gpu: nvgpu: Initialize usermode regs for Volta dGPU

Initialize usermode registers also for Volta GPU behind PCIe.

Change-Id: Id621a74838839e4d98dfd0828c1ea5a0d54baa2d
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1579121
Reviewed-by: David Martinez Nieto <dmartineznie@nvidia.com>
Tested-by: David Martinez Nieto <dmartineznie@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>

1 files changed, 24 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/pci_t19x.c b/drivers/gpu/nvgpu/common/linux/pci_t19x.c
new file mode 100644
index 00000000..54efd68e
--- /dev/null
+++ b/drivers/gpu/nvgpu/common/linux/pci_t19x.c
@@ -0,0 +1,24 @@
+/*
+ * 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.
+ */
+
+#include <nvgpu/types.h>
+
+#include <nvgpu/hw/gv11b/hw_usermode_gv11b.h>
+
+#include "common/linux/os_linux.h"
+
+void t19x_nvgpu_pci_init_support(struct nvgpu_os_linux *l)
+{
+        l->t19x.usermode_regs = l->regs + usermode_cfg0_r();
+        l->t19x.usermode_regs_saved = l->t19x.usermode_regs;
+}