intel: Add a none working GEM backend for intel

1 files changed, 79 insertions, 0 deletions

diff --git a/src/gallium/winsys/drm/intel/gem/intel_be_context.c b/src/gallium/winsys/drm/intel/gem/intel_be_context.c
new file mode 100644
index 0000000000..92fc2dd767
--- /dev/null
+++ b/src/gallium/winsys/drm/intel/gem/intel_be_context.c
@@ -0,0 +1,79 @@
+
+#include "intel_be_device.h"
+#include "intel_be_context.h"
+#include "intel_be_batchbuffer.h"
+
+#include "i915_drm.h"
+
+static struct i915_batchbuffer *
+intel_be_batch_get(struct i915_winsys *sws)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+	return &intel->batch->base;
+}
+
+static void
+intel_be_batch_reloc(struct i915_winsys *sws,
+		     struct pipe_buffer *buf,
+		     unsigned access_flags,
+		     unsigned delta)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+	drm_intel_bo *bo = intel_bo(buf);
+	int ret;
+	uint32_t read = 0;
+	uint32_t write = 0;
+
+	if (access_flags & I915_BUFFER_ACCESS_WRITE) {
+		write = I915_GEM_DOMAIN_RENDER;
+	}
+
+	if (access_flags & I915_BUFFER_ACCESS_READ) {
+		read = I915_GEM_DOMAIN_SAMPLER |
+		       I915_GEM_DOMAIN_INSTRUCTION |
+		       I915_GEM_DOMAIN_VERTEX;
+	}
+
+	ret = intel_be_offset_relocation(intel->batch,
+	                                 delta,
+	                                 bo,
+	                                 read,
+	                                 write);
+	/* TODO change return type */
+	/* return ret; */
+}
+
+static void
+intel_be_batch_flush(struct i915_winsys *sws,
+		     struct pipe_fence_handle **fence)
+{
+	struct intel_be_context *intel = intel_be_context(sws);
+	struct intel_be_fence **f = (struct intel_be_fence **)fence;
+
+	if (fence && *fence)
+		assert(0);
+
+	intel_be_batchbuffer_flush(intel->batch, f);
+}
+
+boolean
+intel_be_init_context(struct intel_be_context *intel, struct intel_be_device *device)
+{
+	assert(intel);
+	assert(device);
+	intel->device = device;
+
+	intel->base.batch_get = intel_be_batch_get;
+	intel->base.batch_reloc = intel_be_batch_reloc;
+	intel->base.batch_flush = intel_be_batch_flush;
+
+	intel->batch = intel_be_batchbuffer_alloc(intel);
+
+	return true;
+}
+
+void
+intel_be_destroy_context(struct intel_be_context *intel)
+{
+	intel_be_batchbuffer_free(intel->batch);
+}