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| author | Marcin Slusarz <marcin.slusarz@gmail.com> | 2011-11-06 20:32:04 +0100 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-11-10 09:02:41 +1000 |
| commit | 1e482f75f169861e992eb6b5602dc73a9e0b63a2 (patch) | |
| tree | 8785ad26b68c3951ffcb4d9461e344f808cf1ffb | |
| parent | 4beb116a454867cc3a98d02d906e0f0459aefe72 (diff) | |
| download | xen-1e482f75f169861e992eb6b5602dc73a9e0b63a2.tar.gz | |
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: Marcin Slusarz <marcin.slusarz@gmail.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 14a8627efe4d0..3a4cc32b9e44c 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -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; } |