VisionFive2 Linux kernel

b24413180f560 (Greg Kroah-Hartman 2017-11-01 15:07:57 +0100  1) # SPDX-License-Identifier: GPL-2.0
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  2) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  3) choice
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  4) 	prompt "Physical memory granularity"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  5) 	default IA64_GRANULE_64MB
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  6) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  7) config IA64_GRANULE_16MB
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  8) 	bool "16MB"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700  9) 	help
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 10) 	  IA-64 identity-mapped regions use a large page size called "granules".
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 11) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 12) 	  Select "16MB" for a small granule size.
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 13) 	  Select "64MB" for a large granule size.  This is the current default.
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 14) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 15) config IA64_GRANULE_64MB
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 16) 	bool "64MB"
df41017eafd26 (Christoph Hellwig  2019-08-13 09:25:12 +0200 17) 	depends on BROKEN
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 18) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 19) endchoice
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 20) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 21) config IA64_PRINT_HAZARDS
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 22) 	bool "Print possible IA-64 dependency violations to console"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 23) 	depends on DEBUG_KERNEL
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 24) 	help
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 25) 	  Selecting this option prints more information for Illegal Dependency
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 26) 	  Faults, that is, for Read-after-Write (RAW), Write-after-Write (WAW),
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 27) 	  or Write-after-Read (WAR) violations.  This option is ignored if you
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 28) 	  are compiling for an Itanium A step processor
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 29) 	  (CONFIG_ITANIUM_ASTEP_SPECIFIC).  If you're unsure, select Y.
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 30) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 31) config DISABLE_VHPT
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 32) 	bool "Disable VHPT"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 33) 	depends on DEBUG_KERNEL
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 34) 	help
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 35) 	  The Virtual Hash Page Table (VHPT) enhances virtual address
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 36) 	  translation performance.  Normally you want the VHPT active but you
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 37) 	  can select this option to disable the VHPT for debugging.  If you're
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 38) 	  unsure, answer N.
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 39) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 40) config IA64_DEBUG_CMPXCHG
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 41) 	bool "Turn on compare-and-exchange bug checking (slow!)"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 42) 	depends on DEBUG_KERNEL
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 43) 	help
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 44) 	  Selecting this option turns on bug checking for the IA-64
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 45) 	  compare-and-exchange instructions.  This is slow!  Itaniums
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 46) 	  from step B3 or later don't have this problem. If you're unsure,
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 47) 	  select N.
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 48) 
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 49) config IA64_DEBUG_IRQ
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 50) 	bool "Turn on irq debug checks (slow!)"
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 51) 	depends on DEBUG_KERNEL
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 52) 	help
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 53) 	  Selecting this option turns on bug checking for the IA-64 irq_save
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 54) 	  and restore instructions.  It's useful for tracking down spinlock
^1da177e4c3f4 (Linus Torvalds     2005-04-16 15:20:36 -0700 55) 	  problems, but slow!  If you're unsure, select N.