linux-kernel - [tip:x86/mm] x86: Use new cache mode type in arch/x86/mm/ init

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Message-ID: <tip-2df58b6d35306e8dab48923c9fbe9e1ad17537e2@git.kernel.org>
Date:	Sun, 16 Nov 2014 02:55:54 -0800
From:	tip-bot for Juergen Gross <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	linux-kernel@...r.kernel.org, tglx@...utronix.de, hpa@...or.com,
	stefan.bader@...onical.com, mingo@...nel.org, jgross@...e.com
Subject: [tip:x86/mm] x86: Use new cache mode type in arch/x86/mm/
 init_64.c

Commit-ID:  2df58b6d35306e8dab48923c9fbe9e1ad17537e2
Gitweb:     http://git.kernel.org/tip/2df58b6d35306e8dab48923c9fbe9e1ad17537e2
Author:     Juergen Gross <jgross@...e.com>
AuthorDate: Mon, 3 Nov 2014 14:01:52 +0100
Committer:  Thomas Gleixner <tglx@...utronix.de>
CommitDate: Sun, 16 Nov 2014 11:04:25 +0100

x86: Use new cache mode type in arch/x86/mm/init_64.c

Instead of directly using the cache mode bits in the pte switch to
using the cache mode type.

Based-on-patch-by: Stefan Bader <stefan.bader@...onical.com>
Signed-off-by: Juergen Gross <jgross@...e.com>
Reviewed-by: Thomas Gleixner <tglx@...utronix.de>
Cc: stefan.bader@...onical.com
Cc: xen-devel@...ts.xensource.com
Cc: konrad.wilk@...cle.com
Cc: ville.syrjala@...ux.intel.com
Cc: david.vrabel@...rix.com
Cc: jbeulich@...e.com
Cc: toshi.kani@...com
Cc: plagnioj@...osoft.com
Cc: tomi.valkeinen@...com
Cc: bhelgaas@...gle.com
Link: http://lkml.kernel.org/r/1415019724-4317-7-git-send-email-jgross@suse.com
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
---
 arch/x86/mm/init_64.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index ebca30f..bd42786 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -337,12 +337,15 @@ pte_t * __init populate_extra_pte(unsigned long vaddr)
  * Create large page table mappings for a range of physical addresses.
  */
 static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
-						pgprot_t prot)
+					enum page_cache_mode cache)
 {
 	pgd_t *pgd;
 	pud_t *pud;
 	pmd_t *pmd;
+	pgprot_t prot;
 
+	pgprot_val(prot) = pgprot_val(PAGE_KERNEL_LARGE) |
+		pgprot_val(pgprot_4k_2_large(cachemode2pgprot(cache)));
 	BUG_ON((phys & ~PMD_MASK) || (size & ~PMD_MASK));
 	for (; size; phys += PMD_SIZE, size -= PMD_SIZE) {
 		pgd = pgd_offset_k((unsigned long)__va(phys));
@@ -365,12 +368,12 @@ static void __init __init_extra_mapping(unsigned long phys, unsigned long size,
 
 void __init init_extra_mapping_wb(unsigned long phys, unsigned long size)
 {
-	__init_extra_mapping(phys, size, PAGE_KERNEL_LARGE);
+	__init_extra_mapping(phys, size, _PAGE_CACHE_MODE_WB);
 }
 
 void __init init_extra_mapping_uc(unsigned long phys, unsigned long size)
 {
-	__init_extra_mapping(phys, size, PAGE_KERNEL_LARGE_NOCACHE);
+	__init_extra_mapping(phys, size, _PAGE_CACHE_MODE_UC);
 }
 
 /*
--
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