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-rw-r--r--arch/powerpc/platforms/85xx/Kconfig1
-rw-r--r--arch/powerpc/platforms/cell/spu_base.c44
-rw-r--r--arch/powerpc/platforms/cell/spufs/run.c21
-rw-r--r--arch/powerpc/platforms/cell/spufs/sched.c19
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c11
-rw-r--r--arch/powerpc/platforms/pseries/nvram.c4
6 files changed, 65 insertions, 35 deletions
diff --git a/arch/powerpc/platforms/85xx/Kconfig b/arch/powerpc/platforms/85xx/Kconfig
index 7ff29d53dc2d..ecbe580c3f32 100644
--- a/arch/powerpc/platforms/85xx/Kconfig
+++ b/arch/powerpc/platforms/85xx/Kconfig
@@ -34,6 +34,7 @@ config MPC85xx_MDS
bool "Freescale MPC85xx MDS"
select DEFAULT_UIMAGE
select QUICC_ENGINE
+ select PHYLIB
help
This option enables support for the MPC85xx MDS board
diff --git a/arch/powerpc/platforms/cell/spu_base.c b/arch/powerpc/platforms/cell/spu_base.c
index 70c660121ec4..78f905bc6a42 100644
--- a/arch/powerpc/platforms/cell/spu_base.c
+++ b/arch/powerpc/platforms/cell/spu_base.c
@@ -219,15 +219,25 @@ static int __spu_trap_data_seg(struct spu *spu, unsigned long ea)
extern int hash_page(unsigned long ea, unsigned long access, unsigned long trap); //XXX
static int __spu_trap_data_map(struct spu *spu, unsigned long ea, u64 dsisr)
{
+ int ret;
+
pr_debug("%s, %lx, %lx\n", __func__, dsisr, ea);
- /* Handle kernel space hash faults immediately.
- User hash faults need to be deferred to process context. */
- if ((dsisr & MFC_DSISR_PTE_NOT_FOUND)
- && REGION_ID(ea) != USER_REGION_ID
- && hash_page(ea, _PAGE_PRESENT, 0x300) == 0) {
- spu_restart_dma(spu);
- return 0;
+ /*
+ * Handle kernel space hash faults immediately. User hash
+ * faults need to be deferred to process context.
+ */
+ if ((dsisr & MFC_DSISR_PTE_NOT_FOUND) &&
+ (REGION_ID(ea) != USER_REGION_ID)) {
+
+ spin_unlock(&spu->register_lock);
+ ret = hash_page(ea, _PAGE_PRESENT, 0x300);
+ spin_lock(&spu->register_lock);
+
+ if (!ret) {
+ spu_restart_dma(spu);
+ return 0;
+ }
}
spu->class_1_dar = ea;
@@ -324,17 +334,13 @@ spu_irq_class_0(int irq, void *data)
stat = spu_int_stat_get(spu, 0) & mask;
spu->class_0_pending |= stat;
- spu->class_0_dsisr = spu_mfc_dsisr_get(spu);
spu->class_0_dar = spu_mfc_dar_get(spu);
- spin_unlock(&spu->register_lock);
-
spu->stop_callback(spu, 0);
-
spu->class_0_pending = 0;
- spu->class_0_dsisr = 0;
spu->class_0_dar = 0;
spu_int_stat_clear(spu, 0, stat);
+ spin_unlock(&spu->register_lock);
return IRQ_HANDLED;
}
@@ -357,13 +363,12 @@ spu_irq_class_1(int irq, void *data)
spu_mfc_dsisr_set(spu, 0ul);
spu_int_stat_clear(spu, 1, stat);
- if (stat & CLASS1_SEGMENT_FAULT_INTR)
- __spu_trap_data_seg(spu, dar);
-
- spin_unlock(&spu->register_lock);
pr_debug("%s: %lx %lx %lx %lx\n", __func__, mask, stat,
dar, dsisr);
+ if (stat & CLASS1_SEGMENT_FAULT_INTR)
+ __spu_trap_data_seg(spu, dar);
+
if (stat & CLASS1_STORAGE_FAULT_INTR)
__spu_trap_data_map(spu, dar, dsisr);
@@ -376,6 +381,8 @@ spu_irq_class_1(int irq, void *data)
spu->class_1_dsisr = 0;
spu->class_1_dar = 0;
+ spin_unlock(&spu->register_lock);
+
return stat ? IRQ_HANDLED : IRQ_NONE;
}
@@ -394,14 +401,12 @@ spu_irq_class_2(int irq, void *data)
mask = spu_int_mask_get(spu, 2);
/* ignore interrupts we're not waiting for */
stat &= mask;
-
/* mailbox interrupts are level triggered. mask them now before
* acknowledging */
if (stat & mailbox_intrs)
spu_int_mask_and(spu, 2, ~(stat & mailbox_intrs));
/* acknowledge all interrupts before the callbacks */
spu_int_stat_clear(spu, 2, stat);
- spin_unlock(&spu->register_lock);
pr_debug("class 2 interrupt %d, %lx, %lx\n", irq, stat, mask);
@@ -421,6 +426,9 @@ spu_irq_class_2(int irq, void *data)
spu->wbox_callback(spu);
spu->stats.class2_intr++;
+
+ spin_unlock(&spu->register_lock);
+
return stat ? IRQ_HANDLED : IRQ_NONE;
}
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index b7493b865812..f7edba6cb795 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -27,7 +27,6 @@ void spufs_stop_callback(struct spu *spu, int irq)
switch(irq) {
case 0 :
ctx->csa.class_0_pending = spu->class_0_pending;
- ctx->csa.class_0_dsisr = spu->class_0_dsisr;
ctx->csa.class_0_dar = spu->class_0_dar;
break;
case 1 :
@@ -51,18 +50,22 @@ int spu_stopped(struct spu_context *ctx, u32 *stat)
u64 dsisr;
u32 stopped;
- *stat = ctx->ops->status_read(ctx);
-
- if (test_bit(SPU_SCHED_NOTIFY_ACTIVE, &ctx->sched_flags))
- return 1;
-
stopped = SPU_STATUS_INVALID_INSTR | SPU_STATUS_SINGLE_STEP |
SPU_STATUS_STOPPED_BY_HALT | SPU_STATUS_STOPPED_BY_STOP;
- if (!(*stat & SPU_STATUS_RUNNING) && (*stat & stopped))
+
+top:
+ *stat = ctx->ops->status_read(ctx);
+ if (*stat & stopped) {
+ /*
+ * If the spu hasn't finished stopping, we need to
+ * re-read the register to get the stopped value.
+ */
+ if (*stat & SPU_STATUS_RUNNING)
+ goto top;
return 1;
+ }
- dsisr = ctx->csa.class_0_dsisr;
- if (dsisr & (MFC_DSISR_PTE_NOT_FOUND | MFC_DSISR_ACCESS_DENIED))
+ if (test_bit(SPU_SCHED_NOTIFY_ACTIVE, &ctx->sched_flags))
return 1;
dsisr = ctx->csa.class_1_dsisr;
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 745dd51ec37f..e929e70a84e3 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -230,19 +230,23 @@ static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
ctx->stats.slb_flt_base = spu->stats.slb_flt;
ctx->stats.class2_intr_base = spu->stats.class2_intr;
+ spu_associate_mm(spu, ctx->owner);
+
+ spin_lock_irq(&spu->register_lock);
spu->ctx = ctx;
spu->flags = 0;
ctx->spu = spu;
ctx->ops = &spu_hw_ops;
spu->pid = current->pid;
spu->tgid = current->tgid;
- spu_associate_mm(spu, ctx->owner);
spu->ibox_callback = spufs_ibox_callback;
spu->wbox_callback = spufs_wbox_callback;
spu->stop_callback = spufs_stop_callback;
spu->mfc_callback = spufs_mfc_callback;
- mb();
+ spin_unlock_irq(&spu->register_lock);
+
spu_unmap_mappings(ctx);
+
spu_switch_log_notify(spu, ctx, SWITCH_LOG_START, 0);
spu_restore(&ctx->csa, spu);
spu->timestamp = jiffies;
@@ -403,6 +407,8 @@ static int has_affinity(struct spu_context *ctx)
*/
static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
{
+ u32 status;
+
spu_context_trace(spu_unbind_context__enter, ctx, spu);
spuctx_switch_state(ctx, SPU_UTIL_SYSTEM);
@@ -423,18 +429,22 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
spu_unmap_mappings(ctx);
spu_save(&ctx->csa, spu);
spu_switch_log_notify(spu, ctx, SWITCH_LOG_STOP, 0);
+
+ spin_lock_irq(&spu->register_lock);
spu->timestamp = jiffies;
ctx->state = SPU_STATE_SAVED;
spu->ibox_callback = NULL;
spu->wbox_callback = NULL;
spu->stop_callback = NULL;
spu->mfc_callback = NULL;
- spu_associate_mm(spu, NULL);
spu->pid = 0;
spu->tgid = 0;
ctx->ops = &spu_backing_ops;
spu->flags = 0;
spu->ctx = NULL;
+ spin_unlock_irq(&spu->register_lock);
+
+ spu_associate_mm(spu, NULL);
ctx->stats.slb_flt +=
(spu->stats.slb_flt - ctx->stats.slb_flt_base);
@@ -444,6 +454,9 @@ static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
/* This maps the underlying spu state to idle */
spuctx_switch_state(ctx, SPU_UTIL_IDLE_LOADED);
ctx->spu = NULL;
+
+ if (spu_stopped(ctx, &status))
+ wake_up_all(&ctx->stop_wq);
}
/**
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 68ea5eee39a8..8c1ca477c52c 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -42,17 +42,20 @@ static inline const char * pcid_name (struct pci_dev *pdev)
}
#ifdef DEBUG
-static void print_device_node_tree (struct pci_dn *pdn, int dent)
+static void print_device_node_tree(struct pci_dn *pdn, int dent)
{
int i;
- if (!pdn) return;
- for (i=0;i<dent; i++)
+ struct device_node *pc;
+
+ if (!pdn)
+ return;
+ for (i = 0; i < dent; i++)
printk(" ");
printk("dn=%s mode=%x \tcfg_addr=%x pe_addr=%x \tfull=%s\n",
pdn->node->name, pdn->eeh_mode, pdn->eeh_config_addr,
pdn->eeh_pe_config_addr, pdn->node->full_name);
dent += 3;
- struct device_node *pc = pdn->node->child;
+ pc = pdn->node->child;
while (pc) {
print_device_node_tree(PCI_DN(pc), dent);
pc = pc->sibling;
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index f68903e15bd5..42f7e384e6c4 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -131,8 +131,10 @@ int __init pSeries_nvram_init(void)
return -ENODEV;
nbytes_p = of_get_property(nvram, "#bytes", &proplen);
- if (nbytes_p == NULL || proplen != sizeof(unsigned int))
+ if (nbytes_p == NULL || proplen != sizeof(unsigned int)) {
+ of_node_put(nvram);
return -EIO;
+ }
nvram_size = *nbytes_p;