Some distros might use old kernel source but with some latest upstream
kernel patches backported to their kernel source tree. To deal with this
scenario and avoid kernel compilation failure, use conftest to check the
existence of features against the kernel source tree which the OOT
modules are built upon and do the conditional build based on the test
result generated with the conftest tool.
Use NV_DEVFREQ_HAS_FREQ_TABLE to determine whether freq_table field is
there in struct devfreq data strcuture, and choose the correct path for
building the module.
Use tegra_wmark-specific devfreq_get_freq_range always to avoid kernel
version check and conftest check. Since devfreq_get_freq_range exists in
the devfreq-specific governor.h (e.g. drivers/devfreq/governor.h) file
instead of globabl linux kernel include header files
(e.g. include/linux/devfreq.h), conftest cannot be used to the existence
of devfreq_get_freq_range kernel function.
Bug 4884092
Change-Id: I5bde4c712f59f38de74c1d8d95135c9b25d621b1
Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3220896
(cherry picked from commit c580fd0d06)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3220970
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
The tegra_wmark governor can be used e.g. with DRM clients, such as VIC,
NVDEC, NVENC, and NVJPG. This governor tightly collaborates with the
actmon hardware used for monitoring the active time of the underlying
DRM clients.
Bug 3788919
Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: Ie4d4c2b173615aa239436fbb1545118435629d38
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2894529
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
Remove the config variables as there is no Kconfig to define
these configs:
CONFIG_DEVFREQ_GOV_WMARK_SIMPLE
CONFIG_DEVFREQ_GOV_WMARK_ACTIVE
Remove the handling of non-module build as devfreq is always
build as module.
Remove the wmark-related devfreq governors as we plan to keep
them under drivers/gpu/drm/tegra. They are tightly bound with
the actmon and drm drivers.
Bug 4074863
Signed-off-by: Johnny Liu <johnliu@nvidia.com>
Change-Id: Iba8f5da770d86ddcfb6315f72fd74fc9a781ab39
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/2893701
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
