ryujinx/Ryujinx.HLE/HOS/Kernel/KernelInit.cs

136 lines
4.7 KiB
C#

using System;
namespace Ryujinx.HLE.HOS.Kernel
{
static class KernelInit
{
public static void InitializeResourceLimit(KResourceLimit ResourceLimit)
{
void EnsureSuccess(KernelResult Result)
{
if (Result != KernelResult.Success)
{
throw new InvalidOperationException($"Unexpected result \"{Result}\".");
}
}
int KernelMemoryCfg = 0;
long RamSize = GetRamSize(KernelMemoryCfg);
EnsureSuccess(ResourceLimit.SetLimitValue(LimitableResource.Memory, RamSize));
EnsureSuccess(ResourceLimit.SetLimitValue(LimitableResource.Thread, 800));
EnsureSuccess(ResourceLimit.SetLimitValue(LimitableResource.Event, 700));
EnsureSuccess(ResourceLimit.SetLimitValue(LimitableResource.TransferMemory, 200));
EnsureSuccess(ResourceLimit.SetLimitValue(LimitableResource.Session, 900));
if (!ResourceLimit.Reserve(LimitableResource.Memory, 0) ||
!ResourceLimit.Reserve(LimitableResource.Memory, 0x60000))
{
throw new InvalidOperationException("Unexpected failure reserving memory on resource limit.");
}
}
public static KMemoryRegionManager[] GetMemoryRegions()
{
KMemoryArrange Arrange = GetMemoryArrange();
return new KMemoryRegionManager[]
{
GetMemoryRegion(Arrange.Application),
GetMemoryRegion(Arrange.Applet),
GetMemoryRegion(Arrange.Service),
GetMemoryRegion(Arrange.NvServices)
};
}
private static KMemoryRegionManager GetMemoryRegion(KMemoryArrangeRegion Region)
{
return new KMemoryRegionManager(Region.Address, Region.Size, Region.EndAddr);
}
private static KMemoryArrange GetMemoryArrange()
{
int McEmemCfg = 0x1000;
ulong EmemApertureSize = (ulong)(McEmemCfg & 0x3fff) << 20;
int KernelMemoryCfg = 0;
ulong RamSize = (ulong)GetRamSize(KernelMemoryCfg);
ulong RamPart0;
ulong RamPart1;
if (RamSize * 2 > EmemApertureSize)
{
RamPart0 = EmemApertureSize / 2;
RamPart1 = EmemApertureSize / 2;
}
else
{
RamPart0 = EmemApertureSize;
RamPart1 = 0;
}
int MemoryArrange = 1;
ulong ApplicationRgSize;
switch (MemoryArrange)
{
case 2: ApplicationRgSize = 0x80000000; break;
case 0x11:
case 0x21: ApplicationRgSize = 0x133400000; break;
default: ApplicationRgSize = 0xcd500000; break;
}
ulong AppletRgSize;
switch (MemoryArrange)
{
case 2: AppletRgSize = 0x61200000; break;
case 3: AppletRgSize = 0x1c000000; break;
case 0x11: AppletRgSize = 0x23200000; break;
case 0x12:
case 0x21: AppletRgSize = 0x89100000; break;
default: AppletRgSize = 0x1fb00000; break;
}
KMemoryArrangeRegion ServiceRg;
KMemoryArrangeRegion NvServicesRg;
KMemoryArrangeRegion AppletRg;
KMemoryArrangeRegion ApplicationRg;
const ulong NvServicesRgSize = 0x29ba000;
ulong ApplicationRgEnd = DramMemoryMap.DramEnd; //- RamPart0;
ApplicationRg = new KMemoryArrangeRegion(ApplicationRgEnd - ApplicationRgSize, ApplicationRgSize);
ulong NvServicesRgEnd = ApplicationRg.Address - AppletRgSize;
NvServicesRg = new KMemoryArrangeRegion(NvServicesRgEnd - NvServicesRgSize, NvServicesRgSize);
AppletRg = new KMemoryArrangeRegion(NvServicesRgEnd, AppletRgSize);
//Note: There is an extra region used by the kernel, however
//since we are doing HLE we are not going to use that memory, so give all
//the remaining memory space to services.
ulong ServiceRgSize = NvServicesRg.Address - DramMemoryMap.SlabHeapEnd;
ServiceRg = new KMemoryArrangeRegion(DramMemoryMap.SlabHeapEnd, ServiceRgSize);
return new KMemoryArrange(ServiceRg, NvServicesRg, AppletRg, ApplicationRg);
}
private static long GetRamSize(int KernelMemoryCfg)
{
switch ((KernelMemoryCfg >> 16) & 3)
{
case 1: return 0x180000000;
case 2: return 0x200000000;
default: return 0x100000000;
}
}
}
}