[SPARC64]: Do not allocate prom translations using bootmem.
Use __initdata instead.
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/arch/sparc64/mm/init.c b/arch/sparc64/mm/init.c
index aaf9a3e..141d4cc5 100644
--- a/arch/sparc64/mm/init.c
+++ b/arch/sparc64/mm/init.c
@@ -310,6 +310,7 @@
unsigned long size;
unsigned long data;
};
+static struct linux_prom_translation prom_trans[512] __initdata;
extern unsigned long prom_boot_page;
extern void prom_remap(unsigned long physpage, unsigned long virtpage, int mmu_ihandle);
@@ -363,7 +364,6 @@
static void inherit_prom_mappings(void)
{
- struct linux_prom_translation *trans;
unsigned long phys_page, tte_vaddr, tte_data;
void (*remap_func)(unsigned long, unsigned long, int);
pmd_t *pmdp;
@@ -373,30 +373,27 @@
node = prom_finddevice("/virtual-memory");
n = prom_getproplen(node, "translations");
if (n == 0 || n == -1) {
- prom_printf("Couldn't get translation property\n");
+ prom_printf("prom_mappings: Couldn't get size.\n");
prom_halt();
}
- n += 5 * sizeof(struct linux_prom_translation);
- for (tsz = 1; tsz < n; tsz <<= 1)
- /* empty */;
- trans = __alloc_bootmem(tsz, SMP_CACHE_BYTES, bootmap_base);
- if (trans == NULL) {
- prom_printf("inherit_prom_mappings: Cannot alloc translations.\n");
+ n += 24 * sizeof(struct linux_prom_translation);
+ if (n > sizeof(prom_trans)) {
+ prom_printf("prom_mappings: prom_trans too small, "
+ "need %Zd bytes\n", n);
prom_halt();
}
- memset(trans, 0, tsz);
+ tsz = n;
+ if ((n = prom_getproperty(node, "translations",
+ (char *)&prom_trans[0], tsz)) == -1) {
+ prom_printf("prom_mappings: Couldn't get property.\n");
+ prom_halt();
+ }
+ n = n / sizeof(struct linux_prom_translation);
- if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) {
- prom_printf("Couldn't get translation property\n");
- prom_halt();
- }
- n = n / sizeof(*trans);
-
- /*
- * The obp translations are saved based on 8k pagesize, since obp can
- * use a mixture of pagesizes. Misses to the 0xf0000000 - 0x100000000,
- * ie obp range, are handled in entry.S and do not use the vpte scheme
- * (see rant in inherit_locked_prom_mappings()).
+ /* The obp translations are saved based on 8k pagesize, since obp
+ * can use a mixture of pagesizes. Misses to the 0xf0000000 ->
+ * 0x100000000, ie obp range, are handled in entry.S and do not
+ * use the vpte scheme (see rant: inherit_locked_prom_mappings).
*/
#define OBP_PMD_SIZE 2048
prompmd = __alloc_bootmem(OBP_PMD_SIZE, OBP_PMD_SIZE, bootmap_base);
@@ -406,9 +403,9 @@
for (i = 0; i < n; i++) {
unsigned long vaddr;
- if (trans[i].virt >= LOW_OBP_ADDRESS && trans[i].virt < HI_OBP_ADDRESS) {
- for (vaddr = trans[i].virt;
- ((vaddr < trans[i].virt + trans[i].size) &&
+ if (prom_trans[i].virt >= LOW_OBP_ADDRESS && prom_trans[i].virt < HI_OBP_ADDRESS) {
+ for (vaddr = prom_trans[i].virt;
+ ((vaddr < prom_trans[i].virt + prom_trans[i].size) &&
(vaddr < HI_OBP_ADDRESS));
vaddr += BASE_PAGE_SIZE) {
unsigned long val;
@@ -426,7 +423,7 @@
ptep = (pte_t *)__pmd_page(*pmdp) +
((vaddr >> 13) & 0x3ff);
- val = trans[i].data;
+ val = prom_trans[i].data;
/* Clear diag TTE bits. */
if (tlb_type == spitfire)
@@ -434,7 +431,7 @@
set_pte_at(&init_mm, vaddr,
ptep, __pte(val | _PAGE_MODIFIED));
- trans[i].data += BASE_PAGE_SIZE;
+ prom_trans[i].data += BASE_PAGE_SIZE;
}
}
}
@@ -571,15 +568,16 @@
}
/* Re-read translations property. */
- if ((n = prom_getproperty(node, "translations", (char *)trans, tsz)) == -1) {
- prom_printf("Couldn't get translation property\n");
+ if ((n = prom_getproperty(node, "translations",
+ (char *)&prom_trans[0], tsz)) == -1) {
+ prom_printf("prom_mappings: Can't reread prom_trans.\n");
prom_halt();
}
- n = n / sizeof(*trans);
+ n = n / sizeof(struct linux_prom_translation);
for (i = 0; i < n; i++) {
- unsigned long vaddr = trans[i].virt;
- unsigned long size = trans[i].size;
+ unsigned long vaddr = prom_trans[i].virt;
+ unsigned long size = prom_trans[i].size;
if (vaddr < 0xf0000000UL) {
unsigned long avoid_start = (unsigned long) KERNBASE;