Revert "gpu: nvgpu: enable CONFIG_NVGPU_VPR for all kernels"

This reverts commit 6b72b2a4e7.

JIRA LS-458
Bug 200754700

Change-Id: I920431d82364f50c25c16fe6af6a084240f6a0ec
Signed-off-by: Omprakash Shewale <oshewale@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2652864

drivers/gpu/nvgpu/Makefile.linux.configs

@@ -127,7 +127,10 @@ ifeq ($(CONFIG_TEGRA_GR_VIRTUALIZATION),y)
 CONFIG_NVGPU_GR_VIRTUALIZATION := y
 endif
 
+# Support for NVGPU VPR
+ifeq ($(CONFIG_TEGRA_VPR),y)
 CONFIG_NVGPU_VPR := y
+endif
 
 # Support Tegra fuse
 ifeq ($(CONFIG_TEGRA_KFUSE),y)

drivers/gpu/nvgpu/include/nvgpu/vpr.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019-2020, 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"),
@@ -25,18 +25,6 @@
 
 #include <nvgpu/types.h>
 
-#ifdef __KERNEL__
-#include <linux/version.h>
-
-/*
- * VPR resize is enabled only on 4.9 kernel because kernel core mm changes to
- * support it are intrusive and they can't be upstreamed easily. Upstream
- * kernel will have support for static VPR. Note that static VPR is
- * supported on all kernels.
- */
-#define NVGPU_VPR_RESIZE_SUPPORTED (LINUX_VERSION_CODE < KERNEL_VERSION(4, 10, 0))
-#endif /* __KERNEL__ */
-
 #ifdef CONFIG_NVGPU_VPR
 bool nvgpu_is_vpr_resize_enabled(void);
 #else

drivers/gpu/nvgpu/os/linux/module.c

@@ -1,7 +1,7 @@
 /*
  * GK20A Graphics
  *
- * Copyright (c) 2011-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2011-2021, 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,
@@ -26,10 +26,7 @@
 #include <linux/reset.h>
 #include <linux/reboot.h>
 #include <linux/notifier.h>
-
+#ifdef CONFIG_NVGPU_VPR
-#include <nvgpu/vpr.h>
-
-#if NVGPU_VPR_RESIZE_SUPPORTED
 #include <linux/platform/tegra/common.h>
 #endif
 #include <linux/pci.h>
@@ -1007,7 +1004,7 @@ void gk20a_remove_support(struct gk20a *g)
 	struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
 	struct sim_nvgpu_linux *sim_linux;
 
-#if NVGPU_VPR_RESIZE_SUPPORTED
+#ifdef CONFIG_NVGPU_VPR
 	if (nvgpu_is_enabled(g, NVGPU_SUPPORT_VPR)) {
 		tegra_unregister_idle_unidle(gk20a_do_idle);
 	}
@@ -1082,7 +1079,7 @@ static int gk20a_init_support(struct platform_device *pdev)
 	void __iomem *addr;
 	int err = -ENOMEM;
 
-#if NVGPU_VPR_RESIZE_SUPPORTED
+#ifdef CONFIG_NVGPU_VPR
 	tegra_register_idle_unidle(gk20a_do_idle, gk20a_do_unidle, g);
 #endif
 

drivers/gpu/nvgpu/os/linux/platform_gk20a_tegra.c

@@ -1,7 +1,7 @@
 /*
  * GK20A Tegra Platform Interface
  *
- * Copyright (c) 2014-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2014-2021, 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,
@@ -21,12 +21,10 @@
 #include <uapi/linux/nvgpu.h>
 #include <linux/dma-buf.h>
 #include <linux/reset.h>
-#include <nvgpu/vpr.h>
-
 #if defined(CONFIG_TEGRA_DVFS)
 #include <linux/tegra_soctherm.h>
 #endif
-#if defined(CONFIG_NVGPU_TEGRA_FUSE) || NVGPU_VPR_RESIZE_SUPPORTED
+#if defined(CONFIG_NVGPU_TEGRA_FUSE) || defined(CONFIG_NVGPU_VPR)
 #include <linux/platform/tegra/common.h>
 #endif
 
@@ -695,9 +693,7 @@ int gk20a_tegra_init_secure_alloc(struct gk20a_platform *platform)
 		 * On simulation platform, VPR is only supported with
 		 * vdk frontdoor boot and gpu frontdoor mode.
 		 */
-#if NVGPU_VPR_RESIZE_SUPPORTED
 		tegra_unregister_idle_unidle(gk20a_do_idle);
-#endif
 		nvgpu_log_info(g,
 			"VPR is not supported on simulation platform");
 		return 0;
@@ -720,9 +716,7 @@ int gk20a_tegra_init_secure_alloc(struct gk20a_platform *platform)
 	/* Some platforms disable VPR. In that case VPR allocations always
 	 * fail. Just disable VPR usage in nvgpu in that case. */
 	if (dma_mapping_error(&tegra_vpr_dev, iova)) {
-#if NVGPU_VPR_RESIZE_SUPPORTED
 		tegra_unregister_idle_unidle(gk20a_do_idle);
-#endif
 		return 0;
 	}
 

drivers/gpu/nvgpu/os/linux/vpr.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019-2022, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2019, 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,
@@ -14,16 +14,9 @@
 #include <nvgpu/vpr.h>
 
 #include <linux/init.h>
-
-#if NVGPU_VPR_RESIZE_SUPPORTED
 #include <linux/platform/tegra/common.h>
-#endif
 
 bool nvgpu_is_vpr_resize_enabled(void)
 {
-#if NVGPU_VPR_RESIZE_SUPPORTED
 	return tegra_is_vpr_resize_enabled();
-#else
-	return false;
-#endif
 }