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[Mammoth] Add an OwnedMemoryRegion for ContiguousPhysical.

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This commit is contained in:
Drew Galbraith 2023-11-19 20:42:38 -08:00
parent deb2e708cd
commit d41a565721
5 changed files with 26 additions and 22 deletions
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18
sys/denali/denali_server.cpp
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@ -18,10 +18,11 @@ glcr::ErrorCode DenaliServer::HandleRead(const ReadRequest& req,
ASSIGN_OR_RETURN(Mutex mutex, Mutex::Create());
RET_ERR(mutex.Lock());
MappedMemoryRegion region =
MappedMemoryRegion::ContiguousPhysical(req.size() * 512);
uint64_t paddr;
OwnedMemoryRegion region =
OwnedMemoryRegion::ContiguousPhysical(req.size() * 512, &paddr);
DmaReadCommand command(req.lba(), req.size(), region.paddr(), mutex);
DmaReadCommand command(req.lba(), req.size(), paddr, mutex);
device->IssueCommand(&command);
// Wait for read operation to complete.
@ -30,7 +31,7 @@ glcr::ErrorCode DenaliServer::HandleRead(const ReadRequest& req,
resp.set_device_id(req.device_id());
resp.set_size(req.size());
resp.set_memory(region.cap());
resp.set_memory(region.DuplicateCap());
return glcr::OK;
}
@ -40,8 +41,9 @@ glcr::ErrorCode DenaliServer::HandleReadMany(const ReadManyRequest& req,
ASSIGN_OR_RETURN(Mutex mutex, Mutex::Create());
RET_ERR(mutex.Lock());
MappedMemoryRegion region =
MappedMemoryRegion::ContiguousPhysical(req.lba().size() * 512);
uint64_t region_paddr;
OwnedMemoryRegion region = OwnedMemoryRegion::ContiguousPhysical(
req.lba().size() * 512, &region_paddr);
auto& vec = req.lba();
uint64_t curr_run_start = 0;
@ -51,7 +53,7 @@ glcr::ErrorCode DenaliServer::HandleReadMany(const ReadManyRequest& req,
}
uint64_t lba = vec.at(curr_run_start);
uint64_t size = (i - curr_run_start) + 1;
uint64_t paddr = region.paddr() + curr_run_start * 512;
uint64_t paddr = region_paddr + curr_run_start * 512;
DmaReadCommand command(lba, size, paddr, mutex);
device->IssueCommand(&command);
@ -63,6 +65,6 @@ glcr::ErrorCode DenaliServer::HandleReadMany(const ReadManyRequest& req,
resp.set_device_id(req.device_id());
resp.set_size(req.lba().size());
resp.set_memory(region.cap());
resp.set_memory(region.DuplicateCap());
return glcr::OK;
}