Required for checking vblank time for mclk changes.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds dpm support for SI asics.  This includes:
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2/gen3 switching
- power containment
- shader power scaling

Set radeon.dpm=1 to enable.

v2: enable hainan support, rebase
v3: guard acpi stuff
v4: fix 64 bit math
v5: fix 64 bit div harder
v6: fix thermal interrupt check noticed by Jerome
v7: attempt fix state enable
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

Add a helper function to determine the preferred
pcie gen based on the card, system, and circumstance.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

Forgot to free some structs when allocation fails for some
tables.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

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

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

Required for dpm on SI.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

For r6xx-evergreen, they are no-ops as they don't support
any dynamic state adjustment.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This data will be needed for dpm on newer asics.

v2: fix typo in rebase
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

This adds dpm support for rv6xx 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: remove duplicate line
v3: fix thermal interrupt check noticed by Jerome
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
Reviewed-by: NChristian König <christian.koenig@amd.com>

These are shared by rs780/rs880, rv6xx, and newer chips.
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>