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-rw-r--r--tests/gem_ctx_exec.c139
1 files changed, 139 insertions, 0 deletions
diff --git a/tests/gem_ctx_exec.c b/tests/gem_ctx_exec.c
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+++ b/tests/gem_ctx_exec.c
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+/*
+ * Copyright © 2012 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:
+ * Ben Widawsky <ben@bwidawsk.net>
+ *
+ */
+
+/*
+ * This test covers basic context switch functionality
+ */
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.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/ioctl.h>
+#include <sys/mman.h>
+#include <sys/time.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+
+struct local_drm_i915_gem_context_create {
+ __u32 ctx_id;
+ __u32 pad;
+};
+
+struct local_drm_i915_gem_context_destroy {
+ __u32 ctx_id;
+ __u32 pad;
+};
+
+#define CONTEXT_CREATE_IOCTL DRM_IOWR(DRM_COMMAND_BASE + 0x2d, struct local_drm_i915_gem_context_create)
+#define CONTEXT_DESTROY_IOCTL DRM_IOWR(DRM_COMMAND_BASE + 0x23, struct local_drm_i915_gem_context_destroy)
+
+static uint32_t context_create(int fd)
+{
+ struct local_drm_i915_gem_context_create create;
+ int ret;
+
+ ret = drmIoctl(fd, CONTEXT_CREATE_IOCTL, &create);
+ if (ret == -1 && (errno == ENODEV || errno == EINVAL))
+ exit(77);
+ else if (ret)
+ abort();
+
+ return create.ctx_id;
+}
+
+static void context_destroy(int fd, uint32_t ctx_id)
+{
+ struct local_drm_i915_gem_context_destroy destroy;
+ destroy.ctx_id = ctx_id;
+ do_ioctl(fd, CONTEXT_DESTROY_IOCTL, &destroy);
+}
+
+/* Copied from gem_exec_nop.c */
+static int exec(int fd, uint32_t handle, int ring, int ctx_id)
+{
+ struct drm_i915_gem_execbuffer2 execbuf;
+ struct drm_i915_gem_exec_object2 gem_exec;
+ int ret = 0;
+
+ gem_exec.handle = handle;
+ gem_exec.relocation_count = 0;
+ gem_exec.relocs_ptr = 0;
+ gem_exec.alignment = 0;
+ gem_exec.offset = 0;
+ gem_exec.flags = 0;
+ gem_exec.rsvd1 = 0;
+ gem_exec.rsvd2 = 0;
+
+ execbuf.buffers_ptr = (uintptr_t)&gem_exec;
+ execbuf.buffer_count = 1;
+ execbuf.batch_start_offset = 0;
+ execbuf.batch_len = 8;
+ execbuf.cliprects_ptr = 0;
+ execbuf.num_cliprects = 0;
+ execbuf.DR1 = 0;
+ execbuf.DR4 = 0;
+ execbuf.flags = ring;
+ i915_execbuffer2_set_context_id(execbuf, ctx_id);
+ execbuf.rsvd2 = 0;
+
+ ret = drmIoctl(fd, DRM_IOCTL_I915_GEM_EXECBUFFER2,
+ &execbuf);
+ gem_sync(fd, handle);
+
+ return ret;
+}
+
+#define MI_BATCH_BUFFER_END (0xA<<23)
+int main(int argc, char *argv[])
+{
+ uint32_t handle;
+ uint32_t batch[2] = {0, MI_BATCH_BUFFER_END};
+ uint32_t ctx_id;
+ int fd;
+ fd = drm_open_any();
+
+ ctx_id = context_create(fd);
+ handle = gem_create(fd, 4096);
+
+ gem_write(fd, handle, 0, batch, sizeof(batch));
+ assert(exec(fd, handle, I915_EXEC_RENDER, ctx_id) == 0);
+ context_destroy(fd, ctx_id);
+
+ ctx_id = context_create(fd);
+ assert(exec(fd, handle, I915_EXEC_RENDER, ctx_id) == 0);
+ context_destroy(fd, ctx_id);
+
+ exit(EXIT_SUCCESS);
+}