drm/ttm: restructure to allow driver to plug in alternate memory manager

Nouveau will need this on GeForce 8 and up to account for the GPU
reordering physical VRAM for some memory types.

Reviewed-by: Jerome Glisse <jglisse@redhat.com>
Acked-by: Thomas Hellström <thellstrom@vmware.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

8 files changed, 20 insertions, 19 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index f685f392c226..80353e2b8409 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -381,6 +381,7 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 		man->default_caching = TTM_PL_FLAG_CACHED;
 		break;
 	case TTM_PL_VRAM:
+		man->func = &ttm_bo_manager_func;
 		man->flags = TTM_MEMTYPE_FLAG_FIXED |
 			     TTM_MEMTYPE_FLAG_MAPPABLE;
 		man->available_caching = TTM_PL_FLAG_UNCACHED |
@@ -392,6 +393,7 @@ nouveau_bo_init_mem_type(struct ttm_bo_device *bdev, uint32_t type,
 			man->gpu_offset = 0;
 		break;
 	case TTM_PL_TT:
+		man->func = &ttm_bo_manager_func;
 		switch (dev_priv->gart_info.type) {
 		case NOUVEAU_GART_AGP:
 			man->flags = TTM_MEMTYPE_FLAG_MAPPABLE;
@@ -494,8 +496,8 @@ nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 	u64 src_offset, dst_offset;
 	int ret;
 
-	src_offset = old_mem->mm_node->start << PAGE_SHIFT;
-	dst_offset = new_mem->mm_node->start << PAGE_SHIFT;
+	src_offset = old_mem->start << PAGE_SHIFT;
+	dst_offset = new_mem->start << PAGE_SHIFT;
 	if (!nvbo->no_vm) {
 		if (old_mem->mem_type == TTM_PL_VRAM)
 			src_offset += dev_priv->vm_vram_base;
@@ -597,8 +599,8 @@ static int
 nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
 		  struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
 {
-	u32 src_offset = old_mem->mm_node->start << PAGE_SHIFT;
-	u32 dst_offset = new_mem->mm_node->start << PAGE_SHIFT;
+	u32 src_offset = old_mem->start << PAGE_SHIFT;
+	u32 dst_offset = new_mem->start << PAGE_SHIFT;
 	u32 page_count = new_mem->num_pages;
 	int ret;
 
@@ -746,7 +748,7 @@ nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
 		return 0;
 	}
 
-	offset = new_mem->mm_node->start << PAGE_SHIFT;
+	offset = new_mem->start << PAGE_SHIFT;
 
 	if (dev_priv->card_type == NV_50) {
 		ret = nv50_mem_vm_bind_linear(dev,
@@ -860,14 +862,14 @@ nouveau_ttm_io_mem_reserve(struct ttm_bo_device *bdev, struct ttm_mem_reg *mem)
 	case TTM_PL_TT:
 #if __OS_HAS_AGP
 		if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
-			mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+			mem->bus.offset = mem->start << PAGE_SHIFT;
 			mem->bus.base = dev_priv->gart_info.aper_base;
 			mem->bus.is_iomem = true;
 		}
 #endif
 		break;
 	case TTM_PL_VRAM:
-		mem->bus.offset = mem->mm_node->start << PAGE_SHIFT;
+		mem->bus.offset = mem->start << PAGE_SHIFT;
 		mem->bus.base = pci_resource_start(dev->pdev, 1);
 		mem->bus.is_iomem = true;
 		break;
@@ -897,7 +899,7 @@ nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
 	}
 
 	/* make sure bo is in mappable vram */
-	if (bo->mem.mm_node->start + bo->mem.num_pages < dev_priv->fb_mappable_pages)
+	if (bo->mem.start + bo->mem.num_pages < dev_priv->fb_mappable_pages)
 		return 0;
 
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
index 5eb4c966273f..373950e34814 100644
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ b/drivers/gpu/drm/nouveau/nouveau_channel.c
@@ -48,14 +48,14 @@ nouveau_channel_pushbuf_ctxdma_init(struct nouveau_channel *chan)
 						  dev_priv->gart_info.aper_size,
 						  NV_DMA_ACCESS_RO, &pushbuf,
 						  NULL);
-		chan->pushbuf_base = pb->bo.mem.mm_node->start << PAGE_SHIFT;
+		chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
 	} else
 	if (dev_priv->card_type != NV_04) {
 		ret = nouveau_gpuobj_dma_new(chan, NV_CLASS_DMA_IN_MEMORY, 0,
 					     dev_priv->fb_available_size,
 					     NV_DMA_ACCESS_RO,
 					     NV_DMA_TARGET_VIDMEM, &pushbuf);
-		chan->pushbuf_base = pb->bo.mem.mm_node->start << PAGE_SHIFT;
+		chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
 	} else {
 		/* NV04 cmdbuf hack, from original ddx.. not sure of it's
 		 * exact reason for existing :)  PCI access to cmdbuf in
@@ -67,7 +67,7 @@ nouveau_channel_pushbuf_ctxdma_init(struct nouveau_channel *chan)
 					     dev_priv->fb_available_size,
 					     NV_DMA_ACCESS_RO,
 					     NV_DMA_TARGET_PCI, &pushbuf);
-		chan->pushbuf_base = pb->bo.mem.mm_node->start << PAGE_SHIFT;
+		chan->pushbuf_base = pb->bo.mem.start << PAGE_SHIFT;
 	}
 
 	nouveau_gpuobj_ref(pushbuf, &chan->pushbuf);
diff --git a/drivers/gpu/drm/nouveau/nouveau_notifier.c b/drivers/gpu/drm/nouveau/nouveau_notifier.c
index 22b86189b7bb..2cc59f8c658b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_notifier.c
+++ b/drivers/gpu/drm/nouveau/nouveau_notifier.c
@@ -113,7 +113,7 @@ nouveau_notifier_alloc(struct nouveau_channel *chan, uint32_t handle,
 		return -ENOMEM;
 	}
 
-	offset = chan->notifier_bo->bo.mem.mm_node->start << PAGE_SHIFT;
+	offset = chan->notifier_bo->bo.mem.start << PAGE_SHIFT;
 	if (chan->notifier_bo->bo.mem.mem_type == TTM_PL_VRAM) {
 		target = NV_DMA_TARGET_VIDMEM;
 	} else
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index 7f028fee7a58..288bacac7e5a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -95,9 +95,9 @@ nouveau_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 	struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
 	unsigned i, j, pte;
 
-	NV_DEBUG(dev, "pg=0x%lx\n", mem->mm_node->start);
+	NV_DEBUG(dev, "pg=0x%lx\n", mem->start);
 
-	pte = nouveau_sgdma_pte(nvbe->dev, mem->mm_node->start << PAGE_SHIFT);
+	pte = nouveau_sgdma_pte(nvbe->dev, mem->start << PAGE_SHIFT);
 	nvbe->pte_start = pte;
 	for (i = 0; i < nvbe->nr_pages; i++) {
 		dma_addr_t dma_offset = nvbe->pages[i];
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 1686f8291b6d..3f2fb4ec63ab 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -104,8 +104,7 @@ nv50_crtc_blank(struct nouveau_crtc *nv_crtc, bool blanked)
 		OUT_RING(evo, nv_crtc->lut.depth == 8 ?
 				NV50_EVO_CRTC_CLUT_MODE_OFF :
 				NV50_EVO_CRTC_CLUT_MODE_ON);
-		OUT_RING(evo, (nv_crtc->lut.nvbo->bo.mem.mm_node->start <<
-				 PAGE_SHIFT) >> 8);
+		OUT_RING(evo, (nv_crtc->lut.nvbo->bo.mem.start << PAGE_SHIFT) >> 8);
 		if (dev_priv->chipset != 0x50) {
 			BEGIN_RING(evo, 0, NV84_EVO_CRTC(index, CLUT_DMA), 1);
 			OUT_RING(evo, NvEvoVRAM);
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 11d366ad4036..55c9663ef2bf 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -345,7 +345,7 @@ nv50_display_init(struct drm_device *dev)
 
 	/* initialise fifo */
 	nv_wr32(dev, NV50_PDISPLAY_CHANNEL_DMA_CB(0),
-		((evo->pushbuf_bo->bo.mem.mm_node->start << PAGE_SHIFT) >> 8) |
+		((evo->pushbuf_bo->bo.mem.start << PAGE_SHIFT) >> 8) |
 		NV50_PDISPLAY_CHANNEL_DMA_CB_LOCATION_VRAM |
 		NV50_PDISPLAY_CHANNEL_DMA_CB_VALID);
 	nv_wr32(dev, NV50_PDISPLAY_CHANNEL_UNK2(0), 0x00010000);
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index f5800f21a9dc..a53fc974332b 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -347,7 +347,7 @@ nv50_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj,
 		return ret;
 	}
 
-	gpuobj->vinst = gpuobj->im_backing->bo.mem.mm_node->start << PAGE_SHIFT;
+	gpuobj->vinst = gpuobj->im_backing->bo.mem.start << PAGE_SHIFT;
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/nouveau/nvc0_instmem.c b/drivers/gpu/drm/nouveau/nvc0_instmem.c
index 6a41d644e044..13a0f78a9088 100644
--- a/drivers/gpu/drm/nouveau/nvc0_instmem.c
+++ b/drivers/gpu/drm/nouveau/nvc0_instmem.c
@@ -50,7 +50,7 @@ nvc0_instmem_populate(struct drm_device *dev, struct nouveau_gpuobj *gpuobj,
 		return ret;
 	}
 
-	gpuobj->vinst = gpuobj->im_backing->bo.mem.mm_node->start << PAGE_SHIFT;
+	gpuobj->vinst = gpuobj->im_backing->bo.mem.start << PAGE_SHIFT;
 	return 0;
 }