drm/nvc0/gr: calculate magicgpc918 ourselves
Not a clue what it is yet, but we get the same numbers as NVIDIA now.
My 465 didn't seem to care to greatly *what* I bashed into these registers..
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.c b/drivers/gpu/drm/nouveau/nvc0_graph.c
index 314e938..68b25ca 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.c
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.c
@@ -350,6 +350,7 @@
nvc0_graph_init_gpc_0(struct drm_device *dev)
{
struct nvc0_graph_priv *priv = nv_engine(dev, NVOBJ_ENGINE_GR);
+ const u32 magicgpc918 = DIV_ROUND_UP(0x00800000, priv->tp_total);
u32 data[TP_MAX / 8];
u8 tpnr[GPC_MAX];
int i, gpc, tpc;
@@ -361,13 +362,6 @@
* 465: 3/4/4/0 4 7
* 470: 3/3/4/4 5 5
* 480: 3/4/4/4 6 6
- *
- * magicgpc918
- * 450: 00200000 00000000001000000000000000000000
- * 460: 00124925 00000000000100100100100100100101
- * 465: 000ba2e9 00000000000010111010001011101001
- * 470: 00092493 00000000000010010010010010010011
- * 480: 00088889 00000000000010001000100010001001
*/
memset(data, 0x00, sizeof(data));
@@ -390,10 +384,10 @@
nv_wr32(dev, GPC_UNIT(gpc, 0x0914), priv->magic_not_rop_nr << 8 |
priv->tp_nr[gpc]);
nv_wr32(dev, GPC_UNIT(gpc, 0x0910), 0x00040000 | priv->tp_total);
- nv_wr32(dev, GPC_UNIT(gpc, 0x0918), priv->magicgpc918);
+ nv_wr32(dev, GPC_UNIT(gpc, 0x0918), magicgpc918);
}
- nv_wr32(dev, GPC_BCAST(0x1bd4), priv->magicgpc918);
+ nv_wr32(dev, GPC_BCAST(0x1bd4), magicgpc918);
nv_wr32(dev, GPC_BCAST(0x08ac), priv->rop_nr);
}
@@ -845,37 +839,28 @@
case 0xc0:
if (priv->tp_total == 11) { /* 465, 3/4/4/0, 4 */
priv->magic_not_rop_nr = 0x07;
- /* filled values up to tp_total, the rest 0 */
- priv->magicgpc918 = 0x000ba2e9;
} else
if (priv->tp_total == 14) { /* 470, 3/3/4/4, 5 */
priv->magic_not_rop_nr = 0x05;
- priv->magicgpc918 = 0x00092493;
} else
if (priv->tp_total == 15) { /* 480, 3/4/4/4, 6 */
priv->magic_not_rop_nr = 0x06;
- priv->magicgpc918 = 0x00088889;
}
break;
case 0xc3: /* 450, 4/0/0/0, 2 */
priv->magic_not_rop_nr = 0x03;
- priv->magicgpc918 = 0x00200000;
break;
case 0xc4: /* 460, 3/4/0/0, 4 */
priv->magic_not_rop_nr = 0x01;
- priv->magicgpc918 = 0x00124925;
break;
case 0xc1: /* 2/0/0/0, 1 */
priv->magic_not_rop_nr = 0x01;
- priv->magicgpc918 = 0x00400000;
break;
case 0xc8: /* 4/4/3/4, 5 */
priv->magic_not_rop_nr = 0x06;
- priv->magicgpc918 = 0x00088889;
break;
case 0xce: /* 4/4/0/0, 4 */
priv->magic_not_rop_nr = 0x03;
- priv->magicgpc918 = 0x00100000;
break;
}
@@ -885,7 +870,6 @@
priv->tp_nr[3], priv->rop_nr);
/* use 0xc3's values... */
priv->magic_not_rop_nr = 0x03;
- priv->magicgpc918 = 0x00200000;
}
NVOBJ_CLASS(dev, 0x902d, GR); /* 2D */