WebSVN – HelenOS – Diff – /trunk/kernel/arch/sparc64/include/mm/tlb.h



 
#define TLB_DEMAP_CONTEXT_SHIFT 4
 
/* TLB Tag Access shifts */
#define TLB_TAG_ACCESS_CONTEXT_SHIFT    0
#define TLB_TAG_ACCESS_CONTEXT_MASK ((1 << 13) - 1)
#define TLB_TAG_ACCESS_VPN_SHIFT    13
 
#ifndef __ASM__
 
#include <arch/mm/tte.h>

 
/** I-/D-TLB Tag Read Register. */
union tlb_tag_read_reg {
    uint64_t value;
    struct {
        uint64_t vpn : 51;  /**< Virtual Address bits 63:13. */
        unsigned context : 13;  /**< Context identifier. */
    } __attribute__ ((packed));
};
typedef union tlb_tag_read_reg tlb_tag_read_reg_t;
typedef union tlb_tag_read_reg tlb_tag_access_reg_t;
 

}
 
/** Perform IMMU TLB Demap Operation.
 *
 * @param type Selects between context and page demap.
 * @param context_encoding Specifies which Context register has Context ID for
 *  demap.
 * @param page Address which is on the page to be demapped.
 */
static inline void itlb_demap(int type, int context_encoding, uintptr_t page)
{
    tlb_demap_addr_t da;

   
    da.type = type;
    da.context = context_encoding;
    da.vpn = pg.vpn;
   
    asi_u64_write(ASI_IMMU_DEMAP, da.value, 0); /* da.value is the
                             * address within the
                             * ASI */
    flush();
}
 
/** Perform DMMU TLB Demap Operation.
 *
 * @param type Selects between context and page demap.
 * @param context_encoding Specifies which Context register has Context ID for
 *   demap.
 * @param page Address which is on the page to be demapped.
 */
static inline void dtlb_demap(int type, int context_encoding, uintptr_t page)
{
    tlb_demap_addr_t da;

   
    da.type = type;
    da.context = context_encoding;
    da.vpn = pg.vpn;
   
    asi_u64_write(ASI_DMMU_DEMAP, da.value, 0); /* da.value is the
                             * address within the
                             * ASI */
    membar();
}
 
extern void fast_instruction_access_mmu_miss(int n, istate_t *istate);
extern void fast_data_access_mmu_miss(int n, istate_t *istate);

Rev 1946	Rev 2054
Line 63...	Line 63...
63		63
64	#define TLB_DEMAP_CONTEXT_SHIFT 4	64	#define TLB_DEMAP_CONTEXT_SHIFT 4
65		65
66	/* TLB Tag Access shifts */	66	/* TLB Tag Access shifts */
67	#define TLB_TAG_ACCESS_CONTEXT_SHIFT 0	67	#define TLB_TAG_ACCESS_CONTEXT_SHIFT 0
68	#define TLB_TAG_ACCESS_CONTEXT_MASK ((1<<13)-1)	68	#define TLB_TAG_ACCESS_CONTEXT_MASK ((1 << 13) - 1)
69	#define TLB_TAG_ACCESS_VPN_SHIFT 13	69	#define TLB_TAG_ACCESS_VPN_SHIFT 13
70		70
71	#ifndef __ASM__	71	#ifndef __ASM__
72		72
73	#include <arch/mm/tte.h>	73	#include <arch/mm/tte.h>
Line 104...	Line 104...
104		104
105	/** I-/D-TLB Tag Read Register. */	105	/** I-/D-TLB Tag Read Register. */
106	union tlb_tag_read_reg {	106	union tlb_tag_read_reg {
107	uint64_t value;	107	uint64_t value;
108	struct {	108	struct {
109	uint64_t vpn : 51; /*< Virtual Address bits 63:13. /	109	uint64_t vpn : 51; /*< Virtual Address bits 63:13. /
110	unsigned context : 13; /*< Context identifier. /	110	unsigned context : 13; /*< Context identifier. /
111	} __attribute__ ((packed));	111	} __attribute__ ((packed));
112	};	112	};
113	typedef union tlb_tag_read_reg tlb_tag_read_reg_t;	113	typedef union tlb_tag_read_reg tlb_tag_read_reg_t;
114	typedef union tlb_tag_read_reg tlb_tag_access_reg_t;	114	typedef union tlb_tag_read_reg tlb_tag_access_reg_t;
115		115
Line 380...	Line 380...
380	}	380	}
381		381
382	/** Perform IMMU TLB Demap Operation.	382	/** Perform IMMU TLB Demap Operation.
383	*	383	*
384	* @param type Selects between context and page demap.	384	* @param type Selects between context and page demap.
385	* @param context_encoding Specifies which Context register has Context ID for demap.	385	* @param context_encoding Specifies which Context register has Context ID for
-		386	* demap.
386	* @param page Address which is on the page to be demapped.	387	* @param page Address which is on the page to be demapped.
387	*/	388	*/
388	static inline void itlb_demap(int type, int context_encoding, uintptr_t page)	389	static inline void itlb_demap(int type, int context_encoding, uintptr_t page)
389	{	390	{
390	tlb_demap_addr_t da;	391	tlb_demap_addr_t da;
Line 395...	Line 396...
395		396
396	da.type = type;	397	da.type = type;
397	da.context = context_encoding;	398	da.context = context_encoding;
398	da.vpn = pg.vpn;	399	da.vpn = pg.vpn;
399		400
400	asi_u64_write(ASI_IMMU_DEMAP, da.value, 0); /* da.value is the address within the ASI */	401	asi_u64_write(ASI_IMMU_DEMAP, da.value, 0); /* da.value is the
-		402	* address within the
-		403	* ASI */
401	flush();	404	flush();
402	}	405	}
403		406
404	/** Perform DMMU TLB Demap Operation.	407	/** Perform DMMU TLB Demap Operation.
405	*	408	*
406	* @param type Selects between context and page demap.	409	* @param type Selects between context and page demap.
407	* @param context_encoding Specifies which Context register has Context ID for demap.	410	* @param context_encoding Specifies which Context register has Context ID for
-		411	* demap.
408	* @param page Address which is on the page to be demapped.	412	* @param page Address which is on the page to be demapped.
409	*/	413	*/
410	static inline void dtlb_demap(int type, int context_encoding, uintptr_t page)	414	static inline void dtlb_demap(int type, int context_encoding, uintptr_t page)
411	{	415	{
412	tlb_demap_addr_t da;	416	tlb_demap_addr_t da;
Line 417...	Line 421...
417		421
418	da.type = type;	422	da.type = type;
419	da.context = context_encoding;	423	da.context = context_encoding;
420	da.vpn = pg.vpn;	424	da.vpn = pg.vpn;
421		425
422	asi_u64_write(ASI_DMMU_DEMAP, da.value, 0); /* da.value is the address within the ASI */	426	asi_u64_write(ASI_DMMU_DEMAP, da.value, 0); /* da.value is the
-		427	* address within the
-		428	* ASI */
423	membar();	429	membar();
424	}	430	}
425		431
426	extern void fast_instruction_access_mmu_miss(int n, istate_t *istate);	432	extern void fast_instruction_access_mmu_miss(int n, istate_t *istate);
427	extern void fast_data_access_mmu_miss(int n, istate_t *istate);	433	extern void fast_data_access_mmu_miss(int n, istate_t *istate);

Subversion Repositories HelenOS

(root)/trunk/kernel/arch/sparc64/include/mm/tlb.h – Rev 1946 → 2054