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authorDavid S. Miller <davem@davemloft.net>2008-02-13 19:20:45 -0800
committerDavid S. Miller <davem@davemloft.net>2008-04-23 23:32:11 -0700
commitb97094560b991af5c62391014e72bfa4c3a3701f (patch)
treefbdc76cea526c0170982419717b6a3fe6a64c0f3 /arch/sparc64
parent9422273ba7d139537720c8c47514925d9a621e0d (diff)
downloadop-kernel-dev-b97094560b991af5c62391014e72bfa4c3a3701f.zip
op-kernel-dev-b97094560b991af5c62391014e72bfa4c3a3701f.tar.gz
[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 <davem@davemloft.net>
Diffstat (limited to 'arch/sparc64')
-rw-r--r--arch/sparc64/kernel/smp.c11
-rw-r--r--arch/sparc64/mm/init.c8
2 files changed, 14 insertions, 5 deletions
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 59f020d..524b889 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -20,7 +20,7 @@
#include <linux/cache.h>
#include <linux/jiffies.h>
#include <linux/profile.h>
-#include <linux/bootmem.h>
+#include <linux/lmb.h>
#include <asm/head.h>
#include <asm/ptrace.h>
@@ -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 90e644a..658ec46 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)
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