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| author | Ivan Gorinov <ivan.gorinov@intel.com> | 2018-04-06 14:43:04 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2018-04-16 16:54:51 +0800 |
| commit | 53cabe3d8eaac128788db9bce3f9d4874068806d (patch) | |
| tree | 4a063fb5c2bd003c5af8a37a07da0d9c38f1512f /arch/x86/include/asm/cmos_layout.h | |
| parent | ebca902aeb3af3eaedd2787928184ad84a86b98f (diff) | |
x86: Add 64-bit memory-mapped I/O functions
Add readq() and writeq() definitions for x86.
Please note: in 32-bit code readq/writeq will generate two 32-bit
memory access instructions instead of one atomic 64-bit operation.
Signed-off-by: Ivan Gorinov <ivan.gorinov@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'arch/x86/include/asm/cmos_layout.h')
0 files changed, 0 insertions, 0 deletions