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      1 /*	$NetBSD: nouveau_nvkm_engine_pm_gf100.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2013 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_pm_gf100.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $");
     28 
     29 #include "gf100.h"
     30 
     31 const struct nvkm_specsrc
     32 gf100_pbfb_sources[] = {
     33 	{ 0x10f100, (const struct nvkm_specmux[]) {
     34 			{ 0x1, 0, "unk0" },
     35 			{ 0x3f, 4, "unk4" },
     36 			{}
     37 		}, "pbfb_broadcast_pm_unk100" },
     38 	{}
     39 };
     40 
     41 const struct nvkm_specsrc
     42 gf100_pmfb_sources[] = {
     43 	{ 0x140028, (const struct nvkm_specmux[]) {
     44 			{ 0x3fff, 0, "unk0" },
     45 			{ 0x7, 16, "unk16" },
     46 			{ 0x3, 24, "unk24" },
     47 			{ 0x2, 29, "unk29" },
     48 			{}
     49 		}, "pmfb0_pm_unk28" },
     50 	{}
     51 };
     52 
     53 static const struct nvkm_specsrc
     54 gf100_l1_sources[] = {
     55 	{ 0x5044a8, (const struct nvkm_specmux[]) {
     56 			{ 0x3f, 0, "sel", true },
     57 			{}
     58 		}, "pgraph_gpc0_tpc0_l1_pm_mux" },
     59 	{}
     60 };
     61 
     62 static const struct nvkm_specsrc
     63 gf100_tex_sources[] = {
     64 	{ 0x5042c0, (const struct nvkm_specmux[]) {
     65 			{ 0xf, 0, "sel0", true },
     66 			{ 0x7, 8, "sel1", true },
     67 			{}
     68 		}, "pgraph_gpc0_tpc0_tex_pm_mux_c_d" },
     69 	{}
     70 };
     71 
     72 static const struct nvkm_specsrc
     73 gf100_unk400_sources[] = {
     74 	{ 0x50440c, (const struct nvkm_specmux[]) {
     75 			{ 0x3f, 0, "sel", true },
     76 			{}
     77 		}, "pgraph_gpc0_tpc0_unk400_pm_mux" },
     78 	{}
     79 };
     80 
     81 static const struct nvkm_specdom
     82 gf100_pm_hub[] = {
     83 	{}
     84 };
     85 
     86 const struct nvkm_specdom
     87 gf100_pm_gpc[] = {
     88 	{ 0xe0, (const struct nvkm_specsig[]) {
     89 			{ 0x00, "gpc00_l1_00", gf100_l1_sources },
     90 			{ 0x01, "gpc00_l1_01", gf100_l1_sources },
     91 			{ 0x02, "gpc00_l1_02", gf100_l1_sources },
     92 			{ 0x03, "gpc00_l1_03", gf100_l1_sources },
     93 			{ 0x05, "gpc00_l1_04", gf100_l1_sources },
     94 			{ 0x06, "gpc00_l1_05", gf100_l1_sources },
     95 			{ 0x0a, "gpc00_tex_00", gf100_tex_sources },
     96 			{ 0x0b, "gpc00_tex_01", gf100_tex_sources },
     97 			{ 0x0c, "gpc00_tex_02", gf100_tex_sources },
     98 			{ 0x0d, "gpc00_tex_03", gf100_tex_sources },
     99 			{ 0x0e, "gpc00_tex_04", gf100_tex_sources },
    100 			{ 0x0f, "gpc00_tex_05", gf100_tex_sources },
    101 			{ 0x10, "gpc00_tex_06", gf100_tex_sources },
    102 			{ 0x11, "gpc00_tex_07", gf100_tex_sources },
    103 			{ 0x12, "gpc00_tex_08", gf100_tex_sources },
    104 			{ 0x26, "gpc00_unk400_00", gf100_unk400_sources },
    105 			{}
    106 		}, &gf100_perfctr_func },
    107 	{}
    108 };
    109 
    110 static const struct nvkm_specdom
    111 gf100_pm_part[] = {
    112 	{ 0xe0, (const struct nvkm_specsig[]) {
    113 			{ 0x0f, "part00_pbfb_00", gf100_pbfb_sources },
    114 			{ 0x10, "part00_pbfb_01", gf100_pbfb_sources },
    115 			{ 0x21, "part00_pmfb_00", gf100_pmfb_sources },
    116 			{ 0x04, "part00_pmfb_01", gf100_pmfb_sources },
    117 			{ 0x00, "part00_pmfb_02", gf100_pmfb_sources },
    118 			{ 0x02, "part00_pmfb_03", gf100_pmfb_sources },
    119 			{ 0x01, "part00_pmfb_04", gf100_pmfb_sources },
    120 			{ 0x2e, "part00_pmfb_05", gf100_pmfb_sources },
    121 			{ 0x2f, "part00_pmfb_06", gf100_pmfb_sources },
    122 			{ 0x1b, "part00_pmfb_07", gf100_pmfb_sources },
    123 			{ 0x1c, "part00_pmfb_08", gf100_pmfb_sources },
    124 			{ 0x1d, "part00_pmfb_09", gf100_pmfb_sources },
    125 			{ 0x1e, "part00_pmfb_0a", gf100_pmfb_sources },
    126 			{ 0x1f, "part00_pmfb_0b", gf100_pmfb_sources },
    127 			{}
    128 		}, &gf100_perfctr_func },
    129 	{}
    130 };
    131 
    132 static void
    133 gf100_perfctr_init(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
    134 		   struct nvkm_perfctr *ctr)
    135 {
    136 	struct nvkm_device *device = pm->engine.subdev.device;
    137 	u32 log = ctr->logic_op;
    138 	u32 src = 0x00000000;
    139 	int i;
    140 
    141 	for (i = 0; i < 4; i++)
    142 		src |= ctr->signal[i] << (i * 8);
    143 
    144 	nvkm_wr32(device, dom->addr + 0x09c, 0x00040002 | (dom->mode << 3));
    145 	nvkm_wr32(device, dom->addr + 0x100, 0x00000000);
    146 	nvkm_wr32(device, dom->addr + 0x040 + (ctr->slot * 0x08), src);
    147 	nvkm_wr32(device, dom->addr + 0x044 + (ctr->slot * 0x08), log);
    148 }
    149 
    150 static void
    151 gf100_perfctr_read(struct nvkm_pm *pm, struct nvkm_perfdom *dom,
    152 		   struct nvkm_perfctr *ctr)
    153 {
    154 	struct nvkm_device *device = pm->engine.subdev.device;
    155 
    156 	switch (ctr->slot) {
    157 	case 0: ctr->ctr = nvkm_rd32(device, dom->addr + 0x08c); break;
    158 	case 1: ctr->ctr = nvkm_rd32(device, dom->addr + 0x088); break;
    159 	case 2: ctr->ctr = nvkm_rd32(device, dom->addr + 0x080); break;
    160 	case 3: ctr->ctr = nvkm_rd32(device, dom->addr + 0x090); break;
    161 	}
    162 	dom->clk = nvkm_rd32(device, dom->addr + 0x070);
    163 }
    164 
    165 static void
    166 gf100_perfctr_next(struct nvkm_pm *pm, struct nvkm_perfdom *dom)
    167 {
    168 	struct nvkm_device *device = pm->engine.subdev.device;
    169 	nvkm_wr32(device, dom->addr + 0x06c, dom->signal_nr - 0x40 + 0x27);
    170 	nvkm_wr32(device, dom->addr + 0x0ec, 0x00000011);
    171 }
    172 
    173 const struct nvkm_funcdom
    174 gf100_perfctr_func = {
    175 	.init = gf100_perfctr_init,
    176 	.read = gf100_perfctr_read,
    177 	.next = gf100_perfctr_next,
    178 };
    179 
    180 static void
    181 gf100_pm_fini(struct nvkm_pm *pm)
    182 {
    183 	struct nvkm_device *device = pm->engine.subdev.device;
    184 	nvkm_mask(device, 0x000200, 0x10000000, 0x00000000);
    185 	nvkm_mask(device, 0x000200, 0x10000000, 0x10000000);
    186 }
    187 
    188 static const struct nvkm_pm_func
    189 gf100_pm_ = {
    190 	.fini = gf100_pm_fini,
    191 };
    192 
    193 int
    194 gf100_pm_new_(const struct gf100_pm_func *func, struct nvkm_device *device,
    195 	      int index, struct nvkm_pm **ppm)
    196 {
    197 	struct nvkm_pm *pm;
    198 	u32 mask;
    199 	int ret;
    200 
    201 	if (!(pm = *ppm = kzalloc(sizeof(*pm), GFP_KERNEL)))
    202 		return -ENOMEM;
    203 
    204 	ret = nvkm_pm_ctor(&gf100_pm_, device, index, pm);
    205 	if (ret)
    206 		return ret;
    207 
    208 	/* HUB */
    209 	ret = nvkm_perfdom_new(pm, "hub", 0, 0x1b0000, 0, 0x200,
    210 			       func->doms_hub);
    211 	if (ret)
    212 		return ret;
    213 
    214 	/* GPC */
    215 	mask  = (1 << nvkm_rd32(device, 0x022430)) - 1;
    216 	mask &= ~nvkm_rd32(device, 0x022504);
    217 	mask &= ~nvkm_rd32(device, 0x022584);
    218 
    219 	ret = nvkm_perfdom_new(pm, "gpc", mask, 0x180000,
    220 			       0x1000, 0x200, func->doms_gpc);
    221 	if (ret)
    222 		return ret;
    223 
    224 	/* PART */
    225 	mask  = (1 << nvkm_rd32(device, 0x022438)) - 1;
    226 	mask &= ~nvkm_rd32(device, 0x022548);
    227 	mask &= ~nvkm_rd32(device, 0x0225c8);
    228 
    229 	ret = nvkm_perfdom_new(pm, "part", mask, 0x1a0000,
    230 			       0x1000, 0x200, func->doms_part);
    231 	if (ret)
    232 		return ret;
    233 
    234 	return 0;
    235 }
    236 
    237 static const struct gf100_pm_func
    238 gf100_pm = {
    239 	.doms_gpc = gf100_pm_gpc,
    240 	.doms_hub = gf100_pm_hub,
    241 	.doms_part = gf100_pm_part,
    242 };
    243 
    244 int
    245 gf100_pm_new(struct nvkm_device *device, int index, struct nvkm_pm **ppm)
    246 {
    247 	return gf100_pm_new_(&gf100_pm, device, index, ppm);
    248 }
    249