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authorMatthew Garrett <mjg@redhat.com>2010-04-26 15:52:20 -0400
committerDave Airlie <airlied@redhat.com>2010-05-18 18:21:17 +1000
commit5876dd249e8e47c730cac090bf6edd88e5f04327 (patch)
treece5c99862483dca878bef6ac8c8280c380344f4e /drivers/gpu/drm/radeon/radeon_device.c
parent2aba631c008e7d82e3ec45dd32bec1ea63a963cf (diff)
radeon: Unmap vram pages when reclocking
Touching vram while the card is reclocking can lead to lockups. Unmap any pages that could be touched by the CPU and block any accesses to vram until the reclocking is complete. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_device.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 53a2c27dd8f..0372ec96020 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -599,6 +599,7 @@ int radeon_device_init(struct radeon_device *rdev,
spin_lock_init(&rdev->ih.lock);
mutex_init(&rdev->gem.mutex);
mutex_init(&rdev->pm.mutex);
+ mutex_init(&rdev->vram_mutex);
rwlock_init(&rdev->fence_drv.lock);
INIT_LIST_HEAD(&rdev->gem.objects);
init_waitqueue_head(&rdev->irq.vblank_queue);