diff options
| -rw-r--r-- | linux-core/Makefile.kernel | 1 | ||||
| -rw-r--r-- | linux-core/nouveau_drv.c | 3 | ||||
| -rw-r--r-- | linux-core/nouveau_ioc32.c | 73 | ||||
| -rw-r--r-- | shared-core/nouveau_drv.h | 3 |
4 files changed, 80 insertions, 0 deletions
diff --git a/linux-core/Makefile.kernel b/linux-core/Makefile.kernel index 950259bd..71605de6 100644 --- a/linux-core/Makefile.kernel +++ b/linux-core/Makefile.kernel @@ -35,6 +35,7 @@ radeon-objs += radeon_ioc32.o mga-objs += mga_ioc32.o r128-objs += r128_ioc32.o i915-objs += i915_ioc32.o +nouveau-objs += nouveau_ioc32.o endif obj-m += drm.o diff --git a/linux-core/nouveau_drv.c b/linux-core/nouveau_drv.c index 8ad1d849..57b55ce1 100644 --- a/linux-core/nouveau_drv.c +++ b/linux-core/nouveau_drv.c @@ -60,6 +60,9 @@ static struct drm_driver driver = { .mmap = drm_mmap, .poll = drm_poll, .fasync = drm_fasync, +#if defined(CONFIG_COMPAT) && LINUX_VERSION_CODE > KERNEL_VERSION(2,6,9) + .compat_ioctl = nouveau_compat_ioctl, +#endif }, .pci_driver = { .name = DRIVER_NAME, diff --git a/linux-core/nouveau_ioc32.c b/linux-core/nouveau_ioc32.c new file mode 100644 index 00000000..a752a581 --- /dev/null +++ b/linux-core/nouveau_ioc32.c @@ -0,0 +1,73 @@ +/** + * \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 <linux/ioctl32.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; +} diff --git a/shared-core/nouveau_drv.h b/shared-core/nouveau_drv.h index 4b35e6d1..f579026a 100644 --- a/shared-core/nouveau_drv.h +++ b/shared-core/nouveau_drv.h @@ -171,6 +171,9 @@ extern void nouveau_irq_preinstall(drm_device_t*); extern void nouveau_irq_postinstall(drm_device_t*); extern void nouveau_irq_uninstall(drm_device_t*); +extern long nouveau_compat_ioctl(struct file *filp, unsigned int cmd, + unsigned long arg); + #if defined(__powerpc__) #define NV_READ(reg) in_be32((void __iomem *)(dev_priv->mmio)->handle + (reg) ) #define NV_WRITE(reg,val) out_be32((void __iomem *)(dev_priv->mmio)->handle + (reg) , (val) ) |