l2_cache.c File Reference

#include <stdint.h>
#include <arch/cpu.h>
#include <console/console.h>
#include <cpu/intel/l2_cache.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/msr.h>

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Data Structures
struct	latency_entry

Functions
int	calculate_l2_latency (void)
int	signal_l2 (u32 address, u32 data_high, u32 data_low, int way, u8 command)
int	read_l2 (u32 address)
int	write_l2 (u32 address, u32 data)
int	test_l2_address_alias (u32 address1, u32 address2, u32 data_high, u32 data_low)
int	calculate_l2_cache_size (void)
int	calculate_l2_physical_address_range (void)
int	set_l2_ecc (void)
int	p6_configure_l2_cache (void)

Variables
static const struct latency_entry	latency_650_t0 []
static const struct latency_entry	latency_650_t1 []
static const struct latency_entry	latency_670_t0 []
static const struct latency_entry	latency_670_t1 []
static const struct latency_entry	latency_670_t2 []
static const struct latency_entry *	latency_650 []
static const struct latency_entry *	latency_670 []

Function Documentation

calculate_l2_cache_size()

int calculate_l2_cache_size

(

void

)

Definition at line 332 of file l2_cache.c.

References address, BBL_CR_CTL3, BBLCR3_L2_SIZE, BBLCR3_L2_SIZE_256K, BBLCR3_L2_SIZE_4M, BIOS_DEBUG, c, msr_struct::lo, printk, rdmsr(), read_l2(), test_l2_address_alias(), write_l2(), and wrmsr().

Referenced by p6_configure_l2_cache().

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calculate_l2_latency()

int calculate_l2_latency

(

void

)

Definition at line 108 of file l2_cache.c.

References BBL_CR_CTL3, BIOS_DEBUG, cpuid_eax(), EBL_CR_POWERON, msr_struct::hi, IA32_PLATFORM_ID, latency_entry::key, latency_650, latency_670, msr_struct::lo, printk, rdmsr(), read_l2(), latency_entry::value, and wrmsr().

Referenced by p6_configure_l2_cache().

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calculate_l2_physical_address_range()

int calculate_l2_physical_address_range

(

void

)

Definition at line 487 of file l2_cache.c.

References BBL_CR_CTL3, BBLCR3_L2_PHYSICAL_RANGE, BIOS_DEBUG, msr_struct::lo, printk, rdmsr(), read_l2(), and wrmsr().

Referenced by p6_configure_l2_cache().

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p6_configure_l2_cache()

int p6_configure_l2_cache

(

void

)

Definition at line 565 of file l2_cache.c.

References BBL_CR_CTL3, BBLCR3_L2_ADDR_PARITY_ENABLE, BBLCR3_L2_CONFIGURED, BBLCR3_L2_CRTN_PARITY_ENABLE, BBLCR3_L2_ENABLED, BBLCR3_L2_LATENCY, BBLCR3_L2_NOT_PRESENT, BBLCR3_L2_SIZE, BIOS_DEBUG, BIOS_ERR, BIOS_INFO, calculate_l2_cache_size(), calculate_l2_latency(), calculate_l2_physical_address_range(), cpuid_eax(), disable_cache(), EBL_CR_POWERON, enable_cache(), L2CMD_MESI_I, L2CMD_TWW, msr_struct::lo, printk, rdmsr(), read_l2(), set_l2_ecc(), signal_l2(), write_l2(), and wrmsr().

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read_l2()

int read_l2

(

u32

address

)

Definition at line 236 of file l2_cache.c.

References address, BBL_CR_ADDR, L2CMD_CR, msr_struct::lo, rdmsr(), and signal_l2().

Referenced by calculate_l2_cache_size(), calculate_l2_latency(), calculate_l2_physical_address_range(), p6_configure_l2_cache(), and write_l2().

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set_l2_ecc()

int set_l2_ecc

(

void

)

Definition at line 519 of file l2_cache.c.

References BBL_CR_CTL, BBL_CR_CTL3, BBL_CR_DECC, BBLCR3_L2_ECC_CHECK_ENABLE, BBLCR3_L2_SUPPLIED_ECC, BIOS_DEBUG, msr_struct::hi, msr_struct::lo, printk, rdmsr(), test_l2_address_alias(), and wrmsr().

Referenced by p6_configure_l2_cache().

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signal_l2()

int signal_l2	(	u32	address,
		u32	data_high,
		u32	data_low,
		int	way,
		u8	command
	)

Definition at line 196 of file l2_cache.c.

References address, BBL_CR_ADDR, BBL_CR_BUSY, BBL_CR_CTL, BBL_CR_D0, BBL_CR_D3, BBL_CR_TRIG, msr_struct::hi, msr_struct::lo, rdmsr(), and wrmsr().

Referenced by p6_configure_l2_cache(), read_l2(), test_l2_address_alias(), and write_l2().

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test_l2_address_alias()

int test_l2_address_alias	(	u32	address1,
		u32	address2,
		u32	data_high,
		u32	data_low
	)

Definition at line 301 of file l2_cache.c.

References BBL_CR_D0, BBL_CR_D3, msr_struct::hi, L2CMD_TRR, L2CMD_TWW, msr_struct::lo, rdmsr(), and signal_l2().

Referenced by calculate_l2_cache_size(), and set_l2_ecc().

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write_l2()

int write_l2	(	u32	address,
		u32	data
	)

Definition at line 251 of file l2_cache.c.

References address, read_l2(), and signal_l2().

Referenced by calculate_l2_cache_size(), and p6_configure_l2_cache().

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Variable Documentation

latency_650

const struct latency_entry* latency_650[]

static

Initial value:

= {
        latency_650_t0, latency_650_t1, latency_650_t1
}

Definition at line 99 of file l2_cache.c.

Referenced by calculate_l2_latency().

latency_650_t0

const struct latency_entry latency_650_t0[]

static

Initial value:

= {
        {0x10, 0x02}, {0x50, 0x02}, {0x20, 0x04}, {0x60, 0x06},
        {0x00, 0x08}, {0x40, 0x0C}, {0x12, 0x06}, {0x52, 0x0A},
        {0x22, 0x0E}, {0x62, 0x10}, {0x02, 0x10}, {0xFF, 0x00}
}

Definition at line 1 of file l2_cache.c.

latency_650_t1

const struct latency_entry latency_650_t1[]

static

Initial value:

= {
        {0x12, 0x14}, {0x52, 0x16}, {0x22, 0x16}, {0x62, 0x16},
        {0xFF, 0x00}
}

Definition at line 1 of file l2_cache.c.

latency_670

const struct latency_entry* latency_670[]

static

Initial value:

= {
        latency_670_t0, latency_670_t1, latency_670_t2
}

Definition at line 104 of file l2_cache.c.

Referenced by calculate_l2_latency().

latency_670_t0

const struct latency_entry latency_670_t0[]

static

Initial value:

= {
        {0x60, 0x06}, {0x00, 0x08}, {0x12, 0x06}, {0x52, 0x0A},
        {0x22, 0x0E}, {0x62, 0x10}, {0x02, 0x10}, {0x42, 0x02},
        {0x11, 0x0E}, {0x51, 0x0C}, {0x21, 0x02}, {0x61, 0x10},
        {0x01, 0x10}, {0x41, 0x02}, {0xFF, 0x00}
}

Definition at line 1 of file l2_cache.c.

latency_670_t1

const struct latency_entry latency_670_t1[]

static

Initial value:

= {
        {0x22, 0x18}, {0x62, 0x18}, {0x02, 0x1A}, {0x11, 0x18},
        {0xFF, 0x00}
}

Definition at line 1 of file l2_cache.c.

latency_670_t2

const struct latency_entry latency_670_t2[]

static

Initial value:

= {
        {0x22, 0x12}, {0x62, 0x14}, {0x02, 0x16}, {0x42, 0x1E},
        {0x11, 0x12}, {0x51, 0x16}, {0x21, 0x1E}, {0x61, 0x14},
        {0x01, 0x16}, {0x41, 0x1E}, {0xFF, 0x00}
}

Definition at line 1 of file l2_cache.c.