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There still seem to be stability problems with other systems.
Bug:
https://bugs.freedesktop.org/show_bug.cgi?id=72921
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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bapm enabled the GPU and CPU to share TDP headroom. It was
disabled by default since some laptops hung when it was enabled
in conjunction with dpm. It seems to be stable on desktop
boards and fixes hangs on boot with dpm enabled on certain
boards, so enable it by default on desktop boards.
bug:
https://bugs.freedesktop.org/show_bug.cgi?id=72921
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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It's needed by by both the asic specific functions and the
extended table parser.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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For btc and newer, we may modify the power state depending
on the circumstances. Use the modified state rather than
the base state.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Noticed by Rashika Kheria and cherry-picked from
her larger patch set.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rashika Kheria <rashika.kheria@gmail.com>
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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>
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Need to wait to enable cg and pg until after
ring tests. Also make sure interrupts are enabled
before we enable thermal interrupts.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Adjust some of the TN dpm settings for stability. Enabling
these features causes hangs and other stability problems
on certain boards.
v2: leave uvd dpm enabled
Bug:
https://bugzilla.kernel.org/show_bug.cgi?id=63101
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
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Causes hangs on certain boards.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=70053
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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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>
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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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Newer versions of gcc seem to wander off into the
weeds when dealing with variable sizes arrays in
structs. Rather than indexing the arrays, use
pointer arithmetic.
See bugs:
https://bugs.freedesktop.org/show_bug.cgi?id=66932
https://bugs.freedesktop.org/show_bug.cgi?id=66972
https://bugs.freedesktop.org/show_bug.cgi?id=66945
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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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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Causes hangs for some people.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Add #include <linux/seq_file.h> to *_dpm.c files
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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This allows you to look at the current DPM state via
debugfs.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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We weren't properly catching errors in dpm_enable()
and dpm_set_power_state().
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
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Use the new asic callback instead.
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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Needed to properly handle dynamic state adjustment.
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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Alex Deucher
Mike Lothian