This is a note to let you know that I've just added the patch titled
drm/amdgpu: move nbio ih_doorbell_range() into ih code for vega
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
drm-amdgpu-move-nbio-ih_doorbell_range-into-ih-code-for-vega.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dc1d85cb790f2091eea074cee24a704b2d6c4a06 Mon Sep 17 00:00:00 2001
From: Alex Deucher <alexander.deucher@xxxxxxx>
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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From: Alex Deucher <alexander.deucher@xxxxxxx>
commit dc1d85cb790f2091eea074cee24a704b2d6c4a06 upstream.
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@xxxxxxx>
Reviewed-by: Lijo Lazar <lijo.lazar@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
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(-)
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1429,9 +1429,6 @@ static void soc15_doorbell_range_init(st
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);
}
}
--- 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 amd
}
}
+ 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 */
--- 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 amd
}
}
+ 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 */
Patches currently in stable-queue which might be from alexander.deucher@xxxxxxx are
queue-5.15/drm-amdgpu-move-nbio-ih_doorbell_range-into-ih-code-for-vega.patch
queue-5.15/drm-amdgpu-move-nbio-sdma_doorbell_range-into-sdma-code-for-vega.patch
queue-5.15/drm-amdgpu-don-t-enable-ltr-if-not-supported.patch
