Open source GPL/LGPL release

drivers/gpu/nvgpu/common/vgpu/intr/intr_vgpu.c

@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 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 <nvgpu/vgpu/vgpu.h>
+#include <nvgpu/gk20a.h>
+
+#include <nvgpu/vgpu/vgpu_ivc.h>
+
+#include "intr_vgpu.h"
+#include "common/vgpu/gr/fecs_trace_vgpu.h"
+#include "common/vgpu/fifo/fifo_vgpu.h"
+#include "common/vgpu/fifo/channel_vgpu.h"
+#include "common/vgpu/fifo/tsg_vgpu.h"
+#include "common/vgpu/mm/mm_vgpu.h"
+#include "common/vgpu/gr/gr_vgpu.h"
+
+int vgpu_intr_thread(void *dev_id)
+{
+	struct gk20a *g = dev_id;
+	struct vgpu_priv_data *priv = vgpu_get_priv_data(g);
+
+	while (true) {
+		struct tegra_vgpu_intr_msg *msg;
+		u32 sender;
+		void *handle;
+		size_t size;
+		int err;
+
+		err = vgpu_ivc_recv(TEGRA_VGPU_QUEUE_INTR, &handle,
+					(void **)&msg, &size, &sender);
+		if (err == -ETIME) {
+			continue;
+		}
+		if (err != 0) {
+			nvgpu_do_assert_print(g,
+				"Unexpected vgpu_ivc_recv err=%d", err);
+			continue;
+		}
+
+		if (msg->event == TEGRA_VGPU_EVENT_ABORT) {
+			vgpu_ivc_release(handle);
+			break;
+		}
+
+		switch (msg->event) {
+		case TEGRA_VGPU_EVENT_INTR:
+			if (msg->unit == TEGRA_VGPU_INTR_GR) {
+				vgpu_gr_isr(g, &msg->info.gr_intr);
+			} else if (msg->unit == TEGRA_VGPU_INTR_FIFO) {
+				vgpu_fifo_isr(g, &msg->info.fifo_intr);
+			}
+			break;
+#ifdef CONFIG_NVGPU_FECS_TRACE
+		case TEGRA_VGPU_EVENT_FECS_TRACE:
+			vgpu_fecs_trace_data_update(g);
+			break;
+#endif
+		case TEGRA_VGPU_EVENT_CHANNEL:
+			vgpu_tsg_handle_event(g, &msg->info.channel_event);
+			break;
+		case TEGRA_VGPU_EVENT_SM_ESR:
+			vgpu_gr_handle_sm_esr_event(g, &msg->info.sm_esr);
+			break;
+		case TEGRA_VGPU_EVENT_SEMAPHORE_WAKEUP:
+			g->ops.semaphore_wakeup(g,
+					!!msg->info.sem_wakeup.post_events);
+			break;
+		case TEGRA_VGPU_EVENT_CHANNEL_CLEANUP:
+			vgpu_channel_abort_cleanup(g,
+					msg->info.ch_cleanup.chid);
+			break;
+		case TEGRA_VGPU_EVENT_SET_ERROR_NOTIFIER:
+			vgpu_channel_set_error_notifier(g,
+						&msg->info.set_error_notifier);
+			break;
+		default:
+			nvgpu_err(g, "unknown event %u", msg->event);
+			break;
+		}
+
+		vgpu_ivc_release(handle);
+	}
+
+	while (!nvgpu_thread_should_stop(&priv->intr_handler)) {
+		nvgpu_msleep(10);
+	}
+	return 0;
+}

drivers/gpu/nvgpu/common/vgpu/intr/intr_vgpu.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2019, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * 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 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.
+ */
+
+#ifndef INTR_VGPU_H
+#define INTR_VGPU_H
+
+int vgpu_intr_thread(void *dev_id);
+
+#endif