/* sis_ds.h -- Private header for Direct Rendering Manager -*- linux-c -*- * Created: Mon Jan 4 10:05:05 1999 by sclin@sis.com.tw * * Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan. * 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, sublicense, * 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 NONINFRINGEMENT. IN NO EVENT SHALL * PRECISION INSIGHT 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: * Sung-Ching Lin * */ #ifndef __SIS_DS_H__ #define __SIS_DS_H__ /* Set Data Structure */ #define SET_SIZE 5000 typedef unsigned long ITEM_TYPE; typedef struct { ITEM_TYPE val; int alloc_next, free_next; } list_item_t; typedef struct { int alloc; int free; int trace; list_item_t list[SET_SIZE]; } set_t; set_t *setInit(void); int setAdd(set_t * set, ITEM_TYPE item); int setDel(set_t * set, ITEM_TYPE item); int setFirst(set_t * set, ITEM_TYPE * item); int setNext(set_t * set, ITEM_TYPE * item); int setDestroy(set_t * set); /* * GLX Hardware Device Driver common code * Copyright (C) 1999 Wittawat Yamwong * * 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, sublicense, * 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 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 NONINFRINGEMENT. IN NO EVENT SHALL * KEITH WHITWELL, OR ANY OTHER CONTRIBUTORS 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. * */ struct mem_block_t { struct mem_block_t *next; struct mem_block_t *heap; int ofs, size; int align; unsigned int free:1; unsigned int reserved:1; }; typedef struct mem_block_t TMemBlock; typedef struct mem_block_t *PMemBlock; /* a heap is just the first block in a chain */ typedef struct mem_block_t memHeap_t; static __inline__ int mmBlockSize(PMemBlock b) { return b->size; } static __inline__ int mmOffset(PMemBlock b) { return b->ofs; } static __inline__ void mmMarkReserved(PMemBlock b) { b->reserved = 1; } /* * input: total size in bytes * return: a heap pointer if OK, NULL if error */ memHeap_t *mmInit(int ofs, int size); /* * Allocate 'size' bytes with 2^align2 bytes alignment, * restrict the search to free memory after 'startSearch' * depth and back buffers should be in different 4mb banks * to get better page hits if possible * input: size = size of block * align2 = 2^align2 bytes alignment * startSearch = linear offset from start of heap to begin search * return: pointer to the allocated block, 0 if error */ PMemBlock mmAllocMem(memHeap_t * heap, int size, int align2, int startSearch); /* * Returns 1 if the block 'b' is part of the heap 'heap' */ int mmBlockInHeap(PMemBlock heap, PMemBlock b); /* * Free block starts at offset * input: pointer to a block * return: 0 if OK, -1 if error */ int mmFreeMem(PMemBlock b); /* For debuging purpose. */ void mmDumpMemInfo(memHeap_t * mmInit); #endif /* __SIS_DS_H__ */ 51' href='#n51'>51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 
/**
 * \file mga_ioc32.c
 *
 * 32-bit ioctl compatibility routines for the MGA DRM.
 *
 * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich
 *
 *
 * Copyright (C) Paul Mackerras 2005
 * Copyright (C) Egbert Eich 2003,2004
 * Copyright (C) Dave Airlie 2005
 * 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, sublicense,
 * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHOR 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.
 */

#include <linux/compat.h>

#include "drmP.h"
#include "drm.h"

#include "nouveau_drm.h"

/**
 * Called whenever a 32-bit process running under a 64-bit kernel
 * performs an ioctl on /dev/dri/card<n>.
 *
 * \param filp file pointer.
 * \param cmd command.
 * \param arg user argument.
 * \return zero on success or negative number on failure.
 */
long nouveau_compat_ioctl(struct file *filp, unsigned int cmd,
			 unsigned long arg)
{
	unsigned int nr = DRM_IOCTL_NR(cmd);
	drm_ioctl_compat_t *fn = NULL;
	int ret;

	if (nr < DRM_COMMAND_BASE)
		return drm_compat_ioctl(filp, cmd, arg);

#if 0
	if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(mga_compat_ioctls))
		fn = nouveau_compat_ioctls[nr - DRM_COMMAND_BASE];
#endif
	lock_kernel();	  /* XXX for now */
	if (fn != NULL)
		ret = (*fn)(filp, cmd, arg);
	else
		ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
	unlock_kernel();

	return ret;
}
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