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fix noise production

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This commit is contained in:
Simon Pickartz 2011-08-25 12:59:32 -07:00
parent 17b104d11c
commit b3ee8f1a07
4 changed files with 26 additions and 23 deletions
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2
arch/x86/mm/svm.c
View file

@ -128,7 +128,7 @@ int svm_access_request(size_t addr)
icc_send_irq(remote_rank);
/* check for incoming messages */
icc_mail_check();
icc_mail_check(0);
while (page_owner[pageid] != my_ue) {
NOP4;

6
arch/x86/scc/iRCCE_mailbox.c
View file

@ -410,12 +410,12 @@ int iRCCE_mail_send(
// if dest mailbox is full, check for incoming mail
RC_cache_invalidate();
while( iRCCE_mailbox_send[dest]->sent ) {
// iRCCE_mailbox_check();
iRCCE_mailbox_check();
RC_cache_invalidate();
}
/* disable interrupts */
flags = irq_nested_disable();
// flags = irq_nested_disable();
// check if mailbox is closed
RCCE_acquire_lock( dest );
@ -451,7 +451,7 @@ int iRCCE_mail_send(
RCCE_release_lock( dest );
/* enable interrupts */
irq_nested_enable(flags);
// irq_nested_enable(flags);
return iRCCE_SUCCESS;
}

39
arch/x86/scc/icc.c
View file

@ -240,7 +240,7 @@ int icc_halt(void)
#define ROUNDS 10000
#define CORE_A 0 // sender
#define CORE_B 1 // receiver
#define CORE_B 4 // receiver
int icc_send_gic_irq(int core_num) {
@ -268,7 +268,7 @@ static inline void icc_mail_check_tag(iRCCE_MAIL_HEADER* mail) {
static int count = 0;
if( !mail ) return;
switch( mail->tag ) {
case iRCCE_ANYLENGTH:
recv_buffer = (char*)kmalloc( mail->size );
@ -277,13 +277,12 @@ static inline void icc_mail_check_tag(iRCCE_MAIL_HEADER* mail) {
break;
case PING_REQ:
// kprintf( "PING_REQ" );
// count++;
iRCCE_mail_send(0, PING_RESP, 0, NULL, mail->source);
break;
case NOISE:
// kprintf( "XXX " );
kprintf( "XXX " );
default:
// kprintf( "icc_mail_check_tag: uknown tag id %d\n", mail->tag );
break;
@ -429,43 +428,45 @@ int icc_mail_noise() {
int num_ranks = RCCE_num_ues();
iRCCE_MAIL_HEADER* recv_mail = NULL;
int flags;
/*
// leave function if not participating
if( (my_ue == CORE_A) || (my_ue == CORE_B) || (my_ue > 25) ) {
if( (my_ue == CORE_A) || (my_ue == CORE_B) ) {
kprintf( "mail_noise: leaving" );
return -1;
}
*/
if( !((my_ue == CORE_A) || (my_ue == CORE_B) ) ) {
kprintf( "mail_noise: leaving" );
return -1;
}
kprintf( "Hello from icc_mail_noise: my_ue = %d\n", my_ue );
kprintf( "num_ues = %d\n", num_ranks );
int count = 0;
for( i=0; i<100000 ;++i ) {
for( ;; ) {
kprintf( "SEND NOISE - " );
/* send a mail to each UE */
for( j=0; j<num_ranks; ++j ) {
if( !((j == CORE_A) || (j == CORE_B)) )
if( (j == CORE_A) /*|| (j == CORE_B) */)
continue;
/* send noise mail */
iRCCE_mail_send(0, NOISE, 1, NULL, j);
iRCCE_mail_send(0, NOISE, 0, NULL, j);
#ifdef _IRQ_NOISE_
icc_send_gic_irq(j);
#endif
}
#ifndef _IRQ_NOISE_
iRCCE_mail_check(iRCCE_MAILBOX_ALL);
#endif
/* read some mails */
flags = irq_nested_disable;
iRCCE_mail_check(iRCCE_MAILBOX_ALL);
while( iRCCE_mail_recv(&recv_mail) == iRCCE_SUCCESS ) {
icc_mail_check_tag(recv_mail);
iRCCE_mail_release(&recv_mail);
}
irq_nested_enable(flags);
#endif
}
return 0;
@ -511,6 +512,7 @@ void icc_mail_check(int irq)
irq_reset_reg = (volatile uint64_t*)(FPGA_BASE + IRQ_RESET + my_ue*8);
*irq_reset_reg = irq_reset;
}
}
else {
iRCCE_mail_check(iRCCE_MAILBOX_ALL);
@ -521,10 +523,11 @@ void icc_mail_check(int irq)
icc_mail_check_tag(header);
iRCCE_mail_release( &header );
}
/* enable interrupts */
irq_nested_enable(flags);
}
#endif

2
kernel/tests.c
View file

@ -416,7 +416,7 @@ int test_init(void)
//create_kernel_task(NULL, producer, NULL);
//create_kernel_task(NULL, consumer, NULL);
create_kernel_task(NULL, mail_ping, NULL);
// create_kernel_task(NULL, mail_noise, NULL);
create_kernel_task(NULL, mail_noise, NULL);
//create_user_task(NULL, "/bin/hello", argv);
//create_user_task(NULL, "/bin/tests", argv);
//create_user_task(NULL, "/bin/jacobi", argv);