Revert last change, which is under an #ifdef __linux__ block so no used.

noticed by jsg@

diff --git a/sys/dev/pci/drm/ttm/ttm_bo_util.c b/sys/dev/pci/drm/ttm/ttm_bo_util.c
index c280ca4..26228cb 100644 (file)
--- a/sys/dev/pci/drm/ttm/ttm_bo_util.c
+++ b/sys/dev/pci/drm/ttm/ttm_bo_util.c
@@ -551,7 +551,7 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp)
                tmp = pgprot_noncached(tmp);
 #endif
 #if defined(__ia64__) || defined(__arm__) || defined(__aarch64__) || \
-    defined(__powerpc__) || defined(__mips__) || defined(__riscv64__)
+    defined(__powerpc__) || defined(__mips__)
        if (caching_flags & TTM_PL_FLAG_WC)
                tmp = pgprot_writecombine(tmp);
        else