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author | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-28 08:03:12 -0400 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-10-28 08:03:12 -0400 |
commit | e34eb39c1c791fe79da6aae0d9057f0c74c2f0ed (patch) | |
tree | cfc27d987b2c888f189f35326702220b694596cc /Documentation/kernel-parameters.txt | |
parent | 396e6e49c58bb23d1814d3c240c736c9f01523c5 (diff) | |
parent | 910b2c5122ab787179a790ca1dec616fc80f0173 (diff) |
Merge branch 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
* 'x86-cpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, amd: Include linux/elf.h since we use stuff from asm/elf.h
x86: cache_info: Update calculation of AMD L3 cache indices
x86: cache_info: Kill the atomic allocation in amd_init_l3_cache()
x86: cache_info: Kill the moronic shadow struct
x86: cache_info: Remove bogus free of amd_l3_cache data
x86, amd: Include elf.h explicitly, prepare the code for the module.h split
x86-32, amd: Move va_align definition to unbreak 32-bit build
x86, amd: Move BSP code to cpu_dev helper
x86: Add a BSP cpu_dev helper
x86, amd: Avoid cache aliasing penalties on AMD family 15h
Diffstat (limited to 'Documentation/kernel-parameters.txt')
-rw-r--r-- | Documentation/kernel-parameters.txt | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index a8ba119a4d53..6afd091bc1f8 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt | |||
@@ -307,6 +307,19 @@ bytes respectively. Such letter suffixes can also be entirely omitted. | |||
307 | behaviour to be specified. Bit 0 enables warnings, | 307 | behaviour to be specified. Bit 0 enables warnings, |
308 | bit 1 enables fixups, and bit 2 sends a segfault. | 308 | bit 1 enables fixups, and bit 2 sends a segfault. |
309 | 309 | ||
310 | align_va_addr= [X86-64] | ||
311 | Align virtual addresses by clearing slice [14:12] when | ||
312 | allocating a VMA at process creation time. This option | ||
313 | gives you up to 3% performance improvement on AMD F15h | ||
314 | machines (where it is enabled by default) for a | ||
315 | CPU-intensive style benchmark, and it can vary highly in | ||
316 | a microbenchmark depending on workload and compiler. | ||
317 | |||
318 | 1: only for 32-bit processes | ||
319 | 2: only for 64-bit processes | ||
320 | on: enable for both 32- and 64-bit processes | ||
321 | off: disable for both 32- and 64-bit processes | ||
322 | |||
310 | amd_iommu= [HW,X86-84] | 323 | amd_iommu= [HW,X86-84] |
311 | Pass parameters to the AMD IOMMU driver in the system. | 324 | Pass parameters to the AMD IOMMU driver in the system. |
312 | Possible values are: | 325 | Possible values are: |