[PATCH 2/5] powerpc: remove FW_FEATURE ISERIES from arch code

From: Stephen Rothwell
Date: Fri Mar 16 2012 - 00:23:31 EST

This is no longer selectable, so just remove all the dependent code.

Signed-off-by: Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
---
arch/powerpc/include/asm/abs_addr.h | 21 +------
arch/powerpc/include/asm/firmware.h | 9 ---
arch/powerpc/include/asm/time.h | 15 -----
arch/powerpc/kernel/irq.c | 14 ----
arch/powerpc/kernel/isa-bridge.c | 3 -
arch/powerpc/kernel/lparcfg.c | 108 ++------------------------------
arch/powerpc/kernel/paca.c | 12 +---
arch/powerpc/kernel/pci-common.c | 15 -----
arch/powerpc/kernel/sysfs.c | 7 +--
arch/powerpc/kernel/time.c | 108 +--------------------------------
arch/powerpc/lib/locks.c | 24 ++------
arch/powerpc/mm/hash_utils_64.c | 9 +--
arch/powerpc/mm/slb.c | 6 --
arch/powerpc/mm/stab.c | 9 ---
arch/powerpc/oprofile/common.c | 3 -
arch/powerpc/platforms/powernv/pci.c | 1 +
arch/powerpc/platforms/pseries/lpar.c | 1 +
arch/powerpc/xmon/xmon.c | 28 ---------
18 files changed, 26 insertions(+), 367 deletions(-)

diff --git a/arch/powerpc/include/asm/abs_addr.h b/arch/powerpc/include/asm/abs_addr.h
index 5ab0b71..9d92ba0 100644
--- a/arch/powerpc/include/asm/abs_addr.h
+++ b/arch/powerpc/include/asm/abs_addr.h
@@ -17,7 +17,6 @@
#include <asm/types.h>
#include <asm/page.h>
#include <asm/prom.h>
-#include <asm/firmware.h>

struct mschunks_map {
unsigned long num_chunks;
@@ -46,30 +45,12 @@ static inline unsigned long addr_to_chunk(unsigned long addr)

static inline unsigned long phys_to_abs(unsigned long pa)
{
- unsigned long chunk;
-
- /* This is a no-op on non-iSeries */
- if (!firmware_has_feature(FW_FEATURE_ISERIES))
- return pa;
-
- chunk = addr_to_chunk(pa);
-
- if (chunk < mschunks_map.num_chunks)
- chunk = mschunks_map.mapping[chunk];
-
- return chunk_to_addr(chunk) + (pa & MSCHUNKS_OFFSET_MASK);
+ return pa;
}

/* Convenience macros */
#define virt_to_abs(va) phys_to_abs(__pa(va))
#define abs_to_virt(aa) __va(aa)

-/*
- * Converts Virtual Address to Real Address for
- * Legacy iSeries Hypervisor calls
- */
-#define iseries_hv_addr(virtaddr) \
- (0x8000000000000000UL | virt_to_abs(virtaddr))
-
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_ABS_ADDR_H */
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 14db29b..ad0b751 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -41,7 +41,6 @@
#define FW_FEATURE_XDABR ASM_CONST(0x0000000000040000)
#define FW_FEATURE_MULTITCE ASM_CONST(0x0000000000080000)
#define FW_FEATURE_SPLPAR ASM_CONST(0x0000000000100000)
-#define FW_FEATURE_ISERIES ASM_CONST(0x0000000000200000)
#define FW_FEATURE_LPAR ASM_CONST(0x0000000000400000)
#define FW_FEATURE_PS3_LV1 ASM_CONST(0x0000000000800000)
#define FW_FEATURE_BEAT ASM_CONST(0x0000000001000000)
@@ -65,8 +64,6 @@ enum {
FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
FW_FEATURE_CMO | FW_FEATURE_VPHN | FW_FEATURE_XCMO,
FW_FEATURE_PSERIES_ALWAYS = 0,
- FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
- FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
FW_FEATURE_POWERNV_POSSIBLE = FW_FEATURE_OPAL | FW_FEATURE_OPALv2,
FW_FEATURE_POWERNV_ALWAYS = 0,
FW_FEATURE_PS3_POSSIBLE = FW_FEATURE_LPAR | FW_FEATURE_PS3_LV1,
@@ -79,9 +76,6 @@ enum {
#ifdef CONFIG_PPC_PSERIES
FW_FEATURE_PSERIES_POSSIBLE |
#endif
-#ifdef CONFIG_PPC_ISERIES
- FW_FEATURE_ISERIES_POSSIBLE |
-#endif
#ifdef CONFIG_PPC_POWERNV
FW_FEATURE_POWERNV_POSSIBLE |
#endif
@@ -99,9 +93,6 @@ enum {
#ifdef CONFIG_PPC_PSERIES
FW_FEATURE_PSERIES_ALWAYS &
#endif
-#ifdef CONFIG_PPC_ISERIES
- FW_FEATURE_ISERIES_ALWAYS &
-#endif
#ifdef CONFIG_PPC_POWERNV
FW_FEATURE_POWERNV_ALWAYS &
#endif
diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h
index 7eb10fb..2136f58 100644
--- a/arch/powerpc/include/asm/time.h
+++ b/arch/powerpc/include/asm/time.h
@@ -18,11 +18,6 @@
#include <linux/percpu.h>

#include <asm/processor.h>
-#ifdef CONFIG_PPC_ISERIES
-#include <asm/paca.h>
-#include <asm/firmware.h>
-#include <asm/iseries/hv_call.h>
-#endif

/* time.c */
extern unsigned long tb_ticks_per_jiffy;
@@ -167,15 +162,6 @@ static inline void set_dec(int val)
#ifndef CONFIG_BOOKE
--val;
#endif
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES) &&
- get_lppaca()->shared_proc) {
- get_lppaca()->virtual_decr = val;
- if (get_dec() > val)
- HvCall_setVirtualDecr();
- return;
- }
-#endif
mtspr(SPRN_DEC, val);
#endif /* not 40x or 8xx_CPU6 */
}
@@ -217,7 +203,6 @@ DECLARE_PER_CPU(struct cpu_usage, cpu_usage_array);
#endif

extern void secondary_cpu_time_init(void);
-extern void iSeries_time_init_early(void);

DECLARE_PER_CPU(u64, decrementers_next_tb);

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index eb804e1..45b367c 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -211,11 +211,6 @@ notrace void arch_local_irq_restore(unsigned long en)
* External interrupt events on non-iseries will have caused
* interrupts to be hard-disabled, so there is no problem, we
* cannot have preempted.
- *
- * That leaves us with EEs on iSeries or decrementer interrupts,
- * which I decided to safely ignore. The preemption would have
- * itself been the result of an interrupt, upon which return we
- * will have checked for pending events on the old CPU.
*/
irq_happened = get_irq_happened();
if (!irq_happened)
@@ -458,15 +453,6 @@ void do_IRQ(struct pt_regs *regs)
irq_exit();
set_irq_regs(old_regs);

-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES) &&
- get_lppaca()->int_dword.fields.decr_int) {
- get_lppaca()->int_dword.fields.decr_int = 0;
- /* Signal a fake decrementer interrupt */
- timer_interrupt(regs);
- }
-#endif
-
trace_irq_exit(regs);
}

diff --git a/arch/powerpc/kernel/isa-bridge.c b/arch/powerpc/kernel/isa-bridge.c
index 4797529..d45ec58 100644
--- a/arch/powerpc/kernel/isa-bridge.c
+++ b/arch/powerpc/kernel/isa-bridge.c
@@ -29,7 +29,6 @@
#include <asm/pci-bridge.h>
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
-#include <asm/firmware.h>

unsigned long isa_io_base; /* NULL if no ISA bus */
EXPORT_SYMBOL(isa_io_base);
@@ -261,8 +260,6 @@ static struct notifier_block isa_bridge_notifier = {
*/
static int __init isa_bridge_init(void)
{
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return 0;
bus_register_notifier(&pci_bus_type, &isa_bridge_notifier);
return 0;
}
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 578f35f..ac12bd8 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -26,7 +26,6 @@
#include <linux/seq_file.h>
#include <linux/slab.h>
#include <asm/uaccess.h>
-#include <asm/iseries/hv_lp_config.h>
#include <asm/lppaca.h>
#include <asm/hvcall.h>
#include <asm/firmware.h>
@@ -55,80 +54,14 @@ static unsigned long get_purr(void)
int cpu;

for_each_possible_cpu(cpu) {
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- sum_purr += lppaca_of(cpu).emulated_time_base;
- else {
- struct cpu_usage *cu;
+ struct cpu_usage *cu;

- cu = &per_cpu(cpu_usage_array, cpu);
- sum_purr += cu->current_tb;
- }
+ cu = &per_cpu(cpu_usage_array, cpu);
+ sum_purr += cu->current_tb;
}
return sum_purr;
}

-#ifdef CONFIG_PPC_ISERIES
-
-/*
- * Methods used to fetch LPAR data when running on an iSeries platform.
- */
-static int iseries_lparcfg_data(struct seq_file *m, void *v)
-{
- unsigned long pool_id;
- int shared, entitled_capacity, max_entitled_capacity;
- int processors, max_processors;
- unsigned long purr = get_purr();
-
- shared = (int)(local_paca->lppaca_ptr->shared_proc);
-
- seq_printf(m, "system_active_processors=%d\n",
- (int)HvLpConfig_getSystemPhysicalProcessors());
-
- seq_printf(m, "system_potential_processors=%d\n",
- (int)HvLpConfig_getSystemPhysicalProcessors());
-
- processors = (int)HvLpConfig_getPhysicalProcessors();
- seq_printf(m, "partition_active_processors=%d\n", processors);
-
- max_processors = (int)HvLpConfig_getMaxPhysicalProcessors();
- seq_printf(m, "partition_potential_processors=%d\n", max_processors);
-
- if (shared) {
- entitled_capacity = HvLpConfig_getSharedProcUnits();
- max_entitled_capacity = HvLpConfig_getMaxSharedProcUnits();
- } else {
- entitled_capacity = processors * 100;
- max_entitled_capacity = max_processors * 100;
- }
- seq_printf(m, "partition_entitled_capacity=%d\n", entitled_capacity);
-
- seq_printf(m, "partition_max_entitled_capacity=%d\n",
- max_entitled_capacity);
-
- if (shared) {
- pool_id = HvLpConfig_getSharedPoolIndex();
- seq_printf(m, "pool=%d\n", (int)pool_id);
- seq_printf(m, "pool_capacity=%d\n",
- (int)(HvLpConfig_getNumProcsInSharedPool(pool_id) *
- 100));
- seq_printf(m, "purr=%ld\n", purr);
- }
-
- seq_printf(m, "shared_processor_mode=%d\n", shared);
-
- return 0;
-}
-
-#else /* CONFIG_PPC_ISERIES */
-
-static int iseries_lparcfg_data(struct seq_file *m, void *v)
-{
- return 0;
-}
-
-#endif /* CONFIG_PPC_ISERIES */
-
-#ifdef CONFIG_PPC_PSERIES
/*
* Methods used to fetch LPAR data when running on a pSeries platform.
*/
@@ -648,8 +581,7 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
u8 new_weight, *new_weight_ptr = &new_weight;
ssize_t retval;

- if (!firmware_has_feature(FW_FEATURE_SPLPAR) ||
- firmware_has_feature(FW_FEATURE_ISERIES))
+ if (!firmware_has_feature(FW_FEATURE_SPLPAR))
return -EINVAL;

if (count > kbuf_sz)
@@ -709,21 +641,6 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
return retval;
}

-#else /* CONFIG_PPC_PSERIES */
-
-static int pseries_lparcfg_data(struct seq_file *m, void *v)
-{
- return 0;
-}
-
-static ssize_t lparcfg_write(struct file *file, const char __user * buf,
- size_t count, loff_t * off)
-{
- return -EINVAL;
-}
-
-#endif /* CONFIG_PPC_PSERIES */
-
static int lparcfg_data(struct seq_file *m, void *v)
{
struct device_node *rootdn;
@@ -738,19 +655,11 @@ static int lparcfg_data(struct seq_file *m, void *v)
rootdn = of_find_node_by_path("/");
if (rootdn) {
tmp = of_get_property(rootdn, "model", NULL);
- if (tmp) {
+ if (tmp)
model = tmp;
- /* Skip "IBM," - see platforms/iseries/dt.c */
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- model += 4;
- }
tmp = of_get_property(rootdn, "system-id", NULL);
- if (tmp) {
+ if (tmp)
system_id = tmp;
- /* Skip "IBM," - see platforms/iseries/dt.c */
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- system_id += 4;
- }
lp_index_ptr = of_get_property(rootdn, "ibm,partition-no",
NULL);
if (lp_index_ptr)
@@ -761,8 +670,6 @@ static int lparcfg_data(struct seq_file *m, void *v)
seq_printf(m, "system_type=%s\n", model);
seq_printf(m, "partition_id=%d\n", (int)lp_index);

- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return iseries_lparcfg_data(m, v);
return pseries_lparcfg_data(m, v);
}

@@ -786,8 +693,7 @@ static int __init lparcfg_init(void)
umode_t mode = S_IRUSR | S_IRGRP | S_IROTH;

/* Allow writing if we have FW_FEATURE_SPLPAR */
- if (firmware_has_feature(FW_FEATURE_SPLPAR) &&
- !firmware_has_feature(FW_FEATURE_ISERIES))
+ if (firmware_has_feature(FW_FEATURE_SPLPAR))
mode |= S_IWUSR;

ent = proc_create("powerpc/lparcfg", mode, NULL, &lparcfg_fops);
diff --git a/arch/powerpc/kernel/paca.c b/arch/powerpc/kernel/paca.c
index 41456ff..0bb1f98 100644
--- a/arch/powerpc/kernel/paca.c
+++ b/arch/powerpc/kernel/paca.c
@@ -11,13 +11,10 @@
#include <linux/export.h>
#include <linux/memblock.h>

-#include <asm/firmware.h>
#include <asm/lppaca.h>
#include <asm/paca.h>
#include <asm/sections.h>
#include <asm/pgtable.h>
-#include <asm/iseries/lpar_map.h>
-#include <asm/iseries/hv_types.h>
#include <asm/kexec.h>

/* This symbol is provided by the linker - let it fill in the paca
@@ -30,8 +27,8 @@ extern unsigned long __toc_start;
* The structure which the hypervisor knows about - this structure
* should not cross a page boundary. The vpa_init/register_vpa call
* is now known to fail if the lppaca structure crosses a page
- * boundary. The lppaca is also used on legacy iSeries and POWER5
- * pSeries boxes. The lppaca is 640 bytes long, and cannot readily
+ * boundary. The lppaca is also used on POWER5 pSeries boxes.
+ * The lppaca is 640 bytes long, and cannot readily
* change since the hypervisor knows its layout, so a 1kB alignment
* will suffice to ensure that it doesn't cross a page boundary.
*/
@@ -183,12 +180,9 @@ void __init allocate_pacas(void)
/*
* We can't take SLB misses on the paca, and we want to access them
* in real mode, so allocate them within the RMA and also within
- * the first segment. On iSeries they must be within the area mapped
- * by the HV, which is HvPagesToMap * HVPAGESIZE bytes.
+ * the first segment.
*/
limit = min(0x10000000ULL, ppc64_rma_size);
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- limit = min(limit, HvPagesToMap * HVPAGESIZE);

paca_size = PAGE_ALIGN(sizeof(struct paca_struct) * nr_cpu_ids);

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index cce98d7..d0373bc 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -38,7 +38,6 @@
#include <asm/byteorder.h>
#include <asm/machdep.h>
#include <asm/ppc-pci.h>
-#include <asm/firmware.h>
#include <asm/eeh.h>

static DEFINE_SPINLOCK(hose_spinlock);
@@ -219,20 +218,6 @@ static int pci_read_irq_line(struct pci_dev *pci_dev)
struct of_irq oirq;
unsigned int virq;

- /* The current device-tree that iSeries generates from the HV
- * PCI informations doesn't contain proper interrupt routing,
- * and all the fallback would do is print out crap, so we
- * don't attempt to resolve the interrupts here at all, some
- * iSeries specific fixup does it.
- *
- * In the long run, we will hopefully fix the generated device-tree
- * instead.
- */
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return -1;
-#endif
-
pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev));

#ifdef DEBUG
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 883e74c..0c683d3 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -12,7 +12,6 @@
#include <asm/current.h>
#include <asm/processor.h>
#include <asm/cputable.h>
-#include <asm/firmware.h>
#include <asm/hvcall.h>
#include <asm/prom.h>
#include <asm/machdep.h>
@@ -341,8 +340,7 @@ static void __cpuinit register_cpu_online(unsigned int cpu)
int i, nattrs;

#ifdef CONFIG_PPC64
- if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
- cpu_has_feature(CPU_FTR_SMT))
+ if (cpu_has_feature(CPU_FTR_SMT))
device_create_file(s, &dev_attr_smt_snooze_delay);
#endif

@@ -414,8 +412,7 @@ static void unregister_cpu_online(unsigned int cpu)
BUG_ON(!c->hotpluggable);

#ifdef CONFIG_PPC64
- if (!firmware_has_feature(FW_FEATURE_ISERIES) &&
- cpu_has_feature(CPU_FTR_SMT))
+ if (cpu_has_feature(CPU_FTR_SMT))
device_remove_file(s, &dev_attr_smt_snooze_delay);
#endif

diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index f81c81b..2c42cd7 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -17,8 +17,7 @@
*
* TODO (not necessarily in this file):
* - improve precision and reproducibility of timebase frequency
- * measurement at boot time. (for iSeries, we calibrate the timebase
- * against the Titan chip's clock.)
+ * measurement at boot time.
* - for astronomical applications: add a new function to get
* non ambiguous timestamps even around leap seconds. This needs
* a new timestamp format and a good name.
@@ -70,10 +69,6 @@
#include <asm/vdso_datapage.h>
#include <asm/firmware.h>
#include <asm/cputime.h>
-#ifdef CONFIG_PPC_ISERIES
-#include <asm/iseries/it_lp_queue.h>
-#include <asm/iseries/hv_call_xm.h>
-#endif

/* powerpc clocksource/clockevent code */

@@ -117,14 +112,6 @@ static struct clock_event_device decrementer_clockevent = {
DEFINE_PER_CPU(u64, decrementers_next_tb);
static DEFINE_PER_CPU(struct clock_event_device, decrementers);

-#ifdef CONFIG_PPC_ISERIES
-static unsigned long __initdata iSeries_recal_titan;
-static signed long __initdata iSeries_recal_tb;
-
-/* Forward declaration is only needed for iSereis compiles */
-static void __init clocksource_init(void);
-#endif
-
#define XSEC_PER_SEC (1024*1024)

#ifdef CONFIG_PPC64
@@ -423,74 +410,6 @@ unsigned long profile_pc(struct pt_regs *regs)
EXPORT_SYMBOL(profile_pc);
#endif

-#ifdef CONFIG_PPC_ISERIES
-
-/*
- * This function recalibrates the timebase based on the 49-bit time-of-day
- * value in the Titan chip. The Titan is much more accurate than the value
- * returned by the service processor for the timebase frequency.
- */
-
-static int __init iSeries_tb_recal(void)
-{
- unsigned long titan, tb;
-
- /* Make sure we only run on iSeries */
- if (!firmware_has_feature(FW_FEATURE_ISERIES))
- return -ENODEV;
-
- tb = get_tb();
- titan = HvCallXm_loadTod();
- if ( iSeries_recal_titan ) {
- unsigned long tb_ticks = tb - iSeries_recal_tb;
- unsigned long titan_usec = (titan - iSeries_recal_titan) >> 12;
- unsigned long new_tb_ticks_per_sec = (tb_ticks * USEC_PER_SEC)/titan_usec;
- unsigned long new_tb_ticks_per_jiffy =
- DIV_ROUND_CLOSEST(new_tb_ticks_per_sec, HZ);
- long tick_diff = new_tb_ticks_per_jiffy - tb_ticks_per_jiffy;
- char sign = '+';
- /* make sure tb_ticks_per_sec and tb_ticks_per_jiffy are consistent */
- new_tb_ticks_per_sec = new_tb_ticks_per_jiffy * HZ;
-
- if ( tick_diff < 0 ) {
- tick_diff = -tick_diff;
- sign = '-';
- }
- if ( tick_diff ) {
- if ( tick_diff < tb_ticks_per_jiffy/25 ) {
- printk( "Titan recalibrate: new tb_ticks_per_jiffy = %lu (%c%ld)\n",
- new_tb_ticks_per_jiffy, sign, tick_diff );
- tb_ticks_per_jiffy = new_tb_ticks_per_jiffy;
- tb_ticks_per_sec = new_tb_ticks_per_sec;
- calc_cputime_factors();
- vdso_data->tb_ticks_per_sec = tb_ticks_per_sec;
- setup_cputime_one_jiffy();
- }
- else {
- printk( "Titan recalibrate: FAILED (difference > 4 percent)\n"
- " new tb_ticks_per_jiffy = %lu\n"
- " old tb_ticks_per_jiffy = %lu\n",
- new_tb_ticks_per_jiffy, tb_ticks_per_jiffy );
- }
- }
- }
- iSeries_recal_titan = titan;
- iSeries_recal_tb = tb;
-
- /* Called here as now we know accurate values for the timebase */
- clocksource_init();
- return 0;
-}
-late_initcall(iSeries_tb_recal);
-
-/* Called from platform early init */
-void __init iSeries_time_init_early(void)
-{
- iSeries_recal_tb = get_tb();
- iSeries_recal_titan = HvCallXm_loadTod();
-}
-#endif /* CONFIG_PPC_ISERIES */
-
#ifdef CONFIG_IRQ_WORK

/*
@@ -547,16 +466,6 @@ void arch_irq_work_raise(void)
#endif /* CONFIG_IRQ_WORK */

/*
- * For iSeries shared processors, we have to let the hypervisor
- * set the hardware decrementer. We set a virtual decrementer
- * in the lppaca and call the hypervisor if the virtual
- * decrementer is less than the current value in the hardware
- * decrementer. (almost always the new decrementer value will
- * be greater than the current hardware decementer so the hypervisor
- * call will not be needed)
- */
-
-/*
* timer_interrupt - gets called when the decrementer overflows,
* with interrupts disabled.
*/
@@ -599,20 +508,10 @@ void timer_interrupt(struct pt_regs * regs)
irq_work_run();
}

-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- get_lppaca()->int_dword.fields.decr_int = 0;
-#endif
-
*next_tb = ~(u64)0;
if (evt->event_handler)
evt->event_handler(evt);

-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES) && hvlpevent_is_pending())
- process_hvlpevents();
-#endif
-
#ifdef CONFIG_PPC64
/* collect purr register values often, for accurate calculations */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
@@ -984,9 +883,8 @@ void __init time_init(void)
*/
start_cpu_decrementer();

- /* Register the clocksource, if we're not running on iSeries */
- if (!firmware_has_feature(FW_FEATURE_ISERIES))
- clocksource_init();
+ /* Register the clocksource */
+ clocksource_init();

init_decrementer_clockevent();
}
diff --git a/arch/powerpc/lib/locks.c b/arch/powerpc/lib/locks.c
index a6ebba5..bb7cfec 100644
--- a/arch/powerpc/lib/locks.c
+++ b/arch/powerpc/lib/locks.c
@@ -19,11 +19,9 @@
#include <linux/smp.h>

/* waiting for a spinlock... */
-#if defined(CONFIG_PPC_SPLPAR) || defined(CONFIG_PPC_ISERIES)
+#if defined(CONFIG_PPC_SPLPAR)
#include <asm/hvcall.h>
-#include <asm/iseries/hv_call.h>
#include <asm/smp.h>
-#include <asm/firmware.h>

void __spin_yield(arch_spinlock_t *lock)
{
@@ -40,14 +38,8 @@ void __spin_yield(arch_spinlock_t *lock)
rmb();
if (lock->slock != lock_value)
return; /* something has changed */
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#ifdef CONFIG_PPC_SPLPAR
- else
- plpar_hcall_norets(H_CONFER,
- get_hard_smp_processor_id(holder_cpu), yield_count);
-#endif
+ plpar_hcall_norets(H_CONFER,
+ get_hard_smp_processor_id(holder_cpu), yield_count);
}

/*
@@ -71,14 +63,8 @@ void __rw_yield(arch_rwlock_t *rw)
rmb();
if (rw->lock != lock_value)
return; /* something has changed */
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- HvCall2(HvCallBaseYieldProcessor, HvCall_YieldToProc,
- ((u64)holder_cpu << 32) | yield_count);
-#ifdef CONFIG_PPC_SPLPAR
- else
- plpar_hcall_norets(H_CONFER,
- get_hard_smp_processor_id(holder_cpu), yield_count);
-#endif
+ plpar_hcall_norets(H_CONFER,
+ get_hard_smp_processor_id(holder_cpu), yield_count);
}
#endif

diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index b534bba..3e8c37a 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -56,6 +56,7 @@
#include <asm/udbg.h>
#include <asm/code-patching.h>
#include <asm/fadump.h>
+#include <asm/firmware.h>

#ifdef DEBUG
#define DBG(fmt...) udbg_printf(fmt)
@@ -756,12 +757,9 @@ void __init early_init_mmu(void)
*/
htab_initialize();

- /* Initialize stab / SLB management except on iSeries
- */
+ /* Initialize stab / SLB management */
if (mmu_has_feature(MMU_FTR_SLB))
slb_initialize();
- else if (!firmware_has_feature(FW_FEATURE_ISERIES))
- stab_initialize(get_paca()->stab_real);
}

#ifdef CONFIG_SMP
@@ -772,8 +770,7 @@ void __cpuinit early_init_mmu_secondary(void)
mtspr(SPRN_SDR1, _SDR1);

/* Initialize STAB/SLB. We use a virtual address as it works
- * in real mode on pSeries and we want a virtual address on
- * iSeries anyway
+ * in real mode on pSeries.
*/
if (mmu_has_feature(MMU_FTR_SLB))
slb_initialize();
diff --git a/arch/powerpc/mm/slb.c b/arch/powerpc/mm/slb.c
index e22276c..a538c80 100644
--- a/arch/powerpc/mm/slb.c
+++ b/arch/powerpc/mm/slb.c
@@ -21,7 +21,6 @@
#include <asm/cputable.h>
#include <asm/cacheflush.h>
#include <asm/smp.h>
-#include <asm/firmware.h>
#include <linux/compiler.h>
#include <asm/udbg.h>
#include <asm/code-patching.h>
@@ -307,11 +306,6 @@ void slb_initialize(void)

get_paca()->stab_rr = SLB_NUM_BOLTED;

- /* On iSeries the bolted entries have already been set up by
- * the hypervisor from the lparMap data in head.S */
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return;
-
lflags = SLB_VSID_KERNEL | linear_llp;
vflags = SLB_VSID_KERNEL | vmalloc_llp;

diff --git a/arch/powerpc/mm/stab.c b/arch/powerpc/mm/stab.c
index 41e3164..9106ebb 100644
--- a/arch/powerpc/mm/stab.c
+++ b/arch/powerpc/mm/stab.c
@@ -21,8 +21,6 @@
#include <asm/cputable.h>
#include <asm/prom.h>
#include <asm/abs_addr.h>
-#include <asm/firmware.h>
-#include <asm/iseries/hv_call.h>

struct stab_entry {
unsigned long esid_data;
@@ -285,12 +283,5 @@ void stab_initialize(unsigned long stab)
/* Set ASR */
stabreal = get_paca()->stab_real | 0x1ul;

-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES)) {
- HvCall1(HvCallBaseSetASR, stabreal);
- return;
- }
-#endif /* CONFIG_PPC_ISERIES */
-
mtspr(SPRN_ASR, stabreal);
}
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index d65e68f..6f01624 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -195,9 +195,6 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
if (!cur_cpu_spec->oprofile_cpu_type)
return -ENODEV;

- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return -ENODEV;
-
switch (cur_cpu_spec->oprofile_type) {
#ifdef CONFIG_PPC_BOOK3S_64
#ifdef CONFIG_OPROFILE_CELL
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index f92b9ef..214478d 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -31,6 +31,7 @@
#include <asm/iommu.h>
#include <asm/tce.h>
#include <asm/abs_addr.h>
+#include <asm/firmware.h>

#include "powernv.h"
#include "pci.h"
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 7bc73af..5f3ef87 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -41,6 +41,7 @@
#include <asm/udbg.h>
#include <asm/smp.h>
#include <asm/trace.h>
+#include <asm/firmware.h>

#include "plpar_wrappers.h"
#include "pseries.h"
diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c
index 974a47b..68a9cbb 100644
--- a/arch/powerpc/xmon/xmon.c
+++ b/arch/powerpc/xmon/xmon.c
@@ -39,7 +39,6 @@
#include <asm/irq_regs.h>
#include <asm/spu.h>
#include <asm/spu_priv1.h>
-#include <asm/firmware.h>
#include <asm/setjmp.h>
#include <asm/reg.h>

@@ -1635,25 +1634,6 @@ static void super_regs(void)
mfspr(SPRN_DEC), mfspr(SPRN_SPRG2));
printf("sp = "REG" sprg3= "REG"\n", sp, mfspr(SPRN_SPRG3));
printf("toc = "REG" dar = "REG"\n", toc, mfspr(SPRN_DAR));
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES)) {
- struct paca_struct *ptrPaca;
- struct lppaca *ptrLpPaca;
-
- /* Dump out relevant Paca data areas. */
- printf("Paca: \n");
- ptrPaca = local_paca;
-
- printf(" Local Processor Control Area (LpPaca): \n");
- ptrLpPaca = ptrPaca->lppaca_ptr;
- printf(" Saved Srr0=%.16lx Saved Srr1=%.16lx \n",
- ptrLpPaca->saved_srr0, ptrLpPaca->saved_srr1);
- printf(" Saved Gpr3=%.16lx Saved Gpr4=%.16lx \n",
- ptrLpPaca->saved_gpr3, ptrLpPaca->saved_gpr4);
- printf(" Saved Gpr5=%.16lx \n",
- ptrLpPaca->gpr5_dword.saved_gpr5);
- }
-#endif

return;
}
@@ -2856,10 +2836,6 @@ static void dump_tlb_book3e(void)

static void xmon_init(int enable)
{
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return;
-#endif
if (enable) {
__debugger = xmon;
__debugger_ipi = xmon_ipi;
@@ -2896,10 +2872,6 @@ static struct sysrq_key_op sysrq_xmon_op = {

static int __init setup_xmon_sysrq(void)
{
-#ifdef CONFIG_PPC_ISERIES
- if (firmware_has_feature(FW_FEATURE_ISERIES))
- return 0;
-#endif
register_sysrq_key('x', &sysrq_xmon_op);
return 0;
}
--
1.7.9.1

--
Cheers,
Stephen Rothwell sfr@xxxxxxxxxxxxxxxx
http://www.canb.auug.org.au/~sfr/

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