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platform_kernel-5.15
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drm/nouveau/ltcg: fix ltcg memory initialization after suspend 

Some registers were not initialized in init, this causes them to be
uninitialized after suspend.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Maarten Lankhorst 2013-08-14 10:38:53 +02:00 committed by Ben Skeggs
parent 6284bf41b9
commit 52f9a4d71b
1 changed files with 23 additions and 9 deletions
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32
drivers/gpu/drm/nouveau/core/subdev/ltcg/nvc0.c
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@ -30,8 +30,9 @@ struct nvc0_ltcg_priv {
struct nouveau_ltcg base;
u32 part_nr;
u32 subp_nr;
struct nouveau_mm tags;
u32 num_tags;
u32 tag_base;
struct nouveau_mm tags;
struct nouveau_mm_node *tag_ram;
};
@ -117,10 +118,6 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv)
u32 tag_size, tag_margin, tag_align;
int ret;
nv_wr32(priv, 0x17e8d8, priv->part_nr);
if (nv_device(pfb)->card_type >= NV_E0)
nv_wr32(priv, 0x17e000, priv->part_nr);
/* tags for 1/4 of VRAM should be enough (8192/4 per GiB of VRAM) */
priv->num_tags = (pfb->ram->size >> 17) / 4;
if (priv->num_tags > (1 << 17))
@ -152,7 +149,7 @@ nvc0_ltcg_init_tag_ram(struct nouveau_fb *pfb, struct nvc0_ltcg_priv *priv)
tag_base += tag_align - 1;
ret = do_div(tag_base, tag_align);
nv_wr32(priv, 0x17e8d4, tag_base);
priv->tag_base = tag_base;
}
ret = nouveau_mm_init(&priv->tags, 0, priv->num_tags, 1);
@ -182,8 +179,6 @@ nvc0_ltcg_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
}
priv->subp_nr = nv_rd32(priv, 0x17e8dc) >> 28;
nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
ret = nvc0_ltcg_init_tag_ram(pfb, priv);
if (ret)
return ret;
@ -209,13 +204,32 @@ nvc0_ltcg_dtor(struct nouveau_object *object)
nouveau_ltcg_destroy(ltcg);
}
static int
nvc0_ltcg_init(struct nouveau_object *object)
{
struct nouveau_ltcg *ltcg = (struct nouveau_ltcg *)object;
struct nvc0_ltcg_priv *priv = (struct nvc0_ltcg_priv *)ltcg;
int ret;
ret = nouveau_ltcg_init(ltcg);
if (ret)
return ret;
nv_mask(priv, 0x17e820, 0x00100000, 0x00000000); /* INTR_EN &= ~0x10 */
nv_wr32(priv, 0x17e8d8, priv->part_nr);
if (nv_device(ltcg)->card_type >= NV_E0)
nv_wr32(priv, 0x17e000, priv->part_nr);
nv_wr32(priv, 0x17e8d4, priv->tag_base);
return 0;
}
struct nouveau_oclass
nvc0_ltcg_oclass = {
.handle = NV_SUBDEV(LTCG, 0xc0),
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nvc0_ltcg_ctor,
.dtor = nvc0_ltcg_dtor,
.init = _nouveau_ltcg_init,
.init = nvc0_ltcg_init,
.fini = _nouveau_ltcg_fini,
},
};