lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

x86, cpu: Clean up and unify the NOP selection infrastructure

Browse Source 
Clean up and unify the NOP selection infrastructure:

- Make the atomic 5-byte NOP a part of the selection system.
- Pick NOPs once during early boot and then be done with it.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Jason Baron <jbaron@redhat.com>
Link: http://lkml.kernel.org/r/1303166160-10315-3-git-send-email-hpa@linux.intel.com
This commit is contained in:
H. Peter Anvin
2011-04-18 15:19:51 -07:00
parent b1e7734f02
commit dc326fca2b
6 changed files with 191 additions and 162 deletions
Download Patch File Download Diff File Expand all files Collapse all files

6
arch/x86/kernel/setup.c
View File

@@ -691,8 +691,6 @@ early_param("reservelow", parse_reservelow);
void __init setup_arch(char **cmdline_p)
{
unsigned long flags;
#ifdef CONFIG_X86_32
memcpy(&boot_cpu_data, &new_cpu_data, sizeof(new_cpu_data));
visws_early_detect();
@@ -1036,9 +1034,7 @@ void __init setup_arch(char **cmdline_p)
mcheck_init();
local_irq_save(flags);
arch_init_ideal_nop5();
local_irq_restore(flags);
arch_init_ideal_nops();
}
#ifdef CONFIG_X86_32