| Message ID | 20190902141043.27210-2-nsaenzjulienne@suse.de (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Raspberry Pi 4 DMA addressing support | expand |
On Mon, Sep 02, 2019 at 04:10:39PM +0200, Nicolas Saenz Julienne wrote: > By the time we call zones_sizes_init() arm64_dma_phys_limit already > contains the result of max_zone_dma_phys(). We use the variable instead > of calling the function directly to save some precious cpu time. > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index f3c795278def..6112d6c90fa8 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -181,7 +181,7 @@ static void __init zone_sizes_init(unsigned long min, unsigned long max) unsigned long max_zone_pfns[MAX_NR_ZONES] = {0}; #ifdef CONFIG_ZONE_DMA32 - max_zone_pfns[ZONE_DMA32] = PFN_DOWN(max_zone_dma_phys()); + max_zone_pfns[ZONE_DMA32] = PFN_DOWN(arm64_dma_phys_limit); #endif max_zone_pfns[ZONE_NORMAL] = max;
By the time we call zones_sizes_init() arm64_dma_phys_limit already contains the result of max_zone_dma_phys(). We use the variable instead of calling the function directly to save some precious cpu time. Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> --- Changes in v3: None Changes in v2: None arch/arm64/mm/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)