diff options
Diffstat (limited to 'arch/riscv')
| -rw-r--r-- | arch/riscv/Kconfig | 1 | ||||
| -rw-r--r-- | arch/riscv/configs/defconfig | 1 | ||||
| -rw-r--r-- | arch/riscv/configs/rv32_defconfig | 1 | ||||
| -rw-r--r-- | arch/riscv/mm/init.c | 21 |
4 files changed, 5 insertions, 19 deletions
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index a998babc1237..85d626b8ce5e 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -314,6 +314,7 @@ endchoice # Common NUMA Features config NUMA bool "NUMA Memory Allocation and Scheduler Support" + depends on SMP select GENERIC_ARCH_NUMA select OF_NUMA select ARCH_SUPPORTS_NUMA_BALANCING diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index 8c3d1e451703..6c0625aa96c7 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -17,6 +17,7 @@ CONFIG_BPF_SYSCALL=y CONFIG_SOC_SIFIVE=y CONFIG_SOC_VIRT=y CONFIG_SMP=y +CONFIG_HOTPLUG_CPU=y CONFIG_JUMP_LABEL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig index 2c2cda6cc1c5..8dd02b842fef 100644 --- a/arch/riscv/configs/rv32_defconfig +++ b/arch/riscv/configs/rv32_defconfig @@ -18,6 +18,7 @@ CONFIG_SOC_SIFIVE=y CONFIG_SOC_VIRT=y CONFIG_ARCH_RV32I=y CONFIG_SMP=y +CONFIG_HOTPLUG_CPU=y CONFIG_JUMP_LABEL=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 9dfb8b2dffd6..067583ab1bd7 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -108,34 +108,17 @@ void __init mem_init(void) void __init setup_bootmem(void) { - phys_addr_t mem_start = 0; - phys_addr_t start, dram_end, end = 0; phys_addr_t vmlinux_end = __pa_symbol(&_end); phys_addr_t vmlinux_start = __pa_symbol(&_start); + phys_addr_t dram_end = memblock_end_of_DRAM(); phys_addr_t max_mapped_addr = __pa(~(ulong)0); - u64 i; - - /* Find the memory region containing the kernel */ - for_each_mem_range(i, &start, &end) { - phys_addr_t size = end - start; - if (!mem_start) - mem_start = start; - if (start <= vmlinux_start && vmlinux_end <= end) - BUG_ON(size == 0); - } - /* - * The maximal physical memory size is -PAGE_OFFSET. - * Make sure that any memory beyond mem_start + (-PAGE_OFFSET) is removed - * as it is unusable by kernel. - */ + /* The maximal physical memory size is -PAGE_OFFSET. */ memblock_enforce_memory_limit(-PAGE_OFFSET); /* Reserve from the start of the kernel to the end of the kernel */ memblock_reserve(vmlinux_start, vmlinux_end - vmlinux_start); - dram_end = memblock_end_of_DRAM(); - /* * memblock allocator is not aware of the fact that last 4K bytes of * the addressable memory can not be mapped because of IS_ERR_VALUE |