diff options
Diffstat (limited to 'arch/riscv/mm/init.c')
| -rw-r--r-- | arch/riscv/mm/init.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index ee224fe18d..0c00efc756 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -232,7 +232,7 @@ static void __init setup_bootmem(void) * In 64-bit, any use of __va/__pa before this point is wrong as we * did not know the start of DRAM before. */ - if (IS_ENABLED(CONFIG_64BIT)) + if (IS_ENABLED(CONFIG_64BIT) && IS_ENABLED(CONFIG_MMU)) kernel_map.va_pa_offset = PAGE_OFFSET - phys_ram_base; /* @@ -1395,10 +1395,29 @@ void __init misc_mem_init(void) } #ifdef CONFIG_SPARSEMEM_VMEMMAP +void __meminit vmemmap_set_pmd(pmd_t *pmd, void *p, int node, + unsigned long addr, unsigned long next) +{ + pmd_set_huge(pmd, virt_to_phys(p), PAGE_KERNEL); +} + +int __meminit vmemmap_check_pmd(pmd_t *pmdp, int node, + unsigned long addr, unsigned long next) +{ + vmemmap_verify((pte_t *)pmdp, node, addr, next); + return 1; +} + int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, struct vmem_altmap *altmap) { - return vmemmap_populate_basepages(start, end, node, NULL); + /* + * Note that SPARSEMEM_VMEMMAP is only selected for rv64 and that we + * can't use hugepage mappings for 2-level page table because in case of + * memory hotplug, we are not able to update all the page tables with + * the new PMDs. + */ + return vmemmap_populate_hugepages(start, end, node, NULL); } #endif |