From: Balamuruhan S <bala24@linux.ibm.com>
To: Jordan Niethe <jniethe5@gmail.com>, linuxppc-dev@lists.ozlabs.org
Cc: alistair@popple.id.au, npiggin@gmail.com, dja@axtens.net
Subject: Re: [PATCH v5 07/21] powerpc: Use a function for byte swapping instructions
Date: Tue, 07 Apr 2020 13:12:09 +0530 [thread overview]
Message-ID: <d6dd4d8ae30b7e10e0a7ca6687a10d902014069e.camel@linux.ibm.com> (raw)
In-Reply-To: <20200406080936.7180-8-jniethe5@gmail.com>
On Mon, 2020-04-06 at 18:09 +1000, Jordan Niethe wrote:
> Use a function for byte swapping instructions in preparation of a more
> complicated instruction type.
Reviewed-by: Balamuruhan S <bala24@linux.ibm.com>
>
> Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
> ---
> arch/powerpc/include/asm/inst.h | 5 +++++
> arch/powerpc/kernel/align.c | 2 +-
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/include/asm/inst.h
> b/arch/powerpc/include/asm/inst.h
> index 15f570bef936..78eb1481f1f6 100644
> --- a/arch/powerpc/include/asm/inst.h
> +++ b/arch/powerpc/include/asm/inst.h
> @@ -18,4 +18,9 @@ static inline int ppc_inst_opcode(u32 x)
> return x >> 26;
> }
>
> +static inline u32 ppc_inst_swab(u32 x)
> +{
> + return ppc_inst(swab32(ppc_inst_val(x)));
> +}
> +
> #endif /* _ASM_INST_H */
> diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
> index a83d32c6513d..46870cf6a6dc 100644
> --- a/arch/powerpc/kernel/align.c
> +++ b/arch/powerpc/kernel/align.c
> @@ -310,7 +310,7 @@ int fix_alignment(struct pt_regs *regs)
> /* We don't handle PPC little-endian any more... */
> if (cpu_has_feature(CPU_FTR_PPC_LE))
> return -EIO;
> - instr = swab32(instr);
> + instr = ppc_inst_swab(instr);
> }
>
> #ifdef CONFIG_SPE
next prev parent reply other threads:[~2020-04-07 7:44 UTC|newest]
Thread overview: 66+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-04-06 8:09 [PATCH v5 00/21] Initial Prefixed Instruction support Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 01/21] powerpc/xmon: Remove store_inst() for patch_instruction() Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 02/21] powerpc/xmon: Move out-of-line instructions to text section Jordan Niethe
2020-04-07 6:45 ` Balamuruhan S
2020-04-09 6:11 ` Christophe Leroy
2020-04-09 7:26 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 03/21] powerpc: Change calling convention for create_branch() et. al Jordan Niethe
2020-04-06 10:25 ` kbuild test robot
2020-04-07 6:10 ` Balamuruhan S
2020-04-07 6:35 ` Jordan Niethe
2020-04-07 6:59 ` Balamuruhan S
2020-04-06 8:09 ` [PATCH v5 04/21] powerpc: Use a macro for creating instructions from u32s Jordan Niethe
2020-04-07 6:40 ` Balamuruhan S
2020-04-07 8:27 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 05/21] powerpc: Use a function for getting the instruction op code Jordan Niethe
2020-04-06 8:22 ` Christophe Leroy
2020-04-06 9:38 ` Jordan Niethe
2020-04-07 7:04 ` Balamuruhan S
2020-04-07 8:32 ` Jordan Niethe
2020-04-08 18:21 ` Segher Boessenkool
2020-04-09 4:48 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 06/21] powerpc: Use an accessor for instructions Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 07/21] powerpc: Use a function for byte swapping instructions Jordan Niethe
2020-04-07 7:42 ` Balamuruhan S [this message]
2020-04-06 8:09 ` [PATCH v5 08/21] powerpc: Introduce functions for instruction equality Jordan Niethe
2020-04-07 7:37 ` Balamuruhan S
2020-04-06 8:09 ` [PATCH v5 09/21] powerpc: Use a datatype for instructions Jordan Niethe
2020-04-06 10:34 ` kbuild test robot
2020-04-06 10:35 ` kbuild test robot
2020-04-07 10:30 ` Balamuruhan S
2020-04-08 2:11 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 10/21] powerpc: Use a function for reading instructions Jordan Niethe
2020-04-07 10:42 ` Balamuruhan S
2020-04-06 8:09 ` [PATCH v5 11/21] powerpc: Define and use __get_user_instr{, inatomic}() Jordan Niethe
2020-04-07 10:48 ` Balamuruhan S
2020-04-08 2:13 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 12/21] powerpc: Introduce a function for reporting instruction length Jordan Niethe
2020-04-07 11:14 ` Balamuruhan S
2020-04-08 2:14 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 13/21] powerpc/xmon: Use a function for reading instructions Jordan Niethe
2020-04-07 11:30 ` Balamuruhan S
2020-04-08 2:18 ` Jordan Niethe
2020-04-09 5:04 ` Balamuruhan S
2020-04-09 5:14 ` Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 14/21] powerpc/xmon: Move insertion of breakpoint for xol'ing Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 15/21] powerpc: Make test_translate_branch() independent of instruction length Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 16/21] powerpc: Enable Prefixed Instructions Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 17/21] powerpc: Define new SRR1 bits for a future ISA version Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 18/21] powerpc64: Add prefixed instructions to instruction data type Jordan Niethe
2020-04-06 9:52 ` Alistair Popple
2020-04-06 10:25 ` Christophe Leroy
2020-04-06 11:13 ` Jordan Niethe
2020-04-08 18:11 ` Segher Boessenkool
2020-04-08 18:43 ` Christophe Leroy
2020-04-06 10:42 ` Jordan Niethe
2020-04-07 1:39 ` Alistair Popple
2020-04-06 11:04 ` kbuild test robot
2020-04-13 12:04 ` Balamuruhan S
2020-04-15 4:40 ` Jordan Niethe
2020-04-15 8:14 ` Balamuruhan S
2020-04-06 8:09 ` [PATCH v5 19/21] powerpc: Support prefixed instructions in alignment handler Jordan Niethe
2020-04-06 8:09 ` [PATCH v5 20/21] powerpc sstep: Add support for prefixed load/stores Jordan Niethe
2020-04-06 11:29 ` kbuild test robot
2020-04-06 8:09 ` [PATCH v5 21/21] powerpc sstep: Add support for prefixed fixed-point arithmetic Jordan Niethe
2020-04-09 6:39 ` [PATCH v5 00/21] Initial Prefixed Instruction support Christophe Leroy
2020-04-09 7:28 ` Jordan Niethe
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