From: liuj97@gmail.com (Jiang Liu)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v1 1/7] arm64: introduce basic aarch64 instruction decoding helpers
Date: Wed, 25 Sep 2013 23:50:40 +0800 [thread overview]
Message-ID: <52430650.90300@gmail.com> (raw)
In-Reply-To: <5242DE0F.1080601@codeaurora.org>
On 09/25/2013 08:58 PM, Christopher Covington wrote:
> Hi Jiang,
>
> On 09/25/2013 06:44 AM, Jiang Liu wrote:
>
> [...]
>
>> diff --git a/arch/arm64/kernel/insn.c b/arch/arm64/kernel/insn.c
>
> [...]
>
>> +static int aarch64_insn_cls[] = {
>> + AARCH64_INSN_CLS_UNKNOWN, /* 0 0 X X */
>> + AARCH64_INSN_CLS_UNKNOWN, /* 0 0 X X */
>> + AARCH64_INSN_CLS_UNKNOWN, /* 0 0 X X */
>> + AARCH64_INSN_CLS_UNKNOWN, /* 0 0 X X */
>> + AARCH64_INSN_CLS_LDST, /* X 1 X 0 */
>> + AARCH64_INSN_CLS_DP_REG, /* X 1 0 1 */
>> + AARCH64_INSN_CLS_LDST, /* X 1 X 0 */
>> + AARCH64_INSN_CLS_DP_FPSIMD, /* 0 1 1 1 */
>> + AARCH64_INSN_CLS_DP_IMM, /* 1 0 0 X */
>> + AARCH64_INSN_CLS_DP_IMM, /* 1 0 0 X */
>> + AARCH64_INSN_CLS_BR_SYS, /* 1 0 1 X */
>> + AARCH64_INSN_CLS_BR_SYS, /* 1 0 1 X */
>> + AARCH64_INSN_CLS_LDST, /* X 1 X 0 */
>> + AARCH64_INSN_CLS_DP_REG, /* X 1 0 1 */
>> + AARCH64_INSN_CLS_LDST, /* X 1 X 0 */
>> + AARCH64_INSN_CLS_DP_FPSIMD, /* 1 1 1 1 */
>> +};
>
> As I read this, I was initially puzzled as to why there are duplicate entries
> in the list. Since the data structure doesn't really support don't-cares,
> perhaps it would be clearer to use 1's and 0's instead of X's.
Thanks for review, Chris!
I will try to improve the comments in next version.
>
> [...]
>
> Thanks,
> Christopher
>
next prev parent reply other threads:[~2013-09-25 15:50 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-25 10:44 [PATCH v1 0/7] Optimize jump label implementation on ARM64 Jiang Liu
2013-09-25 10:44 ` [PATCH v1 1/7] arm64: introduce basic aarch64 instruction decoding helpers Jiang Liu
2013-09-25 12:58 ` Christopher Covington
2013-09-25 15:50 ` Jiang Liu [this message]
2013-09-25 10:44 ` [PATCH v1 2/7] arm64: introduce interfaces to hotpatch kernel and module code Jiang Liu
2013-09-25 14:35 ` Steven Rostedt
2013-09-25 14:42 ` Sandeepa Prabhu
2013-09-25 15:16 ` Steven Rostedt
2013-09-26 2:47 ` Sandeepa Prabhu
2013-09-25 14:35 ` Sandeepa Prabhu
2013-09-25 15:54 ` Jiang Liu
2013-09-26 2:51 ` Sandeepa Prabhu
2013-09-27 15:41 ` Jiang Liu
2013-09-28 1:22 ` Sandeepa Prabhu
2013-09-25 10:44 ` [PATCH v1 3/7] arm64: move encode_insn_immediate() from module.c to insn.c Jiang Liu
2013-09-25 10:44 ` [PATCH v1 4/7] arm64: introduce aarch64_insn_gen_{nop|branch_imm}() helper functions Jiang Liu
2013-09-25 10:44 ` [PATCH v1 5/7] arm64, jump label: detect %c support for ARM64 Jiang Liu
2013-09-25 10:44 ` [PATCH v1 6/7] arm64, jump label: optimize jump label implementation Jiang Liu
2013-09-25 10:44 ` [PATCH v1 7/7] jump_label: use defined macros instead of hard-coding for better readability Jiang Liu
2013-09-25 14:53 ` Steven Rostedt
2013-09-25 15:47 ` Jiang Liu
2013-09-25 16:30 ` Steven Rostedt
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