diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2011-10-12 16:36:42 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-12-21 19:01:41 +1000 |
| commit | b4c26818aeb4159dd537eff6453ae5ebf7a69723 (patch) | |
| tree | c88d961c30eb46da840781f5c1173c4cdcf6b8f3 /drivers/gpu/drm/nouveau/nouveau_bios.c | |
| parent | befb51e9c97e783c86a1da27bdda3a638d2f02c7 (diff) | |
drm/nouveau/mxm: initial implementation of dcb sanitisation
The DCB table provided by the VBIOS on most MXM chips has a number of
entries which either need to be disabled, or modified according to the
MXM-SIS Output Device Descriptors.
The x86 vbios code usually takes care of this for us, however, with the
large number of laptops now with switchable graphics or optimus, a lot
of the time nouveau is responsible for POSTing the card instead - leaving
some fun situations like, plugging in a monitor and having nouveau decide
3 connectors actually just got plugged in..
No MXM-SIS fetching methods implemented yet.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index 35b18f4f7c4e..1faa7d9ceb94 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -5382,6 +5382,9 @@ bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit) struct nvbios *bios = &dev_priv->vbios; u8 entries, *entry; + if (bios->type != NVBIOS_BIT) + return -ENODEV; + entries = bios->data[bios->offset + 10]; entry = &bios->data[bios->offset + 12]; while (entries--) { @@ -5832,7 +5835,7 @@ dcb_table(struct drm_device *dev) return NULL; } -u8 * +void * dcb_outp(struct drm_device *dev, u8 idx) { u8 *dcb = dcb_table(dev); @@ -6663,6 +6666,10 @@ nouveau_bios_init(struct drm_device *dev) if (ret) return ret; + ret = nouveau_mxm_init(dev); + if (ret) + return ret; + ret = parse_dcb_table(dev, bios); if (ret) return ret; @@ -6703,5 +6710,6 @@ nouveau_bios_init(struct drm_device *dev) void nouveau_bios_takedown(struct drm_device *dev) { + nouveau_mxm_fini(dev); nouveau_i2c_fini(dev); } |