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linux-sg2042
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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [RAPIDIO] Change RapidIO doorbell source and target ID field to 16-bit
  [RAPIDIO] Add RapidIO connection info print out and re-training for broken connections
  [RAPIDIO] Add serial RapidIO controller support, which includes MPC8548, MPC8641
  [RAPIDIO] Add RapidIO node probing into MPC86xx_HPCN board id table
  [RAPIDIO] Add RapidIO node into MPC8641HPCN dts file
  [RAPIDIO] Auto-probe the RapidIO system size
  [RAPIDIO] Add OF-tree support to RapidIO controller driver
  [RAPIDIO] Add RapidIO multi mport support
  [RAPIDIO] Move include/asm-ppc/rio.h to asm-powerpc
  [RAPIDIO] Add RapidIO option to kernel configuration
  [RAPIDIO] Change RIO function mpc85xx_ to fsl_
  [POWERPC] Provide walk_memory_resource() for powerpc
  [POWERPC] Update lmb data structures for hotplug memory add/remove
  [POWERPC] Hotplug memory remove notifications for powerpc
  [POWERPC] windfarm: Add PowerMac 12,1 support
  [POWERPC] Fix building of pmac32 when CONFIG_NVRAM=m
  [POWERPC] Add IRQSTACKS support on ppc32
  [POWERPC] Use __always_inline for xchg* and cmpxchg*
  [POWERPC] Add fast little-endian switch system call
This commit is contained in:
Linus Torvalds 2008-04-29 08:19:14 -07:00
parent 44473d9913 6c39103ce5
commit 867a89e0b7
41 changed files with 2036 additions and 387 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
arch/powerpc/Kconfig
View File

@ -608,6 +608,19 @@ source "drivers/pcmcia/Kconfig"
source "drivers/pci/hotplug/Kconfig"
config HAS_RAPIDIO
bool
default n
config RAPIDIO
bool "RapidIO support"
depends on HAS_RAPIDIO
help
If you say Y here, the kernel will include drivers and
infrastructure code to support RapidIO interconnect devices.
source "drivers/rapidio/Kconfig"
endmenu
menu "Advanced setup"

1
arch/powerpc/Kconfig.debug
View File

@ -118,7 +118,6 @@ config XMON_DISASSEMBLY
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
depends on PPC64
help
If you say Y here the kernel will use separate kernel stacks
for handling hard and soft interrupts. This can help avoid

12
arch/powerpc/boot/dts/mpc8641_hpcn.dts
View File

@ -26,6 +26,7 @@
serial1 = &serial1;
pci0 = &pci0;
pci1 = &pci1;
rapidio0 = &rapidio0;
};
cpus {
@ -500,4 +501,15 @@
0x0 0x00100000>;
};
};
rapidio0: rapidio@f80c0000 {
#address-cells = <2>;
#size-cells = <2>;
compatible = "fsl,rapidio-delta";
reg = <0xf80c0000 0x20000>;
ranges = <0 0 0xc0000000 0 0x20000000>;
interrupt-parent = <&mpic>;
/* err_irq bell_outb_irq bell_inb_irq
msg1_tx_irq msg1_rx_irq msg2_tx_irq msg2_rx_irq */
interrupts = <48 2 49 2 50 2 53 2 54 2 55 2 56 2>;
};
};

1
arch/powerpc/configs/g5_defconfig
View File

@ -696,6 +696,7 @@ CONFIG_WINDFARM=y
CONFIG_WINDFARM_PM81=y
CONFIG_WINDFARM_PM91=y
CONFIG_WINDFARM_PM112=y
CONFIG_WINDFARM_PM121=y
# CONFIG_PMAC_RACKMETER is not set
CONFIG_NETDEVICES=y
# CONFIG_NETDEVICES_MULTIQUEUE is not set

1
arch/powerpc/kernel/Makefile
View File

@ -73,7 +73,6 @@ pci64-$(CONFIG_PPC64) += pci_dn.o isa-bridge.o
obj-$(CONFIG_PCI) += pci_$(CONFIG_WORD_SIZE).o $(pci64-y) \
pci-common.o
obj-$(CONFIG_PCI_MSI) += msi.o
obj-$(CONFIG_RAPIDIO) += rio.o
obj-$(CONFIG_KEXEC) += machine_kexec.o crash.o \
machine_kexec_$(CONFIG_WORD_SIZE).o
obj-$(CONFIG_AUDIT) += audit.o

1
arch/powerpc/kernel/asm-offsets.c
View File

@ -63,6 +63,7 @@ int main(void)
#endif /* CONFIG_PPC64 */
DEFINE(KSP, offsetof(struct thread_struct, ksp));
DEFINE(KSP_LIMIT, offsetof(struct thread_struct, ksp_limit));
DEFINE(PT_REGS, offsetof(struct thread_struct, regs));
DEFINE(THREAD_FPEXC_MODE, offsetof(struct thread_struct, fpexc_mode));
DEFINE(THREAD_FPR0, offsetof(struct thread_struct, fpr[0]));

5
arch/powerpc/kernel/entry_32.S
View File

@ -137,11 +137,12 @@ transfer_to_handler:
2: /* if from kernel, check interrupted DOZE/NAP mode and
* check for stack overflow
*/
lwz r9,THREAD_INFO-THREAD(r12)
cmplw r1,r9 /* if r1 <= current->thread_info */
lwz r9,KSP_LIMIT(r12)
cmplw r1,r9 /* if r1 <= ksp_limit */
ble- stack_ovf /* then the kernel stack overflowed */
5:
#ifdef CONFIG_6xx
rlwinm r9,r1,0,0,31-THREAD_SHIFT
tophys(r9,r9) /* check local flags */
lwz r12,TI_LOCAL_FLAGS(r9)
mtcrf 0x01,r12

11
arch/powerpc/kernel/head_64.S
View File

@ -239,6 +239,10 @@ instruction_access_slb_pSeries:
.globl system_call_pSeries
system_call_pSeries:
HMT_MEDIUM
BEGIN_FTR_SECTION
cmpdi r0,0x1ebe
beq- 1f
END_FTR_SECTION_IFSET(CPU_FTR_REAL_LE)
mr r9,r13
mfmsr r10
mfspr r13,SPRN_SPRG3
@ -253,6 +257,13 @@ system_call_pSeries:
rfid
b . /* prevent speculative execution */
/* Fast LE/BE switch system call */
1: mfspr r12,SPRN_SRR1
xori r12,r12,MSR_LE
mtspr SPRN_SRR1,r12
rfid /* return to userspace */
b .
STD_EXCEPTION_PSERIES(0xd00, single_step)
STD_EXCEPTION_PSERIES(0xe00, trap_0e)

10
arch/powerpc/kernel/irq.c
View File

@ -307,6 +307,7 @@ void do_IRQ(struct pt_regs *regs)
if (curtp != irqtp) {
struct irq_desc *desc = irq_desc + irq;
void *handler = desc->handle_irq;
unsigned long saved_sp_limit = current->thread.ksp_limit;
if (handler == NULL)
handler = &__do_IRQ;
irqtp->task = curtp->task;
@ -319,7 +320,10 @@ void do_IRQ(struct pt_regs *regs)
(irqtp->preempt_count & ~SOFTIRQ_MASK) |
(curtp->preempt_count & SOFTIRQ_MASK);
current->thread.ksp_limit = (unsigned long)irqtp +
_ALIGN_UP(sizeof(struct thread_info), 16);
call_handle_irq(irq, desc, irqtp, handler);
current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
@ -352,9 +356,7 @@ void __init init_IRQ(void)
{
if (ppc_md.init_IRQ)
ppc_md.init_IRQ();
#ifdef CONFIG_PPC64
irq_ctx_init();
#endif
}
@ -383,11 +385,15 @@ void irq_ctx_init(void)
static inline void do_softirq_onstack(void)
{
struct thread_info *curtp, *irqtp;
unsigned long saved_sp_limit = current->thread.ksp_limit;
curtp = current_thread_info();
irqtp = softirq_ctx[smp_processor_id()];
irqtp->task = curtp->task;
current->thread.ksp_limit = (unsigned long)irqtp +
_ALIGN_UP(sizeof(struct thread_info), 16);
call_do_softirq(irqtp);
current->thread.ksp_limit = saved_sp_limit;
irqtp->task = NULL;
}

25
arch/powerpc/kernel/misc_32.S
View File

@ -32,6 +32,31 @@
.text
#ifdef CONFIG_IRQSTACKS
_GLOBAL(call_do_softirq)
mflr r0
stw r0,4(r1)
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r3)
mr r1,r3
bl __do_softirq
lwz r1,0(r1)
lwz r0,4(r1)
mtlr r0
blr
_GLOBAL(call_handle_irq)
mflr r0
stw r0,4(r1)
mtctr r6
stwu r1,THREAD_SIZE-STACK_FRAME_OVERHEAD(r5)
mr r1,r5
bctrl
lwz r1,0(r1)
lwz r0,4(r1)
mtlr r0
blr
#endif /* CONFIG_IRQSTACKS */
/*
* This returns the high 64 bits of the product of two 64-bit numbers.
*/

2
arch/powerpc/kernel/process.c
View File

@ -589,6 +589,8 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp,
kregs = (struct pt_regs *) sp;
sp -= STACK_FRAME_OVERHEAD;
p->thread.ksp = sp;
p->thread.ksp_limit = (unsigned long)task_stack_page(p) +
_ALIGN_UP(sizeof(struct thread_info), 16);
#ifdef CONFIG_PPC64
if (cpu_has_feature(CPU_FTR_SLB)) {

52
arch/powerpc/kernel/rio.c
View File

@ -1,52 +0,0 @@
/*
* RapidIO PPC32 support
*
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
* 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.
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/rio.h>
#include <asm/rio.h>
/**
* platform_rio_init - Do platform specific RIO init
*
* Any platform specific initialization of RapdIO
* hardware is done here as well as registration
* of any active master ports in the system.
*/
void __attribute__ ((weak))
platform_rio_init(void)
{
printk(KERN_WARNING "RIO: No platform_rio_init() present\n");
}
/**
* ppc_rio_init - Do PPC32 RIO init
*
* Calls platform-specific RIO init code and then calls
* rio_init_mports() to initialize any master ports that
* have been registered with the RIO subsystem.
*/
static int __init ppc_rio_init(void)
{
printk(KERN_INFO "RIO: RapidIO init\n");
/* Platform specific initialization */
platform_rio_init();
/* Enumerate all registered ports */
rio_init_mports();
return 0;
}
subsys_initcall(ppc_rio_init);

21
arch/powerpc/kernel/setup_32.c
View File

@ -16,6 +16,7 @@
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/console.h>
#include <linux/lmb.h>
#include <asm/io.h>
#include <asm/prom.h>
@ -229,6 +230,24 @@ int __init ppc_init(void)
arch_initcall(ppc_init);
#ifdef CONFIG_IRQSTACKS
static void __init irqstack_early_init(void)
{
unsigned int i;
/* interrupt stacks must be in lowmem, we get that for free on ppc32
* as the lmb is limited to lowmem by LMB_REAL_LIMIT */
for_each_possible_cpu(i) {
softirq_ctx[i] = (struct thread_info *)
__va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
hardirq_ctx[i] = (struct thread_info *)
__va(lmb_alloc(THREAD_SIZE, THREAD_SIZE));
}
}
#else
#define irqstack_early_init()
#endif
/* Warning, IO base is not yet inited */
void __init setup_arch(char **cmdline_p)
{
@ -286,6 +305,8 @@ void __init setup_arch(char **cmdline_p)
init_mm.end_data = (unsigned long) _edata;
init_mm.brk = klimit;
irqstack_early_init();
/* set up the bootmem stuff with available memory */
do_init_bootmem();
if ( ppc_md.progress ) ppc_md.progress("setup_arch: bootmem", 0x3eab);

30
arch/powerpc/mm/mem.c
View File

@ -154,19 +154,35 @@ out:
/*
* walk_memory_resource() needs to make sure there is no holes in a given
* memory range. On PPC64, since this range comes from /sysfs, the range
* is guaranteed to be valid, non-overlapping and can not contain any
* holes. By the time we get here (memory add or remove), /proc/device-tree
* is updated and correct. Only reason we need to check against device-tree
* would be if we allow user-land to specify a memory range through a
* system call/ioctl etc. instead of doing offline/online through /sysfs.
* memory range. PPC64 does not maintain the memory layout in /proc/iomem.
* Instead it maintains it in lmb.memory structures. Walk through the
* memory regions, find holes and callback for contiguous regions.
*/
int
walk_memory_resource(unsigned long start_pfn, unsigned long nr_pages, void *arg,
int (*func)(unsigned long, unsigned long, void *))
{
return (*func)(start_pfn, nr_pages, arg);
struct lmb_property res;
unsigned long pfn, len;
u64 end;
int ret = -1;
res.base = (u64) start_pfn << PAGE_SHIFT;
res.size = (u64) nr_pages << PAGE_SHIFT;
end = res.base + res.size - 1;
while ((res.base < end) && (lmb_find(&res) >= 0)) {
pfn = (unsigned long)(res.base >> PAGE_SHIFT);
len = (unsigned long)(res.size >> PAGE_SHIFT);
ret = (*func)(pfn, len, arg);
if (ret)
break;
res.base += (res.size + 1);
res.size = (end - res.base + 1);
}
return ret;
}
EXPORT_SYMBOL_GPL(walk_memory_resource);
#endif /* CONFIG_MEMORY_HOTPLUG */

1
arch/powerpc/platforms/86xx/Kconfig
View File

@ -8,6 +8,7 @@ config MPC8641_HPCN
select PPC_I8259
select DEFAULT_UIMAGE
select FSL_ULI1575
select HAS_RAPIDIO
help
This option enables support for the MPC8641 HPCN board.

1
arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
View File

@ -221,6 +221,7 @@ mpc86xx_time_init(void)
static __initdata struct of_device_id of_bus_ids[] = {
{ .compatible = "simple-bus", },
{ .compatible = "fsl,rapidio-delta", },
{},
};

5
arch/powerpc/platforms/powermac/Makefile
View File

@ -6,7 +6,10 @@ obj-y += pic.o setup.o time.o feature.o pci.o \
obj-$(CONFIG_PMAC_BACKLIGHT) += backlight.o
obj-$(CONFIG_CPU_FREQ_PMAC) += cpufreq_32.o
obj-$(CONFIG_CPU_FREQ_PMAC64) += cpufreq_64.o
obj-$(CONFIG_NVRAM) += nvram.o
# CONFIG_NVRAM is an arch. independant tristate symbol, for pmac32 we really
# need this to be a bool. Cheat here and pretend CONFIG_NVRAM=m is really
# CONFIG_NVRAM=y
obj-$(CONFIG_NVRAM:m=y) += nvram.o
# ppc64 pmac doesn't define CONFIG_NVRAM but needs nvram stuff
obj-$(CONFIG_PPC64) += nvram.o
obj-$(CONFIG_PPC32) += bootx_init.o

3
arch/powerpc/platforms/powermac/setup.c
View File

@ -337,7 +337,8 @@ static void __init pmac_setup_arch(void)
find_via_pmu();
smu_init();
#if defined(CONFIG_NVRAM) || defined(CONFIG_PPC64)
#if defined(CONFIG_NVRAM) || defined(CONFIG_NVRAM_MODULE) || \
defined(CONFIG_PPC64)
pmac_nvram_init();
#endif

1
arch/powerpc/platforms/pseries/Makefile
View File

@ -18,6 +18,7 @@ obj-$(CONFIG_PCI) += pci.o pci_dlpar.o
obj-$(CONFIG_PCI_MSI) += msi.o
obj-$(CONFIG_HOTPLUG_CPU) += hotplug-cpu.o
obj-$(CONFIG_MEMORY_HOTPLUG) += hotplug-memory.o
obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
obj-$(CONFIG_HVCS) += hvcserver.o

141
arch/powerpc/platforms/pseries/hotplug-memory.c Normal file
View File

@ -0,0 +1,141 @@
/*
* pseries Memory Hotplug infrastructure.
*
* Copyright (C) 2008 Badari Pulavarty, IBM Corporation
*
* 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.
*/
#include <linux/of.h>
#include <linux/lmb.h>
#include <asm/firmware.h>
#include <asm/machdep.h>
#include <asm/pSeries_reconfig.h>
static int pseries_remove_memory(struct device_node *np)
{
const char *type;
const unsigned int *my_index;
const unsigned int *regs;
u64 start_pfn, start;
struct zone *zone;
int ret = -EINVAL;
/*
* Check to see if we are actually removing memory
*/
type = of_get_property(np, "device_type", NULL);
if (type == NULL || strcmp(type, "memory") != 0)
return 0;
/*
* Find the memory index and size of the removing section
*/
my_index = of_get_property(np, "ibm,my-drc-index", NULL);
if (!my_index)
return ret;
regs = of_get_property(np, "reg", NULL);
if (!regs)
return ret;
start_pfn = section_nr_to_pfn(*my_index & 0xffff);
zone = page_zone(pfn_to_page(start_pfn));
/*
* Remove section mappings and sysfs entries for the
* section of the memory we are removing.
*
* NOTE: Ideally, this should be done in generic code like
* remove_memory(). But remove_memory() gets called by writing
* to sysfs "state" file and we can't remove sysfs entries
* while writing to it. So we have to defer it to here.
*/
ret = __remove_pages(zone, start_pfn, regs[3] >> PAGE_SHIFT);
if (ret)
return ret;
/*
* Update memory regions for memory remove
*/
lmb_remove(start_pfn << PAGE_SHIFT, regs[3]);
/*
* Remove htab bolted mappings for this section of memory
*/
start = (unsigned long)__va(start_pfn << PAGE_SHIFT);
ret = remove_section_mapping(start, start + regs[3]);
return ret;
}
static int pseries_add_memory(struct device_node *np)
{
const char *type;
const unsigned int *my_index;
const unsigned int *regs;
u64 start_pfn;
int ret = -EINVAL;
/*
* Check to see if we are actually adding memory
*/
type = of_get_property(np, "device_type", NULL);
if (type == NULL || strcmp(type, "memory") != 0)
return 0;
/*
* Find the memory index and size of the added section
*/
my_index = of_get_property(np, "ibm,my-drc-index", NULL);
if (!my_index)
return ret;
regs = of_get_property(np, "reg", NULL);
if (!regs)
return ret;
start_pfn = section_nr_to_pfn(*my_index & 0xffff);
/*
* Update memory region to represent the memory add
*/
lmb_add(start_pfn << PAGE_SHIFT, regs[3]);
return 0;
}
static int pseries_memory_notifier(struct notifier_block *nb,
unsigned long action, void *node)
{
int err = NOTIFY_OK;
switch (action) {
case PSERIES_RECONFIG_ADD:
if (pseries_add_memory(node))
err = NOTIFY_BAD;
break;
case PSERIES_RECONFIG_REMOVE:
if (pseries_remove_memory(node))
err = NOTIFY_BAD;
break;
default:
err = NOTIFY_DONE;
break;
}
return err;
}
static struct notifier_block pseries_mem_nb = {
.notifier_call = pseries_memory_notifier,
};
static int __init pseries_memory_hotplug_init(void)
{
if (firmware_has_feature(FW_FEATURE_LPAR))
pSeries_reconfig_notifier_register(&pseries_mem_nb);
return 0;
}
machine_device_initcall(pseries, pseries_memory_hotplug_init);

709
arch/powerpc/sysdev/fsl_rio.c
View File

File diff suppressed because it is too large Load Diff

20
arch/powerpc/sysdev/fsl_rio.h
View File

@ -1,20 +0,0 @@
/*
* MPC85xx RapidIO definitions
*
* Copyright 2005 MontaVista Software, Inc.
* Matt Porter <mporter@kernel.crashing.org>
*
* 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.
*/
#ifndef __PPC_SYSLIB_PPC85XX_RIO_H
#define __PPC_SYSLIB_PPC85XX_RIO_H
#include <linux/init.h>
extern void mpc85xx_rio_setup(int law_start, int law_size);
#endif /* __PPC_SYSLIB_PPC85XX_RIO_H */

8
drivers/macintosh/Kconfig
View File

@ -234,6 +234,14 @@ config WINDFARM_PM112
which are the recent dual and quad G5 machines using the
970MP dual-core processor.
config WINDFARM_PM121
tristate "Support for thermal management on PowerMac12,1"
depends on WINDFARM && I2C && PMAC_SMU
select I2C_POWERMAC
help
This driver provides thermal control for the PowerMac12,1
which is the iMac G5 (iSight).
config ANSLCD
tristate "Support for ANS LCD display"
depends on ADB_CUDA && PPC_PMAC

5
drivers/macintosh/Makefile
View File

@ -42,4 +42,9 @@ obj-$(CONFIG_WINDFARM_PM112) += windfarm_pm112.o windfarm_smu_sat.o \
windfarm_smu_sensors.o \
windfarm_max6690_sensor.o \
windfarm_lm75_sensor.o windfarm_pid.o
obj-$(CONFIG_WINDFARM_PM121) += windfarm_pm121.o windfarm_smu_sat.o \
windfarm_smu_controls.o \
windfarm_smu_sensors.o \
windfarm_max6690_sensor.o \
windfarm_lm75_sensor.o windfarm_pid.o
obj-$(CONFIG_PMAC_RACKMETER) += rack-meter.o

6
drivers/macintosh/windfarm_lm75_sensor.c
View File

@ -127,6 +127,12 @@ static struct wf_lm75_sensor *wf_lm75_create(struct i2c_adapter *adapter,
*/
if (!strcmp(loc, "Hard drive") || !strcmp(loc, "DRIVE BAY"))
lm->sens.name = "hd-temp";
else if (!strcmp(loc, "Incoming Air Temp"))
lm->sens.name = "incoming-air-temp";
else if (!strcmp(loc, "ODD Temp"))
lm->sens.name = "optical-drive-temp";
else if (!strcmp(loc, "HD Temp"))
lm->sens.name = "hard-drive-temp";
else
goto fail;

20
drivers/macintosh/windfarm_max6690_sensor.c
View File

@ -77,18 +77,28 @@ static struct wf_sensor_ops wf_max6690_ops = {
.owner = THIS_MODULE,
};
static void wf_max6690_create(struct i2c_adapter *adapter, u8 addr)
static void wf_max6690_create(struct i2c_adapter *adapter, u8 addr,
const char *loc)
{
struct wf_6690_sensor *max;
char *name = "backside-temp";
char *name;
max = kzalloc(sizeof(struct wf_6690_sensor), GFP_KERNEL);
if (max == NULL) {
printk(KERN_ERR "windfarm: Couldn't create MAX6690 sensor %s: "
"no memory\n", name);
"no memory\n", loc);
return;
}
if (!strcmp(loc, "BACKSIDE"))
name = "backside-temp";
else if (!strcmp(loc, "NB Ambient"))
name = "north-bridge-temp";
else if (!strcmp(loc, "GPU Ambient"))
name = "gpu-temp";
else
goto fail;
max->sens.ops = &wf_max6690_ops;
max->sens.name = name;
max->i2c.addr = addr >> 1;
@ -138,9 +148,7 @@ static int wf_max6690_attach(struct i2c_adapter *adapter)
if (loc == NULL || addr == 0)
continue;
printk("found max6690, loc=%s addr=0x%02x\n", loc, addr);
if (strcmp(loc, "BACKSIDE"))
continue;
wf_max6690_create(adapter, addr);
wf_max6690_create(adapter, addr, loc);
}
return 0;

1040
drivers/macintosh/windfarm_pm121.c Normal file
View File

File diff suppressed because it is too large Load Diff

4
drivers/macintosh/windfarm_smu_controls.c
View File

@ -218,6 +218,10 @@ static struct smu_fan_control *smu_fan_create(struct device_node *node,
fct->ctrl.name = "cpu-fan";
else if (!strcmp(l, "Hard Drive") || !strcmp(l, "Hard drive"))
fct->ctrl.name = "drive-bay-fan";
else if (!strcmp(l, "HDD Fan")) /* seen on iMac G5 iSight */
fct->ctrl.name = "hard-drive-fan";
else if (!strcmp(l, "ODD Fan")) /* same */
fct->ctrl.name = "optical-drive-fan";
/* Unrecognized fan, bail out */
if (fct->ctrl.name == NULL)

16
drivers/net/rionet.c
View File

@ -77,7 +77,7 @@ static int rionet_capable = 1;
* could be made into a hash table to save memory depending
* on system trade-offs.
*/
static struct rio_dev *rionet_active[RIO_MAX_ROUTE_ENTRIES];
static struct rio_dev **rionet_active;
#define is_rionet_capable(pef, src_ops, dst_ops) \
((pef & RIO_PEF_INB_MBOX) && \
@ -195,7 +195,8 @@ static int rionet_start_xmit(struct sk_buff *skb, struct net_device *ndev)
}
if (eth->h_dest[0] & 0x01) {
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES; i++)
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rnet->mport->sys_size);
i++)
if (rionet_active[i])
rionet_queue_tx_msg(skb, ndev,
rionet_active[i]);
@ -385,6 +386,8 @@ static void rionet_remove(struct rio_dev *rdev)
struct net_device *ndev = NULL;
struct rionet_peer *peer, *tmp;
free_pages((unsigned long)rionet_active, rdev->net->hport->sys_size ?
__ilog2(sizeof(void *)) + 4 : 0);
unregister_netdev(ndev);
kfree(ndev);
@ -443,6 +446,15 @@ static int rionet_setup_netdev(struct rio_mport *mport)
goto out;
}
rionet_active = (struct rio_dev **)__get_free_pages(GFP_KERNEL,
mport->sys_size ? __ilog2(sizeof(void *)) + 4 : 0);
if (!rionet_active) {
rc = -ENOMEM;
goto out;
}
memset((void *)rionet_active, 0, sizeof(void *) *
RIO_MAX_ROUTE_ENTRIES(mport->sys_size));
/* Set up private area */
rnet = (struct rionet_private *)ndev->priv;
rnet->mport = mport;

8
drivers/rapidio/Kconfig
View File

@ -1,14 +1,6 @@
#
# RapidIO configuration
#
config RAPIDIO_8_BIT_TRANSPORT
bool "8-bit transport addressing"
depends on RAPIDIO
---help---
By default, the kernel assumes a 16-bit addressed RapidIO
network. By selecting this option, the kernel will support
an 8-bit addressed network.
config RAPIDIO_DISC_TIMEOUT
int "Discovery timeout duration (seconds)"
depends on RAPIDIO

10
drivers/rapidio/rio-access.c
View File

@ -48,7 +48,7 @@ int __rio_local_read_config_##size \
u32 data = 0; \
if (RIO_##size##_BAD) return RIO_BAD_SIZE; \
spin_lock_irqsave(&rio_config_lock, flags); \
res = mport->ops->lcread(mport->id, offset, len, &data); \
res = mport->ops->lcread(mport, mport->id, offset, len, &data); \
*value = (type)data; \
spin_unlock_irqrestore(&rio_config_lock, flags); \
return res; \
@ -71,7 +71,7 @@ int __rio_local_write_config_##size \
unsigned long flags; \
if (RIO_##size##_BAD) return RIO_BAD_SIZE; \
spin_lock_irqsave(&rio_config_lock, flags); \
res = mport->ops->lcwrite(mport->id, offset, len, value); \
res = mport->ops->lcwrite(mport, mport->id, offset, len, value);\
spin_unlock_irqrestore(&rio_config_lock, flags); \
return res; \
}
@ -108,7 +108,7 @@ int rio_mport_read_config_##size \
u32 data = 0; \
if (RIO_##size##_BAD) return RIO_BAD_SIZE; \
spin_lock_irqsave(&rio_config_lock, flags); \
res = mport->ops->cread(mport->id, destid, hopcount, offset, len, &data); \
res = mport->ops->cread(mport, mport->id, destid, hopcount, offset, len, &data); \
*value = (type)data; \
spin_unlock_irqrestore(&rio_config_lock, flags); \
return res; \
@ -131,7 +131,7 @@ int rio_mport_write_config_##size \
unsigned long flags; \
if (RIO_##size##_BAD) return RIO_BAD_SIZE; \
spin_lock_irqsave(&rio_config_lock, flags); \
res = mport->ops->cwrite(mport->id, destid, hopcount, offset, len, value); \
res = mport->ops->cwrite(mport, mport->id, destid, hopcount, offset, len, value); \
spin_unlock_irqrestore(&rio_config_lock, flags); \
return res; \
}
@ -166,7 +166,7 @@ int rio_mport_send_doorbell(struct rio_mport *mport, u16 destid, u16 data)
unsigned long flags;
spin_lock_irqsave(&rio_doorbell_lock, flags);
res = mport->ops->dsend(mport->id, destid, data);
res = mport->ops->dsend(mport, mport->id, destid, data);
spin_unlock_irqrestore(&rio_doorbell_lock, flags);
return res;

55
drivers/rapidio/rio-scan.c
View File

@ -73,7 +73,7 @@ static u16 rio_get_device_id(struct rio_mport *port, u16 destid, u8 hopcount)
rio_mport_read_config_32(port, destid, hopcount, RIO_DID_CSR, &result);
return RIO_GET_DID(result);
return RIO_GET_DID(port->sys_size, result);
}
/**
@ -88,7 +88,7 @@ static u16 rio_get_device_id(struct rio_mport *port, u16 destid, u8 hopcount)
static void rio_set_device_id(struct rio_mport *port, u16 destid, u8 hopcount, u16 did)
{
rio_mport_write_config_32(port, destid, hopcount, RIO_DID_CSR,
RIO_SET_DID(did));
RIO_SET_DID(port->sys_size, did));
}
/**
@ -100,7 +100,8 @@ static void rio_set_device_id(struct rio_mport *port, u16 destid, u8 hopcount, u
*/
static void rio_local_set_device_id(struct rio_mport *port, u16 did)
{
rio_local_write_config_32(port, RIO_DID_CSR, RIO_SET_DID(did));
rio_local_write_config_32(port, RIO_DID_CSR, RIO_SET_DID(port->sys_size,
did));
}
/**
@ -350,8 +351,18 @@ static struct rio_dev *rio_setup_device(struct rio_net *net,
rswitch->switchid = next_switchid;
rswitch->hopcount = hopcount;
rswitch->destid = destid;
rswitch->route_table = kzalloc(sizeof(u8)*
RIO_MAX_ROUTE_ENTRIES(port->sys_size),
GFP_KERNEL);
if (!rswitch->route_table) {
kfree(rdev);
rdev = NULL;
kfree(rswitch);
goto out;
}
/* Initialize switch route table */
for (rdid = 0; rdid < RIO_MAX_ROUTE_ENTRIES; rdid++)
for (rdid = 0; rdid < RIO_MAX_ROUTE_ENTRIES(port->sys_size);
rdid++)
rswitch->route_table[rdid] = RIO_INVALID_ROUTE;
rdev->rswitch = rswitch;
sprintf(rio_name(rdev), "%02x:s:%04x", rdev->net->id,
@ -480,7 +491,7 @@ static u16 rio_get_host_deviceid_lock(struct rio_mport *port, u8 hopcount)
{
u32 result;
rio_mport_read_config_32(port, RIO_ANY_DESTID, hopcount,
rio_mport_read_config_32(port, RIO_ANY_DESTID(port->sys_size), hopcount,
RIO_HOST_DID_LOCK_CSR, &result);
return (u16) (result & 0xffff);
@ -571,14 +582,16 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
}
/* Attempt to acquire device lock */
rio_mport_write_config_32(port, RIO_ANY_DESTID, hopcount,
rio_mport_write_config_32(port, RIO_ANY_DESTID(port->sys_size),
hopcount,
RIO_HOST_DID_LOCK_CSR, port->host_deviceid);
while ((tmp = rio_get_host_deviceid_lock(port, hopcount))
< port->host_deviceid) {
/* Delay a bit */
mdelay(1);
/* Attempt to acquire device lock again */
rio_mport_write_config_32(port, RIO_ANY_DESTID, hopcount,
rio_mport_write_config_32(port, RIO_ANY_DESTID(port->sys_size),
hopcount,
RIO_HOST_DID_LOCK_CSR,
port->host_deviceid);
}
@ -590,7 +603,9 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
}
/* Setup new RIO device */
if ((rdev = rio_setup_device(net, port, RIO_ANY_DESTID, hopcount, 1))) {
rdev = rio_setup_device(net, port, RIO_ANY_DESTID(port->sys_size),
hopcount, 1);
if (rdev) {
/* Add device to the global and bus/net specific list. */
list_add_tail(&rdev->net_list, &net->devices);
} else
@ -598,7 +613,8 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
if (rio_is_switch(rdev)) {
next_switchid++;
sw_inport = rio_get_swpinfo_inport(port, RIO_ANY_DESTID, hopcount);
sw_inport = rio_get_swpinfo_inport(port,
RIO_ANY_DESTID(port->sys_size), hopcount);
rio_route_add_entry(port, rdev->rswitch, RIO_GLOBAL_TABLE,
port->host_deviceid, sw_inport);
rdev->rswitch->route_table[port->host_deviceid] = sw_inport;
@ -612,7 +628,8 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
}
num_ports =
rio_get_swpinfo_tports(port, RIO_ANY_DESTID, hopcount);
rio_get_swpinfo_tports(port, RIO_ANY_DESTID(port->sys_size),
hopcount);
pr_debug(
"RIO: found %s (vid %4.4x did %4.4x) with %d ports\n",
rio_name(rdev), rdev->vid, rdev->did, num_ports);
@ -624,13 +641,15 @@ static int rio_enum_peer(struct rio_net *net, struct rio_mport *port,
cur_destid = next_destid;
if (rio_sport_is_active
(port, RIO_ANY_DESTID, hopcount, port_num)) {
(port, RIO_ANY_DESTID(port->sys_size), hopcount,
port_num)) {
pr_debug(
"RIO: scanning device on port %d\n",
port_num);
rio_route_add_entry(port, rdev->rswitch,
RIO_GLOBAL_TABLE,
RIO_ANY_DESTID, port_num);
RIO_GLOBAL_TABLE,
RIO_ANY_DESTID(port->sys_size),
port_num);
if (rio_enum_peer(net, port, hopcount + 1) < 0)
return -1;
@ -735,7 +754,8 @@ rio_disc_peer(struct rio_net *net, struct rio_mport *port, u16 destid,
pr_debug(
"RIO: scanning device on port %d\n",
port_num);
for (ndestid = 0; ndestid < RIO_ANY_DESTID;
for (ndestid = 0;
ndestid < RIO_ANY_DESTID(port->sys_size);
ndestid++) {
rio_route_get_entry(port, rdev->rswitch,
RIO_GLOBAL_TABLE,
@ -917,7 +937,9 @@ static void rio_build_route_tables(void)
list_for_each_entry(rdev, &rio_devices, global_list)
if (rio_is_switch(rdev))
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES; i++) {
for (i = 0;
i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
i++) {
if (rio_route_get_entry
(rdev->net->hport, rdev->rswitch, RIO_GLOBAL_TABLE,
i, &sport) < 0)
@ -981,7 +1003,8 @@ int rio_disc_mport(struct rio_mport *mport)
del_timer_sync(&rio_enum_timer);
pr_debug("done\n");
if (rio_disc_peer(net, mport, RIO_ANY_DESTID, 0) < 0) {
if (rio_disc_peer(net, mport, RIO_ANY_DESTID(mport->sys_size),
0) < 0) {
printk(KERN_INFO
"RIO: master port %d device has failed discovery\n",
mport->id);

3
drivers/rapidio/rio-sysfs.c
View File

@ -43,7 +43,8 @@ static ssize_t routes_show(struct device *dev, struct device_attribute *attr, ch
if (!rdev->rswitch)
goto out;
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES; i++) {
for (i = 0; i < RIO_MAX_ROUTE_ENTRIES(rdev->net->hport->sys_size);
i++) {
if (rdev->rswitch->route_table[i] == RIO_INVALID_ROUTE)
continue;
str +=

2
drivers/rapidio/rio.c
View File

@ -43,7 +43,7 @@ u16 rio_local_get_device_id(struct rio_mport *port)
rio_local_read_config_32(port, RIO_DID_CSR, &result);
return (RIO_GET_DID(result));
return (RIO_GET_DID(port->sys_size, result));
}
/**

9
drivers/rapidio/rio.h
View File

@ -51,10 +51,5 @@ extern struct rio_route_ops __end_rio_route_ops[];
DECLARE_RIO_ROUTE_SECTION(.rio_route_ops, \
vid, did, add_hook, get_hook)
#ifdef CONFIG_RAPIDIO_8_BIT_TRANSPORT
#define RIO_GET_DID(x) ((x & 0x00ff0000) >> 16)
#define RIO_SET_DID(x) ((x & 0x000000ff) << 16)
#else
#define RIO_GET_DID(x) (x & 0xffff)
#define RIO_SET_DID(x) (x & 0xffff)
#endif
#define RIO_GET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x00ff0000) >> 16))
#define RIO_SET_DID(size, x) (size ? (x & 0xffff) : ((x & 0x000000ff) << 16))

6
include/asm-powerpc/processor.h
View File

@ -138,6 +138,8 @@ typedef struct {
struct thread_struct {
unsigned long ksp; /* Kernel stack pointer */
unsigned long ksp_limit; /* if ksp <= ksp_limit stack overflow */
#ifdef CONFIG_PPC64
unsigned long ksp_vsid;
#endif
@ -182,11 +184,14 @@ struct thread_struct {
#define ARCH_MIN_TASKALIGN 16
#define INIT_SP (sizeof(init_stack) + (unsigned long) &init_stack)
#define INIT_SP_LIMIT \
(_ALIGN_UP(sizeof(init_thread_info), 16) + (unsigned long) &init_stack)
#ifdef CONFIG_PPC32
#define INIT_THREAD { \
.ksp = INIT_SP, \
.ksp_limit = INIT_SP_LIMIT, \
.fs = KERNEL_DS, \
.pgdir = swapper_pg_dir, \
.fpexc_mode = MSR_FE0 | MSR_FE1, \
@ -194,6 +199,7 @@ struct thread_struct {
#else
#define INIT_THREAD { \
.ksp = INIT_SP, \
.ksp_limit = INIT_SP_LIMIT, \
.regs = (struct pt_regs *)INIT_SP - 1, /* XXX bogus, I think */ \
.fs = KERNEL_DS, \
.fpr = {0}, \

0
include/asm-ppc/rio.h → include/asm-powerpc/rio.h
View File

24
include/asm-powerpc/system.h
View File

@ -204,7 +204,7 @@ extern int powersave_nap; /* set if nap mode can be used in idle loop */
* Changes the memory location '*ptr' to be val and returns
* the previous value stored there.
*/
static __inline__ unsigned long
static __always_inline unsigned long
__xchg_u32(volatile void *p, unsigned long val)
{
unsigned long prev;
@ -229,7 +229,7 @@ __xchg_u32(volatile void *p, unsigned long val)
* Changes the memory location '*ptr' to be val and returns
* the previous value stored there.
*/
static __inline__ unsigned long
static __always_inline unsigned long
__xchg_u32_local(volatile void *p, unsigned long val)
{
unsigned long prev;
@ -247,7 +247,7 @@ __xchg_u32_local(volatile void *p, unsigned long val)
}
#ifdef CONFIG_PPC64
static __inline__ unsigned long
static __always_inline unsigned long
__xchg_u64(volatile void *p, unsigned long val)
{
unsigned long prev;
@ -266,7 +266,7 @@ __xchg_u64(volatile void *p, unsigned long val)
return prev;
}
static __inline__ unsigned long
static __always_inline unsigned long
__xchg_u64_local(volatile void *p, unsigned long val)
{
unsigned long prev;
@ -290,7 +290,7 @@ __xchg_u64_local(volatile void *p, unsigned long val)
*/
extern void __xchg_called_with_bad_pointer(void);
static __inline__ unsigned long
static __always_inline unsigned long
__xchg(volatile void *ptr, unsigned long x, unsigned int size)
{
switch (size) {
@ -305,7 +305,7 @@ __xchg(volatile void *ptr, unsigned long x, unsigned int size)
return x;
}
static __inline__ unsigned long
static __always_inline unsigned long
__xchg_local(volatile void *ptr, unsigned long x, unsigned int size)
{
switch (size) {
@ -338,7 +338,7 @@ __xchg_local(volatile void *ptr, unsigned long x, unsigned int size)
*/
#define __HAVE_ARCH_CMPXCHG 1
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
{
unsigned int prev;
@ -361,7 +361,7 @@ __cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
return prev;
}
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
unsigned long new)
{
@ -384,7 +384,7 @@ __cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
}
#ifdef CONFIG_PPC64
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
{
unsigned long prev;
@ -406,7 +406,7 @@ __cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
return prev;
}
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,
unsigned long new)
{
@ -432,7 +432,7 @@ __cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,
if something tries to do an invalid cmpxchg(). */
extern void __cmpxchg_called_with_bad_pointer(void);
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
unsigned int size)
{
@ -448,7 +448,7 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
return old;
}
static __inline__ unsigned long
static __always_inline unsigned long
__cmpxchg_local(volatile void *ptr, unsigned long old, unsigned long new,
unsigned int size)
{

4
include/linux/lmb.h
View File

@ -40,7 +40,8 @@ extern struct lmb lmb;
extern void __init lmb_init(void);
extern void __init lmb_analyze(void);
extern long __init lmb_add(u64 base, u64 size);
extern long lmb_add(u64 base, u64 size);
extern long lmb_remove(u64 base, u64 size);
extern long __init lmb_reserve(u64 base, u64 size);
extern u64 __init lmb_alloc_nid(u64 size, u64 align, int nid,
u64 (*nid_range)(u64, u64, int *));
@ -53,6 +54,7 @@ extern u64 __init lmb_phys_mem_size(void);
extern u64 __init lmb_end_of_DRAM(void);
extern void __init lmb_enforce_memory_limit(u64 memory_limit);
extern int __init lmb_is_reserved(u64 addr);
extern int lmb_find(struct lmb_property *res);
extern void lmb_dump_all(void);

38
include/linux/rio.h
View File

@ -23,7 +23,6 @@
#include <linux/device.h>
#include <linux/rio_regs.h>
#define RIO_ANY_DESTID 0xff
#define RIO_NO_HOPCOUNT -1
#define RIO_INVALID_DESTID 0xffff
@ -39,11 +38,8 @@
entry is invalid (no route
exists for the device ID) */
#ifdef CONFIG_RAPIDIO_8_BIT_TRANSPORT
#define RIO_MAX_ROUTE_ENTRIES (1 << 8)
#else
#define RIO_MAX_ROUTE_ENTRIES (1 << 16)
#endif
#define RIO_MAX_ROUTE_ENTRIES(size) (size ? (1 << 16) : (1 << 8))
#define RIO_ANY_DESTID(size) (size ? 0xffff : 0xff)
#define RIO_MAX_MBOX 4
#define RIO_MAX_MSG_SIZE 0x1000
@ -149,6 +145,11 @@ struct rio_dbell {
void *dev_id;
};
enum rio_phy_type {
RIO_PHY_PARALLEL,
RIO_PHY_SERIAL,
};
/**
* struct rio_mport - RIO master port info
* @dbells: List of doorbell events
@ -163,6 +164,7 @@ struct rio_dbell {
* @id: Port ID, unique among all ports
* @index: Port index, unique among all port interfaces of the same type
* @name: Port name string
* @priv: Master port private data
*/
struct rio_mport {
struct list_head dbells; /* list of doorbell events */
@ -177,7 +179,13 @@ struct rio_mport {
unsigned char id; /* port ID, unique among all ports */
unsigned char index; /* port index, unique among all port
interfaces of the same type */
unsigned int sys_size; /* RapidIO common transport system size.
* 0 - Small size. 256 devices.
* 1 - Large size, 65536 devices.
*/
enum rio_phy_type phy_type; /* RapidIO phy type */
unsigned char name[40];
void *priv; /* Master port private data */
};
/**
@ -211,7 +219,7 @@ struct rio_switch {
u16 switchid;
u16 hopcount;
u16 destid;
u8 route_table[RIO_MAX_ROUTE_ENTRIES];
u8 *route_table;
int (*add_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
u16 table, u16 route_destid, u8 route_port);
int (*get_entry) (struct rio_mport * mport, u16 destid, u8 hopcount,
@ -229,13 +237,15 @@ struct rio_switch {
* @dsend: Callback to send a doorbell message.
*/
struct rio_ops {
int (*lcread) (int index, u32 offset, int len, u32 * data);
int (*lcwrite) (int index, u32 offset, int len, u32 data);
int (*cread) (int index, u16 destid, u8 hopcount, u32 offset, int len,
u32 * data);
int (*cwrite) (int index, u16 destid, u8 hopcount, u32 offset, int len,
u32 data);
int (*dsend) (int index, u16 destid, u16 data);
int (*lcread) (struct rio_mport *mport, int index, u32 offset, int len,
u32 *data);
int (*lcwrite) (struct rio_mport *mport, int index, u32 offset, int len,
u32 data);
int (*cread) (struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 *data);
int (*cwrite) (struct rio_mport *mport, int index, u16 destid,
u8 hopcount, u32 offset, int len, u32 data);
int (*dsend) (struct rio_mport *mport, int index, u16 destid, u16 data);
};
#define RIO_RESOURCE_MEM 0x00000100

99
lib/lmb.c
View File

@ -46,14 +46,13 @@ void lmb_dump_all(void)
#endif /* DEBUG */
}
static unsigned long __init lmb_addrs_overlap(u64 base1, u64 size1,
u64 base2, u64 size2)
static unsigned long lmb_addrs_overlap(u64 base1, u64 size1, u64 base2,
u64 size2)
{
return ((base1 < (base2 + size2)) && (base2 < (base1 + size1)));
}
static long __init lmb_addrs_adjacent(u64 base1, u64 size1,
u64 base2, u64 size2)
static long lmb_addrs_adjacent(u64 base1, u64 size1, u64 base2, u64 size2)
{
if (base2 == base1 + size1)
return 1;
@ -63,7 +62,7 @@ static long __init lmb_addrs_adjacent(u64 base1, u64 size1,
return 0;
}
static long __init lmb_regions_adjacent(struct lmb_region *rgn,
static long lmb_regions_adjacent(struct lmb_region *rgn,
unsigned long r1, unsigned long r2)
{
u64 base1 = rgn->region[r1].base;
@ -74,7 +73,7 @@ static long __init lmb_regions_adjacent(struct lmb_region *rgn,
return lmb_addrs_adjacent(base1, size1, base2, size2);
}
static void __init lmb_remove_region(struct lmb_region *rgn, unsigned long r)
static void lmb_remove_region(struct lmb_region *rgn, unsigned long r)
{
unsigned long i;
@ -86,7 +85,7 @@ static void __init lmb_remove_region(struct lmb_region *rgn, unsigned long r)
}
/* Assumption: base addr of region 1 < base addr of region 2 */
static void __init lmb_coalesce_regions(struct lmb_region *rgn,
static void lmb_coalesce_regions(struct lmb_region *rgn,
unsigned long r1, unsigned long r2)
{
rgn->region[r1].size += rgn->region[r2].size;
@ -118,7 +117,7 @@ void __init lmb_analyze(void)
lmb.memory.size += lmb.memory.region[i].size;
}
static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
static long lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
{
unsigned long coalesced = 0;
long adjacent, i;
@ -182,7 +181,7 @@ static long __init lmb_add_region(struct lmb_region *rgn, u64 base, u64 size)
return 0;
}
long __init lmb_add(u64 base, u64 size)
long lmb_add(u64 base, u64 size)
{
struct lmb_region *_rgn = &lmb.memory;
@ -194,6 +193,55 @@ long __init lmb_add(u64 base, u64 size)
}
long lmb_remove(u64 base, u64 size)
{
struct lmb_region *rgn = &(lmb.memory);
u64 rgnbegin, rgnend;
u64 end = base + size;
int i;
rgnbegin = rgnend = 0; /* supress gcc warnings */
/* Find the region where (base, size) belongs to */
for (i=0; i < rgn->cnt; i++) {
rgnbegin = rgn->region[i].base;
rgnend = rgnbegin + rgn->region[i].size;
if ((rgnbegin <= base) && (end <= rgnend))
break;
}
/* Didn't find the region */
if (i == rgn->cnt)
return -1;
/* Check to see if we are removing entire region */
if ((rgnbegin == base) && (rgnend == end)) {
lmb_remove_region(rgn, i);
return 0;
}
/* Check to see if region is matching at the front */
if (rgnbegin == base) {
rgn->region[i].base = end;
rgn->region[i].size -= size;
return 0;
}
/* Check to see if the region is matching at the end */
if (rgnend == end) {
rgn->region[i].size -= size;
return 0;
}
/*
* We need to split the entry - adjust the current one to the
* beginging of the hole and add the region after hole.
*/
rgn->region[i].size = base - rgn->region[i].base;
return lmb_add_region(rgn, end, rgnend - end);
}
long __init lmb_reserve(u64 base, u64 size)
{
struct lmb_region *_rgn = &lmb.reserved;
@ -426,3 +474,36 @@ int __init lmb_is_reserved(u64 addr)
}
return 0;
}
/*
* Given a <base, len>, find which memory regions belong to this range.
* Adjust the request and return a contiguous chunk.
*/
int lmb_find(struct lmb_property *res)
{
int i;
u64 rstart, rend;
rstart = res->base;
rend = rstart + res->size - 1;
for (i = 0; i < lmb.memory.cnt; i++) {
u64 start = lmb.memory.region[i].base;
u64 end = start + lmb.memory.region[i].size - 1;
if (start > rend)
return -1;
if ((end >= rstart) && (start < rend)) {
/* adjust the request */
if (rstart < start)
rstart = start;
if (rend > end)
rend = end;
res->base = rstart;
res->size = rend - rstart + 1;
return 0;
}
}
return -1;
}