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This adds the enable_bapm callback for trinity.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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bapm is a power management feature for handling the
power budget between the CPU and GPU on APUs. This
patch adds support for enabling or disabling it.
For now disable it by default. Enabling it properly
requires quite a bit more work and will be addressed
in a separate patch.
This patch fixes hangs on boot on certain trinity
laptops when the system is on battery power.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Allows you to force the selected performance level via sysfs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This properly implemented dynamic state adjustment by
using a working copy of the requested and current
power states.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Use a dedicated copy of the current power state since
we may have to adjust it on the fly.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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v2: fix typo noticed by Dan Carpenter
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This adds dpm support for trinity asics. This includes:
- clockgating
- powergating
- dynamic engine clock scaling
- dynamic voltage scaling
set radeon.dpm=1 to enable it.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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