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authorSam Ravnborg <sam@ravnborg.org>2012-07-26 15:02:19 +0400
committerDavid S. Miller <davem@davemloft.net>2012-07-27 03:46:16 +0400
commit1b6d06d820df6822416270f46af57f5964137b42 (patch)
tree1926a167a284fb84620fca94226a8141f96e5df7 /arch
parentc00db32122e17120eb87d0f1f6723c1c4740fa78 (diff)
downloadlinux-1b6d06d820df6822416270f46af57f5964137b42.tar.xz
sparc32: drop fixmap.h
sparc32 does not support fixmaps - so do not pretend so by having the fixmap.h file. Move relevant parts to vaddrs.h. I looked at simplifying this even more but failed to understand the reasoning behind the extra guard page involved and due to missing testing possibilities only the trivial conversion was done. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/sparc/include/asm/fixmap.h26
-rw-r--r--arch/sparc/include/asm/highmem.h1
-rw-r--r--arch/sparc/include/asm/vaddrs.h22
-rw-r--r--arch/sparc/mm/highmem.c7
4 files changed, 26 insertions, 30 deletions
diff --git a/arch/sparc/include/asm/fixmap.h b/arch/sparc/include/asm/fixmap.h
deleted file mode 100644
index 0bdec9385a80..000000000000
--- a/arch/sparc/include/asm/fixmap.h
+++ /dev/null
@@ -1,26 +0,0 @@
-/* Highmem related constants */
-
-#ifndef _ASM_FIXMAP_H
-#define _ASM_FIXMAP_H
-
-#include <asm/kmap_types.h>
-
-enum fixed_addresses {
- FIX_HOLE,
-#ifdef CONFIG_HIGHMEM
- FIX_KMAP_BEGIN,
- FIX_KMAP_END = (KM_TYPE_NR * NR_CPUS),
-#endif
- __end_of_fixed_addresses
-};
-
-/* Leave one empty page between IO pages at 0xfd000000 and
- * the top of the fixmap.
- */
-#define FIXADDR_TOP (0xfcfff000UL)
-#define FIXADDR_SIZE ((FIX_KMAP_END + 1) << PAGE_SHIFT)
-#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
-
-#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
-
-#endif
diff --git a/arch/sparc/include/asm/highmem.h b/arch/sparc/include/asm/highmem.h
index a31b2a1f0866..639338353909 100644
--- a/arch/sparc/include/asm/highmem.h
+++ b/arch/sparc/include/asm/highmem.h
@@ -21,7 +21,6 @@
#ifdef __KERNEL__
#include <linux/interrupt.h>
-#include <asm/fixmap.h>
#include <asm/vaddrs.h>
#include <asm/kmap_types.h>
#include <asm/pgtable.h>
diff --git a/arch/sparc/include/asm/vaddrs.h b/arch/sparc/include/asm/vaddrs.h
index da6535d88a72..c3dbcf902034 100644
--- a/arch/sparc/include/asm/vaddrs.h
+++ b/arch/sparc/include/asm/vaddrs.h
@@ -30,6 +30,28 @@
*/
#define SRMMU_NOCACHE_ALCRATIO 64 /* 256 pages per 64MB of system RAM */
+#ifndef __ASSEMBLY__
+#include <asm/kmap_types.h>
+
+enum fixed_addresses {
+ FIX_HOLE,
+#ifdef CONFIG_HIGHMEM
+ FIX_KMAP_BEGIN,
+ FIX_KMAP_END = (KM_TYPE_NR * NR_CPUS),
+#endif
+ __end_of_fixed_addresses
+};
+#endif
+
+/* Leave one empty page between IO pages at 0xfd000000 and
+ * the top of the fixmap.
+ */
+#define FIXADDR_TOP (0xfcfff000UL)
+#define FIXADDR_SIZE ((FIX_KMAP_END + 1) << PAGE_SHIFT)
+#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE)
+
+#define __fix_to_virt(x) (FIXADDR_TOP - ((x) << PAGE_SHIFT))
+
#define SUN4M_IOBASE_VADDR 0xfd000000 /* Base for mapping pages */
#define IOBASE_VADDR 0xfe000000
#define IOBASE_END 0xfe600000
diff --git a/arch/sparc/mm/highmem.c b/arch/sparc/mm/highmem.c
index 856432a109d2..4d5f8b3c4090 100644
--- a/arch/sparc/mm/highmem.c
+++ b/arch/sparc/mm/highmem.c
@@ -22,13 +22,14 @@
* shared by CPUs, and so precious, and establishing them requires IPI.
* Atomic kmaps are lightweight and we may have NCPUS more of them.
*/
-#include <linux/mm.h>
#include <linux/highmem.h>
#include <linux/export.h>
-#include <asm/pgalloc.h>
+#include <linux/mm.h>
+
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
-#include <asm/fixmap.h>
+#include <asm/pgalloc.h>
+#include <asm/vaddrs.h>
void *kmap_atomic(struct page *page)
{