Commit | Line | Data |
---|---|---|
14cf11af PM |
1 | menu "Kernel hacking" |
2 | ||
3 | source "lib/Kconfig.debug" | |
4 | ||
ba55bd74 ME |
5 | config PPC_DISABLE_WERROR |
6 | bool "Don't build arch/powerpc code with -Werror" | |
7 | default n | |
8 | help | |
9 | This option tells the compiler NOT to build the code under | |
10 | arch/powerpc with the -Werror flag (which means warnings | |
11 | are treated as errors). | |
12 | ||
13 | Only enable this if you are hitting a build failure in the | |
14 | arch/powerpc code caused by a warning, and you don't feel | |
15 | inclined to fix it. | |
16 | ||
17 | config PPC_WERROR | |
18 | bool | |
19 | depends on !PPC_DISABLE_WERROR | |
20 | default y | |
21 | ||
f1e7c202 ME |
22 | config STRICT_MM_TYPECHECKS |
23 | bool "Do extra type checking on mm types" | |
24 | default n | |
25 | help | |
26 | This option turns on extra type checking for some mm related types. | |
27 | ||
28 | If you don't know what this means, say N. | |
29 | ||
c4d04be1 JB |
30 | config PRINT_STACK_DEPTH |
31 | int "Stack depth to print" if DEBUG_KERNEL | |
32 | default 64 | |
33 | help | |
34 | This option allows you to set the stack depth that the kernel | |
35 | prints in stack traces. This can be useful if your display is | |
36 | too small and stack traces cause important information to | |
37 | scroll off the screen. | |
38 | ||
57852a85 MK |
39 | config HCALL_STATS |
40 | bool "Hypervisor call instrumentation" | |
c8cd093a | 41 | depends on PPC_PSERIES && DEBUG_FS && TRACEPOINTS |
57852a85 MK |
42 | help |
43 | Adds code to keep track of the number of hypervisor calls made and | |
3dde6ad8 | 44 | the amount of time spent in hypervisor calls. Wall time spent in |
57852a85 MK |
45 | each call is always calculated, and if available CPU cycles spent |
46 | are also calculated. A directory named hcall_inst is added at the | |
47 | root of the debugfs filesystem. Within the hcall_inst directory | |
48 | are files that contain CPU specific call statistics. | |
49 | ||
50 | This option will add a small amount of overhead to all hypervisor | |
51 | calls. | |
52 | ||
80947e7c GU |
53 | config PPC_EMULATED_STATS |
54 | bool "Emulated instructions tracking" | |
55 | depends on DEBUG_FS | |
56 | help | |
57 | Adds code to keep track of the number of instructions that are | |
58 | emulated by the in-kernel emulator. Counters for the various classes | |
59 | of emulated instructions are available under | |
60 | powerpc/emulated_instructions/ in the root of the debugfs file | |
61 | system. Optionally (controlled by | |
62 | powerpc/emulated_instructions/do_warn in debugfs), rate-limited | |
63 | warnings can be printed to the console when instructions are | |
64 | emulated. | |
65 | ||
ae0dc736 | 66 | config CODE_PATCHING_SELFTEST |
759fb100 | 67 | bool "Run self-tests of the code-patching code" |
ae0dc736 ME |
68 | depends on DEBUG_KERNEL |
69 | default n | |
70 | ||
362e7701 | 71 | config FTR_FIXUP_SELFTEST |
759fb100 | 72 | bool "Run self-tests of the feature-fixup code" |
362e7701 ME |
73 | depends on DEBUG_KERNEL |
74 | default n | |
75 | ||
7e302869 | 76 | config MSI_BITMAP_SELFTEST |
759fb100 | 77 | bool "Run self-tests of the MSI bitmap code" |
7e302869 ME |
78 | depends on DEBUG_KERNEL |
79 | default n | |
80 | ||
14cf11af PM |
81 | config XMON |
82 | bool "Include xmon kernel debugger" | |
17ce452f | 83 | depends on DEBUG_KERNEL |
14cf11af PM |
84 | help |
85 | Include in-kernel hooks for the xmon kernel monitor/debugger. | |
86 | Unless you are intending to debug the kernel, say N here. | |
ff64208d PM |
87 | Make sure to enable also CONFIG_BOOTX_TEXT on Macs. Otherwise |
88 | nothing will appear on the screen (xmon writes directly to the | |
89 | framebuffer memory). | |
90 | The cmdline option 'xmon' or 'xmon=early' will drop into xmon | |
91 | very early during boot. 'xmon=on' will just enable the xmon | |
92 | debugger hooks. 'xmon=off' will disable the debugger hooks | |
93 | if CONFIG_XMON_DEFAULT is set. | |
26c8af5f OH |
94 | xmon will print a backtrace on the very first invocation. |
95 | 'xmon=nobt' will disable this autobacktrace. | |
ff64208d PM |
96 | |
97 | config XMON_DEFAULT | |
98 | bool "Enable xmon by default" | |
99 | depends on XMON | |
100 | help | |
101 | xmon is normally disabled unless booted with 'xmon=on'. | |
102 | Use 'xmon=off' to disable xmon init during runtime. | |
103 | ||
e0426047 ME |
104 | config XMON_DISASSEMBLY |
105 | bool "Include disassembly support in xmon" | |
106 | depends on XMON | |
107 | default y | |
108 | help | |
109 | Include support for disassembling in xmon. You probably want | |
110 | to say Y here, unless you're building for a memory-constrained | |
111 | system. | |
112 | ||
17ce452f JW |
113 | config DEBUGGER |
114 | bool | |
115 | depends on KGDB || XMON | |
116 | default y | |
117 | ||
14cf11af PM |
118 | config BDI_SWITCH |
119 | bool "Include BDI-2000 user context switcher" | |
ff64208d | 120 | depends on DEBUG_KERNEL && PPC32 |
14cf11af PM |
121 | help |
122 | Include in-kernel support for the Abatron BDI2000 debugger. | |
123 | Unless you are intending to debug the kernel with one of these | |
124 | machines, say N here. | |
125 | ||
126 | config BOOTX_TEXT | |
127 | bool "Support for early boot text console (BootX or OpenFirmware only)" | |
52d99627 | 128 | depends on PPC_BOOK3S |
14cf11af PM |
129 | help |
130 | Say Y here to see progress messages from the boot firmware in text | |
131 | mode. Requires either BootX or Open Firmware. | |
132 | ||
485a2d54 ME |
133 | config PPC_EARLY_DEBUG |
134 | bool "Early debugging (dangerous)" | |
7ee17466 BH |
135 | help |
136 | Say Y to enable some early debugging facilities that may be available | |
137 | for your processor/board combination. Those facilities are hacks | |
138 | intended to debug problems early during boot, this should not be | |
139 | enabled in a production kernel. | |
140 | Note that enabling this will also cause the kernel default log level | |
141 | to be pushed to max automatically very early during boot | |
485a2d54 | 142 | |
296167ae | 143 | choice |
485a2d54 ME |
144 | prompt "Early debugging console" |
145 | depends on PPC_EARLY_DEBUG | |
296167ae | 146 | help |
485a2d54 ME |
147 | Use the selected console for early debugging. Careful, if you |
148 | enable debugging for the wrong type of machine your kernel | |
149 | _will not boot_. | |
296167ae | 150 | |
071df942 AP |
151 | config PPC_EARLY_DEBUG_BOOTX |
152 | bool "BootX or OpenFirmware" | |
153 | depends on BOOTX_TEXT | |
154 | help | |
155 | Select this to enable early debugging for a machine using BootX | |
156 | or OpenFirmware. | |
157 | ||
296167ae ME |
158 | config PPC_EARLY_DEBUG_LPAR |
159 | bool "LPAR HV Console" | |
160 | depends on PPC_PSERIES | |
161 | help | |
162 | Select this to enable early debugging for a machine with a HVC | |
163 | console on vterm 0. | |
164 | ||
4d2bb3f5 BH |
165 | config PPC_EARLY_DEBUG_LPAR_HVSI |
166 | bool "LPAR HVSI Console" | |
167 | depends on PPC_PSERIES | |
168 | help | |
169 | Select this to enable early debugging for a machine with a HVSI | |
170 | console on a specified vterm. | |
171 | ||
296167ae ME |
172 | config PPC_EARLY_DEBUG_G5 |
173 | bool "Apple G5" | |
174 | depends on PPC_PMAC64 | |
175 | help | |
176 | Select this to enable early debugging for Apple G5 machines. | |
177 | ||
cc46bb98 | 178 | config PPC_EARLY_DEBUG_RTAS_PANEL |
296167ae ME |
179 | bool "RTAS Panel" |
180 | depends on PPC_RTAS | |
181 | help | |
182 | Select this to enable early debugging via the RTAS panel. | |
183 | ||
cc46bb98 ME |
184 | config PPC_EARLY_DEBUG_RTAS_CONSOLE |
185 | bool "RTAS Console" | |
186 | depends on PPC_RTAS | |
187 | select UDBG_RTAS_CONSOLE | |
188 | help | |
189 | Select this to enable early debugging via the RTAS console. | |
190 | ||
296167ae ME |
191 | config PPC_EARLY_DEBUG_MAPLE |
192 | bool "Maple real mode" | |
193 | depends on PPC_MAPLE | |
194 | help | |
195 | Select this to enable early debugging for Maple. | |
196 | ||
39c870d5 OJ |
197 | config PPC_EARLY_DEBUG_PAS_REALMODE |
198 | bool "PA Semi real mode" | |
199 | depends on PPC_PASEMI | |
200 | help | |
201 | Select this to enable early debugging for PA Semi. | |
202 | Output will be on UART0. | |
203 | ||
d9b55a03 DG |
204 | config PPC_EARLY_DEBUG_44x |
205 | bool "Early serial debugging for IBM/AMCC 44x CPUs" | |
b2677b8d | 206 | depends on 44x |
d9b55a03 DG |
207 | help |
208 | Select this to enable early debugging for IBM 44x chips via the | |
6bbc5476 HB |
209 | inbuilt serial port. If you enable this, ensure you set |
210 | PPC_EARLY_DEBUG_44x_PHYSLOW below to suit your target board. | |
d9b55a03 | 211 | |
9dae8afd BH |
212 | config PPC_EARLY_DEBUG_40x |
213 | bool "Early serial debugging for IBM/AMCC 40x CPUs" | |
214 | depends on 40x | |
215 | help | |
216 | Select this to enable early debugging for IBM 40x chips via the | |
217 | inbuilt serial port. This works on chips with a 16550 compatible | |
218 | UART. Xilinx chips with uartlite cannot use this option. | |
219 | ||
c374e00e SW |
220 | config PPC_EARLY_DEBUG_CPM |
221 | bool "Early serial debugging for Freescale CPM-based serial ports" | |
222 | depends on SERIAL_CPM | |
223 | select PIN_TLB if PPC_8xx | |
224 | help | |
225 | Select this to enable early debugging for Freescale chips | |
226 | using a CPM-based serial port. This assumes that the bootwrapper | |
227 | has run, and set up the CPM in a particular way. | |
228 | ||
d1d56f8c AH |
229 | config PPC_EARLY_DEBUG_USBGECKO |
230 | bool "Early debugging through the USB Gecko adapter" | |
231 | depends on GAMECUBE_COMMON | |
232 | select USBGECKO_UDBG | |
233 | help | |
234 | Select this to enable early debugging for Nintendo GameCube/Wii | |
235 | consoles via an external USB Gecko adapter. | |
236 | ||
c26afe9e HM |
237 | config PPC_EARLY_DEBUG_PS3GELIC |
238 | bool "Early debugging through the PS3 Ethernet port" | |
239 | depends on PPC_PS3 | |
240 | select PS3GELIC_UDBG | |
241 | help | |
242 | Select this to enable early debugging for the PlayStation3 via | |
243 | UDP broadcasts sent out through the Ethernet port. | |
244 | ||
daea1175 BH |
245 | config PPC_EARLY_DEBUG_OPAL_RAW |
246 | bool "OPAL raw console" | |
247 | depends on HVC_OPAL | |
248 | help | |
249 | Select this to enable early debugging for the PowerNV platform | |
250 | using a "raw" console | |
251 | ||
252 | config PPC_EARLY_DEBUG_OPAL_HVSI | |
253 | bool "OPAL hvsi console" | |
254 | depends on HVC_OPAL | |
255 | help | |
256 | Select this to enable early debugging for the PowerNV platform | |
257 | using an "hvsi" console | |
258 | ||
30650239 AP |
259 | config PPC_EARLY_DEBUG_MEMCONS |
260 | bool "In memory console" | |
261 | help | |
262 | Select this to enable early debugging using an in memory console. | |
263 | This console provides input and output buffers stored within the | |
264 | kernel BSS and should be safe to select on any system. A debugger | |
265 | can then be used to read kernel output or send input to the console. | |
296167ae ME |
266 | endchoice |
267 | ||
30650239 AP |
268 | config PPC_MEMCONS_OUTPUT_SIZE |
269 | int "In memory console output buffer size" | |
270 | depends on PPC_EARLY_DEBUG_MEMCONS | |
271 | default 4096 | |
272 | help | |
273 | Selects the size of the output buffer (in bytes) of the in memory | |
274 | console. | |
275 | ||
276 | config PPC_MEMCONS_INPUT_SIZE | |
277 | int "In memory console input buffer size" | |
278 | depends on PPC_EARLY_DEBUG_MEMCONS | |
279 | default 128 | |
280 | help | |
281 | Selects the size of the input buffer (in bytes) of the in memory | |
282 | console. | |
283 | ||
daea1175 BH |
284 | config PPC_EARLY_DEBUG_OPAL |
285 | def_bool y | |
286 | depends on PPC_EARLY_DEBUG_OPAL_RAW || PPC_EARLY_DEBUG_OPAL_HVSI | |
287 | ||
288 | ||
4d2bb3f5 BH |
289 | config PPC_EARLY_DEBUG_HVSI_VTERMNO |
290 | hex "vterm number to use with early debug HVSI" | |
291 | depends on PPC_EARLY_DEBUG_LPAR_HVSI | |
292 | default "0x30000000" | |
293 | help | |
294 | You probably want 0x30000000 for your first serial port and | |
295 | 0x30000001 for your second one | |
296 | ||
daea1175 BH |
297 | config PPC_EARLY_DEBUG_OPAL_VTERMNO |
298 | hex "vterm number to use with OPAL early debug" | |
299 | depends on PPC_EARLY_DEBUG_OPAL | |
300 | default "0" | |
301 | help | |
302 | This correspond to which /dev/hvcN you want to use for early | |
303 | debug. | |
304 | ||
daea1175 BH |
305 | On OPAL v2, this will be 0 for network console and 1 or 2 for |
306 | the machine built-in serial ports. | |
307 | ||
d9b55a03 DG |
308 | config PPC_EARLY_DEBUG_44x_PHYSLOW |
309 | hex "Low 32 bits of early debug UART physical address" | |
247537b9 | 310 | depends on PPC_EARLY_DEBUG_44x |
d9b55a03 | 311 | default "0x40000200" |
6bbc5476 HB |
312 | help |
313 | You probably want 0x40000200 for ebony boards and | |
314 | 0x40000300 for taishan | |
d9b55a03 DG |
315 | |
316 | config PPC_EARLY_DEBUG_44x_PHYSHIGH | |
317 | hex "EPRN of early debug UART physical address" | |
247537b9 | 318 | depends on PPC_EARLY_DEBUG_44x |
d9b55a03 DG |
319 | default "0x1" |
320 | ||
9dae8afd BH |
321 | config PPC_EARLY_DEBUG_40x_PHYSADDR |
322 | hex "Early debug UART physical address" | |
323 | depends on PPC_EARLY_DEBUG_40x | |
324 | default "0xef600300" | |
325 | ||
c374e00e SW |
326 | config PPC_EARLY_DEBUG_CPM_ADDR |
327 | hex "CPM UART early debug transmit descriptor address" | |
328 | depends on PPC_EARLY_DEBUG_CPM | |
15f8c604 | 329 | default "0xfa202008" if PPC_EP88XC |
c2dd3529 | 330 | default "0xf0001ff8" if CPM2 |
15f8c604 | 331 | default "0xff002008" if CPM1 |
c374e00e SW |
332 | help |
333 | This specifies the address of the transmit descriptor | |
334 | used for early debug output. Because it is needed before | |
335 | platform probing is done, all platforms selected must | |
336 | share the same address. | |
337 | ||
d6b9a81b AB |
338 | config FAIL_IOMMU |
339 | bool "Fault-injection capability for IOMMU" | |
340 | depends on FAULT_INJECTION | |
341 | help | |
342 | Provide fault-injection capability for IOMMU. Each device can | |
343 | be selectively enabled via the fail_iommu property. | |
344 | ||
345 | If you are unsure, say N. | |
346 | ||
14cf11af | 347 | endmenu |