mirrors/Atmosphere
1
0
Fork 0
mirror of https://github.com/Atmosphere-NX/Atmosphere.git synced 2025-05-21 18:35:13 -04:00
Code Issues Projects Releases Packages Wiki Activity

kern: update scheduler for 13.0.0 change, fix some ctz/clz bugs

Browse source
This commit is contained in:
Michael Scire 2021-10-19 01:20:28 -07:00
parent 42b6c2dd95
commit f3b532070b
9 changed files with 22 additions and 56 deletions
Download patch file Download diff file Expand all files Collapse all files

36
libraries/libmesosphere/include/mesosphere/kern_k_capabilities.hpp
View file

@ -55,48 +55,16 @@ namespace ams::kern {
return static_cast<u32>(type) + 1;
}
static constexpr u32 CountTrailingZero(u32 flag) {
for (u32 i = 0; i < BITSIZEOF(u32); i++) {
if (flag & (1u << i)) {
return i;
}
}
return BITSIZEOF(u32);
}
static constexpr u32 GetCapabilityId(CapabilityType type) {
const u32 flag = GetCapabilityFlag(type);
if (std::is_constant_evaluated()) {
return CountTrailingZero(flag);
} else {
return static_cast<u32>(__builtin_ctz(flag));
}
}
template<size_t Index, size_t Count, typename T = u32>
using Field = util::BitPack32::Field<Index, Count, T>;
#define DEFINE_FIELD(name, prev, ...) using name = Field<prev::Next, __VA_ARGS__>
template<CapabilityType Type>
static constexpr inline u32 CapabilityFlag = []() -> u32 {
return static_cast<u32>(Type) + 1;
}();
static constexpr inline u32 CapabilityFlag = static_cast<u32>(Type) + 1;
template<CapabilityType Type>
static constexpr inline u32 CapabilityId = []() -> u32 {
const u32 flag = static_cast<u32>(Type) + 1;
if (std::is_constant_evaluated()) {
for (u32 i = 0; i < BITSIZEOF(u32); i++) {
if (flag & (1u << i)) {
return i;
}
}
return BITSIZEOF(u32);
} else {
return __builtin_ctz(flag);
}
}();
static constexpr inline u32 CapabilityId = util::CountTrailingZeros<u32>(CapabilityFlag<Type>);
struct CorePriority {
using IdBits = Field<0, CapabilityId<CapabilityType::CorePriority> + 1>;