Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / fb / nv04.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c
new file mode 100644 (file)
index 0000000..c063dec
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/nv04.c
@@ -0,0 +1,87 @@
+/*
+ * Copyright 2012 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+#include "nv04.h"
+#include "regsnv04.h"
+
+bool
+nv04_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags)
+{
+       if (!(tile_flags & 0xff00))
+               return true;
+
+       return false;
+}
+
+static int
+nv04_fb_init(struct nvkm_object *object)
+{
+       struct nv04_fb_priv *priv = (void *)object;
+       int ret;
+
+       ret = nvkm_fb_init(&priv->base);
+       if (ret)
+               return ret;
+
+       /* This is what the DDX did for NV_ARCH_04, but a mmio-trace shows
+        * nvidia reading PFB_CFG_0, then writing back its original value.
+        * (which was 0x701114 in this case)
+        */
+       nv_wr32(priv, NV04_PFB_CFG0, 0x1114);
+       return 0;
+}
+
+int
+nv04_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+            struct nvkm_oclass *oclass, void *data, u32 size,
+            struct nvkm_object **pobject)
+{
+       struct nv04_fb_impl *impl = (void *)oclass;
+       struct nv04_fb_priv *priv;
+       int ret;
+
+       ret = nvkm_fb_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.tile.regions = impl->tile.regions;
+       priv->base.tile.init = impl->tile.init;
+       priv->base.tile.comp = impl->tile.comp;
+       priv->base.tile.fini = impl->tile.fini;
+       priv->base.tile.prog = impl->tile.prog;
+       return 0;
+}
+
+struct nvkm_oclass *
+nv04_fb_oclass = &(struct nv04_fb_impl) {
+       .base.base.handle = NV_SUBDEV(FB, 0x04),
+       .base.base.ofuncs = &(struct nvkm_ofuncs) {
+               .ctor = nv04_fb_ctor,
+               .dtor = _nvkm_fb_dtor,
+               .init = nv04_fb_init,
+               .fini = _nvkm_fb_fini,
+       },
+       .base.memtype = nv04_fb_memtype_valid,
+       .base.ram = &nv04_ram_oclass,
+}.base.base;