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Author	SHA1	Message	Date
Paul Cercueil	67512a8cf5	MIPS: Avoid macro redefinitions To be able to compile the kernel with LTO, the assembler macros cannot be declared in the global scope, or the compiler will complain about redefined macros. Update the code so that macros are defined then undefined when they are used. Note that virt support was added in 2.24 and xpa in 2.25. So we still need the TOOLCHAIN defines for them. Signed-off-by: Paul Cercueil <paul@crapouillou.net> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>	2021-09-23 11:23:35 +02:00
Masahiro Yamada	6074c33c6b	MIPS: mark ginvt() as __always_inline To meet the 'i' (immediate) constraint for the asm operands, this function must be always inlined. Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: linux-kernel@vger.kernel.org	2019-05-22 18:45:52 -07:00
Paul Burton	535113896e	MIPS: Add GINVT instruction helpers Add a family of ginvt_* functions making it easy to emit a GINVT instruction to globally invalidate TLB entries. We make use of the _ASM_MACRO infrastructure to support emitting the instructions even if the assembler isn't new enough to support them natively. An associated STYPE_GINV definition & sync_ginv() function are added to emit a sync instruction of type 0x14, which operates as a completion barrier for these new GINVT (and GINVI) instructions. Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: linux-mips@vger.kernel.org	2019-02-04 10:56:35 -08:00

Author

SHA1

Message

Date

Paul Cercueil

67512a8cf5

MIPS: Avoid macro redefinitions

To be able to compile the kernel with LTO, the assembler macros cannot
be declared in the global scope, or the compiler will complain about
redefined macros.

Update the code so that macros are defined then undefined when they are
used.

Note that virt support was added in 2.24 and xpa in 2.25. So we still
need the TOOLCHAIN defines for them.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>

2021-09-23 11:23:35 +02:00

Masahiro Yamada

6074c33c6b

MIPS: mark ginvt() as __always_inline

To meet the 'i' (immediate) constraint for the asm operands,
this function must be always inlined.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: linux-kernel@vger.kernel.org

2019-05-22 18:45:52 -07:00

Paul Burton

535113896e

MIPS: Add GINVT instruction helpers

Add a family of ginvt_* functions making it easy to emit a GINVT
instruction to globally invalidate TLB entries. We make use of the
_ASM_MACRO infrastructure to support emitting the instructions even if
the assembler isn't new enough to support them natively.

An associated STYPE_GINV definition & sync_ginv() function are added to
emit a sync instruction of type 0x14, which operates as a completion
barrier for these new GINVT (and GINVI) instructions.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org

2019-02-04 10:56:35 -08:00

3 Commits