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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_corenv50.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_corenv50.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "channv50.h"
     30 
     31 #include <core/client.h>
     32 #include <subdev/timer.h>
     33 
     34 #include <nvif/cl507d.h>
     35 #include <nvif/unpack.h>
     36 
     37 int
     38 nv50_disp_core_new_(const struct nv50_disp_chan_func *func,
     39 		    const struct nv50_disp_chan_mthd *mthd,
     40 		    struct nv50_disp *disp, int chid,
     41 		    const struct nvkm_oclass *oclass, void *argv, u32 argc,
     42 		    struct nvkm_object **pobject)
     43 {
     44 	union {
     45 		struct nv50_disp_core_channel_dma_v0 v0;
     46 	} *args = argv;
     47 	struct nvkm_object *parent = oclass->parent;
     48 	u64 push;
     49 	int ret = -ENOSYS;
     50 
     51 	nvif_ioctl(parent, "create disp core channel dma size %d\n", argc);
     52 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     53 		nvif_ioctl(parent, "create disp core channel dma vers %d "
     54 				   "pushbuf %016"PRIx64"\n",
     55 			   args->v0.version, args->v0.pushbuf);
     56 		push = args->v0.pushbuf;
     57 	} else
     58 		return ret;
     59 
     60 	return nv50_disp_dmac_new_(func, mthd, disp, chid, 0,
     61 				   push, oclass, pobject);
     62 }
     63 
     64 const struct nv50_disp_mthd_list
     65 nv50_disp_core_mthd_base = {
     66 	.mthd = 0x0000,
     67 	.addr = 0x000000,
     68 	.data = {
     69 		{ 0x0080, 0x000000 },
     70 		{ 0x0084, 0x610bb8 },
     71 		{ 0x0088, 0x610b9c },
     72 		{ 0x008c, 0x000000 },
     73 		{}
     74 	}
     75 };
     76 
     77 static const struct nv50_disp_mthd_list
     78 nv50_disp_core_mthd_dac = {
     79 	.mthd = 0x0080,
     80 	.addr = 0x000008,
     81 	.data = {
     82 		{ 0x0400, 0x610b58 },
     83 		{ 0x0404, 0x610bdc },
     84 		{ 0x0420, 0x610828 },
     85 		{}
     86 	}
     87 };
     88 
     89 const struct nv50_disp_mthd_list
     90 nv50_disp_core_mthd_sor = {
     91 	.mthd = 0x0040,
     92 	.addr = 0x000008,
     93 	.data = {
     94 		{ 0x0600, 0x610b70 },
     95 		{}
     96 	}
     97 };
     98 
     99 const struct nv50_disp_mthd_list
    100 nv50_disp_core_mthd_pior = {
    101 	.mthd = 0x0040,
    102 	.addr = 0x000008,
    103 	.data = {
    104 		{ 0x0700, 0x610b80 },
    105 		{}
    106 	}
    107 };
    108 
    109 static const struct nv50_disp_mthd_list
    110 nv50_disp_core_mthd_head = {
    111 	.mthd = 0x0400,
    112 	.addr = 0x000540,
    113 	.data = {
    114 		{ 0x0800, 0x610ad8 },
    115 		{ 0x0804, 0x610ad0 },
    116 		{ 0x0808, 0x610a48 },
    117 		{ 0x080c, 0x610a78 },
    118 		{ 0x0810, 0x610ac0 },
    119 		{ 0x0814, 0x610af8 },
    120 		{ 0x0818, 0x610b00 },
    121 		{ 0x081c, 0x610ae8 },
    122 		{ 0x0820, 0x610af0 },
    123 		{ 0x0824, 0x610b08 },
    124 		{ 0x0828, 0x610b10 },
    125 		{ 0x082c, 0x610a68 },
    126 		{ 0x0830, 0x610a60 },
    127 		{ 0x0834, 0x000000 },
    128 		{ 0x0838, 0x610a40 },
    129 		{ 0x0840, 0x610a24 },
    130 		{ 0x0844, 0x610a2c },
    131 		{ 0x0848, 0x610aa8 },
    132 		{ 0x084c, 0x610ab0 },
    133 		{ 0x0860, 0x610a84 },
    134 		{ 0x0864, 0x610a90 },
    135 		{ 0x0868, 0x610b18 },
    136 		{ 0x086c, 0x610b20 },
    137 		{ 0x0870, 0x610ac8 },
    138 		{ 0x0874, 0x610a38 },
    139 		{ 0x0880, 0x610a58 },
    140 		{ 0x0884, 0x610a9c },
    141 		{ 0x08a0, 0x610a70 },
    142 		{ 0x08a4, 0x610a50 },
    143 		{ 0x08a8, 0x610ae0 },
    144 		{ 0x08c0, 0x610b28 },
    145 		{ 0x08c4, 0x610b30 },
    146 		{ 0x08c8, 0x610b40 },
    147 		{ 0x08d4, 0x610b38 },
    148 		{ 0x08d8, 0x610b48 },
    149 		{ 0x08dc, 0x610b50 },
    150 		{ 0x0900, 0x610a18 },
    151 		{ 0x0904, 0x610ab8 },
    152 		{}
    153 	}
    154 };
    155 
    156 static const struct nv50_disp_chan_mthd
    157 nv50_disp_core_mthd = {
    158 	.name = "Core",
    159 	.addr = 0x000000,
    160 	.prev = 0x000004,
    161 	.data = {
    162 		{ "Global", 1, &nv50_disp_core_mthd_base },
    163 		{    "DAC", 3, &nv50_disp_core_mthd_dac  },
    164 		{    "SOR", 2, &nv50_disp_core_mthd_sor  },
    165 		{   "PIOR", 3, &nv50_disp_core_mthd_pior },
    166 		{   "HEAD", 2, &nv50_disp_core_mthd_head },
    167 		{}
    168 	}
    169 };
    170 
    171 static void
    172 nv50_disp_core_fini(struct nv50_disp_chan *chan)
    173 {
    174 	struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
    175 	struct nvkm_device *device = subdev->device;
    176 
    177 	/* deactivate channel */
    178 	nvkm_mask(device, 0x610200, 0x00000010, 0x00000000);
    179 	nvkm_mask(device, 0x610200, 0x00000003, 0x00000000);
    180 	if (nvkm_msec(device, 2000,
    181 		if (!(nvkm_rd32(device, 0x610200) & 0x001e0000))
    182 			break;
    183 	) < 0) {
    184 		nvkm_error(subdev, "core fini: %08x\n",
    185 			   nvkm_rd32(device, 0x610200));
    186 	}
    187 }
    188 
    189 static int
    190 nv50_disp_core_init(struct nv50_disp_chan *chan)
    191 {
    192 	struct nvkm_subdev *subdev = &chan->disp->base.engine.subdev;
    193 	struct nvkm_device *device = subdev->device;
    194 
    195 	/* attempt to unstick channel from some unknown state */
    196 	if ((nvkm_rd32(device, 0x610200) & 0x009f0000) == 0x00020000)
    197 		nvkm_mask(device, 0x610200, 0x00800000, 0x00800000);
    198 	if ((nvkm_rd32(device, 0x610200) & 0x003f0000) == 0x00030000)
    199 		nvkm_mask(device, 0x610200, 0x00600000, 0x00600000);
    200 
    201 	/* initialise channel for dma command submission */
    202 	nvkm_wr32(device, 0x610204, chan->push);
    203 	nvkm_wr32(device, 0x610208, 0x00010000);
    204 	nvkm_wr32(device, 0x61020c, 0x00000000);
    205 	nvkm_mask(device, 0x610200, 0x00000010, 0x00000010);
    206 	nvkm_wr32(device, 0x640000, 0x00000000);
    207 	nvkm_wr32(device, 0x610200, 0x01000013);
    208 
    209 	/* wait for it to go inactive */
    210 	if (nvkm_msec(device, 2000,
    211 		if (!(nvkm_rd32(device, 0x610200) & 0x80000000))
    212 			break;
    213 	) < 0) {
    214 		nvkm_error(subdev, "core init: %08x\n",
    215 			   nvkm_rd32(device, 0x610200));
    216 		return -EBUSY;
    217 	}
    218 
    219 	return 0;
    220 }
    221 
    222 const struct nv50_disp_chan_func
    223 nv50_disp_core_func = {
    224 	.init = nv50_disp_core_init,
    225 	.fini = nv50_disp_core_fini,
    226 	.intr = nv50_disp_chan_intr,
    227 	.user = nv50_disp_chan_user,
    228 	.bind = nv50_disp_dmac_bind,
    229 };
    230 
    231 int
    232 nv50_disp_core_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
    233 		   struct nv50_disp *disp, struct nvkm_object **pobject)
    234 {
    235 	return nv50_disp_core_new_(&nv50_disp_core_func, &nv50_disp_core_mthd,
    236 				   disp, 0, oclass, argv, argc, pobject);
    237 }
    238