From 72d2c3e038fb4846e32cf3f6d66ebd1013329986 Mon Sep 17 00:00:00 2001
From: Kumar Gala <galak@kernel.crashing.org>
Date: Thu, 30 Mar 2006 23:39:57 -0600
Subject: powerpc: converted embedded platforms to use new define_machine
 support

Removed platform_init usage on 83xx and 85xx and use define_machine and
probe().  For now we always return true in the problem since you can only
build for one specific board at a time.  This is an artificial constraint.
When we get ride of it we will need to update the Kconfig's for these
sub-arch's and make the board's probe() functions actually do something.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
---
 arch/powerpc/platforms/83xx/mpc834x_sys.c | 40 +++++++++++++++----------------
 arch/powerpc/platforms/85xx/mpc85xx_ads.c | 40 +++++++++++++++----------------
 2 files changed, 40 insertions(+), 40 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/83xx/mpc834x_sys.c b/arch/powerpc/platforms/83xx/mpc834x_sys.c
index 7c18b4cd5db4..7e789d2420ba 100644
--- a/arch/powerpc/platforms/83xx/mpc834x_sys.c
+++ b/arch/powerpc/platforms/83xx/mpc834x_sys.c
@@ -158,25 +158,25 @@ static int __init mpc834x_rtc_hookup(void)
 late_initcall(mpc834x_rtc_hookup);
 #endif
 
-void __init platform_init(void)
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc834x_sys_probe(void)
 {
-	/* setup the PowerPC module struct */
-	ppc_md.setup_arch = mpc834x_sys_setup_arch;
-
-	ppc_md.init_IRQ = mpc834x_sys_init_IRQ;
-	ppc_md.get_irq = ipic_get_irq;
-
-	ppc_md.restart = mpc83xx_restart;
-
-	ppc_md.time_init = mpc83xx_time_init;
-	ppc_md.set_rtc_time = NULL;
-	ppc_md.get_rtc_time = NULL;
-	ppc_md.calibrate_decr = generic_calibrate_decr;
-
-	ppc_md.progress = udbg_progress;
-
-	if (ppc_md.progress)
-		ppc_md.progress("mpc834x_sys_init(): exit", 0);
-
-	return;
+	/* We always match for now, eventually we should look at the flat
+	   dev tree to ensure this is the board we are suppose to run on
+	*/
+	return 1;
 }
+
+define_machine(mpc834x_sys) {
+	.name			= "MPC834x SYS",
+	.probe			= mpc834x_sys_probe,
+	.setup_arch		= mpc834x_sys_setup_arch,
+	.init_IRQ		= mpc834x_sys_init_IRQ,
+	.get_irq		= ipic_get_irq,
+	.restart		= mpc83xx_restart,
+	.time_init		= mpc83xx_time_init,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
diff --git a/arch/powerpc/platforms/85xx/mpc85xx_ads.c b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
index b7821dbae00d..5eeff370f5fc 100644
--- a/arch/powerpc/platforms/85xx/mpc85xx_ads.c
+++ b/arch/powerpc/platforms/85xx/mpc85xx_ads.c
@@ -220,25 +220,25 @@ void mpc85xx_ads_show_cpuinfo(struct seq_file *m)
 	seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024));
 }
 
-void __init platform_init(void)
+/*
+ * Called very early, device-tree isn't unflattened
+ */
+static int __init mpc85xx_ads_probe(void)
 {
-	ppc_md.setup_arch = mpc85xx_ads_setup_arch;
-	ppc_md.show_cpuinfo = mpc85xx_ads_show_cpuinfo;
-
-	ppc_md.init_IRQ = mpc85xx_ads_pic_init;
-	ppc_md.get_irq = mpic_get_irq;
-
-	ppc_md.restart = mpc85xx_restart;
-	ppc_md.power_off = NULL;
-	ppc_md.halt = NULL;
-
-	ppc_md.time_init = NULL;
-	ppc_md.set_rtc_time = NULL;
-	ppc_md.get_rtc_time = NULL;
-	ppc_md.calibrate_decr = generic_calibrate_decr;
-
-	ppc_md.progress = udbg_progress;
-
-	if (ppc_md.progress)
-		ppc_md.progress("mpc85xx_ads platform_init(): exit", 0);
+	/* We always match for now, eventually we should look at the flat
+	   dev tree to ensure this is the board we are suppose to run on
+	*/
+	return 1;
 }
+
+define_machine(mpc85xx_ads) {
+	.name			= "MPC85xx ADS",
+	.probe			= mpc85xx_ads_probe,
+	.setup_arch		= mpc85xx_ads_setup_arch,
+	.init_IRQ		= mpc85xx_ads_pic_init,
+	.show_cpuinfo		= mpc85xx_ads_show_cpuinfo,
+	.get_irq		= mpic_get_irq,
+	.restart		= mpc85xx_restart,
+	.calibrate_decr		= generic_calibrate_decr,
+	.progress		= udbg_progress,
+};
-- 
cgit v1.2.3


From 8c33fd11e3a21a15af35b5831f1516faf53094f1 Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Wed, 29 Mar 2006 15:29:18 -0600
Subject: [PATCH] powerpc/pseries: mutex lock to serialize EEH event processing

This forces the processing of EEH PCI events to be serialized,
using a very simple mutex lock. This serialization is required to
avoid races involving additional PCI device failures that may occur
during the recovery phase of a previous failure.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh_event.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/eeh_event.c b/arch/powerpc/platforms/pseries/eeh_event.c
index 9a9961f27480..a1bda6f96fd1 100644
--- a/arch/powerpc/platforms/pseries/eeh_event.c
+++ b/arch/powerpc/platforms/pseries/eeh_event.c
@@ -19,7 +19,9 @@
  */
 
 #include <linux/list.h>
+#include <linux/mutex.h>
 #include <linux/pci.h>
+#include <linux/workqueue.h>
 #include <asm/eeh_event.h>
 #include <asm/ppc-pci.h>
 
@@ -37,14 +39,18 @@ LIST_HEAD(eeh_eventlist);
 static void eeh_thread_launcher(void *);
 DECLARE_WORK(eeh_event_wq, eeh_thread_launcher, NULL);
 
+/* Serialize reset sequences for a given pci device */
+DEFINE_MUTEX(eeh_event_mutex);
+
 /**
- * eeh_event_handler - dispatch EEH events.  The detection of a frozen
- * slot can occur inside an interrupt, where it can be hard to do
- * anything about it.  The goal of this routine is to pull these
- * detection events out of the context of the interrupt handler, and
- * re-dispatch them for processing at a later time in a normal context.
- *
+ * eeh_event_handler - dispatch EEH events.
  * @dummy - unused
+ *
+ * The detection of a frozen slot can occur inside an interrupt,
+ * where it can be hard to do anything about it.  The goal of this
+ * routine is to pull these detection events out of the context
+ * of the interrupt handler, and re-dispatch them for processing
+ * at a later time in a normal context.
  */
 static int eeh_event_handler(void * dummy)
 {
@@ -64,23 +70,24 @@ static int eeh_event_handler(void * dummy)
 			event = list_entry(eeh_eventlist.next, struct eeh_event, list);
 			list_del(&event->list);
 		}
-		
-		if (event)
-			eeh_mark_slot(event->dn, EEH_MODE_RECOVERING);
-
 		spin_unlock_irqrestore(&eeh_eventlist_lock, flags);
+
 		if (event == NULL)
 			break;
 
+		/* Serialize processing of EEH events */
+		mutex_lock(&eeh_event_mutex);
+		eeh_mark_slot(event->dn, EEH_MODE_RECOVERING);
+
 		printk(KERN_INFO "EEH: Detected PCI bus error on device %s\n",
 		       pci_name(event->dev));
 
 		handle_eeh_events(event);
 
 		eeh_clear_slot(event->dn, EEH_MODE_RECOVERING);
-
 		pci_dev_put(event->dev);
 		kfree(event);
+		mutex_unlock(&eeh_event_mutex);
 	}
 
 	return 0;
@@ -88,7 +95,6 @@ static int eeh_event_handler(void * dummy)
 
 /**
  * eeh_thread_launcher
- *
  * @dummy - unused
  */
 static void eeh_thread_launcher(void *dummy)
-- 
cgit v1.2.3


From 8df83028cf52e3bf68dfd35a4b1a044b326a4a99 Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Wed, 29 Mar 2006 15:31:04 -0600
Subject: [PATCH] powerpc/pseries: print message if EEH recovery fails

The current code prints an ambiguous message if the recovery
of a failed PCI device fails. Give this special case its own
unique message.

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh_driver.c | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index cc2495a0cdd5..0c6b7d7ce9e8 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -301,7 +301,7 @@ void handle_eeh_events (struct eeh_event *event)
 	}
 	
 	if (frozen_pdn->eeh_freeze_count > EEH_MAX_ALLOWED_FREEZES)
-		goto hard_fail;
+		goto excess_failures;
 
 	/* If the reset state is a '5' and the time to reset is 0 (infinity)
 	 * or is more then 15 seconds, then mark this as a permanent failure.
@@ -356,7 +356,7 @@ void handle_eeh_events (struct eeh_event *event)
 
 	return;
 	
-hard_fail:
+excess_failures:
 	/*
 	 * About 90% of all real-life EEH failures in the field
 	 * are due to poorly seated PCI cards. Only 10% or so are
@@ -367,7 +367,15 @@ hard_fail:
 	   "and has been permanently disabled.  Please try reseating\n"
 	   "this device or replacing it.\n",
 		drv_str, pci_str, frozen_pdn->eeh_freeze_count);
+	goto perm_error;
+
+hard_fail:
+	printk(KERN_ERR
+	   "EEH: Unable to recover from failure of PCI device %s - %s\n"
+	   "Please try reseating this device or replacing it.\n",
+		drv_str, pci_str);
 
+perm_error:
 	eeh_slot_error_detail(frozen_pdn, 2 /* Permanent Error */);
 
 	/* Notify all devices that they're about to go down. */
-- 
cgit v1.2.3


From 706c8c93ba4865a19e981b9770151a7a63c15794 Mon Sep 17 00:00:00 2001
From: Segher Boessenkool <segher@kernel.crashing.org>
Date: Thu, 30 Mar 2006 14:49:40 +0200
Subject: [PATCH] powerpc/pseries: Change H_StudlyCaps to H_SHOUTING_CAPS

Also cleans up some nearby whitespace problems.

Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/lparcfg.c              | 22 ++++----
 arch/powerpc/kernel/rtas.c                 | 12 ++---
 arch/powerpc/platforms/pseries/hvconsole.c |  6 +--
 arch/powerpc/platforms/pseries/hvcserver.c | 22 ++++----
 arch/powerpc/platforms/pseries/lpar.c      | 28 +++++-----
 arch/powerpc/platforms/pseries/setup.c     |  2 +-
 arch/powerpc/platforms/pseries/vio.c       |  4 +-
 arch/powerpc/platforms/pseries/xics.c      |  8 +--
 drivers/char/hvcs.c                        |  2 +-
 drivers/net/ibmveth.c                      | 30 +++++------
 drivers/scsi/ibmvscsi/rpa_vscsi.c          | 10 ++--
 include/asm-powerpc/hvcall.h               | 85 ++++++++++++++++--------------
 12 files changed, 119 insertions(+), 112 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 1b73508ecb2b..8be687700a50 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -149,17 +149,17 @@ static void log_plpar_hcall_return(unsigned long rc, char *tag)
 	if (rc == 0)		/* success, return */
 		return;
 /* check for null tag ? */
-	if (rc == H_Hardware)
+	if (rc == H_HARDWARE)
 		printk(KERN_INFO
 		       "plpar-hcall (%s) failed with hardware fault\n", tag);
-	else if (rc == H_Function)
+	else if (rc == H_FUNCTION)
 		printk(KERN_INFO
 		       "plpar-hcall (%s) failed; function not allowed\n", tag);
-	else if (rc == H_Authority)
+	else if (rc == H_AUTHORITY)
 		printk(KERN_INFO
-		       "plpar-hcall (%s) failed; not authorized to this function\n",
-		       tag);
-	else if (rc == H_Parameter)
+		       "plpar-hcall (%s) failed; not authorized to this"
+		       " function\n", tag);
+	else if (rc == H_PARAMETER)
 		printk(KERN_INFO "plpar-hcall (%s) failed; Bad parameter(s)\n",
 		       tag);
 	else
@@ -209,7 +209,7 @@ static void h_pic(unsigned long *pool_idle_time, unsigned long *num_procs)
 	unsigned long dummy;
 	rc = plpar_hcall(H_PIC, 0, 0, 0, 0, pool_idle_time, num_procs, &dummy);
 
-	if (rc != H_Authority)
+	if (rc != H_AUTHORITY)
 		log_plpar_hcall_return(rc, "H_PIC");
 }
 
@@ -529,13 +529,13 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 	retval = plpar_hcall_norets(H_SET_PPP, *new_entitled_ptr,
 				    *new_weight_ptr);
 
-	if (retval == H_Success || retval == H_Constrained) {
+	if (retval == H_SUCCESS || retval == H_CONSTRAINED) {
 		retval = count;
-	} else if (retval == H_Busy) {
+	} else if (retval == H_BUSY) {
 		retval = -EBUSY;
-	} else if (retval == H_Hardware) {
+	} else if (retval == H_HARDWARE) {
 		retval = -EIO;
-	} else if (retval == H_Parameter) {
+	} else if (retval == H_PARAMETER) {
 		retval = -EINVAL;
 	} else {
 		printk(KERN_WARNING "%s: received unknown hv return code %ld",
diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c
index 06636c927a7e..0112318213ab 100644
--- a/arch/powerpc/kernel/rtas.c
+++ b/arch/powerpc/kernel/rtas.c
@@ -578,18 +578,18 @@ static void rtas_percpu_suspend_me(void *info)
 	 * We use "waiting" to indicate our state.  As long
 	 * as it is >0, we are still trying to all join up.
 	 * If it goes to 0, we have successfully joined up and
-	 * one thread got H_Continue.  If any error happens,
+	 * one thread got H_CONTINUE.  If any error happens,
 	 * we set it to <0.
 	 */
 	local_irq_save(flags);
 	do {
 		rc = plpar_hcall_norets(H_JOIN);
 		smp_rmb();
-	} while (rc == H_Success && data->waiting > 0);
-	if (rc == H_Success)
+	} while (rc == H_SUCCESS && data->waiting > 0);
+	if (rc == H_SUCCESS)
 		goto out;
 
-	if (rc == H_Continue) {
+	if (rc == H_CONTINUE) {
 		data->waiting = 0;
 		data->args->args[data->args->nargs] =
 			rtas_call(ibm_suspend_me_token, 0, 1, NULL);
@@ -597,7 +597,7 @@ static void rtas_percpu_suspend_me(void *info)
 			plpar_hcall_norets(H_PROD,i);
 	} else {
 		data->waiting = -EBUSY;
-		printk(KERN_ERR "Error on H_Join hypervisor call\n");
+		printk(KERN_ERR "Error on H_JOIN hypervisor call\n");
 	}
 
 out:
@@ -624,7 +624,7 @@ static int rtas_ibm_suspend_me(struct rtas_args *args)
 		printk(KERN_ERR "Error doing global join\n");
 
 	/* Prod each CPU.  This won't hurt, and will wake
-	 * anyone we successfully put to sleep with H_Join
+	 * anyone we successfully put to sleep with H_JOIN.
 	 */
 	for_each_possible_cpu(i)
 		plpar_hcall_norets(H_PROD, i);
diff --git a/arch/powerpc/platforms/pseries/hvconsole.c b/arch/powerpc/platforms/pseries/hvconsole.c
index ba6befd96636..a72a987f1d4d 100644
--- a/arch/powerpc/platforms/pseries/hvconsole.c
+++ b/arch/powerpc/platforms/pseries/hvconsole.c
@@ -41,7 +41,7 @@ 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)
+		(unsigned long *)buf, (unsigned long *)buf+1) == H_SUCCESS)
 		return got;
 	return 0;
 }
@@ -69,9 +69,9 @@ int hvc_put_chars(uint32_t vtermno, const char *buf, int count)
 
 	ret = plpar_hcall_norets(H_PUT_TERM_CHAR, vtermno, count, lbuf[0],
 				 lbuf[1]);
-	if (ret == H_Success)
+	if (ret == H_SUCCESS)
 		return count;
-	if (ret == H_Busy)
+	if (ret == H_BUSY)
 		return 0;
 	return -EIO;
 }
diff --git a/arch/powerpc/platforms/pseries/hvcserver.c b/arch/powerpc/platforms/pseries/hvcserver.c
index 22bfb5c89db9..fcf4b4cbeaf3 100644
--- a/arch/powerpc/platforms/pseries/hvcserver.c
+++ b/arch/powerpc/platforms/pseries/hvcserver.c
@@ -43,21 +43,21 @@ MODULE_VERSION(HVCS_ARCH_VERSION);
 static int hvcs_convert(long to_convert)
 {
 	switch (to_convert) {
-		case H_Success:
+		case H_SUCCESS:
 			return 0;
-		case H_Parameter:
+		case H_PARAMETER:
 			return -EINVAL;
-		case H_Hardware:
+		case H_HARDWARE:
 			return -EIO;
-		case H_Busy:
-		case H_LongBusyOrder1msec:
-		case H_LongBusyOrder10msec:
-		case H_LongBusyOrder100msec:
-		case H_LongBusyOrder1sec:
-		case H_LongBusyOrder10sec:
-		case H_LongBusyOrder100sec:
+		case H_BUSY:
+		case H_LONG_BUSY_ORDER_1_MSEC:
+		case H_LONG_BUSY_ORDER_10_MSEC:
+		case H_LONG_BUSY_ORDER_100_MSEC:
+		case H_LONG_BUSY_ORDER_1_SEC:
+		case H_LONG_BUSY_ORDER_10_SEC:
+		case H_LONG_BUSY_ORDER_100_SEC:
 			return -EBUSY;
-		case H_Function: /* fall through */
+		case H_FUNCTION: /* fall through */
 		default:
 			return -EPERM;
 	}
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index 8952528d31ac..c72c0918b44b 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -72,7 +72,7 @@ static void udbg_hvsi_putc(char c)
 
 	do {
 		rc = plpar_put_term_char(vtermno, sizeof(packet), packet);
-	} while (rc == H_Busy);
+	} while (rc == H_BUSY);
 }
 
 static long hvsi_udbg_buf_len;
@@ -85,7 +85,7 @@ static int udbg_hvsi_getc_poll(void)
 
 	if (hvsi_udbg_buf_len == 0) {
 		rc = plpar_get_term_char(vtermno, &hvsi_udbg_buf_len, hvsi_udbg_buf);
-		if (rc != H_Success || hvsi_udbg_buf[0] != 0xff) {
+		if (rc != H_SUCCESS || hvsi_udbg_buf[0] != 0xff) {
 			/* bad read or non-data packet */
 			hvsi_udbg_buf_len = 0;
 		} else {
@@ -139,7 +139,7 @@ static void udbg_putcLP(char c)
 	buf[0] = c;
 	do {
 		rc = plpar_put_term_char(vtermno, 1, buf);
-	} while(rc == H_Busy);
+	} while(rc == H_BUSY);
 }
 
 /* Buffered chars getc */
@@ -158,7 +158,7 @@ static int udbg_getc_pollLP(void)
 		/* get some more chars. */
 		inbuflen = 0;
 		rc = plpar_get_term_char(vtermno, &inbuflen, buf);
-		if (rc != H_Success)
+		if (rc != H_SUCCESS)
 			inbuflen = 0;	/* otherwise inbuflen is garbage */
 	}
 	if (inbuflen <= 0 || inbuflen > 16) {
@@ -304,7 +304,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
 
 	lpar_rc = plpar_hcall(H_ENTER, flags, hpte_group, hpte_v,
 			      hpte_r, &slot, &dummy0, &dummy1);
-	if (unlikely(lpar_rc == H_PTEG_Full)) {
+	if (unlikely(lpar_rc == H_PTEG_FULL)) {
 		if (!(vflags & HPTE_V_BOLTED))
 			DBG_LOW(" full\n");
 		return -1;
@@ -315,7 +315,7 @@ long pSeries_lpar_hpte_insert(unsigned long hpte_group,
 	 * will fail. However we must catch the failure in hash_page
 	 * or we will loop forever, so return -2 in this case.
 	 */
-	if (unlikely(lpar_rc != H_Success)) {
+	if (unlikely(lpar_rc != H_SUCCESS)) {
 		if (!(vflags & HPTE_V_BOLTED))
 			DBG_LOW(" lpar err %d\n", lpar_rc);
 		return -2;
@@ -346,9 +346,9 @@ static long pSeries_lpar_hpte_remove(unsigned long hpte_group)
 		/* don't remove a bolted entry */
 		lpar_rc = plpar_pte_remove(H_ANDCOND, hpte_group + slot_offset,
 					   (0x1UL << 4), &dummy1, &dummy2);
-		if (lpar_rc == H_Success)
+		if (lpar_rc == H_SUCCESS)
 			return i;
-		BUG_ON(lpar_rc != H_Not_Found);
+		BUG_ON(lpar_rc != H_NOT_FOUND);
 
 		slot_offset++;
 		slot_offset &= 0x7;
@@ -391,14 +391,14 @@ static long pSeries_lpar_hpte_updatepp(unsigned long slot,
 
 	lpar_rc = plpar_pte_protect(flags, slot, want_v & HPTE_V_AVPN);
 
-	if (lpar_rc == H_Not_Found) {
+	if (lpar_rc == H_NOT_FOUND) {
 		DBG_LOW("not found !\n");
 		return -1;
 	}
 
 	DBG_LOW("ok\n");
 
-	BUG_ON(lpar_rc != H_Success);
+	BUG_ON(lpar_rc != H_SUCCESS);
 
 	return 0;
 }
@@ -417,7 +417,7 @@ static unsigned long pSeries_lpar_hpte_getword0(unsigned long slot)
 
 	lpar_rc = plpar_pte_read(flags, slot, &dword0, &dummy_word1);
 
-	BUG_ON(lpar_rc != H_Success);
+	BUG_ON(lpar_rc != H_SUCCESS);
 
 	return dword0;
 }
@@ -468,7 +468,7 @@ static void pSeries_lpar_hpte_updateboltedpp(unsigned long newpp,
 	flags = newpp & 7;
 	lpar_rc = plpar_pte_protect(flags, slot, 0);
 
-	BUG_ON(lpar_rc != H_Success);
+	BUG_ON(lpar_rc != H_SUCCESS);
 }
 
 static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
@@ -484,10 +484,10 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
 	want_v = hpte_encode_v(va, psize);
 	lpar_rc = plpar_pte_remove(H_AVPN, slot, want_v & HPTE_V_AVPN,
 				   &dummy1, &dummy2);
-	if (lpar_rc == H_Not_Found)
+	if (lpar_rc == H_NOT_FOUND)
 		return;
 
-	BUG_ON(lpar_rc != H_Success);
+	BUG_ON(lpar_rc != H_SUCCESS);
 }
 
 /*
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index b2fbf8ba8fbb..5eb55ef1c91c 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -463,7 +463,7 @@ static void pseries_dedicated_idle_sleep(void)
 	 * very low priority.  The cede enables interrupts, which
 	 * doesn't matter here.
 	 */
-	if (!lppaca[cpu ^ 1].idle || poll_pending() == H_Pending)
+	if (!lppaca[cpu ^ 1].idle || poll_pending() == H_PENDING)
 		cede_processor();
 
 out:
diff --git a/arch/powerpc/platforms/pseries/vio.c b/arch/powerpc/platforms/pseries/vio.c
index 866379b80c09..8e53e04ada8b 100644
--- a/arch/powerpc/platforms/pseries/vio.c
+++ b/arch/powerpc/platforms/pseries/vio.c
@@ -258,7 +258,7 @@ EXPORT_SYMBOL(vio_find_node);
 int vio_enable_interrupts(struct vio_dev *dev)
 {
 	int rc = h_vio_signal(dev->unit_address, VIO_IRQ_ENABLE);
-	if (rc != H_Success)
+	if (rc != H_SUCCESS)
 		printk(KERN_ERR "vio: Error 0x%x enabling interrupts\n", rc);
 	return rc;
 }
@@ -267,7 +267,7 @@ EXPORT_SYMBOL(vio_enable_interrupts);
 int vio_disable_interrupts(struct vio_dev *dev)
 {
 	int rc = h_vio_signal(dev->unit_address, VIO_IRQ_DISABLE);
-	if (rc != H_Success)
+	if (rc != H_SUCCESS)
 		printk(KERN_ERR "vio: Error 0x%x disabling interrupts\n", rc);
 	return rc;
 }
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 4864cb32be25..2d60ea30fed6 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -168,7 +168,7 @@ static int pSeriesLP_xirr_info_get(int n_cpu)
 	unsigned long return_value;
 
 	lpar_rc = plpar_xirr(&return_value);
-	if (lpar_rc != H_Success)
+	if (lpar_rc != H_SUCCESS)
 		panic(" bad return code xirr - rc = %lx \n", lpar_rc);
 	return (int)return_value;
 }
@@ -179,7 +179,7 @@ static void pSeriesLP_xirr_info_set(int n_cpu, int value)
 	unsigned long val64 = value & 0xffffffff;
 
 	lpar_rc = plpar_eoi(val64);
-	if (lpar_rc != H_Success)
+	if (lpar_rc != H_SUCCESS)
 		panic("bad return code EOI - rc = %ld, value=%lx\n", lpar_rc,
 		      val64);
 }
@@ -189,7 +189,7 @@ void pSeriesLP_cppr_info(int n_cpu, u8 value)
 	unsigned long lpar_rc;
 
 	lpar_rc = plpar_cppr(value);
-	if (lpar_rc != H_Success)
+	if (lpar_rc != H_SUCCESS)
 		panic("bad return code cppr - rc = %lx\n", lpar_rc);
 }
 
@@ -198,7 +198,7 @@ static void pSeriesLP_qirr_info(int n_cpu , u8 value)
 	unsigned long lpar_rc;
 
 	lpar_rc = plpar_ipi(get_hard_smp_processor_id(n_cpu), value);
-	if (lpar_rc != H_Success)
+	if (lpar_rc != H_SUCCESS)
 		panic("bad return code qirr - rc = %lx\n", lpar_rc);
 }
 
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 327b00c3c45e..8d97b3911293 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -904,7 +904,7 @@ static int hvcs_enable_device(struct hvcs_struct *hvcsd, uint32_t unit_address,
 		 * It is possible the vty-server was removed after the irq was
 		 * requested but before we have time to enable interrupts.
 		 */
-		if (vio_enable_interrupts(vdev) == H_Success)
+		if (vio_enable_interrupts(vdev) == H_SUCCESS)
 			return 0;
 		else {
 			printk(KERN_ERR "HVCS: int enable failed for"
diff --git a/drivers/net/ibmveth.c b/drivers/net/ibmveth.c
index ceb98fd398af..52d01027d9e7 100644
--- a/drivers/net/ibmveth.c
+++ b/drivers/net/ibmveth.c
@@ -235,7 +235,7 @@ static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struc
 
 		lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc);
 		    
-		if(lpar_rc != H_Success) {
+		if(lpar_rc != H_SUCCESS) {
 			pool->free_map[free_index] = index;
 			pool->skbuff[index] = NULL;
 			pool->consumer_index--;
@@ -373,7 +373,7 @@ static void ibmveth_rxq_recycle_buffer(struct ibmveth_adapter *adapter)
 
 	lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc);
 		    
-	if(lpar_rc != H_Success) {
+	if(lpar_rc != H_SUCCESS) {
 		ibmveth_debug_printk("h_add_logical_lan_buffer failed during recycle rc=%ld", lpar_rc);
 		ibmveth_remove_buffer_from_pool(adapter, adapter->rx_queue.queue_addr[adapter->rx_queue.index].correlator);
 	}
@@ -511,7 +511,7 @@ static int ibmveth_open(struct net_device *netdev)
 					 adapter->filter_list_dma,
 					 mac_address);
 
-	if(lpar_rc != H_Success) {
+	if(lpar_rc != H_SUCCESS) {
 		ibmveth_error_printk("h_register_logical_lan failed with %ld\n", lpar_rc);
 		ibmveth_error_printk("buffer TCE:0x%lx filter TCE:0x%lx rxq desc:0x%lx MAC:0x%lx\n",
 				     adapter->buffer_list_dma,
@@ -527,7 +527,7 @@ static int ibmveth_open(struct net_device *netdev)
 		ibmveth_error_printk("unable to request irq 0x%x, rc %d\n", netdev->irq, rc);
 		do {
 			rc = h_free_logical_lan(adapter->vdev->unit_address);
-		} while (H_isLongBusy(rc) || (rc == H_Busy));
+		} while (H_IS_LONG_BUSY(rc) || (rc == H_BUSY));
 
 		ibmveth_cleanup(adapter);
 		return rc;
@@ -556,9 +556,9 @@ static int ibmveth_close(struct net_device *netdev)
 
 	do {
 		lpar_rc = h_free_logical_lan(adapter->vdev->unit_address);
-	} while (H_isLongBusy(lpar_rc) || (lpar_rc == H_Busy));
+	} while (H_IS_LONG_BUSY(lpar_rc) || (lpar_rc == H_BUSY));
 
-	if(lpar_rc != H_Success)
+	if(lpar_rc != H_SUCCESS)
 	{
 		ibmveth_error_printk("h_free_logical_lan failed with %lx, continuing with close\n",
 				     lpar_rc);
@@ -693,9 +693,9 @@ static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev)
 					     desc[4].desc,
 					     desc[5].desc,
 					     correlator);
-	} while ((lpar_rc == H_Busy) && (retry_count--));
+	} while ((lpar_rc == H_BUSY) && (retry_count--));
     
-	if(lpar_rc != H_Success && lpar_rc != H_Dropped) {
+	if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) {
 		int i;
 		ibmveth_error_printk("tx: h_send_logical_lan failed with rc=%ld\n", lpar_rc);
 		for(i = 0; i < 6; i++) {
@@ -786,14 +786,14 @@ static int ibmveth_poll(struct net_device *netdev, int *budget)
 	/* we think we are done - reenable interrupts, then check once more to make sure we are done */
 	lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_ENABLE);
 
-	ibmveth_assert(lpar_rc == H_Success);
+	ibmveth_assert(lpar_rc == H_SUCCESS);
 
 	netif_rx_complete(netdev);
 
 	if(ibmveth_rxq_pending_buffer(adapter) && netif_rx_reschedule(netdev, frames_processed))
 	{
 		lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE);
-		ibmveth_assert(lpar_rc == H_Success);
+		ibmveth_assert(lpar_rc == H_SUCCESS);
 		more_work = 1;
 		goto restart_poll;
 	}
@@ -813,7 +813,7 @@ static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance, struct pt_regs
 
 	if(netif_rx_schedule_prep(netdev)) {
 		lpar_rc = h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE);
-		ibmveth_assert(lpar_rc == H_Success);
+		ibmveth_assert(lpar_rc == H_SUCCESS);
 		__netif_rx_schedule(netdev);
 	}
 	return IRQ_HANDLED;
@@ -835,7 +835,7 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 					   IbmVethMcastEnableRecv |
 					   IbmVethMcastDisableFiltering,
 					   0);
-		if(lpar_rc != H_Success) {
+		if(lpar_rc != H_SUCCESS) {
 			ibmveth_error_printk("h_multicast_ctrl rc=%ld when entering promisc mode\n", lpar_rc);
 		}
 	} else {
@@ -847,7 +847,7 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 					   IbmVethMcastDisableFiltering |
 					   IbmVethMcastClearFilterTable,
 					   0);
-		if(lpar_rc != H_Success) {
+		if(lpar_rc != H_SUCCESS) {
 			ibmveth_error_printk("h_multicast_ctrl rc=%ld when attempting to clear filter table\n", lpar_rc);
 		}
 		/* add the addresses to the filter table */
@@ -858,7 +858,7 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 			lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address,
 						   IbmVethMcastAddFilter,
 						   mcast_addr);
-			if(lpar_rc != H_Success) {
+			if(lpar_rc != H_SUCCESS) {
 				ibmveth_error_printk("h_multicast_ctrl rc=%ld when adding an entry to the filter table\n", lpar_rc);
 			}
 		}
@@ -867,7 +867,7 @@ static void ibmveth_set_multicast_list(struct net_device *netdev)
 		lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address,
 					   IbmVethMcastEnableFiltering,
 					   0);
-		if(lpar_rc != H_Success) {
+		if(lpar_rc != H_SUCCESS) {
 			ibmveth_error_printk("h_multicast_ctrl rc=%ld when enabling filtering\n", lpar_rc);
 		}
 	}
diff --git a/drivers/scsi/ibmvscsi/rpa_vscsi.c b/drivers/scsi/ibmvscsi/rpa_vscsi.c
index f47dd87c05e7..892e8ed63091 100644
--- a/drivers/scsi/ibmvscsi/rpa_vscsi.c
+++ b/drivers/scsi/ibmvscsi/rpa_vscsi.c
@@ -80,7 +80,7 @@ void ibmvscsi_release_crq_queue(struct crq_queue *queue,
 	tasklet_kill(&hostdata->srp_task);
 	do {
 		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_Busy) || (H_isLongBusy(rc)));
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
 	dma_unmap_single(hostdata->dev,
 			 queue->msg_token,
 			 queue->size * sizeof(*queue->msgs), DMA_BIDIRECTIONAL);
@@ -230,7 +230,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
 	rc = plpar_hcall_norets(H_REG_CRQ,
 				vdev->unit_address,
 				queue->msg_token, PAGE_SIZE);
-	if (rc == H_Resource) 
+	if (rc == H_RESOURCE)
 		/* maybe kexecing and resource is busy. try a reset */
 		rc = ibmvscsi_reset_crq_queue(queue,
 					      hostdata);
@@ -269,7 +269,7 @@ int ibmvscsi_init_crq_queue(struct crq_queue *queue,
       req_irq_failed:
 	do {
 		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_Busy) || (H_isLongBusy(rc)));
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
       reg_crq_failed:
 	dma_unmap_single(hostdata->dev,
 			 queue->msg_token,
@@ -295,7 +295,7 @@ int ibmvscsi_reenable_crq_queue(struct crq_queue *queue,
 	/* Re-enable the CRQ */
 	do {
 		rc = plpar_hcall_norets(H_ENABLE_CRQ, vdev->unit_address);
-	} while ((rc == H_InProgress) || (rc == H_Busy) || (H_isLongBusy(rc)));
+	} while ((rc == H_IN_PROGRESS) || (rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
 
 	if (rc)
 		printk(KERN_ERR "ibmvscsi: Error %d enabling adapter\n", rc);
@@ -317,7 +317,7 @@ int ibmvscsi_reset_crq_queue(struct crq_queue *queue,
 	/* Close the CRQ */
 	do {
 		rc = plpar_hcall_norets(H_FREE_CRQ, vdev->unit_address);
-	} while ((rc == H_Busy) || (H_isLongBusy(rc)));
+	} while ((rc == H_BUSY) || (H_IS_LONG_BUSY(rc)));
 
 	/* Clean out the queue */
 	memset(queue->msgs, 0x00, PAGE_SIZE);
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index b72c04f3f551..029afaef1e66 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -4,47 +4,54 @@
 
 #define HVSC			.long 0x44000022
 
-#define H_Success	0
-#define H_Busy		1	/* Hardware busy -- retry later */
-#define H_Closed	2	/* Resource closed */
-#define H_Constrained	4	/* Resource request constrained to max allowed */
-#define H_InProgress   14	/* Kind of like busy */
-#define H_Pending      17	/* returned from H_POLL_PENDING */
-#define H_Continue     18	/* Returned from H_Join on success */
-#define H_LongBusyStartRange   9900  /* Start of long busy range */
-#define H_LongBusyOrder1msec   9900  /* Long busy, hint that 1msec is a good time to retry */
-#define H_LongBusyOrder10msec  9901  /* Long busy, hint that 10msec is a good time to retry */
-#define H_LongBusyOrder100msec 9902  /* Long busy, hint that 100msec is a good time to retry */
-#define H_LongBusyOrder1sec    9903  /* Long busy, hint that 1sec is a good time to retry */
-#define H_LongBusyOrder10sec   9904  /* Long busy, hint that 10sec is a good time to retry */
-#define H_LongBusyOrder100sec  9905  /* Long busy, hint that 100sec is a good time to retry */
-#define H_LongBusyEndRange     9905  /* End of long busy range */
-#define H_Hardware	-1	/* Hardware error */
-#define H_Function	-2	/* Function not supported */
-#define H_Privilege	-3	/* Caller not privileged */
-#define H_Parameter	-4	/* Parameter invalid, out-of-range or conflicting */
-#define H_Bad_Mode	-5	/* Illegal msr value */
-#define H_PTEG_Full	-6	/* PTEG is full */
-#define H_Not_Found	-7	/* PTE was not found" */
-#define H_Reserved_DABR	-8	/* DABR address is reserved by the hypervisor on this processor" */
-#define H_NoMem                 -9
-#define H_Authority            -10
-#define H_Permission           -11
-#define H_Dropped              -12
-#define H_SourceParm           -13
-#define H_DestParm             -14
-#define H_RemoteParm           -15
-#define H_Resource             -16
+#define H_SUCCESS	0
+#define H_BUSY		1	/* Hardware busy -- retry later */
+#define H_CLOSED	2	/* Resource closed */
+#define H_CONSTRAINED	4	/* Resource request constrained to max allowed */
+#define H_IN_PROGRESS	14	/* Kind of like busy */
+#define H_PENDING	17	/* returned from H_POLL_PENDING */
+#define H_CONTINUE	18	/* Returned from H_Join on success */
+#define H_LONG_BUSY_START_RANGE		9900  /* Start of long busy range */
+#define H_LONG_BUSY_ORDER_1_MSEC	9900  /* Long busy, hint that 1msec \
+						 is a good time to retry */
+#define H_LONG_BUSY_ORDER_10_MSEC	9901  /* Long busy, hint that 10msec \
+						 is a good time to retry */
+#define H_LONG_BUSY_ORDER_100_MSEC 	9902  /* Long busy, hint that 100msec \
+						 is a good time to retry */
+#define H_LONG_BUSY_ORDER_1_SEC		9903  /* Long busy, hint that 1sec \
+						 is a good time to retry */
+#define H_LONG_BUSY_ORDER_10_SEC	9904  /* Long busy, hint that 10sec \
+						 is a good time to retry */
+#define H_LONG_BUSY_ORDER_100_SEC	9905  /* Long busy, hint that 100sec \
+						 is a good time to retry */
+#define H_LONG_BUSY_END_RANGE		9905  /* End of long busy range */
+#define H_HARDWARE	-1	/* Hardware error */
+#define H_FUNCTION	-2	/* Function not supported */
+#define H_PRIVILEGE	-3	/* Caller not privileged */
+#define H_PARAMETER	-4	/* Parameter invalid, out-of-range or conflicting */
+#define H_BAD_MODE	-5	/* Illegal msr value */
+#define H_PTEG_FULL	-6	/* PTEG is full */
+#define H_NOT_FOUND	-7	/* PTE was not found" */
+#define H_RESERVED_DABR	-8	/* DABR address is reserved by the hypervisor on this processor" */
+#define H_NO_MEM	-9
+#define H_AUTHORITY	-10
+#define H_PERMISSION	-11
+#define H_DROPPED	-12
+#define H_SOURCE_PARM	-13
+#define H_DEST_PARM	-14
+#define H_REMOTE_PARM	-15
+#define H_RESOURCE	-16
 
 /* Long Busy is a condition that can be returned by the firmware
  * when a call cannot be completed now, but the identical call
  * should be retried later.  This prevents calls blocking in the
- * firmware for long periods of time. Annoyingly the firmware can return
+ * firmware for long periods of time.  Annoyingly the firmware can return
  * a range of return codes, hinting at how long we should wait before
  * retrying.  If you don't care for the hint, the macro below is a good
  * way to check for the long_busy return codes
  */
-#define H_isLongBusy(x)  ((x >= H_LongBusyStartRange) && (x <= H_LongBusyEndRange))
+#define H_IS_LONG_BUSY(x)  ((x >= H_LONG_BUSY_START_RANGE) \
+			     && (x <= H_LONG_BUSY_END_RANGE))
 
 /* Flags */
 #define H_LARGE_PAGE		(1UL<<(63-16))
@@ -99,25 +106,25 @@
 #define H_PERFMON		0x7c
 #define H_MIGRATE_DMA		0x78
 #define H_REGISTER_VPA		0xDC
-#define H_CEDE		        0xE0
+#define H_CEDE			0xE0
 #define H_CONFER		0xE4
-#define H_PROD		        0xE8
+#define H_PROD			0xE8
 #define H_GET_PPP		0xEC
 #define H_SET_PPP		0xF0
 #define H_PURR			0xF4
-#define H_PIC		        0xF8
+#define H_PIC			0xF8
 #define H_REG_CRQ		0xFC
 #define H_FREE_CRQ		0x100
 #define H_VIO_SIGNAL		0x104
 #define H_SEND_CRQ		0x108
-#define H_COPY_RDMA             0x110
+#define H_COPY_RDMA		0x110
 #define H_SET_XDABR		0x134
 #define H_STUFF_TCE		0x138
 #define H_PUT_TCE_INDIRECT	0x13C
 #define H_VTERM_PARTNER_INFO	0x150
 #define H_REGISTER_VTERM	0x154
 #define H_FREE_VTERM		0x158
-#define H_POLL_PENDING	        0x1D8
+#define H_POLL_PENDING		0x1D8
 #define H_JOIN			0x298
 #define H_ENABLE_CRQ		0x2B0
 
@@ -152,7 +159,7 @@ long plpar_hcall_norets(unsigned long opcode, ...);
  */
 long plpar_hcall_8arg_2ret(unsigned long opcode,
 			   unsigned long arg1,
-		  	   unsigned long arg2,
+			   unsigned long arg2,
 			   unsigned long arg3,
 			   unsigned long arg4,
 			   unsigned long arg5,
-- 
cgit v1.2.3


From b13a96cfb055fd4b9c61463f87534a6f406b174b Mon Sep 17 00:00:00 2001
From: Heiko J Schick <schihei@de.ibm.com>
Date: Thu, 30 Mar 2006 22:47:14 +0200
Subject: [PATCH] powerpc: Extends HCALL interface for InfiniBand usage

This extends the HCALL interface for InfiniBand usage. I've
made the patch against the linux-2.6 git tree and Segher's patch:
[PATCH] Change H_StudlyCaps to H_SHOUTING_CAPS

We moved this into the common powerpc code based on comments we
got after posting the first eHCA InfiniBand device driver patch.

Signed-off-by: Heiko j Schick <schickhj@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/hvCall.S | 100 ++++++++++++++++++++++++++++++++
 arch/powerpc/platforms/pseries/lpar.c   |   3 +-
 include/asm-powerpc/hvcall.h            | 100 ++++++++++++++++++++++++++++++++
 3 files changed, 202 insertions(+), 1 deletion(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index db7c19fe9297..c9ff547f9d25 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -127,3 +127,103 @@ _GLOBAL(plpar_hcall_4out)
 
 	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)
+
+	HVSC				/* invoke the hypervisor */
+
+	lwz	r0,8(r1)
+
+	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)
+
+	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)
+	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 */
+
+	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
+
+	lwz	r0,8(r1)
+	mtcrf	0xff,r0
+
+	blr				/* return r3 = status */
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index c72c0918b44b..634b7d06d3cc 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -54,7 +54,8 @@ EXPORT_SYMBOL(plpar_hcall);
 EXPORT_SYMBOL(plpar_hcall_4out);
 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);
 
 
diff --git a/include/asm-powerpc/hvcall.h b/include/asm-powerpc/hvcall.h
index 029afaef1e66..6cc7e1fb7bfd 100644
--- a/include/asm-powerpc/hvcall.h
+++ b/include/asm-powerpc/hvcall.h
@@ -7,8 +7,12 @@
 #define H_SUCCESS	0
 #define H_BUSY		1	/* Hardware busy -- retry later */
 #define H_CLOSED	2	/* Resource closed */
+#define H_NOT_AVAILABLE 3
 #define H_CONSTRAINED	4	/* Resource request constrained to max allowed */
+#define H_PARTIAL       5
 #define H_IN_PROGRESS	14	/* Kind of like busy */
+#define H_PAGE_REGISTERED 15
+#define H_PARTIAL_STORE   16
 #define H_PENDING	17	/* returned from H_POLL_PENDING */
 #define H_CONTINUE	18	/* Returned from H_Join on success */
 #define H_LONG_BUSY_START_RANGE		9900  /* Start of long busy range */
@@ -41,6 +45,36 @@
 #define H_DEST_PARM	-14
 #define H_REMOTE_PARM	-15
 #define H_RESOURCE	-16
+#define H_ADAPTER_PARM  -17
+#define H_RH_PARM       -18
+#define H_RCQ_PARM      -19
+#define H_SCQ_PARM      -20
+#define H_EQ_PARM       -21
+#define H_RT_PARM       -22
+#define H_ST_PARM       -23
+#define H_SIGT_PARM     -24
+#define H_TOKEN_PARM    -25
+#define H_MLENGTH_PARM  -27
+#define H_MEM_PARM      -28
+#define H_MEM_ACCESS_PARM -29
+#define H_ATTR_PARM     -30
+#define H_PORT_PARM     -31
+#define H_MCG_PARM      -32
+#define H_VL_PARM       -33
+#define H_TSIZE_PARM    -34
+#define H_TRACE_PARM    -35
+
+#define H_MASK_PARM     -37
+#define H_MCG_FULL      -38
+#define H_ALIAS_EXIST   -39
+#define H_P_COUNTER     -40
+#define H_TABLE_FULL    -41
+#define H_ALT_TABLE     -42
+#define H_MR_CONDITION  -43
+#define H_NOT_ENOUGH_RESOURCES -44
+#define H_R_STATE       -45
+#define H_RESCINDEND    -46
+
 
 /* Long Busy is a condition that can be returned by the firmware
  * when a call cannot be completed now, but the identical call
@@ -73,6 +107,9 @@
 #define H_DABRX_KERNEL		(1UL<<(63-62))
 #define H_DABRX_USER		(1UL<<(63-63))
 
+/* Each control block has to be on a 4K bondary */
+#define H_CB_ALIGNMENT          4096
+
 /* pSeries hypervisor opcodes */
 #define H_REMOVE		0x04
 #define H_ENTER			0x08
@@ -124,6 +161,33 @@
 #define H_VTERM_PARTNER_INFO	0x150
 #define H_REGISTER_VTERM	0x154
 #define H_FREE_VTERM		0x158
+#define H_RESET_EVENTS          0x15C
+#define H_ALLOC_RESOURCE        0x160
+#define H_FREE_RESOURCE         0x164
+#define H_MODIFY_QP             0x168
+#define H_QUERY_QP              0x16C
+#define H_REREGISTER_PMR        0x170
+#define H_REGISTER_SMR          0x174
+#define H_QUERY_MR              0x178
+#define H_QUERY_MW              0x17C
+#define H_QUERY_HCA             0x180
+#define H_QUERY_PORT            0x184
+#define H_MODIFY_PORT           0x188
+#define H_DEFINE_AQP1           0x18C
+#define H_GET_TRACE_BUFFER      0x190
+#define H_DEFINE_AQP0           0x194
+#define H_RESIZE_MR             0x198
+#define H_ATTACH_MCQP           0x19C
+#define H_DETACH_MCQP           0x1A0
+#define H_CREATE_RPT            0x1A4
+#define H_REMOVE_RPT            0x1A8
+#define H_REGISTER_RPAGES       0x1AC
+#define H_DISABLE_AND_GETC      0x1B0
+#define H_ERROR_DATA            0x1B4
+#define H_GET_HCA_INFO          0x1B8
+#define H_GET_PERF_COUNT        0x1BC
+#define H_MANAGE_TRACE          0x1C0
+#define H_QUERY_INT_STATE       0x1E4
 #define H_POLL_PENDING		0x1D8
 #define H_JOIN			0x298
 #define H_ENABLE_CRQ		0x2B0
@@ -183,6 +247,42 @@ long plpar_hcall_4out(unsigned long opcode,
 		      unsigned long *out3,
 		      unsigned long *out4);
 
+long plpar_hcall_7arg_7ret(unsigned long opcode,
+			   unsigned long arg1,
+			   unsigned long arg2,
+			   unsigned long arg3,
+			   unsigned long arg4,
+			   unsigned long arg5,
+			   unsigned long arg6,
+			   unsigned long arg7,
+			   unsigned long *out1,
+			   unsigned long *out2,
+			   unsigned long *out3,
+			   unsigned long *out4,
+			   unsigned long *out5,
+			   unsigned long *out6,
+			   unsigned long *out7);
+
+long plpar_hcall_9arg_9ret(unsigned long opcode,
+			   unsigned long arg1,
+			   unsigned long arg2,
+			   unsigned long arg3,
+			   unsigned long arg4,
+			   unsigned long arg5,
+			   unsigned long arg6,
+			   unsigned long arg7,
+			   unsigned long arg8,
+			   unsigned long arg9,
+			   unsigned long *out1,
+			   unsigned long *out2,
+			   unsigned long *out3,
+			   unsigned long *out4,
+			   unsigned long *out5,
+			   unsigned long *out6,
+			   unsigned long *out7,
+			   unsigned long *out8,
+			   unsigned long *out9);
+
 #endif /* __ASSEMBLY__ */
 #endif /* __KERNEL__ */
 #endif /* _ASM_POWERPC_HVCALL_H */
-- 
cgit v1.2.3


From a219be2cf48fc77e73936d07187a5f8d1bca2511 Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Thu, 30 Mar 2006 15:27:33 -0600
Subject: [PATCH] powerpc/pseries: fix device name printing, again.

The recent patch to print device names in EEH reset messages
was lacking ... this patch works better.

Signed-off-by: Linas Vepstas <linas@linas.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh_driver.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/eeh_driver.c b/arch/powerpc/platforms/pseries/eeh_driver.c
index 0c6b7d7ce9e8..1fba695e32e8 100644
--- a/arch/powerpc/platforms/pseries/eeh_driver.c
+++ b/arch/powerpc/platforms/pseries/eeh_driver.c
@@ -293,9 +293,10 @@ void handle_eeh_events (struct eeh_event *event)
 	frozen_pdn = PCI_DN(frozen_dn);
 	frozen_pdn->eeh_freeze_count++;
 
-	pci_str = pci_name (frozen_pdn->pcidev);
-	drv_str = pcid_name (frozen_pdn->pcidev);
-	if (!pci_str) {
+	if (frozen_pdn->pcidev) {
+		pci_str = pci_name (frozen_pdn->pcidev);
+		drv_str = pcid_name (frozen_pdn->pcidev);
+	} else {
 		pci_str = pci_name (event->dev);
 		drv_str = pcid_name (event->dev);
 	}
-- 
cgit v1.2.3


From 794e085e56a67921eea80bcaeeac38d1517369be Mon Sep 17 00:00:00 2001
From: Nathan Fontenot <nfont@austin.ibm.com>
Date: Fri, 31 Mar 2006 12:04:52 -0600
Subject: [PATCH] powerpc/pseries: EEH Cleanup

This patch removes unnecessary exports, marks functions as static when
possible, and simplifies some list-related code.

Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com>
Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh.c | 62 +++++++++++++++++-------------------
 include/asm-powerpc/eeh.h            | 20 ------------
 2 files changed, 30 insertions(+), 52 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 9b2b1cb117b3..780fb27a0099 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -865,7 +865,7 @@ void __init eeh_init(void)
  * on the CEC architecture, type of the device, on earlier boot
  * command-line arguments & etc.
  */
-void eeh_add_device_early(struct device_node *dn)
+static void eeh_add_device_early(struct device_node *dn)
 {
 	struct pci_controller *phb;
 	struct eeh_early_enable_info info;
@@ -882,7 +882,6 @@ void eeh_add_device_early(struct device_node *dn)
 	info.buid_lo = BUID_LO(phb->buid);
 	early_enable_eeh(dn, &info);
 }
-EXPORT_SYMBOL_GPL(eeh_add_device_early);
 
 void eeh_add_device_tree_early(struct device_node *dn)
 {
@@ -893,20 +892,6 @@ void eeh_add_device_tree_early(struct device_node *dn)
 }
 EXPORT_SYMBOL_GPL(eeh_add_device_tree_early);
 
-void eeh_add_device_tree_late(struct pci_bus *bus)
-{
-	struct pci_dev *dev;
-
-	list_for_each_entry(dev, &bus->devices, bus_list) {
- 		eeh_add_device_late(dev);
- 		if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
- 			struct pci_bus *subbus = dev->subordinate;
- 			if (subbus)
- 				eeh_add_device_tree_late(subbus);
- 		}
-	}
-}
-
 /**
  * eeh_add_device_late - perform EEH initialization for the indicated pci device
  * @dev: pci device for which to set up EEH
@@ -914,7 +899,7 @@ void eeh_add_device_tree_late(struct pci_bus *bus)
  * This routine must be used to complete EEH initialization for PCI
  * devices that were added after system boot (e.g. hotplug, dlpar).
  */
-void eeh_add_device_late(struct pci_dev *dev)
+static void eeh_add_device_late(struct pci_dev *dev)
 {
 	struct device_node *dn;
 	struct pci_dn *pdn;
@@ -933,16 +918,33 @@ void eeh_add_device_late(struct pci_dev *dev)
 
 	pci_addr_cache_insert_device (dev);
 }
-EXPORT_SYMBOL_GPL(eeh_add_device_late);
+
+void eeh_add_device_tree_late(struct pci_bus *bus)
+{
+	struct pci_dev *dev;
+
+	list_for_each_entry(dev, &bus->devices, bus_list) {
+ 		eeh_add_device_late(dev);
+ 		if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+ 			struct pci_bus *subbus = dev->subordinate;
+ 			if (subbus)
+ 				eeh_add_device_tree_late(subbus);
+ 		}
+	}
+}
+EXPORT_SYMBOL_GPL(eeh_add_device_tree_late);
 
 /**
  * eeh_remove_device - undo EEH setup for the indicated pci device
  * @dev: pci device to be removed
  *
- * This routine should be when a device is removed from a running
- * system (e.g. by hotplug or dlpar).
+ * This routine should be called when a device is removed from
+ * a running system (e.g. by hotplug or dlpar).  It unregisters
+ * the PCI device from the EEH subsystem.  I/O errors affecting
+ * this device will no longer be detected after this call; thus,
+ * i/o errors affecting this slot may leave this device unusable.
  */
-void eeh_remove_device(struct pci_dev *dev)
+static void eeh_remove_device(struct pci_dev *dev)
 {
 	struct device_node *dn;
 	if (!dev || !eeh_subsystem_enabled)
@@ -958,21 +960,17 @@ void eeh_remove_device(struct pci_dev *dev)
 	PCI_DN(dn)->pcidev = NULL;
 	pci_dev_put (dev);
 }
-EXPORT_SYMBOL_GPL(eeh_remove_device);
 
 void eeh_remove_bus_device(struct pci_dev *dev)
 {
+	struct pci_bus *bus = dev->subordinate;
+	struct pci_dev *child, *tmp;
+
 	eeh_remove_device(dev);
-	if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
-		struct pci_bus *bus = dev->subordinate;
-		struct list_head *ln;
-		if (!bus)
-			return; 
-		for (ln = bus->devices.next; ln != &bus->devices; ln = ln->next) {
-			struct pci_dev *pdev = pci_dev_b(ln);
-			if (pdev)
-				eeh_remove_bus_device(pdev);
-		}
+
+	if (bus && dev->hdr_type == PCI_HEADER_TYPE_BRIDGE) {
+		list_for_each_entry_safe(child, tmp, &bus->devices, bus_list)
+			 eeh_remove_bus_device(child);
 	}
 }
 EXPORT_SYMBOL_GPL(eeh_remove_bus_device);
diff --git a/include/asm-powerpc/eeh.h b/include/asm-powerpc/eeh.h
index 5207758a6dd9..868c7139dbff 100644
--- a/include/asm-powerpc/eeh.h
+++ b/include/asm-powerpc/eeh.h
@@ -60,23 +60,9 @@ void __init pci_addr_cache_build(void);
  * device (including config space i/o).  Call eeh_add_device_late
  * to finish the eeh setup for this device.
  */
-void eeh_add_device_early(struct device_node *);
-void eeh_add_device_late(struct pci_dev *dev);
 void eeh_add_device_tree_early(struct device_node *);
 void eeh_add_device_tree_late(struct pci_bus *);
 
-/**
- * eeh_remove_device - undo EEH setup for the indicated pci device
- * @dev: pci device to be removed
- *
- * This routine should be called when a device is removed from
- * a running system (e.g. by hotplug or dlpar).  It unregisters
- * the PCI device from the EEH subsystem.  I/O errors affecting
- * this device will no longer be detected after this call; thus,
- * i/o errors affecting this slot may leave this device unusable.
- */
-void eeh_remove_device(struct pci_dev *);
-
 /**
  * eeh_remove_device_recursive - undo EEH for device & children.
  * @dev: pci device to be removed
@@ -116,12 +102,6 @@ static inline int eeh_dn_check_failure(struct device_node *dn, struct pci_dev *d
 
 static inline void pci_addr_cache_build(void) { }
 
-static inline void eeh_add_device_early(struct device_node *dn) { }
-
-static inline void eeh_add_device_late(struct pci_dev *dev) { }
-
-static inline void eeh_remove_device(struct pci_dev *dev) { }
-
 static inline void eeh_add_device_tree_early(struct device_node *dn) { }
 
 static inline void eeh_add_device_tree_late(struct pci_bus *bus) { }
-- 
cgit v1.2.3


From cfff5b23bad2b7a4754f7c126a174a5867dfcca5 Mon Sep 17 00:00:00 2001
From: Dave Jones <davej@redhat.com>
Date: Fri, 31 Mar 2006 23:53:09 -0500
Subject: [PATCH] powerpc/cell: compile fixes

Missing include for __NR_syscalls, and missing sys_splice() that
causes build-time failure due to compile-time bounds check on
spu_syscall_table.

Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/cell/spu_callbacks.c | 1 +
 arch/powerpc/platforms/cell/spufs/run.c     | 1 +
 2 files changed, 2 insertions(+)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index 3a4245c926ad..6594bec73882 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -316,6 +316,7 @@ void *spu_syscall_table[] = {
 	[__NR_pselect6]			sys_ni_syscall, /* sys_pselect */
 	[__NR_ppoll]			sys_ni_syscall, /* sys_ppoll */
 	[__NR_unshare]			sys_unshare,
+	[__NR_splice]			sys_splice,
 };
 
 long spu_sys_callback(struct spu_syscall_block *s)
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index c04e078c0fe5..483c8b76232c 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -2,6 +2,7 @@
 #include <linux/ptrace.h>
 
 #include <asm/spu.h>
+#include <asm/unistd.h>
 
 #include "spufs.h"
 
-- 
cgit v1.2.3


From 7d01c880856bae31502095bc68784c1518a680cb Mon Sep 17 00:00:00 2001
From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 4 Apr 2006 14:49:48 +1000
Subject: powerpc: iSeries has only 256 IRQs

The iSeries Hypervisor only allows us to specify IRQ numbers up to 255 (it
has a u8 field to pass it in).  This patch allows platforms to specify a
maximum to the virtual IRQ numbers we will use and has iSeries set that
to 255.  If not set, the maximum is NR_IRQS - 1 (as before).

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
 arch/powerpc/kernel/irq.c              | 36 +++++++++++++++++++++-------------
 arch/powerpc/platforms/iseries/setup.c |  7 +++++++
 include/asm-powerpc/irq.h              |  7 +++++++
 3 files changed, 36 insertions(+), 14 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index bb5c9501234c..57d560c68897 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -272,18 +272,26 @@ unsigned int virt_irq_to_real_map[NR_IRQS];
  * Don't use virtual irqs 0, 1, 2 for devices.
  * The pcnet32 driver considers interrupt numbers < 2 to be invalid,
  * and 2 is the XICS IPI interrupt.
- * We limit virtual irqs to 17 less than NR_IRQS so that when we
- * offset them by 16 (to reserve the first 16 for ISA interrupts)
- * we don't end up with an interrupt number >= NR_IRQS.
+ * We limit virtual irqs to __irq_offet_value less than virt_irq_max so
+ * that when we offset them we don't end up with an interrupt
+ * number >= virt_irq_max.
  */
 #define MIN_VIRT_IRQ	3
-#define MAX_VIRT_IRQ	(NR_IRQS - NUM_ISA_INTERRUPTS - 1)
-#define NR_VIRT_IRQS	(MAX_VIRT_IRQ - MIN_VIRT_IRQ + 1)
+
+unsigned int virt_irq_max;
+static unsigned int max_virt_irq;
+static unsigned int nr_virt_irqs;
 
 void
 virt_irq_init(void)
 {
 	int i;
+
+	if ((virt_irq_max == 0) || (virt_irq_max > (NR_IRQS - 1)))
+		virt_irq_max = NR_IRQS - 1;
+	max_virt_irq = virt_irq_max - __irq_offset_value;
+	nr_virt_irqs = max_virt_irq - MIN_VIRT_IRQ + 1;
+
 	for (i = 0; i < NR_IRQS; i++)
 		virt_irq_to_real_map[i] = UNDEFINED_IRQ;
 }
@@ -308,17 +316,17 @@ int virt_irq_create_mapping(unsigned int real_irq)
 		return real_irq;
 	}
 
-	/* map to a number between MIN_VIRT_IRQ and MAX_VIRT_IRQ */
+	/* map to a number between MIN_VIRT_IRQ and max_virt_irq */
 	virq = real_irq;
-	if (virq > MAX_VIRT_IRQ)
-		virq = (virq % NR_VIRT_IRQS) + MIN_VIRT_IRQ;
+	if (virq > max_virt_irq)
+		virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ;
 
 	/* search for this number or a free slot */
 	first_virq = virq;
 	while (virt_irq_to_real_map[virq] != UNDEFINED_IRQ) {
 		if (virt_irq_to_real_map[virq] == real_irq)
 			return virq;
-		if (++virq > MAX_VIRT_IRQ)
+		if (++virq > max_virt_irq)
 			virq = MIN_VIRT_IRQ;
 		if (virq == first_virq)
 			goto nospace;	/* oops, no free slots */
@@ -330,8 +338,8 @@ int virt_irq_create_mapping(unsigned int real_irq)
  nospace:
 	if (!warned) {
 		printk(KERN_CRIT "Interrupt table is full\n");
-		printk(KERN_CRIT "Increase NR_IRQS (currently %d) "
-		       "in your kernel sources and rebuild.\n", NR_IRQS);
+		printk(KERN_CRIT "Increase virt_irq_max (currently %d) "
+		       "in your kernel sources and rebuild.\n", virt_irq_max);
 		warned = 1;
 	}
 	return NO_IRQ;
@@ -349,8 +357,8 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
 	virq = real_irq;
 
-	if (virq > MAX_VIRT_IRQ)
-		virq = (virq % NR_VIRT_IRQS) + MIN_VIRT_IRQ;
+	if (virq > max_virt_irq)
+		virq = (virq % nr_virt_irqs) + MIN_VIRT_IRQ;
 
 	first_virq = virq;
 
@@ -360,7 +368,7 @@ unsigned int real_irq_to_virt_slowpath(unsigned int real_irq)
 
 		virq++;
 
-		if (virq >= MAX_VIRT_IRQ)
+		if (virq >= max_virt_irq)
 			virq = 0;
 
 	} while (first_virq != virq);
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 6ce8a404ba6b..a6fd9bedb074 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -54,6 +54,7 @@
 #include <asm/iseries/hv_lp_event.h>
 #include <asm/iseries/lpar_map.h>
 #include <asm/udbg.h>
+#include <asm/irq.h>
 
 #include "naca.h"
 #include "setup.h"
@@ -684,6 +685,12 @@ static int __init iseries_probe(void)
 	powerpc_firmware_features |= FW_FEATURE_ISERIES;
 	powerpc_firmware_features |= FW_FEATURE_LPAR;
 
+	/*
+	 * The Hypervisor only allows us up to 256 interrupt
+	 * sources (the irq number is passed in a u8).
+	 */
+	virt_irq_max = 255;
+
 	return 1;
 }
 
diff --git a/include/asm-powerpc/irq.h b/include/asm-powerpc/irq.h
index 51f87d9993b6..7bc6d73b2823 100644
--- a/include/asm-powerpc/irq.h
+++ b/include/asm-powerpc/irq.h
@@ -54,6 +54,13 @@
  */
 extern unsigned int virt_irq_to_real_map[NR_IRQS];
 
+/* The maximum virtual IRQ number that we support.  This
+ * can be set by the platform and will be reduced by the
+ * value of __irq_offset_value.  It defaults to and is
+ * capped by (NR_IRQS - 1).
+ */
+extern unsigned int virt_irq_max;
+
 /* Create a mapping for a real_irq if it doesn't already exist.
  * Return the virtual irq as a convenience.
  */
-- 
cgit v1.2.3


From b86756ae76dc5e7ecff3ca52a5842155e6d457de Mon Sep 17 00:00:00 2001
From: Paul Mackerras <paulus@samba.org>
Date: Mon, 3 Apr 2006 16:37:23 +1000
Subject: powerpc: Fix CHRP booting - needs a define_machine call

The patch removing _machine and converting platforms over to use
define_machine wasn't complete as far as CHRP was concerned.  This
adds the define_machine call for CHRP and gets it booting again.

Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/chrp/chrp.h  |  1 +
 arch/powerpc/platforms/chrp/pci.c   |  6 +++--
 arch/powerpc/platforms/chrp/setup.c | 44 +++++++++++++++++--------------------
 3 files changed, 25 insertions(+), 26 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/chrp/chrp.h b/arch/powerpc/platforms/chrp/chrp.h
index 63f0aee4c158..996c28744e96 100644
--- a/arch/powerpc/platforms/chrp/chrp.h
+++ b/arch/powerpc/platforms/chrp/chrp.h
@@ -9,3 +9,4 @@ extern long chrp_time_init(void);
 
 extern void chrp_find_bridges(void);
 extern void chrp_event_scan(unsigned long);
+extern void chrp_pcibios_fixup(void);
diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 8ef279ad36ad..ac224876ce59 100644
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -23,6 +23,8 @@
 #include <asm/grackle.h>
 #include <asm/rtas.h>
 
+#include "chrp.h"
+
 /* LongTrail */
 void __iomem *gg2_pci_config_base;
 
@@ -314,6 +316,6 @@ chrp_find_bridges(void)
 	}
 
 	/* Do not fixup interrupts from OF tree on pegasos */
-	if (is_pegasos == 0)
-		ppc_md.pcibios_fixup = chrp_pcibios_fixup;
+	if (is_pegasos)
+		ppc_md.pcibios_fixup = NULL;
 }
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 23a201718704..18d89f38796b 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -440,8 +440,6 @@ void __init chrp_init_IRQ(void)
 
 	if (_chrp_type == _CHRP_Pegasos)
 		ppc_md.get_irq        = i8259_irq;
-	else
-		ppc_md.get_irq        = mpic_get_irq;
 
 #if defined(CONFIG_VT) && defined(CONFIG_INPUT_ADBHID) && defined(XMON)
 	/* see if there is a keyboard in the device tree
@@ -528,26 +526,24 @@ static int __init chrp_probe(void)
 	/* Assume we have an 8259... */
 	__irq_offset_value = NUM_ISA_INTERRUPTS;
 
-	ppc_md.setup_arch     = chrp_setup_arch;
-	ppc_md.show_cpuinfo   = chrp_show_cpuinfo;
-
-	ppc_md.init_IRQ       = chrp_init_IRQ;
-	ppc_md.init           = chrp_init2;
-
-	ppc_md.phys_mem_access_prot = pci_phys_mem_access_prot;
-
-	ppc_md.restart        = rtas_restart;
-	ppc_md.power_off      = rtas_power_off;
-	ppc_md.halt           = rtas_halt;
-
-	ppc_md.time_init      = chrp_time_init;
-	ppc_md.calibrate_decr = generic_calibrate_decr;
-
-	/* this may get overridden with rtas routines later... */
-	ppc_md.set_rtc_time   = chrp_set_rtc_time;
-	ppc_md.get_rtc_time   = chrp_get_rtc_time;
-
-#ifdef CONFIG_SMP
-	smp_ops = &chrp_smp_ops;
-#endif /* CONFIG_SMP */
+	return 1;
 }
+
+define_machine(chrp) {
+	.name			= "CHRP",
+	.probe			= chrp_probe,
+	.setup_arch		= chrp_setup_arch,
+	.init			= chrp_init2,
+	.show_cpuinfo		= chrp_show_cpuinfo,
+	.init_IRQ		= chrp_init_IRQ,
+	.get_irq		= mpic_get_irq,
+	.pcibios_fixup		= chrp_pcibios_fixup,
+	.restart		= rtas_restart,
+	.power_off		= rtas_power_off,
+	.halt			= rtas_halt,
+	.time_init		= chrp_time_init,
+	.set_rtc_time		= chrp_set_rtc_time,
+	.get_rtc_time		= chrp_get_rtc_time,
+	.calibrate_decr		= generic_calibrate_decr,
+	.phys_mem_access_prot	= pci_phys_mem_access_prot,
+};
-- 
cgit v1.2.3


From 49c28e4e40be73019481f3c13a5966e0cc8f5a9d Mon Sep 17 00:00:00 2001
From: Anton Blanchard <anton@samba.org>
Date: Sun, 2 Apr 2006 20:18:32 +1000
Subject: [PATCH] powerpc: Avoid __initcall warnings

Fix __initcall return in proc_rtas_init and rtas_init.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/rtas-proc.c        | 4 ++--
 arch/powerpc/platforms/pseries/rtasd.c | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 456286cf1d14..9c9ad1fa9cce 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -258,11 +258,11 @@ static int __init proc_rtas_init(void)
 	struct proc_dir_entry *entry;
 
 	if (!machine_is(pseries))
-		return 1;
+		return -ENODEV;
 
 	rtas_node = of_find_node_by_name(NULL, "rtas");
 	if (rtas_node == NULL)
-		return 1;
+		return -ENODEV;
 
 	entry = create_proc_entry("ppc64/rtas/progress", S_IRUGO|S_IWUSR, NULL);
 	if (entry)
diff --git a/arch/powerpc/platforms/pseries/rtasd.c b/arch/powerpc/platforms/pseries/rtasd.c
index fcc4d561a236..e0000ce769e5 100644
--- a/arch/powerpc/platforms/pseries/rtasd.c
+++ b/arch/powerpc/platforms/pseries/rtasd.c
@@ -488,7 +488,7 @@ static int __init rtas_init(void)
 	/* No RTAS */
 	if (rtas_token("event-scan") == RTAS_UNKNOWN_SERVICE) {
 		printk(KERN_INFO "rtasd: no event-scan on system\n");
-		return 1;
+		return -ENODEV;
 	}
 
 	entry = create_proc_entry("ppc64/rtas/error_log", S_IRUSR, NULL);
-- 
cgit v1.2.3


From b055a9e10fd05c7fdd87904a50c1f413aea10ec4 Mon Sep 17 00:00:00 2001
From: Linas Vepstas <linas@austin.ibm.com>
Date: Thu, 6 Apr 2006 15:41:41 -0500
Subject: [PATCH] powerpc/pseries: bugfix: balance calls to pci_device_put

Repeated calls to eeh_remove_device() can result in multiple
(and thus unbalanced) calls to pci_dev_put(). Make sure the
pci_device_put() is called only once (since there was only
one call to the matching pci_device_get()).

Signed-off-by: Linas Vepstas <linas@austin.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/pseries/eeh.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/pseries/eeh.c b/arch/powerpc/platforms/pseries/eeh.c
index 780fb27a0099..32eaddfa5470 100644
--- a/arch/powerpc/platforms/pseries/eeh.c
+++ b/arch/powerpc/platforms/pseries/eeh.c
@@ -957,8 +957,10 @@ static void eeh_remove_device(struct pci_dev *dev)
 	pci_addr_cache_remove_device(dev);
 
 	dn = pci_device_to_OF_node(dev);
-	PCI_DN(dn)->pcidev = NULL;
-	pci_dev_put (dev);
+	if (PCI_DN(dn)->pcidev) {
+		PCI_DN(dn)->pcidev = NULL;
+		pci_dev_put (dev);
+	}
 }
 
 void eeh_remove_bus_device(struct pci_dev *dev)
-- 
cgit v1.2.3


From 183b73ae7c9e4e19fa95d88e1778481899a65210 Mon Sep 17 00:00:00 2001
From: Jordi Caubet <jordi_caubet@es.ibm.com>
Date: Wed, 12 Apr 2006 17:44:27 +0200
Subject: [PATCH] spufs: fix context-switch decrementer code

We found that when the 'decrementer' is saved, the PPE saves the current
time 'csa->suspend_time'. When restoring the 'decrementer', (Step 34)
decrementer seems to be adjusted with the number of cycles th= at a spu
thread has not been running.

In that code it is missing a substract ('-') because 'delta_time' is
assigned a not substracted(see bellow).

Acked-by: Mark Nutter <mnutter@us.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/cell/spufs/switch.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/cell/spufs/switch.c b/arch/powerpc/platforms/cell/spufs/switch.c
index 97898d5d34e5..1726bfe38ee0 100644
--- a/arch/powerpc/platforms/cell/spufs/switch.c
+++ b/arch/powerpc/platforms/cell/spufs/switch.c
@@ -1297,7 +1297,7 @@ static inline void setup_decr(struct spu_state *csa, struct spu *spu)
 		cycles_t resume_time = get_cycles();
 		cycles_t delta_time = resume_time - csa->suspend_time;
 
-		csa->lscsa->decr.slot[0] = delta_time;
+		csa->lscsa->decr.slot[0] -= delta_time;
 	}
 }
 
-- 
cgit v1.2.3


From 60162e498e220d1f03bbee5bac0a9ddd6de60ae7 Mon Sep 17 00:00:00 2001
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Date: Tue, 18 Apr 2006 14:11:53 +1000
Subject: [PATCH] powermac: Fix i2c on keywest based chips

The new i2c implementation for PowerMac has a regression that causes the
hardware to go out of state when probing non-existent devices. While
fixing that, I also found & fixed a couple of other corner cases. This
fixes booting with a pbbuttons version that scans the i2c bus for an LMU
controller among others. Tested on a dual G5 with thermal control (which
has heavy i2c activity) with no problem so far.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/platforms/powermac/low_i2c.c | 78 ++++++++++++++-----------------
 1 file changed, 35 insertions(+), 43 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/powermac/low_i2c.c b/arch/powerpc/platforms/powermac/low_i2c.c
index e14f9ac55cf4..df2343e1956b 100644
--- a/arch/powerpc/platforms/powermac/low_i2c.c
+++ b/arch/powerpc/platforms/powermac/low_i2c.c
@@ -231,6 +231,14 @@ static u8 kw_i2c_wait_interrupt(struct pmac_i2c_host_kw *host)
 	return isr;
 }
 
+static void kw_i2c_do_stop(struct pmac_i2c_host_kw *host, int result)
+{
+	kw_write_reg(reg_control, KW_I2C_CTL_STOP);
+	host->state = state_stop;
+	host->result = result;
+}
+
+
 static void kw_i2c_handle_interrupt(struct pmac_i2c_host_kw *host, u8 isr)
 {
 	u8 ack;
@@ -246,42 +254,36 @@ static void kw_i2c_handle_interrupt(struct pmac_i2c_host_kw *host, u8 isr)
 	}
 
 	if (isr == 0) {
+		printk(KERN_WARNING "low_i2c: Timeout in i2c transfer"
+		       " on keywest !\n");
 		if (host->state != state_stop) {
-			DBG_LOW("KW: Timeout !\n");
-			host->result = -EIO;
-			goto stop;
-		}
-		if (host->state == state_stop) {
-			ack = kw_read_reg(reg_status);
-			if (ack & KW_I2C_STAT_BUSY)
-				kw_write_reg(reg_status, 0);
-			host->state = state_idle;
-			kw_write_reg(reg_ier, 0x00);
-			if (!host->polled)
-				complete(&host->complete);
+			kw_i2c_do_stop(host, -EIO);
+			return;
 		}
+		ack = kw_read_reg(reg_status);
+		if (ack & KW_I2C_STAT_BUSY)
+			kw_write_reg(reg_status, 0);
+		host->state = state_idle;
+		kw_write_reg(reg_ier, 0x00);
+		if (!host->polled)
+			complete(&host->complete);
 		return;
 	}
 
 	if (isr & KW_I2C_IRQ_ADDR) {
 		ack = kw_read_reg(reg_status);
 		if (host->state != state_addr) {
-			kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
 			WRONG_STATE("KW_I2C_IRQ_ADDR"); 
-			host->result = -EIO;
-			goto stop;
+			kw_i2c_do_stop(host, -EIO);
 		}
 		if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {
-			host->result = -ENODEV;
-			DBG_LOW("KW: NAK on address\n");
+			host->result = -ENXIO;
 			host->state = state_stop;
-			return;
+			DBG_LOW("KW: NAK on address\n");
 		} else {
-			if (host->len == 0) {
-				kw_write_reg(reg_isr, KW_I2C_IRQ_ADDR);
-				goto stop;
-			}
-			if (host->rw) {
+			if (host->len == 0)
+				kw_i2c_do_stop(host, 0);
+			else if (host->rw) {
 				host->state = state_read;
 				if (host->len > 1)
 					kw_write_reg(reg_control,
@@ -308,25 +310,19 @@ static void kw_i2c_handle_interrupt(struct pmac_i2c_host_kw *host, u8 isr)
 			ack = kw_read_reg(reg_status);
 			if ((ack & KW_I2C_STAT_LAST_AAK) == 0) {
 				DBG_LOW("KW: nack on data write\n");
-				host->result = -EIO;
-				goto stop;
+				host->result = -EFBIG;
+				host->state = state_stop;
 			} else if (host->len) {
 				kw_write_reg(reg_data, *(host->data++));
 				host->len--;
-			} else {
-				kw_write_reg(reg_control, KW_I2C_CTL_STOP);
-				host->state = state_stop;
-				host->result = 0;
-			}
-			kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
+			} else
+				kw_i2c_do_stop(host, 0);
 		} else {
-			kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
 			WRONG_STATE("KW_I2C_IRQ_DATA"); 
-			if (host->state != state_stop) {
-				host->result = -EIO;
-				goto stop;
-			}
+			if (host->state != state_stop)
+				kw_i2c_do_stop(host, -EIO);
 		}
+		kw_write_reg(reg_isr, KW_I2C_IRQ_DATA);
 	}
 
 	if (isr & KW_I2C_IRQ_STOP) {
@@ -340,14 +336,10 @@ static void kw_i2c_handle_interrupt(struct pmac_i2c_host_kw *host, u8 isr)
 			complete(&host->complete);
 	}
 
+	/* Below should only happen in manual mode which we don't use ... */
 	if (isr & KW_I2C_IRQ_START)
 		kw_write_reg(reg_isr, KW_I2C_IRQ_START);
 
-	return;
- stop:
-	kw_write_reg(reg_control, KW_I2C_CTL_STOP);	
-	host->state = state_stop;
-	return;
 }
 
 /* Interrupt handler */
@@ -544,11 +536,11 @@ static struct pmac_i2c_host_kw *__init kw_i2c_host_init(struct device_node *np)
 		return NULL;
 	}
 
-	/* Make sure IRA is disabled */
+	/* Make sure IRQ is disabled */
 	kw_write_reg(reg_ier, 0);
 
 	/* Request chip interrupt */
-	if (request_irq(host->irq, kw_i2c_irq, SA_SHIRQ, "keywest i2c", host))
+	if (request_irq(host->irq, kw_i2c_irq, 0, "keywest i2c", host))
 		host->irq = NO_IRQ;
 
 	printk(KERN_INFO "KeyWest i2c @0x%08x irq %d %s\n",
-- 
cgit v1.2.3


From 23b2527d5eae89841eb66b46e80ec91980493dda Mon Sep 17 00:00:00 2001
From: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Date: Tue, 18 Apr 2006 15:24:16 +0200
Subject: [PATCH] powerpc/cell: remove BUILD_BUG_ON and add sys_tee to
 spu_syscall_table

Every time a new syscall gets added, a BUILD_BUG_ON in
arch/powerpc/platforms/cell/spu_callbacks.c gets triggered.
Since the addition of a new syscall is rather harmless,
the error should just be removed.

While we're here, add sys_tee to the list and add a comment
to systbl.S to remind people that there is another list
on powerpc.

Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/kernel/systbl.S                | 5 +++++
 arch/powerpc/platforms/cell/spu_callbacks.c | 5 ++---
 2 files changed, 7 insertions(+), 3 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index a14c96403840..8d1522690501 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -324,3 +324,8 @@ COMPAT_SYS(ppoll)
 SYSCALL(unshare)
 SYSCALL(splice)
 SYSCALL(tee)
+
+/*
+ * please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c
+ * as well when appropriate.
+ */
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index 6594bec73882..deb3afb94484 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -317,17 +317,16 @@ void *spu_syscall_table[] = {
 	[__NR_ppoll]			sys_ni_syscall, /* sys_ppoll */
 	[__NR_unshare]			sys_unshare,
 	[__NR_splice]			sys_splice,
+	[__NR_tee]			sys_tee,
 };
 
 long spu_sys_callback(struct spu_syscall_block *s)
 {
 	long (*syscall)(u64 a1, u64 a2, u64 a3, u64 a4, u64 a5, u64 a6);
 
-	BUILD_BUG_ON(ARRAY_SIZE(spu_syscall_table) != __NR_syscalls);
-
 	syscall = spu_syscall_table[s->nr_ret];
 
-	if (s->nr_ret >= __NR_syscalls) {
+	if (s->nr_ret >= ARRAY_SIZE(spu_syscall_table)) {
 		pr_debug("%s: invalid syscall #%ld", __FUNCTION__, s->nr_ret);
 		return -ENOSYS;
 	}
-- 
cgit v1.2.3


From 912d35f86781e64d73be1ef358f703c08905ac37 Mon Sep 17 00:00:00 2001
From: Jens Axboe <axboe@suse.de>
Date: Wed, 26 Apr 2006 10:59:21 +0200
Subject: [PATCH] Add support for the sys_vmsplice syscall

sys_splice() moves data to/from pipes with a file input/output. sys_vmsplice()
moves data to a pipe, with the input being a user address range instead.

This uses an approach suggested by Linus, where we can hold partial ranges
inside the pages[] map. Hopefully this will be useful for network
receive support as well.

Signed-off-by: Jens Axboe <axboe@suse.de>
---
 arch/ia64/kernel/entry.S                    |   1 +
 arch/powerpc/kernel/systbl.S                |   1 +
 arch/powerpc/platforms/cell/spu_callbacks.c |   1 +
 fs/splice.c                                 | 292 ++++++++++++++++++++++++----
 include/asm-i386/unistd.h                   |   3 +-
 include/asm-ia64/unistd.h                   |   3 +-
 include/asm-powerpc/unistd.h                |   3 +-
 include/asm-x86_64/unistd.h                 |   4 +-
 include/linux/syscalls.h                    |   3 +
 9 files changed, 268 insertions(+), 43 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/ia64/kernel/entry.S b/arch/ia64/kernel/entry.S
index e30798811216..bcb80ca5cf40 100644
--- a/arch/ia64/kernel/entry.S
+++ b/arch/ia64/kernel/entry.S
@@ -1610,5 +1610,6 @@ sys_call_table:
 	data8 sys_get_robust_list
 	data8 sys_sync_file_range		// 1300
 	data8 sys_tee
+	data8 sys_vmsplice
 
 	.org sys_call_table + 8*NR_syscalls	// guard against failures to increase NR_syscalls
diff --git a/arch/powerpc/kernel/systbl.S b/arch/powerpc/kernel/systbl.S
index 8d1522690501..0b98eea73c5e 100644
--- a/arch/powerpc/kernel/systbl.S
+++ b/arch/powerpc/kernel/systbl.S
@@ -324,6 +324,7 @@ COMPAT_SYS(ppoll)
 SYSCALL(unshare)
 SYSCALL(splice)
 SYSCALL(tee)
+SYSCALL(vmsplice)
 
 /*
  * please add new calls to arch/powerpc/platforms/cell/spu_callbacks.c
diff --git a/arch/powerpc/platforms/cell/spu_callbacks.c b/arch/powerpc/platforms/cell/spu_callbacks.c
index deb3afb94484..b283380a2a18 100644
--- a/arch/powerpc/platforms/cell/spu_callbacks.c
+++ b/arch/powerpc/platforms/cell/spu_callbacks.c
@@ -318,6 +318,7 @@ void *spu_syscall_table[] = {
 	[__NR_unshare]			sys_unshare,
 	[__NR_splice]			sys_splice,
 	[__NR_tee]			sys_tee,
+	[__NR_vmsplice]			sys_vmsplice,
 };
 
 long spu_sys_callback(struct spu_syscall_block *s)
diff --git a/fs/splice.c b/fs/splice.c
index 8c6030c762e2..0b2c1f060cae 100644
--- a/fs/splice.c
+++ b/fs/splice.c
@@ -27,6 +27,7 @@
 #include <linux/buffer_head.h>
 #include <linux/module.h>
 #include <linux/syscalls.h>
+#include <linux/uio.h>
 
 /*
  * Passed to the actors
@@ -38,6 +39,22 @@ struct splice_desc {
 	loff_t pos;			/* file position */
 };
 
+struct partial_page {
+	unsigned int offset;
+	unsigned int len;
+};
+
+/*
+ * Passed to move_to_pipe
+ */
+struct splice_pipe_desc {
+	struct page **pages;		/* page map */
+	struct partial_page *partial;	/* pages[] may not be contig */
+	int nr_pages;			/* number of pages in map */
+	unsigned int flags;		/* splice flags */
+	struct pipe_buf_operations *ops;/* ops associated with output pipe */
+};
+
 /*
  * Attempt to steal a page from a pipe buffer. This should perhaps go into
  * a vm helper function, it's already simplified quite a bit by the
@@ -128,6 +145,19 @@ static void page_cache_pipe_buf_unmap(struct pipe_inode_info *info,
 	kunmap(buf->page);
 }
 
+static void *user_page_pipe_buf_map(struct file *file,
+				    struct pipe_inode_info *pipe,
+				    struct pipe_buffer *buf)
+{
+	return kmap(buf->page);
+}
+
+static void user_page_pipe_buf_unmap(struct pipe_inode_info *pipe,
+				     struct pipe_buffer *buf)
+{
+	kunmap(buf->page);
+}
+
 static void page_cache_pipe_buf_get(struct pipe_inode_info *info,
 				    struct pipe_buffer *buf)
 {
@@ -143,19 +173,33 @@ static struct pipe_buf_operations page_cache_pipe_buf_ops = {
 	.get = page_cache_pipe_buf_get,
 };
 
+static int user_page_pipe_buf_steal(struct pipe_inode_info *pipe,
+				    struct pipe_buffer *buf)
+{
+	return 1;
+}
+
+static struct pipe_buf_operations user_page_pipe_buf_ops = {
+	.can_merge = 0,
+	.map = user_page_pipe_buf_map,
+	.unmap = user_page_pipe_buf_unmap,
+	.release = page_cache_pipe_buf_release,
+	.steal = user_page_pipe_buf_steal,
+	.get = page_cache_pipe_buf_get,
+};
+
 /*
  * Pipe output worker. This sets up our pipe format with the page cache
  * pipe buffer operations. Otherwise very similar to the regular pipe_writev().
  */
-static ssize_t move_to_pipe(struct pipe_inode_info *pipe, struct page **pages,
-			    int nr_pages, unsigned long len,
-			    unsigned int offset, unsigned int flags)
+static ssize_t move_to_pipe(struct pipe_inode_info *pipe,
+			    struct splice_pipe_desc *spd)
 {
-	int ret, do_wakeup, i;
+	int ret, do_wakeup, page_nr;
 
 	ret = 0;
 	do_wakeup = 0;
-	i = 0;
+	page_nr = 0;
 
 	if (pipe->inode)
 		mutex_lock(&pipe->inode->i_mutex);
@@ -171,27 +215,19 @@ static ssize_t move_to_pipe(struct pipe_inode_info *pipe, struct page **pages,
 		if (pipe->nrbufs < PIPE_BUFFERS) {
 			int newbuf = (pipe->curbuf + pipe->nrbufs) & (PIPE_BUFFERS - 1);
 			struct pipe_buffer *buf = pipe->bufs + newbuf;
-			struct page *page = pages[i++];
-			unsigned long this_len;
 
-			this_len = PAGE_CACHE_SIZE - offset;
-			if (this_len > len)
-				this_len = len;
-
-			buf->page = page;
-			buf->offset = offset;
-			buf->len = this_len;
-			buf->ops = &page_cache_pipe_buf_ops;
+			buf->page = spd->pages[page_nr];
+			buf->offset = spd->partial[page_nr].offset;
+			buf->len = spd->partial[page_nr].len;
+			buf->ops = spd->ops;
 			pipe->nrbufs++;
+			page_nr++;
+			ret += buf->len;
+
 			if (pipe->inode)
 				do_wakeup = 1;
 
-			ret += this_len;
-			len -= this_len;
-			offset = 0;
-			if (!--nr_pages)
-				break;
-			if (!len)
+			if (!--spd->nr_pages)
 				break;
 			if (pipe->nrbufs < PIPE_BUFFERS)
 				continue;
@@ -199,7 +235,7 @@ static ssize_t move_to_pipe(struct pipe_inode_info *pipe, struct page **pages,
 			break;
 		}
 
-		if (flags & SPLICE_F_NONBLOCK) {
+		if (spd->flags & SPLICE_F_NONBLOCK) {
 			if (!ret)
 				ret = -EAGAIN;
 			break;
@@ -234,8 +270,8 @@ static ssize_t move_to_pipe(struct pipe_inode_info *pipe, struct page **pages,
 		kill_fasync(&pipe->fasync_readers, SIGIO, POLL_IN);
 	}
 
-	while (i < nr_pages)
-		page_cache_release(pages[i++]);
+	while (page_nr < spd->nr_pages)
+		page_cache_release(spd->pages[page_nr++]);
 
 	return ret;
 }
@@ -246,17 +282,24 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
 			   unsigned int flags)
 {
 	struct address_space *mapping = in->f_mapping;
-	unsigned int loff, offset, nr_pages;
+	unsigned int loff, nr_pages;
 	struct page *pages[PIPE_BUFFERS];
+	struct partial_page partial[PIPE_BUFFERS];
 	struct page *page;
 	pgoff_t index, end_index;
 	loff_t isize;
-	size_t bytes;
-	int i, error;
+	size_t total_len;
+	int error;
+	struct splice_pipe_desc spd = {
+		.pages = pages,
+		.partial = partial,
+		.flags = flags,
+		.ops = &page_cache_pipe_buf_ops,
+	};
 
 	index = *ppos >> PAGE_CACHE_SHIFT;
-	loff = offset = *ppos & ~PAGE_CACHE_MASK;
-	nr_pages = (len + offset + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
+	loff = *ppos & ~PAGE_CACHE_MASK;
+	nr_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT;
 
 	if (nr_pages > PIPE_BUFFERS)
 		nr_pages = PIPE_BUFFERS;
@@ -266,15 +309,15 @@ __generic_file_splice_read(struct file *in, loff_t *ppos,
 	 * read-ahead if this is a non-zero offset (we are likely doing small
 	 * chunk splice and the page is already there) for a single page.
 	 */
-	if (!offset || nr_pages > 1)
-		do_page_cache_readahead(mapping, in, index, nr_pages);
+	if (!loff || spd.nr_pages > 1)
+		do_page_cache_readahead(mapping, in, index, spd.nr_pages);
 
 	/*
 	 * Now fill in the holes:
 	 */
 	error = 0;
-	bytes = 0;
-	for (i = 0; i < nr_pages; i++, index++) {
+	total_len = 0;
+	for (spd.nr_pages = 0; spd.nr_pages < nr_pages; spd.nr_pages++, index++) {
 		unsigned int this_len;
 
 		if (!len)
@@ -367,26 +410,29 @@ readpage:
 			 */
 			if (end_index == index) {
 				loff = PAGE_CACHE_SIZE - (isize & ~PAGE_CACHE_MASK);
-				if (bytes + loff > isize) {
+				if (total_len + loff > isize) {
 					page_cache_release(page);
 					break;
 				}
 				/*
 				 * force quit after adding this page
 				 */
-				nr_pages = i;
+				nr_pages = spd.nr_pages;
 				this_len = min(this_len, loff);
+				loff = 0;
 			}
 		}
 fill_it:
-		pages[i] = page;
-		bytes += this_len;
+		pages[spd.nr_pages] = page;
+		partial[spd.nr_pages].offset = loff;
+		partial[spd.nr_pages].len = this_len;
 		len -= this_len;
+		total_len += this_len;
 		loff = 0;
 	}
 
-	if (i)
-		return move_to_pipe(pipe, pages, i, bytes, offset, flags);
+	if (spd.nr_pages)
+		return move_to_pipe(pipe, &spd);
 
 	return error;
 }
@@ -1018,6 +1064,174 @@ static long do_splice(struct file *in, loff_t __user *off_in,
 	return -EINVAL;
 }
 
+/*
+ * Map an iov into an array of pages and offset/length tupples. With the
+ * partial_page structure, we can map several non-contiguous ranges into
+ * our ones pages[] map instead of splitting that operation into pieces.
+ * Could easily be exported as a generic helper for other users, in which
+ * case one would probably want to add a 'max_nr_pages' parameter as well.
+ */
+static int get_iovec_page_array(const struct iovec __user *iov,
+				unsigned int nr_vecs, struct page **pages,
+				struct partial_page *partial)
+{
+	int buffers = 0, error = 0;
+
+	/*
+	 * It's ok to take the mmap_sem for reading, even
+	 * across a "get_user()".
+	 */
+	down_read(&current->mm->mmap_sem);
+
+	while (nr_vecs) {
+		unsigned long off, npages;
+		void __user *base;
+		size_t len;
+		int i;
+
+		/*
+		 * Get user address base and length for this iovec.
+		 */
+		error = get_user(base, &iov->iov_base);
+		if (unlikely(error))
+			break;
+		error = get_user(len, &iov->iov_len);
+		if (unlikely(error))
+			break;
+
+		/*
+		 * Sanity check this iovec. 0 read succeeds.
+		 */
+		if (unlikely(!len))
+			break;
+		error = -EFAULT;
+		if (unlikely(!base))
+			break;
+
+		/*
+		 * Get this base offset and number of pages, then map
+		 * in the user pages.
+		 */
+		off = (unsigned long) base & ~PAGE_MASK;
+		npages = (off + len + PAGE_SIZE - 1) >> PAGE_SHIFT;
+		if (npages > PIPE_BUFFERS - buffers)
+			npages = PIPE_BUFFERS - buffers;
+
+		error = get_user_pages(current, current->mm,
+				       (unsigned long) base, npages, 0, 0,
+				       &pages[buffers], NULL);
+
+		if (unlikely(error <= 0))
+			break;
+
+		/*
+		 * Fill this contiguous range into the partial page map.
+		 */
+		for (i = 0; i < error; i++) {
+			const int plen = min_t(size_t, len, PAGE_SIZE) - off;
+
+			partial[buffers].offset = off;
+			partial[buffers].len = plen;
+
+			off = 0;
+			len -= plen;
+			buffers++;
+		}
+
+		/*
+		 * We didn't complete this iov, stop here since it probably
+		 * means we have to move some of this into a pipe to
+		 * be able to continue.
+		 */
+		if (len)
+			break;
+
+		/*
+		 * Don't continue if we mapped fewer pages than we asked for,
+		 * or if we mapped the max number of pages that we have
+		 * room for.
+		 */
+		if (error < npages || buffers == PIPE_BUFFERS)
+			break;
+
+		nr_vecs--;
+		iov++;
+	}
+
+	up_read(&current->mm->mmap_sem);
+
+	if (buffers)
+		return buffers;
+
+	return error;
+}
+
+/*
+ * vmsplice splices a user address range into a pipe. It can be thought of
+ * as splice-from-memory, where the regular splice is splice-from-file (or
+ * to file). In both cases the output is a pipe, naturally.
+ *
+ * Note that vmsplice only supports splicing _from_ user memory to a pipe,
+ * not the other way around. Splicing from user memory is a simple operation
+ * that can be supported without any funky alignment restrictions or nasty
+ * vm tricks. We simply map in the user memory and fill them into a pipe.
+ * The reverse isn't quite as easy, though. There are two possible solutions
+ * for that:
+ *
+ *	- memcpy() the data internally, at which point we might as well just
+ *	  do a regular read() on the buffer anyway.
+ *	- Lots of nasty vm tricks, that are neither fast nor flexible (it
+ *	  has restriction limitations on both ends of the pipe).
+ *
+ * Alas, it isn't here.
+ *
+ */
+static long do_vmsplice(struct file *file, const struct iovec __user *iov,
+			unsigned long nr_segs, unsigned int flags)
+{
+	struct pipe_inode_info *pipe = file->f_dentry->d_inode->i_pipe;
+	struct page *pages[PIPE_BUFFERS];
+	struct partial_page partial[PIPE_BUFFERS];
+	struct splice_pipe_desc spd = {
+		.pages = pages,
+		.partial = partial,
+		.flags = flags,
+		.ops = &user_page_pipe_buf_ops,
+	};
+
+	if (unlikely(!pipe))
+		return -EBADF;
+	if (unlikely(nr_segs > UIO_MAXIOV))
+		return -EINVAL;
+	else if (unlikely(!nr_segs))
+		return 0;
+
+	spd.nr_pages = get_iovec_page_array(iov, nr_segs, pages, partial);
+	if (spd.nr_pages <= 0)
+		return spd.nr_pages;
+
+	return move_to_pipe(pipe, &spd);
+}
+
+asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
+			     unsigned long nr_segs, unsigned int flags)
+{
+	struct file *file;
+	long error;
+	int fput;
+
+	error = -EBADF;
+	file = fget_light(fd, &fput);
+	if (file) {
+		if (file->f_mode & FMODE_WRITE)
+			error = do_vmsplice(file, iov, nr_segs, flags);
+
+		fput_light(file, fput);
+	}
+
+	return error;
+}
+
 asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
 			   int fd_out, loff_t __user *off_out,
 			   size_t len, unsigned int flags)
diff --git a/include/asm-i386/unistd.h b/include/asm-i386/unistd.h
index d81d6cfc1bb4..eb4b152c82fc 100644
--- a/include/asm-i386/unistd.h
+++ b/include/asm-i386/unistd.h
@@ -321,8 +321,9 @@
 #define __NR_splice		313
 #define __NR_sync_file_range	314
 #define __NR_tee		315
+#define __NR_vmsplice		316
 
-#define NR_syscalls 316
+#define NR_syscalls 317
 
 /*
  * user-visible error numbers are in the range -1 - -128: see
diff --git a/include/asm-ia64/unistd.h b/include/asm-ia64/unistd.h
index a40ebec6aeeb..7107763168bf 100644
--- a/include/asm-ia64/unistd.h
+++ b/include/asm-ia64/unistd.h
@@ -290,12 +290,13 @@
 #define __NR_get_robust_list		1299
 #define __NR_sync_file_range		1300
 #define __NR_tee			1301
+#define __NR_vmsplice			1302
 
 #ifdef __KERNEL__
 
 #include <linux/config.h>
 
-#define NR_syscalls			278 /* length of syscall table */
+#define NR_syscalls			279 /* length of syscall table */
 
 #define __ARCH_WANT_SYS_RT_SIGACTION
 
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index c612f1a62772..34325e292596 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -303,8 +303,9 @@
 #define __NR_unshare		282
 #define __NR_splice		283
 #define __NR_tee		284
+#define __NR_vmsplice		285
 
-#define __NR_syscalls		285
+#define __NR_syscalls		286
 
 #ifdef __KERNEL__
 #define __NR__exit __NR_exit
diff --git a/include/asm-x86_64/unistd.h b/include/asm-x86_64/unistd.h
index 98c36eae567c..feb77cb8c044 100644
--- a/include/asm-x86_64/unistd.h
+++ b/include/asm-x86_64/unistd.h
@@ -615,8 +615,10 @@ __SYSCALL(__NR_splice, sys_splice)
 __SYSCALL(__NR_tee, sys_tee)
 #define __NR_sync_file_range	277
 __SYSCALL(__NR_sync_file_range, sys_sync_file_range)
+#define __NR_vmsplice		278
+__SYSCALL(__NR_vmsplice, sys_vmsplice)
 
-#define __NR_syscall_max __NR_sync_file_range
+#define __NR_syscall_max __NR_vmsplice
 
 #ifndef __NO_STUBS
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d3ebc0e68b2b..3996960fc565 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -574,6 +574,9 @@ asmlinkage long sys_splice(int fd_in, loff_t __user *off_in,
 			   int fd_out, loff_t __user *off_out,
 			   size_t len, unsigned int flags);
 
+asmlinkage long sys_vmsplice(int fd, const struct iovec __user *iov,
+			     unsigned long nr_segs, unsigned int flags);
+
 asmlinkage long sys_tee(int fdin, int fdout, size_t len, unsigned int flags);
 
 asmlinkage long sys_sync_file_range(int fd, loff_t offset, loff_t nbytes,
-- 
cgit v1.2.3


From c67808eee61a01c3128298c5972426a1a67b9093 Mon Sep 17 00:00:00 2001
From: Jean Delvare <khali@linux-fr.org>
Date: Sun, 9 Apr 2006 20:07:35 +0200
Subject: [PATCH] USB: Use new PCI_CLASS_SERIAL_USB_* defines

We could use the recently added PCI_CLASS_SERIAL_USB_UHCI,
PCI_CLASS_SERIAL_USB_OHCI and PCI_CLASS_SERIAL_USB_EHCI defines in
more places, for slightly shorter and clearer code.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 arch/powerpc/platforms/powermac/pci.c | 2 +-
 drivers/usb/host/ehci-pci.c           | 2 +-
 drivers/usb/host/ohci-pci.c           | 2 +-
 drivers/usb/host/uhci-hcd.c           | 2 +-
 4 files changed, 4 insertions(+), 4 deletions(-)

(limited to 'arch/powerpc/platforms')

diff --git a/arch/powerpc/platforms/powermac/pci.c b/arch/powerpc/platforms/powermac/pci.c
index f5d8d15d74fa..ea179afea632 100644
--- a/arch/powerpc/platforms/powermac/pci.c
+++ b/arch/powerpc/platforms/powermac/pci.c
@@ -1097,7 +1097,7 @@ pmac_pci_enable_device_hook(struct pci_dev *dev, int initial)
 	 * (iBook second controller)
 	 */
 	if (dev->vendor == PCI_VENDOR_ID_APPLE
-	    && (dev->class == ((PCI_CLASS_SERIAL_USB << 8) | 0x10))
+	    && dev->class == PCI_CLASS_SERIAL_USB_OHCI
 	    && !node) {
 		printk(KERN_INFO "Apple USB OHCI %s disabled by firmware\n",
 		       pci_name(dev));
diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index 1e03f1a5a5fd..a1bd2bea6deb 100644
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -350,7 +350,7 @@ static const struct hc_driver ehci_pci_hc_driver = {
 /* PCI driver selection metadata; PCI hotplugging uses this */
 static const struct pci_device_id pci_ids [] = { {
 	/* handle any USB 2.0 EHCI controller */
-	PCI_DEVICE_CLASS(((PCI_CLASS_SERIAL_USB << 8) | 0x20), ~0),
+	PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0),
 	.driver_data =	(unsigned long) &ehci_pci_hc_driver,
 	},
 	{ /* end: all zeroes */ }
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index 1bfe96f4d045..b268537e389e 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -206,7 +206,7 @@ static const struct hc_driver ohci_pci_hc_driver = {
 
 static const struct pci_device_id pci_ids [] = { {
 	/* handle any USB OHCI controller */
-	PCI_DEVICE_CLASS((PCI_CLASS_SERIAL_USB << 8) | 0x10, ~0),
+	PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_OHCI, ~0),
 	.driver_data =	(unsigned long) &ohci_pci_hc_driver,
 	}, { /* end: all zeroes */ }
 };
diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index c0c4db78b590..d225e11f4055 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -858,7 +858,7 @@ static const struct hc_driver uhci_driver = {
 
 static const struct pci_device_id uhci_pci_ids[] = { {
 	/* handle any USB UHCI controller */
-	PCI_DEVICE_CLASS(((PCI_CLASS_SERIAL_USB << 8) | 0x00), ~0),
+	PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_UHCI, ~0),
 	.driver_data =	(unsigned long) &uhci_driver,
 	}, { /* end: all zeroes */ }
 };
-- 
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