Commit f98982ce authored by Linus Torvalds's avatar Linus Torvalds

Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 platform changes from Ingo Molnar:

 - Support for the Technologic Systems TS-5500 platform, by Vivien
   Didelot

 - Improved NUMA support on AMD systems:

   Add support for federated systems where multiple memory controllers
   can exist and see each other over multiple PCI domains.  This
   basically means that AMD node ids can be more than 8 now and the code
   handling this is taught to incorporate PCI domain into those IDs.

 - Support for the Goldfish virtual Android emulator, by Jun Nakajima,
   Intel, Google, et al.

 - Misc fixlets.

* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86: Add TS-5500 platform support
  x86/srat: Simplify memory affinity init error handling
  x86/apb/timer: Remove unnecessary "if"
  goldfish: platform device for x86
  amd64_edac: Fix type usage in NB IDs and memory ranges
  amd64_edac: Fix PCI function lookup
  x86, AMD, NB: Use u16 for northbridge IDs in amd_get_nb_id
  x86, AMD, NB: Add multi-domain support
parents 29d50523 7d029125
What: /sys/devices/platform/ts5500/adc
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Indicates the presence of an A/D Converter. If it is present,
it will display "1", otherwise "0".
What: /sys/devices/platform/ts5500/ereset
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Indicates the presence of an external reset. If it is present,
it will display "1", otherwise "0".
What: /sys/devices/platform/ts5500/id
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Product ID of the TS board. TS-5500 ID is 0x60.
What: /sys/devices/platform/ts5500/jumpers
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Bitfield showing the jumpers' state. If a jumper is present,
the corresponding bit is set. For instance, 0x0e means jumpers
2, 3 and 4 are set.
What: /sys/devices/platform/ts5500/rs485
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Indicates the presence of the RS485 option. If it is present,
it will display "1", otherwise "0".
What: /sys/devices/platform/ts5500/sram
Date: January 2013
KernelVersion: 3.7
Contact: "Savoir-faire Linux Inc." <[email protected]>
Description:
Indicates the presence of the SRAM option. If it is present,
it will display "1", otherwise "0".
......@@ -7533,6 +7533,11 @@ F: drivers/net/team/
F: include/linux/if_team.h
F: include/uapi/linux/if_team.h
TECHNOLOGIC SYSTEMS TS-5500 PLATFORM SUPPORT
M: Savoir-faire Linux Inc. <[email protected]>
S: Maintained
F: arch/x86/platform/ts5500/
TECHNOTREND USB IR RECEIVER
M: Sean Young <[email protected]>
L: [email protected]
......
......@@ -323,6 +323,10 @@ config X86_BIGSMP
---help---
This option is needed for the systems that have more than 8 CPUs
config GOLDFISH
def_bool y
depends on X86_GOLDFISH
if X86_32
config X86_EXTENDED_PLATFORM
bool "Support for extended (non-PC) x86 platforms"
......@@ -405,6 +409,14 @@ config X86_UV
# Following is an alphabetically sorted list of 32 bit extended platforms
# Please maintain the alphabetic order if and when there are additions
config X86_GOLDFISH
bool "Goldfish (Virtual Platform)"
depends on X86_32
---help---
Enable support for the Goldfish virtual platform used primarily
for Android development. Unless you are building for the Android
Goldfish emulator say N here.
config X86_INTEL_CE
bool "CE4100 TV platform"
depends on PCI
......@@ -2191,6 +2203,15 @@ config GEOS
---help---
This option enables system support for the Traverse Technologies GEOS.
config TS5500
bool "Technologic Systems TS-5500 platform support"
depends on MELAN
select CHECK_SIGNATURE
select NEW_LEDS
select LEDS_CLASS
---help---
This option enables system support for the Technologic Systems TS-5500.
endif # X86_32
config AMD_NB
......
......@@ -81,6 +81,23 @@ static inline struct amd_northbridge *node_to_amd_nb(int node)
return (node < amd_northbridges.num) ? &amd_northbridges.nb[node] : NULL;
}
static inline u16 amd_get_node_id(struct pci_dev *pdev)
{
struct pci_dev *misc;
int i;
for (i = 0; i != amd_nb_num(); i++) {
misc = node_to_amd_nb(i)->misc;
if (pci_domain_nr(misc->bus) == pci_domain_nr(pdev->bus) &&
PCI_SLOT(misc->devfn) == PCI_SLOT(pdev->devfn))
return i;
}
WARN(1, "Unable to find AMD Northbridge id for %s\n", pci_name(pdev));
return 0;
}
#else
#define amd_nb_num(x) 0
......
......@@ -943,7 +943,7 @@ extern void start_thread(struct pt_regs *regs, unsigned long new_ip,
extern int get_tsc_mode(unsigned long adr);
extern int set_tsc_mode(unsigned int val);
extern int amd_get_nb_id(int cpu);
extern u16 amd_get_nb_id(int cpu);
struct aperfmperf {
u64 aperf, mperf;
......
......@@ -240,7 +240,7 @@ static int apbt_cpuhp_notify(struct notifier_block *n,
dw_apb_clockevent_pause(adev->timer);
if (system_state == SYSTEM_RUNNING) {
pr_debug("skipping APBT CPU %lu offline\n", cpu);
} else if (adev) {
} else {
pr_debug("APBT clockevent for cpu %lu offline\n", cpu);
dw_apb_clockevent_stop(adev->timer);
}
......
......@@ -364,9 +364,9 @@ static void __cpuinit amd_detect_cmp(struct cpuinfo_x86 *c)
#endif
}
int amd_get_nb_id(int cpu)
u16 amd_get_nb_id(int cpu)
{
int id = 0;
u16 id = 0;
#ifdef CONFIG_SMP
id = per_cpu(cpu_llc_id, cpu);
#endif
......
......@@ -149,39 +149,40 @@ acpi_numa_memory_affinity_init(struct acpi_srat_mem_affinity *ma)
int node, pxm;
if (srat_disabled())
return -1;
if (ma->header.length != sizeof(struct acpi_srat_mem_affinity)) {
bad_srat();
return -1;
}
goto out_err;
if (ma->header.length != sizeof(struct acpi_srat_mem_affinity))
goto out_err_bad_srat;
if ((ma->flags & ACPI_SRAT_MEM_ENABLED) == 0)
return -1;
goto out_err;
if ((ma->flags & ACPI_SRAT_MEM_HOT_PLUGGABLE) && !save_add_info())
return -1;
goto out_err;
start = ma->base_address;
end = start + ma->length;
pxm = ma->proximity_domain;
if (acpi_srat_revision <= 1)
pxm &= 0xff;
node = setup_node(pxm);
if (node < 0) {
printk(KERN_ERR "SRAT: Too many proximity domains.\n");
bad_srat();
return -1;
goto out_err_bad_srat;
}
if (numa_add_memblk(node, start, end) < 0) {
bad_srat();
return -1;
}
if (numa_add_memblk(node, start, end) < 0)
goto out_err_bad_srat;
node_set(node, numa_nodes_parsed);
printk(KERN_INFO "SRAT: Node %u PXM %u [mem %#010Lx-%#010Lx]\n",
node, pxm,
(unsigned long long) start, (unsigned long long) end - 1);
return 0;
out_err_bad_srat:
bad_srat();
out_err:
return -1;
}
void __init acpi_numa_arch_fixup(void) {}
......
......@@ -2,10 +2,12 @@
obj-y += ce4100/
obj-y += efi/
obj-y += geode/
obj-y += goldfish/
obj-y += iris/
obj-y += mrst/
obj-y += olpc/
obj-y += scx200/
obj-y += sfi/
obj-y += ts5500/
obj-y += visws/
obj-y += uv/
obj-$(CONFIG_GOLDFISH) += goldfish.o
/*
* Copyright (C) 2007 Google, Inc.
* Copyright (C) 2011 Intel, Inc.
* Copyright (C) 2013 Intel, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/kernel.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
/*
* Where in virtual device memory the IO devices (timers, system controllers
* and so on)
*/
#define GOLDFISH_PDEV_BUS_BASE (0xff001000)
#define GOLDFISH_PDEV_BUS_END (0xff7fffff)
#define GOLDFISH_PDEV_BUS_IRQ (4)
#define GOLDFISH_TTY_BASE (0x2000)
static struct resource goldfish_pdev_bus_resources[] = {
{
.start = GOLDFISH_PDEV_BUS_BASE,
.end = GOLDFISH_PDEV_BUS_END,
.flags = IORESOURCE_MEM,
},
{
.start = GOLDFISH_PDEV_BUS_IRQ,
.end = GOLDFISH_PDEV_BUS_IRQ,
.flags = IORESOURCE_IRQ,
}
};
static int __init goldfish_init(void)
{
platform_device_register_simple("goldfish_pdev_bus", -1,
goldfish_pdev_bus_resources, 2);
return 0;
}
device_initcall(goldfish_init);
obj-$(CONFIG_TS5500) += ts5500.o
/*
* Technologic Systems TS-5500 Single Board Computer support
*
* Copyright (C) 2013 Savoir-faire Linux Inc.
* Vivien Didelot <[email protected]>
*
* 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; either version 2 of the License, or (at your option) any later
* version.
*
*
* This driver registers the Technologic Systems TS-5500 Single Board Computer
* (SBC) and its devices, and exposes information to userspace such as jumpers'
* state or available options. For further information about sysfs entries, see
* Documentation/ABI/testing/sysfs-platform-ts5500.
*
* This code actually supports the TS-5500 platform, but it may be extended to
* support similar Technologic Systems x86-based platforms, such as the TS-5600.
*/
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/kernel.h>
#include <linux/leds.h>
#include <linux/module.h>
#include <linux/platform_data/gpio-ts5500.h>
#include <linux/platform_data/max197.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
/* Product code register */
#define TS5500_PRODUCT_CODE_ADDR 0x74
#define TS5500_PRODUCT_CODE 0x60 /* TS-5500 product code */
/* SRAM/RS-485/ADC options, and RS-485 RTS/Automatic RS-485 flags register */
#define TS5500_SRAM_RS485_ADC_ADDR 0x75
#define TS5500_SRAM BIT(0) /* SRAM option */
#define TS5500_RS485 BIT(1) /* RS-485 option */
#define TS5500_ADC BIT(2) /* A/D converter option */
#define TS5500_RS485_RTS BIT(6) /* RTS for RS-485 */
#define TS5500_RS485_AUTO BIT(7) /* Automatic RS-485 */
/* External Reset/Industrial Temperature Range options register */
#define TS5500_ERESET_ITR_ADDR 0x76
#define TS5500_ERESET BIT(0) /* External Reset option */
#define TS5500_ITR BIT(1) /* Indust. Temp. Range option */
/* LED/Jumpers register */
#define TS5500_LED_JP_ADDR 0x77
#define TS5500_LED BIT(0) /* LED flag */
#define TS5500_JP1 BIT(1) /* Automatic CMOS */
#define TS5500_JP2 BIT(2) /* Enable Serial Console */
#define TS5500_JP3 BIT(3) /* Write Enable Drive A */
#define TS5500_JP4 BIT(4) /* Fast Console (115K baud) */
#define TS5500_JP5 BIT(5) /* User Jumper */
#define TS5500_JP6 BIT(6) /* Console on COM1 (req. JP2) */
#define TS5500_JP7 BIT(7) /* Undocumented (Unused) */
/* A/D Converter registers */
#define TS5500_ADC_CONV_BUSY_ADDR 0x195 /* Conversion state register */
#define TS5500_ADC_CONV_BUSY BIT(0)
#define TS5500_ADC_CONV_INIT_LSB_ADDR 0x196 /* Start conv. / LSB register */
#define TS5500_ADC_CONV_MSB_ADDR 0x197 /* MSB register */
#define TS5500_ADC_CONV_DELAY 12 /* usec */
/**
* struct ts5500_sbc - TS-5500 board description
* @id: Board product ID.
* @sram: Flag for SRAM option.
* @rs485: Flag for RS-485 option.
* @adc: Flag for Analog/Digital converter option.
* @ereset: Flag for External Reset option.
* @itr: Flag for Industrial Temperature Range option.
* @jumpers: Bitfield for jumpers' state.
*/
struct ts5500_sbc {
int id;
bool sram;
bool rs485;
bool adc;
bool ereset;
bool itr;
u8 jumpers;
};
/* Board signatures in BIOS shadow RAM */
static const struct {
const char * const string;
const ssize_t offset;
} ts5500_signatures[] __initdata = {
{ "TS-5x00 AMD Elan", 0xb14 },
};
static int __init ts5500_check_signature(void)
{
void __iomem *bios;
int i, ret = -ENODEV;
bios = ioremap(0xf0000, 0x10000);
if (!bios)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(ts5500_signatures); i++) {
if (check_signature(bios + ts5500_signatures[i].offset,
ts5500_signatures[i].string,
strlen(ts5500_signatures[i].string))) {
ret = 0;
break;
}
}
iounmap(bios);
return ret;
}
static int __init ts5500_detect_config(struct ts5500_sbc *sbc)
{
u8 tmp;
int ret = 0;
if (!request_region(TS5500_PRODUCT_CODE_ADDR, 4, "ts5500"))
return -EBUSY;
tmp = inb(TS5500_PRODUCT_CODE_ADDR);
if (tmp != TS5500_PRODUCT_CODE) {
pr_err("This platform is not a TS-5500 (found ID 0x%x)\n", tmp);
ret = -ENODEV;
goto cleanup;
}
sbc->id = tmp;
tmp = inb(TS5500_SRAM_RS485_ADC_ADDR);
sbc->sram = tmp & TS5500_SRAM;
sbc->rs485 = tmp & TS5500_RS485;
sbc->adc = tmp & TS5500_ADC;
tmp = inb(TS5500_ERESET_ITR_ADDR);
sbc->ereset = tmp & TS5500_ERESET;
sbc->itr = tmp & TS5500_ITR;
tmp = inb(TS5500_LED_JP_ADDR);
sbc->jumpers = tmp & ~TS5500_LED;
cleanup:
release_region(TS5500_PRODUCT_CODE_ADDR, 4);
return ret;
}
static ssize_t ts5500_show_id(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
return sprintf(buf, "0x%.2x\n", sbc->id);
}
static ssize_t ts5500_show_jumpers(struct device *dev,
struct device_attribute *attr,
char *buf)
{
struct ts5500_sbc *sbc = dev_get_drvdata(dev);
return sprintf(buf, "0x%.2x\n", sbc->jumpers >> 1);
}
#define TS5500_SHOW(field) \
static ssize_t ts5500_show_##field(struct device *dev, \
struct device_attribute *attr, \
char *buf) \
{ \
struct ts5500_sbc *sbc = dev_get_drvdata(dev); \
return sprintf(buf, "%d\n", sbc->field); \
}
TS5500_SHOW(sram)
TS5500_SHOW(rs485)
TS5500_SHOW(adc)
TS5500_SHOW(ereset)
TS5500_SHOW(itr)
static DEVICE_ATTR(id, S_IRUGO, ts5500_show_id, NULL);
static DEVICE_ATTR(jumpers, S_IRUGO, ts5500_show_jumpers, NULL);
static DEVICE_ATTR(sram, S_IRUGO, ts5500_show_sram, NULL);
static DEVICE_ATTR(rs485, S_IRUGO, ts5500_show_rs485, NULL);
static DEVICE_ATTR(adc, S_IRUGO, ts5500_show_adc, NULL);
static DEVICE_ATTR(ereset, S_IRUGO, ts5500_show_ereset, NULL);
static DEVICE_ATTR(itr, S_IRUGO, ts5500_show_itr, NULL);
static struct attribute *ts5500_attributes[] = {
&dev_attr_id.attr,
&dev_attr_jumpers.attr,
&dev_attr_sram.attr,
&dev_attr_rs485.attr,
&dev_attr_adc.attr,
&dev_attr_ereset.attr,
&dev_attr_itr.attr,
NULL
};
static const struct attribute_group ts5500_attr_group = {
.attrs = ts5500_attributes,
};
static struct resource ts5500_dio1_resource[] = {
DEFINE_RES_IRQ_NAMED(7, "DIO1 interrupt"),
};
static struct platform_device ts5500_dio1_pdev = {
.name = "ts5500-dio1",
.id = -1,
.resource = ts5500_dio1_resource,
.num_resources = 1,
};
static struct resource ts5500_dio2_resource[] = {
DEFINE_RES_IRQ_NAMED(6, "DIO2 interrupt"),
};
static struct platform_device ts5500_dio2_pdev = {
.name = "ts5500-dio2",
.id = -1,
.resource = ts5500_dio2_resource,
.num_resources = 1,
};
static void ts5500_led_set(struct led_classdev *led_cdev,
enum led_brightness brightness)
{
outb(!!brightness, TS5500_LED_JP_ADDR);
}
static enum led_brightness ts5500_led_get(struct led_classdev *led_cdev)
{
return (inb(TS5500_LED_JP_ADDR) & TS5500_LED) ? LED_FULL : LED_OFF;
}
static struct led_classdev ts5500_led_cdev = {
.name = "ts5500:green:",
.brightness_set = ts5500_led_set,
.brightness_get = ts5500_led_get,
};
static int ts5500_adc_convert(u8 ctrl)
{
u8 lsb, msb;
/* Start conversion (ensure the 3 MSB are set to 0) */
outb(ctrl & 0x1f, TS5500_ADC_CONV_INIT_LSB_ADDR);
/*
* The platform has CPLD logic driving the A/D converter.
* The conversion must complete within 11 microseconds,
* otherwise we have to re-initiate a conversion.
*/
udelay(TS5500_ADC_CONV_DELAY);
if (inb(TS5500_ADC_CONV_BUSY_ADDR) & TS5500_ADC_CONV_BUSY)
return -EBUSY;
/* Read the raw data */
lsb = inb(TS5500_ADC_CONV_INIT_LSB_ADDR);
msb = inb(TS5500_ADC_CONV_MSB_ADDR);
return (msb << 8) | lsb;
}
static struct max197_platform_data ts5500_adc_pdata = {
.convert = ts5500_adc_convert,
};
static struct platform_device ts5500_adc_pdev = {
.name = "max197",
.id = -1,
.dev = {
.platform_data = &ts5500_adc_pdata,
},
};
static int __init ts5500_init(void)
{
struct platform_device *pdev;
struct ts5500_sbc *sbc;
int err;
/*
* There is no DMI available or PCI bridge subvendor info,
* only the BIOS provides a 16-bit identification call.
* It is safer to find a signature in the BIOS shadow RAM.
*/
err = ts5500_check_signature();
if (err)
return err;
pdev = platform_device_register_simple("ts5500", -1, NULL, 0);
if (IS_ERR(pdev))
return PTR_ERR(pdev);
sbc = devm_kzalloc(&pdev->dev, sizeof(struct ts5500_sbc), GFP_KERNEL);
if (!sbc) {
err = -ENOMEM;
goto error;
}
err = ts5500_detect_config(sbc);
if (err)
goto error;
platform_set_drvdata(pdev, sbc);
err = sysfs_create_group(&pdev->dev.kobj, &ts5500_attr_group);
if (err)
goto error;
ts5500_dio1_pdev.dev.parent = &pdev->dev;
if (platform_device_register(&ts5500_dio1_pdev))
dev_warn(&pdev->dev, "DIO1 block registration failed\n");
ts5500_dio2_pdev.dev.parent = &pdev->dev;
if (platform_device_register(&ts5500_dio2_pdev))
dev_warn(&pdev->dev, "DIO2 block registration failed\n");
if (led_classdev_register(&pdev->dev, &ts5500_led_cdev))
dev_warn(&pdev->dev, "LED registration failed\n");
if (sbc->adc) {
ts5500_adc_pdev.dev.parent = &pdev->dev;
if (platform_device_register(&ts5500_adc_pdev))
dev_warn(&pdev->dev, "ADC registration failed\n");
}
return 0;
error:
platform_device_unregister(pdev);
return err;
}
device_initcall(ts5500_init);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Savoir-faire Linux Inc. <[email protected]>");
MODULE_DESCRIPTION("Technologic Systems TS-5500 platform driver");
......@@ -31,7 +31,7 @@ static struct ecc_settings **ecc_stngs;
*
*FIXME: Produce a better mapping/linearisation.
*/
struct scrubrate {
static const struct scrubrate {
u32 scrubval; /* bit pattern for scrub rate */
u32 bandwidth; /* bandwidth consumed (bytes/sec) */
} scrubrates[] = {
......@@ -239,7 +239,7 @@ static int amd64_get_scrub_rate(struct mem_ctl_info *mci)
* DRAM base/limit associated with node_id
*/
static bool amd64_base_limit_match(struct amd64_pvt *pvt, u64 sys_addr,
unsigned nid)
u8 nid)
{
u64 addr;
......@@ -265,7 +265,7 @@ static struct mem_ctl_info *find_mc_by_sys_addr(struct mem_ctl_info *mci,
u64 sys_addr)
{
struct amd64_pvt *pvt;
unsigned node_id;
u8 node_id;
u32 intlv_en, bits;
/*
......@@ -939,7 +939,8 @@ static u64 get_error_address(struct mce *m)
struct amd64_pvt *pvt;
u64 cc6_base, tmp_addr;
u32 tmp;
u8 mce_nid, intlv_en;
u16 mce_nid;
u8 intlv_en;
if ((addr & GENMASK(24, 47)) >> 24 != 0x00fdf7)
return addr;
......@@ -979,10 +980,29 @@ static u64 get_error_address(struct mce *m)
return addr;
}
static struct pci_dev *pci_get_related_function(unsigned int vendor,
unsigned int device,
struct pci_dev *related)
{
struct pci_dev *dev = NULL;
while ((dev = pci_get_device(vendor, device, dev))) {
if (pci_domain_nr(dev->bus) == pci_domain_nr(related->bus) &&
(dev->bus->number == related->bus->number) &&
(PCI_SLOT(dev->devfn) == PCI_SLOT(related->devfn)))
break;
}
return dev;
}
static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range)
{
struct amd_northbridge *nb;
struct pci_dev *misc, *f1 = NULL;
struct cpuinfo_x86 *c = &boot_cpu_data;
int off = range << 3;
u32 llim;
amd64_read_pci_cfg(pvt->F1, DRAM_BASE_LO + off, &pvt->ranges[range].base.lo);
amd64_read_pci_cfg(pvt->F1, DRAM_LIMIT_LO + off, &pvt->ranges[range].lim.lo);
......@@ -996,30 +1016,32 @@ static void read_dram_base_limit_regs(struct amd64_pvt *pvt, unsigned range)
amd64_read_pci_cfg(pvt->F1, DRAM_BASE_HI + off, &pvt->ranges[range].base.hi);
amd64_read_pci_cfg(pvt->F1, DRAM_LIMIT_HI + off, &pvt->ranges[range].lim.hi);
/* Factor in CC6 save area by reading dst node's limit reg */
if (c->x86 == 0x15) {
struct pci_dev *f1 = NULL;
u8 nid = dram_dst_node(pvt, range);
u32 llim;
/* F15h: factor in CC6 save area by reading dst node's limit reg */
if (c->x86 != 0x15)
return;
f1 = pci_get_domain_bus_and_slot(0, 0, PCI_DEVFN(0x18 + nid, 1));
if (WARN_ON(!f1))
return;
nb = node_to_amd_nb(dram_dst_node(pvt, range));
if (WARN_ON(!nb))
return;
amd64_read_pci_cfg(f1, DRAM_LOCAL_NODE_LIM, &llim);
misc = nb->misc;
f1 = pci_get_related_function(misc->vendor, PCI_DEVICE_ID_AMD_15H_NB_F1, misc);
if (WARN_ON(!f1))
return;
pvt->ranges[range].lim.lo &= GENMASK(0, 15);
amd64_read_pci_cfg(f1, DRAM_LOCAL_NODE_LIM, &llim);
/* {[39:27],111b} */
pvt->ranges[range].lim.lo |= ((llim & 0x1fff) << 3 | 0x7) << 16;
pvt->ranges[range].lim.lo &= GENMASK(0, 15);
pvt->ranges[range].lim.hi &= GENMASK(0, 7);
/* {[39:27],111b} */
pvt->ranges[range].lim.lo |= ((llim & 0x1fff) << 3 | 0x7) << 16;
/* [47:40] */
pvt->ranges[range].lim.hi |= llim >> 13;
pvt->ranges[range].lim.hi &= GENMASK(0, 7);
pci_dev_put(f1);