1005 lines
29 KiB
C
1005 lines
29 KiB
C
/*-
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* Copyright 1999, 2000 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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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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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors:
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* Rickard E. (Rik) Faith <faith@valinux.com>
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* Gareth Hughes <gareth@valinux.com>
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*
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/** @file drm_drv.c
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* The catch-all file for DRM device support, including module setup/teardown,
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* open/close, and ioctl dispatch.
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*/
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#include <sys/limits.h>
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#include <sys/sysent.h>
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#include <dev/drm2/drmP.h>
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#include <dev/drm2/drm.h>
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#include <dev/drm2/drm_sarea.h>
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#include <dev/drm2/drm_mode.h>
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#ifdef DRM_DEBUG_DEFAULT_ON
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int drm_debug_flag = 1;
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#else
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int drm_debug_flag = 2;
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#endif
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int drm_notyet_flag = 0;
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unsigned int drm_vblank_offdelay = 5000; /* Default to 5000 msecs. */
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unsigned int drm_timestamp_precision = 20; /* Default to 20 usecs. */
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static int drm_load(struct drm_device *dev);
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static void drm_unload(struct drm_device *dev);
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static drm_pci_id_list_t *drm_find_description(int vendor, int device,
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drm_pci_id_list_t *idlist);
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static int
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drm_modevent(module_t mod, int type, void *data)
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{
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switch (type) {
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case MOD_LOAD:
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TUNABLE_INT_FETCH("drm.debug", &drm_debug_flag);
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TUNABLE_INT_FETCH("drm.notyet", &drm_notyet_flag);
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break;
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}
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return (0);
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}
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static moduledata_t drm_mod = {
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"drmn",
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drm_modevent,
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0
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};
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DECLARE_MODULE(drmn, drm_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
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MODULE_VERSION(drmn, 1);
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MODULE_DEPEND(drmn, agp, 1, 1, 1);
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MODULE_DEPEND(drmn, pci, 1, 1, 1);
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MODULE_DEPEND(drmn, mem, 1, 1, 1);
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MODULE_DEPEND(drmn, iicbus, 1, 1, 1);
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static drm_ioctl_desc_t drm_ioctls[256] = {
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DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_BLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_UNBLOCK, drm_noop, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AUTH_MAGIC, drm_authmagic, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_ADD_MAP, drm_addmap_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_RM_MAP, drm_rmmap_ioctl, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_SET_SAREA_CTX, drm_setsareactx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_SAREA_CTX, drm_getsareactx, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_SET_MASTER, drm_setmaster_ioctl, DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_DROP_MASTER, drm_dropmaster_ioctl, DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_ADD_CTX, drm_addctx, DRM_AUTH|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_RM_CTX, drm_rmctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_MOD_CTX, drm_modctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_GET_CTX, drm_getctx, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_SWITCH_CTX, drm_switchctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_NEW_CTX, drm_newctx, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_RES_CTX, drm_resctx, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_ADD_DRAW, drm_adddraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_RM_DRAW, drm_rmdraw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_LOCK, drm_lock, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_UNLOCK, drm_unlock, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_FINISH, drm_noop, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_ADD_BUFS, drm_addbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_MARK_BUFS, drm_markbufs, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_INFO_BUFS, drm_infobufs, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_MAP_BUFS, drm_mapbufs, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_FREE_BUFS, drm_freebufs, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_DMA, drm_dma, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_CONTROL, drm_control, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_ACQUIRE, drm_agp_acquire_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_RELEASE, drm_agp_release_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_ENABLE, drm_agp_enable_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_INFO, drm_agp_info_ioctl, DRM_AUTH),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_ALLOC, drm_agp_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_FREE, drm_agp_free_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_BIND, drm_agp_bind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_AGP_UNBIND, drm_agp_unbind_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_SG_ALLOC, drm_sg_alloc_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_SG_FREE, drm_sg_free, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_WAIT_VBLANK, drm_wait_vblank, DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODESET_CTL, drm_modeset_ctl, 0),
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DRM_IOCTL_DEF(DRM_IOCTL_UPDATE_DRAW, drm_update_draw, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
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DRM_IOCTL_DEF(DRM_IOCTL_GEM_CLOSE, drm_gem_close_ioctl, DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_GEM_FLINK, drm_gem_flink_ioctl, DRM_AUTH|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETENCODER, drm_mode_getencoder, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCONNECTOR, drm_mode_getconnector, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_ATTACHMODE, drm_mode_attachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_DETACHMODE, drm_mode_detachmode_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPERTY, drm_mode_getproperty_ioctl, DRM_MASTER | DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPROPERTY, drm_mode_connector_property_set_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_CREATE_DUMB, drm_mode_create_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_MAP_DUMB, drm_mode_mmap_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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DRM_IOCTL_DEF(DRM_IOCTL_MODE_DESTROY_DUMB, drm_mode_destroy_dumb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
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};
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static struct cdevsw drm_cdevsw = {
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.d_version = D_VERSION,
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.d_open = drm_open,
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.d_read = drm_read,
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.d_ioctl = drm_ioctl,
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.d_poll = drm_poll,
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.d_mmap = drm_mmap,
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.d_mmap_single = drm_gem_mmap_single,
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.d_name = "drm",
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.d_flags = D_TRACKCLOSE
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};
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static int drm_msi = 1; /* Enable by default. */
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TUNABLE_INT("hw.drm.msi", &drm_msi);
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SYSCTL_NODE(_hw, OID_AUTO, drm, CTLFLAG_RW, NULL, "DRM device");
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SYSCTL_INT(_hw_drm, OID_AUTO, msi, CTLFLAG_RDTUN, &drm_msi, 1,
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"Enable MSI interrupts for drm devices");
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static struct drm_msi_blacklist_entry drm_msi_blacklist[] = {
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{0x8086, 0x2772}, /* Intel i945G */ \
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{0x8086, 0x27A2}, /* Intel i945GM */ \
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{0x8086, 0x27AE}, /* Intel i945GME */ \
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{0, 0}
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};
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static int drm_msi_is_blacklisted(int vendor, int device)
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{
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int i = 0;
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for (i = 0; drm_msi_blacklist[i].vendor != 0; i++) {
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if ((drm_msi_blacklist[i].vendor == vendor) &&
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(drm_msi_blacklist[i].device == device)) {
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return 1;
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}
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}
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return 0;
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}
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int drm_probe(device_t kdev, drm_pci_id_list_t *idlist)
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{
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drm_pci_id_list_t *id_entry;
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int vendor, device;
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vendor = pci_get_vendor(kdev);
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device = pci_get_device(kdev);
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if (pci_get_class(kdev) != PCIC_DISPLAY
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|| pci_get_subclass(kdev) != PCIS_DISPLAY_VGA)
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return ENXIO;
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id_entry = drm_find_description(vendor, device, idlist);
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if (id_entry != NULL) {
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if (!device_get_desc(kdev)) {
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DRM_DEBUG("desc : %s\n", device_get_desc(kdev));
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device_set_desc(kdev, id_entry->name);
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}
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return 0;
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}
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return ENXIO;
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}
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int drm_attach(device_t kdev, drm_pci_id_list_t *idlist)
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{
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struct drm_device *dev;
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drm_pci_id_list_t *id_entry;
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int error, msicount;
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dev = device_get_softc(kdev);
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dev->device = kdev;
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dev->pci_domain = pci_get_domain(dev->device);
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dev->pci_bus = pci_get_bus(dev->device);
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dev->pci_slot = pci_get_slot(dev->device);
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dev->pci_func = pci_get_function(dev->device);
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dev->pci_vendor = pci_get_vendor(dev->device);
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dev->pci_device = pci_get_device(dev->device);
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if (drm_core_check_feature(dev, DRIVER_HAVE_IRQ)) {
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if (drm_msi &&
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!drm_msi_is_blacklisted(dev->pci_vendor, dev->pci_device)) {
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msicount = pci_msi_count(dev->device);
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DRM_DEBUG("MSI count = %d\n", msicount);
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if (msicount > 1)
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msicount = 1;
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if (pci_alloc_msi(dev->device, &msicount) == 0) {
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DRM_INFO("MSI enabled %d message(s)\n",
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msicount);
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dev->msi_enabled = 1;
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dev->irqrid = 1;
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}
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}
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dev->irqr = bus_alloc_resource_any(dev->device, SYS_RES_IRQ,
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&dev->irqrid, RF_SHAREABLE);
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if (!dev->irqr) {
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return (ENOENT);
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}
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dev->irq = (int) rman_get_start(dev->irqr);
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}
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mtx_init(&dev->dev_lock, "drmdev", NULL, MTX_DEF);
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mtx_init(&dev->irq_lock, "drmirq", NULL, MTX_DEF);
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mtx_init(&dev->vbl_lock, "drmvbl", NULL, MTX_DEF);
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mtx_init(&dev->drw_lock, "drmdrw", NULL, MTX_DEF);
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mtx_init(&dev->event_lock, "drmev", NULL, MTX_DEF);
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sx_init(&dev->dev_struct_lock, "drmslk");
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id_entry = drm_find_description(dev->pci_vendor,
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dev->pci_device, idlist);
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dev->id_entry = id_entry;
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error = drm_load(dev);
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if (error == 0)
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error = drm_create_cdevs(kdev);
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return (error);
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}
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int
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drm_create_cdevs(device_t kdev)
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{
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struct drm_device *dev;
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int error, unit;
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unit = device_get_unit(kdev);
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dev = device_get_softc(kdev);
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error = make_dev_p(MAKEDEV_WAITOK | MAKEDEV_CHECKNAME, &dev->devnode,
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&drm_cdevsw, 0, DRM_DEV_UID, DRM_DEV_GID,
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DRM_DEV_MODE, "dri/card%d", unit);
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if (error == 0)
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dev->devnode->si_drv1 = dev;
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return (error);
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}
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int drm_detach(device_t kdev)
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{
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struct drm_device *dev;
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dev = device_get_softc(kdev);
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drm_unload(dev);
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if (dev->irqr) {
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bus_release_resource(dev->device, SYS_RES_IRQ, dev->irqrid,
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dev->irqr);
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if (dev->msi_enabled) {
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pci_release_msi(dev->device);
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DRM_INFO("MSI released\n");
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}
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}
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return (0);
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}
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#ifndef DRM_DEV_NAME
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#define DRM_DEV_NAME "drm"
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#endif
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devclass_t drm_devclass;
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drm_pci_id_list_t *drm_find_description(int vendor, int device,
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drm_pci_id_list_t *idlist)
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{
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int i = 0;
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|
|
|
for (i = 0; idlist[i].vendor != 0; i++) {
|
|
if ((idlist[i].vendor == vendor) &&
|
|
((idlist[i].device == device) ||
|
|
(idlist[i].device == 0))) {
|
|
return &idlist[i];
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
|
|
static int drm_firstopen(struct drm_device *dev)
|
|
{
|
|
drm_local_map_t *map;
|
|
int i;
|
|
|
|
DRM_LOCK_ASSERT(dev);
|
|
|
|
/* prebuild the SAREA */
|
|
i = drm_addmap(dev, 0, SAREA_MAX, _DRM_SHM,
|
|
_DRM_CONTAINS_LOCK, &map);
|
|
if (i != 0)
|
|
return i;
|
|
|
|
if (dev->driver->firstopen)
|
|
dev->driver->firstopen(dev);
|
|
|
|
dev->buf_use = 0;
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
|
|
i = drm_dma_setup(dev);
|
|
if (i != 0)
|
|
return i;
|
|
}
|
|
|
|
for (i = 0; i < DRM_HASH_SIZE; i++) {
|
|
dev->magiclist[i].head = NULL;
|
|
dev->magiclist[i].tail = NULL;
|
|
}
|
|
|
|
dev->lock.lock_queue = 0;
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET))
|
|
dev->irq_enabled = 0;
|
|
dev->context_flag = 0;
|
|
dev->last_context = 0;
|
|
dev->if_version = 0;
|
|
|
|
dev->buf_sigio = NULL;
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int drm_lastclose(struct drm_device *dev)
|
|
{
|
|
drm_magic_entry_t *pt, *next;
|
|
drm_local_map_t *map, *mapsave;
|
|
int i;
|
|
|
|
DRM_LOCK_ASSERT(dev);
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
if (dev->driver->lastclose != NULL)
|
|
dev->driver->lastclose(dev);
|
|
|
|
if (!drm_core_check_feature(dev, DRIVER_MODESET) && dev->irq_enabled)
|
|
drm_irq_uninstall(dev);
|
|
|
|
if (dev->unique) {
|
|
free(dev->unique, DRM_MEM_DRIVER);
|
|
dev->unique = NULL;
|
|
dev->unique_len = 0;
|
|
}
|
|
/* Clear pid list */
|
|
for (i = 0; i < DRM_HASH_SIZE; i++) {
|
|
for (pt = dev->magiclist[i].head; pt; pt = next) {
|
|
next = pt->next;
|
|
free(pt, DRM_MEM_MAGIC);
|
|
}
|
|
dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
|
|
}
|
|
|
|
DRM_UNLOCK(dev);
|
|
drm_drawable_free_all(dev);
|
|
DRM_LOCK(dev);
|
|
|
|
/* Clear AGP information */
|
|
if (dev->agp) {
|
|
drm_agp_mem_t *entry;
|
|
drm_agp_mem_t *nexte;
|
|
|
|
/* Remove AGP resources, but leave dev->agp intact until
|
|
* drm_unload is called.
|
|
*/
|
|
for (entry = dev->agp->memory; entry; entry = nexte) {
|
|
nexte = entry->next;
|
|
if (entry->bound)
|
|
drm_agp_unbind_memory(entry->handle);
|
|
drm_agp_free_memory(entry->handle);
|
|
free(entry, DRM_MEM_AGPLISTS);
|
|
}
|
|
dev->agp->memory = NULL;
|
|
|
|
if (dev->agp->acquired)
|
|
drm_agp_release(dev);
|
|
|
|
dev->agp->acquired = 0;
|
|
dev->agp->enabled = 0;
|
|
}
|
|
if (dev->sg != NULL) {
|
|
drm_sg_cleanup(dev->sg);
|
|
dev->sg = NULL;
|
|
}
|
|
|
|
TAILQ_FOREACH_SAFE(map, &dev->maplist, link, mapsave) {
|
|
if (!(map->flags & _DRM_DRIVER))
|
|
drm_rmmap(dev, map);
|
|
}
|
|
|
|
drm_dma_takedown(dev);
|
|
if (dev->lock.hw_lock) {
|
|
dev->lock.hw_lock = NULL; /* SHM removed */
|
|
dev->lock.file_priv = NULL;
|
|
DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int drm_load(struct drm_device *dev)
|
|
{
|
|
int i, retcode;
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
TAILQ_INIT(&dev->maplist);
|
|
dev->map_unrhdr = new_unrhdr(1, ((1 << DRM_MAP_HANDLE_BITS) - 1), NULL);
|
|
if (dev->map_unrhdr == NULL) {
|
|
DRM_ERROR("Couldn't allocate map number allocator\n");
|
|
return EINVAL;
|
|
}
|
|
|
|
|
|
drm_mem_init();
|
|
drm_sysctl_init(dev);
|
|
TAILQ_INIT(&dev->files);
|
|
|
|
dev->counters = 6;
|
|
dev->types[0] = _DRM_STAT_LOCK;
|
|
dev->types[1] = _DRM_STAT_OPENS;
|
|
dev->types[2] = _DRM_STAT_CLOSES;
|
|
dev->types[3] = _DRM_STAT_IOCTLS;
|
|
dev->types[4] = _DRM_STAT_LOCKS;
|
|
dev->types[5] = _DRM_STAT_UNLOCKS;
|
|
|
|
for (i = 0; i < DRM_ARRAY_SIZE(dev->counts); i++)
|
|
atomic_set(&dev->counts[i], 0);
|
|
|
|
INIT_LIST_HEAD(&dev->vblank_event_list);
|
|
|
|
if (drm_core_has_AGP(dev)) {
|
|
if (drm_device_is_agp(dev))
|
|
dev->agp = drm_agp_init();
|
|
if (drm_core_check_feature(dev, DRIVER_REQUIRE_AGP) &&
|
|
dev->agp == NULL) {
|
|
DRM_ERROR("Card isn't AGP, or couldn't initialize "
|
|
"AGP.\n");
|
|
retcode = ENOMEM;
|
|
goto error;
|
|
}
|
|
if (dev->agp != NULL && dev->agp->info.ai_aperture_base != 0) {
|
|
if (drm_mtrr_add(dev->agp->info.ai_aperture_base,
|
|
dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0)
|
|
dev->agp->mtrr = 1;
|
|
}
|
|
}
|
|
|
|
retcode = drm_ctxbitmap_init(dev);
|
|
if (retcode != 0) {
|
|
DRM_ERROR("Cannot allocate memory for context bitmap.\n");
|
|
goto error;
|
|
}
|
|
|
|
dev->drw_unrhdr = new_unrhdr(1, INT_MAX, NULL);
|
|
if (dev->drw_unrhdr == NULL) {
|
|
DRM_ERROR("Couldn't allocate drawable number allocator\n");
|
|
retcode = ENOMEM;
|
|
goto error;
|
|
}
|
|
|
|
if (dev->driver->driver_features & DRIVER_GEM) {
|
|
retcode = drm_gem_init(dev);
|
|
if (retcode != 0) {
|
|
DRM_ERROR("Cannot initialize graphics execution "
|
|
"manager (GEM)\n");
|
|
goto error1;
|
|
}
|
|
}
|
|
|
|
if (dev->driver->load != NULL) {
|
|
DRM_LOCK(dev);
|
|
/* Shared code returns -errno. */
|
|
retcode = -dev->driver->load(dev,
|
|
dev->id_entry->driver_private);
|
|
if (pci_enable_busmaster(dev->device))
|
|
DRM_ERROR("Request to enable bus-master failed.\n");
|
|
DRM_UNLOCK(dev);
|
|
if (retcode != 0)
|
|
goto error;
|
|
}
|
|
|
|
DRM_INFO("Initialized %s %d.%d.%d %s\n",
|
|
dev->driver->name,
|
|
dev->driver->major,
|
|
dev->driver->minor,
|
|
dev->driver->patchlevel,
|
|
dev->driver->date);
|
|
|
|
return 0;
|
|
|
|
error1:
|
|
delete_unrhdr(dev->drw_unrhdr);
|
|
error:
|
|
drm_sysctl_cleanup(dev);
|
|
DRM_LOCK(dev);
|
|
drm_lastclose(dev);
|
|
DRM_UNLOCK(dev);
|
|
if (dev->devnode != NULL)
|
|
destroy_dev(dev->devnode);
|
|
|
|
mtx_destroy(&dev->drw_lock);
|
|
mtx_destroy(&dev->vbl_lock);
|
|
mtx_destroy(&dev->irq_lock);
|
|
mtx_destroy(&dev->dev_lock);
|
|
mtx_destroy(&dev->event_lock);
|
|
sx_destroy(&dev->dev_struct_lock);
|
|
|
|
return retcode;
|
|
}
|
|
|
|
static void drm_unload(struct drm_device *dev)
|
|
{
|
|
int i;
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
drm_sysctl_cleanup(dev);
|
|
if (dev->devnode != NULL)
|
|
destroy_dev(dev->devnode);
|
|
|
|
drm_ctxbitmap_cleanup(dev);
|
|
|
|
if (dev->driver->driver_features & DRIVER_GEM)
|
|
drm_gem_destroy(dev);
|
|
|
|
if (dev->agp && dev->agp->mtrr) {
|
|
int __unused retcode;
|
|
|
|
retcode = drm_mtrr_del(0, dev->agp->info.ai_aperture_base,
|
|
dev->agp->info.ai_aperture_size, DRM_MTRR_WC);
|
|
DRM_DEBUG("mtrr_del = %d", retcode);
|
|
}
|
|
|
|
drm_vblank_cleanup(dev);
|
|
|
|
DRM_LOCK(dev);
|
|
drm_lastclose(dev);
|
|
DRM_UNLOCK(dev);
|
|
|
|
/* Clean up PCI resources allocated by drm_bufs.c. We're not really
|
|
* worried about resource consumption while the DRM is inactive (between
|
|
* lastclose and firstopen or unload) because these aren't actually
|
|
* taking up KVA, just keeping the PCI resource allocated.
|
|
*/
|
|
for (i = 0; i < DRM_MAX_PCI_RESOURCE; i++) {
|
|
if (dev->pcir[i] == NULL)
|
|
continue;
|
|
bus_release_resource(dev->device, SYS_RES_MEMORY,
|
|
dev->pcirid[i], dev->pcir[i]);
|
|
dev->pcir[i] = NULL;
|
|
}
|
|
|
|
if (dev->agp) {
|
|
free(dev->agp, DRM_MEM_AGPLISTS);
|
|
dev->agp = NULL;
|
|
}
|
|
|
|
if (dev->driver->unload != NULL) {
|
|
DRM_LOCK(dev);
|
|
dev->driver->unload(dev);
|
|
DRM_UNLOCK(dev);
|
|
}
|
|
|
|
delete_unrhdr(dev->drw_unrhdr);
|
|
delete_unrhdr(dev->map_unrhdr);
|
|
|
|
drm_mem_uninit();
|
|
|
|
if (pci_disable_busmaster(dev->device))
|
|
DRM_ERROR("Request to disable bus-master failed.\n");
|
|
|
|
mtx_destroy(&dev->drw_lock);
|
|
mtx_destroy(&dev->vbl_lock);
|
|
mtx_destroy(&dev->irq_lock);
|
|
mtx_destroy(&dev->dev_lock);
|
|
mtx_destroy(&dev->event_lock);
|
|
sx_destroy(&dev->dev_struct_lock);
|
|
}
|
|
|
|
int drm_version(struct drm_device *dev, void *data, struct drm_file *file_priv)
|
|
{
|
|
struct drm_version *version = data;
|
|
int len;
|
|
|
|
#define DRM_COPY( name, value ) \
|
|
len = strlen( value ); \
|
|
if ( len > name##_len ) len = name##_len; \
|
|
name##_len = strlen( value ); \
|
|
if ( len && name ) { \
|
|
if ( DRM_COPY_TO_USER( name, value, len ) ) \
|
|
return EFAULT; \
|
|
}
|
|
|
|
version->version_major = dev->driver->major;
|
|
version->version_minor = dev->driver->minor;
|
|
version->version_patchlevel = dev->driver->patchlevel;
|
|
|
|
DRM_COPY(version->name, dev->driver->name);
|
|
DRM_COPY(version->date, dev->driver->date);
|
|
DRM_COPY(version->desc, dev->driver->desc);
|
|
|
|
return 0;
|
|
}
|
|
|
|
int
|
|
drm_open(struct cdev *kdev, int flags, int fmt, DRM_STRUCTPROC *p)
|
|
{
|
|
struct drm_device *dev;
|
|
int retcode;
|
|
|
|
dev = kdev->si_drv1;
|
|
if (dev == NULL)
|
|
return (ENXIO);
|
|
|
|
DRM_DEBUG("open_count = %d\n", dev->open_count);
|
|
|
|
retcode = drm_open_helper(kdev, flags, fmt, p, dev);
|
|
|
|
if (retcode == 0) {
|
|
atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
|
|
DRM_LOCK(dev);
|
|
mtx_lock(&Giant);
|
|
device_busy(dev->device);
|
|
mtx_unlock(&Giant);
|
|
if (!dev->open_count++)
|
|
retcode = drm_firstopen(dev);
|
|
DRM_UNLOCK(dev);
|
|
}
|
|
|
|
return (retcode);
|
|
}
|
|
|
|
void drm_close(void *data)
|
|
{
|
|
struct drm_file *file_priv = data;
|
|
struct drm_device *dev = file_priv->dev;
|
|
int retcode = 0;
|
|
|
|
DRM_DEBUG("open_count = %d\n", dev->open_count);
|
|
|
|
DRM_LOCK(dev);
|
|
|
|
if (dev->driver->preclose != NULL)
|
|
dev->driver->preclose(dev, file_priv);
|
|
|
|
/* ========================================================
|
|
* Begin inline drm_release
|
|
*/
|
|
|
|
DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
|
|
DRM_CURRENTPID, (long)dev->device, dev->open_count);
|
|
|
|
if (dev->driver->driver_features & DRIVER_GEM)
|
|
drm_gem_release(dev, file_priv);
|
|
|
|
if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
|
|
&& dev->lock.file_priv == file_priv) {
|
|
DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
|
|
DRM_CURRENTPID,
|
|
_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
|
|
if (dev->driver->reclaim_buffers_locked != NULL)
|
|
dev->driver->reclaim_buffers_locked(dev, file_priv);
|
|
|
|
drm_lock_free(&dev->lock,
|
|
_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
|
|
|
|
/* FIXME: may require heavy-handed reset of
|
|
hardware at this point, possibly
|
|
processed via a callback to the X
|
|
server. */
|
|
} else if (dev->driver->reclaim_buffers_locked != NULL &&
|
|
dev->lock.hw_lock != NULL) {
|
|
/* The lock is required to reclaim buffers */
|
|
for (;;) {
|
|
if (!dev->lock.hw_lock) {
|
|
/* Device has been unregistered */
|
|
retcode = EINTR;
|
|
break;
|
|
}
|
|
if (drm_lock_take(&dev->lock, DRM_KERNEL_CONTEXT)) {
|
|
dev->lock.file_priv = file_priv;
|
|
dev->lock.lock_time = jiffies;
|
|
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
|
|
break; /* Got lock */
|
|
}
|
|
/* Contention */
|
|
retcode = DRM_LOCK_SLEEP(dev, &dev->lock.lock_queue,
|
|
PCATCH, "drmlk2", 0);
|
|
if (retcode)
|
|
break;
|
|
}
|
|
if (retcode == 0) {
|
|
dev->driver->reclaim_buffers_locked(dev, file_priv);
|
|
drm_lock_free(&dev->lock, DRM_KERNEL_CONTEXT);
|
|
}
|
|
}
|
|
|
|
if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
|
|
!dev->driver->reclaim_buffers_locked)
|
|
drm_reclaim_buffers(dev, file_priv);
|
|
|
|
funsetown(&dev->buf_sigio);
|
|
seldrain(&file_priv->event_poll);
|
|
|
|
if (dev->driver->postclose != NULL)
|
|
dev->driver->postclose(dev, file_priv);
|
|
TAILQ_REMOVE(&dev->files, file_priv, link);
|
|
free(file_priv, DRM_MEM_FILES);
|
|
|
|
/* ========================================================
|
|
* End inline drm_release
|
|
*/
|
|
|
|
atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
|
|
mtx_lock(&Giant);
|
|
device_unbusy(dev->device);
|
|
mtx_unlock(&Giant);
|
|
if (--dev->open_count == 0) {
|
|
retcode = drm_lastclose(dev);
|
|
}
|
|
|
|
DRM_UNLOCK(dev);
|
|
}
|
|
|
|
extern drm_ioctl_desc_t drm_compat_ioctls[];
|
|
|
|
/* drm_ioctl is called whenever a process performs an ioctl on /dev/drm.
|
|
*/
|
|
int drm_ioctl(struct cdev *kdev, u_long cmd, caddr_t data, int flags,
|
|
DRM_STRUCTPROC *p)
|
|
{
|
|
struct drm_device *dev = drm_get_device_from_kdev(kdev);
|
|
int retcode = 0;
|
|
drm_ioctl_desc_t *ioctl;
|
|
int (*func)(struct drm_device *dev, void *data, struct drm_file *file_priv);
|
|
int nr = DRM_IOCTL_NR(cmd);
|
|
int is_driver_ioctl = 0;
|
|
struct drm_file *file_priv;
|
|
|
|
retcode = devfs_get_cdevpriv((void **)&file_priv);
|
|
if (retcode != 0) {
|
|
DRM_ERROR("can't find authenticator\n");
|
|
return EINVAL;
|
|
}
|
|
|
|
atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]);
|
|
++file_priv->ioctl_count;
|
|
|
|
DRM_DEBUG("pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
|
|
DRM_CURRENTPID, cmd, nr, (long)dev->device,
|
|
file_priv->authenticated);
|
|
|
|
switch (cmd) {
|
|
case FIONBIO:
|
|
case FIOASYNC:
|
|
return 0;
|
|
|
|
case FIOSETOWN:
|
|
return fsetown(*(int *)data, &dev->buf_sigio);
|
|
|
|
case FIOGETOWN:
|
|
*(int *) data = fgetown(&dev->buf_sigio);
|
|
return 0;
|
|
}
|
|
|
|
if (IOCGROUP(cmd) != DRM_IOCTL_BASE) {
|
|
DRM_DEBUG("Bad ioctl group 0x%x\n", (int)IOCGROUP(cmd));
|
|
return EINVAL;
|
|
}
|
|
|
|
#ifdef COMPAT_FREEBSD32
|
|
/*
|
|
* Called whenever a 32-bit process running under a 64-bit
|
|
* kernel performs an ioctl on /dev/drm.
|
|
*/
|
|
if (SV_CURPROC_FLAG(SV_ILP32) && drm_compat_ioctls[nr].func != NULL)
|
|
/*
|
|
* Assume that ioctls without an explicit compat
|
|
* routine will just work. This may not always be a
|
|
* good assumption, but it's better than always
|
|
* failing.
|
|
*/
|
|
ioctl = &drm_compat_ioctls[nr];
|
|
else
|
|
#endif
|
|
ioctl = &drm_ioctls[nr];
|
|
/* It's not a core DRM ioctl, try driver-specific. */
|
|
if (ioctl->func == NULL && nr >= DRM_COMMAND_BASE) {
|
|
/* The array entries begin at DRM_COMMAND_BASE ioctl nr */
|
|
nr -= DRM_COMMAND_BASE;
|
|
if (nr > dev->driver->max_ioctl) {
|
|
DRM_DEBUG("Bad driver ioctl number, 0x%x (of 0x%x)\n",
|
|
nr, dev->driver->max_ioctl);
|
|
return EINVAL;
|
|
}
|
|
#ifdef COMPAT_FREEBSD32
|
|
if (SV_CURPROC_FLAG(SV_ILP32) &&
|
|
nr < *dev->driver->compat_ioctls_nr &&
|
|
dev->driver->compat_ioctls[nr].func != NULL)
|
|
ioctl = &dev->driver->compat_ioctls[nr];
|
|
else
|
|
#endif
|
|
ioctl = &dev->driver->ioctls[nr];
|
|
is_driver_ioctl = 1;
|
|
}
|
|
func = ioctl->func;
|
|
|
|
if (func == NULL) {
|
|
DRM_DEBUG("no function\n");
|
|
return EINVAL;
|
|
}
|
|
|
|
if (((ioctl->flags & DRM_ROOT_ONLY) && !DRM_SUSER(p)) ||
|
|
((ioctl->flags & DRM_AUTH) && !file_priv->authenticated) ||
|
|
((ioctl->flags & DRM_MASTER) && !file_priv->master))
|
|
return EACCES;
|
|
|
|
if (is_driver_ioctl) {
|
|
if ((ioctl->flags & DRM_UNLOCKED) == 0)
|
|
DRM_LOCK(dev);
|
|
/* shared code returns -errno */
|
|
retcode = -func(dev, data, file_priv);
|
|
if ((ioctl->flags & DRM_UNLOCKED) == 0)
|
|
DRM_UNLOCK(dev);
|
|
} else {
|
|
retcode = func(dev, data, file_priv);
|
|
}
|
|
|
|
if (retcode != 0)
|
|
DRM_DEBUG(" returning %d\n", retcode);
|
|
if (retcode != 0 &&
|
|
(drm_debug_flag & DRM_DEBUGBITS_FAILED_IOCTL) != 0) {
|
|
printf(
|
|
"pid %d, cmd 0x%02lx, nr 0x%02x/%1d, dev 0x%lx, auth %d, res %d\n",
|
|
DRM_CURRENTPID, cmd, nr, is_driver_ioctl, (long)dev->device,
|
|
file_priv->authenticated, retcode);
|
|
}
|
|
|
|
return retcode;
|
|
}
|
|
|
|
drm_local_map_t *drm_getsarea(struct drm_device *dev)
|
|
{
|
|
drm_local_map_t *map;
|
|
|
|
DRM_LOCK_ASSERT(dev);
|
|
TAILQ_FOREACH(map, &dev->maplist, link) {
|
|
if (map->type == _DRM_SHM && (map->flags & _DRM_CONTAINS_LOCK))
|
|
return map;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
int
|
|
drm_add_busid_modesetting(struct drm_device *dev, struct sysctl_ctx_list *ctx,
|
|
struct sysctl_oid *top)
|
|
{
|
|
struct sysctl_oid *oid;
|
|
|
|
snprintf(dev->busid_str, sizeof(dev->busid_str),
|
|
"pci:%04x:%02x:%02x.%d", dev->pci_domain, dev->pci_bus,
|
|
dev->pci_slot, dev->pci_func);
|
|
oid = SYSCTL_ADD_STRING(ctx, SYSCTL_CHILDREN(top), OID_AUTO, "busid",
|
|
CTLFLAG_RD, dev->busid_str, 0, NULL);
|
|
if (oid == NULL)
|
|
return (ENOMEM);
|
|
dev->modesetting = (dev->driver->driver_features & DRIVER_MODESET) != 0;
|
|
oid = SYSCTL_ADD_INT(ctx, SYSCTL_CHILDREN(top), OID_AUTO,
|
|
"modesetting", CTLFLAG_RD, &dev->modesetting, 0, NULL);
|
|
if (oid == NULL)
|
|
return (ENOMEM);
|
|
|
|
return (0);
|
|
}
|
|
|
|
#if DRM_LINUX
|
|
|
|
#include <sys/sysproto.h>
|
|
|
|
MODULE_DEPEND(DRIVER_NAME, linux, 1, 1, 1);
|
|
|
|
#define LINUX_IOCTL_DRM_MIN 0x6400
|
|
#define LINUX_IOCTL_DRM_MAX 0x64ff
|
|
|
|
static linux_ioctl_function_t drm_linux_ioctl;
|
|
static struct linux_ioctl_handler drm_handler = {drm_linux_ioctl,
|
|
LINUX_IOCTL_DRM_MIN, LINUX_IOCTL_DRM_MAX};
|
|
|
|
SYSINIT(drm_register, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_register_handler, &drm_handler);
|
|
SYSUNINIT(drm_unregister, SI_SUB_KLD, SI_ORDER_MIDDLE,
|
|
linux_ioctl_unregister_handler, &drm_handler);
|
|
|
|
/* The bits for in/out are switched on Linux */
|
|
#define LINUX_IOC_IN IOC_OUT
|
|
#define LINUX_IOC_OUT IOC_IN
|
|
|
|
static int
|
|
drm_linux_ioctl(DRM_STRUCTPROC *p, struct linux_ioctl_args* args)
|
|
{
|
|
int error;
|
|
int cmd = args->cmd;
|
|
|
|
args->cmd &= ~(LINUX_IOC_IN | LINUX_IOC_OUT);
|
|
if (cmd & LINUX_IOC_IN)
|
|
args->cmd |= IOC_IN;
|
|
if (cmd & LINUX_IOC_OUT)
|
|
args->cmd |= IOC_OUT;
|
|
|
|
error = ioctl(p, (struct ioctl_args *)args);
|
|
|
|
return error;
|
|
}
|
|
#endif /* DRM_LINUX */
|
|
|
|
bool
|
|
dmi_check_system(const struct dmi_system_id *sysid)
|
|
{
|
|
|
|
/* XXXKIB */
|
|
return (false);
|
|
}
|
|
|