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

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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>
This commit is contained in:
Alex Deucher
2013-04-12 16:42:42 -04:00
parent d22b7e406a
commit 69e0b57a91
16 changed files with 5344 additions and 28 deletions
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1
drivers/gpu/drm/radeon/radeon_pm.c
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@@ -1097,6 +1097,7 @@ int radeon_pm_init(struct radeon_device *rdev)
case CHIP_BARTS:
case CHIP_TURKS:
case CHIP_CAICOS:
case CHIP_CAYMAN:
case CHIP_ARUBA:
if (radeon_dpm == 1)
rdev->pm.pm_method = PM_METHOD_DPM;