drm/amdgpu:implement ring_write_multiple

	ring->count_dw--;

}

static inline void amdgpu_ring_write_multiple(struct amdgpu_ring *ring, void *src, int count_dw)

{

	unsigned occupied, chunk1, chunk2;

	void *dst;

	if (ring->count_dw < count_dw) {

		DRM_ERROR("amdgpu: writing more dwords to the ring than expected!\n");

	} else {

		occupied = ring->wptr & ring->ptr_mask;

		dst = (void *)&ring->ring[occupied];

		chunk1 = ring->ptr_mask + 1 - occupied;

		chunk1 = (chunk1 >= count_dw) ? count_dw: chunk1;

		chunk2 = count_dw - chunk1;

		chunk1 <<= 2;

		chunk2 <<= 2;

		if (chunk1)

			memcpy(dst, src, chunk1);

		if (chunk2) {

			src += chunk1;

			dst = (void *)ring->ring;

			memcpy(dst, src, chunk2);

		}

		ring->wptr += count_dw;

		ring->wptr &= ring->ptr_mask;

		ring->count_dw -= count_dw;

	}

}

static inline struct amdgpu_sdma_instance *

amdgpu_get_sdma_instance(struct amdgpu_ring *ring)

{