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* MIPS: Delete __cpuinit/__CPUINIT usage from MIPS codePaul Gortmaker2013-07-141-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 3747069b25e419f6b51395f48127e9812abc3596 upstream. The __cpuinit type of throwaway sections might have made sense some time ago when RAM was more constrained, but now the savings do not offset the cost and complications. For example, the fix in commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time") is a good example of the nasty type of bugs that can be created with improper use of the various __init prefixes. After a discussion on LKML[1] it was decided that cpuinit should go the way of devinit and be phased out. Once all the users are gone, we can then finally remove the macros themselves from linux/init.h. Note that some harmless section mismatch warnings may result, since notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c) and are flagged as __cpuinit -- so if we remove the __cpuinit from the arch specific callers, we will also get section mismatch warnings. As an intermediate step, we intend to turn the linux/init.h cpuinit related content into no-ops as early as possible, since that will get rid of these warnings. In any case, they are temporary and harmless. Here, we remove all the MIPS __cpuinit from C code and __CPUINIT from asm files. MIPS is interesting in this respect, because there are also uasm users hiding behind their own renamed versions of the __cpuinit macros. [1] https://lkml.org/lkml/2013/5/20/589 [ralf@linux-mips.org: Folded in Paul's followup fix.] Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5494/ Patchwork: https://patchwork.linux-mips.org/patch/5495/ Patchwork: https://patchwork.linux-mips.org/patch/5509/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: BMIPS: support booting from physical CPU other than 0Florian Fainelli2013-07-011-6/+23
| | | | | | | | | | | | | | | | | | BMIPS43xx CPUs have two hardware threads, and on some SoCs such as 3368, the bootloader has configured the system to boot from TP1 instead of the more usual TP0. Create the physical to logical CPU mapping to cope with that, do not remap the software interrupts to be cross CPUs such that we do not have to do use the logical CPU mapping further down the code, and finally, reset the slave TP1 only if booted from TP0. Signed-off-by: Jonas Gorski <jogo@openwrt.org> Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Cc: cernekee@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/5553/ Patchwork: https://patchwork.linux-mips.org/patch/5556/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: BMIPS: delay irq enable to ->smp_finish()Yong Zhang2012-07-191-7/+7
| | | | | | | | | | | To prepare for smoothing set_cpu_[active|online]() mess up Signed-off-by: Yong Zhang <yong.zhang0@gmail.com> Cc: Sergei Shtylyov <sshtylyov@mvista.com> Cc: David Daney <david.daney@cavium.com> Acked-by: David Daney <david.daney@cavium.com> Patchwork: https://patchwork.linux-mips.org/patch/3846/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: BMIPS: Fix duplicate header inclusion.Danny Kukawka2012-07-191-1/+0
| | | | | | | | | | Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de> Cc: Danny Kukawka <dkukawka@suse.de> Cc: Kevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/3369/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* remove references to cpu_*_map in arch/Rusty Russell2012-03-291-1/+1
| | | | | | | | | | | | | | | | | | | | This has been obsolescent for a while; time for the final push. In adjacent context, replaced old cpus_* with cpumask_*. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> Acked-by: David S. Miller <davem@davemloft.net> (arch/sparc) Acked-by: Chris Metcalf <cmetcalf@tilera.com> (arch/tile) Cc: user-mode-linux-devel@lists.sourceforge.net Cc: Russell King <linux@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: Richard Kuo <rkuo@codeaurora.org> Cc: linux-hexagon@vger.kernel.org Cc: Ralf Baechle <ralf@linux-mips.org> Cc: linux-mips@linux-mips.org Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Helge Deller <deller@gmx.de> Cc: sparclinux@vger.kernel.org
* Disintegrate asm/system.h for MIPSDavid Howells2012-03-281-1/+0
| | | | | | | | Disintegrate asm/system.h for MIPS. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Ralf Baechle <ralf@linux-mips.org> cc: linux-mips@linux-mips.org
* MIPS: BMIPS: smp-bmips.c does not need to include version.hJesper Juhl2012-02-201-1/+0
| | | | | | | | | | | | | | As 'make versioncheck' nicely points out, arch/mips/kernel/smp-bmips.c has no need to '#include <linux/version.h>'. This patch removes the unneeded include. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Cc: Kevin Cernekee <cernekee@gmail.com> Cc: trivial@kernel.org Patchwork: https://patchwork.linux-mips.org/patch/3269/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* MIPS: BMIPS: Add SMP support code for BMIPS43xx/BMIPS5000Kevin Cernekee2011-12-071-0/+458
Initial commit of BMIPS SMP support code. Smoke-tested on a variety of BMIPS4350, BMIPS4380, and BMIPS5000 platforms. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2977/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>