Rdhwr
WebRDHWR on the CP0 count register always returning a constant (incorrect) value. A fix for this has been submitted, and the workaround can be removed after the fix has been in stable releases for a reasonable amount of time. A simple performance test which calls gettimeofday() 1000 times in a WebMessage ID: 4f856a5ea2c039c6639df875d11b5bff1bf7ecd2.1567326213.git.noring@nocrew.org …
Rdhwr
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WebAug 27, 2024 · Without workarounds the system may hang unexpectedly. @@ -1421,7 +1421,7 @@ config CPU_LOONGSON3_WORKAROUNDS config CPU_LOONGSON2E bool "Loongson 2E" depends on SYS_HAS_CPU_LOONGSON2E - select CPU_LOONGSON2 + select CPU_LOONGSON2EF help The Loongson 2E processor implements the MIPS III … http://blog.schmorp.de/2015-07-01-emulating-linux-mips-in-perl-3.html
WebFor release 2 of the MISP32 / MIPS64 architecture there is a new instruction, rdhwr which an application - so the OS permits it - can use to read c0_count. Now there are two problems with that approach in your case: o SB1 implements release 0.95 of the MIPS64 architecture, SB1A release 1. Iow these cores don't have rdhwr. WebOur experts explore topics ranging from maintaining building assets, to local energy code changes, facade engineering and more. RDH Building Science invites you to explore …
Web+ for (i = 0, prev = rdhwr_count(); i < 100; i++) {+ curr = rdhwr_count(); + + if (curr != prev) + return true; + + prev = curr; + } + + pr_warn("Not using R4K clocksource in VDSO due to … WebOct 10, 2024 · In this patch, we use rdhwr to get synci_step. If synci_step is zero, it means that the hardware will maintain the coherence. We need to do nothing. Then for r6+, synci is required to keep icache global. So we can use synci to flush icache. The ISA documents ask a sync and a jr.hb after synci.. For pre-r6, we can use cacheflush libc function, which is …
Web[PATCH v1 3/3] clocksource: Loongson constant timer support Loongson constant timer is found in Loongson-3A4000 processor. It has a counter which is globally accessiable via rdhwr instruction, also each core has a clock event generator connected to this clock source sharing interrupt with MIPS cont & comapre cevt. From: Dian zheng
WebJul 1, 2015 · # 0x7c03e83b rdhwr $3, $29 ($29=tls)- emulated by kernel normally, for thread support. That one was a bit of a puzzle - this instruction is understood and generated by binutils, but it doesn't actually exist in MIPS. Basically, this loads the thread local storage area pointer into a register, and when the CPU sees it, it generates an illegal ... philosopher\\u0027s mfWebOct 27, 2024 · [mips][microMIPS] Implement PAUSE, RDHWR, RDPGPR, SDBBP, SSNOP, SYNC, SYNCI and WAIT instructions. Closed Public. Actions. Authored by hvarga on Sep 4 2015, 12:26 AM. Edit Revision; Update Diff; Download Raw Diff; Edit Related Revisions... Edit Parent Revisions; Edit Child Revisions; Edit Related Objects... Edit Commits; Subscribe. philosopher\u0027s miWebJun 2, 2010 · Linux source code (v6.2.5) - Bootlin Elixir Cross Referencer - Explore source code in your browser - Particularly useful for the Linux kernel and other low-level projects … philosopher\u0027s mkWebAbout Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ... tsh increasing with synthroidWebThe ability to read hardware registers from userland with the RDHWR instruction should depend upon the corresponding bit of the HWREna register being set, otherwise a reserved instruction exception should be generated. However KVM's current emulation ignores the guest's HWREna and always emulates RDHWR instructions even if the guest OS has ... philosopher\u0027s mjWebThe ability to read hardware registers from userland with the RDHWR instruction should depend upon the corresponding bit of the HWREna register being set, otherwise a … tsh increase with ageWebIt it was on delay slot, the emulation will be > > +; slower. > > Andreas has already commented on this, but the tense sounds wrong too. > Maybe it would be better to have something like: > > ; Putting rdhwr in a delay slot would make the kernel's emulation > ; of it much slower. > > right above the "can_delay" line. tsh in critical illness