gpu: nvgpu: gv11b: Abstract IO aperture accessors

Implement T19x specific usermode aperture initialization functions.
Move usermode_regs field to nvgpu_os_linux_t19x, because it is
Linux specific.

JIRA NVGPU-259

Change-Id: I9d6ce243a692ab48209d468288ed85f89fb26770
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1569699
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

4 files changed, 108 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/include/nvgpu/io_t19x.h b/drivers/gpu/nvgpu/include/nvgpu/io_t19x.h
new file mode 100644
index 00000000..f8c7dbbd
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/io_t19x.h
@@ -0,0 +1,29 @@
+/*
+ * Copyright (c) 2017, 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 __NVGPU_IO_T19X_H__
+#define __NVGPU_IO_T19X_H__
+
+#ifdef __KERNEL__
+#include "linux/io_t19x.h"
+#endif
+
+#endif
diff --git a/drivers/gpu/nvgpu/include/nvgpu/linux/io_t19x.h b/drivers/gpu/nvgpu/include/nvgpu/linux/io_t19x.h
new file mode 100644
index 00000000..f71a6ecf
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/linux/io_t19x.h
@@ -0,0 +1,26 @@
+/*
+ * 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_IO_T19X_LINUX_H__
+#define __NVGPU_IO_T19X_LINUX_H__
+
+#include <nvgpu/types.h>
+
+struct gk20a;
+
+void gv11b_usermode_writel(struct gk20a *g, u32 r, u32 v);
+
+#endif
diff --git a/drivers/gpu/nvgpu/include/nvgpu/linux/module_t19x.h b/drivers/gpu/nvgpu/include/nvgpu/linux/module_t19x.h
new file mode 100644
index 00000000..a105c6dc
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/linux/module_t19x.h
@@ -0,0 +1,27 @@
+/*
+ * 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_MODULE_T19X_H__
+#define __NVGPU_MODULE_T19X_H__
+
+struct gk20a;
+
+void t19x_init_support(struct gk20a *g);
+void t19x_remove_support(struct gk20a *g);
+void t19x_lockout_registers(struct gk20a *g);
+void t19x_restore_registers(struct gk20a *g);
+
+#endif
diff --git a/drivers/gpu/nvgpu/include/nvgpu/linux/os_linux_t19x.h b/drivers/gpu/nvgpu/include/nvgpu/linux/os_linux_t19x.h
new file mode 100644
index 00000000..a306bfb8
--- /dev/null
+++ b/drivers/gpu/nvgpu/include/nvgpu/linux/os_linux_t19x.h
@@ -0,0 +1,26 @@
+/*
+ * 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_OS_LINUX_T19X_H
+#define NVGPU_OS_LINUX_T19X_H
+
+#include <linux/compiler.h>
+
+struct nvgpu_os_linux_t19x {
+        void __iomem *usermode_regs;
+        void __iomem *usermode_regs_saved;
+};
+
+#endif