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authorLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 19:04:58 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-07-15 19:04:58 -0700
commit45158894d4d6704afbb4cefe55e5f6ca279fe12a (patch)
treed57e745e2d0848d75cd4a46ca04178b16f186b50 /arch/powerpc/platforms/pseries
parent89a93f2f4834f8c126e8d9dd6b368d0b9e21ec3d (diff)
parent84c3d4aaec3338201b449034beac41635866bddf (diff)
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: (249 commits) powerpc: Fix pte_update for CONFIG_PTE_64BIT and !PTE_ATOMIC_UPDATES powerpc: Fix a build problem on ppc32 with new DMA_ATTRs ibm_newemac: Add MII mode support to the EMAC RGMII bridge. powerpc: Don't spin on sync instruction at boot time powerpc: Add VSX load/store alignment exception handler powerpc: fix giveup_vsx to save registers correctly powerpc: support for latencytop powerpc: Remove unnecessary condition when sanity-checking WIMG bits powerpc: Add PPC_FEATURE_PSERIES_PERFMON_COMPAT powerpc: Add driver for Barrier Synchronization Register powerpc: mman.h export fixups powerpc/fsl: update crypto node definition and device tree instances powerpc/fsl: Refactor device bindings powerpc/85xx: Minor fixes for 85xxds and 8536ds board. powerpc: Add 82xx/83xx/86xx to 6xx Multiplatform powerpc/85xx: publish of device for cds platforms powerpc/booke: don't reinitialize time base powerpc/86xx: Refactor pic init powerpc/CPM: Add i2c pins to dts and board setup cpm_uart: Support uart_wait_until_sent() ...
Diffstat (limited to 'arch/powerpc/platforms/pseries')
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c14
-rw-r--r--arch/powerpc/platforms/pseries/firmware.c1
-rw-r--r--arch/powerpc/platforms/pseries/hotplug-memory.c117
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c15
-rw-r--r--arch/powerpc/platforms/pseries/kexec.c2
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c4
-rw-r--r--arch/powerpc/platforms/pseries/ras.c2
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c38
-rw-r--r--arch/powerpc/platforms/pseries/rtasd.c4
-rw-r--r--arch/powerpc/platforms/pseries/setup.c4
10 files changed, 143 insertions, 58 deletions
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 6f544ba4b37f..c027f0a70a04 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -812,6 +812,7 @@ int rtas_set_slot_reset(struct pci_dn *pdn)
static inline void __restore_bars (struct pci_dn *pdn)
{
int i;
+ u32 cmd;
if (NULL==pdn->phb) return;
for (i=4; i<10; i++) {
@@ -832,6 +833,19 @@ static inline void __restore_bars (struct pci_dn *pdn)
/* max latency, min grant, interrupt pin and line */
rtas_write_config(pdn, 15*4, 4, pdn->config_space[15]);
+
+ /* Restore PERR & SERR bits, some devices require it,
+ don't touch the other command bits */
+ rtas_read_config(pdn, PCI_COMMAND, 4, &cmd);
+ if (pdn->config_space[1] & PCI_COMMAND_PARITY)
+ cmd |= PCI_COMMAND_PARITY;
+ else
+ cmd &= ~PCI_COMMAND_PARITY;
+ if (pdn->config_space[1] & PCI_COMMAND_SERR)
+ cmd |= PCI_COMMAND_SERR;
+ else
+ cmd &= ~PCI_COMMAND_SERR;
+ rtas_write_config(pdn, PCI_COMMAND, 4, cmd);
}
/**
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 9d3a40f45974..5a707da3f5c2 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -26,6 +26,7 @@
#include <asm/prom.h>
#include <asm/udbg.h>
+#include "pseries.h"
typedef struct {
unsigned long val;
diff --git a/arch/powerpc/platforms/pseries/hotplug-memory.c b/arch/powerpc/platforms/pseries/hotplug-memory.c
index 3c5727dd5aa5..a1a368dd2d99 100644
--- a/arch/powerpc/platforms/pseries/hotplug-memory.c
+++ b/arch/powerpc/platforms/pseries/hotplug-memory.c
@@ -15,34 +15,13 @@
#include <asm/machdep.h>
#include <asm/pSeries_reconfig.h>
-static int pseries_remove_memory(struct device_node *np)
+static int pseries_remove_lmb(unsigned long base, unsigned int lmb_size)
{
- const char *type;
- const unsigned int *my_index;
- const unsigned int *regs;
- u64 start_pfn, start;
+ unsigned long start, start_pfn;
struct zone *zone;
- int ret = -EINVAL;
-
- /*
- * Check to see if we are actually removing memory
- */
- type = of_get_property(np, "device_type", NULL);
- if (type == NULL || strcmp(type, "memory") != 0)
- return 0;
+ int ret;
- /*
- * Find the memory index and size of the removing section
- */
- my_index = of_get_property(np, "ibm,my-drc-index", NULL);
- if (!my_index)
- return ret;
-
- regs = of_get_property(np, "reg", NULL);
- if (!regs)
- return ret;
-
- start_pfn = section_nr_to_pfn(*my_index & 0xffff);
+ start_pfn = base >> PFN_SECTION_SHIFT;
zone = page_zone(pfn_to_page(start_pfn));
/*
@@ -54,56 +33,111 @@ static int pseries_remove_memory(struct device_node *np)
* to sysfs "state" file and we can't remove sysfs entries
* while writing to it. So we have to defer it to here.
*/
- ret = __remove_pages(zone, start_pfn, regs[3] >> PAGE_SHIFT);
+ ret = __remove_pages(zone, start_pfn, lmb_size >> PAGE_SHIFT);
if (ret)
return ret;
/*
* Update memory regions for memory remove
*/
- lmb_remove(start_pfn << PAGE_SHIFT, regs[3]);
+ lmb_remove(base, lmb_size);
/*
* Remove htab bolted mappings for this section of memory
*/
- start = (unsigned long)__va(start_pfn << PAGE_SHIFT);
- ret = remove_section_mapping(start, start + regs[3]);
+ start = (unsigned long)__va(base);
+ ret = remove_section_mapping(start, start + lmb_size);
return ret;
}
-static int pseries_add_memory(struct device_node *np)
+static int pseries_remove_memory(struct device_node *np)
{
const char *type;
- const unsigned int *my_index;
const unsigned int *regs;
- u64 start_pfn;
+ unsigned long base;
+ unsigned int lmb_size;
int ret = -EINVAL;
/*
- * Check to see if we are actually adding memory
+ * Check to see if we are actually removing memory
*/
type = of_get_property(np, "device_type", NULL);
if (type == NULL || strcmp(type, "memory") != 0)
return 0;
/*
- * Find the memory index and size of the added section
+ * Find the bae address and size of the lmb
*/
- my_index = of_get_property(np, "ibm,my-drc-index", NULL);
- if (!my_index)
+ regs = of_get_property(np, "reg", NULL);
+ if (!regs)
return ret;
+ base = *(unsigned long *)regs;
+ lmb_size = regs[3];
+
+ ret = pseries_remove_lmb(base, lmb_size);
+ return ret;
+}
+
+static int pseries_add_memory(struct device_node *np)
+{
+ const char *type;
+ const unsigned int *regs;
+ unsigned long base;
+ unsigned int lmb_size;
+ int ret = -EINVAL;
+
+ /*
+ * Check to see if we are actually adding memory
+ */
+ type = of_get_property(np, "device_type", NULL);
+ if (type == NULL || strcmp(type, "memory") != 0)
+ return 0;
+
+ /*
+ * Find the base and size of the lmb
+ */
regs = of_get_property(np, "reg", NULL);
if (!regs)
return ret;
- start_pfn = section_nr_to_pfn(*my_index & 0xffff);
+ base = *(unsigned long *)regs;
+ lmb_size = regs[3];
/*
* Update memory region to represent the memory add
*/
- lmb_add(start_pfn << PAGE_SHIFT, regs[3]);
- return 0;
+ ret = lmb_add(base, lmb_size);
+ return (ret < 0) ? -EINVAL : 0;
+}
+
+static int pseries_drconf_memory(unsigned long *base, unsigned int action)
+{
+ struct device_node *np;
+ const unsigned long *lmb_size;
+ int rc;
+
+ np = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
+ if (!np)
+ return -EINVAL;
+
+ lmb_size = of_get_property(np, "ibm,lmb-size", NULL);
+ if (!lmb_size) {
+ of_node_put(np);
+ return -EINVAL;
+ }
+
+ if (action == PSERIES_DRCONF_MEM_ADD) {
+ rc = lmb_add(*base, *lmb_size);
+ rc = (rc < 0) ? -EINVAL : 0;
+ } else if (action == PSERIES_DRCONF_MEM_REMOVE) {
+ rc = pseries_remove_lmb(*base, *lmb_size);
+ } else {
+ rc = -EINVAL;
+ }
+
+ of_node_put(np);
+ return rc;
}
static int pseries_memory_notifier(struct notifier_block *nb,
@@ -120,6 +154,11 @@ static int pseries_memory_notifier(struct notifier_block *nb,
if (pseries_remove_memory(node))
err = NOTIFY_BAD;
break;
+ case PSERIES_DRCONF_MEM_ADD:
+ case PSERIES_DRCONF_MEM_REMOVE:
+ if (pseries_drconf_memory(node, action))
+ err = NOTIFY_BAD;
+ break;
default:
err = NOTIFY_DONE;
break;
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index 176f1f39d2d5..9a12908510fb 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -135,9 +135,10 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
u64 rpn;
long l, limit;
- if (npages == 1)
- return tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
- direction);
+ if (npages == 1) {
+ tce_build_pSeriesLP(tbl, tcenum, npages, uaddr, direction);
+ return;
+ }
tcep = __get_cpu_var(tce_page);
@@ -147,9 +148,11 @@ static void tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
if (!tcep) {
tcep = (u64 *)__get_free_page(GFP_ATOMIC);
/* If allocation fails, fall back to the loop implementation */
- if (!tcep)
- return tce_build_pSeriesLP(tbl, tcenum, npages,
- uaddr, direction);
+ if (!tcep) {
+ tce_build_pSeriesLP(tbl, tcenum, npages, uaddr,
+ direction);
+ return;
+ }
__get_cpu_var(tce_page) = tcep;
}
diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
index e9dd5fe081c9..53cbd53d8740 100644
--- a/arch/powerpc/platforms/pseries/kexec.c
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -70,4 +70,4 @@ static int __init pseries_kexec_setup(void)
return 0;
}
-__initcall(pseries_kexec_setup);
+machine_device_initcall(pseries, pseries_kexec_setup);
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 2cbaedb17f3e..52a80e5840e8 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -52,7 +52,7 @@ EXPORT_SYMBOL(plpar_hcall_norets);
extern void pSeries_find_serial_port(void);
-int vtermno; /* virtual terminal# for udbg */
+static int vtermno; /* virtual terminal# for udbg */
#define __ALIGNED__ __attribute__((__aligned__(sizeof(long))))
static void udbg_hvsi_putc(char c)
@@ -305,7 +305,7 @@ static long pSeries_lpar_hpte_insert(unsigned long hpte_group,
flags = 0;
/* Make pHyp happy */
- if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
+ if ((rflags & _PAGE_NO_CACHE) & !(rflags & _PAGE_WRITETHRU))
hpte_r &= ~_PAGE_COHERENT;
lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index 2b548afd1003..d20b96e22c2e 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -55,7 +55,7 @@
static unsigned char ras_log_buf[RTAS_ERROR_LOG_MAX];
static DEFINE_SPINLOCK(ras_log_buf_lock);
-char mce_data_buf[RTAS_ERROR_LOG_MAX];
+static char mce_data_buf[RTAS_ERROR_LOG_MAX];
static int ras_get_sensor_state_token;
static int ras_check_exception_token;
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 75769aae41d5..7637bd38c795 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -365,7 +365,7 @@ static char *parse_node(char *buf, size_t bufsize, struct device_node **npp)
*buf = '\0';
buf++;
- handle = simple_strtoul(handle_str, NULL, 10);
+ handle = simple_strtoul(handle_str, NULL, 0);
*npp = of_find_node_by_phandle(handle);
return buf;
@@ -422,8 +422,8 @@ static int do_update_property(char *buf, size_t bufsize)
{
struct device_node *np;
unsigned char *value;
- char *name, *end;
- int length;
+ char *name, *end, *next_prop;
+ int rc, length;
struct property *newprop, *oldprop;
buf = parse_node(buf, bufsize, &np);
end = buf + bufsize;
@@ -431,7 +431,8 @@ static int do_update_property(char *buf, size_t bufsize)
if (!np)
return -ENODEV;
- if (parse_next_property(buf, end, &name, &length, &value) == NULL)
+ next_prop = parse_next_property(buf, end, &name, &length, &value);
+ if (!next_prop)
return -EINVAL;
newprop = new_property(name, length, value, NULL);
@@ -442,7 +443,34 @@ static int do_update_property(char *buf, size_t bufsize)
if (!oldprop)
return -ENODEV;
- return prom_update_property(np, newprop, oldprop);
+ rc = prom_update_property(np, newprop, oldprop);
+ if (rc)
+ return rc;
+
+ /* For memory under the ibm,dynamic-reconfiguration-memory node
+ * of the device tree, adding and removing memory is just an update
+ * to the ibm,dynamic-memory property instead of adding/removing a
+ * memory node in the device tree. For these cases we still need to
+ * involve the notifier chain.
+ */
+ if (!strcmp(name, "ibm,dynamic-memory")) {
+ int action;
+
+ next_prop = parse_next_property(next_prop, end, &name,
+ &length, &value);
+ if (!next_prop)
+ return -EINVAL;
+
+ if (!strcmp(name, "add"))
+ action = PSERIES_DRCONF_MEM_ADD;
+ else
+ action = PSERIES_DRCONF_MEM_REMOVE;
+
+ blocking_notifier_call_chain(&pSeries_reconfig_chain,
+ action, value);
+ }
+
+ return 0;
}
/**
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 7d3e2b0bd4d2..c9ffd8c225f1 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -32,7 +32,7 @@
static DEFINE_SPINLOCK(rtasd_log_lock);
-DECLARE_WAIT_QUEUE_HEAD(rtas_log_wait);
+static DECLARE_WAIT_QUEUE_HEAD(rtas_log_wait);
static char *rtas_log_buf;
static unsigned long rtas_log_start;
@@ -329,7 +329,7 @@ static unsigned int rtas_log_poll(struct file *file, poll_table * wait)
return 0;
}
-const struct file_operations proc_rtas_log_operations = {
+static const struct file_operations proc_rtas_log_operations = {
.read = rtas_log_read,
.poll = rtas_log_poll,
.open = rtas_log_open,
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index f5d29f5b13c1..90beb444e1dd 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -109,7 +109,7 @@ static void __init fwnmi_init(void)
fwnmi_active = 1;
}
-void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
+static void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc)
{
unsigned int cascade_irq = i8259_irq();
if (cascade_irq != NO_IRQ)
@@ -482,7 +482,7 @@ static int pSeries_pci_probe_mode(struct pci_bus *bus)
* possible with power button press. If ibm,power-off-ups token is used
* it will allow auto poweron after power is restored.
*/
-void pSeries_power_off(void)
+static void pSeries_power_off(void)
{
int rc;
int rtas_poweroff_ups_token = rtas_token("ibm,power-off-ups");