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ACPI / osl: replace custom implementation of readq / writeq 

The readq() and writeq() helpers are available in the
asm-generic/io-64-nonatomic-hi-lo.h and asm-generic/io-64-nonatomic-lo-hi.h
headers. Replace custom implementation by the generic helpers.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Andy Shevchenko 2015-08-17 17:28:46 +03:00 committed by Rafael J. Wysocki
parent c13dcf9f2d
commit 3277b4ea21
1 changed files with 3 additions and 30 deletions
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33
drivers/acpi/osl.c
View File

@ -47,6 +47,7 @@
#include <asm/io.h>
#include <asm/uaccess.h>
#include <asm-generic/io-64-nonatomic-lo-hi.h>
#include "internal.h"
@ -947,21 +948,6 @@ acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width)
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)
{
@ -994,7 +980,7 @@ 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();
@ -1008,19 +994,6 @@ acpi_os_read_memory(acpi_physical_address phys_addr, u64 *value, u32 width)
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)
{
@ -1049,7 +1022,7 @@ 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();