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, 29 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c index dc474b809604..f676c236b657 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c @@ -50,6 +50,26 @@ */ /** + * amdgpu_ring_max_ibs - Return max IBs that fit in a single submission. + * + * @type: ring type for which to return the limit. + */ +unsigned int amdgpu_ring_max_ibs(enum amdgpu_ring_type type) +{ + switch (type) { + case AMDGPU_RING_TYPE_GFX: + /* Need to keep at least 192 on GFX7+ for old radv. */ + return 192; + case AMDGPU_RING_TYPE_COMPUTE: + return 125; + case AMDGPU_RING_TYPE_VCN_JPEG: + return 16; + default: + return 49; + } +} + +/** * amdgpu_ring_alloc - allocate space on the ring buffer * * @ring: amdgpu_ring structure holding ring information @@ -182,6 +202,7 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, int sched_hw_submission = amdgpu_sched_hw_submission; u32 *num_sched; u32 hw_ip; + unsigned int max_ibs_dw; /* Set the hw submission limit higher for KIQ because * it's used for a number of gfx/compute tasks by both @@ -290,6 +311,14 @@ int amdgpu_ring_init(struct amdgpu_device *adev, struct amdgpu_ring *ring, 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; + + 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->buf_mask = (ring->ring_size / 4) - 1; |