| /kernel/trunk/generic/include/mm/asid.h |
|---|
| 26,9 → 26,35 |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /* |
| * This is generic interface for managing |
| * Address Space IDentifiers (ASIDs). |
| */ |
| #ifndef __ASID_H__ |
| #define __ASID_H__ |
| #include <arch/mm/asid.h> |
| #include <typedefs.h> |
| #define ASID_KERNEL 0 |
| #define ASID_INVALID 1 |
| #define ASID_START 2 |
| #define ASID_MAX ASID_MAX_ARCH |
| #define ASIDS_ALLOCABLE ((ASID_MAX+1)-ASID_START) |
| extern spinlock_t asidlock; |
| extern link_t as_with_asid_head; |
| extern asid_t asid_get(void); |
| extern void asid_put(asid_t asid); |
| #ifndef asid_install |
| extern void asid_install(as_t *as); |
| #endif /* !def asid_install */ |
| #define asid_find_free() ASID_START |
| #define asid_put_arch(x) |
| #endif |
| /kernel/trunk/generic/include/mm/tlb.h |
|---|
| 31,25 → 31,14 |
| #include <arch/mm/asid.h> |
| #include <arch/types.h> |
| #include <typedefs.h> |
| extern void tlb_init(void); |
| #ifdef CONFIG_SMP |
| extern void tlb_shootdown_start(void); |
| extern void tlb_shootdown_finalize(void); |
| extern void tlb_shootdown_ipi_recv(void); |
| #else |
| # define tlb_shootdown_start() ; |
| # define tlb_shootdown_finalize() ; |
| # define tlb_shootdown_ipi_recv() ; |
| #endif /* CONFIG_SMP */ |
| /** Type of TLB shootdown message. */ |
| enum tlb_invalidate_type { |
| TLB_INVL_INVALID = 0, /**< Invalid type. */ |
| TLB_INVL_ALL, /**< Invalidate all entries in TLB. */ |
| TLB_INVL_ASID, /**< Invalidate all entries belonging to one address space. */ |
| TLB_INVL_PAGE /**< Invalidate one entry for specified page. */ |
| TLB_INVL_PAGES /**< Invalidate specified page range belonging to one address space. */ |
| }; |
| typedef enum tlb_invalidate_type tlb_invalidate_type_t; |
| 63,14 → 52,25 |
| typedef struct tlb_shootdown_msg tlb_shootdown_msg_t; |
| extern void tlb_init(void); |
| #ifdef CONFIG_SMP |
| extern void tlb_shootdown_start(tlb_invalidate_type_t type, asid_t asid, __address page, count_t cnt); |
| extern void tlb_shootdown_finalize(void); |
| extern void tlb_shootdown_ipi_recv(void); |
| #else |
| # define tlb_shootdown_start(w, x, y, z) |
| # define tlb_shootdown_finalize() |
| # define tlb_shootdown_ipi_recv() |
| #endif /* CONFIG_SMP */ |
| /* Export TLB interface that each architecture must implement. */ |
| extern void tlb_arch_init(void); |
| extern void tlb_print(void); |
| extern void tlb_invalidate(asid_t asid); |
| extern void tlb_shootdown_ipi_send(void); |
| extern void tlb_invalidate_all(void); |
| extern void tlb_invalidate_asid(asid_t asid); |
| extern void tlb_invalidate_page(asid_t asid, __address page); |
| extern void tlb_invalidate_pages(asid_t asid, __address page, count_t cnt); |
| #endif |
| /kernel/trunk/generic/include/mm/as.h |
|---|
| 48,6 → 48,8 |
| #define USTACK_ADDRESS USTACK_ADDRESS_ARCH |
| #define UDATA_ADDRESS UDATA_ADDRESS_ARCH |
| #define AS_KERNEL (1<<0) /**< Kernel address space. */ |
| enum as_area_type { |
| AS_AREA_TEXT = 1, AS_AREA_DATA, AS_AREA_STACK |
| }; |
| 61,7 → 63,7 |
| SPINLOCK_DECLARE(lock); |
| link_t link; |
| as_area_type_t type; |
| size_t size; /**< Size of this area. */ |
| size_t size; /**< Size of this area in multiples of PAGE_SIZE. */ |
| __address base; /**< Base address of this area. */ |
| index_t *mapping; /**< Map of physical frame numbers mapped to virtual page numbers in this area. */ |
| }; |
| 74,6 → 76,9 |
| * set up during system initialization. |
| */ |
| struct as { |
| /** Protected by asidlock. Must be acquired before as-> lock. */ |
| link_t as_with_asid_link; |
| SPINLOCK_DECLARE(lock); |
| link_t as_area_head; |
| pte_t *ptl0; |
| 80,20 → 85,13 |
| asid_t asid; /**< Address space identifier. */ |
| }; |
| extern as_t * as_create(pte_t *ptl0); |
| extern as_t * as_create(pte_t *ptl0, int flags); |
| extern as_area_t *as_area_create(as_t *as, as_area_type_t type, size_t size, __address base); |
| extern void as_area_set_mapping(as_area_t *a, index_t vpn, index_t pfn); |
| extern int as_page_fault(__address page); |
| extern void as_install(as_t *m); |
| /* |
| * Each architecture should implement this function. |
| * Its main purpose is to do TLB purges according |
| * to architecture's requirements. Note that |
| * some architectures invalidate their TLB automatically |
| * on hardware address space switch (e.g. ia32 and |
| * amd64). |
| */ |
| /* Interface to be implemented by architectures. */ |
| #ifndef as_install_arch |
| extern void as_install_arch(as_t *as); |
| #endif /* !def as_install_arch */ |