From: Grazvydas Ignotas <notasas@gmail.com>
Date: Sun, 1 Jun 2014 22:24:28 +0000 (+0300)
Subject: Revert "arm: mm: hugetlb WT hack"
X-Git-Tag: sz_173~102
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=6f4b131c8dee8f5bdfb4a254d4a610e6956f26bc

Revert "arm: mm: hugetlb WT hack"

This reverts commit f89d2c1ea0e0d14122ad3d480da6e4a9917111e4.
DraStic suffers performance degradation with WT, it needs to be
configurable. We'll use different hack on madvise().
---

diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c
index 1ca732f93224..0a5191ec120e 100644
--- a/arch/arm/mm/mmu.c
+++ b/arch/arm/mm/mmu.c
@@ -572,12 +572,6 @@ static void __init build_mem_type_table(void)
 
 	arm_hugepmdprotval = mem_types[MT_MEMORY].prot_sect | PMD_SECT_AP_READ
 				| PMD_SECT_nG;
-
-	/* HACK: make huge pages WT
-	 * XXX: mm will not know nothing about this..
-	 * FIXME: should only do it on Cortex-A8 or below */
-	arm_hugepmdprotval &= ~(PMD_SECT_WB | PMD_SECT_TEX(1));
-	arm_hugepmdprotval |= PMD_SECT_WT;
 #endif
 
 }