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| author |   Zong Li <zong@andestech.com> | 2018-06-25 16:49:37 +0800 |
|---|---|---|
| committer |   Palmer Dabbelt <palmer@sifive.com> | 2018-07-04 13:53:21 -0700 |
| commit | d5fad48cfb4b183d87960904c177eeeb9412b929 (patch) | |
| tree | 350d18542b7b7e13f6e301ccd60c6543bf47d2ef /arch | |
| parent | Linux 4.18-rc3 (diff) | |
| download | linux-dev-d5fad48cfb4b183d87960904c177eeeb9412b929.tar.xz linux-dev-d5fad48cfb4b183d87960904c177eeeb9412b929.zip | |
RISC-V: Add conditional macro for zone of DMA32
The DMA32 is for 64-bit usage.
Signed-off-by: Zong Li <zong@andestech.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/riscv/mm/init.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index c77df8142be2..58a522f9bcc3 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -28,7 +28,9 @@ static void __init zone_sizes_init(void) { unsigned long max_zone_pfns[MAX_NR_ZONES] = { 0, }; +#ifdef CONFIG_ZONE_DMA32 max_zone_pfns[ZONE_DMA32] = PFN_DOWN(min(4UL * SZ_1G, max_low_pfn)); +#endif max_zone_pfns[ZONE_NORMAL] = max_low_pfn; free_area_init_nodes(max_zone_pfns); |