[PATCH v2 05/11] drm/amdgpu/sdma6: register SDMA UMQ doorbell pool

[Jesse Zhang <Jesse.Zhang@amd.com>]

From: "Jesse.zhang" <Jesse.zhang@amd.com>

Call amdgpu_sdma_userq_doorbell_init() at sw_init time (gated on
userq_funcs[AMDGPU_HW_IP_DMA] being set so we only run on chips that
actually expose SDMA UMQs) and amdgpu_sdma_userq_doorbell_fini() at
sw_fini, so SDMA usermode queues get doorbells from the
firmware-managed NBIO routable window.

Signed-off-by: Jesse Zhang <Jesse.Zhang@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c
index de329b76a00c..02eeac3b2e11 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v6_0.c
@@ -1426,6 +1426,14 @@ static int sdma_v6_0_sw_init(struct amdgpu_ip_block *ip_block)
 	if (r)
 		return r;
 
+	/*
+	 * Init the SDMA usermode-queue doorbell pool inside the firmware-
+	 * managed NBIO SDMA decode window so user SDMA UMQs get doorbells
+	 * that are actually routable to the SDMA back-end.
+	 */
+	if (adev->userq_funcs[AMDGPU_HW_IP_DMA])
+		amdgpu_sdma_userq_doorbell_init(adev);
+
 	return r;
 }
 
@@ -1437,6 +1445,7 @@ static int sdma_v6_0_sw_fini(struct amdgpu_ip_block *ip_block)
 	for (i = 0; i < adev->sdma.num_instances; i++)
 		amdgpu_ring_fini(&adev->sdma.instance[i].ring);
 
+	amdgpu_sdma_userq_doorbell_fini(adev);
 	amdgpu_sdma_sysfs_reset_mask_fini(adev);
 	amdgpu_sdma_destroy_inst_ctx(adev, true);
 
-- 
2.49.0