#include <linux/workqueue.h>
#include <linux/nmi.h>
#include <linux/acpi.h>
+#include <linux/acpi_io.h>
#include <linux/efi.h>
#include <linux/ioport.h>
#include <linux/list.h>
acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
{
struct acpi_ioremap *map, *tmp_map;
- unsigned long flags, pg_sz;
+ unsigned long flags;
void __iomem *virt;
- phys_addr_t pg_off;
+ acpi_physical_address pg_off;
+ acpi_size pg_sz;
if (phys > ULONG_MAX) {
printk(KERN_ERR PREFIX "Cannot map memory that high\n");
pg_off = round_down(phys, PAGE_SIZE);
pg_sz = round_up(phys + size, PAGE_SIZE) - pg_off;
- virt = ioremap_cache(pg_off, pg_sz);
+ virt = acpi_os_ioremap(pg_off, pg_sz);
if (!virt) {
kfree(map);
return NULL;
acpi_status
acpi_os_read_memory(acpi_physical_address phys_addr, u32 * value, u32 width)
{
- u32 dummy;
void __iomem *virt_addr;
- int size = width / 8, unmap = 0;
+ unsigned int size = width / 8;
+ bool unmap = false;
+ u32 dummy;
rcu_read_lock();
virt_addr = acpi_map_vaddr_lookup(phys_addr, size);
- rcu_read_unlock();
if (!virt_addr) {
- virt_addr = ioremap_cache(phys_addr, size);
- unmap = 1;
+ rcu_read_unlock();
+ virt_addr = acpi_os_ioremap(phys_addr, size);
+ if (!virt_addr)
+ return AE_BAD_ADDRESS;
+ unmap = true;
}
+
if (!value)
value = &dummy;
if (unmap)
iounmap(virt_addr);
+ else
+ rcu_read_unlock();
return AE_OK;
}
acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width)
{
void __iomem *virt_addr;
- int size = width / 8, unmap = 0;
+ unsigned int size = width / 8;
+ bool unmap = false;
rcu_read_lock();
virt_addr = acpi_map_vaddr_lookup(phys_addr, size);
- rcu_read_unlock();
if (!virt_addr) {
- virt_addr = ioremap_cache(phys_addr, size);
- unmap = 1;
+ rcu_read_unlock();
+ virt_addr = acpi_os_ioremap(phys_addr, size);
+ if (!virt_addr)
+ return AE_BAD_ADDRESS;
+ unmap = true;
}
switch (width) {
if (unmap)
iounmap(virt_addr);
+ else
+ rcu_read_unlock();
return AE_OK;
}