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, 246 deletions

diff --git a/nvkm/subdev/clock/pllnv04.c b/nvkm/subdev/clock/pllnv04.c
deleted file mode 100644
index b47d543ab..000000000
--- a/nvkm/subdev/clock/pllnv04.c
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * Copyright 1993-2003 NVIDIA, Corporation
- * Copyright 2007-2009 Stuart Bennett
- *
- * 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 AUTHORS 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 <subdev/bios.h>
-#include <subdev/bios/pll.h>
-
-#include "pll.h"
-
-static int
-getMNP_single(struct nouveau_subdev *subdev, struct nvbios_pll *info, int clk,
-	      int *pN, int *pM, int *pP)
-{
-	/* Find M, N and P for a single stage PLL
-	 *
-	 * Note that some bioses (NV3x) have lookup tables of precomputed MNP
-	 * values, but we're too lazy to use those atm
-	 *
-	 * "clk" parameter in kHz
-	 * returns calculated clock
-	 */
-	struct nouveau_bios *bios = nouveau_bios(subdev);
-	int minvco = info->vco1.min_freq, maxvco = info->vco1.max_freq;
-	int minM = info->vco1.min_m, maxM = info->vco1.max_m;
-	int minN = info->vco1.min_n, maxN = info->vco1.max_n;
-	int minU = info->vco1.min_inputfreq;
-	int maxU = info->vco1.max_inputfreq;
-	int minP = info->min_p;
-	int maxP = info->max_p_usable;
-	int crystal = info->refclk;
-	int M, N, thisP, P;
-	int clkP, calcclk;
-	int delta, bestdelta = INT_MAX;
-	int bestclk = 0;
-
-	/* this division verified for nv20, nv18, nv28 (Haiku), and nv34 */
-	/* possibly correlated with introduction of 27MHz crystal */
-	if (bios->version.major < 0x60) {
-		int cv = bios->version.chip;
-		if (cv < 0x17 || cv == 0x1a || cv == 0x20) {
-			if (clk > 250000)
-				maxM = 6;
-			if (clk > 340000)
-				maxM = 2;
-		} else if (cv < 0x40) {
-			if (clk > 150000)
-				maxM = 6;
-			if (clk > 200000)
-				maxM = 4;
-			if (clk > 340000)
-				maxM = 2;
-		}
-	}
-
-	P = 1 << maxP;
-	if ((clk * P) < minvco) {
-		minvco = clk * maxP;
-		maxvco = minvco * 2;
-	}
-
-	if (clk + clk/200 > maxvco)	/* +0.5% */
-		maxvco = clk + clk/200;
-
-	/* NV34 goes maxlog2P->0, NV20 goes 0->maxlog2P */
-	for (thisP = minP; thisP <= maxP; thisP++) {
-		P = 1 << thisP;
-		clkP = clk * P;
-
-		if (clkP < minvco)
-			continue;
-		if (clkP > maxvco)
-			return bestclk;
-
-		for (M = minM; M <= maxM; M++) {
-			if (crystal/M < minU)
-				return bestclk;
-			if (crystal/M > maxU)
-				continue;
-
-			/* add crystal/2 to round better */
-			N = (clkP * M + crystal/2) / crystal;
-
-			if (N < minN)
-				continue;
-			if (N > maxN)
-				break;
-
-			/* more rounding additions */
-			calcclk = ((N * crystal + P/2) / P + M/2) / M;
-			delta = abs(calcclk - clk);
-			/* we do an exhaustive search rather than terminating
-			 * on an optimality condition...
-			 */
-			if (delta < bestdelta) {
-				bestdelta = delta;
-				bestclk = calcclk;
-				*pN = N;
-				*pM = M;
-				*pP = thisP;
-				if (delta == 0)	/* except this one */
-					return bestclk;
-			}
-		}
-	}
-
-	return bestclk;
-}
-
-static int
-getMNP_double(struct nouveau_subdev *subdev, struct nvbios_pll *info, int clk,
-	      int *pN1, int *pM1, int *pN2, int *pM2, int *pP)
-{
-	/* Find M, N and P for a two stage PLL
-	 *
-	 * Note that some bioses (NV30+) have lookup tables of precomputed MNP
-	 * values, but we're too lazy to use those atm
-	 *
-	 * "clk" parameter in kHz
-	 * returns calculated clock
-	 */
-	int chip_version = nouveau_bios(subdev)->version.chip;
-	int minvco1 = info->vco1.min_freq, maxvco1 = info->vco1.max_freq;
-	int minvco2 = info->vco2.min_freq, maxvco2 = info->vco2.max_freq;
-	int minU1 = info->vco1.min_inputfreq, minU2 = info->vco2.min_inputfreq;
-	int maxU1 = info->vco1.max_inputfreq, maxU2 = info->vco2.max_inputfreq;
-	int minM1 = info->vco1.min_m, maxM1 = info->vco1.max_m;
-	int minN1 = info->vco1.min_n, maxN1 = info->vco1.max_n;
-	int minM2 = info->vco2.min_m, maxM2 = info->vco2.max_m;
-	int minN2 = info->vco2.min_n, maxN2 = info->vco2.max_n;
-	int maxlog2P = info->max_p_usable;
-	int crystal = info->refclk;
-	bool fixedgain2 = (minM2 == maxM2 && minN2 == maxN2);
-	int M1, N1, M2, N2, log2P;
-	int clkP, calcclk1, calcclk2, calcclkout;
-	int delta, bestdelta = INT_MAX;
-	int bestclk = 0;
-
-	int vco2 = (maxvco2 - maxvco2/200) / 2;
-	for (log2P = 0; clk && log2P < maxlog2P && clk <= (vco2 >> log2P); log2P++)
-		;
-	clkP = clk << log2P;
-
-	if (maxvco2 < clk + clk/200)	/* +0.5% */
-		maxvco2 = clk + clk/200;
-
-	for (M1 = minM1; M1 <= maxM1; M1++) {
-		if (crystal/M1 < minU1)
-			return bestclk;
-		if (crystal/M1 > maxU1)
-			continue;
-
-		for (N1 = minN1; N1 <= maxN1; N1++) {
-			calcclk1 = crystal * N1 / M1;
-			if (calcclk1 < minvco1)
-				continue;
-			if (calcclk1 > maxvco1)
-				break;
-
-			for (M2 = minM2; M2 <= maxM2; M2++) {
-				if (calcclk1/M2 < minU2)
-					break;
-				if (calcclk1/M2 > maxU2)
-					continue;
-
-				/* add calcclk1/2 to round better */
-				N2 = (clkP * M2 + calcclk1/2) / calcclk1;
-				if (N2 < minN2)
-					continue;
-				if (N2 > maxN2)
-					break;
-
-				if (!fixedgain2) {
-					if (chip_version < 0x60)
-						if (N2/M2 < 4 || N2/M2 > 10)
-							continue;
-
-					calcclk2 = calcclk1 * N2 / M2;
-					if (calcclk2 < minvco2)
-						break;
-					if (calcclk2 > maxvco2)
-						continue;
-				} else
-					calcclk2 = calcclk1;
-
-				calcclkout = calcclk2 >> log2P;
-				delta = abs(calcclkout - clk);
-				/* we do an exhaustive search rather than terminating
-				 * on an optimality condition...
-				 */
-				if (delta < bestdelta) {
-					bestdelta = delta;
-					bestclk = calcclkout;
-					*pN1 = N1;
-					*pM1 = M1;
-					*pN2 = N2;
-					*pM2 = M2;
-					*pP = log2P;
-					if (delta == 0)	/* except this one */
-						return bestclk;
-				}
-			}
-		}
-	}
-
-	return bestclk;
-}
-
-int
-nv04_pll_calc(struct nouveau_subdev *subdev, struct nvbios_pll *info, u32 freq,
-	      int *N1, int *M1, int *N2, int *M2, int *P)
-{
-	int ret;
-
-	if (!info->vco2.max_freq || !N2) {
-		ret = getMNP_single(subdev, info, freq, N1, M1, P);
-		if (N2) {
-			*N2 = 1;
-			*M2 = 1;
-		}
-	} else {
-		ret = getMNP_double(subdev, info, freq, N1, M1, N2, M2, P);
-	}
-
-	if (!ret)
-		nv_error(subdev, "unable to compute acceptable pll values\n");
-	return ret;
-}