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MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips

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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>
This commit is contained in:
Paul Burton
2016-05-06 14:36:23 +01:00
committed by Ralf Baechle
parent f1b711c638
commit 4edf00a46b
10 changed files with 92 additions and 61 deletions
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10
arch/mips/include/asm/cpu-info.h
View File

@@ -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 */