/**
* cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine
*
* @ring: amdgpu ring pointer
* @ib: IB object to schedule
*
* Schedule an IB in the DMA ring (CIK).
*/
static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
struct amdgpu_ib *ib)
{
u32 extra_bits = (ib->vm ? ib->vm->ids[ring->idx].id : 0) & 0xf;
u32 next_rptr = ring->wptr + 5;
while ((next_rptr & 7) != 4)
next_rptr++;
next_rptr += 4;
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_WRITE, SDMA_WRITE_SUB_OPCODE_LINEAR, 0));
amdgpu_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
amdgpu_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xffffffff);
amdgpu_ring_write(ring, 1); /* number of DWs to follow */
amdgpu_ring_write(ring, next_rptr);
/* IB packet must end on a 8 DW boundary */
cik_sdma_ring_insert_nop(ring, (12 - (ring->wptr & 7)) % 8);
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
amdgpu_ring_write(ring, ib->length_dw);
}
/**
* cik_sdma_ring_emit_ib - Schedule an IB on the DMA engine
*
* @ring: amdgpu ring pointer
* @ib: IB object to schedule
*
* Schedule an IB in the DMA ring (CIK).
*/
static void cik_sdma_ring_emit_ib(struct amdgpu_ring *ring,
struct amdgpu_ib *ib,
unsigned vm_id, bool ctx_switch)
{
u32 extra_bits = vm_id & 0xf;
/* IB packet must end on a 8 DW boundary */
cik_sdma_ring_insert_nop(ring, (12 - (lower_32_bits(ring->wptr) & 7)) % 8);
amdgpu_ring_write(ring, SDMA_PACKET(SDMA_OPCODE_INDIRECT_BUFFER, 0, extra_bits));
amdgpu_ring_write(ring, ib->gpu_addr & 0xffffffe0); /* base must be 32 byte aligned */
amdgpu_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xffffffff);
amdgpu_ring_write(ring, ib->length_dw);
}
