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Kernel/Storage: Move Identify page allocation to the AHCIPort class

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Instead of doing this in a parent class like the AHCIController, let's
do that directly in the AHCIPort class as that class is the only user of
these sort of physical pages. While it seems like we waste an entire 4KB
of physical RAM for each allocation, this could serve us later on if we
want to fetch other types of logs from the ATA device.
This commit is contained in:
Liav A 2022-04-02 01:47:44 +03:00 • committed by Idan Horowitz
parent bf82c4b81b
commit 4d36989954
4 changed files with 14 additions and 21 deletions
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4
Kernel/Storage/ATA/AHCIPort.h
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@ -55,7 +55,7 @@ private:
bool is_phy_enabled() const { return (m_port_registers.ssts & 0xf) == 3; }
bool initialize();
AHCIPort(AHCIController const&, AHCI::HBADefinedCapabilities, volatile AHCI::PortRegisters&, u32 port_index);
AHCIPort(AHCIController const&, NonnullRefPtr<Memory::PhysicalPage> identify_buffer_page, AHCI::HBADefinedCapabilities, volatile AHCI::PortRegisters&, u32 port_index);
ALWAYS_INLINE void clear_sata_error_register() const;
@ -124,6 +124,8 @@ private:
// it's probably better to just "cache" this here instead.
AHCI::HBADefinedCapabilities const m_hba_capabilities;
NonnullRefPtr<Memory::PhysicalPage> m_identify_buffer_page;
volatile AHCI::PortRegisters& m_port_registers;
WeakPtr<AHCIController> m_parent_controller;
AHCI::PortInterruptStatusBitField m_interrupt_status;