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path: root/drivers/gpu/drm/i915/gem/selftests/mock_context.c
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Diffstat (limited to 'drivers/gpu/drm/i915/gem/selftests/mock_context.c')
-rw-r--r--drivers/gpu/drm/i915/gem/selftests/mock_context.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/selftests/mock_context.c b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
new file mode 100644
index 000000000000..68d50da035e6
--- /dev/null
+++ b/drivers/gpu/drm/i915/gem/selftests/mock_context.c
@@ -0,0 +1,111 @@
+/*
+ * SPDX-License-Identifier: MIT
+ *
+ * Copyright © 2016 Intel Corporation
+ */
+
+#include "mock_context.h"
+#include "selftests/mock_gtt.h"
+
+struct i915_gem_context *
+mock_context(struct drm_i915_private *i915,
+ const char *name)
+{
+ struct i915_gem_context *ctx;
+ struct i915_gem_engines *e;
+ int ret;
+
+ ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+ if (!ctx)
+ return NULL;
+
+ kref_init(&ctx->ref);
+ INIT_LIST_HEAD(&ctx->link);
+ ctx->i915 = i915;
+
+ mutex_init(&ctx->engines_mutex);
+ e = default_engines(ctx);
+ if (IS_ERR(e))
+ goto err_free;
+ RCU_INIT_POINTER(ctx->engines, e);
+
+ INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
+ INIT_LIST_HEAD(&ctx->handles_list);
+ INIT_LIST_HEAD(&ctx->hw_id_link);
+ mutex_init(&ctx->mutex);
+
+ ret = i915_gem_context_pin_hw_id(ctx);
+ if (ret < 0)
+ goto err_engines;
+
+ if (name) {
+ struct i915_hw_ppgtt *ppgtt;
+
+ ctx->name = kstrdup(name, GFP_KERNEL);
+ if (!ctx->name)
+ goto err_put;
+
+ ppgtt = mock_ppgtt(i915, name);
+ if (!ppgtt)
+ goto err_put;
+
+ __set_ppgtt(ctx, ppgtt);
+ }
+
+ return ctx;
+
+err_engines:
+ free_engines(rcu_access_pointer(ctx->engines));
+err_free:
+ kfree(ctx);
+ return NULL;
+
+err_put:
+ i915_gem_context_set_closed(ctx);
+ i915_gem_context_put(ctx);
+ return NULL;
+}
+
+void mock_context_close(struct i915_gem_context *ctx)
+{
+ context_close(ctx);
+}
+
+void mock_init_contexts(struct drm_i915_private *i915)
+{
+ init_contexts(i915);
+}
+
+struct i915_gem_context *
+live_context(struct drm_i915_private *i915, struct drm_file *file)
+{
+ struct i915_gem_context *ctx;
+ int err;
+
+ lockdep_assert_held(&i915->drm.struct_mutex);
+
+ ctx = i915_gem_create_context(i915, 0);
+ if (IS_ERR(ctx))
+ return ctx;
+
+ err = gem_context_register(ctx, file->driver_priv);
+ if (err < 0)
+ goto err_ctx;
+
+ return ctx;
+
+err_ctx:
+ context_close(ctx);
+ return ERR_PTR(err);
+}
+
+struct i915_gem_context *
+kernel_context(struct drm_i915_private *i915)
+{
+ return i915_gem_context_create_kernel(i915, I915_PRIORITY_NORMAL);
+}
+
+void kernel_context_close(struct i915_gem_context *ctx)
+{
+ context_close(ctx);
+}