| # SPDX-License-Identifier: GPL-2.0 |
| menu "Kernel hacking" |
| |
| source "lib/Kconfig.debug" |
| |
| choice |
| prompt "Physical memory granularity" |
| default IA64_GRANULE_64MB |
| |
| config IA64_GRANULE_16MB |
| bool "16MB" |
| help |
| IA-64 identity-mapped regions use a large page size called "granules". |
| |
| Select "16MB" for a small granule size. |
| Select "64MB" for a large granule size. This is the current default. |
| |
| config IA64_GRANULE_64MB |
| bool "64MB" |
| depends on !(IA64_GENERIC || IA64_HP_ZX1 || IA64_HP_ZX1_SWIOTLB || IA64_SGI_SN2) |
| |
| endchoice |
| |
| config IA64_PRINT_HAZARDS |
| bool "Print possible IA-64 dependency violations to console" |
| depends on DEBUG_KERNEL |
| help |
| Selecting this option prints more information for Illegal Dependency |
| Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW), |
| or Write-after-Read (WAR) violations. This option is ignored if you |
| are compiling for an Itanium A step processor |
| (CONFIG_ITANIUM_ASTEP_SPECIFIC). If you're unsure, select Y. |
| |
| config DISABLE_VHPT |
| bool "Disable VHPT" |
| depends on DEBUG_KERNEL |
| help |
| The Virtual Hash Page Table (VHPT) enhances virtual address |
| translation performance. Normally you want the VHPT active but you |
| can select this option to disable the VHPT for debugging. If you're |
| unsure, answer N. |
| |
| config IA64_DEBUG_CMPXCHG |
| bool "Turn on compare-and-exchange bug checking (slow!)" |
| depends on DEBUG_KERNEL |
| help |
| Selecting this option turns on bug checking for the IA-64 |
| compare-and-exchange instructions. This is slow! Itaniums |
| from step B3 or later don't have this problem. If you're unsure, |
| select N. |
| |
| config IA64_DEBUG_IRQ |
| bool "Turn on irq debug checks (slow!)" |
| depends on DEBUG_KERNEL |
| help |
| Selecting this option turns on bug checking for the IA-64 irq_save |
| and restore instructions. It's useful for tracking down spinlock |
| problems, but slow! If you're unsure, select N. |
| |
| endmenu |
