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drm:amdgpu: enable IH ring1 for IH v7.0

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We need IH ring1 for handling the pagefault
interrupts which over flow in default
ring for specific usecases.

Enable ring1 allows software to redirect
high interrupts to ring1 from default IH
ring.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sunil Khatri 2024-07-03 23:00:46 +05:30 committed by Alex Deucher
parent 33f23fc315
commit 906219ec94
1 changed files with 9 additions and 2 deletions
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11
drivers/gpu/drm/amd/amdgpu/ih_v7_0.c
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@ -546,8 +546,15 @@ static int ih_v7_0_sw_init(void *handle)
adev->irq.ih.use_doorbell = true;
adev->irq.ih.doorbell_index = adev->doorbell_index.ih << 1;
adev->irq.ih1.ring_size = 0;
adev->irq.ih2.ring_size = 0;
if (!(adev->flags & AMD_IS_APU)) {
r = amdgpu_ih_ring_init(adev, &adev->irq.ih1, IH_RING_SIZE,
use_bus_addr);
if (r)
return r;
adev->irq.ih1.use_doorbell = true;
adev->irq.ih1.doorbell_index = (adev->doorbell_index.ih + 1) << 1;
}
/* initialize ih control register offset */
ih_v7_0_init_register_offset(adev);