x86: clean up reserve_bootmem_generic() and port it to 32-bit
1. add reserve_bootmem_generic for 32bit
2. change len to unsigned long
3. make early_res_to_bootmem to use it
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 4f2cd5d..774063f 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -635,7 +635,7 @@
continue;
printk(KERN_INFO " early res: %d [%llx-%llx] %s\n", i,
final_start, final_end - 1, r->name);
- reserve_bootmem(final_start, final_end - final_start,
+ reserve_bootmem_generic(final_start, final_end - final_start,
BOOTMEM_DEFAULT);
}
}
diff --git a/arch/x86/kernel/mpparse.c b/arch/x86/kernel/mpparse.c
index 7ac1b68..b62ac6b 100644
--- a/arch/x86/kernel/mpparse.c
+++ b/arch/x86/kernel/mpparse.c
@@ -859,10 +859,11 @@
if (!reserve)
return 1;
-#ifdef CONFIG_X86_32
- reserve_bootmem(virt_to_phys(mpf), PAGE_SIZE,
+ reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE,
BOOTMEM_DEFAULT);
if (mpf->mpf_physptr) {
+ unsigned long size = PAGE_SIZE;
+#ifdef CONFIG_X86_32
/*
* We cannot access to MPC table to compute
* table size yet, as only few megabytes from
@@ -872,22 +873,15 @@
* PAGE_SIZE from mpg->mpf_physptr yields BUG()
* in reserve_bootmem.
*/
- unsigned long size = PAGE_SIZE;
unsigned long end = max_low_pfn * PAGE_SIZE;
if (mpf->mpf_physptr + size > end)
size = end - mpf->mpf_physptr;
- reserve_bootmem(mpf->mpf_physptr, size,
+#endif
+ reserve_bootmem_generic(mpf->mpf_physptr, size,
BOOTMEM_DEFAULT);
}
-#else
- reserve_bootmem_generic(virt_to_phys(mpf), PAGE_SIZE,
- BOOTMEM_DEFAULT);
- if (mpf->mpf_physptr)
- reserve_bootmem_generic(mpf->mpf_physptr,
- PAGE_SIZE, BOOTMEM_DEFAULT);
-#endif
- return 1;
+ return 1;
}
bp += 4;
length -= 16;
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 0e7bb5e..abadb1d 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -785,3 +785,9 @@
free_init_pages("initrd memory", start, end);
}
#endif
+
+int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
+ int flags)
+{
+ return reserve_bootmem(phys, len, flags);
+}
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index bf7bf1d..b8c2c1e 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -799,7 +799,8 @@
}
#endif
-int __init reserve_bootmem_generic(unsigned long phys, unsigned len, int flags)
+int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
+ int flags)
{
#ifdef CONFIG_NUMA
int nid, next_nid;
diff --git a/include/asm-x86/proto.h b/include/asm-x86/proto.h
index a9f5147..3dd458c 100644
--- a/include/asm-x86/proto.h
+++ b/include/asm-x86/proto.h
@@ -14,8 +14,6 @@
extern void ia32_cstar_target(void);
extern void ia32_sysenter_target(void);
-extern int reserve_bootmem_generic(unsigned long phys, unsigned len, int flags);
-
extern void syscall32_cpu_init(void);
extern void check_efer(void);
diff --git a/include/linux/bootmem.h b/include/linux/bootmem.h
index 686895b..a1d9b79 100644
--- a/include/linux/bootmem.h
+++ b/include/linux/bootmem.h
@@ -84,6 +84,8 @@
__alloc_bootmem_low(x, PAGE_SIZE, 0)
#endif /* !CONFIG_HAVE_ARCH_BOOTMEM_NODE */
+extern int reserve_bootmem_generic(unsigned long addr, unsigned long size,
+ int flags);
extern unsigned long free_all_bootmem(void);
extern unsigned long free_all_bootmem_node(pg_data_t *pgdat);
extern void *__alloc_bootmem_node(pg_data_t *pgdat,