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drm/radeon/kms: add dpm support for rv7xx (v4)

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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: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2013-06-26 00:11:19 -04:00
parent 4a6369e993
commit 66229b2005
18 changed files with 4876 additions and 13 deletions
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4
drivers/gpu/drm/radeon/radeon_pm.c
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@@ -1037,6 +1037,10 @@ int radeon_pm_init(struct radeon_device *rdev)
case CHIP_RV670:
case CHIP_RS780:
case CHIP_RS880:
case CHIP_RV770:
case CHIP_RV730:
case CHIP_RV710:
case CHIP_RV740:
if (radeon_dpm == 1)
rdev->pm.pm_method = PM_METHOD_DPM;
else