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-rw-r--r--arch/powerpc/platforms/pseries/Makefile1
-rw-r--r--arch/powerpc/platforms/pseries/eeh.c96
-rw-r--r--arch/powerpc/platforms/pseries/eeh_cache.c17
-rw-r--r--arch/powerpc/platforms/pseries/eeh_driver.c112
-rw-r--r--arch/powerpc/platforms/pseries/eeh_event.c4
-rw-r--r--arch/powerpc/platforms/pseries/firmware.c2
-rw-r--r--arch/powerpc/platforms/pseries/hvCall.S273
-rw-r--r--arch/powerpc/platforms/pseries/hvCall_inst.c129
-rw-r--r--arch/powerpc/platforms/pseries/hvconsole.c5
-rw-r--r--arch/powerpc/platforms/pseries/iommu.c13
-rw-r--r--arch/powerpc/platforms/pseries/lpar.c46
-rw-r--r--arch/powerpc/platforms/pseries/nvram.c5
-rw-r--r--arch/powerpc/platforms/pseries/pci.c2
-rw-r--r--arch/powerpc/platforms/pseries/plpar_wrappers.h107
-rw-r--r--arch/powerpc/platforms/pseries/ras.c4
-rw-r--r--arch/powerpc/platforms/pseries/rtasd.c4
-rw-r--r--arch/powerpc/platforms/pseries/setup.c42
-rw-r--r--arch/powerpc/platforms/pseries/smp.c12
-rw-r--r--arch/powerpc/platforms/pseries/xics.c44
19 files changed, 581 insertions, 337 deletions
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index e5e0ff466904..997243a91be8 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -12,3 +12,4 @@ obj-$(CONFIG_EEH) += eeh.o eeh_cache.o eeh_driver.o eeh_event.o
obj-$(CONFIG_HVC_CONSOLE) += hvconsole.o
obj-$(CONFIG_HVCS) += hvcserver.o
+obj-$(CONFIG_HCALL_STATS) += hvCall_inst.o
diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 32eaddfa5470..84bc8f7e17ef 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -449,7 +449,11 @@ EXPORT_SYMBOL(eeh_check_failure);
/* ------------------------------------------------------------- */
/* The code below deals with error recovery */
-/** Return negative value if a permanent error, else return
+/**
+ * eeh_slot_availability - returns error status of slot
+ * @pdn pci device node
+ *
+ * Return negative value if a permanent error, else return
* a number of milliseconds to wait until the PCI slot is
* ready to be used.
*/
@@ -474,11 +478,42 @@ eeh_slot_availability(struct pci_dn *pdn)
printk (KERN_ERR "EEH: Slot unavailable: rc=%d, rets=%d %d %d\n",
rc, rets[0], rets[1], rets[2]);
- return -1;
+ return -2;
+}
+
+/**
+ * rtas_pci_enable - enable MMIO or DMA transfers for this slot
+ * @pdn pci device node
+ */
+
+int
+rtas_pci_enable(struct pci_dn *pdn, int function)
+{
+ int config_addr;
+ int rc;
+
+ /* Use PE configuration address, if present */
+ config_addr = pdn->eeh_config_addr;
+ if (pdn->eeh_pe_config_addr)
+ config_addr = pdn->eeh_pe_config_addr;
+
+ rc = rtas_call(ibm_set_eeh_option, 4, 1, NULL,
+ config_addr,
+ BUID_HI(pdn->phb->buid),
+ BUID_LO(pdn->phb->buid),
+ function);
+
+ if (rc)
+ printk(KERN_WARNING "EEH: Cannot enable function %d, err=%d dn=%s\n",
+ function, rc, pdn->node->full_name);
+
+ return rc;
}
-/** rtas_pci_slot_reset raises/lowers the pci #RST line
- * state: 1/0 to raise/lower the #RST
+/**
+ * rtas_pci_slot_reset - raises/lowers the pci #RST line
+ * @pdn pci device node
+ * @state: 1/0 to raise/lower the #RST
*
* Clear the EEH-frozen condition on a slot. This routine
* asserts the PCI #RST line if the 'state' argument is '1',
@@ -511,24 +546,21 @@ rtas_pci_slot_reset(struct pci_dn *pdn, int state)
BUID_HI(pdn->phb->buid),
BUID_LO(pdn->phb->buid),
state);
- if (rc) {
- printk (KERN_WARNING "EEH: Unable to reset the failed slot, (%d) #RST=%d dn=%s\n",
+ if (rc)
+ printk (KERN_WARNING "EEH: Unable to reset the failed slot,"
+ " (%d) #RST=%d dn=%s\n",
rc, state, pdn->node->full_name);
- return;
- }
}
-/** rtas_set_slot_reset -- assert the pci #RST line for 1/4 second
- * dn -- device node to be reset.
+/**
+ * rtas_set_slot_reset -- assert the pci #RST line for 1/4 second
+ * @pdn: pci device node to be reset.
*
* Return 0 if success, else a non-zero value.
*/
-int
-rtas_set_slot_reset(struct pci_dn *pdn)
+static void __rtas_set_slot_reset(struct pci_dn *pdn)
{
- int i, rc;
-
rtas_pci_slot_reset (pdn, 1);
/* The PCI bus requires that the reset be held high for at least
@@ -549,17 +581,33 @@ rtas_set_slot_reset(struct pci_dn *pdn)
* up traffic. */
#define PCI_BUS_SETTLE_TIME_MSEC 1800
msleep (PCI_BUS_SETTLE_TIME_MSEC);
+}
+
+int rtas_set_slot_reset(struct pci_dn *pdn)
+{
+ int i, rc;
+
+ __rtas_set_slot_reset(pdn);
/* Now double check with the firmware to make sure the device is
* ready to be used; if not, wait for recovery. */
for (i=0; i<10; i++) {
rc = eeh_slot_availability (pdn);
- if (rc < 0)
- printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n", rc, pdn->node->full_name);
if (rc == 0)
return 0;
- if (rc < 0)
+
+ if (rc == -2) {
+ printk (KERN_ERR "EEH: failed (%d) to reset slot %s\n",
+ i, pdn->node->full_name);
+ __rtas_set_slot_reset(pdn);
+ continue;
+ }
+
+ if (rc < 0) {
+ printk (KERN_ERR "EEH: unrecoverable slot failure %s\n",
+ pdn->node->full_name);
return -1;
+ }
msleep (rc+100);
}
@@ -582,6 +630,8 @@ rtas_set_slot_reset(struct pci_dn *pdn)
/**
* __restore_bars - Restore the Base Address Registers
+ * @pdn: pci device node
+ *
* Loads the PCI configuration space base address registers,
* the expansion ROM base address, the latency timer, and etc.
* from the saved values in the device node.
@@ -691,11 +741,11 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
{
struct eeh_early_enable_info *info = data;
int ret;
- char *status = get_property(dn, "status", NULL);
- u32 *class_code = (u32 *)get_property(dn, "class-code", NULL);
- u32 *vendor_id = (u32 *)get_property(dn, "vendor-id", NULL);
- u32 *device_id = (u32 *)get_property(dn, "device-id", NULL);
- u32 *regs;
+ const char *status = get_property(dn, "status", NULL);
+ const u32 *class_code = get_property(dn, "class-code", NULL);
+ const u32 *vendor_id = get_property(dn, "vendor-id", NULL);
+ const u32 *device_id = get_property(dn, "device-id", NULL);
+ const u32 *regs;
int enable;
struct pci_dn *pdn = PCI_DN(dn);
@@ -737,7 +787,7 @@ static void *early_enable_eeh(struct device_node *dn, void *data)
/* Ok... see if this device supports EEH. Some do, some don't,
* and the only way to find out is to check each and every one. */
- regs = (u32 *)get_property(dn, "reg", NULL);
+ regs = get_property(dn, "reg", NULL);
if (regs) {
/* First register entry is addr (00BBSS00) */
/* Try to enable eeh */
diff --git a/arch/powerpc/platforms/pseries/eeh_cache.c b/arch/powerpc/platforms/pseries/eeh_cache.c
index c37a8497c60f..b6b462d3c604 100644
--- a/arch/powerpc/platforms/pseries/eeh_cache.c
+++ b/arch/powerpc/platforms/pseries/eeh_cache.c
@@ -157,6 +157,7 @@ pci_addr_cache_insert(struct pci_dev *dev, unsigned long alo,
if (!piar)
return NULL;
+ pci_dev_get(dev);
piar->addr_lo = alo;
piar->addr_hi = ahi;
piar->pcidev = dev;
@@ -178,7 +179,6 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
struct device_node *dn;
struct pci_dn *pdn;
int i;
- int inserted = 0;
dn = pci_device_to_OF_node(dev);
if (!dn) {
@@ -197,9 +197,6 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
return;
}
- /* The cache holds a reference to the device... */
- pci_dev_get(dev);
-
/* Walk resources on this device, poke them into the tree */
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
unsigned long start = pci_resource_start(dev,i);
@@ -212,12 +209,7 @@ static void __pci_addr_cache_insert_device(struct pci_dev *dev)
if (start == 0 || ~start == 0 || end == 0 || ~end == 0)
continue;
pci_addr_cache_insert(dev, start, end, flags);
- inserted = 1;
}
-
- /* If there was nothing to add, the cache has no reference... */
- if (!inserted)
- pci_dev_put(dev);
}
/**
@@ -240,7 +232,6 @@ void pci_addr_cache_insert_device(struct pci_dev *dev)
static inline void __pci_addr_cache_remove_device(struct pci_dev *dev)
{
struct rb_node *n;
- int removed = 0;
restart:
n = rb_first(&pci_io_addr_cache_root.rb_root);
@@ -250,16 +241,12 @@ restart:
if (piar->pcidev == dev) {
rb_erase(n, &pci_io_addr_cache_root.rb_root);
- removed = 1;
+ pci_dev_put(piar->pcidev);
kfree(piar);
goto restart;
}
n = rb_next(n);
}
-
- /* The cache no longer holds its reference to this device... */
- if (removed)
- pci_dev_put(dev);
}
/**
diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index aaad2c0afcbf..c2bc9904f1cb 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -77,8 +77,12 @@ static int irq_in_use(unsigned int irq)
}
/* ------------------------------------------------------- */
-/** eeh_report_error - report an EEH error to each device,
- * collect up and merge the device responses.
+/**
+ * eeh_report_error - report pci error to each device driver
+ *
+ * Report an EEH error to each device driver, collect up and
+ * merge the device driver responses. Cumulative response
+ * passed back in "userdata".
*/
static void eeh_report_error(struct pci_dev *dev, void *userdata)
@@ -96,24 +100,49 @@ static void eeh_report_error(struct pci_dev *dev, void *userdata)
PCI_DN(dn)->eeh_mode |= EEH_MODE_IRQ_DISABLED;
disable_irq_nosync(dev->irq);
}
- if (!driver->err_handler)
- return;
- if (!driver->err_handler->error_detected)
+ if (!driver->err_handler ||
+ !driver->err_handler->error_detected)
return;
rc = driver->err_handler->error_detected (dev, pci_channel_io_frozen);
if (*res == PCI_ERS_RESULT_NONE) *res = rc;
- if (*res == PCI_ERS_RESULT_NEED_RESET) return;
if (*res == PCI_ERS_RESULT_DISCONNECT &&
rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
}
-/** eeh_report_reset -- tell this device that the pci slot
- * has been reset.
+/**
+ * eeh_report_mmio_enabled - tell drivers that MMIO has been enabled
+ *
+ * Report an EEH error to each device driver, collect up and
+ * merge the device driver responses. Cumulative response
+ * passed back in "userdata".
+ */
+
+static void eeh_report_mmio_enabled(struct pci_dev *dev, void *userdata)
+{
+ enum pci_ers_result rc, *res = userdata;
+ struct pci_driver *driver = dev->driver;
+
+ // dev->error_state = pci_channel_mmio_enabled;
+
+ if (!driver ||
+ !driver->err_handler ||
+ !driver->err_handler->mmio_enabled)
+ return;
+
+ rc = driver->err_handler->mmio_enabled (dev);
+ if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+ if (*res == PCI_ERS_RESULT_DISCONNECT &&
+ rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
+}
+
+/**
+ * eeh_report_reset - tell device that slot has been reset
*/
static void eeh_report_reset(struct pci_dev *dev, void *userdata)
{
+ enum pci_ers_result rc, *res = userdata;
struct pci_driver *driver = dev->driver;
struct device_node *dn = pci_device_to_OF_node(dev);
@@ -124,14 +153,20 @@ static void eeh_report_reset(struct pci_dev *dev, void *userdata)
PCI_DN(dn)->eeh_mode &= ~EEH_MODE_IRQ_DISABLED;
enable_irq(dev->irq);
}
- if (!driver->err_handler)
- return;
- if (!driver->err_handler->slot_reset)
+ if (!driver->err_handler ||
+ !driver->err_handler->slot_reset)
return;
- driver->err_handler->slot_reset(dev);
+ rc = driver->err_handler->slot_reset(dev);
+ if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+ if (*res == PCI_ERS_RESULT_DISCONNECT &&
+ rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
}
+/**
+ * eeh_report_resume - tell device to resume normal operations
+ */
+
static void eeh_report_resume(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
@@ -148,6 +183,13 @@ static void eeh_report_resume(struct pci_dev *dev, void *userdata)
driver->err_handler->resume(dev);
}
+/**
+ * eeh_report_failure - tell device driver that device is dead.
+ *
+ * This informs the device driver that the device is permanently
+ * dead, and that no further recovery attempts will be made on it.
+ */
+
static void eeh_report_failure(struct pci_dev *dev, void *userdata)
{
struct pci_driver *driver = dev->driver;
@@ -190,11 +232,11 @@ static void eeh_report_failure(struct pci_dev *dev, void *userdata)
/**
* eeh_reset_device() -- perform actual reset of a pci slot
- * Args: bus: pointer to the pci bus structure corresponding
+ * @bus: pointer to the pci bus structure corresponding
* to the isolated slot. A non-null value will
* cause all devices under the bus to be removed
* and then re-added.
- * pe_dn: pointer to a "Partionable Endpoint" device node.
+ * @pe_dn: pointer to a "Partionable Endpoint" device node.
* This is the top-level structure on which pci
* bus resets can be performed.
*/
@@ -268,14 +310,14 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event)
if (!frozen_dn) {
- location = (char *) get_property(event->dn, "ibm,loc-code", NULL);
+ location = get_property(event->dn, "ibm,loc-code", NULL);
location = location ? location : "unknown";
printk(KERN_ERR "EEH: Error: Cannot find partition endpoint "
"for location=%s pci addr=%s\n",
location, pci_name(event->dev));
return NULL;
}
- location = (char *) get_property(frozen_dn, "ibm,loc-code", NULL);
+ location = get_property(frozen_dn, "ibm,loc-code", NULL);
location = location ? location : "unknown";
/* There are two different styles for coming up with the PE.
@@ -347,23 +389,43 @@ struct pci_dn * handle_eeh_events (struct eeh_event *event)
goto hard_fail;
}
- /* If any device called out for a reset, then reset the slot */
- if (result == PCI_ERS_RESULT_NEED_RESET) {
- rc = eeh_reset_device(frozen_pdn, NULL);
- if (rc)
- goto hard_fail;
- pci_walk_bus(frozen_bus, eeh_report_reset, NULL);
+ /* If all devices reported they can proceed, then re-enable MMIO */
+ if (result == PCI_ERS_RESULT_CAN_RECOVER) {
+ rc = rtas_pci_enable(frozen_pdn, EEH_THAW_MMIO);
+
+ if (rc) {
+ result = PCI_ERS_RESULT_NEED_RESET;
+ } else {
+ result = PCI_ERS_RESULT_NONE;
+ pci_walk_bus(frozen_bus, eeh_report_mmio_enabled, &result);
+ }
}
- /* If all devices reported they can proceed, the re-enable PIO */
+ /* If all devices reported they can proceed, then re-enable DMA */
if (result == PCI_ERS_RESULT_CAN_RECOVER) {
- /* XXX Not supported; we brute-force reset the device */
+ rc = rtas_pci_enable(frozen_pdn, EEH_THAW_DMA);
+
+ if (rc)
+ result = PCI_ERS_RESULT_NEED_RESET;
+ }
+
+ /* If any device has a hard failure, then shut off everything. */
+ if (result == PCI_ERS_RESULT_DISCONNECT)
+ goto hard_fail;
+
+ /* If any device called out for a reset, then reset the slot */
+ if (result == PCI_ERS_RESULT_NEED_RESET) {
rc = eeh_reset_device(frozen_pdn, NULL);
if (rc)
goto hard_fail;
- pci_walk_bus(frozen_bus, eeh_report_reset, NULL);
+ result = PCI_ERS_RESULT_NONE;
+ pci_walk_bus(frozen_bus, eeh_report_reset, &result);
}
+ /* All devices should claim they have recovered by now. */
+ if (result != PCI_ERS_RESULT_RECOVERED)
+ goto hard_fail;
+
/* Tell all device drivers that they can resume operations */
pci_walk_bus(frozen_bus, eeh_report_resume, NULL);
diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 45ccc687e57c..137077451316 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -124,11 +124,11 @@ int eeh_send_failure_event (struct device_node *dn,
{
unsigned long flags;
struct eeh_event *event;
- char *location;
+ const char *location;
if (!mem_init_done) {
printk(KERN_ERR "EEH: event during early boot not handled\n");
- location = (char *) get_property(dn, "ibm,loc-code", NULL);
+ location = get_property(dn, "ibm,loc-code", NULL);
printk(KERN_ERR "EEH: device node = %s\n", dn->full_name);
printk(KERN_ERR "EEH: PCI location = %s\n", location);
return 1;
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index c01d8f0cbe6d..1c7b2baa5f73 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -68,7 +68,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
void __init fw_feature_init(void)
{
struct device_node *dn;
- char *hypertas, *s;
+ const char *hypertas, *s;
int len, i;
DBG(" -> fw_feature_init()\n");
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index c9ff547f9d25..c00cfed7af2c 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -1,7 +1,6 @@
/*
* This file contains the generic code to perform a call to the
* pSeries LPAR hypervisor.
- * NOTE: this file will go away when we move to inline this work.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
@@ -11,217 +10,153 @@
#include <asm/hvcall.h>
#include <asm/processor.h>
#include <asm/ppc_asm.h>
+#include <asm/asm-offsets.h>
#define STK_PARM(i) (48 + ((i)-3)*8)
- .text
-
-/* long plpar_hcall(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long *out1, R8
- unsigned long *out2, R9
- unsigned long *out3); R10
+#ifdef CONFIG_HCALL_STATS
+/*
+ * precall must preserve all registers. use unused STK_PARM()
+ * areas to save snapshots and opcode.
*/
-_GLOBAL(plpar_hcall)
- HMT_MEDIUM
-
- mfcr r0
-
- std r8,STK_PARM(r8)(r1) /* Save out ptrs */
- std r9,STK_PARM(r9)(r1)
- std r10,STK_PARM(r10)(r1)
-
- stw r0,8(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
-
- ld r8,STK_PARM(r8)(r1) /* Fetch r4-r6 ret args */
- ld r9,STK_PARM(r9)(r1)
- ld r10,STK_PARM(r10)(r1)
- std r4,0(r8)
- std r5,0(r9)
- std r6,0(r10)
-
- mtcrf 0xff,r0
- blr /* return r3 = status */
+#define HCALL_INST_PRECALL \
+ std r3,STK_PARM(r3)(r1); /* save opcode */ \
+ mftb r0; /* get timebase and */ \
+ std r0,STK_PARM(r5)(r1); /* save for later */ \
+BEGIN_FTR_SECTION; \
+ mfspr r0,SPRN_PURR; /* get PURR and */ \
+ std r0,STK_PARM(r6)(r1); /* save for later */ \
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR);
+
+/*
+ * postcall is performed immediately before function return which
+ * allows liberal use of volatile registers.
+ */
+#define HCALL_INST_POSTCALL \
+ ld r4,STK_PARM(r3)(r1); /* validate opcode */ \
+ cmpldi cr7,r4,MAX_HCALL_OPCODE; \
+ bgt- cr7,1f; \
+ \
+ /* get time and PURR snapshots after hcall */ \
+ mftb r7; /* timebase after */ \
+BEGIN_FTR_SECTION; \
+ mfspr r8,SPRN_PURR; /* PURR after */ \
+ ld r6,STK_PARM(r6)(r1); /* PURR before */ \
+ subf r6,r6,r8; /* delta */ \
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \
+ ld r5,STK_PARM(r5)(r1); /* timebase before */ \
+ subf r5,r5,r7; /* time delta */ \
+ \
+ /* calculate address of stat structure r4 = opcode */ \
+ srdi r4,r4,2; /* index into array */ \
+ mulli r4,r4,HCALL_STAT_SIZE; \
+ LOAD_REG_ADDR(r7, per_cpu__hcall_stats); \
+ add r4,r4,r7; \
+ ld r7,PACA_DATA_OFFSET(r13); /* per cpu offset */ \
+ add r4,r4,r7; \
+ \
+ /* update stats */ \
+ ld r7,HCALL_STAT_CALLS(r4); /* count */ \
+ addi r7,r7,1; \
+ std r7,HCALL_STAT_CALLS(r4); \
+ ld r7,HCALL_STAT_TB(r4); /* timebase */ \
+ add r7,r7,r5; \
+ std r7,HCALL_STAT_TB(r4); \
+BEGIN_FTR_SECTION; \
+ ld r7,HCALL_STAT_PURR(r4); /* PURR */ \
+ add r7,r7,r6; \
+ std r7,HCALL_STAT_PURR(r4); \
+END_FTR_SECTION_IFCLR(CPU_FTR_PURR); \
+1:
+#else
+#define HCALL_INST_PRECALL
+#define HCALL_INST_POSTCALL
+#endif
+ .text
-/* Simple interface with no output values (other than status) */
_GLOBAL(plpar_hcall_norets)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
- mtcrf 0xff,r0
- blr /* return r3 = status */
-
-
-/* long plpar_hcall_8arg_2ret(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long arg5, R8
- unsigned long arg6, R9
- unsigned long arg7, R10
- unsigned long arg8, 112(R1)
- unsigned long *out1); 120(R1)
- */
-_GLOBAL(plpar_hcall_8arg_2ret)
- HMT_MEDIUM
-
- mfcr r0
- ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
- stw r0,8(r1)
+ HCALL_INST_PRECALL
HVSC /* invoke the hypervisor */
+ HCALL_INST_POSTCALL
+
lwz r0,8(r1)
- ld r10,STK_PARM(r12)(r1) /* Fetch r4 ret arg */
- std r4,0(r10)
mtcrf 0xff,r0
blr /* return r3 = status */
-
-/* long plpar_hcall_4out(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long *out1, R8
- unsigned long *out2, R9
- unsigned long *out3, R10
- unsigned long *out4); 112(R1)
- */
-_GLOBAL(plpar_hcall_4out)
+_GLOBAL(plpar_hcall)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
- std r8,STK_PARM(r8)(r1) /* Save out ptrs */
- std r9,STK_PARM(r9)(r1)
- std r10,STK_PARM(r10)(r1)
-
- HVSC /* invoke the hypervisor */
-
- lwz r0,8(r1)
+ HCALL_INST_PRECALL
- ld r8,STK_PARM(r8)(r1) /* Fetch r4-r7 ret args */
- ld r9,STK_PARM(r9)(r1)
- ld r10,STK_PARM(r10)(r1)
- ld r11,STK_PARM(r11)(r1)
- std r4,0(r8)
- std r5,0(r9)
- std r6,0(r10)
- std r7,0(r11)
+ std r4,STK_PARM(r4)(r1) /* Save ret buffer */
- mtcrf 0xff,r0
- blr /* return r3 = status */
-
-/* plpar_hcall_7arg_7ret(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long arg5, R8
- unsigned long arg6, R9
- unsigned long arg7, R10
- unsigned long *out1, 112(R1)
- unsigned long *out2, 110(R1)
- unsigned long *out3, 108(R1)
- unsigned long *out4, 106(R1)
- unsigned long *out5, 104(R1)
- unsigned long *out6, 102(R1)
- unsigned long *out7); 100(R1)
-*/
-_GLOBAL(plpar_hcall_7arg_7ret)
- HMT_MEDIUM
-
- mfcr r0
- stw r0,8(r1)
+ mr r4,r5
+ mr r5,r6
+ mr r6,r7
+ mr r7,r8
+ mr r8,r9
+ mr r9,r10
HVSC /* invoke the hypervisor */
- lwz r0,8(r1)
+ ld r12,STK_PARM(r4)(r1)
+ std r4, 0(r12)
+ std r5, 8(r12)
+ std r6, 16(r12)
+ std r7, 24(r12)
- ld r11,STK_PARM(r11)(r1) /* Fetch r4 ret arg */
- std r4,0(r11)
- ld r11,STK_PARM(r12)(r1) /* Fetch r5 ret arg */
- std r5,0(r11)
- ld r11,STK_PARM(r13)(r1) /* Fetch r6 ret arg */
- std r6,0(r11)
- ld r11,STK_PARM(r14)(r1) /* Fetch r7 ret arg */
- std r7,0(r11)
- ld r11,STK_PARM(r15)(r1) /* Fetch r8 ret arg */
- std r8,0(r11)
- ld r11,STK_PARM(r16)(r1) /* Fetch r9 ret arg */
- std r9,0(r11)
- ld r11,STK_PARM(r17)(r1) /* Fetch r10 ret arg */
- std r10,0(r11)
+ HCALL_INST_POSTCALL
+ lwz r0,8(r1)
mtcrf 0xff,r0
blr /* return r3 = status */
-/* plpar_hcall_9arg_9ret(unsigned long opcode, R3
- unsigned long arg1, R4
- unsigned long arg2, R5
- unsigned long arg3, R6
- unsigned long arg4, R7
- unsigned long arg5, R8
- unsigned long arg6, R9
- unsigned long arg7, R10
- unsigned long arg8, 112(R1)
- unsigned long arg9, 110(R1)
- unsigned long *out1, 108(R1)
- unsigned long *out2, 106(R1)
- unsigned long *out3, 104(R1)
- unsigned long *out4, 102(R1)
- unsigned long *out5, 100(R1)
- unsigned long *out6, 98(R1)
- unsigned long *out7); 96(R1)
- unsigned long *out8, 94(R1)
- unsigned long *out9, 92(R1)
-*/
-_GLOBAL(plpar_hcall_9arg_9ret)
+_GLOBAL(plpar_hcall9)
HMT_MEDIUM
mfcr r0
stw r0,8(r1)
- ld r11,STK_PARM(r11)(r1) /* put arg8 in R11 */
- ld r12,STK_PARM(r12)(r1) /* put arg9 in R12 */
+ HCALL_INST_PRECALL
+
+ std r4,STK_PARM(r4)(r1) /* Save ret buffer */
+
+ mr r4,r5
+ mr r5,r6
+ mr r6,r7
+ mr r7,r8
+ mr r8,r9
+ mr r9,r10
+ ld r10,STK_PARM(r11)(r1) /* put arg7 in R10 */
+ ld r11,STK_PARM(r12)(r1) /* put arg8 in R11 */
+ ld r12,STK_PARM(r13)(r1) /* put arg9 in R12 */
HVSC /* invoke the hypervisor */
- ld r0,STK_PARM(r13)(r1) /* Fetch r4 ret arg */
- stdx r4,r0,r0
- ld r0,STK_PARM(r14)(r1) /* Fetch r5 ret arg */
- stdx r5,r0,r0
- ld r0,STK_PARM(r15)(r1) /* Fetch r6 ret arg */
- stdx r6,r0,r0
- ld r0,STK_PARM(r16)(r1) /* Fetch r7 ret arg */
- stdx r7,r0,r0
- ld r0,STK_PARM(r17)(r1) /* Fetch r8 ret arg */
- stdx r8,r0,r0
- ld r0,STK_PARM(r18)(r1) /* Fetch r9 ret arg */
- stdx r9,r0,r0
- ld r0,STK_PARM(r19)(r1) /* Fetch r10 ret arg */
- stdx r10,r0,r0
- ld r0,STK_PARM(r20)(r1) /* Fetch r11 ret arg */
- stdx r11,r0,r0
- ld r0,STK_PARM(r21)(r1) /* Fetch r12 ret arg */
- stdx r12,r0,r0
+ ld r12,STK_PARM(r4)(r1)
+ std r4, 0(r12)
+ std r5, 8(r12)
+ std r6, 16(r12)
+ std r7, 24(r12)
+ std r8, 32(r12)
+ std r9, 40(r12)
+ std r10,48(r12)
+ std r11,56(r12)
+ std r12,64(r12)
+
+ HCALL_INST_POSTCALL
lwz r0,8(r1)
mtcrf 0xff,r0
diff --git a/arch/powerpc/platforms/pseries/hvCall_inst.c b/arch/powerpc/platforms/pseries/hvCall_inst.c
new file mode 100644
index 000000000000..641e6511cf06
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/hvCall_inst.c
@@ -0,0 +1,129 @@
+/*
+ * Copyright (C) 2006 Mike Kravetz IBM Corporation
+ *
+ * Hypervisor Call Instrumentation
+ *
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/kernel.h>
+#include <linux/percpu.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/cpumask.h>
+#include <asm/hvcall.h>
+#include <asm/firmware.h>
+#include <asm/cputable.h>
+
+DEFINE_PER_CPU(struct hcall_stats[HCALL_STAT_ARRAY_SIZE], hcall_stats);
+
+/*
+ * Routines for displaying the statistics in debugfs
+ */
+static void *hc_start(struct seq_file *m, loff_t *pos)
+{
+ if ((int)*pos < HCALL_STAT_ARRAY_SIZE)
+ return (void *)(unsigned long)(*pos + 1);
+
+ return NULL;
+}
+
+static void *hc_next(struct seq_file *m, void *p, loff_t * pos)
+{
+ ++*pos;
+
+ return hc_start(m, pos);
+}
+
+static void hc_stop(struct seq_file *m, void *p)
+{
+}
+
+static int hc_show(struct seq_file *m, void *p)
+{
+ unsigned long h_num = (unsigned long)p;
+ struct hcall_stats *hs = (struct hcall_stats *)m->private;
+
+ if (hs[h_num].num_calls) {
+ if (!cpu_has_feature(CPU_FTR_PURR))
+ seq_printf(m, "%lu %lu %lu %lu\n", h_num<<2,
+ hs[h_num].num_calls,
+ hs[h_num].tb_total,
+ hs[h_num].purr_total);
+ else
+ seq_printf(m, "%lu %lu %lu\n", h_num<<2,
+ hs[h_num].num_calls,
+ hs[h_num].tb_total);
+ }
+
+ return 0;
+}
+
+static struct seq_operations hcall_inst_seq_ops = {
+ .start = hc_start,
+ .next = hc_next,
+ .stop = hc_stop,
+ .show = hc_show
+};
+
+static int hcall_inst_seq_open(struct inode *inode, struct file *file)
+{
+ int rc;
+ struct seq_file *seq;
+
+ rc = seq_open(file, &hcall_inst_seq_ops);
+ seq = file->private_data;
+ seq->private = file->f_dentry->d_inode->u.generic_ip;
+
+ return rc;
+}
+
+static struct file_operations hcall_inst_seq_fops = {
+ .open = hcall_inst_seq_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = seq_release,
+};
+
+#define HCALL_ROOT_DIR "hcall_inst"
+#define CPU_NAME_BUF_SIZE 32
+
+static int __init hcall_inst_init(void)
+{
+ struct dentry *hcall_root;
+ struct dentry *hcall_file;
+ char cpu_name_buf[CPU_NAME_BUF_SIZE];
+ int cpu;
+
+ if (!firmware_has_feature(FW_FEATURE_LPAR))
+ return 0;
+
+ hcall_root = debugfs_create_dir(HCALL_ROOT_DIR, NULL);
+ if (!hcall_root)
+ return -ENOMEM;
+
+ for_each_possible_cpu(cpu) {
+ snprintf(cpu_name_buf, CPU_NAME_BUF_SIZE, "cpu%d", cpu);
+ hcall_file = debugfs_create_file(cpu_name_buf, S_IRUGO,
+ hcall_root,
+ per_cpu(hcall_stats, cpu),
+ &hcall_inst_seq_fops);
+ if (!hcall_file)
+ return -ENOMEM;
+ }
+
+ return 0;
+}
+__initcall(hcall_inst_init);
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index a72a987f1d4d..3f6a89b09816 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -27,6 +27,7 @@
#include <linux/module.h>
#include <asm/hvcall.h>
#include <asm/hvconsole.h>
+#include "plpar_wrappers.h"
/**
* hvc_get_chars - retrieve characters from firmware for denoted vterm adatper
@@ -40,9 +41,9 @@ int hvc_get_chars(uint32_t vtermno, char *buf, int count)
{
unsigned long got;
- if (plpar_hcall(H_GET_TERM_CHAR, vtermno, 0, 0, 0, &got,
- (unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS)
+ if (plpar_get_term_char(vtermno, &got, buf) == H_SUCCESS)
return got;
+
return 0;
}
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index d67af2c65754..bbf2e34dc358 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -267,13 +267,12 @@ static void iommu_table_setparms(struct pci_controller *phb,
struct iommu_table *tbl)
{
struct device_node *node;
- unsigned long *basep;
- unsigned int *sizep;
+ const unsigned long *basep, *sizep;
node = (struct device_node *)phb->arch_data;
- basep = (unsigned long *)get_property(node, "linux,tce-base", NULL);
- sizep = (unsigned int *)get_property(node, "linux,tce-size", NULL);
+ basep = get_property(node, "linux,tce-base", NULL);
+ sizep = get_property(node, "linux,tce-size", NULL);
if (basep == NULL || sizep == NULL) {
printk(KERN_ERR "PCI_DMA: iommu_table_setparms: %s has "
"missing tce entries !\n", dn->full_name);
@@ -315,7 +314,7 @@ static void iommu_table_setparms(struct pci_controller *phb,
static void iommu_table_setparms_lpar(struct pci_controller *phb,
struct device_node *dn,
struct iommu_table *tbl,
- unsigned char *dma_window)
+ const void *dma_window)
{
unsigned long offset, size;
@@ -415,7 +414,7 @@ static void iommu_bus_setup_pSeriesLP(struct pci_bus *bus)
struct iommu_table *tbl;
struct device_node *dn, *pdn;
struct pci_dn *ppci;
- unsigned char *dma_window = NULL;
+ const void *dma_window = NULL;
DBG("iommu_bus_setup_pSeriesLP, bus %p, bus->self %p\n", bus, bus->self);
@@ -519,7 +518,7 @@ static void iommu_dev_setup_pSeriesLP(struct pci_dev *dev)
{
struct device_node *pdn, *dn;
struct iommu_table *tbl;
- unsigned char *dma_window = NULL;
+ const void *dma_window = NULL;
struct pci_dn *pci;
DBG("iommu_dev_setup_pSeriesLP, dev %p (%s)\n", dev, pci_name(dev));
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 3aeb40699042..1820a0b0a8c6 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -48,13 +48,11 @@
#define DBG_LOW(fmt...) do { } while(0)
#endif
-/* in pSeries_hvCall.S */
+/* in hvCall.S */
EXPORT_SYMBOL(plpar_hcall);
-EXPORT_SYMBOL(plpar_hcall_4out);
+EXPORT_SYMBOL(plpar_hcall9);
EXPORT_SYMBOL(plpar_hcall_norets);
-EXPORT_SYMBOL(plpar_hcall_8arg_2ret);
-EXPORT_SYMBOL(plpar_hcall_7arg_7ret);
-EXPORT_SYMBOL(plpar_hcall_9arg_9ret);
+
extern void pSeries_find_serial_port(void);
@@ -204,20 +202,20 @@ void __init udbg_init_debug_lpar(void)
void __init find_udbg_vterm(void)
{
struct device_node *stdout_node;
- u32 *termno;
- char *name;
+ const u32 *termno;
+ const char *name;
int add_console;
/* find the boot console from /chosen/stdout */
if (!of_chosen)
return;
- name = (char *)get_property(of_chosen, "linux,stdout-path", NULL);
+ name = get_property(of_chosen, "linux,stdout-path", NULL);
if (name == NULL)
return;
stdout_node = of_find_node_by_path(name);
if (!stdout_node)
return;
- name = (char *)get_property(stdout_node, "name", NULL);
+ name = get_property(stdout_node, "name", NULL);
if (!name) {
printk(KERN_WARNING "stdout node missing 'name' property!\n");
goto out;
@@ -228,7 +226,7 @@ void __init find_udbg_vterm(void)
/* Check if it's a virtual terminal */
if (strncmp(name, "vty", 3) != 0)
goto out;
- termno = (u32 *)get_property(stdout_node, "reg", NULL);
+ termno = get_property(stdout_node, "reg", NULL);
if (termno == NULL)
goto out;
vtermno = termno[0];
@@ -254,18 +252,34 @@ out:
void vpa_init(int cpu)
{
int hwcpu = get_hard_smp_processor_id(cpu);
- unsigned long vpa = __pa(&lppaca[cpu]);
+ unsigned long addr;
long ret;
if (cpu_has_feature(CPU_FTR_ALTIVEC))
lppaca[cpu].vmxregs_in_use = 1;
- ret = register_vpa(hwcpu, vpa);
+ addr = __pa(&lppaca[cpu]);
+ ret = register_vpa(hwcpu, addr);
- if (ret)
+ if (ret) {
printk(KERN_ERR "WARNING: vpa_init: VPA registration for "
"cpu %d (hw %d) of area %lx returns %ld\n",
- cpu, hwcpu, vpa, ret);
+ cpu, hwcpu, addr, ret);
+ return;
+ }
+ /*
+ * PAPR says this feature is SLB-Buffer but firmware never
+ * reports that. All SPLPAR support SLB shadow buffer.
+ */
+ addr = __pa(&slb_shadow[cpu]);
+ if (firmware_has_feature(FW_FEATURE_SPLPAR)) {
+ ret = register_slb_shadow(hwcpu, addr);
+ if (ret)
+ printk(KERN_ERR
+ "WARNING: vpa_init: SLB shadow buffer "
+ "registration for cpu %d (hw %d) of area %lx "
+ "returns %ld\n", cpu, hwcpu, addr, ret);
+ }
}
long pSeries_lpar_hpte_insert(unsigned long hpte_group,
@@ -277,7 +291,6 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
unsigned long flags;
unsigned long slot;
unsigned long hpte_v, hpte_r;
- unsigned long dummy0, dummy1;
if (!(vflags & HPTE_V_BOLTED))
DBG_LOW("hpte_insert(group=%lx, va=%016lx, pa=%016lx, "
@@ -302,8 +315,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
if (rflags & (_PAGE_GUARDED|_PAGE_NO_CACHE))
hpte_r &= ~_PAGE_COHERENT;
- lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
- hpte_r, &slot, &dummy0, &dummy1);
+ lpar_rc = plpar_pte_enter(flags, hpte_group, hpte_v, hpte_r, &slot);
if (unlikely(lpar_rc == H_PTEG_FULL)) {
if (!(vflags & HPTE_V_BOLTED))
DBG_LOW(" full\n");
diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c
index 18abfb1f4e24..64163cecdf93 100644
--- a/arch/powerpc/platforms/pseries/nvram.c
+++ b/arch/powerpc/platforms/pseries/nvram.c
@@ -123,13 +123,14 @@ static ssize_t pSeries_nvram_get_size(void)
int __init pSeries_nvram_init(void)
{
struct device_node *nvram;
- unsigned int *nbytes_p, proplen;
+ const unsigned int *nbytes_p;
+ unsigned int proplen;
nvram = of_find_node_by_type(NULL, "nvram");
if (nvram == NULL)
return -ENODEV;
- nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+ nbytes_p = get_property(nvram, "#bytes", &proplen);
if (nbytes_p == NULL || proplen != sizeof(unsigned int))
return -EIO;
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index e97e67f5e079..410a6bcc4ca0 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -60,7 +60,7 @@ DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, pcibios_name_device);
static void __devinit check_s7a(void)
{
struct device_node *root;
- char *model;
+ const char *model;
s7a_workaround = 0;
root = of_find_node_by_path("/");
diff --git a/arch/powerpc/platforms/pseries/plpar_wrappers.h b/arch/powerpc/platforms/pseries/plpar_wrappers.h
index 3bd1b3e06003..3eb7b294d92f 100644
--- a/arch/powerpc/platforms/pseries/plpar_wrappers.h
+++ b/arch/powerpc/platforms/pseries/plpar_wrappers.h
@@ -5,20 +5,17 @@
static inline long poll_pending(void)
{
- unsigned long dummy;
- return plpar_hcall(H_POLL_PENDING, 0, 0, 0, 0, &dummy, &dummy, &dummy);
+ return plpar_hcall_norets(H_POLL_PENDING);
}
static inline long prod_processor(void)
{
- plpar_hcall_norets(H_PROD);
- return 0;
+ return plpar_hcall_norets(H_PROD);
}
static inline long cede_processor(void)
{
- plpar_hcall_norets(H_CEDE);
- return 0;
+ return plpar_hcall_norets(H_CEDE);
}
static inline long vpa_call(unsigned long flags, unsigned long cpu,
@@ -40,23 +37,59 @@ static inline long register_vpa(unsigned long cpu, unsigned long vpa)
return vpa_call(0x1, cpu, vpa);
}
+static inline long unregister_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+ return vpa_call(0x7, cpu, vpa);
+}
+
+static inline long register_slb_shadow(unsigned long cpu, unsigned long vpa)
+{
+ return vpa_call(0x3, cpu, vpa);
+}
+
extern void vpa_init(int cpu);
+static inline long plpar_pte_enter(unsigned long flags,
+ unsigned long hpte_group, unsigned long hpte_v,
+ unsigned long hpte_r, unsigned long *slot)
+{
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall(H_ENTER, retbuf, flags, hpte_group, hpte_v, hpte_r);
+
+ *slot = retbuf[0];
+
+ return rc;
+}
+
static inline long plpar_pte_remove(unsigned long flags, unsigned long ptex,
unsigned long avpn, unsigned long *old_pteh_ret,
unsigned long *old_ptel_ret)
{
- unsigned long dummy;
- return plpar_hcall(H_REMOVE, flags, ptex, avpn, 0, old_pteh_ret,
- old_ptel_ret, &dummy);
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall(H_REMOVE, retbuf, flags, ptex, avpn);
+
+ *old_pteh_ret = retbuf[0];
+ *old_ptel_ret = retbuf[1];
+
+ return rc;
}
static inline long plpar_pte_read(unsigned long flags, unsigned long ptex,
unsigned long *old_pteh_ret, unsigned long *old_ptel_ret)
{
- unsigned long dummy;
- return plpar_hcall(H_READ, flags, ptex, 0, 0, old_pteh_ret,
- old_ptel_ret, &dummy);
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall(H_READ, retbuf, flags, ptex);
+
+ *old_pteh_ret = retbuf[0];
+ *old_ptel_ret = retbuf[1];
+
+ return rc;
}
static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
@@ -68,9 +101,14 @@ static inline long plpar_pte_protect(unsigned long flags, unsigned long ptex,
static inline long plpar_tce_get(unsigned long liobn, unsigned long ioba,
unsigned long *tce_ret)
{
- unsigned long dummy;
- return plpar_hcall(H_GET_TCE, liobn, ioba, 0, 0, tce_ret, &dummy,
- &dummy);
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall(H_GET_TCE, retbuf, liobn, ioba);
+
+ *tce_ret = retbuf[0];
+
+ return rc;
}
static inline long plpar_tce_put(unsigned long liobn, unsigned long ioba,
@@ -94,9 +132,17 @@ static inline long plpar_tce_stuff(unsigned long liobn, unsigned long ioba,
static inline long plpar_get_term_char(unsigned long termno,
unsigned long *len_ret, char *buf_ret)
{
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
unsigned long *lbuf = (unsigned long *)buf_ret; /* TODO: alignment? */
- return plpar_hcall(H_GET_TERM_CHAR, termno, 0, 0, 0, len_ret,
- lbuf + 0, lbuf + 1);
+
+ rc = plpar_hcall(H_GET_TERM_CHAR, retbuf, termno);
+
+ *len_ret = retbuf[0];
+ lbuf[0] = retbuf[1];
+ lbuf[1] = retbuf[2];
+
+ return rc;
}
static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
@@ -107,4 +153,31 @@ static inline long plpar_put_term_char(unsigned long termno, unsigned long len,
lbuf[1]);
}
+static inline long plpar_eoi(unsigned long xirr)
+{
+ return plpar_hcall_norets(H_EOI, xirr);
+}
+
+static inline long plpar_cppr(unsigned long cppr)
+{
+ return plpar_hcall_norets(H_CPPR, cppr);
+}
+
+static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
+{
+ return plpar_hcall_norets(H_IPI, servernum, mfrr);
+}
+
+static inline long plpar_xirr(unsigned long *xirr_ret)
+{
+ long rc;
+ unsigned long retbuf[PLPAR_HCALL_BUFSIZE];
+
+ rc = plpar_hcall(H_XIRR, retbuf);
+
+ *xirr_ret = retbuf[0];
+
+ return rc;
+}
+
#endif /* _PSERIES_PLPAR_WRAPPERS_H */
diff --git a/arch/powerpc/platforms/pseries/ras.c b/arch/powerpc/platforms/pseries/ras.c
index c7ffde1a614e..903115d67fdc 100644
--- a/arch/powerpc/platforms/pseries/ras.c
+++ b/arch/powerpc/platforms/pseries/ras.c
@@ -79,7 +79,7 @@ static void request_ras_irqs(struct device_node *np,
{
int i, index, count = 0;
struct of_irq oirq;
- u32 *opicprop;
+ const u32 *opicprop;
unsigned int opicplen;
unsigned int virqs[16];
@@ -87,7 +87,7 @@ static void request_ras_irqs(struct device_node *np,
* map those interrupts using the default interrupt host and default
* trigger
*/
- opicprop = (u32 *)get_property(np, "open-pic-interrupt", &opicplen);
+ opicprop = get_property(np, "open-pic-interrupt", &opicplen);
if (opicprop) {
opicplen /= sizeof(u32);
for (i = 0; i < opicplen; i++) {
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index 2e4e04042d85..8ca2612221d6 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -359,11 +359,11 @@ static int enable_surveillance(int timeout)
static int get_eventscan_parms(void)
{
struct device_node *node;
- int *ip;
+ const int *ip;
node = of_find_node_by_path("/rtas");
- ip = (int *)get_property(node, "rtas-event-scan-rate", NULL);
+ ip = get_property(node, "rtas-event-scan-rate", NULL);
if (ip == NULL) {
printk(KERN_ERR "rtasd: no rtas-event-scan-rate\n");
of_node_put(node);
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 31867a701fcb..a6398fbe530d 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -133,9 +133,9 @@ void pseries_8259_cascade(unsigned int irq, struct irq_desc *desc,
static void __init pseries_mpic_init_IRQ(void)
{
struct device_node *np, *old, *cascade = NULL;
- unsigned int *addrp;
+ const unsigned int *addrp;
unsigned long intack = 0;
- unsigned int *opprop;
+ const unsigned int *opprop;
unsigned long openpic_addr = 0;
unsigned int cascade_irq;
int naddr, n, i, opplen;
@@ -143,7 +143,7 @@ static void __init pseries_mpic_init_IRQ(void)
np = of_find_node_by_path("/");
naddr = prom_n_addr_cells(np);
- opprop = (unsigned int *) get_property(np, "platform-open-pic", &opplen);
+ opprop = get_property(np, "platform-open-pic", &opplen);
if (opprop != 0) {
openpic_addr = of_read_number(opprop, naddr);
printk(KERN_DEBUG "OpenPIC addr: %lx\n", openpic_addr);
@@ -192,7 +192,7 @@ static void __init pseries_mpic_init_IRQ(void)
break;
if (strcmp(np->name, "pci") != 0)
continue;
- addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge",
+ addrp = get_property(np, "8259-interrupt-acknowledge",
NULL);
if (addrp == NULL)
continue;
@@ -223,23 +223,37 @@ static void pseries_lpar_enable_pmcs(void)
}
#ifdef CONFIG_KEXEC
-static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
-{
- mpic_teardown_this_cpu(secondary);
-}
-
-static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
+static void pseries_kexec_cpu_down(int crash_shutdown, int secondary)
{
/* Don't risk a hypervisor call if we're crashing */
if (firmware_has_feature(FW_FEATURE_SPLPAR) && !crash_shutdown) {
- unsigned long vpa = __pa(get_lppaca());
+ unsigned long addr;
- if (unregister_vpa(hard_smp_processor_id(), vpa)) {
+ addr = __pa(get_slb_shadow());
+ if (unregister_slb_shadow(hard_smp_processor_id(), addr))
+ printk("SLB shadow buffer deregistration of "
+ "cpu %u (hw_cpu_id %d) failed\n",
+ smp_processor_id(),
+ hard_smp_processor_id());
+
+ addr = __pa(get_lppaca());
+ if (unregister_vpa(hard_smp_processor_id(), addr)) {
printk("VPA deregistration of cpu %u (hw_cpu_id %d) "
"failed\n", smp_processor_id(),
hard_smp_processor_id());
}
}
+}
+
+static void pseries_kexec_cpu_down_mpic(int crash_shutdown, int secondary)
+{
+ pseries_kexec_cpu_down(crash_shutdown, secondary);
+ mpic_teardown_this_cpu(secondary);
+}
+
+static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
+{
+ pseries_kexec_cpu_down(crash_shutdown, secondary);
xics_teardown_cpu(secondary);
}
#endif /* CONFIG_KEXEC */
@@ -247,11 +261,11 @@ static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
static void __init pseries_discover_pic(void)
{
struct device_node *np;
- char *typep;
+ const char *typep;
for (np = NULL; (np = of_find_node_by_name(np,
"interrupt-controller"));) {
- typep = (char *)get_property(np, "compatible", NULL);
+ typep = get_property(np, "compatible", NULL);
if (strstr(typep, "open-pic")) {
pSeries_mpic_node = of_node_get(np);
ppc_md.init_IRQ = pseries_mpic_init_IRQ;
diff --git a/arch/powerpc/platforms/pseries/smp.c b/arch/powerpc/platforms/pseries/smp.c
index ac61098ff401..c6624b8a0e77 100644
--- a/arch/powerpc/platforms/pseries/smp.c
+++ b/arch/powerpc/platforms/pseries/smp.c
@@ -62,7 +62,7 @@
*/
static cpumask_t of_spin_map;
-extern void pSeries_secondary_smp_init(unsigned long);
+extern void generic_secondary_smp_init(unsigned long);
#ifdef CONFIG_HOTPLUG_CPU
@@ -145,9 +145,9 @@ static int pSeries_add_processor(struct device_node *np)
unsigned int cpu;
cpumask_t candidate_map, tmp = CPU_MASK_NONE;
int err = -ENOSPC, len, nthreads, i;
- u32 *intserv;
+ const u32 *intserv;
- intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+ intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
if (!intserv)
return 0;
@@ -205,9 +205,9 @@ static void pSeries_remove_processor(struct device_node *np)
{
unsigned int cpu;
int len, nthreads, i;
- u32 *intserv;
+ const u32 *intserv;
- intserv = (u32 *)get_property(np, "ibm,ppc-interrupt-server#s", &len);
+ intserv = get_property(np, "ibm,ppc-interrupt-server#s", &len);
if (!intserv)
return;
@@ -270,7 +270,7 @@ static inline int __devinit smp_startup_cpu(unsigned int lcpu)
{
int status;
unsigned long start_here = __pa((u32)*((unsigned long *)
- pSeries_secondary_smp_init));
+ generic_secondary_smp_init));
unsigned int pcpu;
int start_cpu;
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index e98863025721..253972e5479f 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -34,6 +34,7 @@
#include <asm/i8259.h>
#include "xics.h"
+#include "plpar_wrappers.h"
#define XICS_IPI 2
#define XICS_IRQ_SPURIOUS 0
@@ -110,27 +111,6 @@ static inline void direct_qirr_info(int n_cpu, u8 value)
/* LPAR low level accessors */
-static inline long plpar_eoi(unsigned long xirr)
-{
- return plpar_hcall_norets(H_EOI, xirr);
-}
-
-static inline long plpar_cppr(unsigned long cppr)
-{
- return plpar_hcall_norets(H_CPPR, cppr);
-}
-
-static inline long plpar_ipi(unsigned long servernum, unsigned long mfrr)
-{
- return plpar_hcall_norets(H_IPI, servernum, mfrr);
-}
-
-static inline long plpar_xirr(unsigned long *xirr_ret)
-{
- unsigned long dummy;
- return plpar_hcall(H_XIRR, 0, 0, 0, 0, xirr_ret, &dummy, &dummy);
-}
-
static inline unsigned int lpar_xirr_info_get(int n_cpu)
{
unsigned long lpar_rc;
@@ -590,14 +570,14 @@ static void __init xics_init_one_node(struct device_node *np,
unsigned int *indx)
{
unsigned int ilen;
- u32 *ireg;
+ const u32 *ireg;
/* This code does the theorically broken assumption that the interrupt
* server numbers are the same as the hard CPU numbers.
* This happens to be the case so far but we are playing with fire...
* should be fixed one of these days. -BenH.
*/
- ireg = (u32 *)get_property(np, "ibm,interrupt-server-ranges", NULL);
+ ireg = get_property(np, "ibm,interrupt-server-ranges", NULL);
/* Do that ever happen ? we'll know soon enough... but even good'old
* f80 does have that property ..
@@ -609,7 +589,7 @@ static void __init xics_init_one_node(struct device_node *np,
*/
*indx = *ireg;
}
- ireg = (u32 *)get_property(np, "reg", &ilen);
+ ireg = get_property(np, "reg", &ilen);
if (!ireg)
panic("xics_init_IRQ: can't find interrupt reg property");
@@ -635,7 +615,7 @@ static void __init xics_setup_8259_cascade(void)
{
struct device_node *np, *old, *found = NULL;
int cascade, naddr;
- u32 *addrp;
+ const u32 *addrp;
unsigned long intack = 0;
for_each_node_by_type(np, "interrupt-controller")
@@ -661,7 +641,7 @@ static void __init xics_setup_8259_cascade(void)
break;
if (strcmp(np->name, "pci") != 0)
continue;
- addrp = (u32 *)get_property(np, "8259-interrupt-acknowledge", NULL);
+ addrp = get_property(np, "8259-interrupt-acknowledge", NULL);
if (addrp == NULL)
continue;
naddr = prom_n_addr_cells(np);
@@ -680,7 +660,8 @@ void __init xics_init_IRQ(void)
{
int i;
struct device_node *np;
- u32 *ireg, ilen, indx = 0;
+ u32 ilen, indx = 0;
+ const u32 *ireg;
int found = 0;
ppc64_boot_msg(0x20, "XICS Init");
@@ -705,18 +686,17 @@ void __init xics_init_IRQ(void)
for (np = of_find_node_by_type(NULL, "cpu");
np;
np = of_find_node_by_type(np, "cpu")) {
- ireg = (u32 *)get_property(np, "reg", &ilen);
+ ireg = get_property(np, "reg", &ilen);
if (ireg && ireg[0] == get_hard_smp_processor_id(boot_cpuid)) {
- ireg = (u32 *)get_property(np,
- "ibm,ppc-interrupt-gserver#s",
- &ilen);
+ ireg = get_property(np,
+ "ibm,ppc-interrupt-gserver#s", &ilen);
i = ilen / sizeof(int);
if (ireg && i > 0) {
default_server = ireg[0];
/* take last element */
default_distrib_server = ireg[i-1];
}
- ireg = (u32 *)get_property(np,
+ ireg = get_property(np,
"ibm,interrupt-server#-size", NULL);
if (ireg)
interrupt_server_size = *ireg;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-21 08:00:22 +0000