modprobe.d: Add comments for nvidia options

usr/lib/modprobe.d/nvidia.conf

@@ -1,2 +1,28 @@
+#
+# NVreg_UsePageAttributeTable=1 (Default 0) - Activating the better memory
+# management method (PAT). The PAT method creates a partition type table at a
+# specific address mapped inside the register and utilizes the memory
+# architecture and instruction set more efficiently and faster. If your system
+# can support this feature, it should improve CPU performance.
+#
+# NVreg_InitializeSystemMemoryAllocations=0 (Default 1) - Disables clearing
+# system memory allocation before using it for the GPU. Potentially improves
+# performance, but at the cost of increased security risks. Write "options
+# nvidia NVreg_InitializeSystemMemoryAllocations=1" in
+# /etc/modprobe.d/nvidia.conf, if you want to return the default value. Note:
+# It is possible to use more memory (?)
+#
+# NVreg_DynamicPowerManagement=0x02 - Enables the use of dynamic power
+# management for Turing generation mobile cards, allowing the dGPU to be
+# powered down during idle time.
+#
+# nvidia_drm.modeset=1 (default 0) - Enables modesetting support for the NVIDIA
+# driver. Critical for Wayland support and proper PRIME Offload operation.
+#
+# nvidia_drm.fbdev=1 - Enables hardware framebuffer support. Allows to use
+# native display resolution in tty. This option has no effect on PRIME laptops,
+# as the framebuffer is handled by the iGPU. This parameter is marked as
+# experimental, so bugs may occur.
+#
 options nvidia NVreg_UsePageAttributeTable=1 NVreg_InitializeSystemMemoryAllocations=0 NVreg_DynamicPowerManagement=0x02
 options nvidia_drm modeset=1 fbdev=1