3d_create_bo(int fd, size_t size)
+{
+	struct v3d_bo *bo = calloc(1, sizeof(*bo));
+
+	struct drm_v3d_create_bo create = {
+		.size = size,
+	};
+
+	do_ioctl(fd, DRM_IOCTL_V3D_CREATE_BO, &create);
+
+	bo->handle = create.handle;
+	bo->offset = create.offset;
+	bo->size = size;
+
+	return bo;
+}
+
+void
+igt_v3d_free_bo(int fd, struct v3d_bo *bo)
+{
+	if (bo->map)
+		munmap(bo->map, bo->size);
+	gem_close(fd, bo->handle);
+	free(bo);
+}
+
+uint32_t
+igt_v3d_get_bo_offset(int fd, uint32_t handle)
+{
+	struct drm_v3d_get_bo_offset get = {
+		.handle = handle,
+	};
+
+	do_ioctl(fd, DRM_IOCTL_V3D_GET_BO_OFFSET, &get);
+
+	return get.offset;
+}
+
+uint32_t
+igt_v3d_get_param(int fd, enum drm_v3d_param param)
+{
+	struct drm_v3d_get_param get = {
+		.param = param,
+	};
+
+	do_ioctl(fd, DRM_IOCTL_V3D_GET_PARAM, &get);
+
+	return get.value;
+}
+
+void *
+igt_v3d_mmap_bo(int fd, uint32_t handle, uint32_t size, unsigned prot)
+{
+	struct drm_v3d_mmap_bo mmap_bo = {
+		.handle = handle,
+	};
+	void *ptr;
+
+	do_ioctl(fd, DRM_IOCTL_V3D_MMAP_BO, &mmap_bo);
+
+	ptr = mmap(0, size, prot, MAP_SHARED, fd, mmap_bo.offset);
+	if (ptr == MAP_FAILED)
+		return NULL;
+	else
+		return ptr;
+}
+
+void igt_v3d_bo_mmap(int fd, struct v3d_bo *bo)
+{
+	bo->map = igt_v3d_mmap_bo(fd, bo->handle, bo->size,
+				  PROT_READ | PROT_WRITE);
+	igt_assert(bo->map);
+}