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authorPierre Moreau <pierre.morrow@free.fr>2014-12-16 09:47:40 +1000
committerBen Skeggs <bskeggs@redhat.com>2014-12-22 08:37:38 +1000
commite9d91238990d89421315a556a3ba4dbbae35ffbf (patch)
treef1879fda4d90a722cee497fc174bdf99dec7c399 /drivers
parent5f3ac299c0b76addcf3706cb6cc9d04dad26dab0 (diff)
downloadblackbird-op-linux-e9d91238990d89421315a556a3ba4dbbae35ffbf.tar.gz
blackbird-op-linux-e9d91238990d89421315a556a3ba4dbbae35ffbf.zip
drm/nouveau/fb/ram/mcp77: enable NISO poller
Signed-off-by: Pierre Moreau <pierre.morrow@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c44
1 files changed, 39 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
index f56ee5527006..033a8e999497 100644
--- a/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
+++ b/drivers/gpu/drm/nouveau/core/subdev/fb/ramnvaa.c
@@ -26,6 +26,7 @@
struct nvaa_ram_priv {
struct nouveau_ram base;
+ u64 poller_base;
};
static int
@@ -33,8 +34,8 @@ nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 datasize,
struct nouveau_object **pobject)
{
- const u32 rsvd_head = ( 256 * 1024) >> 12; /* vga memory */
- const u32 rsvd_tail = (1024 * 1024) >> 12; /* vbios etc */
+ u32 rsvd_head = ( 256 * 1024); /* vga memory */
+ u32 rsvd_tail = (1024 * 1024); /* vbios etc */
struct nouveau_fb *pfb = nouveau_fb(parent);
struct nvaa_ram_priv *priv;
int ret;
@@ -48,8 +49,12 @@ nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
priv->base.stolen = (u64)nv_rd32(pfb, 0x100e10) << 12;
priv->base.size = (u64)nv_rd32(pfb, 0x100e14) << 12;
- ret = nouveau_mm_init(&pfb->vram, rsvd_head, (priv->base.size >> 12) -
- (rsvd_head + rsvd_tail), 1);
+ rsvd_tail += 0x1000;
+ priv->poller_base = priv->base.size - rsvd_tail;
+
+ ret = nouveau_mm_init(&pfb->vram, rsvd_head >> 12,
+ (priv->base.size - (rsvd_head + rsvd_tail)) >> 12,
+ 1);
if (ret)
return ret;
@@ -58,12 +63,41 @@ nvaa_ram_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
return 0;
}
+static int
+nvaa_ram_init(struct nouveau_object *object)
+{
+ struct nouveau_fb *pfb = nouveau_fb(object);
+ struct nvaa_ram_priv *priv = (void *)object;
+ int ret;
+ u64 dniso, hostnb, flush;
+
+ ret = nouveau_ram_init(&priv->base);
+ if (ret)
+ return ret;
+
+ dniso = ((priv->base.size - (priv->poller_base + 0x00)) >> 5) - 1;
+ hostnb = ((priv->base.size - (priv->poller_base + 0x20)) >> 5) - 1;
+ flush = ((priv->base.size - (priv->poller_base + 0x40)) >> 5) - 1;
+
+ /* Enable NISO poller for various clients and set their associated
+ * read address, only for MCP77/78 and MCP79/7A. (fd#25701)
+ */
+ nv_wr32(pfb, 0x100c18, dniso);
+ nv_mask(pfb, 0x100c14, 0x00000000, 0x00000001);
+ nv_wr32(pfb, 0x100c1c, hostnb);
+ nv_mask(pfb, 0x100c14, 0x00000000, 0x00000002);
+ nv_wr32(pfb, 0x100c24, flush);
+ nv_mask(pfb, 0x100c14, 0x00000000, 0x00010000);
+
+ return 0;
+}
+
struct nouveau_oclass
nvaa_ram_oclass = {
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = nvaa_ram_ctor,
.dtor = _nouveau_ram_dtor,
- .init = _nouveau_ram_init,
+ .init = nvaa_ram_init,
.fini = _nouveau_ram_fini,
},
};
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