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authorameerj <aj662@drexel.edu>2020-10-27 04:07:36 +0100
committerameerj <aj662@drexel.edu>2020-10-27 04:07:36 +0100
commiteb67a45ca82bc01ac843c853fd3c17f2a90e0250 (patch)
tree11e78a1b728ef0a608fae43d966b613eb4e6d58a /src/video_core/memory_manager.cpp
parentMerge pull request #4827 from lioncash/trunc (diff)
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Diffstat (limited to 'src/video_core/memory_manager.cpp')
-rw-r--r--src/video_core/memory_manager.cpp12
1 files changed, 10 insertions, 2 deletions
diff --git a/src/video_core/memory_manager.cpp b/src/video_core/memory_manager.cpp
index 02cf53d15..6e70bd362 100644
--- a/src/video_core/memory_manager.cpp
+++ b/src/video_core/memory_manager.cpp
@@ -11,6 +11,7 @@
#include "video_core/gpu.h"
#include "video_core/memory_manager.h"
#include "video_core/rasterizer_interface.h"
+#include "video_core/renderer_base.h"
namespace Tegra {
@@ -44,6 +45,12 @@ GPUVAddr MemoryManager::MapAllocate(VAddr cpu_addr, std::size_t size, std::size_
return Map(cpu_addr, *FindFreeRange(size, align), size);
}
+GPUVAddr MemoryManager::MapAllocate32(VAddr cpu_addr, std::size_t size) {
+ const std::optional<GPUVAddr> gpu_addr = FindFreeRange(size, 1, true);
+ ASSERT(gpu_addr);
+ return Map(cpu_addr, *gpu_addr, size);
+}
+
void MemoryManager::Unmap(GPUVAddr gpu_addr, std::size_t size) {
if (!size) {
return;
@@ -108,7 +115,8 @@ void MemoryManager::SetPageEntry(GPUVAddr gpu_addr, PageEntry page_entry, std::s
page_table[PageEntryIndex(gpu_addr)] = page_entry;
}
-std::optional<GPUVAddr> MemoryManager::FindFreeRange(std::size_t size, std::size_t align) const {
+std::optional<GPUVAddr> MemoryManager::FindFreeRange(std::size_t size, std::size_t align,
+ bool start_32bit_address) const {
if (!align) {
align = page_size;
} else {
@@ -116,7 +124,7 @@ std::optional<GPUVAddr> MemoryManager::FindFreeRange(std::size_t size, std::size
}
u64 available_size{};
- GPUVAddr gpu_addr{address_space_start};
+ GPUVAddr gpu_addr{start_32bit_address ? address_space_start_low : address_space_start};
while (gpu_addr + available_size < address_space_size) {
if (GetPageEntry(gpu_addr + available_size).IsUnmapped()) {
available_size += page_size;