35,137 → 35,12 |
#ifndef KERN_sparc64_TSB_H_ |
#define KERN_sparc64_TSB_H_ |
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/* |
* ITSB abd DTSB will claim 64K of memory, which |
* is a nice number considered that it is one of |
* the page sizes supported by hardware, which, |
* again, is nice because TSBs need to be locked |
* in TLBs - only one TLB entry will do. |
*/ |
#define TSB_SIZE 2 /* when changing this, change |
* as.c as well */ |
#define ITSB_ENTRY_COUNT (512 * (1 << TSB_SIZE)) |
#define DTSB_ENTRY_COUNT (512 * (1 << TSB_SIZE)) |
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#define TSB_TAG_TARGET_CONTEXT_SHIFT 48 |
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#ifndef __ASM__ |
|
#include <arch/mm/sun4u/tte.h> |
#include <arch/mm/sun4u/mmu.h> |
#include <arch/types.h> |
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/** TSB Base register. */ |
typedef union tsb_base_reg { |
uint64_t value; |
struct { |
uint64_t base : 51; /**< TSB base address, bits 63:13. */ |
unsigned split : 1; /**< Split vs. common TSB for 8K and 64K |
* pages. HelenOS uses only 8K pages |
* for user mappings, so we always set |
* this to 0. |
*/ |
unsigned : 9; |
unsigned size : 3; /**< TSB size. Number of entries is |
* 512 * 2^size. */ |
} __attribute__ ((packed)); |
} tsb_base_reg_t; |
|
/** Read ITSB Base register. |
* |
* @return Content of the ITSB Base register. |
*/ |
static inline uint64_t itsb_base_read(void) |
{ |
return asi_u64_read(ASI_IMMU, VA_IMMU_TSB_BASE); |
} |
|
/** Read DTSB Base register. |
* |
* @return Content of the DTSB Base register. |
*/ |
static inline uint64_t dtsb_base_read(void) |
{ |
return asi_u64_read(ASI_DMMU, VA_DMMU_TSB_BASE); |
} |
|
/** Write ITSB Base register. |
* |
* @param v New content of the ITSB Base register. |
*/ |
static inline void itsb_base_write(uint64_t v) |
{ |
asi_u64_write(ASI_IMMU, VA_IMMU_TSB_BASE, v); |
} |
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/** Write DTSB Base register. |
* |
* @param v New content of the DTSB Base register. |
*/ |
static inline void dtsb_base_write(uint64_t v) |
{ |
asi_u64_write(ASI_DMMU, VA_DMMU_TSB_BASE, v); |
} |
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#if defined (US3) |
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/** Write DTSB Primary Extension register. |
* |
* @param v New content of the DTSB Primary Extension register. |
*/ |
static inline void dtsb_primary_extension_write(uint64_t v) |
{ |
asi_u64_write(ASI_DMMU, VA_DMMU_PRIMARY_EXTENSION, v); |
} |
|
/** Write DTSB Secondary Extension register. |
* |
* @param v New content of the DTSB Secondary Extension register. |
*/ |
static inline void dtsb_secondary_extension_write(uint64_t v) |
{ |
asi_u64_write(ASI_DMMU, VA_DMMU_SECONDARY_EXTENSION, v); |
} |
|
/** Write DTSB Nucleus Extension register. |
* |
* @param v New content of the DTSB Nucleus Extension register. |
*/ |
static inline void dtsb_nucleus_extension_write(uint64_t v) |
{ |
asi_u64_write(ASI_DMMU, VA_DMMU_NUCLEUS_EXTENSION, v); |
} |
|
/** Write ITSB Primary Extension register. |
* |
* @param v New content of the ITSB Primary Extension register. |
*/ |
static inline void itsb_primary_extension_write(uint64_t v) |
{ |
asi_u64_write(ASI_IMMU, VA_IMMU_PRIMARY_EXTENSION, v); |
} |
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/** Write ITSB Nucleus Extension register. |
* |
* @param v New content of the ITSB Nucleus Extension register. |
*/ |
static inline void itsb_nucleus_extension_write(uint64_t v) |
{ |
asi_u64_write(ASI_IMMU, VA_IMMU_NUCLEUS_EXTENSION, v); |
} |
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#if defined (SUN4U) |
#include <arch/mm/sun4u/tsb.h> |
#elif defined (SUN4V) |
#include <arch/mm/sun4v/tsb.h> |
#endif |
|
/* Forward declarations. */ |
struct as; |
struct pte; |
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extern void tsb_invalidate(struct as *as, uintptr_t page, count_t pages); |
extern void itsb_pte_copy(struct pte *t, index_t index); |
extern void dtsb_pte_copy(struct pte *t, index_t index, bool ro); |
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#endif /* !def __ASM__ */ |
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#endif |
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/** @} |