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| author | Felix Morgner <felix.morgner@ost.ch> | 2025-07-24 16:33:10 +0000 |
|---|---|---|
| committer | Felix Morgner <felix.morgner@ost.ch> | 2025-07-24 16:33:10 +0000 |
| commit | 1b65136a11453fe7e89320dfe6170a0cd75e60dd (patch) | |
| tree | b031192e5af29866e75a2c842d01e22f16877bcc /arch/x86_64/src | |
| parent | 3b9bbbb4be529f2365b8bc2e43c1c8e9a65b1a07 (diff) | |
| download | teachos-1b65136a11453fe7e89320dfe6170a0cd75e60dd.tar.xz teachos-1b65136a11453fe7e89320dfe6170a0cd75e60dd.zip | |
x86_64: clean up hw details
Diffstat (limited to 'arch/x86_64/src')
| -rw-r--r-- | arch/x86_64/src/cpu/registers.cpp (renamed from arch/x86_64/src/kernel/cpu/control_register.cpp) | 28 | ||||
| -rw-r--r-- | arch/x86_64/src/kernel/cpu/tlb.cpp | 16 | ||||
| -rw-r--r-- | arch/x86_64/src/memory/mmu.cpp | 17 |
3 files changed, 30 insertions, 31 deletions
diff --git a/arch/x86_64/src/kernel/cpu/control_register.cpp b/arch/x86_64/src/cpu/registers.cpp index 41b8cd7..7ade98d 100644 --- a/arch/x86_64/src/kernel/cpu/control_register.cpp +++ b/arch/x86_64/src/cpu/registers.cpp @@ -1,26 +1,24 @@ -#include "arch/kernel/cpu/control_register.hpp" - -#include "arch/exception_handling/panic.hpp" +#include "x86_64/cpu/registers.hpp" #include <type_traits> -namespace teachos::arch::kernel::cpu +namespace teachos::x86_64::cpu { auto read_control_register(control_register cr) -> uint64_t { uint64_t current_value; switch (cr) { - case control_register::CR0: + case control_register::cr0: asm volatile("mov %%cr0, %[output]" : [output] "=r"(current_value)); break; - case control_register::CR2: + case control_register::cr2: asm volatile("mov %%cr2, %[output]" : [output] "=r"(current_value)); break; - case control_register::CR3: + case control_register::cr3: asm volatile("mov %%cr3, %[output]" : [output] "=r"(current_value)); break; - case control_register::CR4: + case control_register::cr4: asm volatile("mov %%cr4, %[output]" : [output] "=r"(current_value)); break; } @@ -31,25 +29,25 @@ namespace teachos::arch::kernel::cpu { switch (cr) { - case control_register::CR0: + case control_register::cr0: asm volatile("mov %[input], %%cr0" : /* no output from call */ : [input] "r"(new_value) : "memory"); break; - case control_register::CR2: + case control_register::cr2: asm volatile("mov %[input], %%cr2" : /* no output from call */ : [input] "r"(new_value) : "memory"); break; - case control_register::CR3: + case control_register::cr3: asm volatile("mov %[input], %%cr3" : /* no output from call */ : [input] "r"(new_value) : "memory"); break; - case control_register::CR4: + case control_register::cr4: asm volatile("mov %[input], %%cr4" : /* no output from call */ : [input] "r"(new_value) @@ -60,7 +58,7 @@ namespace teachos::arch::kernel::cpu auto set_cr0_bit(cr0_flags flag) -> void { - auto const cr0 = read_control_register(control_register::CR0); - write_control_register(control_register::CR0, static_cast<std::underlying_type<cr0_flags>::type>(flag) | cr0); + auto const cr0 = read_control_register(control_register::cr0); + write_control_register(control_register::cr0, static_cast<std::underlying_type<cr0_flags>::type>(flag) | cr0); } -} // namespace teachos::arch::kernel::cpu +} // namespace teachos::x86_64::cpu diff --git a/arch/x86_64/src/kernel/cpu/tlb.cpp b/arch/x86_64/src/kernel/cpu/tlb.cpp deleted file mode 100644 index a09001c..0000000 --- a/arch/x86_64/src/kernel/cpu/tlb.cpp +++ /dev/null @@ -1,16 +0,0 @@ -#include "arch/kernel/cpu/tlb.hpp" - -#include "arch/kernel/cpu/control_register.hpp" - -namespace teachos::arch::kernel::cpu -{ - auto tlb_flush(memory::paging::virtual_address address) -> void - { - asm volatile("invlpg (%[input])" : /* no output from call */ : [input] "r"(address) : "memory"); - } - - auto tlb_flush_all() -> void - { - write_control_register(cpu::control_register::CR3, read_control_register(cpu::control_register::CR3)); - } -} // namespace teachos::arch::kernel::cpu diff --git a/arch/x86_64/src/memory/mmu.cpp b/arch/x86_64/src/memory/mmu.cpp new file mode 100644 index 0000000..31783fe --- /dev/null +++ b/arch/x86_64/src/memory/mmu.cpp @@ -0,0 +1,17 @@ +#include "x86_64/memory/mmu.hpp" + +#include "x86_64/cpu/registers.hpp" + +namespace teachos::x86_64::memory +{ + auto tlb_flush(linear_address address) -> void + { + asm volatile("invlpg (%[input])" : /* no output from call */ : [input] "r"(address) : "memory"); + } + + auto tlb_flush_all() -> void + { + auto current_value = cpu::read_control_register(cpu::control_register::cr3); + cpu::write_control_register(cpu::control_register::cr3, current_value); + } +} // namespace teachos::x86_64::memory |
