nv04.c

  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#define nv04_instmem(p) container_of((p), struct nv04_instmem, base)
 25#include "priv.h"
 26
 27#include <core/ramht.h>
 28#include <subdev/bar.h>
 29
 30struct nv04_instmem {
 31	struct nvkm_instmem base;
 32	struct nvkm_mm heap;
 33};
 34
 35/******************************************************************************
 36 * instmem object implementation
 37 *****************************************************************************/
 38#define nv04_instobj(p) container_of((p), struct nv04_instobj, base.memory)
 39
 40struct nv04_instobj {
 41	struct nvkm_instobj base;
 42	struct nv04_instmem *imem;
 43	struct nvkm_mm_node *node;
 44};
 45
 46static void
 47nv04_instobj_wr32(struct nvkm_memory *memory, u64 offset, u32 data)
 48{
 49	struct nv04_instobj *iobj = nv04_instobj(memory);
 50	struct nvkm_device *device = iobj->imem->base.subdev.device;
 51	nvkm_wr32(device, 0x700000 + iobj->node->offset + offset, data);
 52}
 53
 54static u32
 55nv04_instobj_rd32(struct nvkm_memory *memory, u64 offset)
 56{
 57	struct nv04_instobj *iobj = nv04_instobj(memory);
 58	struct nvkm_device *device = iobj->imem->base.subdev.device;
 59	return nvkm_rd32(device, 0x700000 + iobj->node->offset + offset);
 60}
 61
 62static const struct nvkm_memory_ptrs
 63nv04_instobj_ptrs = {
 64	.rd32 = nv04_instobj_rd32,
 65	.wr32 = nv04_instobj_wr32,
 66};
 67
 68static void
 69nv04_instobj_release(struct nvkm_memory *memory)
 70{
 71}
 72
 73static void __iomem *
 74nv04_instobj_acquire(struct nvkm_memory *memory)
 75{
 76	struct nv04_instobj *iobj = nv04_instobj(memory);
 77	struct nvkm_device *device = iobj->imem->base.subdev.device;
 78	return device->pri + 0x700000 + iobj->node->offset;
 79}
 80
 81static u64
 82nv04_instobj_size(struct nvkm_memory *memory)
 83{
 84	return nv04_instobj(memory)->node->length;
 85}
 86
 87static u64
 88nv04_instobj_addr(struct nvkm_memory *memory)
 89{
 90	return nv04_instobj(memory)->node->offset;
 91}
 92
 93static enum nvkm_memory_target
 94nv04_instobj_target(struct nvkm_memory *memory)
 95{
 96	return NVKM_MEM_TARGET_INST;
 97}
 98
 99static void *
100nv04_instobj_dtor(struct nvkm_memory *memory)
101{
102	struct nv04_instobj *iobj = nv04_instobj(memory);
103	mutex_lock(&iobj->imem->base.mutex);
104	nvkm_mm_free(&iobj->imem->heap, &iobj->node);
105	mutex_unlock(&iobj->imem->base.mutex);
106	nvkm_instobj_dtor(&iobj->imem->base, &iobj->base);
107	return iobj;
108}
109
110static const struct nvkm_memory_func
111nv04_instobj_func = {
112	.dtor = nv04_instobj_dtor,
113	.target = nv04_instobj_target,
114	.size = nv04_instobj_size,
115	.addr = nv04_instobj_addr,
116	.acquire = nv04_instobj_acquire,
117	.release = nv04_instobj_release,
118};
119
120static int
121nv04_instobj_new(struct nvkm_instmem *base, u32 size, u32 align, bool zero,
122		 struct nvkm_memory **pmemory)
123{
124	struct nv04_instmem *imem = nv04_instmem(base);
125	struct nv04_instobj *iobj;
126	int ret;
127
128	if (!(iobj = kzalloc(sizeof(*iobj), GFP_KERNEL)))
129		return -ENOMEM;
130	*pmemory = &iobj->base.memory;
131
132	nvkm_instobj_ctor(&nv04_instobj_func, &imem->base, &iobj->base);
133	iobj->base.memory.ptrs = &nv04_instobj_ptrs;
134	iobj->imem = imem;
135
136	mutex_lock(&imem->base.mutex);
137	ret = nvkm_mm_head(&imem->heap, 0, 1, size, size, align ? align : 1, &iobj->node);
138	mutex_unlock(&imem->base.mutex);
139	return ret;
140}
141
142/******************************************************************************
143 * instmem subdev implementation
144 *****************************************************************************/
145
146static u32
147nv04_instmem_rd32(struct nvkm_instmem *imem, u32 addr)
148{
149	return nvkm_rd32(imem->subdev.device, 0x700000 + addr);
150}
151
152static void
153nv04_instmem_wr32(struct nvkm_instmem *imem, u32 addr, u32 data)
154{
155	nvkm_wr32(imem->subdev.device, 0x700000 + addr, data);
156}
157
158void
159nv04_instmem_resume(struct nvkm_instmem *imem)
160{
161	struct nvkm_instobj *iobj;
162
163	list_for_each_entry(iobj, &imem->boot, head) {
164		if (iobj->suspend)
165			nvkm_instobj_load(iobj);
166	}
167
168	nvkm_bar_bar2_init(imem->subdev.device);
169
170	list_for_each_entry(iobj, &imem->list, head) {
171		if (iobj->suspend)
172			nvkm_instobj_load(iobj);
173	}
174}
175
176int
177nv04_instmem_suspend(struct nvkm_instmem *imem)
178{
179	struct nvkm_instobj *iobj;
180
181	list_for_each_entry(iobj, &imem->list, head) {
182		if (iobj->preserve) {
183			int ret = nvkm_instobj_save(iobj);
184			if (ret)
185				return ret;
186		}
187	}
188
189	nvkm_bar_bar2_fini(imem->subdev.device);
190
191	list_for_each_entry(iobj, &imem->boot, head) {
192		int ret = nvkm_instobj_save(iobj);
193		if (ret)
194			return ret;
195	}
196
197	return 0;
198}
199
200static int
201nv04_instmem_oneinit(struct nvkm_instmem *base)
202{
203	struct nv04_instmem *imem = nv04_instmem(base);
204	struct nvkm_device *device = imem->base.subdev.device;
205	int ret;
206
207	/* PRAMIN aperture maps over the end of VRAM, reserve it */
208	imem->base.reserved = 512 * 1024;
209
210	ret = nvkm_mm_init(&imem->heap, 0, 0, imem->base.reserved, 1);
211	if (ret)
212		return ret;
213
214	/* 0x00000-0x10000: reserve for probable vbios image */
215	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x10000, 0, false,
216			      &imem->base.vbios);
217	if (ret)
218		return ret;
219
220	/* 0x10000-0x18000: reserve for RAMHT */
221	ret = nvkm_ramht_new(device, 0x08000, 0, NULL, &imem->base.ramht);
222	if (ret)
223		return ret;
224
225	/* 0x18000-0x18800: reserve for RAMFC (enough for 32 nv30 channels) */
226	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00800, 0, true,
227			      &imem->base.ramfc);
228	if (ret)
229		return ret;
230
231	/* 0x18800-0x18a00: reserve for RAMRO */
232	ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x00200, 0, false,
233			      &imem->base.ramro);
234	if (ret)
235		return ret;
236
237	return 0;
238}
239
240static void *
241nv04_instmem_dtor(struct nvkm_instmem *base)
242{
243	struct nv04_instmem *imem = nv04_instmem(base);
244	nvkm_memory_unref(&imem->base.ramfc);
245	nvkm_memory_unref(&imem->base.ramro);
246	nvkm_ramht_del(&imem->base.ramht);
247	nvkm_memory_unref(&imem->base.vbios);
248	nvkm_mm_fini(&imem->heap);
249	return imem;
250}
251
252static const struct nvkm_instmem_func
253nv04_instmem = {
254	.dtor = nv04_instmem_dtor,
255	.oneinit = nv04_instmem_oneinit,
256	.suspend = nv04_instmem_suspend,
257	.resume = nv04_instmem_resume,
258	.rd32 = nv04_instmem_rd32,
259	.wr32 = nv04_instmem_wr32,
260	.memory_new = nv04_instobj_new,
261	.zero = false,
262};
263
264int
265nv04_instmem_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
266		 struct nvkm_instmem **pimem)
267{
268	struct nv04_instmem *imem;
269
270	if (!(imem = kzalloc(sizeof(*imem), GFP_KERNEL)))
271		return -ENOMEM;
272	nvkm_instmem_ctor(&nv04_instmem, device, type, inst, &imem->base);
273	*pimem = &imem->base;
274	return 0;
275}