diff options
Diffstat (limited to 'nuttx')
32 files changed, 198 insertions, 181 deletions
diff --git a/nuttx/ChangeLog b/nuttx/ChangeLog index 2bc475683..f0720f02f 100644 --- a/nuttx/ChangeLog +++ b/nuttx/ChangeLog @@ -4284,6 +4284,10 @@ * mm/: Move all memory manager globals into a structure. A reference to this structure is now passed internally between mm APIs. This change will (eventually) support multiple heaps and heap allocators. - (2013-03-07). + (2013-03-08). * mm/ and include/nuttx/mm.h: Implement support for multiple heaps. - (2013-03-07). + (2013-03-08). + * arch/*/src: xyz_addregion() needs to call kmm_addregion, not mm_addretion. + (2013-03-08). + * sched/kmm*.c: Move this garbage kmm*.c file to mm/. until I decide what + to do with them (which is probably to just delete them). (2013-03-08). diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index 9eb114fd2..0670ec11c 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -4396,7 +4396,7 @@ build <code>CONFIG_MM_REGIONS</code>: If the architecture includes multiple regions of memory to allocate from, this specifies the number of memory regions that the memory manager must - handle and enables the API mm_addregion(start, end); + handle and enables the API <code>mm_addregion(heap, start, end)</code>. </li> <li> <code>CONFIG_MM_SMALL</code>: Each memory allocation has a small allocation diff --git a/nuttx/Makefile.unix b/nuttx/Makefile.unix index 47debcccf..21d3537bd 100644 --- a/nuttx/Makefile.unix +++ b/nuttx/Makefile.unix @@ -198,10 +198,10 @@ USERLIBS = # is placed in user space (only). ifeq ($(CONFIG_NUTTX_KERNEL),y) -NUTTXLIBS += lib/libstubs$(LIBEXT) lib/libkc$(LIBEXT) -USERLIBS += lib/libproxies$(LIBEXT) lib/libuc$(LIBEXT) lib/libmm$(LIBEXT) +NUTTXLIBS += lib/libstubs$(LIBEXT) lib/libkc$(LIBEXT) lib/libkmm$(LIBEXT) +USERLIBS += lib/libproxies$(LIBEXT) lib/libuc$(LIBEXT) lib/libumm$(LIBEXT) else -NUTTXLIBS += lib/libmm$(LIBEXT) lib/libc$(LIBEXT) +NUTTXLIBS += lib/libc$(LIBEXT) lib/libmm$(LIBEXT) endif # Add libraries for C++ support. CXX, CXXFLAGS, and COMPILEXX must @@ -457,6 +457,12 @@ libc/libkc$(LIBEXT): context lib/libkc$(LIBEXT): libc/libkc$(LIBEXT) $(Q) install libc/libkc$(LIBEXT) lib/libkc$(LIBEXT) +mm/libkmm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libkmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib/libkmm$(LIBEXT): mm/libkmm$(LIBEXT) + $(Q) install mm/libkmm$(LIBEXT) lib/libkmm$(LIBEXT) + sched/libsched$(LIBEXT): context $(Q) $(MAKE) -C sched TOPDIR="$(TOPDIR)" libsched$(LIBEXT) EXTRADEFINES=$(KDEFINE) @@ -513,18 +519,18 @@ libc/libuc$(LIBEXT): context lib/libuc$(LIBEXT): libc/libuc$(LIBEXT) $(Q) install libc/libuc$(LIBEXT) lib/libuc$(LIBEXT) +mm/libumm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libumm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib/libumm$(LIBEXT): mm/libumm$(LIBEXT) + $(Q) install mm/libumm$(LIBEXT) lib/libumm$(LIBEXT) + libxx/libcxx$(LIBEXT): context $(Q) $(MAKE) -C libxx TOPDIR="$(TOPDIR)" libcxx$(LIBEXT) lib/libcxx$(LIBEXT): libxx/libcxx$(LIBEXT) $(Q) install libxx/libcxx$(LIBEXT) lib/libcxx$(LIBEXT) -mm/libmm$(LIBEXT): context - $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) - -lib/libmm$(LIBEXT): mm/libmm$(LIBEXT) - $(Q) install mm/libmm$(LIBEXT) lib/libmm$(LIBEXT) - $(APPDIR)/libapps$(LIBEXT): context $(Q) $(MAKE) -C $(APPDIR) TOPDIR="$(TOPDIR)" libapps$(LIBEXT) @@ -545,6 +551,12 @@ libc/libc$(LIBEXT): context lib/libc$(LIBEXT): libc/libc$(LIBEXT) $(Q) install libc/libc$(LIBEXT) lib/libc$(LIBEXT) +mm/libmm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib/libmm$(LIBEXT): mm/libmm$(LIBEXT) + $(Q) install mm/libmm$(LIBEXT) lib/libmm$(LIBEXT) + # pass1 and pass2 # # If the 2 pass build option is selected, then this pass1 target is @@ -680,7 +692,6 @@ subdir_clean: fi \ done $(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" clean - $(Q) $(MAKE) -C mm -f Makefile.test TOPDIR="$(TOPDIR)" clean ifeq ($(CONFIG_BUILD_2PASS),y) $(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" clean endif diff --git a/nuttx/Makefile.win b/nuttx/Makefile.win index 5c4404f57..275b6b698 100644 --- a/nuttx/Makefile.win +++ b/nuttx/Makefile.win @@ -191,10 +191,10 @@ USERLIBS = # is placed in user space (only). ifeq ($(CONFIG_NUTTX_KERNEL),y) -NUTTXLIBS += lib\libstubs$(LIBEXT) lib\libkc$(LIBEXT) -USERLIBS += lib\libproxies$(LIBEXT) lib\libuc$(LIBEXT) lib\libmm$(LIBEXT) +NUTTXLIBS += lib\libstubs$(LIBEXT) lib\libkc$(LIBEXT) lib\libkmm$(LIBEXT) +USERLIBS += lib\libproxies$(LIBEXT) lib\libuc$(LIBEXT) lib\libumm$(LIBEXT) else -NUTTXLIBS += lib\libmm$(LIBEXT) lib\libc$(LIBEXT) +NUTTXLIBS += lib\libc$(LIBEXT) lib\libmm$(LIBEXT) endif # Add libraries for C++ support. CXX, CXXFLAGS, and COMPILEXX must @@ -473,6 +473,12 @@ libc\libkc$(LIBEXT): context lib\libkc$(LIBEXT): libc\libkc$(LIBEXT) $(Q) install libc\libkc$(LIBEXT) lib\libkc$(LIBEXT) +mm\libkmm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libkmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib\libkmm$(LIBEXT): mm\libkmm$(LIBEXT) + $(Q) install mm\libkmm$(LIBEXT) lib\libkmm$(LIBEXT) + sched\libsched$(LIBEXT): context $(Q) $(MAKE) -C sched TOPDIR="$(TOPDIR)" libsched$(LIBEXT) EXTRADEFINES=$(KDEFINE) @@ -529,18 +535,18 @@ libc\libuc$(LIBEXT): context lib\libuc$(LIBEXT): libc\libuc$(LIBEXT) $(Q) install libc\libuc$(LIBEXT) lib\libuc$(LIBEXT) +mm\libumm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libumm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib\libumm$(LIBEXT): mm\libumm$(LIBEXT) + $(Q) install mm\libumm$(LIBEXT) lib\libumm$(LIBEXT) + libxx\libcxx$(LIBEXT): context $(Q) $(MAKE) -C libxx TOPDIR="$(TOPDIR)" libcxx$(LIBEXT) lib\libcxx$(LIBEXT): libxx\libcxx$(LIBEXT) $(Q) install libxx\libcxx$(LIBEXT) lib\libcxx$(LIBEXT) -mm\libmm$(LIBEXT): context - $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) - -lib\libmm$(LIBEXT): mm\libmm$(LIBEXT) - $(Q) install mm\libmm$(LIBEXT) lib\libmm$(LIBEXT) - $(APPDIR)\libapps$(LIBEXT): context $(Q) $(MAKE) -C $(APPDIR) TOPDIR="$(TOPDIR)" libapps$(LIBEXT) @@ -561,6 +567,12 @@ libc\libc$(LIBEXT): context lib\libc$(LIBEXT): libc\libc$(LIBEXT) $(Q) install libc\libc$(LIBEXT) lib\libc$(LIBEXT) +mm\libmm$(LIBEXT): context + $(Q) $(MAKE) -C mm TOPDIR="$(TOPDIR)" libmm$(LIBEXT) EXTRADEFINES=$(KDEFINE) + +lib\libmm$(LIBEXT): mm\libmm$(LIBEXT) + $(Q) install mm\libmm$(LIBEXT) lib\libmm$(LIBEXT) + # pass1 and pass2 # # If the 2 pass build option is selected, then this pass1 target is @@ -685,7 +697,6 @@ depend: pass1dep pass2dep subdir_clean: $(Q) for %%G in ($(CLEANDIRS)) do ( if exist %%G\Makefile $(MAKE) -C %%G TOPDIR="$(TOPDIR)" clean ) $(Q) $(MAKE) -C tools -f Makefile.host TOPDIR="$(TOPDIR)" clean - $(Q) $(MAKE) -C mm -f Makefile.test TOPDIR="$(TOPDIR)" clean ifeq ($(CONFIG_BUILD_2PASS),y) $(Q) $(MAKE) -C $(CONFIG_PASS1_BUILDIR) TOPDIR="$(TOPDIR)" clean endif diff --git a/nuttx/arch/8051/src/up_allocateheap.c b/nuttx/arch/8051/src/up_allocateheap.c index b797b4420..f2238507a 100644 --- a/nuttx/arch/8051/src/up_allocateheap.c +++ b/nuttx/arch/8051/src/up_allocateheap.c @@ -1,7 +1,7 @@ /************************************************************ * up_allocateheap.c * - * Copyright (C) 2007 Gregory Nutt. All rights reserved. + * Copyright (C) 2007, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -38,11 +38,14 @@ ************************************************************/ #include <nuttx/config.h> + #include <sys/types.h> #include <sched.h> #include <debug.h> + #include <nuttx/arch.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> + #include "os_internal.h" #include "up_internal.h" #include "up_mem.h" @@ -84,6 +87,6 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size) #if CONFIG_MM_REGIONS > 1 void up_addregion(void) { - mm_addregion((FAR void*)UP_HEAP2_BASE, UP_HEAP2_END - UP_HEAP2_BASE); + kmm_addregion((FAR void*)UP_HEAP2_BASE, UP_HEAP2_END - UP_HEAP2_BASE); } #endif diff --git a/nuttx/arch/arm/src/calypso/calypso_heap.c b/nuttx/arch/arm/src/calypso/calypso_heap.c index 095fd1a5a..994b10059 100644 --- a/nuttx/arch/arm/src/calypso/calypso_heap.c +++ b/nuttx/arch/arm/src/calypso/calypso_heap.c @@ -42,7 +42,7 @@ ****************************************************************************/ #include <nuttx/config.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include <sys/types.h> #include <debug.h> @@ -96,7 +96,6 @@ void up_addregion(void) /* Configure the RHEA bridge with some sane default values */ calypso_rhea_cfg(0, 0, 0xff, 0, 1, 0, 0); - mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); - + kmm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); } #endif diff --git a/nuttx/arch/arm/src/imx/imx_allocateheap.c b/nuttx/arch/arm/src/imx/imx_allocateheap.c index 4831c8c8b..3279ddbd9 100644 --- a/nuttx/arch/arm/src/imx/imx_allocateheap.c +++ b/nuttx/arch/arm/src/imx/imx_allocateheap.c @@ -2,7 +2,7 @@ * arch/arm/src/imx/imx_allocateheap.c * arch/arm/src/chip/imx_allocateheap.c * - * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Copyright (C) 2009, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -44,7 +44,7 @@ #include <stdint.h> #include <debug.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include <nuttx/arch.h> #include <arch/board/board.h> @@ -105,14 +105,14 @@ void up_addregion(void) # if (CONFIG_DRAM_NUTTXENTRY & 0xffff0000) != CONFIG_DRAM_VSTART uint32_t start = CONFIG_DRAM_VSTART + 0x1000; uint32_t end = (CONFIG_DRAM_NUTTXENTRY & 0xffff0000); - mm_addregion((FAR void*)start, end - start); + kmm_addregion((FAR void*)start, end - start); # endif #endif /* Check for any additional memory regions */ #if defined(CONFIG_HEAP2_BASE) && defined(CONFIG_HEAP2_SIZE) - mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); + kmm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); #endif } #endif diff --git a/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c b/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c index 5da6ffa22..b09220a53 100644 --- a/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c +++ b/nuttx/arch/arm/src/lpc17xx/lpc17_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * arch/arm/src/lpc17xx/lpc17_allocateheap.c * - * Copyright (C) 2010-2011 Gregory Nutt. All rights reserved. + * Copyright (C) 2010-2011, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -224,7 +224,7 @@ void up_addregion(void) /* Yes... Add the AHB SRAM heap region. */ - mm_addregion((FAR void*)LPC17_AHB_HEAPBASE, LPC17_AHB_HEAPSIZE); + kmm_addregion((FAR void*)LPC17_AHB_HEAPBASE, LPC17_AHB_HEAPSIZE); #endif } #endif diff --git a/nuttx/arch/arm/src/lpc31xx/lpc31_allocateheap.c b/nuttx/arch/arm/src/lpc31xx/lpc31_allocateheap.c index 58772a630..204fdf6c1 100644 --- a/nuttx/arch/arm/src/lpc31xx/lpc31_allocateheap.c +++ b/nuttx/arch/arm/src/lpc31xx/lpc31_allocateheap.c @@ -1,7 +1,7 @@ /************************************************************************ * arch/arm/src/lpc31xx/lpc31_allocateheap.c * - * Copyright (C) 2009-2010 Gregory Nutt. All rights reserved. + * Copyright (C) 2009-2010, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -43,6 +43,7 @@ #include <debug.h> #include <nuttx/arch.h> +#include <nuttx/kmalloc.h> #include <arch/board/board.h> #include "arm.h" @@ -192,15 +193,15 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size) void up_addregion(void) { #if defined(CONFIG_ARCH_EXTSRAM0) && defined(CONFIG_ARCH_EXTSRAM0HEAP) - mm_addregion((FAR void*)LPC31_EXTSRAM0_VSECTION, CONFIG_ARCH_EXTSRAM0SIZE); + kmm_addregion((FAR void*)LPC31_EXTSRAM0_VSECTION, CONFIG_ARCH_EXTSRAM0SIZE); #endif #if defined(CONFIG_ARCH_EXTSRAM1) && defined(CONFIG_ARCH_EXTSRAM1HEAP) - mm_addregion((FAR void*)LPC31_EXTSRAM1_VSECTION, CONFIG_ARCH_EXTSRAM1SIZE); + kmm_addregion((FAR void*)LPC31_EXTSRAM1_VSECTION, CONFIG_ARCH_EXTSRAM1SIZE); #endif #if defined(CONFIG_ARCH_EXTDRAM) && defined(CONFIG_ARCH_EXTDRAMHEAP) - mm_addregion((FAR void*)LPC31_EXTSDRAM_VSECTION, CONFIG_ARCH_EXTDRAMSIZE); + kmm_addregion((FAR void*)LPC31_EXTSDRAM_VSECTION, CONFIG_ARCH_EXTDRAMSIZE); #endif } #endif diff --git a/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c b/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c index 7912f6c6e..ef96bcb0c 100644 --- a/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c +++ b/nuttx/arch/arm/src/lpc43xx/lpc43_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * arch/arm/src/lpc43xx/lpc43_allocateheap.c * - * Copyright (C) 2012 Gregory Nutt. All rights reserved. + * Copyright (C) 2012-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -43,7 +43,7 @@ #include <debug.h> #include <nuttx/arch.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include <arch/board/board.h> #include "chip.h" @@ -259,7 +259,7 @@ void up_addregion(void) #if CONFIG_MM_REGIONS > 1 /* Add the next SRAM region (which should exist) */ - mm_addregion((FAR void*)MM_REGION2_BASE, MM_REGION2_SIZE); + kmm_addregion((FAR void*)MM_REGION2_BASE, MM_REGION2_SIZE); #ifdef MM_REGION3_BASE /* Add the third SRAM region (which will not exist in configuration B) */ @@ -267,12 +267,12 @@ void up_addregion(void) #if CONFIG_MM_REGIONS > 2 /* Add the third SRAM region (which may not exist) */ - mm_addregion((FAR void*)MM_REGION3_BASE, MM_REGION3_SIZE); + kmm_addregion((FAR void*)MM_REGION3_BASE, MM_REGION3_SIZE); #if CONFIG_MM_REGIONS > 3 && defined(MM_DMAHEAP_BASE) /* Add the DMA region (which may not be available) */ - mm_addregion((FAR void*)MM_DMAHEAP_BASE, MM_DMAHEAP_SIZE); + kmm_addregion((FAR void*)MM_DMAHEAP_BASE, MM_DMAHEAP_SIZE); #endif /* CONFIG_MM_REGIONS > 3 && defined(MM_DMAHEAP_BASE) */ #endif /* CONFIG_MM_REGIONS > 2 */ @@ -281,7 +281,7 @@ void up_addregion(void) #if CONFIG_MM_REGIONS > 2 && defined(MM_DMAHEAP_BASE) /* Add the DMA region (which may not be available) */ - mm_addregion((FAR void*)MM_DMAHEAP_BASE, MM_DMAHEAP_SIZE); + kmm_addregion((FAR void*)MM_DMAHEAP_BASE, MM_DMAHEAP_SIZE); #endif /* CONFIG_MM_REGIONS > 3 && defined(MM_DMAHEAP_BASE) */ #endif /* MM_REGION3_BASE */ diff --git a/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c index 1f4b5fdd2..a5236e74d 100644 --- a/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c +++ b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * arch/arm/src/common/sam3u_allocateheap.c * - * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Copyright (C) 2010, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without diff --git a/nuttx/arch/arm/src/stm32/stm32_allocateheap.c b/nuttx/arch/arm/src/stm32/stm32_allocateheap.c index e4c21ccdb..b70a29b44 100644 --- a/nuttx/arch/arm/src/stm32/stm32_allocateheap.c +++ b/nuttx/arch/arm/src/stm32/stm32_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * arch/arm/src/stm32/up_allocateheap.c * - * Copyright (C) 2011-2012 Gregory Nutt. All rights reserved. + * Copyright (C) 2011-2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -43,7 +43,7 @@ #include <debug.h> #include <nuttx/arch.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include <arch/board/board.h> @@ -385,13 +385,13 @@ void up_addregion(void) /* Add the STM32F20xxx/STM32F40xxx CCM SRAM heap region. */ #ifndef CONFIG_STM32_CCMEXCLUDE - mm_addregion((FAR void*)SRAM2_START, SRAM2_END-SRAM2_START); + kmm_addregion((FAR void*)SRAM2_START, SRAM2_END-SRAM2_START); #endif /* Add the external FSMC SRAM heap region. */ #ifdef CONFIG_STM32_FSMC_SRAM - mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); + kmm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); #endif } #endif diff --git a/nuttx/arch/z16/src/common/up_allocateheap.c b/nuttx/arch/z16/src/common/up_allocateheap.c index 72686b751..62ea870e9 100644 --- a/nuttx/arch/z16/src/common/up_allocateheap.c +++ b/nuttx/arch/z16/src/common/up_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * common/up_allocateheap.c * - * Copyright (C) 2008 Gregory Nutt. All rights reserved. + * Copyright (C) 2008, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -41,8 +41,9 @@ #include <sys/types.h> #include <debug.h> + #include <nuttx/arch.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include <arch/board/board.h> #include "chip/chip.h" @@ -107,6 +108,6 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size) #if CONFIG_MM_REGIONS > 1 void up_addregion(void) { - mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); + kmm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); } #endif diff --git a/nuttx/arch/z80/src/common/up_allocateheap.c b/nuttx/arch/z80/src/common/up_allocateheap.c index 94b06e375..734d678e7 100644 --- a/nuttx/arch/z80/src/common/up_allocateheap.c +++ b/nuttx/arch/z80/src/common/up_allocateheap.c @@ -1,7 +1,7 @@ /**************************************************************************** * common/up_allocateheap.c * - * Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved. + * Copyright (C) 2007, 2008, 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> * * Redistribution and use in source and binary forms, with or without @@ -41,8 +41,9 @@ #include <sys/types.h> #include <debug.h> + #include <nuttx/arch.h> -#include <nuttx/mm.h> +#include <nuttx/kmalloc.h> #include "up_arch.h" #include "up_internal.h" @@ -109,6 +110,6 @@ void up_allocate_heap(FAR void **heap_start, size_t *heap_size) #if CONFIG_MM_REGIONS > 1 void up_addregion(void) { - mm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); + kmm_addregion((FAR void*)CONFIG_HEAP2_BASE, CONFIG_HEAP2_SIZE); } #endif diff --git a/nuttx/configs/README.txt b/nuttx/configs/README.txt index b0e6b16d1..d4486daaf 100644 --- a/nuttx/configs/README.txt +++ b/nuttx/configs/README.txt @@ -284,7 +284,7 @@ defconfig -- This is a configuration file similar to the Linux CONFIG_MM_REGIONS - If the architecture includes multiple regions of memory to allocate from, this specifies the number of memory regions that the memory manager must - handle and enables the API mm_addregion(start, end); + handle and enables the API mm_addregion(heap, start, end); CONFIG_MM_SMALL - Each memory allocation has a small allocation overhead. The size of that overhead is normally determined by the "width" of the address support by the MCU. MCUs that support diff --git a/nuttx/configs/rgmp/x86/cxxtest/defconfig b/nuttx/configs/rgmp/x86/cxxtest/defconfig index b1634e1e5..2b19192e4 100644 --- a/nuttx/configs/rgmp/x86/cxxtest/defconfig +++ b/nuttx/configs/rgmp/x86/cxxtest/defconfig @@ -63,7 +63,7 @@ CONFIG_ARCH_BOARD_RGMP=y # CONFIG_MM_REGIONS - If the architecture includes multiple # regions of memory to allocate from, this specifies the # number of memory regions that the memory manager must -# handle and enables the API mm_addregion(start, end); +# handle and enables the API mm_addregion(heap, start, end); # CONFIG_ARCH_LOWPUTC - architecture supports low-level, boot # time console output # CONFIG_MSEC_PER_TICK - The default system timer is 100Hz diff --git a/nuttx/configs/rgmp/x86/helloxx/defconfig b/nuttx/configs/rgmp/x86/helloxx/defconfig index 159195224..9266bad81 100644 --- a/nuttx/configs/rgmp/x86/helloxx/defconfig +++ b/nuttx/configs/rgmp/x86/helloxx/defconfig @@ -63,7 +63,7 @@ CONFIG_ARCH_BOARD_RGMP=y # CONFIG_MM_REGIONS - If the architecture includes multiple # regions of memory to allocate from, this specifies the # number of memory regions that the memory manager must -# handle and enables the API mm_addregion(start, end); +# handle and enables the API mm_addregion(heap, start, end); # CONFIG_ARCH_LOWPUTC - architecture supports low-level, boot # time console output # CONFIG_MSEC_PER_TICK - The default system timer is 100Hz diff --git a/nuttx/include/nuttx/kmalloc.h b/nuttx/include/nuttx/kmalloc.h index 6bf04ac0b..26d7768b3 100644 --- a/nuttx/include/nuttx/kmalloc.h +++ b/nuttx/include/nuttx/kmalloc.h @@ -77,8 +77,8 @@ extern "C" #ifndef CONFIG_NUTTX_KERNEL -# define kmm_initialize(h,s) mm_initialize(h,s) -# define kmm_addregion(h,s) mm_addregion(h,s) +# define kmm_initialize(h,s) mm_initialize(&g_mmheap,h,s) +# define kmm_addregion(h,s) mm_addregion(&g_mmheap,h,s) # define kmm_trysemaphore() mm_trysemaphore(&g_mmheap) # define kmm_givesemaphore() mm_givesemaphore(&g_mmheap) diff --git a/nuttx/include/nuttx/mm.h b/nuttx/include/nuttx/mm.h index 1345bbd13..825ef0313 100644 --- a/nuttx/include/nuttx/mm.h +++ b/nuttx/include/nuttx/mm.h @@ -233,8 +233,10 @@ EXTERN struct mm_heap_s g_mmheap; /* Functions contained in mm_initialize.c ***********************************/ -void mm_initialize(FAR void *heap_start, size_t heap_size); -void mm_addregion(FAR void *heapstart, size_t heapsize); +void mm_initialize(FAR struct mm_heap_s *heap, FAR void *heap_start, + size_t heap_size); +void mm_addregion(FAR struct mm_heap_s *heap, FAR void *heapstart, + size_t heapsize); /* Functions contained in mm_sem.c ******************************************/ diff --git a/nuttx/mm/Kconfig b/nuttx/mm/Kconfig index 911ae5545..9724eb407 100644 --- a/nuttx/mm/Kconfig +++ b/nuttx/mm/Kconfig @@ -37,7 +37,7 @@ config MM_REGIONS If the architecture includes multiple, non-contiguous regions of memory to allocate from, this specifies the number of memory regions that the memory manager must handle and enables the API - mm_addregion(start, end); + mm_addregion(heap, start, end); NOTE: If MM_MULTIHEAP is selected, then this maximum number of regions applies to all heaps. diff --git a/nuttx/mm/Makefile b/nuttx/mm/Makefile index da41f9f57..4b7412b43 100644 --- a/nuttx/mm/Makefile +++ b/nuttx/mm/Makefile @@ -1,7 +1,7 @@ ############################################################################ # mm/Makefile # -# Copyright (C) 2007, 2012 Gregory Nutt. All rights reserved. +# Copyright (C) 2007, 2012, 2013 Gregory Nutt. All rights reserved. # Author: Gregory Nutt <gnutt@nuttx.org> # # Redistribution and use in source and binary forms, with or without @@ -35,22 +35,29 @@ -include $(TOPDIR)/Make.defs -ASRCS = -CSRCS = mm_initialize.c mm_sem.c mm_addfreechunk.c mm_size2ndx.c mm_shrinkchunk.c \ - mm_malloc.c mm_zalloc.c mm_calloc.c mm_realloc.c \ - mm_memalign.c mm_free.c mm_mallinfo.c +ASRCS = +CSRCS = mm_initialize.c mm_sem.c mm_addfreechunk.c mm_size2ndx.c +CSRCS += mm_shrinkchunk.c mm_malloc.c mm_zalloc.c mm_calloc.c mm_realloc.c +CSRCS += mm_memalign.c mm_free.c mm_mallinfo.c + +ifeq ($(CONFIG_NUTTX_KERNEL),y) +CSRCS += kmm_initialize.c kmm_addregion.c kmm_semaphore.c +CSRCS += kmm_kmalloc.c kmm_kzalloc.c kmm_krealloc.c kmm_kfree.c +endif ifeq ($(CONFIG_GRAN),y) -CSRCS += mm_graninit.c mm_granalloc.c mm_granfree.c mm_grancritical.c +CSRCS += mm_graninit.c mm_granalloc.c mm_granfree.c mm_grancritical.c endif -AOBJS = $(ASRCS:.S=$(OBJEXT)) -COBJS = $(CSRCS:.c=$(OBJEXT)) +AOBJS = $(ASRCS:.S=$(OBJEXT)) +COBJS = $(CSRCS:.c=$(OBJEXT)) -SRCS = $(ASRCS) $(CSRCS) -OBJS = $(AOBJS) $(COBJS) +SRCS = $(ASRCS) $(CSRCS) +OBJS = $(AOBJS) $(COBJS) -BIN = libmm$(LIBEXT) +UBIN = libumm$(LIBEXT) +KBIN = libkmm$(LIBEXT) +BIN = libmm$(LIBEXT) all: $(BIN) @@ -63,14 +70,57 @@ $(COBJS): %$(OBJEXT): %.c $(BIN): $(OBJS) $(call ARCHIVE, $@, $(OBJS)) +ifneq ($(BIN),$(UBIN)) +.userlib: + $(Q) $(MAKE) $(UBIN) BIN=$(UBIN) TOPDIR=$(TOPDIR) EXTRADEFINES=$(EXTRADEFINES) + $(Q) touch .userlib + +$(UBIN): kclean .userlib +endif + +ifneq ($(BIN),$(KBIN)) +.kernlib: + $(Q) $(MAKE) $(KBIN) BIN=$(KBIN) TOPDIR=$(TOPDIR) EXTRADEFINES=$(EXTRADEFINES) + $(Q) touch .kernlib + +$(KBIN): uclean .kernlib +endif + .depend: Makefile $(SRCS) $(Q) $(MKDEP) "$(CC)" -- $(CFLAGS) -- $(SRCS) >Make.dep $(Q) touch $@ depend: .depend +# Clean Targets: +# Clean user-mode temporary files (retaining the UBIN binary) + +uclean: +ifneq ($(OBJEXT),) +ifeq ($(CONFIG_WINDOWS_NATIVE),y) + $(Q) if exist .userlib ]; then del *$(OBJEXT) +else + $(Q) ( if [ -f .userlib ]; then rm -f *$(OBJEXT); fi ) +endif +endif + $(call DELFILE, .userlib) + +# Clean kernel-mode temporary files (retaining the KBIN binary) + +kclean: +ifneq ($(OBJEXT),) +ifeq ($(CONFIG_WINDOWS_NATIVE),y) + $(Q) if exist .kernlib ]; then del *$(OBJEXT) +else + $(Q) ( if [ -f .kernlib ]; then rm -f *$(OBJEXT); fi ) +endif +endif + $(call DELFILE, .kernlib) + clean: $(call DELFILE, $(BIN)) + $(call DELFILE, $(UBIN)) + $(call DELFILE, $(KBIN)) $(call CLEAN) distclean: clean diff --git a/nuttx/mm/README.txt b/nuttx/mm/README.txt index 2668432e3..d2f307849 100644 --- a/nuttx/mm/README.txt +++ b/nuttx/mm/README.txt @@ -32,19 +32,7 @@ This directory contains the NuttX memory management logic. This include: o Alignment: All allocations are aligned to 8- or 4-bytes for large and small models, respectively. -2) Test Program. There is also a host-best test program that can be - used to verify the memory manager. These are the file: - - Makefile.test, mm_test.c, and mm_environment.h. - - Build instructions: - - make -f Makefile.test - - The executable will be built in the top-level directory as nuttx/mm_text - (or mm_test.exe under Cygwin). - -3) Granule Allocator. A non-standard granule allocator is also available +2) Granule Allocator. A non-standard granule allocator is also available in this directory The granule allocator allocates memory in units of a fixed sized block ("granule"). Allocations may be aligned to a user- provided address boundary. diff --git a/nuttx/sched/kmm_addregion.c b/nuttx/mm/kmm_addregion.c index 652367f5a..c53fe9cfe 100644 --- a/nuttx/sched/kmm_addregion.c +++ b/nuttx/mm/kmm_addregion.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_addregion.c + * mm/kmm_addregion.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -107,7 +107,7 @@ typedef void (*kmaddregion_t)(FAR void*, size_t); void kmm_addregion(FAR void *heap_start, size_t heap_size) { - return KADDREGION(heap_start, heap_size); + return KADDREGION(&g_kmmheap, heap_start, heap_size); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_initialize.c b/nuttx/mm/kmm_initialize.c index 6dd08951b..c5f5df05d 100644 --- a/nuttx/sched/kmm_initialize.c +++ b/nuttx/mm/kmm_initialize.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_initialize.c + * mm/kmm_initialize.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -110,4 +110,4 @@ void kmm_initialize(FAR void *heap_start, size_t heap_size) return KINITIALIZE(heap_start, heap_size); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_kfree.c b/nuttx/mm/kmm_kfree.c index 0f0eaa6c2..c4e31ebfa 100644 --- a/nuttx/sched/kmm_kfree.c +++ b/nuttx/mm/kmm_kfree.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_kfree.c + * mm/kmm_kfree.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -107,4 +107,4 @@ void kfree(FAR void *mem) return KFREE(mem); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_kmalloc.c b/nuttx/mm/kmm_kmalloc.c index 5e34c157f..e2c347342 100644 --- a/nuttx/sched/kmm_kmalloc.c +++ b/nuttx/mm/kmm_kmalloc.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_kmalloc.c + * mm/kmm_kmalloc.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -107,4 +107,4 @@ FAR void *kmalloc(size_t size) return KMALLOC(size); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_krealloc.c b/nuttx/mm/kmm_krealloc.c index 3d3726566..d5bebff38 100644 --- a/nuttx/sched/kmm_krealloc.c +++ b/nuttx/mm/kmm_krealloc.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_krealloc.c + * mm/kmm_krealloc.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -108,4 +108,4 @@ FAR void *krealloc(FAR void *oldmem, size_t size) return KREALLOC(oldmem, size); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_kzalloc.c b/nuttx/mm/kmm_kzalloc.c index 42bcfcc0f..4775312c6 100644 --- a/nuttx/sched/kmm_kzalloc.c +++ b/nuttx/mm/kmm_kzalloc.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_kzalloc.c + * mm/kmm_kzalloc.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -107,4 +107,4 @@ FAR void *kzalloc(size_t size) return KZALLOC(size); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/sched/kmm_semaphore.c b/nuttx/mm/kmm_semaphore.c index 7fce747b6..b391e5151 100644 --- a/nuttx/sched/kmm_semaphore.c +++ b/nuttx/mm/kmm_semaphore.c @@ -1,5 +1,5 @@ /************************************************************************ - * sched/kmm_semaphore.c + * mm/kmm_semaphore.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt <gnutt@nuttx.org> @@ -40,7 +40,7 @@ #include <nuttx/config.h> #include <nuttx/kmalloc.h> -#ifdef CONFIG_NUTTX_KERNEL +#if defined(CONFIG_NUTTX_KERNEL) && defined(__KERNEL__) /* This logic is all tentatively and, hopefully, will grow in usability. * For now, the kernel-mode build uses the memory manager that is @@ -137,4 +137,4 @@ void kmm_givesemaphore(void) KGIVESEMAPHORE(); } -#endif /* CONFIG_NUTTX_KERNEL */ +#endif /* CONFIG_NUTTX_KERNEL && __KERNEL__ */ diff --git a/nuttx/mm/mm_initialize.c b/nuttx/mm/mm_initialize.c index 37df3ab5f..8930f6190 100644 --- a/nuttx/mm/mm_initialize.c +++ b/nuttx/mm/mm_initialize.c @@ -65,7 +65,11 @@ struct mm_heap_s g_mmheap; ****************************************************************************/ /**************************************************************************** - * Name: _mm_addregion + * Public Functions + ****************************************************************************/ + +/**************************************************************************** + * Name: mm_addregion * * Description: * This function adds a region of contiguous memory to the selected heap. @@ -82,8 +86,8 @@ struct mm_heap_s g_mmheap; * ****************************************************************************/ -static inline void _mm_addregion(FAR struct mm_heap_s *heap, - FAR void *heapstart, size_t heapsize) +void mm_addregion(FAR struct mm_heap_s *heap, FAR void *heapstart, + size_t heapsize) { FAR struct mm_freenode_s *node; uintptr_t heapbase; @@ -149,7 +153,7 @@ static inline void _mm_addregion(FAR struct mm_heap_s *heap, } /**************************************************************************** - * Name: _mm_initialize + * Name: mm_initialize * * Description: * Initialize the selected heap data structures, providing the initial @@ -167,8 +171,8 @@ static inline void _mm_addregion(FAR struct mm_heap_s *heap, * ****************************************************************************/ -static inline void _mm_initialize(FAR struct mm_heap_s *heap, - FAR void *heapstart, size_t heapsize) +void mm_initialize(FAR struct mm_heap_s *heap, FAR void *heapstart, + size_t heapsize) { int i; @@ -209,62 +213,5 @@ static inline void _mm_initialize(FAR struct mm_heap_s *heap, /* Add the initial region of memory to the heap */ - _mm_addregion(heap, heapstart, heapsize); -} - -/**************************************************************************** - * Public Functions - ****************************************************************************/ - -/**************************************************************************** - * Name: mm_initialize - * - * Description: - * This this function is called during initialization to initialize the - * user heap. - * - * Parameters: - * heapstart - Start of the initial heap region - * heapsize - Size of the initial heap region - * - * Return Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -#if !defined(CONFIG_NUTTX_KERNEL) || !defined(__KERNEL__) - -void mm_initialize(FAR void *heapstart, size_t heapsize) -{ - _mm_initialize(&g_mmheap, heapstart, heapsize); + mm_addregion(heap, heapstart, heapsize); } - -#endif - -/**************************************************************************** - * Name: mm_addregion - * - * Description: - * This function adds a region of contiguous memory to the user heap. - * - * Parameters: - * heapstart - Start of the heap region - * heapsize - Size of the heap region - * - * Return Value: - * None - * - * Assumptions: - * - ****************************************************************************/ - -#if !defined(CONFIG_NUTTX_KERNEL) || !defined(__KERNEL__) - -void mm_addregion(FAR void *heapstart, size_t heapsize) -{ - _mm_addregion(&g_mmheap, heapstart, heapsize); -} - -#endif diff --git a/nuttx/sched/Makefile b/nuttx/sched/Makefile index 1292eb449..0ee88bf8e 100644 --- a/nuttx/sched/Makefile +++ b/nuttx/sched/Makefile @@ -181,9 +181,6 @@ endif IRQ_SRCS = irq_initialize.c irq_attach.c irq_dispatch.c irq_unexpectedisr.c -KMM_SRCS = kmm_initialize.c kmm_addregion.c kmm_semaphore.c -KMM_SRCS = kmm_kmalloc.c kmm_kzalloc.c kmm_krealloc.c kmm_kfree.c - CSRCS = $(MISC_SRCS) $(TSK_SRCS) $(GRP_SRCS) $(SCHED_SRCS) $(WDOG_SRCS) CSRCS += $(TIME_SRCS) $(SEM_SRCS) $(TIMER_SRCS) $(PGFILL_SRCS) CSRCS += $(IRQ_SRCS) @@ -208,10 +205,6 @@ ifneq ($(CONFIG_DISABLE_ENVIRON),y) CSRCS += $(ENV_SRCS) endif -ifeq ($(CONFIG_NUTTX_KERNEL),y) -CSRCS += $(KMM_SRCS) -endif - COBJS = $(CSRCS:.c=$(OBJEXT)) SRCS = $(ASRCS) $(CSRCS) diff --git a/nuttx/sched/os_bringup.c b/nuttx/sched/os_bringup.c index 2fcb9ff7b..fbaad1a7a 100644 --- a/nuttx/sched/os_bringup.c +++ b/nuttx/sched/os_bringup.c @@ -195,6 +195,12 @@ int os_bringup(void) /* Once the operating system has been initialized, the system must be * started by spawning the user init thread of execution. This is the * first user-mode thead. + * + * In a kernel build (CONFIG_NUTTX_KERNEL), it is expected that this user + * initialization function will: + * + * - Call mm_initialized() to initialize the user memmory manager, and + * - Is so configured, call work_usrstart() to start the user work thread. */ svdbg("Starting init thread\n"); |