| 0,0 → 1,91 |
|---|
| /* |
| * Copyright (C) 2001-2004 Jakub Jermar |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup genericmm |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #ifndef __TLB_H__ |
| #define __TLB_H__ |
| |
| #include <arch/mm/asid.h> |
| #include <arch/types.h> |
| #include <typedefs.h> |
| |
| /** |
| * Number of TLB shootdown messages that can be queued in processor |
| * tlb_messages queue. |
| */ |
| #define TLB_MESSAGE_QUEUE_LEN 10 |
| |
| /** 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_PAGES /**< Invalidate specified page range belonging to one address space. */ |
| }; |
| typedef enum tlb_invalidate_type tlb_invalidate_type_t; |
| |
| /** TLB shootdown message. */ |
| struct tlb_shootdown_msg { |
| tlb_invalidate_type_t type; /**< Message type. */ |
| asid_t asid; /**< Address space identifier. */ |
| uintptr_t page; /**< Page address. */ |
| count_t count; /**< Number of pages to invalidate. */ |
| }; |
| 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, uintptr_t page, count_t count); |
| 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_shootdown_ipi_send(void); |
| |
| extern void tlb_invalidate_all(void); |
| extern void tlb_invalidate_asid(asid_t asid); |
| extern void tlb_invalidate_pages(asid_t asid, uintptr_t page, count_t cnt); |
| #endif |
| |
| /** @} |
| */ |
| |