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add virtual mem allocator addr spacereservation

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This commit is contained in:
Hanran Wu 2024-07-10 22:39:00 -04:00
parent 314ad3ff8a
commit b8757c539d
1 changed files with 25 additions and 0 deletions
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25
runtime/simx/vortex.cpp
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@ -407,6 +407,21 @@ public:
return 0;
}
// reserve IO space, startup space, and local mem area
int virtual_mem_reserve(uint64_t dev_addr, uint64_t size, int flags)
{
// uint64_t asize = aligned_size(size, MEM_PAGE_SIZE);
CHECK_ERR(virtual_mem_->reserve(dev_addr, size), {
return err;
});
DBGPRINT("[RT:mem_reserve] addr: 0x%lx, size:0x%lx, size: 0x%lx\n", dev_addr, size, size);
// CHECK_ERR(this->mem_access(dev_addr, asize, flags), {
// global_mem_.release(dev_addr);
// return err;
// });
return 0;
}
int16_t init_VM()
{
uint64_t pt_addr = 0;
@ -424,6 +439,16 @@ public:
// HW: virtual mem allocator has the same address range as global_mem. next step is to adjust it
virtual_mem_ = new MemoryAllocator(ALLOC_BASE_ADDR >> MEM_PAGE_LOG2_SIZE, (GLOBAL_MEM_SIZE - ALLOC_BASE_ADDR) >> MEM_PAGE_LOG2_SIZE, MEM_PAGE_SIZE, CACHE_BLOCK_SIZE);
CHECK_ERR(virtual_mem_reserve(PAGE_TABLE_BASE_ADDR >> MEM_PAGE_LOG2_SIZE, (GLOBAL_MEM_SIZE - PAGE_TABLE_BASE_ADDR) >> MEM_PAGE_LOG2_SIZE, VX_MEM_READ_WRITE), {
return err;
});
CHECK_ERR(virtual_mem_reserve(0, USER_BASE_ADDR >> MEM_PAGE_LOG2_SIZE, VX_MEM_READ_WRITE), {
return err;
});
CHECK_ERR(virtual_mem_reserve(STARTUP_ADDR >> MEM_PAGE_LOG2_SIZE, (STARTUP_ADDR + 0x40000) >> MEM_PAGE_LOG2_SIZE, VX_MEM_READ_WRITE), {
return err;
});
if (virtual_mem_ == nullptr) {
// virtual_mem_ does not intefere with physical mem, so no need to free space