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authorGravatar Subv2017-07-21 22:22:59 -0500
committerGravatar Subv2017-09-15 14:26:13 -0500
commit214150f00c77474927cbdfb1598dbdb2cb4fcf32 (patch)
tree4e86b987f4503953ab3b6389e176bd63f7cdd672 /src/core/hle/kernel
parentKernel/Memory: Switch the current page table when a new process is scheduled. (diff)
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Kernel/Memory: Changed GetPhysicalPointer so that it doesn't go through the current process' page table to obtain a pointer.
Diffstat (limited to 'src/core/hle/kernel')
-rw-r--r--src/core/hle/kernel/memory.cpp30
-rw-r--r--src/core/hle/kernel/memory.h2
2 files changed, 7 insertions, 25 deletions
diff --git a/src/core/hle/kernel/memory.cpp b/src/core/hle/kernel/memory.cpp
index 496d07cb5..7f27e9655 100644
--- a/src/core/hle/kernel/memory.cpp
+++ b/src/core/hle/kernel/memory.cpp
@@ -8,7 +8,6 @@
8#include <memory> 8#include <memory>
9#include <utility> 9#include <utility>
10#include <vector> 10#include <vector>
11#include "audio_core/audio_core.h"
12#include "common/assert.h" 11#include "common/assert.h"
13#include "common/common_types.h" 12#include "common/common_types.h"
14#include "common/logging/log.h" 13#include "common/logging/log.h"
@@ -24,7 +23,7 @@
24 23
25namespace Kernel { 24namespace Kernel {
26 25
27static MemoryRegionInfo memory_regions[3]; 26MemoryRegionInfo memory_regions[3];
28 27
29/// Size of the APPLICATION, SYSTEM and BASE memory regions (respectively) for each system 28/// Size of the APPLICATION, SYSTEM and BASE memory regions (respectively) for each system
30/// memory configuration type. 29/// memory configuration type.
@@ -96,9 +95,6 @@ MemoryRegionInfo* GetMemoryRegion(MemoryRegion region) {
96 } 95 }
97} 96}
98 97
99std::array<u8, Memory::VRAM_SIZE> vram;
100std::array<u8, Memory::N3DS_EXTRA_RAM_SIZE> n3ds_extra_ram;
101
102void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping) { 98void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping) {
103 using namespace Memory; 99 using namespace Memory;
104 100
@@ -143,30 +139,14 @@ void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mappin
143 return; 139 return;
144 } 140 }
145 141
146 // TODO(yuriks): Use GetPhysicalPointer when that becomes independent of the virtual 142 u8* target_pointer = Memory::GetPhysicalPointer(area->paddr_base + offset_into_region);
147 // mappings.
148 u8* target_pointer = nullptr;
149 switch (area->paddr_base) {
150 case VRAM_PADDR:
151 target_pointer = vram.data();
152 break;
153 case DSP_RAM_PADDR:
154 target_pointer = AudioCore::GetDspMemory().data();
155 break;
156 case N3DS_EXTRA_RAM_PADDR:
157 target_pointer = n3ds_extra_ram.data();
158 break;
159 default:
160 UNREACHABLE();
161 }
162 143
163 // TODO(yuriks): This flag seems to have some other effect, but it's unknown what 144 // TODO(yuriks): This flag seems to have some other effect, but it's unknown what
164 MemoryState memory_state = mapping.unk_flag ? MemoryState::Static : MemoryState::IO; 145 MemoryState memory_state = mapping.unk_flag ? MemoryState::Static : MemoryState::IO;
165 146
166 auto vma = address_space 147 auto vma =
167 .MapBackingMemory(mapping.address, target_pointer + offset_into_region, 148 address_space.MapBackingMemory(mapping.address, target_pointer, mapping.size, memory_state)
168 mapping.size, memory_state) 149 .Unwrap();
169 .Unwrap();
170 address_space.Reprotect(vma, 150 address_space.Reprotect(vma,
171 mapping.read_only ? VMAPermission::Read : VMAPermission::ReadWrite); 151 mapping.read_only ? VMAPermission::Read : VMAPermission::ReadWrite);
172} 152}
diff --git a/src/core/hle/kernel/memory.h b/src/core/hle/kernel/memory.h
index 08c1a9989..da6bb3563 100644
--- a/src/core/hle/kernel/memory.h
+++ b/src/core/hle/kernel/memory.h
@@ -26,4 +26,6 @@ MemoryRegionInfo* GetMemoryRegion(MemoryRegion region);
26 26
27void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping); 27void HandleSpecialMapping(VMManager& address_space, const AddressMapping& mapping);
28void MapSharedPages(VMManager& address_space); 28void MapSharedPages(VMManager& address_space);
29
30extern MemoryRegionInfo memory_regions[3];
29} // namespace Kernel 31} // namespace Kernel