Initial port of savage to FreeBSD for the AGP and !ShadowStatus case. Adds

    drm_mtrr_{add,del} for handling the MTRR setup. Still has a LOR issue
    with DRM_VERIFYAREA_READ/DRM_COPY_FROM_USER_UNCHECKED in savage_bci.c
    -- this won't work with the fine-grained locking in use, and just doing
    a single copyin to a temporary will probably work fine. Also note that
    the module leaks approximately 4 kb on unload.

1 files changed, 15 insertions, 0 deletions

diff --git a/linux-core/drmP.h b/linux-core/drmP.h
index 7b344c7a..8044780b 100644
--- a/linux-core/drmP.h
+++ b/linux-core/drmP.h
@@ -763,6 +763,21 @@ static inline int drm_core_has_MTRR(struct drm_device *dev)
 {
 	return drm_core_check_feature(dev, DRIVER_USE_MTRR);
 }
+
+#define DRM_MTRR_WC		MTRR_TYPE_WRCOMB
+
+static inline int drm_mtrr_add(unsigned long offset, unsigned long size,
+			       unsigned int flags)
+{
+	return mtrr_add(offset, size, flags, 1);
+}
+
+static inline int drm_mtrr_del(int handle, unsigned long offset,
+			       unsigned long size, unsigned int flags)
+{
+	return mtrr_del(handle, offset, size);
+}
+
 #else
 #define drm_core_has_MTRR(dev) (0)
 #endif