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| author | Sage Weil <sage@inktank.com> | 2013-08-15 11:11:45 -0700 |
|---|---|---|
| committer | Sage Weil <sage@inktank.com> | 2013-08-15 11:11:45 -0700 |
| commit | ee3e542fec6e69bc9fb668698889a37d93950ddf (patch) | |
| tree | e74ee766a4764769ef1d3d45d266b4dea64101d3 /drivers/gpu/drm/drm_ioctl.c | |
| parent | fe2a801b50c0bb8039d627e5ae1fec249d10ff39 (diff) | |
| parent | f1d6e17f540af37bb1891480143669ba7636c4cf (diff) | |
Merge remote-tracking branch 'linus/master' into testing
Diffstat (limited to 'drivers/gpu/drm/drm_ioctl.c')
| -rw-r--r-- | drivers/gpu/drm/drm_ioctl.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c index e77bd8b57df..ffd7a7ba70d 100644 --- a/drivers/gpu/drm/drm_ioctl.c +++ b/drivers/gpu/drm/drm_ioctl.c @@ -38,6 +38,9 @@ #include <linux/pci.h> #include <linux/export.h> +#ifdef CONFIG_X86 +#include <asm/mtrr.h> +#endif /** * Get the bus id. @@ -181,7 +184,17 @@ int drm_getmap(struct drm_device *dev, void *data, map->type = r_list->map->type; map->flags = r_list->map->flags; map->handle = (void *)(unsigned long) r_list->user_token; - map->mtrr = r_list->map->mtrr; + +#ifdef CONFIG_X86 + /* + * There appears to be exactly one user of the mtrr index: dritest. + * It's easy enough to keep it working on non-PAT systems. + */ + map->mtrr = phys_wc_to_mtrr_index(r_list->map->mtrr); +#else + map->mtrr = -1; +#endif + mutex_unlock(&dev->struct_mutex); return 0; |