提交 cd8c14b4 编写于 作者: B Ben Skeggs

drm/nvc0/ltcg: read LTS count at startup

Not really sure how to confirm this 100%, but, the numbers match on all the
traces I have for NVCx (2 LTS), NVD9 (1LTS) and NVEx (4LTS).
Signed-off-by: NBen Skeggs <bskeggs@redhat.com>
上级 e5bf578c
......@@ -26,6 +26,7 @@
struct nvc0_ltcg_priv {
struct nouveau_ltcg base;
u32 subp_nr;
};
static void
......@@ -49,7 +50,7 @@ nvc0_ltcg_intr(struct nouveau_subdev *subdev)
units = nv_rd32(priv, 0x00017c);
while (units) {
u32 subp, unit = ffs(units) - 1;
for (subp = 0; subp < 2; subp++)
for (subp = 0; subp < priv->subp_nr; subp++)
nvc0_ltcg_subp_isr(priv, unit, subp);
units &= ~(1 << unit);
}
......@@ -73,6 +74,7 @@ nvc0_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
if (ret)
return ret;
priv->subp_nr = nv_rd32(priv, 0x17e8dc) >> 24;
nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
nv_subdev(priv)->intr = nvc0_ltcg_intr;
......
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