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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>
This commit is contained in:
Ben Skeggs 2011-06-06 14:15:46 +10:00
parent 111af5c100
commit f91bac5bf6
3 changed files with 15 additions and 19 deletions
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27
drivers/gpu/drm/nouveau/nouveau_bo.c
View File

@ -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);

1
drivers/gpu/drm/nouveau/nouveau_drv.h
View File

@ -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;

6
drivers/gpu/drm/nouveau/nouveau_mem.c
View File

@ -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;