diff options
| -rw-r--r-- | src/core/hle/kernel/k_page_group.h | 11 | ||||
| -rw-r--r-- | src/core/hle/kernel/k_page_table.cpp | 68 | ||||
| -rw-r--r-- | src/core/hle/kernel/k_page_table.h | 4 |
3 files changed, 49 insertions, 34 deletions
diff --git a/src/core/hle/kernel/k_page_group.h b/src/core/hle/kernel/k_page_group.h index b32909f05..de9d63a8d 100644 --- a/src/core/hle/kernel/k_page_group.h +++ b/src/core/hle/kernel/k_page_group.h @@ -183,12 +183,17 @@ private: class KScopedPageGroup { public: - explicit KScopedPageGroup(const KPageGroup* gp) : m_pg(gp) { + explicit KScopedPageGroup(const KPageGroup* gp, bool not_first = true) : m_pg(gp) { if (m_pg) { - m_pg->Open(); + if (not_first) { + m_pg->Open(); + } else { + m_pg->OpenFirst(); + } } } - explicit KScopedPageGroup(const KPageGroup& gp) : KScopedPageGroup(std::addressof(gp)) {} + explicit KScopedPageGroup(const KPageGroup& gp, bool not_first = true) + : KScopedPageGroup(std::addressof(gp), not_first) {} ~KScopedPageGroup() { if (m_pg) { m_pg->Close(); diff --git a/src/core/hle/kernel/k_page_table.cpp b/src/core/hle/kernel/k_page_table.cpp index 387f2c962..217ccbae3 100644 --- a/src/core/hle/kernel/k_page_table.cpp +++ b/src/core/hle/kernel/k_page_table.cpp @@ -1724,29 +1724,43 @@ Result KPageTable::MapPhysicalMemory(KProcessAddress address, size_t size) { PageSize; // While we have pages to map, map them. - while (map_pages > 0) { - // Check if we're at the end of the physical block. - if (pg_pages == 0) { - // Ensure there are more pages to map. - ASSERT(pg_it != pg.end()); - - // Advance our physical block. - ++pg_it; - pg_phys_addr = pg_it->GetAddress(); - pg_pages = pg_it->GetNumPages(); + { + // Create a page group for the current mapping range. + KPageGroup cur_pg(m_kernel, m_block_info_manager); + { + ON_RESULT_FAILURE_2 { + cur_pg.OpenFirst(); + cur_pg.Close(); + }; + + size_t remain_pages = map_pages; + while (remain_pages > 0) { + // Check if we're at the end of the physical block. + if (pg_pages == 0) { + // Ensure there are more pages to map. + ASSERT(pg_it != pg.end()); + + // Advance our physical block. + ++pg_it; + pg_phys_addr = pg_it->GetAddress(); + pg_pages = pg_it->GetNumPages(); + } + + // Add whatever we can to the current block. + const size_t cur_pages = std::min(pg_pages, remain_pages); + R_TRY(cur_pg.AddBlock(pg_phys_addr + + ((pg_pages - cur_pages) * PageSize), + cur_pages)); + + // Advance. + remain_pages -= cur_pages; + pg_pages -= cur_pages; + } } - // Map whatever we can. - const size_t cur_pages = std::min(pg_pages, map_pages); - R_TRY(Operate(cur_address, cur_pages, KMemoryPermission::UserReadWrite, - OperationType::MapFirst, pg_phys_addr)); - - // Advance. - cur_address += cur_pages * PageSize; - map_pages -= cur_pages; - - pg_phys_addr += cur_pages * PageSize; - pg_pages -= cur_pages; + // Map the pages. + R_TRY(this->Operate(cur_address, map_pages, cur_pg, + OperationType::MapFirstGroup)); } } @@ -3037,9 +3051,10 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, const KPageGr ASSERT(num_pages == page_group.GetNumPages()); switch (operation) { - case OperationType::MapGroup: { + case OperationType::MapGroup: + case OperationType::MapFirstGroup: { // We want to maintain a new reference to every page in the group. - KScopedPageGroup spg(page_group); + KScopedPageGroup spg(page_group, operation != OperationType::MapFirstGroup); for (const auto& node : page_group) { const size_t size{node.GetNumPages() * PageSize}; @@ -3081,7 +3096,6 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis m_memory->UnmapRegion(*m_page_table_impl, addr, num_pages * PageSize); break; } - case OperationType::MapFirst: case OperationType::Map: { ASSERT(map_addr); ASSERT(Common::IsAligned(GetInteger(map_addr), PageSize)); @@ -3089,11 +3103,7 @@ Result KPageTable::Operate(KProcessAddress addr, size_t num_pages, KMemoryPermis // Open references to pages, if we should. if (IsHeapPhysicalAddress(m_kernel.MemoryLayout(), map_addr)) { - if (operation == OperationType::MapFirst) { - m_kernel.MemoryManager().OpenFirst(map_addr, num_pages); - } else { - m_kernel.MemoryManager().Open(map_addr, num_pages); - } + m_kernel.MemoryManager().Open(map_addr, num_pages); } break; } diff --git a/src/core/hle/kernel/k_page_table.h b/src/core/hle/kernel/k_page_table.h index cbcbb6f62..3d64b6fb0 100644 --- a/src/core/hle/kernel/k_page_table.h +++ b/src/core/hle/kernel/k_page_table.h @@ -217,8 +217,8 @@ protected: private: enum class OperationType : u32 { Map = 0, - MapFirst = 1, - MapGroup = 2, + MapGroup = 1, + MapFirstGroup = 2, Unmap = 3, ChangePermissions = 4, ChangePermissionsAndRefresh = 5, |