config GK20A tristate "Nvidia GK20A GPU support" default y help Choose this option if you have an SoC with integrated Nvidia GPU IP. config GK20A_PMU bool "Support GK20A PMU" depends on GK20A default n help Say Y here to enable GK20A PMU features. choice depends on GK20A prompt "Enable GK20A frequency scaling" default GK20A_DEVFREQ optional help Select this entry to enable gk20a scaling config GK20A_DEVFREQ depends on COMMON_CLK && PM_DEVFREQ bool "Use Devfreq" help Select this to use devfreq based scaling. Devfreq is a common framework that allows using variety of different governors and changing between governors on the fly. By default, no governor is selected. endchoice config GK20A_PM_QOS depends on GK20A_DEVFREQ bool "Use PM_QOS constraints for devfreq based scaling" default y help Enable support to pass PM_QOS constraints to devfreq based scaling. config GK20A_RDMA bool "Support GK20A RDMA" depends on GK20A && MMU_NOTIFIER default n help Say Y here to enable GK20A RDMA features. config NVGPU_TRACK_MEM_USAGE bool "Track the usage of system memory in nvgpu" depends on GK20A default n help Say Y here to allow nvgpu to track and keep statistics on the system memory used by the driver. This does recreate some of the kmem_leak tracking but this is also applicable to other OSes which do not have Linux' kmem_leak. config GK20A_CYCLE_STATS bool "Support GK20A GPU CYCLE STATS" depends on GK20A default y help Say Y here to enable the cycle stats debugging features. config GK20A_CTXSW_TRACE bool "Support GK20A Context Switch tracing" depends on GK20A default y help Enable support for the GK20A Context Switch Tracing. In this mode, FECS collects timestamps for contexts loaded on GR engine. This allows tracking context switches on GR engine, as well as identifying processes that submitted work. config TEGRA_GK20A_NVHOST bool "Support interfacing with nvhost hardware" depends on TEGRA_GRHOST || TEGRA_HOST1X depends on GK20A default y help Enable support in GK20A for the nvhost (host1x) dma engine hardware that includes things like hardware syncpts. This requires either TEGRA_GRHOST or TEGRA_HOST1X. config TEGRA_GK20A bool "Enable the GK20A GPU on Tegra" depends on GK20A default y help Enable support for the GK20A graphics engine on Tegra by adding a Tegra platfrom interface to the GK20A driver. config TEGRA_ACR bool "Enable HS bin support on GM20B GPU on Tegra" depends on GK20A && GK20A_PMU default n help Enable Support for Loading High Secure binary, and using Write Protected Regions (WPR) for storing ucodes, and bootstrap PMU, FECS and GPCCS in Low Secure mode. config TEGRA_USE_NA_GPCPLL bool "Enable noise aware mode of GM20B GPCPLL on Tegra" depends on GK20A depends on COMMON_CLK default n help Enable noise aware (NA) mode of GM20b GPCPLL. In this mode PLL output frequency is automatically adjusted when GM20b voltage is fluctuating because of transient PMIC or power distribution tree noise. config GK20A_PCI bool "Support PCIe NVIDIA GPUs on nvgpu" depends on PCI && GK20A default y help Enable support for GPUs on PCIe bus. config GK20A_TRACE_PRINTK bool "Support trace_printk debugging" depends on GK20A && TRACING default n help Enable nvgpu debug facility to redirect debug spew to ftrace. This affects kernel memory use, so should not be enabled by default. config GK20A_VIDMEM bool "Support separate video memory on nvgpu" depends on GK20A default n help Enable support for using and allocating buffers in a distinct video memory aperture (in contrast to general system memory), available on GPUs that have their own banks. PCIe GPUs have this, for example. config NVGPU_SUPPORT_CDE bool "Support extraction of comptags for CDE" depends on GK20A default y help Enable support for extraction of comptags for CDE. config NVGPU_USE_TEGRA_ALLOC_FD bool "Use tegra_alloc_fd() for allocating dma_buf fds for vidmem" depends on GK20A && GK20A_VIDMEM default y help Use tegra_alloc_fd() for allocating dma_buf fds. This allocates the fds above 1024 which exempts them from counting against process fd limit. It is only available in Tegra kernel.