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DMA/INTR arbitration rework, emulated CPU20 with DMA&INTR, runs XXDP

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This commit is contained in:
Joerg Hoppe
2019-10-04 12:45:26 +02:00
parent 73b9d2f9fb
commit f314317e2a
57 changed files with 2498 additions and 1795 deletions
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7
10.01_base/2_src/arm/priorityrequest.cpp
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@@ -35,7 +35,7 @@ priority_request_c::priority_request_c(unibusdevice_c *device) {
this->device = device;
this->complete = false;
this->executing_on_PRU = false;
this->slot = 0xff; // uninitialized, asserts() if used
this->priority_slot = 0xff; // uninitialized, asserts() if used
complete_mutex = PTHREAD_MUTEX_INITIALIZER;
complete_cond = PTHREAD_COND_INITIALIZER; // PRU signal notifies request on completeness
}
@@ -47,13 +47,13 @@ priority_request_c::~priority_request_c() {
void priority_request_c::set_priority_slot(uint8_t priority_slot) {
assert(priority_slot > 0); // 0 reserved
assert(priority_slot < PRIORITY_SLOT_COUNT);
if (this->slot == priority_slot)
if (this->priority_slot == priority_slot)
return ; // called on every on_param_change()
unibusdevice_c *ubdevice = unibusdevice_c::find_by_request_slot(priority_slot);
if (ubdevice && ubdevice != this->device) {
WARNING("Slot %u already used by device %s", (unsigned) priority_slot, ubdevice->name.value.c_str());
}
this->slot = priority_slot;
this->priority_slot = priority_slot;
// todo: check for collision with all other devices, all other requests
}
@@ -62,6 +62,7 @@ dma_request_c::dma_request_c(unibusdevice_c *device) :
priority_request_c(device) {
this->level_index = PRIORITY_LEVEL_INDEX_NPR;
this->success = false;
this->is_cpu_access = false ;// over written for emulated CPU
// register request for device
if (device) {
device->dma_requests.push_back(this);