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sys/sys_io.h: Memory mapped I/O APIs must be pointer-sized, not 32 bit!

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The mm_reg_t type used to represent a MMIO address (e.g. in the
sys_write*() APIs) was defined to a uint32_t, which is obviously wrong
on 64 bit systems where devices can be mapped anywhere.

Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This commit is contained in:
Andy Ross 2020-06-11 09:50:29 -07:00 • committed by Carles Cufí
commit 83464f11e1
1 changed files with 1 additions and 1 deletions
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include/sys/sys_io.h
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@ -17,7 +17,7 @@ extern "C" {
#endif #endif
typedef uint32_t io_port_t; typedef uint32_t io_port_t;
typedef uint32_t mm_reg_t; typedef uintptr_t mm_reg_t;
typedef uintptr_t mem_addr_t; typedef uintptr_t mem_addr_t;
/* Port I/O functions */ /* Port I/O functions */