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Kernel: AML tries to initialize processors when entering ACPI mode

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I had forgotten that Processors used to be a different definition
in AML.

I also implemented reads/writes for FieldElement/IndexFieldElement
that fit in 64 bits. Reads and writes to buffer are still a TODO.
This commit is contained in:
Bananymous
2024-04-10 21:11:47 +03:00
parent 3f2e110eab
commit 0184e5beb5
6 changed files with 451 additions and 296 deletions
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31
kernel/include/kernel/ACPI/AML/Field.h
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@@ -40,13 +40,13 @@ namespace Kernel::ACPI::AML
struct FieldElement : public NamedObject
{
uint64_t bit_offset;
uint32_t bit_count;
uint64_t bit_count;
FieldRules access_rules;
BAN::RefPtr<OpRegion> op_region = nullptr;
BAN::RefPtr<OpRegion> op_region;
FieldElement(NameSeg name, uint64_t bit_offset, uint32_t bit_count, FieldRules access_rules)
FieldElement(NameSeg name, uint64_t bit_offset, uint64_t bit_count, FieldRules access_rules)
: NamedObject(Node::Type::FieldElement, name)
, bit_offset(bit_offset)
, bit_count(bit_count)
@@ -59,16 +59,10 @@ namespace Kernel::ACPI::AML
void debug_print(int indent) const override;
private:
struct AccessType
{
uint64_t offset;
uint64_t mask;
uint32_t access_size;
uint32_t shift;
};
BAN::Optional<AccessType> determine_access_type() const;
BAN::Optional<uint64_t> read_field(uint64_t offset, uint32_t access_size) const;
bool write_field(uint64_t offset, uint32_t access_size, uint64_t value) const;
BAN::Optional<uint64_t> evaluate_internal();
bool store_internal(uint64_t value);
friend struct IndexFieldElement;
};
struct Field
@@ -79,20 +73,23 @@ namespace Kernel::ACPI::AML
struct IndexFieldElement : public NamedObject
{
uint64_t bit_offset;
uint32_t bit_count;
uint64_t bit_count;
FieldRules access_rules;
BAN::RefPtr<FieldElement> index_element = nullptr;
BAN::RefPtr<FieldElement> data_element = nullptr;
BAN::RefPtr<FieldElement> index_element;
BAN::RefPtr<FieldElement> data_element;
IndexFieldElement(NameSeg name, uint64_t bit_offset, uint32_t bit_count, FieldRules access_rules)
IndexFieldElement(NameSeg name, uint64_t bit_offset, uint64_t bit_count, FieldRules access_rules)
: NamedObject(Node::Type::IndexFieldElement, name)
, bit_offset(bit_offset)
, bit_count(bit_count)
, access_rules(access_rules)
{}
BAN::RefPtr<Node> evaluate() override;
bool store(BAN::RefPtr<Node> source) override;
void debug_print(int indent) const override;
};