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Cleanup

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This commit is contained in:
Joerg Hoppe
2019-12-19 10:30:45 +01:00
parent 061dbac5b6
commit b2a79c5221
12 changed files with 105 additions and 101 deletions
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6
10.01_base/2_src/arm/unibusadapter.cpp
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@@ -360,7 +360,7 @@ priority_request_c *unibusadapter_c::request_activate_lowest_slot(unsigned level
Is implemented on ARM as just 2 opcodes: rbit (bit reverse), clz (count number of leading zeros)
VERY FAST (without sorting list)
*/
// Must run under pthread_mutex_lock(&requests_mutex);
// Must run under pthread_mutex_lock(&);
priority_request_level_c *prl = &request_levels[level_index];
priority_request_c *rq;
@@ -591,11 +591,12 @@ void unibusadapter_c::DMA(dma_request_c& dma_request, bool blocking, uint8_t uni
// NO wait for PRU signal, instead busy waiting. CPU thread blocked.
// Reason: SPEED. CPU does high frequency single word accesses.
bool completed = false;
// ARM_DEBUG_PIN1(1); // CPU20 performace
do {
// CPU thread is now spinning
// wait until CPU access scheduled and processed on PRU
// in parallel, other device threads call DMA()
pthread_mutex_lock(&requests_mutex);//&dma_request.complete_mutex);
pthread_mutex_lock(&requests_mutex);
dma_request_c *activereq = dynamic_cast<dma_request_c *>(prl->active);
//if (activereq == &dma_request)
// printf("a\n") ;
@@ -610,6 +611,7 @@ void unibusadapter_c::DMA(dma_request_c& dma_request, bool blocking, uint8_t uni
}
pthread_mutex_unlock(&requests_mutex);//&dma_request.complete_mutex);
} while (!completed);
//ARM_DEBUG_PIN1(0); // CPU20 performace
} else if (blocking) {
pthread_mutex_lock(&dma_request.complete_mutex) ;