governor_pod_scaling_v2 will be provided as a kernel module in future
NVIDIA software deliverables for Linux platforms. As of this moment, the
function that returns the range of the device's scaling frequency hasn't
been exposed from Linux kernel for modules to call. A similar function
is implemented in the governor_pod_scaling_v2, but this function cannot
get the frequency constraints put through the PM QOS interface due to
the same reason, lack of kernel API function. An upstream kernel patch
has been proposed by the power management maintainer to provide the
function needed by governor_pod_scaling_v2, but it's not in any release
kernel yet. For now, PM QOS support is removed from
governor_pod_scaling_v2 and it will be added back when the upstream
kernel patch is available in kernel releases.
drivers_devfreq_governor_5_14.h is a copy of drivers/devfreq/governor.h
of Linux kernel 5.14. Having this copy is to avoid introducing the
dependency on Linux source for building the podgov as external module.
JIRA ID: LS-418
Signed-off-by: Peng Liu <pengliu@nvidia.com>
Change-Id: I0c70acf5679fed53f30bc3ba7c01ea571036cc5e
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2638232
Reviewed-by: svc_kernel_abi <svc_kernel_abi@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: Jonathan Hunter <jonathanh@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
GVS: Gerrit_Virtual_Submit
Introduce DEVFREQ_GOV_POD_SCALING_V2 for podgov
governor implementation on kernel-5.9 and later
version to address major changes in upstream
devfreq framework.
1. devfreq framework uses devm_pm_qos to store
"min/max frequency request from user-space",
which caused 'min_freq' & 'max_freq' field
in struct devfreq have been removed.
2. DEVFREQ_GOV_INTERVAL renamed as DEVFREQ_GOV_UPDATE_INTERVAL, and
devfreq_interval_update() renamed as devfreq_update_interval()
3. return type of debugfs_create_u32() changed to void
Bug 200639056
Change-Id: I673ae3ac6b55b26766253ae0f1aeba181e2e0b53
Signed-off-by: Aaron Tian <atian@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvidia/+/2400108
Reviewed-by: automaticguardword <automaticguardword@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Add include path pointing to core kernel repository in order for the
drivers to include "governor.h" and possibly other local header files
from there.
Bug 2246029
Change-Id: Ic4e31e51c6ef6fa8b2f9ef6ce19e4ae87f90a1f3
Signed-off-by: Timo Alho <talho@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1774215
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
The devfreq drivers are available in kernel/nvidia and it
is required to integrate in kernel/nvidia-oot.
Remove Makefile so avoid makefile conflict.
Bug 4038415
Change-Id: If0e81b66271d65c5a6d613d61be0e95d1af503e1
Signed-off-by: Laxman Dewangan <ldewangan@nvidia.com>
