d/numam-spdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

mmio: add functions for 1 and 2 byte I/O accesses

Browse Source 
Change-Id: I7a325ddd8db3424207cf2e561c6d6e894f549989
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/382073
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
This commit is contained in:
Daniel Verkamp 2017-10-10 16:41:18 -07:00 committed by Jim Harris
parent 201c0188ac
commit 15e978340d
1 changed files with 28 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
include/spdk/mmio.h
View File

@ -52,6 +52,34 @@ extern "C" {
#define SPDK_MMIO_64BIT 0
#endif
static inline uint8_t
spdk_mmio_read_1(const volatile uint8_t *addr)
{
spdk_compiler_barrier();
return *addr;
}
static inline void
spdk_mmio_write_1(volatile uint8_t *addr, uint8_t val)
{
spdk_compiler_barrier();
*addr = val;
}
static inline uint16_t
spdk_mmio_read_2(const volatile uint16_t *addr)
{
spdk_compiler_barrier();
return *addr;
}
static inline void
spdk_mmio_write_2(volatile uint16_t *addr, uint16_t val)
{
spdk_compiler_barrier();
*addr = val;
}
static inline uint32_t
spdk_mmio_read_4(const volatile uint32_t *addr)
{