powerpc: Remove FW_FEATURE ISERIES from arch code

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

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

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 5ab0b71531b..9d92ba04b03 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 14db29b18d0..ad0b751b0d7 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 7eb10fb96cd..2136f58a54e 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 eb804e15b29..45b367c8d8b 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 479752901ec..d45ec58703c 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 578f35f1872..ac12bd80ad9 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 41456ff55e1..0bb1f98613b 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 cce98d76e90..d0373bcb7c9 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 883e74c0d1b..0c683d376b1 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 f81c81b92f0..2c42cd72d0f 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 a6ebba56fdd..bb7cfecf278 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 b534bbac3f8..3e8c37a4e39 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 e22276cb67a..a538c80db2d 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 41e31642a86..9106ebb118f 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 d65e68f3cb2..6f01624f317 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 f92b9ef7340..214478d781a 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 7bc73af6c7b..5f3ef876ded 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 974a47b3c9b..68a9cbbab45 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;
 }