1 files changed, 98 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvc0_fence.c b/drivers/gpu/drm/nouveau/nvc0_fence.c
new file mode 100644
index 000000000..e1461c0b0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvc0_fence.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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 Skeggs
+ */
+#include "nouveau_drv.h"
+#include "nouveau_dma.h"
+#include "nouveau_fence.h"
+
+#include "nv50_display.h"
+
+#include <nvif/push906f.h>
+
+#include <nvhw/class/cl906f.h>
+
+static int
+nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
+{
+	struct nvif_push *push = chan->chan.push;
+	int ret = PUSH_WAIT(push, 6);
+	if (ret == 0) {
+		PUSH_MTHD(push, NV906F, SEMAPHOREA,
+			  NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
+
+					SEMAPHOREB, lower_32_bits(virtual),
+					SEMAPHOREC, sequence,
+
+					SEMAPHORED,
+			  NVDEF(NV906F, SEMAPHORED, OPERATION, RELEASE) |
+			  NVDEF(NV906F, SEMAPHORED, RELEASE_WFI, EN) |
+			  NVDEF(NV906F, SEMAPHORED, RELEASE_SIZE, 16BYTE),
+
+					NON_STALL_INTERRUPT, 0);
+		PUSH_KICK(push);
+	}
+	return ret;
+}
+
+static int
+nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
+{
+	struct nvif_push *push = chan->chan.push;
+	int ret = PUSH_WAIT(push, 5);
+	if (ret == 0) {
+		PUSH_MTHD(push, NV906F, SEMAPHOREA,
+			  NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
+
+					SEMAPHOREB, lower_32_bits(virtual),
+					SEMAPHOREC, sequence,
+
+					SEMAPHORED,
+			  NVDEF(NV906F, SEMAPHORED, OPERATION, ACQ_GEQ) |
+			  NVDEF(NV906F, SEMAPHORED, ACQUIRE_SWITCH, ENABLED));
+		PUSH_KICK(push);
+	}
+	return ret;
+}
+
+static int
+nvc0_fence_context_new(struct nouveau_channel *chan)
+{
+	int ret = nv84_fence_context_new(chan);
+	if (ret == 0) {
+		struct nv84_fence_chan *fctx = chan->fence;
+		fctx->base.emit32 = nvc0_fence_emit32;
+		fctx->base.sync32 = nvc0_fence_sync32;
+	}
+	return ret;
+}
+
+int
+nvc0_fence_create(struct nouveau_drm *drm)
+{
+	int ret = nv84_fence_create(drm);
+	if (ret == 0) {
+		struct nv84_fence_priv *priv = drm->fence;
+		priv->base.context_new = nvc0_fence_context_new;
+	}
+	return ret;
+}