1 /* drm_agpsupport.h -- DRM support for AGP/GART backend -*- linux-c -*-
2 * Created: Mon Dec 13 09:56:45 1999 by faith@precisioninsight.com
4 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
5 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice (including the next
16 * paragraph) shall be included in all copies or substantial portions of the
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
23 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
24 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
25 * OTHER DEALINGS IN THE SOFTWARE.
28 * Rickard E. (Rik) Faith <faith@valinux.com>
29 * Gareth Hughes <gareth@valinux.com>
30 * $FreeBSD: src/sys/dev/drm/drm_agpsupport.h,v 1.2.2.1 2003/04/26 07:05:28 anholt Exp $
31 * $DragonFly: src/sys/dev/drm/Attic/drm_agpsupport.h,v 1.2 2003/06/17 04:28:24 dillon Exp $
34 #include "dev/drm/drmP.h"
36 int DRM(agp_info)(DRM_IOCTL_ARGS)
39 struct agp_info *kern;
42 if (!dev->agp || !dev->agp->acquired)
45 kern = &dev->agp->info;
46 agp_get_info(dev->agp->agpdev, kern);
47 info.agp_version_major = 1;
48 info.agp_version_minor = 0;
49 info.mode = kern->ai_mode;
50 info.aperture_base = kern->ai_aperture_base;
51 info.aperture_size = kern->ai_aperture_size;
52 info.memory_allowed = kern->ai_memory_allowed;
53 info.memory_used = kern->ai_memory_used;
54 info.id_vendor = kern->ai_devid & 0xffff;
55 info.id_device = kern->ai_devid >> 16;
57 *(drm_agp_info_t *) data = info;
61 int DRM(agp_acquire)(DRM_IOCTL_ARGS)
66 if (!dev->agp || dev->agp->acquired)
68 retcode = agp_acquire(dev->agp->agpdev);
71 dev->agp->acquired = 1;
75 int DRM(agp_release)(DRM_IOCTL_ARGS)
79 if (!dev->agp || !dev->agp->acquired)
81 agp_release(dev->agp->agpdev);
82 dev->agp->acquired = 0;
87 void DRM(agp_do_release)(void)
91 agpdev = DRM_AGP_FIND_DEVICE();
96 int DRM(agp_enable)(DRM_IOCTL_ARGS)
101 if (!dev->agp || !dev->agp->acquired)
104 mode = *(drm_agp_mode_t *) data;
106 dev->agp->mode = mode.mode;
107 agp_enable(dev->agp->agpdev, mode.mode);
108 dev->agp->base = dev->agp->info.ai_aperture_base;
109 dev->agp->enabled = 1;
113 int DRM(agp_alloc)(DRM_IOCTL_ARGS)
116 drm_agp_buffer_t request;
117 drm_agp_mem_t *entry;
121 struct agp_memory_info info;
123 if (!dev->agp || !dev->agp->acquired)
126 request = *(drm_agp_buffer_t *) data;
128 if (!(entry = DRM(alloc)(sizeof(*entry), DRM_MEM_AGPLISTS)))
131 bzero(entry, sizeof(*entry));
133 pages = (request.size + PAGE_SIZE - 1) / PAGE_SIZE;
134 type = (u_int32_t) request.type;
136 if (!(handle = DRM(alloc_agp)(pages, type))) {
137 DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
141 entry->handle = handle;
143 entry->pages = pages;
145 entry->next = dev->agp->memory;
146 if (dev->agp->memory)
147 dev->agp->memory->prev = entry;
148 dev->agp->memory = entry;
150 agp_memory_info(dev->agp->agpdev, entry->handle, &info);
152 request.handle = (unsigned long) entry->handle;
153 request.physical = info.ami_physical;
155 *(drm_agp_buffer_t *) data = request;
160 static drm_agp_mem_t * DRM(agp_lookup_entry)(drm_device_t *dev, void *handle)
162 drm_agp_mem_t *entry;
164 for (entry = dev->agp->memory; entry; entry = entry->next) {
165 if (entry->handle == handle) return entry;
170 int DRM(agp_unbind)(DRM_IOCTL_ARGS)
173 drm_agp_binding_t request;
174 drm_agp_mem_t *entry;
177 if (!dev->agp || !dev->agp->acquired)
179 request = *(drm_agp_binding_t *) data;
180 if (!(entry = DRM(agp_lookup_entry)(dev, (void *) request.handle)))
182 if (!entry->bound) return EINVAL;
183 retcode=DRM(unbind_agp)(entry->handle);
193 int DRM(agp_bind)(DRM_IOCTL_ARGS)
196 drm_agp_binding_t request;
197 drm_agp_mem_t *entry;
201 DRM_DEBUG("agp_bind, page_size=%x\n", PAGE_SIZE);
202 if (!dev->agp || !dev->agp->acquired)
204 request = *(drm_agp_binding_t *) data;
205 if (!(entry = DRM(agp_lookup_entry)(dev, (void *) request.handle)))
207 if (entry->bound) return EINVAL;
208 page = (request.offset + PAGE_SIZE - 1) / PAGE_SIZE;
209 if ((retcode = DRM(bind_agp)(entry->handle, page)))
211 entry->bound = dev->agp->base + (page << PAGE_SHIFT);
215 int DRM(agp_free)(DRM_IOCTL_ARGS)
218 drm_agp_buffer_t request;
219 drm_agp_mem_t *entry;
221 if (!dev->agp || !dev->agp->acquired)
223 request = *(drm_agp_buffer_t *) data;
224 if (!(entry = DRM(agp_lookup_entry)(dev, (void*) request.handle)))
227 DRM(unbind_agp)(entry->handle);
230 entry->prev->next = entry->next;
232 dev->agp->memory = entry->next;
234 entry->next->prev = entry->prev;
235 DRM(free_agp)(entry->handle, entry->pages);
236 DRM(free)(entry, sizeof(*entry), DRM_MEM_AGPLISTS);
240 drm_agp_head_t *DRM(agp_init)(void)
243 drm_agp_head_t *head = NULL;
244 int agp_available = 1;
246 agpdev = DRM_AGP_FIND_DEVICE();
250 DRM_DEBUG("agp_available = %d\n", agp_available);
253 if (!(head = DRM(alloc)(sizeof(*head), DRM_MEM_AGPLISTS)))
255 bzero((void *)head, sizeof(*head));
256 head->agpdev = agpdev;
257 agp_get_info(agpdev, &head->info);
260 switch (head->agp_info.chipset) {
261 case INTEL_GENERIC: head->chipset = "Intel"; break;
262 case INTEL_LX: head->chipset = "Intel 440LX"; break;
263 case INTEL_BX: head->chipset = "Intel 440BX"; break;
264 case INTEL_GX: head->chipset = "Intel 440GX"; break;
265 case INTEL_I810: head->chipset = "Intel i810"; break;
266 case VIA_GENERIC: head->chipset = "VIA"; break;
267 case VIA_VP3: head->chipset = "VIA VP3"; break;
268 case VIA_MVP3: head->chipset = "VIA MVP3"; break;
269 case VIA_APOLLO_PRO: head->chipset = "VIA Apollo Pro"; break;
270 case SIS_GENERIC: head->chipset = "SiS"; break;
271 case AMD_GENERIC: head->chipset = "AMD"; break;
272 case AMD_IRONGATE: head->chipset = "AMD Irongate"; break;
273 case ALI_GENERIC: head->chipset = "ALi"; break;
274 case ALI_M1541: head->chipset = "ALi M1541"; break;
278 DRM_INFO("AGP at 0x%08lx %dMB\n",
279 (long)head->info.ai_aperture_base,
280 (int)(head->info.ai_aperture_size >> 20));
285 void DRM(agp_uninit)(void)
287 /* FIXME: What goes here */
291 agp_memory *DRM(agp_allocate_memory)(size_t pages, u32 type)
295 agpdev = DRM_AGP_FIND_DEVICE();
299 return agp_alloc_memory(agpdev, type, pages << AGP_PAGE_SHIFT);
302 int DRM(agp_free_memory)(agp_memory *handle)
306 agpdev = DRM_AGP_FIND_DEVICE();
307 if (!agpdev || !handle)
310 agp_free_memory(agpdev, handle);
314 int DRM(agp_bind_memory)(agp_memory *handle, off_t start)
318 agpdev = DRM_AGP_FIND_DEVICE();
319 if (!agpdev || !handle)
322 return agp_bind_memory(agpdev, handle, start * PAGE_SIZE);
325 int DRM(agp_unbind_memory)(agp_memory *handle)
329 agpdev = DRM_AGP_FIND_DEVICE();
330 if (!agpdev || !handle)
333 return agp_unbind_memory(agpdev, handle);