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drm/radeon: replace vmram_mutex with mclk_lock v2

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It is a rw_semaphore now and only write locked
while changing the clock. Also the lock is renamed
to better reflect what it is protecting.

v2: Keep the ttm_vm_ops on IGPs

Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>
This commit is contained in:
Christian König
2012-05-11 14:57:18 +02:00
parent 220907d983
commit db7fce3983
5 changed files with 11 additions and 10 deletions
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4
drivers/gpu/drm/radeon/radeon_pm.c
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@@ -251,7 +251,7 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
return;
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->vram_mutex);
down_write(&rdev->pm.mclk_lock);
mutex_lock(&rdev->ring_lock);
/* gui idle int has issues on older chips it seems */
@@ -303,7 +303,7 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
mutex_unlock(&rdev->ring_lock);
mutex_unlock(&rdev->vram_mutex);
up_write(&rdev->pm.mclk_lock);
mutex_unlock(&rdev->ddev->struct_mutex);
}