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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h')
-rw-r--r--ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h96
1 files changed, 0 insertions, 96 deletions
diff --git a/ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h b/ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h
deleted file mode 100644
index 2446a731..00000000
--- a/ANDROID_3.4.5/arch/microblaze/include/asm/highmem.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * highmem.h: virtual kernel memory mappings for high memory
- *
- * Used in CONFIG_HIGHMEM systems for memory pages which
- * are not addressable by direct kernel virtual addresses.
- *
- * Copyright (C) 1999 Gerhard Wichert, Siemens AG
- * Gerhard.Wichert@pdb.siemens.de
- *
- *
- * Redesigned the x86 32-bit VM architecture to deal with
- * up to 16 Terabyte physical memory. With current x86 CPUs
- * we now support up to 64 Gigabytes physical RAM.
- *
- * Copyright (C) 1999 Ingo Molnar <mingo@redhat.com>
- */
-#ifndef _ASM_HIGHMEM_H
-#define _ASM_HIGHMEM_H
-
-#ifdef __KERNEL__
-
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/uaccess.h>
-#include <asm/fixmap.h>
-
-extern pte_t *kmap_pte;
-extern pgprot_t kmap_prot;
-extern pte_t *pkmap_page_table;
-
-/*
- * Right now we initialize only a single pte table. It can be extended
- * easily, subsequent pte tables have to be allocated in one physical
- * chunk of RAM.
- */
-/*
- * We use one full pte table with 4K pages. And with 16K/64K/256K pages pte
- * table covers enough memory (32MB/512MB/2GB resp.), so that both FIXMAP
- * and PKMAP can be placed in a single pte table. We use 512 pages for PKMAP
- * in case of 16K/64K/256K page sizes.
- */
-
-#define PKMAP_ORDER PTE_SHIFT
-#define LAST_PKMAP (1 << PKMAP_ORDER)
-
-#define PKMAP_BASE ((FIXADDR_START - PAGE_SIZE * (LAST_PKMAP + 1)) \
- & PMD_MASK)
-
-#define LAST_PKMAP_MASK (LAST_PKMAP - 1)
-#define PKMAP_NR(virt) ((virt - PKMAP_BASE) >> PAGE_SHIFT)
-#define PKMAP_ADDR(nr) (PKMAP_BASE + ((nr) << PAGE_SHIFT))
-
-extern void *kmap_high(struct page *page);
-extern void kunmap_high(struct page *page);
-extern void *kmap_atomic_prot(struct page *page, pgprot_t prot);
-extern void __kunmap_atomic(void *kvaddr);
-
-static inline void *kmap(struct page *page)
-{
- might_sleep();
- if (!PageHighMem(page))
- return page_address(page);
- return kmap_high(page);
-}
-
-static inline void kunmap(struct page *page)
-{
- BUG_ON(in_interrupt());
- if (!PageHighMem(page))
- return;
- kunmap_high(page);
-}
-
-static inline void *__kmap_atomic(struct page *page)
-{
- return kmap_atomic_prot(page, kmap_prot);
-}
-
-static inline struct page *kmap_atomic_to_page(void *ptr)
-{
- unsigned long idx, vaddr = (unsigned long) ptr;
- pte_t *pte;
-
- if (vaddr < FIXADDR_START)
- return virt_to_page(ptr);
-
- idx = virt_to_fix(vaddr);
- pte = kmap_pte - (idx - FIX_KMAP_BEGIN);
- return pte_page(*pte);
-}
-
-#define flush_cache_kmaps() { flush_icache(); flush_dcache(); }
-
-#endif /* __KERNEL__ */
-
-#endif /* _ASM_HIGHMEM_H */