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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | menu "Kernel hacking" |
3 | ||
4 | source "lib/Kconfig.debug" | |
5 | ||
6 | choice | |
7 | prompt "Physical memory granularity" | |
8 | default IA64_GRANULE_64MB | |
9 | ||
10 | config IA64_GRANULE_16MB | |
11 | bool "16MB" | |
12 | help | |
13 | IA-64 identity-mapped regions use a large page size called "granules". | |
14 | ||
15 | Select "16MB" for a small granule size. | |
16 | Select "64MB" for a large granule size. This is the current default. | |
17 | ||
18 | config IA64_GRANULE_64MB | |
19 | bool "64MB" | |
20 | depends on !(IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_SGI_SN2) | |
21 | ||
22 | endchoice | |
23 | ||
24 | config IA64_PRINT_HAZARDS | |
25 | bool "Print possible IA-64 dependency violations to console" | |
26 | depends on DEBUG_KERNEL | |
27 | help | |
28 | Selecting this option prints more information for Illegal Dependency | |
29 | Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW), | |
30 | or Write-after-Read (WAR) violations. This option is ignored if you | |
31 | are compiling for an Itanium A step processor | |
32 | (CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y. | |
33 | ||
34 | config DISABLE_VHPT | |
35 | bool "Disable VHPT" | |
36 | depends on DEBUG_KERNEL | |
37 | help | |
38 | The Virtual Hash Page Table (VHPT) enhances virtual address | |
39 | translation performance. Normally you want the VHPT active but you | |
40 | can select this option to disable the VHPT for debugging. If you're | |
41 | unsure, answer N. | |
42 | ||
43 | config IA64_DEBUG_CMPXCHG | |
44 | bool "Turn on compare-and-exchange bug checking (slow!)" | |
45 | depends on DEBUG_KERNEL | |
46 | help | |
47 | Selecting this option turns on bug checking for the IA-64 | |
48 | compare-and-exchange instructions. This is slow! Itaniums | |
49 | from step B3 or later don't have this problem. If you're unsure, | |
50 | select N. | |
51 | ||
52 | config IA64_DEBUG_IRQ | |
53 | bool "Turn on irq debug checks (slow!)" | |
54 | depends on DEBUG_KERNEL | |
55 | help | |
56 | Selecting this option turns on bug checking for the IA-64 irq_save | |
57 | and restore instructions. It's useful for tracking down spinlock | |
58 | problems, but slow! If you're unsure, select N. | |
59 | ||
1da177e4 | 60 | endmenu |