/** * \file r128_ioc32.c * * 32-bit ioctl compatibility routines for the R128 DRM. * * \author Dave Airlie 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 #include "drmP.h" #include "drm.h" #include "r128_drm.h" typedef struct drm_r128_init32 { int func; unsigned int sarea_priv_offset; int is_pci; int cce_mode; int cce_secure; int ring_size; int usec_timeout; unsigned int fb_bpp; unsigned int front_offset, front_pitch; unsigned int back_offset, back_pitch; unsigned int depth_bpp; unsigned int depth_offset, depth_pitch; unsigned int span_offset; unsigned int fb_offset; unsigned int mmio_offset; unsigned int ring_offset; unsigned int ring_rptr_offset; unsigned int buffers_offset; unsigned int agp_textures_offset; } drm_r128_init32_t; static int compat_r128_init(struct file *file, unsigned int cmd, unsigned long arg) { drm_r128_init32_t init32; drm_r128_init_t __user *init; if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) return -EFAULT; init = compat_alloc_user_space(sizeof(*init)); if (!access_ok(VERIFY_WRITE, init, sizeof(*init)) || __put_user(init32.func, &init->func) || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset) || __put_user(init32.is_pci, &init->is_pci) || __put_user(init32.cce_mode, &init->cce_mode) || __put_user(init32.cce_secure, &init->cce_secure) || __put_user(init32.ring_size, &init->ring_size) || __put_user(init32.usec_timeout, &init->usec_timeout) || __put_user(init32.fb_bpp, &init->fb_bpp) || __put_user(init32.front_offset, &init->front_offset) || __put_user(init32.front_pitch, &init->front_pitch) || __put_user(init32.back_offset, &init->back_offset) || __put_user(init32.back_pitch, &init->back_pitch) || __put_user(init32.depth_bpp, &init->depth_bpp) || __put_user(init32.depth_offset, &init->depth_offset) || __put_user(init32.depth_pitch, &init->depth_pitch) || __put_user(init32.span_offset, &init->span_offset) || __put_user(init32.fb_offset, &init->fb_offset) || __put_user(init32.mmio_offset, &init->mmio_offset) || __put_user(init32.ring_offset, &init->ring_offset) || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset) || __put_user(init32.buffers_offset, &init->buffers_offset) || __put_user(init32.agp_textures_offset, &init->agp_textures_offset)) return -EFAULT; return drm_ioctl(file->f_dentry->d_inode, file, DRM_IOCTL_R128_INIT, (unsigned long)init); } typedef struct drm_r128_depth32 { int func; int n; u32 x; u32 y; u32 buffer; u32 mask; } drm_r128_depth32_t; static int compat_r128_depth(struct file *file, unsigned int cmd, unsigned long arg) { drm_r128_depth32_t depth32; drm_r128_depth_t __user *depth; if (copy_from_user(&depth32, (void __user *)arg, sizeof(depth32))) return -EFAULT; depth = compat_alloc_user_space(sizeof(*depth)); if (!access_ok(VERIFY_WRITE, depth, sizeof(*depth)) || __put_user(depth32.func, &depth->func) || __put_user(depth32.n, &depth->n) || __put_user((int __user *)(unsigned long)depth32.x, &depth->x) || __put_user((int __user *)(unsigned long)depth32.y, &depth->y) || __put_user((unsigned int __user *)(unsigned long)depth32.buffer, &depth->buffer) || __put_user((unsigned char __user *)(unsigned long)depth32.mask, &depth->mask)) return -EFAULT; return drm_ioctl(file->f_dentry->d_inode, file, DRM_IOCTL_R128_DEPTH, (unsigned long)depth); } typedef struct drm_r128_stipple32 { u32 mask; } drm_r128_stipple32_t; static int compat_r128_stipple(struct file *file, unsigned int cmd, unsigned long arg) { drm_r128_stipple32_t stipple32; drm_r128_stipple_t __user *stipple; if (copy_from_user(&stipple32, (void __user *)arg, sizeof(stipple32))) return -EFAULT; stipple = compat_alloc_user_space(sizeof(*stipple)); if (!access_ok(VERIFY_WRITE, stipple, sizeof(*stipple)) || __put_user((unsigned int __user *)(unsigned long)stipple32.mask, &stipple->mask)) return -EFAULT; return drm_ioctl(file->f_dentry->d_inode, file, DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple); } typedef struct drm_r128_getparam32 { int param; u32 value; } drm_r128_getparam32_t; static int compat_r128_getparam(struct file *file, unsigned int cmd, unsigned long arg) { drm_r128_getparam32_t getparam32; drm_r128_getparam_t __user *getparam; if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32))) return -EFAULT; getparam = compat_alloc_user_space(sizeof(*getparam)); if (!access_ok(VERIFY_WRITE, getparam, sizeof(*getparam)) || __put_user(getparam32.param, &getparam->param) || __put_user((void __user *)(unsigned long)getparam32.value, &getparam->value)) return -EFAULT; return drm_ioctl(file->f_dentry->d_inode, file, DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam); } drm_ioctl_compat_t *r128_compat_ioctls[] = { [DRM_R128_INIT] = compat_r128_init, [DRM_R128_DEPTH] = compat_r128_depth, [DRM_R128_STIPPLE] = compat_r128_stipple, [DRM_R128_GETPARAM] = compat_r128_getparam, }; /** * Called whenever a 32-bit process running under a 64-bit kernel * performs an ioctl on /dev/dri/card. * * \param filp file pointer. * \param cmd command. * \param arg user argument. * \return zero on success or negative number on failure. */ long r128_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 (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(r128_compat_ioctls)) fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE]; 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; } '#n133'>133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 

/**
 * \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 "mga_drm.h"

typedef struct drm32_mga_init {
	int func;
	u32 sarea_priv_offset;
	int chipset;
	int sgram;
	unsigned int maccess;
	unsigned int fb_cpp;
	unsigned int front_offset, front_pitch;
	unsigned int back_offset, back_pitch;
	unsigned int depth_cpp;
	unsigned int depth_offset, depth_pitch;
	unsigned int texture_offset[MGA_NR_TEX_HEAPS];
	unsigned int texture_size[MGA_NR_TEX_HEAPS];
	u32 fb_offset;
	u32 mmio_offset;
	u32 status_offset;
	u32 warp_offset;
	u32 primary_offset;
	u32 buffers_offset;
} drm_mga_init32_t;

static int compat_mga_init(struct file *file, unsigned int cmd,
			   unsigned long arg)
{
	drm_mga_init32_t init32;
	drm_mga_init_t __user *init;
	int err = 0, i;

	if (copy_from_user(&init32, (void __user *)arg, sizeof(init32)))
		return -EFAULT;

	init = compat_alloc_user_space(sizeof(*init));
	if (!access_ok(VERIFY_WRITE, init, sizeof(*init))
	    || __put_user(init32.func, &init->func)
	    || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset)
	    || __put_user(init32.chipset, &init->chipset)
	    || __put_user(init32.sgram, &init->sgram)
	    || __put_user(init32.maccess, &init->maccess)
	    || __put_user(init32.fb_cpp, &init->fb_cpp)
	    || __put_user(init32.front_offset, &init->front_offset)
	    || __put_user(init32.front_pitch, &init->front_pitch)
	    || __put_user(init32.back_offset, &init->back_offset)
	    || __put_user(init32.back_pitch, &init->back_pitch)
	    || __put_user(init32.depth_cpp, &init->depth_cpp)
	    || __put_user(init32.depth_offset, &init->depth_offset)
	    || __put_user(init32.depth_pitch, &init->depth_pitch)
	    || __put_user(init32.fb_offset, &init->fb_offset)
	    || __put_user(init32.mmio_offset, &init->mmio_offset)
	    || __put_user(init32.status_offset, &init->status_offset)
	    || __put_user(init32.warp_offset, &init->warp_offset)
	    || __put_user(init32.primary_offset, &init->primary_offset)
	    || __put_user(init32.buffers_offset, &init->buffers_offset))
		return -EFAULT;

	for (i=0; i<MGA_NR_TEX_HEAPS; i++)
	{
		err |= __put_user(init32.texture_offset[i], &init->texture_offset[i]);
		err |= __put_user(init32.texture_size[i], &init->texture_size[i]);
	}
	if (err)
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_MGA_INIT, (unsigned long) init);
}


typedef struct drm_mga_getparam32 {
	int param;
	u32 value;
} drm_mga_getparam32_t;