| 0,0 → 1,90 |
|---|
| /* |
| * Copyright (C) 2006 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 ia64mm |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch/mm/as.h> |
| #include <arch/mm/asid.h> |
| #include <arch/mm/page.h> |
| #include <genarch/mm/as_ht.h> |
| #include <genarch/mm/asid_fifo.h> |
| #include <mm/asid.h> |
| #include <arch.h> |
| #include <arch/barrier.h> |
| #include <synch/spinlock.h> |
| |
| /** Architecture dependent address space init. */ |
| void as_arch_init(void) |
| { |
| as_operations = &as_ht_operations; |
| asid_fifo_init(); |
| } |
| |
| /** Prepare registers for switching to another address space. |
| * |
| * @param as Address space. |
| */ |
| void as_install_arch(as_t *as) |
| { |
| ipl_t ipl; |
| region_register rr; |
| int i; |
| |
| ipl = interrupts_disable(); |
| spinlock_lock(&as->lock); |
| |
| ASSERT(as->asid != ASID_INVALID); |
| |
| /* |
| * Load respective ASID (7 consecutive RIDs) to |
| * region registers. |
| */ |
| for (i = 0; i < REGION_REGISTERS; i++) { |
| if (i == VRN_KERNEL) |
| continue; |
| |
| rr.word = rr_read(i); |
| rr.map.ve = false; /* disable VHPT walker */ |
| rr.map.rid = ASID2RID(as->asid, i); |
| rr.map.ps = PAGE_WIDTH; |
| rr_write(i, rr.word); |
| } |
| srlz_d(); |
| srlz_i(); |
| |
| spinlock_unlock(&as->lock); |
| interrupts_restore(ipl); |
| } |
| |
| /** @} |
| */ |
| |