Merge branch 'master' of /home/davem/src/GIT/linux-2.6/

1 files changed, 181 insertions, 81 deletions

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 320a14bceb99..e342a418d434 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -33,10 +33,13 @@
 #include "nouveau_drv.h"
 #include "nouveau_dma.h"
 
+#include <linux/log2.h>
+
 static void
 nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
 {
 	struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
+	struct drm_device *dev = dev_priv->dev;
 	struct nouveau_bo *nvbo = nouveau_bo(bo);
 
 	ttm_bo_kunmap(&nvbo->kmap);
@@ -44,12 +47,87 @@ nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
 	if (unlikely(nvbo->gem))
 		DRM_ERROR("bo %p still attached to GEM object\n", bo);
 
+	if (nvbo->tile)
+		nv10_mem_expire_tiling(dev, nvbo->tile, NULL);
+
 	spin_lock(&dev_priv->ttm.bo_list_lock);
 	list_del(&nvbo->head);
 	spin_unlock(&dev_priv->ttm.bo_list_lock);
 	kfree(nvbo);
 }
 
+static void
+nouveau_bo_fixup_align(struct drm_device *dev,
+		       uint32_t tile_mode, uint32_t tile_flags,
+		       int *align, int *size)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	/*
+	 * Some of the tile_flags have a periodic structure of N*4096 bytes,
+	 * align to to that as well as the page size. Overallocate memory to
+	 * avoid corruption of other buffer objects.
+	 */
+	if (dev_priv->card_type == NV_50) {
+		uint32_t block_size = nouveau_mem_fb_amount(dev) >> 15;
+		int i;
+
+		switch (tile_flags) {
+		case 0x1800:
+		case 0x2800:
+		case 0x4800:
+		case 0x7a00:
+			*size = roundup(*size, block_size);
+			if (is_power_of_2(block_size)) {
+				*size += 3 * block_size;
+				for (i = 1; i < 10; i++) {
+					*align = 12 * i * block_size;
+					if (!(*align % 65536))
+						break;
+				}
+			} else {
+				*size += 6 * block_size;
+				for (i = 1; i < 10; i++) {
+					*align = 8 * i * block_size;
+					if (!(*align % 65536))
+						break;
+				}
+			}
+			break;
+		default:
+			break;
+		}
+
+	} else {
+		if (tile_mode) {
+			if (dev_priv->chipset >= 0x40) {
+				*align = 65536;
+				*size = roundup(*size, 64 * tile_mode);
+
+			} else if (dev_priv->chipset >= 0x30) {
+				*align = 32768;
+				*size = roundup(*size, 64 * tile_mode);
+
+			} else if (dev_priv->chipset >= 0x20) {
+				*align = 16384;
+				*size = roundup(*size, 64 * tile_mode);
+
+			} else if (dev_priv->chipset >= 0x10) {
+				*align = 16384;
+				*size = roundup(*size, 32 * tile_mode);
+			}
+		}
+	}
+
+	/* ALIGN works only on powers of two. */
+	*size = roundup(*size, PAGE_SIZE);
+
+	if (dev_priv->card_type == NV_50) {
+		*size = roundup(*size, 65536);
+		*align = max(65536, *align);
+	}
+}
+
 int
 nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
 	       int size, int align, uint32_t flags, uint32_t tile_mode,
@@ -58,7 +136,7 @@ nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_bo *nvbo;
-	int ret, n = 0;
+	int ret = 0;
 
 	nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
 	if (!nvbo)
@@ -70,59 +148,14 @@ nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
 	nvbo->tile_mode = tile_mode;
 	nvbo->tile_flags = tile_flags;
 
-	/*
-	 * Some of the tile_flags have a periodic structure of N*4096 bytes,
-	 * align to to that as well as the page size. Overallocate memory to
-	 * avoid corruption of other buffer objects.
-	 */
-	switch (tile_flags) {
-	case 0x1800:
-	case 0x2800:
-	case 0x4800:
-	case 0x7a00:
-		if (dev_priv->chipset >= 0xA0) {
-			/* This is based on high end cards with 448 bits
-			 * memory bus, could be different elsewhere.*/
-			size += 6 * 28672;
-			/* 8 * 28672 is the actual alignment requirement,
-			 * but we must also align to page size. */
-			align = 2 * 8 * 28672;
-		} else if (dev_priv->chipset >= 0x90) {
-			size += 3 * 16384;
-			align = 12 * 16834;
-		} else {
-			size += 3 * 8192;
-			/* 12 * 8192 is the actual alignment requirement,
-			 * but we must also align to page size. */
-			align = 2 * 12 * 8192;
-		}
-		break;
-	default:
-		break;
-	}
-
+	nouveau_bo_fixup_align(dev, tile_mode, tile_flags, &align, &size);
 	align >>= PAGE_SHIFT;
 
-	size = (size + (PAGE_SIZE - 1)) & ~(PAGE_SIZE - 1);
-	if (dev_priv->card_type == NV_50) {
-		size = (size + 65535) & ~65535;
-		if (align < (65536 / PAGE_SIZE))
-			align = (65536 / PAGE_SIZE);
-	}
-
-	if (flags & TTM_PL_FLAG_VRAM)
-		nvbo->placements[n++] = TTM_PL_FLAG_VRAM | TTM_PL_MASK_CACHING;
-	if (flags & TTM_PL_FLAG_TT)
-		nvbo->placements[n++] = TTM_PL_FLAG_TT | TTM_PL_MASK_CACHING;
 	nvbo->placement.fpfn = 0;
 	nvbo->placement.lpfn = mappable ? dev_priv->fb_mappable_pages : 0;
-	nvbo->placement.placement = nvbo->placements;
-	nvbo->placement.busy_placement = nvbo->placements;
-	nvbo->placement.num_placement = n;
-	nvbo->placement.num_busy_placement = n;
+	nouveau_bo_placement_set(nvbo, flags);
 
 	nvbo->channel = chan;
-	nouveau_bo_placement_set(nvbo, flags);
 	ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size,
 			  ttm_bo_type_device, &nvbo->placement, align, 0,
 			  false, NULL, size, nouveau_bo_del_ttm);
@@ -154,6 +187,11 @@ nouveau_bo_placement_set(struct nouveau_bo *nvbo, uint32_t memtype)
 	nvbo->placement.busy_placement = nvbo->placements;
 	nvbo->placement.num_placement = n;
 	nvbo->placement.num_busy_placement = n;
+
+	if (nvbo->pin_refcnt) {
+		while (n--)
+			nvbo->placements[n] |= TTM_PL_FLAG_NO_EVICT;
+	}
 }
 
 int
@@ -311,8 +349,10 @@ nouveau_bo_create_ttm_backend_entry(struct ttm_bo_device *bdev)
 	struct drm_device *dev = dev_priv->dev;
 
 	switch (dev_priv->gart_info.type) {
+#if __OS_HAS_AGP
 	case NOUVEAU_GART_AGP:
 		return ttm_agp_backend_init(bdev, dev->agp->bridge);
+#endif
 	case NOUVEAU_GART_SGDMA:
 		return nouveau_sgdma_init_ttm(dev);
 	default:
@@ -398,16 +438,23 @@ nouveau_bo_evict_flags(struct ttm_buffer_object *bo, struct ttm_placement *pl)
 	struct nouveau_bo *nvbo = nouveau_bo(bo);
 
 	switch (bo->mem.mem_type) {
+	case TTM_PL_VRAM:
+		nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_TT |
+					 TTM_PL_FLAG_SYSTEM);
+		break;
 	default:
 		nouveau_bo_placement_set(nvbo, TTM_PL_FLAG_SYSTEM);
 		break;
 	}
+
+	*pl = nvbo->placement;
 }
 
 
 /* GPU-assisted copy using NV_MEMORY_TO_MEMORY_FORMAT, can access
  * TTM_PL_{VRAM,TT} directly.
  */
+
 static int
 nouveau_bo_move_accel_cleanup(struct nouveau_channel *chan,
 			      struct nouveau_bo *nvbo, bool evict, bool no_wait,
@@ -442,22 +489,20 @@ nouveau_bo_mem_ctxdma(struct nouveau_bo *nvbo, struct nouveau_channel *chan,
 }
 
 static int
-nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, int no_wait,
-		     struct ttm_mem_reg *old_mem, struct ttm_mem_reg *new_mem)
+nouveau_bo_move_m2mf(struct ttm_buffer_object *bo, int evict, bool intr,
+		     int no_wait, struct ttm_mem_reg *new_mem)
 {
 	struct nouveau_bo *nvbo = nouveau_bo(bo);
 	struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
+	struct ttm_mem_reg *old_mem = &bo->mem;
 	struct nouveau_channel *chan;
 	uint64_t src_offset, dst_offset;
 	uint32_t page_count;
 	int ret;
 
 	chan = nvbo->channel;
-	if (!chan || nvbo->tile_flags || nvbo->no_vm) {
+	if (!chan || nvbo->tile_flags || nvbo->no_vm)
 		chan = dev_priv->channel;
-		if (!chan)
-			return -EINVAL;
-	}
 
 	src_offset = old_mem->mm_node->start << PAGE_SHIFT;
 	dst_offset = new_mem->mm_node->start << PAGE_SHIFT;
@@ -537,7 +582,7 @@ nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
 
 	placement.fpfn = placement.lpfn = 0;
 	placement.num_placement = placement.num_busy_placement = 1;
-	placement.placement = &placement_memtype;
+	placement.placement = placement.busy_placement = &placement_memtype;
 
 	tmp_mem = *new_mem;
 	tmp_mem.mm_node = NULL;
@@ -549,7 +594,7 @@ nouveau_bo_move_flipd(struct ttm_buffer_object *bo, bool evict, bool intr,
 	if (ret)
 		goto out;
 
-	ret = nouveau_bo_move_m2mf(bo, true, no_wait, &bo->mem, &tmp_mem);
+	ret = nouveau_bo_move_m2mf(bo, true, intr, no_wait, &tmp_mem);
 	if (ret)
 		goto out;
 
@@ -575,7 +620,7 @@ nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
 
 	placement.fpfn = placement.lpfn = 0;
 	placement.num_placement = placement.num_busy_placement = 1;
-	placement.placement = &placement_memtype;
+	placement.placement = placement.busy_placement = &placement_memtype;
 
 	tmp_mem = *new_mem;
 	tmp_mem.mm_node = NULL;
@@ -587,7 +632,7 @@ nouveau_bo_move_flips(struct ttm_buffer_object *bo, bool evict, bool intr,
 	if (ret)
 		goto out;
 
-	ret = nouveau_bo_move_m2mf(bo, true, no_wait, &bo->mem, new_mem);
+	ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait, new_mem);
 	if (ret)
 		goto out;
 
@@ -602,51 +647,106 @@ out:
 }
 
 static int
-nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
-		bool no_wait, struct ttm_mem_reg *new_mem)
+nouveau_bo_vm_bind(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem,
+		   struct nouveau_tile_reg **new_tile)
 {
 	struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
-	struct nouveau_bo *nvbo = nouveau_bo(bo);
 	struct drm_device *dev = dev_priv->dev;
-	struct ttm_mem_reg *old_mem = &bo->mem;
+	struct nouveau_bo *nvbo = nouveau_bo(bo);
+	uint64_t offset;
 	int ret;
 
-	if (dev_priv->card_type == NV_50 && new_mem->mem_type == TTM_PL_VRAM &&
-	    !nvbo->no_vm) {
-		uint64_t offset = new_mem->mm_node->start << PAGE_SHIFT;
+	if (nvbo->no_vm || new_mem->mem_type != TTM_PL_VRAM) {
+		/* Nothing to do. */
+		*new_tile = NULL;
+		return 0;
+	}
 
+	offset = new_mem->mm_node->start << PAGE_SHIFT;
+
+	if (dev_priv->card_type == NV_50) {
 		ret = nv50_mem_vm_bind_linear(dev,
 					      offset + dev_priv->vm_vram_base,
 					      new_mem->size, nvbo->tile_flags,
 					      offset);
 		if (ret)
 			return ret;
+
+	} else if (dev_priv->card_type >= NV_10) {
+		*new_tile = nv10_mem_set_tiling(dev, offset, new_mem->size,
+						nvbo->tile_mode);
 	}
 
-	if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE)
-		return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+	return 0;
+}
+
+static void
+nouveau_bo_vm_cleanup(struct ttm_buffer_object *bo,
+		      struct nouveau_tile_reg *new_tile,
+		      struct nouveau_tile_reg **old_tile)
+{
+	struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
+	struct drm_device *dev = dev_priv->dev;
 
+	if (dev_priv->card_type >= NV_10 &&
+	    dev_priv->card_type < NV_50) {
+		if (*old_tile)
+			nv10_mem_expire_tiling(dev, *old_tile, bo->sync_obj);
+
+		*old_tile = new_tile;
+	}
+}
+
+static int
+nouveau_bo_move(struct ttm_buffer_object *bo, bool evict, bool intr,
+		bool no_wait, struct ttm_mem_reg *new_mem)
+{
+	struct drm_nouveau_private *dev_priv = nouveau_bdev(bo->bdev);
+	struct nouveau_bo *nvbo = nouveau_bo(bo);
+	struct ttm_mem_reg *old_mem = &bo->mem;
+	struct nouveau_tile_reg *new_tile = NULL;
+	int ret = 0;
+
+	ret = nouveau_bo_vm_bind(bo, new_mem, &new_tile);
+	if (ret)
+		return ret;
+
+	/* Software copy if the card isn't up and running yet. */
+	if (dev_priv->init_state != NOUVEAU_CARD_INIT_DONE ||
+	    !dev_priv->channel) {
+		ret = ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+		goto out;
+	}
+
+	/* Fake bo copy. */
 	if (old_mem->mem_type == TTM_PL_SYSTEM && !bo->ttm) {
 		BUG_ON(bo->mem.mm_node != NULL);
 		bo->mem = *new_mem;
 		new_mem->mm_node = NULL;
-		return 0;
+		goto out;
 	}
 
-	if (new_mem->mem_type == TTM_PL_SYSTEM) {
-		if (old_mem->mem_type == TTM_PL_SYSTEM)
-			return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-		if (nouveau_bo_move_flipd(bo, evict, intr, no_wait, new_mem))
-			return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	} else if (old_mem->mem_type == TTM_PL_SYSTEM) {
-		if (nouveau_bo_move_flips(bo, evict, intr, no_wait, new_mem))
-			return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	} else {
-		if (nouveau_bo_move_m2mf(bo, evict, no_wait, old_mem, new_mem))
-			return ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
-	}
+	/* Hardware assisted copy. */
+	if (new_mem->mem_type == TTM_PL_SYSTEM)
+		ret = nouveau_bo_move_flipd(bo, evict, intr, no_wait, new_mem);
+	else if (old_mem->mem_type == TTM_PL_SYSTEM)
+		ret = nouveau_bo_move_flips(bo, evict, intr, no_wait, new_mem);
+	else
+		ret = nouveau_bo_move_m2mf(bo, evict, intr, no_wait, new_mem);
 
-	return 0;
+	if (!ret)
+		goto out;
+
+	/* Fallback to software copy. */
+	ret = ttm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+
+out:
+	if (ret)
+		nouveau_bo_vm_cleanup(bo, NULL, &new_tile);
+	else
+		nouveau_bo_vm_cleanup(bo, new_tile, &nvbo->tile);
+
+	return ret;
 }
 
 static int