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Diffstat (limited to 'libhurd-mm/physmem-user.h')
| -rw-r--r-- | libhurd-mm/physmem-user.h | 116 |
1 files changed, 0 insertions, 116 deletions
diff --git a/libhurd-mm/physmem-user.h b/libhurd-mm/physmem-user.h deleted file mode 100644 index 266bfc5..0000000 --- a/libhurd-mm/physmem-user.h +++ /dev/null @@ -1,116 +0,0 @@ -/* physmem-user.h - 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. */ - -#ifndef HURD_PHYSMEM_USER_H -#define HURD_PHYSMEM_USER_H 1 - -#include <stdint.h> -#include <sys/types.h> -#include <l4.h> -#include <hurd/types.h> -#include <hurd/physmem.h> - -/* Create a container in *CONTAINER managed by the physical memory - server from the contol memory capability CONTROL. */ -extern error_t hurd_pm_container_create (hurd_pm_control_t control, - hurd_pm_container_t *container); - -/* Create a limited access capability for container CONTAINER, return - in *ACCESS. */ -extern error_t hurd_pm_container_share (hurd_pm_container_t container, - hurd_pm_container_t *access); - -/* Allocate SIZE bytes of physical memory (which must be a multiple of - the page size) according to the flags FLAGS into container - CONTAINER and associate the first byte with index START (and byte X - with START+X where X < SIZE). On return *AMOUNT will contain the - number of bytes successfully allocated. The returned error code - will indicate the error trying to allocate byte *AMOUNT. - - physmem will use the least number of frames possible to cover the - region (recall: a frame is any power of 2 greater than the minimum - page size) without allocating too much memory. That is, if you - allocate 12k and the page size is 4k, physmem will allocate two - frames, an 8k frame and a 4k frame. If for some reason you need - only 4k frames, then you must call this function multiple - times. */ -extern 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); - -/* Deallocate SIZE bytes of physical memory starting at offset START - in container CONTAINER. This implicitly unmaps any extant mappings - of the physical memory. If is not START page aligned, EINVAL is - returned. If SIZE is not a multiple of the page size, EINVAL is - returned. - - Multiple allocations may be deallocated in a single RPC. Parts of - an allocation may also be deallocated. Any part of the region - without a valid mapping will be ignored (and no error - returned). */ -extern error_t hurd_pm_container_deallocate (hurd_pm_container_t container, - uintptr_t start, uintptr_t size); - -/* 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. - - If INDEX does not refer to the start of base page aligned memory in - CONTAINER, EINVAL is returned. If SIZE is not a multiple of the - base page size, EINVAL is returned. If VADDR is not aligned on a - multiple of the base page size, EINVAL is returned. - - If an address to map has no memory associated with it, ENOENT is - returned. - - If AMOUNT is not-NULL, *AMOUNT is set to the number of bytes - actually mapped. */ -extern error_t hurd_pm_container_map (hurd_pm_container_t container, - l4_word_t index, size_t size, - uintptr_t vaddr, l4_word_t flags, - size_t *amount); - -/* Logically copy COUNT bytes from container SRC_CONTAINER starting at - byte SRC_START to container DEST_CONTAINER starting at byte - DEST_START. On return, *AMOUNT contains the number of bytes - successfully copied. - - If copying would overwrite frames in DEST_CONTAINER and FLAGS - contains HURD_PM_CONT_ALLOC_SQUASH, the frames are implicitly - deallocated, otherwise EEXIST is returned. - - If an address to copy has no memory associated with it, ENOENT is - returned. - - SRC_START and DEST_START must correspond to the start of a base - page. COUNT must be a multiple of the base page. Failing this, - EINVAL is returned. - - *AMOUNT will always contain a number of bytes which is a multiple - of the base page size. */ -extern 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); -#endif /* HURD_PHYSMEM_USER_H */ |