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drm/amdgpu/gfx9.4.3: drop all BUG()s

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There's no need to crash the kernel for these cases.

Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher
2026-06-15 19:51:49 -04:00
parent a9d5c19636
commit 62a2d2303e
1 changed files with 9 additions and 4 deletions
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13
drivers/gpu/drm/amd/amdgpu/gfx_v9_4_3.c
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@@ -3040,13 +3040,17 @@ static u64 gfx_v9_4_3_ring_get_rptr_compute(struct amdgpu_ring *ring)
static u64 gfx_v9_4_3_ring_get_wptr_compute(struct amdgpu_ring *ring)
{
struct amdgpu_device *adev = ring->adev;
u64 wptr;
/* XXX check if swapping is necessary on BE */
if (ring->use_doorbell)
if (ring->use_doorbell) {
wptr = atomic64_read((atomic64_t *)&ring->adev->wb.wb[ring->wptr_offs]);
else
BUG();
} else {
dev_warn_once(adev->dev,
"%s requires doorbell!\n", __func__);
wptr = 0;
}
return wptr;
}
@@ -3059,7 +3063,8 @@ static void gfx_v9_4_3_ring_set_wptr_compute(struct amdgpu_ring *ring)
atomic64_set((atomic64_t *)&adev->wb.wb[ring->wptr_offs], ring->wptr);
WDOORBELL64(ring->doorbell_index, ring->wptr);
} else {
BUG(); /* only DOORBELL method supported on gfx9 now */
dev_warn_once(adev->dev,
"%s requires doorbell!\n", __func__);
}
}