- 23 1月, 2014 5 次提交
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由 Deng-Cheng Zhu 提交于
This patch adds RTLX API support for platforms having a CMP. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: NQais Yousef <Qais.Yousef@imgtec.com> Patchwork: http://patchwork.linux-mips.org/patch/6095/Reviewed-by: NJohn Crispin <blogic@openwrt.org>
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由 Deng-Cheng Zhu 提交于
Split the RTLX functionality in preparation for adding support for CMP platforms. Common functions remain in the original file and a new file contains code specific to platforms that do not have a CMP. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: NQais Yousef <Qais.Yousef@imgtec.com> Patchwork: http://patchwork.linux-mips.org/patch/6093/Reviewed-by: NJohn Crispin <blogic@openwrt.org>
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由 Deng-Cheng Zhu 提交于
This patch adds VPE loader support for platforms having a CMP. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: NQais Yousef <Qais.Yousef@imgtec.com> Signed-off-by: NJohn Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6092/
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由 Deng-Cheng Zhu 提交于
Split the VPE functionality in preparation for adding support for CMP platforms. Common functions remain in the original file and a new file contains code specific to platforms that do not have a CMP present. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com> Reviewed-by: NQais Yousef <Qais.Yousef@imgtec.com> Signed-off-by: NJohn Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6094/
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由 Steven J. Hill 提交于
Add a new mips/segments debugfs file to print the 6 segmentation control registers for supported cores. A sample from a proAptiv core is given below: Signed-off-by: NJohn Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/6137/ Segment Virtual Size Access Mode Physical Caching EU ------- ------- ---- ----------- -------- ------- -- 0 e0000000 512M MK UND U 0 1 c0000000 512M MSK UND U 0 2 a0000000 512M UK 000 2 0 3 80000000 512M UK 000 3 0 4 40000000 1G MUSK UND U 1 5 00000000 1G MUSK UND U 1 Reviewed-by: NJames Hogan <james.hogan@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com> Signed-off-by: NMarkos Chandras <markos.chandras@imgtec.com>
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- 30 10月, 2013 3 次提交
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由 Ralf Baechle 提交于
Nobody seems to care about this platform anymore and my attempts to find somebody willing to provide some tlc for PowerTV have failed so far. So let's nuke the bloody thing. Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/5910/
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由 Ralf Baechle 提交于
The generic version is wrong for MIPS. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Yoichi Yuasa 提交于
Signed-off-by: NYoichi Yuasa <yuasa@linux-mips.org> Cc: linux-mips <linux-mips@linux-mips.org> Patchwork: https://patchwork.linux-mips.org/patch/947/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 22 5月, 2013 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 09 5月, 2013 2 次提交
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由 Raghu Gandham 提交于
Add new clockevent driver that uses the counter present on the MIPS Global Interrupt Controller. Signed-off-by: NRaghu Gandham <Raghu.Gandham@imgtec.com> Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com>
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由 Steven J. Hill 提交于
Reorganize some of the GIC clocksource driver code. Below is a list of the various changes. * No longer select CSRC_GIC by default for Malta platform. * Limit choice for either the GIC or R4K clocksource, not both. * Change location in Makefile. * Created new 'gic_read_count' function in common 'irq-gic.c' file. * Change 'git_hpt_read' function in 'csrc-gic.c' to use new function. * Surround GIC specific code in Malta platform code with #ifdef's. * Only initialize the GIC clocksource if it was selected. Original code called it unconditionally if a GIC was found. Signed-off-by: NSteven J. Hill <Steven.Hill@imgtec.com>
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- 08 5月, 2013 1 次提交
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由 John Crispin 提交于
Previously this functionality was only available to users of the mips_machine api. Moving the code to prom.c allows us to also add a OF wrapper. Signed-off-by: NJohn Crispin <blogic@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/5164/
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- 10 4月, 2013 1 次提交
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由 Viresh Kumar 提交于
This patch moves cpufreq driver of MIPS architecture to drivers/cpufreq. Signed-off-by: NViresh Kumar <viresh.kumar@linaro.org> Acked-by: NJohn Crispin <blogic@openwrt.org> Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
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- 20 3月, 2013 1 次提交
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由 Florian Fainelli 提交于
Commit 32a7ede6 (MIPS: dsp: Add assembler support for DSP ASEs) has enabled the use of DSP ASE specific instructions such as rddsp and wrdsp under the idea that all code path that will make use of these two instructions are properly checking for cpu_has_dsp to ensure that the particular CPU we are running on *actually* supports DSP ASE. This commit actually causes the following oops on QEMU Malta emulating a MIPS 24Kc without the DSP ASE implemented: [ 7.960000] Reserved instruction in kernel [ 7.960000] Cpu 0 [ 7.960000] $ 0 : 00000000 00000000 00000014 00000005 [ 7.960000] $ 4 : 8fc2de48 00000001 00000000 8f59ddb0 [ 7.960000] $ 8 : 8f5ceec4 00000018 00000c00 00800000 [ 7.960000] $12 : 00000100 00000200 00000000 00457b84 [ 7.960000] $16 : 00000000 8fc2ba78 8f4ec980 00000001 [ 7.960000] $20 : 80418f90 00000000 00000000 000002dd [ 7.960000] $24 : 0000009c 7730d7b8 [ 7.960000] $28 : 8f59c000 8f59dd38 00000001 80104248 [ 7.960000] Hi : 0000001d [ 7.960000] Lo : 0000000b [ 7.960000] epc : 801041ec thread_saved_pc+0x2c/0x38 [ 7.960000] Not tainted [ 7.960000] ra : 80104248 get_wchan+0x48/0xac [ 7.960000] Status: 1000b703 KERNEL EXL IE [ 7.960000] Cause : 10800028 [ 7.960000] PrId : 00019300 (MIPS 24Kc) [ 7.960000] Modules linked in: [ 7.960000] Process killall (pid: 1574, threadinfo=8f59c000, task=8fd14558, tls=773aa440) [ 7.960000] Stack : 8fc2ba78 8012b008 0000000c 0000001d 00000000 00000000 8f58a380 8f58a380 8fc2ba78 80202668 8f59de78 8f468600 8f59de28 801b2a3c 8f59df00 8f98ba20 74696e69 8f468600 8f59de28 801b7308 0081c007 00000000 00000000 00000000 00000000 00000000 00000000 00000000 8fc2bbb4 00000001 0000001d 0000000b 77f038cc 7fe80648 ffffffff ffffffff 00000000 00000001 0016e000 00000000 ... [ 7.960000] Call Trace: [ 7.960000] [<801041ec>] thread_saved_pc+0x2c/0x38 [ 7.960000] [<80104248>] get_wchan+0x48/0xac The disassembly of thread_saved_pc points to the following: 000006d0 <thread_saved_pc>: 6d0: 8c820208 lw v0,520(a0) 6d4: 3c030000 lui v1,0x0 6d8: 24630000 addiu v1,v1,0 6dc: 10430008 beq v0,v1,700 <thread_saved_pc+0x30> 6e0: 00000000 nop 6e4: 3c020000 lui v0,0x0 6e8: 8c43000c lw v1,12(v0) 6ec: 04620004 bltzl v1,700 <thread_saved_pc+0x30> 6f0: 00001021 move v0,zero 6f4: 8c840200 lw a0,512(a0) 6f8: 00031080 sll v0,v1,0x2 6fc: 7c44100a lwx v0,a0(v0) <------------ 700: 03e00008 jr ra 704: 00000000 nop If we specifically disable -mdsp/-mdspr2 for arch/mips/kernel/process.o, we get the following (non-crashing) assembly: 00000708 <thread_saved_pc>: 708: 8c820208 lw v0,520(a0) 70c: 3c030000 lui v1,0x0 710: 24630000 addiu v1,v1,0 714: 10430009 beq v0,v1,73c <thread_saved_pc+0x34> 718: 00000000 nop 71c: 3c020000 lui v0,0x0 720: 8c42000c lw v0,12(v0) 724: 04420005 bltzl v0,73c <thread_saved_pc+0x34> 728: 00001021 move v0,zero 72c: 8c830200 lw v1,512(a0) 730: 00021080 sll v0,v0,0x2 734: 00431021 addu v0,v0,v1 738: 8c420000 lw v0,0(v0) 73c: 03e00008 jr ra 740: 00000000 nop The specific line that leads a different assembly being produced is: unsigned long thread_saved_pc(struct task_struct *tsk) ... return ((unsigned long *)t->reg29)[schedule_mfi.pc_offset]; <--- The problem here is that the compiler was given the right to use DSP instructions with the -mdsp / -mdspr2 command-line switches and performed some optimization for us and used DSP ASE instructions where we are not checking that the running CPU actually supports DSP ASE. This patch fixes the issue by partially reverting commit 32a7ede6 for arch/mips/kernel/Makefile in order to remove the -mdsp / -mdspr2 compiler command-line switches such that we are now guaranteed that the compiler will not optimize using DSP ASE reserved instructions. We also need to fixup the rddsp/wrdsp and m{t,h}{hi,lo}{0,1,2,3} macros in arch/mips/include/asm/mipsregs.h to tell the assembler that we are going to explicitely use DSP ASE reserved instructions. The comment in arch/mips/kernel/Makefile is also updated to reflect that. Signed-off-by: NFlorian Fainelli <florian@openwrt.org> Acked-by: NSteven J. Hill <Steven.Hill@imgtec.com> Cc: linux-mips@linux-mips.org Cc: blogic@openwrt.org Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 17 2月, 2013 2 次提交
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由 Steven J. Hill 提交于
Add new clocksource that uses the counter present on the MIPS Global Interrupt Controller. Signed-off-by: NSteven J. Hill <sjhill@mips.com> Patchwork: http://patchwork.linux-mips.org/patch/4681/Signed-off-by: NJohn Crispin <blogic@openwrt.org>
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由 Steven J. Hill 提交于
Newer toolchains support the DSP and DSP Rev2 instructions. This patch performs a check for that support and adds compiler and assembler flags for only the files that need use those instructions. Signed-off-by: NSteven J. Hill <sjhill@mips.com> Acked-by: NFlorian Fainelli <florian@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/4752/Signed-off-by: NJohn Crispin <blogic@openwrt.org>
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- 01 2月, 2013 1 次提交
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由 Ralf Baechle 提交于
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: NRalf Baechle <ralf@linux-mips.org>
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- 14 12月, 2012 3 次提交
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由 Ralf Baechle 提交于
Nobody seems to be interested anymore and upstream also never had an ethernet driver. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Ralf Baechle 提交于
Manuel Lauss <manuel.lauss@gmail.com> writes: I introduced it as a fallback because early revisions of Alchemy hardware we shipped had a non-functional 32kHz timer and had to rely on the r4k timer instead. Previously the r4k timer was initialized regardless, but it's useless with the "wait" instruction. So long story short: I need either the on-chip 32kHz timer OR the r4k timer if the 32kHz one is unusable, but not both, and r4k timer is useless when au1k_idle is in use. The current in-kernel Alchemy boards all work with the 32kHz timer, so I'm not against removing R4K_LIB symbols. Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Steven J. Hill 提交于
Manuel Lauss <manuel.lauss@gmail.com> writes: I introduced it as a fallback because early revisions of Alchemy hardware we shipped had a non-functional 32kHz timer and had to rely on the r4k timer instead. Previously the r4k timer was initialized regardless, but it's useless with the "wait" instruction. So long story short: I need either the on-chip 32kHz timer OR the r4k timer if the 32kHz one is unusable, but not both, and r4k timer is useless when au1k_idle is in use. The current in-kernel Alchemy boards all work with the 32kHz timer, so I'm not against removing R4K_LIB symbols. Signed-off-by: NSteven J. Hill <sjhill@mips.com> Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 13 12月, 2012 1 次提交
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由 Ralf Baechle 提交于
[ralf@linux-mips.org: Original patch by Maxim Uvarov <muvarov@gmail.com> with plenty of further shining, polishing, debugging and testing by me.] Signed-off-by: NMaxim Uvarov <muvarov@gmail.com> Cc: linux-mips@linux-mips.org Cc: kexec@lists.infradead.org Cc: horms@verge.net.au Patchwork: https://patchwork.linux-mips.org/patch/1025/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 11 10月, 2012 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 03 10月, 2012 1 次提交
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由 Jean Delvare 提交于
The correct syntax for gcc -x is "gcc -x assembler", not "gcc -xassembler". Even though the latter happens to work, the former is what is documented in the manual page and thus what gcc wrappers such as icecream do expect. This isn't a cosmetic change. The missing space prevents icecream from recognizing compilation tasks it can't handle, leading to silent kernel miscompilations. Besides me, credits go to Michael Matz and Dirk Mueller for investigating the miscompilation issue and tracking it down to this incorrect -x parameter syntax. Signed-off-by: NJean Delvare <jdelvare@suse.de> Acked-by: NIngo Molnar <mingo@kernel.org> Cc: stable@vger.kernel.org Cc: Bernhard Walle <bernhard@bwalle.de> Cc: Michal Marek <mmarek@suse.cz> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: NMichal Marek <mmarek@suse.cz>
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- 28 9月, 2012 2 次提交
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由 David Howells 提交于
Use the mapping of Elf_[SPE]hdr, Elf_Addr, Elf_Sym, Elf_Dyn, Elf_Rel/Rela, ELF_R_TYPE() and ELF_R_SYM() to either the 32-bit version or the 64-bit version into asm-generic/module.h for all arches bar MIPS. Also, use the generic definition mod_arch_specific where possible. To this end, I've defined three new config bools: (*) HAVE_MOD_ARCH_SPECIFIC Arches define this if they don't want to use the empty generic mod_arch_specific struct. (*) MODULES_USE_ELF_RELA Arches define this if their modules can contain RELA records. This causes the Elf_Rela mapping to be emitted and allows apply_relocate_add() to be defined by the arch rather than have the core emit an error message. (*) MODULES_USE_ELF_REL Arches define this if their modules can contain REL records. This causes the Elf_Rel mapping to be emitted and allows apply_relocate() to be defined by the arch rather than have the core emit an error message. Note that it is possible to allow both REL and RELA records: m68k and mips are two arches that do this. With this, some arch asm/module.h files can be deleted entirely and replaced with a generic-y marker in the arch Kbuild file. Additionally, I have removed the bits from m32r and score that handle the unsupported type of relocation record as that's now handled centrally. Signed-off-by: NDavid Howells <dhowells@redhat.com> Acked-by: NSam Ravnborg <sam@ravnborg.org> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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由 Ralf Baechle 提交于
Fixes build failure introduced by "Make most arch asm/module.h files use asm-generic/module.h" by moving all the RELA processing code to a separate file to be used only for RELA processing on 64-bit kernels. CC arch/mips/kernel/module.o arch/mips/kernel/module.c:250:14: error: 'reloc_handlers_rela' defined but not used [-Werror=unused-variable] cc1: all warnings being treated as errors make[6]: *** [arch/mips/kernel/module.o] Error 1 Signed-off-by: NRalf Baechle <ralf@linux-mips.org> Signed-off-by: NRusty Russell <rusty@rustcorp.com.au>
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- 23 8月, 2012 1 次提交
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由 Florian Fainelli 提交于
R4K-style CPUs have this boolean defined by default. Allows us to remove some lines in arch/mips/kernel/Makefile. Signed-off-by: NFlorian Fainelli <florian@openwrt.org> Patchwork: http://patchwork.linux-mips.org/patch/3330/Signed-off-by: NJohn Crispin <blogic@openwrt.org>
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- 05 5月, 2012 1 次提交
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由 Thomas Gleixner 提交于
Same code. Use the generic version. The special Makefile treatment is pointless anyway as init_task.o contains only data which is handled by the linker script. So no point on being treated like head text. Make the linker script align the task on THREAD_SIZE and not on PAGE_SIZE, as PAGE_SIZE might be smaller than THREAD_SIZE. Signed-off-by: NThomas Gleixner <tglx@linutronix.de> Cc: Ralf Baechle <ralf@linux-mips.org> Link: http://lkml.kernel.org/r/20120503085034.941344764@linutronix.de
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- 08 12月, 2011 2 次提交
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由 Jayachandran C 提交于
- Add CPU_XLP and NLM_XLR_BOARD to arch/mips/Kconfig for Netlogic XLP boards - Update mips Makefiles to add XLP Signed-off-by: NJayachandran C <jayachandranc@netlogicmicro.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2968/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Kevin Cernekee 提交于
Initial commit of BMIPS SMP support code. Smoke-tested on a variety of BMIPS4350, BMIPS4380, and BMIPS5000 platforms. Signed-off-by: NKevin Cernekee <cernekee@gmail.com> Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2977/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 25 10月, 2011 1 次提交
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由 David Daney 提交于
The contents of arch/mips/kernel/perf_event.c and arch/mips/kernel/perf_event_mipsxx.c were divided in a seemingly ad hoc manner, with the first including the second. I moved all the hardware counter support code to perf_event_mipsxx.c and removed the gating #ifdefs to the Kconfig and Makefile. Now perf_event.c contains only the callchain support, everything else is in perf_event_mipsxx.c There are no code changes, only moving of functions from one file to the other, or removing empty unneeded functions. Signed-off-by: NDavid Daney <david.daney@cavium.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Dezhong Diao <dediao@cisco.com> Cc: Gabor Juhos <juhosg@openwrt.org> Cc: Deng-Cheng Zhu <dengcheng.zhu@gmail.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2791/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 19 5月, 2011 1 次提交
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由 Jayachandran C 提交于
Add NLM_XLR_BOARD, CPU_XLR and other config options Makefile updates, mostly based on r4k Signed-off-by: NJayachandran C <jayachandranc@netlogicmicro.com> To: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/2334/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 19 1月, 2011 2 次提交
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由 David Daney 提交于
In order not to be left behind, we add jump label support for MIPS. Tested on 64-bit big endian (Octeon), and 32-bit little endian (malta/qemu). Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@redhat.com> Patchwork: https://patchwork.linux-mips.org/patch/1923/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Gabor Juhos 提交于
This patch adds a generic solution to support multiple machines based on a given SoC within a single kernel image. It is implemented already for several other architectures but MIPS has no generic support for that yet. [Ralf: This competes with DT but DT is a much more complex solution and this code has been used by OpenWRT for a long time so for now DT is a bad reason to stop the merge but longer term this should be migrated to DT.] Signed-off-by: NGabor Juhos <juhosg@openwrt.org> Cc: linux-mips@linux-mips.org Cc: kaloz@openwrt.org Cc: Luis R. Rodriguez <lrodriguez@atheros.com> Cc: Cliff Holden <Cliff.Holden@Atheros.com> Patchwork: https://patchwork.linux-mips.org/patch/1814/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 30 10月, 2010 1 次提交
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由 Deng-Cheng Zhu 提交于
This patch provides the skeleton of the HW perf event support. To enable this feature, we can not choose the SMTC kernel; Oprofile should be disabled; kernel performance events be selected. Then we can enable it in Kernel type menu. Oprofile for MIPS platforms initializes irq at arch init time. Currently we do not change this logic to allow PMU reservation. If a platform has EIC, we can use the irq base and perf counter irq offset defines for the interrupt controller in specific init_hw_perf_events(). Based on this skeleton patch, the 3 different kinds of MIPS PMU, namely, mipsxx/loongson2/rm9000, can be supported by adding corresponding lower level C files at the bottom. The suggested names of these files are perf_event_mipsxx.c/perf_event_loongson2.c/perf_event_rm9000.c. So, for example, we can do this by adding "#include perf_event_mipsxx.c" at the bottom of perf_event.c. In addition, PMUs with 64bit counters are also considered in this patch. Signed-off-by: NDeng-Cheng Zhu <dengcheng.zhu@gmail.com> To: linux-mips@linux-mips.org Cc: a.p.zijlstra@chello.nl Cc: paulus@samba.org Cc: mingo@elte.hu Cc: acme@redhat.com Cc: jamie.iles@picochip.com Cc: ddaney@caviumnetworks.com Cc: matt@console-pimps.org Patchwork: https://patchwork.linux-mips.org/patch/1688/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 22 10月, 2010 1 次提交
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由 Dezhong Diao 提交于
Add the ability to enable CONFIG_OF on the MIPS architecture. Signed-off-by: NDezhong Diao <dediao@cisco.com> [grant.likely@secretlab.ca: cleared out obsolete hooks, removed ARCH_HAS_DEVTREE_MEM, remove __init tags from header file, removed debugfs support hunk] [ddaney@linux-mips.org: backed out over aggressive trimming of hooks] Acked-by: NRalf Baechle <ralf@linux-mips.org> Tested-by: NDavid Daney <ddaney@caviumnetworks.com> Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
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- 05 8月, 2010 2 次提交
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由 David Daney 提交于
This patch is based on previous work by Sony and Himanshu Chauhan. I have done some cleanup and implemented JProbes and KRETPROBES. The KRETPROBES part is pretty much copied verbatim from powerpc. A possible future enhance might be to factor out the common code. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> Cc: Himanshu Chauhan <hschauhan@nulltrace.org> To: linux-mips@linux-mips.org To: ananth@in.ibm.com, To: anil.s.keshavamurthy@intel.com To: davem@davemloft.net To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1525/ Patchwork: https://patchwork.linux-mips.org/patch/1530/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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由 Sam Ravnborg 提交于
Adding subdirs-ccflags-y := -Werror to arch/mips/Kbuild let us in one go cover all files with -Werror. In addition this allows us to remove the individual -Werror definition in various Makefile. Adding the definition to Kbuild as a recursive option help us not to forget to do so. With this change we now compile arch/mips/kernel/cpufreq with -Werror One drawback: When specifying a subdirectory covered by the Kbuild file like this: make arch/mips/kernel/ then kbuild fails to pick up the -Werror definition. Signed-off-by: NSam Ravnborg <sam@ravnborg.org> To: linux-mips <linux-mips@linux-mips.org> To: Wu Zhangjin <wuzhangjin@gmail.com> Patchwork: https://patchwork.linux-mips.org/patch/1301/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 13 4月, 2010 1 次提交
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由 David Daney 提交于
This is a preliminary patch to add a vdso to all user processes. Still missing are ELF headers and .eh_frame information. But it is enough to allow us to move signal trampolines off of the stack. Note that emulation of branch delay slots in the FPU emulator still requires the stack. We allocate a single page (the vdso) and write all possible signal trampolines into it. The stack is moved down by one page and the vdso is mapped into this space. Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/975/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 27 2月, 2010 1 次提交
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由 David Daney 提交于
This is just a test program for raw_spinlocks. The main reason I wrote it is to validate my spinlock changes that I sent in a previous patch. To use it enable CONFIG_DEBUG_FS and CONFIG_SPINLOCK_TEST then at run time do: # mount -t debugfs none /sys/kernel/debug/ # cat /sys/kernel/debug/mips/spin_single # cat /sys/kernel/debug/mips/spin_multi On my 600MHz octeon cn5860 (16 CPUs) I get spin_single spin_multi base 106885 247941 spinlock_patch 75194 219465 This shows that for uncontended locks the spinlock patch gives 41% improvement and for contended locks 12% improvement (1/time). Signed-off-by: NDavid Daney <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org Patchwork: http://patchwork.linux-mips.org/patch/969/Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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- 17 12月, 2009 1 次提交
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由 Ralf Baechle 提交于
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>
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