diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c | 29 |
1 files changed, 18 insertions, 11 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index a6e28fe3f8d6..665c7b2b6436 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -324,20 +324,27 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, /* always set cond_exec_polling to CONTINUE */ *ring->cond_exe_cpu_addr = 1; - r = amdgpu_fence_driver_start_ring(ring, irq_src, irq_type); - if (r) { - dev_err(adev->dev, "failed initializing fences (%d).\n", r); - return r; - } + if (ring->funcs->type != AMDGPU_RING_TYPE_CPER) { + r = amdgpu_fence_driver_start_ring(ring, irq_src, irq_type); + if (r) { + dev_err(adev->dev, "failed initializing fences (%d).\n", r); + return r; + } - max_ibs_dw = ring->funcs->emit_frame_size + - amdgpu_ring_max_ibs(ring->funcs->type) * ring->funcs->emit_ib_size; - max_ibs_dw = (max_ibs_dw + ring->funcs->align_mask) & ~ring->funcs->align_mask; + max_ibs_dw = ring->funcs->emit_frame_size + + amdgpu_ring_max_ibs(ring->funcs->type) * ring->funcs->emit_ib_size; + max_ibs_dw = (max_ibs_dw + ring->funcs->align_mask) & ~ring->funcs->align_mask; - if (WARN_ON(max_ibs_dw > max_dw)) - max_dw = max_ibs_dw; + if (WARN_ON(max_ibs_dw > max_dw)) + max_dw = max_ibs_dw; - ring->ring_size = roundup_pow_of_two(max_dw * 4 * sched_hw_submission); + ring->ring_size = roundup_pow_of_two(max_dw * 4 * sched_hw_submission); + } else { + ring->ring_size = roundup_pow_of_two(max_dw * 4); + ring->count_dw = (ring->ring_size - 4) >> 2; + /* ring buffer is empty now */ + ring->wptr = *ring->rptr_cpu_addr = 0; + } ring->buf_mask = (ring->ring_size / 4) - 1; ring->ptr_mask = ring->funcs->support_64bit_ptrs ? |