gpu: nvgpu: Move Linux files away from common

Move all Linux source code files to drivers/gpu/nvgpu/os/linux from
drivers/gpu/nvgpu/common/linux. This changes the meaning of common
to be OS independent.

JIRA NVGPU-598
JIRA NVGPU-601

Change-Id: Ib7f2a43d3688bb0d0b7dcc48469a6783fd988ce9
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1747714
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 96 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/os/linux/channel.h b/drivers/gpu/nvgpu/os/linux/channel.h
new file mode 100644
index 00000000..4a58b10c
--- /dev/null
+++ b/drivers/gpu/nvgpu/os/linux/channel.h
@@ -0,0 +1,96 @@
+/*
+ * Copyright (c) 2017-2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef __NVGPU_CHANNEL_H__
+#define __NVGPU_CHANNEL_H__
+
+#include <linux/workqueue.h>
+#include <linux/dma-buf.h>
+
+#include <nvgpu/types.h>
+
+struct channel_gk20a;
+struct nvgpu_gpfifo;
+struct nvgpu_submit_gpfifo_args;
+struct nvgpu_channel_fence;
+struct gk20a_fence;
+struct fifo_profile_gk20a;
+struct nvgpu_os_linux;
+
+struct sync_fence;
+struct sync_timeline;
+
+struct nvgpu_channel_completion_cb {
+        /*
+         * Signal channel owner via a callback, if set, in job cleanup with
+         * schedule_work. Means that something finished on the channel (perhaps
+         * more than one job).
+         */
+        void (*fn)(struct channel_gk20a *, void *);
+        void *user_data;
+        /* Make access to the two above atomic */
+        struct nvgpu_spinlock lock;
+        /* Per-channel async work task, cannot reschedule itself */
+        struct work_struct work;
+};
+
+struct nvgpu_error_notifier {
+        struct dma_buf *dmabuf;
+        void *vaddr;
+
+        struct nvgpu_notification *notification;
+
+        struct nvgpu_mutex mutex;
+};
+
+/*
+ * This struct contains fence_related data.
+ * e.g. sync_timeline for sync_fences.
+ */
+struct nvgpu_os_fence_framework {
+        struct sync_timeline *timeline;
+};
+
+struct nvgpu_channel_linux {
+        struct channel_gk20a *ch;
+
+        struct nvgpu_os_fence_framework fence_framework;
+
+        struct nvgpu_channel_completion_cb completion_cb;
+        struct nvgpu_error_notifier error_notifier;
+
+        struct dma_buf *cyclestate_buffer_handler;
+};
+
+u32 nvgpu_submit_gpfifo_user_flags_to_common_flags(u32 user_flags);
+int nvgpu_init_channel_support_linux(struct nvgpu_os_linux *l);
+void nvgpu_remove_channel_support_linux(struct nvgpu_os_linux *l);
+
+struct channel_gk20a *gk20a_open_new_channel_with_cb(struct gk20a *g,
+                void (*update_fn)(struct channel_gk20a *, void *),
+                void *update_fn_data,
+                int runlist_id,
+                bool is_privileged_channel);
+
+int gk20a_submit_channel_gpfifo(struct channel_gk20a *c,
+                                struct nvgpu_gpfifo_entry *gpfifo,
+                                struct nvgpu_submit_gpfifo_args *args,
+                                u32 num_entries,
+                                u32 flags,
+                                struct nvgpu_channel_fence *fence,
+                                struct gk20a_fence **fence_out,
+                                struct fifo_profile_gk20a *profile);
+
+#endif /* __NVGPU_CHANNEL_H__ */