| To: | "Edgar E. Iglesias" <edgar.iglesias@gmail.com> |
|---|---|
| Subject: | Re: [PATCH] MIPS: SMTC: Correct saving of CP0_STATUS |
| From: | David Daney <david.daney@cavium.com> |
| Date: | Mon, 29 Aug 2011 16:45:20 -0700 |
| Cc: | linux-mips@linux-mips.org, Ralf Baechle <ralf@linux-mips.org> |
| In-reply-to: | <20110829232029.GA15763@zapo> |
| References: | <20110829232029.GA15763@zapo> |
| Sender: | linux-mips-bounce@linux-mips.org |
| User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.15) Gecko/20101027 Fedora/3.0.10-1.fc12 Thunderbird/3.0.10 |
On 08/29/2011 04:20 PM, Edgar E. Iglesias wrote: Hi, Commit 362e696428590f7d0a5d0971a2d04b0372a761b8 reorders a bunch of insns to improve the flow of the pipeline but for MT_SMTC kernels, AFAICT, the saving of CP0_STATUS seems wrong. Indeed. Am I missing something? It does look like in the MIPS_MT_SMTC case we are clobbering the value in v1. If not here is a patch, tested with qemu. How about the attached completely untested one instead? David Daney
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