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drm/radeon/kms: add dpm support for rv6xx (v3)

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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: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Alex Deucher
2013-04-12 14:04:10 -04:00
parent 9d67006e6e
commit 4a6369e993
16 changed files with 2477 additions and 3 deletions
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6
drivers/gpu/drm/radeon/radeon_pm.c
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@@ -1030,6 +1030,11 @@ int radeon_pm_init(struct radeon_device *rdev)
{
/* enable dpm on rv6xx+ */
switch (rdev->family) {
case CHIP_RV610:
case CHIP_RV630:
case CHIP_RV620:
case CHIP_RV635:
case CHIP_RV670:
case CHIP_RS780:
case CHIP_RS880:
if (radeon_dpm == 1)
@@ -1114,6 +1119,7 @@ static void radeon_pm_compute_clocks_old(struct radeon_device *rdev)
if (rdev->pm.num_power_states < 2)
return;
INIT_WORK(&rdev->pm.dpm.thermal.work, radeon_dpm_thermal_work_handler);
mutex_lock(&rdev->pm.mutex);
rdev->pm.active_crtcs = 0;