nvidia-oot: Add aon kmd module

- This patch includes AON-KMD module as part of OOT kernel.

Bug 3583580

Change-Id: I531731136189d76ebb4d3f2880e8f46913f390f4
Signed-off-by: Akhilesh Khumbum <akhumbum@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2870990
Reviewed-by: Robert Collins <rcollins@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>

drivers/platform/tegra/aon/tegra-aon-hsp.c

@@ -0,0 +1,66 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2020-2023, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
+ */
+
+#include <linux/io.h>
+
+#include <aon.h>
+
+#define SHRD_MBOX_OFFSET 0x8000
+#define SHRD_SEM_OFFSET	 0x10000
+#define SHRD_SEM_SET	 0x4u
+#define SHRD_SEM_CLR	 0x8u
+#define AON_SS_MAX	 4
+#define AON_SM_MAX	 8
+#define MBOX_TAG         BIT(32)
+
+static void __iomem *tegra_aon_hsp_sm_reg(const struct tegra_aon *aon, u32 sm)
+{
+	return aon_reg(aon, hsp_sm_base_r()) + (SHRD_MBOX_OFFSET * sm);
+}
+
+void tegra_aon_hsp_sm_write(const struct tegra_aon *aon, u32 sm, u32 value)
+{
+	void __iomem *reg;
+
+	WARN_ON(sm >= AON_SM_MAX);
+	reg = tegra_aon_hsp_sm_reg(aon, sm);
+
+	writel(MBOX_TAG | value, reg);
+}
+
+static void __iomem *tegra_aon_hsp_ss_reg(const struct tegra_aon *aon, u32 ss)
+{
+	return aon_reg(aon, hsp_ss_base_r()) + (SHRD_SEM_OFFSET * ss);
+}
+
+u32 tegra_aon_hsp_ss_status(const struct tegra_aon *aon, u32 ss)
+{
+	void __iomem *reg;
+
+	WARN_ON(ss >= AON_SS_MAX);
+	reg = tegra_aon_hsp_ss_reg(aon, ss);
+
+	return readl(reg);
+}
+
+void tegra_aon_hsp_ss_set(const struct tegra_aon *aon, u32 ss, u32 bits)
+{
+	void __iomem *reg;
+
+	WARN_ON(ss >= AON_SS_MAX);
+	reg = tegra_aon_hsp_ss_reg(aon, ss);
+
+	writel(bits, reg + SHRD_SEM_SET);
+}
+
+void tegra_aon_hsp_ss_clr(const struct tegra_aon *aon, u32 ss, u32 bits)
+{
+	void __iomem *reg;
+
+	WARN_ON(ss >= AON_SS_MAX);
+	reg = tegra_aon_hsp_ss_reg(aon, ss);
+
+	writel(bits, reg + SHRD_SEM_CLR);
+}