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[SPARC64]: Call real_setup_per_cpu_areas() earlier and use lmb_alloc().

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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>
This commit is contained in:
David S. Miller 2008-02-13 19:20:45 -08:00
parent 9422273ba7
commit b97094560b
2 changed files with 14 additions and 5 deletions
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11
arch/sparc64/kernel/smp.c
View File

@ -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)

8
arch/sparc64/mm/init.c
View File

@ -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)