Fixes failure on suspend due to rings not being marked
as not ready.
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
drivers/gpu/drm/amd/amdgpu/si_dma.c | 21 +++++++++++++++++++++
1 file changed, 21 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/si_dma.c
b/drivers/gpu/drm/amd/amdgpu/si_dma.c
index 873dd49..2aa6517 100644
--- a/drivers/gpu/drm/amd/amdgpu/si_dma.c
+++ b/drivers/gpu/drm/amd/amdgpu/si_dma.c
@@ -134,6 +134,23 @@ static void si_dma_ring_emit_fence(struct amdgpu_ring
*ring, u64 addr, u64 seq,
amdgpu_ring_write(ring, DMA_PACKET(DMA_PACKET_TRAP, 0, 0, 0, 0));
}
+static void si_dma_stop(struct amdgpu_device *adev)
+{
+ struct amdgpu_ring *ring;
+ u32 rb_cntl;
+ unsigned i;
+
+ for (i = 0; i < 2; i++) {
+ ring = &adev->sdma.instance[i].ring;
+ /* dma0 */
+ rb_cntl = RREG32(DMA_RB_CNTL + sdma_offsets[i]);
+ rb_cntl &= ~DMA_RB_ENABLE;
+ WREG32(DMA_RB_CNTL + sdma_offsets[i], rb_cntl);
+
+ ring->ready = false;
+ }
+}
+
static int si_dma_gfx_resume(struct amdgpu_device *adev)
{
struct amdgpu_ring *ring;
@@ -612,6 +629,10 @@ static int si_dma_hw_init(void *handle)
static int si_dma_hw_fini(void *handle)
{
+ struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+
+ si_dma_stop(adev);
+
return 0;
}
--
2.5.5
