diff options
| -rw-r--r-- | arch/powerpc/mm/40x_mmu.c | 17 | ||||
| -rw-r--r-- | arch/ppc/mm/4xx_mmu.c | 17 |
2 files changed, 16 insertions, 18 deletions
diff --git a/arch/powerpc/mm/40x_mmu.c b/arch/powerpc/mm/40x_mmu.c index e067df836be..3899ea97fbd 100644 --- a/arch/powerpc/mm/40x_mmu.c +++ b/arch/powerpc/mm/40x_mmu.c @@ -98,13 +98,12 @@ unsigned long __init mmu_mapin_ram(void) v = KERNELBASE; p = PPC_MEMSTART; - s = 0; + s = total_lowmem; - if (__map_without_ltlbs) { - return s; - } + if (__map_without_ltlbs) + return 0; - while (s <= (total_lowmem - LARGE_PAGE_SIZE_16M)) { + while (s >= LARGE_PAGE_SIZE_16M) { pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_16M | _PAGE_HWEXEC | _PAGE_HWWRITE; @@ -116,10 +115,10 @@ unsigned long __init mmu_mapin_ram(void) v += LARGE_PAGE_SIZE_16M; p += LARGE_PAGE_SIZE_16M; - s += LARGE_PAGE_SIZE_16M; + s -= LARGE_PAGE_SIZE_16M; } - while (s <= (total_lowmem - LARGE_PAGE_SIZE_4M)) { + while (s >= LARGE_PAGE_SIZE_4M) { pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_4M | _PAGE_HWEXEC | _PAGE_HWWRITE; @@ -128,8 +127,8 @@ unsigned long __init mmu_mapin_ram(void) v += LARGE_PAGE_SIZE_4M; p += LARGE_PAGE_SIZE_4M; - s += LARGE_PAGE_SIZE_4M; + s -= LARGE_PAGE_SIZE_4M; } - return s; + return total_lowmem - s; } diff --git a/arch/ppc/mm/4xx_mmu.c b/arch/ppc/mm/4xx_mmu.c index 838e09db71d..ea785dbaac7 100644 --- a/arch/ppc/mm/4xx_mmu.c +++ b/arch/ppc/mm/4xx_mmu.c @@ -99,13 +99,12 @@ unsigned long __init mmu_mapin_ram(void) v = KERNELBASE; p = PPC_MEMSTART; - s = 0; + s = total_lowmem; - if (__map_without_ltlbs) { - return s; - } + if (__map_without_ltlbs) + return 0; - while (s <= (total_lowmem - LARGE_PAGE_SIZE_16M)) { + while (s >= LARGE_PAGE_SIZE_16M) { pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_16M | _PAGE_HWEXEC | _PAGE_HWWRITE; @@ -117,10 +116,10 @@ unsigned long __init mmu_mapin_ram(void) v += LARGE_PAGE_SIZE_16M; p += LARGE_PAGE_SIZE_16M; - s += LARGE_PAGE_SIZE_16M; + s -= LARGE_PAGE_SIZE_16M; } - while (s <= (total_lowmem - LARGE_PAGE_SIZE_4M)) { + while (s >= LARGE_PAGE_SIZE_4M) { pmd_t *pmdp; unsigned long val = p | _PMD_SIZE_4M | _PAGE_HWEXEC | _PAGE_HWWRITE; @@ -129,8 +128,8 @@ unsigned long __init mmu_mapin_ram(void) v += LARGE_PAGE_SIZE_4M; p += LARGE_PAGE_SIZE_4M; - s += LARGE_PAGE_SIZE_4M; + s -= LARGE_PAGE_SIZE_4M; } - return s; + return total_lowmem - s; } |