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SMP: Clean CPU0 D-Cache before starting new CPU; Invalidate D-Cache when new CPU started.

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This commit is contained in:
Gregory Nutt 2016-05-20 12:39:02 -06:00
parent eeb4a5c230
commit 07acd5327a
31 changed files with 24 additions and 319 deletions
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4
arch/arm/src/armv7-a/arm_addrenv.c
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@ -141,10 +141,6 @@
# error CONFIG_ARCH_HEAP_VBASE not aligned to section boundary
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_addrenv_kstack.c
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@ -121,18 +121,6 @@
#if defined(CONFIG_ARCH_ADDRENV) && defined(CONFIG_ARCH_KERNEL_STACK)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_addrenv_shm.c
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@ -55,18 +55,6 @@
#if defined(CONFIG_BUILD_KERNEL) && defined(CONFIG_MM_SHM)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

8
arch/arm/src/armv7-a/arm_addrenv_ustack.c
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@ -116,14 +116,6 @@
# error CONFIG_ARCH_STACK_VBASE not aligned to section boundary
#endif
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_addrenv_utils.c
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@ -53,18 +53,6 @@
#ifdef CONFIG_ARCH_ADDRENV
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

8
arch/arm/src/armv7-a/arm_allocpage.c
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@ -54,10 +54,6 @@
#include "pg_macros.h"
#include "up_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Types
****************************************************************************/
@ -108,10 +104,6 @@ static L1ndx_t g_ptemap[CONFIG_PAGING_NPPAGED];
static bool g_pgwrap;
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_checkmapping.c
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@ -51,18 +51,6 @@
#ifdef CONFIG_PAGING
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_coherent_dcache.c
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@ -46,18 +46,6 @@
#include <nuttx/arch.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_copyfullstate.c
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@ -44,18 +44,6 @@
#include "up_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

9
arch/arm/src/armv7-a/arm_cpustart.c
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@ -46,6 +46,7 @@
#include "up_internal.h"
#include "gic.h"
#include "cp15_cacheops.h"
#include "sched/sched.h"
#ifdef CONFIG_SMP
@ -74,6 +75,10 @@ int arm_start_handler(int irq, FAR void *context)
{
FAR struct tcb_s *tcb = this_task();
/* Invalidate CPUn L1 so that is will be reloaded from coherent L2. */
cp15_invalidate_dcache_all();
/* Reset scheduler parameters */
sched_resume_scheduler(tcb);
@ -118,6 +123,10 @@ int up_cpu_start(int cpu)
{
DEBUGASSERT(cpu >= 0 && cpu < CONFIG_SMP_NCPUS && cpu != this_cpu());
/* Make the content of CPU0 L1 cache has been written to coherent L2 */
cp15_clean_dcache(CONFIG_RAM_START, CONFIG_RAM_END - 1);
/* Execute SGI1 */
return arm_cpu_sgi(GIC_IRQ_SGI1, (1 << cpu));

16
arch/arm/src/armv7-a/arm_doirq.c
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@ -52,22 +52,6 @@
#include "group/group.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_elf.c
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@ -48,18 +48,6 @@
#include <nuttx/arch.h>
#include <nuttx/binfmt/elf.h>
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

16
arch/arm/src/armv7-a/arm_fullcontextrestore.S
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@ -44,28 +44,12 @@
.file "arm_fullcontextrestore.S"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Symbols
****************************************************************************/
.globl up_fullcontextrestore
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

14
arch/arm/src/armv7-a/arm_gicv2.c
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@ -166,12 +166,12 @@ void arm_gic_initialize(void)
/* Registers with 8-bits per interrupt */
putreg32(0x80808080, GIC_ICDIPR(0)); /* SGI[3:0] priority */
putreg32(0x80808080, GIC_ICDIPR(4)); /* SGI[4:7] priority */
putreg32(0x80808080, GIC_ICDIPR(8)); /* SGI[8:11] priority */
putreg32(0x80808080, GIC_ICDIPR(12)); /* SGI[12:15] priority */
putreg32(0x80000000, GIC_ICDIPR(24)); /* PPI[0] priority */
putreg32(0x80808080, GIC_ICDIPR(28)); /* PPI[1:4] priority */
putreg32(0x80808080, GIC_ICDIPR(0)); /* SGI[3:0] priority */
putreg32(0x80808080, GIC_ICDIPR(4)); /* SGI[4:7] priority */
putreg32(0x80808080, GIC_ICDIPR(8)); /* SGI[8:11] priority */
putreg32(0x80808080, GIC_ICDIPR(12)); /* SGI[12:15] priority */
putreg32(0x80000000, GIC_ICDIPR(24)); /* PPI[0] priority */
putreg32(0x80808080, GIC_ICDIPR(28)); /* PPI[1:4] priority */
/* Set the binary point register.
*
@ -527,7 +527,7 @@ int up_prioritize_irq(int irq, int priority)
* Name: arm_gic_irq_trigger
*
* Description:
* Set the trigger type for the specificd IRQ source and the current CPU.
* Set the trigger type for the specified IRQ source and the current CPU.
*
* Since this API is not supported on all architectures, it should be
* avoided in common implementations where possible.

12
arch/arm/src/armv7-a/arm_initialstate.c
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@ -48,18 +48,6 @@
#include "up_internal.h"
#include "up_arch.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_mmu.c
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@ -44,18 +44,6 @@
#include "cache.h"
#include "mmu.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

7
arch/arm/src/armv7-a/arm_pgalloc.c
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@ -54,13 +54,6 @@
#ifdef CONFIG_BUILD_KERNEL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions

12
arch/arm/src/armv7-a/arm_pginitialize.c
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@ -49,18 +49,6 @@
#ifdef CONFIG_PAGING
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

11
arch/arm/src/armv7-a/arm_physpgaddr.c
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@ -55,17 +55,6 @@
#ifdef CONFIG_MM_PGALLOC
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_prefetchabort.c
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@ -61,18 +61,6 @@
#include "sched/sched.h"
#include "up_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_schedulesigaction.c
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@ -53,18 +53,6 @@
#ifndef CONFIG_DISABLE_SIGNALS
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_signal_dispatch.c
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@ -47,18 +47,6 @@
#if ((defined(CONFIG_BUILD_PROTECTED) && defined(__KERNEL__)) || \
defined(CONFIG_BUILD_KERNEL)) && !defined(CONFIG_DISABLE_SIGNALS)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

2
arch/arm/src/armv7-a/arm_syscall.c
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@ -77,7 +77,7 @@
#endif
/****************************************************************************
* Private Data
* Private Functions
****************************************************************************/
/****************************************************************************

12
arch/arm/src/armv7-a/arm_unblocktask.c
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@ -49,18 +49,6 @@
#include "clock/clock.h"
#include "up_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_undefinedinsn.c
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@ -58,18 +58,6 @@
#include "up_internal.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

12
arch/arm/src/armv7-a/arm_va2pte.c
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@ -52,18 +52,6 @@
#ifdef CONFIG_PAGING
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

8
arch/arm/src/armv7-a/arm_vectors.S
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@ -45,10 +45,6 @@
.file "arm_vectors.S"
/************************************************************************************
* Pre-processor Definitions
************************************************************************************/
/************************************************************************************
* Private Data
************************************************************************************/
@ -69,10 +65,6 @@ g_fiqtmp:
.word 0 /* Saved spsr */
#endif
/************************************************************************************
* Assembly Macros
************************************************************************************/
/************************************************************************************
* Private Functions
************************************************************************************/

12
arch/arm/src/armv7-a/arm_virtpgaddr.c
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@ -43,18 +43,6 @@
#if defined(CONFIG_MM_PGALLOC) && defined(CONFIG_ARCH_PGPOOL_MAPPING)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/

8
arch/arm/src/armv7-a/crt0.c
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@ -46,14 +46,6 @@
#ifdef CONFIG_BUILD_KERNEL
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/

7
configs/sabre-6quad/README.txt
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@ -468,6 +468,13 @@ Open Issues:
CPU (which may not be CPU0). Perhaps that should be a spinlock to prohibit
execution of interrupts on CPU0 when other CPUs are in a critical section?
2. Cache Concurency. This is a difficult problem. There is logic in place now to
clean CPU0 D-cache before starting a new CPU and for invalidating the D-Cache
when the new CPU is started.
But there are many, many more cache coherency issues. This could, in face, be
a showstopping issue.
Configurations
==============

21
sched/irq/irq_dispatch.c
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@ -45,26 +45,6 @@
#include "irq/irq.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Private Type Declarations
****************************************************************************/
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Private Data
****************************************************************************/
/****************************************************************************
* Private Function Prototypes
****************************************************************************/
/****************************************************************************
* Public Functions
****************************************************************************/
@ -102,4 +82,3 @@ void irq_dispatch(int irq, FAR void *context)
vector(irq, context);
}