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-rw-r--r--arch/powerpc/platforms/pseries/Makefile2
-rw-r--r--arch/powerpc/platforms/pseries/event_sources.c8
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c2
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c59
-rw-r--r--arch/powerpc/platforms/pseries/nvram.c10
-rw-r--r--arch/powerpc/platforms/pseries/rng.c44
6 files changed, 85 insertions, 40 deletions
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 6c61ec5ee914..fbccac9cd2dc 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -3,7 +3,7 @@ ccflags-$(CONFIG_PPC_PSERIES_DEBUG) += -DDEBUG
obj-y := lpar.o hvCall.o nvram.o reconfig.o \
setup.o iommu.o event_sources.o ras.o \
- firmware.o power.o dlpar.o mobility.o
+ firmware.o power.o dlpar.o mobility.o rng.o
obj-$(CONFIG_SMP) += smp.o
obj-$(CONFIG_SCANLOG) += scanlog.o
obj-$(CONFIG_EEH) += eeh_pseries.o
diff --git a/arch/powerpc/platforms/pseries/event_sources.c b/arch/powerpc/platforms/pseries/event_sources.c
index 2605c310166a..18380e8f6dfe 100644
--- a/arch/powerpc/platforms/pseries/event_sources.c
+++ b/arch/powerpc/platforms/pseries/event_sources.c
@@ -25,7 +25,7 @@ void request_event_sources_irqs(struct device_node *np,
const char *name)
{
int i, index, count = 0;
- struct of_irq oirq;
+ struct of_phandle_args oirq;
const u32 *opicprop;
unsigned int opicplen;
unsigned int virqs[16];
@@ -55,13 +55,11 @@ void request_event_sources_irqs(struct device_node *np,
/* Else use normal interrupt tree parsing */
else {
/* First try to do a proper OF tree parsing */
- for (index = 0; of_irq_map_one(np, index, &oirq) == 0;
+ for (index = 0; of_irq_parse_one(np, index, &oirq) == 0;
index++) {
if (count > 15)
break;
- virqs[count] = irq_create_of_mapping(oirq.controller,
- oirq.specifier,
- oirq.size);
+ virqs[count] = irq_create_of_mapping(&oirq);
if (virqs[count] == NO_IRQ) {
pr_err("event-sources: Unable to allocate "
"interrupt number for %s\n",
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 9a432de363b8..9590dbb756f2 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -10,12 +10,14 @@
*/
#include <linux/of.h>
+#include <linux/of_address.h>
#include <linux/memblock.h>
#include <linux/vmalloc.h>
#include <linux/memory.h>
#include <asm/firmware.h>
#include <asm/machdep.h>
+#include <asm/prom.h>
#include <asm/sparsemem.h>
static unsigned long get_memblock_size(void)
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 0307901e4132..f253361552ae 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -52,7 +52,7 @@
static void tce_invalidate_pSeries_sw(struct iommu_table *tbl,
- u64 *startp, u64 *endp)
+ __be64 *startp, __be64 *endp)
{
u64 __iomem *invalidate = (u64 __iomem *)tbl->it_index;
unsigned long start, end, inc;
@@ -86,7 +86,7 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
struct dma_attrs *attrs)
{
u64 proto_tce;
- u64 *tcep, *tces;
+ __be64 *tcep, *tces;
u64 rpn;
proto_tce = TCE_PCI_READ; // Read allowed
@@ -94,12 +94,12 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
if (direction != DMA_TO_DEVICE)
proto_tce |= TCE_PCI_WRITE;
- tces = tcep = ((u64 *)tbl->it_base) + index;
+ tces = tcep = ((__be64 *)tbl->it_base) + index;
while (npages--) {
/* can't move this out since we might cross MEMBLOCK boundary */
rpn = __pa(uaddr) >> TCE_SHIFT;
- *tcep = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+ *tcep = cpu_to_be64(proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT);
uaddr += TCE_PAGE_SIZE;
tcep++;
@@ -113,9 +113,9 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index,
static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
{
- u64 *tcep, *tces;
+ __be64 *tcep, *tces;
- tces = tcep = ((u64 *)tbl->it_base) + index;
+ tces = tcep = ((__be64 *)tbl->it_base) + index;
while (npages--)
*(tcep++) = 0;
@@ -126,11 +126,11 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages)
static unsigned long tce_get_pseries(struct iommu_table *tbl, long index)
{
- u64 *tcep;
+ __be64 *tcep;
- tcep = ((u64 *)tbl->it_base) + index;
+ tcep = ((__be64 *)tbl->it_base) + index;
- return *tcep;
+ return be64_to_cpu(*tcep);
}
static void tce_free_pSeriesLP(struct iommu_table*, long, long);
@@ -177,7 +177,7 @@ static int tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
return ret;
}
-static DEFINE_PER_CPU(u64 *, tce_page);
+static DEFINE_PER_CPU(__be64 *, tce_page);
static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
long npages, unsigned long uaddr,
@@ -186,7 +186,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
{
u64 rc = 0;
u64 proto_tce;
- u64 *tcep;
+ __be64 *tcep;
u64 rpn;
long l, limit;
long tcenum_start = tcenum, npages_start = npages;
@@ -206,7 +206,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
* from iommu_alloc{,_sg}()
*/
if (!tcep) {
- tcep = (u64 *)__get_free_page(GFP_ATOMIC);
+ tcep = (__be64 *)__get_free_page(GFP_ATOMIC);
/* If allocation fails, fall back to the loop implementation */
if (!tcep) {
local_irq_restore(flags);
@@ -230,7 +230,7 @@ static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
limit = min_t(long, npages, 4096/TCE_ENTRY_SIZE);
for (l = 0; l < limit; l++) {
- tcep[l] = proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT;
+ tcep[l] = cpu_to_be64(proto_tce | (rpn & TCE_RPN_MASK) << TCE_RPN_SHIFT);
rpn++;
}
@@ -329,16 +329,16 @@ struct direct_window {
/* Dynamic DMA Window support */
struct ddw_query_response {
- u32 windows_available;
- u32 largest_available_block;
- u32 page_size;
- u32 migration_capable;
+ __be32 windows_available;
+ __be32 largest_available_block;
+ __be32 page_size;
+ __be32 migration_capable;
};
struct ddw_create_response {
- u32 liobn;
- u32 addr_hi;
- u32 addr_lo;
+ __be32 liobn;
+ __be32 addr_hi;
+ __be32 addr_lo;
};
static LIST_HEAD(direct_window_list);
@@ -392,7 +392,8 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
unsigned long num_pfn, const void *arg)
{
const struct dynamic_dma_window_prop *maprange = arg;
- u64 *tcep, tce_size, num_tce, dma_offset, next, proto_tce, liobn;
+ u64 tce_size, num_tce, dma_offset, next, proto_tce, liobn;
+ __be64 *tcep;
u32 tce_shift;
u64 rc = 0;
long l, limit;
@@ -401,7 +402,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
tcep = __get_cpu_var(tce_page);
if (!tcep) {
- tcep = (u64 *)__get_free_page(GFP_ATOMIC);
+ tcep = (__be64 *)__get_free_page(GFP_ATOMIC);
if (!tcep) {
local_irq_enable();
return -ENOMEM;
@@ -435,7 +436,7 @@ static int tce_setrange_multi_pSeriesLP(unsigned long start_pfn,
dma_offset = next + be64_to_cpu(maprange->dma_base);
for (l = 0; l < limit; l++) {
- tcep[l] = proto_tce | next;
+ tcep[l] = cpu_to_be64(proto_tce | next);
next += tce_size;
}
@@ -780,7 +781,7 @@ static u64 find_existing_ddw(struct device_node *pdn)
list_for_each_entry(window, &direct_window_list, list) {
if (window->device == pdn) {
direct64 = window->prop;
- dma_addr = direct64->dma_base;
+ dma_addr = be64_to_cpu(direct64->dma_base);
break;
}
}
@@ -1045,11 +1046,11 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
dev_dbg(&dev->dev, "no free dynamic windows");
goto out_restore_window;
}
- if (query.page_size & 4) {
+ if (be32_to_cpu(query.page_size) & 4) {
page_shift = 24; /* 16MB */
- } else if (query.page_size & 2) {
+ } else if (be32_to_cpu(query.page_size) & 2) {
page_shift = 16; /* 64kB */
- } else if (query.page_size & 1) {
+ } else if (be32_to_cpu(query.page_size) & 1) {
page_shift = 12; /* 4kB */
} else {
dev_dbg(&dev->dev, "no supported direct page size in mask %x",
@@ -1059,7 +1060,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
/* verify the window * number of ptes will map the partition */
/* check largest block * page size > max memory hotplug addr */
max_addr = memory_hotplug_max();
- if (query.largest_available_block < (max_addr >> page_shift)) {
+ if (be32_to_cpu(query.largest_available_block) < (max_addr >> page_shift)) {
dev_dbg(&dev->dev, "can't map partiton max 0x%llx with %u "
"%llu-sized pages\n", max_addr, query.largest_available_block,
1ULL << page_shift);
@@ -1085,7 +1086,7 @@ static u64 enable_ddw(struct pci_dev *dev, struct device_node *pdn)
if (ret != 0)
goto out_free_prop;
- ddwprop->liobn = cpu_to_be32(create.liobn);
+ ddwprop->liobn = create.liobn;
ddwprop->dma_base = cpu_to_be64(of_read_number(&create.addr_hi, 2));
ddwprop->tce_shift = cpu_to_be32(page_shift);
ddwprop->window_shift = cpu_to_be32(len);
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index d276cd3edd8f..057fc894be51 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -429,9 +429,6 @@ static int __init pseries_nvram_init_os_partition(struct nvram_os_partition
loff_t p;
int size;
- /* Scan nvram for partitions */
- nvram_scan_partitions();
-
/* Look for ours */
p = nvram_find_partition(part->name, NVRAM_SIG_OS, &size);
@@ -795,6 +792,9 @@ static int __init pseries_nvram_init_log_partitions(void)
{
int rc;
+ /* Scan nvram for partitions */
+ nvram_scan_partitions();
+
rc = pseries_nvram_init_os_partition(&rtas_log_partition);
nvram_init_oops_partition(rc == 0);
return 0;
@@ -804,7 +804,7 @@ machine_arch_initcall(pseries, pseries_nvram_init_log_partitions);
int __init pSeries_nvram_init(void)
{
struct device_node *nvram;
- const unsigned int *nbytes_p;
+ const __be32 *nbytes_p;
unsigned int proplen;
nvram = of_find_node_by_type(NULL, "nvram");
@@ -817,7 +817,7 @@ int __init pSeries_nvram_init(void)
return -EIO;
}
- nvram_size = *nbytes_p;
+ nvram_size = be32_to_cpup(nbytes_p);
nvram_fetch = rtas_token("nvram-fetch");
nvram_store = rtas_token("nvram-store");
diff --git a/arch/powerpc/platforms/pseries/rng.c b/arch/powerpc/platforms/pseries/rng.c
new file mode 100644
index 000000000000..a702f1c08242
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/rng.c
@@ -0,0 +1,44 @@
+/*
+ * Copyright 2013, Michael Ellerman, 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.
+ */
+
+#define pr_fmt(fmt) "pseries-rng: " fmt
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <asm/archrandom.h>
+#include <asm/machdep.h>
+
+
+static int pseries_get_random_long(unsigned long *v)
+{
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ if (plpar_hcall(H_RANDOM, retbuf) == H_SUCCESS) {
+ *v = retbuf[0];
+ return 1;
+ }
+
+ return 0;
+}
+
+static __init int rng_init(void)
+{
+ struct device_node *dn;
+
+ dn = of_find_compatible_node(NULL, NULL, "ibm,random");
+ if (!dn)
+ return -ENODEV;
+
+ pr_info("Registering arch random hook.\n");
+
+ ppc_md.get_random_long = pseries_get_random_long;
+
+ return 0;
+}
+subsys_initcall(rng_init);
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