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-rw-r--r--arch/ppc64/kernel/Makefile2
-rw-r--r--arch/ppc64/kernel/cputable.c27
-rw-r--r--arch/ppc64/kernel/firmware.c47
-rw-r--r--arch/ppc64/kernel/pSeries_setup.c4
-rw-r--r--arch/ppc64/kernel/process.c9
-rw-r--r--arch/ppc64/kernel/sysfs.c2
-rw-r--r--arch/ppc64/kernel/time.c4
-rw-r--r--include/asm-ppc64/firmware.h20
8 files changed, 73 insertions, 42 deletions
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
index cbf87dcac92a..f4b3bfcc109d 100644
--- a/arch/ppc64/kernel/Makefile
+++ b/arch/ppc64/kernel/Makefile
@@ -11,7 +11,7 @@ obj-y := setup.o entry.o traps.o irq.o idle.o dma.o \
udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \
ptrace32.o signal32.o rtc.o init_task.o \
lmb.o cputable.o cpu_setup_power4.o idle_power4.o \
- iommu.o sysfs.o vdso.o pmc.o
+ iommu.o sysfs.o vdso.o pmc.o firmware.o
obj-y += vdso32/ vdso64/
obj-$(CONFIG_PPC_OF) += of_device.o
diff --git a/arch/ppc64/kernel/cputable.c b/arch/ppc64/kernel/cputable.c
index 6294fc7bd442..4847f2ac8c9f 100644
--- a/arch/ppc64/kernel/cputable.c
+++ b/arch/ppc64/kernel/cputable.c
@@ -5,7 +5,7 @@
*
* Modifications for ppc64:
* Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
- *
+ *
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
@@ -20,11 +20,9 @@
#include <linux/module.h>
#include <asm/cputable.h>
-#include <asm/firmware.h>
struct cpu_spec* cur_cpu_spec = NULL;
EXPORT_SYMBOL(cur_cpu_spec);
-unsigned long ppc64_firmware_features;
/* NOTE:
* Unlike ppc32, ppc64 will only call this once for the boot CPU, it's
@@ -244,26 +242,3 @@ struct cpu_spec cpu_specs[] = {
.cpu_setup = __setup_cpu_power4,
}
};
-
-firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = {
- {FW_FEATURE_PFT, "hcall-pft"},
- {FW_FEATURE_TCE, "hcall-tce"},
- {FW_FEATURE_SPRG0, "hcall-sprg0"},
- {FW_FEATURE_DABR, "hcall-dabr"},
- {FW_FEATURE_COPY, "hcall-copy"},
- {FW_FEATURE_ASR, "hcall-asr"},
- {FW_FEATURE_DEBUG, "hcall-debug"},
- {FW_FEATURE_PERF, "hcall-perf"},
- {FW_FEATURE_DUMP, "hcall-dump"},
- {FW_FEATURE_INTERRUPT, "hcall-interrupt"},
- {FW_FEATURE_MIGRATE, "hcall-migrate"},
- {FW_FEATURE_PERFMON, "hcall-perfmon"},
- {FW_FEATURE_CRQ, "hcall-crq"},
- {FW_FEATURE_VIO, "hcall-vio"},
- {FW_FEATURE_RDMA, "hcall-rdma"},
- {FW_FEATURE_LLAN, "hcall-lLAN"},
- {FW_FEATURE_BULK, "hcall-bulk"},
- {FW_FEATURE_XDABR, "hcall-xdabr"},
- {FW_FEATURE_MULTITCE, "hcall-multi-tce"},
- {FW_FEATURE_SPLPAR, "hcall-splpar"},
-};
diff --git a/arch/ppc64/kernel/firmware.c b/arch/ppc64/kernel/firmware.c
new file mode 100644
index 000000000000..d8432c0fb27d
--- /dev/null
+++ b/arch/ppc64/kernel/firmware.c
@@ -0,0 +1,47 @@
+/*
+ * arch/ppc64/kernel/firmware.c
+ *
+ * Extracted from cputable.c
+ *
+ * Copyright (C) 2001 Ben. Herrenschmidt (benh@kernel.crashing.org)
+ *
+ * Modifications for ppc64:
+ * Copyright (C) 2003 Dave Engebretsen <engebret@us.ibm.com>
+ * Copyright (C) 2005 Stephen Rothwell, IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+
+#include <asm/firmware.h>
+
+unsigned long ppc64_firmware_features;
+
+#ifdef CONFIG_PPC_PSERIES
+firmware_feature_t firmware_features_table[FIRMWARE_MAX_FEATURES] = {
+ {FW_FEATURE_PFT, "hcall-pft"},
+ {FW_FEATURE_TCE, "hcall-tce"},
+ {FW_FEATURE_SPRG0, "hcall-sprg0"},
+ {FW_FEATURE_DABR, "hcall-dabr"},
+ {FW_FEATURE_COPY, "hcall-copy"},
+ {FW_FEATURE_ASR, "hcall-asr"},
+ {FW_FEATURE_DEBUG, "hcall-debug"},
+ {FW_FEATURE_PERF, "hcall-perf"},
+ {FW_FEATURE_DUMP, "hcall-dump"},
+ {FW_FEATURE_INTERRUPT, "hcall-interrupt"},
+ {FW_FEATURE_MIGRATE, "hcall-migrate"},
+ {FW_FEATURE_PERFMON, "hcall-perfmon"},
+ {FW_FEATURE_CRQ, "hcall-crq"},
+ {FW_FEATURE_VIO, "hcall-vio"},
+ {FW_FEATURE_RDMA, "hcall-rdma"},
+ {FW_FEATURE_LLAN, "hcall-lLAN"},
+ {FW_FEATURE_BULK, "hcall-bulk"},
+ {FW_FEATURE_XDABR, "hcall-xdabr"},
+ {FW_FEATURE_MULTITCE, "hcall-multi-tce"},
+ {FW_FEATURE_SPLPAR, "hcall-splpar"},
+};
+#endif
diff --git a/arch/ppc64/kernel/pSeries_setup.c b/arch/ppc64/kernel/pSeries_setup.c
index 0058f32a3d89..7ae7a2ca1085 100644
--- a/arch/ppc64/kernel/pSeries_setup.c
+++ b/arch/ppc64/kernel/pSeries_setup.c
@@ -231,11 +231,9 @@ static void __init pSeries_setup_arch(void)
pSeries_nvram_init();
- if (firmware_has_feature(FW_FEATURE_SPLPAR))
- vpa_init(boot_cpuid);
-
/* Choose an idle loop */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ vpa_init(boot_cpuid);
if (get_paca()->lppaca.shared_proc) {
printk(KERN_INFO "Using shared processor idle loop\n");
ppc_md.idle_loop = pseries_shared_idle;
diff --git a/arch/ppc64/kernel/process.c b/arch/ppc64/kernel/process.c
index 9bad983333b1..7a7e027653ad 100644
--- a/arch/ppc64/kernel/process.c
+++ b/arch/ppc64/kernel/process.c
@@ -203,10 +203,9 @@ struct task_struct *__switch_to(struct task_struct *prev,
new_thread = &new->thread;
old_thread = &current->thread;
-/* Collect purr utilization data per process and per processor wise */
-/* purr is nothing but processor time base */
-
-#if defined(CONFIG_PPC_PSERIES)
+ /* Collect purr utilization data per process and per processor
+ * wise purr is nothing but processor time base
+ */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
long unsigned start_tb, current_tb;
@@ -215,8 +214,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
old_thread->accum_tb += (current_tb - start_tb);
new_thread->start_tb = current_tb;
}
-#endif
-
local_irq_save(flags);
last = _switch(old_thread, new_thread);
diff --git a/arch/ppc64/kernel/sysfs.c b/arch/ppc64/kernel/sysfs.c
index e399963521c0..eca15d25e026 100644
--- a/arch/ppc64/kernel/sysfs.c
+++ b/arch/ppc64/kernel/sysfs.c
@@ -153,11 +153,9 @@ void ppc64_enable_pmcs(void)
break;
}
-#ifdef CONFIG_PPC_PSERIES
/* instruct hypervisor to maintain PMCs */
if (firmware_has_feature(FW_FEATURE_SPLPAR))
get_paca()->lppaca.pmcregs_in_use = 1;
-#endif /* CONFIG_PPC_PSERIES */
}
#else
diff --git a/arch/ppc64/kernel/time.c b/arch/ppc64/kernel/time.c
index d523056fd660..1696e1b05bb9 100644
--- a/arch/ppc64/kernel/time.c
+++ b/arch/ppc64/kernel/time.c
@@ -371,13 +371,11 @@ int timer_interrupt(struct pt_regs * regs)
process_hvlpevents(regs);
#endif
-/* collect purr register values often, for accurate calculations */
-#if defined(CONFIG_PPC_PSERIES)
+ /* collect purr register values often, for accurate calculations */
if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
struct cpu_usage *cu = &__get_cpu_var(cpu_usage_array);
cu->current_tb = mfspr(SPRN_PURR);
}
-#endif
irq_exit();
diff --git a/include/asm-ppc64/firmware.h b/include/asm-ppc64/firmware.h
index 5bb5bf46bb4a..e3725f3c8ea6 100644
--- a/include/asm-ppc64/firmware.h
+++ b/include/asm-ppc64/firmware.h
@@ -45,6 +45,22 @@
#define FW_FEATURE_MULTITCE (1UL<<19)
#define FW_FEATURE_SPLPAR (1UL<<20)
+enum {
+ FW_FEATURE_PSERIES = FW_FEATURE_PFT | FW_FEATURE_TCE |
+ FW_FEATURE_SPRG0 | FW_FEATURE_DABR | FW_FEATURE_COPY |
+ FW_FEATURE_ASR | FW_FEATURE_DEBUG | FW_FEATURE_TERM |
+ FW_FEATURE_PERF | FW_FEATURE_DUMP | FW_FEATURE_INTERRUPT |
+ FW_FEATURE_MIGRATE | FW_FEATURE_PERFMON | FW_FEATURE_CRQ |
+ FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
+ FW_FEATURE_BULK | FW_FEATURE_XDABR | FW_FEATURE_MULTITCE |
+ FW_FEATURE_SPLPAR,
+ FW_FEATURE_POSSIBLE =
+#ifdef CONFIG_PPC_PSERIES
+ FW_FEATURE_PSERIES |
+#endif
+ 0,
+};
+
/* This is used to identify firmware features which are available
* to the kernel.
*/
@@ -52,15 +68,17 @@ extern unsigned long ppc64_firmware_features;
static inline unsigned long firmware_has_feature(unsigned long feature)
{
- return ppc64_firmware_features & feature;
+ return ppc64_firmware_features & feature & FW_FEATURE_POSSIBLE;
}
+#ifdef CONFIG_PPC_PSERIES
typedef struct {
unsigned long val;
char * name;
} firmware_feature_t;
extern firmware_feature_t firmware_features_table[];
+#endif
#endif /* __ASSEMBLY__ */
#endif /* __KERNEL__ */
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