static void free_owl_reserved_memory(unsigned int free_start, unsigned int free_size)
{
unsigned long n, start, end;
#ifdef CONFIG_HIGHMEM
unsigned long max_low = max_low_pfn + PHYS_PFN_OFFSET;
#endif
start = free_start;
end = free_start + free_size;
if( (start >> PAGE_SHIFT) <= max_low ) {
if( (end >> PAGE_SHIFT) > max_low )
end = max_low << PAGE_SHIFT;
n = free_reserved_area(__phys_to_virt(start), __phys_to_virt(end), 0, NULL);
printk("free reserve pages %lu to buddy system\n", n);
}
#ifdef CONFIG_HIGHMEM
start = free_start >> PAGE_SHIFT;
end = (free_start + free_size) >> PAGE_SHIFT;
if( end > max_low ) {
if(start < max_low)
start = max_low;
for (n = start; n < end; n++)
free_highmem_page(pfn_to_page(n));
printk("free reserve high memory pages %lu to buddy system\n", end - start);
}
#endif
}
void __init
nautilus_init_pci(void)
{
struct pci_controller *hose = hose_head;
struct pci_bus *bus;
struct pci_dev *irongate;
unsigned long bus_align, bus_size, pci_mem;
unsigned long memtop = max_low_pfn << PAGE_SHIFT;
/* Scan our single hose. */
bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
if (!bus)
return;
hose->bus = bus;
pcibios_claim_one_bus(bus);
irongate = pci_get_bus_and_slot(0, 0);
bus->self = irongate;
bus->resource[0] = &irongate_io;
bus->resource[1] = &irongate_mem;
pci_bus_size_bridges(bus);
/* IO port range. */
bus->resource[0]->start = 0;
bus->resource[0]->end = 0xffff;
/* Set up PCI memory range - limit is hardwired to 0xffffffff,
base must be at aligned to 16Mb. */
bus_align = bus->resource[1]->start;
bus_size = bus->resource[1]->end + 1 - bus_align;
if (bus_align < 0x1000000UL)
bus_align = 0x1000000UL;
pci_mem = (0x100000000UL - bus_size) & -bus_align;
bus->resource[1]->start = pci_mem;
bus->resource[1]->end = 0xffffffffUL;
if (request_resource(&iomem_resource, bus->resource[1]) < 0)
printk(KERN_ERR "Failed to request MEM on hose 0\n");
if (pci_mem < memtop)
memtop = pci_mem;
if (memtop > alpha_mv.min_mem_address) {
free_reserved_area(__va(alpha_mv.min_mem_address),
__va(memtop), -1, NULL);
printk("nautilus_init_pci: %ldk freed\n",
(memtop - alpha_mv.min_mem_address) >> 10);
}
void apply_alternatives(void *start, size_t length)
{
struct alt_region region = {
.begin = start,
.end = start + length,
};
__apply_alternatives(®ion);
}
void free_alternatives_memory(void)
{
free_reserved_area(__alt_instructions, __alt_instructions_end,
0, "alternatives");
}
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
}
void free_alternatives_memory(void)
{
free_reserved_area(__alt_instructions, __alt_instructions_end,
0, "alternatives");
}
static __init void kvm_free_tmp(void)
{
free_reserved_area(&kvm_tmp[kvm_tmp_index],
&kvm_tmp[ARRAY_SIZE(kvm_tmp)], -1, NULL);
}
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
void __init free_initrd_mem(unsigned long start, unsigned long end)
{
free_reserved_area(start, end, 0, "initrd");
}
void free_initrd_mem(unsigned long start, unsigned long end)
{
if (initrd_is_mapped)
free_reserved_area((void *)start, (void *)end, -1, "initrd");
}
/**
* platform_release_memory - release pre-allocated memory
* @ptr: pointer to memory to release
* @size: size of resource
*
* This must only be called for memory allocated or reserved via the boot
* memory allocator.
*/
void platform_release_memory(void *ptr, int size)
{
free_reserved_area(ptr, ptr + size, -1, NULL);
}
