diff options
Diffstat (limited to 'arch/ia64/include/asm/sparsemem.h')
| -rw-r--r-- | arch/ia64/include/asm/sparsemem.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/ia64/include/asm/sparsemem.h b/arch/ia64/include/asm/sparsemem.h new file mode 100644 index 0000000000..a58f8b466d --- /dev/null +++ b/arch/ia64/include/asm/sparsemem.h @@ -0,0 +1,28 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_IA64_SPARSEMEM_H +#define _ASM_IA64_SPARSEMEM_H + +#ifdef CONFIG_SPARSEMEM +#include <asm/page.h> +/* + * SECTION_SIZE_BITS 2^N: how big each section will be + * MAX_PHYSMEM_BITS 2^N: how much memory we can have in that space + */ + +#define SECTION_SIZE_BITS (30) +#define MAX_PHYSMEM_BITS (50) +#ifdef CONFIG_ARCH_FORCE_MAX_ORDER +#if (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT > SECTION_SIZE_BITS) +#undef SECTION_SIZE_BITS +#define SECTION_SIZE_BITS (CONFIG_ARCH_FORCE_MAX_ORDER + PAGE_SHIFT) +#endif +#endif + +#endif /* CONFIG_SPARSEMEM */ + +#ifdef CONFIG_MEMORY_HOTPLUG +int memory_add_physaddr_to_nid(u64 addr); +#define memory_add_physaddr_to_nid memory_add_physaddr_to_nid +#endif + +#endif /* _ASM_IA64_SPARSEMEM_H */ |