drm/nvc0: accelerate ttm buffer moves
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 74d0ef4..a7fae26 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -515,6 +515,58 @@
}
static int
+nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
+ struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
+{
+ struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
+ struct nouveau_bo *nvbo = nouveau_bo(bo);
+ u64 src_offset = old_mem->start << PAGE_SHIFT;
+ u64 dst_offset = new_mem->start << PAGE_SHIFT;
+ u32 page_count = new_mem->num_pages;
+ int ret;
+
+ if (!nvbo->no_vm) {
+ if (old_mem->mem_type == TTM_PL_VRAM)
+ src_offset = nvbo->vma.offset;
+ else
+ src_offset += dev_priv->gart_info.aper_base;
+
+ if (new_mem->mem_type == TTM_PL_VRAM)
+ dst_offset = nvbo->vma.offset;
+ else
+ dst_offset += dev_priv->gart_info.aper_base;
+ }
+
+ page_count = new_mem->num_pages;
+ while (page_count) {
+ int line_count = (page_count > 2047) ? 2047 : page_count;
+
+ ret = RING_SPACE(chan, 12);
+ if (ret)
+ return ret;
+
+ BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0238, 2);
+ OUT_RING (chan, upper_32_bits(dst_offset));
+ OUT_RING (chan, lower_32_bits(dst_offset));
+ BEGIN_NVC0(chan, 2, NvSubM2MF, 0x030c, 6);
+ OUT_RING (chan, upper_32_bits(src_offset));
+ OUT_RING (chan, lower_32_bits(src_offset));
+ OUT_RING (chan, PAGE_SIZE); /* src_pitch */
+ OUT_RING (chan, PAGE_SIZE); /* dst_pitch */
+ OUT_RING (chan, PAGE_SIZE); /* line_length */
+ OUT_RING (chan, line_count);
+ BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0300, 1);
+ OUT_RING (chan, 0x00100110);
+
+ page_count -= line_count;
+ src_offset += (PAGE_SIZE * line_count);
+ dst_offset += (PAGE_SIZE * line_count);
+ }
+
+ return 0;
+}
+
+static int
nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
{
@@ -690,7 +742,10 @@
if (dev_priv->card_type < NV_50)
ret = nv04_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
else
+ if (dev_priv->card_type < NV_C0)
ret = nv50_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
+ else
+ ret = nvc0_bo_move_m2mf(chan, bo, &bo->mem, new_mem);
if (ret == 0) {
ret = nouveau_bo_move_accel_cleanup(chan, nvbo, evict,
no_wait_reserve,
@@ -836,7 +891,7 @@
}
/* Software copy if the card isn't up and running yet. */
- if (!dev_priv->channel || dev_priv->card_type == NV_C0) {
+ if (!dev_priv->channel) {
ret = ttm_bo_move_memcpy(bo, evict, no_wait_reserve, no_wait_gpu, new_mem);
goto out;
}