drm/radeon: fix S/R on VM systems (cayman/TN/SI)

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

Reviewed-by: Christian König <christian.koenig@amd.com>
Tested-by: Dmitry Cherkasov <Dmitrii.Cherkasov@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index d4c633e..e77c927 100644 (file)
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1771,6 +1771,7 @@ 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 (file)
--- 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);