xref: /openbmc/linux/arch/alpha/Kconfig.debug (revision fbb6b31a)
1# SPDX-License-Identifier: GPL-2.0
2
3config EARLY_PRINTK
4	bool
5	depends on ALPHA_GENERIC || ALPHA_SRM
6	default y
7
8config ALPHA_LEGACY_START_ADDRESS
9	bool "Legacy kernel start address"
10	depends on ALPHA_GENERIC
11	default n
12	help
13	  The 2.4 kernel changed the kernel start address from 0x310000
14	  to 0x810000 to make room for the Wildfire's larger SRM console.
15	  Recent consoles on Titan and Marvel machines also require the
16	  extra room.
17
18	  If you're using aboot 0.7 or later, the bootloader will examine the
19	  ELF headers to determine where to transfer control. Unfortunately,
20	  most older bootloaders -- APB or MILO -- hardcoded the kernel start
21	  address rather than examining the ELF headers, and the result is a
22	  hard lockup.
23
24	  Say Y if you have a broken bootloader.  Say N if you do not, or if
25	  you wish to run on Wildfire, Titan, or Marvel.
26
27config ALPHA_LEGACY_START_ADDRESS
28	bool
29	depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
30	default y
31
32config MATHEMU
33	tristate "Kernel FP software completion" if DEBUG_KERNEL && !SMP
34	default y if !DEBUG_KERNEL || SMP
35	help
36	  This option is required for IEEE compliant floating point arithmetic
37	  on the Alpha. The only time you would ever not say Y is to say M in
38	  order to debug the code. Say Y unless you know what you are doing.
39