AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

sparc64: Use PAGE_OFFSET instead of a magic constant.

Browse Source 
This pertains to all of the computations of the kernel fast
TLB miss xor values.

Based upon a patch by Bob Picco.

Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Bob Picco <bob.picco@oracle.com>
This commit is contained in:
David S. Miller 2013-09-18 12:00:00 -07:00
parent c920745e69
commit 922631b988
1 changed files with 7 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
arch/sparc/mm/init_64.c
View File

@ -1722,7 +1722,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
#ifndef CONFIG_DEBUG_PAGEALLOC
if (cpu_pgsz_mask & HV_PGSZ_MASK_256MB) {
kern_linear_pte_xor[1] = (_PAGE_VALID | _PAGE_SZ256MB_4V) ^
0xfffff80000000000UL;
PAGE_OFFSET;
kern_linear_pte_xor[1] |= (_PAGE_CP_4V | _PAGE_CV_4V |
_PAGE_P_4V | _PAGE_W_4V);
} else {
@ -1731,7 +1731,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
if (cpu_pgsz_mask & HV_PGSZ_MASK_2GB) {
kern_linear_pte_xor[2] = (_PAGE_VALID | _PAGE_SZ2GB_4V) ^
0xfffff80000000000UL;
PAGE_OFFSET;
kern_linear_pte_xor[2] |= (_PAGE_CP_4V | _PAGE_CV_4V |
_PAGE_P_4V | _PAGE_W_4V);
} else {
@ -1740,7 +1740,7 @@ static void __init sun4v_linear_pte_xor_finalize(void)
if (cpu_pgsz_mask & HV_PGSZ_MASK_16GB) {
kern_linear_pte_xor[3] = (_PAGE_VALID | _PAGE_SZ16GB_4V) ^
0xfffff80000000000UL;
PAGE_OFFSET;
kern_linear_pte_xor[3] |= (_PAGE_CP_4V | _PAGE_CV_4V |
_PAGE_P_4V | _PAGE_W_4V);
} else {
@ -2261,10 +2261,10 @@ static void __init sun4u_pgprot_init(void)
__ACCESS_BITS_4U | _PAGE_E_4U);
#ifdef CONFIG_DEBUG_PAGEALLOC
kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
kern_linear_pte_xor[0] = _PAGE_VALID ^ PAGE_OFFSET;
#else
kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4U) ^
0xfffff80000000000UL;
PAGE_OFFSET;
#endif
kern_linear_pte_xor[0] |= (_PAGE_CP_4U | _PAGE_CV_4U |
_PAGE_P_4U | _PAGE_W_4U);
@ -2308,10 +2308,10 @@ static void __init sun4v_pgprot_init(void)
_PAGE_CACHE = _PAGE_CACHE_4V;
#ifdef CONFIG_DEBUG_PAGEALLOC
kern_linear_pte_xor[0] = _PAGE_VALID ^ 0xfffff80000000000UL;
kern_linear_pte_xor[0] = _PAGE_VALID ^ PAGE_OFFSET;
#else
kern_linear_pte_xor[0] = (_PAGE_VALID | _PAGE_SZ4MB_4V) ^
0xfffff80000000000UL;
PAGE_OFFSET;
#endif
kern_linear_pte_xor[0] |= (_PAGE_CP_4V | _PAGE_CV_4V |
_PAGE_P_4V | _PAGE_W_4V);