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Commit f093182d authored by Linus Torvalds's avatar Linus Torvalds
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

parents d27ba47e 76c8e25b
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Showing with 5134 additions and 579 deletions
arch/powerpc/Kconfig
View file @ f093182d
......@@ -404,6 +404,14 @@ config CPU_FREQ_PMAC
this currently includes some models of iBook & Titanium
PowerBook.
config CPU_FREQ_PMAC64
bool "Support for some Apple G5s"
depends on CPU_FREQ && PMAC_SMU && PPC64
select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple iMac G5,
and some of the more recent desktop G5 machines as well.
config PPC601_SYNC_FIX
bool "Workarounds for PPC601 bugs"
depends on 6xx && (PPC_PREP || PPC_PMAC)
......@@ -484,6 +492,7 @@ source "fs/Kconfig.binfmt"
config FORCE_MAX_ZONEORDER
int
depends on PPC64
default "9" if PPC_64K_PAGES
default "13"
config MATH_EMULATION
......
arch/powerpc/configs/g5_defconfig
View file @ f093182d
This diff is collapsed.
arch/powerpc/kernel/misc_64.S
View file @ f093182d
......@@ -603,6 +603,76 @@ _GLOBAL(real_writeb)
blr
#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
/*
* SCOM access functions for 970 (FX only for now)
*
* unsigned long scom970_read(unsigned int address);
* void scom970_write(unsigned int address, unsigned long value);
*
* The address passed in is the 24 bits register address. This code
* is 970 specific and will not check the status bits, so you should
* know what you are doing.
*/
_GLOBAL(scom970_read)
/* interrupts off */
mfmsr r4
ori r0,r4,MSR_EE
xori r0,r0,MSR_EE
mtmsrd r0,1
/* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
* (including parity). On current CPUs they must be 0'd,
* and finally or in RW bit
*/
rlwinm r3,r3,8,0,15
ori r3,r3,0x8000
/* do the actual scom read */
sync
mtspr SPRN_SCOMC,r3
isync
mfspr r3,SPRN_SCOMD
isync
mfspr r0,SPRN_SCOMC
isync
/* XXX: fixup result on some buggy 970's (ouch ! we lost a bit, bah
* that's the best we can do). Not implemented yet as we don't use
* the scom on any of the bogus CPUs yet, but may have to be done
* ultimately
*/
/* restore interrupts */
mtmsrd r4,1
blr
_GLOBAL(scom970_write)
/* interrupts off */
mfmsr r5
ori r0,r5,MSR_EE
xori r0,r0,MSR_EE
mtmsrd r0,1
/* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
* (including parity). On current CPUs they must be 0'd.
*/
rlwinm r3,r3,8,0,15
sync
mtspr SPRN_SCOMD,r4 /* write data */
isync
mtspr SPRN_SCOMC,r3 /* write command */
isync
mfspr 3,SPRN_SCOMC
isync
/* restore interrupts */
mtmsrd r5,1
blr
/*
* Create a kernel thread
* kernel_thread(fn, arg, flags)
......
arch/powerpc/kernel/process.c
View file @ f093182d
......@@ -46,10 +46,10 @@
#include <asm/processor.h>
#include <asm/mmu.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#ifdef CONFIG_PPC64
#include <asm/firmware.h>
#include <asm/time.h>
#include <asm/machdep.h>
#endif
extern unsigned long _get_SP(void);
......@@ -203,10 +203,8 @@ int dump_spe(struct pt_regs *regs, elf_vrregset_t *evrregs)
int set_dabr(unsigned long dabr)
{
#ifdef CONFIG_PPC64
if (ppc_md.set_dabr)
return ppc_md.set_dabr(dabr);
#endif
mtspr(SPRN_DABR, dabr);
return 0;
......
arch/powerpc/kernel/prom.c
View file @ f093182d
......@@ -1974,14 +1974,29 @@ EXPORT_SYMBOL(get_property);
/*
* Add a property to a node
*/
void prom_add_property(struct device_node* np, struct property* prop)
int prom_add_property(struct device_node* np, struct property* prop)
{
struct property **next = &np->properties;
struct property **next;
prop->next = NULL;
while (*next)
write_lock(&devtree_lock);
next = &np->properties;
while (*next) {
if (strcmp(prop->name, (*next)->name) == 0) {
/* duplicate ! don't insert it */
write_unlock(&devtree_lock);
return -1;
}
next = &(*next)->next;
}
*next = prop;
write_unlock(&devtree_lock);
/* try to add to proc as well if it was initialized */
if (np->pde)
proc_device_tree_add_prop(np->pde, prop);
return 0;
}
/* I quickly hacked that one, check against spec ! */
......
arch/powerpc/kernel/prom_init.c
View file @ f093182d
......@@ -403,19 +403,19 @@ static int __init prom_next_node(phandle *nodep)
}
}
static int __init prom_getprop(phandle node, const char *pname,
static int inline prom_getprop(phandle node, const char *pname,
void *value, size_t valuelen)
{
return call_prom("getprop", 4, 1, node, ADDR(pname),
(u32)(unsigned long) value, (u32) valuelen);
}
static int __init prom_getproplen(phandle node, const char *pname)
static int inline prom_getproplen(phandle node, const char *pname)
{
return call_prom("getproplen", 2, 1, node, ADDR(pname));
}
static int __init prom_setprop(phandle node, const char *pname,
static int inline prom_setprop(phandle node, const char *pname,
void *value, size_t valuelen)
{
return call_prom("setprop", 4, 1, node, ADDR(pname),
......@@ -1408,8 +1408,9 @@ static int __init prom_find_machine_type(void)
struct prom_t *_prom = &RELOC(prom);
char compat[256];
int len, i = 0;
#ifdef CONFIG_PPC64
phandle rtas;
#endif
len = prom_getprop(_prom->root, "compatible",
compat, sizeof(compat)-1);
if (len > 0) {
......@@ -1872,7 +1873,7 @@ static void __init fixup_device_tree(void)
if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
== PROM_ERROR)
return;
if (u3_rev != 0x35 && u3_rev != 0x37)
if (u3_rev < 0x35 || u3_rev > 0x39)
return;
/* does it need fixup ? */
if (prom_getproplen(i2c, "interrupts") > 0)
......
arch/powerpc/kernel/rtas.c
View file @ f093182d
......@@ -17,6 +17,7 @@
#include <linux/spinlock.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/delay.h>
#include <asm/prom.h>
#include <asm/rtas.h>
......@@ -83,7 +84,7 @@ void call_rtas_display_status_delay(unsigned char c)
while (width-- > 0)
call_rtas_display_status(' ');
width = 16;
udelay(500000);
mdelay(500);
pending_newline = 1;
} else {
if (pending_newline) {
......@@ -608,7 +609,6 @@ asmlinkage int ppc_rtas(struct rtas_args __user *uargs)
return 0;
}
#ifdef CONFIG_SMP
/* This version can't take the spinlock, because it never returns */
struct rtas_args rtas_stop_self_args = {
......@@ -633,7 +633,6 @@ void rtas_stop_self(void)
panic("Alas, I survived.\n");
}
#endif
/*
* Call early during boot, before mem init or bootmem, to retreive the RTAS
......
arch/powerpc/kernel/setup-common.c
View file @ f093182d
......@@ -405,6 +405,46 @@ static int __init set_preferred_console(void)
console_initcall(set_preferred_console);
#endif /* CONFIG_PPC_MULTIPLATFORM */
void __init check_for_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
unsigned long *prop;
DBG(" -> check_for_initrd()\n");
if (of_chosen) {
prop = (unsigned long *)get_property(of_chosen,
"linux,initrd-start", NULL);
if (prop != NULL) {
initrd_start = (unsigned long)__va(*prop);
prop = (unsigned long *)get_property(of_chosen,
"linux,initrd-end", NULL);
if (prop != NULL) {
initrd_end = (unsigned long)__va(*prop);
initrd_below_start_ok = 1;
} else
initrd_start = 0;
}
}
/* If we were passed an initrd, set the ROOT_DEV properly if the values
* look sensible. If not, clear initrd reference.
*/
if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
initrd_end > initrd_start)
ROOT_DEV = Root_RAM0;
else {
printk("Bogus initrd %08lx %08lx\n", initrd_start, initrd_end);
initrd_start = initrd_end = 0;
}
if (initrd_start)
printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
DBG(" <- check_for_initrd()\n");
#endif /* CONFIG_BLK_DEV_INITRD */
}
#ifdef CONFIG_SMP
/**
......
arch/powerpc/kernel/setup_32.c
View file @ f093182d
......@@ -286,6 +286,7 @@ void __init setup_arch(char **cmdline_p)
loops_per_jiffy = 500000000 / HZ;
unflatten_device_tree();
check_for_initrd();
finish_device_tree();
smp_setup_cpu_maps();
......
arch/powerpc/kernel/setup_64.c
View file @ f093182d
......@@ -41,7 +41,6 @@
#include <asm/elf.h>
#include <asm/machdep.h>
#include <asm/paca.h>
#include <asm/ppcdebug.h>
#include <asm/time.h>
#include <asm/cputable.h>
#include <asm/sections.h>
......@@ -60,6 +59,7 @@
#include <asm/firmware.h>
#include <asm/systemcfg.h>
#include <asm/xmon.h>
#include <asm/udbg.h>
#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
......@@ -243,12 +243,6 @@ void __init early_setup(unsigned long dt_ptr)
DBG(" -> early_setup()\n");
/*
* Fill the default DBG level (do we want to keep
* that old mecanism around forever ?)
*/
ppcdbg_initialize();
/*
* Do early initializations using the flattened device
* tree, like retreiving the physical memory map or
......@@ -401,43 +395,6 @@ static void __init initialize_cache_info(void)
DBG(" <- initialize_cache_info()\n");
}
static void __init check_for_initrd(void)
{
#ifdef CONFIG_BLK_DEV_INITRD
u64 *prop;
DBG(" -> check_for_initrd()\n");
if (of_chosen) {
prop = (u64 *)get_property(of_chosen,
"linux,initrd-start", NULL);
if (prop != NULL) {
initrd_start = (unsigned long)__va(*prop);
prop = (u64 *)get_property(of_chosen,
"linux,initrd-end", NULL);
if (prop != NULL) {
initrd_end = (unsigned long)__va(*prop);
initrd_below_start_ok = 1;
} else
initrd_start = 0;
}
}
/* If we were passed an initrd, set the ROOT_DEV properly if the values
* look sensible. If not, clear initrd reference.
*/
if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
initrd_end > initrd_start)
ROOT_DEV = Root_RAM0;
else
initrd_start = initrd_end = 0;
if (initrd_start)
printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
DBG(" <- check_for_initrd()\n");
#endif /* CONFIG_BLK_DEV_INITRD */
}
/*
* Do some initial setup of the system. The parameters are those which
......@@ -521,7 +478,6 @@ void __init setup_system(void)
printk("-----------------------------------------------------\n");
printk("ppc64_pft_size = 0x%lx\n", ppc64_pft_size);
printk("ppc64_debug_switch = 0x%lx\n", ppc64_debug_switch);
printk("ppc64_interrupt_controller = 0x%ld\n", ppc64_interrupt_controller);
printk("systemcfg = 0x%p\n", systemcfg);
printk("systemcfg->platform = 0x%x\n", systemcfg->platform);
......
arch/powerpc/kernel/signal_32.c
View file @ f093182d
......@@ -44,7 +44,6 @@
#include <asm/cacheflush.h>
#ifdef CONFIG_PPC64
#include "ppc32.h"
#include <asm/ppcdebug.h>
#include <asm/unistd.h>
#include <asm/vdso.h>
#else
......
arch/powerpc/kernel/signal_64.c
View file @ f093182d
......@@ -33,7 +33,6 @@
#include <asm/ucontext.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/ppcdebug.h>
#include <asm/unistd.h>
#include <asm/cacheflush.h>
#include <asm/vdso.h>
......
arch/powerpc/kernel/smp.c
View file @ f093182d
......@@ -40,7 +40,6 @@
#include <asm/prom.h>
#include <asm/smp.h>
#include <asm/time.h>
#include <asm/xmon.h>
#include <asm/machdep.h>
#include <asm/cputable.h>
#include <asm/system.h>
......
arch/powerpc/kernel/time.c
View file @ f093182d
......@@ -61,6 +61,7 @@
#include <asm/prom.h>
#include <asm/irq.h>
#include <asm/div64.h>
#include <asm/smp.h>
#ifdef CONFIG_PPC64
#include <asm/systemcfg.h>
#include <asm/firmware.h>
......@@ -119,10 +120,6 @@ static unsigned adjusting_time = 0;
unsigned long ppc_proc_freq;
unsigned long ppc_tb_freq;
#ifdef CONFIG_PPC32 /* XXX for now */
#define boot_cpuid 0
#endif
u64 tb_last_jiffy __cacheline_aligned_in_smp;
unsigned long tb_last_stamp;
......
arch/powerpc/kernel/traps.c
View file @ f093182d
......@@ -39,7 +39,6 @@
#include <asm/io.h>
#include <asm/machdep.h>
#include <asm/rtas.h>
#include <asm/xmon.h>
#include <asm/pmc.h>
#ifdef CONFIG_PPC32
#include <asm/reg.h>
......@@ -748,22 +747,12 @@ static int check_bug_trap(struct pt_regs *regs)
return 0;
if (bug->line & BUG_WARNING_TRAP) {
/* this is a WARN_ON rather than BUG/BUG_ON */
#ifdef CONFIG_XMON
xmon_printf(KERN_ERR "Badness in %s at %s:%ld\n",
bug->function, bug->file,
bug->line & ~BUG_WARNING_TRAP);
#endif /* CONFIG_XMON */
printk(KERN_ERR "Badness in %s at %s:%ld\n",
bug->function, bug->file,
bug->line & ~BUG_WARNING_TRAP);
dump_stack();
return 1;
}
#ifdef CONFIG_XMON
xmon_printf(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
bug->function, bug->file, bug->line);
xmon(regs);
#endif /* CONFIG_XMON */
printk(KERN_CRIT "kernel BUG in %s at %s:%ld!\n",
bug->function, bug->file, bug->line);
......
arch/powerpc/lib/locks.c
View file @ f093182d
......@@ -23,6 +23,7 @@
#if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
#include <asm/hvcall.h>
#include <asm/iseries/hv_call.h>
#include <asm/smp.h>
void __spin_yield(raw_spinlock_t *lock)
{
......
arch/powerpc/mm/fault.c
View file @ f093182d
......@@ -389,5 +389,22 @@ void bad_page_fault(struct pt_regs *regs, unsigned long address, int sig)
}
/* kernel has accessed a bad area */
printk(KERN_ALERT "Unable to handle kernel paging request for ");
switch (regs->trap) {
case 0x300:
case 0x380:
printk("data at address 0x%08lx\n", regs->dar);
break;
case 0x400:
case 0x480:
printk("instruction fetch\n");
break;
default:
printk("unknown fault\n");
}
printk(KERN_ALERT "Faulting instruction address: 0x%08lx\n",
regs->nip);
die("Kernel access of bad area", regs, sig);
}
arch/powerpc/mm/hash_utils_64.c
View file @ f093182d
......@@ -33,7 +33,6 @@
#include <linux/init.h>
#include <linux/signal.h>
#include <asm/ppcdebug.h>
#include <asm/processor.h>
#include <asm/pgtable.h>
#include <asm/mmu.h>
......@@ -409,12 +408,6 @@ void __init htab_initialize(void)
htab_size_bytes = htab_get_table_size();
pteg_count = htab_size_bytes >> 7;
/* For debug, make the HTAB 1/8 as big as it normally would be. */
ifppcdebug(PPCDBG_HTABSIZE) {
pteg_count >>= 3;
htab_size_bytes = pteg_count << 7;
}
htab_hash_mask = pteg_count - 1;
if (systemcfg->platform & PLATFORM_LPAR) {
......@@ -514,6 +507,9 @@ unsigned int hash_page_do_lazy_icache(unsigned int pp, pte_t pte, int trap)
{
struct page *page;
if (!pfn_valid(pte_pfn(pte)))
return pp;
page = pte_page(pte);
/* page is dirty */
......
arch/powerpc/mm/init_64.c
View file @ f093182d
......@@ -57,7 +57,6 @@
#include <asm/processor.h>
#include <asm/mmzone.h>
#include <asm/cputable.h>
#include <asm/ppcdebug.h>
#include <asm/sections.h>
#include <asm/system.h>
#include <asm/iommu.h>
......
arch/powerpc/mm/mem.c
View file @ f093182d
......@@ -358,7 +358,7 @@ void __init mem_init(void)
}
codesize = (unsigned long)&_sdata - (unsigned long)&_stext;
datasize = (unsigned long)&__init_begin - (unsigned long)&_sdata;
datasize = (unsigned long)&_edata - (unsigned long)&_sdata;
initsize = (unsigned long)&__init_end - (unsigned long)&__init_begin;
bsssize = (unsigned long)&__bss_stop - (unsigned long)&__bss_start;
......
arch/powerpc/mm/numa.c
View file @ f093182d
......@@ -21,6 +21,7 @@
#include <asm/machdep.h>
#include <asm/abs_addr.h>
#include <asm/system.h>
#include <asm/smp.h>
static int numa_enabled = 1;
......
arch/powerpc/mm/pgtable_64.c
View file @ f093182d
......@@ -59,7 +59,6 @@
#include <asm/processor.h>
#include <asm/mmzone.h>
#include <asm/cputable.h>
#include <asm/ppcdebug.h>
#include <asm/sections.h>
#include <asm/system.h>
#include <asm/iommu.h>
......
arch/powerpc/oprofile/op_model_power4.c
View file @ f093182d
......@@ -17,6 +17,7 @@
#include <asm/systemcfg.h>
#include <asm/rtas.h>
#include <asm/oprofile_impl.h>
#include <asm/reg.h>
#define dbg(args...)
......@@ -81,6 +82,26 @@ static void power4_reg_setup(struct op_counter_config *ctr,
extern void ppc64_enable_pmcs(void);
/*
* Older CPUs require the MMCRA sample bit to be always set, but newer
* CPUs only want it set for some groups. Eventually we will remove all
* knowledge of this bit in the kernel, oprofile userspace should be
* setting it when required.
*
* In order to keep current installations working we force the bit for
* those older CPUs. Once everyone has updated their oprofile userspace we
* can remove this hack.
*/
static inline int mmcra_must_set_sample(void)
{
if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p) ||
__is_processor(PV_970) || __is_processor(PV_970FX) ||
__is_processor(PV_970MP))
return 1;
return 0;
}
static void power4_cpu_setup(void *unused)
{
unsigned int mmcr0 = mmcr0_val;
......@@ -98,7 +119,8 @@ static void power4_cpu_setup(void *unused)
mtspr(SPRN_MMCR1, mmcr1_val);
mmcra |= MMCRA_SAMPLE_ENABLE;
if (mmcra_must_set_sample())
mmcra |= MMCRA_SAMPLE_ENABLE;
mtspr(SPRN_MMCRA, mmcra);
dbg("setup on cpu %d, mmcr0 %lx\n", smp_processor_id(),
......
arch/powerpc/platforms/iseries/irq.c
View file @ f093182d
......@@ -35,7 +35,6 @@
#include <linux/irq.h>
#include <linux/spinlock.h>
#include <asm/ppcdebug.h>
#include <asm/iseries/hv_types.h>
#include <asm/iseries/hv_lp_event.h>
#include <asm/iseries/hv_call_xm.h>
......@@ -227,8 +226,6 @@ static void iSeries_enable_IRQ(unsigned int irq)
/* Unmask secondary INTA */
mask = 0x80000000;
HvCallPci_unmaskInterrupts(bus, subBus, deviceId, mask);
PPCDBG(PPCDBG_BUSWALK, "iSeries_enable_IRQ 0x%02X.%02X.%02X 0x%04X\n",
bus, subBus, deviceId, irq);
}
/* This is called by iSeries_activate_IRQs */
......@@ -310,8 +307,6 @@ static void iSeries_disable_IRQ(unsigned int irq)
/* Mask secondary INTA */
mask = 0x80000000;
HvCallPci_maskInterrupts(bus, subBus, deviceId, mask);
PPCDBG(PPCDBG_BUSWALK, "iSeries_disable_IRQ 0x%02X.%02X.%02X 0x%04X\n",
bus, subBus, deviceId, irq);
}
/*
......
arch/powerpc/platforms/iseries/pci.c
View file @ f093182d
......@@ -32,7 +32,6 @@
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/pci-bridge.h>
#include <asm/ppcdebug.h>
#include <asm/iommu.h>
#include <asm/abs_addr.h>
......@@ -207,10 +206,6 @@ static struct device_node *build_device_node(HvBusNumber Bus,
struct device_node *node;
struct pci_dn *pdn;
PPCDBG(PPCDBG_BUSWALK,
"-build_device_node 0x%02X.%02X.%02X Function: %02X\n",
Bus, SubBus, AgentId, Function);
node = kmalloc(sizeof(struct device_node), GFP_KERNEL);
if (node == NULL)
return NULL;
......@@ -243,8 +238,6 @@ unsigned long __init find_and_init_phbs(void)
struct pci_controller *phb;
HvBusNumber bus;
PPCDBG(PPCDBG_BUSWALK, "find_and_init_phbs Entry\n");
/* Check all possible buses. */
for (bus = 0; bus < 256; bus++) {
int ret = HvCallXm_testBus(bus);
......@@ -261,9 +254,6 @@ unsigned long __init find_and_init_phbs(void)
phb->last_busno = bus;
phb->ops = &iSeries_pci_ops;
PPCDBG(PPCDBG_BUSWALK, "PCI:Create iSeries pci_controller(%p), Bus: %04X\n",
phb, bus);
/* Find and connect the devices. */
scan_PHB_slots(phb);
}
......@@ -285,11 +275,9 @@ unsigned long __init find_and_init_phbs(void)
*/
void iSeries_pcibios_init(void)
{
PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Entry.\n");
iomm_table_initialize();
find_and_init_phbs();
io_page_mask = -1;
PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_init Exit.\n");
}
/*
......@@ -301,8 +289,6 @@ void __init iSeries_pci_final_fixup(void)
struct device_node *node;
int DeviceCount = 0;
PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup Entry.\n");
/* Fix up at the device node and pci_dev relationship */
mf_display_src(0xC9000100);
......@@ -316,9 +302,6 @@ void __init iSeries_pci_final_fixup(void)
++DeviceCount;
pdev->sysdata = (void *)node;
PCI_DN(node)->pcidev = pdev;
PPCDBG(PPCDBG_BUSWALK,
"pdev 0x%p <==> DevNode 0x%p\n",
pdev, node);
allocate_device_bars(pdev);
iSeries_Device_Information(pdev, DeviceCount);
iommu_devnode_init_iSeries(node);
......@@ -333,13 +316,10 @@ void __init iSeries_pci_final_fixup(void)
void pcibios_fixup_bus(struct pci_bus *PciBus)
{
PPCDBG(PPCDBG_BUSWALK, "iSeries_pcibios_fixup_bus(0x%04X) Entry.\n",
PciBus->number);
}
void pcibios_fixup_resources(struct pci_dev *pdev)
{
PPCDBG(PPCDBG_BUSWALK, "fixup_resources pdev %p\n", pdev);
}
/*
......@@ -401,9 +381,6 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
printk("found device at bus %d idsel %d func %d (AgentId %x)\n",
bus, IdSel, Function, AgentId);
/* Connect EADs: 0x18.00.12 = 0x00 */
PPCDBG(PPCDBG_BUSWALK,
"PCI:Connect EADs: 0x%02X.%02X.%02X\n",
bus, SubBus, AgentId);
HvRc = HvCallPci_getBusUnitInfo(bus, SubBus, AgentId,
iseries_hv_addr(BridgeInfo),
sizeof(struct HvCallPci_BridgeInfo));
......@@ -414,14 +391,6 @@ static void scan_EADS_bridge(HvBusNumber bus, HvSubBusNumber SubBus,
BridgeInfo->maxAgents,
BridgeInfo->maxSubBusNumber,
BridgeInfo->logicalSlotNumber);
PPCDBG(PPCDBG_BUSWALK,
"PCI: BridgeInfo, Type:0x%02X, SubBus:0x%02X, MaxAgents:0x%02X, MaxSubBus: 0x%02X, LSlot: 0x%02X\n",
BridgeInfo->busUnitInfo.deviceType,
BridgeInfo->subBusNumber,
BridgeInfo->maxAgents,
BridgeInfo->maxSubBusNumber,
BridgeInfo->logicalSlotNumber);
if (BridgeInfo->busUnitInfo.deviceType ==
HvCallPci_BridgeDevice) {
/* Scan_Bridge_Slot...: 0x18.00.12 */
......@@ -454,9 +423,6 @@ static int scan_bridge_slot(HvBusNumber Bus,
/* iSeries_allocate_IRQ.: 0x18.00.12(0xA3) */
Irq = iSeries_allocate_IRQ(Bus, 0, EADsIdSel);
PPCDBG(PPCDBG_BUSWALK,
"PCI:- allocate and assign IRQ 0x%02X.%02X.%02X = 0x%02X\n",
Bus, 0, EADsIdSel, Irq);
/*
* Connect all functions of any device found.
......@@ -482,9 +448,6 @@ static int scan_bridge_slot(HvBusNumber Bus,
printk("read vendor ID: %x\n", VendorId);
/* FoundDevice: 0x18.28.10 = 0x12AE */
PPCDBG(PPCDBG_BUSWALK,
"PCI:- FoundDevice: 0x%02X.%02X.%02X = 0x%04X, irq %d\n",
Bus, SubBus, AgentId, VendorId, Irq);
HvRc = HvCallPci_configStore8(Bus, SubBus, AgentId,
PCI_INTERRUPT_LINE, Irq);
if (HvRc != 0)
......
arch/powerpc/platforms/iseries/setup.c
View file @ f093182d
......@@ -71,8 +71,6 @@ extern void hvlog(char *fmt, ...);
#endif
/* Function Prototypes */
extern void ppcdbg_initialize(void);
static void build_iSeries_Memory_Map(void);
static void iseries_shared_idle(void);
static void iseries_dedicated_idle(void);
......@@ -309,8 +307,6 @@ static void __init iSeries_init_early(void)
ppc64_firmware_features = FW_FEATURE_ISERIES;
ppcdbg_initialize();
ppc64_interrupt_controller = IC_ISERIES;
#if defined(CONFIG_BLK_DEV_INITRD)
......
arch/powerpc/platforms/iseries/smp.c
View file @ f093182d
......@@ -40,7 +40,6 @@
#include <asm/paca.h>
#include <asm/iseries/hv_call.h>
#include <asm/time.h>
#include <asm/ppcdebug.h>
#include <asm/machdep.h>
#include <asm/cputable.h>
#include <asm/system.h>
......
arch/powerpc/platforms/powermac/Makefile
View file @ f093182d
obj-y += pic.o setup.o time.o feature.o pci.o \
sleep.o low_i2c.o cache.o
obj-$(CONFIG_PMAC_BACKLIGHT) += backlight.o
obj-$(CONFIG_CPU_FREQ_PMAC) += cpufreq.o
obj-$(CONFIG_CPU_FREQ_PMAC) += cpufreq_32.o
obj-$(CONFIG_CPU_FREQ_PMAC64) += cpufreq_64.o
obj-$(CONFIG_NVRAM) += nvram.o
# ppc64 pmac doesn't define CONFIG_NVRAM but needs nvram stuff
obj-$(CONFIG_PPC64) += nvram.o
......
arch/powerpc/platforms/powermac/cpufreq.c → arch/powerpc/platforms/powermac/cpufreq_32.c
View file @ f093182d
......@@ -397,18 +397,16 @@ static int pmac_cpufreq_target( struct cpufreq_policy *policy,
unsigned int relation)
{
unsigned int newstate = 0;
int rc;
if (cpufreq_frequency_table_target(policy, pmac_cpu_freqs,
target_freq, relation, &newstate))
return -EINVAL;
return do_set_cpu_speed(newstate, 1);
}
rc = do_set_cpu_speed(newstate, 1);
unsigned int pmac_get_one_cpufreq(int i)
{
/* Supports only one CPU for now */
return (i == 0) ? cur_freq : 0;
ppc_proc_freq = cur_freq * 1000ul;
return rc;
}
static int pmac_cpufreq_cpu_init(struct cpufreq_policy *policy)
......@@ -474,6 +472,8 @@ static int pmac_cpufreq_resume(struct cpufreq_policy *policy)
do_set_cpu_speed(sleep_freq == low_freq ?
CPUFREQ_LOW : CPUFREQ_HIGH, 0);
ppc_proc_freq = cur_freq * 1000ul;
no_schedule = 0;
return 0;
}
......@@ -547,7 +547,7 @@ static int pmac_cpufreq_init_MacRISC3(struct device_node *cpunode)
*/
if (low_freq < 98000000)
low_freq = 101000000;
/* Convert those to CPU core clocks */
low_freq = (low_freq * (*ratio)) / 2000;
hi_freq = (hi_freq * (*ratio)) / 2000;
......@@ -714,6 +714,7 @@ static int __init pmac_cpufreq_setup(void)
pmac_cpu_freqs[CPUFREQ_LOW].frequency = low_freq;
pmac_cpu_freqs[CPUFREQ_HIGH].frequency = hi_freq;
ppc_proc_freq = cur_freq * 1000ul;
printk(KERN_INFO "Registering PowerMac CPU frequency driver\n");
printk(KERN_INFO "Low: %d Mhz, High: %d Mhz, Boot: %d Mhz\n",
......
arch/powerpc/platforms/powermac/cpufreq_64.c 0 → 100644
View file @ f093182d
/*
* Copyright (C) 2002 - 2005 Benjamin Herrenschmidt <benh@kernel.crashing.org>
* and Markus Demleitner <msdemlei@cl.uni-heidelberg.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* This driver adds basic cpufreq support for SMU & 970FX based G5 Macs,
* that is iMac G5 and latest single CPU desktop.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/cpufreq.h>
#include <linux/init.h>
#include <linux/completion.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/irq.h>
#include <asm/sections.h>
#include <asm/cputable.h>
#include <asm/time.h>
#include <asm/smu.h>
#undef DEBUG
#ifdef DEBUG
#define DBG(fmt...) printk(fmt)
#else
#define DBG(fmt...)
#endif
/* see 970FX user manual */
#define SCOM_PCR 0x0aa001 /* PCR scom addr */
#define PCR_HILO_SELECT 0x80000000U /* 1 = PCR, 0 = PCRH */
#define PCR_SPEED_FULL 0x00000000U /* 1:1 speed value */
#define PCR_SPEED_HALF 0x00020000U /* 1:2 speed value */
#define PCR_SPEED_QUARTER 0x00040000U /* 1:4 speed value */
#define PCR_SPEED_MASK 0x000e0000U /* speed mask */
#define PCR_SPEED_SHIFT 17
#define PCR_FREQ_REQ_VALID 0x00010000U /* freq request valid */
#define PCR_VOLT_REQ_VALID 0x00008000U /* volt request valid */
#define PCR_TARGET_TIME_MASK 0x00006000U /* target time */
#define PCR_STATLAT_MASK 0x00001f00U /* STATLAT value */
#define PCR_SNOOPLAT_MASK 0x000000f0U /* SNOOPLAT value */
#define PCR_SNOOPACC_MASK 0x0000000fU /* SNOOPACC value */
#define SCOM_PSR 0x408001 /* PSR scom addr */
/* warning: PSR is a 64 bits register */
#define PSR_CMD_RECEIVED 0x2000000000000000U /* command received */
#define PSR_CMD_COMPLETED 0x1000000000000000U /* command completed */
#define PSR_CUR_SPEED_MASK 0x0300000000000000U /* current speed */
#define PSR_CUR_SPEED_SHIFT (56)
/*
* The G5 only supports two frequencies (Quarter speed is not supported)
*/
#define CPUFREQ_HIGH 0
#define CPUFREQ_LOW 1
static struct cpufreq_frequency_table g5_cpu_freqs[] = {
{CPUFREQ_HIGH, 0},
{CPUFREQ_LOW, 0},
{0, CPUFREQ_TABLE_END},
};
static struct freq_attr* g5_cpu_freqs_attr[] = {
&cpufreq_freq_attr_scaling_available_freqs,
NULL,
};
/* Power mode data is an array of the 32 bits PCR values to use for
* the various frequencies, retreived from the device-tree
*/
static u32 *g5_pmode_data;
static int g5_pmode_max;
static int g5_pmode_cur;
static DECLARE_MUTEX(g5_switch_mutex);
static struct smu_sdbp_fvt *g5_fvt_table; /* table of op. points */
static int g5_fvt_count; /* number of op. points */
static int g5_fvt_cur; /* current op. point */
/* ----------------- real hardware interface */
static void g5_switch_volt(int speed_mode)
{
struct smu_simple_cmd cmd;
DECLARE_COMPLETION(comp);
smu_queue_simple(&cmd, SMU_CMD_POWER_COMMAND, 8, smu_done_complete,
&comp, 'V', 'S', 'L', 'E', 'W',
0xff, g5_fvt_cur+1, speed_mode);
wait_for_completion(&comp);
}
static int g5_switch_freq(int speed_mode)
{
struct cpufreq_freqs freqs;
int to;
if (g5_pmode_cur == speed_mode)
return 0;
down(&g5_switch_mutex);
freqs.old = g5_cpu_freqs[g5_pmode_cur].frequency;
freqs.new = g5_cpu_freqs[speed_mode].frequency;
freqs.cpu = 0;
cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
/* If frequency is going up, first ramp up the voltage */
if (speed_mode < g5_pmode_cur)
g5_switch_volt(speed_mode);
/* Clear PCR high */
scom970_write(SCOM_PCR, 0);
/* Clear PCR low */
scom970_write(SCOM_PCR, PCR_HILO_SELECT | 0);
/* Set PCR low */
scom970_write(SCOM_PCR, PCR_HILO_SELECT |
g5_pmode_data[speed_mode]);
/* Wait for completion */
for (to = 0; to < 10; to++) {
unsigned long psr = scom970_read(SCOM_PSR);
if ((psr & PSR_CMD_RECEIVED) == 0 &&
(((psr >> PSR_CUR_SPEED_SHIFT) ^
(g5_pmode_data[speed_mode] >> PCR_SPEED_SHIFT)) & 0x3)
== 0)
break;
if (psr & PSR_CMD_COMPLETED)
break;
udelay(100);
}
/* If frequency is going down, last ramp the voltage */
if (speed_mode > g5_pmode_cur)
g5_switch_volt(speed_mode);
g5_pmode_cur = speed_mode;
ppc_proc_freq = g5_cpu_freqs[speed_mode].frequency * 1000ul;
cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
up(&g5_switch_mutex);
return 0;
}
static int g5_query_freq(void)
{
unsigned long psr = scom970_read(SCOM_PSR);
int i;
for (i = 0; i <= g5_pmode_max; i++)
if ((((psr >> PSR_CUR_SPEED_SHIFT) ^
(g5_pmode_data[i] >> PCR_SPEED_SHIFT)) & 0x3) == 0)
break;
return i;
}
/* ----------------- cpufreq bookkeeping */
static int g5_cpufreq_verify(struct cpufreq_policy *policy)
{
return cpufreq_frequency_table_verify(policy, g5_cpu_freqs);
}
static int g5_cpufreq_target(struct cpufreq_policy *policy,
unsigned int target_freq, unsigned int relation)
{
unsigned int newstate = 0;
if (cpufreq_frequency_table_target(policy, g5_cpu_freqs,
target_freq, relation, &newstate))
return -EINVAL;
return g5_switch_freq(newstate);
}
static unsigned int g5_cpufreq_get_speed(unsigned int cpu)
{
return g5_cpu_freqs[g5_pmode_cur].frequency;
}
static int g5_cpufreq_cpu_init(struct cpufreq_policy *policy)
{
if (policy->cpu != 0)
return -ENODEV;
policy->governor = CPUFREQ_DEFAULT_GOVERNOR;
policy->cpuinfo.transition_latency = CPUFREQ_ETERNAL;
policy->cur = g5_cpu_freqs[g5_query_freq()].frequency;
cpufreq_frequency_table_get_attr(g5_cpu_freqs, policy->cpu);
return cpufreq_frequency_table_cpuinfo(policy,
g5_cpu_freqs);
}
static struct cpufreq_driver g5_cpufreq_driver = {
.name = "powermac",
.owner = THIS_MODULE,
.flags = CPUFREQ_CONST_LOOPS,
.init = g5_cpufreq_cpu_init,
.verify = g5_cpufreq_verify,
.target = g5_cpufreq_target,
.get = g5_cpufreq_get_speed,
.attr = g5_cpu_freqs_attr,
};
static int __init g5_cpufreq_init(void)
{
struct device_node *cpunode;
unsigned int psize, ssize;
struct smu_sdbp_header *shdr;
unsigned long max_freq;
u32 *valp;
int rc = -ENODEV;
/* Look for CPU and SMU nodes */
cpunode = of_find_node_by_type(NULL, "cpu");
if (!cpunode) {
DBG("No CPU node !\n");
return -ENODEV;
}
/* Check 970FX for now */
valp = (u32 *)get_property(cpunode, "cpu-version", NULL);
if (!valp) {
DBG("No cpu-version property !\n");
goto bail_noprops;
}
if (((*valp) >> 16) != 0x3c) {
DBG("Wrong CPU version: %08x\n", *valp);
goto bail_noprops;
}
/* Look for the powertune data in the device-tree */
g5_pmode_data = (u32 *)get_property(cpunode, "power-mode-data",&psize);
if (!g5_pmode_data) {
DBG("No power-mode-data !\n");
goto bail_noprops;
}
g5_pmode_max = psize / sizeof(u32) - 1;
/* Look for the FVT table */
shdr = smu_get_sdb_partition(SMU_SDB_FVT_ID, NULL);
if (!shdr)
goto bail_noprops;
g5_fvt_table = (struct smu_sdbp_fvt *)&shdr[1];
ssize = (shdr->len * sizeof(u32)) - sizeof(struct smu_sdbp_header);
g5_fvt_count = ssize / sizeof(struct smu_sdbp_fvt);
g5_fvt_cur = 0;
/* Sanity checking */
if (g5_fvt_count < 1 || g5_pmode_max < 1)
goto bail_noprops;
/*
* From what I see, clock-frequency is always the maximal frequency.
* The current driver can not slew sysclk yet, so we really only deal
* with powertune steps for now. We also only implement full freq and
* half freq in this version. So far, I haven't yet seen a machine
* supporting anything else.
*/
valp = (u32 *)get_property(cpunode, "clock-frequency", NULL);
if (!valp)
return -ENODEV;
max_freq = (*valp)/1000;
g5_cpu_freqs[0].frequency = max_freq;
g5_cpu_freqs[1].frequency = max_freq/2;
/* Check current frequency */
g5_pmode_cur = g5_query_freq();
if (g5_pmode_cur > 1)
/* We don't support anything but 1:1 and 1:2, fixup ... */
g5_pmode_cur = 1;
/* Force apply current frequency to make sure everything is in
* sync (voltage is right for example). Firmware may leave us with
* a strange setting ...
*/
g5_switch_freq(g5_pmode_cur);
printk(KERN_INFO "Registering G5 CPU frequency driver\n");
printk(KERN_INFO "Low: %d Mhz, High: %d Mhz, Cur: %d MHz\n",
g5_cpu_freqs[1].frequency/1000,
g5_cpu_freqs[0].frequency/1000,
g5_cpu_freqs[g5_pmode_cur].frequency/1000);
rc = cpufreq_register_driver(&g5_cpufreq_driver);
/* We keep the CPU node on hold... hopefully, Apple G5 don't have
* hotplug CPU with a dynamic device-tree ...
*/
return rc;
bail_noprops:
of_node_put(cpunode);
return rc;
}
module_init(g5_cpufreq_init);
MODULE_LICENSE("GPL");
arch/powerpc/platforms/powermac/setup.c
View file @ f093182d
......@@ -193,18 +193,6 @@ static void pmac_show_cpuinfo(struct seq_file *m)
pmac_newworld ? "NewWorld" : "OldWorld");
}
static void pmac_show_percpuinfo(struct seq_file *m, int i)
{
#ifdef CONFIG_CPU_FREQ_PMAC
extern unsigned int pmac_get_one_cpufreq(int i);
unsigned int freq = pmac_get_one_cpufreq(i);
if (freq != 0) {
seq_printf(m, "clock\t\t: %dMHz\n", freq/1000);
return;
}
#endif /* CONFIG_CPU_FREQ_PMAC */
}
#ifndef CONFIG_ADB_CUDA
int find_via_cuda(void)
{
......@@ -767,7 +755,6 @@ struct machdep_calls __initdata pmac_md = {
.setup_arch = pmac_setup_arch,
.init_early = pmac_init_early,
.show_cpuinfo = pmac_show_cpuinfo,
.show_percpuinfo = pmac_show_percpuinfo,
.init_IRQ = pmac_pic_init,
.get_irq = mpic_get_irq, /* changed later */
.pcibios_fixup = pmac_pcibios_fixup,
......
arch/powerpc/platforms/pseries/iommu.c
View file @ f093182d
......@@ -37,7 +37,6 @@
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/rtas.h>
#include <asm/ppcdebug.h>
#include <asm/iommu.h>
#include <asm/pci-bridge.h>
#include <asm/machdep.h>
......@@ -47,6 +46,7 @@
#include <asm/firmware.h>
#include <asm/tce.h>
#include <asm/ppc-pci.h>
#include <asm/udbg.h>
#include "plpar_wrappers.h"
......
arch/powerpc/platforms/pseries/lpar.c
View file @ f093182d
......@@ -31,13 +31,14 @@
#include <asm/machdep.h>
#include <asm/abs_addr.h>
#include <asm/mmu_context.h>
#include <asm/ppcdebug.h>
#include <asm/iommu.h>
#include <asm/tlbflush.h>
#include <asm/tlb.h>
#include <asm/prom.h>
#include <asm/abs_addr.h>
#include <asm/cputable.h>
#include <asm/udbg.h>
#include <asm/smp.h>
#include "plpar_wrappers.h"
......
arch/powerpc/platforms/pseries/plpar_wrappers.h
View file @ f093182d
......@@ -107,14 +107,4 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
lbuf[1]);
}
static inline long plpar_set_xdabr(unsigned long address, unsigned long flags)
{
return plpar_hcall_norets(H_SET_XDABR, address, flags);
}
static inline long plpar_set_dabr(unsigned long val)
{
return plpar_hcall_norets(H_SET_DABR, val);
}
#endif /* _PSERIES_PLPAR_WRAPPERS_H */
arch/powerpc/platforms/pseries/ras.c
View file @ f093182d
......@@ -48,7 +48,7 @@
#include <asm/ptrace.h>
#include <asm/machdep.h>
#include <asm/rtas.h>
#include <asm/ppcdebug.h>
#include <asm/udbg.h>
static unsigned char ras_log_buf[RTAS_ERROR_LOG_MAX];
static DEFINE_SPINLOCK(ras_log_buf_lock);
......
arch/powerpc/platforms/pseries/setup.c
View file @ f093182d
......@@ -65,6 +65,7 @@
#include <asm/ppc-pci.h>
#include <asm/i8259.h>
#include <asm/udbg.h>
#include <asm/smp.h>
#include "plpar_wrappers.h"
......@@ -353,14 +354,15 @@ static void pSeries_mach_cpu_die(void)
static int pseries_set_dabr(unsigned long dabr)
{
if (firmware_has_feature(FW_FEATURE_XDABR)) {
/* We want to catch accesses from kernel and userspace */
return plpar_set_xdabr(dabr, H_DABRX_KERNEL | H_DABRX_USER);
}
return plpar_set_dabr(dabr);
return plpar_hcall_norets(H_SET_DABR, dabr);
}
static int pseries_set_xdabr(unsigned long dabr)
{
/* We want to catch accesses from kernel and userspace */
return plpar_hcall_norets(H_SET_XDABR, dabr,
H_DABRX_KERNEL | H_DABRX_USER);
}
/*
* Early initialization. Relocation is on but do not reference unbolted pages
......@@ -396,8 +398,10 @@ static void __init pSeries_init_early(void)
DBG("Hello World !\n");
}
if (firmware_has_feature(FW_FEATURE_XDABR | FW_FEATURE_DABR))
if (firmware_has_feature(FW_FEATURE_DABR))
ppc_md.set_dabr = pseries_set_dabr;
else if (firmware_has_feature(FW_FEATURE_XDABR))
ppc_md.set_dabr = pseries_set_xdabr;
iommu_init_early_pSeries();
......
arch/powerpc/sysdev/i8259.c
View file @ f093182d
......@@ -207,6 +207,9 @@ void __init i8259_init(unsigned long intack_addr, int offset)
spin_unlock_irqrestore(&i8259_lock, flags);
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
irq_desc[offset + i].handler = &i8259_pic;
/* reserve our resources */
setup_irq(offset + 2, &i8259_irqaction);
request_resource(&ioport_resource, &pic1_iores);
......@@ -216,6 +219,4 @@ void __init i8259_init(unsigned long intack_addr, int offset)
if (intack_addr != 0)
pci_intack = ioremap(intack_addr, 1);
for (i = 0; i < NUM_ISA_INTERRUPTS; ++i)
irq_desc[offset + i].handler = &i8259_pic;
}
arch/powerpc/sysdev/u3_iommu.c
View file @ f093182d
......@@ -37,7 +37,6 @@
#include <linux/vmalloc.h>
#include <asm/io.h>
#include <asm/prom.h>
#include <asm/ppcdebug.h>
#include <asm/iommu.h>
#include <asm/pci-bridge.h>
#include <asm/machdep.h>
......
arch/ppc/kernel/misc.S
View file @ f093182d
......@@ -25,6 +25,11 @@
#include <asm/thread_info.h>
#include <asm/asm-offsets.h>
#ifdef CONFIG_8xx
#define ISYNC_8xx isync
#else
#define ISYNC_8xx
#endif
.text
.align 5
......@@ -800,8 +805,18 @@ _GLOBAL(_insb)
subi r4,r4,1
blelr-
00: lbz r5,0(r3)
eieio
stbu r5,1(r4)
01: eieio
02: stbu r5,1(r4)
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -811,8 +826,18 @@ _GLOBAL(_outsb)
subi r4,r4,1
blelr-
00: lbzu r5,1(r4)
stb r5,0(r3)
eieio
01: stb r5,0(r3)
02: eieio
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -822,8 +847,18 @@ _GLOBAL(_insw)
subi r4,r4,2
blelr-
00: lhbrx r5,0,r3
eieio
sthu r5,2(r4)
01: eieio
02: sthu r5,2(r4)
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -833,8 +868,18 @@ _GLOBAL(_outsw)
subi r4,r4,2
blelr-
00: lhzu r5,2(r4)
eieio
sthbrx r5,0,r3
01: eieio
02: sthbrx r5,0,r3
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -844,8 +889,18 @@ _GLOBAL(_insl)
subi r4,r4,4
blelr-
00: lwbrx r5,0,r3
eieio
stwu r5,4(r4)
01: eieio
02: stwu r5,4(r4)
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -855,8 +910,18 @@ _GLOBAL(_outsl)
subi r4,r4,4
blelr-
00: lwzu r5,4(r4)
stwbrx r5,0,r3
eieio
01: stwbrx r5,0,r3
02: eieio
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -867,8 +932,18 @@ _GLOBAL(_insw_ns)
subi r4,r4,2
blelr-
00: lhz r5,0(r3)
eieio
sthu r5,2(r4)
01: eieio
02: sthu r5,2(r4)
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -879,8 +954,18 @@ _GLOBAL(_outsw_ns)
subi r4,r4,2
blelr-
00: lhzu r5,2(r4)
sth r5,0(r3)
eieio
01: sth r5,0(r3)
02: eieio
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -891,8 +976,18 @@ _GLOBAL(_insl_ns)
subi r4,r4,4
blelr-
00: lwz r5,0(r3)
eieio
stwu r5,4(r4)
01: eieio
02: stwu r5,4(r4)
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......@@ -903,8 +998,18 @@ _GLOBAL(_outsl_ns)
subi r4,r4,4
blelr-
00: lwzu r5,4(r4)
stw r5,0(r3)
eieio
01: stw r5,0(r3)
02: eieio
ISYNC_8xx
.section .fixup,"ax"
03: blr
.text
.section __ex_table, "a"
.align 2
.long 00b, 03b
.long 01b, 03b
.long 02b, 03b
.text
bdnz 00b
blr
......
arch/ppc/kernel/traps.c
View file @ f093182d
......@@ -49,7 +49,7 @@ extern int xmon_sstep(struct pt_regs *regs);
extern int xmon_iabr_match(struct pt_regs *regs);
extern int xmon_dabr_match(struct pt_regs *regs);
void (*debugger)(struct pt_regs *regs) = xmon;
int (*debugger)(struct pt_regs *regs) = xmon;
int (*debugger_bpt)(struct pt_regs *regs) = xmon_bpt;
int (*debugger_sstep)(struct pt_regs *regs) = xmon_sstep;
int (*debugger_iabr_match)(struct pt_regs *regs) = xmon_iabr_match;
......@@ -57,7 +57,7 @@ int (*debugger_dabr_match)(struct pt_regs *regs) = xmon_dabr_match;
void (*debugger_fault_handler)(struct pt_regs *regs);
#else
#ifdef CONFIG_KGDB
void (*debugger)(struct pt_regs *regs);
int (*debugger)(struct pt_regs *regs);
int (*debugger_bpt)(struct pt_regs *regs);
int (*debugger_sstep)(struct pt_regs *regs);
int (*debugger_iabr_match)(struct pt_regs *regs);
......@@ -159,7 +159,7 @@ void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr)
*/
static inline int check_io_access(struct pt_regs *regs)
{
#ifdef CONFIG_PPC_PMAC
#if defined CONFIG_PPC_PMAC || defined CONFIG_8xx
unsigned long msr = regs->msr;
const struct exception_table_entry *entry;
unsigned int *nip = (unsigned int *)regs->nip;
......@@ -178,7 +178,11 @@ static inline int check_io_access(struct pt_regs *regs)
nip -= 2;
else if (*nip == 0x4c00012c) /* isync */
--nip;
if (*nip == 0x7c0004ac || (*nip >> 26) == 3) {
/* eieio from I/O string functions */
else if ((*nip) == 0x7c0006ac || *(nip+1) == 0x7c0006ac)
nip += 2;
if (*nip == 0x7c0004ac || (*nip >> 26) == 3 ||
(*(nip+1) >> 26) == 3) {
/* sync or twi */
unsigned int rb;
......
arch/ppc/syslib/m8xx_wdt.c
View file @ f093182d
......@@ -14,6 +14,7 @@
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/sched.h>
#include <asm/io.h>
#include <asm/8xx_immap.h>
#include <syslib/m8xx_wdt.h>
......@@ -29,8 +30,8 @@ void m8xx_wdt_reset(void)
{
volatile immap_t *imap = (volatile immap_t *)IMAP_ADDR;
out_be16(imap->im_siu_conf.sc_swsr, 0x556c); /* write magic1 */
out_be16(imap->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */
out_be16(&imap->im_siu_conf.sc_swsr, 0x556c); /* write magic1 */
out_be16(&imap->im_siu_conf.sc_swsr, 0xaa39); /* write magic2 */
}
static irqreturn_t m8xx_wdt_interrupt(int irq, void *dev, struct pt_regs *regs)
......@@ -39,7 +40,7 @@ static irqreturn_t m8xx_wdt_interrupt(int irq, void *dev, struct pt_regs *regs)
m8xx_wdt_reset();
out_be16(imap->im_sit.sit_piscr, in_be16(imap->im_sit.sit_piscr | PISCR_PS)); /* clear irq */
out_be16(&imap->im_sit.sit_piscr, in_be16(&imap->im_sit.sit_piscr) | PISCR_PS); /* clear irq */
return IRQ_HANDLED;
}
......@@ -51,7 +52,7 @@ void __init m8xx_wdt_handler_install(bd_t * binfo)
u32 sypcr;
u32 pitrtclk;
sypcr = in_be32(imap->im_siu_conf.sc_sypcr);
sypcr = in_be32(&imap->im_siu_conf.sc_sypcr);
if (!(sypcr & 0x04)) {
printk(KERN_NOTICE "m8xx_wdt: wdt disabled (SYPCR: 0x%08X)\n",
......@@ -87,9 +88,9 @@ void __init m8xx_wdt_handler_install(bd_t * binfo)
else
pitc = pitrtclk * wdt_timeout / binfo->bi_intfreq / 2;
out_be32(imap->im_sit.sit_pitc, pitc << 16);
out_be32(&imap->im_sit.sit_pitc, pitc << 16);
out_be16(imap->im_sit.sit_piscr, (mk_int_int_mask(PIT_INTERRUPT) << 8) | PISCR_PIE | PISCR_PTE);
out_be16(&imap->im_sit.sit_piscr, (mk_int_int_mask(PIT_INTERRUPT) << 8) | PISCR_PIE | PISCR_PTE);
if (setup_irq(PIT_INTERRUPT, &m8xx_wdt_irqaction))
panic("m8xx_wdt: error setting up the watchdog irq!");
......
arch/ppc/syslib/prom.c
View file @ f093182d
......@@ -1165,7 +1165,7 @@ get_property(struct device_node *np, const char *name, int *lenp)
/*
* Add a property to a node
*/
void
int
prom_add_property(struct device_node* np, struct property* prop)
{
struct property **next = &np->properties;
......@@ -1174,6 +1174,8 @@ prom_add_property(struct device_node* np, struct property* prop)
while (*next)
next = &(*next)->next;
*next = prop;
return 0;
}
/* I quickly hacked that one, check against spec ! */
......
arch/ppc/xmon/xmon.c
View file @ f093182d
......@@ -220,8 +220,7 @@ static void get_tb(unsigned *p)
p[1] = lo;
}
void
xmon(struct pt_regs *excp)
int xmon(struct pt_regs *excp)
{
struct pt_regs regs;
int msr, cmd;
......@@ -290,6 +289,8 @@ xmon(struct pt_regs *excp)
#endif /* CONFIG_SMP */
set_msr(msr); /* restore interrupt enable */
get_tb(start_tb[smp_processor_id()]);
return cmd != 'X';
}
irqreturn_t
......
arch/ppc64/Kconfig
View file @ f093182d
......@@ -56,6 +56,7 @@ config PPC_STD_MMU
# max order + 1
config FORCE_MAX_ZONEORDER
int
default "9" if PPC_64K_PAGES
default "13"
source "init/Kconfig"
......@@ -173,6 +174,16 @@ config KEXEC
support. As of this writing the exact hardware interface is
strongly in flux, so no good recommendation can be made.
source "drivers/cpufreq/Kconfig"
config CPU_FREQ_PMAC64
bool "Support for some Apple G5s"
depends on CPU_FREQ && PMAC_SMU && PPC64
select CPU_FREQ_TABLE
help
This adds support for frequency switching on Apple iMac G5,
and some of the more recent desktop G5 machines as well.
config IBMVIO
depends on PPC_PSERIES || PPC_ISERIES
bool
......
arch/ppc64/Kconfig.debug
View file @ f093182d
......@@ -55,10 +55,6 @@ config XMON_DEFAULT
xmon is normally disabled unless booted with 'xmon=on'.
Use 'xmon=off' to disable xmon init during runtime.
config PPCDBG
bool "Include PPCDBG realtime debugging"
depends on DEBUG_KERNEL
config IRQSTACKS
bool "Use separate kernel stacks when processing interrupts"
help
......
arch/ppc64/kernel/idle.c
View file @ f093182d
......@@ -28,6 +28,7 @@
#include <asm/time.h>
#include <asm/systemcfg.h>
#include <asm/machdep.h>
#include <asm/smp.h>
extern void power4_idle(void);
......
arch/ppc64/kernel/machine_kexec.c
View file @ f093182d
......@@ -24,6 +24,7 @@
#include <asm/mmu.h>
#include <asm/sections.h> /* _end */
#include <asm/prom.h>
#include <asm/smp.h>
#define HASH_GROUP_SIZE 0x80 /* size of each hash group, asm/mmu.h */
......
arch/ppc64/kernel/misc.S
View file @ f093182d
......@@ -560,7 +560,7 @@ _GLOBAL(real_readb)
isync
blr
/*
/*
* Do an IO access in real mode
*/
_GLOBAL(real_writeb)
......@@ -592,6 +592,76 @@ _GLOBAL(real_writeb)
blr
#endif /* defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE) */
/*
* SCOM access functions for 970 (FX only for now)
*
* unsigned long scom970_read(unsigned int address);
* void scom970_write(unsigned int address, unsigned long value);
*
* The address passed in is the 24 bits register address. This code
* is 970 specific and will not check the status bits, so you should
* know what you are doing.
*/
_GLOBAL(scom970_read)
/* interrupts off */
mfmsr r4
ori r0,r4,MSR_EE
xori r0,r0,MSR_EE
mtmsrd r0,1
/* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
* (including parity). On current CPUs they must be 0'd,
* and finally or in RW bit
*/
rlwinm r3,r3,8,0,15
ori r3,r3,0x8000
/* do the actual scom read */
sync
mtspr SPRN_SCOMC,r3
isync
mfspr r3,SPRN_SCOMD
isync
mfspr r0,SPRN_SCOMC
isync
/* XXX: fixup result on some buggy 970's (ouch ! we lost a bit, bah
* that's the best we can do). Not implemented yet as we don't use
* the scom on any of the bogus CPUs yet, but may have to be done
* ultimately
*/
/* restore interrupts */
mtmsrd r4,1
blr
_GLOBAL(scom970_write)
/* interrupts off */
mfmsr r5
ori r0,r5,MSR_EE
xori r0,r0,MSR_EE
mtmsrd r0,1
/* rotate 24 bits SCOM address 8 bits left and mask out it's low 8 bits
* (including parity). On current CPUs they must be 0'd.
*/
rlwinm r3,r3,8,0,15
sync
mtspr SPRN_SCOMD,r4 /* write data */
isync
mtspr SPRN_SCOMC,r3 /* write command */
isync
mfspr 3,SPRN_SCOMC
isync
/* restore interrupts */
mtmsrd r5,1
blr
/*
* Create a kernel thread
* kernel_thread(fn, arg, flags)
......
arch/ppc64/kernel/pci.c
View file @ f093182d
......@@ -295,8 +295,8 @@ static void pci_parse_of_addrs(struct device_node *node, struct pci_dev *dev)
}
}
static struct pci_dev *of_create_pci_dev(struct device_node *node,
struct pci_bus *bus, int devfn)
struct pci_dev *of_create_pci_dev(struct device_node *node,
struct pci_bus *bus, int devfn)
{
struct pci_dev *dev;
const char *type;
......@@ -354,10 +354,9 @@ static struct pci_dev *of_create_pci_dev(struct device_node *node,
return dev;
}
EXPORT_SYMBOL(of_create_pci_dev);
static void of_scan_pci_bridge(struct device_node *node, struct pci_dev *dev);
static void __devinit of_scan_bus(struct device_node *node,
void __devinit of_scan_bus(struct device_node *node,
struct pci_bus *bus)
{
struct device_node *child = NULL;
......@@ -381,9 +380,10 @@ static void __devinit of_scan_bus(struct device_node *node,
do_bus_setup(bus);
}
EXPORT_SYMBOL(of_scan_bus);
static void __devinit of_scan_pci_bridge(struct device_node *node,
struct pci_dev *dev)
void __devinit of_scan_pci_bridge(struct device_node *node,
struct pci_dev *dev)
{
struct pci_bus *bus;
u32 *busrange, *ranges;
......@@ -464,9 +464,10 @@ static void __devinit of_scan_pci_bridge(struct device_node *node,
else if (mode == PCI_PROBE_NORMAL)
pci_scan_child_bus(bus);
}
EXPORT_SYMBOL(of_scan_pci_bridge);
#endif /* CONFIG_PPC_MULTIPLATFORM */
static void __devinit scan_phb(struct pci_controller *hose)
void __devinit scan_phb(struct pci_controller *hose)
{
struct pci_bus *bus;
struct device_node *node = hose->arch_data;
......
arch/ppc64/kernel/prom.c
View file @ f093182d
......@@ -31,6 +31,7 @@
#include <linux/initrd.h>
#include <linux/bitops.h>
#include <linux/module.h>
#include <linux/module.h>
#include <asm/prom.h>
#include <asm/rtas.h>
......@@ -46,7 +47,6 @@
#include <asm/pgtable.h>
#include <asm/pci.h>
#include <asm/iommu.h>
#include <asm/ppcdebug.h>
#include <asm/btext.h>
#include <asm/sections.h>
#include <asm/machdep.h>
......@@ -1866,17 +1866,32 @@ get_property(struct device_node *np, const char *name, int *lenp)
EXPORT_SYMBOL(get_property);
/*
* Add a property to a node
* Add a property to a node.
*/
void
int
prom_add_property(struct device_node* np, struct property* prop)
{
struct property **next = &np->properties;
struct property **next;
prop->next = NULL;
while (*next)
write_lock(&devtree_lock);
next = &np->properties;
while (*next) {
if (strcmp(prop->name, (*next)->name) == 0) {
/* duplicate ! don't insert it */
write_unlock(&devtree_lock);
return -1;
}
next = &(*next)->next;
}
*next = prop;
write_unlock(&devtree_lock);
/* try to add to proc as well if it was initialized */
if (np->pde)
proc_device_tree_add_prop(np->pde, prop);
return 0;
}
#if 0
......
arch/ppc64/kernel/prom_init.c
View file @ f093182d
......@@ -44,7 +44,6 @@
#include <asm/pgtable.h>
#include <asm/pci.h>
#include <asm/iommu.h>
#include <asm/ppcdebug.h>
#include <asm/btext.h>
#include <asm/sections.h>
#include <asm/machdep.h>
......@@ -1825,7 +1824,7 @@ static void __init fixup_device_tree(void)
if (prom_getprop(u3, "device-rev", &u3_rev, sizeof(u3_rev))
== PROM_ERROR)
return;
if (u3_rev != 0x35 && u3_rev != 0x37)
if (u3_rev < 0x35 || u3_rev > 0x39)
return;
/* does it need fixup ? */
if (prom_getproplen(i2c, "interrupts") > 0)
......
arch/ppc64/kernel/rtas_pci.c
View file @ f093182d
......@@ -440,7 +440,6 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
struct device_node *root = of_find_node_by_path("/");
unsigned int root_size_cells = 0;
struct pci_controller *phb;
struct pci_bus *bus;
int primary;
root_size_cells = prom_n_size_cells(root);
......@@ -456,10 +455,7 @@ struct pci_controller * __devinit init_phb_dynamic(struct device_node *dn)
of_node_put(root);
pci_devs_phb_init_dynamic(phb);
phb->last_busno = 0xff;
bus = pci_scan_bus(phb->first_busno, phb->ops, phb->arch_data);
phb->bus = bus;
phb->last_busno = bus->subordinate;
scan_phb(phb);
return phb;
}
......
arch/ppc64/kernel/udbg.c
View file @ f093182d
......@@ -10,12 +10,10 @@
*/
#include <stdarg.h>
#define WANT_PPCDBG_TAB /* Only defined here */
#include <linux/config.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/console.h>
#include <asm/ppcdebug.h>
#include <asm/processor.h>
void (*udbg_putc)(unsigned char c);
......@@ -89,59 +87,6 @@ void udbg_printf(const char *fmt, ...)
va_end(args);
}
/* PPCDBG stuff */
u64 ppc64_debug_switch;
/* Special print used by PPCDBG() macro */
void udbg_ppcdbg(unsigned long debug_flags, const char *fmt, ...)
{
unsigned long active_debugs = debug_flags & ppc64_debug_switch;
if (active_debugs) {
va_list ap;
unsigned char buf[UDBG_BUFSIZE];
unsigned long i, len = 0;
for (i=0; i < PPCDBG_NUM_FLAGS; i++) {
if (((1U << i) & active_debugs) &&
trace_names[i]) {
len += strlen(trace_names[i]);
udbg_puts(trace_names[i]);
break;
}
}
snprintf(buf, UDBG_BUFSIZE, " [%s]: ", current->comm);
len += strlen(buf);
udbg_puts(buf);
while (len < 18) {
udbg_puts(" ");
len++;
}
va_start(ap, fmt);
vsnprintf(buf, UDBG_BUFSIZE, fmt, ap);
udbg_puts(buf);
va_end(ap);
}
}
unsigned long udbg_ifdebug(unsigned long flags)
{
return (flags & ppc64_debug_switch);
}
/*
* Initialize the PPCDBG state. Called before relocation has been enabled.
*/
void __init ppcdbg_initialize(void)
{
ppc64_debug_switch = PPC_DEBUG_DEFAULT; /* | PPCDBG_BUSWALK | */
/* PPCDBG_PHBINIT | PPCDBG_MM | PPCDBG_MMINIT | PPCDBG_TCEINIT | PPCDBG_TCE */;
}
/*
* Early boot console based on udbg
*/
......
drivers/block/swim3.c
View file @ f093182d
......@@ -28,6 +28,7 @@
#include <linux/devfs_fs_kernel.h>
#include <linux/interrupt.h>
#include <linux/module.h>
#include <linux/spinlock.h>
#include <asm/io.h>
#include <asm/dbdma.h>
#include <asm/prom.h>
......@@ -176,6 +177,7 @@ struct swim3 {
struct floppy_state {
enum swim_state state;
spinlock_t lock;
struct swim3 __iomem *swim3; /* hardware registers */
struct dbdma_regs __iomem *dma; /* DMA controller registers */
int swim3_intr; /* interrupt number for SWIM3 */
......@@ -304,7 +306,6 @@ static void do_fd_request(request_queue_t * q)
#endif /* CONFIG_PMAC_MEDIABAY */
start_request(&floppy_states[i]);
}
sti();
}
static void start_request(struct floppy_state *fs)
......@@ -370,7 +371,7 @@ static void set_timeout(struct floppy_state *fs, int nticks,
{
unsigned long flags;
save_flags(flags); cli();
spin_lock_irqsave(&fs->lock, flags);
if (fs->timeout_pending)
del_timer(&fs->timeout);
fs->timeout.expires = jiffies + nticks;
......@@ -378,7 +379,7 @@ static void set_timeout(struct floppy_state *fs, int nticks,
fs->timeout.data = (unsigned long) fs;
add_timer(&fs->timeout);
fs->timeout_pending = 1;
restore_flags(flags);
spin_unlock_irqrestore(&fs->lock, flags);
}
static inline void scan_track(struct floppy_state *fs)
......@@ -790,14 +791,13 @@ static int grab_drive(struct floppy_state *fs, enum swim_state state,
{
unsigned long flags;
save_flags(flags);
cli();
spin_lock_irqsave(&fs->lock, flags);
if (fs->state != idle) {
++fs->wanted;
while (fs->state != available) {
if (interruptible && signal_pending(current)) {
--fs->wanted;
restore_flags(flags);
spin_unlock_irqrestore(&fs->lock, flags);
return -EINTR;
}
interruptible_sleep_on(&fs->wait);
......@@ -805,7 +805,7 @@ static int grab_drive(struct floppy_state *fs, enum swim_state state,
--fs->wanted;
}
fs->state = state;
restore_flags(flags);
spin_unlock_irqrestore(&fs->lock, flags);
return 0;
}
......@@ -813,11 +813,10 @@ static void release_drive(struct floppy_state *fs)
{
unsigned long flags;
save_flags(flags);
cli();
spin_lock_irqsave(&fs->lock, flags);
fs->state = idle;
start_request(fs);
restore_flags(flags);
spin_unlock_irqrestore(&fs->lock, flags);
}
static int fd_eject(struct floppy_state *fs)
......@@ -1109,6 +1108,7 @@ static int swim3_add_device(struct device_node *swim)
pmac_call_feature(PMAC_FTR_SWIM3_ENABLE, swim, 0, 1);
memset(fs, 0, sizeof(*fs));
spin_lock_init(&fs->lock);
fs->state = idle;
fs->swim3 = (struct swim3 __iomem *)
ioremap(swim->addrs[0].address, 0x200);
......
drivers/ide/ppc/pmac.c
View file @ f093182d
......@@ -497,16 +497,19 @@ pmu_hd_blink_init(void)
if (pmu_get_model() != PMU_KEYLARGO_BASED)
return 0;
dt = find_devices("device-tree");
dt = of_find_node_by_path("/");
if (dt == NULL)
return 0;
model = (const char *)get_property(dt, "model", NULL);
if (model == NULL)
return 0;
if (strncmp(model, "PowerBook", strlen("PowerBook")) != 0 &&
strncmp(model, "iBook", strlen("iBook")) != 0)
strncmp(model, "iBook", strlen("iBook")) != 0) {
of_node_put(dt);
return 0;
}
of_node_put(dt);
pmu_blink_on.complete = 1;
pmu_blink_off.complete = 1;
spin_lock_init(&pmu_blink_lock);
......
drivers/macintosh/Kconfig
View file @ f093182d
......@@ -169,6 +169,25 @@ config THERM_PM72
This driver provides thermostat and fan control for the desktop
G5 machines.
config WINDFARM
tristate "New PowerMac thermal control infrastructure"
config WINDFARM_PM81
tristate "Support for thermal management on iMac G5"
depends on WINDFARM && I2C && CPU_FREQ_PMAC64 && PMAC_SMU
select I2C_PMAC_SMU
help
This driver provides thermal control for the iMacG5
config WINDFARM_PM91
tristate "Support for thermal management on PowerMac9,1"
depends on WINDFARM && I2C && CPU_FREQ_PMAC64 && PMAC_SMU
select I2C_PMAC_SMU
help
This driver provides thermal control for the PowerMac9,1
which is the recent (SMU based) single CPU desktop G5
config ANSLCD
tristate "Support for ANS LCD display"
depends on ADB_CUDA && PPC_PMAC
......
drivers/macintosh/Makefile
View file @ f093182d
......@@ -26,3 +26,12 @@ obj-$(CONFIG_ADB_MACIO) += macio-adb.o
obj-$(CONFIG_THERM_PM72) += therm_pm72.o
obj-$(CONFIG_THERM_WINDTUNNEL) += therm_windtunnel.o
obj-$(CONFIG_THERM_ADT746X) += therm_adt746x.o
obj-$(CONFIG_WINDFARM) += windfarm_core.o
obj-$(CONFIG_WINDFARM_PM81) += windfarm_smu_controls.o \
windfarm_smu_sensors.o \
windfarm_lm75_sensor.o windfarm_pid.o \
windfarm_cpufreq_clamp.o windfarm_pm81.o
obj-$(CONFIG_WINDFARM_PM91) += windfarm_smu_controls.o \
windfarm_smu_sensors.o \
windfarm_lm75_sensor.o windfarm_pid.o \
windfarm_cpufreq_clamp.o windfarm_pm91.o
drivers/macintosh/smu.c
View file @ f093182d
......@@ -47,13 +47,13 @@
#include <asm/uaccess.h>
#include <asm/of_device.h>
#define VERSION "0.6"
#define VERSION "0.7"
#define AUTHOR "(c) 2005 Benjamin Herrenschmidt, IBM Corp."
#undef DEBUG_SMU
#ifdef DEBUG_SMU
#define DPRINTK(fmt, args...) do { printk(KERN_DEBUG fmt , ##args); } while (0)
#define DPRINTK(fmt, args...) do { udbg_printf(KERN_DEBUG fmt , ##args); } while (0)
#else
#define DPRINTK(fmt, args...) do { } while (0)
#endif
......@@ -92,7 +92,7 @@ struct smu_device {
* for now, just hard code that
*/
static struct smu_device *smu;
static DECLARE_MUTEX(smu_part_access);
/*
* SMU driver low level stuff
......@@ -113,9 +113,11 @@ static void smu_start_cmd(void)
DPRINTK("SMU: starting cmd %x, %d bytes data\n", cmd->cmd,
cmd->data_len);
DPRINTK("SMU: data buffer: %02x %02x %02x %02x ...\n",
DPRINTK("SMU: data buffer: %02x %02x %02x %02x %02x %02x %02x %02x\n",
((u8 *)cmd->data_buf)[0], ((u8 *)cmd->data_buf)[1],
((u8 *)cmd->data_buf)[2], ((u8 *)cmd->data_buf)[3]);
((u8 *)cmd->data_buf)[2], ((u8 *)cmd->data_buf)[3],
((u8 *)cmd->data_buf)[4], ((u8 *)cmd->data_buf)[5],
((u8 *)cmd->data_buf)[6], ((u8 *)cmd->data_buf)[7]);
/* Fill the SMU command buffer */
smu->cmd_buf->cmd = cmd->cmd;
......@@ -440,7 +442,7 @@ int smu_present(void)
EXPORT_SYMBOL(smu_present);
int smu_init (void)
int __init smu_init (void)
{
struct device_node *np;
u32 *data;
......@@ -588,6 +590,8 @@ static void smu_expose_childs(void *unused)
sprintf(name, "smu-i2c-%02x", *reg);
of_platform_device_create(np, name, &smu->of_dev->dev);
}
if (device_is_compatible(np, "smu-sensors"))
of_platform_device_create(np, "smu-sensors", &smu->of_dev->dev);
}
}
......@@ -845,6 +849,156 @@ int smu_queue_i2c(struct smu_i2c_cmd *cmd)
return 0;
}
/*
* Handling of "partitions"
*/
static int smu_read_datablock(u8 *dest, unsigned int addr, unsigned int len)
{
DECLARE_COMPLETION(comp);
unsigned int chunk;
struct smu_cmd cmd;
int rc;
u8 params[8];
/* We currently use a chunk size of 0xe. We could check the
* SMU firmware version and use bigger sizes though
*/
chunk = 0xe;
while (len) {
unsigned int clen = min(len, chunk);
cmd.cmd = SMU_CMD_MISC_ee_COMMAND;
cmd.data_len = 7;
cmd.data_buf = params;
cmd.reply_len = chunk;
cmd.reply_buf = dest;
cmd.done = smu_done_complete;
cmd.misc = &comp;
params[0] = SMU_CMD_MISC_ee_GET_DATABLOCK_REC;
params[1] = 0x4;
*((u32 *)&params[2]) = addr;
params[6] = clen;
rc = smu_queue_cmd(&cmd);
if (rc)
return rc;
wait_for_completion(&comp);
if (cmd.status != 0)
return rc;
if (cmd.reply_len != clen) {
printk(KERN_DEBUG "SMU: short read in "
"smu_read_datablock, got: %d, want: %d\n",
cmd.reply_len, clen);
return -EIO;
}
len -= clen;
addr += clen;
dest += clen;
}
return 0;
}
static struct smu_sdbp_header *smu_create_sdb_partition(int id)
{
DECLARE_COMPLETION(comp);
struct smu_simple_cmd cmd;
unsigned int addr, len, tlen;
struct smu_sdbp_header *hdr;
struct property *prop;
/* First query the partition info */
smu_queue_simple(&cmd, SMU_CMD_PARTITION_COMMAND, 2,
smu_done_complete, &comp,
SMU_CMD_PARTITION_LATEST, id);
wait_for_completion(&comp);
/* Partition doesn't exist (or other error) */
if (cmd.cmd.status != 0 || cmd.cmd.reply_len != 6)
return NULL;
/* Fetch address and length from reply */
addr = *((u16 *)cmd.buffer);
len = cmd.buffer[3] << 2;
/* Calucluate total length to allocate, including the 17 bytes
* for "sdb-partition-XX" that we append at the end of the buffer
*/
tlen = sizeof(struct property) + len + 18;
prop = kcalloc(tlen, 1, GFP_KERNEL);
if (prop == NULL)
return NULL;
hdr = (struct smu_sdbp_header *)(prop + 1);
prop->name = ((char *)prop) + tlen - 18;
sprintf(prop->name, "sdb-partition-%02x", id);
prop->length = len;
prop->value = (unsigned char *)hdr;
prop->next = NULL;
/* Read the datablock */
if (smu_read_datablock((u8 *)hdr, addr, len)) {
printk(KERN_DEBUG "SMU: datablock read failed while reading "
"partition %02x !\n", id);
goto failure;
}
/* Got it, check a few things and create the property */
if (hdr->id != id) {
printk(KERN_DEBUG "SMU: Reading partition %02x and got "
"%02x !\n", id, hdr->id);
goto failure;
}
if (prom_add_property(smu->of_node, prop)) {
printk(KERN_DEBUG "SMU: Failed creating sdb-partition-%02x "
"property !\n", id);
goto failure;
}
return hdr;
failure:
kfree(prop);
return NULL;
}
/* Note: Only allowed to return error code in pointers (using ERR_PTR)
* when interruptible is 1
*/
struct smu_sdbp_header *__smu_get_sdb_partition(int id, unsigned int *size,
int interruptible)
{
char pname[32];
struct smu_sdbp_header *part;
if (!smu)
return NULL;
sprintf(pname, "sdb-partition-%02x", id);
if (interruptible) {
int rc;
rc = down_interruptible(&smu_part_access);
if (rc)
return ERR_PTR(rc);
} else
down(&smu_part_access);
part = (struct smu_sdbp_header *)get_property(smu->of_node,
pname, size);
if (part == NULL) {
part = smu_create_sdb_partition(id);
if (part != NULL && size)
*size = part->len << 2;
}
up(&smu_part_access);
return part;
}
struct smu_sdbp_header *smu_get_sdb_partition(int id, unsigned int *size)
{
return __smu_get_sdb_partition(id, size, 0);
}
EXPORT_SYMBOL(smu_get_sdb_partition);
/*
......@@ -918,6 +1072,14 @@ static ssize_t smu_write(struct file *file, const char __user *buf,
else if (hdr.cmdtype == SMU_CMDTYPE_WANTS_EVENTS) {
pp->mode = smu_file_events;
return 0;
} else if (hdr.cmdtype == SMU_CMDTYPE_GET_PARTITION) {
struct smu_sdbp_header *part;
part = __smu_get_sdb_partition(hdr.cmd, NULL, 1);
if (part == NULL)
return -EINVAL;
else if (IS_ERR(part))
return PTR_ERR(part);
return 0;
} else if (hdr.cmdtype != SMU_CMDTYPE_SMU)
return -EINVAL;
else if (pp->mode != smu_file_commands)
......
drivers/macintosh/via-pmu.c
View file @ f093182d
......@@ -2053,6 +2053,7 @@ pmu_register_sleep_notifier(struct pmu_sleep_notifier *n)
__list_add(&n->list, list->prev, list);
return 0;
}
EXPORT_SYMBOL(pmu_register_sleep_notifier);
int
pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* n)
......@@ -2063,6 +2064,7 @@ pmu_unregister_sleep_notifier(struct pmu_sleep_notifier* n)
n->list.next = NULL;
return 0;
}
EXPORT_SYMBOL(pmu_unregister_sleep_notifier);
#endif /* CONFIG_PM */
#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
......@@ -2667,10 +2669,10 @@ powerbook_sleep_3400(void)
asleep = 1;
/* Put the CPU into sleep mode */
asm volatile("mfspr %0,1008" : "=r" (hid0) :);
hid0 = mfspr(SPRN_HID0);
hid0 = (hid0 & ~(HID0_NAP | HID0_DOZE)) | HID0_SLEEP;
asm volatile("mtspr 1008,%0" : : "r" (hid0));
_nmask_and_or_msr(0, MSR_POW | MSR_EE);
mtspr(SPRN_HID0, hid0);
mtmsr(mfmsr() | MSR_POW | MSR_EE);
udelay(10);
/* OK, we're awake again, start restoring things */
......@@ -3139,8 +3141,6 @@ EXPORT_SYMBOL(pmu_i2c_stdsub_write);
EXPORT_SYMBOL(pmu_i2c_simple_read);
EXPORT_SYMBOL(pmu_i2c_simple_write);
#if defined(CONFIG_PM) && defined(CONFIG_PPC32)
EXPORT_SYMBOL(pmu_register_sleep_notifier);
EXPORT_SYMBOL(pmu_unregister_sleep_notifier);
EXPORT_SYMBOL(pmu_enable_irled);
EXPORT_SYMBOL(pmu_battery_count);
EXPORT_SYMBOL(pmu_batteries);
......
drivers/macintosh/windfarm.h 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control.
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*/
#ifndef __WINDFARM_H__
#define __WINDFARM_H__
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/notifier.h>
/* Display a 16.16 fixed point value */
#define FIX32TOPRINT(f) ((f) >> 16),((((f) & 0xffff) * 1000) >> 16)
/*
* Control objects
*/
struct wf_control;
struct wf_control_ops {
int (*set_value)(struct wf_control *ct, s32 val);
int (*get_value)(struct wf_control *ct, s32 *val);
s32 (*get_min)(struct wf_control *ct);
s32 (*get_max)(struct wf_control *ct);
void (*release)(struct wf_control *ct);
struct module *owner;
};
struct wf_control {
struct list_head link;
struct wf_control_ops *ops;
char *name;
int type;
struct kref ref;
};
#define WF_CONTROL_TYPE_GENERIC 0
#define WF_CONTROL_RPM_FAN 1
#define WF_CONTROL_PWM_FAN 2
/* Note about lifetime rules: wf_register_control() will initialize
* the kref and wf_unregister_control will decrement it, thus the
* object creating/disposing a given control shouldn't assume it
* still exists after wf_unregister_control has been called.
* wf_find_control will inc the refcount for you
*/
extern int wf_register_control(struct wf_control *ct);
extern void wf_unregister_control(struct wf_control *ct);
extern struct wf_control * wf_find_control(const char *name);
extern int wf_get_control(struct wf_control *ct);
extern void wf_put_control(struct wf_control *ct);
static inline int wf_control_set_max(struct wf_control *ct)
{
s32 vmax = ct->ops->get_max(ct);
return ct->ops->set_value(ct, vmax);
}
static inline int wf_control_set_min(struct wf_control *ct)
{
s32 vmin = ct->ops->get_min(ct);
return ct->ops->set_value(ct, vmin);
}
/*
* Sensor objects
*/
struct wf_sensor;
struct wf_sensor_ops {
int (*get_value)(struct wf_sensor *sr, s32 *val);
void (*release)(struct wf_sensor *sr);
struct module *owner;
};
struct wf_sensor {
struct list_head link;
struct wf_sensor_ops *ops;
char *name;
struct kref ref;
};
/* Same lifetime rules as controls */
extern int wf_register_sensor(struct wf_sensor *sr);
extern void wf_unregister_sensor(struct wf_sensor *sr);
extern struct wf_sensor * wf_find_sensor(const char *name);
extern int wf_get_sensor(struct wf_sensor *sr);
extern void wf_put_sensor(struct wf_sensor *sr);
/* For use by clients. Note that we are a bit racy here since
* notifier_block doesn't have a module owner field. I may fix
* it one day ...
*
* LOCKING NOTE !
*
* All "events" except WF_EVENT_TICK are called with an internal mutex
* held which will deadlock if you call basically any core routine.
* So don't ! Just take note of the event and do your actual operations
* from the ticker.
*
*/
extern int wf_register_client(struct notifier_block *nb);
extern int wf_unregister_client(struct notifier_block *nb);
/* Overtemp conditions. Those are refcounted */
extern void wf_set_overtemp(void);
extern void wf_clear_overtemp(void);
extern int wf_is_overtemp(void);
#define WF_EVENT_NEW_CONTROL 0 /* param is wf_control * */
#define WF_EVENT_NEW_SENSOR 1 /* param is wf_sensor * */
#define WF_EVENT_OVERTEMP 2 /* no param */
#define WF_EVENT_NORMALTEMP 3 /* overtemp condition cleared */
#define WF_EVENT_TICK 4 /* 1 second tick */
/* Note: If that driver gets more broad use, we could replace the
* simplistic overtemp bits with "environmental conditions". That
* could then be used to also notify of things like fan failure,
* case open, battery conditions, ...
*/
#endif /* __WINDFARM_H__ */
drivers/macintosh/windfarm_core.c 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control. Core
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*
* This core code tracks the list of sensors & controls, register
* clients, and holds the kernel thread used for control.
*
* TODO:
*
* Add some information about sensor/control type and data format to
* sensors/controls, and have the sysfs attribute stuff be moved
* generically here instead of hard coded in the platform specific
* driver as it us currently
*
* This however requires solving some annoying lifetime issues with
* sysfs which doesn't seem to have lifetime rules for struct attribute,
* I may have to create full features kobjects for every sensor/control
* instead which is a bit of an overkill imho
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/spinlock.h>
#include <linux/smp_lock.h>
#include <linux/kthread.h>
#include <linux/jiffies.h>
#include <linux/reboot.h>
#include <linux/device.h>
#include <linux/platform_device.h>
#include "windfarm.h"
#define VERSION "0.2"
#undef DEBUG
#ifdef DEBUG
#define DBG(args...) printk(args)
#else
#define DBG(args...) do { } while(0)
#endif
static LIST_HEAD(wf_controls);
static LIST_HEAD(wf_sensors);
static DECLARE_MUTEX(wf_lock);
static struct notifier_block *wf_client_list;
static int wf_client_count;
static unsigned int wf_overtemp;
static unsigned int wf_overtemp_counter;
struct task_struct *wf_thread;
/*
* Utilities & tick thread
*/
static inline void wf_notify(int event, void *param)
{
notifier_call_chain(&wf_client_list, event, param);
}
int wf_critical_overtemp(void)
{
static char * critical_overtemp_path = "/sbin/critical_overtemp";
char *argv[] = { critical_overtemp_path, NULL };
static char *envp[] = { "HOME=/",
"TERM=linux",
"PATH=/sbin:/usr/sbin:/bin:/usr/bin",
NULL };
return call_usermodehelper(critical_overtemp_path, argv, envp, 0);
}
EXPORT_SYMBOL_GPL(wf_critical_overtemp);
static int wf_thread_func(void *data)
{
unsigned long next, delay;
next = jiffies;
DBG("wf: thread started\n");
while(!kthread_should_stop()) {
try_to_freeze();
if (time_after_eq(jiffies, next)) {
wf_notify(WF_EVENT_TICK, NULL);
if (wf_overtemp) {
wf_overtemp_counter++;
/* 10 seconds overtemp, notify userland */
if (wf_overtemp_counter > 10)
wf_critical_overtemp();
/* 30 seconds, shutdown */
if (wf_overtemp_counter > 30) {
printk(KERN_ERR "windfarm: Overtemp "
"for more than 30"
" seconds, shutting down\n");
machine_power_off();
}
}
next += HZ;
}
delay = next - jiffies;
if (delay <= HZ)
schedule_timeout_interruptible(delay);
/* there should be no signal, but oh well */
if (signal_pending(current)) {
printk(KERN_WARNING "windfarm: thread got sigl !\n");
break;
}
}
DBG("wf: thread stopped\n");
return 0;
}
static void wf_start_thread(void)
{
wf_thread = kthread_run(wf_thread_func, NULL, "kwindfarm");
if (IS_ERR(wf_thread)) {
printk(KERN_ERR "windfarm: failed to create thread,err %ld\n",
PTR_ERR(wf_thread));
wf_thread = NULL;
}
}
static void wf_stop_thread(void)
{
if (wf_thread)
kthread_stop(wf_thread);
wf_thread = NULL;
}
/*
* Controls
*/
static void wf_control_release(struct kref *kref)
{
struct wf_control *ct = container_of(kref, struct wf_control, ref);
DBG("wf: Deleting control %s\n", ct->name);
if (ct->ops && ct->ops->release)
ct->ops->release(ct);
else
kfree(ct);
}
int wf_register_control(struct wf_control *new_ct)
{
struct wf_control *ct;
down(&wf_lock);
list_for_each_entry(ct, &wf_controls, link) {
if (!strcmp(ct->name, new_ct->name)) {
printk(KERN_WARNING "windfarm: trying to register"
" duplicate control %s\n", ct->name);
up(&wf_lock);
return -EEXIST;
}
}
kref_init(&new_ct->ref);
list_add(&new_ct->link, &wf_controls);
DBG("wf: Registered control %s\n", new_ct->name);
wf_notify(WF_EVENT_NEW_CONTROL, new_ct);
up(&wf_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wf_register_control);
void wf_unregister_control(struct wf_control *ct)
{
down(&wf_lock);
list_del(&ct->link);
up(&wf_lock);
DBG("wf: Unregistered control %s\n", ct->name);
kref_put(&ct->ref, wf_control_release);
}
EXPORT_SYMBOL_GPL(wf_unregister_control);
struct wf_control * wf_find_control(const char *name)
{
struct wf_control *ct;
down(&wf_lock);
list_for_each_entry(ct, &wf_controls, link) {
if (!strcmp(ct->name, name)) {
if (wf_get_control(ct))
ct = NULL;
up(&wf_lock);
return ct;
}
}
up(&wf_lock);
return NULL;
}
EXPORT_SYMBOL_GPL(wf_find_control);
int wf_get_control(struct wf_control *ct)
{
if (!try_module_get(ct->ops->owner))
return -ENODEV;
kref_get(&ct->ref);
return 0;
}
EXPORT_SYMBOL_GPL(wf_get_control);
void wf_put_control(struct wf_control *ct)
{
struct module *mod = ct->ops->owner;
kref_put(&ct->ref, wf_control_release);
module_put(mod);
}
EXPORT_SYMBOL_GPL(wf_put_control);
/*
* Sensors
*/
static void wf_sensor_release(struct kref *kref)
{
struct wf_sensor *sr = container_of(kref, struct wf_sensor, ref);
DBG("wf: Deleting sensor %s\n", sr->name);
if (sr->ops && sr->ops->release)
sr->ops->release(sr);
else
kfree(sr);
}
int wf_register_sensor(struct wf_sensor *new_sr)
{
struct wf_sensor *sr;
down(&wf_lock);
list_for_each_entry(sr, &wf_sensors, link) {
if (!strcmp(sr->name, new_sr->name)) {
printk(KERN_WARNING "windfarm: trying to register"
" duplicate sensor %s\n", sr->name);
up(&wf_lock);
return -EEXIST;
}
}
kref_init(&new_sr->ref);
list_add(&new_sr->link, &wf_sensors);
DBG("wf: Registered sensor %s\n", new_sr->name);
wf_notify(WF_EVENT_NEW_SENSOR, new_sr);
up(&wf_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wf_register_sensor);
void wf_unregister_sensor(struct wf_sensor *sr)
{
down(&wf_lock);
list_del(&sr->link);
up(&wf_lock);
DBG("wf: Unregistered sensor %s\n", sr->name);
wf_put_sensor(sr);
}
EXPORT_SYMBOL_GPL(wf_unregister_sensor);
struct wf_sensor * wf_find_sensor(const char *name)
{
struct wf_sensor *sr;
down(&wf_lock);
list_for_each_entry(sr, &wf_sensors, link) {
if (!strcmp(sr->name, name)) {
if (wf_get_sensor(sr))
sr = NULL;
up(&wf_lock);
return sr;
}
}
up(&wf_lock);
return NULL;
}
EXPORT_SYMBOL_GPL(wf_find_sensor);
int wf_get_sensor(struct wf_sensor *sr)
{
if (!try_module_get(sr->ops->owner))
return -ENODEV;
kref_get(&sr->ref);
return 0;
}
EXPORT_SYMBOL_GPL(wf_get_sensor);
void wf_put_sensor(struct wf_sensor *sr)
{
struct module *mod = sr->ops->owner;
kref_put(&sr->ref, wf_sensor_release);
module_put(mod);
}
EXPORT_SYMBOL_GPL(wf_put_sensor);
/*
* Client & notification
*/
int wf_register_client(struct notifier_block *nb)
{
int rc;
struct wf_control *ct;
struct wf_sensor *sr;
down(&wf_lock);
rc = notifier_chain_register(&wf_client_list, nb);
if (rc != 0)
goto bail;
wf_client_count++;
list_for_each_entry(ct, &wf_controls, link)
wf_notify(WF_EVENT_NEW_CONTROL, ct);
list_for_each_entry(sr, &wf_sensors, link)
wf_notify(WF_EVENT_NEW_SENSOR, sr);
if (wf_client_count == 1)
wf_start_thread();
bail:
up(&wf_lock);
return rc;
}
EXPORT_SYMBOL_GPL(wf_register_client);
int wf_unregister_client(struct notifier_block *nb)
{
down(&wf_lock);
notifier_chain_unregister(&wf_client_list, nb);
wf_client_count++;
if (wf_client_count == 0)
wf_stop_thread();
up(&wf_lock);
return 0;
}
EXPORT_SYMBOL_GPL(wf_unregister_client);
void wf_set_overtemp(void)
{
down(&wf_lock);
wf_overtemp++;
if (wf_overtemp == 1) {
printk(KERN_WARNING "windfarm: Overtemp condition detected !\n");
wf_overtemp_counter = 0;
wf_notify(WF_EVENT_OVERTEMP, NULL);
}
up(&wf_lock);
}
EXPORT_SYMBOL_GPL(wf_set_overtemp);
void wf_clear_overtemp(void)
{
down(&wf_lock);
WARN_ON(wf_overtemp == 0);
if (wf_overtemp == 0) {
up(&wf_lock);
return;
}
wf_overtemp--;
if (wf_overtemp == 0) {
printk(KERN_WARNING "windfarm: Overtemp condition cleared !\n");
wf_notify(WF_EVENT_NORMALTEMP, NULL);
}
up(&wf_lock);
}
EXPORT_SYMBOL_GPL(wf_clear_overtemp);
int wf_is_overtemp(void)
{
return (wf_overtemp != 0);
}
EXPORT_SYMBOL_GPL(wf_is_overtemp);
static struct platform_device wf_platform_device = {
.name = "windfarm",
};
static int __init windfarm_core_init(void)
{
DBG("wf: core loaded\n");
platform_device_register(&wf_platform_device);
return 0;
}
static void __exit windfarm_core_exit(void)
{
BUG_ON(wf_client_count != 0);
DBG("wf: core unloaded\n");
platform_device_unregister(&wf_platform_device);
}
module_init(windfarm_core_init);
module_exit(windfarm_core_exit);
MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("Core component of PowerMac thermal control");
MODULE_LICENSE("GPL");
drivers/macintosh/windfarm_cpufreq_clamp.c 0 → 100644
View file @ f093182d
#include <linux/config.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/wait.h>
#include <linux/cpufreq.h>
#include "windfarm.h"
#define VERSION "0.3"
static int clamped;
static struct wf_control *clamp_control;
static int clamp_notifier_call(struct notifier_block *self,
unsigned long event, void *data)
{
struct cpufreq_policy *p = data;
unsigned long max_freq;
if (event != CPUFREQ_ADJUST)
return 0;
max_freq = clamped ? (p->cpuinfo.min_freq) : (p->cpuinfo.max_freq);
cpufreq_verify_within_limits(p, 0, max_freq);
return 0;
}
static struct notifier_block clamp_notifier = {
.notifier_call = clamp_notifier_call,
};
static int clamp_set(struct wf_control *ct, s32 value)
{
if (value)
printk(KERN_INFO "windfarm: Clamping CPU frequency to "
"minimum !\n");
else
printk(KERN_INFO "windfarm: CPU frequency unclamped !\n");
clamped = value;
cpufreq_update_policy(0);
return 0;
}
static int clamp_get(struct wf_control *ct, s32 *value)
{
*value = clamped;
return 0;
}
static s32 clamp_min(struct wf_control *ct)
{
return 0;
}
static s32 clamp_max(struct wf_control *ct)
{
return 1;
}
static struct wf_control_ops clamp_ops = {
.set_value = clamp_set,
.get_value = clamp_get,
.get_min = clamp_min,
.get_max = clamp_max,
.owner = THIS_MODULE,
};
static int __init wf_cpufreq_clamp_init(void)
{
struct wf_control *clamp;
clamp = kmalloc(sizeof(struct wf_control), GFP_KERNEL);
if (clamp == NULL)
return -ENOMEM;
cpufreq_register_notifier(&clamp_notifier, CPUFREQ_POLICY_NOTIFIER);
clamp->ops = &clamp_ops;
clamp->name = "cpufreq-clamp";
if (wf_register_control(clamp))
goto fail;
clamp_control = clamp;
return 0;
fail:
kfree(clamp);
return -ENODEV;
}
static void __exit wf_cpufreq_clamp_exit(void)
{
if (clamp_control)
wf_unregister_control(clamp_control);
}
module_init(wf_cpufreq_clamp_init);
module_exit(wf_cpufreq_clamp_exit);
MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("CPU frequency clamp for PowerMacs thermal control");
MODULE_LICENSE("GPL");
drivers/macintosh/windfarm_lm75_sensor.c 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control. LM75 sensor
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/wait.h>
#include <linux/i2c.h>
#include <linux/i2c-dev.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sections.h>
#include "windfarm.h"
#define VERSION "0.1"
#undef DEBUG
#ifdef DEBUG
#define DBG(args...) printk(args)
#else
#define DBG(args...) do { } while(0)
#endif
struct wf_lm75_sensor {
int ds1775 : 1;
int inited : 1;
struct i2c_client i2c;
struct wf_sensor sens;
};
#define wf_to_lm75(c) container_of(c, struct wf_lm75_sensor, sens)
#define i2c_to_lm75(c) container_of(c, struct wf_lm75_sensor, i2c)
static int wf_lm75_attach(struct i2c_adapter *adapter);
static int wf_lm75_detach(struct i2c_client *client);
static struct i2c_driver wf_lm75_driver = {
.owner = THIS_MODULE,
.name = "wf_lm75",
.flags = I2C_DF_NOTIFY,
.attach_adapter = wf_lm75_attach,
.detach_client = wf_lm75_detach,
};
static int wf_lm75_get(struct wf_sensor *sr, s32 *value)
{
struct wf_lm75_sensor *lm = wf_to_lm75(sr);
s32 data;
if (lm->i2c.adapter == NULL)
return -ENODEV;
/* Init chip if necessary */
if (!lm->inited) {
u8 cfg_new, cfg = (u8)i2c_smbus_read_byte_data(&lm->i2c, 1);
DBG("wf_lm75: Initializing %s, cfg was: %02x\n",
sr->name, cfg);
/* clear shutdown bit, keep other settings as left by
* the firmware for now
*/
cfg_new = cfg & ~0x01;
i2c_smbus_write_byte_data(&lm->i2c, 1, cfg_new);
lm->inited = 1;
/* If we just powered it up, let's wait 200 ms */
msleep(200);
}
/* Read temperature register */
data = (s32)le16_to_cpu(i2c_smbus_read_word_data(&lm->i2c, 0));
data <<= 8;
*value = data;
return 0;
}
static void wf_lm75_release(struct wf_sensor *sr)
{
struct wf_lm75_sensor *lm = wf_to_lm75(sr);
/* check if client is registered and detach from i2c */
if (lm->i2c.adapter) {
i2c_detach_client(&lm->i2c);
lm->i2c.adapter = NULL;
}
kfree(lm);
}
static struct wf_sensor_ops wf_lm75_ops = {
.get_value = wf_lm75_get,
.release = wf_lm75_release,
.owner = THIS_MODULE,
};
static struct wf_lm75_sensor *wf_lm75_create(struct i2c_adapter *adapter,
u8 addr, int ds1775,
const char *loc)
{
struct wf_lm75_sensor *lm;
DBG("wf_lm75: creating %s device at address 0x%02x\n",
ds1775 ? "ds1775" : "lm75", addr);
lm = kmalloc(sizeof(struct wf_lm75_sensor), GFP_KERNEL);
if (lm == NULL)
return NULL;
memset(lm, 0, sizeof(struct wf_lm75_sensor));
/* Usual rant about sensor names not beeing very consistent in
* the device-tree, oh well ...
* Add more entries below as you deal with more setups
*/
if (!strcmp(loc, "Hard drive") || !strcmp(loc, "DRIVE BAY"))
lm->sens.name = "hd-temp";
else
goto fail;
lm->inited = 0;
lm->sens.ops = &wf_lm75_ops;
lm->ds1775 = ds1775;
lm->i2c.addr = (addr >> 1) & 0x7f;
lm->i2c.adapter = adapter;
lm->i2c.driver = &wf_lm75_driver;
strncpy(lm->i2c.name, lm->sens.name, I2C_NAME_SIZE-1);
if (i2c_attach_client(&lm->i2c)) {
printk(KERN_ERR "windfarm: failed to attach %s %s to i2c\n",
ds1775 ? "ds1775" : "lm75", lm->i2c.name);
goto fail;
}
if (wf_register_sensor(&lm->sens)) {
i2c_detach_client(&lm->i2c);
goto fail;
}
return lm;
fail:
kfree(lm);
return NULL;
}
static int wf_lm75_attach(struct i2c_adapter *adapter)
{
u8 bus_id;
struct device_node *smu, *bus, *dev;
/* We currently only deal with LM75's hanging off the SMU
* i2c busses. If we extend that driver to other/older
* machines, we should split this function into SMU-i2c,
* keywest-i2c, PMU-i2c, ...
*/
DBG("wf_lm75: adapter %s detected\n", adapter->name);
if (strncmp(adapter->name, "smu-i2c-", 8) != 0)
return 0;
smu = of_find_node_by_type(NULL, "smu");
if (smu == NULL)
return 0;
/* Look for the bus in the device-tree */
bus_id = (u8)simple_strtoul(adapter->name + 8, NULL, 16);
DBG("wf_lm75: bus ID is %x\n", bus_id);
/* Look for sensors subdir */
for (bus = NULL;
(bus = of_get_next_child(smu, bus)) != NULL;) {
u32 *reg;
if (strcmp(bus->name, "i2c"))
continue;
reg = (u32 *)get_property(bus, "reg", NULL);
if (reg == NULL)
continue;
if (bus_id == *reg)
break;
}
of_node_put(smu);
if (bus == NULL) {
printk(KERN_WARNING "windfarm: SMU i2c bus 0x%x not found"
" in device-tree !\n", bus_id);
return 0;
}
DBG("wf_lm75: bus found, looking for device...\n");
/* Now look for lm75(s) in there */
for (dev = NULL;
(dev = of_get_next_child(bus, dev)) != NULL;) {
const char *loc =
get_property(dev, "hwsensor-location", NULL);
u32 *reg = (u32 *)get_property(dev, "reg", NULL);
DBG(" dev: %s... (loc: %p, reg: %p)\n", dev->name, loc, reg);
if (loc == NULL || reg == NULL)
continue;
/* real lm75 */
if (device_is_compatible(dev, "lm75"))
wf_lm75_create(adapter, *reg, 0, loc);
/* ds1775 (compatible, better resolution */
else if (device_is_compatible(dev, "ds1775"))
wf_lm75_create(adapter, *reg, 1, loc);
}
of_node_put(bus);
return 0;
}
static int wf_lm75_detach(struct i2c_client *client)
{
struct wf_lm75_sensor *lm = i2c_to_lm75(client);
DBG("wf_lm75: i2c detatch called for %s\n", lm->sens.name);
/* Mark client detached */
lm->i2c.adapter = NULL;
/* release sensor */
wf_unregister_sensor(&lm->sens);
return 0;
}
static int __init wf_lm75_sensor_init(void)
{
int rc;
rc = i2c_add_driver(&wf_lm75_driver);
if (rc < 0)
return rc;
return 0;
}
static void __exit wf_lm75_sensor_exit(void)
{
i2c_del_driver(&wf_lm75_driver);
}
module_init(wf_lm75_sensor_init);
module_exit(wf_lm75_sensor_exit);
MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("LM75 sensor objects for PowerMacs thermal control");
MODULE_LICENSE("GPL");
drivers/macintosh/windfarm_pid.c 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control. Generic PID helpers
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/module.h>
#include "windfarm_pid.h"
#undef DEBUG
#ifdef DEBUG
#define DBG(args...) printk(args)
#else
#define DBG(args...) do { } while(0)
#endif
void wf_pid_init(struct wf_pid_state *st, struct wf_pid_param *param)
{
memset(st, 0, sizeof(struct wf_pid_state));
st->param = *param;
st->first = 1;
}
EXPORT_SYMBOL_GPL(wf_pid_init);
s32 wf_pid_run(struct wf_pid_state *st, s32 new_sample)
{
s64 error, integ, deriv;
s32 target;
int i, hlen = st->param.history_len;
/* Calculate error term */
error = new_sample - st->param.itarget;
/* Get samples into our history buffer */
if (st->first) {
for (i = 0; i < hlen; i++) {
st->samples[i] = new_sample;
st->errors[i] = error;
}
st->first = 0;
st->index = 0;
} else {
st->index = (st->index + 1) % hlen;
st->samples[st->index] = new_sample;
st->errors[st->index] = error;
}
/* Calculate integral term */
for (i = 0, integ = 0; i < hlen; i++)
integ += st->errors[(st->index + hlen - i) % hlen];
integ *= st->param.interval;
/* Calculate derivative term */
deriv = st->errors[st->index] -
st->errors[(st->index + hlen - 1) % hlen];
deriv /= st->param.interval;
/* Calculate target */
target = (s32)((integ * (s64)st->param.gr + deriv * (s64)st->param.gd +
error * (s64)st->param.gp) >> 36);
if (st->param.additive)
target += st->target;
target = max(target, st->param.min);
target = min(target, st->param.max);
st->target = target;
return st->target;
}
EXPORT_SYMBOL_GPL(wf_pid_run);
void wf_cpu_pid_init(struct wf_cpu_pid_state *st,
struct wf_cpu_pid_param *param)
{
memset(st, 0, sizeof(struct wf_cpu_pid_state));
st->param = *param;
st->first = 1;
}
EXPORT_SYMBOL_GPL(wf_cpu_pid_init);
s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 new_power, s32 new_temp)
{
s64 error, integ, deriv, prop;
s32 target, sval, adj;
int i, hlen = st->param.history_len;
/* Calculate error term */
error = st->param.pmaxadj - new_power;
/* Get samples into our history buffer */
if (st->first) {
for (i = 0; i < hlen; i++) {
st->powers[i] = new_power;
st->errors[i] = error;
}
st->temps[0] = st->temps[1] = new_temp;
st->first = 0;
st->index = st->tindex = 0;
} else {
st->index = (st->index + 1) % hlen;
st->powers[st->index] = new_power;
st->errors[st->index] = error;
st->tindex = (st->tindex + 1) % 2;
st->temps[st->tindex] = new_temp;
}
/* Calculate integral term */
for (i = 0, integ = 0; i < hlen; i++)
integ += st->errors[(st->index + hlen - i) % hlen];
integ *= st->param.interval;
integ *= st->param.gr;
sval = st->param.tmax - ((integ >> 20) & 0xffffffff);
adj = min(st->param.ttarget, sval);
DBG("integ: %lx, sval: %lx, adj: %lx\n", integ, sval, adj);
/* Calculate derivative term */
deriv = st->temps[st->tindex] -
st->temps[(st->tindex + 2 - 1) % 2];
deriv /= st->param.interval;
deriv *= st->param.gd;
/* Calculate proportional term */
prop = (new_temp - adj);
prop *= st->param.gp;
DBG("deriv: %lx, prop: %lx\n", deriv, prop);
/* Calculate target */
target = st->target + (s32)((deriv + prop) >> 36);
target = max(target, st->param.min);
target = min(target, st->param.max);
st->target = target;
return st->target;
}
EXPORT_SYMBOL_GPL(wf_cpu_pid_run);
drivers/macintosh/windfarm_pid.h 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control. Generic PID helpers
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*
* This is a pair of generic PID helpers that can be used by
* control loops. One is the basic PID implementation, the
* other one is more specifically tailored to the loops used
* for CPU control with 2 input sample types (temp and power)
*/
/*
* *** Simple PID ***
*/
#define WF_PID_MAX_HISTORY 32
/* This parameter array is passed to the PID algorithm. Currently,
* we don't support changing parameters on the fly as it's not needed
* but could be implemented (with necessary adjustment of the history
* buffer
*/
struct wf_pid_param {
int interval; /* Interval between samples in seconds */
int history_len; /* Size of history buffer */
int additive; /* 1: target relative to previous value */
s32 gd, gp, gr; /* PID gains */
s32 itarget; /* PID input target */
s32 min,max; /* min and max target values */
};
struct wf_pid_state {
int first; /* first run of the loop */
int index; /* index of current sample */
s32 target; /* current target value */
s32 samples[WF_PID_MAX_HISTORY]; /* samples history buffer */
s32 errors[WF_PID_MAX_HISTORY]; /* error history buffer */
struct wf_pid_param param;
};
extern void wf_pid_init(struct wf_pid_state *st, struct wf_pid_param *param);
extern s32 wf_pid_run(struct wf_pid_state *st, s32 sample);
/*
* *** CPU PID ***
*/
#define WF_CPU_PID_MAX_HISTORY 32
/* This parameter array is passed to the CPU PID algorithm. Currently,
* we don't support changing parameters on the fly as it's not needed
* but could be implemented (with necessary adjustment of the history
* buffer
*/
struct wf_cpu_pid_param {
int interval; /* Interval between samples in seconds */
int history_len; /* Size of history buffer */
s32 gd, gp, gr; /* PID gains */
s32 pmaxadj; /* PID max power adjust */
s32 ttarget; /* PID input target */
s32 tmax; /* PID input max */
s32 min,max; /* min and max target values */
};
struct wf_cpu_pid_state {
int first; /* first run of the loop */
int index; /* index of current power */
int tindex; /* index of current temp */
s32 target; /* current target value */
s32 powers[WF_PID_MAX_HISTORY]; /* power history buffer */
s32 errors[WF_PID_MAX_HISTORY]; /* error history buffer */
s32 temps[2]; /* temp. history buffer */
struct wf_cpu_pid_param param;
};
extern void wf_cpu_pid_init(struct wf_cpu_pid_state *st,
struct wf_cpu_pid_param *param);
extern s32 wf_cpu_pid_run(struct wf_cpu_pid_state *st, s32 power, s32 temp);
drivers/macintosh/windfarm_pm81.c 0 → 100644
View file @ f093182d
This diff is collapsed.
drivers/macintosh/windfarm_pm91.c 0 → 100644
View file @ f093182d
This diff is collapsed.
drivers/macintosh/windfarm_smu_controls.c 0 → 100644
View file @ f093182d
/*
* Windfarm PowerMac thermal control. SMU based controls
*
* (c) Copyright 2005 Benjamin Herrenschmidt, IBM Corp.
* <benh@kernel.crashing.org>
*
* Released under the term of the GNU GPL v2.
*/
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/wait.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/sections.h>
#include <asm/smu.h>
#include "windfarm.h"
#define VERSION "0.3"
#undef DEBUG
#ifdef DEBUG
#define DBG(args...) printk(args)
#else
#define DBG(args...) do { } while(0)
#endif
/*
* SMU fans control object
*/
static LIST_HEAD(smu_fans);
struct smu_fan_control {
struct list_head link;
int fan_type; /* 0 = rpm, 1 = pwm */
u32 reg; /* index in SMU */
s32 value; /* current value */
s32 min, max; /* min/max values */
struct wf_control ctrl;
};
#define to_smu_fan(c) container_of(c, struct smu_fan_control, ctrl)
static int smu_set_fan(int pwm, u8 id, u16 value)
{
struct smu_cmd cmd;
u8 buffer[16];
DECLARE_COMPLETION(comp);
int rc;
/* Fill SMU command structure */
cmd.cmd = SMU_CMD_FAN_COMMAND;
cmd.data_len = 14;
cmd.reply_len = 16;
cmd.data_buf = cmd.reply_buf = buffer;
cmd.status = 0;
cmd.done = smu_done_complete;
cmd.misc = &comp;
/* Fill argument buffer */
memset(buffer, 0, 16);
buffer[0] = pwm ? 0x10 : 0x00;
buffer[1] = 0x01 << id;
*((u16 *)&buffer[2 + id * 2]) = value;
rc = smu_queue_cmd(&cmd);
if (rc)
return rc;
wait_for_completion(&comp);
return cmd.status;
}
static void smu_fan_release(struct wf_control *ct)
{
struct smu_fan_control *fct = to_smu_fan(ct);
kfree(fct);
}
static int smu_fan_set(struct wf_control *ct, s32 value)
{
struct smu_fan_control *fct = to_smu_fan(ct);
if (value < fct->min)
value = fct->min;
if (value > fct->max)
value = fct->max;
fct->value = value;
return smu_set_fan(fct->fan_type, fct->reg, value);
}
static int smu_fan_get(struct wf_control *ct, s32 *value)
{
struct smu_fan_control *fct = to_smu_fan(ct);
*value = fct->value; /* todo: read from SMU */
return 0;
}
static s32 smu_fan_min(struct wf_control *ct)
{
struct smu_fan_control *fct = to_smu_fan(ct);
return fct->min;
}
static s32 smu_fan_max(struct wf_control *ct)
{
struct smu_fan_control *fct = to_smu_fan(ct);
return fct->max;
}
static struct wf_control_ops smu_fan_ops = {
.set_value = smu_fan_set,
.get_value = smu_fan_get,
.get_min = smu_fan_min,
.get_max = smu_fan_max,
.release = smu_fan_release,
.owner = THIS_MODULE,
};
static struct smu_fan_control *smu_fan_create(struct device_node *node,
int pwm_fan)
{
struct smu_fan_control *fct;
s32 *v; u32 *reg;
char *l;
fct = kmalloc(sizeof(struct smu_fan_control), GFP_KERNEL);
if (fct == NULL)
return NULL;
fct->ctrl.ops = &smu_fan_ops;
l = (char *)get_property(node, "location", NULL);
if (l == NULL)
goto fail;
fct->fan_type = pwm_fan;
fct->ctrl.type = pwm_fan ? WF_CONTROL_PWM_FAN : WF_CONTROL_RPM_FAN;
/* We use the name & location here the same way we do for SMU sensors,
* see the comment in windfarm_smu_sensors.c. The locations are a bit
* less consistent here between the iMac and the desktop models, but
* that is good enough for our needs for now at least.
*
* One problem though is that Apple seem to be inconsistent with case
* and the kernel doesn't have strcasecmp =P
*/
fct->ctrl.name = NULL;
/* Names used on desktop models */
if (!strcmp(l, "Rear Fan 0") || !strcmp(l, "Rear Fan") ||
!strcmp(l, "Rear fan 0") || !strcmp(l, "Rear fan"))
fct->ctrl.name = "cpu-rear-fan-0";
else if (!strcmp(l, "Rear Fan 1") || !strcmp(l, "Rear fan 1"))
fct->ctrl.name = "cpu-rear-fan-1";
else if (!strcmp(l, "Front Fan 0") || !strcmp(l, "Front Fan") ||
!strcmp(l, "Front fan 0") || !strcmp(l, "Front fan"))
fct->ctrl.name = "cpu-front-fan-0";
else if (!strcmp(l, "Front Fan 1") || !strcmp(l, "Front fan 1"))
fct->ctrl.name = "cpu-front-fan-1";
else if (!strcmp(l, "Slots Fan") || !strcmp(l, "Slots fan"))
fct->ctrl.name = "slots-fan";
else if (!strcmp(l, "Drive Bay") || !strcmp(l, "Drive bay"))
fct->ctrl.name = "drive-bay-fan";
/* Names used on iMac models */
if (!strcmp(l, "System Fan") || !strcmp(l, "System fan"))
fct->ctrl.name = "system-fan";
else if (!strcmp(l, "CPU Fan") || !strcmp(l, "CPU fan"))
fct->ctrl.name = "cpu-fan";
else if (!strcmp(l, "Hard Drive") || !strcmp(l, "Hard drive"))
fct->ctrl.name = "drive-bay-fan";
/* Unrecognized fan, bail out */
if (fct->ctrl.name == NULL)
goto fail;
/* Get min & max values*/
v = (s32 *)get_property(node, "min-value", NULL);
if (v == NULL)
goto fail;
fct->min = *v;
v = (s32 *)get_property(node, "max-value", NULL);
if (v == NULL)
goto fail;
fct->max = *v;
/* Get "reg" value */
reg = (u32 *)get_property(node, "reg", NULL);
if (reg == NULL)
goto fail;
fct->reg = *reg;
if (wf_register_control(&fct->ctrl))
goto fail;
return fct;
fail:
kfree(fct);
return NULL;
}
static int __init smu_controls_init(void)
{
struct device_node *smu, *fans, *fan;
if (!smu_present())
return -ENODEV;
smu = of_find_node_by_type(NULL, "smu");
if (smu == NULL)
return -ENODEV;
/* Look for RPM fans */
for (fans = NULL; (fans = of_get_next_child(smu, fans)) != NULL;)
if (!strcmp(fans->name, "rpm-fans"))
break;
for (fan = NULL;
fans && (fan = of_get_next_child(fans, fan)) != NULL;) {
struct smu_fan_control *fct;
fct = smu_fan_create(fan, 0);
if (fct == NULL) {
printk(KERN_WARNING "windfarm: Failed to create SMU "
"RPM fan %s\n", fan->name);
continue;
}
list_add(&fct->link, &smu_fans);
}
of_node_put(fans);
/* Look for PWM fans */
for (fans = NULL; (fans = of_get_next_child(smu, fans)) != NULL;)
if (!strcmp(fans->name, "pwm-fans"))
break;
for (fan = NULL;
fans && (fan = of_get_next_child(fans, fan)) != NULL;) {
struct smu_fan_control *fct;
fct = smu_fan_create(fan, 1);
if (fct == NULL) {
printk(KERN_WARNING "windfarm: Failed to create SMU "
"PWM fan %s\n", fan->name);
continue;
}
list_add(&fct->link, &smu_fans);
}
of_node_put(fans);
of_node_put(smu);
return 0;
}
static void __exit smu_controls_exit(void)
{
struct smu_fan_control *fct;
while (!list_empty(&smu_fans)) {
fct = list_entry(smu_fans.next, struct smu_fan_control, link);
list_del(&fct->link);
wf_unregister_control(&fct->ctrl);
}
}
module_init(smu_controls_init);
module_exit(smu_controls_exit);
MODULE_AUTHOR("Benjamin Herrenschmidt <benh@kernel.crashing.org>");
MODULE_DESCRIPTION("SMU control objects for PowerMacs thermal control");
MODULE_LICENSE("GPL");
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