Re: Configure.help entries wanted

[Keith Owens <kaos@ocs.com.au>]

On Fri, 25 May 2001 01:22:00 -0400, 
"Eric S. Raymond" <esr@thyrsus.com> wrote:
>Amaze your friends and confound your enemies with your hackerly erudition --
>contribute a Configure.help entry today!
>
>IA64 port:
>
>CONFIG_DISABLE_VHPT
>CONFIG_MCKINLEY_A0_SPECIFIC
>CONFIG_MCKINLEY_ASTEP_SPECIFIC
>CONFIG_IA64_DEBUG_CMPXCHG
>CONFIG_IA64_DEBUG_IRQ
>CONFIG_IA64_EARLY_PRINTK
>CONFIG_IA64_PRINT_HAZARDS

I claim my erudition prize (do I get steak knives with that?).
Against 2.4.4-ia64-010508.

Index: 4.20/Documentation/Configure.help
--- 4.20/Documentation/Configure.help Wed, 09 May 2001 14:46:25 +1000 kaos (linux-2.4/Z/c/10_Configure. 1.1.2.8.2.12 644)
+++ 4.20(w)/Documentation/Configure.help Fri, 25 May 2001 15:56:18 +1000 kaos (linux-2.4/Z/c/10_Configure. 1.1.2.8.2.12 644)
@@ -17678,6 +17678,49 @@ CONFIG_IA64_MCA
   Say Y here to enable machine check support for IA-64.  If you're
   unsure, answer Y.
 
+Disable IA-64 Virtual Hash Page Table
+CONFIG_DISABLE_VHPT
+  The Virtual Hash Page Table (VHPT) enhances virtual address
+  translation performance.  Normally you want the VHPT active but you
+  can select this option to disable the VHPT for debugging.  If you're
+  unsure, answer N.
+
+McKinley A-step specific code
+CONFIG_MCKINLEY_ASTEP_SPECIFIC
+  Select this option to build a kernel for an IA64 McKinley system
+  with any A-stepping CPU.
+
+McKinley A0/A1-step specific code
+CONFIG_MCKINLEY_A0_SPECIFIC
+  Select this option to build a kernel for an IA64 McKinley system
+  with an A0 or A1 stepping CPU.
+
+IA64 compare-and-exchange bug checking
+CONFIG_IA64_DEBUG_CMPXCHG
+  Selecting this option turns on bug checking for the IA64
+  compare-and-exchange instructions.  This is slow!  If you're unsure,
+  select N.
+
+IA64 IRQ bug checking
+CONFIG_IA64_DEBUG_IRQ
+  Selecting this option turns on bug checking for the IA64 irq_save and
+  restore instructions.  This is slow!  If you're unsure, select N.
+
+IA64 Early printk support
+CONFIG_IA64_EARLY_PRINTK
+  Selecting this option uses the VGA screen for printk() output before
+  the consoles are initialised.  It is useful for debugging problems
+  early in the boot process, but only if you have a VGA screen
+  attached.  If you're unsure, select N.
+
+IA64 Print Hazards
+CONFIG_IA64_PRINT_HAZARDS
+  Selecting this option prints more information for Illegal Dependency
+  Faults, that is, for Read after Write, Write after Write or Write
+  after Read violations.  This option is ignored if you are compiling
+  for an Itanium A step processor (CONFIG_ITANIUM_ASTEP_SPECIFIC).  If
+  you're unsure, select Y.
+
 Performance monitor support
 CONFIG_PERFMON
   Selects whether support for the IA-64 performance monitor hardware