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38 commits

Author SHA1 Message Date
Gregory Nutt
6aeb4a52e8 Performance improvement: Idle loop should not take MM semaphore if there is not garbage to be collected. This can cause loss of performance and thrashing in tasking 2016-02-16 19:33:22 -06:00
Gregory Nutt
59cc4a7a7b Protected mode: Redesign how the user space heap is accessed from the kernel code. It used to call memory management functions in user space via function pointers in the userspace interface. That is inefficient because the first thing that those memory management functions do is to trap back into the kernel to get the current PID. Worse, that operation can be fatal is certain fragile situations such as when a task is exitting. 
The solution is to remove all of the memory management function calls from the interface.  Instead, the interface exports the userspace heap structure and then kernel size implementations of those memory management functions will operate on the userspace heap structure.  This avoids the unnecessary system calls and, more importantly, failures do to freeing memory when a test exits.
 2015-07-10 08:37:02 -06:00
Gregory Nutt
b33c2d9cef Move include/nuttx/mm.h to include/nuttx/mm/mm.h 2014-09-24 07:29:09 -06:00
Gregory Nutt
166d46a819 Fix error in new macro definition that causes compile problem when not using a kernel-mode build 2014-09-04 07:01:22 -06:00
Gregory Nutt
b2a94b6f2b Fix more places where the user-mode allocator is used to allocate kernel thread resources -- before the user-mode allocator even exists 2014-09-03 14:58:24 -06:00
Gregory Nutt
b4438e44c5 Restructuring of build to allow use of use-space allocators by kernel logic in the kernel build. 2014-09-02 11:22:09 -06:00
Gregory Nutt
1780810d3d Rename kmalloc to kmm_malloc for consistency 2014-08-31 17:26:36 -06:00
Gregory Nutt
54fa3b0b59 Rename kfree to kmm_free for consistency with other naming conventions 2014-08-31 17:04:02 -06:00
Gregory Nutt
9aca0c1c84 Rename kumalloc to kumm_malloc and kuzalloc to kumm_zalloc for consistency with other naming 2014-08-31 16:24:24 -06:00
Gregory Nutt
9ad7dae4c1 Rename kufree to kumm_free for consistency with other naming 2014-08-31 16:15:11 -06:00
Gregory Nutt
9cd1ddada4 Rename kmemalign to kmm_memalign and krealloc to kmm_realooc for consistency with other naming 2014-08-31 15:27:37 -06:00
Gregory Nutt
5a488475a8 Rename kmemalign to kmm_memalign for consitency with other naming 2014-08-31 14:57:31 -06:00
Gregory Nutt
2904fb0420 Clean up some kernel build heap allocation issues. The Cortex-A kernel build now compiles without errors (but cannot link until brk() and sbrk() are implemented). 2014-08-31 12:50:05 -06:00
Gregory Nutt
3c1a70c9dc Remove CONFIG_MM_MULTIHEAP. Non-multiheap operation is no longer supported 2014-08-31 10:54:55 -06:00
Gregory Nutt
e3ff0689bb Rename CONFIG_NUTTX_KERNEL to CONFIG_BUILD_PROTECTED; Partially integrate new CONFIG_BUILD_KERNEL 2014-08-29 14:47:22 -06:00
Gregory Nutt
e13e5685cb /proc task directories can now have sub-directories 2013-12-15 10:31:07 -06:00
Gregory Nutt
e3a76b2e64 Add kernel/user memalign functions. Not fully integrated 2013-08-20 13:04:49 -06:00
patacongo
73ef58fda6 A few early fixes in kernel build testing 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5734 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-12 16:02:48 +00:00
patacongo
2b64d4742a Fix a typo that crept into lpc17_allocateheap.c in the recent kernel allocator changes 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5729 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-11 13:21:33 +00:00
patacongo
2433c1461b Remove user_map.h; replace with a header at the beginning of the user-space blob. User work queue no started by os_brinup() on behalf of the application 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5727 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-10 23:42:49 +00:00
patacongo
1ef904003e Create sched_ufree and sched_kfree from sched_free; Use user-accessible heap to allocae stacks 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5725 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-10 15:32:33 +00:00
patacongo
1c52dce216 More changes for a kernel-mode allocator (more to be done) 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5724 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-09 21:12:20 +00:00
patacongo
feca2c077e With these fixes, the kernel build is basically functional (but there is more to be done) 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5722 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-09 01:27:42 +00:00
patacongo
0db8dc83ee up_addregion should use kmm_addregion; move garbage kmm*.c file to mm/. for now 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5721 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-08 22:01:50 +00:00
patacongo
017e07d35d Add support for multiple heaps 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5720 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-08 20:36:18 +00:00
patacongo
45ce321f51 Move all memory manager globals to a structure. Pass structure pointer as a handler because MM APIs 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5719 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-08 18:29:56 +00:00
patacongo
4b3ad32ee5 Fix network poll() issue: don't interrupt poll if socket not connected. Listen sockets are not connected and the poll() is waiting for connection events. 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5717 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-07 17:59:21 +00:00
patacongo
4134862fb2 Move work queue logic from sched/ to libc/wqueue. It is not core logic and will be extended to support user-space work queues 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5711 42af7a65-404d-4744-a932-0658087f49c3
 2013-03-05 18:57:51 +00:00
patacongo
8e5733ae3f Header file clean-up 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@4948 42af7a65-404d-4744-a932-0658087f49c3
 2012-07-17 03:58:11 +00:00
patacongo
3910f865ec Fix bugs introduced in last commit 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3470 42af7a65-404d-4744-a932-0658087f49c3
 2011-04-05 21:18:03 +00:00
patacongo
4388221844 More separation of kernel- and user-memory management 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3468 42af7a65-404d-4744-a932-0658087f49c3
 2011-04-05 17:33:50 +00:00
patacongo
3552ddb5ff Add a layer to redirect kernel-mode memory manager accesses 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3466 42af7a65-404d-4744-a932-0658087f49c3
 2011-04-05 15:50:01 +00:00
patacongo
bae9dce323 Move memory manager into user space 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3460 42af7a65-404d-4744-a932-0658087f49c3
 2011-04-03 20:41:49 +00:00
patacongo
0a9c6e69a3 Added nxglib.h 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1309 42af7a65-404d-4744-a932-0658087f49c3
 2008-11-26 15:48:48 +00:00
patacongo
60d8905398 Added USB device controller driver for LPC214x 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@960 42af7a65-404d-4744-a932-0658087f49c3
 2008-09-29 22:04:58 +00:00
patacongo
360cc0a648 typos 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@799 42af7a65-404d-4744-a932-0658087f49c3
 2008-08-02 17:22:22 +00:00
patacongo
a60059d9d0 Finally, a clean SDCC compile 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@20 42af7a65-404d-4744-a932-0658087f49c3
 2007-02-27 21:17:21 +00:00
patacongo
b08a86171f NuttX RTOS 
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3 42af7a65-404d-4744-a932-0658087f49c3
 2007-02-17 23:21:28 +00:00