From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] Hacks to allow booting ARM SMP kernel on UP ARMv7
Date: Mon, 23 Aug 2010 17:59:17 +0100 [thread overview]
Message-ID: <000601cb42e4$85c7ed80$9157c880$@deacon@arm.com> (raw)
In-Reply-To: <20100817104414.19061.38999.stgit@baageli.muru.com>
Hi Tony,
> Hi all,
>
> Here are some experimental patches to allow booting ARMv7 SMP
> kernel on UP to some extent. Posting these early in case it is
> of any help as I know at least Bryan Wu is working on similar
> issues.
>
> The patches are very much work in progress, and does not quite
> boot to init yet so there's all kinds of things to fix. But at
> least these patches allow booting to the point where the fixing
> issues might be a bit easier.. Currently it boots to the point
> where there are tons of "WARNING: at mm/percpu-vm.c:320 pcpu_alloc"
> prints.
I've got some similar hacks for the RealView boards which I've used
to build a Kernel that can boot on the PB-A8 and PBX-A9. Whilst this
is the wrong way of going about solving the problem [Russell's code
patching is a lot neater and more scaleable] you might be interested
in looking at the code anyway:
http://www.linux-arm.org/git?p=linux-2.6-wd.git;a=shortlog;h=refs/heads/smp-up-hacks
Only v7 cores are supported and TEX remapping is used to avoid having
to worry about setting the shared attribute at runtime. Yuck!
Will
next prev parent reply other threads:[~2010-08-23 16:59 UTC|newest]
Thread overview: 230+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-17 10:53 [PATCH 0/4] Hacks to allow booting ARM SMP kernel on UP ARMv7 Tony Lindgren
2010-08-17 10:53 ` Tony Lindgren
2010-08-17 10:53 ` [PATCH 1/4] ARM: Add SMP_ON_UP Kconfig option for booting SMP kernel on UP Tony Lindgren
2010-08-17 10:53 ` Tony Lindgren
2010-08-17 10:53 ` [PATCH 2/4] ARM: Allow optional UP processor functions for SMP kernels Tony Lindgren
2010-08-17 10:53 ` Tony Lindgren
2010-08-17 11:08 ` Russell King - ARM Linux
2010-08-17 11:08 ` Russell King - ARM Linux
2010-08-17 11:20 ` Tony Lindgren
2010-08-17 11:20 ` Tony Lindgren
2010-08-17 10:53 ` [PATCH 3/4] ARM: Set separate proc-v7 functions for SMP Tony Lindgren
2010-08-17 10:53 ` Tony Lindgren
2010-08-17 10:53 ` [PATCH 4/4] omap: Fix SMP on UP interrupt handling for multi-omap Tony Lindgren
2010-08-17 10:53 ` Tony Lindgren
2010-08-17 11:07 ` srinidhi
2010-08-17 11:07 ` srinidhi
2010-08-17 11:30 ` Tony Lindgren
2010-08-17 11:30 ` Tony Lindgren
2010-08-17 12:14 ` srinidhi
2010-08-17 12:14 ` srinidhi
2010-08-17 14:14 ` Tony Lindgren
2010-08-17 14:14 ` Tony Lindgren
2010-08-17 15:07 ` Shilimkar, Santosh
2010-08-17 15:07 ` Shilimkar, Santosh
2010-09-02 16:27 ` Tony Lindgren
2010-09-02 16:27 ` Tony Lindgren
2010-08-17 13:52 ` [PATCH 0/4] Hacks to allow booting ARM SMP kernel on UP ARMv7 Russell King - ARM Linux
2010-08-17 13:52 ` Russell King - ARM Linux
2010-08-17 14:12 ` Tony Lindgren
2010-08-17 14:12 ` Tony Lindgren
2010-08-17 15:40 ` Russell King - ARM Linux
2010-08-17 15:40 ` Russell King - ARM Linux
2010-08-19 7:38 ` Tony Lindgren
2010-08-19 7:38 ` Tony Lindgren
2010-08-19 9:38 ` Bryan Wu
2010-08-19 9:38 ` Bryan Wu
2010-08-19 9:57 ` Tony Lindgren
2010-08-19 9:57 ` Tony Lindgren
2010-08-19 10:20 ` Russell King - ARM Linux
2010-08-19 10:20 ` Russell King - ARM Linux
2010-08-20 12:06 ` Tony Lindgren
2010-08-20 12:06 ` Tony Lindgren
2010-08-30 22:55 ` Tony Lindgren
2010-08-30 22:55 ` Tony Lindgren
2010-09-02 13:36 ` Russell King - ARM Linux
2010-09-02 13:36 ` Russell King - ARM Linux
2010-09-02 16:16 ` Tony Lindgren
2010-09-02 16:16 ` Tony Lindgren
2010-09-02 16:18 ` [PATCH 1/6] ARM: Add inline function smp_on_up() for early init testing Tony Lindgren
2010-09-02 16:18 ` Tony Lindgren
2010-09-02 17:08 ` Russell King - ARM Linux
2010-09-02 17:08 ` Russell King - ARM Linux
2010-09-02 17:15 ` [PATCH 0/6] " Tony Lindgren
2010-09-02 17:15 ` Tony Lindgren
2010-09-02 17:42 ` [PATCH 1/6] " Tony Lindgren
2010-09-02 17:42 ` Tony Lindgren
2010-09-02 19:26 ` [PATCH 1/6] ARM: Add inline function smp_cpu() " Tony Lindgren
2010-09-02 19:26 ` Tony Lindgren
2010-09-03 0:08 ` Tony Lindgren
2010-09-03 0:08 ` Tony Lindgren
2010-09-03 2:22 ` Tony Lindgren
2010-09-03 2:22 ` Tony Lindgren
2010-09-03 8:58 ` Will Deacon
2010-09-03 9:02 ` Russell King - ARM Linux
2010-09-03 9:02 ` Russell King - ARM Linux
2010-09-03 9:07 ` Will Deacon
2010-09-03 9:07 ` Will Deacon
2010-09-03 8:58 ` Will Deacon
2010-09-03 12:12 ` Shilimkar, Santosh
2010-09-03 12:12 ` Shilimkar, Santosh
2010-09-03 12:23 ` Will Deacon
2010-09-03 12:23 ` Will Deacon
2010-09-03 12:31 ` Shilimkar, Santosh
2010-09-03 12:31 ` Shilimkar, Santosh
2010-09-05 1:53 ` Michał Nazarewicz
2010-09-05 1:53 ` Michał Nazarewicz
2010-09-03 12:09 ` [PATCH 1/6] ARM: Add inline function smp_on_up() " Shilimkar, Santosh
2010-09-03 12:09 ` Shilimkar, Santosh
2010-09-06 10:17 ` Bryan Wu
2010-09-06 10:17 ` Bryan Wu
2010-09-08 3:26 ` Tony Lindgren
2010-09-08 3:26 ` Tony Lindgren
2010-09-08 20:26 ` Tony Lindgren
2010-09-08 20:26 ` Tony Lindgren
2010-09-09 3:45 ` Bryan Wu
2010-09-09 3:45 ` Bryan Wu
2010-09-02 16:19 ` [PATCH 2/6] ARM: Use SMP and UP macros for cacheflush Tony Lindgren
2010-09-02 16:19 ` Tony Lindgren
2010-09-03 11:57 ` Shilimkar, Santosh
2010-09-03 11:57 ` Shilimkar, Santosh
2010-09-04 10:57 ` Russell King - ARM Linux
2010-09-04 10:57 ` Russell King - ARM Linux
2010-09-04 11:01 ` Shilimkar, Santosh
2010-09-04 11:01 ` Shilimkar, Santosh
2010-09-02 16:20 ` [PATCH 3/6] ARM: Fix v7wbi_tlb_flags for SMP on UP Tony Lindgren
2010-09-02 16:20 ` Tony Lindgren
2010-09-02 16:25 ` Russell King - ARM Linux
2010-09-02 16:25 ` Russell King - ARM Linux
2010-09-02 16:34 ` Tony Lindgren
2010-09-02 16:34 ` Tony Lindgren
2010-09-02 23:47 ` Tony Lindgren
2010-09-02 23:47 ` Tony Lindgren
2010-09-03 9:07 ` Russell King - ARM Linux
2010-09-03 9:07 ` Russell King - ARM Linux
2010-09-03 9:10 ` Russell King - ARM Linux
2010-09-03 9:10 ` Russell King - ARM Linux
2010-09-03 17:04 ` Tony Lindgren
2010-09-03 17:04 ` Tony Lindgren
2010-09-03 19:36 ` Russell King - ARM Linux
2010-09-03 19:36 ` Russell King - ARM Linux
2010-09-06 11:46 ` Catalin Marinas
2010-09-06 11:46 ` Catalin Marinas
2010-09-06 15:34 ` Russell King - ARM Linux
2010-09-06 15:34 ` Russell King - ARM Linux
2010-09-06 15:53 ` Catalin Marinas
2010-09-06 15:53 ` Catalin Marinas
2010-09-06 16:36 ` Russell King - ARM Linux
2010-09-06 16:36 ` Russell King - ARM Linux
2010-09-06 17:11 ` Catalin Marinas
2010-09-06 17:11 ` Catalin Marinas
2010-09-02 16:21 ` [PATCH 4/6] ARM: Do not call test_for_ipi or test_for_ltrirq on UP systems Tony Lindgren
2010-09-02 16:21 ` Tony Lindgren
2010-09-03 12:00 ` Shilimkar, Santosh
2010-09-03 12:00 ` Shilimkar, Santosh
2010-09-04 10:55 ` Russell King - ARM Linux
2010-09-04 10:55 ` Russell King - ARM Linux
2010-09-04 10:55 ` Russell King - ARM Linux
2010-09-04 10:55 ` Russell King - ARM Linux
2010-09-02 16:22 ` [PATCH 5/6] ARM: Don't set TLB ops broadcasting on UP ARMv7 Tony Lindgren
2010-09-02 16:22 ` Tony Lindgren
2010-09-02 16:57 ` Russell King - ARM Linux
2010-09-02 16:57 ` Russell King - ARM Linux
2010-09-02 17:21 ` Tony Lindgren
2010-09-02 17:21 ` Tony Lindgren
2010-09-02 18:01 ` Russell King - ARM Linux
2010-09-02 18:01 ` Russell King - ARM Linux
2010-09-02 18:13 ` Tony Lindgren
2010-09-02 18:13 ` Tony Lindgren
2010-09-02 18:18 ` Russell King - ARM Linux
2010-09-02 18:18 ` Russell King - ARM Linux
2010-09-02 16:23 ` [PATCH 6/6] omap: Fix SMP on UP interrupt handling for multi-omap Tony Lindgren
2010-09-02 16:23 ` Tony Lindgren
2010-09-02 19:30 ` Tony Lindgren
2010-09-02 19:30 ` Tony Lindgren
2010-09-03 12:15 ` Shilimkar, Santosh
2010-09-03 12:15 ` Shilimkar, Santosh
2010-09-08 3:30 ` Tony Lindgren
2010-09-08 3:30 ` Tony Lindgren
2010-09-03 12:06 ` Shilimkar, Santosh
2010-09-03 12:06 ` Shilimkar, Santosh
2010-09-04 11:05 ` Russell King - ARM Linux
2010-09-04 11:05 ` Russell King - ARM Linux
2010-09-04 11:22 ` Shilimkar, Santosh
2010-09-04 11:22 ` Shilimkar, Santosh
2010-09-03 4:20 ` [PATCH 0/4] Hacks to allow booting ARM SMP kernel on UP ARMv7 Bryan Wu
2010-09-03 4:20 ` Bryan Wu
2010-09-03 7:46 ` Russell King - ARM Linux
2010-09-03 7:46 ` Russell King - ARM Linux
2010-09-06 9:28 ` Catalin Marinas
2010-09-06 9:28 ` Catalin Marinas
2010-09-06 9:34 ` Russell King - ARM Linux
2010-09-06 9:34 ` Russell King - ARM Linux
2010-09-06 9:38 ` Catalin Marinas
2010-09-06 9:38 ` Catalin Marinas
2010-09-06 10:06 ` Russell King - ARM Linux
2010-09-06 10:06 ` Russell King - ARM Linux
2010-09-06 10:39 ` Catalin Marinas
2010-09-06 10:39 ` Catalin Marinas
2010-09-02 13:33 ` Russell King - ARM Linux
2010-09-02 13:33 ` Russell King - ARM Linux
2010-09-03 1:39 ` Tony Lindgren
2010-09-03 1:39 ` Tony Lindgren
2010-08-23 16:59 ` Will Deacon
2010-08-23 16:59 ` Will Deacon [this message]
2010-08-30 22:53 ` Tony Lindgren
2010-08-30 22:53 ` Tony Lindgren
2010-09-06 10:44 ` Russell King - ARM Linux
2010-09-06 10:44 ` Russell King - ARM Linux
2010-09-06 15:16 ` Catalin Marinas
2010-09-06 15:16 ` Catalin Marinas
2010-09-06 18:03 ` Tony Lindgren
2010-09-06 18:03 ` Tony Lindgren
2010-09-08 3:09 ` Tony Lindgren
2010-09-08 3:09 ` Tony Lindgren
2010-09-08 3:12 ` [PATCH] ARM: Check for is_smp for tlb_ops and cache_ops boardcast Tony Lindgren
2010-09-08 3:12 ` Tony Lindgren
2010-09-08 3:14 ` [PATCH] ARM: Don't try to send IPI on UP systems with CONFIG_SMP Tony Lindgren
2010-09-08 3:14 ` Tony Lindgren
2010-09-08 3:17 ` [PATCH] omap: Fix CONFIG_LOCAL_TIMERS initialization for multi-omap Tony Lindgren
2010-09-08 3:17 ` Tony Lindgren
2010-09-08 7:26 ` Shilimkar, Santosh
2010-09-08 7:26 ` Shilimkar, Santosh
2010-09-08 7:30 ` [PATCH] ARM: Don't try to send IPI on UP systems with CONFIG_SMP Shilimkar, Santosh
2010-09-08 7:30 ` Shilimkar, Santosh
2010-09-08 8:56 ` Russell King - ARM Linux
2010-09-08 8:56 ` Russell King - ARM Linux
2010-09-08 19:32 ` Tony Lindgren
2010-09-08 19:32 ` Tony Lindgren
2010-10-05 22:19 ` [PATCH] ARM: Check for is_smp for tlb_ops and cache_ops boardcast Tony Lindgren
2010-10-05 22:19 ` Tony Lindgren
2010-10-05 22:33 ` Russell King - ARM Linux
2010-10-05 22:33 ` Russell King - ARM Linux
2010-10-06 14:44 ` Tony Lindgren
2010-10-06 14:44 ` Tony Lindgren
2010-10-06 22:33 ` Russell King - ARM Linux
2010-10-06 22:33 ` Russell King - ARM Linux
2010-10-06 23:07 ` Tony Lindgren
2010-10-06 23:07 ` Tony Lindgren
2010-09-14 18:59 ` [PATCH] ARM: Handle __flush_icache_all for CONFIG_SMP_ON_UP Tony Lindgren
2010-09-14 18:59 ` Tony Lindgren
2010-09-14 19:03 ` [PATCH] omap: Update omap3_defconfig to work with SMP_ON_UP Tony Lindgren
2010-09-14 19:03 ` Tony Lindgren
2010-09-14 19:05 ` [PATCH] omap: Update omap3_defconfig for omap2 Tony Lindgren
2010-09-14 19:05 ` Tony Lindgren
2010-09-14 19:17 ` [PATCH] omap: Update omap3_defconfig to work with SMP_ON_UP Shilimkar, Santosh
2010-09-14 19:17 ` Shilimkar, Santosh
2010-09-14 20:27 ` Tony Lindgren
2010-09-14 20:27 ` Tony Lindgren
2010-09-15 6:11 ` Shilimkar, Santosh
2010-09-15 6:11 ` Shilimkar, Santosh
2010-09-15 16:11 ` Tony Lindgren
2010-09-15 16:11 ` Tony Lindgren
2010-09-15 18:25 ` Shilimkar, Santosh
2010-09-15 18:25 ` Shilimkar, Santosh
2010-09-15 23:15 ` Tony Lindgren
2010-09-15 23:15 ` Tony Lindgren
2010-09-16 17:05 ` [PATCH] ARM: Handle __flush_icache_all for CONFIG_SMP_ON_UP Catalin Marinas
2010-09-16 17:05 ` Catalin Marinas
2010-09-21 16:16 ` Tony Lindgren
2010-09-21 16:16 ` Tony Lindgren
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