From 9e427365af736be864b1cef737b26c516b832144 Mon Sep 17 00:00:00 2001 From: Heiko Carstens Date: Tue, 18 Oct 2016 13:35:32 +0200 Subject: [PATCH] s390: convert remaining bootmem allocations to memblock Get rid of all remaining alloc_bootmem calls and use memblock_alloc instead everywhere. This way we get rid of the inconsistent mixture of alloc_bootmem and memblock_alloc usages. Two of the alloc_bootmem_low calls within arch/s390/kernel/setup.c are replaced with memblock_alloc calls that don't enforce that the allocated memory is below 2GB. This restriction was never necessary. Signed-off-by: Heiko Carstens Signed-off-by: Martin Schwidefsky --- arch/s390/kernel/setup.c | 16 ++++++++-------- arch/s390/mm/vmem.c | 9 ++++----- 2 files changed, 12 insertions(+), 13 deletions(-) diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index 17160fb43777..304787512c7a 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -304,7 +304,9 @@ static void __init setup_lowcore(void) * Setup lowcore for boot cpu */ BUILD_BUG_ON(sizeof(struct lowcore) != LC_PAGES * 4096); - lc = __alloc_bootmem_low(LC_PAGES * PAGE_SIZE, LC_PAGES * PAGE_SIZE, 0); + lc = (struct lowcore *) memblock_alloc_base(sizeof(struct lowcore), + sizeof(struct lowcore), + MAX_DMA_ADDRESS); lc->restart_psw.mask = PSW_KERNEL_BITS; lc->restart_psw.addr = (unsigned long) restart_int_handler; lc->external_new_psw.mask = PSW_KERNEL_BITS | @@ -324,11 +326,9 @@ static void __init setup_lowcore(void) lc->clock_comparator = -1ULL; lc->kernel_stack = ((unsigned long) &init_thread_union) + THREAD_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); - lc->async_stack = (unsigned long) - __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0) + lc->async_stack = memblock_alloc(ASYNC_SIZE, ASYNC_SIZE) + ASYNC_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); - lc->panic_stack = (unsigned long) - __alloc_bootmem(PAGE_SIZE, PAGE_SIZE, 0) + lc->panic_stack = memblock_alloc(PAGE_SIZE, PAGE_SIZE) + PAGE_SIZE - STACK_FRAME_OVERHEAD - sizeof(struct pt_regs); lc->current_task = (unsigned long)&init_task; lc->lpp = LPP_MAGIC; @@ -350,7 +350,7 @@ static void __init setup_lowcore(void) lc->last_update_timer = S390_lowcore.last_update_timer; lc->last_update_clock = S390_lowcore.last_update_clock; - restart_stack = __alloc_bootmem(ASYNC_SIZE, ASYNC_SIZE, 0); + restart_stack = (void *) memblock_alloc(ASYNC_SIZE, ASYNC_SIZE); restart_stack += ASYNC_SIZE; /* @@ -413,7 +413,7 @@ static void __init setup_resources(void) bss_resource.end = (unsigned long) &__bss_stop - 1; for_each_memblock(memory, reg) { - res = alloc_bootmem_low(sizeof(*res)); + res = (void *) memblock_alloc(sizeof(*res), 8); res->flags = IORESOURCE_BUSY | IORESOURCE_SYSTEM_RAM; res->name = "System RAM"; @@ -427,7 +427,7 @@ static void __init setup_resources(void) std_res->start > res->end) continue; if (std_res->end > res->end) { - sub_res = alloc_bootmem_low(sizeof(*sub_res)); + sub_res = (void *) memblock_alloc(sizeof(*sub_res), 8); *sub_res = *std_res; sub_res->end = res->end; std_res->start = res->end + 1; diff --git a/arch/s390/mm/vmem.c b/arch/s390/mm/vmem.c index 1848292766ef..45becc8a44ec 100644 --- a/arch/s390/mm/vmem.c +++ b/arch/s390/mm/vmem.c @@ -34,7 +34,7 @@ static void __ref *vmem_alloc_pages(unsigned int order) if (slab_is_available()) return (void *)__get_free_pages(GFP_KERNEL, order); - return alloc_bootmem_align(size, size); + return (void *) memblock_alloc(size, size); } static inline pud_t *vmem_pud_alloc(void) @@ -61,17 +61,16 @@ pmd_t *vmem_pmd_alloc(void) pte_t __ref *vmem_pte_alloc(void) { + unsigned long size = PTRS_PER_PTE * sizeof(pte_t); pte_t *pte; if (slab_is_available()) pte = (pte_t *) page_table_alloc(&init_mm); else - pte = alloc_bootmem_align(PTRS_PER_PTE * sizeof(pte_t), - PTRS_PER_PTE * sizeof(pte_t)); + pte = (pte_t *) memblock_alloc(size, size); if (!pte) return NULL; - clear_table((unsigned long *) pte, _PAGE_INVALID, - PTRS_PER_PTE * sizeof(pte_t)); + clear_table((unsigned long *) pte, _PAGE_INVALID, size); return pte; } -- 2.20.1