drm/radeon: Clean up errors in kv_smc.c

Fix the following errors reported by checkpatch:

ERROR: spaces required around that '=' (ctx:VxW)

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

drm/radeon: drop use of drmP.h (2/2)

Drop use of drmP.h in remaining .c files.
To ease review a little the drmP.h removal was divided in two commits.

Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: "David (ChunMing) Zhou" <David1.Zhou@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20190608080241.4958-8-sam@ravnborg.org

drm/radeon: fix include notation and remove -Iinclude/drm flag

Include <drm/*.h> instead of relative path from include/drm, then
remove the -Iinclude/drm compiler flag.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-14-git-send-email-yamada.masahiro@socionext.com

drm/radeon/dpm: handle bapm on kb/kv

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.

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

drm/radeon/kms: add dpm support for KB/KV

This adds dpm support for KB/KV asics. This includes:
- dynamic engine clock scaling
- dynamic voltage scaling
- power containment
- shader power scaling

Set radeon.dpm=1 to enable.

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