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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_sorgf119.c,v 1.3 2021/12/18 23:45:35 riastradh 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_sorgf119.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "ior.h"
     30 
     31 #include <subdev/timer.h>
     32 
     33 void
     34 gf119_sor_dp_watermark(struct nvkm_ior *sor, int head, u8 watermark)
     35 {
     36 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     37 	const u32 hoff = head * 0x800;
     38 	nvkm_mask(device, 0x616610 + hoff, 0x0800003f, 0x08000000 | watermark);
     39 }
     40 
     41 void
     42 gf119_sor_dp_audio_sym(struct nvkm_ior *sor, int head, u16 h, u32 v)
     43 {
     44 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     45 	const u32 hoff = head * 0x800;
     46 	nvkm_mask(device, 0x616620 + hoff, 0x0000ffff, h);
     47 	nvkm_mask(device, 0x616624 + hoff, 0x00ffffff, v);
     48 }
     49 
     50 void
     51 gf119_sor_dp_audio(struct nvkm_ior *sor, int head, bool enable)
     52 {
     53 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     54 	const u32 hoff = 0x800 * head;
     55 	const u32 data = 0x80000000 | (0x00000001 * enable);
     56 	const u32 mask = 0x8000000d;
     57 	nvkm_mask(device, 0x616618 + hoff, mask, data);
     58 	nvkm_msec(device, 2000,
     59 		if (!(nvkm_rd32(device, 0x616618 + hoff) & 0x80000000))
     60 			break;
     61 	);
     62 }
     63 
     64 void
     65 gf119_sor_dp_vcpi(struct nvkm_ior *sor, int head,
     66 		  u8 slot, u8 slot_nr, u16 pbn, u16 aligned)
     67 {
     68 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     69 	const u32 hoff = head * 0x800;
     70 
     71 	nvkm_mask(device, 0x616588 + hoff, 0x00003f3f, (slot_nr << 8) | slot);
     72 	nvkm_mask(device, 0x61658c + hoff, 0xffffffff, (aligned << 16) | pbn);
     73 }
     74 
     75 void
     76 gf119_sor_dp_drive(struct nvkm_ior *sor, int ln, int pc, int dc, int pe, int pu)
     77 {
     78 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     79 	const u32  loff = nv50_sor_link(sor);
     80 	const u32 shift = sor->func->dp.lanes[ln] * 8;
     81 	u32 data[4];
     82 
     83 	data[0] = nvkm_rd32(device, 0x61c118 + loff) & ~(0x000000ff << shift);
     84 	data[1] = nvkm_rd32(device, 0x61c120 + loff) & ~(0x000000ff << shift);
     85 	data[2] = nvkm_rd32(device, 0x61c130 + loff);
     86 	if ((data[2] & 0x0000ff00) < (pu << 8) || ln == 0)
     87 		data[2] = (data[2] & ~0x0000ff00) | (pu << 8);
     88 	nvkm_wr32(device, 0x61c118 + loff, data[0] | (dc << shift));
     89 	nvkm_wr32(device, 0x61c120 + loff, data[1] | (pe << shift));
     90 	nvkm_wr32(device, 0x61c130 + loff, data[2]);
     91 	data[3] = nvkm_rd32(device, 0x61c13c + loff) & ~(0x000000ff << shift);
     92 	nvkm_wr32(device, 0x61c13c + loff, data[3] | (pc << shift));
     93 }
     94 
     95 void
     96 gf119_sor_dp_pattern(struct nvkm_ior *sor, int pattern)
     97 {
     98 	struct nvkm_device *device = sor->disp->engine.subdev.device;
     99 	const u32 soff = nv50_ior_base(sor);
    100 	nvkm_mask(device, 0x61c110 + soff, 0x0f0f0f0f, 0x01010101 * pattern);
    101 }
    102 
    103 int
    104 gf119_sor_dp_links(struct nvkm_ior *sor, struct nvkm_i2c_aux *aux)
    105 {
    106 	struct nvkm_device *device = sor->disp->engine.subdev.device;
    107 	const u32 soff = nv50_ior_base(sor);
    108 	const u32 loff = nv50_sor_link(sor);
    109 	u32 dpctrl = 0x00000000;
    110 	u32 clksor = 0x00000000;
    111 
    112 	clksor |= sor->dp.bw << 18;
    113 	dpctrl |= ((1 << sor->dp.nr) - 1) << 16;
    114 	if (sor->dp.mst)
    115 		dpctrl |= 0x40000000;
    116 	if (sor->dp.ef)
    117 		dpctrl |= 0x00004000;
    118 
    119 	nvkm_mask(device, 0x612300 + soff, 0x007c0000, clksor);
    120 	nvkm_mask(device, 0x61c10c + loff, 0x401f4000, dpctrl);
    121 	return 0;
    122 }
    123 
    124 void
    125 gf119_sor_clock(struct nvkm_ior *sor)
    126 {
    127 	struct nvkm_device *device = sor->disp->engine.subdev.device;
    128 	const u32 soff = nv50_ior_base(sor);
    129 	u32 div1 = sor->asy.link == 3;
    130 	u32 div2 = sor->asy.link == 3;
    131 	if (sor->asy.proto == TMDS) {
    132 		const u32 speed = sor->tmds.high_speed ? 0x14 : 0x0a;
    133 		nvkm_mask(device, 0x612300 + soff, 0x007c0000, speed << 18);
    134 		if (sor->tmds.high_speed)
    135 			div2 = 1;
    136 	}
    137 	nvkm_mask(device, 0x612300 + soff, 0x00000707, (div2 << 8) | div1);
    138 }
    139 
    140 void
    141 gf119_sor_state(struct nvkm_ior *sor, struct nvkm_ior_state *state)
    142 {
    143 	struct nvkm_device *device = sor->disp->engine.subdev.device;
    144 	const u32 coff = (state == &sor->asy) * 0x20000 + sor->id * 0x20;
    145 	u32 ctrl = nvkm_rd32(device, 0x640200 + coff);
    146 
    147 	state->proto_evo = (ctrl & 0x00000f00) >> 8;
    148 	switch (state->proto_evo) {
    149 	case 0: state->proto = LVDS; state->link = 1; break;
    150 	case 1: state->proto = TMDS; state->link = 1; break;
    151 	case 2: state->proto = TMDS; state->link = 2; break;
    152 	case 5: state->proto = TMDS; state->link = 3; break;
    153 	case 8: state->proto =   DP; state->link = 1; break;
    154 	case 9: state->proto =   DP; state->link = 2; break;
    155 	default:
    156 		state->proto = UNKNOWN;
    157 		break;
    158 	}
    159 
    160 	state->head = ctrl & 0x0000000f;
    161 }
    162 
    163 static const struct nvkm_ior_func
    164 gf119_sor = {
    165 	.state = gf119_sor_state,
    166 	.power = nv50_sor_power,
    167 	.clock = gf119_sor_clock,
    168 	.hdmi = {
    169 		.ctrl = gf119_hdmi_ctrl,
    170 	},
    171 	.dp = {
    172 		.lanes = { 2, 1, 0, 3 },
    173 		.links = gf119_sor_dp_links,
    174 		.power = g94_sor_dp_power,
    175 		.pattern = gf119_sor_dp_pattern,
    176 		.drive = gf119_sor_dp_drive,
    177 		.vcpi = gf119_sor_dp_vcpi,
    178 		.audio = gf119_sor_dp_audio,
    179 		.audio_sym = gf119_sor_dp_audio_sym,
    180 		.watermark = gf119_sor_dp_watermark,
    181 	},
    182 	.hda = {
    183 		.hpd = gf119_hda_hpd,
    184 		.eld = gf119_hda_eld,
    185 	},
    186 };
    187 
    188 int
    189 gf119_sor_new(struct nvkm_disp *disp, int id)
    190 {
    191 	return nvkm_ior_new_(&gf119_sor, disp, SOR, id);
    192 }
    193 
    194 int
    195 gf119_sor_cnt(struct nvkm_disp *disp, unsigned long *pmask)
    196 {
    197 	struct nvkm_device *device = disp->engine.subdev.device;
    198 	*pmask = (nvkm_rd32(device, 0x612004) & 0x0000ff00) >> 8;
    199 	return 8;
    200 }
    201