341 lines
8.4 KiB
C
341 lines
8.4 KiB
C
/*-
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* Copyright 2003 Eric Anholt
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* ERIC ANHOLT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/** @file drm_sysctl.c
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* Implementation of various sysctls for controlling DRM behavior and reporting
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* debug information.
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*/
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#include "dev/drm/drmP.h"
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#include "dev/drm/drm.h"
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#include <sys/sysctl.h>
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static int drm_name_info DRM_SYSCTL_HANDLER_ARGS;
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static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS;
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static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS;
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static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS;
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static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS;
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struct drm_sysctl_list {
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const char *name;
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int (*f) DRM_SYSCTL_HANDLER_ARGS;
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} drm_sysctl_list[] = {
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{"name", drm_name_info},
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{"vm", drm_vm_info},
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{"clients", drm_clients_info},
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{"bufs", drm_bufs_info},
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{"vblank", drm_vblank_info},
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};
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#define DRM_SYSCTL_ENTRIES (sizeof(drm_sysctl_list)/sizeof(drm_sysctl_list[0]))
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struct drm_sysctl_info {
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struct sysctl_ctx_list ctx;
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char name[2];
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};
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int drm_sysctl_init(struct drm_device *dev)
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{
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struct drm_sysctl_info *info;
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struct sysctl_oid *oid;
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struct sysctl_oid *top, *drioid;
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int i;
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info = malloc(sizeof *info, DRM_MEM_DRIVER, M_WAITOK | M_ZERO);
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if ( !info )
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return 1;
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dev->sysctl = info;
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/* Add the sysctl node for DRI if it doesn't already exist */
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drioid = SYSCTL_ADD_NODE( &info->ctx, &sysctl__hw_children, OID_AUTO, "dri", CTLFLAG_RW, NULL, "DRI Graphics");
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if (!drioid)
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return 1;
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/* Find the next free slot under hw.dri */
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i = 0;
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SLIST_FOREACH(oid, SYSCTL_CHILDREN(drioid), oid_link) {
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if (i <= oid->oid_arg2)
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i = oid->oid_arg2 + 1;
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}
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if (i>9)
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return 1;
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/* Add the hw.dri.x for our device */
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info->name[0] = '0' + i;
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info->name[1] = 0;
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top = SYSCTL_ADD_NODE( &info->ctx, SYSCTL_CHILDREN(drioid), OID_AUTO, info->name, CTLFLAG_RW, NULL, NULL);
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if (!top)
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return 1;
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for (i = 0; i < DRM_SYSCTL_ENTRIES; i++) {
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oid = SYSCTL_ADD_OID(&info->ctx,
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SYSCTL_CHILDREN(top),
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OID_AUTO,
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drm_sysctl_list[i].name,
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CTLTYPE_INT | CTLFLAG_RD,
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dev,
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0,
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drm_sysctl_list[i].f,
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"A",
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NULL);
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if (!oid)
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return 1;
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}
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SYSCTL_ADD_INT(&info->ctx, SYSCTL_CHILDREN(top), OID_AUTO, "debug",
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CTLFLAG_RW, &drm_debug_flag, sizeof(drm_debug_flag),
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"Enable debugging output");
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return 0;
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}
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int drm_sysctl_cleanup(struct drm_device *dev)
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{
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int error;
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error = sysctl_ctx_free( &dev->sysctl->ctx );
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free(dev->sysctl, DRM_MEM_DRIVER);
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dev->sysctl = NULL;
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return error;
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}
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#define DRM_SYSCTL_PRINT(fmt, arg...) \
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do { \
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snprintf(buf, sizeof(buf), fmt, ##arg); \
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retcode = SYSCTL_OUT(req, buf, strlen(buf)); \
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if (retcode) \
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goto done; \
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} while (0)
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static int drm_name_info DRM_SYSCTL_HANDLER_ARGS
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{
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struct drm_device *dev = arg1;
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char buf[128];
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int retcode;
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int hasunique = 0;
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DRM_SYSCTL_PRINT("%s 0x%x", dev->driver->name, dev2udev(dev->devnode));
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DRM_LOCK();
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if (dev->unique) {
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snprintf(buf, sizeof(buf), " %s", dev->unique);
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hasunique = 1;
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}
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DRM_UNLOCK();
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if (hasunique)
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SYSCTL_OUT(req, buf, strlen(buf));
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SYSCTL_OUT(req, "", 1);
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done:
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return retcode;
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}
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static int drm_vm_info DRM_SYSCTL_HANDLER_ARGS
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{
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struct drm_device *dev = arg1;
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drm_local_map_t *map, *tempmaps;
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const char *types[] = { "FB", "REG", "SHM", "AGP", "SG" };
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const char *type, *yesno;
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int i, mapcount;
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char buf[128];
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int retcode;
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/* We can't hold the lock while doing SYSCTL_OUTs, so allocate a
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* temporary copy of all the map entries and then SYSCTL_OUT that.
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*/
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DRM_LOCK();
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mapcount = 0;
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TAILQ_FOREACH(map, &dev->maplist, link)
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mapcount++;
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tempmaps = malloc(sizeof(drm_local_map_t) * mapcount, DRM_MEM_DRIVER,
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M_NOWAIT);
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if (tempmaps == NULL) {
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DRM_UNLOCK();
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return ENOMEM;
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}
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i = 0;
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TAILQ_FOREACH(map, &dev->maplist, link)
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tempmaps[i++] = *map;
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DRM_UNLOCK();
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DRM_SYSCTL_PRINT("\nslot offset size "
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"type flags address mtrr\n");
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for (i = 0; i < mapcount; i++) {
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map = &tempmaps[i];
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if (map->type < 0 || map->type > 4)
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type = "??";
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else
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type = types[map->type];
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if (!map->mtrr)
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yesno = "no";
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else
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yesno = "yes";
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DRM_SYSCTL_PRINT(
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"%4d 0x%016lx 0x%08lx %4.4s 0x%02x 0x%016lx %s\n", i,
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map->offset, map->size, type, map->flags,
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(unsigned long)map->handle, yesno);
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}
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SYSCTL_OUT(req, "", 1);
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done:
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free(tempmaps, DRM_MEM_DRIVER);
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return retcode;
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}
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static int drm_bufs_info DRM_SYSCTL_HANDLER_ARGS
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{
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struct drm_device *dev = arg1;
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drm_device_dma_t *dma = dev->dma;
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drm_device_dma_t tempdma;
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int *templists;
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int i;
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char buf[128];
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int retcode;
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/* We can't hold the locks around DRM_SYSCTL_PRINT, so make a temporary
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* copy of the whole structure and the relevant data from buflist.
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*/
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DRM_LOCK();
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if (dma == NULL) {
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DRM_UNLOCK();
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return 0;
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}
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DRM_SPINLOCK(&dev->dma_lock);
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tempdma = *dma;
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templists = malloc(sizeof(int) * dma->buf_count, DRM_MEM_DRIVER,
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M_NOWAIT);
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for (i = 0; i < dma->buf_count; i++)
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templists[i] = dma->buflist[i]->list;
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dma = &tempdma;
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DRM_SPINUNLOCK(&dev->dma_lock);
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DRM_UNLOCK();
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DRM_SYSCTL_PRINT("\n o size count free segs pages kB\n");
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for (i = 0; i <= DRM_MAX_ORDER; i++) {
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if (dma->bufs[i].buf_count)
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DRM_SYSCTL_PRINT("%2d %8d %5d %5d %5d %5d %5d\n",
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i,
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dma->bufs[i].buf_size,
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dma->bufs[i].buf_count,
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atomic_read(&dma->bufs[i]
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.freelist.count),
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dma->bufs[i].seg_count,
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dma->bufs[i].seg_count
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*(1 << dma->bufs[i].page_order),
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(dma->bufs[i].seg_count
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* (1 << dma->bufs[i].page_order))
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* PAGE_SIZE / 1024);
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}
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DRM_SYSCTL_PRINT("\n");
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for (i = 0; i < dma->buf_count; i++) {
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if (i && !(i%32)) DRM_SYSCTL_PRINT("\n");
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DRM_SYSCTL_PRINT(" %d", templists[i]);
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}
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DRM_SYSCTL_PRINT("\n");
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SYSCTL_OUT(req, "", 1);
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done:
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free(templists, DRM_MEM_DRIVER);
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return retcode;
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}
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static int drm_clients_info DRM_SYSCTL_HANDLER_ARGS
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{
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struct drm_device *dev = arg1;
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struct drm_file *priv, *tempprivs;
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char buf[128];
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int retcode;
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int privcount, i;
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DRM_LOCK();
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privcount = 0;
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TAILQ_FOREACH(priv, &dev->files, link)
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privcount++;
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tempprivs = malloc(sizeof(struct drm_file) * privcount, DRM_MEM_DRIVER,
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M_NOWAIT);
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if (tempprivs == NULL) {
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DRM_UNLOCK();
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return ENOMEM;
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}
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i = 0;
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TAILQ_FOREACH(priv, &dev->files, link)
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tempprivs[i++] = *priv;
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DRM_UNLOCK();
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DRM_SYSCTL_PRINT(
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"\na dev pid uid magic ioctls\n");
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for (i = 0; i < privcount; i++) {
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priv = &tempprivs[i];
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DRM_SYSCTL_PRINT("%c %-12s %5d %5d %10u %10lu\n",
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priv->authenticated ? 'y' : 'n',
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devtoname(priv->dev->devnode),
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priv->pid,
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priv->uid,
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priv->magic,
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priv->ioctl_count);
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}
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SYSCTL_OUT(req, "", 1);
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done:
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free(tempprivs, DRM_MEM_DRIVER);
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return retcode;
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}
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static int drm_vblank_info DRM_SYSCTL_HANDLER_ARGS
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{
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struct drm_device *dev = arg1;
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char buf[128];
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int retcode;
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int i;
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DRM_SYSCTL_PRINT("\ncrtc ref count last enabled inmodeset\n");
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for(i = 0 ; i < dev->num_crtcs ; i++) {
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DRM_SYSCTL_PRINT(" %02d %02d %08d %08d %02d %02d\n",
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i, atomic_load_acq_32(&dev->vblank[i].refcount),
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atomic_load_acq_32(&dev->vblank[i].count),
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atomic_load_acq_32(&dev->vblank[i].last),
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atomic_load_acq_int(&dev->vblank[i].enabled),
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atomic_load_acq_int(&dev->vblank[i].inmodeset));
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}
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SYSCTL_OUT(req, "", -1);
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done:
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return retcode;
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}
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