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: NAlex Deucher <alexander.deucher@amd.com>

Check the driver state rather than the register as the
crtc registers may not be enabled yet.

Should fix:
https://bugzilla.kernel.org/show_bug.cgi?id=60510
https://bugs.freedesktop.org/show_bug.cgi?id=66651Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Allows you to limit the selected power levels via sysfs.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Add #include <linux/seq_file.h> to *_dpm.c files
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This allows you to look at the current DPM state via
debugfs.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

We weren't properly catching errors in dpm_enable()
and dpm_set_power_state().
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Add a way to look up the bootup mvdd.  Required for DPM on SI.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

SI uses a new atom table.  Required for DPM on SI.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Needed to properly handle dynamic state adjustment.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.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: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds dpm support for evergreen asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching (requires additional acpi support)

Set radeon.dpm=1 to enable.

v2: reduce stack usage, rename ulv struct
v3: fix thermal interrupt check notices by Jerome
v4: fix state enable
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>