{
if (efi_enabled) {
addr->pointer_type = ACPI_PHYSICAL_POINTER;
- if (efi.acpi20)
- addr->pointer.physical =
- (acpi_physical_address) virt_to_phys(efi.acpi20);
- else if (efi.acpi)
- addr->pointer.physical =
- (acpi_physical_address) virt_to_phys(efi.acpi);
+ if (efi.acpi20 != EFI_INVALID_TABLE_ADDR)
+ addr->pointer.physical = efi.acpi20;
+ else if (efi.acpi != EFI_INVALID_TABLE_ADDR)
+ addr->pointer.physical = efi.acpi;
else {
printk(KERN_ERR PREFIX
"System description tables not found\n");
acpi_os_map_memory(acpi_physical_address phys, acpi_size size,
void __iomem ** virt)
{
- if (efi_enabled) {
- if (EFI_MEMORY_WB & efi_mem_attributes(phys)) {
- *virt = (void __iomem *)phys_to_virt(phys);
- } else {
- *virt = ioremap(phys, size);
- }
- } else {
- if (phys > ULONG_MAX) {
- printk(KERN_ERR PREFIX "Cannot map memory that high\n");
- return AE_BAD_PARAMETER;
- }
- /*
- * ioremap checks to ensure this is in reserved space
- */
- *virt = ioremap((unsigned long)phys, size);
+ if (phys > ULONG_MAX) {
+ printk(KERN_ERR PREFIX "Cannot map memory that high\n");
+ return AE_BAD_PARAMETER;
}
+ /*
+ * ioremap checks to ensure this is in reserved space
+ */
+ *virt = ioremap((unsigned long)phys, size);
if (!*virt)
return AE_NO_MEMORY;
return AE_OK;
}
+EXPORT_SYMBOL_GPL(acpi_os_map_memory);
void acpi_os_unmap_memory(void __iomem * virt, acpi_size size)
{
iounmap(virt);
}
+EXPORT_SYMBOL_GPL(acpi_os_unmap_memory);
#ifdef ACPI_FUTURE_USAGE
acpi_status
{
u32 dummy;
void __iomem *virt_addr;
- int iomem = 0;
- if (efi_enabled) {
- if (EFI_MEMORY_WB & efi_mem_attributes(phys_addr)) {
- /* HACK ALERT! We can use readb/w/l on real memory too.. */
- virt_addr = (void __iomem *)phys_to_virt(phys_addr);
- } else {
- iomem = 1;
- virt_addr = ioremap(phys_addr, width);
- }
- } else
- virt_addr = (void __iomem *)phys_to_virt(phys_addr);
+ virt_addr = ioremap(phys_addr, width);
if (!value)
value = &dummy;
BUG();
}
- if (efi_enabled) {
- if (iomem)
- iounmap(virt_addr);
- }
+ iounmap(virt_addr);
return AE_OK;
}
acpi_os_write_memory(acpi_physical_address phys_addr, u32 value, u32 width)
{
void __iomem *virt_addr;
- int iomem = 0;
- if (efi_enabled) {
- if (EFI_MEMORY_WB & efi_mem_attributes(phys_addr)) {
- /* HACK ALERT! We can use writeb/w/l on real memory too */
- virt_addr = (void __iomem *)phys_to_virt(phys_addr);
- } else {
- iomem = 1;
- virt_addr = ioremap(phys_addr, width);
- }
- } else
- virt_addr = (void __iomem *)phys_to_virt(phys_addr);
+ virt_addr = ioremap(phys_addr, width);
switch (width) {
case 8:
BUG();
}
- if (iomem)
- iounmap(virt_addr);
+ iounmap(virt_addr);
return AE_OK;
}
static const int quantum_ms = 1000 / HZ;
ret = down_trylock(sem);
- for (i = timeout; (i > 0 && ret < 0); i -= quantum_ms) {
+ for (i = timeout; (i > 0 && ret != 0); i -= quantum_ms) {
schedule_timeout_interruptible(1);
ret = down_trylock(sem);
}
* Acquire a spinlock.
*
* handle is a pointer to the spinlock_t.
- * flags is *not* the result of save_flags - it is an ACPI-specific flag variable
- * that indicates whether we are at interrupt level.
*/
-unsigned long acpi_os_acquire_lock(acpi_handle handle)
+acpi_cpu_flags acpi_os_acquire_lock(acpi_handle handle)
{
- unsigned long flags;
+ acpi_cpu_flags flags;
spin_lock_irqsave((spinlock_t *) handle, flags);
return flags;
}
* Release a spinlock. See above.
*/
-void acpi_os_release_lock(acpi_handle handle, unsigned long flags)
+void acpi_os_release_lock(acpi_handle handle, acpi_cpu_flags flags)
{
spin_unlock_irqrestore((spinlock_t *) handle, flags);
}