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Diffstat (limited to 'libhurd-mm/physmem-user.c')
| -rw-r--r-- | libhurd-mm/physmem-user.c | 210 |
1 files changed, 0 insertions, 210 deletions
diff --git a/libhurd-mm/physmem-user.c b/libhurd-mm/physmem-user.c deleted file mode 100644 index 0ee13c9..0000000 --- a/libhurd-mm/physmem-user.c +++ /dev/null @@ -1,210 +0,0 @@ -/* physmem-user.c - physmem client stubs. - Copyright (C) 2004, 2005 Free Software Foundation, Inc. - Written by Neal H. Walfield <neal@gnu.org>. - - This file is part of the GNU Hurd. - - The GNU Hurd is free software; you can redistribute it and/or - modify it under the terms of the GNU General Public License as - published by the Free Software Foundation; either version 2, or (at - your option) any later version. - - The GNU Hurd is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received a copy of the GNU General Public License - along with the GNU Hurd; see the file COPYING. If not, write to - the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, - USA. */ - -#if HAVE_CONFIG_H -#include <config.h> -#endif - -#include <stdint.h> -#include <l4.h> - -#include <compiler.h> -#include <hurd/startup.h> - -#include "physmem-user.h" - -/* Initialized by the machine-specific startup-code. */ -extern struct hurd_startup_data *__hurd_startup_data; - -#define physmem (__hurd_startup_data->image.server) - -/* Create a container managed by the physical memory server. On - success, returned in *CONTAINER. */ -error_t -hurd_pm_container_create (hurd_pm_container_t control, - hurd_pm_container_t *container) - -{ - l4_msg_t msg; - l4_msg_tag_t tag; - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_create_id); - l4_msg_append_word (msg, control); - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - *container = l4_msg_word (msg, 0); - - return l4_msg_label (msg); -} - -/* Create a limited access capability for container CONTAINER, return - in *ACCESS. */ -error_t -hurd_pm_container_share (hurd_pm_control_t container, - hurd_pm_container_t *access) -{ - l4_msg_t msg; - l4_msg_tag_t tag; - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_share_id); - l4_msg_append_word (msg, container); - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - *access = l4_msg_word (msg, 0); - - return l4_msg_label (msg); -} - -/* Allocate SIZE bytes according to FLAGS into container CONTAINER - starting with index START. *AMOUNT contains the number of bytes - successfully allocated. */ -error_t -hurd_pm_container_allocate (hurd_pm_container_t container, - l4_word_t start, l4_word_t size, - l4_word_t flags, l4_word_t *amount) -{ - l4_msg_t msg; - l4_msg_tag_t tag; - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_allocate_id); - l4_msg_append_word (msg, container); - l4_msg_append_word (msg, flags); - l4_msg_append_word (msg, start); - l4_msg_append_word (msg, size); - - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - *amount = l4_msg_word (msg, 0); - - return l4_msg_label (msg); -} - -error_t -hurd_pm_container_deallocate (hurd_pm_container_t container, - uintptr_t start, uintptr_t size) -{ - l4_msg_t msg; - l4_msg_tag_t tag; - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_deallocate_id); - l4_msg_append_word (msg, container); - l4_msg_append_word (msg, start); - l4_msg_append_word (msg, size); - - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - return l4_msg_label (msg); -} - - -/* Map the COUNT bytes of physical memory in container CONTAINER - starting at byte INDEX at virtual memory address VADDR of the - calling task according to the flags FLAGS. */ -error_t -hurd_pm_container_map (hurd_pm_container_t container, - l4_word_t index, size_t count, - uintptr_t vaddr, l4_word_t flags, - size_t *amountp) -{ - l4_msg_t msg; - l4_msg_tag_t tag; - int i; - size_t amount; - - /* Let physmem take over the address space completely. */ - l4_accept (l4_map_grant_items (L4_COMPLETE_ADDRESS_SPACE)); - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_map_id); - l4_msg_append_word (msg, container); - l4_msg_append_word (msg, flags); - l4_msg_append_word (msg, vaddr); - l4_msg_append_word (msg, index); - l4_msg_append_word (msg, count); - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - if (amountp) - { - for (i = 0, amount = 0; - i < l4_typed_words (tag); - i += sizeof (l4_map_item_t) / sizeof (l4_word_t)) - { - l4_map_item_t mi; - l4_msg_get_map_item (msg, i, &mi); - assert (l4_is_map_item (mi)); - amount += l4_size (l4_map_item_snd_fpage (mi)); - } - - *amountp = amount; - } - - return l4_msg_label (msg); -} - -error_t -hurd_pm_container_copy (hurd_pm_container_t src_container, - uintptr_t src_start, - hurd_pm_container_t dest_container, - uintptr_t dest_start, - size_t count, - uintptr_t flags, - size_t *amount) -{ - l4_msg_t msg; - l4_msg_tag_t tag; - - l4_msg_clear (msg); - l4_set_msg_label (msg, hurd_pm_container_copy_id); - l4_msg_append_word (msg, src_container); - l4_msg_append_word (msg, src_start); - l4_msg_append_word (msg, dest_container); - l4_msg_append_word (msg, dest_start); - l4_msg_append_word (msg, count); - l4_msg_append_word (msg, flags); - - l4_msg_load (msg); - - tag = l4_call (physmem); - l4_msg_store (tag, msg); - - *amount = l4_msg_word (msg, 0); - - return l4_msg_label (msg); -} |