diff options
| author | Nadav Amit <namit@vmware.com> | 2021-02-21 02:17:05 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2021-03-06 14:59:09 +0300 |
| commit | 4c1ba3923e6c8aa736e40f481a278c21b956c072 (patch) | |
| tree | 912aa178359254826259c56b0ae291efa4ac3c45 /arch/x86/include/asm/tlbflush.h | |
| parent | a32a4d8a815c4eb6dc64b8962dc13a9dfae70868 (diff) | |
| download | linux-4c1ba3923e6c8aa736e40f481a278c21b956c072.tar.xz | |
x86/mm/tlb: Unify flush_tlb_func_local() and flush_tlb_func_remote()
The unification of these two functions allows to use them in the updated
SMP infrastrucutre.
To do so, remove the reason argument from flush_tlb_func_local(), add
a member to struct tlb_flush_info that says which CPU initiated the
flush and act accordingly. Optimize the size of flush_tlb_info while we
are at it.
Unfortunately, this prevents us from using a constant tlb_flush_info for
arch_tlbbatch_flush(), but in a later stage we may be able to inline
tlb_flush_info into the IPI data, so it should not have an impact
eventually.
Signed-off-by: Nadav Amit <namit@vmware.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Dave Hansen <dave.hansen@linux.intel.com>
Link: https://lore.kernel.org/r/20210220231712.2475218-3-namit@vmware.com
Diffstat (limited to 'arch/x86/include/asm/tlbflush.h')
| -rw-r--r-- | arch/x86/include/asm/tlbflush.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/x86/include/asm/tlbflush.h b/arch/x86/include/asm/tlbflush.h index 8c87a2e0b660..a7a598af116d 100644 --- a/arch/x86/include/asm/tlbflush.h +++ b/arch/x86/include/asm/tlbflush.h @@ -201,8 +201,9 @@ struct flush_tlb_info { unsigned long start; unsigned long end; u64 new_tlb_gen; - unsigned int stride_shift; - bool freed_tables; + unsigned int initiating_cpu; + u8 stride_shift; + u8 freed_tables; }; void flush_tlb_local(void); |