/* dristat.c -- * Created: Mon Jan 15 05:05:07 2001 by faith@acm.org * * Copyright 2000 VA Linux Systems, Inc., Fremont, 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 * PRECISION INSIGHT 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. * * Authors: Rickard E. (Rik) Faith * */ #include #include #include #include "../../../xf86drm.h" #include "../xf86drmRandom.c" #include "../xf86drmHash.c" #include "../xf86drm.c" #define DRM_VERSION 0x00000001 #define DRM_MEMORY 0x00000002 #define DRM_CLIENTS 0x00000004 #define DRM_STATS 0x00000008 #define DRM_BUSID 0x00000010 static void getversion(int fd) { drmVersionPtr version; version = drmGetVersion(fd); if (version) { printf(" Version information:\n"); printf(" Name: %s\n", version->name ? version->name : "?"); printf(" Version: %d.%d.%d\n", version->version_major, version->version_minor, version->version_patchlevel); printf(" Date: %s\n", version->date ? version->date : "?"); printf(" Desc: %s\n", version->desc ? version->desc : "?"); drmFreeVersion(version); } else { printf(" No version information available\n"); } } static void getbusid(int fd) { const char *busid = drmGetBusid(fd); printf(" Busid: %s\n", *busid ? busid : "(not set)"); drmFreeBusid(busid); } static void getvm(int fd) { int i; const char *typename; char flagname[33]; drmHandle offset; drmSize size; drmMapType type; drmMapFlags flags; drmHandle handle; int mtrr; printf(" VM map information:\n"); printf(" flags: (R)estricted (r)ead/(w)rite (l)ocked (k)ernel (W)rite-combine (L)ock:\n"); printf(" slot offset size type flags address mtrr\n"); for (i = 0; !drmGetMap(fd, i, &offset, &size, &type, &flags, &handle, &mtrr); i++) { switch (type) { case DRM_FRAME_BUFFER: typename = "FB"; break; case DRM_REGISTERS: typename = "REG"; break; case DRM_SHM: typename = "SHM"; break; case DRM_AGP: typename = "AGP"; break; case DRM_SCATTER_GATHER: typename = "SG"; break; default: typename = "???"; break; } flagname[0] = (flags & DRM_RESTRICTED) ? 'R' : ' '; flagname[1] = (flags & DRM_READ_ONLY) ? 'r' : 'w'; flagname[2] = (flags & DRM_LOCKED) ? 'l' : ' '; flagname[3] = (flags & DRM_KERNEL) ? 'k' : ' '; flagname[4] = (flags & DRM_WRITE_COMBINING) ? 'W' : ' '; flagname[5] = (flags & DRM_CONTAINS_LOCK) ? 'L' : ' '; flagname[6] = '\0'; printf(" %4d 0x%08lx 0x%08lx %3.3s %6.6s 0x%08lx ", i, offset, (unsigned long)size, typename, flagname, handle); if (mtrr < 0) printf("none\n"); else printf("%4d\n", mtrr); } } static void getclients(int fd) { int i; int auth; int pid; int uid; unsigned long magic; unsigned long iocs; char buf[64]; char cmd[40]; int procfd; printf(" DRI client information:\n"); printf(" a pid uid magic ioctls prog\n"); for (i = 0; !drmGetClient(fd, i, &auth, &pid, &uid, &magic, &iocs); i++) { sprintf(buf, "/proc/%d/cmdline", pid); memset(cmd, sizeof(cmd), 0); if ((procfd = open(buf, O_RDONLY, 0)) >= 0) { read(procfd, cmd, sizeof(cmd)-1); close(procfd); } if (*cmd) { char *pt; for (pt = cmd; *pt; pt++) if (!isprint(*pt)) *pt = ' '; printf(" %c %5d %5d %10lu %10lu %s\n", auth ? 'y' : 'n', pid, uid, magic, iocs, cmd); } else { printf(" %c %5d %5d %10lu %10lu\n", auth ? 'y' : 'n', pid, uid, magic, iocs); } } } static void printhuman(unsigned long value, const char *name, int mult) { const char *p; double f; /* Print width 5 number in width 6 space */ if (value < 100000) { printf(" %5lu", value); return; } p = name; f = (double)value / (double)mult; if (f < 10.0) { printf(" %4.2f%c", f, *p); return; } p++; f = (double)value / (double)mult; if (f < 10.0) { printf(" %4.2f%c", f, *p); return; } p++; f = (double)value / (double)mult; if (f < 10.0) { printf(" %4.2f%c", f, *p); return; } } static void getstats(int fd, int i) { drmStatsT prev, curr; int j; double rate; printf(" System statistics:\n"); if (drmGetStats(fd, &prev)) return; if (!i) { for (j = 0; j < prev.count; j++) { printf(" "); printf(prev.data[j].long_format, prev.data[j].long_name); if (prev.data[j].isvalue) printf(" 0x%08lx\n", prev.data[j].value); else printf(" %10lu\n", prev.data[j].value); } return; } printf(" "); for (j = 0; j < prev.count; j++) if (!prev.data[j].verbose) { printf(" "); printf(prev.data[j].rate_format, prev.data[j].rate_name); } printf("\n"); for (;;) { sleep(i); if (drmGetStats(fd, &curr)) return; printf(" "); for (j = 0; j < curr.count; j++) { if (curr.data[j].verbose) continue; if (curr.data[j].isvalue) { printf(" %08lx", curr.data[j].value); } else { rate = (curr.data[j].value - prev.data[j].value) / (double)i; printhuman(rate, curr.data[j].mult_names, curr.data[j].mult); } } printf("\n"); memcpy(&prev, &curr, sizeof(prev)); } } int main(int argc, char **argv) { int c; int mask = 0; int minor = 0; int interval = 0; int fd; char buf[64]; int i; while ((c = getopt(argc, argv, "avmcsbM:i:")) != EOF) switch (c) { case 'a': mask = ~0; break; case 'v': mask |= DRM_VERSION; break; case 'm': mask |= DRM_MEMORY; break; case 'c': mask |= DRM_CLIENTS; break; case 's': mask |= DRM_STATS; break; case 'b': mask |= DRM_BUSID; break; case 'i': interval = strtol(optarg, NULL, 0); break; case 'M': minor = strtol(optarg, NULL, 0); break; default: fprintf( stderr, "Usage: dristat [options]\n" ); return 1; } for (i = 0; i < 16; i++) if (!minor || i == minor) { sprintf(buf, DRM_DEV_NAME, DRM_DIR_NAME, i); fd = drmOpenMinor(i, 1); if (fd >= 0) { printf("%s\n", buf); if (mask & DRM_BUSID) getbusid(fd); if (mask & DRM_VERSION) getversion(fd); if (mask & DRM_MEMORY) getvm(fd); if (mask & DRM_CLIENTS) getclients(fd); if (mask & DRM_STATS) getstats(fd, interval); close(fd); } } return 0; } n154' href='#n154'>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 
/* drm_lists.h -- Buffer list handling routines -*- linux-c -*-
 * Created: Mon Apr 19 20:54:22 1999 by faith@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.
 *
 * Authors:
 *    Rickard E. (Rik) Faith <faith@valinux.com>
 *    Gareth Hughes <gareth@valinux.com>
 */

#define __NO_VERSION__
#include "drmP.h"


int DRM(waitlist_create)(drm_waitlist_t *bl, int count)
{
	if (bl->count) return -EINVAL;

	bl->bufs       = DRM(alloc)((bl->count + 2) * sizeof(*bl->bufs),
				    DRM_MEM_BUFLISTS);

	if(!bl->bufs) return -ENOMEM;
	memset(bl->bufs, 0, sizeof(*bl->bufs));
	bl->count      = count;
	bl->rp	       = bl->bufs;
	bl->wp	       = bl->bufs;
	bl->end	       = &bl->bufs[bl->count+1];
	bl->write_lock = SPIN_LOCK_UNLOCKED;
	bl->read_lock  = SPIN_LOCK_UNLOCKED;
	return 0;
}

int DRM(waitlist_destroy)(drm_waitlist_t *bl)
{
	if (bl->rp != bl->wp) return -EINVAL;
	if (bl->bufs) DRM(free)(bl->bufs,
				(bl->count + 2) * sizeof(*bl->bufs),
				DRM_MEM_BUFLISTS);
	bl->count = 0;
	bl->bufs  = NULL;
	bl->rp	  = NULL;
	bl->wp	  = NULL;
	bl->end	  = NULL;
	return 0;
}

int DRM(waitlist_put)(drm_waitlist_t *bl, drm_buf_t *buf)
{
	int	      left;
	unsigned long flags;

	left = DRM_LEFTCOUNT(bl);
	if (!left) {
		DRM_ERROR("Overflow while adding buffer %d from filp %p\n",
			  buf->idx, buf->filp);
		return -EINVAL;
	}
	buf->list	 = DRM_LIST_WAIT;

	spin_lock_irqsave(&bl->write_lock, flags);
	*bl->wp = buf;
	if (++bl->wp >= bl->end) bl->wp = bl->bufs;
	spin_unlock_irqrestore(&bl->write_lock, flags);

	return 0;
}

drm_buf_t *DRM(waitlist_get)(drm_waitlist_t *bl)
{
	drm_buf_t     *buf;
	unsigned long flags;

	spin_lock_irqsave(&bl->read_lock, flags);
	buf = *bl->rp;
	if (bl->rp == bl->wp) {
		spin_unlock_irqrestore(&bl->read_lock, flags);
		return NULL;
	}
	if (++bl->rp >= bl->end) bl->rp = bl->bufs;
	spin_unlock_irqrestore(&bl->read_lock, flags);

	return buf;
}

int DRM(freelist_create)(drm_freelist_t *bl, int count)
{
	atomic_set(&bl->count, 0);
	bl->next      = NULL;
	init_waitqueue_head(&bl->waiting);
	bl->low_mark  = 0;
	bl->high_mark = 0;
	atomic_set(&bl->wfh,   0);
	bl->lock      = SPIN_LOCK_UNLOCKED;
	++bl->initialized;
	return 0;
}

int DRM(freelist_destroy)(drm_freelist_t *bl)
{
	atomic_set(&bl->count, 0);
	bl->next = NULL;
	return 0;
}

int DRM(freelist_put)(drm_device_t *dev, drm_freelist_t *bl, drm_buf_t *buf)
{
	drm_device_dma_t *dma  = dev->dma;

	if (!dma) {
		DRM_ERROR("No DMA support\n");
		return 1;
	}

	if (buf->waiting || buf->pending || buf->list == DRM_LIST_FREE) {
		DRM_ERROR("Freed buffer %d: w%d, p%d, l%d\n",
			  buf->idx, buf->waiting, buf->pending, buf->list);
	}
	if (!bl) return 1;
	buf->list	= DRM_LIST_FREE;

	spin_lock(&bl->lock);
	buf->next	= bl->next;
	bl->next	= buf;
	spin_unlock(&bl->lock);

	atomic_inc(&bl->count);
	if (atomic_read(&bl->count) > dma->buf_count) {
		DRM_ERROR("%d of %d buffers free after addition of %d\n",
			  atomic_read(&bl->count), dma->buf_count, buf->idx);
		return 1;
	}
				/* Check for high water mark */
	if (atomic_read(&bl->wfh) && atomic_read(&bl->count)>=bl->high_mark) {
		atomic_set(&bl->wfh, 0);
		wake_up_interruptible(&bl->waiting);
	}
	return 0;
}

static drm_buf_t *DRM(freelist_try)(drm_freelist_t *bl)
{
	drm_buf_t	  *buf;

	if (!bl) return NULL;

				/* Get buffer */
	spin_lock(&bl->lock);
	if (!bl->next) {
		spin_unlock(&bl->lock);
		return NULL;
	}
	buf	  = bl->next;
	bl->next  = bl->next->next;
	spin_unlock(&bl->lock);

	atomic_dec(&bl->count);
	buf->next = NULL;
	buf->list = DRM_LIST_NONE;
	if (buf->waiting || buf->pending) {
		DRM_ERROR("Free buffer %d: w%d, p%d, l%d\n",
			  buf->idx, buf->waiting, buf->pending, buf->list);
	}

	return buf;
}

drm_buf_t *DRM(freelist_get)(drm_freelist_t *bl, int block)
{
	drm_buf_t	  *buf	= NULL;
	DECLARE_WAITQUEUE(entry, current);

	if (!bl || !bl->initialized) return NULL;

				/* Check for low water mark */
	if (atomic_read(&bl->count) <= bl->low_mark) /* Became low */
		atomic_set(&bl->wfh, 1);
	if (atomic_read(&bl->wfh)) {
		if (block) {
			add_wait_queue(&bl->waiting, &entry);
			for (;;) {
				current->state = TASK_INTERRUPTIBLE;
				if (!atomic_read(&bl->wfh)
				    && (buf = DRM(freelist_try)(bl))) break;
				schedule();
				if (signal_pending(current)) break;
			}
			current->state = TASK_RUNNING;
			remove_wait_queue(&bl->waiting, &entry);
		}
		return buf;
	}

	return DRM(freelist_try)(bl);
}
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