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drm/amdgpu: add IH ring to ih_get_wptr/ih_set_rptr v2

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Let's start to support multiple rings.

v2: decode IV is needed as well

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-09-17 16:13:49 +02:00
committed by Alex Deucher
parent 73c97fa442
commit 8bb9eb480d
8 changed files with 128 additions and 110 deletions
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6
drivers/gpu/drm/amd/amdgpu/amdgpu_ih.c
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@@ -137,7 +137,7 @@ int amdgpu_ih_process(struct amdgpu_device *adev, struct amdgpu_ih_ring *ih,
if (!ih->enabled || adev->shutdown)
return IRQ_NONE;
wptr = amdgpu_ih_get_wptr(adev);
wptr = amdgpu_ih_get_wptr(adev, ih);
restart_ih:
/* is somebody else already processing irqs? */
@@ -154,11 +154,11 @@ restart_ih:
ih->rptr &= ih->ptr_mask;
}
amdgpu_ih_set_rptr(adev);
amdgpu_ih_set_rptr(adev, ih);
atomic_set(&ih->lock, 0);
/* make sure wptr hasn't changed while processing */
wptr = amdgpu_ih_get_wptr(adev);
wptr = amdgpu_ih_get_wptr(adev, ih);
if (wptr != ih->rptr)
goto restart_ih;