[PATCH 1/2] drm/radeon: process the VCE interrupt on SI and Trinity

[Matheus Tagliari <mptagliari@gmail.com>]

radeon_vce_fence_emit() ends every VCE fence with VCE_CMD_TRAP, which
raises the VCE trap interrupt (IH src_id 167).  cik_irq_process()
handles it by calling radeon_fence_process() for the matching VCE ring,
but si_irq_process() and evergreen_irq_process(), which serve the other
ASICs with VCE1 (SI and Trinity/Richland), have no case for it.

Add the same handling.  The trap interrupt is not enabled on these
ASICs yet, so this does not change behaviour on its own; the next patch
enables it.

The SI part was tested together with the next patch.  The Trinity part
mirrors the CIK and SI code and has not been tested on Trinity/Richland
hardware.

Fixes: a918efab631a ("drm/radeon: add VCE 1.0 support v4")
Cc: stable@vger.kernel.org
Signed-off-by: Matheus Tagliari <mptagliari@gmail.com>
---
 drivers/gpu/drm/radeon/evergreen.c | 14 ++++++++++++++
 drivers/gpu/drm/radeon/si.c        | 14 ++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 3cbc6eedb..eb94916c8 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -4847,6 +4847,20 @@ int evergreen_irq_process(struct radeon_device *rdev)
 			drm_dbg(ddev, "IH: UVD int: 0x%08x\n", src_data);
 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
 			break;
+		case 167: /* VCE */
+			drm_dbg(ddev, "IH: VCE int: 0x%08x\n", src_data);
+			switch (src_data) {
+			case 0:
+				radeon_fence_process(rdev, TN_RING_TYPE_VCE1_INDEX);
+				break;
+			case 1:
+				radeon_fence_process(rdev, TN_RING_TYPE_VCE2_INDEX);
+				break;
+			default:
+				drm_err(ddev, "Unhandled interrupt: %d %d\n", src_id, src_data);
+				break;
+			}
+			break;
 		case 146:
 		case 147:
 			addr = RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR);
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 4681ff286..af3c4026d 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -6347,6 +6347,20 @@ int si_irq_process(struct radeon_device *rdev)
 			DRM_DEBUG("IH: UVD int: 0x%08x\n", src_data);
 			radeon_fence_process(rdev, R600_RING_TYPE_UVD_INDEX);
 			break;
+		case 167: /* VCE */
+			DRM_DEBUG("IH: VCE int: 0x%08x\n", src_data);
+			switch (src_data) {
+			case 0:
+				radeon_fence_process(rdev, TN_RING_TYPE_VCE1_INDEX);
+				break;
+			case 1:
+				radeon_fence_process(rdev, TN_RING_TYPE_VCE2_INDEX);
+				break;
+			default:
+				DRM_ERROR("Unhandled interrupt: %d %d\n", src_id, src_data);
+				break;
+			}
+			break;
 		case 146:
 		case 147:
 			addr = RREG32(VM_CONTEXT1_PROTECTION_FAULT_ADDR);
-- 
2.47.3