return 0;
}
-static __ref void *early_alloc_pgtable(unsigned long size)
+static __ref void *early_alloc_pgtable(unsigned long size, int nid,
+ unsigned long region_start, unsigned long region_end)
{
+ unsigned long pa = 0;
void *pt;
- pt = __va(memblock_alloc_base(size, size, MEMBLOCK_ALLOC_ANYWHERE));
+ if (region_start || region_end) /* has region hint */
+ pa = memblock_alloc_range(size, size, region_start, region_end,
+ MEMBLOCK_NONE);
+ else if (nid != -1) /* has node hint */
+ pa = memblock_alloc_base_nid(size, size,
+ MEMBLOCK_ALLOC_ANYWHERE,
+ nid, MEMBLOCK_NONE);
+
+ if (!pa)
+ pa = memblock_alloc_base(size, size, MEMBLOCK_ALLOC_ANYWHERE);
+
+ BUG_ON(!pa);
+
+ pt = __va(pa);
memset(pt, 0, size);
return pt;
}
-int radix__map_kernel_page(unsigned long ea, unsigned long pa,
+static int early_map_kernel_page(unsigned long ea, unsigned long pa,
pgprot_t flags,
- unsigned int map_page_size)
+ unsigned int map_page_size,
+ int nid,
+ unsigned long region_start, unsigned long region_end)
{
+ unsigned long pfn = pa >> PAGE_SHIFT;
+ pgd_t *pgdp;
+ pud_t *pudp;
+ pmd_t *pmdp;
+ pte_t *ptep;
+
+ pgdp = pgd_offset_k(ea);
+ if (pgd_none(*pgdp)) {
+ pudp = early_alloc_pgtable(PUD_TABLE_SIZE, nid,
+ region_start, region_end);
+ pgd_populate(&init_mm, pgdp, pudp);
+ }
+ pudp = pud_offset(pgdp, ea);
+ if (map_page_size == PUD_SIZE) {
+ ptep = (pte_t *)pudp;
+ goto set_the_pte;
+ }
+ if (pud_none(*pudp)) {
+ pmdp = early_alloc_pgtable(PMD_TABLE_SIZE, nid,
+ region_start, region_end);
+ pud_populate(&init_mm, pudp, pmdp);
+ }
+ pmdp = pmd_offset(pudp, ea);
+ if (map_page_size == PMD_SIZE) {
+ ptep = pmdp_ptep(pmdp);
+ goto set_the_pte;
+ }
+ if (!pmd_present(*pmdp)) {
+ ptep = early_alloc_pgtable(PAGE_SIZE, nid,
+ region_start, region_end);
+ pmd_populate_kernel(&init_mm, pmdp, ptep);
+ }
+ ptep = pte_offset_kernel(pmdp, ea);
+
+set_the_pte:
+ set_pte_at(&init_mm, ea, ptep, pfn_pte(pfn, flags));
+ smp_wmb();
+ return 0;
+}
+
+/*
+ * nid, region_start, and region_end are hints to try to place the page
+ * table memory in the same node or region.
+ */
+static int __map_kernel_page(unsigned long ea, unsigned long pa,
+ pgprot_t flags,
+ unsigned int map_page_size,
+ int nid,
+ unsigned long region_start, unsigned long region_end)
+{
+ unsigned long pfn = pa >> PAGE_SHIFT;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
* Make sure task size is correct as per the max adddr
*/
BUILD_BUG_ON(TASK_SIZE_USER64 > RADIX_PGTABLE_RANGE);
- if (slab_is_available()) {
- pgdp = pgd_offset_k(ea);
- pudp = pud_alloc(&init_mm, pgdp, ea);
- if (!pudp)
- return -ENOMEM;
- if (map_page_size == PUD_SIZE) {
- ptep = (pte_t *)pudp;
- goto set_the_pte;
- }
- pmdp = pmd_alloc(&init_mm, pudp, ea);
- if (!pmdp)
- return -ENOMEM;
- if (map_page_size == PMD_SIZE) {
- ptep = pmdp_ptep(pmdp);
- goto set_the_pte;
- }
- ptep = pte_alloc_kernel(pmdp, ea);
- if (!ptep)
- return -ENOMEM;
- } else {
- pgdp = pgd_offset_k(ea);
- if (pgd_none(*pgdp)) {
- pudp = early_alloc_pgtable(PUD_TABLE_SIZE);
- BUG_ON(pudp == NULL);
- pgd_populate(&init_mm, pgdp, pudp);
- }
- pudp = pud_offset(pgdp, ea);
- if (map_page_size == PUD_SIZE) {
- ptep = (pte_t *)pudp;
- goto set_the_pte;
- }
- if (pud_none(*pudp)) {
- pmdp = early_alloc_pgtable(PMD_TABLE_SIZE);
- BUG_ON(pmdp == NULL);
- pud_populate(&init_mm, pudp, pmdp);
- }
- pmdp = pmd_offset(pudp, ea);
- if (map_page_size == PMD_SIZE) {
- ptep = pmdp_ptep(pmdp);
- goto set_the_pte;
- }
- if (!pmd_present(*pmdp)) {
- ptep = early_alloc_pgtable(PAGE_SIZE);
- BUG_ON(ptep == NULL);
- pmd_populate_kernel(&init_mm, pmdp, ptep);
- }
- ptep = pte_offset_kernel(pmdp, ea);
+
+ if (unlikely(!slab_is_available()))
+ return early_map_kernel_page(ea, pa, flags, map_page_size,
+ nid, region_start, region_end);
+
+ /*
+ * Should make page table allocation functions be able to take a
+ * node, so we can place kernel page tables on the right nodes after
+ * boot.
+ */
+ pgdp = pgd_offset_k(ea);
+ pudp = pud_alloc(&init_mm, pgdp, ea);
+ if (!pudp)
+ return -ENOMEM;
+ if (map_page_size == PUD_SIZE) {
+ ptep = (pte_t *)pudp;
+ goto set_the_pte;
}
+ pmdp = pmd_alloc(&init_mm, pudp, ea);
+ if (!pmdp)
+ return -ENOMEM;
+ if (map_page_size == PMD_SIZE) {
+ ptep = pmdp_ptep(pmdp);
+ goto set_the_pte;
+ }
+ ptep = pte_alloc_kernel(pmdp, ea);
+ if (!ptep)
+ return -ENOMEM;
set_the_pte:
- set_pte_at(&init_mm, ea, ptep, pfn_pte(pa >> PAGE_SHIFT, flags));
+ set_pte_at(&init_mm, ea, ptep, pfn_pte(pfn, flags));
smp_wmb();
return 0;
}
+int radix__map_kernel_page(unsigned long ea, unsigned long pa,
+ pgprot_t flags,
+ unsigned int map_page_size)
+{
+ return __map_kernel_page(ea, pa, flags, map_page_size, -1, 0, 0);
+}
+
#ifdef CONFIG_STRICT_KERNEL_RWX
void radix__change_memory_range(unsigned long start, unsigned long end,
unsigned long clear)
}
static int __meminit create_physical_mapping(unsigned long start,
- unsigned long end)
+ unsigned long end,
+ int nid)
{
unsigned long vaddr, addr, mapping_size = 0;
pgprot_t prot;
else
prot = PAGE_KERNEL;
- rc = radix__map_kernel_page(vaddr, addr, prot, mapping_size);
+ rc = __map_kernel_page(vaddr, addr, prot, mapping_size, nid, start, end);
if (rc)
return rc;
}
return 0;
}
-static void __init radix_init_pgtable(void)
+void __init radix_init_pgtable(void)
{
unsigned long rts_field;
struct memblock_region *reg;
/*
* Create the linear mapping, using standard page size for now
*/
- for_each_memblock(memory, reg)
+ for_each_memblock(memory, reg) {
+ /*
+ * The memblock allocator is up at this point, so the
+ * page tables will be allocated within the range. No
+ * need or a node (which we don't have yet).
+ */
WARN_ON(create_physical_mapping(reg->base,
- reg->base + reg->size));
+ reg->base + reg->size,
+ -1));
+ }
/* Find out how many PID bits are supported */
if (cpu_has_feature(CPU_FTR_HVMODE)) {
* host.
*/
BUG_ON(PRTB_SIZE_SHIFT > 36);
- process_tb = early_alloc_pgtable(1UL << PRTB_SIZE_SHIFT);
+ process_tb = early_alloc_pgtable(1UL << PRTB_SIZE_SHIFT, -1, 0, 0);
/*
* Fill in the process table.
*/
spin_unlock(&init_mm.page_table_lock);
pte_clear(&init_mm, params->aligned_start, params->pte);
- create_physical_mapping(params->aligned_start, params->start);
- create_physical_mapping(params->end, params->aligned_end);
+ create_physical_mapping(params->aligned_start, params->start, -1);
+ create_physical_mapping(params->end, params->aligned_end, -1);
spin_lock(&init_mm.page_table_lock);
return 0;
}
radix__flush_tlb_kernel_range(start, end);
}
-int __meminit radix__create_section_mapping(unsigned long start, unsigned long end)
+int __meminit radix__create_section_mapping(unsigned long start, unsigned long end, int nid)
{
- return create_physical_mapping(start, end);
+ return create_physical_mapping(start, end, nid);
}
int __meminit radix__remove_section_mapping(unsigned long start, unsigned long end)
#endif /* CONFIG_MEMORY_HOTPLUG */
#ifdef CONFIG_SPARSEMEM_VMEMMAP
+static int __map_kernel_page_nid(unsigned long ea, unsigned long pa,
+ pgprot_t flags, unsigned int map_page_size,
+ int nid)
+{
+ return __map_kernel_page(ea, pa, flags, map_page_size, nid, 0, 0);
+}
+
int __meminit radix__vmemmap_create_mapping(unsigned long start,
unsigned long page_size,
unsigned long phys)
{
/* Create a PTE encoding */
unsigned long flags = _PAGE_PRESENT | _PAGE_ACCESSED | _PAGE_KERNEL_RW;
+ int nid = early_pfn_to_nid(phys >> PAGE_SHIFT);
+ int ret;
+
+ ret = __map_kernel_page_nid(start, phys, __pgprot(flags), page_size, nid);
+ BUG_ON(ret);
- BUG_ON(radix__map_kernel_page(start, phys, __pgprot(flags), page_size));
return 0;
}
projects / linux-2.6-block.git / blobdiff