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| author |   Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-22 21:47:25 +0100 |
|---|---|---|
| committer | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2005-06-22 21:47:25 +0100 |
| commit | 92a8cbed29eb9bf6e8eec16ca29d54015bc0e8a2 (patch) | |
| tree | 142314e2863863a1cbe1ea950ac688fc1aaeef6c | |
| parent | [PATCH] ARM: Ensure memory information is page aligned (diff) | |
| download | linux-dev-92a8cbed29eb9bf6e8eec16ca29d54015bc0e8a2.tar.xz linux-dev-92a8cbed29eb9bf6e8eec16ca29d54015bc0e8a2.zip | |
[PATCH] ARM: Remove explicit page-alignments in memory init
Since meminfo.bank[] array contains page-aligned start/size, we
no longer need to explicitly round up/down the addresses when
converting to PFNs.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/mm/init.c | 19 |
1 files changed, 6 insertions, 13 deletions
diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 72a2b8cee319..c08710b1ff02 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -93,14 +93,7 @@ struct node_info { }; #define O_PFN_DOWN(x) ((x) >> PAGE_SHIFT) -#define V_PFN_DOWN(x) O_PFN_DOWN(__pa(x)) - #define O_PFN_UP(x) (PAGE_ALIGN(x) >> PAGE_SHIFT) -#define V_PFN_UP(x) O_PFN_UP(__pa(x)) - -#define PFN_SIZE(x) ((x) >> PAGE_SHIFT) -#define PFN_RANGE(s,e) PFN_SIZE(PAGE_ALIGN((unsigned long)(e)) - \ - (((unsigned long)(s)) & PAGE_MASK)) /* * FIXME: We really want to avoid allocating the bootmap bitmap @@ -113,7 +106,7 @@ find_bootmap_pfn(int node, struct meminfo *mi, unsigned int bootmap_pages) { unsigned int start_pfn, bank, bootmap_pfn; - start_pfn = V_PFN_UP(&_end); + start_pfn = O_PFN_UP(__pa(&_end)); bootmap_pfn = 0; for (bank = 0; bank < mi->nr_banks; bank ++) { @@ -122,9 +115,9 @@ find_bootmap_pfn(int node, struct meminfo *mi, unsigned int bootmap_pages) if (mi->bank[bank].node != node) continue; - start = O_PFN_UP(mi->bank[bank].start); - end = O_PFN_DOWN(mi->bank[bank].size + - mi->bank[bank].start); + start = mi->bank[bank].start >> PAGE_SHIFT; + end = (mi->bank[bank].size + + mi->bank[bank].start) >> PAGE_SHIFT; if (end < start_pfn) continue; @@ -191,8 +184,8 @@ find_memend_and_nodes(struct meminfo *mi, struct node_info *np) /* * Get the start and end pfns for this bank */ - start = O_PFN_UP(mi->bank[i].start); - end = O_PFN_DOWN(mi->bank[i].start + mi->bank[i].size); + start = mi->bank[i].start >> PAGE_SHIFT; + end = (mi->bank[i].start + mi->bank[i].size) >> PAGE_SHIFT; if (np[node].start > start) np[node].start = start; |