Right now it's called right after enable, but after
reworking the dpm init order, it will get called later
to accomodate loading the smc early, but enabling
thermal interrupts and block powergating later after
the ring tests are complete.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
With CONFIG_ACPI=n the following build warning is seen:
drivers/gpu/drm/radeon/cypress_dpm.c:302:31: warning: unused variable 'eg_pi' [-Wunused-variable]
Protect eg_pi with CONFIG_ACPI.
Based on patch from: Fabio Estevam <fabio.estevam@freescale.com>
but doesn't mix allocation and code.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Calling force_performance_level() from set_power_state()
doesn't work on some asics because the current power
state pointer has not been properly updated at that point.
Move the calls to force_performance_level() out of the
asic specific set_power_state() functions and into
the main power state sequence.
Fixes dpm resume on SI.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
According to the internal teams, we never hit the limit for
mclk switching on these asics, so we can disable the check.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Need to check for engine and memory clock ss separately
and only enable dynamic ss if either of them are found.
This should fix systems which have a ss table, but do
not have entries for engine or memory. On those systems
we may enable dynamic spread spectrum without enabling
it on the engine or memory clocks which can lead to a
hang in some cases.
fixes some systems reported here:
https://bugs.freedesktop.org/show_bug.cgi?id=66963
v2: fix typo
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
On rv770 and newer, clock gating is not required
for thermal protection. The only requirement is that
the design utilizes a thermal sensor.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Check if we can switch the mclk during the vblank time otherwise
we may get artifacts on the screen when the mclk changes.
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>
Alex Deucher