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Linux/arch/mips/Kconfig.debug

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Diff markup

Differences between /arch/mips/Kconfig.debug (Version linux-6.12-rc7) and /arch/alpha/Kconfig.debug (Version linux-5.5.19)


  1 # SPDX-License-Identifier: GPL-2.0                  1 # SPDX-License-Identifier: GPL-2.0
  2                                                     2 
  3 config EARLY_PRINTK                                 3 config EARLY_PRINTK
  4         bool "Early printk" if EXPERT          << 
  5         depends on SYS_HAS_EARLY_PRINTK        << 
  6         default y                              << 
  7         help                                   << 
  8           This option enables special console  << 
  9           to print messages very early in the  << 
 10                                                << 
 11           This is useful for kernel debugging  << 
 12           early before the console code is ini << 
 13           it is not recommended because it loo << 
 14           doesn't cooperate with an X server.  << 
 15           unless you want to debug such a cras << 
 16                                                << 
 17 config EARLY_PRINTK_8250                       << 
 18         bool                                        4         bool
 19         depends on EARLY_PRINTK && USE_GENERIC !!   5         depends on ALPHA_GENERIC || ALPHA_SRM
 20         default y                                   6         default y
 21         help                                   << 
 22           "8250/16550 and compatible serial ea << 
 23           If you say Y here, it will be possib << 
 24           port as the boot console.            << 
 25                                                << 
 26 config USE_GENERIC_EARLY_PRINTK_8250           << 
 27         bool                                   << 
 28                                                << 
 29 config CMDLINE_BOOL                            << 
 30         bool "Built-in kernel command line"    << 
 31         help                                   << 
 32           For most systems, it is firmware or  << 
 33           by default specifies the kernel comm << 
 34           it might be necessary or advantageou << 
 35           default kernel command line or add a << 
 36           For such cases, this option allows y << 
 37           command line options directly into t << 
 38           should choose 'Y' here, and fill in  << 
 39           in CONFIG_CMDLINE.                   << 
 40                                                << 
 41           The built-in options will be concate << 
 42           line if CMDLINE_OVERRIDE is set to ' << 
 43           command line will be ignored and rep << 
 44                                                << 
 45           Most MIPS systems will normally expe << 
 46           the command line from the firmware o << 
 47                                                     7 
 48 config CMDLINE                                 !!   8 config ALPHA_LEGACY_START_ADDRESS
 49         string "Default kernel command string" !!   9         bool "Legacy kernel start address"
 50         depends on CMDLINE_BOOL                !!  10         depends on ALPHA_GENERIC
 51         help                                   << 
 52           On some platforms, there is currentl << 
 53           pass arguments to the kernel.  For t << 
 54           when you want to add some extra opti << 
 55           the default command line, you can su << 
 56           build time by entering them here.  I << 
 57           kernel args so that you don't have t << 
 58           initialization routines.             << 
 59                                                << 
 60           For more information, see the CMDLIN << 
 61           options.                             << 
 62                                                << 
 63 config CMDLINE_OVERRIDE                        << 
 64         bool "Built-in command line overrides  << 
 65         depends on CMDLINE_BOOL                << 
 66         help                                   << 
 67           By setting this option to 'Y' you wi << 
 68           command line arguments from firmware << 
 69           Instead, the built-in command line w << 
 70                                                << 
 71           Normally, you will choose 'N' here.  << 
 72                                                << 
 73 config SB1XXX_CORELIS                          << 
 74         bool "Corelis Debugger"                << 
 75         depends on SIBYTE_SB1xxx_SOC           << 
 76         select DEBUG_KERNEL if !COMPILE_TEST   << 
 77         select DEBUG_INFO if !COMPILE_TEST     << 
 78         help                                   << 
 79           Select compile flags that produce co << 
 80           Corelis mksym utility and UDB Emulat << 
 81                                                << 
 82 config DEBUG_ZBOOT                             << 
 83         bool "Enable compressed kernel support << 
 84         depends on DEBUG_KERNEL && SYS_SUPPORT << 
 85         default n                                  11         default n
 86         help                                   !!  12         ---help---
 87           If you want to add compressed kernel !!  13           The 2.4 kernel changed the kernel start address from 0x310000
 88           board supports uart16550 compatible  !!  14           to 0x810000 to make room for the Wildfire's larger SRM console.
 89           SYS_SUPPORTS_ZBOOT_UART16550 for you !!  15           Recent consoles on Titan and Marvel machines also require the
 90           debug it.                            !!  16           extra room.
 91                                                !!  17 
 92           If your board doesn't support uart16 !!  18           If you're using aboot 0.7 or later, the bootloader will examine the
 93           can try to select SYS_SUPPORTS_ZBOOT !!  19           ELF headers to determine where to transfer control. Unfortunately,
 94           debug it. for example, add a new ser !!  20           most older bootloaders -- APB or MILO -- hardcoded the kernel start
 95           arch/mips/boot/compressed/uart-16550 !!  21           address rather than examining the ELF headers, and the result is a
                                                   >>  22           hard lockup.
 96                                                    23 
 97           After the compressed kernel support  !!  24           Say Y if you have a broken bootloader.  Say N if you do not, or if
 98           to reduce the kernel image size and  !!  25           you wish to run on Wildfire, Titan, or Marvel.
 99           little.                              << 
100                                                    26 
101 config ZBOOT_INGENIC_UART                      !!  27 config ALPHA_LEGACY_START_ADDRESS
102         int "UART to use for compressed kernel !!  28         bool
103         depends on DEBUG_ZBOOT && MACH_INGENIC !!  29         depends on !ALPHA_GENERIC && !ALPHA_TITAN && !ALPHA_MARVEL && !ALPHA_WILDFIRE
104         default 0                              !!  30         default y
105         range 0 4                              << 
106         help                                   << 
107           Specify the UART that should be used << 
108                                                << 
109 config SPINLOCK_TEST                           << 
110         bool "Enable spinlock timing tests in  << 
111         depends on DEBUG_FS                    << 
112         default n                              << 
113         help                                   << 
114           Add several files to the debugfs to  << 
115                                                << 
116 config SCACHE_DEBUGFS                          << 
117         bool "L2 cache debugfs entries"        << 
118         depends on DEBUG_FS                    << 
119         help                                   << 
120           Enable this to allow parts of the L2 << 
121           whether or not prefetching is enable << 
122           via debugfs.                         << 
123                                                << 
124           If unsure, say N.                    << 
125                                                << 
126 menuconfig MIPS_CPS_NS16550_BOOL               << 
127         bool "CPS SMP NS16550 UART output"     << 
128         depends on MIPS_CPS                    << 
129         help                                   << 
130           Output debug information via an ns16 << 
131           occur early in the boot process of a << 
132                                                << 
133 if MIPS_CPS_NS16550_BOOL                       << 
134                                                << 
135 config MIPS_CPS_NS16550                        << 
136         def_bool MIPS_CPS_NS16550_BASE != 0    << 
137                                                << 
138 config MIPS_CPS_NS16550_BASE                   << 
139         hex "UART Base Address"                << 
140         default 0x1b0003f8 if MIPS_MALTA       << 
141         default 0                              << 
142         help                                   << 
143           The base address of the ns16550 comp << 
144           debug information from the early sta << 
145                                                << 
146           This is only used if non-zero.       << 
147                                                << 
148 config MIPS_CPS_NS16550_SHIFT                  << 
149         int "UART Register Shift"              << 
150         default 0                              << 
151         help                                   << 
152           The number of bits to shift ns16550  << 
153           form their addresses. That is, log b << 
154           adjacent ns16550 registers in the sy << 
155                                                << 
156 config MIPS_CPS_NS16550_WIDTH                  << 
157         int "UART Register Width"              << 
158         default 1                              << 
159         help                                   << 
160           ns16550 registers width. UART regist << 
161           selected in accordance with this par << 
162           4 UART registers will be accessed by << 
163           instructions respectively. Any value << 
164           lb/sb instructions.                  << 
165                                                    31 
166 endif # MIPS_CPS_NS16550_BOOL                  !!  32 config 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.
                                                      

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