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drm.h
(25.25 KB)
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drmP.h
(60.47 KB)
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drm_agpsupport.c
(12.05 KB)
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drm_atomic.h
(3.48 KB)
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drm_auth.c
(6.12 KB)
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drm_buffer.c
(5.02 KB)
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drm_buffer.h
(4.55 KB)
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drm_bufs.c
(43.77 KB)
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drm_context.c
(12.07 KB)
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drm_core.h
(1.48 KB)
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drm_crtc.c
(97.29 KB)
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drm_crtc.h
(38.9 KB)
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drm_crtc_helper.c
(31.32 KB)
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drm_crtc_helper.h
(6.37 KB)
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drm_dma.c
(4.04 KB)
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drm_dp_helper.c
(4.5 KB)
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drm_dp_helper.h
(12.35 KB)
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drm_dp_iic_helper.c
(6.54 KB)
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drm_drv.c
(17.48 KB)
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drm_edid.c
(51.99 KB)
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drm_edid.h
(7.55 KB)
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drm_edid_modes.h
(33.57 KB)
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drm_fb_helper.c
(38.84 KB)
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drm_fb_helper.h
(4.21 KB)
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drm_fixed.h
(2.23 KB)
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drm_fops.c
(15.14 KB)
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drm_fourcc.h
(7.93 KB)
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drm_gem.c
(11.57 KB)
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drm_gem_names.c
(5.59 KB)
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drm_gem_names.h
(2.46 KB)
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drm_global.c
(3.16 KB)
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drm_global.h
(2.01 KB)
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drm_hashtab.c
(4.94 KB)
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drm_hashtab.h
(2.57 KB)
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drm_ioc32.c
(21.88 KB)
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drm_ioctl.c
(8.81 KB)
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drm_irq.c
(41.03 KB)
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drm_linux_list.h
(7.88 KB)
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drm_linux_list_sort.c
(2.53 KB)
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drm_lock.c
(10.27 KB)
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drm_mem_util.h
(1.77 KB)
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drm_memory.c
(3.78 KB)
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drm_mm.c
(19.2 KB)
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drm_mm.h
(8.52 KB)
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drm_mode.h
(12.16 KB)
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drm_modes.c
(33.66 KB)
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drm_os_freebsd.c
(11.36 KB)
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drm_os_freebsd.h
(17.72 KB)
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drm_pci.c
(12.35 KB)
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drm_pciids.h
(70.22 KB)
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drm_platform.c
(4.58 KB)
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drm_sarea.h
(2.64 KB)
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drm_scatter.c
(3.58 KB)
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drm_stub.c
(12.1 KB)
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drm_sysctl.c
(9.99 KB)
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drm_vm.c
(4.18 KB)
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ttm
Editing: drm_global.c
/************************************************************************** * * Copyright 2008-2009 VMware, Inc., Palo Alto, CA., USA * All Rights Reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sub license, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE * USE OR OTHER DEALINGS IN THE SOFTWARE. * **************************************************************************/ /* * Authors: Thomas Hellstrom <thellstrom-at-vmware-dot-com> */ #include <sys/cdefs.h> __FBSDID("$FreeBSD$"); #include <dev/drm2/drmP.h> #include <dev/drm2/drm_global.h> MALLOC_DEFINE(M_DRM_GLOBAL, "drm_global", "DRM Global Items"); struct drm_global_item { struct sx mutex; void *object; int refcount; }; static struct drm_global_item glob[DRM_GLOBAL_NUM]; void drm_global_init(void) { int i; for (i = 0; i < DRM_GLOBAL_NUM; ++i) { struct drm_global_item *item = &glob[i]; sx_init(&item->mutex, "drmgi"); item->object = NULL; item->refcount = 0; } } void drm_global_release(void) { int i; for (i = 0; i < DRM_GLOBAL_NUM; ++i) { struct drm_global_item *item = &glob[i]; MPASS(item->object == NULL); MPASS(item->refcount == 0); sx_destroy(&item->mutex); } } int drm_global_item_ref(struct drm_global_reference *ref) { int ret; struct drm_global_item *item = &glob[ref->global_type]; void *object; sx_xlock(&item->mutex); if (item->refcount == 0) { item->object = malloc(ref->size, M_DRM_GLOBAL, M_NOWAIT | M_ZERO); if (unlikely(item->object == NULL)) { ret = -ENOMEM; goto out_err; } ref->object = item->object; ret = ref->init(ref); if (unlikely(ret != 0)) goto out_err; } ++item->refcount; ref->object = item->object; object = item->object; sx_xunlock(&item->mutex); return 0; out_err: sx_xunlock(&item->mutex); item->object = NULL; return ret; } EXPORT_SYMBOL(drm_global_item_ref); void drm_global_item_unref(struct drm_global_reference *ref) { struct drm_global_item *item = &glob[ref->global_type]; sx_xlock(&item->mutex); MPASS(item->refcount != 0); MPASS(ref->object == item->object); if (--item->refcount == 0) { ref->release(ref); free(item->object, M_DRM_GLOBAL); item->object = NULL; } sx_xunlock(&item->mutex); } EXPORT_SYMBOL(drm_global_item_unref);
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