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drm/nv50: enable 4KiB pages for small vram allocations

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Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2010-11-12 15:12:51 +10:00
parent 4c13614298
commit bfd83aca5a
2 changed files with 25 additions and 19 deletions
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41
drivers/gpu/drm/nouveau/nouveau_bo.c
View File

@ -54,39 +54,45 @@ nouveau_bo_del_ttm(struct ttm_buffer_object *bo)
}
static void
nouveau_bo_fixup_align(struct drm_device *dev,
uint32_t tile_mode, uint32_t tile_flags,
int *align, int *size)
nouveau_bo_fixup_align(struct nouveau_bo *nvbo, int *align, int *size,
int *page_shift)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct drm_nouveau_private *dev_priv = nouveau_bdev(nvbo->bo.bdev);
if (dev_priv->card_type < NV_50) {
if (tile_mode) {
if (nvbo->tile_mode) {
if (dev_priv->chipset >= 0x40) {
*align = 65536;
*size = roundup(*size, 64 * tile_mode);
*size = roundup(*size, 64 * nvbo->tile_mode);
} else if (dev_priv->chipset >= 0x30) {
*align = 32768;
*size = roundup(*size, 64 * tile_mode);
*size = roundup(*size, 64 * nvbo->tile_mode);
} else if (dev_priv->chipset >= 0x20) {
*align = 16384;
*size = roundup(*size, 64 * tile_mode);
*size = roundup(*size, 64 * nvbo->tile_mode);
} else if (dev_priv->chipset >= 0x10) {
*align = 16384;
*size = roundup(*size, 32 * tile_mode);
*size = roundup(*size, 32 * nvbo->tile_mode);
}
}
} else {
if (likely(dev_priv->chan_vm)) {
if (*size > 256 * 1024)
*page_shift = dev_priv->chan_vm->lpg_shift;
else
*page_shift = dev_priv->chan_vm->spg_shift;
} else {
*page_shift = 12;
}
/* 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);
*size = roundup(*size, (1 << *page_shift));
*align = max((1 << *page_shift), *align);
}
*size = roundup(*size, PAGE_SIZE);
}
int
@ -97,7 +103,7 @@ 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;
int ret = 0, page_shift = 0;
nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
if (!nvbo)
@ -110,12 +116,11 @@ 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(dev, tile_mode, nouveau_bo_tile_layout(nvbo),
&align, &size);
nouveau_bo_fixup_align(nvbo, &align, &size, &page_shift);
align >>= PAGE_SHIFT;
if (!nvbo->no_vm && dev_priv->chan_vm) {
ret = nouveau_vm_get(dev_priv->chan_vm, size, 16,
ret = nouveau_vm_get(dev_priv->chan_vm, size, page_shift,
NV_MEM_ACCESS_RW, &nvbo->vma);
if (ret) {
kfree(nvbo);

3
drivers/gpu/drm/nouveau/nouveau_mem.c
View File

@ -715,7 +715,8 @@ nouveau_vram_manager_new(struct ttm_mem_type_manager *man,
struct nouveau_vram *vram;
int ret;
ret = nv50_vram_new(dev, mem->num_pages << PAGE_SHIFT, 65536, 0,
ret = nv50_vram_new(dev, mem->num_pages << PAGE_SHIFT,
mem->page_alignment << PAGE_SHIFT, 0,
(nvbo->tile_flags >> 8) & 0x7f, &vram);
if (ret)
return ret;