diff options
Diffstat (limited to 'arch/alpha/include/asm/sparsemem.h')
| -rw-r--r-- | arch/alpha/include/asm/sparsemem.h | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/alpha/include/asm/sparsemem.h b/arch/alpha/include/asm/sparsemem.h new file mode 100644 index 0000000000..a0820fd2d4 --- /dev/null +++ b/arch/alpha/include/asm/sparsemem.h @@ -0,0 +1,18 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_ALPHA_SPARSEMEM_H +#define _ASM_ALPHA_SPARSEMEM_H + +#ifdef CONFIG_SPARSEMEM + +#define SECTION_SIZE_BITS 27 + +/* + * According to "Alpha Architecture Reference Manual" physical + * addresses are at most 48 bits. + * https://download.majix.org/dec/alpha_arch_ref.pdf + */ +#define MAX_PHYSMEM_BITS 48 + +#endif /* CONFIG_SPARSEMEM */ + +#endif /* _ASM_ALPHA_SPARSEMEM_H */ |