MIPS: Introduce _EXT assembler macro
This patch adds a simple macro to wrap the ext instruction which was introduced with MIPSR2, and fall back to a shift & and pair for pre-MIPSR2 CPUs. This will be used in a subsequent patch. Signed-off-by: Paul Burton <paul.burton@imgtec.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/6358/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
parent
6d9727a7a5
commit
1d68808748
|
@ -169,6 +169,17 @@
|
|||
fpu_restore_16even \thread \tmp
|
||||
.endm
|
||||
|
||||
#ifdef CONFIG_CPU_MIPSR2
|
||||
.macro _EXT rd, rs, p, s
|
||||
ext \rd, \rs, \p, \s
|
||||
.endm
|
||||
#else /* !CONFIG_CPU_MIPSR2 */
|
||||
.macro _EXT rd, rs, p, s
|
||||
srl \rd, \rs, \p
|
||||
andi \rd, \rd, (1 << \s) - 1
|
||||
.endm
|
||||
#endif /* !CONFIG_CPU_MIPSR2 */
|
||||
|
||||
/*
|
||||
* Temporary until all gas have MT ASE support
|
||||
*/
|
||||
|
|
Loading…
Reference in a new issue