From 9a999e57af4a3f5a863c21154dd3b9618888c1f7 Mon Sep 17 00:00:00 2001
From: Ben Skeggs <skeggsb@gmail.com>
Date: Mon, 5 Nov 2007 00:01:38 +1100
Subject: nouveau: crappy ttm mm init, disabled for now.

---
 shared-core/nouveau_mem.c | 104 ++++++++++++++++++++++++++++++++++++++--------
 1 file changed, 87 insertions(+), 17 deletions(-)

(limited to 'shared-core/nouveau_mem.c')

diff --git a/shared-core/nouveau_mem.c b/shared-core/nouveau_mem.c
index 0e73c149..eb97a1c7 100644
--- a/shared-core/nouveau_mem.c
+++ b/shared-core/nouveau_mem.c
@@ -301,13 +301,11 @@ uint64_t nouveau_mem_fb_amount(struct drm_device *dev)
 }
 
 static int
-nouveau_mem_init_agp(struct drm_device *dev)
+nouveau_mem_init_agp(struct drm_device *dev, int ttm)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct drm_agp_info info;
 	struct drm_agp_mode mode;
-	struct drm_agp_buffer agp_req;
-	struct drm_agp_binding bind_req;
 	int ret;
 
 	ret = drm_agp_acquire(dev);
@@ -330,20 +328,25 @@ nouveau_mem_init_agp(struct drm_device *dev)
 		return ret;
 	}
 
-	agp_req.size = info.aperture_size;
-	agp_req.type = 0;
-	ret = drm_agp_alloc(dev, &agp_req);
-	if (ret) {
-		DRM_ERROR("Unable to alloc AGP: %d\n", ret);
-		return ret;
-	}
+	if (!ttm) {
+		struct drm_agp_buffer agp_req;
+		struct drm_agp_binding bind_req;
 
-	bind_req.handle = agp_req.handle;
-	bind_req.offset = 0;
-	ret = drm_agp_bind(dev, &bind_req);
-	if (ret) {
-		DRM_ERROR("Unable to bind AGP: %d\n", ret);
-		return ret;
+		agp_req.size = info.aperture_size;
+		agp_req.type = 0;
+		ret = drm_agp_alloc(dev, &agp_req);
+		if (ret) {
+			DRM_ERROR("Unable to alloc AGP: %d\n", ret);
+				return ret;
+		}
+
+		bind_req.handle = agp_req.handle;
+		bind_req.offset = 0;
+		ret = drm_agp_bind(dev, &bind_req);
+		if (ret) {
+			DRM_ERROR("Unable to bind AGP: %d\n", ret);
+			return ret;
+		}
 	}
 
 	dev_priv->gart_info.type	= NOUVEAU_GART_AGP;
@@ -352,6 +355,73 @@ nouveau_mem_init_agp(struct drm_device *dev)
 	return 0;
 }
 
+#define HACK_OLD_MM
+int
+nouveau_mem_init_ttm(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	uint32_t vram_size, bar1_size;
+	int ret;
+
+	dev_priv->agp_heap = dev_priv->pci_heap = dev_priv->fb_heap = NULL;
+	dev_priv->fb_phys = drm_get_resource_start(dev,1);
+	dev_priv->gart_info.type = NOUVEAU_GART_NONE;
+
+	drm_bo_driver_init(dev);
+
+	/* non-mappable vram */
+	dev_priv->fb_available_size = nouveau_mem_fb_amount(dev);
+	dev_priv->fb_available_size -= dev_priv->ramin_rsvd_vram;
+	vram_size = dev_priv->fb_available_size >> PAGE_SHIFT;
+	bar1_size = drm_get_resource_len(dev, 1) >> PAGE_SHIFT;
+	if (bar1_size < vram_size) {
+		if ((ret = drm_bo_init_mm(dev, DRM_BO_MEM_PRIV0,
+					  bar1_size, vram_size - bar1_size))) {
+			DRM_ERROR("Failed PRIV0 mm init: %d\n", ret);
+			return ret;
+		}
+		vram_size = bar1_size;
+	}
+
+	/* mappable vram */
+#ifdef HACK_OLD_MM
+	vram_size /= 4;
+#endif
+	if ((ret = drm_bo_init_mm(dev, DRM_BO_MEM_VRAM, 0, vram_size))) {
+		DRM_ERROR("Failed VRAM mm init: %d\n", ret);
+		return ret;
+	}
+
+	/* GART */
+#ifndef __powerpc__
+	if (drm_device_is_agp(dev) && dev->agp) {
+		if ((ret = nouveau_mem_init_agp(dev, 1)))
+			DRM_ERROR("Error initialising AGP: %d\n", ret);
+	}
+#endif
+
+	if (dev_priv->gart_info.type == NOUVEAU_GART_NONE) {
+		if ((ret = nouveau_sgdma_init(dev)))
+			DRM_ERROR("Error initialising PCI SGDMA: %d\n", ret);
+	}
+
+	if ((ret = drm_bo_init_mm(dev, DRM_BO_MEM_TT, 0,
+				  dev_priv->gart_info.aper_size >>
+				  PAGE_SHIFT))) {
+		DRM_ERROR("Failed TT mm init: %d\n", ret);
+		return ret;
+	}
+
+#ifdef HACK_OLD_MM
+	vram_size <<= PAGE_SHIFT;
+	DRM_INFO("Old MM using %dKiB VRAM\n", (vram_size * 3) >> 10);
+	if (nouveau_mem_init_heap(&dev_priv->fb_heap, vram_size, vram_size * 3))
+		return -ENOMEM;
+#endif
+
+	return 0;
+}
+
 int nouveau_mem_init(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -395,7 +465,7 @@ int nouveau_mem_init(struct drm_device *dev)
 #ifndef __powerpc__
 	/* Init AGP / NV50 PCIEGART */
 	if (drm_device_is_agp(dev) && dev->agp) {
-		if ((ret = nouveau_mem_init_agp(dev)))
+		if ((ret = nouveau_mem_init_agp(dev, 0)))
 			DRM_ERROR("Error initialising AGP: %d\n", ret);
 	}
 #endif
-- 
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