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drm/amdgpu/iceland_ih: Enable soft IRQ handler ring

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We are going to use the soft IRQ handler ring on GMC v8
to process interrupts from VM faults.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Timur Kristóf 2025-11-26 14:29:45 +01:00 • committed by Alex Deucher
parent 45bef8999a
commit f4fa4c9e2d
1 changed files with 10 additions and 0 deletions
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10
drivers/gpu/drm/amd/amdgpu/iceland_ih.c
View file

@ -157,6 +157,9 @@ static int iceland_ih_irq_init(struct amdgpu_device *adev)
/* enable interrupts */
iceland_ih_enable_interrupts(adev);
if (adev->irq.ih_soft.ring_size)
adev->irq.ih_soft.enabled = true;
return 0;
}
@ -194,6 +197,9 @@ static u32 iceland_ih_get_wptr(struct amdgpu_device *adev,
wptr = le32_to_cpu(*ih->wptr_cpu);
if (ih == &adev->irq.ih_soft)
goto out;
if (!REG_GET_FIELD(wptr, IH_RB_WPTR, RB_OVERFLOW))
goto out;
@ -296,6 +302,10 @@ static int iceland_ih_sw_init(struct amdgpu_ip_block *ip_block)
if (r)
return r;
r = amdgpu_ih_ring_init(adev, &adev->irq.ih_soft, IH_SW_RING_SIZE, true);
if (r)
return r;
r = amdgpu_irq_init(adev);
return r;