[U-Boot] [PATCH 08/10] x86: Add MultiProcessor (MP) table APIs
Simon Glass
sjg at chromium.org
Tue Jun 16 04:46:51 CEST 2015
Hi Bin,
On 15 June 2015 at 02:00, Bin Meng <bmeng.cn at gmail.com> wrote:
> The MP table provides a way for the operating system to support
> for symmetric multiprocessing as well as symmetric I/O interrupt
> handling with the local APIC and I/O APIC. We provide a bunch of
> APIs for U-Boot to write the floating table, configuration table
> header as well as base and extended table entries.
>
> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
> ---
>
> arch/x86/include/asm/mpspec.h | 434 ++++++++++++++++++++++++++++++++++++++++++
> arch/x86/lib/Makefile | 1 +
> arch/x86/lib/mpspec.c | 238 +++++++++++++++++++++++
> 3 files changed, 673 insertions(+)
> create mode 100644 arch/x86/include/asm/mpspec.h
> create mode 100644 arch/x86/lib/mpspec.c
Does this avoid needing SFI?
I have one request below.
>
> diff --git a/arch/x86/include/asm/mpspec.h b/arch/x86/include/asm/mpspec.h
> new file mode 100644
> index 0000000..c489a58
> --- /dev/null
> +++ b/arch/x86/include/asm/mpspec.h
> @@ -0,0 +1,434 @@
> +/*
> + * Copyright (C) 2015, Bin Meng <bmeng.cn at gmail.com>
> + *
> + * Adapted from coreboot src/arch/x86/include/arch/smp/mpspec.h
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#ifndef __ASM_MPSPEC_H
> +#define __ASM_MPSPEC_H
> +
> +/*
> + * Structure definitions for SMP machines following the
> + * Intel MultiProcessor Specification 1.4
> + */
> +
> +#define MPSPEC_V14 4
> +
> +#define MPF_SIGNATURE "_MP_"
> +
> +struct mp_floating_table {
> + char mpf_signature[4]; /* "_MP_" */
> + u32 mpf_physptr; /* Configuration table address */
> + u8 mpf_length; /* Our length (paragraphs) */
> + u8 mpf_spec; /* Specification version */
> + u8 mpf_checksum; /* Checksum (makes sum 0) */
> + u8 mpf_feature1; /* Predefined or Unique configuration? */
> + u8 mpf_feature2; /* Bit7 set for IMCR/PIC */
> + u8 mpf_feature3; /* Unused (0) */
> + u8 mpf_feature4; /* Unused (0) */
> + u8 mpf_feature5; /* Unused (0) */
> +};
> +
> +#define MPC_SIGNATURE "PCMP"
> +
> +struct mp_config_table {
> + char mpc_signature[4]; /* "PCMP" */
> + u16 mpc_length; /* Size of table */
> + u8 mpc_spec; /* Specification version */
> + u8 mpc_checksum; /* Checksum (makes sum 0) */
> + char mpc_oem[8]; /* OEM ID */
> + char mpc_product[12]; /* Product ID */
> + u32 mpc_oemptr; /* OEM table address */
> + u16 mpc_oemsize; /* OEM table size */
> + u16 mpc_entry_count; /* Number of entries in the table */
> + u32 mpc_lapic; /* Local APIC address */
> + u16 mpe_length; /* Extended table size */
> + u8 mpe_checksum; /* Extended table checksum */
> + u8 reserved;
> +};
> +
> +/* Base MP configuration table entry types */
> +
> +enum mp_base_config_entry_type {
> + MP_PROCESSOR,
> + MP_BUS,
> + MP_IOAPIC,
> + MP_INTSRC,
> + MP_LINTSRC
> +};
> +
> +#define MPC_CPU_EN (1 << 0)
> +#define MPC_CPU_BP (1 << 1)
> +
> +struct mpc_config_processor {
> + u8 mpc_type;
> + u8 mpc_apicid;
> + u8 mpc_apicver;
> + u8 mpc_cpuflag;
> + u32 mpc_cpusignature;
> + u32 mpc_cpufeature;
> + u32 mpc_reserved[2];
> +};
> +
> +#define BUSTYPE_CBUS "CBUS "
> +#define BUSTYPE_CBUSII "CBUSII"
> +#define BUSTYPE_EISA "EISA "
> +#define BUSTYPE_FUTURE "FUTURE"
> +#define BUSTYPE_INTERN "INTERN"
> +#define BUSTYPE_ISA "ISA "
> +#define BUSTYPE_MBI "MBI "
> +#define BUSTYPE_MBII "MBII "
> +#define BUSTYPE_MCA "MCA "
> +#define BUSTYPE_MPI "MPI "
> +#define BUSTYPE_MPSA "MPSA "
> +#define BUSTYPE_NUBUS "NUBUS "
> +#define BUSTYPE_PCI "PCI "
> +#define BUSTYPE_PCMCIA "PCMCIA"
> +#define BUSTYPE_TC "TC "
> +#define BUSTYPE_VL "VL "
> +#define BUSTYPE_VME "VME "
> +#define BUSTYPE_XPRESS "XPRESS"
> +
> +struct mpc_config_bus {
> + u8 mpc_type;
> + u8 mpc_busid;
> + u8 mpc_bustype[6];
> +};
> +
> +#define MPC_APIC_USABLE (1 << 0)
> +
> +struct mpc_config_ioapic {
> + u8 mpc_type;
> + u8 mpc_apicid;
> + u8 mpc_apicver;
> + u8 mpc_flags;
> + u32 mpc_apicaddr;
> +};
> +
> +enum mp_irq_source_types {
> + MP_INT,
> + MP_NMI,
> + MP_SMI,
> + MP_EXTINT
> +};
> +
> +#define MP_IRQ_POLARITY_DEFAULT 0x0
> +#define MP_IRQ_POLARITY_HIGH 0x1
> +#define MP_IRQ_POLARITY_LOW 0x3
> +#define MP_IRQ_POLARITY_MASK 0x3
> +#define MP_IRQ_TRIGGER_DEFAULT 0x0
> +#define MP_IRQ_TRIGGER_EDGE 0x4
> +#define MP_IRQ_TRIGGER_LEVEL 0xc
> +#define MP_IRQ_TRIGGER_MASK 0xc
> +
> +#define MP_APIC_ALL 0xff
> +
> +struct mpc_config_intsrc {
> + u8 mpc_type;
> + u8 mpc_irqtype;
> + u16 mpc_irqflag;
> + u8 mpc_srcbus;
> + u8 mpc_srcbusirq;
> + u8 mpc_dstapic;
> + u8 mpc_dstirq;
> +};
> +
> +struct mpc_config_lintsrc {
> + u8 mpc_type;
> + u8 mpc_irqtype;
> + u16 mpc_irqflag;
> + u8 mpc_srcbusid;
> + u8 mpc_srcbusirq;
> + u8 mpc_destapic;
> + u8 mpc_destlint;
> +};
> +
> +/* Extended MP configuration table entry types */
> +
> +enum mp_ext_config_entry_type {
> + MPE_SYSTEM_ADDRESS_SPACE = 128,
> + MPE_BUS_HIERARCHY,
> + MPE_COMPAT_ADDRESS_SPACE
> +};
> +
> +struct mp_ext_config {
> + u8 mpe_type;
> + u8 mpe_length;
> +};
> +
> +#define ADDRESS_TYPE_IO 0
> +#define ADDRESS_TYPE_MEM 1
> +#define ADDRESS_TYPE_PREFETCH 2
> +
> +struct mp_ext_system_address_space {
> + u8 mpe_type;
> + u8 mpe_length;
> + u8 mpe_busid;
> + u8 mpe_addr_type;
> + u32 mpe_addr_base_low;
> + u32 mpe_addr_base_high;
> + u32 mpe_addr_length_low;
> + u32 mpe_addr_length_high;
> +};
> +
> +#define BUS_SUBTRACTIVE_DECODE (1 << 0)
> +
> +struct mp_ext_bus_hierarchy {
> + u8 mpe_type;
> + u8 mpe_length;
> + u8 mpe_busid;
> + u8 mpe_bus_info;
> + u8 mpe_parent_busid;
> + u8 reserved[3];
> +};
> +
> +#define ADDRESS_RANGE_ADD 0
> +#define ADDRESS_RANGE_SUBTRACT 1
> +
> +/*
> + * X100 - X3FF
> + * X500 - X7FF
> + * X900 - XBFF
> + * XD00 - XFFF
> + */
> +#define RANGE_LIST_IO_ISA 0
> +/*
> + * X3B0 - X3BB
> + * X3C0 - X3DF
> + * X7B0 - X7BB
> + * X7C0 - X7DF
> + * XBB0 - XBBB
> + * XBC0 - XBDF
> + * XFB0 - XFBB
> + * XFC0 - XCDF
> + */
> +#define RANGE_LIST_IO_VGA 1
> +
> +struct mp_ext_compat_address_space {
> + u8 mpe_type;
> + u8 mpe_length;
> + u8 mpe_busid;
> + u8 mpe_addr_modifier;
> + u32 mpe_range_list;
> +};
> +
> +/**
> + * mp_next_mpc_entry() - Compute MP configuration table end to be used as
> + * next base table entry start address
> + *
> + * This computes the end address of current MP configuration table, without
> + * counting any extended configuration table entry.
> + *
> + * @mc: configuration table header address
> + * @return: configuration table end address
> + */
> +static inline u32 mp_next_mpc_entry(struct mp_config_table *mc)
> +{
> + return (u32)mc + mc->mpc_length;
> +}
> +
> +/**
> + * mp_add_mpc_entry() - Add a base MP configuration table entry
> + *
> + * This adds the base MP configuration table entry size with
> + * added base table entry length and increases entry count by 1.
> + *
> + * @mc: configuration table header address
> + * @length: length of the added table entry
> + */
> +static inline void mp_add_mpc_entry(struct mp_config_table *mc, u16 length)
Can we avoid using u16 and u8 in parameters? It creates unnecessary
masking I think, and looks ugly. unsigned int or uint should work. I
think u32 is OK if you need it, although I'd even question that.
> +{
> + mc->mpc_length += length;
> + mc->mpc_entry_count++;
> +}
> +
> +/**
> + * mp_next_mpe_entry() - Compute MP configuration table end to be used as
> + * next extended table entry start address
> + *
> + * This computes the end address of current MP configuration table,
> + * including any extended configuration table entry.
> + *
> + * @mc: configuration table header address
> + * @return: configuration table end address
> + */
> +static inline u32 mp_next_mpe_entry(struct mp_config_table *mc)
> +{
> + return (u32)mc + mc->mpc_length + mc->mpe_length;
> +}
> +
> +/**
> + * mp_add_mpe_entry() - Add an extended MP configuration table entry
> + *
> + * This adds the extended MP configuration table entry size with
> + * added extended table entry length.
> + *
> + * @mc: configuration table header address
> + * @mpe: extended table entry base address
> + */
> +static inline void mp_add_mpe_entry(struct mp_config_table *mc,
> + struct mp_ext_config *mpe)
> +{
> + mc->mpe_length += mpe->mpe_length;
> +}
> +
> +/**
> + * mp_write_floating_table() - Write the MP floating table
> + *
> + * This writes the MP floating table, and points MP configuration table
> + * to its end address so that MP configuration table follows immediately
> + * after the floating table.
> + *
> + * @mf: MP floating table base address
> + * @return: MP configuration table header address
> + */
> +struct mp_config_table *mp_write_floating_table(struct mp_floating_table *mf);
> +
> +/**
> + * mp_config_table_init() - Initialize the MP configuration table header
> + *
> + * This populates the MP configuration table header with valid bits.
> + *
> + * @mc: MP configuration table header address
> + */
> +void mp_config_table_init(struct mp_config_table *mc);
> +
> +/**
> + * mp_write_processor() - Write a processor entry
> + *
> + * This writes a processor entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + */
> +void mp_write_processor(struct mp_config_table *mc);
> +
> +/**
> + * mp_write_bus() - Write a bus entry
> + *
> + * This writes a bus entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @id: bus id
> + * @bustype: bus type name
> + */
> +void mp_write_bus(struct mp_config_table *mc, u8 id, const char *bustype);
> +
> +/**
> + * mp_write_ioapic() - Write an I/O APIC entry
> + *
> + * This writes an I/O APIC entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @id: I/O APIC id
> + * @ver: I/O APIC version
> + * @apicaddr: I/O APIC address
> + */
> +void mp_write_ioapic(struct mp_config_table *mc, u8 id, u8 ver, u32 apicaddr);
> +
> +/**
> + * mp_write_intsrc() - Write an I/O interrupt assignment entry
> + *
> + * This writes an I/O interrupt assignment entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @irqtype: IRQ type (INT/NMI/SMI/ExtINT)
> + * @irqflag: IRQ flag (level/trigger)
> + * @srcbus: source bus id where the interrupt comes from
> + * @srcbusirq: IRQ number mapped on the source bus
> + * @dstapic: destination I/O APIC id where the interrupt goes to
> + * @dstirq: destination I/O APIC pin where the interrupt goes to
> + */
> +void mp_write_intsrc(struct mp_config_table *mc, u8 irqtype, u16 irqflag,
> + u8 srcbus, u8 srcbusirq, u8 dstapic, u8 dstirq);
> +
> +/**
> + * mp_write_pci_intsrc() - Write a PCI interrupt assignment entry
> + *
> + * This writes a PCI interrupt assignment entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @irqtype: IRQ type (INT/NMI/SMI/ExtINT)
> + * @srcbus: PCI bus number where the interrupt comes from
> + * @dev: device number on the PCI bus
> + * @pin: PCI interrupt pin (INT A/B/C/D)
> + * @dstapic: destination I/O APIC id where the interrupt goes to
> + * @dstirq: destination I/O APIC pin where the interrupt goes to
> + */
> +void mp_write_pci_intsrc(struct mp_config_table *mc, u8 irqtype,
> + u8 srcbus, u8 dev, u8 pin, u8 dstapic, u8 dstirq);
> +
> +/**
> + * mp_write_lintsrc() - Write a local interrupt assignment entry
> + *
> + * This writes a local interrupt assignment entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @irqtype: IRQ type (INT/NMI/SMI/ExtINT)
> + * @irqflag: IRQ flag (level/trigger)
> + * @srcbus: PCI bus number where the interrupt comes from
> + * @srcbusirq: IRQ number mapped on the source bus
> + * @dstapic: destination local APIC id where the interrupt goes to
> + * @destlint: destination local APIC pin where the interrupt goes to
> + */
> +void mp_write_lintsrc(struct mp_config_table *mc, u8 irqtype, u16 irqflag,
> + u8 srcbus, u8 srcbusirq, u8 destapic, u8 destlint);
> +
> +
> +/**
> + * mp_write_address_space() - Write a system address space entry
> + *
> + * This writes a system address space entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @busid: bus id for the bus where system address space is mapped
> + * @addr_type: system address type
> + * @addr_base_low: starting address low
> + * @addr_base_high: starting address high
> + * @addr_length_low: address length low
> + * @addr_length_high: address length high
> + */
> +void mp_write_address_space(struct mp_config_table *mc,
> + u8 busid, u8 addr_type,
> + u32 addr_base_low, u32 addr_base_high,
> + u32 addr_length_low, u32 addr_length_high);
> +
> +/**
> + * mp_write_bus_hierarchy() - Write a bus hierarchy descriptor entry
> + *
> + * This writes a bus hierarchy descriptor entry to the configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @busid: bus id
> + * @bus_info: bit0 indicates if the bus is a subtractive decode bus
> + * @parent_busid: parent bus id
> + */
> +void mp_write_bus_hierarchy(struct mp_config_table *mc,
> + u8 busid, u8 bus_info, u8 parent_busid);
> +
> +/**
> + * mp_write_compat_address_space() - Write a compat bus address space entry
> + *
> + * This writes a compatibility bus address space modifier entry to the
> + * configuration table.
> + *
> + * @mc: MP configuration table header address
> + * @busid: bus id
> + * @addr_modifier: add or subtract to predefined address range list
> + * @range_list: list of predefined address space ranges
> + */
> +void mp_write_compat_address_space(struct mp_config_table *mc, u8 busid,
> + u8 addr_modifier, u32 range_list);
> +
> +/**
> + * mptable_finalize() - Finalize the MP table
> + *
> + * This finalizes the MP table by calculating required checksums.
> + *
> + * @mc: MP configuration table header address
> + * @return: MP table end address
> + */
> +u32 mptable_finalize(struct mp_config_table *mc);
> +
> +#endif /* __ASM_MPSPEC_H */
> diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile
> index 70ad19b..43489fd 100644
> --- a/arch/x86/lib/Makefile
> +++ b/arch/x86/lib/Makefile
> @@ -15,6 +15,7 @@ obj-y += gcc.o
> obj-y += init_helpers.o
> obj-y += interrupts.o
> obj-y += lpc-uclass.o
> +obj-y += mpspec.o
> obj-y += cmd_mtrr.o
> obj-$(CONFIG_SYS_PCAT_INTERRUPTS) += pcat_interrupts.o
> obj-$(CONFIG_SYS_PCAT_TIMER) += pcat_timer.o
> diff --git a/arch/x86/lib/mpspec.c b/arch/x86/lib/mpspec.c
> new file mode 100644
> index 0000000..657df22
> --- /dev/null
> +++ b/arch/x86/lib/mpspec.c
> @@ -0,0 +1,238 @@
> +/*
> + * Copyright (C) 2015, Bin Meng <bmeng.cn at gmail.com>
> + *
> + * Adapted from coreboot src/arch/x86/boot/mpspec.c
> + *
> + * SPDX-License-Identifier: GPL-2.0+
> + */
> +
> +#include <common.h>
> +#include <cpu.h>
> +#include <dm.h>
> +#include <asm/cpu.h>
> +#include <asm/ioapic.h>
> +#include <asm/lapic.h>
> +#include <asm/mpspec.h>
> +#include <asm/tables.h>
> +#include <dm/uclass-internal.h>
> +
> +struct mp_config_table *mp_write_floating_table(struct mp_floating_table *mf)
> +{
> + u32 mc;
> +
> + memcpy(mf->mpf_signature, MPF_SIGNATURE, 4);
> + mf->mpf_physptr = (u32)mf + sizeof(struct mp_floating_table);
> + mf->mpf_length = 1;
> + mf->mpf_spec = MPSPEC_V14;
> + mf->mpf_checksum = 0;
> + /* We don't use the default configuration table */
> + mf->mpf_feature1 = 0;
> + /* Indicate that virtual wire mode is always implemented */
> + mf->mpf_feature2 = 0;
> + mf->mpf_feature3 = 0;
> + mf->mpf_feature4 = 0;
> + mf->mpf_feature5 = 0;
> + mf->mpf_checksum = table_compute_checksum(mf, mf->mpf_length * 16);
> +
> + mc = (u32)mf + sizeof(struct mp_floating_table);
> + return (struct mp_config_table *)mc;
> +}
> +
> +void mp_config_table_init(struct mp_config_table *mc)
> +{
> + int start, len;
> + int i;
> +
> + memcpy(mc->mpc_signature, MPC_SIGNATURE, 4);
> + mc->mpc_length = sizeof(struct mp_config_table);
> + mc->mpc_spec = MPSPEC_V14;
> + mc->mpc_checksum = 0;
> + mc->mpc_oemptr = 0;
> + mc->mpc_oemsize = 0;
> + mc->mpc_entry_count = 0;
> + mc->mpc_lapic = LAPIC_DEFAULT_BASE;
> + mc->mpe_length = 0;
> + mc->mpe_checksum = 0;
> + mc->reserved = 0;
> +
> + /* The oem/product id fields are exactly 8/12 bytes long */
> + strncpy(mc->mpc_oem, CONFIG_SYS_VENDOR, 8);
> + strncpy(mc->mpc_product, CONFIG_SYS_BOARD, 12);
> +
> + /* Fill the remaining bytes with spaces */
> + len = strlen(CONFIG_SYS_VENDOR);
> + start = len < 8 ? len : 8;
> + for (i = start; i < 8; i++)
> + mc->mpc_oem[i] = ' ';
Can we create a strncpy that pads with spaces?
> + len = strlen(CONFIG_SYS_BOARD);
> + start = len < 12 ? len : 12;
> + for (i = start; i < 12; i++)
> + mc->mpc_product[i] = ' ';
> +}
> +
> +void mp_write_processor(struct mp_config_table *mc)
> +{
> + struct mpc_config_processor *mpc;
> + struct udevice *dev;
> + u8 boot_apicid, apicver;
> + u32 cpusignature, cpufeature;
> + struct cpuid_result result;
> +
> + boot_apicid = lapicid();
> + apicver = lapic_read(LAPIC_LVR) & 0xff;
> + result = cpuid(1);
> + cpusignature = result.eax;
> + cpufeature = result.edx;
> +
> + for (uclass_find_first_device(UCLASS_CPU, &dev);
> + dev;
> + uclass_find_next_device(&dev)) {
> + struct cpu_platdata *plat = dev_get_parent_platdata(dev);
> + u8 cpuflag = MPC_CPU_EN;
> +
> + if (!device_active(dev))
> + continue;
> +
> + mpc = (struct mpc_config_processor *)mp_next_mpc_entry(mc);
> + mpc->mpc_type = MP_PROCESSOR;
> + mpc->mpc_apicid = plat->cpu_id;
> + mpc->mpc_apicver = apicver;
> + if (boot_apicid == plat->cpu_id)
> + cpuflag |= MPC_CPU_BP;
> + mpc->mpc_cpuflag = cpuflag;
> + mpc->mpc_cpusignature = cpusignature;
> + mpc->mpc_cpufeature = cpufeature;
> + mpc->mpc_reserved[0] = 0;
> + mpc->mpc_reserved[1] = 0;
> + mp_add_mpc_entry(mc, sizeof(*mpc));
> + }
> +}
> +
> +void mp_write_bus(struct mp_config_table *mc, u8 id, const char *bustype)
> +{
> + struct mpc_config_bus *mpc;
> +
> + mpc = (struct mpc_config_bus *)mp_next_mpc_entry(mc);
> + mpc->mpc_type = MP_BUS;
> + mpc->mpc_busid = id;
> + memcpy(mpc->mpc_bustype, bustype, 6);
> + mp_add_mpc_entry(mc, sizeof(*mpc));
> +}
> +
> +void mp_write_ioapic(struct mp_config_table *mc, u8 id, u8 ver, u32 apicaddr)
> +{
> + struct mpc_config_ioapic *mpc;
> +
> + mpc = (struct mpc_config_ioapic *)mp_next_mpc_entry(mc);
> + mpc->mpc_type = MP_IOAPIC;
> + mpc->mpc_apicid = id;
> + mpc->mpc_apicver = ver;
> + mpc->mpc_flags = MPC_APIC_USABLE;
> + mpc->mpc_apicaddr = apicaddr;
> + mp_add_mpc_entry(mc, sizeof(*mpc));
> +}
> +
> +void mp_write_intsrc(struct mp_config_table *mc, u8 irqtype, u16 irqflag,
> + u8 srcbus, u8 srcbusirq, u8 dstapic, u8 dstirq)
> +{
> + struct mpc_config_intsrc *mpc;
> +
> + mpc = (struct mpc_config_intsrc *)mp_next_mpc_entry(mc);
> + mpc->mpc_type = MP_INTSRC;
> + mpc->mpc_irqtype = irqtype;
> + mpc->mpc_irqflag = irqflag;
> + mpc->mpc_srcbus = srcbus;
> + mpc->mpc_srcbusirq = srcbusirq;
> + mpc->mpc_dstapic = dstapic;
> + mpc->mpc_dstirq = dstirq;
> + mp_add_mpc_entry(mc, sizeof(*mpc));
> +}
> +
> +void mp_write_pci_intsrc(struct mp_config_table *mc, u8 irqtype,
> + u8 srcbus, u8 dev, u8 pin, u8 dstapic, u8 dstirq)
> +{
> + u8 srcbusirq = (dev << 2) | (pin - 1);
> +
> + mp_write_intsrc(mc, irqtype, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW,
> + srcbus, srcbusirq, dstapic, dstirq);
> +}
> +
> +void mp_write_lintsrc(struct mp_config_table *mc, u8 irqtype, u16 irqflag,
> + u8 srcbus, u8 srcbusirq, u8 destapic, u8 destlint)
> +{
> + struct mpc_config_lintsrc *mpc;
> +
> + mpc = (struct mpc_config_lintsrc *)mp_next_mpc_entry(mc);
> + mpc->mpc_type = MP_LINTSRC;
> + mpc->mpc_irqtype = irqtype;
> + mpc->mpc_irqflag = irqflag;
> + mpc->mpc_srcbusid = srcbus;
> + mpc->mpc_srcbusirq = srcbusirq;
> + mpc->mpc_destapic = destapic;
> + mpc->mpc_destlint = destlint;
> + mp_add_mpc_entry(mc, sizeof(*mpc));
> +}
> +
> +void mp_write_address_space(struct mp_config_table *mc,
> + u8 busid, u8 addr_type,
> + u32 addr_base_low, u32 addr_base_high,
> + u32 addr_length_low, u32 addr_length_high)
> +{
> + struct mp_ext_system_address_space *mpe;
> +
> + mpe = (struct mp_ext_system_address_space *)mp_next_mpe_entry(mc);
> + mpe->mpe_type = MPE_SYSTEM_ADDRESS_SPACE;
> + mpe->mpe_length = sizeof(*mpe);
> + mpe->mpe_busid = busid;
> + mpe->mpe_addr_type = addr_type;
> + mpe->mpe_addr_base_low = addr_base_low;
> + mpe->mpe_addr_base_high = addr_base_high;
> + mpe->mpe_addr_length_low = addr_length_low;
> + mpe->mpe_addr_length_high = addr_length_high;
> + mp_add_mpe_entry(mc, (struct mp_ext_config *)mpe);
> +}
> +
> +void mp_write_bus_hierarchy(struct mp_config_table *mc,
> + u8 busid, u8 bus_info, u8 parent_busid)
> +{
> + struct mp_ext_bus_hierarchy *mpe;
> +
> + mpe = (struct mp_ext_bus_hierarchy *)mp_next_mpe_entry(mc);
> + mpe->mpe_type = MPE_BUS_HIERARCHY;
> + mpe->mpe_length = sizeof(*mpe);
> + mpe->mpe_busid = busid;
> + mpe->mpe_bus_info = bus_info;
> + mpe->mpe_parent_busid = parent_busid;
> + mpe->reserved[0] = 0;
> + mpe->reserved[1] = 0;
> + mpe->reserved[2] = 0;
> + mp_add_mpe_entry(mc, (struct mp_ext_config *)mpe);
> +}
> +
> +void mp_write_compat_address_space(struct mp_config_table *mc, u8 busid,
> + u8 addr_modifier, u32 range_list)
> +{
> + struct mp_ext_compat_address_space *mpe;
> +
> + mpe = (struct mp_ext_compat_address_space *)mp_next_mpe_entry(mc);
> + mpe->mpe_type = MPE_COMPAT_ADDRESS_SPACE;
> + mpe->mpe_length = sizeof(*mpe);
> + mpe->mpe_busid = busid;
> + mpe->mpe_addr_modifier = addr_modifier;
> + mpe->mpe_range_list = range_list;
> + mp_add_mpe_entry(mc, (struct mp_ext_config *)mpe);
> +}
> +
> +u32 mptable_finalize(struct mp_config_table *mc)
> +{
> + u32 end;
> +
> + mc->mpe_checksum = table_compute_checksum((void *)mp_next_mpc_entry(mc),
> + mc->mpe_length);
> + mc->mpc_checksum = table_compute_checksum(mc, mc->mpc_length);
> + end = mp_next_mpe_entry(mc);
> +
> + debug("Write the MP table at: %x - %x\n", (u32)mc, end);
> +
> + return end;
> +}
> --
> 1.8.2.1
>
Regards,
Simon
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