leandrof/linux
1
0
Fork 0
forked from Minki/linux
Code Issues Pull Requests Packages Projects Releases Wiki Activity

x86: PAT proper tracking of set_memory_uc and friends

Browse Source 
Big thinko in pat memtype tracking code. reserve_memtype should be called
with physical address and not virtual address.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
venkatesh.pallipadi@intel.com 2008-08-20 16:45:51 -07:00 committed by Ingo Molnar
parent b2a6a58ca6
commit c15238df3b
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/mm/pageattr.c
View File

@ -849,7 +849,7 @@ int set_memory_uc(unsigned long addr, int numpages)
/*
* for now UC MINUS. see comments in ioremap_nocache()
*/
if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
_PAGE_CACHE_UC_MINUS, NULL))
return -EINVAL;
@ -868,7 +868,7 @@ int set_memory_wc(unsigned long addr, int numpages)
if (!pat_enabled)
return set_memory_uc(addr, numpages);
if (reserve_memtype(addr, addr + numpages * PAGE_SIZE,
if (reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
_PAGE_CACHE_WC, NULL))
return -EINVAL;
@ -884,7 +884,7 @@ int _set_memory_wb(unsigned long addr, int numpages)
int set_memory_wb(unsigned long addr, int numpages)
{
free_memtype(addr, addr + numpages * PAGE_SIZE);
free_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE);
return _set_memory_wb(addr, numpages);
}