From dffabaafd6f1f8672d1bd016bea0cc94acbeb2ff Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@amd.com>
Date: Fri, 9 Sep 2022 11:47:20 -0400
Subject: drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega
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Alt-commit: db10109793bbd20c47d9cd324b27e1466dc236fb
Git-commit: dc1d85cb790f2091eea074cee24a704b2d6c4a06
Patch-mainline: v6.0-rc6
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225 jsc#PED-2849
This mirrors what we do for other asics and this way we are
sure the ih doorbell range is properly initialized.
There is a comment about the way doorbells on gfx9 work that
requires that they are initialized for other IPs before GFX
is initialized. In this case IH is initialized before GFX,
so there should be no issue.
This is a prerequisite for fixing the Unsupported Request error
reported through AER during driver load.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=216373
The error was unnoticed before and got visible because of the commit
referenced below. This doesn't fix anything in the commit below, rather
fixes the issue in amdgpu exposed by the commit. The reference is only
to associate this commit with below one so that both go together.
Fixes: 8795e182b02d ("PCI/portdrv: Don't disable AER reporting in get_port_device_capability()")
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/amd/amdgpu/soc15.c | 3 ---
drivers/gpu/drm/amd/amdgpu/vega10_ih.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/vega20_ih.c | 4 ++++
3 files changed, 8 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index fde6154f2009..7324e304288e 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1224,9 +1224,6 @@ static void soc15_doorbell_range_init(struct amdgpu_device *adev)
ring->use_doorbell, ring->doorbell_index,
adev->doorbell_index.sdma_doorbell_range);
}
-
- adev->nbio.funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
- adev->irq.ih.doorbell_index);
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
index 03b7066471f9..1e83db0c5438 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_ih.c
@@ -289,6 +289,10 @@ static int vega10_ih_irq_init(struct amdgpu_device *adev)
}
}
+ if (!amdgpu_sriov_vf(adev))
+ adev->nbio.funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
+ adev->irq.ih.doorbell_index);
+
pci_set_master(adev->pdev);
/* enable interrupts */
diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
index 2022ffbb8dba..59dfca093155 100644
--- a/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega20_ih.c
@@ -340,6 +340,10 @@ static int vega20_ih_irq_init(struct amdgpu_device *adev)
}
}
+ if (!amdgpu_sriov_vf(adev))
+ adev->nbio.funcs->ih_doorbell_range(adev, adev->irq.ih.use_doorbell,
+ adev->irq.ih.doorbell_index);
+
pci_set_master(adev->pdev);
/* enable interrupts */
--
2.38.1