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authorLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 19:59:32 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2012-12-11 19:59:32 -0800
commit743aa456c1834f76982af44e8b71d1a0b2a82e21 (patch)
treef240782115da675496c8d9d5328722933d0ef601 /arch/x86/mm
parenta05a4e24dcd73c2de4ef3f8d520b8bbb44570c60 (diff)
parent11af32b69ef7ee64c7d8848cad71a6f3749d9e37 (diff)
Merge branch 'x86-nuke386-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull "Nuke 386-DX/SX support" from Ingo Molnar: "This tree removes ancient-386-CPUs support and thus zaps quite a bit of complexity: 24 files changed, 56 insertions(+), 425 deletions(-) ... which complexity has plagued us with extra work whenever we wanted to change SMP primitives, for years. Unfortunately there's a nostalgic cost: your old original 386 DX33 system from early 1991 won't be able to boot modern Linux kernels anymore. Sniff." I'm not sentimental. Good riddance. * 'x86-nuke386-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86, 386 removal: Document Nx586 as a 386 and thus unsupported x86, cleanups: Simplify sync_core() in the case of no CPUID x86, 386 removal: Remove CONFIG_X86_POPAD_OK x86, 386 removal: Remove CONFIG_X86_WP_WORKS_OK x86, 386 removal: Remove CONFIG_INVLPG x86, 386 removal: Remove CONFIG_BSWAP x86, 386 removal: Remove CONFIG_XADD x86, 386 removal: Remove CONFIG_CMPXCHG x86, 386 removal: Remove CONFIG_M386 from Kconfig
Diffstat (limited to 'arch/x86/mm')
-rw-r--r--arch/x86/mm/init_32.c5
-rw-r--r--arch/x86/mm/tlb.c8
2 files changed, 4 insertions, 9 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c
index 11a58001b4ce..745d66b843c8 100644
--- a/arch/x86/mm/init_32.c
+++ b/arch/x86/mm/init_32.c
@@ -715,10 +715,7 @@ static void __init test_wp_bit(void)
if (!boot_cpu_data.wp_works_ok) {
printk(KERN_CONT "No.\n");
-#ifdef CONFIG_X86_WP_WORKS_OK
- panic(
- "This kernel doesn't support CPU's with broken WP. Recompile it for a 386!");
-#endif
+ panic("Linux doesn't support CPUs with broken WP.");
} else {
printk(KERN_CONT "Ok.\n");
}
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 60f926cd8b0e..13a6b29e2e5d 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -104,7 +104,7 @@ static void flush_tlb_func(void *info)
return;
if (this_cpu_read(cpu_tlbstate.state) == TLBSTATE_OK) {
- if (f->flush_end == TLB_FLUSH_ALL || !cpu_has_invlpg)
+ if (f->flush_end == TLB_FLUSH_ALL)
local_flush_tlb();
else if (!f->flush_end)
__flush_tlb_single(f->flush_start);
@@ -337,10 +337,8 @@ static const struct file_operations fops_tlbflush = {
static int __cpuinit create_tlb_flushall_shift(void)
{
- if (cpu_has_invlpg) {
- debugfs_create_file("tlb_flushall_shift", S_IRUSR | S_IWUSR,
- arch_debugfs_dir, NULL, &fops_tlbflush);
- }
+ debugfs_create_file("tlb_flushall_shift", S_IRUSR | S_IWUSR,
+ arch_debugfs_dir, NULL, &fops_tlbflush);
return 0;
}
late_initcall(create_tlb_flushall_shift);