From b0da5df90a76e4e79c356fdbc90211a8e21f095c Mon Sep 17 00:00:00 2001 From: Eric Anholt Date: Thu, 4 Aug 2005 07:42:01 +0000 Subject: Fix the MGA driver on BSD by passing in the proper chipset flags to the driver's preinit routine, and by using DRM_COPY_TO_USER_IOCTL when copying out to an ioctl's data pointer. Pulled from the latest version of my drm-hook-rename.diff and only compile-tested after that. --- shared-core/mga_dma.c | 38 ++++++++++++++++++-------------------- 1 file changed, 18 insertions(+), 20 deletions(-) (limited to 'shared-core/mga_dma.c') diff --git a/shared-core/mga_dma.c b/shared-core/mga_dma.c index cb2b2561..70a1f1b3 100644 --- a/shared-core/mga_dma.c +++ b/shared-core/mga_dma.c @@ -723,6 +723,9 @@ int mga_dma_bootstrap(DRM_IOCTL_ARGS) DRM_DEVICE; drm_mga_dma_bootstrap_t bootstrap; int err; + static const int modes[] = { 0, 1, 2, 2, 4, 4, 4, 4 }; + const drm_mga_private_t * const dev_priv = + (drm_mga_private_t *) dev->dev_private; DRM_COPY_FROM_USER_IOCTL(bootstrap, @@ -730,31 +733,26 @@ int mga_dma_bootstrap(DRM_IOCTL_ARGS) sizeof(bootstrap)); err = mga_do_dma_bootstrap(dev, & bootstrap); - if (! err) { - static const int modes[] = { 0, 1, 2, 2, 4, 4, 4, 4 }; - const drm_mga_private_t * const dev_priv = - (drm_mga_private_t *) dev->dev_private; - - if (dev_priv->agp_textures != NULL) { - bootstrap.texture_handle = dev_priv->agp_textures->offset; - bootstrap.texture_size = dev_priv->agp_textures->size; - } - else { - bootstrap.texture_handle = 0; - bootstrap.texture_size = 0; - } + if (err) { + mga_do_cleanup_dma(dev); + return err; + } - bootstrap.agp_mode = modes[ bootstrap.agp_mode & 0x07 ]; - if (DRM_COPY_TO_USER( (void __user *) data, & bootstrap, - sizeof(bootstrap))) { - err = DRM_ERR(EFAULT); - } + if (dev_priv->agp_textures != NULL) { + bootstrap.texture_handle = dev_priv->agp_textures->offset; + bootstrap.texture_size = dev_priv->agp_textures->size; } else { - mga_do_cleanup_dma(dev); + bootstrap.texture_handle = 0; + bootstrap.texture_size = 0; } - return err; + bootstrap.agp_mode = modes[bootstrap.agp_mode & 0x07]; + + DRM_COPY_TO_USER_IOCTL((drm_mga_dma_bootstrap_t __user *)data, + bootstrap, sizeof(bootstrap)); + + return 0; } -- cgit v1.2.3