drm/radeon/ni_dpm: Clean up errors in ni_dpm.c

Fix the following errors reported by checkpatch:

ERROR: open brace '{' following struct go on the same line

Signed-off-by: GuoHua Chen <chenguohua_716@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon/ni_dpm: Move 'ni_get_{pi, ps}()'s into shared header

Fixes the following W=1 kernel build warning(s):

drivers/gpu/drm/radeon/ni_dpm.c:727:23: warning: no previous prototype for ‘ni_get_pi’ [-Wmissing-prototypes]
727 | struct ni_power_info *ni_get_pi(struct radeon_device *rdev)
| ^~~~~~~~~
drivers/gpu/drm/radeon/ni_dpm.c:734:15: warning: no previous prototype for ‘ni_get_ps’ [-Wmissing-prototypes]
734 | struct ni_ps *ni_get_ps(struct radeon_ps *rps)
| ^~~~~~~~~

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: amd-gfx@lists.freedesktop.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drm/radeon/dpm: implement vblank_too_short callback for si

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>

drm/radeon/dpm: fix UVD clock setting on cayman

The rv770 version was using the wrong power state type.

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

drm/radeon/kms: add dpm support for SI (v7)

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

drm/radeon/dpm: add pre/post_set_power_state callback (cayman)

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>

drm/radeon/kms: add dpm support for cayman (v5)

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>