diff options
| author | Nicholas Piggin <npiggin@gmail.com> | 2017-05-09 13:16:52 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-05-09 23:42:55 +1000 |
| commit | 5a61ef74f269f2573f48fa53607a8911216c3326 (patch) | |
| tree | 5282bc7ceb24c4864d1060bfe59688e72027b1cb /arch/powerpc/include/uapi/asm | |
| parent | 75bda95048a4d2c5ff04036bd0181bc84085d8b2 (diff) | |
powerpc/64s: Support new device tree binding for discovering CPU features
The ibm,powerpc-cpu-features device tree binding describes CPU features with
ASCII names and extensible compatibility, privilege, and enablement metadata
that allows improved flexibility and compatibility with new hardware.
The interface is described in detail in ibm,powerpc-cpu-features.txt in this
patch.
Currently this code is not enabled by default, and there are no released
firmwares that provide the binding.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/uapi/asm')
| -rw-r--r-- | arch/powerpc/include/uapi/asm/cputable.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/include/uapi/asm/cputable.h b/arch/powerpc/include/uapi/asm/cputable.h index f63c96cd3608..3e7ce86d5c13 100644 --- a/arch/powerpc/include/uapi/asm/cputable.h +++ b/arch/powerpc/include/uapi/asm/cputable.h @@ -47,4 +47,11 @@ #define PPC_FEATURE2_ARCH_3_00 0x00800000 /* ISA 3.00 */ #define PPC_FEATURE2_HAS_IEEE128 0x00400000 /* VSX IEEE Binary Float 128-bit */ +/* + * IMPORTANT! + * All future PPC_FEATURE definitions should be allocated in cooperation with + * OPAL / skiboot firmware, in accordance with the ibm,powerpc-cpu-features + * device tree binding. + */ + #endif /* _UAPI__ASM_POWERPC_CPUTABLE_H */ |