drm/nvc0/fifo: stick user area into a gpuobj rather than a bo

Contents will now be preserved across a suspend, unlike a pinned bo

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nvc0_fifo.c b/drivers/gpu/drm/nouveau/nvc0_fifo.c
index be4e483..fb4f594 100644 (file)
--- a/drivers/gpu/drm/nouveau/nvc0_fifo.c
+++ b/drivers/gpu/drm/nouveau/nvc0_fifo.c
@@ -37,7 +37,7 @@ struct nvc0_fifo_priv {
 };
 
 struct nvc0_fifo_chan {
-       struct nouveau_bo *user;
+       struct nouveau_gpuobj *user;
        struct nouveau_gpuobj *ramfc;
 };
 
@@ -106,7 +106,7 @@ nvc0_fifo_create_context(struct nouveau_channel *chan)
        struct nouveau_fifo_engine *pfifo = &dev_priv->engine.fifo;
        struct nvc0_fifo_priv *priv = pfifo->priv;
        struct nvc0_fifo_chan *fifoch;
-       u64 ib_virt, user_vinst;
+       u64 ib_virt = chan->pushbuf_base + chan->dma.ib_base * 4;
        int ret;
 
        chan->fifo_priv = kzalloc(sizeof(*fifoch), GFP_KERNEL);
@@ -115,28 +115,13 @@ nvc0_fifo_create_context(struct nouveau_channel *chan)
        fifoch = chan->fifo_priv;
 
        /* allocate vram for control regs, map into polling area */
-       ret = nouveau_bo_new(dev, NULL, 0x1000, 0, TTM_PL_FLAG_VRAM,
-                            0, 0, &fifoch->user);
+       ret = nouveau_gpuobj_new(dev, NULL, 0x1000, 0x1000,
+                                NVOBJ_FLAG_ZERO_ALLOC, &fifoch->user);
        if (ret)
                goto error;
 
-       ret = nouveau_bo_pin(fifoch->user, TTM_PL_FLAG_VRAM);
-       if (ret) {
-               nouveau_bo_ref(NULL, &fifoch->user);
-               goto error;
-       }
-
-       user_vinst = fifoch->user->bo.mem.start << PAGE_SHIFT;
-
-       ret = nouveau_bo_map(fifoch->user);
-       if (ret) {
-               nouveau_bo_unpin(fifoch->user);
-               nouveau_bo_ref(NULL, &fifoch->user);
-               goto error;
-       }
-
        nouveau_vm_map_at(&priv->user_vma, chan->id * 0x1000,
-                         fifoch->user->bo.mem.mm_node);
+                         *(struct nouveau_mem **)fifoch->user->node);
 
        chan->user = ioremap_wc(pci_resource_start(dev->pdev, 1) +
                                priv->user_vma.offset + (chan->id * 0x1000),
@@ -146,20 +131,6 @@ nvc0_fifo_create_context(struct nouveau_channel *chan)
                goto error;
        }
 
-       ib_virt = chan->pushbuf_base + chan->dma.ib_base * 4;
-
-       /* zero channel regs */
-       nouveau_bo_wr32(fifoch->user, 0x0040/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0044/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0048/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x004c/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0050/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0058/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x005c/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0060/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x0088/4, 0);
-       nouveau_bo_wr32(fifoch->user, 0x008c/4, 0);
-
        /* ramfc */
        ret = nouveau_gpuobj_new_fake(dev, chan->ramin->pinst,
                                      chan->ramin->vinst, 0x100,
@@ -167,8 +138,8 @@ nvc0_fifo_create_context(struct nouveau_channel *chan)
        if (ret)
                goto error;
 
-       nv_wo32(fifoch->ramfc, 0x08, lower_32_bits(user_vinst));
-       nv_wo32(fifoch->ramfc, 0x0c, upper_32_bits(user_vinst));
+       nv_wo32(fifoch->ramfc, 0x08, lower_32_bits(fifoch->user->vinst));
+       nv_wo32(fifoch->ramfc, 0x0c, upper_32_bits(fifoch->user->vinst));
        nv_wo32(fifoch->ramfc, 0x10, 0x0000face);
        nv_wo32(fifoch->ramfc, 0x30, 0xfffff902);
        nv_wo32(fifoch->ramfc, 0x48, lower_32_bits(ib_virt));
@@ -223,11 +194,7 @@ nvc0_fifo_destroy_context(struct nouveau_channel *chan)
                return;
 
        nouveau_gpuobj_ref(NULL, &fifoch->ramfc);
-       if (fifoch->user) {
-               nouveau_bo_unmap(fifoch->user);
-               nouveau_bo_unpin(fifoch->user);
-               nouveau_bo_ref(NULL, &fifoch->user);
-       }
+       nouveau_gpuobj_ref(NULL, &fifoch->user);
        kfree(fifoch);
 }