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b2441318 | 1 | # SPDX-License-Identifier: GPL-2.0 |
1da177e4 LT |
2 | |
3 | choice | |
4 | prompt "Physical memory granularity" | |
5 | default IA64_GRANULE_64MB | |
6 | ||
7 | config IA64_GRANULE_16MB | |
8 | bool "16MB" | |
9 | help | |
10 | IA-64 identity-mapped regions use a large page size called "granules". | |
11 | ||
12 | Select "16MB" for a small granule size. | |
13 | Select "64MB" for a large granule size. This is the current default. | |
14 | ||
15 | config IA64_GRANULE_64MB | |
16 | bool "64MB" | |
df41017e | 17 | depends on BROKEN |
1da177e4 LT |
18 | |
19 | endchoice | |
20 | ||
21 | config IA64_PRINT_HAZARDS | |
22 | bool "Print possible IA-64 dependency violations to console" | |
23 | depends on DEBUG_KERNEL | |
24 | help | |
25 | Selecting this option prints more information for Illegal Dependency | |
26 | Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW), | |
27 | or Write-after-Read (WAR) violations. This option is ignored if you | |
28 | are compiling for an Itanium A step processor | |
29 | (CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y. | |
30 | ||
31 | config DISABLE_VHPT | |
32 | bool "Disable VHPT" | |
33 | depends on DEBUG_KERNEL | |
34 | help | |
35 | The Virtual Hash Page Table (VHPT) enhances virtual address | |
36 | translation performance. Normally you want the VHPT active but you | |
37 | can select this option to disable the VHPT for debugging. If you're | |
38 | unsure, answer N. | |
39 | ||
40 | config IA64_DEBUG_CMPXCHG | |
41 | bool "Turn on compare-and-exchange bug checking (slow!)" | |
42 | depends on DEBUG_KERNEL | |
43 | help | |
44 | Selecting this option turns on bug checking for the IA-64 | |
45 | compare-and-exchange instructions. This is slow! Itaniums | |
46 | from step B3 or later don't have this problem. If you're unsure, | |
47 | select N. | |
48 | ||
49 | config IA64_DEBUG_IRQ | |
50 | bool "Turn on irq debug checks (slow!)" | |
51 | depends on DEBUG_KERNEL | |
52 | help | |
53 | Selecting this option turns on bug checking for the IA-64 irq_save | |
54 | and restore instructions. It's useful for tracking down spinlock | |
55 | problems, but slow! If you're unsure, select N. |