1 /*
2  * Copyright 2012 Red Hat Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: Ben Skeggs
23  */
24 #include "nv04.h"
25 #include "channv04.h"
26 #include "regsnv04.h"
27 
28 #include <core/ramht.h>
29 #include <subdev/instmem.h>
30 
31 static const struct nv04_fifo_ramfc
32 nv17_fifo_ramfc[] = {
33 	{ 32,  0, 0x00,  0, NV04_PFIFO_CACHE1_DMA_PUT },
34 	{ 32,  0, 0x04,  0, NV04_PFIFO_CACHE1_DMA_GET },
35 	{ 32,  0, 0x08,  0, NV10_PFIFO_CACHE1_REF_CNT },
36 	{ 16,  0, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
37 	{ 16, 16, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
38 	{ 32,  0, 0x10,  0, NV04_PFIFO_CACHE1_DMA_STATE },
39 	{ 32,  0, 0x14,  0, NV04_PFIFO_CACHE1_DMA_FETCH },
40 	{ 32,  0, 0x18,  0, NV04_PFIFO_CACHE1_ENGINE },
41 	{ 32,  0, 0x1c,  0, NV04_PFIFO_CACHE1_PULL1 },
42 	{ 32,  0, 0x20,  0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE },
43 	{ 32,  0, 0x24,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP },
44 	{ 32,  0, 0x28,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT },
45 	{ 32,  0, 0x2c,  0, NV10_PFIFO_CACHE1_SEMAPHORE },
46 	{ 32,  0, 0x30,  0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE },
47 	{}
48 };
49 
50 static void
51 nv17_fifo_init(struct nvkm_fifo *base)
52 {
53 	struct nv04_fifo *fifo = nv04_fifo(base);
54 	struct nvkm_device *device = fifo->base.engine.subdev.device;
55 	struct nvkm_instmem *imem = device->imem;
56 	struct nvkm_ramht *ramht = imem->ramht;
57 	struct nvkm_memory *ramro = imem->ramro;
58 	struct nvkm_memory *ramfc = imem->ramfc;
59 
60 	nvkm_wr32(device, NV04_PFIFO_DELAY_0, 0x000000ff);
61 	nvkm_wr32(device, NV04_PFIFO_DMA_TIMESLICE, 0x0101ffff);
62 
63 	nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
64 					    ((ramht->bits - 9) << 16) |
65 					    (ramht->gpuobj->addr >> 8));
66 	nvkm_wr32(device, NV03_PFIFO_RAMRO, nvkm_memory_addr(ramro) >> 8);
67 	nvkm_wr32(device, NV03_PFIFO_RAMFC, nvkm_memory_addr(ramfc) >> 8 |
68 					    0x00010000);
69 
70 	nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH1, fifo->base.nr - 1);
71 
72 	nvkm_wr32(device, NV03_PFIFO_INTR_0, 0xffffffff);
73 	nvkm_wr32(device, NV03_PFIFO_INTR_EN_0, 0xffffffff);
74 
75 	nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH0, 1);
76 	nvkm_wr32(device, NV04_PFIFO_CACHE1_PULL0, 1);
77 	nvkm_wr32(device, NV03_PFIFO_CACHES, 1);
78 }
79 
80 static const struct nvkm_fifo_func
81 nv17_fifo = {
82 	.init = nv17_fifo_init,
83 	.intr = nv04_fifo_intr,
84 	.engine_id = nv04_fifo_engine_id,
85 	.id_engine = nv04_fifo_id_engine,
86 	.pause = nv04_fifo_pause,
87 	.start = nv04_fifo_start,
88 	.chan = {
89 		&nv17_fifo_dma_oclass,
90 		NULL
91 	},
92 };
93 
94 int
95 nv17_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
96 	      struct nvkm_fifo **pfifo)
97 {
98 	return nv04_fifo_new_(&nv17_fifo, device, type, inst, 32, nv17_fifo_ramfc, pfifo);
99 }
100