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-rw-r--r--arch/powerpc/configs/ppc64_defconfig5
-rw-r--r--arch/powerpc/include/asm/ppc-pci.h5
-rw-r--r--arch/powerpc/include/asm/ptrace.h20
-rw-r--r--arch/powerpc/kernel/entry_32.S2
-rw-r--r--arch/powerpc/kernel/entry_64.S6
-rw-r--r--arch/powerpc/kernel/exceptions-64s.S2
-rw-r--r--arch/powerpc/kernel/irq.c6
-rw-r--r--arch/powerpc/kernel/perf_event.c8
-rw-r--r--arch/powerpc/kernel/process.c6
-rw-r--r--arch/powerpc/kernel/rtas.c5
-rw-r--r--arch/powerpc/kernel/signal.c12
-rw-r--r--arch/powerpc/kernel/signal.h2
-rw-r--r--arch/powerpc/platforms/powernv/pci.c22
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c4
-rw-r--r--arch/powerpc/platforms/pseries/suspend.c6
-rw-r--r--arch/powerpc/platforms/wsp/ics.c2
-rw-r--r--arch/powerpc/platforms/wsp/smp.c2
-rw-r--r--arch/powerpc/platforms/wsp/wsp_pci.c8
-rw-r--r--arch/powerpc/sysdev/fsl_pci.c48
19 files changed, 107 insertions, 64 deletions
diff --git a/arch/powerpc/configs/ppc64_defconfig b/arch/powerpc/configs/ppc64_defconfig
index 2156e077859b..1acf65026773 100644
--- a/arch/powerpc/configs/ppc64_defconfig
+++ b/arch/powerpc/configs/ppc64_defconfig
@@ -24,10 +24,6 @@ CONFIG_PPC_SPLPAR=y
CONFIG_SCANLOG=m
CONFIG_PPC_SMLPAR=y
CONFIG_DTL=y
-CONFIG_PPC_ISERIES=y
-CONFIG_VIODASD=y
-CONFIG_VIOCD=m
-CONFIG_VIOTAPE=m
CONFIG_PPC_MAPLE=y
CONFIG_PPC_PASEMI=y
CONFIG_PPC_PASEMI_IOMMU=y
@@ -259,7 +255,6 @@ CONFIG_PASEMI_MAC=y
CONFIG_MLX4_EN=m
CONFIG_QLGE=m
CONFIG_BE2NET=m
-CONFIG_ISERIES_VETH=m
CONFIG_PPP=m
CONFIG_PPP_ASYNC=m
CONFIG_PPP_SYNC_TTY=m
diff --git a/arch/powerpc/include/asm/ppc-pci.h b/arch/powerpc/include/asm/ppc-pci.h
index 43268f15004e..6d422979ebaf 100644
--- a/arch/powerpc/include/asm/ppc-pci.h
+++ b/arch/powerpc/include/asm/ppc-pci.h
@@ -142,6 +142,11 @@ static inline const char *eeh_pci_name(struct pci_dev *pdev)
return pdev ? pci_name(pdev) : "<null>";
}
+static inline const char *eeh_driver_name(struct pci_dev *pdev)
+{
+ return (pdev && pdev->driver) ? pdev->driver->name : "<null>";
+}
+
#endif /* CONFIG_EEH */
#else /* CONFIG_PCI */
diff --git a/arch/powerpc/include/asm/ptrace.h b/arch/powerpc/include/asm/ptrace.h
index 78a205162fd7..84cc7840cd18 100644
--- a/arch/powerpc/include/asm/ptrace.h
+++ b/arch/powerpc/include/asm/ptrace.h
@@ -83,8 +83,18 @@ struct pt_regs {
#ifndef __ASSEMBLY__
-#define instruction_pointer(regs) ((regs)->nip)
-#define user_stack_pointer(regs) ((regs)->gpr[1])
+#define GET_IP(regs) ((regs)->nip)
+#define GET_USP(regs) ((regs)->gpr[1])
+#define GET_FP(regs) (0)
+#define SET_FP(regs, val)
+
+#ifdef CONFIG_SMP
+extern unsigned long profile_pc(struct pt_regs *regs);
+#define profile_pc profile_pc
+#endif
+
+#include <asm-generic/ptrace.h>
+
#define kernel_stack_pointer(regs) ((regs)->gpr[1])
static inline int is_syscall_success(struct pt_regs *regs)
{
@@ -99,12 +109,6 @@ static inline long regs_return_value(struct pt_regs *regs)
return -regs->gpr[3];
}
-#ifdef CONFIG_SMP
-extern unsigned long profile_pc(struct pt_regs *regs);
-#else
-#define profile_pc(regs) instruction_pointer(regs)
-#endif
-
#ifdef __powerpc64__
#define user_mode(regs) ((((regs)->msr) >> MSR_PR_LG) & 0x1)
#else
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 4f80cf1ce77b..3e57a00b8cba 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -1213,7 +1213,7 @@ do_user_signal: /* r10 contains MSR_KERNEL here */
stw r3,_TRAP(r1)
2: addi r3,r1,STACK_FRAME_OVERHEAD
mr r4,r9
- bl do_signal
+ bl do_notify_resume
REST_NVGPRS(r1)
b recheck
diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index d834425186ae..866462cbe2d8 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -751,12 +751,16 @@ user_work:
andi. r0,r4,_TIF_NEED_RESCHED
beq 1f
+ li r5,1
+ TRACE_AND_RESTORE_IRQ(r5);
bl .schedule
b .ret_from_except_lite
1: bl .save_nvgprs
+ li r5,1
+ TRACE_AND_RESTORE_IRQ(r5);
addi r3,r1,STACK_FRAME_OVERHEAD
- bl .do_signal
+ bl .do_notify_resume
b .ret_from_except
unrecov_restore:
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index d4be7bb3dbdf..15c5a4f6de01 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -774,8 +774,8 @@ alignment_common:
program_check_common:
EXCEPTION_PROLOG_COMMON(0x700, PACA_EXGEN)
bl .save_nvgprs
+ DISABLE_INTS
addi r3,r1,STACK_FRAME_OVERHEAD
- ENABLE_INTS
bl .program_check_exception
b .ret_from_except
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 701d4aceb4f4..01e2877e8e04 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -118,10 +118,14 @@ static inline notrace void set_soft_enabled(unsigned long enable)
static inline notrace void decrementer_check_overflow(void)
{
u64 now = get_tb_or_rtc();
- u64 *next_tb = &__get_cpu_var(decrementers_next_tb);
+ u64 *next_tb;
+
+ preempt_disable();
+ next_tb = &__get_cpu_var(decrementers_next_tb);
if (now >= *next_tb)
set_dec(1);
+ preempt_enable();
}
notrace void arch_local_irq_restore(unsigned long en)
diff --git a/arch/powerpc/kernel/perf_event.c b/arch/powerpc/kernel/perf_event.c
index 10a140f82cb8..64483fde95c6 100644
--- a/arch/powerpc/kernel/perf_event.c
+++ b/arch/powerpc/kernel/perf_event.c
@@ -865,6 +865,7 @@ static void power_pmu_start(struct perf_event *event, int ef_flags)
{
unsigned long flags;
s64 left;
+ unsigned long val;
if (!event->hw.idx || !event->hw.sample_period)
return;
@@ -880,7 +881,12 @@ static void power_pmu_start(struct perf_event *event, int ef_flags)
event->hw.state = 0;
left = local64_read(&event->hw.period_left);
- write_pmc(event->hw.idx, left);
+
+ val = 0;
+ if (left < 0x80000000L)
+ val = 0x80000000L - left;
+
+ write_pmc(event->hw.idx, val);
perf_event_update_userpage(event);
perf_pmu_enable(event->pmu);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index ebe5766781aa..d817ab018486 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -566,12 +566,12 @@ static void show_instructions(struct pt_regs *regs)
*/
if (!__kernel_text_address(pc) ||
__get_user(instr, (unsigned int __user *)pc)) {
- printk("XXXXXXXX ");
+ printk(KERN_CONT "XXXXXXXX ");
} else {
if (regs->nip == pc)
- printk("<%08x> ", instr);
+ printk(KERN_CONT "<%08x> ", instr);
else
- printk("%08x ", instr);
+ printk(KERN_CONT "%08x ", instr);
}
pc += sizeof(int);
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 517b1d8f455b..9f843cdfee9e 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -716,7 +716,6 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w
int cpu;
slb_set_size(SLB_MIN_SIZE);
- stop_topology_update();
printk(KERN_DEBUG "calling ibm,suspend-me on cpu %i\n", smp_processor_id());
while (rc == H_MULTI_THREADS_ACTIVE && !atomic_read(&data->done) &&
@@ -732,7 +731,6 @@ static int __rtas_suspend_last_cpu(struct rtas_suspend_me_data *data, int wake_w
rc = atomic_read(&data->error);
atomic_set(&data->error, rc);
- start_topology_update();
pSeries_coalesce_init();
if (wake_when_done) {
@@ -846,6 +844,7 @@ int rtas_ibm_suspend_me(struct rtas_args *args)
atomic_set(&data.error, 0);
data.token = rtas_token("ibm,suspend-me");
data.complete = &done;
+ stop_topology_update();
/* Call function on all CPUs. One of us will make the
* rtas call
@@ -858,6 +857,8 @@ int rtas_ibm_suspend_me(struct rtas_args *args)
if (atomic_read(&data.error) != 0)
printk(KERN_ERR "Error doing global join\n");
+ start_topology_update();
+
return atomic_read(&data.error);
}
#else /* CONFIG_PPC_PSERIES */
diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c
index 2300426e531a..ac6e437b1021 100644
--- a/arch/powerpc/kernel/signal.c
+++ b/arch/powerpc/kernel/signal.c
@@ -11,6 +11,7 @@
#include <linux/tracehook.h>
#include <linux/signal.h>
+#include <linux/key.h>
#include <asm/hw_breakpoint.h>
#include <asm/uaccess.h>
#include <asm/unistd.h>
@@ -113,8 +114,9 @@ static void check_syscall_restart(struct pt_regs *regs, struct k_sigaction *ka,
}
}
-static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
+static int do_signal(struct pt_regs *regs)
{
+ sigset_t *oldset;
siginfo_t info;
int signr;
struct k_sigaction ka;
@@ -123,7 +125,7 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
if (current_thread_info()->local_flags & _TLF_RESTORE_SIGMASK)
oldset = &current->saved_sigmask;
- else if (!oldset)
+ else
oldset = &current->blocked;
signr = get_signal_to_deliver(&info, &ka, regs, NULL);
@@ -191,14 +193,16 @@ static int do_signal_pending(sigset_t *oldset, struct pt_regs *regs)
return ret;
}
-void do_signal(struct pt_regs *regs, unsigned long thread_info_flags)
+void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags)
{
if (thread_info_flags & _TIF_SIGPENDING)
- do_signal_pending(NULL, regs);
+ do_signal(regs);
if (thread_info_flags & _TIF_NOTIFY_RESUME) {
clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
+ if (current->replacement_session_keyring)
+ key_replace_session_keyring();
}
}
diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h
index 6c0ddfc0603e..8dde973aaaf5 100644
--- a/arch/powerpc/kernel/signal.h
+++ b/arch/powerpc/kernel/signal.h
@@ -12,7 +12,7 @@
#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
-extern void do_signal(struct pt_regs *regs, unsigned long thread_info_flags);
+extern void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags);
extern void __user * get_sigframe(struct k_sigaction *ka, struct pt_regs *regs,
size_t frame_size, int is_32);
diff --git a/arch/powerpc/platforms/powernv/pci.c b/arch/powerpc/platforms/powernv/pci.c
index a70bc1e385eb..f92b9ef7340e 100644
--- a/arch/powerpc/platforms/powernv/pci.c
+++ b/arch/powerpc/platforms/powernv/pci.c
@@ -52,32 +52,38 @@ static int pnv_msi_check_device(struct pci_dev* pdev, int nvec, int type)
static unsigned int pnv_get_one_msi(struct pnv_phb *phb)
{
- unsigned int id;
+ unsigned long flags;
+ unsigned int id, rc;
+
+ spin_lock_irqsave(&phb->lock, flags);
- spin_lock(&phb->lock);
id = find_next_zero_bit(phb->msi_map, phb->msi_count, phb->msi_next);
if (id >= phb->msi_count && phb->msi_next)
id = find_next_zero_bit(phb->msi_map, phb->msi_count, 0);
if (id >= phb->msi_count) {
- spin_unlock(&phb->lock);
- return 0;
+ rc = 0;
+ goto out;
}
__set_bit(id, phb->msi_map);
- spin_unlock(&phb->lock);
- return id + phb->msi_base;
+ rc = id + phb->msi_base;
+out:
+ spin_unlock_irqrestore(&phb->lock, flags);
+ return rc;
}
static void pnv_put_msi(struct pnv_phb *phb, unsigned int hwirq)
{
+ unsigned long flags;
unsigned int id;
if (WARN_ON(hwirq < phb->msi_base ||
hwirq >= (phb->msi_base + phb->msi_count)))
return;
id = hwirq - phb->msi_base;
- spin_lock(&phb->lock);
+
+ spin_lock_irqsave(&phb->lock, flags);
__clear_bit(id, phb->msi_map);
- spin_unlock(&phb->lock);
+ spin_unlock_irqrestore(&phb->lock, flags);
}
static int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 565869022e3d..c0b40af4ce4f 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -551,9 +551,9 @@ int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *dev)
printk (KERN_ERR "EEH: %d reads ignored for recovering device at "
"location=%s driver=%s pci addr=%s\n",
pdn->eeh_check_count, location,
- dev->driver->name, eeh_pci_name(dev));
+ eeh_driver_name(dev), eeh_pci_name(dev));
printk (KERN_ERR "EEH: Might be infinite loop in %s driver\n",
- dev->driver->name);
+ eeh_driver_name(dev));
dump_stack();
}
goto dn_unlock;
diff --git a/arch/powerpc/platforms/pseries/suspend.c b/arch/powerpc/platforms/pseries/suspend.c
index b84a8b2238dd..47226e04126d 100644
--- a/arch/powerpc/platforms/pseries/suspend.c
+++ b/arch/powerpc/platforms/pseries/suspend.c
@@ -24,6 +24,7 @@
#include <asm/machdep.h>
#include <asm/mmu.h>
#include <asm/rtas.h>
+#include <asm/topology.h>
static u64 stream_id;
static struct device suspend_dev;
@@ -138,8 +139,11 @@ static ssize_t store_hibernate(struct device *dev,
ssleep(1);
} while (rc == -EAGAIN);
- if (!rc)
+ if (!rc) {
+ stop_topology_update();
rc = pm_suspend(PM_SUSPEND_MEM);
+ start_topology_update();
+ }
stream_id = 0;
diff --git a/arch/powerpc/platforms/wsp/ics.c b/arch/powerpc/platforms/wsp/ics.c
index 576874392543..97fe82ee8633 100644
--- a/arch/powerpc/platforms/wsp/ics.c
+++ b/arch/powerpc/platforms/wsp/ics.c
@@ -346,7 +346,7 @@ static int wsp_chip_set_affinity(struct irq_data *d,
* For the moment only implement delivery to all cpus or one cpu.
* Get current irq_server for the given irq
*/
- ret = cache_hwirq_map(ics, d->irq, cpumask);
+ ret = cache_hwirq_map(ics, hw_irq, cpumask);
if (ret == -1) {
char cpulist[128];
cpumask_scnprintf(cpulist, sizeof(cpulist), cpumask);
diff --git a/arch/powerpc/platforms/wsp/smp.c b/arch/powerpc/platforms/wsp/smp.c
index 71bd105f3863..0ba103ae83a5 100644
--- a/arch/powerpc/platforms/wsp/smp.c
+++ b/arch/powerpc/platforms/wsp/smp.c
@@ -71,7 +71,7 @@ int __devinit smp_a2_kick_cpu(int nr)
static int __init smp_a2_probe(void)
{
- return cpus_weight(cpu_possible_map);
+ return num_possible_cpus();
}
static struct smp_ops_t a2_smp_ops = {
diff --git a/arch/powerpc/platforms/wsp/wsp_pci.c b/arch/powerpc/platforms/wsp/wsp_pci.c
index e0262cd0e2d3..d24b3acf858e 100644
--- a/arch/powerpc/platforms/wsp/wsp_pci.c
+++ b/arch/powerpc/platforms/wsp/wsp_pci.c
@@ -468,15 +468,15 @@ static void __init wsp_pcie_configure_hw(struct pci_controller *hose)
#define DUMP_REG(x) \
pr_debug("%-30s : 0x%016llx\n", #x, in_be64(hose->cfg_data + x))
-#ifdef CONFIG_WSP_DD1_WORKAROUND_BAD_PCIE_CLASS
- /* WSP DD1 has a bogus class code by default in the PCI-E
- * root complex's built-in P2P bridge */
+ /*
+ * Some WSP variants has a bogus class code by default in the PCI-E
+ * root complex's built-in P2P bridge
+ */
val = in_be64(hose->cfg_data + PCIE_REG_SYS_CFG1);
pr_debug("PCI-E SYS_CFG1 : 0x%llx\n", val);
out_be64(hose->cfg_data + PCIE_REG_SYS_CFG1,
(val & ~PCIE_REG_SYS_CFG1_CLASS_CODE) | (PCI_CLASS_BRIDGE_PCI << 8));
pr_debug("PCI-E SYS_CFG1 : 0x%llx\n", in_be64(hose->cfg_data + PCIE_REG_SYS_CFG1));
-#endif /* CONFIG_WSP_DD1_WORKAROUND_BAD_PCIE_CLASS */
#ifdef CONFIG_WSP_DD1_WORKAROUND_DD1_TCE_BUGS
/* XXX Disable TCE caching, it doesn't work on DD1 */
diff --git a/arch/powerpc/sysdev/fsl_pci.c b/arch/powerpc/sysdev/fsl_pci.c
index 30eb17ecad49..6073288fed29 100644
--- a/arch/powerpc/sysdev/fsl_pci.c
+++ b/arch/powerpc/sysdev/fsl_pci.c
@@ -385,26 +385,36 @@ static void __init setup_pci_cmd(struct pci_controller *hose)
void fsl_pcibios_fixup_bus(struct pci_bus *bus)
{
struct pci_controller *hose = pci_bus_to_host(bus);
- int i;
-
- if ((bus->parent == hose->bus) &&
- ((fsl_pcie_bus_fixup &&
- early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP)) ||
- (hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK)))
- {
- for (i = 0; i < 4; ++i) {
+ int i, is_pcie = 0, no_link;
+
+ /* The root complex bridge comes up with bogus resources,
+ * we copy the PHB ones in.
+ *
+ * With the current generic PCI code, the PHB bus no longer
+ * has bus->resource[0..4] set, so things are a bit more
+ * tricky.
+ */
+
+ if (fsl_pcie_bus_fixup)
+ is_pcie = early_find_capability(hose, 0, 0, PCI_CAP_ID_EXP);
+ no_link = !!(hose->indirect_type & PPC_INDIRECT_TYPE_NO_PCIE_LINK);
+
+ if (bus->parent == hose->bus && (is_pcie || no_link)) {
+ for (i = 0; i < PCI_BRIDGE_RESOURCE_NUM; ++i) {
struct resource *res = bus->resource[i];
- struct resource *par = bus->parent->resource[i];
- if (res) {
- res->start = 0;
- res->end = 0;
- res->flags = 0;
- }
- if (res && par) {
- res->start = par->start;
- res->end = par->end;
- res->flags = par->flags;
- }
+ struct resource *par;
+
+ if (!res)
+ continue;
+ if (i == 0)
+ par = &hose->io_resource;
+ else if (i < 4)
+ par = &hose->mem_resources[i-1];
+ else par = NULL;
+
+ res->start = par ? par->start : 0;
+ res->end = par ? par->end : 0;
+ res->flags = par ? par->flags : 0;
}
}
}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.