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2013-07-30MIPS: BMIPS: fix slave CPU booting when physical CPU is not 0Florian Fainelli
The current BMIPS SMP code assumes that the slave CPU is physical and logical CPU 1, but on some systems such as BCM3368, the slave CPU is physical CPU0. Fix the code to read the physical CPU (thread ID) we are running this code on, and adjust the relocation vector address based on it. This allows bringing up the second CPU on BCM3368 for instance. Signed-off-by: Florian Fainelli <florian@openwrt.org> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Cc: jogo@openwrt.org Cc: blogic@openwrt.org Patchwork: https://patchwork.linux-mips.org/patch/5621/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-07-14MIPS: Delete __cpuinit/__CPUINIT usage from MIPS codePaul Gortmaker
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>
2013-02-01MIPS: Whitespace cleanup.Ralf Baechle
Having received another series of whitespace patches I decided to do this once and for all rather than dealing with this kind of patches trickling in forever. Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2011-12-07MIPS: BMIPS: Add SMP support code for BMIPS43xx/BMIPS5000Kevin Cernekee
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>