diff options
Diffstat (limited to 'arch/riscv/mm/init.c')
| -rw-r--r-- | arch/riscv/mm/init.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 79e9d55bdf1a..50bcd9f594d7 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -541,6 +541,32 @@ void mark_rodata_ro(void) } #endif +static void __init resource_init(void) +{ + struct memblock_region *region; + + for_each_memblock(memory, region) { + struct resource *res; + + res = memblock_alloc(sizeof(struct resource), SMP_CACHE_BYTES); + if (!res) + panic("%s: Failed to allocate %zu bytes\n", __func__, + sizeof(struct resource)); + + if (memblock_is_nomap(region)) { + res->name = "reserved"; + res->flags = IORESOURCE_MEM; + } else { + res->name = "System RAM"; + res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY; + } + res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region)); + res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1; + + request_resource(&iomem_resource, res); + } +} + void __init paging_init(void) { setup_vm_final(); @@ -548,6 +574,7 @@ void __init paging_init(void) sparse_init(); setup_zero_page(); zone_sizes_init(); + resource_init(); } #ifdef CONFIG_SPARSEMEM_VMEMMAP |