From 8923a16686569375bfa25b877769f9a3093e9f22 Mon Sep 17 00:00:00 2001 From: Ard Biesheuvel Date: Wed, 30 Mar 2016 15:18:43 +0200 Subject: arm64: remove the now unneeded relocate_initrd() This removes the relocate_initrd() implementation and invocation, which are no longer needed now that the placement of the initrd is guaranteed to be covered by the linear mapping. Signed-off-by: Ard Biesheuvel Signed-off-by: Will Deacon --- arch/arm64/kernel/setup.c | 64 ----------------------------------------------- 1 file changed, 64 deletions(-) diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 9dc67769b6a4..7b85b1d6a6fb 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -224,69 +224,6 @@ static void __init request_standard_resources(void) } } -#ifdef CONFIG_BLK_DEV_INITRD -/* - * Relocate initrd if it is not completely within the linear mapping. - * This would be the case if mem= cuts out all or part of it. - */ -static void __init relocate_initrd(void) -{ - phys_addr_t orig_start = __virt_to_phys(initrd_start); - phys_addr_t orig_end = __virt_to_phys(initrd_end); - phys_addr_t ram_end = memblock_end_of_DRAM(); - phys_addr_t new_start; - unsigned long size, to_free = 0; - void *dest; - - if (orig_end <= ram_end) - return; - - /* - * Any of the original initrd which overlaps the linear map should - * be freed after relocating. - */ - if (orig_start < ram_end) - to_free = ram_end - orig_start; - - size = orig_end - orig_start; - if (!size) - return; - - /* initrd needs to be relocated completely inside linear mapping */ - new_start = memblock_find_in_range(0, PFN_PHYS(max_pfn), - size, PAGE_SIZE); - if (!new_start) - panic("Cannot relocate initrd of size %ld\n", size); - memblock_reserve(new_start, size); - - initrd_start = __phys_to_virt(new_start); - initrd_end = initrd_start + size; - - pr_info("Moving initrd from [%llx-%llx] to [%llx-%llx]\n", - orig_start, orig_start + size - 1, - new_start, new_start + size - 1); - - dest = (void *)initrd_start; - - if (to_free) { - memcpy(dest, (void *)__phys_to_virt(orig_start), to_free); - dest += to_free; - } - - copy_from_early_mem(dest, orig_start + to_free, size - to_free); - - if (to_free) { - pr_info("Freeing original RAMDISK from [%llx-%llx]\n", - orig_start, orig_start + to_free - 1); - memblock_free(orig_start, to_free); - } -} -#else -static inline void __init relocate_initrd(void) -{ -} -#endif - u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID }; void __init setup_arch(char **cmdline_p) @@ -327,7 +264,6 @@ void __init setup_arch(char **cmdline_p) acpi_boot_table_init(); paging_init(); - relocate_initrd(); kasan_init(); -- cgit v1.2.3