[Nouveau] [PATCH] drm/nv10: disable perf hack on low memory cards

[Marcin Slusarz]

On 16MB cards it's too easy to hit ENOMEM with 2D use when this
perf hack is enabled.

This should fix https://bugs.freedesktop.org/show_bug.cgi?id=42384

Signed-off-by: Marcin Slusarz <marcin.slusarz at gmail.com>
Cc: Francisco Jerez <currojerez at riseup.net>
---
 drivers/gpu/drm/nouveau/nouveau_bo.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 7226f41..a692648 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -148,6 +148,7 @@ set_placement_range(struct nouveau_bo *nvbo, uint32_t type)
 
 	if (dev_priv->card_type == NV_10 &&
 	    nvbo->tile_mode && (type & TTM_PL_FLAG_VRAM) &&
+	    dev_priv->vram_size >= 32 * 1024 * 1024 &&
 	    nvbo->bo.mem.num_pages < vram_pages / 2) {
 		/*
 		 * Make sure that the color and depth buffers are handled
-- 
1.7.7