Commit 1e482f75 authored by Marcin Slusarz's avatar Marcin Slusarz Committed by Ben Skeggs
Browse files

drm/nouveau: by default use low bpp framebuffer on low memory cards



Framebuffer's BPP is not that important but can waste significant part
of memory on low-VRAM cards. Lower it to 8bpp on < 32MB cards and to
16bpp on 64MB cards. It can still be overridden by video= option.
Signed-off-by: default avatarMarcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 4beb116a
......@@ -487,6 +487,7 @@ int nouveau_fbcon_init(struct drm_device *dev)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nouveau_fbdev *nfbdev;
int preferred_bpp;
int ret;
nfbdev = kzalloc(sizeof(struct nouveau_fbdev), GFP_KERNEL);
......@@ -505,7 +506,15 @@ int nouveau_fbcon_init(struct drm_device *dev)
}
drm_fb_helper_single_add_all_connectors(&nfbdev->helper);
drm_fb_helper_initial_config(&nfbdev->helper, 32);
if (dev_priv->vram_size <= 32 * 1024 * 1024)
preferred_bpp = 8;
else if (dev_priv->vram_size <= 64 * 1024 * 1024)
preferred_bpp = 16;
else
preferred_bpp = 32;
drm_fb_helper_initial_config(&nfbdev->helper, preferred_bpp);
return 0;
}
......
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