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 "gf100.h"
25#include "ram.h"
26
27#include <core/memory.h>
28#include <core/option.h>
29#include <subdev/therm.h>
30
31void
32gf100_fb_intr(struct nvkm_fb *base)
33{
34	struct gf100_fb *fb = gf100_fb(base);
35	struct nvkm_subdev *subdev = &fb->base.subdev;
36	struct nvkm_device *device = subdev->device;
37	u32 intr = nvkm_rd32(device, 0x000100);
38	if (intr & 0x08000000)
39		nvkm_debug(subdev, "PFFB intr\n");
40	if (intr & 0x00002000)
41		nvkm_debug(subdev, "PBFB intr\n");
42}
43
44int
45gf100_fb_oneinit(struct nvkm_fb *base)
46{
47	struct gf100_fb *fb = gf100_fb(base);
48	struct nvkm_device *device = fb->base.subdev.device;
49	int ret, size = 1 << (fb->base.page ? fb->base.page : 17);
50
51	size = nvkm_longopt(device->cfgopt, "MmuDebugBufferSize", size);
52	size = max(size, 0x1000);
53
54	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
55			      true, &fb->base.mmu_rd);
56	if (ret)
57		return ret;
58
59	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, size, 0x1000,
60			      true, &fb->base.mmu_wr);
61	if (ret)
62		return ret;
63
64	return 0;
65}
66
67int
68gf100_fb_init_page(struct nvkm_fb *fb)
69{
70	struct nvkm_device *device = fb->subdev.device;
71	switch (fb->page) {
72	case 16: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000001); break;
73	case 17: nvkm_mask(device, 0x100c80, 0x00000001, 0x00000000); break;
74	default:
75		return -EINVAL;
76	}
77	return 0;
78}
79
80void
81gf100_fb_sysmem_flush_page_init(struct nvkm_fb *fb)
82{
83	nvkm_wr32(fb->subdev.device, 0x100c10, fb->sysmem.flush_page_addr >> 8);
84}
85
86void
87gf100_fb_init(struct nvkm_fb *base)
88{
89	struct gf100_fb *fb = gf100_fb(base);
90	struct nvkm_device *device = fb->base.subdev.device;
91
92	if (base->func->clkgate_pack) {
93		nvkm_therm_clkgate_init(device->therm,
94					base->func->clkgate_pack);
95	}
96}
97
98void *
99gf100_fb_dtor(struct nvkm_fb *base)
100{
101	struct gf100_fb *fb = gf100_fb(base);
102
103	return fb;
104}
105
106int
107gf100_fb_new_(const struct nvkm_fb_func *func, struct nvkm_device *device,
108	      enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
109{
110	struct gf100_fb *fb;
111
112	if (!(fb = kzalloc(sizeof(*fb), GFP_KERNEL)))
113		return -ENOMEM;
114	nvkm_fb_ctor(func, device, type, inst, &fb->base);
115	*pfb = &fb->base;
116
117	return 0;
118}
119
120static const struct nvkm_fb_func
121gf100_fb = {
122	.dtor = gf100_fb_dtor,
123	.oneinit = gf100_fb_oneinit,
124	.init = gf100_fb_init,
125	.init_page = gf100_fb_init_page,
126	.intr = gf100_fb_intr,
127	.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
128	.ram_new = gf100_ram_new,
129	.default_bigpage = 17,
130};
131
132int
133gf100_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
134{
135	return gf100_fb_new_(&gf100_fb, device, type, inst, pfb);
136}
137