diff options
| author | Paul Burton <paul.burton@imgtec.com> | 2016-05-06 15:36:23 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2016-05-13 14:02:20 +0200 |
| commit | 4edf00a46bee692f62578b5280c5774f9b65a08f (patch) | |
| tree | 3536ce8de630a22e4ff20be455e95ab202bfc436 /arch/mips/include/asm/cpu-info.h | |
| parent | MIPS: KVM/locore.S: Relax noat (diff) | |
| download | linux-4edf00a46bee692f62578b5280c5774f9b65a08f.tar.xz linux-4edf00a46bee692f62578b5280c5774f9b65a08f.zip | |
MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips
In preparation for supporting variable ASID masks, retrieve ASID masks
using functions in asm/cpu-info.h which accept struct cpuinfo_mips. This
will allow those functions to determine the ASID mask based upon the CPU
in a later patch. This also allows for the r3k & r8k cases to be handled
in Kconfig, which is arguably cleaner than the previous #ifdefs.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Radim Krčmář <rkrcmar@redhat.com>
Cc: linux-mips@linux-mips.org
Cc: kvm@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/13210/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/cpu-info.h')
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index b090aa51d644..1ae26a393153 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -132,4 +132,14 @@ struct proc_cpuinfo_notifier_args { # define cpu_vpe_id(cpuinfo) ({ (void)cpuinfo; 0; }) #endif +static inline unsigned long cpu_asid_inc(void) +{ + return 1 << CONFIG_MIPS_ASID_SHIFT; +} + +static inline unsigned long cpu_asid_mask(struct cpuinfo_mips *cpuinfo) +{ + return ((1 << CONFIG_MIPS_ASID_BITS) - 1) << CONFIG_MIPS_ASID_SHIFT; +} + #endif /* __ASM_CPU_INFO_H */ |