From b97094560b991af5c62391014e72bfa4c3a3701f Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Wed, 13 Feb 2008 19:20:45 -0800 Subject: [PATCH] [SPARC64]: Call real_setup_per_cpu_areas() earlier and use lmb_alloc(). We have to do it like this before we can move the PROM and MDESC device tree code over to using lmb_alloc(). Signed-off-by: David S. Miller --- arch/sparc64/kernel/smp.c | 11 ++++++++--- arch/sparc64/mm/init.c | 8 ++++++-- 2 files changed, 14 insertions(+), 5 deletions(-) diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c index 59f020d69d4..524b8892094 100644 --- a/arch/sparc64/kernel/smp.c +++ b/arch/sparc64/kernel/smp.c @@ -20,7 +20,7 @@ #include #include #include -#include +#include #include #include @@ -1431,7 +1431,7 @@ EXPORT_SYMBOL(__per_cpu_shift); void __init real_setup_per_cpu_areas(void) { - unsigned long goal, size, i; + unsigned long paddr, goal, size, i; char *ptr; /* Copy section for each CPU (we discard the original) */ @@ -1441,8 +1441,13 @@ void __init real_setup_per_cpu_areas(void) for (size = PAGE_SIZE; size < goal; size <<= 1UL) __per_cpu_shift++; - ptr = alloc_bootmem_pages(size * NR_CPUS); + paddr = lmb_alloc(size * NR_CPUS, PAGE_SIZE); + if (!paddr) { + prom_printf("Cannot allocate per-cpu memory.\n"); + prom_halt(); + } + ptr = __va(paddr); __per_cpu_base = ptr - __per_cpu_start; for (i = 0; i < NR_CPUS; i++, ptr += size) diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c index 90e644a0e93..658ec462ed4 100644 --- a/arch/sparc64/mm/init.c +++ b/arch/sparc64/mm/init.c @@ -1208,6 +1208,12 @@ void __init paging_init(void) if (tlb_type == hypervisor) sun4v_ktsb_register(); + /* We must setup the per-cpu areas before we pull in the + * PROM and the MDESC. The code there fills in cpu and + * other information into per-cpu data structures. + */ + real_setup_per_cpu_areas(); + /* Setup bootmem... */ pages_avail = 0; last_valid_pfn = end_pfn = bootmem_init(&pages_avail, phys_base); @@ -1216,8 +1222,6 @@ void __init paging_init(void) kernel_physical_mapping_init(); - real_setup_per_cpu_areas(); - prom_build_devicetree(); if (tlb_type == hypervisor) -- 2.41.1