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Diffstat (limited to 'arch/microblaze/mm/init.c')
-rw-r--r--arch/microblaze/mm/init.c117
1 files changed, 26 insertions, 91 deletions
diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c
index ce80823051b..77bc7c7e652 100644
--- a/arch/microblaze/mm/init.c
+++ b/arch/microblaze/mm/init.c
@@ -71,28 +71,17 @@ static void __init highmem_init(void)
kmap_prot = PAGE_KERNEL;
}
-static unsigned long highmem_setup(void)
+static void highmem_setup(void)
{
unsigned long pfn;
- unsigned long reservedpages = 0;
for (pfn = max_low_pfn; pfn < max_pfn; ++pfn) {
struct page *page = pfn_to_page(pfn);
/* FIXME not sure about */
- if (memblock_is_reserved(pfn << PAGE_SHIFT))
- continue;
- ClearPageReserved(page);
- init_page_count(page);
- __free_page(page);
- totalhigh_pages++;
- reservedpages++;
+ if (!memblock_is_reserved(pfn << PAGE_SHIFT))
+ free_highmem_page(page);
}
- totalram_pages += totalhigh_pages;
- printk(KERN_INFO "High memory: %luk\n",
- totalhigh_pages << (PAGE_SHIFT-10));
-
- return reservedpages;
}
#endif /* CONFIG_HIGHMEM */
@@ -142,8 +131,8 @@ void __init setup_memory(void)
((u32)_text <= (memory_start + lowmem_size - 1))) {
memory_size = lowmem_size;
PAGE_OFFSET = memory_start;
- printk(KERN_INFO "%s: Main mem: 0x%x, "
- "size 0x%08x\n", __func__, (u32) memory_start,
+ pr_info("%s: Main mem: 0x%x, size 0x%08x\n",
+ __func__, (u32) memory_start,
(u32) memory_size);
break;
}
@@ -158,7 +147,7 @@ void __init setup_memory(void)
kernel_align_start = PAGE_DOWN((u32)_text);
/* ALIGN can be remove because _end in vmlinux.lds.S is align */
kernel_align_size = PAGE_UP((u32)klimit) - kernel_align_start;
- printk(KERN_INFO "%s: kernel addr:0x%08x-0x%08x size=0x%08x\n",
+ pr_info("%s: kernel addr:0x%08x-0x%08x size=0x%08x\n",
__func__, kernel_align_start, kernel_align_start
+ kernel_align_size, kernel_align_size);
memblock_reserve(kernel_align_start, kernel_align_size);
@@ -171,20 +160,19 @@ void __init setup_memory(void)
* min_low_pfn - the first page (mm/bootmem.c - node_boot_start)
* max_low_pfn
* max_mapnr - the first unused page (mm/bootmem.c - node_low_pfn)
- * num_physpages - number of all pages
*/
/* memory start is from the kernel end (aligned) to higher addr */
min_low_pfn = memory_start >> PAGE_SHIFT; /* minimum for allocation */
/* RAM is assumed contiguous */
- num_physpages = max_mapnr = memory_size >> PAGE_SHIFT;
+ max_mapnr = memory_size >> PAGE_SHIFT;
max_low_pfn = ((u64)memory_start + (u64)lowmem_size) >> PAGE_SHIFT;
max_pfn = ((u64)memory_start + (u64)memory_size) >> PAGE_SHIFT;
- printk(KERN_INFO "%s: max_mapnr: %#lx\n", __func__, max_mapnr);
- printk(KERN_INFO "%s: min_low_pfn: %#lx\n", __func__, min_low_pfn);
- printk(KERN_INFO "%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
- printk(KERN_INFO "%s: max_pfn: %#lx\n", __func__, max_pfn);
+ pr_info("%s: max_mapnr: %#lx\n", __func__, max_mapnr);
+ pr_info("%s: min_low_pfn: %#lx\n", __func__, min_low_pfn);
+ pr_info("%s: max_low_pfn: %#lx\n", __func__, max_low_pfn);
+ pr_info("%s: max_pfn: %#lx\n", __func__, max_pfn);
/*
* Find an area to use for the bootmem bitmap.
@@ -204,7 +192,8 @@ void __init setup_memory(void)
start_pfn = memblock_region_memory_base_pfn(reg);
end_pfn = memblock_region_memory_end_pfn(reg);
memblock_set_node(start_pfn << PAGE_SHIFT,
- (end_pfn - start_pfn) << PAGE_SHIFT, 0);
+ (end_pfn - start_pfn) << PAGE_SHIFT,
+ &memblock.memory, 0);
}
/* free bootmem is whole main memory */
@@ -236,84 +225,29 @@ void __init setup_memory(void)
paging_init();
}
-void free_init_pages(char *what, unsigned long begin, unsigned long end)
-{
- unsigned long addr;
-
- for (addr = begin; addr < end; addr += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(addr));
- init_page_count(virt_to_page(addr));
- free_page(addr);
- totalram_pages++;
- }
- printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
-}
-
#ifdef CONFIG_BLK_DEV_INITRD
void free_initrd_mem(unsigned long start, unsigned long end)
{
- int pages = 0;
- for (; start < end; start += PAGE_SIZE) {
- ClearPageReserved(virt_to_page(start));
- init_page_count(virt_to_page(start));
- free_page(start);
- totalram_pages++;
- pages++;
- }
- printk(KERN_NOTICE "Freeing initrd memory: %dk freed\n",
- (int)(pages * (PAGE_SIZE / 1024)));
+ free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
#endif
void free_initmem(void)
{
- free_init_pages("unused kernel memory",
- (unsigned long)(&__init_begin),
- (unsigned long)(&__init_end));
+ free_initmem_default(-1);
}
void __init mem_init(void)
{
- pg_data_t *pgdat;
- unsigned long reservedpages = 0, codesize, initsize, datasize, bsssize;
-
high_memory = (void *)__va(memory_start + lowmem_size - 1);
/* this will put all memory onto the freelists */
- totalram_pages += free_all_bootmem();
-
- for_each_online_pgdat(pgdat) {
- unsigned long i;
- struct page *page;
-
- for (i = 0; i < pgdat->node_spanned_pages; i++) {
- if (!pfn_valid(pgdat->node_start_pfn + i))
- continue;
- page = pgdat_page_nr(pgdat, i);
- if (PageReserved(page))
- reservedpages++;
- }
- }
-
+ free_all_bootmem();
#ifdef CONFIG_HIGHMEM
- reservedpages -= highmem_setup();
+ highmem_setup();
#endif
- codesize = (unsigned long)&_sdata - (unsigned long)&_stext;
- datasize = (unsigned long)&_edata - (unsigned long)&_sdata;
- initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin;
- bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start;
-
- pr_info("Memory: %luk/%luk available (%luk kernel code, "
- "%luk reserved, %luk data, %luk bss, %luk init)\n",
- nr_free_pages() << (PAGE_SHIFT-10),
- num_physpages << (PAGE_SHIFT-10),
- codesize >> 10,
- reservedpages << (PAGE_SHIFT-10),
- datasize >> 10,
- bsssize >> 10,
- initsize >> 10);
-
+ mem_init_print_info(NULL);
#ifdef CONFIG_MMU
pr_info("Kernel virtual memory layout:\n");
pr_info(" * 0x%08lx..0x%08lx : fixmap\n", FIXADDR_START, FIXADDR_TOP);
@@ -394,17 +328,17 @@ asmlinkage void __init mmu_init(void)
unsigned int kstart, ksize;
if (!memblock.reserved.cnt) {
- printk(KERN_EMERG "Error memory count\n");
+ pr_emerg("Error memory count\n");
machine_restart(NULL);
}
if ((u32) memblock.memory.regions[0].size < 0x400000) {
- printk(KERN_EMERG "Memory must be greater than 4MB\n");
+ pr_emerg("Memory must be greater than 4MB\n");
machine_restart(NULL);
}
if ((u32) memblock.memory.regions[0].size < kernel_tlb) {
- printk(KERN_EMERG "Kernel size is greater than memory node\n");
+ pr_emerg("Kernel size is greater than memory node\n");
machine_restart(NULL);
}
@@ -432,10 +366,11 @@ asmlinkage void __init mmu_init(void)
#if defined(CONFIG_BLK_DEV_INITRD)
/* Remove the init RAM disk from the available memory. */
-/* if (initrd_start) {
- mem_pieces_remove(&phys_avail, __pa(initrd_start),
- initrd_end - initrd_start, 1);
- }*/
+ if (initrd_start) {
+ unsigned long size;
+ size = initrd_end - initrd_start;
+ memblock_reserve(__virt_to_phys(initrd_start), size);
+ }
#endif /* CONFIG_BLK_DEV_INITRD */
/* Initialize the MMU hardware */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 12:16:28 +0000