diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2009-12-16 14:28:55 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2009-12-16 17:05:57 +1000 |
| commit | 0735f62e116fae1e4f36237a97de28e8a56b4c2c (patch) | |
| tree | 3c43ff86368448a041fecd5c8841de3e8230a003 /drivers/gpu/drm/nouveau/nouveau_fbcon.c | |
| parent | 3c8868d3dbba5110bd43b49879f12d1a6b2a28ca (diff) | |
drm/nouveau: prevent all channel creation if accel not available
Previously, if there was no firmware available, the DRM would just
disable channel creation from userspace, but still use a single
channel for its own purposes.
With a bit of care it should actually be possible to do this, due
to the DRM's very limited use of the engine. It currently doesn't
work correctly however, resulting in corrupted fbcon and hangs on
a number of cards.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_fbcon.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_fbcon.c | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 489d4926811..84af25c238b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -58,7 +58,7 @@ nouveau_fbcon_sync(struct fb_info *info) struct nouveau_channel *chan = dev_priv->channel; int ret, i; - if (!chan->accel_done || + if (!chan || !chan->accel_done || info->state != FBINFO_STATE_RUNNING || info->flags & FBINFO_HWACCEL_DISABLED) return 0; @@ -318,14 +318,16 @@ nouveau_fbcon_create(struct drm_device *dev, uint32_t fb_width, par->nouveau_fb = nouveau_fb; par->dev = dev; - switch (dev_priv->card_type) { - case NV_50: - nv50_fbcon_accel_init(info); - break; - default: - nv04_fbcon_accel_init(info); - break; - }; + if (dev_priv->channel) { + switch (dev_priv->card_type) { + case NV_50: + nv50_fbcon_accel_init(info); + break; + default: + nv04_fbcon_accel_init(info); + break; + }; + } nouveau_fbcon_zfill(dev); |