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Merge pull request #2799 from yuriks/virtual-cached-range-flush 

Add address conversion functions returning optional, Add function to flush virtual region from rasterizer cache
This commit is contained in:
Weiyi Wang 2017-07-22 10:15:52 +03:00 committed by GitHub
parent 5621a65037 d553135748
commit 045d0b5bbd
6 changed files with 113 additions and 68 deletions
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2
src/core/hle/kernel/shared_memory.cpp
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@ -149,7 +149,7 @@ ResultCode SharedMemory::Map(Process* target_process, VAddr address, MemoryPermi
if (base_address == 0 && target_address == 0) {
// Calculate the address at which to map the memory block.
target_address = Memory::PhysicalToVirtualAddress(linear_heap_phys_address);
target_address = Memory::PhysicalToVirtualAddress(linear_heap_phys_address).value();
}
// Map the memory block into the target process

2
src/core/hle/service/apt/apt.cpp
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@ -85,7 +85,7 @@ void GetSharedFont(Service::Interface* self) {
// The shared font has to be relocated to the new address before being passed to the
// application.
VAddr target_address =
Memory::PhysicalToVirtualAddress(shared_font_mem->linear_heap_phys_address);
Memory::PhysicalToVirtualAddress(shared_font_mem->linear_heap_phys_address).value();
if (!shared_font_relocated) {
BCFNT::RelocateSharedFont(shared_font_mem, target_address);
shared_font_relocated = true;

11
src/core/hle/service/gsp_gpu.cpp
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@ -475,12 +475,11 @@ static void ExecuteCommand(const Command& command, u32 thread_id) {
// TODO: Consider attempting rasterizer-accelerated surface blit if that usage is ever
// possible/likely
Memory::RasterizerFlushRegion(
Memory::VirtualToPhysicalAddress(command.dma_request.source_address),
command.dma_request.size);
Memory::RasterizerFlushAndInvalidateRegion(
Memory::VirtualToPhysicalAddress(command.dma_request.dest_address),
command.dma_request.size);
Memory::RasterizerFlushVirtualRegion(command.dma_request.source_address,
command.dma_request.size, Memory::FlushMode::Flush);
Memory::RasterizerFlushVirtualRegion(command.dma_request.dest_address,
command.dma_request.size,
Memory::FlushMode::FlushAndInvalidate);
// TODO(Subv): These memory accesses should not go through the application's memory mapping.
// They should go through the GSP module's memory mapping.

4
src/core/hle/service/y2r_u.cpp
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@ -587,8 +587,8 @@ static void StartConversion(Interface* self) {
// dst_image_size would seem to be perfect for this, but it doesn't include the gap :(
u32 total_output_size =
conversion.input_lines * (conversion.dst.transfer_unit + conversion.dst.gap);
Memory::RasterizerFlushAndInvalidateRegion(
Memory::VirtualToPhysicalAddress(conversion.dst.address), total_output_size);
Memory::RasterizerFlushVirtualRegion(conversion.dst.address, total_output_size,
Memory::FlushMode::FlushAndInvalidate);
HW::Y2R::PerformConversion(conversion);

122
src/core/memory.cpp
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@ -83,19 +83,13 @@ static void MapPages(u32 base, u32 size, u8* memory, PageType type) {
LOG_DEBUG(HW_Memory, "Mapping %p onto %08X-%08X", memory, base * PAGE_SIZE,
(base + size) * PAGE_SIZE);
u32 end = base + size;
RasterizerFlushVirtualRegion(base << PAGE_BITS, size * PAGE_SIZE,
FlushMode::FlushAndInvalidate);
u32 end = base + size;
while (base != end) {
ASSERT_MSG(base < PAGE_TABLE_NUM_ENTRIES, "out of range mapping at %08X", base);
// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
// null here
if (current_page_table->attributes[base] == PageType::RasterizerCachedMemory ||
current_page_table->attributes[base] == PageType::RasterizerCachedSpecial) {
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(base << PAGE_BITS),
PAGE_SIZE);
}
current_page_table->attributes[base] = type;
current_page_table->pointers[base] = memory;
current_page_table->cached_res_count[base] = 0;
@ -196,7 +190,7 @@ T Read(const VAddr vaddr) {
ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
break;
case PageType::RasterizerCachedMemory: {
RasterizerFlushRegion(VirtualToPhysicalAddress(vaddr), sizeof(T));
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
T value;
std::memcpy(&value, GetPointerFromVMA(vaddr), sizeof(T));
@ -205,8 +199,7 @@ T Read(const VAddr vaddr) {
case PageType::Special:
return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
case PageType::RasterizerCachedSpecial: {
RasterizerFlushRegion(VirtualToPhysicalAddress(vaddr), sizeof(T));
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::Flush);
return ReadMMIO<T>(GetMMIOHandler(vaddr), vaddr);
}
default:
@ -236,8 +229,7 @@ void Write(const VAddr vaddr, const T data) {
ASSERT_MSG(false, "Mapped memory page without a pointer @ %08X", vaddr);
break;
case PageType::RasterizerCachedMemory: {
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(vaddr), sizeof(T));
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
std::memcpy(GetPointerFromVMA(vaddr), &data, sizeof(T));
break;
}
@ -245,8 +237,7 @@ void Write(const VAddr vaddr, const T data) {
WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
break;
case PageType::RasterizerCachedSpecial: {
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(vaddr), sizeof(T));
RasterizerFlushVirtualRegion(vaddr, sizeof(T), FlushMode::FlushAndInvalidate);
WriteMMIO<T>(GetMMIOHandler(vaddr), vaddr, data);
break;
}
@ -275,7 +266,8 @@ bool IsValidVirtualAddress(const VAddr vaddr) {
}
bool IsValidPhysicalAddress(const PAddr paddr) {
return IsValidVirtualAddress(PhysicalToVirtualAddress(paddr));
boost::optional<VAddr> vaddr = PhysicalToVirtualAddress(paddr);
return vaddr && IsValidVirtualAddress(*vaddr);
}
u8* GetPointer(const VAddr vaddr) {
@ -308,7 +300,8 @@ std::string ReadCString(VAddr vaddr, std::size_t max_length) {
u8* GetPhysicalPointer(PAddr address) {
// TODO(Subv): This call should not go through the application's memory mapping.
return GetPointer(PhysicalToVirtualAddress(address));
boost::optional<VAddr> vaddr = PhysicalToVirtualAddress(address);
return vaddr ? GetPointer(*vaddr) : nullptr;
}
void RasterizerMarkRegionCached(PAddr start, u32 size, int count_delta) {
@ -319,8 +312,12 @@ void RasterizerMarkRegionCached(PAddr start, u32 size, int count_delta) {
u32 num_pages = ((start + size - 1) >> PAGE_BITS) - (start >> PAGE_BITS) + 1;
PAddr paddr = start;
for (unsigned i = 0; i < num_pages; ++i) {
VAddr vaddr = PhysicalToVirtualAddress(paddr);
for (unsigned i = 0; i < num_pages; ++i, paddr += PAGE_SIZE) {
boost::optional<VAddr> maybe_vaddr = PhysicalToVirtualAddress(paddr);
if (!maybe_vaddr)
continue;
VAddr vaddr = *maybe_vaddr;
u8& res_count = current_page_table->cached_res_count[vaddr >> PAGE_BITS];
ASSERT_MSG(count_delta <= UINT8_MAX - res_count,
"Rasterizer resource cache counter overflow!");
@ -368,7 +365,6 @@ void RasterizerMarkRegionCached(PAddr start, u32 size, int count_delta) {
UNREACHABLE();
}
}
paddr += PAGE_SIZE;
}
}
@ -379,11 +375,48 @@ void RasterizerFlushRegion(PAddr start, u32 size) {
}
void RasterizerFlushAndInvalidateRegion(PAddr start, u32 size) {
// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
// null here
if (VideoCore::g_renderer != nullptr) {
VideoCore::g_renderer->Rasterizer()->FlushAndInvalidateRegion(start, size);
}
}
void RasterizerFlushVirtualRegion(VAddr start, u32 size, FlushMode mode) {
// Since pages are unmapped on shutdown after video core is shutdown, the renderer may be
// null here
if (VideoCore::g_renderer != nullptr) {
VAddr end = start + size;
auto CheckRegion = [&](VAddr region_start, VAddr region_end) {
if (start >= region_end || end <= region_start) {
// No overlap with region
return;
}
VAddr overlap_start = std::max(start, region_start);
VAddr overlap_end = std::min(end, region_end);
PAddr physical_start = TryVirtualToPhysicalAddress(overlap_start).value();
u32 overlap_size = overlap_end - overlap_start;
auto* rasterizer = VideoCore::g_renderer->Rasterizer();
switch (mode) {
case FlushMode::Flush:
rasterizer->FlushRegion(physical_start, overlap_size);
break;
case FlushMode::FlushAndInvalidate:
rasterizer->FlushAndInvalidateRegion(physical_start, overlap_size);
break;
}
};
CheckRegion(LINEAR_HEAP_VADDR, LINEAR_HEAP_VADDR_END);
CheckRegion(NEW_LINEAR_HEAP_VADDR, NEW_LINEAR_HEAP_VADDR_END);
CheckRegion(VRAM_VADDR, VRAM_VADDR_END);
}
}
u8 Read8(const VAddr addr) {
return Read<u8>(addr);
}
@ -430,16 +463,13 @@ void ReadBlock(const VAddr src_addr, void* dest_buffer, const size_t size) {
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushRegion(VirtualToPhysicalAddress(current_vaddr), copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::Flush);
std::memcpy(dest_buffer, GetPointerFromVMA(current_vaddr), copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
RasterizerFlushRegion(VirtualToPhysicalAddress(current_vaddr), copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::Flush);
GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, dest_buffer, copy_amount);
break;
}
@ -500,18 +530,13 @@ void WriteBlock(const VAddr dest_addr, const void* src_buffer, const size_t size
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(current_vaddr),
copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::FlushAndInvalidate);
std::memcpy(GetPointerFromVMA(current_vaddr), src_buffer, copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(current_vaddr),
copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::FlushAndInvalidate);
GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, src_buffer, copy_amount);
break;
}
@ -557,18 +582,13 @@ void ZeroBlock(const VAddr dest_addr, const size_t size) {
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(current_vaddr),
copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::FlushAndInvalidate);
std::memset(GetPointerFromVMA(current_vaddr), 0, copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
RasterizerFlushAndInvalidateRegion(VirtualToPhysicalAddress(current_vaddr),
copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::FlushAndInvalidate);
GetMMIOHandler(current_vaddr)->WriteBlock(current_vaddr, zeros.data(), copy_amount);
break;
}
@ -613,15 +633,13 @@ void CopyBlock(VAddr dest_addr, VAddr src_addr, const size_t size) {
break;
}
case PageType::RasterizerCachedMemory: {
RasterizerFlushRegion(VirtualToPhysicalAddress(current_vaddr), copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::Flush);
WriteBlock(dest_addr, GetPointerFromVMA(current_vaddr), copy_amount);
break;
}
case PageType::RasterizerCachedSpecial: {
DEBUG_ASSERT(GetMMIOHandler(current_vaddr));
RasterizerFlushRegion(VirtualToPhysicalAddress(current_vaddr), copy_amount);
RasterizerFlushVirtualRegion(current_vaddr, copy_amount, FlushMode::Flush);
std::vector<u8> buffer(copy_amount);
GetMMIOHandler(current_vaddr)->ReadBlock(current_vaddr, buffer.data(), buffer.size());
@ -680,7 +698,7 @@ void WriteMMIO<u64>(MMIORegionPointer mmio_handler, VAddr addr, const u64 data)
mmio_handler->Write64(addr, data);
}
PAddr VirtualToPhysicalAddress(const VAddr addr) {
boost::optional<PAddr> TryVirtualToPhysicalAddress(const VAddr addr) {
if (addr == 0) {
return 0;
} else if (addr >= VRAM_VADDR && addr < VRAM_VADDR_END) {
@ -697,12 +715,20 @@ PAddr VirtualToPhysicalAddress(const VAddr addr) {
return addr - N3DS_EXTRA_RAM_VADDR + N3DS_EXTRA_RAM_PADDR;
}
return boost::none;
}
PAddr VirtualToPhysicalAddress(const VAddr addr) {
auto paddr = TryVirtualToPhysicalAddress(addr);
if (!paddr) {
LOG_ERROR(HW_Memory, "Unknown virtual address @ 0x%08X", addr);
// To help with debugging, set bit on address so that it's obviously invalid.
return addr | 0x80000000;
}
return *paddr;
}
VAddr PhysicalToVirtualAddress(const PAddr addr) {
boost::optional<VAddr> PhysicalToVirtualAddress(const PAddr addr) {
if (addr == 0) {
return 0;
} else if (addr >= VRAM_PADDR && addr < VRAM_PADDR_END) {
@ -717,9 +743,7 @@ VAddr PhysicalToVirtualAddress(const PAddr addr) {
return addr - N3DS_EXTRA_RAM_PADDR + N3DS_EXTRA_RAM_VADDR;
}
LOG_ERROR(HW_Memory, "Unknown physical address @ 0x%08X", addr);
// To help with debugging, set bit on address so that it's obviously invalid.
return addr | 0x80000000;
return boost::none;
}
} // namespace

34
src/core/memory.h
View File

@ -7,6 +7,7 @@
#include <array>
#include <cstddef>
#include <string>
#include <boost/optional.hpp>
#include "common/common_types.h"
namespace Memory {
@ -148,15 +149,23 @@ u8* GetPointer(VAddr virtual_address);
std::string ReadCString(VAddr virtual_address, std::size_t max_length);
/**
* Converts a virtual address inside a region with 1:1 mapping to physical memory to a physical
* address. This should be used by services to translate addresses for use by the hardware.
*/
* Converts a virtual address inside a region with 1:1 mapping to physical memory to a physical
* address. This should be used by services to translate addresses for use by the hardware.
*/
boost::optional<PAddr> TryVirtualToPhysicalAddress(VAddr addr);
/**
* Converts a virtual address inside a region with 1:1 mapping to physical memory to a physical
* address. This should be used by services to translate addresses for use by the hardware.
*
* @deprecated Use TryVirtualToPhysicalAddress(), which reports failure.
*/
PAddr VirtualToPhysicalAddress(VAddr addr);
/**
* Undoes a mapping performed by VirtualToPhysicalAddress().
*/
VAddr PhysicalToVirtualAddress(PAddr addr);
* Undoes a mapping performed by VirtualToPhysicalAddress().
*/
boost::optional<VAddr> PhysicalToVirtualAddress(PAddr addr);
/**
* Gets a pointer to the memory region beginning at the specified physical address.
@ -181,6 +190,19 @@ void RasterizerFlushRegion(PAddr start, u32 size);
*/
void RasterizerFlushAndInvalidateRegion(PAddr start, u32 size);
enum class FlushMode {
/// Write back modified surfaces to RAM
Flush,
/// Write back modified surfaces to RAM, and also remove them from the cache
FlushAndInvalidate,
};
/**
* Flushes and invalidates any externally cached rasterizer resources touching the given virtual
* address region.
*/
void RasterizerFlushVirtualRegion(VAddr start, u32 size, FlushMode mode);
/**
* Dynarmic has an optimization to memory accesses when the pointer to the page exists that
* can be used by setting up the current page table as a callback. This function is used to