[GIT pull] x86 updates for 2.6.38
From: Thomas Gleixner
Date: Tue Jan 11 2011 - 08:50:24 EST
Linus,
Please pull the latest x86-urgent-for-linus git tree from:
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip.git x86-urgent-for-linus
out-of-topic modifications in x86-urgent-for-linus:
---------------------------------------------------
include/linux/pci_ids.h # ca86828: x86, AMD, PCI: Add AMD northbridg
Thanks,
tglx
------------------>
Alek Du (1):
x86/gpio: Implement x86 gpio_to_irq convert function
Arjan van de Ven (1):
x86: Fix Moorestown VRTC fixmap placement
David Rientjes (6):
x86, numa: Reduce minimum fake node size to 32M
x86, numa: Avoid compiling NUMA emulation functions without CONFIG_NUMA_EMU
x86, numa: Fake apicid and pxm mappings for NUMA emulation
x86, numa: Fake node-to-cpumask for NUMA emulation
x86, numa: Fix cpu to node mapping for sparse node ids
x86, numa: Fix CONFIG_DEBUG_PER_CPU_MAPS without NUMA emulation
Jack Steiner (1):
x86, UV: Fix APICID shift for Westmere processors
Jan Beulich (1):
x86: Use PCI method for enabling AMD extended config space before MSR method
Pierre Tardy (1):
x86, lapic-timer: Increase the max_delta to 31 bits
Randy Dunlap (1):
x86: Fix sparse non-ANSI function warnings in smpboot.c
Robert Richter (1):
x86, AMD, PCI: Add AMD northbridge PCI device id for CPU families 12h and 14h
Thomas Gleixner (1):
x86: tsc: Prevent delayed init if initial tsc calibration failed
arch/x86/include/asm/acpi.h | 11 +--
arch/x86/include/asm/amd_nb.h | 13 +++-
arch/x86/include/asm/fixmap.h | 4 +-
arch/x86/include/asm/gpio.h | 5 +-
arch/x86/include/asm/numa_64.h | 2 +-
arch/x86/kernel/amd_nb.c | 7 ++
arch/x86/kernel/aperture_64.c | 44 ++++-------
arch/x86/kernel/apic/apic.c | 2 +-
arch/x86/kernel/apic/x2apic_uv_x.c | 2 +-
arch/x86/kernel/smpboot.c | 4 +-
arch/x86/kernel/tsc.c | 2 +-
arch/x86/mm/amdtopology_64.c | 86 ++++++++++++++++---
arch/x86/mm/numa_64.c | 157 ++++++++++++++++++++++++++++--------
arch/x86/mm/srat_64.c | 26 ++++--
arch/x86/pci/amd_bus.c | 33 ++++++++
include/linux/pci_ids.h | 1 +
16 files changed, 297 insertions(+), 102 deletions(-)
diff --git a/arch/x86/include/asm/acpi.h b/arch/x86/include/asm/acpi.h
index 55d106b..211ca3f 100644
--- a/arch/x86/include/asm/acpi.h
+++ b/arch/x86/include/asm/acpi.h
@@ -185,17 +185,16 @@ struct bootnode;
#ifdef CONFIG_ACPI_NUMA
extern int acpi_numa;
-extern int acpi_get_nodes(struct bootnode *physnodes);
+extern void acpi_get_nodes(struct bootnode *physnodes, unsigned long start,
+ unsigned long end);
extern int acpi_scan_nodes(unsigned long start, unsigned long end);
#define NR_NODE_MEMBLKS (MAX_NUMNODES*2)
+
+#ifdef CONFIG_NUMA_EMU
extern void acpi_fake_nodes(const struct bootnode *fake_nodes,
int num_nodes);
-#else
-static inline void acpi_fake_nodes(const struct bootnode *fake_nodes,
- int num_nodes)
-{
-}
#endif
+#endif /* CONFIG_ACPI_NUMA */
#define acpi_unlazy_tlb(x) leave_mm(x)
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 6aee50d..64dc82e 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -3,16 +3,27 @@
#include <linux/pci.h>
+struct amd_nb_bus_dev_range {
+ u8 bus;
+ u8 dev_base;
+ u8 dev_limit;
+};
+
extern struct pci_device_id amd_nb_misc_ids[];
+extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[];
struct bootnode;
extern int early_is_amd_nb(u32 value);
extern int amd_cache_northbridges(void);
extern void amd_flush_garts(void);
-extern int amd_get_nodes(struct bootnode *nodes);
extern int amd_numa_init(unsigned long start_pfn, unsigned long end_pfn);
extern int amd_scan_nodes(void);
+#ifdef CONFIG_NUMA_EMU
+extern void amd_fake_nodes(const struct bootnode *nodes, int nr_nodes);
+extern void amd_get_nodes(struct bootnode *nodes);
+#endif
+
struct amd_northbridge {
struct pci_dev *misc;
};
diff --git a/arch/x86/include/asm/fixmap.h b/arch/x86/include/asm/fixmap.h
index 0141b23..4729b2b 100644
--- a/arch/x86/include/asm/fixmap.h
+++ b/arch/x86/include/asm/fixmap.h
@@ -116,11 +116,11 @@ enum fixed_addresses {
#endif
FIX_TEXT_POKE1, /* reserve 2 pages for text_poke() */
FIX_TEXT_POKE0, /* first page is last, because allocation is backward */
- __end_of_permanent_fixed_addresses,
-
#ifdef CONFIG_X86_MRST
FIX_LNW_VRTC,
#endif
+ __end_of_permanent_fixed_addresses,
+
/*
* 256 temporary boot-time mappings, used by early_ioremap(),
* before ioremap() is functional.
diff --git a/arch/x86/include/asm/gpio.h b/arch/x86/include/asm/gpio.h
index 49dbfdf..91d915a 100644
--- a/arch/x86/include/asm/gpio.h
+++ b/arch/x86/include/asm/gpio.h
@@ -38,12 +38,9 @@ static inline int gpio_cansleep(unsigned int gpio)
return __gpio_cansleep(gpio);
}
-/*
- * Not implemented, yet.
- */
static inline int gpio_to_irq(unsigned int gpio)
{
- return -ENOSYS;
+ return __gpio_to_irq(gpio);
}
static inline int irq_to_gpio(unsigned int irq)
diff --git a/arch/x86/include/asm/numa_64.h b/arch/x86/include/asm/numa_64.h
index 823e070..5ae8728 100644
--- a/arch/x86/include/asm/numa_64.h
+++ b/arch/x86/include/asm/numa_64.h
@@ -38,7 +38,7 @@ extern void __cpuinit numa_add_cpu(int cpu);
extern void __cpuinit numa_remove_cpu(int cpu);
#ifdef CONFIG_NUMA_EMU
-#define FAKE_NODE_MIN_SIZE ((u64)64 << 20)
+#define FAKE_NODE_MIN_SIZE ((u64)32 << 20)
#define FAKE_NODE_MIN_HASH_MASK (~(FAKE_NODE_MIN_SIZE - 1UL))
#endif /* CONFIG_NUMA_EMU */
#else
diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c
index affacb5..0a99f71 100644
--- a/arch/x86/kernel/amd_nb.c
+++ b/arch/x86/kernel/amd_nb.c
@@ -20,6 +20,13 @@ struct pci_device_id amd_nb_misc_ids[] = {
};
EXPORT_SYMBOL(amd_nb_misc_ids);
+const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[] __initconst = {
+ { 0x00, 0x18, 0x20 },
+ { 0xff, 0x00, 0x20 },
+ { 0xfe, 0x00, 0x20 },
+ { }
+};
+
struct amd_northbridge_info amd_northbridges;
EXPORT_SYMBOL(amd_northbridges);
diff --git a/arch/x86/kernel/aperture_64.c b/arch/x86/kernel/aperture_64.c
index dcd7c83..5955a78 100644
--- a/arch/x86/kernel/aperture_64.c
+++ b/arch/x86/kernel/aperture_64.c
@@ -39,18 +39,6 @@ int fallback_aper_force __initdata;
int fix_aperture __initdata = 1;
-struct bus_dev_range {
- int bus;
- int dev_base;
- int dev_limit;
-};
-
-static struct bus_dev_range bus_dev_ranges[] __initdata = {
- { 0x00, 0x18, 0x20},
- { 0xff, 0x00, 0x20},
- { 0xfe, 0x00, 0x20}
-};
-
static struct resource gart_resource = {
.name = "GART",
.flags = IORESOURCE_MEM,
@@ -294,13 +282,13 @@ void __init early_gart_iommu_check(void)
search_agp_bridge(&agp_aper_order, &valid_agp);
fix = 0;
- for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+ for (i = 0; amd_nb_bus_dev_ranges[i].dev_limit; 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;
+ bus = amd_nb_bus_dev_ranges[i].bus;
+ dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+ dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
for (slot = dev_base; slot < dev_limit; slot++) {
if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -349,13 +337,13 @@ void __init early_gart_iommu_check(void)
return;
/* disable them all at first */
- for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+ for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; 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;
+ bus = amd_nb_bus_dev_ranges[i].bus;
+ dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+ dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
for (slot = dev_base; slot < dev_limit; slot++) {
if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -390,14 +378,14 @@ int __init gart_iommu_hole_init(void)
fix = 0;
node = 0;
- for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+ for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) {
int bus;
int dev_base, dev_limit;
u32 ctl;
- bus = bus_dev_ranges[i].bus;
- dev_base = bus_dev_ranges[i].dev_base;
- dev_limit = bus_dev_ranges[i].dev_limit;
+ bus = amd_nb_bus_dev_ranges[i].bus;
+ dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+ dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
for (slot = dev_base; slot < dev_limit; slot++) {
if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
@@ -505,7 +493,7 @@ out:
}
/* Fix up the north bridges */
- for (i = 0; i < ARRAY_SIZE(bus_dev_ranges); i++) {
+ for (i = 0; i < amd_nb_bus_dev_ranges[i].dev_limit; i++) {
int bus, dev_base, dev_limit;
/*
@@ -514,9 +502,9 @@ out:
*/
u32 ctl = DISTLBWALKPRB | aper_order << 1;
- bus = bus_dev_ranges[i].bus;
- dev_base = bus_dev_ranges[i].dev_base;
- dev_limit = bus_dev_ranges[i].dev_limit;
+ bus = amd_nb_bus_dev_ranges[i].bus;
+ dev_base = amd_nb_bus_dev_ranges[i].dev_base;
+ dev_limit = amd_nb_bus_dev_ranges[i].dev_limit;
for (slot = dev_base; slot < dev_limit; slot++) {
if (!early_is_amd_nb(read_pci_config(bus, slot, 3, 0x00)))
continue;
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index ce65d44..1efd378 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -684,7 +684,7 @@ static int __init calibrate_APIC_clock(void)
lapic_clockevent.mult = div_sc(delta, TICK_NSEC * LAPIC_CAL_LOOPS,
lapic_clockevent.shift);
lapic_clockevent.max_delta_ns =
- clockevent_delta2ns(0x7FFFFF, &lapic_clockevent);
+ clockevent_delta2ns(0x7FFFFFFF, &lapic_clockevent);
lapic_clockevent.min_delta_ns =
clockevent_delta2ns(0xF, &lapic_clockevent);
diff --git a/arch/x86/kernel/apic/x2apic_uv_x.c b/arch/x86/kernel/apic/x2apic_uv_x.c
index 2a3f2a7..f4f9e95 100644
--- a/arch/x86/kernel/apic/x2apic_uv_x.c
+++ b/arch/x86/kernel/apic/x2apic_uv_x.c
@@ -378,7 +378,7 @@ struct apic __refdata apic_x2apic_uv_x = {
static __cpuinit void set_x2apic_extra_bits(int pnode)
{
- __get_cpu_var(x2apic_extra_bits) = (pnode << 6);
+ __get_cpu_var(x2apic_extra_bits) = (pnode << uvh_apicid.s.pnode_shift);
}
/*
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index ee886fe..5fdc095 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -97,12 +97,12 @@ static DEFINE_PER_CPU(struct task_struct *, idle_thread_array);
*/
static DEFINE_MUTEX(x86_cpu_hotplug_driver_mutex);
-void cpu_hotplug_driver_lock()
+void cpu_hotplug_driver_lock(void)
{
mutex_lock(&x86_cpu_hotplug_driver_mutex);
}
-void cpu_hotplug_driver_unlock()
+void cpu_hotplug_driver_unlock(void)
{
mutex_unlock(&x86_cpu_hotplug_driver_mutex);
}
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 356a0d4..463901e 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -965,7 +965,7 @@ out:
static int __init init_tsc_clocksource(void)
{
- if (!cpu_has_tsc || tsc_disabled > 0)
+ if (!cpu_has_tsc || tsc_disabled > 0 || !tsc_khz)
return 0;
if (tsc_clocksource_reliable)
diff --git a/arch/x86/mm/amdtopology_64.c b/arch/x86/mm/amdtopology_64.c
index 08a0069..f21962c 100644
--- a/arch/x86/mm/amdtopology_64.c
+++ b/arch/x86/mm/amdtopology_64.c
@@ -27,6 +27,7 @@
#include <asm/amd_nb.h>
static struct bootnode __initdata nodes[8];
+static unsigned char __initdata nodeids[8];
static nodemask_t __initdata nodes_parsed = NODE_MASK_NONE;
static __init int find_northbridge(void)
@@ -68,19 +69,6 @@ static __init void early_get_boot_cpu_id(void)
#endif
}
-int __init amd_get_nodes(struct bootnode *physnodes)
-{
- int i;
- int ret = 0;
-
- for_each_node_mask(i, nodes_parsed) {
- physnodes[ret].start = nodes[i].start;
- physnodes[ret].end = nodes[i].end;
- ret++;
- }
- return ret;
-}
-
int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
{
unsigned long start = PFN_PHYS(start_pfn);
@@ -113,7 +101,7 @@ int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
base = read_pci_config(0, nb, 1, 0x40 + i*8);
limit = read_pci_config(0, nb, 1, 0x44 + i*8);
- nodeid = limit & 7;
+ nodeids[i] = nodeid = limit & 7;
if ((base & 3) == 0) {
if (i < numnodes)
pr_info("Skipping disabled node %d\n", i);
@@ -193,6 +181,76 @@ int __init amd_numa_init(unsigned long start_pfn, unsigned long end_pfn)
return 0;
}
+#ifdef CONFIG_NUMA_EMU
+static s16 fake_apicid_to_node[MAX_LOCAL_APIC] __initdata = {
+ [0 ... MAX_LOCAL_APIC-1] = NUMA_NO_NODE
+};
+
+void __init amd_get_nodes(struct bootnode *physnodes)
+{
+ int i;
+
+ for_each_node_mask(i, nodes_parsed) {
+ physnodes[i].start = nodes[i].start;
+ physnodes[i].end = nodes[i].end;
+ }
+}
+
+static int __init find_node_by_addr(unsigned long addr)
+{
+ int ret = NUMA_NO_NODE;
+ int i;
+
+ for (i = 0; i < 8; i++)
+ if (addr >= nodes[i].start && addr < nodes[i].end) {
+ ret = i;
+ break;
+ }
+ return ret;
+}
+
+/*
+ * For NUMA emulation, fake proximity domain (_PXM) to node id mappings must be
+ * setup to represent the physical topology but reflect the emulated
+ * environment. For each emulated node, the real node which it appears on is
+ * found and a fake pxm to nid mapping is created which mirrors the actual
+ * locality. node_distance() then represents the correct distances between
+ * emulated nodes by using the fake acpi mappings to pxms.
+ */
+void __init amd_fake_nodes(const struct bootnode *nodes, int nr_nodes)
+{
+ unsigned int bits;
+ unsigned int cores;
+ unsigned int apicid_base = 0;
+ int i;
+
+ bits = boot_cpu_data.x86_coreid_bits;
+ cores = 1 << bits;
+ early_get_boot_cpu_id();
+ if (boot_cpu_physical_apicid > 0)
+ apicid_base = boot_cpu_physical_apicid;
+
+ for (i = 0; i < nr_nodes; i++) {
+ int index;
+ int nid;
+ int j;
+
+ nid = find_node_by_addr(nodes[i].start);
+ if (nid == NUMA_NO_NODE)
+ continue;
+
+ index = nodeids[nid] << bits;
+ if (fake_apicid_to_node[index + apicid_base] == NUMA_NO_NODE)
+ for (j = apicid_base; j < cores + apicid_base; j++)
+ fake_apicid_to_node[index + j] = i;
+#ifdef CONFIG_ACPI_NUMA
+ __acpi_map_pxm_to_node(nid, i);
+#endif
+ }
+ memcpy(apicid_to_node, fake_apicid_to_node, sizeof(apicid_to_node));
+}
+#endif /* CONFIG_NUMA_EMU */
+
int __init amd_scan_nodes(void)
{
unsigned int bits;
diff --git a/arch/x86/mm/numa_64.c b/arch/x86/mm/numa_64.c
index 7762a51..1e72102 100644
--- a/arch/x86/mm/numa_64.c
+++ b/arch/x86/mm/numa_64.c
@@ -260,30 +260,30 @@ void __init numa_init_array(void)
#ifdef CONFIG_NUMA_EMU
/* Numa emulation */
static struct bootnode nodes[MAX_NUMNODES] __initdata;
-static struct bootnode physnodes[MAX_NUMNODES] __initdata;
+static struct bootnode physnodes[MAX_NUMNODES] __cpuinitdata;
static char *cmdline __initdata;
static int __init setup_physnodes(unsigned long start, unsigned long end,
int acpi, int amd)
{
- int nr_nodes = 0;
int ret = 0;
int i;
+ memset(physnodes, 0, sizeof(physnodes));
#ifdef CONFIG_ACPI_NUMA
if (acpi)
- nr_nodes = acpi_get_nodes(physnodes);
+ acpi_get_nodes(physnodes, start, end);
#endif
#ifdef CONFIG_AMD_NUMA
if (amd)
- nr_nodes = amd_get_nodes(physnodes);
+ amd_get_nodes(physnodes);
#endif
/*
* Basic sanity checking on the physical node map: there may be errors
* if the SRAT or AMD code incorrectly reported the topology or the mem=
* kernel parameter is used.
*/
- for (i = 0; i < nr_nodes; i++) {
+ for (i = 0; i < MAX_NUMNODES; i++) {
if (physnodes[i].start == physnodes[i].end)
continue;
if (physnodes[i].start > end) {
@@ -298,17 +298,6 @@ static int __init setup_physnodes(unsigned long start, unsigned long end,
physnodes[i].start = start;
if (physnodes[i].end > end)
physnodes[i].end = end;
- }
-
- /*
- * Remove all nodes that have no memory or were truncated because of the
- * limited address range.
- */
- for (i = 0; i < nr_nodes; i++) {
- if (physnodes[i].start == physnodes[i].end)
- continue;
- physnodes[ret].start = physnodes[i].start;
- physnodes[ret].end = physnodes[i].end;
ret++;
}
@@ -324,6 +313,24 @@ static int __init setup_physnodes(unsigned long start, unsigned long end,
return ret;
}
+static void __init fake_physnodes(int acpi, int amd, int nr_nodes)
+{
+ int i;
+
+ BUG_ON(acpi && amd);
+#ifdef CONFIG_ACPI_NUMA
+ if (acpi)
+ acpi_fake_nodes(nodes, nr_nodes);
+#endif
+#ifdef CONFIG_AMD_NUMA
+ if (amd)
+ amd_fake_nodes(nodes, nr_nodes);
+#endif
+ if (!acpi && !amd)
+ for (i = 0; i < nr_cpu_ids; i++)
+ numa_set_node(i, 0);
+}
+
/*
* Setups up nid to range from addr to addr + size. If the end
* boundary is greater than max_addr, then max_addr is used instead.
@@ -352,8 +359,7 @@ static int __init setup_node_range(int nid, u64 *addr, u64 size, u64 max_addr)
* Sets up nr_nodes fake nodes interleaved over physical nodes ranging from addr
* to max_addr. The return value is the number of nodes allocated.
*/
-static int __init split_nodes_interleave(u64 addr, u64 max_addr,
- int nr_phys_nodes, int nr_nodes)
+static int __init split_nodes_interleave(u64 addr, u64 max_addr, int nr_nodes)
{
nodemask_t physnode_mask = NODE_MASK_NONE;
u64 size;
@@ -384,7 +390,7 @@ static int __init split_nodes_interleave(u64 addr, u64 max_addr,
return -1;
}
- for (i = 0; i < nr_phys_nodes; i++)
+ for (i = 0; i < MAX_NUMNODES; i++)
if (physnodes[i].start != physnodes[i].end)
node_set(i, physnode_mask);
@@ -553,11 +559,9 @@ static int __init numa_emulation(unsigned long start_pfn,
{
u64 addr = start_pfn << PAGE_SHIFT;
u64 max_addr = last_pfn << PAGE_SHIFT;
- int num_phys_nodes;
int num_nodes;
int i;
- num_phys_nodes = setup_physnodes(addr, max_addr, acpi, amd);
/*
* If the numa=fake command-line contains a 'M' or 'G', it represents
* the fixed node size. Otherwise, if it is just a single number N,
@@ -572,7 +576,7 @@ static int __init numa_emulation(unsigned long start_pfn,
unsigned long n;
n = simple_strtoul(cmdline, NULL, 0);
- num_nodes = split_nodes_interleave(addr, max_addr, num_phys_nodes, n);
+ num_nodes = split_nodes_interleave(addr, max_addr, n);
}
if (num_nodes < 0)
@@ -595,7 +599,8 @@ static int __init numa_emulation(unsigned long start_pfn,
nodes[i].end >> PAGE_SHIFT);
setup_node_bootmem(i, nodes[i].start, nodes[i].end);
}
- acpi_fake_nodes(nodes, num_nodes);
+ setup_physnodes(addr, max_addr, acpi, amd);
+ fake_physnodes(acpi, amd, num_nodes);
numa_init_array();
return 0;
}
@@ -610,8 +615,12 @@ void __init initmem_init(unsigned long start_pfn, unsigned long last_pfn,
nodes_clear(node_online_map);
#ifdef CONFIG_NUMA_EMU
+ setup_physnodes(start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT,
+ acpi, amd);
if (cmdline && !numa_emulation(start_pfn, last_pfn, acpi, amd))
return;
+ setup_physnodes(start_pfn << PAGE_SHIFT, last_pfn << PAGE_SHIFT,
+ acpi, amd);
nodes_clear(node_possible_map);
nodes_clear(node_online_map);
#endif
@@ -767,6 +776,7 @@ void __cpuinit numa_clear_node(int cpu)
#ifndef CONFIG_DEBUG_PER_CPU_MAPS
+#ifndef CONFIG_NUMA_EMU
void __cpuinit numa_add_cpu(int cpu)
{
cpumask_set_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
@@ -776,34 +786,115 @@ void __cpuinit numa_remove_cpu(int cpu)
{
cpumask_clear_cpu(cpu, node_to_cpumask_map[early_cpu_to_node(cpu)]);
}
+#else
+void __cpuinit numa_add_cpu(int cpu)
+{
+ unsigned long addr;
+ u16 apicid;
+ int physnid;
+ int nid = NUMA_NO_NODE;
+
+ apicid = early_per_cpu(x86_cpu_to_apicid, cpu);
+ if (apicid != BAD_APICID)
+ nid = apicid_to_node[apicid];
+ if (nid == NUMA_NO_NODE)
+ nid = early_cpu_to_node(cpu);
+ BUG_ON(nid == NUMA_NO_NODE || !node_online(nid));
+
+ /*
+ * Use the starting address of the emulated node to find which physical
+ * node it is allocated on.
+ */
+ addr = node_start_pfn(nid) << PAGE_SHIFT;
+ for (physnid = 0; physnid < MAX_NUMNODES; physnid++)
+ if (addr >= physnodes[physnid].start &&
+ addr < physnodes[physnid].end)
+ break;
+
+ /*
+ * Map the cpu to each emulated node that is allocated on the physical
+ * node of the cpu's apic id.
+ */
+ for_each_online_node(nid) {
+ addr = node_start_pfn(nid) << PAGE_SHIFT;
+ if (addr >= physnodes[physnid].start &&
+ addr < physnodes[physnid].end)
+ cpumask_set_cpu(cpu, node_to_cpumask_map[nid]);
+ }
+}
+
+void __cpuinit numa_remove_cpu(int cpu)
+{
+ int i;
+
+ for_each_online_node(i)
+ cpumask_clear_cpu(cpu, node_to_cpumask_map[i]);
+}
+#endif /* !CONFIG_NUMA_EMU */
#else /* CONFIG_DEBUG_PER_CPU_MAPS */
+static struct cpumask __cpuinit *debug_cpumask_set_cpu(int cpu, int enable)
+{
+ int node = early_cpu_to_node(cpu);
+ struct cpumask *mask;
+ char buf[64];
+
+ mask = node_to_cpumask_map[node];
+ if (!mask) {
+ pr_err("node_to_cpumask_map[%i] NULL\n", node);
+ dump_stack();
+ return NULL;
+ }
+
+ cpulist_scnprintf(buf, sizeof(buf), mask);
+ printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",
+ enable ? "numa_add_cpu" : "numa_remove_cpu",
+ cpu, node, buf);
+ return mask;
+}
/*
* --------- debug versions of the numa functions ---------
*/
+#ifndef CONFIG_NUMA_EMU
static void __cpuinit numa_set_cpumask(int cpu, int enable)
{
- int node = early_cpu_to_node(cpu);
struct cpumask *mask;
- char buf[64];
- mask = node_to_cpumask_map[node];
- if (mask == NULL) {
- printk(KERN_ERR "node_to_cpumask_map[%i] NULL\n", node);
- dump_stack();
+ mask = debug_cpumask_set_cpu(cpu, enable);
+ if (!mask)
return;
- }
if (enable)
cpumask_set_cpu(cpu, mask);
else
cpumask_clear_cpu(cpu, mask);
+}
+#else
+static void __cpuinit numa_set_cpumask(int cpu, int enable)
+{
+ int node = early_cpu_to_node(cpu);
+ struct cpumask *mask;
+ int i;
- cpulist_scnprintf(buf, sizeof(buf), mask);
- printk(KERN_DEBUG "%s cpu %d node %d: mask now %s\n",
- enable ? "numa_add_cpu" : "numa_remove_cpu", cpu, node, buf);
+ for_each_online_node(i) {
+ unsigned long addr;
+
+ addr = node_start_pfn(i) << PAGE_SHIFT;
+ if (addr < physnodes[node].start ||
+ addr >= physnodes[node].end)
+ continue;
+ mask = debug_cpumask_set_cpu(cpu, enable);
+ if (!mask)
+ return;
+
+ if (enable)
+ cpumask_set_cpu(cpu, mask);
+ else
+ cpumask_clear_cpu(cpu, mask);
+ }
}
+#endif /* CONFIG_NUMA_EMU */
void __cpuinit numa_add_cpu(int cpu)
{
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 171a0aa..603d285 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -349,18 +349,19 @@ static int __init nodes_cover_memory(const struct bootnode *nodes)
void __init acpi_numa_arch_fixup(void) {}
-int __init acpi_get_nodes(struct bootnode *physnodes)
+#ifdef CONFIG_NUMA_EMU
+void __init acpi_get_nodes(struct bootnode *physnodes, unsigned long start,
+ unsigned long end)
{
int i;
- int ret = 0;
for_each_node_mask(i, nodes_parsed) {
- physnodes[ret].start = nodes[i].start;
- physnodes[ret].end = nodes[i].end;
- ret++;
+ cutoff_node(i, start, end);
+ physnodes[i].start = nodes[i].start;
+ physnodes[i].end = nodes[i].end;
}
- return ret;
}
+#endif /* CONFIG_NUMA_EMU */
/* Use the information discovered above to actually set up the nodes. */
int __init acpi_scan_nodes(unsigned long start, unsigned long end)
@@ -505,8 +506,6 @@ void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
{
int i, j;
- printk(KERN_INFO "Faking PXM affinity for fake nodes on real "
- "topology.\n");
for (i = 0; i < num_nodes; i++) {
int nid, pxm;
@@ -526,6 +525,17 @@ void __init acpi_fake_nodes(const struct bootnode *fake_nodes, int num_nodes)
fake_apicid_to_node[j] == NUMA_NO_NODE)
fake_apicid_to_node[j] = i;
}
+
+ /*
+ * If there are apicid-to-node mappings for physical nodes that do not
+ * have a corresponding emulated node, it should default to a guaranteed
+ * value.
+ */
+ for (i = 0; i < MAX_LOCAL_APIC; i++)
+ if (apicid_to_node[i] != NUMA_NO_NODE &&
+ fake_apicid_to_node[i] == NUMA_NO_NODE)
+ fake_apicid_to_node[i] = 0;
+
for (i = 0; i < num_nodes; i++)
__acpi_map_pxm_to_node(fake_node_to_pxm_map[i], i);
memcpy(apicid_to_node, fake_apicid_to_node, sizeof(apicid_to_node));
diff --git a/arch/x86/pci/amd_bus.c b/arch/x86/pci/amd_bus.c
index fc1e8fe..e27dffb 100644
--- a/arch/x86/pci/amd_bus.c
+++ b/arch/x86/pci/amd_bus.c
@@ -4,6 +4,7 @@
#include <linux/cpu.h>
#include <linux/range.h>
+#include <asm/amd_nb.h>
#include <asm/pci_x86.h>
#include <asm/pci-direct.h>
@@ -378,6 +379,34 @@ static struct notifier_block __cpuinitdata amd_cpu_notifier = {
.notifier_call = amd_cpu_notify,
};
+static void __init pci_enable_pci_io_ecs(void)
+{
+#ifdef CONFIG_AMD_NB
+ unsigned int i, n;
+
+ for (n = i = 0; !n && amd_nb_bus_dev_ranges[i].dev_limit; ++i) {
+ u8 bus = amd_nb_bus_dev_ranges[i].bus;
+ u8 slot = amd_nb_bus_dev_ranges[i].dev_base;
+ u8 limit = amd_nb_bus_dev_ranges[i].dev_limit;
+
+ for (; slot < limit; ++slot) {
+ u32 val = read_pci_config(bus, slot, 3, 0);
+
+ if (!early_is_amd_nb(val))
+ continue;
+
+ val = read_pci_config(bus, slot, 3, 0x8c);
+ if (!(val & (ENABLE_CF8_EXT_CFG >> 32))) {
+ val |= ENABLE_CF8_EXT_CFG >> 32;
+ write_pci_config(bus, slot, 3, 0x8c, val);
+ }
+ ++n;
+ }
+ }
+ pr_info("Extended Config Space enabled on %u nodes\n", n);
+#endif
+}
+
static int __init pci_io_ecs_init(void)
{
int cpu;
@@ -386,6 +415,10 @@ static int __init pci_io_ecs_init(void)
if (boot_cpu_data.x86 < 0x10)
return 0;
+ /* Try the PCI method first. */
+ if (early_pci_allowed())
+ pci_enable_pci_io_ecs();
+
register_cpu_notifier(&amd_cpu_notifier);
for_each_online_cpu(cpu)
amd_cpu_notify(&amd_cpu_notifier, (unsigned long)CPU_ONLINE,
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index cb845c1..dd7d4e2 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -518,6 +518,7 @@
#define PCI_DEVICE_ID_AMD_11H_NB_MISC 0x1303
#define PCI_DEVICE_ID_AMD_11H_NB_LINK 0x1304
#define PCI_DEVICE_ID_AMD_15H_NB_MISC 0x1603
+#define PCI_DEVICE_ID_AMD_CNB17H_F3 0x1703
#define PCI_DEVICE_ID_AMD_LANCE 0x2000
#define PCI_DEVICE_ID_AMD_LANCE_HOME 0x2001
#define PCI_DEVICE_ID_AMD_SCSI 0x2020
--
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