/* * Copyright 2007 Nouveau Project * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), * to deal in the Software without restriction, including without limitation * the rights to use, copy, modify, merge, publish, distribute, sublicense, * and/or sell copies of the Software, and to permit persons to whom the * Software is furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include #include #include #include "nouveau_private.h" int nouveau_device_open_existing(struct nouveau_device **dev, int close, int fd, drm_context_t ctx) { struct nouveau_device_priv *nvdev; drmVersionPtr ver; uint64_t value; int ret; if (!dev || *dev) return -EINVAL; nvdev = calloc(1, sizeof(*nvdev)); if (!nvdev) return -ENOMEM; nvdev->fd = fd; nvdev->ctx = ctx; nvdev->needs_close = close; ver = drmGetVersion(fd); if (!ver) { nouveau_device_close((void *)&nvdev); return -EINVAL; } if ((ver->version_major == 0 && ver->version_patchlevel != 16) || ver->version_major > 1) { nouveau_device_close((void *)&nvdev); return -EINVAL; } drmFreeVersion(ver); ret = nouveau_device_get_param(&nvdev->base, NOUVEAU_GETPARAM_VM_VRAM_BASE, &value); if (ret) { nouveau_device_close((void *)&nvdev); return ret; } nvdev->base.vm_vram_base = value; ret = nouveau_device_get_param(&nvdev->base, NOUVEAU_GETPARAM_FB_SIZE, &value); if (ret) { nouveau_device_close((void *)&nvdev); return ret; } nvdev->base.vm_vram_size = value; ret = nouveau_device_get_param(&nvdev->base, NOUVEAU_GETPARAM_AGP_SIZE, &value); if (ret) { nouveau_device_close((void *)&nvdev); return ret; } nvdev->base.vm_gart_size = value; ret = nouveau_bo_init(&nvdev->base); if (ret) { nouveau_device_close((void *)&nvdev); return ret; } ret = nouveau_device_get_param(&nvdev->base, NOUVEAU_GETPARAM_CHIPSET_ID, &value); if (ret) { nouveau_device_close((void *)&nvdev); return ret; } nvdev->base.chipset = value; ret = nouveau_device_get_param(&nvdev->base, NOUVEAU_GETPARAM_HAS_BO_USAGE, &value); if (!ret) nvdev->has_bo_usage = value; *dev = &nvdev->base; return 0; } int nouveau_device_open(struct nouveau_device **dev, const char *busid) { drm_context_t ctx; int fd, ret; if (!dev || *dev) return -EINVAL; fd = drmOpen("nouveau", busid); if (fd < 0) return -EINVAL; ret = drmCreateContext(fd, &ctx); if (ret) { drmClose(fd); return ret; } ret = nouveau_device_open_existing(dev, 1, fd, ctx); if (ret) { drmDestroyContext(fd, ctx); drmClose(fd); return ret; } return 0; } void nouveau_device_close(struct nouveau_device **dev) { struct nouveau_device_priv *nvdev; if (!dev || !*dev) return; nvdev = nouveau_device(*dev); *dev = NULL; nouveau_bo_takedown(&nvdev->base); if (nvdev->needs_close) { drmDestroyContext(nvdev->fd, nvdev->ctx); drmClose(nvdev->fd); } free(nvdev); } int nouveau_device_get_param(struct nouveau_device *dev, uint64_t param, uint64_t *value) { struct nouveau_device_priv *nvdev = nouveau_device(dev); struct drm_nouveau_getparam g; int ret; if (!nvdev || !value) return -EINVAL; g.param = param; ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_GETPARAM, &g, sizeof(g)); if (ret) return ret; *value = g.value; return 0; } int nouveau_device_set_param(struct nouveau_device *dev, uint64_t param, uint64_t value) { struct nouveau_device_priv *nvdev = nouveau_device(dev); struct drm_nouveau_setparam s; int ret; if (!nvdev) return -EINVAL; s.param = param; s.value = value; ret = drmCommandWriteRead(nvdev->fd, DRM_NOUVEAU_SETPARAM, &s, sizeof(s)); if (ret) return ret; return 0; } '>51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 
/**
 * \file drm_memory_debug.h
 * Memory management wrappers for DRM.
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 * \author Gareth Hughes <gareth@valinux.com>
 */

/*
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * All Rights Reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include <linux/config.h>
#include "drmP.h"

typedef struct drm_mem_stats {
	const char *name;
	int succeed_count;
	int free_count;
	int fail_count;
	unsigned long bytes_allocated;
	unsigned long bytes_freed;
} drm_mem_stats_t;

static spinlock_t drm_mem_lock = SPIN_LOCK_UNLOCKED;
static unsigned long drm_ram_available = 0;	/* In pages */
static unsigned long drm_ram_used = 0;
static drm_mem_stats_t drm_mem_stats[] =
{
	[DRM_MEM_DMA] = {"dmabufs"},
	[DRM_MEM_SAREA] = {"sareas"},
	[DRM_MEM_DRIVER] = {"driver"},
	[DRM_MEM_MAGIC] = {"magic"},
	[DRM_MEM_IOCTLS] = {"ioctltab"},
	[DRM_MEM_MAPS] = {"maplist"},
	[DRM_MEM_VMAS] = {"vmalist"},
	[DRM_MEM_BUFS] = {"buflist"},
	[DRM_MEM_SEGS] = {"seglist"},
	[DRM_MEM_PAGES] = {"pagelist"},
	[DRM_MEM_FILES] = {"files"},
	[DRM_MEM_QUEUES] = {"queues"},
	[DRM_MEM_CMDS] = {"commands"},
	[DRM_MEM_MAPPINGS] = {"mappings"},
	[DRM_MEM_BUFLISTS] = {"buflists"},
	[DRM_MEM_AGPLISTS] = {"agplist"},
	[DRM_MEM_SGLISTS] = {"sglist"},
	[DRM_MEM_TOTALAGP] = {"totalagp"},
	[DRM_MEM_BOUNDAGP] = {"boundagp"},
	[DRM_MEM_CTXBITMAP] = {"ctxbitmap"},
	[DRM_MEM_CTXLIST] = {"ctxlist"},
	[DRM_MEM_STUB] = {"stub"},
	{NULL, 0,}		/* Last entry must be null */
};

void drm_mem_init (void) {
	drm_mem_stats_t *mem;
	struct sysinfo si;

	for (mem = drm_mem_stats; mem->name; ++mem) {
		mem->succeed_count = 0;
		mem->free_count = 0;
		mem->fail_count = 0;
		mem->bytes_allocated = 0;
		mem->bytes_freed = 0;
	}

	si_meminfo(&si);
	drm_ram_available = si.totalram;
	drm_ram_used = 0;
}

/* drm_mem_info is called whenever a process reads /dev/drm/mem. */

static int drm__mem_info (char *buf, char **start, off_t offset,
			   int request, int *eof, void *data) {
	drm_mem_stats_t *pt;
	int len = 0;

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*eof = 0;
	*start = &buf[offset];

	DRM_PROC_PRINT("		  total counts			"
		       " |    outstanding  \n");
	DRM_PROC_PRINT("type	   alloc freed fail	bytes	   freed"
		       " | allocs      bytes\n\n");
	DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB         |\n",
		       "system", 0, 0, 0,
		       drm_ram_available << (PAGE_SHIFT - 10));
	DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu kB         |\n",
		       "locked", 0, 0, 0, drm_ram_used >> 10);
	DRM_PROC_PRINT("\n");
	for (pt = drm_mem_stats; pt->name; pt++) {
		DRM_PROC_PRINT("%-9.9s %5d %5d %4d %10lu %10lu | %6d %10ld\n",
			       pt->name,
			       pt->succeed_count,
			       pt->free_count,
			       pt->fail_count,
			       pt->bytes_allocated,
			       pt->bytes_freed,
			       pt->succeed_count - pt->free_count,
			       (long)pt->bytes_allocated
			       - (long)pt->bytes_freed);
	}

	if (len > request + offset)
		return request;
	*eof = 1;
	return len - offset;
}

int drm_mem_info (char *buf, char **start, off_t offset,
		   int len, int *eof, void *data) {
	int ret;

	spin_lock(&drm_mem_lock);
	ret = drm__mem_info (buf, start, offset, len, eof, data);
	spin_unlock(&drm_mem_lock);
	return ret;
}

void *drm_alloc (size_t size, int area) {
	void *pt;

	if (!size) {
		DRM_MEM_ERROR(area, "Allocating 0 bytes\n");
		return NULL;
	}

	if (!(pt = kmalloc(size, GFP_KERNEL))) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[area].fail_count;
		spin_unlock(&drm_mem_lock);
		return NULL;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[area].succeed_count;
	drm_mem_stats[area].bytes_allocated += size;
	spin_unlock(&drm_mem_lock);
	return pt;
}

void *drm_calloc (size_t nmemb, size_t size, int area) {
	void *addr;

	addr = drm_alloc (nmemb * size, area);
	if (addr != NULL)
		memset((void *)addr, 0, size * nmemb);

	return addr;
}

void *drm_realloc (void *oldpt, size_t oldsize, size_t size, int area) {
	void *pt;

	if (!(pt = drm_alloc (size, area)))
		return NULL;
	if (oldpt && oldsize) {
		memcpy(pt, oldpt, oldsize);
		drm_free (oldpt, oldsize, area);
	}
	return pt;
}

void drm_free (void *pt, size_t size, int area) {
	int alloc_count;
	int free_count;

	if (!pt)
		DRM_MEM_ERROR(area, "Attempt to free NULL pointer\n");
	else
		kfree(pt);
	spin_lock(&drm_mem_lock);
	drm_mem_stats[area].bytes_freed += size;
	free_count = ++drm_mem_stats[area].free_count;
	alloc_count = drm_mem_stats[area].succeed_count;
	spin_unlock(&drm_mem_lock);
	if (free_count > alloc_count) {
		DRM_MEM_ERROR(area, "Excess frees: %d frees, %d allocs\n",
			      free_count, alloc_count);
	}
}

unsigned long drm_alloc_pages (int order, int area) {
	unsigned long address;
	unsigned long bytes = PAGE_SIZE << order;
	unsigned long addr;
	unsigned int sz;

	spin_lock(&drm_mem_lock);
	if ((drm_ram_used >> PAGE_SHIFT)
	    > (DRM_RAM_PERCENT * drm_ram_available) / 100) {
		spin_unlock(&drm_mem_lock);
		return 0;
	}
	spin_unlock(&drm_mem_lock);

	address = __get_free_pages(GFP_KERNEL, order);
	if (!address) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[area].fail_count;
		spin_unlock(&drm_mem_lock);
		return 0;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[area].succeed_count;
	drm_mem_stats[area].bytes_allocated += bytes;
	drm_ram_used += bytes;
	spin_unlock(&drm_mem_lock);

	/* Zero outside the lock */
	memset((void *)address, 0, bytes);

	/* Reserve */
	for (addr = address, sz = bytes;
	     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
		SetPageReserved(virt_to_page(addr));
	}

	return address;
}

void drm_free_pages (unsigned long address, int order, int area) {
	unsigned long bytes = PAGE_SIZE << order;
	int alloc_count;
	int free_count;
	unsigned long addr;
	unsigned int sz;

	if (!address) {
		DRM_MEM_ERROR(area, "Attempt to free address 0\n");
	} else {
		/* Unreserve */
		for (addr = address, sz = bytes;
		     sz > 0; addr += PAGE_SIZE, sz -= PAGE_SIZE) {
			ClearPageReserved(virt_to_page(addr));
		}
		free_pages(address, order);
	}

	spin_lock(&drm_mem_lock);
	free_count = ++drm_mem_stats[area].free_count;
	alloc_count = drm_mem_stats[area].succeed_count;
	drm_mem_stats[area].bytes_freed += bytes;
	drm_ram_used -= bytes;
	spin_unlock(&drm_mem_lock);
	if (free_count > alloc_count) {
		DRM_MEM_ERROR(area,
			      "Excess frees: %d frees, %d allocs\n",
			      free_count, alloc_count);
	}
}

void *drm_ioremap (unsigned long offset, unsigned long size,
		    drm_device_t * dev) {
	void *pt;

	if (!size) {
		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
			      "Mapping 0 bytes at 0x%08lx\n", offset);
		return NULL;
	}

	if (!(pt = drm_ioremap(offset, size, dev))) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[DRM_MEM_MAPPINGS].fail_count;
		spin_unlock(&drm_mem_lock);
		return NULL;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
	drm_mem_stats[DRM_MEM_MAPPINGS].bytes_allocated += size;
	spin_unlock(&drm_mem_lock);
	return pt;
}

void *drm_ioremap_nocache (unsigned long offset, unsigned long size,
			    drm_device_t * dev) {
	void *pt;

	if (!size) {
		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
			      "Mapping 0 bytes at 0x%08lx\n", offset);
		return NULL;
	}

	if (!(pt = drm_ioremap_nocache(offset, size, dev))) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[DRM_MEM_MAPPINGS].fail_count;
		spin_unlock(&drm_mem_lock);
		return NULL;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
	drm_mem_stats[DRM_MEM_MAPPINGS].bytes_allocated += size;
	spin_unlock(&drm_mem_lock);
	return pt;
}

void drm_ioremapfree (void *pt, unsigned long size, drm_device_t * dev) {
	int alloc_count;
	int free_count;

	if (!pt)
		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
			      "Attempt to free NULL pointer\n");
	else
		drm_ioremapfree(pt, size, dev);

	spin_lock(&drm_mem_lock);
	drm_mem_stats[DRM_MEM_MAPPINGS].bytes_freed += size;
	free_count = ++drm_mem_stats[DRM_MEM_MAPPINGS].free_count;
	alloc_count = drm_mem_stats[DRM_MEM_MAPPINGS].succeed_count;
	spin_unlock(&drm_mem_lock);
	if (free_count > alloc_count) {
		DRM_MEM_ERROR(DRM_MEM_MAPPINGS,
			      "Excess frees: %d frees, %d allocs\n",
			      free_count, alloc_count);
	}
}

#if __OS_HAS_AGP

DRM_AGP_MEM *drm_alloc_agp (int pages, u32 type) {
	DRM_AGP_MEM *handle;

	if (!pages) {
		DRM_MEM_ERROR(DRM_MEM_TOTALAGP, "Allocating 0 pages\n");
		return NULL;
	}

	if ((handle = drm_agp_allocate_memory (pages, type))) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
		drm_mem_stats[DRM_MEM_TOTALAGP].bytes_allocated
		    += pages << PAGE_SHIFT;
		spin_unlock(&drm_mem_lock);
		return handle;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[DRM_MEM_TOTALAGP].fail_count;
	spin_unlock(&drm_mem_lock);
	return NULL;
}

int drm_free_agp (DRM_AGP_MEM * handle, int pages) {
	int alloc_count;
	int free_count;
	int retval = -EINVAL;

	if (!handle) {
		DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
			      "Attempt to free NULL AGP handle\n");
		return retval;
	}

	if (drm_agp_free_memory (handle)) {
		spin_lock(&drm_mem_lock);
		free_count = ++drm_mem_stats[DRM_MEM_TOTALAGP].free_count;
		alloc_count = drm_mem_stats[DRM_MEM_TOTALAGP].succeed_count;
		drm_mem_stats[DRM_MEM_TOTALAGP].bytes_freed
		    += pages << PAGE_SHIFT;
		spin_unlock(&drm_mem_lock);
		if (free_count > alloc_count) {
			DRM_MEM_ERROR(DRM_MEM_TOTALAGP,
				      "Excess frees: %d frees, %d allocs\n",
				      free_count, alloc_count);
		}
		return 0;
	}
	return retval;
}

int drm_bind_agp (DRM_AGP_MEM * handle, unsigned int start) {
	int retcode = -EINVAL;

	if (!handle) {
		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
			      "Attempt to bind NULL AGP handle\n");
		return retcode;
	}

	if (!(retcode = drm_agp_bind_memory (handle, start))) {
		spin_lock(&drm_mem_lock);
		++drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
		drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_allocated
		    += handle->page_count << PAGE_SHIFT;
		spin_unlock(&drm_mem_lock);
		return retcode;
	}
	spin_lock(&drm_mem_lock);
	++drm_mem_stats[DRM_MEM_BOUNDAGP].fail_count;
	spin_unlock(&drm_mem_lock);
	return retcode;
}

int drm_unbind_agp (DRM_AGP_MEM * handle) {
	int alloc_count;
	int free_count;
	int retcode = -EINVAL;

	if (!handle) {
		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
			      "Attempt to unbind NULL AGP handle\n");
		return retcode;
	}

	if ((retcode = drm_agp_unbind_memory (handle)))
		return retcode;
	spin_lock(&drm_mem_lock);
	free_count = ++drm_mem_stats[DRM_MEM_BOUNDAGP].free_count;
	alloc_count = drm_mem_stats[DRM_MEM_BOUNDAGP].succeed_count;
	drm_mem_stats[DRM_MEM_BOUNDAGP].bytes_freed
	    += handle->page_count << PAGE_SHIFT;
	spin_unlock(&drm_mem_lock);
	if (free_count > alloc_count) {
		DRM_MEM_ERROR(DRM_MEM_BOUNDAGP,
			      "Excess frees: %d frees, %d allocs\n",
			      free_count, alloc_count);
	}
	return retcode;
}
#endif
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