diff options
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/cpu-info.h | 3 | ||||
| -rw-r--r-- | arch/mips/include/asm/mipsregs.h | 2 | ||||
| -rw-r--r-- | arch/mips/include/asm/page.h | 25 |
3 files changed, 30 insertions, 0 deletions
diff --git a/arch/mips/include/asm/cpu-info.h b/arch/mips/include/asm/cpu-info.h index 21c8e29c8f91..8f7adf0ac1e3 100644 --- a/arch/mips/include/asm/cpu-info.h +++ b/arch/mips/include/asm/cpu-info.h @@ -52,6 +52,9 @@ struct cpuinfo_mips { unsigned int cputype; int isa_level; int tlbsize; + int tlbsizevtlb; + int tlbsizeftlbsets; + int tlbsizeftlbways; struct cache_desc icache; /* Primary I-cache */ struct cache_desc dcache; /* Primary D or combined I/D cache */ struct cache_desc scache; /* Secondary cache */ diff --git a/arch/mips/include/asm/mipsregs.h b/arch/mips/include/asm/mipsregs.h index d9910a1e754a..cb57e07faa24 100644 --- a/arch/mips/include/asm/mipsregs.h +++ b/arch/mips/include/asm/mipsregs.h @@ -645,6 +645,8 @@ #define MIPS_CONF5_K (_ULCAST_(1) << 30) #define MIPS_CONF6_SYND (_ULCAST_(1) << 13) +/* proAptiv FTLB on/off bit */ +#define MIPS_CONF6_FTLBEN (_ULCAST_(1) << 15) #define MIPS_CONF7_WII (_ULCAST_(1) << 31) diff --git a/arch/mips/include/asm/page.h b/arch/mips/include/asm/page.h index f6be4741f7e8..5e08bcc74897 100644 --- a/arch/mips/include/asm/page.h +++ b/arch/mips/include/asm/page.h @@ -11,6 +11,8 @@ #include <spaces.h> #include <linux/const.h> +#include <linux/kernel.h> +#include <asm/mipsregs.h> /* * PAGE_SHIFT determines the page size @@ -33,6 +35,29 @@ #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT) #define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) +/* + * This is used for calculating the real page sizes + * for FTLB or VTLB + FTLB confugrations. + */ +static inline unsigned int page_size_ftlb(unsigned int mmuextdef) +{ + switch (mmuextdef) { + case MIPS_CONF4_MMUEXTDEF_FTLBSIZEEXT: + if (PAGE_SIZE == (1 << 30)) + return 5; + if (PAGE_SIZE == (1llu << 32)) + return 6; + if (PAGE_SIZE > (256 << 10)) + return 7; /* reserved */ + /* fall through */ + case MIPS_CONF4_MMUEXTDEF_VTLBSIZEEXT: + return (PAGE_SHIFT - 10) / 2; + default: + panic("Invalid FTLB configuration with Conf4_mmuextdef=%d value\n", + mmuextdef >> 14); + } +} + #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT #define HPAGE_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3) #define HPAGE_SIZE (_AC(1,UL) << HPAGE_SHIFT) |