gpu: nvgpu: add t19x specific nvhost abstraction files

Add new abstraction file common/linux/nvhost_t19x.c
for all nvhost APIs exported from linux/nvhost_t194.h
This file will be compiled only if config
CONFIG_TEGRA_GK20A_NVHOST is set

Export the new headers from file <nvgpu/nvhost_t19x.h>

Also add dummy private header file nvhost_priv_t19x.h
to store definition of private structure nvgpu_nvhost_dev
This file should be deleted when nvgpu-t19x repo
is merged into common nvhost repo

Jira NVGPU-29

Change-Id: I8c08c9242b08cc45f7c99cc400b3e1a720f9439c
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1493792
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>

4 files changed, 96 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/Makefile b/drivers/gpu/nvgpu/Makefile
index d1b6a67c..244b3ed3 100644
--- a/drivers/gpu/nvgpu/Makefile
+++ b/drivers/gpu/nvgpu/Makefile
@@ -20,3 +20,4 @@ nvgpu-y += \
         $(nvgpu-t19x)/gv11b/regops_gv11b.o
 
 nvgpu-$(CONFIG_TEGRA_GK20A) += $(nvgpu-t19x)/gv11b/platform_gv11b_tegra.o
+nvgpu-$(CONFIG_TEGRA_GK20A_NVHOST) += $(nvgpu-t19x)/common/linux/nvhost_t19x.o
diff --git a/drivers/gpu/nvgpu/common/linux/nvhost_priv_t19x.h b/drivers/gpu/nvgpu/common/linux/nvhost_priv_t19x.h
new file mode 100644
index 00000000..7ff6184d
--- /dev/null
+++ b/drivers/gpu/nvgpu/common/linux/nvhost_priv_t19x.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2017, 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_NVHOST_PRIV_T19X_H__
+#define __NVGPU_NVHOST_PRIV_T19X_H__
+
+/*
+ * This file is copy of common/linux/nvhost_priv.h in nvgpu repo
+ * This file should be removed when nvgpu-t19x repo is merged
+ * into common nvgpu repo
+ */
+struct nvgpu_nvhost_dev {
+        struct platform_device *host1x_pdev;
+};
+
+#endif /* __NVGPU_NVHOST_PRIV_T19X_H__ */
diff --git a/drivers/gpu/nvgpu/common/linux/nvhost_t19x.c b/drivers/gpu/nvgpu/common/linux/nvhost_t19x.c
new file mode 100644
index 00000000..0bbb3d72
--- /dev/null
+++ b/drivers/gpu/nvgpu/common/linux/nvhost_t19x.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2017, 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/>.
+ */
+
+#include <linux/nvhost.h>
+#include <linux/nvhost_t194.h>
+
+#include <nvgpu/nvhost_t19x.h>
+
+#include "nvhost_priv_t19x.h"
+
+int nvgpu_nvhost_syncpt_unit_interface_get_aperture(
+                struct nvgpu_nvhost_dev *nvhost_dev,
+                phys_addr_t *base,
+                size_t *size)
+{
+        return nvhost_syncpt_unit_interface_get_aperture(
+                        nvhost_dev->host1x_pdev, base, size);
+}
+
+u32 nvgpu_nvhost_syncpt_unit_interface_get_byte_offset(u32 syncpt_id)
+{
+        return nvhost_syncpt_unit_interface_get_byte_offset(syncpt_id);
+}
diff --git a/drivers/gpu/nvgpu/include/nvgpu/nvhost_t19x.h b/drivers/gpu/nvgpu/include/nvgpu/nvhost_t19x.h
new file mode 100644
index 00000000..c456687b
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/nvhost_t19x.h
@@ -0,0 +1,30 @@
+/*
+ * Copyright (c) 2017, 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_NVHOST_T19X_H__
+#define __NVGPU_NVHOST_T19X_H__
+
+#ifdef CONFIG_TEGRA_GK20A_NVHOST
+struct nvgpu_nvhost_dev;
+
+int nvgpu_nvhost_syncpt_unit_interface_get_aperture(
+                struct nvgpu_nvhost_dev *nvhost_dev,
+                phys_addr_t *base,
+                size_t *size);
+u32 nvgpu_nvhost_syncpt_unit_interface_get_byte_offset(u32 syncpt_id);
+
+#endif
+#endif /* __NVGPU_NVHOST_T19X_H__ */