drm/nouveau: store bo's page size in nouveau_bo

Was previously assuming a page size of 4KiB unless a VMA was present to
override it.  Eventually, a buffer won't necessarily have a VMA at all at
some stages of its life, so we need to store this info elsewhere.

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 12d264b..71d01ce 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -58,7 +58,7 @@ nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
 
 static void
 nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
-                      int *align, int *size, int *page_shift)
+                      int *align, int *size)
 {
        struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
 
@@ -82,17 +82,8 @@ nouveau_bo_fixup_align(struct nouveau_bo *nvbo, u32 flags,
                        }
                }
        } else {
-               if (likely(dev_priv->chan_vm)) {
-                       if (!(flags & TTM_PL_FLAG_TT) &&  *size > 256 * 1024)
-                               *page_shift = dev_priv->chan_vm->lpg_shift;
-                       else
-                               *page_shift = dev_priv->chan_vm->spg_shift;
-               } else {
-                       *page_shift = 12;
-               }
-
-               *size = roundup(*size, (1 << *page_shift));
-               *align = max((1 << *page_shift), *align);
+               *size = roundup(*size, (1 << nvbo->page_shift));
+               *align = max((1 <<  nvbo->page_shift), *align);
        }
 
        *size = roundup(*size, PAGE_SIZE);
@@ -105,7 +96,7 @@ 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 = 0, page_shift = 0;
+       int ret;
 
        nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
        if (!nvbo)
@@ -116,11 +107,17 @@ nouveau_bo_new(struct drm_device *dev, struct nouveau_channel *chan,
        nvbo->tile_flags = tile_flags;
        nvbo->bo.bdev = &dev_priv->ttm.bdev;
 
-       nouveau_bo_fixup_align(nvbo, flags, &align, &size, &page_shift);
+       nvbo->page_shift = 12;
+       if (dev_priv->bar1_vm) {
+               if (!(flags & TTM_PL_FLAG_TT) && size > 256 * 1024)
+                       nvbo->page_shift = dev_priv->bar1_vm->lpg_shift;
+       }
+
+       nouveau_bo_fixup_align(nvbo, flags, &align, &size);
        align >>= PAGE_SHIFT;
 
        if (dev_priv->chan_vm) {
-               ret = nouveau_vm_get(dev_priv->chan_vm, size, page_shift,
+               ret = nouveau_vm_get(dev_priv->chan_vm, size, nvbo->page_shift,
                                     NV_MEM_ACCESS_RW, &nvbo->vma);
                if (ret) {
                        kfree(nvbo);

diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 0f53966..1439188 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -116,6 +116,7 @@ struct nouveau_bo {
        struct nouveau_channel *channel;
 
        struct nouveau_vma vma;
+       unsigned page_shift;
 
        uint32_t tile_mode;
        uint32_t tile_flags;

diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 5ee14d2..f55b51b 100644 (file)
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -794,7 +794,7 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
        int ret;
 
        if (nvbo->tile_flags & NOUVEAU_GEM_TILE_NONCONTIG)
-               size_nc = 1 << nvbo->vma.node->type;
+               size_nc = 1 << nvbo->page_shift;
 
        ret = vram->get(dev, mem->num_pages << PAGE_SHIFT,
                        mem->page_alignment << PAGE_SHIFT, size_nc,
@@ -804,9 +804,7 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
                return (ret == -ENOSPC) ? 0 : ret;
        }
 
-       node->page_shift = 12;
-       if (nvbo->vma.node)
-               node->page_shift = nvbo->vma.node->type;
+       node->page_shift = nvbo->page_shift;
 
        mem->mm_node = node;
        mem->start   = node->offset >> PAGE_SHIFT;