1/* sis_mm.c -- Private header for Direct Rendering Manager -*- linux-c -*- 2 * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw 3 * 4 * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan. 5 * All rights reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the next 15 * paragraph) shall be included in all copies or substantial portions of the 16 * Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 19 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 24 * DEALINGS IN THE SOFTWARE. 25 * 26 * Authors: 27 * Sung-Ching Lin <sclin@sis.com.tw> 28 * 29 */ 30 31#include <sys/cdefs.h> 32__FBSDID("$FreeBSD$"); 33 34#if defined(__linux__) && defined(CONFIG_FB_SIS) 35#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0) 36#include <video/sisfb.h> 37#else 38#include <linux/sisfb.h> 39#endif 40#endif 41#include "dev/drm/drmP.h" 42#include "dev/drm/sis_drm.h" 43#include "dev/drm/sis_drv.h" 44#include "dev/drm/sis_ds.h" 45 46#define MAX_CONTEXT 100 47#define VIDEO_TYPE 0 48#define AGP_TYPE 1 49 50typedef struct { 51 int used; 52 int context; 53 set_t *sets[2]; /* 0 for video, 1 for AGP */ 54} sis_context_t; 55 56static sis_context_t global_ppriv[MAX_CONTEXT]; 57 58static int add_alloc_set(int context, int type, unsigned int val) 59{ 60 int i, retval = 0; 61 62 for (i = 0; i < MAX_CONTEXT; i++) { 63 if (global_ppriv[i].used && global_ppriv[i].context == context) { 64 retval = setAdd(global_ppriv[i].sets[type], val); 65 break; 66 } 67 } 68 return retval; 69} 70 71static int del_alloc_set(int context, int type, unsigned int val) 72{ 73 int i, retval = 0; 74 75 for (i = 0; i < MAX_CONTEXT; i++) { 76 if (global_ppriv[i].used && global_ppriv[i].context == context) { 77 retval = setDel(global_ppriv[i].sets[type], val); 78 break; 79 } 80 } 81 return retval; 82} 83 84/* fb management via fb device */ 85#if defined(__linux__) && defined(CONFIG_FB_SIS) 86 87static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) 88{ 89 return 0; 90} 91 92static int sis_fb_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv) 93{ 94 drm_sis_mem_t *fb = data; 95 struct sis_memreq req; 96 int retval = 0; 97 98 req.size = fb->size; 99 sis_malloc(&req); 100 if (req.offset) { 101 /* TODO */ 102 fb->offset = req.offset; 103 fb->free = req.offset; 104 if (!add_alloc_set(fb->context, VIDEO_TYPE, fb->free)) { 105 DRM_DEBUG("adding to allocation set fails\n"); 106 sis_free(req.offset); 107 retval = -EINVAL; 108 } 109 } else { 110 fb->offset = 0; 111 fb->size = 0; 112 fb->free = 0; 113 } 114 115 DRM_DEBUG("alloc fb, size = %d, offset = %ld\n", fb->size, req.offset); 116 117 return retval; 118} 119 120static int sis_fb_free(struct drm_device *dev, void *data, struct drm_file *file_priv) 121{ 122 drm_sis_mem_t fb; 123 int retval = 0; 124 125 if (!fb->free) 126 return -EINVAL; 127 128 if (!del_alloc_set(fb->context, VIDEO_TYPE, fb->free)) 129 retval = -EINVAL; 130 sis_free(fb->free); 131 132 DRM_DEBUG("free fb, offset = 0x%lx\n", fb->free); 133 134 return retval; 135} 136 137#else 138 139/* Called by the X Server to initialize the FB heap. Allocations will fail 140 * unless this is called. Offset is the beginning of the heap from the 141 * framebuffer offset (MaxXFBMem in XFree86). 142 * 143 * Memory layout according to Thomas Winischofer: 144 * |------------------|DDDDDDDDDDDDDDDDDDDDDDDDDDDDD|HHHH|CCCCCCCCCCC| 145 * 146 * X driver/sisfb HW- Command- 147 * framebuffer memory DRI heap Cursor queue 148 */ 149static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv) 150{ 151 drm_sis_private_t *dev_priv = dev->dev_private; 152 drm_sis_fb_t *fb = data; 153 154 if (dev_priv == NULL) { 155 dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), 156 DRM_MEM_DRIVER); 157 dev_priv = dev->dev_private; 158 if (dev_priv == NULL) 159 return ENOMEM; 160 } 161 162 if (dev_priv->FBHeap != NULL) 163 return -EINVAL; 164 165 dev_priv->FBHeap = mmInit(fb->offset, fb->size); 166 167 DRM_DEBUG("offset = %u, size = %u", fb->offset, fb->size); 168 169 return 0; 170} 171 172static int sis_fb_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv) 173{ 174 drm_sis_private_t *dev_priv = dev->dev_private; 175 drm_sis_mem_t *fb = data; 176 PMemBlock block; 177 int retval = 0; 178 179 if (dev_priv == NULL || dev_priv->FBHeap == NULL) 180 return -EINVAL; 181 182 block = mmAllocMem(dev_priv->FBHeap, fb->size, 0, 0); 183 if (block) { 184 /* TODO */ 185 fb->offset = block->ofs; 186 fb->free = (unsigned long)block; 187 if (!add_alloc_set(fb->context, VIDEO_TYPE, fb->free)) { 188 DRM_DEBUG("adding to allocation set fails\n"); 189 mmFreeMem((PMemBlock) fb->free); 190 retval = -EINVAL; 191 } 192 } else { 193 fb->offset = 0; 194 fb->size = 0; 195 fb->free = 0; 196 } 197 198 DRM_DEBUG("alloc fb, size = %d, offset = %d\n", fb->size, fb->offset); 199 200 return retval; 201} 202 203static int sis_fb_free(struct drm_device *dev, void *data, struct drm_file *file_priv) 204{ 205 drm_sis_private_t *dev_priv = dev->dev_private; 206 drm_sis_mem_t *fb = data; 207 208 if (dev_priv == NULL || dev_priv->FBHeap == NULL) 209 return -EINVAL; 210 211 if (!mmBlockInHeap(dev_priv->FBHeap, (PMemBlock) fb->free)) 212 return -EINVAL; 213 214 if (!del_alloc_set(fb->context, VIDEO_TYPE, fb->free)) 215 return -EINVAL; 216 mmFreeMem((PMemBlock) fb->free); 217 218 DRM_DEBUG("free fb, free = 0x%lx\n", fb->free); 219 220 return 0; 221} 222 223#endif 224 225/* agp memory management */ 226 227static int sis_ioctl_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv) 228{ 229 drm_sis_private_t *dev_priv = dev->dev_private; 230 drm_sis_agp_t *agp = data; 231 232 if (dev_priv == NULL) { 233 dev->dev_private = drm_calloc(1, sizeof(drm_sis_private_t), 234 DRM_MEM_DRIVER); 235 dev_priv = dev->dev_private; 236 if (dev_priv == NULL) 237 return ENOMEM; 238 } 239 240 if (dev_priv->AGPHeap != NULL) 241 return -EINVAL; 242 243 dev_priv->AGPHeap = mmInit(agp->offset, agp->size); 244 245 DRM_DEBUG("offset = %u, size = %u", agp->offset, agp->size); 246 247 return 0; 248} 249 250static int sis_ioctl_agp_alloc(struct drm_device *dev, void *data, struct drm_file *file_priv) 251{ 252 drm_sis_private_t *dev_priv = dev->dev_private; 253 drm_sis_mem_t *agp = data; 254 PMemBlock block; 255 int retval = 0; 256 257 if (dev_priv == NULL || dev_priv->AGPHeap == NULL) 258 return -EINVAL; 259 260 block = mmAllocMem(dev_priv->AGPHeap, agp->size, 0, 0); 261 if (block) { 262 /* TODO */ 263 agp->offset = block->ofs; 264 agp->free = (unsigned long)block; 265 if (!add_alloc_set(agp->context, AGP_TYPE, agp->free)) { 266 DRM_DEBUG("adding to allocation set fails\n"); 267 mmFreeMem((PMemBlock) agp->free); 268 retval = -1; 269 } 270 } else { 271 agp->offset = 0; 272 agp->size = 0; 273 agp->free = 0; 274 } 275 276 DRM_DEBUG("alloc agp, size = %d, offset = %d\n", agp->size, 277 agp->offset); 278 279 return retval; 280} 281 282static int sis_ioctl_agp_free(struct drm_device *dev, void *data, struct drm_file *file_priv) 283{ 284 drm_sis_private_t *dev_priv = dev->dev_private; 285 drm_sis_mem_t *agp = data; 286 287 if (dev_priv == NULL || dev_priv->AGPHeap == NULL) 288 return -EINVAL; 289 290 if (!mmBlockInHeap(dev_priv->AGPHeap, (PMemBlock) agp->free)) 291 return -EINVAL; 292 293 mmFreeMem((PMemBlock) agp->free); 294 if (!del_alloc_set(agp->context, AGP_TYPE, agp->free)) 295 return -EINVAL; 296 297 DRM_DEBUG("free agp, free = 0x%lx\n", agp->free); 298 299 return 0; 300} 301 302int sis_init_context(struct drm_device *dev, int context) 303{ 304 int i; 305 306 for (i = 0; i < MAX_CONTEXT; i++) { 307 if (global_ppriv[i].used && 308 (global_ppriv[i].context == context)) 309 break; 310 } 311 312 if (i >= MAX_CONTEXT) { 313 for (i = 0; i < MAX_CONTEXT; i++) { 314 if (!global_ppriv[i].used) { 315 global_ppriv[i].context = context; 316 global_ppriv[i].used = 1; 317 global_ppriv[i].sets[0] = setInit(); 318 global_ppriv[i].sets[1] = setInit(); 319 DRM_DEBUG("init allocation set, socket=%d, " 320 "context = %d\n", i, context); 321 break; 322 } 323 } 324 if ((i >= MAX_CONTEXT) || (global_ppriv[i].sets[0] == NULL) || 325 (global_ppriv[i].sets[1] == NULL)) { 326 return 0; 327 } 328 } 329 330 return 1; 331} 332 333int sis_final_context(struct drm_device *dev, int context) 334{ 335 int i; 336 337 for (i = 0; i < MAX_CONTEXT; i++) { 338 if (global_ppriv[i].used && 339 (global_ppriv[i].context == context)) 340 break; 341 } 342 343 if (i < MAX_CONTEXT) { 344 set_t *set; 345 ITEM_TYPE item; 346 int retval; 347 348 DRM_DEBUG("find socket %d, context = %d\n", i, context); 349 350 /* Video Memory */ 351 set = global_ppriv[i].sets[0]; 352 retval = setFirst(set, &item); 353 while (retval) { 354 DRM_DEBUG("free video memory 0x%lx\n", item); 355#if defined(__linux__) && defined(CONFIG_FB_SIS) 356 sis_free(item); 357#else 358 mmFreeMem((PMemBlock) item); 359#endif 360 retval = setNext(set, &item); 361 } 362 setDestroy(set); 363 364 /* AGP Memory */ 365 set = global_ppriv[i].sets[1]; 366 retval = setFirst(set, &item); 367 while (retval) { 368 DRM_DEBUG("free agp memory 0x%lx\n", item); 369 mmFreeMem((PMemBlock) item); 370 retval = setNext(set, &item); 371 } 372 setDestroy(set); 373 374 global_ppriv[i].used = 0; 375 } 376 377 return 1; 378} 379 380drm_ioctl_desc_t sis_ioctls[] = { 381 DRM_IOCTL_DEF(DRM_SIS_FB_ALLOC, sis_fb_alloc, DRM_AUTH), 382 DRM_IOCTL_DEF(DRM_SIS_FB_FREE, sis_fb_free, DRM_AUTH), 383 DRM_IOCTL_DEF(DRM_SIS_AGP_INIT, sis_ioctl_agp_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY), 384 DRM_IOCTL_DEF(DRM_SIS_AGP_ALLOC, sis_ioctl_agp_alloc, DRM_AUTH), 385 DRM_IOCTL_DEF(DRM_SIS_AGP_FREE, sis_ioctl_agp_free, DRM_AUTH), 386 DRM_IOCTL_DEF(DRM_SIS_FB_INIT, sis_fb_init, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY) 387}; 388 389int sis_max_ioctl = DRM_ARRAY_SIZE(sis_ioctls); 390