This patch adds a helper function to fetch the max clock
from the voltage clock dependecy tables. Clocks above that
level tend to be unstable and will require additional driver
tweaks in order to work properly.
This patch implemented the helper function to fetch the max clocks
from the dependency tables. The following patches implement the
per-asic clock filtering.
See bug:
https://bugs.freedesktop.org/show_bug.cgi?id=68235
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This adds dpm support for cayman asics. This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)
- power containment
- shader power scaling
Set radeon.dpm=1 to enable.
v2: fold in tdp fix
v3: fix indentation
v4: fix 64 bit div
v5: attempt to fix state enable
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Use a dedicated copy of the current power state since
we may have to adjust it on the fly.
v2: fix up redundant state sets
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
