kernel/linux.git/arch/mips/include/asm/mach-ip27, branch linux-4.4.y

MIPS: IP27: Update/restructure CPU overrides

2015-06-21T19:54:13+00:00

Inspired by Maciej's recent patch to update DEC cpu-feature-overrides.h, I updated IP27's as well to disable features known to not apply to the IP27 platform or the R10K-series of CPUs. Before: text data bss dec hex filename 8616648 463200 472240 9552088 91c0d8 vmlinux After: text data bss dec hex filename 8592256 471392 472240 9535888 918190 vmlinux I believe the increase in the size of the data section is for the same reasons as in the DEC patch. Signed-off-by: Joshua Kinard Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle

MIPS: DMA: Implement platform hook to perform post-DMA cache flushes.

2015-04-01T15:22:01+00:00

Signed-off-by: Ralf Baechle

MIPS: Remove unnecessary platform dma helper functions

2013-10-29T20:24:40+00:00

The semantics stay the same - on Cavium Octeon the functions were dead code (it overrides the MIPS DMA ops) - on other platforms they contained no code at all. Signed-off-by: Felix Fietkau Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5720/ Signed-off-by: Ralf Baechle

MIPS: Optimize current_cpu_type() for better code.

2013-09-17T16:50:53+00:00

o Move current_cpu_type() to a separate header file o #ifdefing on supported CPU types lets modern GCC know that certain code in callers may be discarded ideally turning current_cpu_type() into a function returning a constant. o Use current_cpu_type() rather than direct access to struct cpuinfo_mips. Signed-off-by: Ralf Baechle Cc: Steven J. Hill Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/5833/

MIPS: IP27: Fix build error with CONFIG_MAPPED_KERNEL

2013-06-21T16:07:00+00:00

Some of the TLB bit definitions in have become rather complex and are no longer usable from assembler resulting in an explosion like this: AS arch/mips/kernel/head.o arch/mips/kernel/head.S: Assembler messages: arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: Illegal operands `li $12,(((1<<((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1))|(1<<(((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1)+1))|(5<<(((((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1)+1)+1)+1)))>>6)' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: missing ')' arch/mips/kernel/head.S:147: Error: Illegal operands `li $12,(((1<<((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1))|(1<<(((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1)+1))|(1<<((((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1)+1)+1))|(5<<(((((cpu_has_rixi?(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1))))+1:(cpu_has_rixi?((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))+1:((((((cpu_has_rixi?(0):(0)+1)+1)+1)+1)))))+1)+1)+1)+1)))>>6)' make[2]: *** [arch/mips/kernel/head.o] Error 1 Since now MAPPED_KERNEL_SETUP_TLB is in platform-specific code it's safe to hardcode the TLB bits there. Signed-off-by: Ralf Baechle

MIPS: Move gas macro MAPPED_KERNEL_SETUP_TLB to IP27-specific code.

2013-06-21T16:07:00+00:00

It's IP27-specific and can only cause trouble in head.S. Signed-off-by: Ralf Baechle

MIPS: Whitespace cleanup.

2013-02-01T09:00:22+00:00

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

MIPS: PMC-Sierra Yosemite: Remove support.

2012-12-13T17:15:30+00:00

Nobody seems to be interested anymore and upstream also never had an ethernet driver. Signed-off-by: Ralf Baechle

MIPS: Hardwire detection of DSP ASE Rev 2 for systems, as required.

2012-10-11T09:10:43+00:00

Most supported systems currently hardwire cpu_has_dsp to 0, so we also can disable support for cpu_has_dsp2 resulting in a slightly smaller kernel. Signed-off-by: Ralf Baechle

sched/numa: Rewrite the CONFIG_NUMA sched domain support

2012-05-09T13:00:55+00:00

The current code groups up to 16 nodes in a level and then puts an ALLNODES domain spanning the entire tree on top of that. This doesn't reflect the numa topology and esp for the smaller not-fully-connected machines out there today this might make a difference. Therefore, build a proper numa topology based on node_distance(). Since there's no fixed numa layers anymore, the static SD_NODE_INIT and SD_ALLNODES_INIT aren't usable anymore, the new code tries to construct something similar and scales some values either on the number of cpus in the domain and/or the node_distance() ratio. Signed-off-by: Peter Zijlstra Cc: Anton Blanchard Cc: Benjamin Herrenschmidt Cc: Chris Metcalf Cc: David Howells Cc: "David S. Miller" Cc: Fenghua Yu Cc: "H. Peter Anvin" Cc: Ivan Kokshaysky Cc: linux-alpha@vger.kernel.org Cc: linux-ia64@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: linuxppc-dev@lists.ozlabs.org Cc: linux-sh@vger.kernel.org Cc: Matt Turner Cc: Paul Mackerras Cc: Paul Mundt Cc: Ralf Baechle Cc: Richard Henderson Cc: sparclinux@vger.kernel.org Cc: Tony Luck Cc: x86@kernel.org Cc: Dimitri Sivanich Cc: Greg Pearson Cc: KAMEZAWA Hiroyuki Cc: bob.picco@oracle.com Cc: chris.mason@oracle.com Cc: Linus Torvalds Cc: Andrew Morton Link: http://lkml.kernel.org/n/tip-r74n3n8hhuc2ynbrnp3vt954@git.kernel.org Signed-off-by: Ingo Molnar