From e81b3295bc54eb0d03f4cdfc8cbf72e731d1b402 Mon Sep 17 00:00:00 2001 From: Nathan Fontenot Date: Tue, 2 Oct 2012 16:55:01 +0000 Subject: powerpc+of: Add /proc device tree updating to of node add/remove When adding or removing a device tree node we should also update the device tree in /proc/device-tree. This action is already done in the generic OF code for adding/removing properties of a node. This patch adds this functionality for nodes. Signed-off-by: Nathan Fontenot Acked-by: Rob Herring Acked-by: Grant Likely Signed-off-by: Benjamin Herrenschmidt --- drivers/of/base.c | 55 +++++++++++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 51 insertions(+), 4 deletions(-) (limited to 'drivers') diff --git a/drivers/of/base.c b/drivers/of/base.c index af3b22ac762..bbd073f53c9 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1160,6 +1160,22 @@ int prom_update_property(struct device_node *np, * device tree nodes. */ +#ifdef CONFIG_PROC_DEVICETREE +static void of_add_proc_dt_entry(struct device_node *dn) +{ + struct proc_dir_entry *ent; + + ent = proc_mkdir(strrchr(dn->full_name, '/') + 1, dn->parent->pde); + if (ent) + proc_device_tree_add_node(dn, ent); +} +#else +static void of_add_proc_dt_entry(struct device_node *dn) +{ + return; +} +#endif + /** * of_attach_node - Plug a device node into the tree and global list. */ @@ -1173,8 +1189,31 @@ void of_attach_node(struct device_node *np) np->parent->child = np; allnodes = np; write_unlock_irqrestore(&devtree_lock, flags); + + of_add_proc_dt_entry(np); } +#ifdef CONFIG_PROC_DEVICETREE +static void of_remove_proc_dt_entry(struct device_node *dn) +{ + struct device_node *parent = dn->parent; + struct property *prop = dn->properties; + + while (prop) { + remove_proc_entry(prop->name, dn->pde); + prop = prop->next; + } + + if (dn->pde) + remove_proc_entry(dn->pde->name, parent->pde); +} +#else +static void of_remove_proc_dt_entry(struct device_node *dn) +{ + return; +} +#endif + /** * of_detach_node - "Unplug" a node from the device tree. * @@ -1188,9 +1227,17 @@ void of_detach_node(struct device_node *np) write_lock_irqsave(&devtree_lock, flags); + if (of_node_check_flag(np, OF_DETACHED)) { + /* someone already detached it */ + write_unlock_irqrestore(&devtree_lock, flags); + return; + } + parent = np->parent; - if (!parent) - goto out_unlock; + if (!parent) { + write_unlock_irqrestore(&devtree_lock, flags); + return; + } if (allnodes == np) allnodes = np->allnext; @@ -1215,9 +1262,9 @@ void of_detach_node(struct device_node *np) } of_node_set_flag(np, OF_DETACHED); - -out_unlock: write_unlock_irqrestore(&devtree_lock, flags); + + of_remove_proc_dt_entry(np); } #endif /* defined(CONFIG_OF_DYNAMIC) */ -- cgit v1.2.3 From 1cf3d8b3d24cd383ddfd5442c83ec5c355ffc2f7 Mon Sep 17 00:00:00 2001 From: Nathan Fontenot Date: Tue, 2 Oct 2012 16:57:57 +0000 Subject: powerpc+of: Add of node/property notification chain for adds and removes This patch moves the notification chain for updates to the device tree from the powerpc/pseries code to the base OF code. This makes this functionality available to all architectures. Additionally the notification chain is updated to allow notifications for property add/remove/update. To make this work a pointer to a new struct (of_prop_reconfig) is passed to the routines in the notification chain. The of_prop_reconfig property contains a pointer to the node containing the property and a pointer to the property itself. In the case of property updates, the property pointer refers to the new property. Signed-off-by: Nathan Fontenot Acked-by: Rob Herring Acked-by: Grant Likely Signed-off-by: Benjamin Herrenschmidt --- drivers/crypto/nx/nx-842.c | 20 +++++-------- drivers/crypto/nx/nx.c | 1 - drivers/of/base.c | 74 ++++++++++++++++++++++++++++++++++++++++++---- 3 files changed, 77 insertions(+), 18 deletions(-) (limited to 'drivers') diff --git a/drivers/crypto/nx/nx-842.c b/drivers/crypto/nx/nx-842.c index 0ce62573867..6c4c000671c 100644 --- a/drivers/crypto/nx/nx-842.c +++ b/drivers/crypto/nx/nx-842.c @@ -28,7 +28,6 @@ #include #include -#include #include #include "nx_csbcpb.h" /* struct nx_csbcpb */ @@ -1014,26 +1013,23 @@ error_out: * NOTIFY_BAD encoded with error number on failure, use * notifier_to_errno() to decode this value */ -static int nx842_OF_notifier(struct notifier_block *np, - unsigned long action, - void *update) +static int nx842_OF_notifier(struct notifier_block *np, unsigned long action, + void *update) { - struct pSeries_reconfig_prop_update *upd; + struct of_prop_reconfig *upd = update; struct nx842_devdata *local_devdata; struct device_node *node = NULL; - upd = (struct pSeries_reconfig_prop_update *)update; - rcu_read_lock(); local_devdata = rcu_dereference(devdata); if (local_devdata) node = local_devdata->dev->of_node; if (local_devdata && - action == PSERIES_UPDATE_PROPERTY && - !strcmp(upd->node->name, node->name)) { + action == OF_RECONFIG_UPDATE_PROPERTY && + !strcmp(upd->dn->name, node->name)) { rcu_read_unlock(); - nx842_OF_upd(upd->property); + nx842_OF_upd(upd->prop); } else rcu_read_unlock(); @@ -1182,7 +1178,7 @@ static int __init nx842_probe(struct vio_dev *viodev, synchronize_rcu(); kfree(old_devdata); - pSeries_reconfig_notifier_register(&nx842_of_nb); + of_reconfig_notifier_register(&nx842_of_nb); ret = nx842_OF_upd(NULL); if (ret && ret != -ENODEV) { @@ -1228,7 +1224,7 @@ static int __exit nx842_remove(struct vio_dev *viodev) spin_lock_irqsave(&devdata_mutex, flags); old_devdata = rcu_dereference_check(devdata, lockdep_is_held(&devdata_mutex)); - pSeries_reconfig_notifier_unregister(&nx842_of_nb); + of_reconfig_notifier_unregister(&nx842_of_nb); rcu_assign_pointer(devdata, NULL); spin_unlock_irqrestore(&devdata_mutex, flags); synchronize_rcu(); diff --git a/drivers/crypto/nx/nx.c b/drivers/crypto/nx/nx.c index 638110efae9..f7a8a16aa7d 100644 --- a/drivers/crypto/nx/nx.c +++ b/drivers/crypto/nx/nx.c @@ -33,7 +33,6 @@ #include #include #include -#include #include #include diff --git a/drivers/of/base.c b/drivers/of/base.c index bbd073f53c9..87b63850e8d 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1028,6 +1028,24 @@ int of_parse_phandle_with_args(struct device_node *np, const char *list_name, } EXPORT_SYMBOL(of_parse_phandle_with_args); +#if defined(CONFIG_OF_DYNAMIC) +static int of_property_notify(int action, struct device_node *np, + struct property *prop) +{ + struct of_prop_reconfig pr; + + pr.dn = np; + pr.prop = prop; + return of_reconfig_notify(action, &pr); +} +#else +static int of_property_notify(int action, struct device_node *np, + struct property *prop) +{ + return 0; +} +#endif + /** * prom_add_property - Add a property to a node */ @@ -1035,6 +1053,11 @@ int prom_add_property(struct device_node *np, struct property *prop) { struct property **next; unsigned long flags; + int rc; + + rc = of_property_notify(OF_RECONFIG_ADD_PROPERTY, np, prop); + if (rc) + return rc; prop->next = NULL; write_lock_irqsave(&devtree_lock, flags); @@ -1072,6 +1095,11 @@ int prom_remove_property(struct device_node *np, struct property *prop) struct property **next; unsigned long flags; int found = 0; + int rc; + + rc = of_property_notify(OF_RECONFIG_REMOVE_PROPERTY, np, prop); + if (rc) + return rc; write_lock_irqsave(&devtree_lock, flags); next = &np->properties; @@ -1114,7 +1142,11 @@ int prom_update_property(struct device_node *np, { struct property **next, *oldprop; unsigned long flags; - int found = 0; + int rc, found = 0; + + rc = of_property_notify(OF_RECONFIG_UPDATE_PROPERTY, np, newprop); + if (rc) + return rc; if (!newprop->name) return -EINVAL; @@ -1160,6 +1192,26 @@ int prom_update_property(struct device_node *np, * device tree nodes. */ +static BLOCKING_NOTIFIER_HEAD(of_reconfig_chain); + +int of_reconfig_notifier_register(struct notifier_block *nb) +{ + return blocking_notifier_chain_register(&of_reconfig_chain, nb); +} + +int of_reconfig_notifier_unregister(struct notifier_block *nb) +{ + return blocking_notifier_chain_unregister(&of_reconfig_chain, nb); +} + +int of_reconfig_notify(unsigned long action, void *p) +{ + int rc; + + rc = blocking_notifier_call_chain(&of_reconfig_chain, action, p); + return notifier_to_errno(rc); +} + #ifdef CONFIG_PROC_DEVICETREE static void of_add_proc_dt_entry(struct device_node *dn) { @@ -1179,9 +1231,14 @@ static void of_add_proc_dt_entry(struct device_node *dn) /** * of_attach_node - Plug a device node into the tree and global list. */ -void of_attach_node(struct device_node *np) +int of_attach_node(struct device_node *np) { unsigned long flags; + int rc; + + rc = of_reconfig_notify(OF_RECONFIG_ATTACH_NODE, np); + if (rc) + return rc; write_lock_irqsave(&devtree_lock, flags); np->sibling = np->parent->child; @@ -1191,6 +1248,7 @@ void of_attach_node(struct device_node *np) write_unlock_irqrestore(&devtree_lock, flags); of_add_proc_dt_entry(np); + return 0; } #ifdef CONFIG_PROC_DEVICETREE @@ -1220,23 +1278,28 @@ static void of_remove_proc_dt_entry(struct device_node *dn) * The caller must hold a reference to the node. The memory associated with * the node is not freed until its refcount goes to zero. */ -void of_detach_node(struct device_node *np) +int of_detach_node(struct device_node *np) { struct device_node *parent; unsigned long flags; + int rc = 0; + + rc = of_reconfig_notify(OF_RECONFIG_DETACH_NODE, np); + if (rc) + return rc; write_lock_irqsave(&devtree_lock, flags); if (of_node_check_flag(np, OF_DETACHED)) { /* someone already detached it */ write_unlock_irqrestore(&devtree_lock, flags); - return; + return rc; } parent = np->parent; if (!parent) { write_unlock_irqrestore(&devtree_lock, flags); - return; + return rc; } if (allnodes == np) @@ -1265,6 +1328,7 @@ void of_detach_node(struct device_node *np) write_unlock_irqrestore(&devtree_lock, flags); of_remove_proc_dt_entry(np); + return rc; } #endif /* defined(CONFIG_OF_DYNAMIC) */ -- cgit v1.2.3 From 79d1c712958f94372482ad74578b00f44e744c12 Mon Sep 17 00:00:00 2001 From: Nathan Fontenot Date: Tue, 2 Oct 2012 16:58:46 +0000 Subject: powerpc+of: Rename the drivers/of prom_* functions to of_* Rename the prom_*_property routines of the generic OF code to of_*_property. This brings them in line with the naming used by the rest of the OF code. Signed-off-by: Nathan Fontenot Acked-by: Geoff Levand Acked-by: Rob Herring Acked-by: Grant Likely Signed-off-by: Benjamin Herrenschmidt --- drivers/macintosh/smu.c | 2 +- drivers/of/base.c | 15 +++++++-------- 2 files changed, 8 insertions(+), 9 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/smu.c b/drivers/macintosh/smu.c index 7d5a6b40b31..5b939509db3 100644 --- a/drivers/macintosh/smu.c +++ b/drivers/macintosh/smu.c @@ -997,7 +997,7 @@ static struct smu_sdbp_header *smu_create_sdb_partition(int id) "%02x !\n", id, hdr->id); goto failure; } - if (prom_add_property(smu->of_node, prop)) { + if (of_add_property(smu->of_node, prop)) { printk(KERN_DEBUG "SMU: Failed creating sdb-partition-%02x " "property !\n", id); goto failure; diff --git a/drivers/of/base.c b/drivers/of/base.c index 87b63850e8d..02d94c4ea83 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1047,9 +1047,9 @@ static int of_property_notify(int action, struct device_node *np, #endif /** - * prom_add_property - Add a property to a node + * of_add_property - Add a property to a node */ -int prom_add_property(struct device_node *np, struct property *prop) +int of_add_property(struct device_node *np, struct property *prop) { struct property **next; unsigned long flags; @@ -1083,14 +1083,14 @@ int prom_add_property(struct device_node *np, struct property *prop) } /** - * prom_remove_property - Remove a property from a node. + * of_remove_property - Remove a property from a node. * * Note that we don't actually remove it, since we have given out * who-knows-how-many pointers to the data using get-property. * Instead we just move the property to the "dead properties" * list, so it won't be found any more. */ -int prom_remove_property(struct device_node *np, struct property *prop) +int of_remove_property(struct device_node *np, struct property *prop) { struct property **next; unsigned long flags; @@ -1129,7 +1129,7 @@ int prom_remove_property(struct device_node *np, struct property *prop) } /* - * prom_update_property - Update a property in a node, if the property does + * of_update_property - Update a property in a node, if the property does * not exist, add it. * * Note that we don't actually remove it, since we have given out @@ -1137,8 +1137,7 @@ int prom_remove_property(struct device_node *np, struct property *prop) * Instead we just move the property to the "dead properties" list, * and add the new property to the property list */ -int prom_update_property(struct device_node *np, - struct property *newprop) +int of_update_property(struct device_node *np, struct property *newprop) { struct property **next, *oldprop; unsigned long flags; @@ -1153,7 +1152,7 @@ int prom_update_property(struct device_node *np, oldprop = of_find_property(np, newprop->name, NULL); if (!oldprop) - return prom_add_property(np, newprop); + return of_add_property(np, newprop); write_lock_irqsave(&devtree_lock, flags); next = &np->properties; -- cgit v1.2.3 From 6c39dcc465373daae484b1a893e47b5e631fb62f Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Dan=20Hor=C3=A1k?= Date: Wed, 12 Sep 2012 06:06:44 +0000 Subject: fbdev: Add GXT4000P and GXT6500P support to the gxt4500 driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit I'm reviving an old patch from 2009 that adds support for GXT4000P and GXT6500P adapter to the gxt4500 driver. See threads at http://marc.info/?l=linux-fbdev-devel&m=124345080216952&w=2 and https://lists.ozlabs.org/pipermail/linuxppc-dev/2009-June/072672.html for more details. This patch adds support for GXT4000P and GXT6500P cards found on some IBM pSeries machines. GXT4000P/6000P and GXT4500P/6500P couples are identical from software's point of view and are based on the same Raster Engine (RC1000), except for a different reference clock for the PLL. GXT6x00P models are equipped with an additional Geometry Engine (GT1000) but this driver doesn't use it. Signed-off-by: Nico Macrionitis Signed-off-by: Giuseppe Coviello Tested-by: Dan Horák Signed-off-by: Benjamin Herrenschmidt --- drivers/video/Kconfig | 8 +++++--- drivers/video/gxt4500.c | 15 +++++++++++++-- 2 files changed, 18 insertions(+), 5 deletions(-) (limited to 'drivers') diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index d08d7998a4a..0cff083fbbe 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -2140,14 +2140,16 @@ config FB_UDL To compile as a module, choose M here: the module name is udlfb. config FB_IBM_GXT4500 - tristate "Framebuffer support for IBM GXT4500P adaptor" + tristate "Framebuffer support for IBM GXT4000P/4500P/6000P/6500P adaptors" depends on FB && PPC select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT ---help--- - Say Y here to enable support for the IBM GXT4500P display - adaptor, found on some IBM System P (pSeries) machines. + Say Y here to enable support for the IBM GXT4000P/6000P and + GXT4500P/6500P display adaptor based on Raster Engine RC1000, + found on some IBM System P (pSeries) machines. This driver + doesn't use Geometry Engine GT1000. config FB_PS3 tristate "PS3 GPU framebuffer driver" diff --git a/drivers/video/gxt4500.c b/drivers/video/gxt4500.c index 0e9afa41d16..4bdea6e9bd5 100644 --- a/drivers/video/gxt4500.c +++ b/drivers/video/gxt4500.c @@ -1,5 +1,6 @@ /* - * Frame buffer device for IBM GXT4500P and GXT6000P display adaptors + * Frame buffer device for IBM GXT4500P/6500P and GXT4000P/6000P + * display adaptors * * Copyright (C) 2006 Paul Mackerras, IBM Corp. */ @@ -14,6 +15,8 @@ #include #define PCI_DEVICE_ID_IBM_GXT4500P 0x21c +#define PCI_DEVICE_ID_IBM_GXT6500P 0x21b +#define PCI_DEVICE_ID_IBM_GXT4000P 0x16e #define PCI_DEVICE_ID_IBM_GXT6000P 0x170 /* GXT4500P registers */ @@ -173,6 +176,8 @@ static const struct fb_videomode defaultmode __devinitconst = { /* List of supported cards */ enum gxt_cards { GXT4500P, + GXT6500P, + GXT4000P, GXT6000P }; @@ -182,6 +187,8 @@ static const struct cardinfo { const char *cardname; } cardinfo[] = { [GXT4500P] = { .refclk_ps = 9259, .cardname = "IBM GXT4500P" }, + [GXT6500P] = { .refclk_ps = 9259, .cardname = "IBM GXT6500P" }, + [GXT4000P] = { .refclk_ps = 40000, .cardname = "IBM GXT4000P" }, [GXT6000P] = { .refclk_ps = 40000, .cardname = "IBM GXT6000P" }, }; @@ -736,6 +743,10 @@ static void __devexit gxt4500_remove(struct pci_dev *pdev) static const struct pci_device_id gxt4500_pci_tbl[] = { { PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_GXT4500P), .driver_data = GXT4500P }, + { PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_GXT6500P), + .driver_data = GXT6500P }, + { PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_GXT4000P), + .driver_data = GXT4000P }, { PCI_DEVICE(PCI_VENDOR_ID_IBM, PCI_DEVICE_ID_IBM_GXT6000P), .driver_data = GXT6000P }, { 0 } @@ -768,7 +779,7 @@ static void __exit gxt4500_exit(void) module_exit(gxt4500_exit); MODULE_AUTHOR("Paul Mackerras "); -MODULE_DESCRIPTION("FBDev driver for IBM GXT4500P/6000P"); +MODULE_DESCRIPTION("FBDev driver for IBM GXT4500P/6500P and GXT4000P/6000P"); MODULE_LICENSE("GPL"); module_param(mode_option, charp, 0); MODULE_PARM_DESC(mode_option, "Specify resolution as \"x[-][@]\""); -- cgit v1.2.3 From f7fb862b843269d02a2fa75e4bbb49603f801b88 Mon Sep 17 00:00:00 2001 From: Wei Yongjun Date: Mon, 8 Oct 2012 03:00:04 +0000 Subject: powerpc/windfarm: Use module_i2c_driver to simplify the code Use the module_i2c_driver() macro to make the code smaller and a bit simpler. dpatch engine is used to auto generate this patch. (https://github.com/weiyj/dpatch) Signed-off-by: Wei Yongjun Signed-off-by: Benjamin Herrenschmidt --- drivers/macintosh/windfarm_fcu_controls.c | 14 +------------- drivers/macintosh/windfarm_lm75_sensor.c | 14 +------------- drivers/macintosh/windfarm_max6690_sensor.c | 13 +------------ drivers/macintosh/windfarm_smu_sat.c | 13 +------------ 4 files changed, 4 insertions(+), 50 deletions(-) (limited to 'drivers') diff --git a/drivers/macintosh/windfarm_fcu_controls.c b/drivers/macintosh/windfarm_fcu_controls.c index b3411edb324..fd6ed15a979 100644 --- a/drivers/macintosh/windfarm_fcu_controls.c +++ b/drivers/macintosh/windfarm_fcu_controls.c @@ -593,19 +593,7 @@ static struct i2c_driver wf_fcu_driver = { .id_table = wf_fcu_id, }; -static int __init wf_fcu_init(void) -{ - return i2c_add_driver(&wf_fcu_driver); -} - -static void __exit wf_fcu_exit(void) -{ - i2c_del_driver(&wf_fcu_driver); -} - - -module_init(wf_fcu_init); -module_exit(wf_fcu_exit); +module_i2c_driver(wf_fcu_driver); MODULE_AUTHOR("Benjamin Herrenschmidt "); MODULE_DESCRIPTION("FCU control objects for PowerMacs thermal control"); diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c index b0c2d3695b3..9ef32b3df91 100644 --- a/drivers/macintosh/windfarm_lm75_sensor.c +++ b/drivers/macintosh/windfarm_lm75_sensor.c @@ -174,19 +174,7 @@ static struct i2c_driver wf_lm75_driver = { .id_table = wf_lm75_id, }; -static int __init wf_lm75_sensor_init(void) -{ - return i2c_add_driver(&wf_lm75_driver); -} - -static void __exit wf_lm75_sensor_exit(void) -{ - i2c_del_driver(&wf_lm75_driver); -} - - -module_init(wf_lm75_sensor_init); -module_exit(wf_lm75_sensor_exit); +module_i2c_driver(wf_lm75_driver); MODULE_AUTHOR("Benjamin Herrenschmidt "); MODULE_DESCRIPTION("LM75 sensor objects for PowerMacs thermal control"); diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c index 371b058d2f7..945a25b2f31 100644 --- a/drivers/macintosh/windfarm_max6690_sensor.c +++ b/drivers/macintosh/windfarm_max6690_sensor.c @@ -130,18 +130,7 @@ static struct i2c_driver wf_max6690_driver = { .id_table = wf_max6690_id, }; -static int __init wf_max6690_sensor_init(void) -{ - return i2c_add_driver(&wf_max6690_driver); -} - -static void __exit wf_max6690_sensor_exit(void) -{ - i2c_del_driver(&wf_max6690_driver); -} - -module_init(wf_max6690_sensor_init); -module_exit(wf_max6690_sensor_exit); +module_i2c_driver(wf_max6690_driver); MODULE_AUTHOR("Paul Mackerras "); MODULE_DESCRIPTION("MAX6690 sensor objects for PowerMac thermal control"); diff --git a/drivers/macintosh/windfarm_smu_sat.c b/drivers/macintosh/windfarm_smu_sat.c index 426e810233d..d87f5ee04ca 100644 --- a/drivers/macintosh/windfarm_smu_sat.c +++ b/drivers/macintosh/windfarm_smu_sat.c @@ -364,18 +364,7 @@ static struct i2c_driver wf_sat_driver = { .id_table = wf_sat_id, }; -static int __init sat_sensors_init(void) -{ - return i2c_add_driver(&wf_sat_driver); -} - -static void __exit sat_sensors_exit(void) -{ - i2c_del_driver(&wf_sat_driver); -} - -module_init(sat_sensors_init); -module_exit(sat_sensors_exit); +module_i2c_driver(wf_sat_driver); MODULE_AUTHOR("Paul Mackerras "); MODULE_DESCRIPTION("SMU satellite sensors for PowerMac thermal control"); -- cgit v1.2.3 From cca55d9ddf6d431114ab9f7cad3e761b74255c9c Mon Sep 17 00:00:00 2001 From: Ian Munsie Date: Thu, 8 Nov 2012 16:10:29 +1100 Subject: powerpc: Move get_longbusy_msecs into hvcall.h and remove duplicate function I am going to use this in the next patch, better to have this code in one place rather than three. Signed-off-by: Ian Munsie Signed-off-by: Michael Neuling Signed-off-by: Benjamin Herrenschmidt --- drivers/infiniband/hw/ehca/hcp_if.c | 20 -------------------- drivers/net/ethernet/ibm/ehea/ehea_phyp.h | 20 -------------------- 2 files changed, 40 deletions(-) (limited to 'drivers') diff --git a/drivers/infiniband/hw/ehca/hcp_if.c b/drivers/infiniband/hw/ehca/hcp_if.c index 2d41d04fd95..89517ffb438 100644 --- a/drivers/infiniband/hw/ehca/hcp_if.c +++ b/drivers/infiniband/hw/ehca/hcp_if.c @@ -90,26 +90,6 @@ static DEFINE_SPINLOCK(hcall_lock); -static u32 get_longbusy_msecs(int longbusy_rc) -{ - switch (longbusy_rc) { - case H_LONG_BUSY_ORDER_1_MSEC: - return 1; - case H_LONG_BUSY_ORDER_10_MSEC: - return 10; - case H_LONG_BUSY_ORDER_100_MSEC: - return 100; - case H_LONG_BUSY_ORDER_1_SEC: - return 1000; - case H_LONG_BUSY_ORDER_10_SEC: - return 10000; - case H_LONG_BUSY_ORDER_100_SEC: - return 100000; - default: - return 1; - } -} - static long ehca_plpar_hcall_norets(unsigned long opcode, unsigned long arg1, unsigned long arg2, diff --git a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h b/drivers/net/ethernet/ibm/ehea/ehea_phyp.h index 8364815c32f..99b6c2a38db 100644 --- a/drivers/net/ethernet/ibm/ehea/ehea_phyp.h +++ b/drivers/net/ethernet/ibm/ehea/ehea_phyp.h @@ -39,26 +39,6 @@ * hcp_* - structures, variables and functions releated to Hypervisor Calls */ -static inline u32 get_longbusy_msecs(int long_busy_ret_code) -{ - switch (long_busy_ret_code) { - case H_LONG_BUSY_ORDER_1_MSEC: - return 1; - case H_LONG_BUSY_ORDER_10_MSEC: - return 10; - case H_LONG_BUSY_ORDER_100_MSEC: - return 100; - case H_LONG_BUSY_ORDER_1_SEC: - return 1000; - case H_LONG_BUSY_ORDER_10_SEC: - return 10000; - case H_LONG_BUSY_ORDER_100_SEC: - return 100000; - default: - return 1; - } -} - /* Number of pages which can be registered at once by H_REGISTER_HEA_RPAGES */ #define EHEA_MAX_RPAGE 512 -- cgit v1.2.3 From 9655aa6b8034ebb69724dc4b54ad4f64a53096d1 Mon Sep 17 00:00:00 2001 From: Timur Tabi Date: Thu, 17 May 2012 14:10:27 -0500 Subject: drivers/virt: the Freescale hypervisor driver doesn't need to check MSR[GS] The MSR[GS] bit indicates whether the kernel is running in processor guest state mode, but such a check is unnecessary. The driver already checks for the /hypervisor node and the fsl,hv-version property, so it already knows that it's running under the Freescale hypervisor. There is nothing in the driver that inherently requires guest state, anyway. This fixes a break that can occur in some randconfig builds. Signed-off-by: Timur Tabi Signed-off-by: Kumar Gala --- drivers/virt/fsl_hypervisor.c | 3 --- 1 file changed, 3 deletions(-) (limited to 'drivers') diff --git a/drivers/virt/fsl_hypervisor.c b/drivers/virt/fsl_hypervisor.c index 4939e0ccc4e..d294f67d6f8 100644 --- a/drivers/virt/fsl_hypervisor.c +++ b/drivers/virt/fsl_hypervisor.c @@ -796,9 +796,6 @@ static int has_fsl_hypervisor(void) struct device_node *node; int ret; - if (!(mfmsr() & MSR_GS)) - return 0; - node = of_find_node_by_path("/hypervisor"); if (!node) return 0; -- cgit v1.2.3 From 1a9bd45412665e73c72612b6f744378d860e02a8 Mon Sep 17 00:00:00 2001 From: Nathan Fontenot Date: Wed, 28 Nov 2012 09:42:26 +0000 Subject: powerpc+of: Export of_reconfig_notifier_[register,unregister] The of reconfiguration notification chains should be exported for use by modules. Signed-off-by:Nathan Fontenot Signed-off-by: Benjamin Herrenschmidt --- drivers/of/base.c | 2 ++ 1 file changed, 2 insertions(+) (limited to 'drivers') diff --git a/drivers/of/base.c b/drivers/of/base.c index 02d94c4ea83..fa40402fe8d 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -1197,11 +1197,13 @@ int of_reconfig_notifier_register(struct notifier_block *nb) { return blocking_notifier_chain_register(&of_reconfig_chain, nb); } +EXPORT_SYMBOL_GPL(of_reconfig_notifier_register); int of_reconfig_notifier_unregister(struct notifier_block *nb) { return blocking_notifier_chain_unregister(&of_reconfig_chain, nb); } +EXPORT_SYMBOL_GPL(of_reconfig_notifier_unregister); int of_reconfig_notify(unsigned long action, void *p) { -- cgit v1.2.3