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Revert "introduce two APIs for page attribute" 

This reverts commit 1ac2f7d55b.
This commit is contained in:
Ingo Molnar 2008-08-21 13:46:33 +02:00
parent 9326d61bf6
commit cacf890694
2 changed files with 8 additions and 53 deletions
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58
arch/x86/mm/pageattr.c
View File

@ -752,12 +752,12 @@ static inline int cache_attr(pgprot_t attr)
(_PAGE_PAT | _PAGE_PAT_LARGE | _PAGE_PWT | _PAGE_PCD);
}
static int do_change_page_attr_set_clr(unsigned long addr, int numpages,
static int change_page_attr_set_clr(unsigned long addr, int numpages,
pgprot_t mask_set, pgprot_t mask_clr,
int force_split, int *tlb_flush)
int force_split)
{
struct cpa_data cpa;
int ret, checkalias;
int ret, cache, checkalias;
/*
* Check, if we are requested to change a not supported
@ -795,22 +795,9 @@ static int do_change_page_attr_set_clr(unsigned long addr, int numpages,
/*
* Check whether we really changed something:
*/
*tlb_flush = cpa.flushtlb;
cpa_fill_pool(NULL);
return ret;
}
static int change_page_attr_set_clr(unsigned long addr, int numpages,
pgprot_t mask_set, pgprot_t mask_clr,
int force_split)
{
int cache, flush_cache = 0, ret;
ret = do_change_page_attr_set_clr(addr, numpages, mask_set, mask_clr,
force_split, &flush_cache);
if (!flush_cache)
if (!cpa.flushtlb)
goto out;
/*
* No need to flush, when we did not set any of the caching
* attributes:
@ -827,7 +814,10 @@ static int change_page_attr_set_clr(unsigned long addr, int numpages,
cpa_flush_range(addr, numpages, cache);
else
cpa_flush_all(cache);
out:
cpa_fill_pool(NULL);
return ret;
}
@ -865,30 +855,6 @@ int set_memory_uc(unsigned long addr, int numpages)
}
EXPORT_SYMBOL(set_memory_uc);
int set_memory_uc_noflush(unsigned long addr, int numpages)
{
int flush;
/*
* for now UC MINUS. see comments in ioremap_nocache()
*/
if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
_PAGE_CACHE_UC_MINUS, NULL))
return -EINVAL;
/*
* for now UC MINUS. see comments in ioremap_nocache()
*/
return do_change_page_attr_set_clr(addr, numpages,
__pgprot(_PAGE_CACHE_UC_MINUS),
__pgprot(0), 0, &flush);
}
EXPORT_SYMBOL(set_memory_uc_noflush);
void set_memory_flush_all(void)
{
cpa_flush_all(1);
}
EXPORT_SYMBOL(set_memory_flush_all);
int _set_memory_wc(unsigned long addr, int numpages)
{
return change_page_attr_set(addr, numpages,
@ -963,14 +929,6 @@ int set_pages_uc(struct page *page, int numpages)
}
EXPORT_SYMBOL(set_pages_uc);
int set_pages_uc_noflush(struct page *page, int numpages)
{
unsigned long addr = (unsigned long)page_address(page);
return set_memory_uc_noflush(addr, numpages);
}
EXPORT_SYMBOL(set_pages_uc_noflush);
int set_pages_wb(struct page *page, int numpages)
{
unsigned long addr = (unsigned long)page_address(page);

3
include/asm-x86/cacheflush.h
View File

@ -57,8 +57,6 @@ int _set_memory_uc(unsigned long addr, int numpages);
int _set_memory_wc(unsigned long addr, int numpages);
int _set_memory_wb(unsigned long addr, int numpages);
int set_memory_uc(unsigned long addr, int numpages);
int set_memory_uc_noflush(unsigned long addr, int numpages);
void set_memory_flush_all(void);
int set_memory_wc(unsigned long addr, int numpages);
int set_memory_wb(unsigned long addr, int numpages);
int set_memory_x(unsigned long addr, int numpages);
@ -89,7 +87,6 @@ int set_memory_4k(unsigned long addr, int numpages);
*/
int set_pages_uc(struct page *page, int numpages);
int set_pages_uc_noflush(struct page *page, int numpages);
int set_pages_wb(struct page *page, int numpages);
int set_pages_x(struct page *page, int numpages);
int set_pages_nx(struct page *page, int numpages);