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authorStefan Reinauer <stepan@coresystems.de>2010-04-20 13:22:02 +0000
committerStefan Reinauer <stepan@openbios.org>2010-04-20 13:22:02 +0000
commit169dc7e5ac948ccaecadcfd243551f4247df866d (patch)
tree9d5bab8e411eb785dc958f284519cc7ca78c24c5 /src/arch/i386/smp
parent29ceae2c370fcd5a7c159771050611f03de006ba (diff)
downloadcoreboot-169dc7e5ac948ccaecadcfd243551f4247df866d.tar.xz
- move src/arch/i386/smp/ioapic.c to src/arch/i386/lib/ioapic.c (has
nothing to do with SMP) - move src/arch/i386/smp/mpspec.c to src/arch/i386/boot/mpspec.c (where acpi, pirq and coreboot table generation lives) - modify src/arch/i386/boot/Makefile.inc, src/arch/i386/lib/Makefile.inc and src/arch/i386/smp/Makefile.inc accordingly - src/arch/i386/smp is now empty. drop it. - drop src/arch/i386/init/car.S (unused) Signed-off-by: Stefan Reinauer <stepan@coresystems.de> Acked-by: Patrick Georgi <patrick.georgi@coresystems.de> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5460 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/arch/i386/smp')
-rw-r--r--src/arch/i386/smp/Makefile.inc3
-rw-r--r--src/arch/i386/smp/ioapic.c135
-rw-r--r--src/arch/i386/smp/mpspec.c306
3 files changed, 0 insertions, 444 deletions
diff --git a/src/arch/i386/smp/Makefile.inc b/src/arch/i386/smp/Makefile.inc
deleted file mode 100644
index 44190587b9..0000000000
--- a/src/arch/i386/smp/Makefile.inc
+++ /dev/null
@@ -1,3 +0,0 @@
-obj-$(CONFIG_GENERATE_MP_TABLE) += mpspec.o
-obj-$(CONFIG_IOAPIC) += ioapic.o
-
diff --git a/src/arch/i386/smp/ioapic.c b/src/arch/i386/smp/ioapic.c
deleted file mode 100644
index efc2ac52fc..0000000000
--- a/src/arch/i386/smp/ioapic.c
+++ /dev/null
@@ -1,135 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2010 coresystems GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <arch/io.h>
-#include <arch/ioapic.h>
-#include <console/console.h>
-#include <cpu/x86/lapic.h>
-
-static u32 io_apic_read(u32 ioapic_base, u32 reg)
-{
- write32(ioapic_base, reg);
- return read32(ioapic_base + 0x10);
-}
-
-static void io_apic_write(u32 ioapic_base, u32 reg, u32 value)
-{
- write32(ioapic_base, reg);
- write32(ioapic_base + 0x10, value);
-}
-
-
-void clear_ioapic(u32 ioapic_base)
-{
- u32 low, high;
- u32 i, ioapic_interrupts;
-
- printk(BIOS_DEBUG, "IOAPIC: Clearing IOAPIC at 0x%08x\n", ioapic_base);
-
- /* Read the available number of interrupts */
- ioapic_interrupts = (io_apic_read(ioapic_base, 1) >> 16) & 0xff;
- if (!ioapic_interrupts || ioapic_interrupts == 0xff)
- ioapic_interrupts = 24;
- printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);
-
- low = DISABLED;
- high = NONE;
-
- for (i = 0; i < ioapic_interrupts; i++) {
- io_apic_write(ioapic_base, i * 2 + 0x10, low);
- io_apic_write(ioapic_base, i * 2 + 0x11, high);
-
- printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", i, high, low);
- }
-
- if (io_apic_read(ioapic_base, 0x10) == 0xffffffff) {
- printk(BIOS_WARNING, "IO APIC not responding.\n");
- return;
- }
-}
-
-void setup_ioapic(u32 ioapic_base, u8 ioapic_id)
-{
- u32 bsp_lapicid = lapicid();
- u32 low, high;
- u32 i, ioapic_interrupts;
-
- printk(BIOS_DEBUG, "IOAPIC: Initializing IOAPIC at 0x%08x\n", ioapic_base);
- printk(BIOS_DEBUG, "IOAPIC: Bootstrap Processor Local APIC = %02x\n",
- bsp_lapicid);
-
- if (ioapic_id) {
- printk(BIOS_DEBUG, "IOAPIC: ID = 0x%02x\n", ioapic_id);
- /* Set IOAPIC ID if it has been specified */
- io_apic_write(ioapic_base, 0x00,
- (io_apic_read(ioapic_base, 0x00) & 0xfff0ffff) |
- (ioapic_id << 24));
- }
-
- /* Read the available number of interrupts */
- ioapic_interrupts = (io_apic_read(ioapic_base, 1) >> 16) & 0xff;
- if (!ioapic_interrupts || ioapic_interrupts == 0xff)
- ioapic_interrupts = 24;
- printk(BIOS_DEBUG, "IOAPIC: %d interrupts\n", ioapic_interrupts);
-
-
-// XXX this decision should probably be made elsewhere, and
-// it's the C3, not the EPIA this depends on.
-#if defined(CONFIG_EPIA_VT8237R_INIT) && CONFIG_EPIA_VT8237R_INIT
-#define IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS
-#else
-#define IOAPIC_INTERRUPTS_ON_FSB
-#endif
-
-#ifdef IOAPIC_INTERRUPTS_ON_FSB
- /* For the Pentium 4 and above APICs deliver their interrupts
- * on the front side bus, enable that.
- */
- printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on FSB\n");
- io_apic_write(ioapic_base, 0x03, io_apic_read(ioapic_base, 0x03) | (1 << 0));
-#endif
-#ifdef IOAPIC_INTERRUPTS_ON_APIC_SERIAL_BUS
- printk(BIOS_DEBUG, "IOAPIC: Enabling interrupts on APIC serial bus\n");
- io_apic_write(ioapic_base, 0x03, 0);
-#endif
-
- /* Enable Virtual Wire Mode */
- low = ENABLED | TRIGGER_EDGE | POLARITY_HIGH | PHYSICAL_DEST | ExtINT;
- high = bsp_lapicid << (56 - 32);
-
- io_apic_write(ioapic_base, 0x10, low);
- io_apic_write(ioapic_base, 0x11, high);
-
- if (io_apic_read(ioapic_base, 0x10) == 0xffffffff) {
- printk(BIOS_WARNING, "IO APIC not responding.\n");
- return;
- }
-
- printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", 0, high, low);
-
- low = DISABLED;
- high = NONE;
-
- for (i = 1; i < ioapic_interrupts; i++) {
- io_apic_write(ioapic_base, i * 2 + 0x10, low);
- io_apic_write(ioapic_base, i * 2 + 0x11, high);
-
- printk(BIOS_SPEW, "IOAPIC: reg 0x%08x value 0x%08x 0x%08x\n", i, high, low);
- }
-}
diff --git a/src/arch/i386/smp/mpspec.c b/src/arch/i386/smp/mpspec.c
deleted file mode 100644
index 1beba873cc..0000000000
--- a/src/arch/i386/smp/mpspec.c
+++ /dev/null
@@ -1,306 +0,0 @@
-#include <console/console.h>
-#include <device/path.h>
-#include <device/pci_ids.h>
-#include <cpu/cpu.h>
-#include <arch/smp/mpspec.h>
-#include <string.h>
-#include <arch/cpu.h>
-#include <cpu/x86/lapic.h>
-
-unsigned char smp_compute_checksum(void *v, int len)
-{
- unsigned char *bytes;
- unsigned char checksum;
- int i;
- bytes = v;
- checksum = 0;
- for(i = 0; i < len; i++) {
- checksum -= bytes[i];
- }
- return checksum;
-}
-
-void *smp_write_floating_table(unsigned long addr)
-{
- /* 16 byte align the table address */
- addr = (addr + 0xf) & (~0xf);
- return smp_write_floating_table_physaddr(addr, addr + SMP_FLOATING_TABLE_LEN);
-}
-
-void *smp_write_floating_table_physaddr(unsigned long addr, unsigned long mpf_physptr)
-{
- struct intel_mp_floating *mf;
- void *v;
-
- v = (void *)addr;
- mf = v;
- mf->mpf_signature[0] = '_';
- mf->mpf_signature[1] = 'M';
- mf->mpf_signature[2] = 'P';
- mf->mpf_signature[3] = '_';
- mf->mpf_physptr = mpf_physptr;
- mf->mpf_length = 1;
- mf->mpf_specification = 4;
- mf->mpf_checksum = 0;
- mf->mpf_feature1 = 0;
- mf->mpf_feature2 = 0;
- mf->mpf_feature3 = 0;
- mf->mpf_feature4 = 0;
- mf->mpf_feature5 = 0;
- mf->mpf_checksum = smp_compute_checksum(mf, mf->mpf_length*16);
- return v;
-}
-
-void *smp_next_mpc_entry(struct mp_config_table *mc)
-{
- void *v;
- v = (void *)(((char *)mc) + mc->mpc_length);
- return v;
-}
-static void smp_add_mpc_entry(struct mp_config_table *mc, unsigned length)
-{
- mc->mpc_length += length;
- mc->mpc_entry_count++;
-}
-
-void *smp_next_mpe_entry(struct mp_config_table *mc)
-{
- void *v;
- v = (void *)(((char *)mc) + mc->mpc_length + mc->mpe_length);
- return v;
-}
-static void smp_add_mpe_entry(struct mp_config_table *mc, mpe_t mpe)
-{
- mc->mpe_length += mpe->mpe_length;
-}
-
-void smp_write_processor(struct mp_config_table *mc,
- unsigned char apicid, unsigned char apicver,
- unsigned char cpuflag, unsigned int cpufeature,
- unsigned int featureflag)
-{
- struct mpc_config_processor *mpc;
- mpc = smp_next_mpc_entry(mc);
- memset(mpc, '\0', sizeof(*mpc));
- mpc->mpc_type = MP_PROCESSOR;
- mpc->mpc_apicid = apicid;
- mpc->mpc_apicver = apicver;
- mpc->mpc_cpuflag = cpuflag;
- mpc->mpc_cpufeature = cpufeature;
- mpc->mpc_featureflag = featureflag;
- smp_add_mpc_entry(mc, sizeof(*mpc));
-}
-
-/* If we assume a symmetric processor configuration we can
- * get all of the information we need to write the processor
- * entry from the bootstrap processor.
- * Plus I don't think linux really even cares.
- * Having the proper apicid's in the table so the non-bootstrap
- * processors can be woken up should be enough.
- */
-void smp_write_processors(struct mp_config_table *mc)
-{
- int boot_apic_id;
- unsigned apic_version;
- unsigned cpu_features;
- unsigned cpu_feature_flags;
- struct cpuid_result result;
- device_t cpu;
-
- boot_apic_id = lapicid();
- apic_version = lapic_read(LAPIC_LVR) & 0xff;
- result = cpuid(1);
- cpu_features = result.eax;
- cpu_feature_flags = result.edx;
- for(cpu = all_devices; cpu; cpu = cpu->next) {
- unsigned long cpu_flag;
- if ((cpu->path.type != DEVICE_PATH_APIC) ||
- (cpu->bus->dev->path.type != DEVICE_PATH_APIC_CLUSTER))
- {
- continue;
- }
- if (!cpu->enabled) {
- continue;
- }
- cpu_flag = MPC_CPU_ENABLED;
- if (boot_apic_id == cpu->path.apic.apic_id) {
- cpu_flag = MPC_CPU_ENABLED | MPC_CPU_BOOTPROCESSOR;
- }
- smp_write_processor(mc,
- cpu->path.apic.apic_id, apic_version,
- cpu_flag, cpu_features, cpu_feature_flags
- );
- }
-}
-
-void smp_write_bus(struct mp_config_table *mc,
- unsigned char id, const char *bustype)
-{
- struct mpc_config_bus *mpc;
- mpc = smp_next_mpc_entry(mc);
- memset(mpc, '\0', sizeof(*mpc));
- mpc->mpc_type = MP_BUS;
- mpc->mpc_busid = id;
- memcpy(mpc->mpc_bustype, bustype, sizeof(mpc->mpc_bustype));
- smp_add_mpc_entry(mc, sizeof(*mpc));
-}
-
-void smp_write_ioapic(struct mp_config_table *mc,
- unsigned char id, unsigned char ver,
- unsigned long apicaddr)
-{
- struct mpc_config_ioapic *mpc;
- mpc = smp_next_mpc_entry(mc);
- memset(mpc, '\0', sizeof(*mpc));
- mpc->mpc_type = MP_IOAPIC;
- mpc->mpc_apicid = id;
- mpc->mpc_apicver = ver;
- mpc->mpc_flags = MPC_APIC_USABLE;
- mpc->mpc_apicaddr = apicaddr;
- smp_add_mpc_entry(mc, sizeof(*mpc));
-}
-
-void smp_write_intsrc(struct mp_config_table *mc,
- unsigned char irqtype, unsigned short irqflag,
- unsigned char srcbus, unsigned char srcbusirq,
- unsigned char dstapic, unsigned char dstirq)
-{
- struct mpc_config_intsrc *mpc;
- mpc = smp_next_mpc_entry(mc);
- memset(mpc, '\0', sizeof(*mpc));
- 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;
- smp_add_mpc_entry(mc, sizeof(*mpc));
-#ifdef DEBUG_MPTABLE
- printk(BIOS_DEBUG, "add intsrc srcbus 0x%x srcbusirq 0x%x, dstapic 0x%x, dstirq 0x%x\n",
- srcbus, srcbusirq, dstapic, dstirq);
- hexdump(__func__, mpc, sizeof(*mpc));
-#endif
-}
-
-void smp_write_intsrc_pci_bridge(struct mp_config_table *mc,
- unsigned char irqtype, unsigned short irqflag,
- struct device *dev,
- unsigned char dstapic, unsigned char *dstirq)
-{
- struct device *child;
-
- int linkn;
- int i;
- int srcbus;
- int slot;
-
- struct bus *link;
- unsigned char dstirq_x[4];
-
- for (linkn = 0; linkn < dev->links; linkn++) {
-
- link = &dev->link[linkn];
- child = link->children;
- srcbus = link->secondary;
-
- while (child) {
- if (child->path.type != DEVICE_PATH_PCI)
- goto next;
-
- slot = (child->path.pci.devfn >> 3);
- /* round pins */
- for (i = 0; i < 4; i++)
- dstirq_x[i] = dstirq[(i + slot) % 4];
-
- if ((child->class >> 16) != PCI_BASE_CLASS_BRIDGE) {
- /* pci device */
- printk(BIOS_DEBUG, "route irq: %s\n", dev_path(child));
- for (i = 0; i < 4; i++)
- smp_write_intsrc(mc, irqtype, irqflag, srcbus, (slot<<2)|i, dstapic, dstirq_x[i]);
- goto next;
- }
-
- switch (child->class>>8) {
- case PCI_CLASS_BRIDGE_PCI:
- case PCI_CLASS_BRIDGE_PCMCIA:
- case PCI_CLASS_BRIDGE_CARDBUS:
- printk(BIOS_DEBUG, "route irq bridge: %s\n", dev_path(child));
- smp_write_intsrc_pci_bridge(mc, irqtype, irqflag, child, dstapic, dstirq_x);
- }
-
- next:
- child = child->sibling;
- }
-
- }
-}
-
-void smp_write_lintsrc(struct mp_config_table *mc,
- unsigned char irqtype, unsigned short irqflag,
- unsigned char srcbusid, unsigned char srcbusirq,
- unsigned char destapic, unsigned char destapiclint)
-{
- struct mpc_config_lintsrc *mpc;
- mpc = smp_next_mpc_entry(mc);
- memset(mpc, '\0', sizeof(*mpc));
- mpc->mpc_type = MP_LINTSRC;
- mpc->mpc_irqtype = irqtype;
- mpc->mpc_irqflag = irqflag;
- mpc->mpc_srcbusid = srcbusid;
- mpc->mpc_srcbusirq = srcbusirq;
- mpc->mpc_destapic = destapic;
- mpc->mpc_destapiclint = destapiclint;
- smp_add_mpc_entry(mc, sizeof(*mpc));
-}
-
-void smp_write_address_space(struct mp_config_table *mc,
- unsigned char busid, unsigned char address_type,
- unsigned int address_base_low, unsigned int address_base_high,
- unsigned int address_length_low, unsigned int address_length_high)
-{
- struct mp_exten_system_address_space *mpe;
- mpe = smp_next_mpe_entry(mc);
- memset(mpe, '\0', sizeof(*mpe));
- mpe->mpe_type = MPE_SYSTEM_ADDRESS_SPACE;
- mpe->mpe_length = sizeof(*mpe);
- mpe->mpe_busid = busid;
- mpe->mpe_address_type = address_type;
- mpe->mpe_address_base_low = address_base_low;
- mpe->mpe_address_base_high = address_base_high;
- mpe->mpe_address_length_low = address_length_low;
- mpe->mpe_address_length_high = address_length_high;
- smp_add_mpe_entry(mc, (mpe_t)mpe);
-}
-
-
-void smp_write_bus_hierarchy(struct mp_config_table *mc,
- unsigned char busid, unsigned char bus_info,
- unsigned char parent_busid)
-{
- struct mp_exten_bus_hierarchy *mpe;
- mpe = smp_next_mpe_entry(mc);
- memset(mpe, '\0', sizeof(*mpe));
- 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;
- smp_add_mpe_entry(mc, (mpe_t)mpe);
-}
-
-void smp_write_compatibility_address_space(struct mp_config_table *mc,
- unsigned char busid, unsigned char address_modifier,
- unsigned int range_list)
-{
- struct mp_exten_compatibility_address_space *mpe;
- mpe = smp_next_mpe_entry(mc);
- memset(mpe, '\0', sizeof(*mpe));
- mpe->mpe_type = MPE_COMPATIBILITY_ADDRESS_SPACE;
- mpe->mpe_length = sizeof(*mpe);
- mpe->mpe_busid = busid;
- mpe->mpe_address_modifier = address_modifier;
- mpe->mpe_range_list = range_list;
- smp_add_mpe_entry(mc, (mpe_t)mpe);
-}
-