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authorLinus Torvalds <torvalds@linux-foundation.org>2010-07-08 08:05:43 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-07-08 08:05:43 -0700
commit31016e9941be85e8c487b1f3c45d253eda356715 (patch)
treef2984c3b651a72d8b160b7d7df545c01af6bef40
parent67415020950046e32f520c1447e79ebebbf447ac (diff)
parentbf23690b89b731468478c21eb07bbb645cc66ead (diff)
downloadlinux-linaro-31016e9941be85e8c487b1f3c45d253eda356715.tar.gz
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix userspace build of ptrace.h powerpc: Fix default_machine_crash_shutdown #ifdef botch powerpc: Fix logic error in fixup_irqs powerpc/iseries: Fix possible null pointer dereference in iSeries_pcibios_fixup_resources powerpc: Linux cannot run with 0 cores powerpc: Fix feature-fixup tests for gcc 4.5 powerpc: Disable SPARSE_IRQ by default powerpc: Fix compile errors in prom_init_check for gcc 4.5 powerpc: Fix module building for gcc 4.5 and 64 bit powerpc/perf_event: Fix for power_pmu_disable()
-rw-r--r--arch/powerpc/Kconfig4
-rw-r--r--arch/powerpc/Makefile4
-rw-r--r--arch/powerpc/include/asm/ptrace.h32
-rw-r--r--arch/powerpc/kernel/crash.c2
-rw-r--r--arch/powerpc/kernel/irq.c5
-rw-r--r--arch/powerpc/kernel/perf_event.c5
-rw-r--r--arch/powerpc/kernel/prom_init.c2
-rw-r--r--arch/powerpc/kernel/prom_init_check.sh6
-rw-r--r--arch/powerpc/lib/Makefile4
-rw-r--r--arch/powerpc/lib/crtsavres.S129
-rw-r--r--arch/powerpc/lib/feature-fixups.c17
-rw-r--r--arch/powerpc/platforms/iseries/pci.c6
-rw-r--r--scripts/mod/modpost.c5
13 files changed, 184 insertions, 37 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 328774bd41e..6506bf4fbff 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -400,7 +400,7 @@ config IRQ_ALL_CPUS
config SPARSE_IRQ
bool "Support sparse irq numbering"
- default y
+ default n
help
This enables support for sparse irqs. This is useful for distro
kernels that want to define a high CONFIG_NR_CPUS value but still
@@ -409,7 +409,7 @@ config SPARSE_IRQ
( Sparse IRQs can also be beneficial on NUMA boxes, as they spread
out the irq_desc[] array in a more NUMA-friendly way. )
- If you don't know what to do here, say Y.
+ If you don't know what to do here, say N.
config NUMA
bool "NUMA support"
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 42dcd3f4ad7..77cfe7a29e2 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -92,10 +92,10 @@ endif
else
KBUILD_CFLAGS += $(call cc-option,-mtune=power4)
endif
-else
-LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
endif
+LDFLAGS_MODULE += arch/powerpc/lib/crtsavres.o
+
ifeq ($(CONFIG_TUNE_CELL),y)
KBUILD_CFLAGS += $(call cc-option,-mtune=cell)
endif
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 5d8be041622..0175a676b34 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -24,11 +24,7 @@
* 2 of the License, or (at your option) any later version.
*/
-#ifdef __KERNEL__
#include <linux/types.h>
-#else
-#include <stdint.h>
-#endif
#ifndef __ASSEMBLY__
@@ -364,13 +360,13 @@ static inline unsigned long regs_get_kernel_stack_nth(struct pt_regs *regs,
#ifndef __ASSEMBLY__
struct ppc_debug_info {
- uint32_t version; /* Only version 1 exists to date */
- uint32_t num_instruction_bps;
- uint32_t num_data_bps;
- uint32_t num_condition_regs;
- uint32_t data_bp_alignment;
- uint32_t sizeof_condition; /* size of the DVC register */
- uint64_t features;
+ __u32 version; /* Only version 1 exists to date */
+ __u32 num_instruction_bps;
+ __u32 num_data_bps;
+ __u32 num_condition_regs;
+ __u32 data_bp_alignment;
+ __u32 sizeof_condition; /* size of the DVC register */
+ __u64 features;
};
#endif /* __ASSEMBLY__ */
@@ -386,13 +382,13 @@ struct ppc_debug_info {
#ifndef __ASSEMBLY__
struct ppc_hw_breakpoint {
- uint32_t version; /* currently, version must be 1 */
- uint32_t trigger_type; /* only some combinations allowed */
- uint32_t addr_mode; /* address match mode */
- uint32_t condition_mode; /* break/watchpoint condition flags */
- uint64_t addr; /* break/watchpoint address */
- uint64_t addr2; /* range end or mask */
- uint64_t condition_value; /* contents of the DVC register */
+ __u32 version; /* currently, version must be 1 */
+ __u32 trigger_type; /* only some combinations allowed */
+ __u32 addr_mode; /* address match mode */
+ __u32 condition_mode; /* break/watchpoint condition flags */
+ __u64 addr; /* break/watchpoint address */
+ __u64 addr2; /* range end or mask */
+ __u64 condition_value; /* contents of the DVC register */
};
#endif /* __ASSEMBLY__ */
diff --git a/arch/powerpc/kernel/crash.c b/arch/powerpc/kernel/crash.c
index b46f2e09bd8..29df48f2b61 100644
--- a/arch/powerpc/kernel/crash.c
+++ b/arch/powerpc/kernel/crash.c
@@ -447,7 +447,7 @@ void default_machine_crash_shutdown(struct pt_regs *regs)
crash_kexec_prepare_cpus(crashing_cpu);
cpu_set(crashing_cpu, cpus_in_crash);
crash_kexec_stop_spus();
-#ifdef CONFIG_PPC_STD_MMU_64
+#if defined(CONFIG_PPC_STD_MMU_64) && defined(CONFIG_SMP)
crash_kexec_wait_realmode(crashing_cpu);
#endif
if (ppc_md.kexec_cpu_down)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 3333bbdd23e..77be3d058a6 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -295,7 +295,10 @@ void fixup_irqs(const struct cpumask *map)
for_each_irq(irq) {
desc = irq_to_desc(irq);
- if (desc && desc->status & IRQ_PER_CPU)
+ if (!desc)
+ continue;
+
+ if (desc->status & IRQ_PER_CPU)
continue;
cpumask_and(mask, desc->affinity, map);
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index 43b83c35cf5..5c14ffe5125 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -791,8 +791,11 @@ static void power_pmu_disable(struct perf_event *event)
cpuhw = &__get_cpu_var(cpu_hw_events);
for (i = 0; i < cpuhw->n_events; ++i) {
if (event == cpuhw->event[i]) {
- while (++i < cpuhw->n_events)
+ while (++i < cpuhw->n_events) {
cpuhw->event[i-1] = cpuhw->event[i];
+ cpuhw->events[i-1] = cpuhw->events[i];
+ cpuhw->flags[i-1] = cpuhw->flags[i];
+ }
--cpuhw->n_events;
ppmu->disable_pmc(event->hw.idx - 1, cpuhw->mmcr);
if (event->hw.idx) {
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 97d4bd9442d..3b6f8ae9b8c 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -872,7 +872,7 @@ static void __init prom_send_capabilities(void)
"ibm_architecture_vec structure inconsistent: 0x%x !\n",
*cores);
} else {
- *cores = NR_CPUS / prom_count_smt_threads();
+ *cores = DIV_ROUND_UP(NR_CPUS, prom_count_smt_threads());
prom_printf("Max number of cores passed to firmware: 0x%x\n",
(unsigned long)*cores);
}
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index 1ac136b128f..9f82f493789 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -52,12 +52,18 @@ do
if [ "${UNDEF:0:9}" = "_restgpr_" ]; then
OK=1
fi
+ if [ "${UNDEF:0:10}" = "_restgpr0_" ]; then
+ OK=1
+ fi
if [ "${UNDEF:0:11}" = "_rest32gpr_" ]; then
OK=1
fi
if [ "${UNDEF:0:9}" = "_savegpr_" ]; then
OK=1
fi
+ if [ "${UNDEF:0:10}" = "_savegpr0_" ]; then
+ OK=1
+ fi
if [ "${UNDEF:0:11}" = "_save32gpr_" ]; then
OK=1
fi
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 3040dac18a3..111da1c03a1 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -12,8 +12,8 @@ CFLAGS_REMOVE_code-patching.o = -pg
CFLAGS_REMOVE_feature-fixups.o = -pg
obj-y := string.o alloc.o \
- checksum_$(CONFIG_WORD_SIZE).o
-obj-$(CONFIG_PPC32) += div64.o copy_32.o crtsavres.o
+ checksum_$(CONFIG_WORD_SIZE).o crtsavres.o
+obj-$(CONFIG_PPC32) += div64.o copy_32.o
obj-$(CONFIG_HAS_IOMEM) += devres.o
obj-$(CONFIG_PPC64) += copypage_64.o copyuser_64.o \
diff --git a/arch/powerpc/lib/crtsavres.S b/arch/powerpc/lib/crtsavres.S
index 70a9cd8a300..1c893f05d22 100644
--- a/arch/powerpc/lib/crtsavres.S
+++ b/arch/powerpc/lib/crtsavres.S
@@ -6,6 +6,7 @@
* Written By Michael Meissner
*
* Based on gcc/config/rs6000/crtsavres.asm from gcc
+ * 64 bit additions from reading the PPC elf64abi document.
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
@@ -44,6 +45,8 @@
#ifdef CONFIG_CC_OPTIMIZE_FOR_SIZE
+#ifndef CONFIG_PPC64
+
/* Routines for saving integer registers, called by the compiler. */
/* Called with r11 pointing to the stack header word of the caller of the */
/* function, just beyond the end of the integer save area. */
@@ -226,4 +229,130 @@ _GLOBAL(_rest32gpr_31_x)
mtlr 0
mr 1,11
blr
+
+#else /* CONFIG_PPC64 */
+
+.globl _savegpr0_14
+_savegpr0_14:
+ std r14,-144(r1)
+.globl _savegpr0_15
+_savegpr0_15:
+ std r15,-136(r1)
+.globl _savegpr0_16
+_savegpr0_16:
+ std r16,-128(r1)
+.globl _savegpr0_17
+_savegpr0_17:
+ std r17,-120(r1)
+.globl _savegpr0_18
+_savegpr0_18:
+ std r18,-112(r1)
+.globl _savegpr0_19
+_savegpr0_19:
+ std r19,-104(r1)
+.globl _savegpr0_20
+_savegpr0_20:
+ std r20,-96(r1)
+.globl _savegpr0_21
+_savegpr0_21:
+ std r21,-88(r1)
+.globl _savegpr0_22
+_savegpr0_22:
+ std r22,-80(r1)
+.globl _savegpr0_23
+_savegpr0_23:
+ std r23,-72(r1)
+.globl _savegpr0_24
+_savegpr0_24:
+ std r24,-64(r1)
+.globl _savegpr0_25
+_savegpr0_25:
+ std r25,-56(r1)
+.globl _savegpr0_26
+_savegpr0_26:
+ std r26,-48(r1)
+.globl _savegpr0_27
+_savegpr0_27:
+ std r27,-40(r1)
+.globl _savegpr0_28
+_savegpr0_28:
+ std r28,-32(r1)
+.globl _savegpr0_29
+_savegpr0_29:
+ std r29,-24(r1)
+.globl _savegpr0_30
+_savegpr0_30:
+ std r30,-16(r1)
+.globl _savegpr0_31
+_savegpr0_31:
+ std r31,-8(r1)
+ std r0,16(r1)
+ blr
+
+.globl _restgpr0_14
+_restgpr0_14:
+ ld r14,-144(r1)
+.globl _restgpr0_15
+_restgpr0_15:
+ ld r15,-136(r1)
+.globl _restgpr0_16
+_restgpr0_16:
+ ld r16,-128(r1)
+.globl _restgpr0_17
+_restgpr0_17:
+ ld r17,-120(r1)
+.globl _restgpr0_18
+_restgpr0_18:
+ ld r18,-112(r1)
+.globl _restgpr0_19
+_restgpr0_19:
+ ld r19,-104(r1)
+.globl _restgpr0_20
+_restgpr0_20:
+ ld r20,-96(r1)
+.globl _restgpr0_21
+_restgpr0_21:
+ ld r21,-88(r1)
+.globl _restgpr0_22
+_restgpr0_22:
+ ld r22,-80(r1)
+.globl _restgpr0_23
+_restgpr0_23:
+ ld r23,-72(r1)
+.globl _restgpr0_24
+_restgpr0_24:
+ ld r24,-64(r1)
+.globl _restgpr0_25
+_restgpr0_25:
+ ld r25,-56(r1)
+.globl _restgpr0_26
+_restgpr0_26:
+ ld r26,-48(r1)
+.globl _restgpr0_27
+_restgpr0_27:
+ ld r27,-40(r1)
+.globl _restgpr0_28
+_restgpr0_28:
+ ld r28,-32(r1)
+.globl _restgpr0_29
+_restgpr0_29:
+ ld r0,16(r1)
+ ld r29,-24(r1)
+ mtlr r0
+ ld r30,-16(r1)
+ ld r31,-8(r1)
+ blr
+
+.globl _restgpr0_30
+_restgpr0_30:
+ ld r30,-16(r1)
+.globl _restgpr0_31
+_restgpr0_31:
+ ld r0,16(r1)
+ ld r31,-8(r1)
+ mtlr r0
+ blr
+
+#endif /* CONFIG_PPC64 */
+
#endif
diff --git a/arch/powerpc/lib/feature-fixups.c b/arch/powerpc/lib/feature-fixups.c
index e640175b65a..0d08d017139 100644
--- a/arch/powerpc/lib/feature-fixups.c
+++ b/arch/powerpc/lib/feature-fixups.c
@@ -12,6 +12,7 @@
* 2 of the License, or (at your option) any later version.
*/
+#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/init.h>
@@ -288,8 +289,8 @@ static void test_alternative_case_with_external_branch(void)
static void test_cpu_macros(void)
{
- extern void ftr_fixup_test_FTR_macros;
- extern void ftr_fixup_test_FTR_macros_expected;
+ extern u8 ftr_fixup_test_FTR_macros;
+ extern u8 ftr_fixup_test_FTR_macros_expected;
unsigned long size = &ftr_fixup_test_FTR_macros_expected -
&ftr_fixup_test_FTR_macros;
@@ -301,8 +302,8 @@ static void test_cpu_macros(void)
static void test_fw_macros(void)
{
#ifdef CONFIG_PPC64
- extern void ftr_fixup_test_FW_FTR_macros;
- extern void ftr_fixup_test_FW_FTR_macros_expected;
+ extern u8 ftr_fixup_test_FW_FTR_macros;
+ extern u8 ftr_fixup_test_FW_FTR_macros_expected;
unsigned long size = &ftr_fixup_test_FW_FTR_macros_expected -
&ftr_fixup_test_FW_FTR_macros;
@@ -314,10 +315,10 @@ static void test_fw_macros(void)
static void test_lwsync_macros(void)
{
- extern void lwsync_fixup_test;
- extern void end_lwsync_fixup_test;
- extern void lwsync_fixup_test_expected_LWSYNC;
- extern void lwsync_fixup_test_expected_SYNC;
+ extern u8 lwsync_fixup_test;
+ extern u8 end_lwsync_fixup_test;
+ extern u8 lwsync_fixup_test_expected_LWSYNC;
+ extern u8 lwsync_fixup_test_expected_SYNC;
unsigned long size = &end_lwsync_fixup_test -
&lwsync_fixup_test;
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 3fc2e6494b8..ab3962b0d24 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -445,7 +445,11 @@ void __init iSeries_pcibios_fixup_resources(struct pci_dev *pdev)
}
allocate_device_bars(pdev);
- iseries_device_information(pdev, bus, *sub_bus);
+ if (likely(sub_bus))
+ iseries_device_information(pdev, bus, *sub_bus);
+ else
+ printk(KERN_ERR "PCI: Device node %s has missing or invalid "
+ "linux,subbus property\n", node->full_name);
}
/*
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index f8779006986..f6127b9f5ac 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -503,6 +503,11 @@ static int ignore_undef_symbol(struct elf_info *info, const char *symname)
strncmp(symname, "_rest32gpr_", sizeof("_rest32gpr_") - 1) == 0 ||
strncmp(symname, "_save32gpr_", sizeof("_save32gpr_") - 1) == 0)
return 1;
+ if (info->hdr->e_machine == EM_PPC64)
+ /* Special register function linked on all modules during final link of .ko */
+ if (strncmp(symname, "_restgpr0_", sizeof("_restgpr0_") - 1) == 0 ||
+ strncmp(symname, "_savegpr0_", sizeof("_savegpr0_") - 1) == 0)
+ return 1;
/* Do not ignore this symbol */
return 0;
}