* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
*/
#include <asm/io.h>
#include <asm/uaccess.h>
+#include <asm-generic/io-64-nonatomic-lo-hi.h>
#include "internal.h"
static struct workqueue_struct *kacpid_wq;
static struct workqueue_struct *kacpi_notify_wq;
static struct workqueue_struct *kacpi_hotplug_wq;
+static bool acpi_os_initialized;
/*
* This list of permanent mappings is for memory that may be accessed from
EXPORT_SYMBOL(acpi_os_write_port);
-#ifdef readq
-static inline u64 read64(const volatile void __iomem *addr)
-{
- return readq(addr);
-}
-#else
-static inline u64 read64(const volatile void __iomem *addr)
-{
- u64 l, h;
- l = readl(addr);
- h = readl(addr+4);
- return l | (h << 32);
-}
-#endif
-
acpi_status
acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
{
*(u32 *) value = readl(virt_addr);
break;
case 64:
- *(u64 *) value = read64(virt_addr);
+ *(u64 *) value = readq(virt_addr);
break;
default:
BUG();
return AE_OK;
}
-#ifdef writeq
-static inline void write64(u64 val, volatile void __iomem *addr)
-{
- writeq(val, addr);
-}
-#else
-static inline void write64(u64 val, volatile void __iomem *addr)
-{
- writel(val, addr);
- writel(val>>32, addr+4);
-}
-#endif
-
acpi_status
acpi_os_write_memory(acpi_physical_address phys_addr, u64 value, u32 width)
{
writel(value, virt_addr);
break;
case 64:
- write64(value, virt_addr);
+ writeq(value, virt_addr);
break;
default:
BUG();
long jiffies;
int ret = 0;
+ if (!acpi_os_initialized)
+ return AE_OK;
+
if (!sem || (units < 1))
return AE_BAD_PARAMETER;
{
struct semaphore *sem = (struct semaphore *)handle;
+ if (!acpi_os_initialized)
+ return AE_OK;
+
if (!sem || (units < 1))
return AE_BAD_PARAMETER;
rv = acpi_os_map_generic_address(&acpi_gbl_FADT.reset_register);
pr_debug(PREFIX "%s: map reset_reg status %d\n", __func__, rv);
}
+ acpi_os_initialized = true;
return AE_OK;
}