[PATCH 1/2] drm/radeon: fix S/R on VM systems (cayman/TN/SI)

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From: Alex Deucher <alexander.deucher@xxxxxxx>

We weren't properly tearing down the VM sub-alloctor
on suspend leading to bogus VM PTs on resume.

Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=60439

Tested-by: Dmitry Cherkasov <Dmitrii.Cherkasov@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
---
 drivers/gpu/drm/radeon/ni.c |    1 +
 drivers/gpu/drm/radeon/si.c |    1 +
 2 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 3d81ca7..e6f3989 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1780,6 +1780,7 @@ int cayman_resume(struct radeon_device *rdev)
 int cayman_suspend(struct radeon_device *rdev)
 {
 	r600_audio_fini(rdev);
+	radeon_vm_manager_fini(rdev);
 	cayman_cp_enable(rdev, false);
 	cayman_dma_stop(rdev);
 	evergreen_irq_suspend(rdev);
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 9128120..bafbe32 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -4469,6 +4469,7 @@ int si_resume(struct radeon_device *rdev)
 
 int si_suspend(struct radeon_device *rdev)
 {
+	radeon_vm_manager_fini(rdev);
 	si_cp_enable(rdev, false);
 	cayman_dma_stop(rdev);
 	si_irq_suspend(rdev);
-- 
1.7.7.5

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