drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)

The symlinks were annoying some people, and they're not used anywhere
else in the kernel tree.  The include directory structure has been
changed so that symlinks aren't needed anymore.

NVKM has been moved from core/ to nvkm/ to make it more obvious as to
what the directory is for, and as some minor prep for when NVKM gets
split out into its own module (virt) at a later date.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

1 files changed, 126 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
new file mode 100644
index 000000000000..7fa331516f84
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/base.c
@@ -0,0 +1,126 @@
+/*
+ * Copyright 2014 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 <bskeggs@redhat.com>
+ */
+
+#include "priv.h"
+
+static int
+nvkm_ltc_tags_alloc(struct nouveau_ltc *ltc, u32 n,
+		    struct nouveau_mm_node **pnode)
+{
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	int ret;
+
+	ret = nouveau_mm_head(&priv->tags, 0, 1, n, n, 1, pnode);
+	if (ret)
+		*pnode = NULL;
+
+	return ret;
+}
+
+static void
+nvkm_ltc_tags_free(struct nouveau_ltc *ltc, struct nouveau_mm_node **pnode)
+{
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	nouveau_mm_free(&priv->tags, pnode);
+}
+
+static void
+nvkm_ltc_tags_clear(struct nouveau_ltc *ltc, u32 first, u32 count)
+{
+	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	const u32 limit = first + count - 1;
+
+	BUG_ON((first > limit) || (limit >= priv->num_tags));
+
+	impl->cbc_clear(priv, first, limit);
+	impl->cbc_wait(priv);
+}
+
+static int
+nvkm_ltc_zbc_color_get(struct nouveau_ltc *ltc, int index, const u32 color[4])
+{
+	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	memcpy(priv->zbc_color[index], color, sizeof(priv->zbc_color[index]));
+	impl->zbc_clear_color(priv, index, color);
+	return index;
+}
+
+static int
+nvkm_ltc_zbc_depth_get(struct nouveau_ltc *ltc, int index, const u32 depth)
+{
+	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(ltc);
+	struct nvkm_ltc_priv *priv = (void *)ltc;
+	priv->zbc_depth[index] = depth;
+	impl->zbc_clear_depth(priv, index, depth);
+	return index;
+}
+
+int
+_nvkm_ltc_init(struct nouveau_object *object)
+{
+	const struct nvkm_ltc_impl *impl = (void *)nv_oclass(object);
+	struct nvkm_ltc_priv *priv = (void *)object;
+	int ret, i;
+
+	ret = nouveau_subdev_init(&priv->base.base);
+	if (ret)
+		return ret;
+
+	for (i = priv->base.zbc_min; i <= priv->base.zbc_max; i++) {
+		impl->zbc_clear_color(priv, i, priv->zbc_color[i]);
+		impl->zbc_clear_depth(priv, i, priv->zbc_depth[i]);
+	}
+
+	return 0;
+}
+
+int
+nvkm_ltc_create_(struct nouveau_object *parent, struct nouveau_object *engine,
+		 struct nouveau_oclass *oclass, int length, void **pobject)
+{
+	const struct nvkm_ltc_impl *impl = (void *)oclass;
+	struct nvkm_ltc_priv *priv;
+	int ret;
+
+	ret = nouveau_subdev_create_(parent, engine, oclass, 0, "PLTCG",
+				     "l2c", length, pobject);
+	priv = *pobject;
+	if (ret)
+		return ret;
+
+	memset(priv->zbc_color, 0x00, sizeof(priv->zbc_color));
+	memset(priv->zbc_depth, 0x00, sizeof(priv->zbc_depth));
+
+	priv->base.base.intr = impl->intr;
+	priv->base.tags_alloc = nvkm_ltc_tags_alloc;
+	priv->base.tags_free = nvkm_ltc_tags_free;
+	priv->base.tags_clear = nvkm_ltc_tags_clear;
+	priv->base.zbc_min = 1; /* reserve 0 for disabled */
+	priv->base.zbc_max = min(impl->zbc, NOUVEAU_LTC_MAX_ZBC_CNT) - 1;
+	priv->base.zbc_color_get = nvkm_ltc_zbc_color_get;
+	priv->base.zbc_depth_get = nvkm_ltc_zbc_depth_get;
+	return 0;
+}