nvgpu: use kernel overlay features

Update all Kconfig files and Makefiles to rely on the kernel overlay
feature. In particular, don't include any Kconfig files or Makefiles
from other overlays. -I directives in CFLAGS are not yet cleaned up.

Bug 1978395

Change-Id: I449ed2f07949785f2dd90a6833f4d8cd1711519a
Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1566641
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>

1 files changed, 138 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/Kconfig b/drivers/gpu/nvgpu/Kconfig
new file mode 100644
index 00000000..4f90a35c
--- /dev/null
+++ b/drivers/gpu/nvgpu/Kconfig
@@ -0,0 +1,138 @@
+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_DEFAULT_TIMEOUT
+        depends on GK20A
+        int "Default timeout for submits"
+        default 3000
+        help
+          Default timeout for jobs in milliseconds. Set to zero for no timeout.
+
+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_PERFMON
+        optional
+        help
+          Select this entry to enable gk20a scaling
+
+config GK20A_PERFMON
+        bool "Use Perfmon"
+        help
+          Select this to enable built-in perfmon scaling.
+          The built-in scaling option uses simplistic
+          scaling mechanism (if busy, increase frequency and
+          decrease frequency if idle).
+
+config GK20A_DEVFREQ
+        depends on COMMON_CLK
+        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 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 if ARCH_TEGRA_18x_SOC
+        default n
+        help
+          Enable support for GPUs on PCIe bus.
+
+config GK20A_TRACE_PRINTK
+        bool "Support trace_printk debugging"
+        depends on GK20A && FTRACE_PRINTK
+        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.