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| author | Ben Skeggs <bskeggs@redhat.com> | 2011-08-04 14:16:45 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2011-09-20 16:10:27 +1000 |
| commit | 28e2d12405f1afb34435a23d6bba223ff378de91 (patch) | |
| tree | 55dd7ee2111cf00175ea0315ff2c5a585b185707 /drivers/gpu/drm/nouveau/nouveau_dp.c | |
| parent | 75a1fccf92ac6703e7cd4d2a2d1d25b87102402b (diff) | |
| download | linux-28e2d12405f1afb34435a23d6bba223ff378de91.tar.gz linux-28e2d12405f1afb34435a23d6bba223ff378de91.tar.bz2 linux-28e2d12405f1afb34435a23d6bba223ff378de91.zip | |
drm/nouveau/dp: execute some more vbios tables relating to link rate
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_dp.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_dp.c | 26 |
1 files changed, 21 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c index 47bd3ada6a3b..3777616cc157 100644 --- a/drivers/gpu/drm/nouveau/nouveau_dp.c +++ b/drivers/gpu/drm/nouveau/nouveau_dp.c @@ -308,23 +308,39 @@ struct dp_state { static void dp_set_link_config(struct drm_device *dev, struct dp_state *dp) { + struct drm_nouveau_private *dev_priv = dev->dev_private; int or = dp->or, link = dp->link; - u32 clk_sor, dp_ctrl; - u8 sink[2]; + u8 *bios, headerlen, sink[2]; + u32 dp_ctrl; NV_DEBUG_KMS(dev, "%d lanes at %d KB/s\n", dp->link_nr, dp->link_bw); + /* set selected link rate on source */ switch (dp->link_bw) { case 270000: - clk_sor = 0x00040000; + nv_mask(dev, 0x614300 + (or * 0x800), 0x000c0000, 0x00040000); sink[0] = DP_LINK_BW_2_7; break; default: - clk_sor = 0x00000000; + nv_mask(dev, 0x614300 + (or * 0x800), 0x000c0000, 0x00000000); sink[0] = DP_LINK_BW_1_62; break; } + /* offset +0x0a of each dp encoder table entry is a pointer to another + * table, that has (among other things) pointers to more scripts that + * need to be executed, this time depending on link speed. + */ + bios = nouveau_bios_dp_table(dev, dp->dcb, &headerlen); + if (bios && (bios = ROMPTR(&dev_priv->vbios, bios[10]))) { + u16 script = ROM16(bios[2]); + if (dp->link_bw != 270000) + script = ROM16(bios[6]); + + nouveau_bios_run_init_table(dev, script, dp->dcb, dp->crtc); + } + + /* configure lane count on the source */ dp_ctrl = ((1 << dp->link_nr) - 1) << 16; sink[1] = dp->link_nr; if (dp->enh_frame) { @@ -332,9 +348,9 @@ dp_set_link_config(struct drm_device *dev, struct dp_state *dp) sink[1] |= DP_LANE_COUNT_ENHANCED_FRAME_EN; } - nv_mask(dev, 0x614300 + (or * 0x800), 0x000c0000, clk_sor); nv_mask(dev, NV50_SOR_DP_CTRL(or, link), 0x001f4000, dp_ctrl); + /* inform the sink of the new configuration */ auxch_tx(dev, dp->auxch, 8, DP_LINK_BW_SET, sink, 2); } |