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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_sorgm200.c,v 1.3 2024/06/27 12:21:20 hannken Exp $	*/
      2 
      3 /*
      4  * Copyright 2012 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Ben Skeggs
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_sorgm200.c,v 1.3 2024/06/27 12:21:20 hannken Exp $");
     28 
     29 #include "ior.h"
     30 
     31 void
     32 gm200_sor_dp_drive(struct nvkm_ior *sor, int ln, int pc, int dc, int pe, int pu)
     33 {
     34 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     35 	const u32  loff = nv50_sor_link(sor);
     36 	const u32 shift = sor->func->dp.lanes[ln] * 8;
     37 	u32 data[4];
     38 
     39 	pu &= 0x0f;
     40 
     41 	data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
     42 	data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
     43 	data[2] = nvkm_rd32(device, 0x61c130 + loff);
     44 	if ((data[2] & 0x00000f00) < (pu << 8) || ln == 0)
     45 		data[2] = (data[2] & ~0x00000f00) | (pu << 8);
     46 	nvkm_wr32(device, 0x61c118 + loff, data[0] | (dc << shift));
     47 	nvkm_wr32(device, 0x61c120 + loff, data[1] | (pe << shift));
     48 	nvkm_wr32(device, 0x61c130 + loff, data[2]);
     49 	data[3] = nvkm_rd32(device, 0x61c13c + loff) & ~(0x000000ff << shift);
     50 	nvkm_wr32(device, 0x61c13c + loff, data[3] | (pc << shift));
     51 }
     52 
     53 void
     54 gm200_sor_route_set(struct nvkm_outp *outp, struct nvkm_ior *ior)
     55 {
     56 	struct nvkm_device *device = outp->disp->engine.subdev.device;
     57 	const u32 moff = __ffs(outp->info.or) * 0x100;
     58 	const u32  sor = ior ? ior->id + 1 : 0;
     59 	u32 link = ior ? (ior->asy.link == 2) : 0;
     60 
     61 	if (outp->info.sorconf.link & 1) {
     62 		nvkm_mask(device, 0x612308 + moff, 0x0000001f, link << 4 | sor);
     63 		link++;
     64 	}
     65 
     66 	if (outp->info.sorconf.link & 2)
     67 		nvkm_mask(device, 0x612388 + moff, 0x0000001f, link << 4 | sor);
     68 }
     69 
     70 int
     71 gm200_sor_route_get(struct nvkm_outp *outp, int *link)
     72 {
     73 	struct nvkm_device *device = outp->disp->engine.subdev.device;
     74 	const int sublinks = outp->info.sorconf.link;
     75 	int lnk[2], sor[2], m, s;
     76 
     77 	sor[0] = sor[1] = 0;	/* GCC 12.3 maybe-uninitialized */
     78 	for (*link = 0, m = __ffs(outp->info.or) * 2, s = 0; s < 2; m++, s++) {
     79 		if (sublinks & BIT(s)) {
     80 			u32 data = nvkm_rd32(device, 0x612308 + (m * 0x80));
     81 			lnk[s] = (data & 0x00000010) >> 4;
     82 			sor[s] = (data & 0x0000000f);
     83 			if (!sor[s])
     84 				return -1;
     85 			*link |= lnk[s];
     86 		}
     87 	}
     88 
     89 	if (sublinks == 3) {
     90 		if (sor[0] != sor[1] || WARN_ON(lnk[0] || !lnk[1]))
     91 			return -1;
     92 	}
     93 
     94 	return ((sublinks & 1) ? sor[0] : sor[1]) - 1;
     95 }
     96 
     97 static const struct nvkm_ior_func
     98 gm200_sor = {
     99 	.route = {
    100 		.get = gm200_sor_route_get,
    101 		.set = gm200_sor_route_set,
    102 	},
    103 	.state = gf119_sor_state,
    104 	.power = nv50_sor_power,
    105 	.clock = gf119_sor_clock,
    106 	.hdmi = {
    107 		.ctrl = gk104_hdmi_ctrl,
    108 		.scdc = gm200_hdmi_scdc,
    109 	},
    110 	.dp = {
    111 		.lanes = { 0, 1, 2, 3 },
    112 		.links = gf119_sor_dp_links,
    113 		.power = g94_sor_dp_power,
    114 		.pattern = gm107_sor_dp_pattern,
    115 		.drive = gm200_sor_dp_drive,
    116 		.vcpi = gf119_sor_dp_vcpi,
    117 		.audio = gf119_sor_dp_audio,
    118 		.audio_sym = gf119_sor_dp_audio_sym,
    119 		.watermark = gf119_sor_dp_watermark,
    120 	},
    121 	.hda = {
    122 		.hpd = gf119_hda_hpd,
    123 		.eld = gf119_hda_eld,
    124 	},
    125 };
    126 
    127 int
    128 gm200_sor_new(struct nvkm_disp *disp, int id)
    129 {
    130 	return nvkm_ior_new_(&gm200_sor, disp, SOR, id);
    131 }
    132