drm/tegra: add T186 support to TSEC

Define tsec_t186_config/tsecb_t186_config and
tsec_t186_ops for TSEC

Define .load_regs = tsec_load_streamid_regs() for TSEC
streamid support

Bug 1704301

Change-Id: Ibf3219973627802ee4301c5a23e766d9953dbc3b
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1029501
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Reviewed-by: Shridhar Rasal <srasal@nvidia.com>

3 files changed, 84 insertions, 1 deletions

diff --git a/drivers/gpu/drm/tegra/Makefile b/drivers/gpu/drm/tegra/Makefile
index ff2e239fc..048a3f3c2 100644
--- a/drivers/gpu/drm/tegra/Makefile
+++ b/drivers/gpu/drm/tegra/Makefile
@@ -5,6 +5,7 @@ tegra-drm-t186-y = \
         vic_t186.o \
         nvenc_t186.o \
         nvdec_t186.o \
-        nvjpg_t186.o
+        nvjpg_t186.o \
+        tsec_t186.o
 
 obj-$(CONFIG_TEGRA_HOST1X) += tegra-drm-t186.o
diff --git a/drivers/gpu/drm/tegra/tsec_t186.c b/drivers/gpu/drm/tegra/tsec_t186.c
new file mode 100644
index 000000000..5a47bbc28
--- /dev/null
+++ b/drivers/gpu/drm/tegra/tsec_t186.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2016 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 "drm.h"
+#include "tsec_t186.h"
+
+#include <linux/iommu.h>
+
+static int tsec_load_streamid_regs(struct tegra_drm_client *client)
+{
+        struct tsec *tsec = to_tsec(client);
+        int streamid = -EINVAL;
+
+        streamid = iommu_get_hwid(tsec->dev->archdata.iommu, tsec->dev, 0);
+
+        if (streamid >= 0) {
+                tsec_writel(tsec, streamid, TSEC_THI_STREAMID0);
+                tsec_writel(tsec, streamid, TSEC_THI_STREAMID1);
+        }
+
+        return 0;
+}
+
+static const struct tegra_drm_client_ops tsec_t186_ops = {
+        .open_channel = tsec_open_channel,
+        .close_channel = tsec_close_channel,
+        .submit = tegra_drm_submit,
+        .load_regs = tsec_load_streamid_regs,
+};
+
+const struct tsec_config tsec_t186_config = {
+        .ucode_name = "tegra18x/nvhost_tsec.fw",
+        .drm_client_ops = &tsec_t186_ops,
+        .class_id = HOST1X_CLASS_TSEC,
+};
+
+const struct tsec_config tsecb_t186_config = {
+        .ucode_name = "tegra18x/nvhost_tsec.fw",
+        .drm_client_ops = &tsec_t186_ops,
+        .class_id = HOST1X_CLASS_TSECB,
+};
diff --git a/drivers/gpu/drm/tegra/tsec_t186.h b/drivers/gpu/drm/tegra/tsec_t186.h
new file mode 100644
index 000000000..e78ea2cf8
--- /dev/null
+++ b/drivers/gpu/drm/tegra/tsec_t186.h
@@ -0,0 +1,28 @@
+/*
+ * Copyright (C) 2016 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 TEGRA_TSEC_T186_H
+#define TEGRA_TSEC_T186_H
+
+#include "tsec.h"
+
+#define TSEC_THI_STREAMID0      0x30
+#define TSEC_THI_STREAMID1      0x34
+
+extern const struct tsec_config tsec_t186_config;
+extern const struct tsec_config tsecb_t186_config;
+
+#endif