Merge pull request #4122 from FearlessTobi/port-905
Port #905 from yuzu: "kernel/vm_manager: Minor changes"
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commit
cf4f8463f1
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@ -2,6 +2,7 @@
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// Licensed under GPLv2 or any later version
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// Refer to the license.txt file included.
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#include <algorithm>
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#include <iterator>
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#include "common/assert.h"
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#include "core/hle/kernel/errors.h"
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@ -209,9 +210,9 @@ VMManager::VMAIter VMManager::Unmap(VMAIter vma_handle) {
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ResultCode VMManager::UnmapRange(VAddr target, u32 size) {
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CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size));
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VAddr target_end = target + size;
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const VAddr target_end = target + size;
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VMAIter end = vma_map.end();
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const VMAIter end = vma_map.end();
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// The comparison against the end of the range must be done using addresses since VMAs can be
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// merged during this process, causing invalidation of the iterators.
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while (vma != end && vma->second.base < target_end) {
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@ -234,9 +235,9 @@ VMManager::VMAHandle VMManager::Reprotect(VMAHandle vma_handle, VMAPermission ne
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ResultCode VMManager::ReprotectRange(VAddr target, u32 size, VMAPermission new_perms) {
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CASCADE_RESULT(VMAIter vma, CarveVMARange(target, size));
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VAddr target_end = target + size;
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const VAddr target_end = target + size;
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VMAIter end = vma_map.end();
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const VMAIter end = vma_map.end();
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// The comparison against the end of the range must be done using addresses since VMAs can be
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// merged during this process, causing invalidation of the iterators.
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while (vma != end && vma->second.base < target_end) {
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@ -285,14 +286,14 @@ ResultVal<VMManager::VMAIter> VMManager::CarveVMA(VAddr base, u32 size) {
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return ERR_INVALID_ADDRESS;
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}
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VirtualMemoryArea& vma = vma_handle->second;
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const VirtualMemoryArea& vma = vma_handle->second;
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if (vma.type != VMAType::Free) {
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// Region is already allocated
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return ERR_INVALID_ADDRESS_STATE;
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}
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u32 start_in_vma = base - vma.base;
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u32 end_in_vma = start_in_vma + size;
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const VAddr start_in_vma = base - vma.base;
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const VAddr end_in_vma = start_in_vma + size;
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if (end_in_vma > vma.size) {
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// Requested allocation doesn't fit inside VMA
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@ -315,17 +316,16 @@ ResultVal<VMManager::VMAIter> VMManager::CarveVMARange(VAddr target, u32 size) {
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ASSERT_MSG((size & Memory::PAGE_MASK) == 0, "non-page aligned size: {:#10X}", size);
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ASSERT_MSG((target & Memory::PAGE_MASK) == 0, "non-page aligned base: {:#010X}", target);
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VAddr target_end = target + size;
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const VAddr target_end = target + size;
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ASSERT(target_end >= target);
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ASSERT(target_end <= MAX_ADDRESS);
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ASSERT(size > 0);
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VMAIter begin_vma = StripIterConstness(FindVMA(target));
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VMAIter i_end = vma_map.lower_bound(target_end);
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for (auto i = begin_vma; i != i_end; ++i) {
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if (i->second.type == VMAType::Free) {
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return ERR_INVALID_ADDRESS_STATE;
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}
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const VMAIter i_end = vma_map.lower_bound(target_end);
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if (std::any_of(begin_vma, i_end,
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[](const auto& entry) { return entry.second.type == VMAType::Free; })) {
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return ERR_INVALID_ADDRESS_STATE;
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}
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if (target != begin_vma->second.base) {
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@ -373,7 +373,7 @@ VMManager::VMAIter VMManager::SplitVMA(VMAIter vma_handle, u32 offset_in_vma) {
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}
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VMManager::VMAIter VMManager::MergeAdjacent(VMAIter iter) {
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VMAIter next_vma = std::next(iter);
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const VMAIter next_vma = std::next(iter);
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if (next_vma != vma_map.end() && iter->second.CanBeMergedWith(next_vma->second)) {
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iter->second.size += next_vma->second.size;
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vma_map.erase(next_vma);
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