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`MB` and `GB` can either be interpreted as having base-10 units, or base-2. `MiB` and `GiB` removes this discrepancy so that units of memory are always interpreted using base-2 units.
78 lines
2.8 KiB
C#
78 lines
2.8 KiB
C#
using Ryujinx.HLE.HOS.Kernel.Memory;
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using System;
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namespace Ryujinx.HLE.HOS.Kernel.Common
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{
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static class KSystemControl
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{
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private const ulong KiB = 1024;
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private const ulong MiB = 1024 * KiB;
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private const ulong GiB = 1024 * MiB;
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private const ulong PageSize = 4 * KiB;
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private const ulong RequiredNonSecureSystemPoolSizeVi = 0x2238 * PageSize;
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private const ulong RequiredNonSecureSystemPoolSizeNvservices = 0x710 * PageSize;
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private const ulong RequiredNonSecureSystemPoolSizeOther = 0x80 * PageSize;
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private const ulong RequiredNonSecureSystemPoolSize =
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RequiredNonSecureSystemPoolSizeVi +
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RequiredNonSecureSystemPoolSizeNvservices +
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RequiredNonSecureSystemPoolSizeOther;
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public static ulong GetApplicationPoolSize(MemoryArrange arrange)
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{
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return arrange switch
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{
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MemoryArrange.MemoryArrange4GiB or
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MemoryArrange.MemoryArrange4GiBSystemDev or
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MemoryArrange.MemoryArrange6GiBAppletDev => 3285 * MiB,
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MemoryArrange.MemoryArrange4GiBAppletDev => 2048 * MiB,
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MemoryArrange.MemoryArrange6GiB or
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MemoryArrange.MemoryArrange8GiB => 4916 * MiB,
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_ => throw new ArgumentException($"Invalid memory arrange \"{arrange}\".")
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};
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}
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public static ulong GetAppletPoolSize(MemoryArrange arrange)
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{
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return arrange switch
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{
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MemoryArrange.MemoryArrange4GiB => 507 * MiB,
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MemoryArrange.MemoryArrange4GiBAppletDev => 1554 * MiB,
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MemoryArrange.MemoryArrange4GiBSystemDev => 448 * MiB,
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MemoryArrange.MemoryArrange6GiB => 562 * MiB,
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MemoryArrange.MemoryArrange6GiBAppletDev or
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MemoryArrange.MemoryArrange8GiB => 2193 * MiB,
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_ => throw new ArgumentException($"Invalid memory arrange \"{arrange}\".")
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};
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}
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public static ulong GetMinimumNonSecureSystemPoolSize()
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{
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return RequiredNonSecureSystemPoolSize;
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}
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public static ulong GetDramEndAddress(MemorySize size)
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{
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return DramMemoryMap.DramBase + GetDramSize(size);
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}
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public static ulong GenerateRandom()
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{
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// TODO
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return 0;
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}
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public static ulong GetDramSize(MemorySize size)
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{
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return size switch
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{
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MemorySize.MemorySize4GiB => 4 * GiB,
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MemorySize.MemorySize6GiB => 6 * GiB,
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MemorySize.MemorySize8GiB => 8 * GiB,
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_ => throw new ArgumentException($"Invalid memory size \"{size}\".")
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};
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}
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}
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} |