1NVK 2=== 3 4NVK is a Vulkan driver for Nvidia GPUs. 5 6Hardware support 7---------------- 8 9NVK currently supports Turing (RTX 20XX and GTX 16XX) and later GPUs. 10Eventually, we plan to support as far back as Kepler (GeForce 600 and 700 11series) GPUs but anything pre-Turing is currently disabled by default. 12 13Kernel requirements 14------------------- 15 16NVK requires at least a Linux 6.6 kernel 17 18Conformance status: 19------------------- 20 21NVK is not currently conformant on any hardware. As of the writing of this 22documentation, it was failing about 2000 tests with the current feature 23set. 24 25Debugging 26--------- 27 28Here are a few environment variable debug environment variables 29specific to NVK: 30 31:envvar:`NVK_DEBUG`: 32 a comma-separated list of named flags, which do various things: 33 34 ``push_dump`` 35 Dumps all pusbufs to stderr on submit. This requires that 36 ``push_sync`` also be set. 37 ``push_sync`` 38 Waits for submit to complete before continuing 39 ``zero_memory`` 40 Zeros all VkDeviceMemory objects upon creation 41 42:envvar:`NVK_I_WANT_A_BROKEN_VULKAN_DRIVER` 43 If defined to ``1`` or ``true``, this will enable enumeration of all 44 GPUs Kepler and later, including GPUs for which hardware support is 45 poorly tested or completely broken. This is intended for developer use 46 only. 47 48Hardware Documentation 49---------------------- 50 51What little documentation we have can be found in the `NVIDIA open-gpu-doc 52repository <https://github.com/NVIDIA/open-gpu-doc>`__. The majority of 53our documentation comes in the form of class headers which describe the 54class state registers. 55