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, 116 insertions, 0 deletions

diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c
new file mode 100644
index 000000000000..27ad23eaf185
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2009 Francisco Jerez.
+ * All Rights Reserved.
+ *
+ * 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 (including the
+ * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
+ *
+ */
+
+#include "priv.h"
+
+static int
+nv10_gpio_sense(struct nouveau_gpio *gpio, int line)
+{
+	if (line < 2) {
+		line = line * 16;
+		line = nv_rd32(gpio, 0x600818) >> line;
+		return !!(line & 0x0100);
+	} else
+	if (line < 10) {
+		line = (line - 2) * 4;
+		line = nv_rd32(gpio, 0x60081c) >> line;
+		return !!(line & 0x04);
+	} else
+	if (line < 14) {
+		line = (line - 10) * 4;
+		line = nv_rd32(gpio, 0x600850) >> line;
+		return !!(line & 0x04);
+	}
+
+	return -EINVAL;
+}
+
+static int
+nv10_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out)
+{
+	u32 reg, mask, data;
+
+	if (line < 2) {
+		line = line * 16;
+		reg  = 0x600818;
+		mask = 0x00000011;
+		data = (dir << 4) | out;
+	} else
+	if (line < 10) {
+		line = (line - 2) * 4;
+		reg  = 0x60081c;
+		mask = 0x00000003;
+		data = (dir << 1) | out;
+	} else
+	if (line < 14) {
+		line = (line - 10) * 4;
+		reg  = 0x600850;
+		mask = 0x00000003;
+		data = (dir << 1) | out;
+	} else {
+		return -EINVAL;
+	}
+
+	nv_mask(gpio, reg, mask << line, data << line);
+	return 0;
+}
+
+static void
+nv10_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
+{
+	u32 intr = nv_rd32(gpio, 0x001104);
+	u32 stat = nv_rd32(gpio, 0x001144) & intr;
+	*lo = (stat & 0xffff0000) >> 16;
+	*hi = (stat & 0x0000ffff);
+	nv_wr32(gpio, 0x001104, intr);
+}
+
+static void
+nv10_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
+{
+	u32 inte = nv_rd32(gpio, 0x001144);
+	if (type & NVKM_GPIO_LO)
+		inte = (inte & ~(mask << 16)) | (data << 16);
+	if (type & NVKM_GPIO_HI)
+		inte = (inte & ~mask) | data;
+	nv_wr32(gpio, 0x001144, inte);
+}
+
+struct nouveau_oclass *
+nv10_gpio_oclass = &(struct nouveau_gpio_impl) {
+	.base.handle = NV_SUBDEV(GPIO, 0x10),
+	.base.ofuncs = &(struct nouveau_ofuncs) {
+		.ctor = _nouveau_gpio_ctor,
+		.dtor = _nouveau_gpio_dtor,
+		.init = _nouveau_gpio_init,
+		.fini = _nouveau_gpio_fini,
+	},
+	.lines = 16,
+	.intr_stat = nv10_gpio_intr_stat,
+	.intr_mask = nv10_gpio_intr_mask,
+	.drive = nv10_gpio_drive,
+	.sense = nv10_gpio_sense,
+}.base;