forked from Imagelibrary/rtems
5b0e355ed7
Move declarations of bsp_interrupt_get_affinity() and bsp_interrupt_set_affinity() to <bsp/irq-generic.h>. Canonicalize the <bsp/irq.h> includes. Implement bsp_interrupt_get_affinity() and bsp_interrupt_set_affinity() only if needed (usually RTEMS_SMP). Provide stub implementations for i386 to fix build errors.
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/**
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* @file
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* @ingroup RTEMSBSPsSPARCLEON3
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* @brief LEON3 SMP BSP Support
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*/
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/*
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* COPYRIGHT (c) 1989-2011.
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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.org/license/LICENSE.
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*/
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#include <bsp.h>
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#include <bsp/bootcard.h>
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#include <bsp/fatal.h>
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#include <bsp/irq-generic.h>
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#include <bsp/leon3.h>
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#include <rtems/bspIo.h>
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#include <rtems/sysinit.h>
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#include <rtems/score/assert.h>
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#include <rtems/score/smpimpl.h>
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#include <stdlib.h>
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#if !defined(__leon__) || defined(RTEMS_PARAVIRT)
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uint32_t _CPU_SMP_Get_current_processor( void )
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{
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return _LEON3_Get_current_processor();
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}
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#endif
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static void bsp_inter_processor_interrupt( void *arg )
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{
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(void) arg;
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_SMP_Inter_processor_interrupt_handler(_Per_CPU_Get());
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}
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void bsp_start_on_secondary_processor(Per_CPU_Control *cpu_self)
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{
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if ( !leon3_data_cache_snooping_enabled() ) {
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bsp_fatal( LEON3_FATAL_INVALID_CACHE_CONFIG_SECONDARY_PROCESSOR );
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}
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_SMP_Start_multitasking_on_secondary_processor(cpu_self);
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}
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static rtems_interrupt_entry leon3_inter_processor_interrupt_entry =
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RTEMS_INTERRUPT_ENTRY_INITIALIZER(
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bsp_inter_processor_interrupt,
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NULL,
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"IPI"
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);
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static void leon3_install_inter_processor_interrupt( void )
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{
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rtems_status_code sc;
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rtems_vector_number irq;
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irq = LEON3_mp_irq;
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bsp_interrupt_set_affinity( irq, _SMP_Get_online_processors() );
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sc = rtems_interrupt_entry_install(
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irq,
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RTEMS_INTERRUPT_SHARED,
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&leon3_inter_processor_interrupt_entry
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);
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_Assert_Unused_variable_equals( sc, RTEMS_SUCCESSFUL );
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}
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uint32_t _CPU_SMP_Initialize( void )
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{
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if ( !leon3_data_cache_snooping_enabled() )
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bsp_fatal( LEON3_FATAL_INVALID_CACHE_CONFIG_BOOT_PROCESSOR );
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return leon3_get_cpu_count(LEON3_IrqCtrl_Regs);
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}
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bool _CPU_SMP_Start_processor( uint32_t cpu_index )
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{
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#if defined(RTEMS_DEBUG)
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printk( "Waking CPU %d\n", cpu_index );
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#endif
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grlib_store_32(
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&LEON3_IrqCtrl_Regs->mpstat,
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IRQAMP_MPSTAT_STATUS(1U << cpu_index)
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);
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return true;
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}
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void _CPU_SMP_Finalize_initialization( uint32_t cpu_count )
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{
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(void) cpu_count;
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#if !defined(RTEMS_DRVMGR_STARTUP)
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leon3_install_inter_processor_interrupt();
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#endif
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}
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void _CPU_SMP_Prepare_start_multitasking( void )
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{
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/* Do nothing */
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}
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void _CPU_SMP_Send_interrupt(uint32_t target_processor_index)
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{
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/* send interrupt to destination CPU */
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grlib_store_32(
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&LEON3_IrqCtrl_Regs->piforce[target_processor_index],
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1U << LEON3_mp_irq
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);
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}
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#if defined(RTEMS_DRVMGR_STARTUP)
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RTEMS_SYSINIT_ITEM(
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leon3_install_inter_processor_interrupt,
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RTEMS_SYSINIT_DRVMGR_LEVEL_1,
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RTEMS_SYSINIT_ORDER_LAST_BUT_4
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);
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#endif
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