68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
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* Copyright 2007 Dave Airlie
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* Copyright 2007 Alex Deucher
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* Copyright 2007 Michel Dänzer
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* Copyright 2007 Roland Scheidegger
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* Copyright 2007 Vladimir Dergachev
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* Copyright 2007 Nicolai Haehnle
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* Copyright 2007 Aapo Tahkola
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* Copyright 2007 Ben Skeggs
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* Copyright 2007 Jérôme Glisse
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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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* PRECISION INSIGHT 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 OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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* Authors:
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* Jerome Glisse <glisse@freedesktop.org>
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*/
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#include "drmP.h"
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#include "drm.h"
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#include "radeon_ms.h"
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/**
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* Called whenever a 32-bit process running under a 64-bit kernel
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* performs an ioctl on /dev/dri/card<n>.
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* \param filp file pointer.
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* \param cmd command.
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* \param arg user argument.
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* \return zero on success or negative number on failure.
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*/
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long radeon_ms_compat_ioctl(struct file *filp, unsigned int cmd,
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unsigned long arg)
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{
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unsigned int nr = DRM_IOCTL_NR(cmd);
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drm_ioctl_compat_t *fn = NULL;
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int ret;
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if (nr < DRM_COMMAND_BASE)
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return drm_compat_ioctl(filp, cmd, arg);
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lock_kernel();
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if (fn != NULL)
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ret = (*fn)(filp, cmd, arg);
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else
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ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
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unlock_kernel();
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return ret;
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}
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