Documentation

• GLOSSARY
• Information on HP9000 Servers and Workstations
  • SERIES 700 WORKSTATIONS
  • VME INDUSTRIAL WORKSTATIONS
  • SERIES 800 SERVERS
  • NOTES ON HP MODELS AND INTERFACES
• Technical Documentation
  • HP 9000 Chipset Documentation
  • PA-RISC 1.1 Architecture Specifications
  • PA-RISC 2.0 Architecture Specifications
  • HP 9000 User/Owner Guides
  • PA-RISC Papers and Presentations
  • Undocumented chips
  • OTHER USEFUL LINKS
• PA-RISC Linux Kernel
  • Kernel issues
  • Kernel flavours
  • Low Level Kernel Code
  • Specific Device Drivers
  • PA-RISC Hardware/Firmware
  • Other Gotchas
• Known Issues with the PA-RISC Linux Kernel
  • Missing/Incomplete PA-RISC specific Drivers
  • Broken Device Drivers and File Systems
  • Other Missing Features (related to palo, glibc, userspace etc.)
• Test Cases
  • Kernel Testcases
    • Math test case
    • Futex wait failure
    • Threads and fork on VIPT-WB machines
      • Patches
    • vfork/execve
      • Patches
    • floating point SIGFPE not trapped
      • Patches
  • GCC TestCases
    • MMAP
  • GLIBC TestCases
    • Segmentation fault in __libc_start_main with -static
• Running HP-UX 9.0 on virtual HP9000/370 with MAME
• Hidden B/C/J Class Manufacturer and DEBUG commands
• Repairing a non-starting C240/C360 Power supply
• C8000 Debug connector
• Offline Diagnostic Environment (ODE)
  • Booting ODE
  • L2DIAG
  • Useful ODE tools
  • Known issues/test failures in WDIAG in section 35/86
  • Known issues/test failures in L2DIAG
• KGDB
  • Required configuration to use KGDB/KDB for kernel debugging
  • Entering kdb
  • Usage
  • Using breakpoints
  • Using gdb
• Registers Dump
• Processor Limitations and Known Bugs
  • Cache
  • PA 1.1
    • Block TLB vs Variable page sizes
  • PA 2.0
    • Long divides
    • Unsigned vs Signed ints
    • PA-RISC CPU Cache Design
• Documentation WishList
• TODO
  • PA-RISC status and TODO 2024-04-30
    • Kernel
    • QEMU
      • Full-system emulation
      • QEMU user-mode emulation
      • QEMU system mode issues
    • glibc
    • executable stack
    • Debian
    • gcc compiler
    • JAVA
    • Rust language
    • gcc compiler
    • kernel work
    • Debian packages / Userspace work
    • palo (PA-RISC Boot Loader)
  • Upstream PA-RISC-related kernel patch history
    • Kernel 3.8
    • Kernel 3.9
    • Kernel 3.10
    • Kernel 3.11
    • Kernel 3.12
    • Kernel 3.13
    • Kernel 3.14
    • Kernel 3.15
    • Kernel 3.16
    • Kernel 3.17
    • Kernel 3.18
    • Kernel 3.19
    • Kernel 4.0
    • Kernel 4.1
    • Kernel 4.2
    • Kernel 4.3
    • Kernel 4.4
    • Kernel 4.5
    • Kernel 4.6
    • Kernel 4.7
    • Kernel 4.8
    • Kernel 4.9
    • Kernel 4.10
    • Kernel 4.11
    • Kernel 4.12
    • Kernel 4.13
    • Kernel 4.14
    • Kernel 4.15
    • Kernel 4.16
    • Kernel 4.17
    • Kernel 4.18
    • Kernel 4.19
    • Kernel 4.20
    • Kernel 5.0
    • Kernel 5.1
    • Kernel 5.2
    • Kernel 5.3
    • Kernel 5.4
    • Kernel 5.5
    • Kernel 5.6
    • Kernel 5.7
    • Kernel 5.8
    • Kernel 5.9
    • Kernel 5.10
    • Kernel 5.11
    • Kernel 5.12
    • Kernel 5.13
    • Kernel 5.14
    • Kernel 5.15
    • Kernel 5.16
    • Kernel 5.17
    • Kernel 5.18
    • Kernel 5.19
    • Kernel 6.0
    • Kernel 6.1
    • Kernel 6.2
    • Kernel 6.3
    • Kernel 6.4
    • Kernel 6.5
    • Kernel 6.6
    • Kernel 6.7
    • Kernel 6.8
    • Kernel 6.9
    • Kernel 6.10
    • Kernel 6.11
    • Kernel 6.12
    • Kernel 6.13
    • Kernel 6.14
  • DONE items
    • Debian kernel and userspace programs
    • ABI breakages (e.g. dropped HP-UX support)
    • parisc-linux.org Homepage and Debian build server infrastructure work
    • Linus Torvalds talking or working about parisc
  • Testsuites, kernel and userspace testing tools
  • TODO Drivers
    • Review all the todo entries below!
• AD1889 Driver
  • What is AD1889
  • What are we trying to do?
  • How do we do it?
  • Bugs & Issues
    • Mixer Sliders Wrapping
  • TODO
  • Whishlist
• Artist graphics registers (used in HP9000/712)
• Baseboard Management Controller (BMC)
  • How to access
  • Reading IPMI data in Linux
• Cache and TLB on PA8800
  • Notes from PA8800 ERS:
    • 3.2.1 Physical Address Mode
    • 3.2.9 Support for Non-Equivalent Aliasing (Nva)
    • 3.3.4 Load and Clr word operation
    • 14.2 Data Cache
    • 14.2.1 Flushing the cache using FDCE instructions
    • 15.1 Overview
    • 15.2 Flushing the cache
      • 15.2.1 Flushing instruction lines from the cache using FICE instructions
    • 3.4 PA2.0 Architectural Exceptions
    • 3.5 Permanent Defects
• Console Types
  • Issues
• Debian install guide
  • Debian GNU/Linux 9 and 10 for the PA-RISC (hppa) architecture.
  • Installation media and mirrors.
  • Installation Guide
  • after install
  • list of packages in repos
• Debian/gnu Parisc Linux
  • Debian GNU/Linux 9 and 10 for the PA-RISC (hppa) architecture.
  • Latest stable (Stretch) update packages.
  • Installation media and mirrors.
  • Installation Guide
  • Installation Guide Stretch
  • Installation Guide Buster
  • after install
  • Making installation media
• Manual steps to install PA-RISC Linux
  • Manual installation of a PARISC machine via repository on http://ftp.debian-ports.org/debian
  • Old installation medias (Debian Lenny)
  • Old installation medias (Debian Lenny) - notes by Tom Hogland <thogland@alaskatech.org>
• The PA-RISC Device Model
  • How PA-RISC Devices Are Discovered
• Discontiguous Memory Support
• Early Development
  • Year 1999
  • Year 2000
  • Year 2001
• The Implementation of Futexes on PA-RISC
  • Introduction
  • Futex Implementations
  • Potential PA-RISC implementations
  • Conclusion
  • References
• Gccgo for hppa
• GSC
  • Misc Notes
• GSP Notes
• GSP (Guardian Service Processor) Firmware Update
  • Update process
• Guardian Service Processor
  • Using the GSP card with Linux
  • Remote Power On on B2600 and J6000 machines
• Hall of Fame
  • CONTRIBUTORS
    • All-time developers
    • Regular & recent developers (after 2015)
    • Historic developer heroes (until 2015)
• Harmony Audio
  • Modus Operandi
  • Documentation
• The HIL bus and HIL drivers
  • HIL overview
  • HIL technical overview
  • The simple HIL keyboard-only driver
  • The full HIL-driver for keyboards, mice, tablets and others
  • Debian Linux distribution and HIL devices
  • High CPU load with HIL drivers, ksoftirqd uses 70-100 percent of the CPU time
• HP3000
• HP Product Numbers
• HPUX-9
  • HP-UX 9.x/8.x installation from scratch
    • Prerequisites
    • Base system
      • From CD
• Installing Debian on hp workstation c8000
  • MOTIVATIONS AND SCOPES
• Interrupts
  • How the hardware works
  • How it was
  • Recent changes
  • How it works
    • /proc/interrupts
  • The future
  • Gory Interrupt architecture details on Astro ([BCJNL]xxx0/A500) machines
• The PA-RISC/Linux Project
  • What is it?
• IO-MMU
• IO-SAPIC
  • Acronyms
  • What’s a Message Signalled Interrupt?
  • PA Firmware
  • Where’s the iosapic?
  • IRQ handling notes
  • Overview of exported iosapic functions
• Kernel Profiling
  • Using readprofile
  • Using oprofile
• Locks
• Notes on porting Mono
  • Preparation
  • Getting Started
• NGLE
  • Copy area
• OLS PARISC BOF 2006
  • BOF Topics
    • PA8800
    • NPTL Debugging
    • State of the Kernel
    • tmplalias flushing
    • GIT
    • H/W Support
    • 64-bit Userspace
    • Debian Etch
• PA-RISC Linux Project History
  • OLD NEWS
    • Dec 2022
    • Nov 2022
    • Oct 2022
    • Sep 2022
    • Aug 2022
    • Jun 2022
    • May 2022
    • Apr 2022
    • Mar 2022
    • Feb 2022
    • Jan 2022
    • Dec 2021
    • Nov 2021
    • Sep 2021
    • Jul 2021
    • Feb 2021
    • Jan 2021
    • Dec 2020
    • Oct 2020
    • Aug 2020
    • Jul 2020
    • Feb 2020
    • Sep 2019
    • Jul 2019
    • May 2019
    • Apr 2019
    • Mar 2019
    • Jan 2019
    • Nov 2018
    • Sep 2018
    • Jul 2018
    • Apr 2018
    • Mar 2018
    • Feb 2018
    • Jan 2018
    • Dec 2017
    • Sep 2017
    • Aug 2017
    • June 2017
    • May 2017
    • Apr 2017
    • Feb 2017
    • Jan 2017
    • Dec 2016
    • Nov 2016
    • Oct 2016
    • Sep 2016
    • Aug 2016
    • Jul 2016
    • Jun 2016
    • Apr 2016
    • Mar 2016
    • Feb 2016
    • Jan 2016
    • Dec 2015
    • Oct 2015
    • Sep 2015
    • Aug 2015
    • Jul 2015
    • Jun 2015
    • Apr 2015
    • Mar 2015
    • Feb 2015
    • Jan 2015
    • Dec 2014
    • Nov 2014
    • Oct 2014
    • Sep 2014
    • Aug 2014
    • Jul 2014
    • Jun 2014
    • May 2014
    • Apr 2014
    • Mar 2014
    • Feb 2014
    • Jan 2014
    • Dec 2013
    • Aug 2013
    • Apr 2013
    • Mar 2013
    • Feb 2013
    • Feb 2012
    • Sep 2010
    • Sep 2009
    • Feb 2009
    • Apr 2007
    • Jul 2006
    • Mar 2006
    • Dec 2005
    • Dec 2005
    • Jun 2005
    • Mar 2005
    • Jun 2004
  • PROJECT HISTORY
    • December 1, 2000
    • December 15, 1999
    • November 19, 1999
    • August 16, 1999
    • July 6, 1999
    • June 26-27, 1999
    • June 25, 1999
    • May 19-24, 1999
    • May 15, 1999
    • March 9, 1999
    • March 1999
    • February 1999
    • January 1999
    • October 1998
• INSTALLING PA-RISC Linux
  • HP-UX and Linux on a Single PA-RISC Box
  • Our Boot Loader isn’t Lilo
  • Disk Partitions
• PA-RISC PCI Support
  • Built-in Dino
  • Card-Mode Dino
  • Elroy with Legacy PDC
  • Mercury with PAT PDC
• PDC CHASSIS
  • What is PDC CHASSIS
  • What are we trying to do?
  • How do we do it?
    • Linking kernel events to messages
  • Kernel parameter
• PDC Chassis Log
  • What is PDC Chassis Log
  • What are we trying to do?
  • How do we do it?
    • Accessing the PDC
    • Anatomy of the Log messages
• PDC Stable Storage
  • Brief version history
  • What is Stable Storage?
  • What are we trying to do?
  • How do we do it?
    • Accessing the PDC
    • Converting Paths
      • Anatomy Of Paths
      • The Algorithms
        • Matching an existing hwpath back to its original device
        • Matching an existing device to its corresponding hardware path
    • Kernel Interface
      • OS-Dependent Data
      • File Permissions
  • BUGS & TODO
    • Design Choices & Known Features
    • TODO List
• Processor Dependent Code
  • What is the PDC?
    • Code Documentation
• Puffinfest Fort Collins
• Qemu
  • QEMU for PA-RISC overview
  • QEMU supported guest operating systems
  • QEMU command line options
    • HPPA specific qemu options
    • While running you can press
  • Examples on how to start the emulator
  • QEMU special emulated assembler statements
    • Qemu standard debugging options
  • How to build QEMU from source
  • Linux
    • Ready-to-run Debian Linux QEMU images for parisc
    • How to run QEMU with Debian-10 installer image
    • How to create chroot for linux-user
    • Gentoo Linux
  • HP-UX
    • HP ODE
    • HP-UX 9.x
  • NetBSD
  • OSF/MkLinux
  • Future QEMU work
  • Screenshots
    • HP-UX CDE graphical Login
    • HP-UX CDE
    • HP-UX 10.20 with VUE
• Random Reverse Engineering Notes
  • Memory Layout J5000
  • PDC PAGE0 processor specific
• PA-RISC Linux Register Conventions
• PA-RISC Processor Registers
  • General Registers as specified by ABI
    • Control Registers
    • Space Registers (kernel mode)
    • Space Registers (user mode)
    • Processor Status Word
    • “Invisible” Registers
  • Notes
• rp3410 PA-RISC server
• Saying
• PA-RISC Space Registers and How to use them
  • Instructions
  • In Linux
• Sparse
• Stack Unwinding
  • HP unwinding information
  • DWARF2 Unwinding
  • Signal Frame Unwinding
  • Virtual Dynamic Shared Objects (vDSO) and signal frame unwinding
• Thread Local Storage
  • gcc
    • General Dynamic TLS Model
    • Local Dynamic TLS Model
    • Initial Exec TLS Model
    • Local Exec TLS Model
  • gas
  • ld
  • glibc
  • kernel
  • References
• Implementing High Precision Timers
  • Implementing get_cycles
  • Implementing get_cpu_mhz
  • Implementing high-precision clock_gettime
• Time64
  • Upgrading system to latest debian-ports binaries
  • Thoughts during debian’s time64 transition
• vDSO
  • Kernel Implementation
  • Userspace Implementation
• Virtual Memory
  • PA-RISC VIPT caches
  • PA-RISC equivalent and non-equivalent aliasing issues
  • Page Tables
  • VM Initialization
  • Page Fault Handling
  • translation_exists()
• HP Visualize FX
  • Physical Characteristics
  • Chipset Info
  • Video Out Board (A4556A)
  • Interrupts
  • STI Graphics IDs
  • lspci output
  • Modus Operandi
  • Spaces
  • CD Buffers
  • Registers
    • UP_CONTROL (0x0024’9000)
    • UP_INT_ADDR (0x0024’9200)
    • UP_INT_DATA (0x0024’9240)
    • UP_PSTI_SCRATCH1 (0x0024’9180)
    • UP_PSTI_SCRATCH2 (0x0024’91a0)
    • UP_PSTI_SCRATCH3 (0x0024’91c0)
    • UP_PSTI_SCRATCH4 (0x0024’91e0)
    • UB_PSTI_SCRATCH1 (0x0064’1180)
    • UB_PSTI_SCRATCH2 (0x0064’11a0)
    • UB_PSTI_SCRATCH3 (0x0064’11c0)
    • UB_PSTI_SCRATCH4 (0x0064’11e0)
    • UB_STI_SCRATCH1 (0x0064’1580) also UB_CLIP_PLANE_STAMP (Lego only?)
    • UB_STI_SCRATCH2 (0x0064’15a0)
    • UB_STI_SCRATCH3 (0x0064’15c0)
    • UB_STI_SCRATCH4 (0x0064’15e0)
    • UB_STATUS (0x0064’1400)
    • UB_IRC (0x0064’3030)
    • UB_UIRC (0x0064’3034)
    • B2_IRC (0x00A4’3030)
    • B3_IRC (0x00E4’3030)
    • B2_OTR - Overlay Transparency Register (0x0092’1148)
    • B2_WORG (0x00a0’0818)
    • UB_UREAD_DATA (0x0064’14c0)
    • B2_READ_DATA (0x00a4’1480)
    • B3_READ_DATA (0x00e4’1480)
  • Glossary

Developments in Progress

• Visualize FX driver effort

• NGLE hardware acceleration

• Mono Porting effort

Interwiki Links

• WikiPedia has a nice article about PA-RISC

• Check also the article about the GSC bus