* [PATCH 2/4] alpha: correct system descriptions in Kconfig help text
2026-10-01 16:50 [PATCH 1/4] alpha: replace dead links in Kconfig help text Matt Turner
@ 2026-10-01 16:50 ` Matt Turner
2026-10-01 16:50 ` [PATCH 3/4] alpha: link platform help text to the alphalinux.org wiki Matt Turner
2026-10-01 16:50 ` [PATCH 4/4] alpha: default NR_CPUS to 32 for Wildfire Matt Turner
2 siblings, 0 replies; 4+ messages in thread
From: Matt Turner @ 2026-10-01 16:50 UTC (permalink / raw)
To: linux-alpha; +Cc: Magnus Lindholm, linux-kernel, Matt Turner
Fix the system lists in the "Alpha system type" choice and the platform
help texts, cross-checked against the alphalinux.org wiki and the
kernel sources:
- There is no AlphaServer GS40 or DS10E. Wildfire also shipped with
EV68 (21264C) CPUs.
- "AS" means AlphaServer elsewhere in the list, but the Alcor "AS 600,
AS 500" are AlphaStations, as is the Noritake "AlphaServer 600A".
- Takara is 21164-based, not "11164".
- Linux 6.10 dropped support for CPUs before EV56, which took the
AlphaStation 600 and Alpha XL 300 with it. Say once that EV56 or
later is required rather than qualifying every entry.
- Add systems missing from their entries: the UP1500 (Nautilus), DS15
and TS202c (Titan), Digital Server 3300 (Noritake), Digital Server
5300 and 7300 (Rawhide), and the Ruffian boards in place of
"Samsung APC164UX".
- Add Eiger, Nautilus and RX164 to the summary list and help text to
PC164, RX164, SX164 and Shark, which had none. Note that the Ruffian
and RX164 boards have no SRM console.
Also drop the Jensen and EV4/EV5 references removed in 6.10, and the
claim that SRM cannot boot from IDE, which is not true of SRM in
general. NR_CPUS can be set to 32 on any platform, so say what the
hardware supports instead of implying a per-platform kernel limit.
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
arch/alpha/Kconfig | 85 ++++++++++++++++++++++++++++++----------------
1 file changed, 55 insertions(+), 30 deletions(-)
diff --git ./arch/alpha/Kconfig ./arch/alpha/Kconfig
index 7c1cc676ddfe..920dd10e7df0 100644
--- ./arch/alpha/Kconfig
+++ ./arch/alpha/Kconfig
@@ -126,28 +126,35 @@ choice
This is the system type of your hardware. A "generic" kernel will
run on any supported Alpha system. However, if you configure a
kernel for your specific system, it will be faster and smaller.
+ Only EV56 (21164A) and later CPUs are supported.
To find out what type of Alpha system you have, see the system and
motherboard lists at
<https://alphalinux.org/wiki/hardware:systems> and
<https://alphalinux.org/wiki/hardware:motherboards>. In summary:
- Alcor/Alpha-XLT AS 600, AS 500, XL-300, XL-366
- DP264 DP264 / DS20 / ES40 / DS10 / DS10L
+ Alcor/Alpha-XLT AlphaStation 500, Alpha XL 366, 433
+ DP264 DP264, UP2000(+), DS10, DS10L, DS20, DS20E,
+ ES40, XP900, XP1000
+ Eiger Eiger (OEM)
LX164 AlphaPC164-LX
+ Marvel AlphaServer ES47, ES80, GS1280
Miata Personal Workstation 433/500/600 a/au
- Marvel AlphaServer ES47 / ES80 / GS1280
- Mikasa AS 1000
- Noritake AS 1000A, AS 600A, AS 800
+ Mikasa AlphaServer 1000
+ Nautilus UP1000, UP1100, UP1500
+ Noritake AlphaServer 1000A, 800, AlphaStation 600A,
+ Digital Server 3300
PC164 AlphaPC164
- Rawhide AS 1200, AS 4000, AS 4100
+ Rawhide AlphaServer 1200, 4000, 4100,
+ Digital Server 5300, 7300
Ruffian RPX164-2, AlphaPC164-UX, AlphaPC164-BX
+ RX164 AlphaPC164-RX
SX164 AlphaPC164-SX
- Sable AS 2000, AS 2100
- Shark DS 20L
+ Sable AlphaServer 2000, 2100
+ Shark AlphaServer DS20L, API NetWorks CS20
Takara Takara (OEM)
- Titan AlphaServer ES45 / DS25 / DS15
- Wildfire AlphaServer GS 40/80/160/320
+ Titan AlphaServer DS15, DS25, ES45, TS202c
+ Wildfire AlphaServer GS80, GS160, GS320
If you don't know what to do, choose "generic".
@@ -168,13 +175,14 @@ config ALPHA_ALCOR
controller (256-bit memory bus) and a PCI interface. It also does
all the work required to support an external Bcache and to maintain
memory coherence when a PCI device DMAs into (or out of) memory.
+ It is used by the AlphaStation 500 and the Alpha XL 366 and 433.
config ALPHA_DP264
bool "DP264"
help
Various 21264 systems with the tsunami core logic chipset.
- API Networks: 264DP, UP2000(+), CS20;
- Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
+ API NetWorks: 264DP, UP2000(+);
+ Compaq: DS10, DS10L, XP900, XP1000, DS20, DS20E, ES40.
config ALPHA_EIGER
bool "Eiger"
@@ -197,8 +205,8 @@ config ALPHA_MIATA
bool "Miata"
select HAVE_EISA
help
- The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
- or 600au).
+ The Digital Personal Workstation (PWS 433a, 433au, 500a, 500au,
+ 600a, or 600au).
config ALPHA_MIKASA
bool "Mikasa"
@@ -208,34 +216,47 @@ config ALPHA_MIKASA
config ALPHA_NAUTILUS
bool "Nautilus"
help
- Alpha systems based on the AMD 751 & ALI 1543C chipsets.
+ UP1000, UP1100 and UP1500 systems based on the AMD 751 or 761
+ chipset.
config ALPHA_NORITAKE
bool "Noritake"
select HAVE_EISA
help
- AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
- systems.
+ AlphaServer 1000A, AlphaServer 800, AlphaStation 600A and
+ Digital Server 3300 systems.
config ALPHA_PC164
bool "PC164"
+ help
+ AlphaPC164, a 21164A-based single-board computer using the CIA
+ chipset.
config ALPHA_RAWHIDE
bool "Rawhide"
select HAVE_EISA
help
- AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
+ AlphaServer 1200, 4000 and 4100 and Digital Server 5300 and 7300
+ machines.
config ALPHA_RUFFIAN
bool "Ruffian"
help
- Samsung APC164UX.
+ DeskStation RPX164-2, AlphaPC164-UX and AlphaPC164-BX boards.
+ They have no SRM console and can only boot Linux through MILO.
config ALPHA_RX164
bool "RX164"
+ help
+ AlphaPC164-RX, a 21164PC-based single-board computer using the
+ Polaris chipset. It has no SRM console and can only boot Linux
+ through MILO.
config ALPHA_SX164
bool "SX164"
+ help
+ AlphaPC164-SX, a 21164PC-based single-board computer using the
+ Pyxis chipset.
config ALPHA_SABLE
bool "Sable"
@@ -245,21 +266,26 @@ config ALPHA_SABLE
config ALPHA_SHARK
bool "Shark"
+ help
+ AlphaServer DS20L and API NetWorks CS20 systems based on the
+ Tsunami chipset.
config ALPHA_TAKARA
bool "Takara"
help
- Alpha 11164-based OEM single-board computer.
+ Alpha 21164-based OEM single-board computer.
config ALPHA_TITAN
bool "Titan"
help
- AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
+ AlphaServer DS15, DS25, ES45 and TS202c based on EV68 and the
+ Titan chipset.
config ALPHA_WILDFIRE
bool "Wildfire"
help
- AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
+ AlphaServer GS80, GS160 and GS320 SMP based on the EV67 or EV68
+ core.
endchoice
@@ -378,10 +404,9 @@ config ALPHA_SRM
loaded either from ARC or can be installed directly as a permanent
firmware replacement from floppy (which requires changing a certain
jumper on the motherboard). If you want to do either of these, say N
- here. If MILO doesn't work on your system (true for Jensen
- motherboards), you can bypass it altogether and boot Linux directly
- from an SRM console; say Y here in order to do that. Note that you
- won't be able to boot from an IDE disk using SRM.
+ here. If MILO doesn't work on your system, you can bypass it
+ altogether and boot Linux directly from an SRM console; say Y here
+ in order to do that.
If unsure, say N.
@@ -414,8 +439,8 @@ config NR_CPUS
default "32" if ALPHA_GENERIC || ALPHA_MARVEL
default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
help
- MARVEL support can handle a maximum of 32 CPUs, all the others
- with working support have a maximum of 4 CPUs.
+ The kernel supports at most 32 CPUs. Only Marvel and Wildfire
+ systems have more than 4.
config ARCH_SPARSEMEM_ENABLE
bool "Sparse Memory Support"
@@ -439,8 +464,8 @@ config ALPHA_WTINT
For emulation under QEMU, definitely say Y here, as we have other
mechanisms for measuring time than the cycle counter.
- For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
- MILO, sleep mode is not supported so you might as well say N here.
+ For EV56 systems, or for systems running MILO, sleep mode is not
+ supported so you might as well say N here.
For SMP systems we cannot use the cycle counter for timing anyway,
so you might as well say Y here.
--
2.54.0
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH 3/4] alpha: link platform help text to the alphalinux.org wiki
2026-10-01 16:50 [PATCH 1/4] alpha: replace dead links in Kconfig help text Matt Turner
2026-10-01 16:50 ` [PATCH 2/4] alpha: correct system descriptions " Matt Turner
@ 2026-10-01 16:50 ` Matt Turner
2026-10-01 16:50 ` [PATCH 4/4] alpha: default NR_CPUS to 32 for Wildfire Matt Turner
2 siblings, 0 replies; 4+ messages in thread
From: Matt Turner @ 2026-10-01 16:50 UTC (permalink / raw)
To: linux-alpha; +Cc: Magnus Lindholm, linux-kernel, Matt Turner
The alphalinux.org wiki has a page for each system and motherboard
covering its CPUs, firmware, Linux status and known issues. Link each
platform's help text to the pages for the systems it supports.
Signed-off-by: Matt Turner <mattst88@gmail.com>
---
arch/alpha/Kconfig | 47 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 47 insertions(+)
diff --git ./arch/alpha/Kconfig ./arch/alpha/Kconfig
index 920dd10e7df0..0fc61d986a7d 100644
--- ./arch/alpha/Kconfig
+++ ./arch/alpha/Kconfig
@@ -177,6 +177,8 @@ config ALPHA_ALCOR
memory coherence when a PCI device DMAs into (or out of) memory.
It is used by the AlphaStation 500 and the Alpha XL 366 and 433.
+ See <https://alphalinux.org/wiki/hardware:systems:alcor>.
+
config ALPHA_DP264
bool "DP264"
help
@@ -184,23 +186,37 @@ config ALPHA_DP264
API NetWorks: 264DP, UP2000(+);
Compaq: DS10, DS10L, XP900, XP1000, DS20, DS20E, ES40.
+ See:
+ <https://alphalinux.org/wiki/hardware:systems:webbrick>
+ <https://alphalinux.org/wiki/hardware:systems:goldrush>
+ <https://alphalinux.org/wiki/hardware:systems:clipper>
+ <https://alphalinux.org/wiki/hardware:systems:monet>
+ <https://alphalinux.org/wiki/hardware:motherboards:pc264dp>
+ <https://alphalinux.org/wiki/hardware:motherboards:up2000>
+
config ALPHA_EIGER
bool "Eiger"
help
Apparently an obscure OEM single-board computer based on the
Typhoon/Tsunami chipset family. Information on it is scanty.
+ See <https://alphalinux.org/wiki/hardware:motherboards:eiger>.
+
config ALPHA_LX164
bool "LX164"
help
AlphaPC164-LX, a 21164A-based single-board computer using the
Pyxis chipset.
+ See <https://alphalinux.org/wiki/hardware:motherboards:pc164lx>.
+
config ALPHA_MARVEL
bool "Marvel"
help
AlphaServer ES47 / ES80 / GS1280 based on EV7.
+ See <https://alphalinux.org/wiki/hardware:systems:marvel>.
+
config ALPHA_MIATA
bool "Miata"
select HAVE_EISA
@@ -208,17 +224,26 @@ config ALPHA_MIATA
The Digital Personal Workstation (PWS 433a, 433au, 500a, 500au,
600a, or 600au).
+ See <https://alphalinux.org/wiki/hardware:systems:miata>.
+
config ALPHA_MIKASA
bool "Mikasa"
help
AlphaServer 1000-based Alpha systems.
+ See <https://alphalinux.org/wiki/hardware:systems:mikasa>.
+
config ALPHA_NAUTILUS
bool "Nautilus"
help
UP1000, UP1100 and UP1500 systems based on the AMD 751 or 761
chipset.
+ See:
+ <https://alphalinux.org/wiki/hardware:motherboards:up1000>
+ <https://alphalinux.org/wiki/hardware:motherboards:up1100>
+ <https://alphalinux.org/wiki/hardware:motherboards:up1500>
+
config ALPHA_NORITAKE
bool "Noritake"
select HAVE_EISA
@@ -226,12 +251,16 @@ config ALPHA_NORITAKE
AlphaServer 1000A, AlphaServer 800, AlphaStation 600A and
Digital Server 3300 systems.
+ See <https://alphalinux.org/wiki/hardware:systems:noritake>.
+
config ALPHA_PC164
bool "PC164"
help
AlphaPC164, a 21164A-based single-board computer using the CIA
chipset.
+ See <https://alphalinux.org/wiki/hardware:motherboards:pc164>.
+
config ALPHA_RAWHIDE
bool "Rawhide"
select HAVE_EISA
@@ -239,12 +268,16 @@ config ALPHA_RAWHIDE
AlphaServer 1200, 4000 and 4100 and Digital Server 5300 and 7300
machines.
+ See <https://alphalinux.org/wiki/hardware:systems:rawhide>.
+
config ALPHA_RUFFIAN
bool "Ruffian"
help
DeskStation RPX164-2, AlphaPC164-UX and AlphaPC164-BX boards.
They have no SRM console and can only boot Linux through MILO.
+ See <https://alphalinux.org/wiki/hardware:motherboards:pc164ux>.
+
config ALPHA_RX164
bool "RX164"
help
@@ -252,41 +285,55 @@ config ALPHA_RX164
Polaris chipset. It has no SRM console and can only boot Linux
through MILO.
+ See <https://alphalinux.org/wiki/hardware:motherboards:pc164rx>.
+
config ALPHA_SX164
bool "SX164"
help
AlphaPC164-SX, a 21164PC-based single-board computer using the
Pyxis chipset.
+ See <https://alphalinux.org/wiki/hardware:motherboards:pc164sx>.
+
config ALPHA_SABLE
bool "Sable"
select HAVE_EISA
help
Digital AlphaServer 2000 and 2100-based systems.
+ See <https://alphalinux.org/wiki/hardware:systems:sable>.
+
config ALPHA_SHARK
bool "Shark"
help
AlphaServer DS20L and API NetWorks CS20 systems based on the
Tsunami chipset.
+ See <https://alphalinux.org/wiki/hardware:systems:shark>.
+
config ALPHA_TAKARA
bool "Takara"
help
Alpha 21164-based OEM single-board computer.
+ See <https://alphalinux.org/wiki/hardware:motherboards:takara>.
+
config ALPHA_TITAN
bool "Titan"
help
AlphaServer DS15, DS25, ES45 and TS202c based on EV68 and the
Titan chipset.
+ See <https://alphalinux.org/wiki/hardware:systems:titan>.
+
config ALPHA_WILDFIRE
bool "Wildfire"
help
AlphaServer GS80, GS160 and GS320 SMP based on the EV67 or EV68
core.
+ See <https://alphalinux.org/wiki/hardware:systems:wildfire>.
+
endchoice
# clear all implied options (don't want default values for those):
--
2.54.0
^ permalink raw reply [flat|nested] 4+ messages in thread