diff options
Diffstat (limited to 'include/asm-sparc64/mmu.h')
| -rw-r--r-- | include/asm-sparc64/mmu.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/include/asm-sparc64/mmu.h b/include/asm-sparc64/mmu.h deleted file mode 100644 index 8abc58f..0000000 --- a/include/asm-sparc64/mmu.h +++ /dev/null @@ -1,127 +0,0 @@ -#ifndef __MMU_H -#define __MMU_H - -#include <linux/const.h> -#include <asm/page.h> -#include <asm/hypervisor.h> - -#define CTX_NR_BITS 13 - -#define TAG_CONTEXT_BITS ((_AC(1,UL) << CTX_NR_BITS) - _AC(1,UL)) - -/* UltraSPARC-III+ and later have a feature whereby you can - * select what page size the various Data-TLB instances in the - * chip. In order to gracefully support this, we put the version - * field in a spot outside of the areas of the context register - * where this parameter is specified. - */ -#define CTX_VERSION_SHIFT 22 -#define CTX_VERSION_MASK ((~0UL) << CTX_VERSION_SHIFT) - -#define CTX_PGSZ_8KB _AC(0x0,UL) -#define CTX_PGSZ_64KB _AC(0x1,UL) -#define CTX_PGSZ_512KB _AC(0x2,UL) -#define CTX_PGSZ_4MB _AC(0x3,UL) -#define CTX_PGSZ_BITS _AC(0x7,UL) -#define CTX_PGSZ0_NUC_SHIFT 61 -#define CTX_PGSZ1_NUC_SHIFT 58 -#define CTX_PGSZ0_SHIFT 16 -#define CTX_PGSZ1_SHIFT 19 -#define CTX_PGSZ_MASK ((CTX_PGSZ_BITS << CTX_PGSZ0_SHIFT) | \ - (CTX_PGSZ_BITS << CTX_PGSZ1_SHIFT)) - -#if defined(CONFIG_SPARC64_PAGE_SIZE_8KB) -#define CTX_PGSZ_BASE CTX_PGSZ_8KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_64KB) -#define CTX_PGSZ_BASE CTX_PGSZ_64KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_512KB) -#define CTX_PGSZ_BASE CTX_PGSZ_512KB -#elif defined(CONFIG_SPARC64_PAGE_SIZE_4MB) -#define CTX_PGSZ_BASE CTX_PGSZ_4MB -#else -#error No page size specified in kernel configuration -#endif - -#if defined(CONFIG_HUGETLB_PAGE_SIZE_4MB) -#define CTX_PGSZ_HUGE CTX_PGSZ_4MB -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_512K) -#define CTX_PGSZ_HUGE CTX_PGSZ_512KB -#elif defined(CONFIG_HUGETLB_PAGE_SIZE_64K) -#define CTX_PGSZ_HUGE CTX_PGSZ_64KB -#endif - -#define CTX_PGSZ_KERN CTX_PGSZ_4MB - -/* Thus, when running on UltraSPARC-III+ and later, we use the following - * PRIMARY_CONTEXT register values for the kernel context. - */ -#define CTX_CHEETAH_PLUS_NUC \ - ((CTX_PGSZ_KERN << CTX_PGSZ0_NUC_SHIFT) | \ - (CTX_PGSZ_BASE << CTX_PGSZ1_NUC_SHIFT)) - -#define CTX_CHEETAH_PLUS_CTX0 \ - ((CTX_PGSZ_KERN << CTX_PGSZ0_SHIFT) | \ - (CTX_PGSZ_BASE << CTX_PGSZ1_SHIFT)) - -/* If you want "the TLB context number" use CTX_NR_MASK. If you - * want "the bits I program into the context registers" use - * CTX_HW_MASK. - */ -#define CTX_NR_MASK TAG_CONTEXT_BITS -#define CTX_HW_MASK (CTX_NR_MASK | CTX_PGSZ_MASK) - -#define CTX_FIRST_VERSION ((_AC(1,UL) << CTX_VERSION_SHIFT) + _AC(1,UL)) -#define CTX_VALID(__ctx) \ - (!(((__ctx.sparc64_ctx_val) ^ tlb_context_cache) & CTX_VERSION_MASK)) -#define CTX_HWBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_HW_MASK) -#define CTX_NRBITS(__ctx) ((__ctx.sparc64_ctx_val) & CTX_NR_MASK) - -#ifndef __ASSEMBLY__ - -#define TSB_ENTRY_ALIGNMENT 16 - -struct tsb { - unsigned long tag; - unsigned long pte; -} __attribute__((aligned(TSB_ENTRY_ALIGNMENT))); - -extern void __tsb_insert(unsigned long ent, unsigned long tag, unsigned long pte); -extern void tsb_flush(unsigned long ent, unsigned long tag); -extern void tsb_init(struct tsb *tsb, unsigned long size); - -struct tsb_config { - struct tsb *tsb; - unsigned long tsb_rss_limit; - unsigned long tsb_nentries; - unsigned long tsb_reg_val; - unsigned long tsb_map_vaddr; - unsigned long tsb_map_pte; -}; - -#define MM_TSB_BASE 0 - -#ifdef CONFIG_HUGETLB_PAGE -#define MM_TSB_HUGE 1 -#define MM_NUM_TSBS 2 -#else -#define MM_NUM_TSBS 1 -#endif - -typedef struct { - spinlock_t lock; - unsigned long sparc64_ctx_val; - unsigned long huge_pte_count; - struct tsb_config tsb_block[MM_NUM_TSBS]; - struct hv_tsb_descr tsb_descr[MM_NUM_TSBS]; -} mm_context_t; - -#endif /* !__ASSEMBLY__ */ - -#define TSB_CONFIG_TSB 0x00 -#define TSB_CONFIG_RSS_LIMIT 0x08 -#define TSB_CONFIG_NENTRIES 0x10 -#define TSB_CONFIG_REG_VAL 0x18 -#define TSB_CONFIG_MAP_VADDR 0x20 -#define TSB_CONFIG_MAP_PTE 0x28 - -#endif /* __MMU_H */ |
