1146 lines
28 KiB
C
1146 lines
28 KiB
C
/* drm_drv.h -- Generic driver template -*- linux-c -*-
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* Created: Thu Nov 23 03:10:50 2000 by gareth@valinux.com
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*
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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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* $FreeBSD$
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*/
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/*
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* To use this template, you must at least define the following (samples
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* given for the MGA driver):
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*
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* #define DRIVER_AUTHOR "VA Linux Systems, Inc."
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*
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* #define DRIVER_NAME "mga"
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* #define DRIVER_DESC "Matrox G200/G400"
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* #define DRIVER_DATE "20001127"
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*
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* #define DRIVER_MAJOR 2
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* #define DRIVER_MINOR 0
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* #define DRIVER_PATCHLEVEL 2
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*
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* #define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( mga_ioctls )
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*
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* #define DRM(x) mga_##x
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*/
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#ifndef __MUST_HAVE_AGP
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#define __MUST_HAVE_AGP 0
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#endif
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#ifndef __HAVE_CTX_BITMAP
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#define __HAVE_CTX_BITMAP 0
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#endif
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#ifndef __HAVE_IRQ
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#define __HAVE_IRQ 0
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#endif
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#ifndef __HAVE_DMA_QUEUE
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#define __HAVE_DMA_QUEUE 0
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#endif
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#ifndef __HAVE_DMA_SCHEDULE
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#define __HAVE_DMA_SCHEDULE 0
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#endif
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#ifndef __HAVE_DMA_QUIESCENT
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#define __HAVE_DMA_QUIESCENT 0
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#endif
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#ifndef __HAVE_RELEASE
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#define __HAVE_RELEASE 0
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#endif
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#ifndef __HAVE_COUNTERS
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#define __HAVE_COUNTERS 0
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#endif
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#ifndef __HAVE_SG
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#define __HAVE_SG 0
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#endif
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#ifndef DRIVER_PREINIT
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#define DRIVER_PREINIT()
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#endif
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#ifndef DRIVER_POSTINIT
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#define DRIVER_POSTINIT()
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#endif
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#ifndef DRIVER_PRERELEASE
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#define DRIVER_PRERELEASE()
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#endif
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#ifndef DRIVER_PRETAKEDOWN
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#define DRIVER_PRETAKEDOWN()
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#endif
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#ifndef DRIVER_POSTCLEANUP
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#define DRIVER_POSTCLEANUP()
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#endif
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#ifndef DRIVER_PRESETUP
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#define DRIVER_PRESETUP()
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#endif
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#ifndef DRIVER_POSTSETUP
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#define DRIVER_POSTSETUP()
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#endif
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#ifndef DRIVER_IOCTLS
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#define DRIVER_IOCTLS
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#endif
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#ifndef DRIVER_OPEN_HELPER
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#define DRIVER_OPEN_HELPER( priv, dev )
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#endif
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#ifndef DRIVER_FOPS
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#endif
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#if 1 && DRM_DEBUG_CODE
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int DRM(flags) = DRM_FLAG_DEBUG;
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#else
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int DRM(flags) = 0;
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#endif
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static int DRM(init)(device_t nbdev);
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static void DRM(cleanup)(drm_device_t *dev);
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#ifdef __FreeBSD__
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#define DRIVER_SOFTC(unit) \
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((drm_device_t *) devclass_get_softc(DRM(devclass), unit))
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#if __REALLY_HAVE_AGP
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MODULE_DEPEND(DRIVER_NAME, agp, 1, 1, 1);
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#endif
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#endif /* __FreeBSD__ */
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#ifdef __NetBSD__
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#define DRIVER_SOFTC(unit) \
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((drm_device_t *) device_lookup(&DRM(cd), unit))
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#endif /* __NetBSD__ */
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static drm_ioctl_desc_t DRM(ioctls)[] = {
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[DRM_IOCTL_NR(DRM_IOCTL_VERSION)] = { DRM(version), 0, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE)] = { DRM(getunique), 0, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_MAGIC)] = { DRM(getmagic), 0, 0 },
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#if __HAVE_IRQ
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[DRM_IOCTL_NR(DRM_IOCTL_IRQ_BUSID)] = { DRM(irq_by_busid), 0, 1 },
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#endif
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[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP)] = { DRM(getmap), 0, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT)] = { DRM(getclient), 0, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS)] = { DRM(getstats), 0, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_SET_VERSION)] = { DRM(setversion), 0, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE)] = { DRM(setunique), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_BLOCK)] = { DRM(noop), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_UNBLOCK)] = { DRM(noop), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AUTH_MAGIC)] = { DRM(authmagic), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP)] = { DRM(addmap), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP)] = { DRM(rmmap), 1, 0 },
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#if __HAVE_CTX_BITMAP
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[DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX)] = { DRM(setsareactx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX)] = { DRM(getsareactx), 1, 0 },
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#endif
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[DRM_IOCTL_NR(DRM_IOCTL_ADD_CTX)] = { DRM(addctx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_RM_CTX)] = { DRM(rmctx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_MOD_CTX)] = { DRM(modctx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_GET_CTX)] = { DRM(getctx), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_SWITCH_CTX)] = { DRM(switchctx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_NEW_CTX)] = { DRM(newctx), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX)] = { DRM(resctx), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_ADD_DRAW)] = { DRM(adddraw), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_RM_DRAW)] = { DRM(rmdraw), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_LOCK)] = { DRM(lock), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_UNLOCK)] = { DRM(unlock), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_FINISH)] = { DRM(noop), 1, 0 },
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#if __HAVE_DMA
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[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS)] = { DRM(addbufs), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS)] = { DRM(markbufs), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS)] = { DRM(infobufs), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS)] = { DRM(mapbufs), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS)] = { DRM(freebufs), 1, 0 },
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/* The DRM_IOCTL_DMA ioctl should be defined by the driver. */
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#endif
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#if __HAVE_IRQ || __HAVE_DMA
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[DRM_IOCTL_NR(DRM_IOCTL_CONTROL)] = { DRM(control), 1, 1 },
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#endif
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#if __REALLY_HAVE_AGP
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_ACQUIRE)] = { DRM(agp_acquire), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_RELEASE)] = { DRM(agp_release), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE)] = { DRM(agp_enable), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO)] = { DRM(agp_info), 1, 0 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC)] = { DRM(agp_alloc), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE)] = { DRM(agp_free), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND)] = { DRM(agp_bind), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND)] = { DRM(agp_unbind), 1, 1 },
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#endif
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#if __HAVE_SG
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[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC)] = { DRM(sg_alloc), 1, 1 },
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[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE)] = { DRM(sg_free), 1, 1 },
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#endif
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#if __HAVE_VBL_IRQ
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[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK)] = { DRM(wait_vblank), 0, 0 },
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#endif
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DRIVER_IOCTLS
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};
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#define DRIVER_IOCTL_COUNT DRM_ARRAY_SIZE( DRM(ioctls) )
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const char *DRM(find_description)(int vendor, int device);
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#ifdef __FreeBSD__
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static struct cdevsw DRM(cdevsw) = {
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.d_open = DRM( open ),
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.d_close = DRM( close ),
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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_name = DRIVER_NAME,
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.d_maj = CDEV_MAJOR,
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.d_flags = D_TTY | D_TRACKCLOSE,
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#if __FreeBSD_version < 500000
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.d_bmaj = -1
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#endif
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};
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static drm_pci_id_list_t DRM(pciidlist)[] = {
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DRIVER_PCI_IDS
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};
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static int DRM(probe)(device_t dev)
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{
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const char *s = NULL;
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int pciid, vendor, device;
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/* XXX: Cope with agp bridge device? */
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if (!strcmp(device_get_name(dev), "drmsub"))
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pciid = pci_get_devid(device_get_parent(dev));
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else
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pciid = pci_get_devid(dev);
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vendor = (pciid & 0x0000ffff);
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device = (pciid & 0xffff0000) >> 16;
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s = DRM(find_description)(vendor, device);
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if (s != NULL) {
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device_set_desc(dev, s);
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return 0;
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}
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return ENXIO;
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}
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static int DRM(attach)(device_t dev)
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{
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return DRM(init)(dev);
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}
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static int DRM(detach)(device_t dev)
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{
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DRM(cleanup)(device_get_softc(dev));
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return 0;
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}
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static device_method_t DRM(methods)[] = {
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/* Device interface */
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DEVMETHOD(device_probe, DRM(probe)),
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DEVMETHOD(device_attach, DRM(attach)),
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DEVMETHOD(device_detach, DRM(detach)),
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{ 0, 0 }
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};
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static driver_t DRM(driver) = {
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"drm",
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DRM(methods),
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sizeof(drm_device_t),
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};
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static devclass_t DRM(devclass);
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#elif defined(__NetBSD__)
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static struct cdevsw DRM(cdevsw) = {
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DRM(open),
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DRM(close),
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DRM(read),
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nowrite,
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DRM(ioctl),
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nostop,
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notty,
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DRM(poll),
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DRM(mmap),
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nokqfilter,
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D_TTY
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};
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int DRM(refcnt) = 0;
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#if __NetBSD_Version__ >= 106080000
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MOD_DEV( DRIVER_NAME, DRIVER_NAME, NULL, -1, &DRM(cdevsw), CDEV_MAJOR);
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#else
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MOD_DEV( DRIVER_NAME, LM_DT_CHAR, CDEV_MAJOR, &DRM(cdevsw) );
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#endif
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int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver);
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static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd);
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int DRM(modprobe)();
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int DRM(probe)(struct pci_attach_args *pa);
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void DRM(attach)(struct pci_attach_args *pa, dev_t kdev);
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int DRM(lkmentry)(struct lkm_table *lkmtp, int cmd, int ver) {
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DISPATCH(lkmtp, cmd, ver, DRM(lkmhandle), DRM(lkmhandle), DRM(lkmhandle));
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}
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static int DRM(lkmhandle)(struct lkm_table *lkmtp, int cmd)
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{
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int j, error = 0;
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#if defined(__NetBSD__) && (__NetBSD_Version__ > 106080000)
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struct lkm_dev *args = lkmtp->private.lkm_dev;
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#endif
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switch(cmd) {
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case LKM_E_LOAD:
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if (lkmexists(lkmtp))
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return EEXIST;
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if(DRM(modprobe)())
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return 0;
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return 1;
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case LKM_E_UNLOAD:
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if (DRM(refcnt) > 0)
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return (EBUSY);
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break;
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case LKM_E_STAT:
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break;
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default:
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error = EIO;
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break;
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}
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return error;
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}
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int DRM(modprobe)() {
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struct pci_attach_args pa;
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int error = 0;
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if((error = pci_find_device(&pa, DRM(probe))) != 0)
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DRM(attach)(&pa, 0);
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return error;
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}
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int DRM(probe)(struct pci_attach_args *pa)
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{
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const char *desc;
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desc = DRM(find_description)(PCI_VENDOR(pa->pa_id),
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PCI_PRODUCT(pa->pa_id));
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if (desc != NULL) {
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return 1;
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}
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return 0;
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}
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void DRM(attach)(struct pci_attach_args *pa, dev_t kdev)
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{
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int i;
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drm_device_t *dev;
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config_makeroom(kdev, &DRM(cd));
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DRM(cd).cd_devs[(kdev)] = DRM(alloc)(sizeof(drm_device_t),
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DRM_MEM_DRIVER);
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dev = DRIVER_SOFTC(kdev);
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memset(dev, 0, sizeof(drm_device_t));
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memcpy(&dev->pa, pa, sizeof(dev->pa));
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DRM_INFO("%s", DRM(find_description)(PCI_VENDOR(pa->pa_id), PCI_PRODUCT(pa->pa_id)));
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DRM(init)(dev);
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}
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int DRM(detach)(struct device *self, int flags)
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{
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DRM(cleanup)((drm_device_t *)self);
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return 0;
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}
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int DRM(activate)(struct device *self, enum devact act)
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{
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switch (act) {
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case DVACT_ACTIVATE:
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return (EOPNOTSUPP);
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break;
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case DVACT_DEACTIVATE:
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/* FIXME */
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break;
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}
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return (0);
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}
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#endif /* __NetBSD__ */
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const char *DRM(find_description)(int vendor, int device) {
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int i = 0;
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for (i = 0; DRM(pciidlist)[i].vendor != 0; i++) {
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if ((DRM(pciidlist)[i].vendor == vendor) &&
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(DRM(pciidlist)[i].device == device)) {
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return DRM(pciidlist)[i].name;
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}
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}
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return NULL;
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}
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/* Initialize the DRM on first open. */
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static int DRM(setup)( drm_device_t *dev )
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{
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int i;
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DRM_SPINLOCK_ASSERT(&dev->dev_lock);
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DRIVER_PRESETUP();
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dev->buf_use = 0;
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#if __HAVE_DMA
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i = DRM(dma_setup)( dev );
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if ( i != 0 )
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return i;
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#endif
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dev->counters = 6 + __HAVE_COUNTERS;
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dev->types[0] = _DRM_STAT_LOCK;
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dev->types[1] = _DRM_STAT_OPENS;
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dev->types[2] = _DRM_STAT_CLOSES;
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dev->types[3] = _DRM_STAT_IOCTLS;
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dev->types[4] = _DRM_STAT_LOCKS;
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dev->types[5] = _DRM_STAT_UNLOCKS;
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#ifdef __HAVE_COUNTER6
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dev->types[6] = __HAVE_COUNTER6;
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#endif
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#ifdef __HAVE_COUNTER7
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dev->types[7] = __HAVE_COUNTER7;
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#endif
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#ifdef __HAVE_COUNTER8
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dev->types[8] = __HAVE_COUNTER8;
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#endif
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#ifdef __HAVE_COUNTER9
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dev->types[9] = __HAVE_COUNTER9;
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#endif
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#ifdef __HAVE_COUNTER10
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dev->types[10] = __HAVE_COUNTER10;
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#endif
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#ifdef __HAVE_COUNTER11
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dev->types[11] = __HAVE_COUNTER11;
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#endif
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#ifdef __HAVE_COUNTER12
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dev->types[12] = __HAVE_COUNTER12;
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#endif
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#ifdef __HAVE_COUNTER13
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dev->types[13] = __HAVE_COUNTER13;
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#endif
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#ifdef __HAVE_COUNTER14
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dev->types[14] = __HAVE_COUNTER14;
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#endif
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#ifdef __HAVE_COUNTER15
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dev->types[14] = __HAVE_COUNTER14;
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#endif
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|
|
for ( i = 0 ; i < DRM_ARRAY_SIZE(dev->counts) ; i++ )
|
|
atomic_set( &dev->counts[i], 0 );
|
|
|
|
for ( i = 0 ; i < DRM_HASH_SIZE ; i++ ) {
|
|
dev->magiclist[i].head = NULL;
|
|
dev->magiclist[i].tail = NULL;
|
|
}
|
|
|
|
dev->lock.hw_lock = NULL;
|
|
dev->lock.lock_queue = 0;
|
|
dev->irq_enabled = 0;
|
|
dev->context_flag = 0;
|
|
dev->last_context = 0;
|
|
dev->if_version = 0;
|
|
|
|
#ifdef __FreeBSD__
|
|
dev->buf_sigio = NULL;
|
|
#elif defined(__NetBSD__)
|
|
dev->buf_pgid = 0;
|
|
#endif
|
|
|
|
DRM_DEBUG( "\n" );
|
|
|
|
DRIVER_POSTSETUP();
|
|
return 0;
|
|
}
|
|
|
|
/* Free resources associated with the DRM on the last close. */
|
|
static int DRM(takedown)( drm_device_t *dev )
|
|
{
|
|
drm_magic_entry_t *pt, *next;
|
|
drm_local_map_t *map;
|
|
drm_map_list_entry_t *list;
|
|
int i;
|
|
|
|
DRM_SPINLOCK_ASSERT(&dev->dev_lock);
|
|
|
|
DRM_DEBUG( "\n" );
|
|
|
|
DRIVER_PRETAKEDOWN();
|
|
#if __HAVE_IRQ
|
|
if (dev->irq_enabled)
|
|
DRM(irq_uninstall)( dev );
|
|
#endif
|
|
|
|
if ( dev->unique ) {
|
|
DRM(free)( dev->unique, strlen( dev->unique ) + 1,
|
|
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;
|
|
DRM(free)( pt, sizeof(*pt), DRM_MEM_MAGIC );
|
|
}
|
|
dev->magiclist[i].head = dev->magiclist[i].tail = NULL;
|
|
}
|
|
|
|
#if __REALLY_HAVE_AGP
|
|
/* 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(cleanup) is called. */
|
|
for ( entry = dev->agp->memory ; entry ; entry = nexte ) {
|
|
nexte = entry->next;
|
|
if ( entry->bound ) DRM(unbind_agp)( entry->handle );
|
|
DRM(free_agp)( entry->handle, entry->pages );
|
|
DRM(free)( entry, sizeof(*entry), DRM_MEM_AGPLISTS );
|
|
}
|
|
dev->agp->memory = NULL;
|
|
|
|
if ( dev->agp->acquired ) DRM(agp_do_release)();
|
|
|
|
dev->agp->acquired = 0;
|
|
dev->agp->enabled = 0;
|
|
}
|
|
#endif
|
|
#if __REALLY_HAVE_SG
|
|
if (dev->sg != NULL) {
|
|
DRM(sg_cleanup)(dev->sg);
|
|
dev->sg = NULL;
|
|
}
|
|
#endif
|
|
|
|
if (dev->maplist != NULL) {
|
|
while ((list=TAILQ_FIRST(dev->maplist))) {
|
|
map = list->map;
|
|
switch ( map->type ) {
|
|
case _DRM_REGISTERS:
|
|
DRM(ioremapfree)(map);
|
|
/* FALLTHROUGH */
|
|
case _DRM_FRAME_BUFFER:
|
|
#if __REALLY_HAVE_MTRR
|
|
if (map->mtrr) {
|
|
int __unused retcode;
|
|
|
|
retcode = DRM(mtrr_del)(map->offset,
|
|
map->size, DRM_MTRR_WC);
|
|
DRM_DEBUG("mtrr_del = %d", retcode);
|
|
}
|
|
#endif
|
|
break;
|
|
case _DRM_SHM:
|
|
DRM(free)(map->handle,
|
|
map->size,
|
|
DRM_MEM_SAREA);
|
|
break;
|
|
|
|
case _DRM_AGP:
|
|
case _DRM_SCATTER_GATHER:
|
|
/* Do nothing here, because this is all
|
|
* handled in the AGP/GART/SG functions.
|
|
*/
|
|
break;
|
|
}
|
|
TAILQ_REMOVE(dev->maplist, list, link);
|
|
DRM(free)(list, sizeof(*list), DRM_MEM_MAPS);
|
|
DRM(free)(map, sizeof(*map), DRM_MEM_MAPS);
|
|
}
|
|
}
|
|
|
|
#if __HAVE_DMA
|
|
DRM(dma_takedown)( dev );
|
|
#endif
|
|
if ( dev->lock.hw_lock ) {
|
|
dev->lock.hw_lock = NULL; /* SHM removed */
|
|
dev->lock.filp = NULL;
|
|
DRM_WAKEUP_INT((void *)&dev->lock.lock_queue);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* linux: drm_init is called via init_module at module load time, or via
|
|
* linux/init/main.c (this is not currently supported).
|
|
* bsd: drm_init is called via the attach function per device.
|
|
*/
|
|
static int DRM(init)( device_t nbdev )
|
|
{
|
|
int unit;
|
|
#ifdef __FreeBSD__
|
|
drm_device_t *dev;
|
|
#elif defined(__NetBSD__)
|
|
drm_device_t *dev = nbdev;
|
|
#endif
|
|
#if __HAVE_CTX_BITMAP
|
|
int retcode;
|
|
#endif
|
|
DRM_DEBUG( "\n" );
|
|
DRIVER_PREINIT();
|
|
|
|
#ifdef __FreeBSD__
|
|
unit = device_get_unit(nbdev);
|
|
dev = device_get_softc(nbdev);
|
|
memset( (void *)dev, 0, sizeof(*dev) );
|
|
|
|
if (!strcmp(device_get_name(nbdev), "drmsub"))
|
|
dev->device = device_get_parent(nbdev);
|
|
else
|
|
dev->device = nbdev;
|
|
|
|
dev->devnode = make_dev( &DRM(cdevsw),
|
|
unit,
|
|
DRM_DEV_UID,
|
|
DRM_DEV_GID,
|
|
DRM_DEV_MODE,
|
|
"dri/card%d", unit );
|
|
#if __FreeBSD_version >= 500000
|
|
mtx_init(&dev->dev_lock, "drm device", NULL, MTX_DEF);
|
|
#endif
|
|
#elif defined(__NetBSD__)
|
|
unit = minor(dev->device.dv_unit);
|
|
#endif
|
|
|
|
dev->irq = pci_get_irq(dev->device);
|
|
/* XXX Fix domain number (alpha hoses) */
|
|
dev->pci_domain = 0;
|
|
dev->pci_bus = pci_get_bus(dev->device);
|
|
dev->pci_slot = pci_get_slot(dev->device);
|
|
dev->pci_func = pci_get_function(dev->device);
|
|
|
|
dev->maplist = DRM(calloc)(1, sizeof(*dev->maplist), DRM_MEM_MAPS);
|
|
if (dev->maplist == NULL) {
|
|
retcode = ENOMEM;
|
|
goto error;
|
|
}
|
|
TAILQ_INIT(dev->maplist);
|
|
|
|
dev->name = DRIVER_NAME;
|
|
DRM(mem_init)();
|
|
DRM(sysctl_init)(dev);
|
|
TAILQ_INIT(&dev->files);
|
|
|
|
#if __REALLY_HAVE_AGP
|
|
dev->agp = DRM(agp_init)();
|
|
#if __MUST_HAVE_AGP
|
|
if ( dev->agp == NULL ) {
|
|
DRM_ERROR( "Cannot initialize the agpgart module.\n" );
|
|
retcode = DRM_ERR(ENOMEM);
|
|
goto error;
|
|
}
|
|
#endif /* __MUST_HAVE_AGP */
|
|
#if __REALLY_HAVE_MTRR
|
|
if (dev->agp) {
|
|
if (DRM(mtrr_add)(dev->agp->info.ai_aperture_base,
|
|
dev->agp->info.ai_aperture_size, DRM_MTRR_WC) == 0)
|
|
dev->agp->mtrr = 1;
|
|
}
|
|
#endif /* __REALLY_HAVE_MTRR */
|
|
#endif /* __REALLY_HAVE_AGP */
|
|
|
|
#if __HAVE_CTX_BITMAP
|
|
retcode = DRM(ctxbitmap_init)( dev );
|
|
if (retcode != 0) {
|
|
DRM_ERROR( "Cannot allocate memory for context bitmap.\n" );
|
|
goto error;
|
|
}
|
|
#endif
|
|
|
|
DRM_INFO( "Initialized %s %d.%d.%d %s on minor %d\n",
|
|
DRIVER_NAME,
|
|
DRIVER_MAJOR,
|
|
DRIVER_MINOR,
|
|
DRIVER_PATCHLEVEL,
|
|
DRIVER_DATE,
|
|
unit );
|
|
|
|
DRIVER_POSTINIT();
|
|
|
|
return 0;
|
|
|
|
error:
|
|
DRM(sysctl_cleanup)(dev);
|
|
DRM_LOCK();
|
|
DRM(takedown)(dev);
|
|
DRM_UNLOCK();
|
|
#ifdef __FreeBSD__
|
|
destroy_dev(dev->devnode);
|
|
#if __FreeBSD_version >= 500000
|
|
mtx_destroy(&dev->dev_lock);
|
|
#endif
|
|
#endif
|
|
DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
|
|
return retcode;
|
|
}
|
|
|
|
/* linux: drm_cleanup is called via cleanup_module at module unload time.
|
|
* bsd: drm_cleanup is called per device at module unload time.
|
|
* FIXME: NetBSD
|
|
*/
|
|
static void DRM(cleanup)(drm_device_t *dev)
|
|
{
|
|
|
|
DRM_DEBUG( "\n" );
|
|
|
|
DRM(sysctl_cleanup)( dev );
|
|
#ifdef __FreeBSD__
|
|
destroy_dev(dev->devnode);
|
|
#endif
|
|
#if __HAVE_CTX_BITMAP
|
|
DRM(ctxbitmap_cleanup)( dev );
|
|
#endif
|
|
|
|
#if __REALLY_HAVE_AGP && __REALLY_HAVE_MTRR
|
|
if (dev->agp && dev->agp->mtrr) {
|
|
int __unused retcode;
|
|
|
|
retcode = DRM(mtrr_del)(dev->agp->info.ai_aperture_base,
|
|
dev->agp->info.ai_aperture_size, DRM_MTRR_WC);
|
|
DRM_DEBUG("mtrr_del = %d", retcode);
|
|
}
|
|
#endif
|
|
|
|
DRM_LOCK();
|
|
DRM(takedown)( dev );
|
|
DRM_UNLOCK();
|
|
|
|
#if __REALLY_HAVE_AGP
|
|
if ( dev->agp ) {
|
|
DRM(agp_uninit)();
|
|
DRM(free)( dev->agp, sizeof(*dev->agp), DRM_MEM_AGPLISTS );
|
|
dev->agp = NULL;
|
|
}
|
|
#endif
|
|
DRIVER_POSTCLEANUP();
|
|
DRM(mem_uninit)();
|
|
#if defined(__FreeBSD__) && __FreeBSD_version >= 500000
|
|
mtx_destroy(&dev->dev_lock);
|
|
#endif
|
|
DRM(free)(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
|
|
}
|
|
|
|
|
|
int DRM(version)( DRM_IOCTL_ARGS )
|
|
{
|
|
drm_version_t version;
|
|
int len;
|
|
|
|
DRM_COPY_FROM_USER_IOCTL( version, (drm_version_t *)data, sizeof(version) );
|
|
|
|
#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 DRM_ERR(EFAULT); \
|
|
}
|
|
|
|
version.version_major = DRIVER_MAJOR;
|
|
version.version_minor = DRIVER_MINOR;
|
|
version.version_patchlevel = DRIVER_PATCHLEVEL;
|
|
|
|
DRM_COPY( version.name, DRIVER_NAME );
|
|
DRM_COPY( version.date, DRIVER_DATE );
|
|
DRM_COPY( version.desc, DRIVER_DESC );
|
|
|
|
DRM_COPY_TO_USER_IOCTL( (drm_version_t *)data, version, sizeof(version) );
|
|
|
|
return 0;
|
|
}
|
|
|
|
int DRM(open)(dev_t kdev, int flags, int fmt, DRM_STRUCTPROC *p)
|
|
{
|
|
drm_device_t *dev = NULL;
|
|
int retcode = 0;
|
|
|
|
dev = DRIVER_SOFTC(minor(kdev));
|
|
|
|
DRM_DEBUG( "open_count = %d\n", dev->open_count );
|
|
|
|
retcode = DRM(open_helper)(kdev, flags, fmt, p, dev);
|
|
|
|
if ( !retcode ) {
|
|
atomic_inc( &dev->counts[_DRM_STAT_OPENS] );
|
|
DRM_LOCK();
|
|
#ifdef __FreeBSD__
|
|
device_busy(dev->device);
|
|
#endif
|
|
if ( !dev->open_count++ )
|
|
retcode = DRM(setup)( dev );
|
|
DRM_UNLOCK();
|
|
}
|
|
|
|
return retcode;
|
|
}
|
|
|
|
int DRM(close)(dev_t kdev, int flags, int fmt, DRM_STRUCTPROC *p)
|
|
{
|
|
drm_file_t *priv;
|
|
DRM_DEVICE;
|
|
int retcode = 0;
|
|
DRMFILE filp = (void *)(DRM_CURRENTPID);
|
|
|
|
DRM_DEBUG( "open_count = %d\n", dev->open_count );
|
|
|
|
DRM_LOCK();
|
|
|
|
priv = DRM(find_file_by_proc)(dev, p);
|
|
if (!priv) {
|
|
DRM_UNLOCK();
|
|
DRM_DEBUG("can't find authenticator\n");
|
|
return EINVAL;
|
|
}
|
|
|
|
DRIVER_PRERELEASE();
|
|
|
|
/* ========================================================
|
|
* Begin inline drm_release
|
|
*/
|
|
|
|
#ifdef __FreeBSD__
|
|
DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
|
|
DRM_CURRENTPID, (long)dev->device, dev->open_count );
|
|
#elif defined(__NetBSD__)
|
|
DRM_DEBUG( "pid = %d, device = 0x%lx, open_count = %d\n",
|
|
DRM_CURRENTPID, (long)&dev->device, dev->open_count);
|
|
#endif
|
|
|
|
if (dev->lock.hw_lock && _DRM_LOCK_IS_HELD(dev->lock.hw_lock->lock)
|
|
&& dev->lock.filp == filp) {
|
|
DRM_DEBUG("Process %d dead, freeing lock for context %d\n",
|
|
DRM_CURRENTPID,
|
|
_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
|
|
#if __HAVE_RELEASE
|
|
DRIVER_RELEASE();
|
|
#endif
|
|
DRM(lock_free)(dev,
|
|
&dev->lock.hw_lock->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. */
|
|
}
|
|
#if __HAVE_RELEASE
|
|
else if ( dev->lock.hw_lock ) {
|
|
/* The lock is required to reclaim buffers */
|
|
for (;;) {
|
|
if ( !dev->lock.hw_lock ) {
|
|
/* Device has been unregistered */
|
|
retcode = DRM_ERR(EINTR);
|
|
break;
|
|
}
|
|
if ( DRM(lock_take)( &dev->lock.hw_lock->lock,
|
|
DRM_KERNEL_CONTEXT ) ) {
|
|
dev->lock.pid = DRM_CURRENTPID;
|
|
dev->lock.lock_time = jiffies;
|
|
atomic_inc( &dev->counts[_DRM_STAT_LOCKS] );
|
|
break; /* Got lock */
|
|
}
|
|
/* Contention */
|
|
#if defined(__FreeBSD__) && __FreeBSD_version > 500000
|
|
retcode = msleep((void *)&dev->lock.lock_queue,
|
|
dev->dev_lock, PZERO | PCATCH, "drmlk2", 0);
|
|
#else
|
|
retcode = tsleep((void *)&dev->lock.lock_queue,
|
|
PZERO | PCATCH, "drmlk2", 0);
|
|
#endif
|
|
if (retcode)
|
|
break;
|
|
}
|
|
if (retcode == 0) {
|
|
DRIVER_RELEASE();
|
|
DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
|
|
DRM_KERNEL_CONTEXT );
|
|
}
|
|
}
|
|
#elif __HAVE_DMA
|
|
DRM(reclaim_buffers)( dev, (void *)priv->pid );
|
|
#endif
|
|
|
|
#if defined (__FreeBSD__) && (__FreeBSD_version >= 500000)
|
|
funsetown(&dev->buf_sigio);
|
|
#elif defined(__FreeBSD__)
|
|
funsetown(dev->buf_sigio);
|
|
#elif defined(__NetBSD__)
|
|
dev->buf_pgid = 0;
|
|
#endif /* __NetBSD__ */
|
|
|
|
if (--priv->refs == 0) {
|
|
TAILQ_REMOVE(&dev->files, priv, link);
|
|
DRM(free)( priv, sizeof(*priv), DRM_MEM_FILES );
|
|
}
|
|
|
|
/* ========================================================
|
|
* End inline drm_release
|
|
*/
|
|
|
|
atomic_inc( &dev->counts[_DRM_STAT_CLOSES] );
|
|
#ifdef __FreeBSD__
|
|
device_unbusy(dev->device);
|
|
#endif
|
|
if (--dev->open_count == 0) {
|
|
retcode = DRM(takedown)(dev);
|
|
}
|
|
|
|
DRM_UNLOCK();
|
|
|
|
return retcode;
|
|
}
|
|
|
|
/* DRM(ioctl) is called whenever a process performs an ioctl on /dev/drm.
|
|
*/
|
|
int DRM(ioctl)(dev_t kdev, u_long cmd, caddr_t data, int flags,
|
|
DRM_STRUCTPROC *p)
|
|
{
|
|
DRM_DEVICE;
|
|
int retcode = 0;
|
|
drm_ioctl_desc_t *ioctl;
|
|
int (*func)(DRM_IOCTL_ARGS);
|
|
int nr = DRM_IOCTL_NR(cmd);
|
|
drm_file_t *priv;
|
|
|
|
DRM_GET_PRIV_WITH_RETURN(priv, (DRMFILE)DRM_CURRENTPID);
|
|
|
|
atomic_inc( &dev->counts[_DRM_STAT_IOCTLS] );
|
|
++priv->ioctl_count;
|
|
|
|
#ifdef __FreeBSD__
|
|
DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
|
|
DRM_CURRENTPID, cmd, nr, (long)dev->device, priv->authenticated );
|
|
#elif defined(__NetBSD__)
|
|
DRM_DEBUG( "pid=%d, cmd=0x%02lx, nr=0x%02x, dev 0x%lx, auth=%d\n",
|
|
DRM_CURRENTPID, cmd, nr, (long)&dev->device, priv->authenticated );
|
|
#endif
|
|
|
|
switch (cmd) {
|
|
case FIONBIO:
|
|
case FIOASYNC:
|
|
return 0;
|
|
|
|
#ifdef __FreeBSD__
|
|
case FIOSETOWN:
|
|
return fsetown(*(int *)data, &dev->buf_sigio);
|
|
|
|
case FIOGETOWN:
|
|
#if (__FreeBSD_version >= 500000)
|
|
*(int *) data = fgetown(&dev->buf_sigio);
|
|
#else
|
|
*(int *) data = fgetown(dev->buf_sigio);
|
|
#endif
|
|
return 0;
|
|
#endif /* __FreeBSD__ */
|
|
#ifdef __NetBSD__
|
|
case TIOCSPGRP:
|
|
dev->buf_pgid = *(int *)data;
|
|
return 0;
|
|
|
|
case TIOCGPGRP:
|
|
*(int *)data = dev->buf_pgid;
|
|
return 0;
|
|
#endif /* __NetBSD__ */
|
|
}
|
|
|
|
if (nr >= DRIVER_IOCTL_COUNT || IOCGROUP(cmd) != DRM_IOCTL_BASE)
|
|
return EINVAL;
|
|
|
|
ioctl = &DRM(ioctls)[nr];
|
|
func = ioctl->func;
|
|
|
|
if (func == NULL) {
|
|
DRM_DEBUG( "no function\n" );
|
|
return EINVAL;
|
|
}
|
|
if ((ioctl->root_only && DRM_SUSER(p)) || (ioctl->auth_needed &&
|
|
!priv->authenticated))
|
|
return EACCES;
|
|
|
|
retcode = func(kdev, cmd, data, flags, p, (void *)DRM_CURRENTPID);
|
|
|
|
return DRM_ERR(retcode);
|
|
}
|
|
|
|
int DRM(lock)( DRM_IOCTL_ARGS )
|
|
{
|
|
DRM_DEVICE;
|
|
drm_lock_t lock;
|
|
int ret = 0;
|
|
|
|
DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) );
|
|
|
|
if ( lock.context == DRM_KERNEL_CONTEXT ) {
|
|
DRM_ERROR( "Process %d using kernel context %d\n",
|
|
DRM_CURRENTPID, lock.context );
|
|
return DRM_ERR(EINVAL);
|
|
}
|
|
|
|
DRM_DEBUG( "%d (pid %d) requests lock (0x%08x), flags = 0x%08x\n",
|
|
lock.context, DRM_CURRENTPID,
|
|
dev->lock.hw_lock->lock, lock.flags );
|
|
|
|
#if __HAVE_DMA_QUEUE
|
|
if ( lock.context < 0 )
|
|
return DRM_ERR(EINVAL);
|
|
#endif
|
|
|
|
DRM_LOCK();
|
|
for (;;) {
|
|
if (DRM(lock_take)(&dev->lock.hw_lock->lock, lock.context)) {
|
|
dev->lock.filp = (void *)DRM_CURRENTPID;
|
|
dev->lock.lock_time = jiffies;
|
|
atomic_inc(&dev->counts[_DRM_STAT_LOCKS]);
|
|
break; /* Got lock */
|
|
}
|
|
|
|
/* Contention */
|
|
#if defined(__FreeBSD__) && __FreeBSD_version > 500000
|
|
ret = msleep((void *)&dev->lock.lock_queue, &dev->dev_lock,
|
|
PZERO | PCATCH, "drmlk2", 0);
|
|
#else
|
|
ret = tsleep((void *)&dev->lock.lock_queue, PZERO | PCATCH,
|
|
"drmlk2", 0);
|
|
#endif
|
|
if (ret != 0)
|
|
break;
|
|
}
|
|
DRM_UNLOCK();
|
|
DRM_DEBUG( "%d %s\n", lock.context, ret ? "interrupted" : "has lock" );
|
|
|
|
if (ret != 0)
|
|
return ret;
|
|
|
|
/* XXX: Add signal blocking here */
|
|
|
|
#if __HAVE_DMA_QUIESCENT
|
|
if (lock.flags & _DRM_LOCK_QUIESCENT) {
|
|
DRIVER_DMA_QUIESCENT();
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
int DRM(unlock)( DRM_IOCTL_ARGS )
|
|
{
|
|
DRM_DEVICE;
|
|
drm_lock_t lock;
|
|
|
|
DRM_COPY_FROM_USER_IOCTL( lock, (drm_lock_t *)data, sizeof(lock) ) ;
|
|
|
|
if ( lock.context == DRM_KERNEL_CONTEXT ) {
|
|
DRM_ERROR( "Process %d using kernel context %d\n",
|
|
DRM_CURRENTPID, lock.context );
|
|
return DRM_ERR(EINVAL);
|
|
}
|
|
|
|
atomic_inc( &dev->counts[_DRM_STAT_UNLOCKS] );
|
|
|
|
DRM_LOCK();
|
|
DRM(lock_transfer)( dev, &dev->lock.hw_lock->lock,
|
|
DRM_KERNEL_CONTEXT );
|
|
#if __HAVE_DMA_SCHEDULE
|
|
DRM(dma_schedule)( dev, 1 );
|
|
#endif
|
|
|
|
if ( DRM(lock_free)( dev, &dev->lock.hw_lock->lock,
|
|
DRM_KERNEL_CONTEXT ) ) {
|
|
DRM_ERROR( "\n" );
|
|
}
|
|
DRM_UNLOCK();
|
|
|
|
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 */
|