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Mainline 5.3.x

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5.3.0-1119-ayufan released

ayufan: defconfig: enable DRM_PANFROST/DRM_LIMA

ROCKPro64 - Das erste Mal

Angeheftet Verschoben Hardware

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Ich kann heute die Fragen aller Fragen beantworten 🙂

Damit ist leider die Frage immer noch unbeantwortet ob WLan und PCIe zusammen nutzbar ist!! Es geht!!

Ich habe von MrFixit ein Testimage der RecalBox, benutzt das selbe Debian wie oben. Die Tage konnte man im IRC verfolgen, wie man dem Grundproblem näher kam und wohl einen Fix gebastelt hat, damit beides zusammen funktioniert. Mr.Fixit hat das in RecalBox eingebaut und ich durfte testen.

# ip a 1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue qlen 1 link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00 inet 127.0.0.1/8 scope host lo valid_lft forever preferred_lft forever inet6 ::1/128 scope host valid_lft forever preferred_lft forever 2: eth0: <NO-CARRIER,BROADCAST,MULTICAST,UP8000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether 62:03:b0:d6:dc:b3 brd ff:ff:ff:ff:ff:ff 3: wlan0: <BROADCAST,MULTICAST,UP,LOWER_UP8000> mtu 1500 qdisc pfifo_fast qlen 1000 link/ether ac:83:f3:e6:1f:b2 brd ff:ff:ff:ff:ff:ff inet 192.168.178.27/24 brd 192.168.178.255 scope global wlan0 valid_lft forever preferred_lft forever inet6 2a02:908:1262:4680:ae83:f3ff:fee6:1fb2/64 scope global dynamic valid_lft 7145sec preferred_lft 3545sec inet6 fe80::ae83:f3ff:fee6:1fb2/64 scope link valid_lft forever preferred_lft forever # ls /mnt bin etc media recalbox sd.img test2.img boot home mnt root selinux tmp crypthome lib opt run srv usr dev lost+found proc sbin sys var # fdisk BusyBox v1.27.2 (2019-02-01 22:43:19 EST) multi-call binary. Usage: fdisk [-ul] [-C CYLINDERS] [-H HEADS] [-S SECTORS] [-b SSZ] DISK Change partition table -u Start and End are in sectors (instead of cylinders) -l Show partition table for each DISK, then exit -b 2048 (for certain MO disks) use 2048-byte sectors -C CYLINDERS Set number of cylinders/heads/sectors -H HEADS Typically 255 -S SECTORS Typically 63 # fdisk -l Disk /dev/mmcblk0: 15 GB, 15931539456 bytes, 31116288 sectors 486192 cylinders, 4 heads, 16 sectors/track Units: cylinders of 64 * 512 = 32768 bytes Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type /dev/mmcblk0p1 * 2,10,9 10,50,40 32768 163839 131072 64.0M c Win95 FAT32 (LBA) Partition 1 does not end on cylinder boundary /dev/mmcblk0p2 * 16,81,2 277,102,17 262144 4456447 4194304 2048M 83 Linux Partition 2 does not end on cylinder boundary /dev/mmcblk0p3 277,102,18 1023,254,63 4456448 31115263 26658816 12.7G 83 Linux Partition 3 does not end on cylinder boundary Disk /dev/nvme0n1: 233 GB, 250059350016 bytes, 488397168 sectors 2543735 cylinders, 12 heads, 16 sectors/track Units: cylinders of 192 * 512 = 98304 bytes Device Boot StartCHS EndCHS StartLBA EndLBA Sectors Size Id Type /dev/nvme0n1p1 1,0,1 907,11,16 2048 488397167 488395120 232G 83 Linux #

Oben sieht man eine funktionierende WLan-Verbindung, das LAN-Kabel war entfernt. Unten sieht man die PCIe NVMe SSD, gemountet nach /mnt und Inhaltsausgabe.

Das sollte beweisen, das der Ansatz der Lösung funktioniert. Leider kann ich nicht sagen, das es zum jetzigen Zeitpunkt stabil läuft. Ich habe einfach so Reboots, kann den Fehler aktuell aber nicht fangen. Mal sehen ob ich noch was finde.

Aber, es ist ein Anfang!

ROCKPro64 - Samsung 970 NVMe M.2 500GB

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Niemand hat geantwortet

Der 3. ROCKPro64

ROCKPro64

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Nachdem ich jetzt mein NAS neu gemacht habe, schauen wir mal, was die Chinesen geliefert haben. Bestellt hatte ich

ROCKPro64 v2.1 2GB RAM Kühlkörper Netzteil 3A USB-Adapter für eMMC-Modul

Endlich habe ich mal an den USB-Adapter für das eMMC-Modul gedacht 🙂

0_1540029624802_IMG_20181020_115348_ergebnis.jpg

Was ist mir aufgefallen? Das Versionsdatum ist neu (siehe oben) Die PCIe NVMe Karte ist neu

Bei der PCIe NVMe Karte liegt eine Abstandshülse aus Messing und eine winzig kleine Schraube bei. Damit bekomme ich aber nicht die NVMe-SSD befestigt. Ich habe dann gemurkst 😉 Da sollte Pine64 unbedingt nachbessern!

So sieht das dann zusammengebaut aus.

0_1540029756582_IMG_20181020_115425_ergebnis.jpg

0_1540029767082_IMG_20181020_115438_ergebnis.jpg

Da ich ein paarmal gelesen hatte, das Leute Probleme mit dem PCIe NVMe Adapter hatten, direkt als erstes mal ein Test ob das reibungslos funktioniert.

Sys rock64@rockpro64:/mnt$ uname -a Linux rockpro64 4.4.132-1075-rockchip-ayufan-ga83beded8524 #1 SMP Thu Jul 26 08:22:22 UTC 2018 aarch64 aarch64 aarch64 GNU/Linux lspci rock64@rockpro64:/mnt$ sudo lspci -vvv [sudo] password for rock64: 00:00.0 PCI bridge: Rockchip Inc. RK3399 PCI Express Root Port Device 0100 (prog-if 00 [Normal decode]) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort+ <MAbort+ >SERR+ <PERR+ INTx- Latency: 0 Interrupt: pin A routed to IRQ 238 Bus: primary=00, secondary=01, subordinate=01, sec-latency=0 I/O behind bridge: 00000000-00000fff Memory behind bridge: fa000000-fa0fffff Prefetchable memory behind bridge: 00000000-000fffff Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR- BridgeCtl: Parity- SERR- NoISA- VGA- MAbort- >Reset- FastB2B- PriDiscTmr- SecDiscTmr- DiscTmrStat- DiscTmrSERREn- Capabilities: [80] Power Management version 3 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=0mA PME(D0+,D1+,D2-,D3hot+,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME+ Capabilities: [90] MSI: Enable+ Count=1/1 Maskable+ 64bit+ Address: 00000000fee30040 Data: 0000 Masking: 00000000 Pending: 00000000 Capabilities: [b0] MSI-X: Enable- Count=1 Masked- Vector table: BAR=0 offset=00000000 PBA: BAR=0 offset=00000008 Capabilities: [c0] Express (v2) Root Port (Slot+), MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0 ExtTag- RBE+ DevCtl: Report errors: Correctable+ Non-Fatal+ Fatal+ Unsupported+ RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr- TransPend- LnkCap: Port #0, Speed 5GT/s, Width x4, ASPM L1, Exit Latency L0s <256ns, L1 <8us ClockPM- Surprise- LLActRep- BwNot+ ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk- ExtSynch- ClockPM- AutWidDis- BWInt+ AutBWInt+ LnkSta: Speed 5GT/s, Width x4, TrErr- Train- SlotClk- DLActive- BWMgmt- ABWMgmt- SltCap: AttnBtn- PwrCtrl- MRL- AttnInd- PwrInd- HotPlug- Surprise- Slot #0, PowerLimit 0.000W; Interlock- NoCompl- SltCtl: Enable: AttnBtn- PwrFlt- MRL- PresDet- CmdCplt- HPIrq- LinkChg- Control: AttnInd Off, PwrInd Off, Power+ Interlock- SltSta: Status: AttnBtn- PowerFlt- MRL+ CmdCplt- PresDet- Interlock- Changed: MRL- PresDet- LinkState- RootCtl: ErrCorrectable- ErrNon-Fatal- ErrFatal- PMEIntEna+ CRSVisible- RootCap: CRSVisible- RootSta: PME ReqID 0000, PMEStatus- PMEPending- DevCap2: Completion Timeout: Range B, TimeoutDis+, LTR+, OBFF Via message ARIFwd+ DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled ARIFwd- LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [274 v1] Transaction Processing Hints Interrupt vector mode supported Device specific mode supported Steering table in TPH capability structure Kernel driver in use: pcieport 01:00.0 Non-Volatile memory controller: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961 (prog-if 02 [NVM Express]) Subsystem: Samsung Electronics Co Ltd NVMe SSD Controller SM961/PM961 Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx- Latency: 0 Interrupt: pin A routed to IRQ 237 Region 0: Memory at fa000000 (64-bit, non-prefetchable) [size=16K] Capabilities: [40] Power Management version 3 Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-) Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=0 PME- Capabilities: [50] MSI: Enable- Count=1/32 Maskable- 64bit+ Address: 0000000000000000 Data: 0000 Capabilities: [70] Express (v2) Endpoint, MSI 00 DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s unlimited, L1 unlimited ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset+ SlotPowerLimit 0.000W DevCtl: Report errors: Correctable- Non-Fatal- Fatal- Unsupported- RlxdOrd+ ExtTag- PhantFunc- AuxPwr- NoSnoop+ FLReset- MaxPayload 128 bytes, MaxReadReq 512 bytes DevSta: CorrErr- UncorrErr- FatalErr- UnsuppReq- AuxPwr+ TransPend- LnkCap: Port #0, Speed 8GT/s, Width x4, ASPM L1, Exit Latency L0s unlimited, L1 <64us ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp+ LnkCtl: ASPM L1 Enabled; RCB 64 bytes Disabled- CommClk- ExtSynch- ClockPM+ AutWidDis- BWInt- AutBWInt- LnkSta: Speed 5GT/s, Width x4, TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt- DevCap2: Completion Timeout: Range ABCD, TimeoutDis+, LTR+, OBFF Not Supported DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis-, LTR-, OBFF Disabled LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis- Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS- Compliance De-emphasis: -6dB LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete-, EqualizationPhase1- EqualizationPhase2-, EqualizationPhase3-, LinkEqualizationRequest- Capabilities: [b0] MSI-X: Enable+ Count=8 Masked- Vector table: BAR=0 offset=00003000 PBA: BAR=0 offset=00002000 Capabilities: [100 v2] Advanced Error Reporting UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UEMsk: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol- UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol- CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr- CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- NonFatalErr+ AERCap: First Error Pointer: 00, GenCap+ CGenEn- ChkCap+ ChkEn- Capabilities: [148 v1] Device Serial Number 00-00-00-00-00-00-00-00 Capabilities: [158 v1] Power Budgeting <?> Capabilities: [168 v1] #19 Capabilities: [188 v1] Latency Tolerance Reporting Max snoop latency: 0ns Max no snoop latency: 0ns Capabilities: [190 v1] L1 PM Substates L1SubCap: PCI-PM_L1.2+ PCI-PM_L1.1+ ASPM_L1.2+ ASPM_L1.1+ L1_PM_Substates+ PortCommonModeRestoreTime=10us PortTPowerOnTime=10us L1SubCtl1: PCI-PM_L1.2- PCI-PM_L1.1- ASPM_L1.2- ASPM_L1.1- T_CommonMode=0us LTR1.2_Threshold=0ns L1SubCtl2: T_PwrOn=10us Kernel driver in use: nvme

Da sieht alles gut aus. x4 alles Bestens!

iozone rock64@rockpro64:/mnt$ sudo iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 Iozone: Performance Test of File I/O Version $Revision: 3.429 $ Compiled for 64 bit mode. Build: linux Contributors:William Norcott, Don Capps, Isom Crawford, Kirby Collins Al Slater, Scott Rhine, Mike Wisner, Ken Goss Steve Landherr, Brad Smith, Mark Kelly, Dr. Alain CYR, Randy Dunlap, Mark Montague, Dan Million, Gavin Brebner, Jean-Marc Zucconi, Jeff Blomberg, Benny Halevy, Dave Boone, Erik Habbinga, Kris Strecker, Walter Wong, Joshua Root, Fabrice Bacchella, Zhenghua Xue, Qin Li, Darren Sawyer, Vangel Bojaxhi, Ben England, Vikentsi Lapa. Run began: Sat Oct 20 10:08:28 2018 Include fsync in write timing O_DIRECT feature enabled Auto Mode File size set to 102400 kB Record Size 4 kB Record Size 16 kB Record Size 512 kB Record Size 1024 kB Record Size 16384 kB Command line used: iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2 Output is in kBytes/sec Time Resolution = 0.000001 seconds. Processor cache size set to 1024 kBytes. Processor cache line size set to 32 bytes. File stride size set to 17 * record size. random random bkwd record stride kB reclen write rewrite read reread read write read rewrite read fwrite frewrite fread freread 102400 4 63896 108269 91858 95309 32845 73173 102400 16 123393 236653 273766 275807 118450 199130 102400 512 471775 570571 484612 496942 441345 575817 102400 1024 544229 642558 508895 511834 486506 647765 102400 16384 1044520 1100322 1069825 1092146 1089301 1086757 iozone test complete.

Das sieht nicht optimal aus, schau ich mir später an. Das hier soll nur ein kurzer Test sein ob das Board rennt 🙂

Nachdem ich mittlerweile zwei ROCKPro64 im "produktiven" Einsatz habe, war es immer sehr mühsam mal eben was zu testen. Man will die anderen ja nicht immer ausmachen, dran rumhantieren usw. Deswegen jetzt der dritte, der im Moment dann die Rolle des Testkandidaten einnimmt. Ab sofort kann ich wieder nach Lust und Laune, neue Images testen usw.

Recover Button

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Ich hab das mal ausprobiert.

Den Recover Button so lange drücken, bis folgendes erscheint.

In: serial@ff1a0000 Out: serial@ff1a0000 Err: serial@ff1a0000 Model: Pine64 RockPro64 rockchip_dnl_mode = 1 mode rockchip_dnl_mode = 2 mode rockchip_dnl_mode = 3 mode rockchip_dnl_mode = 4 mode entering maskrom mode...

RKFlashTool clonen

root@thinkpad:/home/frank/test# git clone https://github.com/rockchip-linux/rkflashtool Klone nach 'rkflashtool' ... remote: Counting objects: 663, done. remote: Total 663 (delta 0), reused 0 (delta 0), pack-reused 663 Empfange Objekte: 100% (663/663), 114.94 KiB | 0 bytes/s, Fertig. Löse Unterschiede auf: 100% (367/367), Fertig.

In das Verzeichnis wechseln

root@thinkpad:/home/frank/test# cd rkflashtool/

Inhalt

root@thinkpad:/home/frank/test/rkflashtool# ls doc Makefile rkcrc.h rkflashtool.h rkparametersblock examples README rkflashall rkmisc rkunpack.c fixversion.sh release.sh rkflashloader rkpad rkunsign flashuboot rkcrc.c rkflashtool.c rkparameters version.h

RKFlashtool bauen

root@thinkpad:/home/frank/test/rkflashtool# make gcc -O2 -W -Wall -I/usr/include/libusb-1.0 rkflashtool.c -o rkflashtool -lusb-1.0 gcc -O2 -W -Wall -I/usr/include/libusb-1.0 rkcrc.c -o rkcrc -lusb-1.0 gcc -O2 -W -Wall -I/usr/include/libusb-1.0 rkunpack.c -o rkunpack -lusb-1.0

Ich habe ein USB-A to USB-A Kabel vom USB-C Port des ROCKPro64 zu meinem Notebook hergestellt.

root@thinkpad:/home/frank/test/rkflashtool# sudo ./rkflashtool v rkflashtool: info: rkflashtool v5.2 rkflashtool: info: Detected RK3399... rkflashtool: info: interface claimed rkflashtool: info: MASK ROM MODE rkflashtool: info: chip version: -..-

Ok, Verbindung steht.

Eine Übersicht der Befehle

root@thinkpad:/home/frank/test/rkflashtool# sudo ./rkflashtool rkflashtool: info: rkflashtool v5.2 rkflashtool: fatal: usage: rkflashtool b [flag] reboot device rkflashtool l <file load DDR init (MASK ROM MODE) rkflashtool L <file load USB loader (MASK ROM MODE) rkflashtool v read chip version rkflashtool n read NAND flash info rkflashtool i offset nsectors >outfile read IDBlocks rkflashtool j offset nsectors <infile write IDBlocks rkflashtool m offset nbytes >outfile read SDRAM rkflashtool M offset nbytes <infile write SDRAM rkflashtool B krnl_addr parm_addr exec SDRAM rkflashtool r partname >outfile read flash partition rkflashtool w partname <infile write flash partition rkflashtool r offset nsectors >outfile read flash rkflashtool w offset nsectors <infile write flash rkflashtool p >file fetch parameters rkflashtool P <file write parameters rkflashtool e partname erase flash (fill with 0xff) rkflashtool e offset nsectors erase flash (fill with 0xff)

stretch-minimal-rockpro64

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Mal ein Test was der Speicher so kann.

rock64@rockpro64:~/tinymembench$ ./tinymembench tinymembench v0.4.9 (simple benchmark for memory throughput and latency) ========================================================================== == Memory bandwidth tests == == == == Note 1: 1MB = 1000000 bytes == == Note 2: Results for 'copy' tests show how many bytes can be == == copied per second (adding together read and writen == == bytes would have provided twice higher numbers) == == Note 3: 2-pass copy means that we are using a small temporary buffer == == to first fetch data into it, and only then write it to the == == destination (source -> L1 cache, L1 cache -> destination) == == Note 4: If sample standard deviation exceeds 0.1%, it is shown in == == brackets == ========================================================================== C copy backwards : 2812.7 MB/s C copy backwards (32 byte blocks) : 2811.9 MB/s C copy backwards (64 byte blocks) : 2632.8 MB/s C copy : 2667.2 MB/s C copy prefetched (32 bytes step) : 2633.5 MB/s C copy prefetched (64 bytes step) : 2640.8 MB/s C 2-pass copy : 2509.8 MB/s C 2-pass copy prefetched (32 bytes step) : 2431.6 MB/s C 2-pass copy prefetched (64 bytes step) : 2424.1 MB/s C fill : 4887.7 MB/s (0.5%) C fill (shuffle within 16 byte blocks) : 4883.0 MB/s C fill (shuffle within 32 byte blocks) : 4889.3 MB/s C fill (shuffle within 64 byte blocks) : 4889.2 MB/s --- standard memcpy : 2807.3 MB/s standard memset : 4890.4 MB/s (0.3%) --- NEON LDP/STP copy : 2803.7 MB/s NEON LDP/STP copy pldl2strm (32 bytes step) : 2802.1 MB/s NEON LDP/STP copy pldl2strm (64 bytes step) : 2800.7 MB/s NEON LDP/STP copy pldl1keep (32 bytes step) : 2745.5 MB/s NEON LDP/STP copy pldl1keep (64 bytes step) : 2745.8 MB/s NEON LD1/ST1 copy : 2801.9 MB/s NEON STP fill : 4888.9 MB/s (0.3%) NEON STNP fill : 4850.1 MB/s ARM LDP/STP copy : 2803.8 MB/s ARM STP fill : 4893.0 MB/s (0.5%) ARM STNP fill : 4851.7 MB/s ========================================================================== == Framebuffer read tests. == == == == Many ARM devices use a part of the system memory as the framebuffer, == == typically mapped as uncached but with write-combining enabled. == == Writes to such framebuffers are quite fast, but reads are much == == slower and very sensitive to the alignment and the selection of == == CPU instructions which are used for accessing memory. == == == == Many x86 systems allocate the framebuffer in the GPU memory, == == accessible for the CPU via a relatively slow PCI-E bus. Moreover, == == PCI-E is asymmetric and handles reads a lot worse than writes. == == == == If uncached framebuffer reads are reasonably fast (at least 100 MB/s == == or preferably >300 MB/s), then using the shadow framebuffer layer == == is not necessary in Xorg DDX drivers, resulting in a nice overall == == performance improvement. For example, the xf86-video-fbturbo DDX == == uses this trick. == ========================================================================== NEON LDP/STP copy (from framebuffer) : 602.5 MB/s NEON LDP/STP 2-pass copy (from framebuffer) : 551.6 MB/s NEON LD1/ST1 copy (from framebuffer) : 667.1 MB/s NEON LD1/ST1 2-pass copy (from framebuffer) : 605.6 MB/s ARM LDP/STP copy (from framebuffer) : 445.3 MB/s ARM LDP/STP 2-pass copy (from framebuffer) : 428.8 MB/s ========================================================================== == Memory latency test == == == == Average time is measured for random memory accesses in the buffers == == of different sizes. The larger is the buffer, the more significant == == are relative contributions of TLB, L1/L2 cache misses and SDRAM == == accesses. For extremely large buffer sizes we are expecting to see == == page table walk with several requests to SDRAM for almost every == == memory access (though 64MiB is not nearly large enough to experience == == this effect to its fullest). == == == == Note 1: All the numbers are representing extra time, which needs to == == be added to L1 cache latency. The cycle timings for L1 cache == == latency can be usually found in the processor documentation. == == Note 2: Dual random read means that we are simultaneously performing == == two independent memory accesses at a time. In the case if == == the memory subsystem can't handle multiple outstanding == == requests, dual random read has the same timings as two == == single reads performed one after another. == ========================================================================== block size : single random read / dual random read 1024 : 0.0 ns / 0.0 ns 2048 : 0.0 ns / 0.0 ns 4096 : 0.0 ns / 0.0 ns 8192 : 0.0 ns / 0.0 ns 16384 : 0.0 ns / 0.0 ns 32768 : 0.0 ns / 0.0 ns 65536 : 4.5 ns / 7.2 ns 131072 : 6.8 ns / 9.7 ns 262144 : 9.8 ns / 12.8 ns 524288 : 11.4 ns / 14.7 ns 1048576 : 16.0 ns / 22.6 ns 2097152 : 114.0 ns / 175.3 ns 4194304 : 161.7 ns / 219.9 ns 8388608 : 190.7 ns / 241.5 ns 16777216 : 205.3 ns / 250.5 ns 33554432 : 212.9 ns / 255.5 ns 67108864 : 222.3 ns / 271.1 ns

Images 0.6.x

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0.6.60 released

0.6.60: Fix pcie/nvme/sata support for 4.4, 0.6.60: Fix spi-flash access for 4.4/mainline,

Ich bin davon ausgegangen, das 0.6.x nict mehr fortgeführt wird, okay - sieht nicht so aus.

Sollte released werden, ist aber aus irgendeinem Grund gestern nicht passiert (lt. Kamil)

ROCKPro64 - Übersicht

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Bericht der Zeitschrift Make.

Link Preview Image Bastelrechner NanoPC-T4 und ROCKPro64: Mehr Raspi-Konkurrenz mit Rockchip

Leistungsfähige Raspi-Konkurrenten setzen zunehmend auf den Chip-Hersteller Rockchip. Zwei neue RK3399-Boards eröffnen die Alternative: kompakt oder günstig?

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Make (www.heise.de)

linux-nerds.org

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