diff options
| author | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-28 11:50:26 -0800 |
|---|---|---|
| committer | H. Peter Anvin <hpa@linux.intel.com> | 2012-11-29 13:23:02 -0800 |
| commit | e5bb8ad862a97a0facc83f3b81731de919fec6ad (patch) | |
| tree | f3778e2c0530ed51bb686d426d2af12491136111 /arch/x86/kernel/cpu/bugs.c | |
| parent | 7ac468b1300f35143a9b5b100e3970ca7ae1d9b8 (diff) | |
| download | linux-e5bb8ad862a97a0facc83f3b81731de919fec6ad.tar.bz2 | |
x86, 386 removal: Remove CONFIG_BSWAP
All 486+ CPUs support BSWAP, so remove the fallback 386 support
code.
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Link: http://lkml.kernel.org/r/1354132230-21854-5-git-send-email-hpa@linux.intel.com
Diffstat (limited to 'arch/x86/kernel/cpu/bugs.c')
| -rw-r--r-- | arch/x86/kernel/cpu/bugs.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c index d0e910da16c5..0cd07ccdf380 100644 --- a/arch/x86/kernel/cpu/bugs.c +++ b/arch/x86/kernel/cpu/bugs.c @@ -136,24 +136,15 @@ static void __init check_popad(void) /* * Check whether we are able to run this kernel safely on SMP. * - * - In order to run on a i386, we need to be compiled for i386 - * (for due to lack of "invlpg" and working WP on a i386) + * - i386 is no longer supported. * - In order to run on anything without a TSC, we need to be * compiled for a i486. */ static void __init check_config(void) { -/* - * We'd better not be a i386 if we're configured to use some - * i486+ only features! (WP works in supervisor mode and the - * new "invlpg" and "bswap" instructions) - */ -#if defined(CONFIG_X86_WP_WORKS_OK) || defined(CONFIG_X86_INVLPG) || \ - defined(CONFIG_X86_BSWAP) - if (boot_cpu_data.x86 == 3) + if (boot_cpu_data.x86 < 4) panic("Kernel requires i486+ for 'invlpg' and other features"); -#endif } |