Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / drivers / gpu / drm / nouveau / nvkm / subdev / fb / gf100.c

diff --git a/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
new file mode 100644 (file)
index 0000000..d51aa02
--- /dev/null
+++ b/kernel/drivers/gpu/drm/nouveau/nvkm/subdev/fb/gf100.c
@@ -0,0 +1,122 @@
+/*
+ * 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 "gf100.h"
+
+#include <core/device.h>
+
+extern const u8 gf100_pte_storage_type_map[256];
+
+bool
+gf100_fb_memtype_valid(struct nvkm_fb *pfb, u32 tile_flags)
+{
+       u8 memtype = (tile_flags & 0x0000ff00) >> 8;
+       return likely((gf100_pte_storage_type_map[memtype] != 0xff));
+}
+
+static void
+gf100_fb_intr(struct nvkm_subdev *subdev)
+{
+       struct gf100_fb_priv *priv = (void *)subdev;
+       u32 intr = nv_rd32(priv, 0x000100);
+       if (intr & 0x08000000) {
+               nv_debug(priv, "PFFB intr\n");
+               intr &= ~0x08000000;
+       }
+       if (intr & 0x00002000) {
+               nv_debug(priv, "PBFB intr\n");
+               intr &= ~0x00002000;
+       }
+}
+
+int
+gf100_fb_init(struct nvkm_object *object)
+{
+       struct gf100_fb_priv *priv = (void *)object;
+       int ret;
+
+       ret = nvkm_fb_init(&priv->base);
+       if (ret)
+               return ret;
+
+       if (priv->r100c10_page)
+               nv_wr32(priv, 0x100c10, priv->r100c10 >> 8);
+
+       nv_mask(priv, 0x100c80, 0x00000001, 0x00000000); /* 128KiB lpg */
+       return 0;
+}
+
+void
+gf100_fb_dtor(struct nvkm_object *object)
+{
+       struct nvkm_device *device = nv_device(object);
+       struct gf100_fb_priv *priv = (void *)object;
+
+       if (priv->r100c10_page) {
+               dma_unmap_page(nv_device_base(device), priv->r100c10, PAGE_SIZE,
+                              DMA_BIDIRECTIONAL);
+               __free_page(priv->r100c10_page);
+       }
+
+       nvkm_fb_destroy(&priv->base);
+}
+
+int
+gf100_fb_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
+             struct nvkm_oclass *oclass, void *data, u32 size,
+             struct nvkm_object **pobject)
+{
+       struct nvkm_device *device = nv_device(parent);
+       struct gf100_fb_priv *priv;
+       int ret;
+
+       ret = nvkm_fb_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->r100c10_page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+       if (priv->r100c10_page) {
+               priv->r100c10 = dma_map_page(nv_device_base(device),
+                                            priv->r100c10_page, 0, PAGE_SIZE,
+                                            DMA_BIDIRECTIONAL);
+               if (dma_mapping_error(nv_device_base(device), priv->r100c10))
+                       return -EFAULT;
+       }
+
+       nv_subdev(priv)->intr = gf100_fb_intr;
+       return 0;
+}
+
+struct nvkm_oclass *
+gf100_fb_oclass = &(struct nvkm_fb_impl) {
+       .base.handle = NV_SUBDEV(FB, 0xc0),
+       .base.ofuncs = &(struct nvkm_ofuncs) {
+               .ctor = gf100_fb_ctor,
+               .dtor = gf100_fb_dtor,
+               .init = gf100_fb_init,
+               .fini = _nvkm_fb_fini,
+       },
+       .memtype = gf100_fb_memtype_valid,
+       .ram = &gf100_ram_oclass,
+}.base;