diff options
| author | Alexandre Ghiti <alex@ghiti.fr> | 2019-05-26 15:50:38 +0300 |
|---|---|---|
| committer | Paul Walmsley <paul.walmsley@sifive.com> | 2019-07-04 01:23:38 +0300 |
| commit | 9e953cda5cdf1c230a3c9b7fc4d5e94f15885a9b (patch) | |
| tree | b3f437ffbfa33f52497f1bd80a62c31d9799284e /arch/riscv/include/asm/page.h | |
| parent | 3876d4a38ae22bb56311abf5ea418eac46090c00 (diff) | |
| download | linux-9e953cda5cdf1c230a3c9b7fc4d5e94f15885a9b.tar.xz | |
riscv: Introduce huge page support for 32/64bit kernel
This patch implements both 4MB huge page support for 32bit kernel
and 2MB/1GB huge pages support for 64bit kernel.
Signed-off-by: Alexandre Ghiti <alex@ghiti.fr>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Paul Walmsley <paul.walmsley@sifive.com>
Diffstat (limited to 'arch/riscv/include/asm/page.h')
| -rw-r--r-- | arch/riscv/include/asm/page.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h index d3e5f6c0c21a..707e00a8430b 100644 --- a/arch/riscv/include/asm/page.h +++ b/arch/riscv/include/asm/page.h @@ -16,6 +16,16 @@ #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) #define PAGE_MASK (~(PAGE_SIZE - 1)) +#ifdef CONFIG_64BIT +#define HUGE_MAX_HSTATE 2 +#else +#define HUGE_MAX_HSTATE 1 +#endif +#define HPAGE_SHIFT PMD_SHIFT +#define HPAGE_SIZE (_AC(1, UL) << HPAGE_SHIFT) +#define HPAGE_MASK (~(HPAGE_SIZE - 1)) +#define HUGETLB_PAGE_ORDER (HPAGE_SHIFT - PAGE_SHIFT) + /* * PAGE_OFFSET -- the first address of the first page of memory. * When not using MMU this corresponds to the first free page in |