/* drmstat.c -- DRM device status and testing program * Created: Tue Jan 5 08:19:24 1999 by faith@precisioninsight.com * * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas. * 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. * * Author: Rickard E. (Rik) Faith * * $XFree86: xc/programs/Xserver/hw/xfree86/os-support/linux/drm/kernel/drmstat.c,v 1.1 1999/09/25 14:37:59 dawes Exp $ * */ #include #include #include #include #include #include #include #include #include #include #include #include "xf86drm.h" int sigio_fd; static double usec(struct timeval *end, struct timeval *start) { double e = end->tv_sec * 1000000 + end->tv_usec; double s = start->tv_sec * 1000000 + start->tv_usec; return e - s; } static void getversion(int fd) { drmVersionPtr version; version = drmGetVersion(fd); if (version) { 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 driver available\n" ); } } void handler(int fd, void *oldctx, void *newctx) { printf("Got fd %d\n", fd); } void process_sigio(char *device) { int fd; if ((fd = open(device, 0)) < 0) { drmError(-errno, __FUNCTION__); exit(1); } sigio_fd = fd; drmInstallSIGIOHandler(fd, handler); for (;;) sleep(60); } int main(int argc, char **argv) { int c; int r = 0; int fd = -1; drmHandle handle; void *address; char *pt; unsigned long count; unsigned long offset; unsigned long size; drmContext context; int loops; char buf[1024]; int i; drmBufInfoPtr info; drmBufMapPtr bufs; drmLockPtr lock; int secs; while ((c = getopt(argc, argv, "lc:vo:O:f:s:w:W:b:r:R:P:L:C:XS:B:F:")) != EOF) switch (c) { case 'F': count = strtoul(optarg, NULL, 0); if (!fork()) { dup(fd); sleep(count); } close(fd); break; case 'v': getversion(fd); break; case 'X': if ((r = drmCreateContext(fd, &context))) { drmError(r, argv[0]); return 1; } printf( "Got %d\n", context); break; case 'S': process_sigio(optarg); break; case 'C': if ((r = drmSwitchToContext(fd, strtoul(optarg, NULL, 0)))) { drmError(r, argv[0]); return 1; } break; case 'c': if ((r = drmSetBusid(fd,optarg))) { drmError(r, argv[0]); return 1; } break; case 'o': if ((fd = drmOpen(optarg, NULL)) < 0) { drmError(fd, argv[0]); return 1; } break; case 'O': if ((fd = drmOpen(NULL, optarg)) < 0) { drmError(fd, argv[0]); return 1; } break; case 'B': /* Test buffer allocation */ count = strtoul(optarg, &pt, 0); size = strtoul(pt+1, &pt, 0); secs = strtoul(pt+1, NULL, 0); { drmDMAReq dma; int *indices, *sizes; indices = alloca(sizeof(*indices) * count); sizes = alloca(sizeof(*sizes) * count); dma.context = context; dma.send_count = 0; dma.request_count = count; dma.request_size = size; dma.request_list = indices; dma.request_sizes = sizes; dma.flags = DRM_DMA_WAIT; if ((r = drmDMA(fd, &dma))) { drmError(r, argv[0]); return 1; } for (i = 0; i < dma.granted_count; i++) { printf("%5d: index = %d, size = %d\n", i, dma.request_list[i], dma.request_sizes[i]); } sleep(secs); drmFreeBufs(fd, dma.granted_count, indices); } break; case 'b': count = strtoul(optarg, &pt, 0); size = strtoul(pt+1, NULL, 0); if ((r = drmAddBufs(fd, count, size, 0, 65536)) < 0) { drmError(r, argv[0]); return 1; } if (!(info = drmGetBufInfo(fd))) { drmError(0, argv[0]); return 1; } for (i = 0; i < info->count; i++) { printf("%5d buffers of size %6d (low = %d, high = %d)\n", info->list[i].count, info->list[i].size, info->list[i].low_mark, info->list[i].high_mark); } if ((r = drmMarkBufs(fd, 0.50, 0.80))) { drmError(r, argv[0]); return 1; } if (!(info = drmGetBufInfo(fd))) { drmError(0, argv[0]); return 1; } for (i = 0; i < info->count; i++) { printf("%5d buffers of size %6d (low = %d, high = %d)\n", info->list[i].count, info->list[i].size, info->list[i].low_mark, info->list[i].high_mark); } printf("===== /proc/graphics/0/mem =====\n"); sprintf(buf, "cat /proc/graphics/0/mem"); system(buf); #if 1 if (!(bufs = drmMapBufs(fd))) { drmError(0, argv[0]); return 1; } printf("===============================\n"); printf( "%d bufs\n", bufs->count); for (i = 0; i < bufs->count; i++) { printf( " %4d: %8d bytes at %p\n", i, bufs->list[i].total, bufs->list[i].address); } printf("===== /proc/graphics/0/vma =====\n"); sprintf(buf, "cat /proc/graphics/0/vma"); system(buf); #endif break; case 'f': offset = strtoul(optarg, &pt, 0); size = strtoul(pt+1, NULL, 0); handle = 0; if ((r = drmAddMap(fd, offset, size, DRM_FRAME_BUFFER, 0, &handle))) { drmError(r, argv[0]); return 1; } printf("0x%08lx:0x%04lx added\n", offset, size); printf("===== /proc/graphics/0/mem =====\n"); sprintf(buf, "cat /proc/graphics/0/mem"); system(buf); break; case 'r': case 'R': offset = strtoul(optarg, &pt, 0); size = strtoul(pt+1, NULL, 0); handle = 0; if ((r = drmAddMap(fd, offset, size, DRM_REGISTERS, c == 'R' ? DRM_READ_ONLY : 0, &handle))) { drmError(r, argv[0]); return 1; } printf("0x%08lx:0x%04lx added\n", offset, size); printf("===== /proc/graphics/0/mem =====\n"); sprintf(buf, "cat /proc/graphics/0/mem"); system(buf); break; case 's': size = strtoul(optarg, &pt, 0); handle = 0; if ((r = drmAddMap(fd, 0, size, DRM_SHM, DRM_CONTAINS_LOCK, &handle))) { drmError(r, argv[0]); return 1; } printf("0x%04lx byte shm added at 0x%08lx\n", size, handle); sprintf(buf, "cat /proc/graphics/0/vm"); system(buf); break; case 'P': offset = strtoul(optarg, &pt, 0); size = strtoul(pt+1, NULL, 0); address = NULL; if ((r = drmMap(fd, offset, size, &address))) { drmError(r, argv[0]); return 1; } printf("0x%08lx:0x%04lx mapped at %p for pid %d\n", offset, size, address, getpid()); printf("===== /proc/graphics/0/vma =====\n"); sprintf(buf, "cat /proc/graphics/0/vma"); system(buf); mprotect((void *)offset, size, PROT_READ); printf("===== /proc/graphics/0/vma =====\n"); sprintf(buf, "cat /proc/graphics/0/vma"); system(buf); break; case 'w': case 'W': offset = strtoul(optarg, &pt, 0); size = strtoul(pt+1, NULL, 0); address = NULL; if ((r = drmMap(fd, offset, size, &address))) { drmError(r, argv[0]); return 1; } printf("0x%08lx:0x%04lx mapped at %p for pid %d\n", offset, size, address, getpid()); printf("===== /proc/%d/maps =====\n", getpid()); sprintf(buf, "cat /proc/%d/maps", getpid()); system(buf); printf("===== /proc/grphics/0/mem =====\n"); sprintf(buf, "cat /proc/graphics/0/mem"); system(buf); printf("===== /proc/graphics/0/vma =====\n"); sprintf(buf, "cat /proc/graphics/0/vma"); system(buf); printf("===== READING =====\n"); for (i = 0; i < 0x10; i++) printf("%02x ", (unsigned int)((unsigned char *)address)[i]); printf("\n"); if (c == 'w') { printf("===== WRITING =====\n"); for (i = 0; i < size; i+=2) { ((char *)address)[i] = i & 0xff; ((char *)address)[i+1] = i & 0xff; } } printf("===== READING =====\n"); for (i = 0; i < 0x10; i++) printf("%02x ", (unsigned int)((unsigned char *)address)[i]); printf("\n"); printf("===== /proc/graphics/0/vma =====\n"); sprintf(buf, "cat /proc/graphics/0/vma"); system(buf); break; case 'L': context = strtoul(optarg, &pt, 0); offset = strtoul(pt+1, &pt, 0); size = strtoul(pt+1, &pt, 0); loops = strtoul(pt+1, NULL, 0); address = NULL; if ((r = drmMap(fd, offset, size, &address))) { drmError(r, argv[0]); return 1; } lock = address; #if 1 { int counter = 0; struct timeval loop_start, loop_end; struct timeval lock_start, lock_end; double wt; #define HISTOSIZE 9 int histo[HISTOSIZE]; int output = 0; int fast = 0; if (loops < 0) { loops = -loops; ++output; } for (i = 0; i < HISTOSIZE; i++) histo[i] = 0; gettimeofday(&loop_start, NULL); for (i = 0; i < loops; i++) { gettimeofday(&lock_start, NULL); DRM_LIGHT_LOCK_COUNT(fd,lock,context,fast); gettimeofday(&lock_end, NULL); DRM_UNLOCK(fd,lock,context); ++counter; wt = usec(&lock_end, &lock_start); if (wt <= 2.5) ++histo[8]; if (wt < 5.0) ++histo[0]; else if (wt < 50.0) ++histo[1]; else if (wt < 500.0) ++histo[2]; else if (wt < 5000.0) ++histo[3]; else if (wt < 50000.0) ++histo[4]; else if (wt < 500000.0) ++histo[5]; else if (wt < 5000000.0) ++histo[6]; else ++histo[7]; if (output) printf( "%.2f uSec, %d fast\n", wt, fast); } gettimeofday(&loop_end, NULL); printf( "Average wait time = %.2f usec, %d fast\n", usec(&loop_end, &loop_start) / counter, fast); printf( "%9d <= 2.5 uS\n", histo[8]); printf( "%9d < 5 uS\n", histo[0]); printf( "%9d < 50 uS\n", histo[1]); printf( "%9d < 500 uS\n", histo[2]); printf( "%9d < 5000 uS\n", histo[3]); printf( "%9d < 50000 uS\n", histo[4]); printf( "%9d < 500000 uS\n", histo[5]); printf( "%9d < 5000000 uS\n", histo[6]); printf( "%9d >= 5000000 uS\n", histo[7]); } #else printf( "before lock: 0x%08x\n", lock->lock); printf( "lock: 0x%08x\n", lock->lock); sleep(5); printf( "unlock: 0x%08x\n", lock->lock); #endif break; default: fprintf( stderr, "Usage: drmstat [options]\n" ); return 1; } return r; }