If you do not specifically know you have a Voyager based machine,
say N here, otherwise the kernel you build will not be bootable.
- config X86_NUMAQ
- bool "NUMAQ (IBM/Sequent)"
- depends on SMP && X86_32 && PCI
- select NUMA
- help
- This option is used for getting Linux to run on a (IBM/Sequent) NUMA
- multiquad box. This changes the way that processors are bootstrapped,
- and uses Clustered Logical APIC addressing mode instead of Flat Logical.
- You will need a new lynxer.elf file to flash your firmware with - send
- email to <Martin.Bligh@us.ibm.com>.
-
- config X86_SUMMIT
- bool "Summit/EXA (IBM x440)"
- depends on X86_32 && SMP
- help
- This option is needed for IBM systems that use the Summit/EXA chipset.
- In particular, it is needed for the x440.
-
- If you don't have one of these computers, you should say N here.
- If you want to build a NUMA kernel, you must select ACPI.
-
- config X86_BIGSMP
- bool "Support for other sub-arch SMP systems with more than 8 CPUs"
- depends on X86_32 && SMP
- help
- This option is needed for the systems that have more than 8 CPUs
- and if the system is not of any sub-arch type above.
-
- If you don't have such a system, you should say N here.
-
config X86_VISWS
bool "SGI 320/540 (Visual Workstation)"
- depends on X86_32
+ depends on X86_32 && !PCI
help
The SGI Visual Workstation series is an IA32-based workstation
based on SGI systems chips with some legacy PC hardware attached.
and vice versa. See <file:Documentation/sgi-visws.txt> for details.
config X86_GENERICARCH
- bool "Generic architecture (Summit, bigsmp, ES7000, default)"
+ bool "Generic architecture"
depends on X86_32
help
- This option compiles in the Summit, bigsmp, ES7000, default subarchitectures.
- It is intended for a generic binary kernel.
- If you want a NUMA kernel, select ACPI. We need SRAT for NUMA.
+ This option compiles in the NUMAQ, Summit, bigsmp, ES7000, default
+ subarchitectures. It is intended for a generic binary kernel.
+ if you select them all, kernel will probe it one by one. and will
+ fallback to default.
+
+ if X86_GENERICARCH
+
+ config X86_NUMAQ
+ bool "NUMAQ (IBM/Sequent)"
- depends on SMP && X86_32 && X86_MPPARSE
++ depends on SMP && X86_32 && PCI && X86_MPPARSE
+ select NUMA
+ help
+ This option is used for getting Linux to run on a NUMAQ (IBM/Sequent)
+ NUMA multiquad box. This changes the way that processors are
+ bootstrapped, and uses Clustered Logical APIC addressing mode instead
+ of Flat Logical. You will need a new lynxer.elf file to flash your
+ firmware with - send email to <Martin.Bligh@us.ibm.com>.
+
+ config X86_SUMMIT
+ bool "Summit/EXA (IBM x440)"
+ depends on X86_32 && SMP
+ help
+ This option is needed for IBM systems that use the Summit/EXA chipset.
+ In particular, it is needed for the x440.
config X86_ES7000
bool "Support for Unisys ES7000 IA32 series"
default y
help
This option adds a kernel parameter 'memtest', which allows memtest
- to be disabled at boot. If this option is selected, memtest
- functionality can be disabled with memtest=0 on the kernel
- command line. The purpose of this option is to allow a single
- kernel image to be distributed with memtest built in, but not
- necessarily enabled.
-
+ to be set.
+ memtest=0, mean disabled; -- default
+ memtest=1, mean do 1 test pattern;
+ ...
+ memtest=4, mean do 4 test patterns.
If you are unsure how to answer this question, answer Y.
-config MEMTEST_BOOTPARAM_VALUE
- int "Memtest boot parameter default value (0-4)"
- depends on MEMTEST_BOOTPARAM
- range 0 4
- default 0
- help
- This option sets the default value for the kernel parameter
- 'memtest', which allows memtest to be disabled at boot. If this
- option is set to 0 (zero), the memtest kernel parameter will
- default to 0, disabling memtest at bootup. If this option is
- set to 4, the memtest kernel parameter will default to 4,
- enabling memtest at bootup, and use that as pattern number.
-
- If you are unsure how to answer this question, answer 0.
-
config ACPI_SRAT
def_bool y
- depends on X86_32 && ACPI && NUMA && (X86_SUMMIT || X86_GENERICARCH)
+ depends on X86_32 && ACPI && NUMA && X86_GENERICARCH
select ACPI_NUMA
config HAVE_ARCH_PARSE_SRAT
obj-$(CONFIG_X86_32) += sys_i386_32.o i386_ksyms_32.o
obj-$(CONFIG_X86_64) += sys_x86_64.o x8664_ksyms_64.o
obj-$(CONFIG_X86_64) += syscall_64.o vsyscall_64.o setup64.o
- obj-y += bootflag.o e820_$(BITS).o
+ obj-y += bootflag.o e820.o
obj-y += pci-dma.o quirks.o i8237.o topology.o kdebugfs.o
obj-y += alternative.o i8253.o pci-nommu.o
-obj-$(CONFIG_X86_64) += bugs_64.o
obj-y += tsc_$(BITS).o io_delay.o rtc.o
obj-$(CONFIG_X86_TRAMPOLINE) += trampoline.o
if (gart_fix_e820 && !fix && aper_enabled) {
if (e820_any_mapped(aper_base, aper_base + aper_size,
E820_RAM)) {
- /* reserved it, so we can resuse it in second kernel */
+ /* reserve it, so we can reuse it in second kernel */
printk(KERN_INFO "update e820 for GART\n");
- add_memory_region(aper_base, aper_size, E820_RESERVED);
+ e820_add_region(aper_base, aper_size, E820_RESERVED);
update_e820();
}
- return;
}
+ if (!fix)
+ return;
+
/* different nodes have different setting, disable them all at first*/
- for (num = 24; num < 32; num++) {
- if (!early_is_k8_nb(read_pci_config(0, num, 3, 0x00)))
- continue;
+ for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+ int bus;
+ int dev_base, dev_limit;
+
+ bus = bus_dev_ranges[i].bus;
+ dev_base = bus_dev_ranges[i].dev_base;
+ dev_limit = bus_dev_ranges[i].dev_limit;
+
+ for (slot = dev_base; slot < dev_limit; slot++) {
+ if (!early_is_k8_nb(read_pci_config(bus, slot, 3, 0x00)))
+ continue;
- ctl = read_pci_config(0, num, 3, 0x90);
- ctl &= ~1;
- write_pci_config(0, num, 3, 0x90, ctl);
+ ctl = read_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL);
+ ctl &= ~AMD64_GARTEN;
+ write_pci_config(bus, slot, 3, AMD64_GARTAPERTURECTL, ctl);
+ }
}
}
}
if (i < mp_irq_entries) {
int apic;
- for(apic = 0; apic < nr_ioapics; apic++) {
+ for (apic = 0; apic < nr_ioapics; apic++) {
- if (mp_ioapics[apic].mpc_apicid == mp_irqs[i].mpc_dstapic)
+ if (mp_ioapics[apic].mp_apicid == mp_irqs[i].mp_dstapic)
return apic;
}
}
break;
if (!test_bit(lbus, mp_bus_not_pci) &&
- !mp_irqs[i].mpc_irqtype &&
+ !mp_irqs[i].mp_irqtype &&
(bus == lbus) &&
- (slot == ((mp_irqs[i].mpc_srcbusirq >> 2) & 0x1f))) {
- int irq = pin_2_irq(i, apic, mp_irqs[i].mpc_dstirq);
+ (slot == ((mp_irqs[i].mp_srcbusirq >> 2) & 0x1f))) {
- int irq = pin_2_irq(i,apic,mp_irqs[i].mp_dstirq);
++ int irq = pin_2_irq(i, apic, mp_irqs[i].mp_dstirq);
if (!(apic || IO_APIC_IRQ(irq)))
continue;
/*
* Determine IRQ line polarity (high active or low active):
*/
- switch (mp_irqs[idx].mpc_irqflag & 3) {
- switch (mp_irqs[idx].mp_irqflag & 3)
++ switch (mp_irqs[idx].mp_irqflag & 3) {
+ case 0: /* conforms, ie. bus-type dependent polarity */
{
- case 0: /* conforms, ie. bus-type dependent polarity */
- {
- polarity = test_bit(bus, mp_bus_not_pci)?
- default_ISA_polarity(idx):
- default_PCI_polarity(idx);
- break;
- }
- case 1: /* high active */
- {
- polarity = 0;
- break;
- }
- case 2: /* reserved */
- {
- printk(KERN_WARNING "broken BIOS!!\n");
- polarity = 1;
- break;
- }
- case 3: /* low active */
- {
- polarity = 1;
- break;
- }
- default: /* invalid */
- {
- printk(KERN_WARNING "broken BIOS!!\n");
- polarity = 1;
- break;
- }
+ polarity = test_bit(bus, mp_bus_not_pci)?
+ default_ISA_polarity(idx):
+ default_PCI_polarity(idx);
+ break;
+ }
+ case 1: /* high active */
+ {
+ polarity = 0;
+ break;
+ }
+ case 2: /* reserved */
+ {
+ printk(KERN_WARNING "broken BIOS!!\n");
+ polarity = 1;
+ break;
+ }
+ case 3: /* low active */
+ {
+ polarity = 1;
+ break;
+ }
+ default: /* invalid */
+ {
+ printk(KERN_WARNING "broken BIOS!!\n");
+ polarity = 1;
+ break;
+ }
}
return polarity;
}
/*
* Determine IRQ trigger mode (edge or level sensitive):
*/
- switch ((mp_irqs[idx].mpc_irqflag>>2) & 3) {
- switch ((mp_irqs[idx].mp_irqflag>>2) & 3)
++ switch ((mp_irqs[idx].mp_irqflag>>2) & 3) {
+ case 0: /* conforms, ie. bus-type dependent */
{
- case 0: /* conforms, ie. bus-type dependent */
- {
- trigger = test_bit(bus, mp_bus_not_pci)?
- default_ISA_trigger(idx):
- default_PCI_trigger(idx);
+ trigger = test_bit(bus, mp_bus_not_pci)?
+ default_ISA_trigger(idx):
+ default_PCI_trigger(idx);
#if defined(CONFIG_EISA) || defined(CONFIG_MCA)
- switch (mp_bus_id_to_type[bus])
- {
- case MP_BUS_ISA: /* ISA pin */
- {
- /* set before the switch */
- break;
- }
- case MP_BUS_EISA: /* EISA pin */
- {
- trigger = default_EISA_trigger(idx);
- break;
- }
- case MP_BUS_PCI: /* PCI pin */
- {
- /* set before the switch */
- break;
- }
- case MP_BUS_MCA: /* MCA pin */
- {
- trigger = default_MCA_trigger(idx);
- break;
- }
- default:
- {
- printk(KERN_WARNING "broken BIOS!!\n");
- trigger = 1;
- break;
- }
- }
-#endif
+ switch (mp_bus_id_to_type[bus]) {
+ case MP_BUS_ISA: /* ISA pin */
+ {
+ /* set before the switch */
break;
}
- case 1: /* edge */
+ case MP_BUS_EISA: /* EISA pin */
{
- trigger = 0;
+ trigger = default_EISA_trigger(idx);
break;
}
- case 2: /* reserved */
+ case MP_BUS_PCI: /* PCI pin */
{
- printk(KERN_WARNING "broken BIOS!!\n");
- trigger = 1;
+ /* set before the switch */
break;
}
- case 3: /* level */
+ case MP_BUS_MCA: /* MCA pin */
{
- trigger = 1;
+ trigger = default_MCA_trigger(idx);
break;
}
- default: /* invalid */
+ default:
{
printk(KERN_WARNING "broken BIOS!!\n");
- trigger = 0;
+ trigger = 1;
break;
}
}
if (apic_verbosity == APIC_QUIET)
return;
- printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
+ printk(KERN_DEBUG "number of MP IRQ sources: %d.\n", mp_irq_entries);
for (i = 0; i < nr_ioapics; i++)
printk(KERN_DEBUG "number of IO-APIC #%d registers: %d.\n",
- mp_ioapics[i].mpc_apicid, nr_ioapic_registers[i]);
+ mp_ioapics[i].mp_apicid, nr_ioapic_registers[i]);
/*
* We are a bit conservative about what we expect. We have to
spin_lock_irqsave(&ioapic_lock, flags);
reg_00.raw = io_apic_read(apic, 0);
spin_unlock_irqrestore(&ioapic_lock, flags);
-
+
- old_id = mp_ioapics[apic].mpc_apicid;
+ old_id = mp_ioapics[apic].mp_apicid;
- if (mp_ioapics[apic].mpc_apicid >= get_physical_broadcast()) {
+ if (mp_ioapics[apic].mp_apicid >= get_physical_broadcast()) {
printk(KERN_ERR "BIOS bug, IO-APIC#%d ID is %d in the MPC table!...\n",
- apic, mp_ioapics[apic].mpc_apicid);
+ apic, mp_ioapics[apic].mp_apicid);
printk(KERN_ERR "... fixing up to %d. (tell your hw vendor)\n",
reg_00.bits.ID);
- mp_ioapics[apic].mpc_apicid = reg_00.bits.ID;
+ mp_ioapics[apic].mp_apicid = reg_00.bits.ID;
}
/*
/*
* Read the right value from the MPC table and
* write it into the ID register.
- */
+ */
apic_printk(APIC_VERBOSE, KERN_INFO
"...changing IO-APIC physical APIC ID to %d ...",
- mp_ioapics[apic].mpc_apicid);
+ mp_ioapics[apic].mp_apicid);
- reg_00.bits.ID = mp_ioapics[apic].mpc_apicid;
+ reg_00.bits.ID = mp_ioapics[apic].mp_apicid;
spin_lock_irqsave(&ioapic_lock, flags);
io_apic_write(apic, 0, reg_00.raw);
spin_unlock_irqrestore(&ioapic_lock, flags);
{}
#endif
- /* Overridden in paravirt.c if CONFIG_PARAVIRT */
- void __attribute__((weak)) __init memory_setup(void)
-#ifdef CONFIG_PCI_MMCONFIG
-extern void __cpuinit fam10h_check_enable_mmcfg(void);
-extern void __init check_enable_amd_mmconf_dmi(void);
-#else
-void __cpuinit fam10h_check_enable_mmcfg(void)
--{
- machine_specific_memory_setup();
--}
-
- static void __init parse_setup_data(void)
-void __init check_enable_amd_mmconf_dmi(void)
--{
- struct setup_data *data;
- unsigned long pa_data;
-
- if (boot_params.hdr.version < 0x0209)
- return;
- pa_data = boot_params.hdr.setup_data;
- while (pa_data) {
- data = early_ioremap(pa_data, PAGE_SIZE);
- switch (data->type) {
- default:
- break;
- }
- #ifndef CONFIG_DEBUG_BOOT_PARAMS
- free_early(pa_data, pa_data+sizeof(*data)+data->len);
- #endif
- pa_data = data->next;
- early_iounmap(data, PAGE_SIZE);
- }
--}
-#endif
--
/*
* setup_arch - architecture-specific boot-time initializations
*
*/
static void __init allocate_pgdat(int nid)
{
- if (nid && node_has_online_mem(nid))
+ if (nid && node_has_online_mem(nid) && node_remap_start_vaddr[nid])
NODE_DATA(nid) = (pg_data_t *)node_remap_start_vaddr[nid];
else {
- NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(min_low_pfn));
- min_low_pfn += PFN_UP(sizeof(pg_data_t));
+ unsigned long pgdat_phys;
+ pgdat_phys = find_e820_area(min_low_pfn<<PAGE_SHIFT,
+ (nid ? max_low_pfn:max_pfn_mapped)<<PAGE_SHIFT,
+ sizeof(pg_data_t),
+ PAGE_SIZE);
+ NODE_DATA(nid) = (pg_data_t *)(pfn_to_kaddr(pgdat_phys>>PAGE_SHIFT));
+ reserve_early(pgdat_phys, pgdat_phys + sizeof(pg_data_t),
+ "NODE_DATA");
}
+ printk(KERN_DEBUG "allocate_pgdat: node %d NODE_DATA %08lx\n",
+ nid, (unsigned long)NODE_DATA(nid));
}
-#ifdef CONFIG_DISCONTIGMEM
/*
- * In the discontig memory model, a portion of the kernel virtual area (KVA)
- * is reserved and portions of nodes are mapped using it. This is to allow
- * node-local memory to be allocated for structures that would normally require
- * ZONE_NORMAL. The memory is allocated with alloc_remap() and callers
- * should be prepared to allocate from the bootmem allocator instead. This KVA
- * mechanism is incompatible with SPARSEMEM as it makes assumptions about the
- * layout of memory that are broken if alloc_remap() succeeds for some of the
- * map and fails for others
+ * In the DISCONTIGMEM and SPARSEMEM memory model, a portion of the kernel
+ * virtual address space (KVA) is reserved and portions of nodes are mapped
+ * using it. This is to allow node-local memory to be allocated for
+ * structures that would normally require ZONE_NORMAL. The memory is
+ * allocated with alloc_remap() and callers should be prepared to allocate
+ * from the bootmem allocator instead.
*/
static unsigned long node_remap_start_pfn[MAX_NUMNODES];
static void *node_remap_end_vaddr[MAX_NUMNODES];
printk ("node %d will remap to vaddr %08lx - %08lx\n", nid,
(ulong) node_remap_start_vaddr[nid],
- (ulong) pfn_to_kaddr(highstart_pfn
- + node_remap_offset[nid] + node_remap_size[nid]));
+ (ulong) node_remap_end_vaddr[nid]);
}
-#else
-void *alloc_remap(int nid, unsigned long size)
-{
- return NULL;
-}
-
-static unsigned long calculate_numa_remap_pages(void)
-{
- return 0;
-}
-
-static void init_remap_allocator(int nid)
-{
-}
-
-void __init remap_numa_kva(void)
-{
-}
-#endif /* CONFIG_DISCONTIGMEM */
extern void setup_bootmem_allocator(void);
unsigned long __init setup_memory(void)
max_pfn_mapped = pfn;
}
}
+ update_page_count(PG_LEVEL_2M, pages_2m);
+ update_page_count(PG_LEVEL_4K, pages_4k);
}
- static inline int page_kills_ppro(unsigned long pagenr)
- {
- if (pagenr >= 0x70000 && pagenr <= 0x7003F)
- return 1;
- return 0;
- }
-
/*
* devmem_is_allowed() checks to see if /dev/mem access to a certain address
* is valid. The argument is a physical page number.
#ifdef CONFIG_FLATMEM
BUG_ON(!mem_map);
-#endif
-#ifdef CONFIG_HIGHMEM
- /* check that fixmap and pkmap do not overlap */
- if (PKMAP_BASE + LAST_PKMAP*PAGE_SIZE >= FIXADDR_START) {
- printk(KERN_ERR
- "fixmap and kmap areas overlap - this will crash\n");
- printk(KERN_ERR "pkstart: %lxh pkend: %lxh fixstart %lxh\n",
- PKMAP_BASE, PKMAP_BASE + LAST_PKMAP*PAGE_SIZE,
- FIXADDR_START);
- BUG();
- }
#endif
- bad_ppro = ppro_with_ram_bug();
-
/* this will put all low memory onto the freelists */
totalram_pages += free_all_bootmem();
--- /dev/null
- end = (val & 0xffffff8000000ULL);
+#include <linux/init.h>
+#include <linux/pci.h>
+#include "pci.h"
+
+#ifdef CONFIG_X86_64
+
+#include <asm/pci-direct.h>
+#include <asm/mpspec.h>
+#include <linux/cpumask.h>
+#include <linux/topology.h>
+
+/*
+ * This discovers the pcibus <-> node mapping on AMD K8.
+ * also get peer root bus resource for io,mmio
+ */
+
+
+/*
+ * sub bus (transparent) will use entres from 3 to store extra from root,
+ * so need to make sure have enought slot there, increase PCI_BUS_NUM_RESOURCES?
+ */
+#define RES_NUM 16
+struct pci_root_info {
+ char name[12];
+ unsigned int res_num;
+ struct resource res[RES_NUM];
+ int bus_min;
+ int bus_max;
+ int node;
+ int link;
+};
+
+/* 4 at this time, it may become to 32 */
+#define PCI_ROOT_NR 4
+static int pci_root_num;
+static struct pci_root_info pci_root_info[PCI_ROOT_NR];
+
+#ifdef CONFIG_NUMA
+
+#define BUS_NR 256
+
+static int mp_bus_to_node[BUS_NR];
+
+void set_mp_bus_to_node(int busnum, int node)
+{
+ if (busnum >= 0 && busnum < BUS_NR)
+ mp_bus_to_node[busnum] = node;
+}
+
+int get_mp_bus_to_node(int busnum)
+{
+ int node = -1;
+
+ if (busnum < 0 || busnum > (BUS_NR - 1))
+ return node;
+
+ node = mp_bus_to_node[busnum];
+
+ /*
+ * let numa_node_id to decide it later in dma_alloc_pages
+ * if there is no ram on that node
+ */
+ if (node != -1 && !node_online(node))
+ node = -1;
+
+ return node;
+}
+#endif
+
+void set_pci_bus_resources_arch_default(struct pci_bus *b)
+{
+ int i;
+ int j;
+ struct pci_root_info *info;
+
+ /* if only one root bus, don't need to anything */
+ if (pci_root_num < 2)
+ return;
+
+ for (i = 0; i < pci_root_num; i++) {
+ if (pci_root_info[i].bus_min == b->number)
+ break;
+ }
+
+ if (i == pci_root_num)
+ return;
+
+ info = &pci_root_info[i];
+ for (j = 0; j < info->res_num; j++) {
+ struct resource *res;
+ struct resource *root;
+
+ res = &info->res[j];
+ b->resource[j] = res;
+ if (res->flags & IORESOURCE_IO)
+ root = &ioport_resource;
+ else
+ root = &iomem_resource;
+ insert_resource(root, res);
+ }
+}
+
+#define RANGE_NUM 16
+
+struct res_range {
+ size_t start;
+ size_t end;
+};
+
+static void __init update_range(struct res_range *range, size_t start,
+ size_t end)
+{
+ int i;
+ int j;
+
+ for (j = 0; j < RANGE_NUM; j++) {
+ if (!range[j].end)
+ continue;
+
+ if (start <= range[j].start && end >= range[j].end) {
+ range[j].start = 0;
+ range[j].end = 0;
+ continue;
+ }
+
+ if (start <= range[j].start && end < range[j].end && range[j].start < end + 1) {
+ range[j].start = end + 1;
+ continue;
+ }
+
+
+ if (start > range[j].start && end >= range[j].end && range[j].end > start - 1) {
+ range[j].end = start - 1;
+ continue;
+ }
+
+ if (start > range[j].start && end < range[j].end) {
+ /* find the new spare */
+ for (i = 0; i < RANGE_NUM; i++) {
+ if (range[i].end == 0)
+ break;
+ }
+ if (i < RANGE_NUM) {
+ range[i].end = range[j].end;
+ range[i].start = end + 1;
+ } else {
+ printk(KERN_ERR "run of slot in ranges\n");
+ }
+ range[j].end = start - 1;
+ continue;
+ }
+ }
+}
+
+static void __init update_res(struct pci_root_info *info, size_t start,
+ size_t end, unsigned long flags, int merge)
+{
+ int i;
+ struct resource *res;
+
+ if (!merge)
+ goto addit;
+
+ /* try to merge it with old one */
+ for (i = 0; i < info->res_num; i++) {
+ size_t final_start, final_end;
+ size_t common_start, common_end;
+
+ res = &info->res[i];
+ if (res->flags != flags)
+ continue;
+
+ common_start = max((size_t)res->start, start);
+ common_end = min((size_t)res->end, end);
+ if (common_start > common_end + 1)
+ continue;
+
+ final_start = min((size_t)res->start, start);
+ final_end = max((size_t)res->end, end);
+
+ res->start = final_start;
+ res->end = final_end;
+ return;
+ }
+
+addit:
+
+ /* need to add that */
+ if (info->res_num >= RES_NUM)
+ return;
+
+ res = &info->res[info->res_num];
+ res->name = info->name;
+ res->flags = flags;
+ res->start = start;
+ res->end = end;
+ res->child = NULL;
+ info->res_num++;
+}
+
+struct pci_hostbridge_probe {
+ u32 bus;
+ u32 slot;
+ u32 vendor;
+ u32 device;
+};
+
+static struct pci_hostbridge_probe pci_probes[] __initdata = {
+ { 0, 0x18, PCI_VENDOR_ID_AMD, 0x1100 },
+ { 0, 0x18, PCI_VENDOR_ID_AMD, 0x1200 },
+ { 0xff, 0, PCI_VENDOR_ID_AMD, 0x1200 },
+ { 0, 0x18, PCI_VENDOR_ID_AMD, 0x1300 },
+};
+
+static u64 __initdata fam10h_mmconf_start;
+static u64 __initdata fam10h_mmconf_end;
+static void __init get_pci_mmcfg_amd_fam10h_range(void)
+{
+ u32 address;
+ u64 base, msr;
+ unsigned segn_busn_bits;
+
+ /* assume all cpus from fam10h have mmconf */
+ if (boot_cpu_data.x86 < 0x10)
+ return;
+
+ address = MSR_FAM10H_MMIO_CONF_BASE;
+ rdmsrl(address, msr);
+
+ /* mmconfig is not enable */
+ if (!(msr & FAM10H_MMIO_CONF_ENABLE))
+ return;
+
+ base = msr & (FAM10H_MMIO_CONF_BASE_MASK<<FAM10H_MMIO_CONF_BASE_SHIFT);
+
+ segn_busn_bits = (msr >> FAM10H_MMIO_CONF_BUSRANGE_SHIFT) &
+ FAM10H_MMIO_CONF_BUSRANGE_MASK;
+
+ fam10h_mmconf_start = base;
+ fam10h_mmconf_end = base + (1ULL<<(segn_busn_bits + 20)) - 1;
+}
+
+/**
+ * early_fill_mp_bus_to_node()
+ * called before pcibios_scan_root and pci_scan_bus
+ * fills the mp_bus_to_cpumask array based according to the LDT Bus Number
+ * Registers found in the K8 northbridge
+ */
+static int __init early_fill_mp_bus_info(void)
+{
+ int i;
+ int j;
+ unsigned bus;
+ unsigned slot;
+ int found;
+ int node;
+ int link;
+ int def_node;
+ int def_link;
+ struct pci_root_info *info;
+ u32 reg;
+ struct resource *res;
+ size_t start;
+ size_t end;
+ struct res_range range[RANGE_NUM];
+ u64 val;
+ u32 address;
+
+#ifdef CONFIG_NUMA
+ for (i = 0; i < BUS_NR; i++)
+ mp_bus_to_node[i] = -1;
+#endif
+
+ if (!early_pci_allowed())
+ return -1;
+
+ found = 0;
+ for (i = 0; i < ARRAY_SIZE(pci_probes); i++) {
+ u32 id;
+ u16 device;
+ u16 vendor;
+
+ bus = pci_probes[i].bus;
+ slot = pci_probes[i].slot;
+ id = read_pci_config(bus, slot, 0, PCI_VENDOR_ID);
+
+ vendor = id & 0xffff;
+ device = (id>>16) & 0xffff;
+ if (pci_probes[i].vendor == vendor &&
+ pci_probes[i].device == device) {
+ found = 1;
+ break;
+ }
+ }
+
+ if (!found)
+ return 0;
+
+ pci_root_num = 0;
+ for (i = 0; i < 4; i++) {
+ int min_bus;
+ int max_bus;
+ reg = read_pci_config(bus, slot, 1, 0xe0 + (i << 2));
+
+ /* Check if that register is enabled for bus range */
+ if ((reg & 7) != 3)
+ continue;
+
+ min_bus = (reg >> 16) & 0xff;
+ max_bus = (reg >> 24) & 0xff;
+ node = (reg >> 4) & 0x07;
+#ifdef CONFIG_NUMA
+ for (j = min_bus; j <= max_bus; j++)
+ mp_bus_to_node[j] = (unsigned char) node;
+#endif
+ link = (reg >> 8) & 0x03;
+
+ info = &pci_root_info[pci_root_num];
+ info->bus_min = min_bus;
+ info->bus_max = max_bus;
+ info->node = node;
+ info->link = link;
+ sprintf(info->name, "PCI Bus #%02x", min_bus);
+ pci_root_num++;
+ }
+
+ /* get the default node and link for left over res */
+ reg = read_pci_config(bus, slot, 0, 0x60);
+ def_node = (reg >> 8) & 0x07;
+ reg = read_pci_config(bus, slot, 0, 0x64);
+ def_link = (reg >> 8) & 0x03;
+
+ memset(range, 0, sizeof(range));
+ range[0].end = 0xffff;
+ /* io port resource */
+ for (i = 0; i < 4; i++) {
+ reg = read_pci_config(bus, slot, 1, 0xc0 + (i << 3));
+ if (!(reg & 3))
+ continue;
+
+ start = reg & 0xfff000;
+ reg = read_pci_config(bus, slot, 1, 0xc4 + (i << 3));
+ node = reg & 0x07;
+ link = (reg >> 4) & 0x03;
+ end = (reg & 0xfff000) | 0xfff;
+
+ /* find the position */
+ for (j = 0; j < pci_root_num; j++) {
+ info = &pci_root_info[j];
+ if (info->node == node && info->link == link)
+ break;
+ }
+ if (j == pci_root_num)
+ continue; /* not found */
+
+ info = &pci_root_info[j];
+ printk(KERN_DEBUG "node %d link %d: io port [%llx, %llx]\n",
+ node, link, (u64)start, (u64)end);
+
+ /* kernel only handle 16 bit only */
+ if (end > 0xffff)
+ end = 0xffff;
+ update_res(info, start, end, IORESOURCE_IO, 1);
+ update_range(range, start, end);
+ }
+ /* add left over io port range to def node/link, [0, 0xffff] */
+ /* find the position */
+ for (j = 0; j < pci_root_num; j++) {
+ info = &pci_root_info[j];
+ if (info->node == def_node && info->link == def_link)
+ break;
+ }
+ if (j < pci_root_num) {
+ info = &pci_root_info[j];
+ for (i = 0; i < RANGE_NUM; i++) {
+ if (!range[i].end)
+ continue;
+
+ update_res(info, range[i].start, range[i].end,
+ IORESOURCE_IO, 1);
+ }
+ }
+
+ memset(range, 0, sizeof(range));
+ /* 0xfd00000000-0xffffffffff for HT */
+ range[0].end = (0xfdULL<<32) - 1;
+
+ /* need to take out [0, TOM) for RAM*/
+ address = MSR_K8_TOP_MEM1;
+ rdmsrl(address, val);
- end = (val & 0xffffff8000000ULL);
++ end = (val & 0xffffff800000ULL);
+ printk(KERN_INFO "TOM: %016lx aka %ldM\n", end, end>>20);
+ if (end < (1ULL<<32))
+ update_range(range, 0, end - 1);
+
+ /* get mmconfig */
+ get_pci_mmcfg_amd_fam10h_range();
+ /* need to take out mmconf range */
+ if (fam10h_mmconf_end) {
+ printk(KERN_DEBUG "Fam 10h mmconf [%llx, %llx]\n", fam10h_mmconf_start, fam10h_mmconf_end);
+ update_range(range, fam10h_mmconf_start, fam10h_mmconf_end);
+ }
+
+ /* mmio resource */
+ for (i = 0; i < 8; i++) {
+ reg = read_pci_config(bus, slot, 1, 0x80 + (i << 3));
+ if (!(reg & 3))
+ continue;
+
+ start = reg & 0xffffff00; /* 39:16 on 31:8*/
+ start <<= 8;
+ reg = read_pci_config(bus, slot, 1, 0x84 + (i << 3));
+ node = reg & 0x07;
+ link = (reg >> 4) & 0x03;
+ end = (reg & 0xffffff00);
+ end <<= 8;
+ end |= 0xffff;
+
+ /* find the position */
+ for (j = 0; j < pci_root_num; j++) {
+ info = &pci_root_info[j];
+ if (info->node == node && info->link == link)
+ break;
+ }
+ if (j == pci_root_num)
+ continue; /* not found */
+
+ info = &pci_root_info[j];
+
+ printk(KERN_DEBUG "node %d link %d: mmio [%llx, %llx]",
+ node, link, (u64)start, (u64)end);
+ /*
+ * some sick allocation would have range overlap with fam10h
+ * mmconf range, so need to update start and end.
+ */
+ if (fam10h_mmconf_end) {
+ int changed = 0;
+ u64 endx = 0;
+ if (start >= fam10h_mmconf_start &&
+ start <= fam10h_mmconf_end) {
+ start = fam10h_mmconf_end + 1;
+ changed = 1;
+ }
+
+ if (end >= fam10h_mmconf_start &&
+ end <= fam10h_mmconf_end) {
+ end = fam10h_mmconf_start - 1;
+ changed = 1;
+ }
+
+ if (start < fam10h_mmconf_start &&
+ end > fam10h_mmconf_end) {
+ /* we got a hole */
+ endx = fam10h_mmconf_start - 1;
+ update_res(info, start, endx, IORESOURCE_MEM, 0);
+ update_range(range, start, endx);
+ printk(KERN_CONT " ==> [%llx, %llx]", (u64)start, endx);
+ start = fam10h_mmconf_end + 1;
+ changed = 1;
+ }
+ if (changed) {
+ if (start <= end) {
+ printk(KERN_CONT " %s [%llx, %llx]", endx?"and":"==>", (u64)start, (u64)end);
+ } else {
+ printk(KERN_CONT "%s\n", endx?"":" ==> none");
+ continue;
+ }
+ }
+ }
+
+ update_res(info, start, end, IORESOURCE_MEM, 1);
+ update_range(range, start, end);
+ printk(KERN_CONT "\n");
+ }
+
+ /* need to take out [4G, TOM2) for RAM*/
+ /* SYS_CFG */
+ address = MSR_K8_SYSCFG;
+ rdmsrl(address, val);
+ /* TOP_MEM2 is enabled? */
+ if (val & (1<<21)) {
+ /* TOP_MEM2 */
+ address = MSR_K8_TOP_MEM2;
+ rdmsrl(address, val);
++ end = (val & 0xffffff800000ULL);
+ printk(KERN_INFO "TOM2: %016lx aka %ldM\n", end, end>>20);
+ update_range(range, 1ULL<<32, end - 1);
+ }
+
+ /*
+ * add left over mmio range to def node/link ?
+ * that is tricky, just record range in from start_min to 4G
+ */
+ for (j = 0; j < pci_root_num; j++) {
+ info = &pci_root_info[j];
+ if (info->node == def_node && info->link == def_link)
+ break;
+ }
+ if (j < pci_root_num) {
+ info = &pci_root_info[j];
+
+ for (i = 0; i < RANGE_NUM; i++) {
+ if (!range[i].end)
+ continue;
+
+ update_res(info, range[i].start, range[i].end,
+ IORESOURCE_MEM, 1);
+ }
+ }
+
+ for (i = 0; i < pci_root_num; i++) {
+ int res_num;
+ int busnum;
+
+ info = &pci_root_info[i];
+ res_num = info->res_num;
+ busnum = info->bus_min;
+ printk(KERN_DEBUG "bus: [%02x,%02x] on node %x link %x\n",
+ info->bus_min, info->bus_max, info->node, info->link);
+ for (j = 0; j < res_num; j++) {
+ res = &info->res[j];
+ printk(KERN_DEBUG "bus: %02x index %x %s: [%llx, %llx]\n",
+ busnum, j,
+ (res->flags & IORESOURCE_IO)?"io port":"mmio",
+ res->start, res->end);
+ }
+ }
+
+ return 0;
+}
+
+postcore_initcall(early_fill_mp_bus_info);
+
+#endif
+
+/* common 32/64 bit code */
+
+#define ENABLE_CF8_EXT_CFG (1ULL << 46)
+
+static void enable_pci_io_ecs_per_cpu(void *unused)
+{
+ u64 reg;
+ rdmsrl(MSR_AMD64_NB_CFG, reg);
+ if (!(reg & ENABLE_CF8_EXT_CFG)) {
+ reg |= ENABLE_CF8_EXT_CFG;
+ wrmsrl(MSR_AMD64_NB_CFG, reg);
+ }
+}
+
+static int __init enable_pci_io_ecs(void)
+{
+ /* assume all cpus from fam10h have IO ECS */
+ if (boot_cpu_data.x86 < 0x10)
+ return 0;
+ on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1, 1);
+ pci_probe |= PCI_HAS_IO_ECS;
+ return 0;
+}
+
+postcore_initcall(enable_pci_io_ecs);
? __pa(xen_start_info->mod_start) : 0;
boot_params.hdr.ramdisk_size = xen_start_info->mod_len;
- if (!is_initial_xendomain())
+ if (!is_initial_xendomain()) {
+ add_preferred_console("xenboot", 0, NULL);
+ add_preferred_console("tty", 0, NULL);
add_preferred_console("hvc", 0, NULL);
+ }
/* Start the world */
- start_kernel();
+ i386_start_kernel();
}
{
unsigned long max_pfn = xen_start_info->nr_pages;
+ max_pfn = min(MAX_DOMAIN_PAGES, max_pfn);
+
e820.nr_map = 0;
- add_memory_region(0, LOWMEMSIZE(), E820_RAM);
- add_memory_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
+ e820_add_region(0, LOWMEMSIZE(), E820_RAM);
+ e820_add_region(HIGH_MEMORY, PFN_PHYS(max_pfn)-HIGH_MEMORY, E820_RAM);
return "Xen";
}
projects / linux-block.git / commitdiff