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Merge pull request #169 from bunnei/gpu-mem 

nvdrv: Implement AllocateSpace and MapBufferEx
This commit is contained in:
bunnei 2018-02-07 22:10:42 -08:00 committed by GitHub
parent 869d65e923 a39a65cbe0
commit db11c9a0b9
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GPG Key ID: 4AEE18F83AFDEB23
8 changed files with 225 additions and 30 deletions
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2
src/core/CMakeLists.txt
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@ -137,6 +137,8 @@ add_library(core STATIC
hle/service/nvdrv/devices/nvmap.h
hle/service/nvdrv/interface.cpp
hle/service/nvdrv/interface.h
hle/service/nvdrv/memory_manager.cpp
hle/service/nvdrv/memory_manager.h
hle/service/nvdrv/nvdrv.cpp
hle/service/nvdrv/nvdrv.h
hle/service/nvdrv/nvmemp.cpp

38
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.cpp
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@ -5,6 +5,7 @@
#include "common/assert.h"
#include "common/logging/log.h"
#include "core/hle/service/nvdrv/devices/nvhost_as_gpu.h"
#include "core/hle/service/nvdrv/devices/nvmap.h"
namespace Service {
namespace Nvidia {
@ -40,9 +41,16 @@ u32 nvhost_as_gpu::InitalizeEx(const std::vector<u8>& input, std::vector<u8>& ou
u32 nvhost_as_gpu::AllocateSpace(const std::vector<u8>& input, std::vector<u8>& output) {
IoctlAllocSpace params{};
std::memcpy(&params, input.data(), input.size());
LOG_WARNING(Service_NVDRV, "(STUBBED) called, pages=%x, page_size=%x, flags=%x", params.pages,
params.page_size, params.flags);
params.offset = 0xdeadbeef; // TODO(ogniK): Actually allocate space and give a real offset
LOG_DEBUG(Service_NVDRV, "called, pages=%x, page_size=%x, flags=%x", params.pages,
params.page_size, params.flags);
const u64 size{static_cast<u64>(params.pages) * static_cast<u64>(params.page_size)};
if (params.flags & 1) {
params.offset = memory_manager->AllocateSpace(params.offset, size, 1);
} else {
params.offset = memory_manager->AllocateSpace(size, params.align);
}
std::memcpy(output.data(), &params, output.size());
return 0;
}
@ -51,12 +59,24 @@ u32 nvhost_as_gpu::MapBufferEx(const std::vector<u8>& input, std::vector<u8>& ou
IoctlMapBufferEx params{};
std::memcpy(&params, input.data(), input.size());
LOG_WARNING(Service_NVDRV,
"(STUBBED) called, flags=%x, nvmap_handle=%x, buffer_offset=%lx, mapping_size=%lx, "
"offset=%lx",
params.flags, params.nvmap_handle, params.buffer_offset, params.mapping_size,
params.offset);
params.offset = 0x0; // TODO(ogniK): Actually map and give a real offset
LOG_DEBUG(Service_NVDRV,
"called, flags=%x, nvmap_handle=%x, buffer_offset=%lx, mapping_size=%lx, offset=%lx",
params.flags, params.nvmap_handle, params.buffer_offset, params.mapping_size,
params.offset);
if (!params.nvmap_handle) {
return 0;
}
auto object = nvmap_dev->GetObject(params.nvmap_handle);
ASSERT(object);
if (params.flags & 1) {
params.offset = memory_manager->MapBufferEx(object->addr, params.offset, object->size);
} else {
params.offset = memory_manager->MapBufferEx(object->addr, object->size);
}
std::memcpy(output.data(), &params, output.size());
return 0;
}

12
src/core/hle/service/nvdrv/devices/nvhost_as_gpu.h
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@ -4,18 +4,25 @@
#pragma once
#include <memory>
#include <utility>
#include <vector>
#include "common/common_types.h"
#include "common/swap.h"
#include "core/hle/service/nvdrv/devices/nvdevice.h"
#include "core/hle/service/nvdrv/memory_manager.h"
namespace Service {
namespace Nvidia {
namespace Devices {
class nvmap;
class nvhost_as_gpu final : public nvdevice {
public:
nvhost_as_gpu() = default;
nvhost_as_gpu(std::shared_ptr<nvmap> nvmap_dev) : nvdevice(), nvmap_dev(std::move(nvmap_dev)) {
memory_manager = std::make_shared<MemoryManager>();
}
~nvhost_as_gpu() override = default;
u32 ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) override;
@ -92,6 +99,9 @@ private:
u32 MapBufferEx(const std::vector<u8>& input, std::vector<u8>& output);
u32 BindChannel(const std::vector<u8>& input, std::vector<u8>& output);
u32 GetVARegions(const std::vector<u8>& input, std::vector<u8>& output);
std::shared_ptr<nvmap> nvmap_dev;
std::shared_ptr<MemoryManager> memory_manager;
};
} // namespace Devices

27
src/core/hle/service/nvdrv/devices/nvmap.cpp
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@ -13,10 +13,8 @@ namespace Nvidia {
namespace Devices {
VAddr nvmap::GetObjectAddress(u32 handle) const {
auto itr = handles.find(handle);
ASSERT(itr != handles.end());
auto object = itr->second;
auto object = GetObject(handle);
ASSERT(object);
ASSERT(object->status == Object::Status::Allocated);
return object->addr;
}
@ -52,7 +50,7 @@ u32 nvmap::IocCreate(const std::vector<u8>& input, std::vector<u8>& output) {
u32 handle = next_handle++;
handles[handle] = std::move(object);
LOG_WARNING(Service_NVDRV, "(STUBBED) size 0x%08X", params.size);
LOG_DEBUG(Service_NVDRV, "size=0x%08X", params.size);
params.handle = handle;
@ -64,17 +62,16 @@ u32 nvmap::IocAlloc(const std::vector<u8>& input, std::vector<u8>& output) {
IocAllocParams params;
std::memcpy(&params, input.data(), sizeof(params));
auto itr = handles.find(params.handle);
ASSERT(itr != handles.end());
auto object = GetObject(params.handle);
ASSERT(object);
auto object = itr->second;
object->flags = params.flags;
object->align = params.align;
object->kind = params.kind;
object->addr = params.addr;
object->status = Object::Status::Allocated;
LOG_WARNING(Service_NVDRV, "(STUBBED) Allocated address 0x%llx", params.addr);
LOG_DEBUG(Service_NVDRV, "called, addr=0x%llx", params.addr);
std::memcpy(output.data(), &params, sizeof(params));
return 0;
@ -86,10 +83,10 @@ u32 nvmap::IocGetId(const std::vector<u8>& input, std::vector<u8>& output) {
LOG_WARNING(Service_NVDRV, "called");
auto itr = handles.find(params.handle);
ASSERT(itr != handles.end());
auto object = GetObject(params.handle);
ASSERT(object);
params.id = itr->second->id;
params.id = object->id;
std::memcpy(output.data(), &params, sizeof(params));
return 0;
@ -123,10 +120,8 @@ u32 nvmap::IocParam(const std::vector<u8>& input, std::vector<u8>& output) {
LOG_WARNING(Service_NVDRV, "(STUBBED) called type=%u", params.type);
auto itr = handles.find(params.handle);
ASSERT(itr != handles.end());
auto object = itr->second;
auto object = GetObject(params.handle);
ASSERT(object);
ASSERT(object->status == Object::Status::Allocated);
switch (static_cast<ParamTypes>(params.type)) {

14
src/core/hle/service/nvdrv/devices/nvmap.h
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@ -26,8 +26,7 @@ public:
u32 ioctl(Ioctl command, const std::vector<u8>& input, std::vector<u8>& output) override;
private:
// Represents an nvmap object.
/// Represents an nvmap object.
struct Object {
enum class Status { Created, Allocated };
u32 id;
@ -39,10 +38,19 @@ private:
Status status;
};
std::shared_ptr<Object> GetObject(u32 handle) const {
auto itr = handles.find(handle);
if (itr != handles.end()) {
return itr->second;
}
return {};
}
private:
/// Id to use for the next handle that is created.
u32 next_handle = 1;
// Id to use for the next object that is created.
/// Id to use for the next object that is created.
u32 next_id = 1;
/// Mapping of currently allocated handles to the objects they represent.

112
src/core/hle/service/nvdrv/memory_manager.cpp Normal file
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@ -0,0 +1,112 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "core/hle/service/nvdrv/memory_manager.h"
namespace Service {
namespace Nvidia {
PAddr MemoryManager::AllocateSpace(u64 size, u64 align) {
boost::optional<PAddr> paddr = FindFreeBlock(size, align);
ASSERT(paddr);
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
PageSlot(*paddr + offset) = static_cast<u64>(PageStatus::Allocated);
}
return *paddr;
}
PAddr MemoryManager::AllocateSpace(PAddr paddr, u64 size, u64 align) {
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
if (IsPageMapped(paddr + offset)) {
return AllocateSpace(size, align);
}
}
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
PageSlot(paddr + offset) = static_cast<u64>(PageStatus::Allocated);
}
return paddr;
}
PAddr MemoryManager::MapBufferEx(VAddr vaddr, u64 size) {
vaddr &= ~Memory::PAGE_MASK;
boost::optional<PAddr> paddr = FindFreeBlock(size);
ASSERT(paddr);
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
PageSlot(*paddr + offset) = vaddr + offset;
}
return *paddr;
}
PAddr MemoryManager::MapBufferEx(VAddr vaddr, PAddr paddr, u64 size) {
vaddr &= ~Memory::PAGE_MASK;
paddr &= ~Memory::PAGE_MASK;
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
if (PageSlot(paddr + offset) != static_cast<u64>(PageStatus::Allocated)) {
return MapBufferEx(vaddr, size);
}
}
for (u64 offset = 0; offset < size; offset += Memory::PAGE_SIZE) {
PageSlot(paddr + offset) = vaddr + offset;
}
return paddr;
}
boost::optional<PAddr> MemoryManager::FindFreeBlock(u64 size, u64 align) {
PAddr paddr{};
u64 free_space{};
align = (align + Memory::PAGE_MASK) & ~Memory::PAGE_MASK;
while (paddr + free_space < MAX_ADDRESS) {
if (!IsPageMapped(paddr + free_space)) {
free_space += Memory::PAGE_SIZE;
if (free_space >= size) {
return paddr;
}
} else {
paddr += free_space + Memory::PAGE_SIZE;
free_space = 0;
const u64 remainder{paddr % align};
if (!remainder) {
paddr = (paddr - remainder) + align;
}
}
}
return {};
}
VAddr MemoryManager::PhysicalToVirtualAddress(PAddr paddr) {
VAddr base_addr = PageSlot(paddr);
ASSERT(base_addr != static_cast<u64>(PageStatus::Unmapped));
return base_addr + (paddr & Memory::PAGE_MASK);
}
bool MemoryManager::IsPageMapped(PAddr paddr) {
return PageSlot(paddr) != static_cast<u64>(PageStatus::Unmapped);
}
VAddr& MemoryManager::PageSlot(PAddr paddr) {
auto& block = page_table[(paddr >> (Memory::PAGE_BITS + PAGE_TABLE_BITS)) & PAGE_TABLE_MASK];
if (!block) {
block = std::make_unique<PageBlock>();
for (unsigned index = 0; index < PAGE_BLOCK_SIZE; index++) {
(*block)[index] = static_cast<u64>(PageStatus::Unmapped);
}
}
return (*block)[(paddr >> Memory::PAGE_BITS) & PAGE_BLOCK_MASK];
}
} // namespace Nvidia
} // namespace Service

48
src/core/hle/service/nvdrv/memory_manager.h Normal file
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@ -0,0 +1,48 @@
// Copyright 2018 yuzu emulator team
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <memory>
#include "common/common_types.h"
#include "core/memory.h"
namespace Service {
namespace Nvidia {
class MemoryManager final {
public:
MemoryManager() = default;
PAddr AllocateSpace(u64 size, u64 align);
PAddr AllocateSpace(PAddr paddr, u64 size, u64 align);
PAddr MapBufferEx(VAddr vaddr, u64 size);
PAddr MapBufferEx(VAddr vaddr, PAddr paddr, u64 size);
VAddr PhysicalToVirtualAddress(PAddr paddr);
private:
boost::optional<PAddr> FindFreeBlock(u64 size, u64 align = 1);
bool IsPageMapped(PAddr paddr);
VAddr& PageSlot(PAddr paddr);
enum class PageStatus : u64 {
Unmapped = 0xFFFFFFFFFFFFFFFFULL,
Allocated = 0xFFFFFFFFFFFFFFFEULL,
};
static constexpr u64 MAX_ADDRESS{0x10000000000ULL};
static constexpr u64 PAGE_TABLE_BITS{14};
static constexpr u64 PAGE_TABLE_SIZE{1 << PAGE_TABLE_BITS};
static constexpr u64 PAGE_TABLE_MASK{PAGE_TABLE_SIZE - 1};
static constexpr u64 PAGE_BLOCK_BITS{14};
static constexpr u64 PAGE_BLOCK_SIZE{1 << PAGE_BLOCK_BITS};
static constexpr u64 PAGE_BLOCK_MASK{PAGE_BLOCK_SIZE - 1};
using PageBlock = std::array<VAddr, PAGE_BLOCK_SIZE>;
std::array<std::unique_ptr<PageBlock>, PAGE_TABLE_SIZE> page_table{};
};
} // namespace Nvidia
} // namespace Service

2
src/core/hle/service/nvdrv/nvdrv.cpp
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@ -31,7 +31,7 @@ void InstallInterfaces(SM::ServiceManager& service_manager) {
Module::Module() {
auto nvmap_dev = std::make_shared<Devices::nvmap>();
devices["/dev/nvhost-as-gpu"] = std::make_shared<Devices::nvhost_as_gpu>();
devices["/dev/nvhost-as-gpu"] = std::make_shared<Devices::nvhost_as_gpu>(nvmap_dev);
devices["/dev/nvhost-ctrl-gpu"] = std::make_shared<Devices::nvhost_ctrl_gpu>();
devices["/dev/nvmap"] = nvmap_dev;
devices["/dev/nvdisp_disp0"] = std::make_shared<Devices::nvdisp_disp0>(nvmap_dev);