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https://gitlab.rtems.org/rtems/rtos/rtems.git
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2010-06-15 Joel Sherrill <joel.sherrill@oarcorp.com>
PR 1561/cpukit * .cvsignore, ChangeLog, Makefile.am, Makefile.in, README, context.S, cpu.c, preinstall.am, rtems/asm.h, rtems/score/cpu.h, rtems/score/sparc64.h, rtems/score/types.h: New files.
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Makefile
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Makefile.in
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@@ -0,0 +1,31 @@
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2010-06-15 Joel Sherrill <joel.sherrill@oarcorp.com>
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PR 1561/cpukit
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* .cvsignore, ChangeLog, Makefile.am, Makefile.in, README, context.S,
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cpu.c, preinstall.am, rtems/asm.h, rtems/score/cpu.h,
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rtems/score/sparc64.h, rtems/score/types.h: New files.
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2010-05-10 Gedare Bloom <gedare@gwmail.gwu.edu>
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* README: Explain separation of score between here and libcpu.
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2010-05-03 Gedare Bloom <gedare@gwmail.gwu.edu>
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* rtems/score/cpu.h, context.S, cpu.c: Remove privileged
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registers from context.
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2010-05-03 Gedare Bloom <gedare@gwmail.gwu.edu>
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* cpu.c: Remove interrupt handling code. Moved to libcpu.
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2010-05-03 Gedare Bloom <gedare@gwmail.gwu.edu>
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* context.S: renamed cpu_asm.S to context.S
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2010-05-02 Gedare Bloom <gedare@gwmail.gwu.edu>
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* cpu_asm.S: Remove interrupt handling code. Moved to libcpu.
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2009-10-19 Eugen Leontie <eugen@gwu.edu>
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Added sparc64 architecture
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##
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## $Id$
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##
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include $(top_srcdir)/automake/compile.am
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include_rtemsdir = $(includedir)/rtems
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include_rtems_HEADERS = rtems/asm.h
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#include_rtems_sparc64dir = $(includedir)/rtems/sparc64
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#include_rtems_sparc64_HEADERS =
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include_rtems_scoredir = $(includedir)/rtems/score
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include_rtems_score_HEADERS = rtems/score/sparc64.h rtems/score/cpu.h \
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rtems/score/types.h
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noinst_LIBRARIES = libscorecpu.a
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libscorecpu_a_SOURCES = context.S cpu.c
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libscorecpu_a_CPPFLAGS = $(AM_CPPFLAGS)
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include $(srcdir)/preinstall.am
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include $(top_srcdir)/automake/local.am
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#
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# $Id$
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#
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A lot of explanation needed, will do when known.
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The score/cpu/sparc64 contains only code that can execute without accessing
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privileged registers or using privileged instructions. This was done because
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the privileged registers differ between the sun4u and sun4v models.
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The model specific and privileged code that would normally be found in
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score/cpu/sparc64 resides in libcpu/sparc64/@RTEMS_CPU_MODEL@/score or in
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libcpu/sparc64/shared/score directory. This is primarily the interrupt
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handling code.
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/*
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* SPARC-v9 Dependent Source
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*
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* COPYRIGHT (c) 1989-2007.
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* On-Line Applications Research Corporation (OAR).
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*
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* This file is based on the SPARC cpu.c file. Modifications are made to
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* provide support for the SPARC-v9.
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* COPYRIGHT (c) 2010. Gedare Bloom.
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#include <rtems/system.h>
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#include <rtems/asm.h>
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#include <rtems/score/isr.h>
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#include <rtems/rtems/cache.h>
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/*PAGE
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*
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* _CPU_Initialize
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*
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* This routine performs processor dependent initialization.
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*
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* INPUT PARAMETERS: NONE
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*
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* Output Parameters: NONE
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*
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* NOTE: There is no need to save the pointer to the thread dispatch routine.
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* The SPARC's assembly code can reference it directly with no problems.
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*/
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void _CPU_Initialize(void)
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{
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#if (SPARC_HAS_FPU == 1)
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Context_Control_fp *pointer;
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/*
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* This seems to be the most appropriate way to obtain an initial
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* FP context on the SPARC. The NULL fp context is copied in to
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* the task's FP context during Context_Initialize_fp.
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*/
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pointer = &_CPU_Null_fp_context;
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_CPU_Context_save_fp( &pointer );
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#endif
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/*
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* Since no tasks have been created yet and no interrupts have occurred,
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* there is no way that the currently executing thread can have an
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* _ISR_Dispatch stack frame on its stack.
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*/
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_CPU_ISR_Dispatch_disable = 0;
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}
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/*PAGE
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*
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* _CPU_Context_Initialize
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*
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* This kernel routine initializes the basic non-FP context area associated
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* with each thread.
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*
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* Input parameters:
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* the_context - pointer to the context area
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* stack_base - address of memory for the SPARC
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* size - size in bytes of the stack area
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* new_level - interrupt level for this context area
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* entry_point - the starting execution point for this this context
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* is_fp - TRUE if this context is associated with an FP thread
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*
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* Output parameters: NONE
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*/
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void _CPU_Context_Initialize(
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Context_Control *the_context,
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void *stack_base,
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uint32_t size,
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uint32_t new_level,
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void *entry_point,
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bool is_fp
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)
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{
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uint64_t stack_high; /* highest "stack aligned" address */
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uint32_t the_size;
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/*
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* On CPUs with stacks which grow down (i.e. SPARC), we build the stack
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* based on the stack_high address.
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*/
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stack_high = ((uint64_t)(stack_base) + size);
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stack_high &= ~(CPU_STACK_ALIGNMENT - 1);
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the_size = size & ~(CPU_STACK_ALIGNMENT - 1);
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/*
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* See the README in this directory for a diagram of the stack.
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*/
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the_context->o7 = ((uint64_t) entry_point) - 8;
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the_context->o6_sp = stack_high - CPU_MINIMUM_STACK_FRAME_SIZE - STACK_BIAS;
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the_context->i6_fp = 0;
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/* PSTATE used to be built here, but is no longer included in context */
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/*
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* Since THIS thread is being created, there is no way that THIS
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* thread can have an _ISR_Dispatch stack frame on its stack.
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*/
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the_context->isr_dispatch_disable = 0;
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}
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## Automatically generated by ampolish3 - Do not edit
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if AMPOLISH3
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$(srcdir)/preinstall.am: Makefile.am
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$(AMPOLISH3) $(srcdir)/Makefile.am > $(srcdir)/preinstall.am
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endif
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PREINSTALL_DIRS =
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DISTCLEANFILES = $(PREINSTALL_DIRS)
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all-am: $(PREINSTALL_FILES)
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PREINSTALL_FILES =
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CLEANFILES = $(PREINSTALL_FILES)
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$(PROJECT_INCLUDE)/rtems/$(dirstamp):
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@$(MKDIR_P) $(PROJECT_INCLUDE)/rtems
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@: > $(PROJECT_INCLUDE)/rtems/$(dirstamp)
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PREINSTALL_DIRS += $(PROJECT_INCLUDE)/rtems/$(dirstamp)
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$(PROJECT_INCLUDE)/rtems/asm.h: rtems/asm.h $(PROJECT_INCLUDE)/rtems/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/rtems/asm.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems/asm.h
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$(PROJECT_INCLUDE)/rtems/score/$(dirstamp):
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@$(MKDIR_P) $(PROJECT_INCLUDE)/rtems/score
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@: > $(PROJECT_INCLUDE)/rtems/score/$(dirstamp)
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PREINSTALL_DIRS += $(PROJECT_INCLUDE)/rtems/score/$(dirstamp)
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$(PROJECT_INCLUDE)/rtems/score/sparc64.h: rtems/score/sparc64.h $(PROJECT_INCLUDE)/rtems/score/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/rtems/score/sparc64.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems/score/sparc64.h
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$(PROJECT_INCLUDE)/rtems/score/cpu.h: rtems/score/cpu.h $(PROJECT_INCLUDE)/rtems/score/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/rtems/score/cpu.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems/score/cpu.h
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$(PROJECT_INCLUDE)/rtems/score/types.h: rtems/score/types.h $(PROJECT_INCLUDE)/rtems/score/$(dirstamp)
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$(INSTALL_DATA) $< $(PROJECT_INCLUDE)/rtems/score/types.h
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PREINSTALL_FILES += $(PROJECT_INCLUDE)/rtems/score/types.h
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/**
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* @file rtems/asm.h
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*
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* This include file attempts to address the problems
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* caused by incompatible flavors of assemblers and
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* toolsets. It primarily addresses variations in the
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* use of leading underscores on symbols and the requirement
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* that register names be preceded by a %.
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*/
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/*
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* NOTE: The spacing in the use of these macros
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* is critical to them working as advertised.
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*
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* COPYRIGHT:
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*
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* This file is based on similar code found in newlib available
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* from ftp.cygnus.com. The file which was used had no copyright
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* notice. This file is freely distributable as long as the source
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* of the file is noted.
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*
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* $Id$
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*/
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#ifndef _RTEMS_ASM_H
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#define _RTEMS_ASM_H
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/*
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* Indicate we are in an assembly file and get the basic CPU definitions.
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*/
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#ifndef ASM
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#define ASM
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#endif
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#ifndef __ASM__
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#define __ASM__
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#endif
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#include <rtems/score/cpuopts.h>
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#include <rtems/score/cpu.h>
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/*
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* Recent versions of GNU cpp define variables which indicate the
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* need for underscores and percents. If not using GNU cpp or
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* the version does not support this, then you will obviously
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* have to define these as appropriate.
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*/
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/* XXX __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ do not work on gcc 2.7.0 */
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/* XXX The following ifdef magic fixes the problem but results in a warning */
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/* XXX when compiling assembly code. */
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#ifndef __USER_LABEL_PREFIX__
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#define __USER_LABEL_PREFIX__ _
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#endif
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#ifndef __REGISTER_PREFIX__
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#define __REGISTER_PREFIX__
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#endif
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#include <rtems/concat.h>
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/* Use the right prefix for global labels. */
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#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__, x)
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/* Use the right prefix for registers. */
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#define REG(x) CONCAT1 (__REGISTER_PREFIX__, x)
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/*
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* define macros for all of the registers on this CPU
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*
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* EXAMPLE: #define d0 REG (d0)
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*/
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/*
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* Define macros to handle section beginning and ends.
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*/
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#define BEGIN_CODE_DCL .text
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#define END_CODE_DCL
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#define BEGIN_DATA_DCL .data
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#define END_DATA_DCL
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#define BEGIN_CODE .text
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#define END_CODE
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#define BEGIN_DATA
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#define END_DATA
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#define BEGIN_BSS
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#define END_BSS
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#define END
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/*
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* Following must be tailor for a particular flavor of the C compiler.
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* They may need to put underscores in front of the symbols.
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*/
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#define PUBLIC(sym) .globl SYM (sym)
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#define EXTERN(sym) .globl SYM (sym)
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#endif
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/**
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* @file rtems/score/types.h
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*/
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/*
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* This include file contains type definitions pertaining to the
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* SPARC-v9 processor family.
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*
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* COPYRIGHT (c) 1989-1999.
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* On-Line Applications Research Corporation (OAR).
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.com/license/LICENSE.
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*
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* $Id$
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*/
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#ifndef _RTEMS_SCORE_TYPES_H
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#define _RTEMS_SCORE_TYPES_H
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#ifndef ASM
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#include <stdbool.h>
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#include <stdint.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*
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* This section defines the basic types for this processor.
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*/
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typedef uint16_t Priority_Bit_map_control;
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typedef void sparc_isr;
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typedef void ( *sparc_isr_entry )( void );
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#ifdef RTEMS_DEPRECATED_TYPES
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typedef bool boolean; /* Boolean value */
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typedef float single_precision; /* single precision float */
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typedef double double_precision; /* double precision float */
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* !ASM */
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#endif
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Reference in new issue
Block a user