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MIPS: Disallow CPU_SUPPORTS_HUGEPAGES for XPA,EVA
In preparation for 32-bit MIPS huge page support. EVA,XPA are extended-addressing modes for 32-bit MIPS systems. Because huge pages aren't currently supported in 32-bit MIPS, this doesn't take any features away from EVA,XPA-enabled systems. However, the soon-to- come 32-bit MIPS huge page support doesn't yet support them. This also disables CPU_SUPPORTS_HUGEPAGES for the small number of 32-bit MIPS CPUs from Alchemy/Netlogic that support a custom 36-bit extended addressing. It's unknown if they even support huge pages in hardware. Signed-off-by: Daniel Silsby <dansilsby@gmail.com> Signed-off-by: Paul Cercueil <paul@crapouillou.net> Signed-off-by: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: od@zcrc.me Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org
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@ -2110,6 +2110,7 @@ config CPU_SUPPORTS_ADDRWINCFG
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bool
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config CPU_SUPPORTS_HUGEPAGES
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bool
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depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
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config CPU_SUPPORTS_UNCACHED_ACCELERATED
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bool
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config MIPS_PGD_C0_CONTEXT
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