linux-mips
[Top] [All Lists]

Re: [PATCH 2/6] MIPS: APRP: Add VPE loader support for CMP platforms.

To: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Subject: Re: [PATCH 2/6] MIPS: APRP: Add VPE loader support for CMP platforms.
From: David Daney <ddaney.cavm@gmail.com>
Date: Thu, 17 Oct 2013 15:11:52 -0700
Cc: "Steven J. Hill" <Steven.Hill@imgtec.com>, linux-mips@linux-mips.org, ralf@linux-mips.org
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; bh=2+ExaK+1byTcB064SKVtuxfmRVmc90PuX2hBk4UtC6s=; b=tvtLcrNovLZc6TvNeTeY9+JAUwPC6Flvcqm5ajqMeMB5EmkR2ChBlWXiNgH8iaz1/j xdVFGnzogGDuzF9PgAQNqYm25Ily876zflu5CkTkJdh1H/gi97ceso+5n3i5e6QGSL1u EEQCWYxbBzkK6kbG8otSgbYrkUrCNY+48LyBuGxaSFX3D/IyMja2w4wlTaiPTScKFsBL kN12oKJY4cEOuH8iptTPsRw7kh30qWS0Cy9VS4RUArW41XX9hbRwLVaFK0VovXk0Mw3v yF7xjE2ONakoehgFR1ZEkhz5obPSDonqx/M/Xh8A7T2y6P/f14ypaVitd/9KzNQW0kBy Ggvg==
In-reply-to: <52605E11.2060404@imgtec.com>
List-archive: <http://www.linux-mips.org/archives/linux-mips/>
List-help: <mailto:ecartis@linux-mips.org?Subject=help>
List-id: linux-mips <linux-mips.eddie.linux-mips.org>
List-owner: <mailto:ralf@linux-mips.org>
List-post: <mailto:linux-mips@linux-mips.org>
List-software: Ecartis version 1.0.0
List-subscribe: <mailto:ecartis@linux-mips.org?subject=subscribe%20linux-mips>
List-unsubscribe: <mailto:ecartis@linux-mips.org?subject=unsubscribe%20linux-mips>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <1381976070-8413-1-git-send-email-Steven.Hill@imgtec.com> <1381976070-8413-3-git-send-email-Steven.Hill@imgtec.com> <526020F6.80704@gmail.com> <52605E11.2060404@imgtec.com>
Sender: linux-mips-bounce@linux-mips.org
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130625 Thunderbird/17.0.7
On 10/17/2013 03:00 PM, Deng-Cheng Zhu wrote:
On 10/17/2013 10:40 AM, David Daney wrote:
On 10/16/2013 07:14 PM, Steven J. Hill wrote:
From: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>

This patch adds VPE loader support for platforms having a CMP.

Signed-off-by: Deng-Cheng Zhu <dengcheng.zhu@imgtec.com>
Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
Reviewed-by: Qais Yousef <Qais.Yousef@imgtec.com>
---
  arch/mips/kernel/Makefile  |    2 +-
  arch/mips/kernel/vpe-cmp.c |  184
++++++++++++++++++++++++++++++++++++++++++++
  arch/mips/kernel/vpe-mt.c  |    4 +
  3 files changed, 189 insertions(+), 1 deletion(-)
  create mode 100644 arch/mips/kernel/vpe-cmp.c

diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index 51f9117..912eb64 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -54,7 +54,7 @@ obj-$(CONFIG_MIPS_MT_SMP)    += smp-mt.o
  obj-$(CONFIG_MIPS_CMP)        += smp-cmp.o
  obj-$(CONFIG_CPU_MIPSR2)    += spram.o

-obj-$(CONFIG_MIPS_VPE_LOADER)    += vpe.o vpe-mt.o
+obj-$(CONFIG_MIPS_VPE_LOADER)    += vpe.o vpe-cmp.o vpe-mt.o
  obj-$(CONFIG_MIPS_VPE_APSP_API) += rtlx.o

  obj-$(CONFIG_I8259)        += i8259.o
diff --git a/arch/mips/kernel/vpe-cmp.c b/arch/mips/kernel/vpe-cmp.c
new file mode 100644
index 0000000..a5628ca
--- /dev/null
+++ b/arch/mips/kernel/vpe-cmp.c
@@ -0,0 +1,184 @@
+/*
+ * This file is subject to the terms and conditions of the GNU
General Public
+ * License.  See the file "COPYING" in the main directory of this
archive
+ * for more details.
+ *
+ * Copyright (C) 2004, 2005 MIPS Technologies, Inc.  All rights
reserved.
+ * Copyright (C) 2013 Imagination Technologies Ltd.
+ */
+#ifdef CONFIG_MIPS_CMP
+

Get rid of all these #ifdef.

Use Kconfig symbols in the makefile instead.



Right. Splitting stuff into -cmp/-mt files is an effort to remove such
kind of #ifdef. The example can be found in Makefile in the v4 of this
patch set: http://patchwork.linux-mips.org/patch/5059/



OK, that patch you point to seems a little better, but there are still ifdefs in the Makefile. You can create synthetic Kconfig variables so the makefile is cleaner, but I don't know if it is worth it in this case.

Why did we get this new patch that regresses?

David Daney


<Prev in Thread] Current Thread [Next in Thread>