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author | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-16 17:17:24 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2016-05-16 17:17:24 -0700 |
commit | be092017b6ffbd013f481f915632db6aa9fc3ca3 (patch) | |
tree | 56f37b2b232ef41c0202c4f57d8e83e93d9168f4 /arch/arm64/kernel/setup.c | |
parent | fb6363e9f4eeb37323feb8253b93854195942b8b (diff) | |
parent | e6d9a52543338603e25e71e0e4942f05dae0dd8a (diff) | |
download | op-kernel-dev-be092017b6ffbd013f481f915632db6aa9fc3ca3.zip op-kernel-dev-be092017b6ffbd013f481f915632db6aa9fc3ca3.tar.gz |
Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
- virt_to_page/page_address optimisations
- support for NUMA systems described using device-tree
- support for hibernate/suspend-to-disk
- proper support for maxcpus= command line parameter
- detection and graceful handling of AArch64-only CPUs
- miscellaneous cleanups and non-critical fixes
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (92 commits)
arm64: do not enforce strict 16 byte alignment to stack pointer
arm64: kernel: Fix incorrect brk randomization
arm64: cpuinfo: Missing NULL terminator in compat_hwcap_str
arm64: secondary_start_kernel: Remove unnecessary barrier
arm64: Ensure pmd_present() returns false after pmd_mknotpresent()
arm64: Replace hard-coded values in the pmd/pud_bad() macros
arm64: Implement pmdp_set_access_flags() for hardware AF/DBM
arm64: Fix typo in the pmdp_huge_get_and_clear() definition
arm64: mm: remove unnecessary EXPORT_SYMBOL_GPL
arm64: always use STRICT_MM_TYPECHECKS
arm64: kvm: Fix kvm teardown for systems using the extended idmap
arm64: kaslr: increase randomization granularity
arm64: kconfig: drop CONFIG_RTC_LIB dependency
arm64: make ARCH_SUPPORTS_DEBUG_PAGEALLOC depend on !HIBERNATION
arm64: hibernate: Refuse to hibernate if the boot cpu is offline
arm64: kernel: Add support for hibernate/suspend-to-disk
PM / Hibernate: Call flush_icache_range() on pages restored in-place
arm64: Add new asm macro copy_page
arm64: Promote KERNEL_START/KERNEL_END definitions to a header file
arm64: kernel: Include _AC definition in page.h
...
Diffstat (limited to 'arch/arm64/kernel/setup.c')
-rw-r--r-- | arch/arm64/kernel/setup.c | 81 |
1 files changed, 12 insertions, 69 deletions
diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index 9dc6776..3279def 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -53,6 +53,7 @@ #include <asm/cpufeature.h> #include <asm/cpu_ops.h> #include <asm/kasan.h> +#include <asm/numa.h> #include <asm/sections.h> #include <asm/setup.h> #include <asm/smp_plat.h> @@ -175,7 +176,6 @@ static void __init smp_build_mpidr_hash(void) */ if (mpidr_hash_size() > 4 * num_possible_cpus()) pr_warn("Large number of MPIDR hash buckets detected\n"); - __flush_dcache_area(&mpidr_hash, sizeof(struct mpidr_hash)); } static void __init setup_machine_fdt(phys_addr_t dt_phys) @@ -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 +264,11 @@ void __init setup_arch(char **cmdline_p) acpi_boot_table_init(); paging_init(); - relocate_initrd(); + + if (acpi_disabled) + unflatten_device_tree(); + + bootmem_init(); kasan_init(); @@ -335,12 +276,11 @@ void __init setup_arch(char **cmdline_p) early_ioremap_reset(); - if (acpi_disabled) { - unflatten_device_tree(); + if (acpi_disabled) psci_dt_init(); - } else { + else psci_acpi_init(); - } + xen_early_init(); cpu_read_bootcpu_ops(); @@ -379,6 +319,9 @@ static int __init topology_init(void) { int i; + for_each_online_node(i) + register_one_node(i); + for_each_possible_cpu(i) { struct cpu *cpu = &per_cpu(cpu_data.cpu, i); cpu->hotpluggable = 1; |