drm: remove symlinks from build, use Kbuild files for lib build

The DRM build used a separate, symlinked, source tree out of a desire
to avoid Kbuild/autotools' object files conflicting.

Not only is this very annoying to maintain, but it's made worse by
having two entirely separate source file lists to maintain too.

Fixes both these issues by ditching automake (it doesn't approve of
the kernel's Kbuild syntax) in favour of custom makefiles that can
build libnvif.so from the Kbuild files.

Like the previous commit, this will never show up in the kernel tree
(it has its own version).

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

1 files changed, 0 insertions, 123 deletions

diff --git a/nvkm/subdev/bios/cstep.c b/nvkm/subdev/bios/cstep.c
deleted file mode 100644
index d3b15327f..000000000
--- a/nvkm/subdev/bios/cstep.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * Copyright 2013 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 <subdev/bios.h>
-#include <subdev/bios/bit.h>
-#include <subdev/bios/cstep.h>
-
-u16
-nvbios_cstepTe(struct nouveau_bios *bios,
-	       u8 *ver, u8 *hdr, u8 *cnt, u8 *len, u8 *xnr, u8 *xsz)
-{
-	struct bit_entry bit_P;
-	u16 cstep = 0x0000;
-
-	if (!bit_entry(bios, 'P', &bit_P)) {
-		if (bit_P.version == 2)
-			cstep = nv_ro16(bios, bit_P.offset + 0x34);
-
-		if (cstep) {
-			*ver = nv_ro08(bios, cstep + 0);
-			switch (*ver) {
-			case 0x10:
-				*hdr = nv_ro08(bios, cstep + 1);
-				*cnt = nv_ro08(bios, cstep + 3);
-				*len = nv_ro08(bios, cstep + 2);
-				*xnr = nv_ro08(bios, cstep + 5);
-				*xsz = nv_ro08(bios, cstep + 4);
-				return cstep;
-			default:
-				break;
-			}
-		}
-	}
-
-	return 0x0000;
-}
-
-u16
-nvbios_cstepEe(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr)
-{
-	u8  cnt, len, xnr, xsz;
-	u16 data = nvbios_cstepTe(bios, ver, hdr, &cnt, &len, &xnr, &xsz);
-	if (data && idx < cnt) {
-		data = data + *hdr + (idx * len);
-		*hdr = len;
-		return data;
-	}
-	return 0x0000;
-}
-
-u16
-nvbios_cstepEp(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr,
-	       struct nvbios_cstepE *info)
-{
-	u16 data = nvbios_cstepEe(bios, idx, ver, hdr);
-	memset(info, 0x00, sizeof(*info));
-	if (data) {
-		info->pstate = (nv_ro16(bios, data + 0x00) & 0x01e0) >> 5;
-		info->index   = nv_ro08(bios, data + 0x03);
-	}
-	return data;
-}
-
-u16
-nvbios_cstepEm(struct nouveau_bios *bios, u8 pstate, u8 *ver, u8 *hdr,
-	       struct nvbios_cstepE *info)
-{
-	u32 data, idx = 0;
-	while ((data = nvbios_cstepEp(bios, idx++, ver, hdr, info))) {
-		if (info->pstate == pstate)
-			break;
-	}
-	return data;
-}
-
-u16
-nvbios_cstepXe(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr)
-{
-	u8  cnt, len, xnr, xsz;
-	u16 data = nvbios_cstepTe(bios, ver, hdr, &cnt, &len, &xnr, &xsz);
-	if (data && idx < xnr) {
-		data = data + *hdr + (cnt * len) + (idx * xsz);
-		*hdr = xsz;
-		return data;
-	}
-	return 0x0000;
-}
-
-u16
-nvbios_cstepXp(struct nouveau_bios *bios, int idx, u8 *ver, u8 *hdr,
-	       struct nvbios_cstepX *info)
-{
-	u16 data = nvbios_cstepXe(bios, idx, ver, hdr);
-	memset(info, 0x00, sizeof(*info));
-	if (data) {
-		info->freq    = nv_ro16(bios, data + 0x00) * 1000;
-		info->unkn[0] = nv_ro08(bios, data + 0x02);
-		info->unkn[1] = nv_ro08(bios, data + 0x03);
-		info->voltage = nv_ro08(bios, data + 0x04);
-	}
-	return data;
-}