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| author | Paul Burton | 2016-05-06 15:36:24 +0200 |
|---|---|---|
| committer | Ralf Baechle | 2016-05-13 14:02:20 +0200 |
| commit | 2db003a5ddee986d4bc67c069ee3aa1b1b320f1d (patch) | |
| tree | cb96d86dd67b23b02a31669ec4c323c0b00f0be5 /arch/mips/Kconfig | |
| parent | MIPS: Retrieve ASID masks using function accepting struct cpuinfo_mips (diff) | |
| download | kernel-qcow2-linux-2db003a5ddee986d4bc67c069ee3aa1b1b320f1d.tar.gz kernel-qcow2-linux-2db003a5ddee986d4bc67c069ee3aa1b1b320f1d.tar.xz kernel-qcow2-linux-2db003a5ddee986d4bc67c069ee3aa1b1b320f1d.zip | |
MIPS: Support extended ASIDs
Add support for extended ASIDs as determined by the Config4.AE bit.
Since the only supported CPUs known to implement this are Netlogic XLP
and MIPS I6400, select this variable ASID support based upon
CONFIG_CPU_XLP and CONFIG_CPU_MIPSR6.
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Jayachandran C. <jchandra@broadcom.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/13211/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/Kconfig')
| -rw-r--r-- | arch/mips/Kconfig | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 0cab0da2ab55..5cc5b621ae69 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -1706,6 +1706,7 @@ config CPU_XLP select CPU_HAS_PREFETCH select CPU_MIPSR2 select CPU_SUPPORTS_HUGEPAGES + select MIPS_ASID_BITS_VARIABLE help Netlogic Microsystems XLP processors. endchoice @@ -2001,6 +2002,7 @@ config CPU_MIPSR6 bool default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 select HAVE_ARCH_BITREVERSE + select MIPS_ASID_BITS_VARIABLE select MIPS_SPRAM config EVA @@ -2457,9 +2459,13 @@ config MIPS_ASID_SHIFT config MIPS_ASID_BITS int + default 0 if MIPS_ASID_BITS_VARIABLE default 6 if CPU_R3000 || CPU_TX39XX default 8 +config MIPS_ASID_BITS_VARIABLE + bool + # # - Highmem only makes sense for the 32-bit kernel. # - The current highmem code will only work properly on physically indexed |