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dde_rump: remove use of Dataspace::phys_addr

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This patch removes dead code. The Rump kernel does not need to know any
physical addresses of allocated memory.

Issue #2243
This commit is contained in:
Norman Feske 2022-02-02 15:12:03 +01:00
parent e4f62380d7
commit 997a24e91a
1 changed files with 0 additions and 29 deletions
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29
repos/dde_rump/src/include/util/allocator_fap.h
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@ -67,7 +67,6 @@ namespace Allocator {
addr_t _base; /* virt. base address */
Cache _cache; /* non-/cached RAM */
Ram_dataspace_capability _ds_cap[ELEMENTS]; /* dataspaces to put in VM */
addr_t _ds_phys[ELEMENTS]; /* physical bases of dataspaces */
int _index = 0; /* current index in ds_cap */
Allocator_avl _range; /* manage allocations */
bool _quota_exceeded = false;
@ -88,8 +87,6 @@ namespace Allocator {
_ds_cap[_index] = Rump::env().env().ram().alloc(BLOCK_SIZE, _cache);
/* attach at index * BLOCK_SIZE */
Region_map_client::attach_at(_ds_cap[_index], _index * BLOCK_SIZE, BLOCK_SIZE, 0);
/* lookup phys. address */
_ds_phys[_index] = Genode::Dataspace_client(_ds_cap[_index]).phys_addr();
} catch (Genode::Out_of_ram) {
warning("backend allocator exhausted (out of RAM)");
_quota_exceeded = true;
@ -168,27 +165,6 @@ namespace Allocator {
size_t overhead(size_t size) const override { return 0; }
bool need_size_for_free() const override { return false; }
/**
* Return phys address for given virtual addr.
*/
addr_t phys_addr(addr_t addr)
{
if (addr < _base || addr >= (_base + VM_SIZE))
return ~0UL;
int index = (addr - _base) / BLOCK_SIZE;
/* physical base of dataspace */
addr_t phys = _ds_phys[index];
if (!phys)
return ~0UL;
/* add offset */
phys += (addr - _base - (index * BLOCK_SIZE));
return phys;
}
bool inside(addr_t addr) const { return (addr >= _base) && (addr < (_base + VM_SIZE)); }
};
@ -218,11 +194,6 @@ namespace Allocator {
{
_back_allocator.free(addr, size);
}
addr_t phys_addr(void *addr)
{
return _back_allocator.phys_addr((addr_t)addr);
}
};
} /* namespace Allocator */