Re: [PATCH v1 1/3] x86/cpufeatures: Add low performance CRC32C instruction CPU feature

2021-01-11 Thread hpa
" LFENCE in >kernel entry SWAPGS path */ >> #define X86_FEATURE_SPLIT_LOCK_DETECT (11*32+ 6) /* #AC for split >lock */ >> #define X86_FEATURE_PER_THREAD_MBA (11*32+ 7) /* "" Per-thread >Memory Bandwidth Allocation */ >> +#define X86_FEATURE_CRC32C (

Re: [PATCH] crypto: x86/crc32c-intel - Don't match some Zhaoxin CPUs

2020-12-21 Thread hpa
On December 21, 2020 7:01:39 PM PST, tonywwang...@zhaoxin.com wrote: >On December 22, 2020 3:27:33 AM GMT+08:00, h...@zytor.com wrote: >>On December 20, 2020 6:46:25 PM PST, tonywwang...@zhaoxin.com wrote: >>>On December 16, 2020 1:56:45 AM GMT+08:00, Eric Biggers >>> wrote: On Tue, Dec 15, 202

Re: [PATCH] crypto: x86/crc32c-intel - Don't match some Zhaoxin CPUs

2020-12-21 Thread hpa
On December 20, 2020 6:46:25 PM PST, tonywwang...@zhaoxin.com wrote: >On December 16, 2020 1:56:45 AM GMT+08:00, Eric Biggers > wrote: >>On Tue, Dec 15, 2020 at 10:15:29AM +0800, Tony W Wang-oc wrote: >>> >>> On 15/12/2020 04:41, Eric Biggers wrote: >>> > On Mon, Dec 14, 2020 at 10:28:19AM +0800,

Re: [PATCH 3/7] x86, LLVM: suppress clang warnings about unaligned accesses

2017-03-17 Thread hpa
On March 16, 2017 5:15:16 PM PDT, Michael Davidson wrote: >Suppress clang warnings about potential unaliged accesses >to members in packed structs. This gets rid of almost 10,000 >warnings about accesses to the ring 0 stack pointer in the TSS. > >Signed-off-by: Michael Davidson >--- > arch/x86/Ma

Re: [PATCH 6/7] md/raid10, LLVM: get rid of variable length array

2017-03-17 Thread hpa
On March 17, 2017 12:27:46 PM PDT, Peter Zijlstra wrote: >On Fri, Mar 17, 2017 at 11:52:01AM -0700, Michael Davidson wrote: >> On Fri, Mar 17, 2017 at 5:44 AM, Peter Zijlstra > wrote: >> > >> > Be that as it may; what you construct above is disgusting. Surely >the >> > code can be refactored to no