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MIPS: Probe for small (1KiB) page support

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Probe Config3 for small page support. This will be useful to give clues
as to whether the PageGrain register exists.

Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/10722/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
James Hogan
2015-07-15 16:17:44 +01:00
committed by Ralf Baechle
parent 3c865dd9c1
commit aaa7be48fd
3 changed files with 7 additions and 0 deletions
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arch/mips/include/asm/cpu.h
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@@ -384,6 +384,7 @@ enum cpu_type_enum {
#define MIPS_CPU_XPA 0x2000000000ull /* CPU supports Extended Physical Addressing */
#define MIPS_CPU_CDMM 0x4000000000ull /* CPU has Common Device Memory Map */
#define MIPS_CPU_BP_GHIST 0x8000000000ull /* R12K+ Branch Prediction Global History */
#define MIPS_CPU_SP 0x10000000000ull /* Small (1KB) page support */
/*
* CPU ASE encodings