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-rw-r--r--Documentation/driver-model/driver.txt4
-rw-r--r--Documentation/filesystems/sysfs.txt12
-rw-r--r--Documentation/sound/alsa/HD-Audio-Models.txt1
-rw-r--r--Documentation/stable_kernel_rules.txt24
-rw-r--r--drivers/base/bus.c2
-rw-r--r--drivers/base/core.c16
-rw-r--r--drivers/base/devtmpfs.c19
-rw-r--r--drivers/base/driver.c4
-rw-r--r--drivers/base/platform.c1
-rw-r--r--drivers/staging/Kconfig4
-rw-r--r--drivers/staging/Makefile2
-rw-r--r--drivers/staging/batman-adv/Kconfig1
-rw-r--r--drivers/staging/batman-adv/send.c4
-rw-r--r--drivers/staging/comedi/comedi.h2
-rw-r--r--drivers/staging/comedi/drivers/jr3_pci.c7
-rw-r--r--drivers/staging/comedi/drivers/usbdux.c5
-rw-r--r--drivers/staging/dst/Kconfig67
-rw-r--r--drivers/staging/dst/Makefile3
-rw-r--r--drivers/staging/dst/crypto.c733
-rw-r--r--drivers/staging/dst/dcore.c968
-rw-r--r--drivers/staging/dst/export.c660
-rw-r--r--drivers/staging/dst/state.c844
-rw-r--r--drivers/staging/dst/thread_pool.c348
-rw-r--r--drivers/staging/dst/trans.c337
-rw-r--r--drivers/staging/panel/Kconfig2
-rw-r--r--drivers/staging/panel/panel.c2
-rw-r--r--drivers/staging/ramzswap/TODO1
-rw-r--r--drivers/staging/ramzswap/ramzswap_drv.c28
-rw-r--r--drivers/staging/rtl8187se/ieee80211/ieee80211.h10
-rw-r--r--drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c2
-rw-r--r--drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c14
-rw-r--r--drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c2
-rw-r--r--drivers/staging/rtl8187se/r8180_core.c10
-rw-r--r--drivers/staging/rtl8187se/r8180_wx.c2
-rw-r--r--drivers/staging/rtl8192e/ieee80211.h12
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211.h12
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211_module.c10
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c2
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c24
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211_tx.c2
-rw-r--r--drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c2
-rw-r--r--drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c6
-rw-r--r--drivers/staging/rtl8192e/r8192E_core.c14
-rw-r--r--drivers/staging/rtl8192su/ieee80211/ieee80211.h8
-rw-r--r--drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c6
-rw-r--r--drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c16
-rw-r--r--drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c2
-rw-r--r--drivers/staging/rtl8192su/r8192U_core.c10
-rw-r--r--drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c2
-rw-r--r--drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c6
-rw-r--r--drivers/staging/sm7xx/Kconfig15
-rw-r--r--drivers/staging/sm7xx/Makefile3
-rw-r--r--drivers/staging/sm7xx/TODO10
-rw-r--r--drivers/staging/sm7xx/smtc2d.c979
-rw-r--r--drivers/staging/sm7xx/smtc2d.h530
-rw-r--r--drivers/staging/sm7xx/smtcfb.c1253
-rw-r--r--drivers/staging/sm7xx/smtcfb.h793
-rw-r--r--drivers/staging/vt6655/Kconfig2
-rw-r--r--drivers/staging/vt6656/Kconfig2
-rw-r--r--drivers/staging/wlan-ng/prism2fw.c2
-rw-r--r--fs/ext3/inode.c8
-rw-r--r--fs/ext3/namei.c28
-rw-r--r--fs/ext3/resize.c35
-rw-r--r--fs/ext3/super.c19
-rw-r--r--fs/ext4/ext4.h6
-rw-r--r--fs/ext4/inode.c36
-rw-r--r--fs/ext4/mballoc.c6
-rw-r--r--fs/ext4/super.c5
-rw-r--r--fs/jbd/journal.c2
-rw-r--r--fs/jbd2/journal.c3
-rw-r--r--fs/ocfs2/alloc.c10
-rw-r--r--fs/ocfs2/alloc.h5
-rw-r--r--fs/ocfs2/namei.c5
-rw-r--r--fs/ocfs2/refcounttree.c150
-rw-r--r--fs/quota/dquot.c288
-rw-r--r--fs/quota/quota_v2.c9
-rw-r--r--fs/stat.c10
-rw-r--r--fs/super.c3
-rw-r--r--fs/sysfs/bin.c6
-rw-r--r--include/linux/device.h12
-rw-r--r--include/linux/dst.h587
-rw-r--r--include/linux/ext3_fs_sb.h2
-rw-r--r--include/linux/ext3_jbd.h7
-rw-r--r--include/linux/fs.h1
-rw-r--r--include/linux/kfifo.h31
-rw-r--r--include/linux/quota.h5
-rw-r--r--include/linux/sysfs.h9
-rw-r--r--kernel/sched.c9
-rw-r--r--sound/core/Kconfig1
-rw-r--r--sound/core/pcm_timer.c17
-rw-r--r--sound/pci/hda/hda_codec.c10
-rw-r--r--sound/pci/hda/hda_intel.c1
-rw-r--r--sound/pci/hda/patch_cirrus.c22
-rw-r--r--sound/pci/hda/patch_sigmatel.c22
-rw-r--r--sound/soc/codecs/wm9712.c3
-rw-r--r--sound/soc/imx/mx27vis_wm8974.c3
-rw-r--r--sound/soc/sh/fsi.c2
97 files changed, 4219 insertions, 5023 deletions
diff --git a/Documentation/driver-model/driver.txt b/Documentation/driver-model/driver.txt
index 60120fb3b961..d2cd6fb8ba9e 100644
--- a/Documentation/driver-model/driver.txt
+++ b/Documentation/driver-model/driver.txt
@@ -226,5 +226,5 @@ struct driver_attribute driver_attr_debug;
226This can then be used to add and remove the attribute from the 226This can then be used to add and remove the attribute from the
227driver's directory using: 227driver's directory using:
228 228
229int driver_create_file(struct device_driver *, struct driver_attribute *); 229int driver_create_file(struct device_driver *, const struct driver_attribute *);
230void driver_remove_file(struct device_driver *, struct driver_attribute *); 230void driver_remove_file(struct device_driver *, const struct driver_attribute *);
diff --git a/Documentation/filesystems/sysfs.txt b/Documentation/filesystems/sysfs.txt
index b245d524d568..931c806642c5 100644
--- a/Documentation/filesystems/sysfs.txt
+++ b/Documentation/filesystems/sysfs.txt
@@ -91,8 +91,8 @@ struct device_attribute {
91 const char *buf, size_t count); 91 const char *buf, size_t count);
92}; 92};
93 93
94int device_create_file(struct device *, struct device_attribute *); 94int device_create_file(struct device *, const struct device_attribute *);
95void device_remove_file(struct device *, struct device_attribute *); 95void device_remove_file(struct device *, const struct device_attribute *);
96 96
97It also defines this helper for defining device attributes: 97It also defines this helper for defining device attributes:
98 98
@@ -316,8 +316,8 @@ DEVICE_ATTR(_name, _mode, _show, _store);
316 316
317Creation/Removal: 317Creation/Removal:
318 318
319int device_create_file(struct device *device, struct device_attribute * attr); 319int device_create_file(struct device *dev, const struct device_attribute * attr);
320void device_remove_file(struct device * dev, struct device_attribute * attr); 320void device_remove_file(struct device *dev, const struct device_attribute * attr);
321 321
322 322
323- bus drivers (include/linux/device.h) 323- bus drivers (include/linux/device.h)
@@ -358,7 +358,7 @@ DRIVER_ATTR(_name, _mode, _show, _store)
358 358
359Creation/Removal: 359Creation/Removal:
360 360
361int driver_create_file(struct device_driver *, struct driver_attribute *); 361int driver_create_file(struct device_driver *, const struct driver_attribute *);
362void driver_remove_file(struct device_driver *, struct driver_attribute *); 362void driver_remove_file(struct device_driver *, const struct driver_attribute *);
363 363
364 364
diff --git a/Documentation/sound/alsa/HD-Audio-Models.txt b/Documentation/sound/alsa/HD-Audio-Models.txt
index e93affff3af8..e72cee9e2a71 100644
--- a/Documentation/sound/alsa/HD-Audio-Models.txt
+++ b/Documentation/sound/alsa/HD-Audio-Models.txt
@@ -403,4 +403,5 @@ STAC9872
403Cirrus Logic CS4206/4207 403Cirrus Logic CS4206/4207
404======================== 404========================
405 mbp55 MacBook Pro 5,5 405 mbp55 MacBook Pro 5,5
406 imac27 IMac 27 Inch
406 auto BIOS setup (default) 407 auto BIOS setup (default)
diff --git a/Documentation/stable_kernel_rules.txt b/Documentation/stable_kernel_rules.txt
index a452227361b1..5effa5bd993b 100644
--- a/Documentation/stable_kernel_rules.txt
+++ b/Documentation/stable_kernel_rules.txt
@@ -26,13 +26,33 @@ Procedure for submitting patches to the -stable tree:
26 26
27 - Send the patch, after verifying that it follows the above rules, to 27 - Send the patch, after verifying that it follows the above rules, to
28 stable@kernel.org. 28 stable@kernel.org.
29 - To have the patch automatically included in the stable tree, add the
30 the tag
31 Cc: stable@kernel.org
32 in the sign-off area. Once the patch is merged it will be applied to
33 the stable tree without anything else needing to be done by the author
34 or subsystem maintainer.
35 - If the patch requires other patches as prerequisites which can be
36 cherry-picked than this can be specified in the following format in
37 the sign-off area:
38
39 Cc: <stable@kernel.org> # .32.x: a1f84a3: sched: Check for idle
40 Cc: <stable@kernel.org> # .32.x: 1b9508f: sched: Rate-limit newidle
41 Cc: <stable@kernel.org> # .32.x: fd21073: sched: Fix affinity logic
42 Cc: <stable@kernel.org> # .32.x
43 Signed-off-by: Ingo Molnar <mingo@elte.hu>
44
45 The tag sequence has the meaning of:
46 git cherry-pick a1f84a3
47 git cherry-pick 1b9508f
48 git cherry-pick fd21073
49 git cherry-pick <this commit>
50
29 - The sender will receive an ACK when the patch has been accepted into the 51 - The sender will receive an ACK when the patch has been accepted into the
30 queue, or a NAK if the patch is rejected. This response might take a few 52 queue, or a NAK if the patch is rejected. This response might take a few
31 days, according to the developer's schedules. 53 days, according to the developer's schedules.
32 - If accepted, the patch will be added to the -stable queue, for review by 54 - If accepted, the patch will be added to the -stable queue, for review by
33 other developers and by the relevant subsystem maintainer. 55 other developers and by the relevant subsystem maintainer.
34 - If the stable@kernel.org address is added to a patch, when it goes into
35 Linus's tree it will automatically be emailed to the stable team.
36 - Security patches should not be sent to this alias, but instead to the 56 - Security patches should not be sent to this alias, but instead to the
37 documented security@kernel.org address. 57 documented security@kernel.org address.
38 58
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index 63c143e54a57..c0c5a43d9fb3 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -703,9 +703,9 @@ int bus_add_driver(struct device_driver *drv)
703 return 0; 703 return 0;
704 704
705out_unregister: 705out_unregister:
706 kobject_put(&priv->kobj);
706 kfree(drv->p); 707 kfree(drv->p);
707 drv->p = NULL; 708 drv->p = NULL;
708 kobject_put(&priv->kobj);
709out_put_bus: 709out_put_bus:
710 bus_put(bus); 710 bus_put(bus);
711 return error; 711 return error;
diff --git a/drivers/base/core.c b/drivers/base/core.c
index f1290cbd1350..282025770429 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -446,7 +446,8 @@ struct kset *devices_kset;
446 * @dev: device. 446 * @dev: device.
447 * @attr: device attribute descriptor. 447 * @attr: device attribute descriptor.
448 */ 448 */
449int device_create_file(struct device *dev, struct device_attribute *attr) 449int device_create_file(struct device *dev,
450 const struct device_attribute *attr)
450{ 451{
451 int error = 0; 452 int error = 0;
452 if (dev) 453 if (dev)
@@ -459,7 +460,8 @@ int device_create_file(struct device *dev, struct device_attribute *attr)
459 * @dev: device. 460 * @dev: device.
460 * @attr: device attribute descriptor. 461 * @attr: device attribute descriptor.
461 */ 462 */
462void device_remove_file(struct device *dev, struct device_attribute *attr) 463void device_remove_file(struct device *dev,
464 const struct device_attribute *attr)
463{ 465{
464 if (dev) 466 if (dev)
465 sysfs_remove_file(&dev->kobj, &attr->attr); 467 sysfs_remove_file(&dev->kobj, &attr->attr);
@@ -470,7 +472,8 @@ void device_remove_file(struct device *dev, struct device_attribute *attr)
470 * @dev: device. 472 * @dev: device.
471 * @attr: device binary attribute descriptor. 473 * @attr: device binary attribute descriptor.
472 */ 474 */
473int device_create_bin_file(struct device *dev, struct bin_attribute *attr) 475int device_create_bin_file(struct device *dev,
476 const struct bin_attribute *attr)
474{ 477{
475 int error = -EINVAL; 478 int error = -EINVAL;
476 if (dev) 479 if (dev)
@@ -484,7 +487,8 @@ EXPORT_SYMBOL_GPL(device_create_bin_file);
484 * @dev: device. 487 * @dev: device.
485 * @attr: device binary attribute descriptor. 488 * @attr: device binary attribute descriptor.
486 */ 489 */
487void device_remove_bin_file(struct device *dev, struct bin_attribute *attr) 490void device_remove_bin_file(struct device *dev,
491 const struct bin_attribute *attr)
488{ 492{
489 if (dev) 493 if (dev)
490 sysfs_remove_bin_file(&dev->kobj, attr); 494 sysfs_remove_bin_file(&dev->kobj, attr);
@@ -905,8 +909,10 @@ int device_add(struct device *dev)
905 dev->init_name = NULL; 909 dev->init_name = NULL;
906 } 910 }
907 911
908 if (!dev_name(dev)) 912 if (!dev_name(dev)) {
913 error = -EINVAL;
909 goto name_error; 914 goto name_error;
915 }
910 916
911 pr_debug("device: '%s': %s\n", dev_name(dev), __func__); 917 pr_debug("device: '%s': %s\n", dev_name(dev), __func__);
912 918
diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c
index 50375bb8e51d..090dd4851301 100644
--- a/drivers/base/devtmpfs.c
+++ b/drivers/base/devtmpfs.c
@@ -32,7 +32,7 @@ static int dev_mount = 1;
32static int dev_mount; 32static int dev_mount;
33#endif 33#endif
34 34
35static rwlock_t dirlock; 35static DEFINE_MUTEX(dirlock);
36 36
37static int __init mount_param(char *str) 37static int __init mount_param(char *str)
38{ 38{
@@ -93,7 +93,7 @@ static int create_path(const char *nodepath)
93{ 93{
94 int err; 94 int err;
95 95
96 read_lock(&dirlock); 96 mutex_lock(&dirlock);
97 err = dev_mkdir(nodepath, 0755); 97 err = dev_mkdir(nodepath, 0755);
98 if (err == -ENOENT) { 98 if (err == -ENOENT) {
99 char *path; 99 char *path;
@@ -101,8 +101,10 @@ static int create_path(const char *nodepath)
101 101
102 /* parent directories do not exist, create them */ 102 /* parent directories do not exist, create them */
103 path = kstrdup(nodepath, GFP_KERNEL); 103 path = kstrdup(nodepath, GFP_KERNEL);
104 if (!path) 104 if (!path) {
105 return -ENOMEM; 105 err = -ENOMEM;
106 goto out;
107 }
106 s = path; 108 s = path;
107 for (;;) { 109 for (;;) {
108 s = strchr(s, '/'); 110 s = strchr(s, '/');
@@ -117,7 +119,8 @@ static int create_path(const char *nodepath)
117 } 119 }
118 kfree(path); 120 kfree(path);
119 } 121 }
120 read_unlock(&dirlock); 122out:
123 mutex_unlock(&dirlock);
121 return err; 124 return err;
122} 125}
123 126
@@ -229,7 +232,7 @@ static int delete_path(const char *nodepath)
229 if (!path) 232 if (!path)
230 return -ENOMEM; 233 return -ENOMEM;
231 234
232 write_lock(&dirlock); 235 mutex_lock(&dirlock);
233 for (;;) { 236 for (;;) {
234 char *base; 237 char *base;
235 238
@@ -241,7 +244,7 @@ static int delete_path(const char *nodepath)
241 if (err) 244 if (err)
242 break; 245 break;
243 } 246 }
244 write_unlock(&dirlock); 247 mutex_unlock(&dirlock);
245 248
246 kfree(path); 249 kfree(path);
247 return err; 250 return err;
@@ -352,8 +355,6 @@ int __init devtmpfs_init(void)
352 int err; 355 int err;
353 struct vfsmount *mnt; 356 struct vfsmount *mnt;
354 357
355 rwlock_init(&dirlock);
356
357 err = register_filesystem(&dev_fs_type); 358 err = register_filesystem(&dev_fs_type);
358 if (err) { 359 if (err) {
359 printk(KERN_ERR "devtmpfs: unable to register devtmpfs " 360 printk(KERN_ERR "devtmpfs: unable to register devtmpfs "
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index f367885a7646..90c9fff09ead 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -98,7 +98,7 @@ EXPORT_SYMBOL_GPL(driver_find_device);
98 * @attr: driver attribute descriptor. 98 * @attr: driver attribute descriptor.
99 */ 99 */
100int driver_create_file(struct device_driver *drv, 100int driver_create_file(struct device_driver *drv,
101 struct driver_attribute *attr) 101 const struct driver_attribute *attr)
102{ 102{
103 int error; 103 int error;
104 if (drv) 104 if (drv)
@@ -115,7 +115,7 @@ EXPORT_SYMBOL_GPL(driver_create_file);
115 * @attr: driver attribute descriptor. 115 * @attr: driver attribute descriptor.
116 */ 116 */
117void driver_remove_file(struct device_driver *drv, 117void driver_remove_file(struct device_driver *drv,
118 struct driver_attribute *attr) 118 const struct driver_attribute *attr)
119{ 119{
120 if (drv) 120 if (drv)
121 sysfs_remove_file(&drv->p->kobj, &attr->attr); 121 sysfs_remove_file(&drv->p->kobj, &attr->attr);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 9d2ee25deaf5..58efaf2f1259 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -441,6 +441,7 @@ error:
441 platform_device_put(pdev); 441 platform_device_put(pdev);
442 return ERR_PTR(retval); 442 return ERR_PTR(retval);
443} 443}
444EXPORT_SYMBOL_GPL(platform_device_register_data);
444 445
445static int platform_drv_probe(struct device *_dev) 446static int platform_drv_probe(struct device *_dev)
446{ 447{
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 093f57af32d3..94eb86319ff3 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -87,8 +87,6 @@ source "drivers/staging/frontier/Kconfig"
87 87
88source "drivers/staging/dream/Kconfig" 88source "drivers/staging/dream/Kconfig"
89 89
90source "drivers/staging/dst/Kconfig"
91
92source "drivers/staging/pohmelfs/Kconfig" 90source "drivers/staging/pohmelfs/Kconfig"
93 91
94source "drivers/staging/b3dfg/Kconfig" 92source "drivers/staging/b3dfg/Kconfig"
@@ -145,5 +143,7 @@ source "drivers/staging/wavelan/Kconfig"
145 143
146source "drivers/staging/netwave/Kconfig" 144source "drivers/staging/netwave/Kconfig"
147 145
146source "drivers/staging/sm7xx/Kconfig"
147
148endif # !STAGING_EXCLUDE_BUILD 148endif # !STAGING_EXCLUDE_BUILD
149endif # STAGING 149endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index 069864f4391e..b5e67b889f60 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -26,7 +26,6 @@ obj-$(CONFIG_RTL8192E) += rtl8192e/
26obj-$(CONFIG_INPUT_MIMIO) += mimio/ 26obj-$(CONFIG_INPUT_MIMIO) += mimio/
27obj-$(CONFIG_TRANZPORT) += frontier/ 27obj-$(CONFIG_TRANZPORT) += frontier/
28obj-$(CONFIG_DREAM) += dream/ 28obj-$(CONFIG_DREAM) += dream/
29obj-$(CONFIG_DST) += dst/
30obj-$(CONFIG_POHMELFS) += pohmelfs/ 29obj-$(CONFIG_POHMELFS) += pohmelfs/
31obj-$(CONFIG_B3DFG) += b3dfg/ 30obj-$(CONFIG_B3DFG) += b3dfg/
32obj-$(CONFIG_IDE_PHISON) += phison/ 31obj-$(CONFIG_IDE_PHISON) += phison/
@@ -53,3 +52,4 @@ obj-$(CONFIG_ARLAN) += arlan/
53obj-$(CONFIG_WAVELAN) += wavelan/ 52obj-$(CONFIG_WAVELAN) += wavelan/
54obj-$(CONFIG_PCMCIA_WAVELAN) += wavelan/ 53obj-$(CONFIG_PCMCIA_WAVELAN) += wavelan/
55obj-$(CONFIG_PCMCIA_NETWAVE) += netwave/ 54obj-$(CONFIG_PCMCIA_NETWAVE) += netwave/
55obj-$(CONFIG_FB_SM7XX) += sm7xx/
diff --git a/drivers/staging/batman-adv/Kconfig b/drivers/staging/batman-adv/Kconfig
index 7632f5760060..1d74dabf9511 100644
--- a/drivers/staging/batman-adv/Kconfig
+++ b/drivers/staging/batman-adv/Kconfig
@@ -4,6 +4,7 @@
4 4
5config BATMAN_ADV 5config BATMAN_ADV
6 tristate "B.A.T.M.A.N. Advanced Meshing Protocol" 6 tristate "B.A.T.M.A.N. Advanced Meshing Protocol"
7 depends on PROC_FS && PACKET
7 default n 8 default n
8 ---help--- 9 ---help---
9 10
diff --git a/drivers/staging/batman-adv/send.c b/drivers/staging/batman-adv/send.c
index d724798278d6..eb617508cca4 100644
--- a/drivers/staging/batman-adv/send.c
+++ b/drivers/staging/batman-adv/send.c
@@ -363,8 +363,10 @@ void add_bcast_packet_to_list(unsigned char *packet_buff, int packet_len)
363 return; 363 return;
364 364
365 forw_packet->packet_buff = kmalloc(packet_len, GFP_ATOMIC); 365 forw_packet->packet_buff = kmalloc(packet_len, GFP_ATOMIC);
366 if (!forw_packet->packet_buff) 366 if (!forw_packet->packet_buff) {
367 kfree(forw_packet);
367 return; 368 return;
369 }
368 370
369 forw_packet->packet_len = packet_len; 371 forw_packet->packet_len = packet_len;
370 memcpy(forw_packet->packet_buff, packet_buff, forw_packet->packet_len); 372 memcpy(forw_packet->packet_buff, packet_buff, forw_packet->packet_len);
diff --git a/drivers/staging/comedi/comedi.h b/drivers/staging/comedi/comedi.h
index ccc5cdc008c6..b559a9c2f857 100644
--- a/drivers/staging/comedi/comedi.h
+++ b/drivers/staging/comedi/comedi.h
@@ -451,7 +451,7 @@
451 451
452#define COMEDI_CB_EOS 1 /* end of scan */ 452#define COMEDI_CB_EOS 1 /* end of scan */
453#define COMEDI_CB_EOA 2 /* end of acquisition */ 453#define COMEDI_CB_EOA 2 /* end of acquisition */
454#define COMEDI_CB_BLOCK 4 /* DEPRECATED: convenient block size */ 454#define COMEDI_CB_BLOCK 4 /* data has arrived: wakes up read() / write() */
455#define COMEDI_CB_EOBUF 8 /* DEPRECATED: end of buffer */ 455#define COMEDI_CB_EOBUF 8 /* DEPRECATED: end of buffer */
456#define COMEDI_CB_ERROR 16 /* card error during acquisition */ 456#define COMEDI_CB_ERROR 16 /* card error during acquisition */
457#define COMEDI_CB_OVERFLOW 32 /* buffer overflow/underflow */ 457#define COMEDI_CB_OVERFLOW 32 /* buffer overflow/underflow */
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 0d2c2eb23b23..bd397840dcba 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -849,8 +849,11 @@ static int jr3_pci_attach(struct comedi_device *dev,
849 } 849 }
850 850
851 devpriv->pci_enabled = 1; 851 devpriv->pci_enabled = 1;
852 devpriv->iobase = 852 devpriv->iobase = ioremap(pci_resource_start(card, 0),
853 ioremap(pci_resource_start(card, 0), sizeof(struct jr3_t)); 853 offsetof(struct jr3_t, channel[devpriv->n_channels]));
854 if (!devpriv->iobase)
855 return -ENOMEM;
856
854 result = alloc_subdevices(dev, devpriv->n_channels); 857 result = alloc_subdevices(dev, devpriv->n_channels);
855 if (result < 0) 858 if (result < 0)
856 goto out; 859 goto out;
diff --git a/drivers/staging/comedi/drivers/usbdux.c b/drivers/staging/comedi/drivers/usbdux.c
index 06c020466298..9a1b559c4b0d 100644
--- a/drivers/staging/comedi/drivers/usbdux.c
+++ b/drivers/staging/comedi/drivers/usbdux.c
@@ -1,4 +1,4 @@
1#define DRIVER_VERSION "v2.3" 1#define DRIVER_VERSION "v2.4"
2#define DRIVER_AUTHOR "Bernd Porr, BerndPorr@f2s.com" 2#define DRIVER_AUTHOR "Bernd Porr, BerndPorr@f2s.com"
3#define DRIVER_DESC "Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com" 3#define DRIVER_DESC "Stirling/ITL USB-DUX -- Bernd.Porr@f2s.com"
4/* 4/*
@@ -81,6 +81,8 @@ sampling rate. If you sample two channels you get 4kHz and so on.
81 * 2.1: changed PWM API 81 * 2.1: changed PWM API
82 * 2.2: added firmware kernel request to fix an udev problem 82 * 2.2: added firmware kernel request to fix an udev problem
83 * 2.3: corrected a bug in bulk timeouts which were far too short 83 * 2.3: corrected a bug in bulk timeouts which were far too short
84 * 2.4: fixed a bug which causes the driver to hang when it ran out of data.
85 * Thanks to Jan-Matthias Braun and Ian to spot the bug and fix it.
84 * 86 *
85 */ 87 */
86 88
@@ -532,6 +534,7 @@ static void usbduxsub_ai_IsocIrq(struct urb *urb)
532 } 534 }
533 } 535 }
534 /* tell comedi that data is there */ 536 /* tell comedi that data is there */
537 s->async->events |= COMEDI_CB_BLOCK | COMEDI_CB_EOS;
535 comedi_event(this_usbduxsub->comedidev, s); 538 comedi_event(this_usbduxsub->comedidev, s);
536} 539}
537 540
diff --git a/drivers/staging/dst/Kconfig b/drivers/staging/dst/Kconfig
deleted file mode 100644
index 448d342ac2a2..000000000000
--- a/drivers/staging/dst/Kconfig
+++ /dev/null
@@ -1,67 +0,0 @@
1config DST
2 tristate "Distributed storage"
3 depends on NET && CRYPTO && SYSFS && BLK_DEV
4 select CONNECTOR
5 ---help---
6 DST is a network block device storage, which can be used to organize
7 exported storage on the remote nodes into the local block device.
8
9 DST works on top of any network media and protocol; it is just a matter
10 of configuration utility to understand the correct addresses. The most
11 common example is TCP over IP, which allows to pass through firewalls and
12 create remote backup storage in a different datacenter. DST requires
13 single port to be enabled on the exporting node and outgoing connections
14 on the local node.
15
16 DST works with in-kernel client and server, which improves performance by
17 eliminating unneded data copies and by not depending on the version
18 of the external IO components. It requires userspace configuration utility
19 though.
20
21 DST uses transaction model, when each store has to be explicitly acked
22 from the remote node to be considered as successfully written. There
23 may be lots of in-flight transactions. When remote host does not ack
24 the transaction it will be resent predefined number of times with specified
25 timeouts between them. All those parameters are configurable. Transactions
26 are marked as failed after all resends complete unsuccessfully; having
27 long enough resend timeout and/or large number of resends allows not to
28 return error to the higher (FS usually) layer in case of short network
29 problems or remote node outages. In case of network RAID setup this means
30 that storage will not degrade until transactions are marked as failed, and
31 thus will not force checksum recalculation and data rebuild. In case of
32 connection failure DST will try to reconnect to the remote node automatically.
33 DST sends ping commands at idle time to detect if remote node is alive.
34
35 Because of transactional model it is possible to use zero-copy sending
36 without worry of data corruption (which in turn could be detected by the
37 strong checksums though).
38
39 DST may fully encrypt the data channel in case of untrusted channel and implement
40 strong checksum of the transferred data. It is possible to configure algorithms
41 and crypto keys; they should match on both sides of the network channel.
42 Crypto processing does not introduce noticeble performance overhead, since DST
43 uses configurable pool of threads to perform crypto processing.
44
45 DST utilizes memory pool model of all its transaction allocations (it is the
46 only additional allocation on the client) and server allocations (bio pools,
47 while pages are allocated from the slab).
48
49 At startup DST performs a simple negotiation with the export node to determine
50 access permissions and size of the exported storage. It can be extended if
51 new parameters should be autonegotiated.
52
53 DST carries block IO flags in the protocol, which allows to transparently implement
54 barriers and sync/flush operations. Those flags are used in the export node where
55 IO against the local storage is performed, which means that sync write will be sync
56 on the remote node too, which in turn improves data integrity and improved resistance
57 to errors and data corruption during power outages or storage damages.
58
59 Homepage: http://www.ioremap.net/projects/dst
60 Userspace configuration utility and the latest releases: http://www.ioremap.net/archive/dst/
61
62config DST_DEBUG
63 bool "DST debug"
64 depends on DST
65 ---help---
66 This option will enable HEAVY debugging of the DST.
67 Turn it on ONLY if you have to debug some really obscure problem.
diff --git a/drivers/staging/dst/Makefile b/drivers/staging/dst/Makefile
deleted file mode 100644
index 3a8b0cf9643e..000000000000
--- a/drivers/staging/dst/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
1obj-$(CONFIG_DST) += nst.o
2
3nst-y := dcore.o state.o export.o thread_pool.o crypto.o trans.o
diff --git a/drivers/staging/dst/crypto.c b/drivers/staging/dst/crypto.c
deleted file mode 100644
index 351295c97a4b..000000000000
--- a/drivers/staging/dst/crypto.c
+++ /dev/null
@@ -1,733 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/bio.h>
17#include <linux/crypto.h>
18#include <linux/dst.h>
19#include <linux/kernel.h>
20#include <linux/scatterlist.h>
21#include <linux/slab.h>
22
23/*
24 * Tricky bastard, but IV can be more complex with time...
25 */
26static inline u64 dst_gen_iv(struct dst_trans *t)
27{
28 return t->gen;
29}
30
31/*
32 * Crypto machinery: hash/cipher support for the given crypto controls.
33 */
34static struct crypto_hash *dst_init_hash(struct dst_crypto_ctl *ctl, u8 *key)
35{
36 int err;
37 struct crypto_hash *hash;
38
39 hash = crypto_alloc_hash(ctl->hash_algo, 0, CRYPTO_ALG_ASYNC);
40 if (IS_ERR(hash)) {
41 err = PTR_ERR(hash);
42 dprintk("%s: failed to allocate hash '%s', err: %d.\n",
43 __func__, ctl->hash_algo, err);
44 goto err_out_exit;
45 }
46
47 ctl->crypto_attached_size = crypto_hash_digestsize(hash);
48
49 if (!ctl->hash_keysize)
50 return hash;
51
52 err = crypto_hash_setkey(hash, key, ctl->hash_keysize);
53 if (err) {
54 dprintk("%s: failed to set key for hash '%s', err: %d.\n",
55 __func__, ctl->hash_algo, err);
56 goto err_out_free;
57 }
58
59 return hash;
60
61err_out_free:
62 crypto_free_hash(hash);
63err_out_exit:
64 return ERR_PTR(err);
65}
66
67static struct crypto_ablkcipher *dst_init_cipher(struct dst_crypto_ctl *ctl,
68 u8 *key)
69{
70 int err = -EINVAL;
71 struct crypto_ablkcipher *cipher;
72
73 if (!ctl->cipher_keysize)
74 goto err_out_exit;
75
76 cipher = crypto_alloc_ablkcipher(ctl->cipher_algo, 0, 0);
77 if (IS_ERR(cipher)) {
78 err = PTR_ERR(cipher);
79 dprintk("%s: failed to allocate cipher '%s', err: %d.\n",
80 __func__, ctl->cipher_algo, err);
81 goto err_out_exit;
82 }
83
84 crypto_ablkcipher_clear_flags(cipher, ~0);
85
86 err = crypto_ablkcipher_setkey(cipher, key, ctl->cipher_keysize);
87 if (err) {
88 dprintk("%s: failed to set key for cipher '%s', err: %d.\n",
89 __func__, ctl->cipher_algo, err);
90 goto err_out_free;
91 }
92
93 return cipher;
94
95err_out_free:
96 crypto_free_ablkcipher(cipher);
97err_out_exit:
98 return ERR_PTR(err);
99}
100
101/*
102 * Crypto engine has a pool of pages to encrypt data into before sending
103 * it over the network. This pool is freed/allocated here.
104 */
105static void dst_crypto_pages_free(struct dst_crypto_engine *e)
106{
107 unsigned int i;
108
109 for (i = 0; i < e->page_num; ++i)
110 __free_page(e->pages[i]);
111 kfree(e->pages);
112}
113
114static int dst_crypto_pages_alloc(struct dst_crypto_engine *e, int num)
115{
116 int i;
117
118 e->pages = kmalloc(num * sizeof(struct page **), GFP_KERNEL);
119 if (!e->pages)
120 return -ENOMEM;
121
122 for (i = 0; i < num; ++i) {
123 e->pages[i] = alloc_page(GFP_KERNEL);
124 if (!e->pages[i])
125 goto err_out_free_pages;
126 }
127
128 e->page_num = num;
129 return 0;
130
131err_out_free_pages:
132 while (--i >= 0)
133 __free_page(e->pages[i]);
134
135 kfree(e->pages);
136 return -ENOMEM;
137}
138
139/*
140 * Initialize crypto engine for given node.
141 * Setup cipher/hash, keys, pool of threads and private data.
142 */
143static int dst_crypto_engine_init(struct dst_crypto_engine *e,
144 struct dst_node *n)
145{
146 int err;
147 struct dst_crypto_ctl *ctl = &n->crypto;
148
149 err = dst_crypto_pages_alloc(e, n->max_pages);
150 if (err)
151 goto err_out_exit;
152
153 e->size = PAGE_SIZE;
154 e->data = kmalloc(e->size, GFP_KERNEL);
155 if (!e->data) {
156 err = -ENOMEM;
157 goto err_out_free_pages;
158 }
159
160 if (ctl->hash_algo[0]) {
161 e->hash = dst_init_hash(ctl, n->hash_key);
162 if (IS_ERR(e->hash)) {
163 err = PTR_ERR(e->hash);
164 e->hash = NULL;
165 goto err_out_free;
166 }
167 }
168
169 if (ctl->cipher_algo[0]) {
170 e->cipher = dst_init_cipher(ctl, n->cipher_key);
171 if (IS_ERR(e->cipher)) {
172 err = PTR_ERR(e->cipher);
173 e->cipher = NULL;
174 goto err_out_free_hash;
175 }
176 }
177
178 return 0;
179
180err_out_free_hash:
181 crypto_free_hash(e->hash);
182err_out_free:
183 kfree(e->data);
184err_out_free_pages:
185 dst_crypto_pages_free(e);
186err_out_exit:
187 return err;
188}
189
190static void dst_crypto_engine_exit(struct dst_crypto_engine *e)
191{
192 if (e->hash)
193 crypto_free_hash(e->hash);
194 if (e->cipher)
195 crypto_free_ablkcipher(e->cipher);
196 dst_crypto_pages_free(e);
197 kfree(e->data);
198}
199
200/*
201 * Waiting for cipher processing to be completed.
202 */
203struct dst_crypto_completion {
204 struct completion complete;
205 int error;
206};
207
208static void dst_crypto_complete(struct crypto_async_request *req, int err)
209{
210 struct dst_crypto_completion *c = req->data;
211
212 if (err == -EINPROGRESS)
213 return;
214
215 dprintk("%s: req: %p, err: %d.\n", __func__, req, err);
216 c->error = err;
217 complete(&c->complete);
218}
219
220static int dst_crypto_process(struct ablkcipher_request *req,
221 struct scatterlist *sg_dst, struct scatterlist *sg_src,
222 void *iv, int enc, unsigned long timeout)
223{
224 struct dst_crypto_completion c;
225 int err;
226
227 init_completion(&c.complete);
228 c.error = -EINPROGRESS;
229
230 ablkcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
231 dst_crypto_complete, &c);
232
233 ablkcipher_request_set_crypt(req, sg_src, sg_dst, sg_src->length, iv);
234
235 if (enc)
236 err = crypto_ablkcipher_encrypt(req);
237 else
238 err = crypto_ablkcipher_decrypt(req);
239
240 switch (err) {
241 case -EINPROGRESS:
242 case -EBUSY:
243 err = wait_for_completion_interruptible_timeout(&c.complete,
244 timeout);
245 if (!err)
246 err = -ETIMEDOUT;
247 else
248 err = c.error;
249 break;
250 default:
251 break;
252 }
253
254 return err;
255}
256
257/*
258 * DST uses generic iteration approach for data crypto processing.
259 * Single block IO request is switched into array of scatterlists,
260 * which are submitted to the crypto processing iterator.
261 *
262 * Input and output iterator initialization are different, since
263 * in output case we can not encrypt data in-place and need a
264 * temporary storage, which is then being sent to the remote peer.
265 */
266static int dst_trans_iter_out(struct bio *bio, struct dst_crypto_engine *e,
267 int (*iterator) (struct dst_crypto_engine *e,
268 struct scatterlist *dst,
269 struct scatterlist *src))
270{
271 struct bio_vec *bv;
272 int err, i;
273
274 sg_init_table(e->src, bio->bi_vcnt);
275 sg_init_table(e->dst, bio->bi_vcnt);
276
277 bio_for_each_segment(bv, bio, i) {
278 sg_set_page(&e->src[i], bv->bv_page, bv->bv_len, bv->bv_offset);
279 sg_set_page(&e->dst[i], e->pages[i], bv->bv_len, bv->bv_offset);
280
281 err = iterator(e, &e->dst[i], &e->src[i]);
282 if (err)
283 return err;
284 }
285
286 return 0;
287}
288
289static int dst_trans_iter_in(struct bio *bio, struct dst_crypto_engine *e,
290 int (*iterator) (struct dst_crypto_engine *e,
291 struct scatterlist *dst,
292 struct scatterlist *src))
293{
294 struct bio_vec *bv;
295 int err, i;
296
297 sg_init_table(e->src, bio->bi_vcnt);
298 sg_init_table(e->dst, bio->bi_vcnt);
299
300 bio_for_each_segment(bv, bio, i) {
301 sg_set_page(&e->src[i], bv->bv_page, bv->bv_len, bv->bv_offset);
302 sg_set_page(&e->dst[i], bv->bv_page, bv->bv_len, bv->bv_offset);
303
304 err = iterator(e, &e->dst[i], &e->src[i]);
305 if (err)
306 return err;
307 }
308
309 return 0;
310}
311
312static int dst_crypt_iterator(struct dst_crypto_engine *e,
313 struct scatterlist *sg_dst, struct scatterlist *sg_src)
314{
315 struct ablkcipher_request *req = e->data;
316 u8 iv[32];
317
318 memset(iv, 0, sizeof(iv));
319
320 memcpy(iv, &e->iv, sizeof(e->iv));
321
322 return dst_crypto_process(req, sg_dst, sg_src, iv, e->enc, e->timeout);
323}
324
325static int dst_crypt(struct dst_crypto_engine *e, struct bio *bio)
326{
327 struct ablkcipher_request *req = e->data;
328
329 memset(req, 0, sizeof(struct ablkcipher_request));
330 ablkcipher_request_set_tfm(req, e->cipher);
331
332 if (e->enc)
333 return dst_trans_iter_out(bio, e, dst_crypt_iterator);
334 else
335 return dst_trans_iter_in(bio, e, dst_crypt_iterator);
336}
337
338static int dst_hash_iterator(struct dst_crypto_engine *e,
339 struct scatterlist *sg_dst, struct scatterlist *sg_src)
340{
341 return crypto_hash_update(e->data, sg_src, sg_src->length);
342}
343
344static int dst_hash(struct dst_crypto_engine *e, struct bio *bio, void *dst)
345{
346 struct hash_desc *desc = e->data;
347 int err;
348
349 desc->tfm = e->hash;
350 desc->flags = 0;
351
352 err = crypto_hash_init(desc);
353 if (err)
354 return err;
355
356 err = dst_trans_iter_in(bio, e, dst_hash_iterator);
357 if (err)
358 return err;
359
360 err = crypto_hash_final(desc, dst);
361 if (err)
362 return err;
363
364 return 0;
365}
366
367/*
368 * Initialize/cleanup a crypto thread. The only thing it should
369 * do is to allocate a pool of pages as temporary storage.
370 * And to setup cipher and/or hash.
371 */
372static void *dst_crypto_thread_init(void *data)
373{
374 struct dst_node *n = data;
375 struct dst_crypto_engine *e;
376 int err = -ENOMEM;
377
378 e = kzalloc(sizeof(struct dst_crypto_engine), GFP_KERNEL);
379 if (!e)
380 goto err_out_exit;
381 e->src = kcalloc(2 * n->max_pages, sizeof(struct scatterlist),
382 GFP_KERNEL);
383 if (!e->src)
384 goto err_out_free;
385
386 e->dst = e->src + n->max_pages;
387
388 err = dst_crypto_engine_init(e, n);
389 if (err)
390 goto err_out_free_all;
391
392 return e;
393
394err_out_free_all:
395 kfree(e->src);
396err_out_free:
397 kfree(e);
398err_out_exit:
399 return ERR_PTR(err);
400}
401
402static void dst_crypto_thread_cleanup(void *private)
403{
404 struct dst_crypto_engine *e = private;
405
406 dst_crypto_engine_exit(e);
407 kfree(e->src);
408 kfree(e);
409}
410
411/*
412 * Initialize crypto engine for given node: store keys, create pool
413 * of threads, initialize each one.
414 *
415 * Each thread has unique ID, but 0 and 1 are reserved for receiving and
416 * accepting threads (if export node), so IDs could start from 2, but starting
417 * them from 10 allows easily understand what this thread is for.
418 */
419int dst_node_crypto_init(struct dst_node *n, struct dst_crypto_ctl *ctl)
420{
421 void *key = (ctl + 1);
422 int err = -ENOMEM, i;
423 char name[32];
424
425 if (ctl->hash_keysize) {
426 n->hash_key = kmalloc(ctl->hash_keysize, GFP_KERNEL);
427 if (!n->hash_key)
428 goto err_out_exit;
429 memcpy(n->hash_key, key, ctl->hash_keysize);
430 }
431
432 if (ctl->cipher_keysize) {
433 n->cipher_key = kmalloc(ctl->cipher_keysize, GFP_KERNEL);
434 if (!n->cipher_key)
435 goto err_out_free_hash;
436 memcpy(n->cipher_key, key, ctl->cipher_keysize);
437 }
438 memcpy(&n->crypto, ctl, sizeof(struct dst_crypto_ctl));
439
440 for (i = 0; i < ctl->thread_num; ++i) {
441 snprintf(name, sizeof(name), "%s-crypto-%d", n->name, i);
442 /* Unique ids... */
443 err = thread_pool_add_worker(n->pool, name, i + 10,
444 dst_crypto_thread_init, dst_crypto_thread_cleanup, n);
445 if (err)
446 goto err_out_free_threads;
447 }
448
449 return 0;
450
451err_out_free_threads:
452 while (--i >= 0)
453 thread_pool_del_worker_id(n->pool, i+10);
454
455 if (ctl->cipher_keysize)
456 kfree(n->cipher_key);
457 ctl->cipher_keysize = 0;
458err_out_free_hash:
459 if (ctl->hash_keysize)
460 kfree(n->hash_key);
461 ctl->hash_keysize = 0;
462err_out_exit:
463 return err;
464}
465
466void dst_node_crypto_exit(struct dst_node *n)
467{
468 struct dst_crypto_ctl *ctl = &n->crypto;
469
470 if (ctl->cipher_algo[0] || ctl->hash_algo[0]) {
471 kfree(n->hash_key);
472 kfree(n->cipher_key);
473 }
474}
475
476/*
477 * Thrad pool setup callback. Just stores a transaction in private data.
478 */
479static int dst_trans_crypto_setup(void *crypto_engine, void *trans)
480{
481 struct dst_crypto_engine *e = crypto_engine;
482
483 e->private = trans;
484 return 0;
485}
486
487#if 0
488static void dst_dump_bio(struct bio *bio)
489{
490 u8 *p;
491 struct bio_vec *bv;
492 int i;
493
494 bio_for_each_segment(bv, bio, i) {
495 dprintk("%s: %llu/%u: size: %u, offset: %u, data: ",
496 __func__, bio->bi_sector, bio->bi_size,
497 bv->bv_len, bv->bv_offset);
498
499 p = kmap(bv->bv_page) + bv->bv_offset;
500 for (i = 0; i < bv->bv_len; ++i)
501 printk(KERN_DEBUG "%02x ", p[i]);
502 kunmap(bv->bv_page);
503 printk("\n");
504 }
505}
506#endif
507
508/*
509 * Encrypt/hash data and send it to the network.
510 */
511static int dst_crypto_process_sending(struct dst_crypto_engine *e,
512 struct bio *bio, u8 *hash)
513{
514 int err;
515
516 if (e->cipher) {
517 err = dst_crypt(e, bio);
518 if (err)
519 goto err_out_exit;
520 }
521
522 if (e->hash) {
523 err = dst_hash(e, bio, hash);
524 if (err)
525 goto err_out_exit;
526
527#ifdef CONFIG_DST_DEBUG
528 {
529 unsigned int i;
530
531 /* dst_dump_bio(bio); */
532
533 printk(KERN_DEBUG "%s: bio: %llu/%u, rw: %lu, hash: ",
534 __func__, (u64)bio->bi_sector,
535 bio->bi_size, bio_data_dir(bio));
536 for (i = 0; i < crypto_hash_digestsize(e->hash); ++i)
537 printk("%02x ", hash[i]);
538 printk("\n");
539 }
540#endif
541 }
542
543 return 0;
544
545err_out_exit:
546 return err;
547}
548
549/*
550 * Check if received data is valid. Decipher if it is.
551 */
552static int dst_crypto_process_receiving(struct dst_crypto_engine *e,
553 struct bio *bio, u8 *hash, u8 *recv_hash)
554{
555 int err;
556
557 if (e->hash) {
558 int mismatch;
559
560 err = dst_hash(e, bio, hash);
561 if (err)
562 goto err_out_exit;
563
564 mismatch = !!memcmp(recv_hash, hash,
565 crypto_hash_digestsize(e->hash));
566#ifdef CONFIG_DST_DEBUG
567 /* dst_dump_bio(bio); */
568
569 printk(KERN_DEBUG "%s: bio: %llu/%u, rw: %lu, hash mismatch: %d",
570 __func__, (u64)bio->bi_sector, bio->bi_size,
571 bio_data_dir(bio), mismatch);
572 if (mismatch) {
573 unsigned int i;
574
575 printk(", recv/calc: ");
576 for (i = 0; i < crypto_hash_digestsize(e->hash); ++i)
577 printk("%02x/%02x ", recv_hash[i], hash[i]);
578
579 }
580 printk("\n");
581#endif
582 err = -1;
583 if (mismatch)
584 goto err_out_exit;
585 }
586
587 if (e->cipher) {
588 err = dst_crypt(e, bio);
589 if (err)
590 goto err_out_exit;
591 }
592
593 return 0;
594
595err_out_exit:
596 return err;
597}
598
599/*
600 * Thread pool callback to encrypt data and send it to the netowork.
601 */
602static int dst_trans_crypto_action(void *crypto_engine, void *schedule_data)
603{
604 struct dst_crypto_engine *e = crypto_engine;
605 struct dst_trans *t = schedule_data;
606 struct bio *bio = t->bio;
607 int err;
608
609 dprintk("%s: t: %p, gen: %llu, cipher: %p, hash: %p.\n",
610 __func__, t, t->gen, e->cipher, e->hash);
611
612 e->enc = t->enc;
613 e->iv = dst_gen_iv(t);
614
615 if (bio_data_dir(bio) == WRITE) {
616 err = dst_crypto_process_sending(e, bio, t->cmd.hash);
617 if (err)
618 goto err_out_exit;
619
620 if (e->hash) {
621 t->cmd.csize = crypto_hash_digestsize(e->hash);
622 t->cmd.size += t->cmd.csize;
623 }
624
625 return dst_trans_send(t);
626 } else {
627 u8 *hash = e->data + e->size/2;
628
629 err = dst_crypto_process_receiving(e, bio, hash, t->cmd.hash);
630 if (err)
631 goto err_out_exit;
632
633 dst_trans_remove(t);
634 dst_trans_put(t);
635 }
636
637 return 0;
638
639err_out_exit:
640 t->error = err;
641 dst_trans_put(t);
642 return err;
643}
644
645/*
646 * Schedule crypto processing for given transaction.
647 */
648int dst_trans_crypto(struct dst_trans *t)
649{
650 struct dst_node *n = t->n;
651 int err;
652
653 err = thread_pool_schedule(n->pool,
654 dst_trans_crypto_setup, dst_trans_crypto_action,
655 t, MAX_SCHEDULE_TIMEOUT);
656 if (err)
657 goto err_out_exit;
658
659 return 0;
660
661err_out_exit:
662 dst_trans_put(t);
663 return err;
664}
665
666/*
667 * Crypto machinery for the export node.
668 */
669static int dst_export_crypto_setup(void *crypto_engine, void *bio)
670{
671 struct dst_crypto_engine *e = crypto_engine;
672
673 e->private = bio;
674 return 0;
675}
676
677static int dst_export_crypto_action(void *crypto_engine, void *schedule_data)
678{
679 struct dst_crypto_engine *e = crypto_engine;
680 struct bio *bio = schedule_data;
681 struct dst_export_priv *p = bio->bi_private;
682 int err;
683
684 dprintk("%s: e: %p, data: %p, bio: %llu/%u, dir: %lu.\n",
685 __func__, e, e->data, (u64)bio->bi_sector,
686 bio->bi_size, bio_data_dir(bio));
687
688 e->enc = (bio_data_dir(bio) == READ);
689 e->iv = p->cmd.id;
690
691 if (bio_data_dir(bio) == WRITE) {
692 u8 *hash = e->data + e->size/2;
693
694 err = dst_crypto_process_receiving(e, bio, hash, p->cmd.hash);
695 if (err)
696 goto err_out_exit;
697
698 generic_make_request(bio);
699 } else {
700 err = dst_crypto_process_sending(e, bio, p->cmd.hash);
701 if (err)
702 goto err_out_exit;
703
704 if (e->hash) {
705 p->cmd.csize = crypto_hash_digestsize(e->hash);
706 p->cmd.size += p->cmd.csize;
707 }
708
709 err = dst_export_send_bio(bio);
710 }
711 return 0;
712
713err_out_exit:
714 bio_put(bio);
715 return err;
716}
717
718int dst_export_crypto(struct dst_node *n, struct bio *bio)
719{
720 int err;
721
722 err = thread_pool_schedule(n->pool,
723 dst_export_crypto_setup, dst_export_crypto_action,
724 bio, MAX_SCHEDULE_TIMEOUT);
725 if (err)
726 goto err_out_exit;
727
728 return 0;
729
730err_out_exit:
731 bio_put(bio);
732 return err;
733}
diff --git a/drivers/staging/dst/dcore.c b/drivers/staging/dst/dcore.c
deleted file mode 100644
index c83ca7e3d048..000000000000
--- a/drivers/staging/dst/dcore.c
+++ /dev/null
@@ -1,968 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/module.h>
17#include <linux/kernel.h>
18#include <linux/blkdev.h>
19#include <linux/bio.h>
20#include <linux/buffer_head.h>
21#include <linux/connector.h>
22#include <linux/dst.h>
23#include <linux/device.h>
24#include <linux/jhash.h>
25#include <linux/idr.h>
26#include <linux/init.h>
27#include <linux/namei.h>
28#include <linux/slab.h>
29#include <linux/socket.h>
30
31#include <linux/in.h>
32#include <linux/in6.h>
33
34#include <net/sock.h>
35
36static int dst_major;
37
38static DEFINE_MUTEX(dst_hash_lock);
39static struct list_head *dst_hashtable;
40static unsigned int dst_hashtable_size = 128;
41module_param(dst_hashtable_size, uint, 0644);
42
43static char dst_name[] = "Dementianting goldfish";
44
45static DEFINE_IDR(dst_index_idr);
46static struct cb_id cn_dst_id = { CN_DST_IDX, CN_DST_VAL };
47
48/*
49 * DST sysfs tree for device called 'storage':
50 *
51 * /sys/bus/dst/devices/storage/
52 * /sys/bus/dst/devices/storage/type : 192.168.4.80:1025
53 * /sys/bus/dst/devices/storage/size : 800
54 * /sys/bus/dst/devices/storage/name : storage
55 */
56
57static int dst_dev_match(struct device *dev, struct device_driver *drv)
58{
59 return 1;
60}
61
62static struct bus_type dst_dev_bus_type = {
63 .name = "dst",
64 .match = &dst_dev_match,
65};
66
67static void dst_node_release(struct device *dev)
68{
69 struct dst_info *info = container_of(dev, struct dst_info, device);
70
71 kfree(info);
72}
73
74static struct device dst_node_dev = {
75 .bus = &dst_dev_bus_type,
76 .release = &dst_node_release
77};
78
79/*
80 * Setting size of the node after it was changed.
81 */
82static void dst_node_set_size(struct dst_node *n)
83{
84 struct block_device *bdev;
85
86 set_capacity(n->disk, n->size >> 9);
87
88 bdev = bdget_disk(n->disk, 0);
89 if (bdev) {
90 mutex_lock(&bdev->bd_inode->i_mutex);
91 i_size_write(bdev->bd_inode, n->size);
92 mutex_unlock(&bdev->bd_inode->i_mutex);
93 bdput(bdev);
94 }
95}
96
97/*
98 * Distributed storage request processing function.
99 */
100static int dst_request(struct request_queue *q, struct bio *bio)
101{
102 struct dst_node *n = q->queuedata;
103 int err = -EIO;
104
105 if (bio_empty_barrier(bio) && !blk_queue_discard(q)) {
106 /*
107 * This is a dirty^Wnice hack, but if we complete this
108 * operation with -EOPNOTSUPP like intended, XFS
109 * will stuck and freeze the machine. This may be
110 * not particulary XFS problem though, but it is the
111 * only FS which sends empty barrier at umount time
112 * I worked with.
113 *
114 * Empty barriers are not allowed anyway, see 51fd77bd9f512
115 * for example, although later it was changed to
116 * bio_rw_flagged(bio, BIO_RW_DISCARD) only, which does not
117 * work in this case.
118 */
119 /* err = -EOPNOTSUPP; */
120 err = 0;
121 goto end_io;
122 }
123
124 bio_get(bio);
125
126 return dst_process_bio(n, bio);
127
128end_io:
129 bio_endio(bio, err);
130 return err;
131}
132
133/*
134 * Open/close callbacks for appropriate block device.
135 */
136static int dst_bdev_open(struct block_device *bdev, fmode_t mode)
137{
138 struct dst_node *n = bdev->bd_disk->private_data;
139
140 dst_node_get(n);
141 return 0;
142}
143
144static int dst_bdev_release(struct gendisk *disk, fmode_t mode)
145{
146 struct dst_node *n = disk->private_data;
147
148 dst_node_put(n);
149 return 0;
150}
151
152static struct block_device_operations dst_blk_ops = {
153 .open = dst_bdev_open,
154 .release = dst_bdev_release,
155 .owner = THIS_MODULE,
156};
157
158/*
159 * Block layer binding - disk is created when array is fully configured
160 * by userspace request.
161 */
162static int dst_node_create_disk(struct dst_node *n)
163{
164 int err = -ENOMEM;
165 u32 index = 0;
166
167 n->queue = blk_init_queue(NULL, NULL);
168 if (!n->queue)
169 goto err_out_exit;
170
171 n->queue->queuedata = n;
172 blk_queue_make_request(n->queue, dst_request);
173 blk_queue_max_phys_segments(n->queue, n->max_pages);
174 blk_queue_max_hw_segments(n->queue, n->max_pages);
175
176 err = -ENOMEM;
177 n->disk = alloc_disk(1);
178 if (!n->disk)
179 goto err_out_free_queue;
180
181 if (!(n->state->permissions & DST_PERM_WRITE)) {
182 printk(KERN_INFO "DST node %s attached read-only.\n", n->name);
183 set_disk_ro(n->disk, 1);
184 }
185
186 if (!idr_pre_get(&dst_index_idr, GFP_KERNEL))
187 goto err_out_put;
188
189 mutex_lock(&dst_hash_lock);
190 err = idr_get_new(&dst_index_idr, NULL, &index);
191 mutex_unlock(&dst_hash_lock);
192 if (err)
193 goto err_out_put;
194
195 n->disk->major = dst_major;
196 n->disk->first_minor = index;
197 n->disk->fops = &dst_blk_ops;
198 n->disk->queue = n->queue;
199 n->disk->private_data = n;
200 snprintf(n->disk->disk_name, sizeof(n->disk->disk_name),
201 "dst-%s", n->name);
202
203 return 0;
204
205err_out_put:
206 put_disk(n->disk);
207err_out_free_queue:
208 blk_cleanup_queue(n->queue);
209err_out_exit:
210 return err;
211}
212
213/*
214 * Sysfs machinery: show device's size.
215 */
216static ssize_t dst_show_size(struct device *dev,
217 struct device_attribute *attr, char *buf)
218{
219 struct dst_info *info = container_of(dev, struct dst_info, device);
220
221 return sprintf(buf, "%llu\n", info->size);
222}
223
224/*
225 * Show local exported device.
226 */
227static ssize_t dst_show_local(struct device *dev,
228 struct device_attribute *attr, char *buf)
229{
230 struct dst_info *info = container_of(dev, struct dst_info, device);
231
232 return sprintf(buf, "%s\n", info->local);
233}
234
235/*
236 * Shows type of the remote node - device major/minor number
237 * for local nodes and address (af_inet ipv4/ipv6 only) for remote nodes.
238 */
239static ssize_t dst_show_type(struct device *dev,
240 struct device_attribute *attr, char *buf)
241{
242 struct dst_info *info = container_of(dev, struct dst_info, device);
243 int family = info->net.addr.sa_family;
244
245 if (family == AF_INET) {
246 struct sockaddr_in *sin = (struct sockaddr_in *)&info->net.addr;
247 return sprintf(buf, "%u.%u.%u.%u:%d\n",
248 NIPQUAD(sin->sin_addr.s_addr), ntohs(sin->sin_port));
249 } else if (family == AF_INET6) {
250 struct sockaddr_in6 *sin = (struct sockaddr_in6 *)
251 &info->net.addr;
252 return sprintf(buf,
253 "%pi6:%d\n",
254 &sin->sin6_addr, ntohs(sin->sin6_port));
255 } else {
256 int i, sz = PAGE_SIZE - 2; /* 0 symbol and '\n' below */
257 int size, addrlen = info->net.addr.sa_data_len;
258 unsigned char *a = (unsigned char *)&info->net.addr.sa_data;
259 char *buf_orig = buf;
260
261 size = snprintf(buf, sz, "family: %d, addrlen: %u, addr: ",
262 family, addrlen);
263 sz -= size;
264 buf += size;
265
266 for (i = 0; i < addrlen; ++i) {
267 if (sz < 3)
268 break;
269
270 size = snprintf(buf, sz, "%02x ", a[i]);
271 sz -= size;
272 buf += size;
273 }
274 buf += sprintf(buf, "\n");
275
276 return buf - buf_orig;
277 }
278 return 0;
279}
280
281static struct device_attribute dst_node_attrs[] = {
282 __ATTR(size, 0444, dst_show_size, NULL),
283 __ATTR(type, 0444, dst_show_type, NULL),
284 __ATTR(local, 0444, dst_show_local, NULL),
285};
286
287static int dst_create_node_attributes(struct dst_node *n)
288{
289 int err, i;
290
291 for (i = 0; i < ARRAY_SIZE(dst_node_attrs); ++i) {
292 err = device_create_file(&n->info->device,
293 &dst_node_attrs[i]);
294 if (err)
295 goto err_out_remove_all;
296 }
297 return 0;
298
299err_out_remove_all:
300 while (--i >= 0)
301 device_remove_file(&n->info->device,
302 &dst_node_attrs[i]);
303
304 return err;
305}
306
307static void dst_remove_node_attributes(struct dst_node *n)
308{
309 int i;
310
311 for (i = 0; i < ARRAY_SIZE(dst_node_attrs); ++i)
312 device_remove_file(&n->info->device,
313 &dst_node_attrs[i]);
314}
315
316/*
317 * Sysfs cleanup and initialization.
318 * Shows number of useful parameters.
319 */
320static void dst_node_sysfs_exit(struct dst_node *n)
321{
322 if (n->info) {
323 dst_remove_node_attributes(n);
324 device_unregister(&n->info->device);
325 n->info = NULL;
326 }
327}
328
329static int dst_node_sysfs_init(struct dst_node *n)
330{
331 int err;
332
333 n->info = kzalloc(sizeof(struct dst_info), GFP_KERNEL);
334 if (!n->info)
335 return -ENOMEM;
336
337 memcpy(&n->info->device, &dst_node_dev, sizeof(struct device));
338 n->info->size = n->size;
339
340 dev_set_name(&n->info->device, "dst-%s", n->name);
341 err = device_register(&n->info->device);
342 if (err) {
343 dprintk(KERN_ERR "Failed to register node '%s', err: %d.\n",
344 n->name, err);
345 goto err_out_exit;
346 }
347
348 dst_create_node_attributes(n);
349
350 return 0;
351
352err_out_exit:
353 kfree(n->info);
354 n->info = NULL;
355 return err;
356}
357
358/*
359 * DST node hash tables machinery.
360 */
361static inline unsigned int dst_hash(char *str, unsigned int size)
362{
363 return jhash(str, size, 0) % dst_hashtable_size;
364}
365
366static void dst_node_remove(struct dst_node *n)
367{
368 mutex_lock(&dst_hash_lock);
369 list_del_init(&n->node_entry);
370 mutex_unlock(&dst_hash_lock);
371}
372
373static void dst_node_add(struct dst_node *n)
374{
375 unsigned hash = dst_hash(n->name, sizeof(n->name));
376
377 mutex_lock(&dst_hash_lock);
378 list_add_tail(&n->node_entry, &dst_hashtable[hash]);
379 mutex_unlock(&dst_hash_lock);
380}
381
382/*
383 * Cleaning node when it is about to be freed.
384 * There are still users of the socket though,
385 * so connection cleanup should be protected.
386 */
387static void dst_node_cleanup(struct dst_node *n)
388{
389 struct dst_state *st = n->state;
390
391 if (!st)
392 return;
393
394 if (n->queue) {
395 blk_cleanup_queue(n->queue);
396
397 mutex_lock(&dst_hash_lock);
398 idr_remove(&dst_index_idr, n->disk->first_minor);
399 mutex_unlock(&dst_hash_lock);
400
401 put_disk(n->disk);
402 }
403
404 if (n->bdev) {
405 sync_blockdev(n->bdev);
406 close_bdev_exclusive(n->bdev, FMODE_READ|FMODE_WRITE);
407 }
408
409 dst_state_lock(st);
410 st->need_exit = 1;
411 dst_state_exit_connected(st);
412 dst_state_unlock(st);
413
414 wake_up(&st->thread_wait);
415
416 dst_state_put(st);
417 n->state = NULL;
418}
419
420/*
421 * Free security attributes attached to given node.
422 */
423static void dst_security_exit(struct dst_node *n)
424{
425 struct dst_secure *s, *tmp;
426
427 list_for_each_entry_safe(s, tmp, &n->security_list, sec_entry) {
428 list_del(&s->sec_entry);
429 kfree(s);
430 }
431}
432
433/*
434 * Free node when there are no more users.
435 * Actually node has to be freed on behalf od userspace process,
436 * since there are number of threads, which are embedded in the
437 * node, so they can not exit and free node from there, that is
438 * why there is a wakeup if reference counter is not equal to zero.
439 */
440void dst_node_put(struct dst_node *n)
441{
442 if (unlikely(!n))
443 return;
444
445 dprintk("%s: n: %p, refcnt: %d.\n",
446 __func__, n, atomic_read(&n->refcnt));
447
448 if (atomic_dec_and_test(&n->refcnt)) {
449 dst_node_remove(n);
450 n->trans_scan_timeout = 0;
451 dst_node_cleanup(n);
452 thread_pool_destroy(n->pool);
453 dst_node_sysfs_exit(n);
454 dst_node_crypto_exit(n);
455 dst_security_exit(n);
456 dst_node_trans_exit(n);
457
458 kfree(n);
459
460 dprintk("%s: freed n: %p.\n", __func__, n);
461 } else {
462 wake_up(&n->wait);
463 }
464}
465
466/*
467 * Setting up export device: lookup by the name, get its size
468 * and setup listening socket, which will accept clients, which
469 * will submit IO for given storage.
470 */
471static int dst_setup_export(struct dst_node *n, struct dst_ctl *ctl,
472 struct dst_export_ctl *le)
473{
474 int err;
475
476 snprintf(n->info->local, sizeof(n->info->local), "%s", le->device);
477
478 n->bdev = open_bdev_exclusive(le->device, FMODE_READ|FMODE_WRITE, NULL);
479 if (IS_ERR(n->bdev))
480 return PTR_ERR(n->bdev);
481
482 if (n->size != 0)
483 n->size = min_t(loff_t, n->bdev->bd_inode->i_size, n->size);
484 else
485 n->size = n->bdev->bd_inode->i_size;
486
487 n->info->size = n->size;
488 err = dst_node_init_listened(n, le);
489 if (err)
490 goto err_out_cleanup;
491
492 return 0;
493
494err_out_cleanup:
495 close_bdev_exclusive(n->bdev, FMODE_READ|FMODE_WRITE);
496 n->bdev = NULL;
497
498 return err;
499}
500
501/* Empty thread pool callbacks for the network processing threads. */
502static inline void *dst_thread_network_init(void *data)
503{
504 dprintk("%s: data: %p.\n", __func__, data);
505 return data;
506}
507
508static inline void dst_thread_network_cleanup(void *data)
509{
510 dprintk("%s: data: %p.\n", __func__, data);
511}
512
513/*
514 * Allocate DST node and initialize some of its parameters.
515 */
516static struct dst_node *dst_alloc_node(struct dst_ctl *ctl,
517 int (*start)(struct dst_node *),
518 int num)
519{
520 struct dst_node *n;
521 int err;
522
523 n = kzalloc(sizeof(struct dst_node), GFP_KERNEL);
524 if (!n)
525 return NULL;
526
527 INIT_LIST_HEAD(&n->node_entry);
528
529 INIT_LIST_HEAD(&n->security_list);
530 mutex_init(&n->security_lock);
531
532 init_waitqueue_head(&n->wait);
533
534 n->trans_scan_timeout = msecs_to_jiffies(ctl->trans_scan_timeout);
535 if (!n->trans_scan_timeout)
536 n->trans_scan_timeout = HZ;
537
538 n->trans_max_retries = ctl->trans_max_retries;
539 if (!n->trans_max_retries)
540 n->trans_max_retries = 10;
541
542 /*
543 * Pretty much arbitrary default numbers.
544 * 32 matches maximum number of pages in bio originated from ext3 (31).
545 */
546 n->max_pages = ctl->max_pages;
547 if (!n->max_pages)
548 n->max_pages = 32;
549
550 if (n->max_pages > 1024)
551 n->max_pages = 1024;
552
553 n->start = start;
554 n->size = ctl->size;
555
556 atomic_set(&n->refcnt, 1);
557 atomic_long_set(&n->gen, 0);
558 snprintf(n->name, sizeof(n->name), "%s", ctl->name);
559
560 err = dst_node_sysfs_init(n);
561 if (err)
562 goto err_out_free;
563
564 n->pool = thread_pool_create(num, n->name, dst_thread_network_init,
565 dst_thread_network_cleanup, n);
566 if (IS_ERR(n->pool)) {
567 err = PTR_ERR(n->pool);
568 goto err_out_sysfs_exit;
569 }
570
571 dprintk("%s: n: %p, name: %s.\n", __func__, n, n->name);
572
573 return n;
574
575err_out_sysfs_exit:
576 dst_node_sysfs_exit(n);
577err_out_free:
578 kfree(n);
579 return NULL;
580}
581
582/*
583 * Starting a node, connected to the remote server:
584 * register block device and initialize transaction mechanism.
585 * In revers order though.
586 *
587 * It will autonegotiate some parameters with the remote node
588 * and update local if needed.
589 *
590 * Transaction initialization should be the last thing before
591 * starting the node, since transaction should include not only
592 * block IO, but also crypto related data (if any), which are
593 * initialized separately.
594 */
595static int dst_start_remote(struct dst_node *n)
596{
597 int err;
598
599 err = dst_node_trans_init(n, sizeof(struct dst_trans));
600 if (err)
601 return err;
602
603 err = dst_node_create_disk(n);
604 if (err)
605 return err;
606
607 dst_node_set_size(n);
608 add_disk(n->disk);
609
610 dprintk("DST: started remote node '%s', minor: %d.\n",
611 n->name, n->disk->first_minor);
612
613 return 0;
614}
615
616/*
617 * Adding remote node and initialize connection.
618 */
619static int dst_add_remote(struct dst_node *n, struct dst_ctl *ctl,
620 void *data, unsigned int size)
621{
622 int err;
623 struct dst_network_ctl *rctl = data;
624
625 if (n)
626 return -EEXIST;
627
628 if (size != sizeof(struct dst_network_ctl))
629 return -EINVAL;
630
631 n = dst_alloc_node(ctl, dst_start_remote, 1);
632 if (!n)
633 return -ENOMEM;
634
635 memcpy(&n->info->net, rctl, sizeof(struct dst_network_ctl));
636 err = dst_node_init_connected(n, rctl);
637 if (err)
638 goto err_out_free;
639
640 dst_node_add(n);
641
642 return 0;
643
644err_out_free:
645 dst_node_put(n);
646 return err;
647}
648
649/*
650 * Adding export node: initializing block device and listening socket.
651 */
652static int dst_add_export(struct dst_node *n, struct dst_ctl *ctl,
653 void *data, unsigned int size)
654{
655 int err;
656 struct dst_export_ctl *le = data;
657
658 if (n)
659 return -EEXIST;
660
661 if (size != sizeof(struct dst_export_ctl))
662 return -EINVAL;
663
664 n = dst_alloc_node(ctl, dst_start_export, 2);
665 if (!n)
666 return -EINVAL;
667
668 err = dst_setup_export(n, ctl, le);
669 if (err)
670 goto err_out_free;
671
672 dst_node_add(n);
673
674 return 0;
675
676err_out_free:
677 dst_node_put(n);
678 return err;
679}
680
681static int dst_node_remove_unload(struct dst_node *n)
682{
683 printk(KERN_INFO "STOPPED name: '%s', size: %llu.\n",
684 n->name, n->size);
685
686 if (n->disk)
687 del_gendisk(n->disk);
688
689 dst_node_remove(n);
690 dst_node_sysfs_exit(n);
691
692 /*
693 * This is not a hack. Really.
694 * Node's reference counter allows to implement fine grained
695 * node freeing, but since all transactions (which hold node's
696 * reference counter) are processed in the dedicated thread,
697 * it is possible that reference will hit zero in that thread,
698 * so we will not be able to exit thread and cleanup the node.
699 *
700 * So, we remove disk, so no new activity is possible, and
701 * wait until all pending transaction are completed (either
702 * in receiving thread or by timeout in workqueue), in this
703 * case reference counter will be less or equal to 2 (once set in
704 * dst_alloc_node() and then in connector message parser;
705 * or when we force module unloading, and connector message
706 * parser does not hold a reference, in this case reference
707 * counter will be equal to 1),
708 * and subsequent dst_node_put() calls will free the node.
709 */
710 dprintk("%s: going to sleep with %d refcnt.\n",
711 __func__, atomic_read(&n->refcnt));
712 wait_event(n->wait, atomic_read(&n->refcnt) <= 2);
713
714 dst_node_put(n);
715 return 0;
716}
717
718/*
719 * Remove node from the hash table.
720 */
721static int dst_del_node(struct dst_node *n, struct dst_ctl *ctl,
722 void *data, unsigned int size)
723{
724 if (!n)
725 return -ENODEV;
726
727 return dst_node_remove_unload(n);
728}
729
730/*
731 * Initialize crypto processing for given node.
732 */
733static int dst_crypto_init(struct dst_node *n, struct dst_ctl *ctl,
734 void *data, unsigned int size)
735{
736 struct dst_crypto_ctl *crypto = data;
737
738 if (!n)
739 return -ENODEV;
740
741 if (size != sizeof(struct dst_crypto_ctl) + crypto->hash_keysize +
742 crypto->cipher_keysize)
743 return -EINVAL;
744
745 if (n->trans_cache)
746 return -EEXIST;
747
748 return dst_node_crypto_init(n, crypto);
749}
750
751/*
752 * Security attributes for given node.
753 */
754static int dst_security_init(struct dst_node *n, struct dst_ctl *ctl,
755 void *data, unsigned int size)
756{
757 struct dst_secure *s;
758
759 if (!n)
760 return -ENODEV;
761
762 if (size != sizeof(struct dst_secure_user))
763 return -EINVAL;
764
765 s = kmalloc(sizeof(struct dst_secure), GFP_KERNEL);
766 if (!s)
767 return -ENOMEM;
768
769 memcpy(&s->sec, data, size);
770
771 mutex_lock(&n->security_lock);
772 list_add_tail(&s->sec_entry, &n->security_list);
773 mutex_unlock(&n->security_lock);
774
775 return 0;
776}
777
778/*
779 * Kill'em all!
780 */
781static int dst_start_node(struct dst_node *n, struct dst_ctl *ctl,
782 void *data, unsigned int size)
783{
784 int err;
785
786 if (!n)
787 return -ENODEV;
788
789 if (n->trans_cache)
790 return 0;
791
792 err = n->start(n);
793 if (err)
794 return err;
795
796 printk(KERN_INFO "STARTED name: '%s', size: %llu.\n", n->name, n->size);
797 return 0;
798}
799
800typedef int (*dst_command_func)(struct dst_node *n, struct dst_ctl *ctl,
801 void *data, unsigned int size);
802
803/*
804 * List of userspace commands.
805 */
806static dst_command_func dst_commands[] = {
807 [DST_ADD_REMOTE] = &dst_add_remote,
808 [DST_ADD_EXPORT] = &dst_add_export,
809 [DST_DEL_NODE] = &dst_del_node,
810 [DST_CRYPTO] = &dst_crypto_init,
811 [DST_SECURITY] = &dst_security_init,
812 [DST_START] = &dst_start_node,
813};
814
815/*
816 * Configuration parser.
817 */
818static void cn_dst_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp)
819{
820 struct dst_ctl *ctl;
821 int err;
822 struct dst_ctl_ack ack;
823 struct dst_node *n = NULL, *tmp;
824 unsigned int hash;
825
826 if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) {
827 err = -EPERM;
828 goto out;
829 }
830
831 if (msg->len < sizeof(struct dst_ctl)) {
832 err = -EBADMSG;
833 goto out;
834 }
835
836 ctl = (struct dst_ctl *)msg->data;
837
838 if (ctl->cmd >= DST_CMD_MAX) {
839 err = -EINVAL;
840 goto out;
841 }
842 hash = dst_hash(ctl->name, sizeof(ctl->name));
843
844 mutex_lock(&dst_hash_lock);
845 list_for_each_entry(tmp, &dst_hashtable[hash], node_entry) {
846 if (!memcmp(tmp->name, ctl->name, sizeof(tmp->name))) {
847 n = tmp;
848 dst_node_get(n);
849 break;
850 }
851 }
852 mutex_unlock(&dst_hash_lock);
853
854 err = dst_commands[ctl->cmd](n, ctl, msg->data + sizeof(struct dst_ctl),
855 msg->len - sizeof(struct dst_ctl));
856
857 dst_node_put(n);
858out:
859 memcpy(&ack.msg, msg, sizeof(struct cn_msg));
860
861 ack.msg.ack = msg->ack + 1;
862 ack.msg.len = sizeof(struct dst_ctl_ack) - sizeof(struct cn_msg);
863
864 ack.error = err;
865
866 cn_netlink_send(&ack.msg, 0, GFP_KERNEL);
867}
868
869/*
870 * Global initialization: sysfs, hash table, block device registration,
871 * connector and various caches.
872 */
873static int __init dst_sysfs_init(void)
874{
875 return bus_register(&dst_dev_bus_type);
876}
877
878static void dst_sysfs_exit(void)
879{
880 bus_unregister(&dst_dev_bus_type);
881}
882
883static int __init dst_hashtable_init(void)
884{
885 unsigned int i;
886
887 dst_hashtable = kcalloc(dst_hashtable_size, sizeof(struct list_head),
888 GFP_KERNEL);
889 if (!dst_hashtable)
890 return -ENOMEM;
891
892 for (i = 0; i < dst_hashtable_size; ++i)
893 INIT_LIST_HEAD(&dst_hashtable[i]);
894
895 return 0;
896}
897
898static void dst_hashtable_exit(void)
899{
900 unsigned int i;
901 struct dst_node *n, *tmp;
902
903 for (i = 0; i < dst_hashtable_size; ++i) {
904 list_for_each_entry_safe(n, tmp, &dst_hashtable[i], node_entry) {
905 dst_node_remove_unload(n);
906 }
907 }
908
909 kfree(dst_hashtable);
910}
911
912static int __init dst_sys_init(void)
913{
914 int err = -ENOMEM;
915
916 err = dst_hashtable_init();
917 if (err)
918 goto err_out_exit;
919
920 err = dst_export_init();
921 if (err)
922 goto err_out_hashtable_exit;
923
924 err = register_blkdev(dst_major, DST_NAME);
925 if (err < 0)
926 goto err_out_export_exit;
927 if (err)
928 dst_major = err;
929
930 err = dst_sysfs_init();
931 if (err)
932 goto err_out_unregister;
933
934 err = cn_add_callback(&cn_dst_id, "DST", cn_dst_callback);
935 if (err)
936 goto err_out_sysfs_exit;
937
938 printk(KERN_INFO "Distributed storage, '%s' release.\n", dst_name);
939
940 return 0;
941
942err_out_sysfs_exit:
943 dst_sysfs_exit();
944err_out_unregister:
945 unregister_blkdev(dst_major, DST_NAME);
946err_out_export_exit:
947 dst_export_exit();
948err_out_hashtable_exit:
949 dst_hashtable_exit();
950err_out_exit:
951 return err;
952}
953
954static void __exit dst_sys_exit(void)
955{
956 cn_del_callback(&cn_dst_id);
957 unregister_blkdev(dst_major, DST_NAME);
958 dst_hashtable_exit();
959 dst_sysfs_exit();
960 dst_export_exit();
961}
962
963module_init(dst_sys_init);
964module_exit(dst_sys_exit);
965
966MODULE_DESCRIPTION("Distributed storage");
967MODULE_AUTHOR("Evgeniy Polyakov <zbr@ioremap.net>");
968MODULE_LICENSE("GPL");
diff --git a/drivers/staging/dst/export.c b/drivers/staging/dst/export.c
deleted file mode 100644
index c324230e8b60..000000000000
--- a/drivers/staging/dst/export.c
+++ /dev/null
@@ -1,660 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/blkdev.h>
17#include <linux/bio.h>
18#include <linux/dst.h>
19#include <linux/in.h>
20#include <linux/in6.h>
21#include <linux/poll.h>
22#include <linux/slab.h>
23#include <linux/socket.h>
24
25#include <net/sock.h>
26
27/*
28 * Export bioset is used for server block IO requests.
29 */
30static struct bio_set *dst_bio_set;
31
32int __init dst_export_init(void)
33{
34 int err = -ENOMEM;
35
36 dst_bio_set = bioset_create(32, sizeof(struct dst_export_priv));
37 if (!dst_bio_set)
38 goto err_out_exit;
39
40 return 0;
41
42err_out_exit:
43 return err;
44}
45
46void dst_export_exit(void)
47{
48 bioset_free(dst_bio_set);
49}
50
51/*
52 * When client connects and autonegotiates with the server node,
53 * its permissions are checked in a security attributes and sent
54 * back.
55 */
56static unsigned int dst_check_permissions(struct dst_state *main,
57 struct dst_state *st)
58{
59 struct dst_node *n = main->node;
60 struct dst_secure *sentry;
61 struct dst_secure_user *s;
62 struct saddr *sa = &st->ctl.addr;
63 unsigned int perm = 0;
64
65 mutex_lock(&n->security_lock);
66 list_for_each_entry(sentry, &n->security_list, sec_entry) {
67 s = &sentry->sec;
68
69 if (s->addr.sa_family != sa->sa_family)
70 continue;
71
72 if (s->addr.sa_data_len != sa->sa_data_len)
73 continue;
74
75 /*
76 * This '2' below is a port field. This may be very wrong to do
77 * in atalk for example though. If there will be any need
78 * to extent protocol to something else, I can create
79 * per-family helpers and use them instead of this memcmp.
80 */
81 if (memcmp(s->addr.sa_data + 2, sa->sa_data + 2,
82 sa->sa_data_len - 2))
83 continue;
84
85 perm = s->permissions;
86 }
87 mutex_unlock(&n->security_lock);
88
89 return perm;
90}
91
92/*
93 * Accept new client: allocate appropriate network state and check permissions.
94 */
95static struct dst_state *dst_accept_client(struct dst_state *st)
96{
97 unsigned int revents = 0;
98 unsigned int err_mask = POLLERR | POLLHUP | POLLRDHUP;
99 unsigned int mask = err_mask | POLLIN;
100 struct dst_node *n = st->node;
101 int err = 0;
102 struct socket *sock = NULL;
103 struct dst_state *new;
104
105 while (!err && !sock) {
106 revents = dst_state_poll(st);
107
108 if (!(revents & mask)) {
109 DEFINE_WAIT(wait);
110
111 for (;;) {
112 prepare_to_wait(&st->thread_wait,
113 &wait, TASK_INTERRUPTIBLE);
114 if (!n->trans_scan_timeout || st->need_exit)
115 break;
116
117 revents = dst_state_poll(st);
118
119 if (revents & mask)
120 break;
121
122 if (signal_pending(current))
123 break;
124
125 /*
126 * Magic HZ? Polling check above is not safe in
127 * all cases (like socket reset in BH context),
128 * so it is simpler just to postpone it to the
129 * process context instead of implementing
130 * special locking there.
131 */
132 schedule_timeout(HZ);
133 }
134 finish_wait(&st->thread_wait, &wait);
135 }
136
137 err = -ECONNRESET;
138 dst_state_lock(st);
139
140 dprintk("%s: st: %p, revents: %x [err: %d, in: %d].\n",
141 __func__, st, revents, revents & err_mask,
142 revents & POLLIN);
143
144 if (revents & err_mask) {
145 dprintk("%s: revents: %x, socket: %p, err: %d.\n",
146 __func__, revents, st->socket, err);
147 err = -ECONNRESET;
148 }
149
150 if (!n->trans_scan_timeout || st->need_exit)
151 err = -ENODEV;
152
153 if (st->socket && (revents & POLLIN))
154 err = kernel_accept(st->socket, &sock, 0);
155
156 dst_state_unlock(st);
157 }
158
159 if (err)
160 goto err_out_exit;
161
162 new = dst_state_alloc(st->node);
163 if (IS_ERR(new)) {
164 err = -ENOMEM;
165 goto err_out_release;
166 }
167 new->socket = sock;
168
169 new->ctl.addr.sa_data_len = sizeof(struct sockaddr);
170 err = kernel_getpeername(sock, (struct sockaddr *)&new->ctl.addr,
171 (int *)&new->ctl.addr.sa_data_len);
172 if (err)
173 goto err_out_put;
174
175 new->permissions = dst_check_permissions(st, new);
176 if (new->permissions == 0) {
177 err = -EPERM;
178 dst_dump_addr(sock, (struct sockaddr *)&new->ctl.addr,
179 "Client is not allowed to connect");
180 goto err_out_put;
181 }
182
183 err = dst_poll_init(new);
184 if (err)
185 goto err_out_put;
186
187 dst_dump_addr(sock, (struct sockaddr *)&new->ctl.addr,
188 "Connected client");
189
190 return new;
191
192err_out_put:
193 dst_state_put(new);
194err_out_release:
195 sock_release(sock);
196err_out_exit:
197 return ERR_PTR(err);
198}
199
200/*
201 * Each server's block request sometime finishes.
202 * Usually it happens in hard irq context of the appropriate controller,
203 * so to play good with all cases we just queue BIO into the queue
204 * and wake up processing thread, which gets completed request and
205 * send (encrypting if needed) it back to the client (if it was a read
206 * request), or sends back reply that writing successfully completed.
207 */
208static int dst_export_process_request_queue(struct dst_state *st)
209{
210 unsigned long flags;
211 struct dst_export_priv *p = NULL;
212 struct bio *bio;
213 int err = 0;
214
215 while (!list_empty(&st->request_list)) {
216 spin_lock_irqsave(&st->request_lock, flags);
217 if (!list_empty(&st->request_list)) {
218 p = list_first_entry(&st->request_list,
219 struct dst_export_priv, request_entry);
220 list_del(&p->request_entry);
221 }
222 spin_unlock_irqrestore(&st->request_lock, flags);
223
224 if (!p)
225 break;
226
227 bio = p->bio;
228
229 if (dst_need_crypto(st->node) && (bio_data_dir(bio) == READ))
230 err = dst_export_crypto(st->node, bio);
231 else
232 err = dst_export_send_bio(bio);
233
234 if (err)
235 break;
236 }
237
238 return err;
239}
240
241/*
242 * Cleanup export state.
243 * It has to wait until all requests are finished,
244 * and then free them all.
245 */
246static void dst_state_cleanup_export(struct dst_state *st)
247{
248 struct dst_export_priv *p;
249 unsigned long flags;
250
251 /*
252 * This loop waits for all pending bios to be completed and freed.
253 */
254 while (atomic_read(&st->refcnt) > 1) {
255 dprintk("%s: st: %p, refcnt: %d, list_empty: %d.\n",
256 __func__, st, atomic_read(&st->refcnt),
257 list_empty(&st->request_list));
258 wait_event_timeout(st->thread_wait,
259 (atomic_read(&st->refcnt) == 1) ||
260 !list_empty(&st->request_list),
261 HZ/2);
262
263 while (!list_empty(&st->request_list)) {
264 p = NULL;
265 spin_lock_irqsave(&st->request_lock, flags);
266 if (!list_empty(&st->request_list)) {
267 p = list_first_entry(&st->request_list,
268 struct dst_export_priv, request_entry);
269 list_del(&p->request_entry);
270 }
271 spin_unlock_irqrestore(&st->request_lock, flags);
272
273 if (p)
274 bio_put(p->bio);
275
276 dprintk("%s: st: %p, refcnt: %d, list_empty: %d, p: "
277 "%p.\n", __func__, st, atomic_read(&st->refcnt),
278 list_empty(&st->request_list), p);
279 }
280 }
281
282 dst_state_put(st);
283}
284
285/*
286 * Client accepting thread.
287 * Not only accepts new connection, but also schedules receiving thread
288 * and performs request completion described above.
289 */
290static int dst_accept(void *init_data, void *schedule_data)
291{
292 struct dst_state *main_st = schedule_data;
293 struct dst_node *n = init_data;
294 struct dst_state *st;
295 int err;
296
297 while (n->trans_scan_timeout && !main_st->need_exit) {
298 dprintk("%s: main_st: %p, n: %p.\n", __func__, main_st, n);
299 st = dst_accept_client(main_st);
300 if (IS_ERR(st))
301 continue;
302
303 err = dst_state_schedule_receiver(st);
304 if (!err) {
305 while (n->trans_scan_timeout) {
306 err = wait_event_interruptible_timeout(st->thread_wait,
307 !list_empty(&st->request_list) ||
308 !n->trans_scan_timeout ||
309 st->need_exit,
310 HZ);
311
312 if (!n->trans_scan_timeout || st->need_exit)
313 break;
314
315 if (list_empty(&st->request_list))
316 continue;
317
318 err = dst_export_process_request_queue(st);
319 if (err)
320 break;
321 }
322
323 st->need_exit = 1;
324 wake_up(&st->thread_wait);
325 }
326
327 dst_state_cleanup_export(st);
328 }
329
330 dprintk("%s: freeing listening socket st: %p.\n", __func__, main_st);
331
332 dst_state_lock(main_st);
333 dst_poll_exit(main_st);
334 dst_state_socket_release(main_st);
335 dst_state_unlock(main_st);
336 dst_state_put(main_st);
337 dprintk("%s: freed listening socket st: %p.\n", __func__, main_st);
338
339 return 0;
340}
341
342int dst_start_export(struct dst_node *n)
343{
344 if (list_empty(&n->security_list)) {
345 printk(KERN_ERR "You are trying to export node '%s' "
346 "without security attributes.\nNo clients will "
347 "be allowed to connect. Exiting.\n", n->name);
348 return -EINVAL;
349 }
350 return dst_node_trans_init(n, sizeof(struct dst_export_priv));
351}
352
353/*
354 * Initialize listening state and schedule accepting thread.
355 */
356int dst_node_init_listened(struct dst_node *n, struct dst_export_ctl *le)
357{
358 struct dst_state *st;
359 int err = -ENOMEM;
360 struct dst_network_ctl *ctl = &le->ctl;
361
362 memcpy(&n->info->net, ctl, sizeof(struct dst_network_ctl));
363
364 st = dst_state_alloc(n);
365 if (IS_ERR(st)) {
366 err = PTR_ERR(st);
367 goto err_out_exit;
368 }
369 memcpy(&st->ctl, ctl, sizeof(struct dst_network_ctl));
370
371 err = dst_state_socket_create(st);
372 if (err)
373 goto err_out_put;
374
375 st->socket->sk->sk_reuse = 1;
376
377 err = kernel_bind(st->socket, (struct sockaddr *)&ctl->addr,
378 ctl->addr.sa_data_len);
379 if (err)
380 goto err_out_socket_release;
381
382 err = kernel_listen(st->socket, 1024);
383 if (err)
384 goto err_out_socket_release;
385 n->state = st;
386
387 err = dst_poll_init(st);
388 if (err)
389 goto err_out_socket_release;
390
391 dst_state_get(st);
392
393 err = thread_pool_schedule(n->pool, dst_thread_setup,
394 dst_accept, st, MAX_SCHEDULE_TIMEOUT);
395 if (err)
396 goto err_out_poll_exit;
397
398 return 0;
399
400err_out_poll_exit:
401 dst_poll_exit(st);
402err_out_socket_release:
403 dst_state_socket_release(st);
404err_out_put:
405 dst_state_put(st);
406err_out_exit:
407 n->state = NULL;
408 return err;
409}
410
411/*
412 * Free bio and related private data.
413 * Also drop a reference counter for appropriate state,
414 * which waits when there are no more block IOs in-flight.
415 */
416static void dst_bio_destructor(struct bio *bio)
417{
418 struct bio_vec *bv;
419 struct dst_export_priv *priv = bio->bi_private;
420 int i;
421
422 bio_for_each_segment(bv, bio, i) {
423 if (!bv->bv_page)
424 break;
425
426 __free_page(bv->bv_page);
427 }
428
429 if (priv)
430 dst_state_put(priv->state);
431 bio_free(bio, dst_bio_set);
432}
433
434/*
435 * Block IO completion. Queue request to be sent back to
436 * the client (or just confirmation).
437 */
438static void dst_bio_end_io(struct bio *bio, int err)
439{
440 struct dst_export_priv *p = bio->bi_private;
441 struct dst_state *st = p->state;
442 unsigned long flags;
443
444 spin_lock_irqsave(&st->request_lock, flags);
445 list_add_tail(&p->request_entry, &st->request_list);
446 spin_unlock_irqrestore(&st->request_lock, flags);
447
448 wake_up(&st->thread_wait);
449}
450
451/*
452 * Allocate read request for the server.
453 */
454static int dst_export_read_request(struct bio *bio, unsigned int total_size)
455{
456 unsigned int size;
457 struct page *page;
458 int err;
459
460 while (total_size) {
461 err = -ENOMEM;
462 page = alloc_page(GFP_KERNEL);
463 if (!page)
464 goto err_out_exit;
465
466 size = min_t(unsigned int, PAGE_SIZE, total_size);
467
468 err = bio_add_page(bio, page, size, 0);
469 dprintk("%s: bio: %llu/%u, size: %u, err: %d.\n",
470 __func__, (u64)bio->bi_sector, bio->bi_size,
471 size, err);
472 if (err <= 0)
473 goto err_out_free_page;
474
475 total_size -= size;
476 }
477
478 return 0;
479
480err_out_free_page:
481 __free_page(page);
482err_out_exit:
483 return err;
484}
485
486/*
487 * Allocate write request for the server.
488 * Should not only get pages, but also read data from the network.
489 */
490static int dst_export_write_request(struct dst_state *st,
491 struct bio *bio, unsigned int total_size)
492{
493 unsigned int size;
494 struct page *page;
495 void *data;
496 int err;
497
498 while (total_size) {
499 err = -ENOMEM;
500 page = alloc_page(GFP_KERNEL);
501 if (!page)
502 goto err_out_exit;
503
504 data = kmap(page);
505 if (!data)
506 goto err_out_free_page;
507
508 size = min_t(unsigned int, PAGE_SIZE, total_size);
509
510 err = dst_data_recv(st, data, size);
511 if (err)
512 goto err_out_unmap_page;
513
514 err = bio_add_page(bio, page, size, 0);
515 if (err <= 0)
516 goto err_out_unmap_page;
517
518 kunmap(page);
519
520 total_size -= size;
521 }
522
523 return 0;
524
525err_out_unmap_page:
526 kunmap(page);
527err_out_free_page:
528 __free_page(page);
529err_out_exit:
530 return err;
531}
532
533/*
534 * Groovy, we've gotten an IO request from the client.
535 * Allocate BIO from the bioset, private data from the mempool
536 * and lots of pages for IO.
537 */
538int dst_process_io(struct dst_state *st)
539{
540 struct dst_node *n = st->node;
541 struct dst_cmd *cmd = st->data;
542 struct bio *bio;
543 struct dst_export_priv *priv;
544 int err = -ENOMEM;
545
546 if (unlikely(!n->bdev)) {
547 err = -EINVAL;
548 goto err_out_exit;
549 }
550
551 bio = bio_alloc_bioset(GFP_KERNEL,
552 PAGE_ALIGN(cmd->size) >> PAGE_SHIFT,
553 dst_bio_set);
554 if (!bio)
555 goto err_out_exit;
556
557 priv = (struct dst_export_priv *)(((void *)bio) -
558 sizeof (struct dst_export_priv));
559
560 priv->state = dst_state_get(st);
561 priv->bio = bio;
562
563 bio->bi_private = priv;
564 bio->bi_end_io = dst_bio_end_io;
565 bio->bi_destructor = dst_bio_destructor;
566 bio->bi_bdev = n->bdev;
567
568 /*
569 * Server side is only interested in two low bits:
570 * uptodate (set by itself actually) and rw block
571 */
572 bio->bi_flags |= cmd->flags & 3;
573
574 bio->bi_rw = cmd->rw;
575 bio->bi_size = 0;
576 bio->bi_sector = cmd->sector;
577
578 dst_bio_to_cmd(bio, &priv->cmd, DST_IO_RESPONSE, cmd->id);
579
580 priv->cmd.flags = 0;
581 priv->cmd.size = cmd->size;
582
583 if (bio_data_dir(bio) == WRITE) {
584 err = dst_recv_cdata(st, priv->cmd.hash);
585 if (err)
586 goto err_out_free;
587
588 err = dst_export_write_request(st, bio, cmd->size);
589 if (err)
590 goto err_out_free;
591
592 if (dst_need_crypto(n))
593 return dst_export_crypto(n, bio);
594 } else {
595 err = dst_export_read_request(bio, cmd->size);
596 if (err)
597 goto err_out_free;
598 }
599
600 dprintk("%s: bio: %llu/%u, rw: %lu, dir: %lu, flags: %lx, phys: %d.\n",
601 __func__, (u64)bio->bi_sector, bio->bi_size,
602 bio->bi_rw, bio_data_dir(bio),
603 bio->bi_flags, bio->bi_phys_segments);
604
605 generic_make_request(bio);
606
607 return 0;
608
609err_out_free:
610 bio_put(bio);
611err_out_exit:
612 return err;
613}
614
615/*
616 * Ok, block IO is ready, let's send it back to the client...
617 */
618int dst_export_send_bio(struct bio *bio)
619{
620 struct dst_export_priv *p = bio->bi_private;
621 struct dst_state *st = p->state;
622 struct dst_cmd *cmd = &p->cmd;
623 int err;
624
625 dprintk("%s: id: %llu, bio: %llu/%u, csize: %u, flags: %lu, rw: %lu.\n",
626 __func__, cmd->id, (u64)bio->bi_sector, bio->bi_size,
627 cmd->csize, bio->bi_flags, bio->bi_rw);
628
629 dst_convert_cmd(cmd);
630
631 dst_state_lock(st);
632 if (!st->socket) {
633 err = -ECONNRESET;
634 goto err_out_unlock;
635 }
636
637 if (bio_data_dir(bio) == WRITE) {
638 /* ... or just confirmation that writing has completed. */
639 cmd->size = cmd->csize = 0;
640 err = dst_data_send_header(st->socket, cmd,
641 sizeof(struct dst_cmd), 0);
642 if (err)
643 goto err_out_unlock;
644 } else {
645 err = dst_send_bio(st, cmd, bio);
646 if (err)
647 goto err_out_unlock;
648 }
649
650 dst_state_unlock(st);
651
652 bio_put(bio);
653 return 0;
654
655err_out_unlock:
656 dst_state_unlock(st);
657
658 bio_put(bio);
659 return err;
660}
diff --git a/drivers/staging/dst/state.c b/drivers/staging/dst/state.c
deleted file mode 100644
index 02a05e6c48c3..000000000000
--- a/drivers/staging/dst/state.c
+++ /dev/null
@@ -1,844 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/buffer_head.h>
17#include <linux/blkdev.h>
18#include <linux/bio.h>
19#include <linux/connector.h>
20#include <linux/dst.h>
21#include <linux/device.h>
22#include <linux/in.h>
23#include <linux/in6.h>
24#include <linux/socket.h>
25#include <linux/slab.h>
26
27#include <net/sock.h>
28
29/*
30 * Polling machinery.
31 */
32
33struct dst_poll_helper {
34 poll_table pt;
35 struct dst_state *st;
36};
37
38static int dst_queue_wake(wait_queue_t *wait, unsigned mode,
39 int sync, void *key)
40{
41 struct dst_state *st = container_of(wait, struct dst_state, wait);
42
43 wake_up(&st->thread_wait);
44 return 1;
45}
46
47static void dst_queue_func(struct file *file, wait_queue_head_t *whead,
48 poll_table *pt)
49{
50 struct dst_state *st = container_of(pt, struct dst_poll_helper, pt)->st;
51
52 st->whead = whead;
53 init_waitqueue_func_entry(&st->wait, dst_queue_wake);
54 add_wait_queue(whead, &st->wait);
55}
56
57void dst_poll_exit(struct dst_state *st)
58{
59 if (st->whead) {
60 remove_wait_queue(st->whead, &st->wait);
61 st->whead = NULL;
62 }
63}
64
65int dst_poll_init(struct dst_state *st)
66{
67 struct dst_poll_helper ph;
68
69 ph.st = st;
70 init_poll_funcptr(&ph.pt, &dst_queue_func);
71
72 st->socket->ops->poll(NULL, st->socket, &ph.pt);
73 return 0;
74}
75
76/*
77 * Header receiving function - may block.
78 */
79static int dst_data_recv_header(struct socket *sock,
80 void *data, unsigned int size, int block)
81{
82 struct msghdr msg;
83 struct kvec iov;
84 int err;
85
86 iov.iov_base = data;
87 iov.iov_len = size;
88
89 msg.msg_iov = (struct iovec *)&iov;
90 msg.msg_iovlen = 1;
91 msg.msg_name = NULL;
92 msg.msg_namelen = 0;
93 msg.msg_control = NULL;
94 msg.msg_controllen = 0;
95 msg.msg_flags = (block) ? MSG_WAITALL : MSG_DONTWAIT;
96
97 err = kernel_recvmsg(sock, &msg, &iov, 1, iov.iov_len,
98 msg.msg_flags);
99 if (err != size)
100 return -1;
101
102 return 0;
103}
104
105/*
106 * Header sending function - may block.
107 */
108int dst_data_send_header(struct socket *sock,
109 void *data, unsigned int size, int more)
110{
111 struct msghdr msg;
112 struct kvec iov;
113 int err;
114
115 iov.iov_base = data;
116 iov.iov_len = size;
117
118 msg.msg_iov = (struct iovec *)&iov;
119 msg.msg_iovlen = 1;
120 msg.msg_name = NULL;
121 msg.msg_namelen = 0;
122 msg.msg_control = NULL;
123 msg.msg_controllen = 0;
124 msg.msg_flags = MSG_WAITALL | (more ? MSG_MORE : 0);
125
126 err = kernel_sendmsg(sock, &msg, &iov, 1, iov.iov_len);
127 if (err != size) {
128 dprintk("%s: size: %u, more: %d, err: %d.\n",
129 __func__, size, more, err);
130 return -1;
131 }
132
133 return 0;
134}
135
136/*
137 * Block autoconfiguration: request size of the storage and permissions.
138 */
139static int dst_request_remote_config(struct dst_state *st)
140{
141 struct dst_node *n = st->node;
142 int err = -EINVAL;
143 struct dst_cmd *cmd = st->data;
144
145 memset(cmd, 0, sizeof(struct dst_cmd));
146 cmd->cmd = DST_CFG;
147
148 dst_convert_cmd(cmd);
149
150 err = dst_data_send_header(st->socket, cmd, sizeof(struct dst_cmd), 0);
151 if (err)
152 goto out;
153
154 err = dst_data_recv_header(st->socket, cmd, sizeof(struct dst_cmd), 1);
155 if (err)
156 goto out;
157
158 dst_convert_cmd(cmd);
159
160 if (cmd->cmd != DST_CFG) {
161 err = -EINVAL;
162 dprintk("%s: checking result: cmd: %d, size reported: %llu.\n",
163 __func__, cmd->cmd, cmd->sector);
164 goto out;
165 }
166
167 if (n->size != 0)
168 n->size = min_t(loff_t, n->size, cmd->sector);
169 else
170 n->size = cmd->sector;
171
172 n->info->size = n->size;
173 st->permissions = cmd->rw;
174
175out:
176 dprintk("%s: n: %p, err: %d, size: %llu, permission: %x.\n",
177 __func__, n, err, n->size, st->permissions);
178 return err;
179}
180
181/*
182 * Socket machinery.
183 */
184
185#define DST_DEFAULT_TIMEO 20000
186
187int dst_state_socket_create(struct dst_state *st)
188{
189 int err;
190 struct socket *sock;
191 struct dst_network_ctl *ctl = &st->ctl;
192
193 err = sock_create(ctl->addr.sa_family, ctl->type, ctl->proto, &sock);
194 if (err < 0)
195 return err;
196
197 sock->sk->sk_sndtimeo = sock->sk->sk_rcvtimeo =
198 msecs_to_jiffies(DST_DEFAULT_TIMEO);
199 sock->sk->sk_allocation = GFP_NOIO;
200
201 st->socket = st->read_socket = sock;
202 return 0;
203}
204
205void dst_state_socket_release(struct dst_state *st)
206{
207 dprintk("%s: st: %p, socket: %p, n: %p.\n",
208 __func__, st, st->socket, st->node);
209 if (st->socket) {
210 sock_release(st->socket);
211 st->socket = NULL;
212 st->read_socket = NULL;
213 }
214}
215
216void dst_dump_addr(struct socket *sk, struct sockaddr *sa, char *str)
217{
218 if (sk->ops->family == AF_INET) {
219 struct sockaddr_in *sin = (struct sockaddr_in *)sa;
220 printk(KERN_INFO "%s %u.%u.%u.%u:%d.\n", str,
221 NIPQUAD(sin->sin_addr.s_addr), ntohs(sin->sin_port));
222 } else if (sk->ops->family == AF_INET6) {
223 struct sockaddr_in6 *sin = (struct sockaddr_in6 *)sa;
224 printk(KERN_INFO "%s %pi6:%d",
225 str, &sin->sin6_addr, ntohs(sin->sin6_port));
226 }
227}
228
229void dst_state_exit_connected(struct dst_state *st)
230{
231 if (st->socket) {
232 dst_poll_exit(st);
233 st->socket->ops->shutdown(st->socket, 2);
234
235 dst_dump_addr(st->socket, (struct sockaddr *)&st->ctl.addr,
236 "Disconnected peer");
237 dst_state_socket_release(st);
238 }
239}
240
241static int dst_state_init_connected(struct dst_state *st)
242{
243 int err;
244 struct dst_network_ctl *ctl = &st->ctl;
245
246 err = dst_state_socket_create(st);
247 if (err)
248 goto err_out_exit;
249
250 err = kernel_connect(st->socket, (struct sockaddr *)&st->ctl.addr,
251 st->ctl.addr.sa_data_len, 0);
252 if (err)
253 goto err_out_release;
254
255 err = dst_poll_init(st);
256 if (err)
257 goto err_out_release;
258
259 dst_dump_addr(st->socket, (struct sockaddr *)&ctl->addr,
260 "Connected to peer");
261
262 return 0;
263
264err_out_release:
265 dst_state_socket_release(st);
266err_out_exit:
267 return err;
268}
269
270/*
271 * State reset is used to reconnect to the remote peer.
272 * May fail, but who cares, we will try again later.
273 */
274static inline void dst_state_reset_nolock(struct dst_state *st)
275{
276 dst_state_exit_connected(st);
277 dst_state_init_connected(st);
278}
279
280static inline void dst_state_reset(struct dst_state *st)
281{
282 dst_state_lock(st);
283 dst_state_reset_nolock(st);
284 dst_state_unlock(st);
285}
286
287/*
288 * Basic network sending/receiving functions.
289 * Blocked mode is used.
290 */
291static int dst_data_recv_raw(struct dst_state *st, void *buf, u64 size)
292{
293 struct msghdr msg;
294 struct kvec iov;
295 int err;
296
297 BUG_ON(!size);
298
299 iov.iov_base = buf;
300 iov.iov_len = size;
301
302 msg.msg_iov = (struct iovec *)&iov;
303 msg.msg_iovlen = 1;
304 msg.msg_name = NULL;
305 msg.msg_namelen = 0;
306 msg.msg_control = NULL;
307 msg.msg_controllen = 0;
308 msg.msg_flags = MSG_DONTWAIT;
309
310 err = kernel_recvmsg(st->socket, &msg, &iov, 1, iov.iov_len,
311 msg.msg_flags);
312 if (err <= 0) {
313 dprintk("%s: failed to recv data: size: %llu, err: %d.\n",
314 __func__, size, err);
315 if (err == 0)
316 err = -ECONNRESET;
317
318 dst_state_exit_connected(st);
319 }
320
321 return err;
322}
323
324/*
325 * Ping command to early detect failed nodes.
326 */
327static int dst_send_ping(struct dst_state *st)
328{
329 struct dst_cmd *cmd = st->data;
330 int err = -ECONNRESET;
331
332 dst_state_lock(st);
333 if (st->socket) {
334 memset(cmd, 0, sizeof(struct dst_cmd));
335
336 cmd->cmd = __cpu_to_be32(DST_PING);
337
338 err = dst_data_send_header(st->socket, cmd,
339 sizeof(struct dst_cmd), 0);
340 }
341 dprintk("%s: st: %p, socket: %p, err: %d.\n", __func__,
342 st, st->socket, err);
343 dst_state_unlock(st);
344
345 return err;
346}
347
348/*
349 * Receiving function, which should either return error or read
350 * whole block request. If there was no traffic for a one second,
351 * send a ping, since remote node may die.
352 */
353int dst_data_recv(struct dst_state *st, void *data, unsigned int size)
354{
355 unsigned int revents = 0;
356 unsigned int err_mask = POLLERR | POLLHUP | POLLRDHUP;
357 unsigned int mask = err_mask | POLLIN;
358 struct dst_node *n = st->node;
359 int err = 0;
360
361 while (size && !err) {
362 revents = dst_state_poll(st);
363
364 if (!(revents & mask)) {
365 DEFINE_WAIT(wait);
366
367 for (;;) {
368 prepare_to_wait(&st->thread_wait, &wait,
369 TASK_INTERRUPTIBLE);
370 if (!n->trans_scan_timeout || st->need_exit)
371 break;
372
373 revents = dst_state_poll(st);
374
375 if (revents & mask)
376 break;
377
378 if (signal_pending(current))
379 break;
380
381 if (!schedule_timeout(HZ)) {
382 err = dst_send_ping(st);
383 if (err)
384 return err;
385 }
386
387 continue;
388 }
389 finish_wait(&st->thread_wait, &wait);
390 }
391
392 err = -ECONNRESET;
393 dst_state_lock(st);
394
395 if (st->socket && (st->read_socket == st->socket) &&
396 (revents & POLLIN)) {
397 err = dst_data_recv_raw(st, data, size);
398 if (err > 0) {
399 data += err;
400 size -= err;
401 err = 0;
402 }
403 }
404
405 if (revents & err_mask || !st->socket) {
406 dprintk("%s: revents: %x, socket: %p, size: %u, "
407 "err: %d.\n", __func__, revents,
408 st->socket, size, err);
409 err = -ECONNRESET;
410 }
411
412 dst_state_unlock(st);
413
414 if (!n->trans_scan_timeout)
415 err = -ENODEV;
416 }
417
418 return err;
419}
420
421/*
422 * Send block autoconf reply.
423 */
424static int dst_process_cfg(struct dst_state *st)
425{
426 struct dst_node *n = st->node;
427 struct dst_cmd *cmd = st->data;
428 int err;
429
430 cmd->sector = n->size;
431 cmd->rw = st->permissions;
432
433 dst_convert_cmd(cmd);
434
435 dst_state_lock(st);
436 err = dst_data_send_header(st->socket, cmd, sizeof(struct dst_cmd), 0);
437 dst_state_unlock(st);
438
439 return err;
440}
441
442/*
443 * Receive block IO from the network.
444 */
445static int dst_recv_bio(struct dst_state *st, struct bio *bio,
446 unsigned int total_size)
447{
448 struct bio_vec *bv;
449 int i, err;
450 void *data;
451 unsigned int sz;
452
453 bio_for_each_segment(bv, bio, i) {
454 sz = min(total_size, bv->bv_len);
455
456 dprintk("%s: bio: %llu/%u, total: %u, len: %u, sz: %u, "
457 "off: %u.\n", __func__, (u64)bio->bi_sector,
458 bio->bi_size, total_size, bv->bv_len, sz,
459 bv->bv_offset);
460
461 data = kmap(bv->bv_page) + bv->bv_offset;
462 err = dst_data_recv(st, data, sz);
463 kunmap(bv->bv_page);
464
465 bv->bv_len = sz;
466
467 if (err)
468 return err;
469
470 total_size -= sz;
471 if (total_size == 0)
472 break;
473 }
474
475 return 0;
476}
477
478/*
479 * Our block IO has just completed and arrived: get it.
480 */
481static int dst_process_io_response(struct dst_state *st)
482{
483 struct dst_node *n = st->node;
484 struct dst_cmd *cmd = st->data;
485 struct dst_trans *t;
486 int err = 0;
487 struct bio *bio;
488
489 mutex_lock(&n->trans_lock);
490 t = dst_trans_search(n, cmd->id);
491 mutex_unlock(&n->trans_lock);
492
493 if (!t)
494 goto err_out_exit;
495
496 bio = t->bio;
497
498 dprintk("%s: bio: %llu/%u, cmd_size: %u, csize: %u, dir: %lu.\n",
499 __func__, (u64)bio->bi_sector, bio->bi_size, cmd->size,
500 cmd->csize, bio_data_dir(bio));
501
502 if (bio_data_dir(bio) == READ) {
503 if (bio->bi_size != cmd->size - cmd->csize)
504 goto err_out_exit;
505
506 if (dst_need_crypto(n)) {
507 err = dst_recv_cdata(st, t->cmd.hash);
508 if (err)
509 goto err_out_exit;
510 }
511
512 err = dst_recv_bio(st, t->bio, bio->bi_size);
513 if (err)
514 goto err_out_exit;
515
516 if (dst_need_crypto(n))
517 return dst_trans_crypto(t);
518 } else {
519 err = -EBADMSG;
520 if (cmd->size || cmd->csize)
521 goto err_out_exit;
522 }
523
524 dst_trans_remove(t);
525 dst_trans_put(t);
526
527 return 0;
528
529err_out_exit:
530 return err;
531}
532
533/*
534 * Receive crypto data.
535 */
536int dst_recv_cdata(struct dst_state *st, void *cdata)
537{
538 struct dst_cmd *cmd = st->data;
539 struct dst_node *n = st->node;
540 struct dst_crypto_ctl *c = &n->crypto;
541 int err;
542
543 if (cmd->csize != c->crypto_attached_size) {
544 dprintk("%s: cmd: cmd: %u, sector: %llu, size: %u, "
545 "csize: %u != digest size %u.\n",
546 __func__, cmd->cmd, cmd->sector, cmd->size,
547 cmd->csize, c->crypto_attached_size);
548 err = -EINVAL;
549 goto err_out_exit;
550 }
551
552 err = dst_data_recv(st, cdata, cmd->csize);
553 if (err)
554 goto err_out_exit;
555
556 cmd->size -= cmd->csize;
557 return 0;
558
559err_out_exit:
560 return err;
561}
562
563/*
564 * Receive the command and start its processing.
565 */
566static int dst_recv_processing(struct dst_state *st)
567{
568 int err = -EINTR;
569 struct dst_cmd *cmd = st->data;
570
571 /*
572 * If socket will be reset after this statement, then
573 * dst_data_recv() will just fail and loop will
574 * start again, so it can be done without any locks.
575 *
576 * st->read_socket is needed to prevents state machine
577 * breaking between this data reading and subsequent one
578 * in protocol specific functions during connection reset.
579 * In case of reset we have to read next command and do
580 * not expect data for old command to magically appear in
581 * new connection.
582 */
583 st->read_socket = st->socket;
584 err = dst_data_recv(st, cmd, sizeof(struct dst_cmd));
585 if (err)
586 goto out_exit;
587
588 dst_convert_cmd(cmd);
589
590 dprintk("%s: cmd: %u, size: %u, csize: %u, id: %llu, "
591 "sector: %llu, flags: %llx, rw: %llx.\n",
592 __func__, cmd->cmd, cmd->size,
593 cmd->csize, cmd->id, cmd->sector,
594 cmd->flags, cmd->rw);
595
596 /*
597 * This should catch protocol breakage and random garbage
598 * instead of commands.
599 */
600 if (unlikely(cmd->csize > st->size - sizeof(struct dst_cmd))) {
601 err = -EBADMSG;
602 goto out_exit;
603 }
604
605 err = -EPROTO;
606 switch (cmd->cmd) {
607 case DST_IO_RESPONSE:
608 err = dst_process_io_response(st);
609 break;
610 case DST_IO:
611 err = dst_process_io(st);
612 break;
613 case DST_CFG:
614 err = dst_process_cfg(st);
615 break;
616 case DST_PING:
617 err = 0;
618 break;
619 default:
620 break;
621 }
622
623out_exit:
624 return err;
625}
626
627/*
628 * Receiving thread. For the client node we should try to reconnect,
629 * for accepted client we just drop the state and expect it to reconnect.
630 */
631static int dst_recv(void *init_data, void *schedule_data)
632{
633 struct dst_state *st = schedule_data;
634 struct dst_node *n = init_data;
635 int err = 0;
636
637 dprintk("%s: start st: %p, n: %p, scan: %lu, need_exit: %d.\n",
638 __func__, st, n, n->trans_scan_timeout, st->need_exit);
639
640 while (n->trans_scan_timeout && !st->need_exit) {
641 err = dst_recv_processing(st);
642 if (err < 0) {
643 if (!st->ctl.type)
644 break;
645
646 if (!n->trans_scan_timeout || st->need_exit)
647 break;
648
649 dst_state_reset(st);
650 msleep(1000);
651 }
652 }
653
654 st->need_exit = 1;
655 wake_up(&st->thread_wait);
656
657 dprintk("%s: freeing receiving socket st: %p.\n", __func__, st);
658 dst_state_lock(st);
659 dst_state_exit_connected(st);
660 dst_state_unlock(st);
661 dst_state_put(st);
662
663 dprintk("%s: freed receiving socket st: %p.\n", __func__, st);
664
665 return err;
666}
667
668/*
669 * Network state dies here and borns couple of lines below.
670 * This object is the main network state processing engine:
671 * sending, receiving, reconnections, all network related
672 * tasks are handled on behalf of the state.
673 */
674static void dst_state_free(struct dst_state *st)
675{
676 dprintk("%s: st: %p.\n", __func__, st);
677 if (st->cleanup)
678 st->cleanup(st);
679 kfree(st->data);
680 kfree(st);
681}
682
683struct dst_state *dst_state_alloc(struct dst_node *n)
684{
685 struct dst_state *st;
686 int err = -ENOMEM;
687
688 st = kzalloc(sizeof(struct dst_state), GFP_KERNEL);
689 if (!st)
690 goto err_out_exit;
691
692 st->node = n;
693 st->need_exit = 0;
694
695 st->size = PAGE_SIZE;
696 st->data = kmalloc(st->size, GFP_KERNEL);
697 if (!st->data)
698 goto err_out_free;
699
700 spin_lock_init(&st->request_lock);
701 INIT_LIST_HEAD(&st->request_list);
702
703 mutex_init(&st->state_lock);
704 init_waitqueue_head(&st->thread_wait);
705
706 /*
707 * One for processing thread, another one for node itself.
708 */
709 atomic_set(&st->refcnt, 2);
710
711 dprintk("%s: st: %p, n: %p.\n", __func__, st, st->node);
712
713 return st;
714
715err_out_free:
716 kfree(st);
717err_out_exit:
718 return ERR_PTR(err);
719}
720
721int dst_state_schedule_receiver(struct dst_state *st)
722{
723 return thread_pool_schedule_private(st->node->pool, dst_thread_setup,
724 dst_recv, st, MAX_SCHEDULE_TIMEOUT, st->node);
725}
726
727/*
728 * Initialize client's connection to the remote peer: allocate state,
729 * connect and perform block IO autoconfiguration.
730 */
731int dst_node_init_connected(struct dst_node *n, struct dst_network_ctl *r)
732{
733 struct dst_state *st;
734 int err = -ENOMEM;
735
736 st = dst_state_alloc(n);
737 if (IS_ERR(st)) {
738 err = PTR_ERR(st);
739 goto err_out_exit;
740 }
741 memcpy(&st->ctl, r, sizeof(struct dst_network_ctl));
742
743 err = dst_state_init_connected(st);
744 if (err)
745 goto err_out_free_data;
746
747 err = dst_request_remote_config(st);
748 if (err)
749 goto err_out_exit_connected;
750 n->state = st;
751
752 err = dst_state_schedule_receiver(st);
753 if (err)
754 goto err_out_exit_connected;
755
756 return 0;
757
758err_out_exit_connected:
759 dst_state_exit_connected(st);
760err_out_free_data:
761 dst_state_free(st);
762err_out_exit:
763 n->state = NULL;
764 return err;
765}
766
767void dst_state_put(struct dst_state *st)
768{
769 dprintk("%s: st: %p, refcnt: %d.\n",
770 __func__, st, atomic_read(&st->refcnt));
771 if (atomic_dec_and_test(&st->refcnt))
772 dst_state_free(st);
773}
774
775/*
776 * Send block IO to the network one by one using zero-copy ->sendpage().
777 */
778int dst_send_bio(struct dst_state *st, struct dst_cmd *cmd, struct bio *bio)
779{
780 struct bio_vec *bv;
781 struct dst_crypto_ctl *c = &st->node->crypto;
782 int err, i = 0;
783 int flags = MSG_WAITALL;
784
785 err = dst_data_send_header(st->socket, cmd,
786 sizeof(struct dst_cmd) + c->crypto_attached_size, bio->bi_vcnt);
787 if (err)
788 goto err_out_exit;
789
790 bio_for_each_segment(bv, bio, i) {
791 if (i < bio->bi_vcnt - 1)
792 flags |= MSG_MORE;
793
794 err = kernel_sendpage(st->socket, bv->bv_page, bv->bv_offset,
795 bv->bv_len, flags);
796 if (err <= 0)
797 goto err_out_exit;
798 }
799
800 return 0;
801
802err_out_exit:
803 dprintk("%s: %d/%d, flags: %x, err: %d.\n",
804 __func__, i, bio->bi_vcnt, flags, err);
805 return err;
806}
807
808/*
809 * Send transaction to the remote peer.
810 */
811int dst_trans_send(struct dst_trans *t)
812{
813 int err;
814 struct dst_state *st = t->n->state;
815 struct bio *bio = t->bio;
816
817 dst_convert_cmd(&t->cmd);
818
819 dst_state_lock(st);
820 if (!st->socket) {
821 err = dst_state_init_connected(st);
822 if (err)
823 goto err_out_unlock;
824 }
825
826 if (bio_data_dir(bio) == WRITE) {
827 err = dst_send_bio(st, &t->cmd, t->bio);
828 } else {
829 err = dst_data_send_header(st->socket, &t->cmd,
830 sizeof(struct dst_cmd), 0);
831 }
832 if (err)
833 goto err_out_reset;
834
835 dst_state_unlock(st);
836 return 0;
837
838err_out_reset:
839 dst_state_reset_nolock(st);
840err_out_unlock:
841 dst_state_unlock(st);
842
843 return err;
844}
diff --git a/drivers/staging/dst/thread_pool.c b/drivers/staging/dst/thread_pool.c
deleted file mode 100644
index 29a82b2602f3..000000000000
--- a/drivers/staging/dst/thread_pool.c
+++ /dev/null
@@ -1,348 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/kernel.h>
17#include <linux/dst.h>
18#include <linux/kthread.h>
19#include <linux/slab.h>
20
21/*
22 * Thread pool abstraction allows to schedule a work to be performed
23 * on behalf of kernel thread. One does not operate with threads itself,
24 * instead user provides setup and cleanup callbacks for thread pool itself,
25 * and action and cleanup callbacks for each submitted work.
26 *
27 * Each worker has private data initialized at creation time and data,
28 * provided by user at scheduling time.
29 *
30 * When action is being performed, thread can not be used by other users,
31 * instead they will sleep until there is free thread to pick their work.
32 */
33struct thread_pool_worker {
34 struct list_head worker_entry;
35
36 struct task_struct *thread;
37
38 struct thread_pool *pool;
39
40 int error;
41 int has_data;
42 int need_exit;
43 unsigned int id;
44
45 wait_queue_head_t wait;
46
47 void *private;
48 void *schedule_data;
49
50 int (*action)(void *private, void *schedule_data);
51 void (*cleanup)(void *private);
52};
53
54static void thread_pool_exit_worker(struct thread_pool_worker *w)
55{
56 kthread_stop(w->thread);
57
58 w->cleanup(w->private);
59 kfree(w);
60}
61
62/*
63 * Called to mark thread as ready and allow users to schedule new work.
64 */
65static void thread_pool_worker_make_ready(struct thread_pool_worker *w)
66{
67 struct thread_pool *p = w->pool;
68
69 mutex_lock(&p->thread_lock);
70
71 if (!w->need_exit) {
72 list_move_tail(&w->worker_entry, &p->ready_list);
73 w->has_data = 0;
74 mutex_unlock(&p->thread_lock);
75
76 wake_up(&p->wait);
77 } else {
78 p->thread_num--;
79 list_del(&w->worker_entry);
80 mutex_unlock(&p->thread_lock);
81
82 thread_pool_exit_worker(w);
83 }
84}
85
86/*
87 * Thread action loop: waits until there is new work.
88 */
89static int thread_pool_worker_func(void *data)
90{
91 struct thread_pool_worker *w = data;
92
93 while (!kthread_should_stop()) {
94 wait_event_interruptible(w->wait,
95 kthread_should_stop() || w->has_data);
96
97 if (kthread_should_stop())
98 break;
99
100 if (!w->has_data)
101 continue;
102
103 w->action(w->private, w->schedule_data);
104 thread_pool_worker_make_ready(w);
105 }
106
107 return 0;
108}
109
110/*
111 * Remove single worker without specifying which one.
112 */
113void thread_pool_del_worker(struct thread_pool *p)
114{
115 struct thread_pool_worker *w = NULL;
116
117 while (!w && p->thread_num) {
118 wait_event(p->wait, !list_empty(&p->ready_list) ||
119 !p->thread_num);
120
121 dprintk("%s: locking list_empty: %d, thread_num: %d.\n",
122 __func__, list_empty(&p->ready_list),
123 p->thread_num);
124
125 mutex_lock(&p->thread_lock);
126 if (!list_empty(&p->ready_list)) {
127 w = list_first_entry(&p->ready_list,
128 struct thread_pool_worker,
129 worker_entry);
130
131 dprintk("%s: deleting w: %p, thread_num: %d, "
132 "list: %p [%p.%p].\n", __func__,
133 w, p->thread_num, &p->ready_list,
134 p->ready_list.prev, p->ready_list.next);
135
136 p->thread_num--;
137 list_del(&w->worker_entry);
138 }
139 mutex_unlock(&p->thread_lock);
140 }
141
142 if (w)
143 thread_pool_exit_worker(w);
144 dprintk("%s: deleted w: %p, thread_num: %d.\n",
145 __func__, w, p->thread_num);
146}
147
148/*
149 * Remove a worker with given ID.
150 */
151void thread_pool_del_worker_id(struct thread_pool *p, unsigned int id)
152{
153 struct thread_pool_worker *w;
154 int found = 0;
155
156 mutex_lock(&p->thread_lock);
157 list_for_each_entry(w, &p->ready_list, worker_entry) {
158 if (w->id == id) {
159 found = 1;
160 p->thread_num--;
161 list_del(&w->worker_entry);
162 break;
163 }
164 }
165
166 if (!found) {
167 list_for_each_entry(w, &p->active_list, worker_entry) {
168 if (w->id == id) {
169 w->need_exit = 1;
170 break;
171 }
172 }
173 }
174 mutex_unlock(&p->thread_lock);
175
176 if (found)
177 thread_pool_exit_worker(w);
178}
179
180/*
181 * Add new worker thread with given parameters.
182 * If initialization callback fails, return error.
183 */
184int thread_pool_add_worker(struct thread_pool *p,
185 char *name,
186 unsigned int id,
187 void *(*init)(void *private),
188 void (*cleanup)(void *private),
189 void *private)
190{
191 struct thread_pool_worker *w;
192 int err = -ENOMEM;
193
194 w = kzalloc(sizeof(struct thread_pool_worker), GFP_KERNEL);
195 if (!w)
196 goto err_out_exit;
197
198 w->pool = p;
199 init_waitqueue_head(&w->wait);
200 w->cleanup = cleanup;
201 w->id = id;
202
203 w->thread = kthread_run(thread_pool_worker_func, w, "%s", name);
204 if (IS_ERR(w->thread)) {
205 err = PTR_ERR(w->thread);
206 goto err_out_free;
207 }
208
209 w->private = init(private);
210 if (IS_ERR(w->private)) {
211 err = PTR_ERR(w->private);
212 goto err_out_stop_thread;
213 }
214
215 mutex_lock(&p->thread_lock);
216 list_add_tail(&w->worker_entry, &p->ready_list);
217 p->thread_num++;
218 mutex_unlock(&p->thread_lock);
219
220 return 0;
221
222err_out_stop_thread:
223 kthread_stop(w->thread);
224err_out_free:
225 kfree(w);
226err_out_exit:
227 return err;
228}
229
230/*
231 * Destroy the whole pool.
232 */
233void thread_pool_destroy(struct thread_pool *p)
234{
235 while (p->thread_num) {
236 dprintk("%s: num: %d.\n", __func__, p->thread_num);
237 thread_pool_del_worker(p);
238 }
239
240 kfree(p);
241}
242
243/*
244 * Create a pool with given number of threads.
245 * They will have sequential IDs started from zero.
246 */
247struct thread_pool *thread_pool_create(int num, char *name,
248 void *(*init)(void *private),
249 void (*cleanup)(void *private),
250 void *private)
251{
252 struct thread_pool_worker *w, *tmp;
253 struct thread_pool *p;
254 int err = -ENOMEM;
255 int i;
256
257 p = kzalloc(sizeof(struct thread_pool), GFP_KERNEL);
258 if (!p)
259 goto err_out_exit;
260
261 init_waitqueue_head(&p->wait);
262 mutex_init(&p->thread_lock);
263 INIT_LIST_HEAD(&p->ready_list);
264 INIT_LIST_HEAD(&p->active_list);
265 p->thread_num = 0;
266
267 for (i = 0; i < num; ++i) {
268 err = thread_pool_add_worker(p, name, i, init,
269 cleanup, private);
270 if (err)
271 goto err_out_free_all;
272 }
273
274 return p;
275
276err_out_free_all:
277 list_for_each_entry_safe(w, tmp, &p->ready_list, worker_entry) {
278 list_del(&w->worker_entry);
279 thread_pool_exit_worker(w);
280 }
281 kfree(p);
282err_out_exit:
283 return ERR_PTR(err);
284}
285
286/*
287 * Schedule execution of the action on a given thread,
288 * provided ID pointer has to match previously stored
289 * private data.
290 */
291int thread_pool_schedule_private(struct thread_pool *p,
292 int (*setup)(void *private, void *data),
293 int (*action)(void *private, void *data),
294 void *data, long timeout, void *id)
295{
296 struct thread_pool_worker *w, *tmp, *worker = NULL;
297 int err = 0;
298
299 while (!worker && !err) {
300 timeout = wait_event_interruptible_timeout(p->wait,
301 !list_empty(&p->ready_list),
302 timeout);
303
304 if (!timeout) {
305 err = -ETIMEDOUT;
306 break;
307 }
308
309 worker = NULL;
310 mutex_lock(&p->thread_lock);
311 list_for_each_entry_safe(w, tmp, &p->ready_list, worker_entry) {
312 if (id && id != w->private)
313 continue;
314
315 worker = w;
316
317 list_move_tail(&w->worker_entry, &p->active_list);
318
319 err = setup(w->private, data);
320 if (!err) {
321 w->schedule_data = data;
322 w->action = action;
323 w->has_data = 1;
324 wake_up(&w->wait);
325 } else {
326 list_move_tail(&w->worker_entry,
327 &p->ready_list);
328 }
329
330 break;
331 }
332 mutex_unlock(&p->thread_lock);
333 }
334
335 return err;
336}
337
338/*
339 * Schedule execution on arbitrary thread from the pool.
340 */
341int thread_pool_schedule(struct thread_pool *p,
342 int (*setup)(void *private, void *data),
343 int (*action)(void *private, void *data),
344 void *data, long timeout)
345{
346 return thread_pool_schedule_private(p, setup,
347 action, data, timeout, NULL);
348}
diff --git a/drivers/staging/dst/trans.c b/drivers/staging/dst/trans.c
deleted file mode 100644
index 1c36a6bc31d5..000000000000
--- a/drivers/staging/dst/trans.c
+++ /dev/null
@@ -1,337 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <zbr@ioremap.net>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#include <linux/bio.h>
17#include <linux/dst.h>
18#include <linux/slab.h>
19#include <linux/mempool.h>
20
21/*
22 * Transaction memory pool size.
23 */
24static int dst_mempool_num = 32;
25module_param(dst_mempool_num, int, 0644);
26
27/*
28 * Transaction tree management.
29 */
30static inline int dst_trans_cmp(dst_gen_t gen, dst_gen_t new)
31{
32 if (gen < new)
33 return 1;
34 if (gen > new)
35 return -1;
36 return 0;
37}
38
39struct dst_trans *dst_trans_search(struct dst_node *node, dst_gen_t gen)
40{
41 struct rb_root *root = &node->trans_root;
42 struct rb_node *n = root->rb_node;
43 struct dst_trans *t, *ret = NULL;
44 int cmp;
45
46 while (n) {
47 t = rb_entry(n, struct dst_trans, trans_entry);
48
49 cmp = dst_trans_cmp(t->gen, gen);
50 if (cmp < 0)
51 n = n->rb_left;
52 else if (cmp > 0)
53 n = n->rb_right;
54 else {
55 ret = t;
56 break;
57 }
58 }
59
60 dprintk("%s: %s transaction: id: %llu.\n", __func__,
61 (ret) ? "found" : "not found", gen);
62
63 return ret;
64}
65
66static int dst_trans_insert(struct dst_trans *new)
67{
68 struct rb_root *root = &new->n->trans_root;
69 struct rb_node **n = &root->rb_node, *parent = NULL;
70 struct dst_trans *ret = NULL, *t;
71 int cmp;
72
73 while (*n) {
74 parent = *n;
75
76 t = rb_entry(parent, struct dst_trans, trans_entry);
77
78 cmp = dst_trans_cmp(t->gen, new->gen);
79 if (cmp < 0)
80 n = &parent->rb_left;
81 else if (cmp > 0)
82 n = &parent->rb_right;
83 else {
84 ret = t;
85 break;
86 }
87 }
88
89 new->send_time = jiffies;
90 if (ret) {
91 printk(KERN_DEBUG "%s: exist: old: gen: %llu, bio: %llu/%u, "
92 "send_time: %lu, new: gen: %llu, bio: %llu/%u, "
93 "send_time: %lu.\n", __func__,
94 ret->gen, (u64)ret->bio->bi_sector,
95 ret->bio->bi_size, ret->send_time,
96 new->gen, (u64)new->bio->bi_sector,
97 new->bio->bi_size, new->send_time);
98 return -EEXIST;
99 }
100
101 rb_link_node(&new->trans_entry, parent, n);
102 rb_insert_color(&new->trans_entry, root);
103
104 dprintk("%s: inserted: gen: %llu, bio: %llu/%u, send_time: %lu.\n",
105 __func__, new->gen, (u64)new->bio->bi_sector,
106 new->bio->bi_size, new->send_time);
107
108 return 0;
109}
110
111int dst_trans_remove_nolock(struct dst_trans *t)
112{
113 struct dst_node *n = t->n;
114
115 if (t->trans_entry.rb_parent_color) {
116 rb_erase(&t->trans_entry, &n->trans_root);
117 t->trans_entry.rb_parent_color = 0;
118 }
119 return 0;
120}
121
122int dst_trans_remove(struct dst_trans *t)
123{
124 int ret;
125 struct dst_node *n = t->n;
126
127 mutex_lock(&n->trans_lock);
128 ret = dst_trans_remove_nolock(t);
129 mutex_unlock(&n->trans_lock);
130
131 return ret;
132}
133
134/*
135 * When transaction is completed and there are no more users,
136 * we complete appriate block IO request with given error status.
137 */
138void dst_trans_put(struct dst_trans *t)
139{
140 if (atomic_dec_and_test(&t->refcnt)) {
141 struct bio *bio = t->bio;
142
143 dprintk("%s: completed t: %p, gen: %llu, bio: %p.\n",
144 __func__, t, t->gen, bio);
145
146 bio_endio(bio, t->error);
147 bio_put(bio);
148
149 dst_node_put(t->n);
150 mempool_free(t, t->n->trans_pool);
151 }
152}
153
154/*
155 * Process given block IO request: allocate transaction, insert it into the tree
156 * and send/schedule crypto processing.
157 */
158int dst_process_bio(struct dst_node *n, struct bio *bio)
159{
160 struct dst_trans *t;
161 int err = -ENOMEM;
162
163 t = mempool_alloc(n->trans_pool, GFP_NOFS);
164 if (!t)
165 goto err_out_exit;
166
167 t->n = dst_node_get(n);
168 t->bio = bio;
169 t->error = 0;
170 t->retries = 0;
171 atomic_set(&t->refcnt, 1);
172 t->gen = atomic_long_inc_return(&n->gen);
173
174 t->enc = bio_data_dir(bio);
175 dst_bio_to_cmd(bio, &t->cmd, DST_IO, t->gen);
176
177 mutex_lock(&n->trans_lock);
178 err = dst_trans_insert(t);
179 mutex_unlock(&n->trans_lock);
180 if (err)
181 goto err_out_free;
182
183 dprintk("%s: gen: %llu, bio: %llu/%u, dir/enc: %d, need_crypto: %d.\n",
184 __func__, t->gen, (u64)bio->bi_sector,
185 bio->bi_size, t->enc, dst_need_crypto(n));
186
187 if (dst_need_crypto(n) && t->enc)
188 dst_trans_crypto(t);
189 else
190 dst_trans_send(t);
191
192 return 0;
193
194err_out_free:
195 dst_node_put(n);
196 mempool_free(t, n->trans_pool);
197err_out_exit:
198 bio_endio(bio, err);
199 bio_put(bio);
200 return err;
201}
202
203/*
204 * Scan for timeout/stale transactions.
205 * Each transaction is being resent multiple times before error completion.
206 */
207static void dst_trans_scan(struct work_struct *work)
208{
209 struct dst_node *n = container_of(work, struct dst_node,
210 trans_work.work);
211 struct rb_node *rb_node;
212 struct dst_trans *t;
213 unsigned long timeout = n->trans_scan_timeout;
214 int num = 10 * n->trans_max_retries;
215
216 mutex_lock(&n->trans_lock);
217
218 for (rb_node = rb_first(&n->trans_root); rb_node; ) {
219 t = rb_entry(rb_node, struct dst_trans, trans_entry);
220
221 if (timeout && time_after(t->send_time + timeout, jiffies)
222 && t->retries == 0)
223 break;
224#if 0
225 dprintk("%s: t: %p, gen: %llu, n: %s, retries: %u, max: %u.\n",
226 __func__, t, t->gen, n->name,
227 t->retries, n->trans_max_retries);
228#endif
229 if (--num == 0)
230 break;
231
232 dst_trans_get(t);
233
234 rb_node = rb_next(rb_node);
235
236 if (timeout && (++t->retries < n->trans_max_retries)) {
237 dst_trans_send(t);
238 } else {
239 t->error = -ETIMEDOUT;
240 dst_trans_remove_nolock(t);
241 dst_trans_put(t);
242 }
243
244 dst_trans_put(t);
245 }
246
247 mutex_unlock(&n->trans_lock);
248
249 /*
250 * If no timeout specified then system is in the middle of exiting
251 * process, so no need to reschedule scanning process again.
252 */
253 if (timeout) {
254 if (!num)
255 timeout = HZ;
256 schedule_delayed_work(&n->trans_work, timeout);
257 }
258}
259
260/*
261 * Flush all transactions and mark them as timed out.
262 * Destroy transaction pools.
263 */
264void dst_node_trans_exit(struct dst_node *n)
265{
266 struct dst_trans *t;
267 struct rb_node *rb_node;
268
269 if (!n->trans_cache)
270 return;
271
272 dprintk("%s: n: %p, cancelling the work.\n", __func__, n);
273 cancel_delayed_work_sync(&n->trans_work);
274 flush_scheduled_work();
275 dprintk("%s: n: %p, work has been cancelled.\n", __func__, n);
276
277 for (rb_node = rb_first(&n->trans_root); rb_node; ) {
278 t = rb_entry(rb_node, struct dst_trans, trans_entry);
279
280 dprintk("%s: t: %p, gen: %llu, n: %s.\n",
281 __func__, t, t->gen, n->name);
282
283 rb_node = rb_next(rb_node);
284
285 t->error = -ETIMEDOUT;
286 dst_trans_remove_nolock(t);
287 dst_trans_put(t);
288 }
289
290 mempool_destroy(n->trans_pool);
291 kmem_cache_destroy(n->trans_cache);
292}
293
294/*
295 * Initialize transaction storage for given node.
296 * Transaction stores not only control information,
297 * but also network command and crypto data (if needed)
298 * to reduce number of allocations. Thus transaction size
299 * differs from node to node.
300 */
301int dst_node_trans_init(struct dst_node *n, unsigned int size)
302{
303 /*
304 * We need this, since node with given name can be dropped from the
305 * hash table, but be still alive, so subsequent creation of the node
306 * with the same name may collide with existing cache name.
307 */
308
309 snprintf(n->cache_name, sizeof(n->cache_name), "%s-%p", n->name, n);
310
311 n->trans_cache = kmem_cache_create(n->cache_name,
312 size + n->crypto.crypto_attached_size,
313 0, 0, NULL);
314 if (!n->trans_cache)
315 goto err_out_exit;
316
317 n->trans_pool = mempool_create_slab_pool(dst_mempool_num,
318 n->trans_cache);
319 if (!n->trans_pool)
320 goto err_out_cache_destroy;
321
322 mutex_init(&n->trans_lock);
323 n->trans_root = RB_ROOT;
324
325 INIT_DELAYED_WORK(&n->trans_work, dst_trans_scan);
326 schedule_delayed_work(&n->trans_work, n->trans_scan_timeout);
327
328 dprintk("%s: n: %p, size: %u, crypto: %u.\n",
329 __func__, n, size, n->crypto.crypto_attached_size);
330
331 return 0;
332
333err_out_cache_destroy:
334 kmem_cache_destroy(n->trans_cache);
335err_out_exit:
336 return -ENOMEM;
337}
diff --git a/drivers/staging/panel/Kconfig b/drivers/staging/panel/Kconfig
index 3abe7c9d558d..3defa0133f2e 100644
--- a/drivers/staging/panel/Kconfig
+++ b/drivers/staging/panel/Kconfig
@@ -47,7 +47,7 @@ config PANEL_PROFILE
47config PANEL_KEYPAD 47config PANEL_KEYPAD
48 depends on PANEL && PANEL_PROFILE="0" 48 depends on PANEL && PANEL_PROFILE="0"
49 int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)" 49 int "Keypad type (0=none, 1=old 6 keys, 2=new 6 keys, 3=Nexcom 4 keys)"
50 range 0 4 50 range 0 3
51 default 0 51 default 0
52 ---help--- 52 ---help---
53 This enables and configures a keypad connected to the parallel port. 53 This enables and configures a keypad connected to the parallel port.
diff --git a/drivers/staging/panel/panel.c b/drivers/staging/panel/panel.c
index f98a52448eae..95c93e82ccec 100644
--- a/drivers/staging/panel/panel.c
+++ b/drivers/staging/panel/panel.c
@@ -378,7 +378,7 @@ static unsigned char lcd_bits[LCD_PORTS][LCD_BITS][BIT_STATES];
378 378
379#ifdef CONFIG_PANEL_LCD_CHARSET 379#ifdef CONFIG_PANEL_LCD_CHARSET
380#undef DEFAULT_LCD_CHARSET 380#undef DEFAULT_LCD_CHARSET
381#define DEFAULT_LCD_CHARSET 381#define DEFAULT_LCD_CHARSET CONFIG_PANEL_LCD_CHARSET
382#endif 382#endif
383 383
384#endif /* DEFAULT_PROFILE == 0 */ 384#endif /* DEFAULT_PROFILE == 0 */
diff --git a/drivers/staging/ramzswap/TODO b/drivers/staging/ramzswap/TODO
index bac40d6cb9f1..8d64e28fac0e 100644
--- a/drivers/staging/ramzswap/TODO
+++ b/drivers/staging/ramzswap/TODO
@@ -1,6 +1,5 @@
1TODO: 1TODO:
2 - Add support for swap notifiers 2 - Add support for swap notifiers
3 - Remove CONFIG_ARM hack
4 3
5Please send patches to Greg Kroah-Hartman <greg@kroah.com> and 4Please send patches to Greg Kroah-Hartman <greg@kroah.com> and
6Nitin Gupta <ngupta@vflare.org> 5Nitin Gupta <ngupta@vflare.org>
diff --git a/drivers/staging/ramzswap/ramzswap_drv.c b/drivers/staging/ramzswap/ramzswap_drv.c
index b839f05efbce..989fac5b01b3 100644
--- a/drivers/staging/ramzswap/ramzswap_drv.c
+++ b/drivers/staging/ramzswap/ramzswap_drv.c
@@ -222,28 +222,6 @@ out:
222 return ret; 222 return ret;
223} 223}
224 224
225static void ramzswap_flush_dcache_page(struct page *page)
226{
227#ifdef CONFIG_ARM
228 int flag = 0;
229 /*
230 * Ugly hack to get flush_dcache_page() work on ARM.
231 * page_mapping(page) == NULL after clearing this swap cache flag.
232 * Without clearing this flag, flush_dcache_page() will simply set
233 * "PG_dcache_dirty" bit and return.
234 */
235 if (PageSwapCache(page)) {
236 flag = 1;
237 ClearPageSwapCache(page);
238 }
239#endif
240 flush_dcache_page(page);
241#ifdef CONFIG_ARM
242 if (flag)
243 SetPageSwapCache(page);
244#endif
245}
246
247void ramzswap_ioctl_get_stats(struct ramzswap *rzs, 225void ramzswap_ioctl_get_stats(struct ramzswap *rzs,
248 struct ramzswap_ioctl_stats *s) 226 struct ramzswap_ioctl_stats *s)
249{ 227{
@@ -655,7 +633,7 @@ static int handle_zero_page(struct bio *bio)
655 memset(user_mem, 0, PAGE_SIZE); 633 memset(user_mem, 0, PAGE_SIZE);
656 kunmap_atomic(user_mem, KM_USER0); 634 kunmap_atomic(user_mem, KM_USER0);
657 635
658 ramzswap_flush_dcache_page(page); 636 flush_dcache_page(page);
659 637
660 set_bit(BIO_UPTODATE, &bio->bi_flags); 638 set_bit(BIO_UPTODATE, &bio->bi_flags);
661 bio_endio(bio, 0); 639 bio_endio(bio, 0);
@@ -679,7 +657,7 @@ static int handle_uncompressed_page(struct ramzswap *rzs, struct bio *bio)
679 kunmap_atomic(user_mem, KM_USER0); 657 kunmap_atomic(user_mem, KM_USER0);
680 kunmap_atomic(cmem, KM_USER1); 658 kunmap_atomic(cmem, KM_USER1);
681 659
682 ramzswap_flush_dcache_page(page); 660 flush_dcache_page(page);
683 661
684 set_bit(BIO_UPTODATE, &bio->bi_flags); 662 set_bit(BIO_UPTODATE, &bio->bi_flags);
685 bio_endio(bio, 0); 663 bio_endio(bio, 0);
@@ -779,7 +757,7 @@ static int ramzswap_read(struct ramzswap *rzs, struct bio *bio)
779 goto out; 757 goto out;
780 } 758 }
781 759
782 ramzswap_flush_dcache_page(page); 760 flush_dcache_page(page);
783 761
784 set_bit(BIO_UPTODATE, &bio->bi_flags); 762 set_bit(BIO_UPTODATE, &bio->bi_flags);
785 bio_endio(bio, 0); 763 bio_endio(bio, 0);
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211.h b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
index 3222c22152fb..0d490c164db6 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211.h
@@ -1318,13 +1318,13 @@ extern int ieee80211_encrypt_fragment(
1318 struct sk_buff *frag, 1318 struct sk_buff *frag,
1319 int hdr_len); 1319 int hdr_len);
1320 1320
1321extern int ieee80211_xmit(struct sk_buff *skb, 1321extern int ieee80211_rtl_xmit(struct sk_buff *skb,
1322 struct net_device *dev); 1322 struct net_device *dev);
1323extern void ieee80211_txb_free(struct ieee80211_txb *); 1323extern void ieee80211_txb_free(struct ieee80211_txb *);
1324 1324
1325 1325
1326/* ieee80211_rx.c */ 1326/* ieee80211_rx.c */
1327extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 1327extern int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1328 struct ieee80211_rx_stats *rx_stats); 1328 struct ieee80211_rx_stats *rx_stats);
1329extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, 1329extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1330 struct ieee80211_hdr_4addr *header, 1330 struct ieee80211_hdr_4addr *header,
@@ -1376,8 +1376,8 @@ extern void ieee80211_stop_protocol(struct ieee80211_device *ieee);
1376extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee); 1376extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee);
1377extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee); 1377extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee);
1378extern void ieee80211_reset_queue(struct ieee80211_device *ieee); 1378extern void ieee80211_reset_queue(struct ieee80211_device *ieee);
1379extern void ieee80211_wake_queue(struct ieee80211_device *ieee); 1379extern void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee);
1380extern void ieee80211_stop_queue(struct ieee80211_device *ieee); 1380extern void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee);
1381extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee); 1381extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee);
1382extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee); 1382extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee);
1383extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee); 1383extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
@@ -1385,7 +1385,7 @@ extern int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct
1385extern void notify_wx_assoc_event(struct ieee80211_device *ieee); 1385extern void notify_wx_assoc_event(struct ieee80211_device *ieee);
1386extern void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success); 1386extern void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success);
1387extern void SendDisassociation(struct ieee80211_device *ieee,u8* asSta,u8 asRsn); 1387extern void SendDisassociation(struct ieee80211_device *ieee,u8* asSta,u8 asRsn);
1388extern void ieee80211_start_scan(struct ieee80211_device *ieee); 1388extern void ieee80211_rtl_start_scan(struct ieee80211_device *ieee);
1389 1389
1390//Add for RF power on power off by lizhaoming 080512 1390//Add for RF power on power off by lizhaoming 080512
1391extern void SendDisassociation(struct ieee80211_device *ieee, 1391extern void SendDisassociation(struct ieee80211_device *ieee,
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
index f882dd8cf9b5..9128c181bc7d 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_rx.c
@@ -469,7 +469,7 @@ drop:
469/* All received frames are sent to this function. @skb contains the frame in 469/* All received frames are sent to this function. @skb contains the frame in
470 * IEEE 802.11 format, i.e., in the format it was sent over air. 470 * IEEE 802.11 format, i.e., in the format it was sent over air.
471 * This function is called only as a tasklet (software IRQ). */ 471 * This function is called only as a tasklet (software IRQ). */
472int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 472int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
473 struct ieee80211_rx_stats *rx_stats) 473 struct ieee80211_rx_stats *rx_stats)
474{ 474{
475 struct net_device *dev = ieee->dev; 475 struct net_device *dev = ieee->dev;
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
index 1fe19c39d702..c7c645af0ebb 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c
@@ -689,7 +689,7 @@ void ieee80211_stop_scan(struct ieee80211_device *ieee)
689} 689}
690 690
691/* called with ieee->lock held */ 691/* called with ieee->lock held */
692void ieee80211_start_scan(struct ieee80211_device *ieee) 692void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
693{ 693{
694 if(IS_DOT11D_ENABLE(ieee) ) 694 if(IS_DOT11D_ENABLE(ieee) )
695 { 695 {
@@ -1196,7 +1196,7 @@ void ieee80211_associate_step1(struct ieee80211_device *ieee)
1196 } 1196 }
1197} 1197}
1198 1198
1199void ieee80211_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen) 1199void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1200{ 1200{
1201 u8 *c; 1201 u8 *c;
1202 struct sk_buff *skb; 1202 struct sk_buff *skb;
@@ -1898,7 +1898,7 @@ associate_complete:
1898 1898
1899 ieee80211_associate_step2(ieee); 1899 ieee80211_associate_step2(ieee);
1900 }else{ 1900 }else{
1901 ieee80211_auth_challenge(ieee, challenge, chlen); 1901 ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
1902 } 1902 }
1903 }else{ 1903 }else{
1904 ieee->softmac_stats.rx_auth_rs_err++; 1904 ieee->softmac_stats.rx_auth_rs_err++;
@@ -2047,7 +2047,7 @@ void ieee80211_reset_queue(struct ieee80211_device *ieee)
2047 2047
2048} 2048}
2049 2049
2050void ieee80211_wake_queue(struct ieee80211_device *ieee) 2050void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
2051{ 2051{
2052 2052
2053 unsigned long flags; 2053 unsigned long flags;
@@ -2089,7 +2089,7 @@ exit :
2089} 2089}
2090 2090
2091 2091
2092void ieee80211_stop_queue(struct ieee80211_device *ieee) 2092void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
2093{ 2093{
2094 //unsigned long flags; 2094 //unsigned long flags;
2095 //spin_lock_irqsave(&ieee->lock,flags); 2095 //spin_lock_irqsave(&ieee->lock,flags);
@@ -2301,7 +2301,7 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
2301//#else 2301//#else
2302 if (ieee->state == IEEE80211_NOLINK){ 2302 if (ieee->state == IEEE80211_NOLINK){
2303 ieee->actscanning = true; 2303 ieee->actscanning = true;
2304 ieee80211_start_scan(ieee); 2304 ieee80211_rtl_start_scan(ieee);
2305 } 2305 }
2306//#endif 2306//#endif
2307 spin_unlock_irqrestore(&ieee->lock, flags); 2307 spin_unlock_irqrestore(&ieee->lock, flags);
@@ -2357,7 +2357,7 @@ void ieee80211_associate_retry_wq(struct work_struct *work)
2357 if(ieee->state == IEEE80211_NOLINK){ 2357 if(ieee->state == IEEE80211_NOLINK){
2358 ieee->beinretry = false; 2358 ieee->beinretry = false;
2359 ieee->actscanning = true; 2359 ieee->actscanning = true;
2360 ieee80211_start_scan(ieee); 2360 ieee80211_rtl_start_scan(ieee);
2361 } 2361 }
2362 //YJ,add,080828, notify os here 2362 //YJ,add,080828, notify os here
2363 if(ieee->state == IEEE80211_NOLINK) 2363 if(ieee->state == IEEE80211_NOLINK)
diff --git a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
index dde1f2e0cf32..69bd02164b0c 100644
--- a/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8187se/ieee80211/ieee80211_tx.c
@@ -304,7 +304,7 @@ ieee80211_classify(struct sk_buff *skb, struct ieee80211_network *network)
304} 304}
305 305
306/* SKBs are added to the ieee->tx_queue. */ 306/* SKBs are added to the ieee->tx_queue. */
307int ieee80211_xmit(struct sk_buff *skb, 307int ieee80211_rtl_xmit(struct sk_buff *skb,
308 struct net_device *dev) 308 struct net_device *dev)
309{ 309{
310 struct ieee80211_device *ieee = netdev_priv(dev); 310 struct ieee80211_device *ieee = netdev_priv(dev);
diff --git a/drivers/staging/rtl8187se/r8180_core.c b/drivers/staging/rtl8187se/r8180_core.c
index 57c62b0a402f..e0f13efdb15a 100644
--- a/drivers/staging/rtl8187se/r8180_core.c
+++ b/drivers/staging/rtl8187se/r8180_core.c
@@ -1811,7 +1811,7 @@ void rtl8180_rx(struct net_device *dev)
1811 if(priv->rx_skb->len > 4) 1811 if(priv->rx_skb->len > 4)
1812 skb_trim(priv->rx_skb,priv->rx_skb->len-4); 1812 skb_trim(priv->rx_skb,priv->rx_skb->len-4);
1813#ifndef RX_DONT_PASS_UL 1813#ifndef RX_DONT_PASS_UL
1814 if(!ieee80211_rx(priv->ieee80211, 1814 if(!ieee80211_rtl_rx(priv->ieee80211,
1815 priv->rx_skb, &stats)){ 1815 priv->rx_skb, &stats)){
1816#endif // RX_DONT_PASS_UL 1816#endif // RX_DONT_PASS_UL
1817 1817
@@ -1917,11 +1917,11 @@ rate)
1917 if (!check_nic_enought_desc(dev, priority)){ 1917 if (!check_nic_enought_desc(dev, priority)){
1918 DMESGW("Error: no descriptor left by previous TX (avail %d) ", 1918 DMESGW("Error: no descriptor left by previous TX (avail %d) ",
1919 get_curr_tx_free_desc(dev, priority)); 1919 get_curr_tx_free_desc(dev, priority));
1920 ieee80211_stop_queue(priv->ieee80211); 1920 ieee80211_rtl_stop_queue(priv->ieee80211);
1921 } 1921 }
1922 rtl8180_tx(dev, skb->data, skb->len, priority, morefrag,0,rate); 1922 rtl8180_tx(dev, skb->data, skb->len, priority, morefrag,0,rate);
1923 if (!check_nic_enought_desc(dev, priority)) 1923 if (!check_nic_enought_desc(dev, priority))
1924 ieee80211_stop_queue(priv->ieee80211); 1924 ieee80211_rtl_stop_queue(priv->ieee80211);
1925 1925
1926 spin_unlock_irqrestore(&priv->tx_lock,flags); 1926 spin_unlock_irqrestore(&priv->tx_lock,flags);
1927} 1927}
@@ -3680,7 +3680,7 @@ static const struct net_device_ops rtl8180_netdev_ops = {
3680 .ndo_set_mac_address = r8180_set_mac_adr, 3680 .ndo_set_mac_address = r8180_set_mac_adr,
3681 .ndo_validate_addr = eth_validate_addr, 3681 .ndo_validate_addr = eth_validate_addr,
3682 .ndo_change_mtu = eth_change_mtu, 3682 .ndo_change_mtu = eth_change_mtu,
3683 .ndo_start_xmit = ieee80211_xmit, 3683 .ndo_start_xmit = ieee80211_rtl_xmit,
3684}; 3684};
3685 3685
3686static int __devinit rtl8180_pci_probe(struct pci_dev *pdev, 3686static int __devinit rtl8180_pci_probe(struct pci_dev *pdev,
@@ -3900,7 +3900,7 @@ void rtl8180_try_wake_queue(struct net_device *dev, int pri)
3900 spin_unlock_irqrestore(&priv->tx_lock,flags); 3900 spin_unlock_irqrestore(&priv->tx_lock,flags);
3901 3901
3902 if(enough_desc) 3902 if(enough_desc)
3903 ieee80211_wake_queue(priv->ieee80211); 3903 ieee80211_rtl_wake_queue(priv->ieee80211);
3904} 3904}
3905 3905
3906void rtl8180_tx_isr(struct net_device *dev, int pri,short error) 3906void rtl8180_tx_isr(struct net_device *dev, int pri,short error)
diff --git a/drivers/staging/rtl8187se/r8180_wx.c b/drivers/staging/rtl8187se/r8180_wx.c
index 536cb6e8e796..124cde356cbc 100644
--- a/drivers/staging/rtl8187se/r8180_wx.c
+++ b/drivers/staging/rtl8187se/r8180_wx.c
@@ -377,7 +377,7 @@ static int r8180_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
377 // queue_work(priv->ieee80211->wq, &priv->ieee80211->wx_sync_scan_wq); 377 // queue_work(priv->ieee80211->wq, &priv->ieee80211->wx_sync_scan_wq);
378 //printk("start scan============================>\n"); 378 //printk("start scan============================>\n");
379 ieee80211_softmac_ips_scan_syncro(priv->ieee80211); 379 ieee80211_softmac_ips_scan_syncro(priv->ieee80211);
380//ieee80211_start_scan(priv->ieee80211); 380//ieee80211_rtl_start_scan(priv->ieee80211);
381 /* intentionally forget to up sem */ 381 /* intentionally forget to up sem */
382// up(&priv->ieee80211->wx_sem); 382// up(&priv->ieee80211->wx_sem);
383 ret = 0; 383 ret = 0;
diff --git a/drivers/staging/rtl8192e/ieee80211.h b/drivers/staging/rtl8192e/ieee80211.h
index 97137ddefff4..3ba9e9e90bda 100644
--- a/drivers/staging/rtl8192e/ieee80211.h
+++ b/drivers/staging/rtl8192e/ieee80211.h
@@ -303,8 +303,8 @@ enum _ReasonCode{
303#define ieee80211_rx_mgt ieee80211_rx_mgt_rsl 303#define ieee80211_rx_mgt ieee80211_rx_mgt_rsl
304 304
305#define ieee80211_get_beacon ieee80211_get_beacon_rsl 305#define ieee80211_get_beacon ieee80211_get_beacon_rsl
306#define ieee80211_wake_queue ieee80211_wake_queue_rsl 306#define ieee80211_rtl_wake_queue ieee80211_rtl_wake_queue_rsl
307#define ieee80211_stop_queue ieee80211_stop_queue_rsl 307#define ieee80211_rtl_stop_queue ieee80211_rtl_stop_queue_rsl
308#define ieee80211_reset_queue ieee80211_reset_queue_rsl 308#define ieee80211_reset_queue ieee80211_reset_queue_rsl
309#define ieee80211_softmac_stop_protocol ieee80211_softmac_stop_protocol_rsl 309#define ieee80211_softmac_stop_protocol ieee80211_softmac_stop_protocol_rsl
310#define ieee80211_softmac_start_protocol ieee80211_softmac_start_protocol_rsl 310#define ieee80211_softmac_start_protocol ieee80211_softmac_start_protocol_rsl
@@ -2435,13 +2435,13 @@ extern int ieee80211_encrypt_fragment(
2435 struct sk_buff *frag, 2435 struct sk_buff *frag,
2436 int hdr_len); 2436 int hdr_len);
2437 2437
2438extern int ieee80211_xmit(struct sk_buff *skb, 2438extern int ieee80211_rtl_xmit(struct sk_buff *skb,
2439 struct net_device *dev); 2439 struct net_device *dev);
2440extern void ieee80211_txb_free(struct ieee80211_txb *); 2440extern void ieee80211_txb_free(struct ieee80211_txb *);
2441 2441
2442 2442
2443/* ieee80211_rx.c */ 2443/* ieee80211_rx.c */
2444extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 2444extern int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
2445 struct ieee80211_rx_stats *rx_stats); 2445 struct ieee80211_rx_stats *rx_stats);
2446extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, 2446extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2447 struct ieee80211_hdr_4addr *header, 2447 struct ieee80211_hdr_4addr *header,
@@ -2502,8 +2502,8 @@ extern void ieee80211_stop_protocol(struct ieee80211_device *ieee);
2502extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee); 2502extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee);
2503extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee); 2503extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee);
2504extern void ieee80211_reset_queue(struct ieee80211_device *ieee); 2504extern void ieee80211_reset_queue(struct ieee80211_device *ieee);
2505extern void ieee80211_wake_queue(struct ieee80211_device *ieee); 2505extern void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee);
2506extern void ieee80211_stop_queue(struct ieee80211_device *ieee); 2506extern void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee);
2507extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee); 2507extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee);
2508extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee); 2508extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee);
2509extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee); 2509extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211.h b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
index 83c8452de378..aa76390487bb 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211.h
@@ -333,8 +333,8 @@ enum _ReasonCode{
333#define ieee80211_rx_mgt ieee80211_rx_mgt_rsl 333#define ieee80211_rx_mgt ieee80211_rx_mgt_rsl
334 334
335#define ieee80211_get_beacon ieee80211_get_beacon_rsl 335#define ieee80211_get_beacon ieee80211_get_beacon_rsl
336#define ieee80211_wake_queue ieee80211_wake_queue_rsl 336#define ieee80211_rtl_wake_queue ieee80211_rtl_wake_queue_rsl
337#define ieee80211_stop_queue ieee80211_stop_queue_rsl 337#define ieee80211_rtl_stop_queue ieee80211_rtl_stop_queue_rsl
338#define ieee80211_reset_queue ieee80211_reset_queue_rsl 338#define ieee80211_reset_queue ieee80211_reset_queue_rsl
339#define ieee80211_softmac_stop_protocol ieee80211_softmac_stop_protocol_rsl 339#define ieee80211_softmac_stop_protocol ieee80211_softmac_stop_protocol_rsl
340#define ieee80211_softmac_start_protocol ieee80211_softmac_start_protocol_rsl 340#define ieee80211_softmac_start_protocol ieee80211_softmac_start_protocol_rsl
@@ -2546,13 +2546,13 @@ extern int ieee80211_encrypt_fragment(
2546 struct sk_buff *frag, 2546 struct sk_buff *frag,
2547 int hdr_len); 2547 int hdr_len);
2548 2548
2549extern int ieee80211_xmit(struct sk_buff *skb, 2549extern int ieee80211_rtl_xmit(struct sk_buff *skb,
2550 struct net_device *dev); 2550 struct net_device *dev);
2551extern void ieee80211_txb_free(struct ieee80211_txb *); 2551extern void ieee80211_txb_free(struct ieee80211_txb *);
2552 2552
2553 2553
2554/* ieee80211_rx.c */ 2554/* ieee80211_rx.c */
2555extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 2555extern int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
2556 struct ieee80211_rx_stats *rx_stats); 2556 struct ieee80211_rx_stats *rx_stats);
2557extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, 2557extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
2558 struct ieee80211_hdr_4addr *header, 2558 struct ieee80211_hdr_4addr *header,
@@ -2613,8 +2613,8 @@ extern void ieee80211_stop_protocol(struct ieee80211_device *ieee);
2613extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee); 2613extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee);
2614extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee); 2614extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee);
2615extern void ieee80211_reset_queue(struct ieee80211_device *ieee); 2615extern void ieee80211_reset_queue(struct ieee80211_device *ieee);
2616extern void ieee80211_wake_queue(struct ieee80211_device *ieee); 2616extern void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee);
2617extern void ieee80211_stop_queue(struct ieee80211_device *ieee); 2617extern void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee);
2618extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee); 2618extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee);
2619extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee); 2619extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee);
2620extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee); 2620extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
index 2644155737a8..f43a7db5c78b 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_module.c
@@ -119,7 +119,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
119 ieee = (struct ieee80211_device *)dev->priv; 119 ieee = (struct ieee80211_device *)dev->priv;
120#endif 120#endif
121#if 0 121#if 0
122 dev->hard_start_xmit = ieee80211_xmit; 122 dev->hard_start_xmit = ieee80211_rtl_xmit;
123#endif 123#endif
124 124
125 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv); 125 memset(ieee, 0, sizeof(struct ieee80211_device)+sizeof_priv);
@@ -333,7 +333,7 @@ extern void ieee80211_crypto_ccmp_exit(void);
333extern int ieee80211_crypto_wep_init(void); 333extern int ieee80211_crypto_wep_init(void);
334extern void ieee80211_crypto_wep_exit(void); 334extern void ieee80211_crypto_wep_exit(void);
335 335
336int __init ieee80211_init(void) 336int __init ieee80211_rtl_init(void)
337{ 337{
338 struct proc_dir_entry *e; 338 struct proc_dir_entry *e;
339 int retval; 339 int retval;
@@ -389,7 +389,7 @@ int __init ieee80211_init(void)
389 return 0; 389 return 0;
390} 390}
391 391
392void __exit ieee80211_exit(void) 392void __exit ieee80211_rtl_exit(void)
393{ 393{
394 if (ieee80211_proc) { 394 if (ieee80211_proc) {
395 remove_proc_entry("debug_level", ieee80211_proc); 395 remove_proc_entry("debug_level", ieee80211_proc);
@@ -412,8 +412,8 @@ module_param(debug, int, 0444);
412MODULE_PARM_DESC(debug, "debug output mask"); 412MODULE_PARM_DESC(debug, "debug output mask");
413 413
414 414
415//module_exit(ieee80211_exit); 415//module_exit(ieee80211_rtl_exit);
416//module_init(ieee80211_init); 416//module_init(ieee80211_rtl_init);
417#endif 417#endif
418#endif 418#endif
419 419
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
index 5dc478b86375..06d91715143c 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_rx.c
@@ -923,7 +923,7 @@ u8 parse_subframe(struct sk_buff *skb,
923/* All received frames are sent to this function. @skb contains the frame in 923/* All received frames are sent to this function. @skb contains the frame in
924 * IEEE 802.11 format, i.e., in the format it was sent over air. 924 * IEEE 802.11 format, i.e., in the format it was sent over air.
925 * This function is called only as a tasklet (software IRQ). */ 925 * This function is called only as a tasklet (software IRQ). */
926int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 926int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
927 struct ieee80211_rx_stats *rx_stats) 927 struct ieee80211_rx_stats *rx_stats)
928{ 928{
929 struct net_device *dev = ieee->dev; 929 struct net_device *dev = ieee->dev;
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
index 593d22825184..6d1ddec39f0e 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_softmac.c
@@ -684,7 +684,7 @@ void ieee80211_stop_scan(struct ieee80211_device *ieee)
684} 684}
685 685
686/* called with ieee->lock held */ 686/* called with ieee->lock held */
687void ieee80211_start_scan(struct ieee80211_device *ieee) 687void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
688{ 688{
689#ifdef ENABLE_DOT11D 689#ifdef ENABLE_DOT11D
690 if(IS_DOT11D_ENABLE(ieee) ) 690 if(IS_DOT11D_ENABLE(ieee) )
@@ -1430,7 +1430,7 @@ void ieee80211_associate_step1(struct ieee80211_device *ieee)
1430 } 1430 }
1431} 1431}
1432 1432
1433void ieee80211_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen) 1433void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1434{ 1434{
1435 u8 *c; 1435 u8 *c;
1436 struct sk_buff *skb; 1436 struct sk_buff *skb;
@@ -2262,7 +2262,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
2262 2262
2263 ieee80211_associate_step2(ieee); 2263 ieee80211_associate_step2(ieee);
2264 }else{ 2264 }else{
2265 ieee80211_auth_challenge(ieee, challenge, chlen); 2265 ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
2266 } 2266 }
2267 }else{ 2267 }else{
2268 ieee->softmac_stats.rx_auth_rs_err++; 2268 ieee->softmac_stats.rx_auth_rs_err++;
@@ -2376,7 +2376,7 @@ void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *
2376 * to check it any more. 2376 * to check it any more.
2377 * */ 2377 * */
2378 //printk("error:no descriptor left@queue_index %d\n", queue_index); 2378 //printk("error:no descriptor left@queue_index %d\n", queue_index);
2379 //ieee80211_stop_queue(ieee); 2379 //ieee80211_rtl_stop_queue(ieee);
2380#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE 2380#ifdef USB_TX_DRIVER_AGGREGATION_ENABLE
2381 skb_queue_tail(&ieee->skb_drv_aggQ[queue_index], txb->fragments[i]); 2381 skb_queue_tail(&ieee->skb_drv_aggQ[queue_index], txb->fragments[i]);
2382#else 2382#else
@@ -2440,7 +2440,7 @@ void ieee80211_reset_queue(struct ieee80211_device *ieee)
2440 2440
2441} 2441}
2442 2442
2443void ieee80211_wake_queue(struct ieee80211_device *ieee) 2443void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
2444{ 2444{
2445 2445
2446 unsigned long flags; 2446 unsigned long flags;
@@ -2481,7 +2481,7 @@ exit :
2481} 2481}
2482 2482
2483 2483
2484void ieee80211_stop_queue(struct ieee80211_device *ieee) 2484void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
2485{ 2485{
2486 //unsigned long flags; 2486 //unsigned long flags;
2487 //spin_lock_irqsave(&ieee->lock,flags); 2487 //spin_lock_irqsave(&ieee->lock,flags);
@@ -2706,7 +2706,7 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
2706 2706
2707 if (ieee->state == IEEE80211_NOLINK){ 2707 if (ieee->state == IEEE80211_NOLINK){
2708 ieee->actscanning = true; 2708 ieee->actscanning = true;
2709 ieee80211_start_scan(ieee); 2709 ieee80211_rtl_start_scan(ieee);
2710 } 2710 }
2711 spin_unlock_irqrestore(&ieee->lock, flags); 2711 spin_unlock_irqrestore(&ieee->lock, flags);
2712} 2712}
@@ -2775,7 +2775,7 @@ void ieee80211_associate_retry_wq(struct ieee80211_device *ieee)
2775 { 2775 {
2776 ieee->is_roaming= false; 2776 ieee->is_roaming= false;
2777 ieee->actscanning = true; 2777 ieee->actscanning = true;
2778 ieee80211_start_scan(ieee); 2778 ieee80211_rtl_start_scan(ieee);
2779 } 2779 }
2780 spin_unlock_irqrestore(&ieee->lock, flags); 2780 spin_unlock_irqrestore(&ieee->lock, flags);
2781 2781
@@ -3497,8 +3497,8 @@ void notify_wx_assoc_event(struct ieee80211_device *ieee)
3497 3497
3498#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0)) 3498#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,0))
3499//EXPORT_SYMBOL(ieee80211_get_beacon); 3499//EXPORT_SYMBOL(ieee80211_get_beacon);
3500//EXPORT_SYMBOL(ieee80211_wake_queue); 3500//EXPORT_SYMBOL(ieee80211_rtl_wake_queue);
3501//EXPORT_SYMBOL(ieee80211_stop_queue); 3501//EXPORT_SYMBOL(ieee80211_rtl_stop_queue);
3502//EXPORT_SYMBOL(ieee80211_reset_queue); 3502//EXPORT_SYMBOL(ieee80211_reset_queue);
3503//EXPORT_SYMBOL(ieee80211_softmac_stop_protocol); 3503//EXPORT_SYMBOL(ieee80211_softmac_stop_protocol);
3504//EXPORT_SYMBOL(ieee80211_softmac_start_protocol); 3504//EXPORT_SYMBOL(ieee80211_softmac_start_protocol);
@@ -3518,8 +3518,8 @@ void notify_wx_assoc_event(struct ieee80211_device *ieee)
3518//EXPORT_SYMBOL(ieee80211_start_scan_syncro); 3518//EXPORT_SYMBOL(ieee80211_start_scan_syncro);
3519#else 3519#else
3520EXPORT_SYMBOL_NOVERS(ieee80211_get_beacon); 3520EXPORT_SYMBOL_NOVERS(ieee80211_get_beacon);
3521EXPORT_SYMBOL_NOVERS(ieee80211_wake_queue); 3521EXPORT_SYMBOL_NOVERS(ieee80211_rtl_wake_queue);
3522EXPORT_SYMBOL_NOVERS(ieee80211_stop_queue); 3522EXPORT_SYMBOL_NOVERS(ieee80211_rtl_stop_queue);
3523EXPORT_SYMBOL_NOVERS(ieee80211_reset_queue); 3523EXPORT_SYMBOL_NOVERS(ieee80211_reset_queue);
3524EXPORT_SYMBOL_NOVERS(ieee80211_softmac_stop_protocol); 3524EXPORT_SYMBOL_NOVERS(ieee80211_softmac_stop_protocol);
3525EXPORT_SYMBOL_NOVERS(ieee80211_softmac_start_protocol); 3525EXPORT_SYMBOL_NOVERS(ieee80211_softmac_start_protocol);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_tx.c
index 103b33c093f5..798fb4154c25 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_tx.c
@@ -604,7 +604,7 @@ void ieee80211_query_seqnum(struct ieee80211_device*ieee, struct sk_buff* skb, u
604 } 604 }
605} 605}
606 606
607int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) 607int ieee80211_rtl_xmit(struct sk_buff *skb, struct net_device *dev)
608{ 608{
609#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)) 609#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0))
610 struct ieee80211_device *ieee = netdev_priv(dev); 610 struct ieee80211_device *ieee = netdev_priv(dev);
diff --git a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
index 4e34a1f4c66b..3441b72dd8fa 100644
--- a/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192e/ieee80211/ieee80211_wx.c
@@ -976,7 +976,7 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
976 { 976 {
977 if (len != ie[1]+2) 977 if (len != ie[1]+2)
978 { 978 {
979 printk("len:%d, ie:%d\n", len, ie[1]); 979 printk("len:%zu, ie:%d\n", len, ie[1]);
980 return -EINVAL; 980 return -EINVAL;
981 } 981 }
982 buf = kmalloc(len, GFP_KERNEL); 982 buf = kmalloc(len, GFP_KERNEL);
diff --git a/drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c
index 98b3bb6b6d69..e41e8a0c739c 100644
--- a/drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192e/ieee80211/rtl819x_BAProc.c
@@ -382,7 +382,7 @@ int ieee80211_rx_ADDBAReq( struct ieee80211_device* ieee, struct sk_buff *skb)
382 382
383 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9) 383 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9)
384 { 384 {
385 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BAREQ(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9)); 385 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BAREQ(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9));
386 return -1; 386 return -1;
387 } 387 }
388 388
@@ -481,7 +481,7 @@ int ieee80211_rx_ADDBARsp( struct ieee80211_device* ieee, struct sk_buff *skb)
481 481
482 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9) 482 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9)
483 { 483 {
484 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BARSP(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9)); 484 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BARSP(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9));
485 return -1; 485 return -1;
486 } 486 }
487 rsp = ( struct ieee80211_hdr_3addr*)skb->data; 487 rsp = ( struct ieee80211_hdr_3addr*)skb->data;
@@ -611,7 +611,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device* ieee,struct sk_buff *skb)
611 611
612 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 6) 612 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 6)
613 { 613 {
614 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in DELBA(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 6)); 614 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in DELBA(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 6));
615 return -1; 615 return -1;
616 } 616 }
617 617
diff --git a/drivers/staging/rtl8192e/r8192E_core.c b/drivers/staging/rtl8192e/r8192E_core.c
index ff8fe7e32a92..0ca5d8b4f746 100644
--- a/drivers/staging/rtl8192e/r8192E_core.c
+++ b/drivers/staging/rtl8192e/r8192E_core.c
@@ -5795,7 +5795,7 @@ static void rtl8192_rx(struct net_device *dev)
5795 stats.fragoffset = 0; 5795 stats.fragoffset = 0;
5796 stats.ntotalfrag = 1; 5796 stats.ntotalfrag = 1;
5797 5797
5798 if(!ieee80211_rx(priv->ieee80211, skb, &stats)){ 5798 if(!ieee80211_rtl_rx(priv->ieee80211, skb, &stats)){
5799 dev_kfree_skb_any(skb); 5799 dev_kfree_skb_any(skb);
5800 } else { 5800 } else {
5801 priv->stats.rxok++; 5801 priv->stats.rxok++;
@@ -5837,7 +5837,7 @@ static const struct net_device_ops rtl8192_netdev_ops = {
5837 .ndo_do_ioctl = rtl8192_ioctl, 5837 .ndo_do_ioctl = rtl8192_ioctl,
5838 .ndo_set_multicast_list = r8192_set_multicast, 5838 .ndo_set_multicast_list = r8192_set_multicast,
5839 .ndo_set_mac_address = r8192_set_mac_adr, 5839 .ndo_set_mac_address = r8192_set_mac_adr,
5840 .ndo_start_xmit = ieee80211_xmit, 5840 .ndo_start_xmit = ieee80211_rtl_xmit,
5841}; 5841};
5842 5842
5843/**************************************************************************** 5843/****************************************************************************
@@ -6121,14 +6121,14 @@ static void __devexit rtl8192_pci_disconnect(struct pci_dev *pdev)
6121 RT_TRACE(COMP_DOWN, "wlan driver removed\n"); 6121 RT_TRACE(COMP_DOWN, "wlan driver removed\n");
6122} 6122}
6123 6123
6124extern int ieee80211_init(void); 6124extern int ieee80211_rtl_init(void);
6125extern void ieee80211_exit(void); 6125extern void ieee80211_rtl_exit(void);
6126 6126
6127static int __init rtl8192_pci_module_init(void) 6127static int __init rtl8192_pci_module_init(void)
6128{ 6128{
6129 int retval; 6129 int retval;
6130 6130
6131 retval = ieee80211_init(); 6131 retval = ieee80211_rtl_init();
6132 if (retval) 6132 if (retval)
6133 return retval; 6133 return retval;
6134 6134
@@ -6153,7 +6153,7 @@ static void __exit rtl8192_pci_module_exit(void)
6153 6153
6154 RT_TRACE(COMP_DOWN, "Exiting"); 6154 RT_TRACE(COMP_DOWN, "Exiting");
6155 rtl8192_proc_module_remove(); 6155 rtl8192_proc_module_remove();
6156 ieee80211_exit(); 6156 ieee80211_rtl_exit();
6157} 6157}
6158 6158
6159//warning message WB 6159//warning message WB
@@ -6313,7 +6313,7 @@ void rtl8192_try_wake_queue(struct net_device *dev, int pri)
6313 spin_unlock_irqrestore(&priv->tx_lock,flags); 6313 spin_unlock_irqrestore(&priv->tx_lock,flags);
6314 6314
6315 if(enough_desc) 6315 if(enough_desc)
6316 ieee80211_wake_queue(priv->ieee80211); 6316 ieee80211_rtl_wake_queue(priv->ieee80211);
6317#endif 6317#endif
6318} 6318}
6319 6319
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211.h b/drivers/staging/rtl8192su/ieee80211/ieee80211.h
index f22d024b1c39..9a4c858b0666 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211.h
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211.h
@@ -1721,13 +1721,13 @@ extern int ieee80211_encrypt_fragment(
1721 struct sk_buff *frag, 1721 struct sk_buff *frag,
1722 int hdr_len); 1722 int hdr_len);
1723 1723
1724extern int rtl8192_ieee80211_xmit(struct sk_buff *skb, 1724extern int rtl8192_ieee80211_rtl_xmit(struct sk_buff *skb,
1725 struct net_device *dev); 1725 struct net_device *dev);
1726extern void ieee80211_txb_free(struct ieee80211_txb *); 1726extern void ieee80211_txb_free(struct ieee80211_txb *);
1727 1727
1728 1728
1729/* ieee80211_rx.c */ 1729/* ieee80211_rx.c */
1730extern int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 1730extern int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
1731 struct ieee80211_rx_stats *rx_stats); 1731 struct ieee80211_rx_stats *rx_stats);
1732extern void ieee80211_rx_mgt(struct ieee80211_device *ieee, 1732extern void ieee80211_rx_mgt(struct ieee80211_device *ieee,
1733 struct ieee80211_hdr_4addr *header, 1733 struct ieee80211_hdr_4addr *header,
@@ -1783,8 +1783,8 @@ extern void ieee80211_stop_protocol(struct ieee80211_device *ieee);
1783extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee); 1783extern void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee);
1784extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee); 1784extern void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee);
1785extern void ieee80211_reset_queue(struct ieee80211_device *ieee); 1785extern void ieee80211_reset_queue(struct ieee80211_device *ieee);
1786extern void ieee80211_wake_queue(struct ieee80211_device *ieee); 1786extern void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee);
1787extern void ieee80211_stop_queue(struct ieee80211_device *ieee); 1787extern void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee);
1788extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee); 1788extern struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee);
1789extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee); 1789extern void ieee80211_start_send_beacons(struct ieee80211_device *ieee);
1790extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee); 1790extern void ieee80211_stop_send_beacons(struct ieee80211_device *ieee);
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
index ac223cef1d33..fecfa120ff48 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_rx.c
@@ -208,7 +208,7 @@ static int ieee80211_frag_cache_invalidate(struct ieee80211_device *ieee,
208 * 208 *
209 * Responsible for handling management control frames 209 * Responsible for handling management control frames
210 * 210 *
211 * Called by ieee80211_rx */ 211 * Called by ieee80211_rtl_rx */
212static inline int 212static inline int
213ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb, 213ieee80211_rx_frame_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb,
214 struct ieee80211_rx_stats *rx_stats, u16 type, 214 struct ieee80211_rx_stats *rx_stats, u16 type,
@@ -289,7 +289,7 @@ static int ieee80211_is_eapol_frame(struct ieee80211_device *ieee,
289 return 0; 289 return 0;
290} 290}
291 291
292/* Called only as a tasklet (software IRQ), by ieee80211_rx */ 292/* Called only as a tasklet (software IRQ), by ieee80211_rtl_rx */
293static inline int 293static inline int
294ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb, 294ieee80211_rx_frame_decrypt(struct ieee80211_device* ieee, struct sk_buff *skb,
295 struct ieee80211_crypt_data *crypt) 295 struct ieee80211_crypt_data *crypt)
@@ -858,7 +858,7 @@ u8 parse_subframe(struct sk_buff *skb,
858/* All received frames are sent to this function. @skb contains the frame in 858/* All received frames are sent to this function. @skb contains the frame in
859 * IEEE 802.11 format, i.e., in the format it was sent over air. 859 * IEEE 802.11 format, i.e., in the format it was sent over air.
860 * This function is called only as a tasklet (software IRQ). */ 860 * This function is called only as a tasklet (software IRQ). */
861int ieee80211_rx(struct ieee80211_device *ieee, struct sk_buff *skb, 861int ieee80211_rtl_rx(struct ieee80211_device *ieee, struct sk_buff *skb,
862 struct ieee80211_rx_stats *rx_stats) 862 struct ieee80211_rx_stats *rx_stats)
863{ 863{
864 struct net_device *dev = ieee->dev; 864 struct net_device *dev = ieee->dev;
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
index 203c0a5cc8c1..95d4f84dcf3f 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c
@@ -610,7 +610,7 @@ void ieee80211_stop_scan(struct ieee80211_device *ieee)
610} 610}
611 611
612/* called with ieee->lock held */ 612/* called with ieee->lock held */
613void ieee80211_start_scan(struct ieee80211_device *ieee) 613void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
614{ 614{
615 if(IS_DOT11D_ENABLE(ieee) ) 615 if(IS_DOT11D_ENABLE(ieee) )
616 { 616 {
@@ -1281,7 +1281,7 @@ void ieee80211_associate_step1(struct ieee80211_device *ieee)
1281 } 1281 }
1282} 1282}
1283 1283
1284void ieee80211_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen) 1284void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1285{ 1285{
1286 u8 *c; 1286 u8 *c;
1287 struct sk_buff *skb; 1287 struct sk_buff *skb;
@@ -2054,7 +2054,7 @@ ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
2054 2054
2055 ieee80211_associate_step2(ieee); 2055 ieee80211_associate_step2(ieee);
2056 }else{ 2056 }else{
2057 ieee80211_auth_challenge(ieee, challenge, chlen); 2057 ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
2058 } 2058 }
2059 }else{ 2059 }else{
2060 ieee->softmac_stats.rx_auth_rs_err++; 2060 ieee->softmac_stats.rx_auth_rs_err++;
@@ -2162,7 +2162,7 @@ void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *
2162 * to check it any more. 2162 * to check it any more.
2163 * */ 2163 * */
2164 //printk("error:no descriptor left@queue_index %d, %d, %d\n", queue_index, skb_queue_len(&ieee->skb_waitQ[queue_index]), ieee->check_nic_enough_desc(ieee->dev,queue_index)); 2164 //printk("error:no descriptor left@queue_index %d, %d, %d\n", queue_index, skb_queue_len(&ieee->skb_waitQ[queue_index]), ieee->check_nic_enough_desc(ieee->dev,queue_index));
2165 //ieee80211_stop_queue(ieee); 2165 //ieee80211_rtl_stop_queue(ieee);
2166 skb_queue_tail(&ieee->skb_waitQ[queue_index], txb->fragments[i]); 2166 skb_queue_tail(&ieee->skb_waitQ[queue_index], txb->fragments[i]);
2167 }else{ 2167 }else{
2168 ieee->softmac_data_hard_start_xmit( 2168 ieee->softmac_data_hard_start_xmit(
@@ -2222,7 +2222,7 @@ void ieee80211_reset_queue(struct ieee80211_device *ieee)
2222 2222
2223} 2223}
2224 2224
2225void ieee80211_wake_queue(struct ieee80211_device *ieee) 2225void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
2226{ 2226{
2227 2227
2228 unsigned long flags; 2228 unsigned long flags;
@@ -2263,7 +2263,7 @@ exit :
2263} 2263}
2264 2264
2265 2265
2266void ieee80211_stop_queue(struct ieee80211_device *ieee) 2266void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
2267{ 2267{
2268 //unsigned long flags; 2268 //unsigned long flags;
2269 //spin_lock_irqsave(&ieee->lock,flags); 2269 //spin_lock_irqsave(&ieee->lock,flags);
@@ -2479,7 +2479,7 @@ void ieee80211_start_bss(struct ieee80211_device *ieee)
2479 2479
2480 if (ieee->state == IEEE80211_NOLINK){ 2480 if (ieee->state == IEEE80211_NOLINK){
2481 ieee->actscanning = true; 2481 ieee->actscanning = true;
2482 ieee80211_start_scan(ieee); 2482 ieee80211_rtl_start_scan(ieee);
2483 } 2483 }
2484 spin_unlock_irqrestore(&ieee->lock, flags); 2484 spin_unlock_irqrestore(&ieee->lock, flags);
2485} 2485}
@@ -2552,7 +2552,7 @@ void ieee80211_associate_retry_wq(struct work_struct *work)
2552 if(ieee->state == IEEE80211_NOLINK) 2552 if(ieee->state == IEEE80211_NOLINK)
2553 { 2553 {
2554 ieee->actscanning = true; 2554 ieee->actscanning = true;
2555 ieee80211_start_scan(ieee); 2555 ieee80211_rtl_start_scan(ieee);
2556 } 2556 }
2557 spin_unlock_irqrestore(&ieee->lock, flags); 2557 spin_unlock_irqrestore(&ieee->lock, flags);
2558 2558
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
index 60621d6b2a6b..4d54e1e62d22 100644
--- a/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
+++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_tx.c
@@ -604,7 +604,7 @@ void ieee80211_query_seqnum(struct ieee80211_device*ieee, struct sk_buff* skb, u
604 } 604 }
605} 605}
606 606
607int rtl8192_ieee80211_xmit(struct sk_buff *skb, struct net_device *dev) 607int rtl8192_ieee80211_rtl_xmit(struct sk_buff *skb, struct net_device *dev)
608{ 608{
609 struct ieee80211_device *ieee = netdev_priv(dev); 609 struct ieee80211_device *ieee = netdev_priv(dev);
610 struct ieee80211_txb *txb = NULL; 610 struct ieee80211_txb *txb = NULL;
diff --git a/drivers/staging/rtl8192su/r8192U_core.c b/drivers/staging/rtl8192su/r8192U_core.c
index 66274d7666ff..ccb9d5b8cd44 100644
--- a/drivers/staging/rtl8192su/r8192U_core.c
+++ b/drivers/staging/rtl8192su/r8192U_core.c
@@ -126,6 +126,8 @@ static struct usb_device_id rtl8192_usb_id_tbl[] = {
126 {USB_DEVICE(0x2001, 0x3301)}, 126 {USB_DEVICE(0x2001, 0x3301)},
127 /* Zinwell */ 127 /* Zinwell */
128 {USB_DEVICE(0x5a57, 0x0290)}, 128 {USB_DEVICE(0x5a57, 0x0290)},
129 /* Guillemot */
130 {USB_DEVICE(0x06f8, 0xe031)},
129 //92SU 131 //92SU
130 {USB_DEVICE(0x0bda, 0x8172)}, 132 {USB_DEVICE(0x0bda, 0x8172)},
131 {} 133 {}
@@ -1501,7 +1503,7 @@ static void rtl8192_rx_isr(struct urb *urb)
1501 urb->context = skb; 1503 urb->context = skb;
1502 skb_queue_tail(&priv->rx_queue, skb); 1504 skb_queue_tail(&priv->rx_queue, skb);
1503 err = usb_submit_urb(urb, GFP_ATOMIC); 1505 err = usb_submit_urb(urb, GFP_ATOMIC);
1504 if(err && err != EPERM) 1506 if(err && err != -EPERM)
1505 printk("can not submit rxurb, err is %x,URB status is %x\n",err,urb->status); 1507 printk("can not submit rxurb, err is %x,URB status is %x\n",err,urb->status);
1506} 1508}
1507 1509
@@ -7155,7 +7157,7 @@ void rtl8192SU_rx_nomal(struct sk_buff* skb)
7155 unicast_packet = true; 7157 unicast_packet = true;
7156 } 7158 }
7157 7159
7158 if(!ieee80211_rx(priv->ieee80211,skb, &stats)) { 7160 if(!ieee80211_rtl_rx(priv->ieee80211,skb, &stats)) {
7159 dev_kfree_skb_any(skb); 7161 dev_kfree_skb_any(skb);
7160 } else { 7162 } else {
7161 // priv->stats.rxoktotal++; //YJ,test,090108 7163 // priv->stats.rxoktotal++; //YJ,test,090108
@@ -7426,7 +7428,7 @@ static const struct net_device_ops rtl8192_netdev_ops = {
7426 .ndo_set_mac_address = r8192_set_mac_adr, 7428 .ndo_set_mac_address = r8192_set_mac_adr,
7427 .ndo_validate_addr = eth_validate_addr, 7429 .ndo_validate_addr = eth_validate_addr,
7428 .ndo_change_mtu = eth_change_mtu, 7430 .ndo_change_mtu = eth_change_mtu,
7429 .ndo_start_xmit = rtl8192_ieee80211_xmit, 7431 .ndo_start_xmit = rtl8192_ieee80211_rtl_xmit,
7430}; 7432};
7431 7433
7432static int __devinit rtl8192_usb_probe(struct usb_interface *intf, 7434static int __devinit rtl8192_usb_probe(struct usb_interface *intf,
@@ -7619,7 +7621,7 @@ void rtl8192_try_wake_queue(struct net_device *dev, int pri)
7619 spin_unlock_irqrestore(&priv->tx_lock,flags); 7621 spin_unlock_irqrestore(&priv->tx_lock,flags);
7620 7622
7621 if(enough_desc) 7623 if(enough_desc)
7622 ieee80211_wake_queue(priv->ieee80211); 7624 ieee80211_rtl_wake_queue(priv->ieee80211);
7623} 7625}
7624 7626
7625void EnableHWSecurityConfig8192(struct net_device *dev) 7627void EnableHWSecurityConfig8192(struct net_device *dev)
diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
index d397f1d68eb7..5f12d62658c9 100644
--- a/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
+++ b/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c
@@ -845,7 +845,7 @@ int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
845 { 845 {
846 if (len != ie[1]+2) 846 if (len != ie[1]+2)
847 { 847 {
848 printk("len:%d, ie:%d\n", len, ie[1]); 848 printk("len:%zu, ie:%d\n", len, ie[1]);
849 return -EINVAL; 849 return -EINVAL;
850 } 850 }
851 buf = kmalloc(len, GFP_KERNEL); 851 buf = kmalloc(len, GFP_KERNEL);
diff --git a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
index 26af43bb8390..512a57aebde3 100644
--- a/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192u/ieee80211/rtl819x_BAProc.c
@@ -340,7 +340,7 @@ int ieee80211_rx_ADDBAReq( struct ieee80211_device* ieee, struct sk_buff *skb)
340 340
341 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9) 341 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9)
342 { 342 {
343 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BAREQ(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9)); 343 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BAREQ(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9));
344 return -1; 344 return -1;
345 } 345 }
346 346
@@ -439,7 +439,7 @@ int ieee80211_rx_ADDBARsp( struct ieee80211_device* ieee, struct sk_buff *skb)
439 439
440 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9) 440 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 9)
441 { 441 {
442 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BARSP(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9)); 442 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in BARSP(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 9));
443 return -1; 443 return -1;
444 } 444 }
445 rsp = ( struct ieee80211_hdr_3addr*)skb->data; 445 rsp = ( struct ieee80211_hdr_3addr*)skb->data;
@@ -569,7 +569,7 @@ int ieee80211_rx_DELBA(struct ieee80211_device* ieee,struct sk_buff *skb)
569 569
570 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 6) 570 if (skb->len < sizeof( struct ieee80211_hdr_3addr) + 6)
571 { 571 {
572 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in DELBA(%d / %d)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 6)); 572 IEEE80211_DEBUG(IEEE80211_DL_ERR, " Invalid skb len in DELBA(%d / %zu)\n", skb->len, (sizeof( struct ieee80211_hdr_3addr) + 6));
573 return -1; 573 return -1;
574 } 574 }
575 575
diff --git a/drivers/staging/sm7xx/Kconfig b/drivers/staging/sm7xx/Kconfig
new file mode 100644
index 000000000000..204dbfc3c38b
--- /dev/null
+++ b/drivers/staging/sm7xx/Kconfig
@@ -0,0 +1,15 @@
1config FB_SM7XX
2 tristate "Silicon Motion SM7XX Frame Buffer Support"
3 depends on FB
4 select FB_CFB_FILLRECT
5 select FB_CFB_COPYAREA
6 select FB_CFB_IMAGEBLIT
7 help
8 Frame Buffer driver for the Silicon Motion SM7XX serial graphic card.
9
10config FB_SM7XX_ACCEL
11 bool "Siliconmotion Acceleration functions (EXPERIMENTAL)"
12 depends on FB_SM7XX && EXPERIMENTAL
13 help
14 This will compile the Trident frame buffer device with
15 acceleration functions.
diff --git a/drivers/staging/sm7xx/Makefile b/drivers/staging/sm7xx/Makefile
new file mode 100644
index 000000000000..f43cb9106305
--- /dev/null
+++ b/drivers/staging/sm7xx/Makefile
@@ -0,0 +1,3 @@
1obj-$(CONFIG_FB_SM7XX) += sm7xx.o
2
3sm7xx-y := smtcfb.o
diff --git a/drivers/staging/sm7xx/TODO b/drivers/staging/sm7xx/TODO
new file mode 100644
index 000000000000..1f61f5e11cf5
--- /dev/null
+++ b/drivers/staging/sm7xx/TODO
@@ -0,0 +1,10 @@
1TODO:
2- Dual head support
3- use kernel coding style
4- checkpatch.pl clean
5- refine the code and remove unused code
6- use kernel framebuffer mode setting instead of hard code
7- move it to drivers/video/sm7xx/ or make it be drivers/video/sm7xxfb.c
8
9Please send any patches to Greg Kroah-Hartman <greg@kroah.com> and
10Teddy Wang <teddy.wang@siliconmotion.com.cn>.
diff --git a/drivers/staging/sm7xx/smtc2d.c b/drivers/staging/sm7xx/smtc2d.c
new file mode 100644
index 000000000000..133b86c6a678
--- /dev/null
+++ b/drivers/staging/sm7xx/smtc2d.c
@@ -0,0 +1,979 @@
1/*
2 * Silicon Motion SM7XX 2D drawing engine functions.
3 *
4 * Copyright (C) 2006 Silicon Motion Technology Corp.
5 * Author: Boyod boyod.yang@siliconmotion.com.cn
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive for
12 * more details.
13 *
14 * Version 0.10.26192.21.01
15 * - Add PowerPC support
16 * - Add 2D support for Lynx -
17 * Verified on 2.6.19.2
18 * Boyod.yang <boyod.yang@siliconmotion.com.cn>
19 */
20
21unsigned char smtc_de_busy;
22
23void SMTC_write2Dreg(unsigned long nOffset, unsigned long nData)
24{
25 writel(nData, smtc_2DBaseAddress + nOffset);
26}
27
28unsigned long SMTC_read2Dreg(unsigned long nOffset)
29{
30 return readl(smtc_2DBaseAddress + nOffset);
31}
32
33void SMTC_write2Ddataport(unsigned long nOffset, unsigned long nData)
34{
35 writel(nData, smtc_2Ddataport + nOffset);
36}
37
38/**********************************************************************
39 *
40 * deInit
41 *
42 * Purpose
43 * Drawing engine initialization.
44 *
45 **********************************************************************/
46
47void deInit(unsigned int nModeWidth, unsigned int nModeHeight,
48 unsigned int bpp)
49{
50 /* Get current power configuration. */
51 unsigned char clock;
52 clock = smtc_seqr(0x21);
53
54 /* initialize global 'mutex lock' variable */
55 smtc_de_busy = 0;
56
57 /* Enable 2D Drawing Engine */
58 smtc_seqw(0x21, clock & 0xF8);
59
60 SMTC_write2Dreg(DE_CLIP_TL,
61 FIELD_VALUE(0, DE_CLIP_TL, TOP, 0) |
62 FIELD_SET(0, DE_CLIP_TL, STATUS, DISABLE) |
63 FIELD_SET(0, DE_CLIP_TL, INHIBIT, OUTSIDE) |
64 FIELD_VALUE(0, DE_CLIP_TL, LEFT, 0));
65
66 if (bpp >= 24) {
67 SMTC_write2Dreg(DE_PITCH,
68 FIELD_VALUE(0, DE_PITCH, DESTINATION,
69 nModeWidth * 3) | FIELD_VALUE(0,
70 DE_PITCH,
71 SOURCE,
72 nModeWidth
73 * 3));
74 } else {
75 SMTC_write2Dreg(DE_PITCH,
76 FIELD_VALUE(0, DE_PITCH, DESTINATION,
77 nModeWidth) | FIELD_VALUE(0,
78 DE_PITCH,
79 SOURCE,
80 nModeWidth));
81 }
82
83 SMTC_write2Dreg(DE_WINDOW_WIDTH,
84 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
85 nModeWidth) | FIELD_VALUE(0,
86 DE_WINDOW_WIDTH,
87 SOURCE,
88 nModeWidth));
89
90 switch (bpp) {
91 case 8:
92 SMTC_write2Dreg(DE_STRETCH_FORMAT,
93 FIELD_SET(0, DE_STRETCH_FORMAT, PATTERN_XY,
94 NORMAL) | FIELD_VALUE(0,
95 DE_STRETCH_FORMAT,
96 PATTERN_Y,
97 0) |
98 FIELD_VALUE(0, DE_STRETCH_FORMAT, PATTERN_X,
99 0) | FIELD_SET(0, DE_STRETCH_FORMAT,
100 PIXEL_FORMAT,
101 8) | FIELD_SET(0,
102 DE_STRETCH_FORMAT,
103 ADDRESSING,
104 XY) |
105 FIELD_VALUE(0, DE_STRETCH_FORMAT,
106 SOURCE_HEIGHT, 3));
107 break;
108 case 24:
109 SMTC_write2Dreg(DE_STRETCH_FORMAT,
110 FIELD_SET(0, DE_STRETCH_FORMAT, PATTERN_XY,
111 NORMAL) | FIELD_VALUE(0,
112 DE_STRETCH_FORMAT,
113 PATTERN_Y,
114 0) |
115 FIELD_VALUE(0, DE_STRETCH_FORMAT, PATTERN_X,
116 0) | FIELD_SET(0, DE_STRETCH_FORMAT,
117 PIXEL_FORMAT,
118 24) | FIELD_SET(0,
119 DE_STRETCH_FORMAT,
120 ADDRESSING,
121 XY) |
122 FIELD_VALUE(0, DE_STRETCH_FORMAT,
123 SOURCE_HEIGHT, 3));
124 break;
125 case 16:
126 default:
127 SMTC_write2Dreg(DE_STRETCH_FORMAT,
128 FIELD_SET(0, DE_STRETCH_FORMAT, PATTERN_XY,
129 NORMAL) | FIELD_VALUE(0,
130 DE_STRETCH_FORMAT,
131 PATTERN_Y,
132 0) |
133 FIELD_VALUE(0, DE_STRETCH_FORMAT, PATTERN_X,
134 0) | FIELD_SET(0, DE_STRETCH_FORMAT,
135 PIXEL_FORMAT,
136 16) | FIELD_SET(0,
137 DE_STRETCH_FORMAT,
138 ADDRESSING,
139 XY) |
140 FIELD_VALUE(0, DE_STRETCH_FORMAT,
141 SOURCE_HEIGHT, 3));
142 break;
143 }
144
145 SMTC_write2Dreg(DE_MASKS,
146 FIELD_VALUE(0, DE_MASKS, BYTE_MASK, 0xFFFF) |
147 FIELD_VALUE(0, DE_MASKS, BIT_MASK, 0xFFFF));
148 SMTC_write2Dreg(DE_COLOR_COMPARE_MASK,
149 FIELD_VALUE(0, DE_COLOR_COMPARE_MASK, MASKS, \
150 0xFFFFFF));
151 SMTC_write2Dreg(DE_COLOR_COMPARE,
152 FIELD_VALUE(0, DE_COLOR_COMPARE, COLOR, 0xFFFFFF));
153}
154
155void deVerticalLine(unsigned long dst_base,
156 unsigned long dst_pitch,
157 unsigned long nX,
158 unsigned long nY,
159 unsigned long dst_height, unsigned long nColor)
160{
161 deWaitForNotBusy();
162
163 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
164 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE, ADDRESS,
165 dst_base));
166
167 SMTC_write2Dreg(DE_PITCH,
168 FIELD_VALUE(0, DE_PITCH, DESTINATION, dst_pitch) |
169 FIELD_VALUE(0, DE_PITCH, SOURCE, dst_pitch));
170
171 SMTC_write2Dreg(DE_WINDOW_WIDTH,
172 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
173 dst_pitch) | FIELD_VALUE(0, DE_WINDOW_WIDTH,
174 SOURCE,
175 dst_pitch));
176
177 SMTC_write2Dreg(DE_FOREGROUND,
178 FIELD_VALUE(0, DE_FOREGROUND, COLOR, nColor));
179
180 SMTC_write2Dreg(DE_DESTINATION,
181 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
182 FIELD_VALUE(0, DE_DESTINATION, X, nX) |
183 FIELD_VALUE(0, DE_DESTINATION, Y, nY));
184
185 SMTC_write2Dreg(DE_DIMENSION,
186 FIELD_VALUE(0, DE_DIMENSION, X, 1) |
187 FIELD_VALUE(0, DE_DIMENSION, Y_ET, dst_height));
188
189 SMTC_write2Dreg(DE_CONTROL,
190 FIELD_SET(0, DE_CONTROL, STATUS, START) |
191 FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT) |
192 FIELD_SET(0, DE_CONTROL, MAJOR, Y) |
193 FIELD_SET(0, DE_CONTROL, STEP_X, NEGATIVE) |
194 FIELD_SET(0, DE_CONTROL, STEP_Y, POSITIVE) |
195 FIELD_SET(0, DE_CONTROL, LAST_PIXEL, OFF) |
196 FIELD_SET(0, DE_CONTROL, COMMAND, SHORT_STROKE) |
197 FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
198 FIELD_VALUE(0, DE_CONTROL, ROP, 0x0C));
199
200 smtc_de_busy = 1;
201}
202
203void deHorizontalLine(unsigned long dst_base,
204 unsigned long dst_pitch,
205 unsigned long nX,
206 unsigned long nY,
207 unsigned long dst_width, unsigned long nColor)
208{
209 deWaitForNotBusy();
210
211 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
212 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE, ADDRESS,
213 dst_base));
214
215 SMTC_write2Dreg(DE_PITCH,
216 FIELD_VALUE(0, DE_PITCH, DESTINATION, dst_pitch) |
217 FIELD_VALUE(0, DE_PITCH, SOURCE, dst_pitch));
218
219 SMTC_write2Dreg(DE_WINDOW_WIDTH,
220 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
221 dst_pitch) | FIELD_VALUE(0, DE_WINDOW_WIDTH,
222 SOURCE,
223 dst_pitch));
224 SMTC_write2Dreg(DE_FOREGROUND,
225 FIELD_VALUE(0, DE_FOREGROUND, COLOR, nColor));
226 SMTC_write2Dreg(DE_DESTINATION,
227 FIELD_SET(0, DE_DESTINATION, WRAP,
228 DISABLE) | FIELD_VALUE(0, DE_DESTINATION, X,
229 nX) | FIELD_VALUE(0,
230 DE_DESTINATION,
231 Y,
232 nY));
233 SMTC_write2Dreg(DE_DIMENSION,
234 FIELD_VALUE(0, DE_DIMENSION, X,
235 dst_width) | FIELD_VALUE(0, DE_DIMENSION,
236 Y_ET, 1));
237 SMTC_write2Dreg(DE_CONTROL,
238 FIELD_SET(0, DE_CONTROL, STATUS, START) | FIELD_SET(0,
239 DE_CONTROL,
240 DIRECTION,
241 RIGHT_TO_LEFT)
242 | FIELD_SET(0, DE_CONTROL, MAJOR, X) | FIELD_SET(0,
243 DE_CONTROL,
244 STEP_X,
245 POSITIVE)
246 | FIELD_SET(0, DE_CONTROL, STEP_Y,
247 NEGATIVE) | FIELD_SET(0, DE_CONTROL,
248 LAST_PIXEL,
249 OFF) | FIELD_SET(0,
250 DE_CONTROL,
251 COMMAND,
252 SHORT_STROKE)
253 | FIELD_SET(0, DE_CONTROL, ROP_SELECT,
254 ROP2) | FIELD_VALUE(0, DE_CONTROL, ROP,
255 0x0C));
256
257 smtc_de_busy = 1;
258}
259
260void deLine(unsigned long dst_base,
261 unsigned long dst_pitch,
262 unsigned long nX1,
263 unsigned long nY1,
264 unsigned long nX2, unsigned long nY2, unsigned long nColor)
265{
266 unsigned long nCommand =
267 FIELD_SET(0, DE_CONTROL, STATUS, START) |
268 FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT) |
269 FIELD_SET(0, DE_CONTROL, MAJOR, X) |
270 FIELD_SET(0, DE_CONTROL, STEP_X, POSITIVE) |
271 FIELD_SET(0, DE_CONTROL, STEP_Y, POSITIVE) |
272 FIELD_SET(0, DE_CONTROL, LAST_PIXEL, OFF) |
273 FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
274 FIELD_VALUE(0, DE_CONTROL, ROP, 0x0C);
275 unsigned long DeltaX;
276 unsigned long DeltaY;
277
278 /* Calculate delta X */
279 if (nX1 <= nX2)
280 DeltaX = nX2 - nX1;
281 else {
282 DeltaX = nX1 - nX2;
283 nCommand = FIELD_SET(nCommand, DE_CONTROL, STEP_X, NEGATIVE);
284 }
285
286 /* Calculate delta Y */
287 if (nY1 <= nY2)
288 DeltaY = nY2 - nY1;
289 else {
290 DeltaY = nY1 - nY2;
291 nCommand = FIELD_SET(nCommand, DE_CONTROL, STEP_Y, NEGATIVE);
292 }
293
294 /* Determine the major axis */
295 if (DeltaX < DeltaY)
296 nCommand = FIELD_SET(nCommand, DE_CONTROL, MAJOR, Y);
297
298 /* Vertical line? */
299 if (nX1 == nX2)
300 deVerticalLine(dst_base, dst_pitch, nX1, nY1, DeltaY, nColor);
301
302 /* Horizontal line? */
303 else if (nY1 == nY2)
304 deHorizontalLine(dst_base, dst_pitch, nX1, nY1, \
305 DeltaX, nColor);
306
307 /* Diagonal line? */
308 else if (DeltaX == DeltaY) {
309 deWaitForNotBusy();
310
311 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
312 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE,
313 ADDRESS, dst_base));
314
315 SMTC_write2Dreg(DE_PITCH,
316 FIELD_VALUE(0, DE_PITCH, DESTINATION,
317 dst_pitch) | FIELD_VALUE(0,
318 DE_PITCH,
319 SOURCE,
320 dst_pitch));
321
322 SMTC_write2Dreg(DE_WINDOW_WIDTH,
323 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
324 dst_pitch) | FIELD_VALUE(0,
325 DE_WINDOW_WIDTH,
326 SOURCE,
327 dst_pitch));
328
329 SMTC_write2Dreg(DE_FOREGROUND,
330 FIELD_VALUE(0, DE_FOREGROUND, COLOR, nColor));
331
332 SMTC_write2Dreg(DE_DESTINATION,
333 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
334 FIELD_VALUE(0, DE_DESTINATION, X, 1) |
335 FIELD_VALUE(0, DE_DESTINATION, Y, nY1));
336
337 SMTC_write2Dreg(DE_DIMENSION,
338 FIELD_VALUE(0, DE_DIMENSION, X, 1) |
339 FIELD_VALUE(0, DE_DIMENSION, Y_ET, DeltaX));
340
341 SMTC_write2Dreg(DE_CONTROL,
342 FIELD_SET(nCommand, DE_CONTROL, COMMAND,
343 SHORT_STROKE));
344 }
345
346 /* Generic line */
347 else {
348 unsigned int k1, k2, et, w;
349 if (DeltaX < DeltaY) {
350 k1 = 2 * DeltaX;
351 et = k1 - DeltaY;
352 k2 = et - DeltaY;
353 w = DeltaY + 1;
354 } else {
355 k1 = 2 * DeltaY;
356 et = k1 - DeltaX;
357 k2 = et - DeltaX;
358 w = DeltaX + 1;
359 }
360
361 deWaitForNotBusy();
362
363 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
364 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE,
365 ADDRESS, dst_base));
366
367 SMTC_write2Dreg(DE_PITCH,
368 FIELD_VALUE(0, DE_PITCH, DESTINATION,
369 dst_pitch) | FIELD_VALUE(0,
370 DE_PITCH,
371 SOURCE,
372 dst_pitch));
373
374 SMTC_write2Dreg(DE_WINDOW_WIDTH,
375 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
376 dst_pitch) | FIELD_VALUE(0,
377 DE_WINDOW_WIDTH,
378 SOURCE,
379 dst_pitch));
380
381 SMTC_write2Dreg(DE_FOREGROUND,
382 FIELD_VALUE(0, DE_FOREGROUND, COLOR, nColor));
383
384 SMTC_write2Dreg(DE_SOURCE,
385 FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
386 FIELD_VALUE(0, DE_SOURCE, X_K1, k1) |
387 FIELD_VALUE(0, DE_SOURCE, Y_K2, k2));
388
389 SMTC_write2Dreg(DE_DESTINATION,
390 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
391 FIELD_VALUE(0, DE_DESTINATION, X, nX1) |
392 FIELD_VALUE(0, DE_DESTINATION, Y, nY1));
393
394 SMTC_write2Dreg(DE_DIMENSION,
395 FIELD_VALUE(0, DE_DIMENSION, X, w) |
396 FIELD_VALUE(0, DE_DIMENSION, Y_ET, et));
397
398 SMTC_write2Dreg(DE_CONTROL,
399 FIELD_SET(nCommand, DE_CONTROL, COMMAND,
400 LINE_DRAW));
401 }
402
403 smtc_de_busy = 1;
404}
405
406void deFillRect(unsigned long dst_base,
407 unsigned long dst_pitch,
408 unsigned long dst_X,
409 unsigned long dst_Y,
410 unsigned long dst_width,
411 unsigned long dst_height, unsigned long nColor)
412{
413 deWaitForNotBusy();
414
415 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
416 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE, ADDRESS,
417 dst_base));
418
419 if (dst_pitch) {
420 SMTC_write2Dreg(DE_PITCH,
421 FIELD_VALUE(0, DE_PITCH, DESTINATION,
422 dst_pitch) | FIELD_VALUE(0,
423 DE_PITCH,
424 SOURCE,
425 dst_pitch));
426
427 SMTC_write2Dreg(DE_WINDOW_WIDTH,
428 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
429 dst_pitch) | FIELD_VALUE(0,
430 DE_WINDOW_WIDTH,
431 SOURCE,
432 dst_pitch));
433 }
434
435 SMTC_write2Dreg(DE_FOREGROUND,
436 FIELD_VALUE(0, DE_FOREGROUND, COLOR, nColor));
437
438 SMTC_write2Dreg(DE_DESTINATION,
439 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
440 FIELD_VALUE(0, DE_DESTINATION, X, dst_X) |
441 FIELD_VALUE(0, DE_DESTINATION, Y, dst_Y));
442
443 SMTC_write2Dreg(DE_DIMENSION,
444 FIELD_VALUE(0, DE_DIMENSION, X, dst_width) |
445 FIELD_VALUE(0, DE_DIMENSION, Y_ET, dst_height));
446
447 SMTC_write2Dreg(DE_CONTROL,
448 FIELD_SET(0, DE_CONTROL, STATUS, START) |
449 FIELD_SET(0, DE_CONTROL, DIRECTION, LEFT_TO_RIGHT) |
450 FIELD_SET(0, DE_CONTROL, LAST_PIXEL, OFF) |
451 FIELD_SET(0, DE_CONTROL, COMMAND, RECTANGLE_FILL) |
452 FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
453 FIELD_VALUE(0, DE_CONTROL, ROP, 0x0C));
454
455 smtc_de_busy = 1;
456}
457
458/**********************************************************************
459 *
460 * deRotatePattern
461 *
462 * Purpose
463 * Rotate the given pattern if necessary
464 *
465 * Parameters
466 * [in]
467 * pPattern - Pointer to DE_SURFACE structure containing
468 * pattern attributes
469 * patternX - X position (0-7) of pattern origin
470 * patternY - Y position (0-7) of pattern origin
471 *
472 * [out]
473 * pattern_dstaddr - Pointer to pre-allocated buffer containing
474 * rotated pattern
475 *
476 **********************************************************************/
477void deRotatePattern(unsigned char *pattern_dstaddr,
478 unsigned long pattern_src_addr,
479 unsigned long pattern_BPP,
480 unsigned long pattern_stride, int patternX, int patternY)
481{
482 unsigned int i;
483 unsigned long pattern[PATTERN_WIDTH * PATTERN_HEIGHT];
484 unsigned int x, y;
485 unsigned char *pjPatByte;
486
487 if (pattern_dstaddr != NULL) {
488 deWaitForNotBusy();
489
490 if (patternX || patternY) {
491 /* Rotate pattern */
492 pjPatByte = (unsigned char *)pattern;
493
494 switch (pattern_BPP) {
495 case 8:
496 {
497 for (y = 0; y < 8; y++) {
498 unsigned char *pjBuffer =
499 pattern_dstaddr +
500 ((patternY + y) & 7) * 8;
501 for (x = 0; x < 8; x++) {
502 pjBuffer[(patternX +
503 x) & 7] =
504 pjPatByte[x];
505 }
506 pjPatByte += pattern_stride;
507 }
508 break;
509 }
510
511 case 16:
512 {
513 for (y = 0; y < 8; y++) {
514 unsigned short *pjBuffer =
515 (unsigned short *)
516 pattern_dstaddr +
517 ((patternY + y) & 7) * 8;
518 for (x = 0; x < 8; x++) {
519 pjBuffer[(patternX +
520 x) & 7] =
521 ((unsigned short *)
522 pjPatByte)[x];
523 }
524 pjPatByte += pattern_stride;
525 }
526 break;
527 }
528
529 case 32:
530 {
531 for (y = 0; y < 8; y++) {
532 unsigned long *pjBuffer =
533 (unsigned long *)
534 pattern_dstaddr +
535 ((patternY + y) & 7) * 8;
536 for (x = 0; x < 8; x++) {
537 pjBuffer[(patternX +
538 x) & 7] =
539 ((unsigned long *)
540 pjPatByte)[x];
541 }
542 pjPatByte += pattern_stride;
543 }
544 break;
545 }
546 }
547 } else {
548 /*Don't rotate,just copy pattern into pattern_dstaddr*/
549 for (i = 0; i < (pattern_BPP * 2); i++) {
550 ((unsigned long *)pattern_dstaddr)[i] =
551 pattern[i];
552 }
553 }
554
555 }
556}
557
558/**********************************************************************
559 *
560 * deCopy
561 *
562 * Purpose
563 * Copy a rectangular area of the source surface to a destination surface
564 *
565 * Remarks
566 * Source bitmap must have the same color depth (BPP) as the destination
567 * bitmap.
568 *
569**********************************************************************/
570void deCopy(unsigned long dst_base,
571 unsigned long dst_pitch,
572 unsigned long dst_BPP,
573 unsigned long dst_X,
574 unsigned long dst_Y,
575 unsigned long dst_width,
576 unsigned long dst_height,
577 unsigned long src_base,
578 unsigned long src_pitch,
579 unsigned long src_X,
580 unsigned long src_Y, pTransparent pTransp, unsigned char nROP2)
581{
582 unsigned long nDirection = 0;
583 unsigned long nTransparent = 0;
584 /* Direction of ROP2 operation:
585 * 1 = Left to Right,
586 * (-1) = Right to Left
587 */
588 unsigned long opSign = 1;
589 /* xWidth is in pixels */
590 unsigned long xWidth = 192 / (dst_BPP / 8);
591 unsigned long de_ctrl = 0;
592
593 deWaitForNotBusy();
594
595 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE,
596 FIELD_VALUE(0, DE_WINDOW_DESTINATION_BASE, ADDRESS,
597 dst_base));
598
599 SMTC_write2Dreg(DE_WINDOW_SOURCE_BASE,
600 FIELD_VALUE(0, DE_WINDOW_SOURCE_BASE, ADDRESS,
601 src_base));
602
603 if (dst_pitch && src_pitch) {
604 SMTC_write2Dreg(DE_PITCH,
605 FIELD_VALUE(0, DE_PITCH, DESTINATION,
606 dst_pitch) | FIELD_VALUE(0,
607 DE_PITCH,
608 SOURCE,
609 src_pitch));
610
611 SMTC_write2Dreg(DE_WINDOW_WIDTH,
612 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
613 dst_pitch) | FIELD_VALUE(0,
614 DE_WINDOW_WIDTH,
615 SOURCE,
616 src_pitch));
617 }
618
619 /* Set transparent bits if necessary */
620 if (pTransp != NULL) {
621 nTransparent =
622 pTransp->match | pTransp->select | pTransp->control;
623
624 /* Set color compare register */
625 SMTC_write2Dreg(DE_COLOR_COMPARE,
626 FIELD_VALUE(0, DE_COLOR_COMPARE, COLOR,
627 pTransp->color));
628 }
629
630 /* Determine direction of operation */
631 if (src_Y < dst_Y) {
632 /* +----------+
633 |S |
634 | +----------+
635 | | | |
636 | | | |
637 +---|------+ |
638 | D |
639 +----------+ */
640
641 nDirection = BOTTOM_TO_TOP;
642 } else if (src_Y > dst_Y) {
643 /* +----------+
644 |D |
645 | +----------+
646 | | | |
647 | | | |
648 +---|------+ |
649 | S |
650 +----------+ */
651
652 nDirection = TOP_TO_BOTTOM;
653 } else {
654 /* src_Y == dst_Y */
655
656 if (src_X <= dst_X) {
657 /* +------+---+------+
658 |S | | D|
659 | | | |
660 | | | |
661 | | | |
662 +------+---+------+ */
663
664 nDirection = RIGHT_TO_LEFT;
665 } else {
666 /* src_X > dst_X */
667
668 /* +------+---+------+
669 |D | | S|
670 | | | |
671 | | | |
672 | | | |
673 +------+---+------+ */
674
675 nDirection = LEFT_TO_RIGHT;
676 }
677 }
678
679 if ((nDirection == BOTTOM_TO_TOP) || (nDirection == RIGHT_TO_LEFT)) {
680 src_X += dst_width - 1;
681 src_Y += dst_height - 1;
682 dst_X += dst_width - 1;
683 dst_Y += dst_height - 1;
684 opSign = (-1);
685 }
686
687 if (dst_BPP >= 24) {
688 src_X *= 3;
689 src_Y *= 3;
690 dst_X *= 3;
691 dst_Y *= 3;
692 dst_width *= 3;
693 if ((nDirection == BOTTOM_TO_TOP)
694 || (nDirection == RIGHT_TO_LEFT)) {
695 src_X += 2;
696 dst_X += 2;
697 }
698 }
699
700 /* Workaround for 192 byte hw bug */
701 if ((nROP2 != 0x0C) && ((dst_width * (dst_BPP / 8)) >= 192)) {
702 /*
703 * Perform the ROP2 operation in chunks of (xWidth *
704 * dst_height)
705 */
706 while (1) {
707 deWaitForNotBusy();
708
709 SMTC_write2Dreg(DE_SOURCE,
710 FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
711 FIELD_VALUE(0, DE_SOURCE, X_K1, src_X) |
712 FIELD_VALUE(0, DE_SOURCE, Y_K2, src_Y));
713
714 SMTC_write2Dreg(DE_DESTINATION,
715 FIELD_SET(0, DE_DESTINATION, WRAP,
716 DISABLE) | FIELD_VALUE(0,
717 DE_DESTINATION,
718 X,
719 dst_X)
720 | FIELD_VALUE(0, DE_DESTINATION, Y,
721 dst_Y));
722
723 SMTC_write2Dreg(DE_DIMENSION,
724 FIELD_VALUE(0, DE_DIMENSION, X,
725 xWidth) | FIELD_VALUE(0,
726 DE_DIMENSION,
727 Y_ET,
728 dst_height));
729
730 de_ctrl =
731 FIELD_VALUE(0, DE_CONTROL, ROP,
732 nROP2) | nTransparent | FIELD_SET(0,
733 DE_CONTROL,
734 ROP_SELECT,
735 ROP2)
736 | FIELD_SET(0, DE_CONTROL, COMMAND,
737 BITBLT) | ((nDirection ==
738 1) ? FIELD_SET(0,
739 DE_CONTROL,
740 DIRECTION,
741 RIGHT_TO_LEFT)
742 : FIELD_SET(0, DE_CONTROL,
743 DIRECTION,
744 LEFT_TO_RIGHT)) |
745 FIELD_SET(0, DE_CONTROL, STATUS, START);
746
747 SMTC_write2Dreg(DE_CONTROL, de_ctrl);
748
749 src_X += (opSign * xWidth);
750 dst_X += (opSign * xWidth);
751 dst_width -= xWidth;
752
753 if (dst_width <= 0) {
754 /* ROP2 operation is complete */
755 break;
756 }
757
758 if (xWidth > dst_width)
759 xWidth = dst_width;
760 }
761 } else {
762 deWaitForNotBusy();
763 SMTC_write2Dreg(DE_SOURCE,
764 FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
765 FIELD_VALUE(0, DE_SOURCE, X_K1, src_X) |
766 FIELD_VALUE(0, DE_SOURCE, Y_K2, src_Y));
767
768 SMTC_write2Dreg(DE_DESTINATION,
769 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
770 FIELD_VALUE(0, DE_DESTINATION, X, dst_X) |
771 FIELD_VALUE(0, DE_DESTINATION, Y, dst_Y));
772
773 SMTC_write2Dreg(DE_DIMENSION,
774 FIELD_VALUE(0, DE_DIMENSION, X, dst_width) |
775 FIELD_VALUE(0, DE_DIMENSION, Y_ET, dst_height));
776
777 de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, nROP2) |
778 nTransparent |
779 FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
780 FIELD_SET(0, DE_CONTROL, COMMAND, BITBLT) |
781 ((nDirection == 1) ? FIELD_SET(0, DE_CONTROL, DIRECTION,
782 RIGHT_TO_LEFT)
783 : FIELD_SET(0, DE_CONTROL, DIRECTION,
784 LEFT_TO_RIGHT)) | FIELD_SET(0, DE_CONTROL,
785 STATUS, START);
786 SMTC_write2Dreg(DE_CONTROL, de_ctrl);
787 }
788
789 smtc_de_busy = 1;
790}
791
792/*
793 * This function sets the pixel format that will apply to the 2D Engine.
794 */
795void deSetPixelFormat(unsigned long bpp)
796{
797 unsigned long de_format;
798
799 de_format = SMTC_read2Dreg(DE_STRETCH_FORMAT);
800
801 switch (bpp) {
802 case 8:
803 de_format =
804 FIELD_SET(de_format, DE_STRETCH_FORMAT, PIXEL_FORMAT, 8);
805 break;
806 default:
807 case 16:
808 de_format =
809 FIELD_SET(de_format, DE_STRETCH_FORMAT, PIXEL_FORMAT, 16);
810 break;
811 case 32:
812 de_format =
813 FIELD_SET(de_format, DE_STRETCH_FORMAT, PIXEL_FORMAT, 32);
814 break;
815 }
816
817 SMTC_write2Dreg(DE_STRETCH_FORMAT, de_format);
818}
819
820/*
821 * System memory to Video memory monochrome expansion.
822 *
823 * Source is monochrome image in system memory. This function expands the
824 * monochrome data to color image in video memory.
825 */
826
827long deSystemMem2VideoMemMonoBlt(const char *pSrcbuf,
828 long srcDelta,
829 unsigned long startBit,
830 unsigned long dBase,
831 unsigned long dPitch,
832 unsigned long bpp,
833 unsigned long dx, unsigned long dy,
834 unsigned long width, unsigned long height,
835 unsigned long fColor,
836 unsigned long bColor,
837 unsigned long rop2) {
838 unsigned long bytePerPixel;
839 unsigned long ulBytesPerScan;
840 unsigned long ul4BytesPerScan;
841 unsigned long ulBytesRemain;
842 unsigned long de_ctrl = 0;
843 unsigned char ajRemain[4];
844 long i, j;
845
846 bytePerPixel = bpp / 8;
847
848 /* Just make sure the start bit is within legal range */
849 startBit &= 7;
850
851 ulBytesPerScan = (width + startBit + 7) / 8;
852 ul4BytesPerScan = ulBytesPerScan & ~3;
853 ulBytesRemain = ulBytesPerScan & 3;
854
855 if (smtc_de_busy)
856 deWaitForNotBusy();
857
858 /*
859 * 2D Source Base. Use 0 for HOST Blt.
860 */
861
862 SMTC_write2Dreg(DE_WINDOW_SOURCE_BASE, 0);
863
864 /*
865 * 2D Destination Base.
866 *
867 * It is an address offset (128 bit aligned) from the beginning of
868 * frame buffer.
869 */
870
871 SMTC_write2Dreg(DE_WINDOW_DESTINATION_BASE, dBase);
872
873 if (dPitch) {
874
875 /*
876 * Program pitch (distance between the 1st points of two
877 * adjacent lines).
878 *
879 * Note that input pitch is BYTE value, but the 2D Pitch
880 * register uses pixel values. Need Byte to pixel convertion.
881 */
882
883 SMTC_write2Dreg(DE_PITCH,
884 FIELD_VALUE(0, DE_PITCH, DESTINATION,
885 dPitch /
886 bytePerPixel) | FIELD_VALUE(0,
887 DE_PITCH,
888 SOURCE,
889 dPitch /
890 bytePerPixel));
891
892 /* Screen Window width in Pixels.
893 *
894 * 2D engine uses this value to calculate the linear address in
895 * frame buffer for a given point.
896 */
897
898 SMTC_write2Dreg(DE_WINDOW_WIDTH,
899 FIELD_VALUE(0, DE_WINDOW_WIDTH, DESTINATION,
900 (dPitch /
901 bytePerPixel)) | FIELD_VALUE(0,
902 DE_WINDOW_WIDTH,
903 SOURCE,
904 (dPitch
905 /
906 bytePerPixel)));
907 }
908 /* Note: For 2D Source in Host Write, only X_K1 field is needed, and
909 * Y_K2 field is not used. For mono bitmap, use startBit for X_K1.
910 */
911
912 SMTC_write2Dreg(DE_SOURCE,
913 FIELD_SET(0, DE_SOURCE, WRAP, DISABLE) |
914 FIELD_VALUE(0, DE_SOURCE, X_K1, startBit) |
915 FIELD_VALUE(0, DE_SOURCE, Y_K2, 0));
916
917 SMTC_write2Dreg(DE_DESTINATION,
918 FIELD_SET(0, DE_DESTINATION, WRAP, DISABLE) |
919 FIELD_VALUE(0, DE_DESTINATION, X, dx) |
920 FIELD_VALUE(0, DE_DESTINATION, Y, dy));
921
922 SMTC_write2Dreg(DE_DIMENSION,
923 FIELD_VALUE(0, DE_DIMENSION, X, width) |
924 FIELD_VALUE(0, DE_DIMENSION, Y_ET, height));
925
926 SMTC_write2Dreg(DE_FOREGROUND, fColor);
927 SMTC_write2Dreg(DE_BACKGROUND, bColor);
928
929 if (bpp)
930 deSetPixelFormat(bpp);
931 /* Set the pixel format of the destination */
932
933 de_ctrl = FIELD_VALUE(0, DE_CONTROL, ROP, rop2) |
934 FIELD_SET(0, DE_CONTROL, ROP_SELECT, ROP2) |
935 FIELD_SET(0, DE_CONTROL, COMMAND, HOST_WRITE) |
936 FIELD_SET(0, DE_CONTROL, HOST, MONO) |
937 FIELD_SET(0, DE_CONTROL, STATUS, START);
938
939 SMTC_write2Dreg(DE_CONTROL, de_ctrl | deGetTransparency());
940
941 /* Write MONO data (line by line) to 2D Engine data port */
942 for (i = 0; i < height; i++) {
943 /* For each line, send the data in chunks of 4 bytes */
944 for (j = 0; j < (ul4BytesPerScan / 4); j++)
945 SMTC_write2Ddataport(0,
946 *(unsigned long *)(pSrcbuf +
947 (j * 4)));
948
949 if (ulBytesRemain) {
950 memcpy(ajRemain, pSrcbuf + ul4BytesPerScan,
951 ulBytesRemain);
952 SMTC_write2Ddataport(0, *(unsigned long *)ajRemain);
953 }
954
955 pSrcbuf += srcDelta;
956 }
957 smtc_de_busy = 1;
958
959 return 0;
960}
961
962/*
963 * This function gets the transparency status from DE_CONTROL register.
964 * It returns a double word with the transparent fields properly set,
965 * while other fields are 0.
966 */
967unsigned long deGetTransparency(void)
968{
969 unsigned long de_ctrl;
970
971 de_ctrl = SMTC_read2Dreg(DE_CONTROL);
972
973 de_ctrl &=
974 FIELD_MASK(DE_CONTROL_TRANSPARENCY_MATCH) |
975 FIELD_MASK(DE_CONTROL_TRANSPARENCY_SELECT) |
976 FIELD_MASK(DE_CONTROL_TRANSPARENCY);
977
978 return de_ctrl;
979}
diff --git a/drivers/staging/sm7xx/smtc2d.h b/drivers/staging/sm7xx/smtc2d.h
new file mode 100644
index 000000000000..38d0c335322b
--- /dev/null
+++ b/drivers/staging/sm7xx/smtc2d.h
@@ -0,0 +1,530 @@
1/*
2 * Silicon Motion SM712 2D drawing engine functions.
3 *
4 * Copyright (C) 2006 Silicon Motion Technology Corp.
5 * Author: Ge Wang, gewang@siliconmotion.com
6 *
7 * Copyright (C) 2009 Lemote, Inc.
8 * Author: Wu Zhangjin, wuzj@lemote.com
9 *
10 * This file is subject to the terms and conditions of the GNU General Public
11 * License. See the file COPYING in the main directory of this archive for
12 * more details.
13 */
14
15#ifndef NULL
16#define NULL 0
17#endif
18
19/* Internal macros */
20
21#define _F_START(f) (0 ? f)
22#define _F_END(f) (1 ? f)
23#define _F_SIZE(f) (1 + _F_END(f) - _F_START(f))
24#define _F_MASK(f) (((1ULL << _F_SIZE(f)) - 1) << _F_START(f))
25#define _F_NORMALIZE(v, f) (((v) & _F_MASK(f)) >> _F_START(f))
26#define _F_DENORMALIZE(v, f) (((v) << _F_START(f)) & _F_MASK(f))
27
28/* Global macros */
29
30#define FIELD_GET(x, reg, field) \
31( \
32 _F_NORMALIZE((x), reg ## _ ## field) \
33)
34
35#define FIELD_SET(x, reg, field, value) \
36( \
37 (x & ~_F_MASK(reg ## _ ## field)) \
38 | _F_DENORMALIZE(reg ## _ ## field ## _ ## value, reg ## _ ## field) \
39)
40
41#define FIELD_VALUE(x, reg, field, value) \
42( \
43 (x & ~_F_MASK(reg ## _ ## field)) \
44 | _F_DENORMALIZE(value, reg ## _ ## field) \
45)
46
47#define FIELD_CLEAR(reg, field) \
48( \
49 ~_F_MASK(reg ## _ ## field) \
50)
51
52/* Field Macros */
53
54#define FIELD_START(field) (0 ? field)
55#define FIELD_END(field) (1 ? field)
56#define FIELD_SIZE(field) \
57 (1 + FIELD_END(field) - FIELD_START(field))
58
59#define FIELD_MASK(field) \
60 (((1 << (FIELD_SIZE(field)-1)) \
61 | ((1 << (FIELD_SIZE(field)-1)) - 1)) \
62 << FIELD_START(field))
63
64#define FIELD_NORMALIZE(reg, field) \
65 (((reg) & FIELD_MASK(field)) >> FIELD_START(field))
66
67#define FIELD_DENORMALIZE(field, value) \
68 (((value) << FIELD_START(field)) & FIELD_MASK(field))
69
70#define FIELD_INIT(reg, field, value) \
71 FIELD_DENORMALIZE(reg ## _ ## field, \
72 reg ## _ ## field ## _ ## value)
73
74#define FIELD_INIT_VAL(reg, field, value) \
75 (FIELD_DENORMALIZE(reg ## _ ## field, value))
76
77#define FIELD_VAL_SET(x, r, f, v) ({ \
78 x = (x & ~FIELD_MASK(r ## _ ## f)) \
79 | FIELD_DENORMALIZE(r ## _ ## f, r ## _ ## f ## _ ## v) \
80})
81
82#define RGB(r, g, b) ((unsigned long)(((r) << 16) | ((g) << 8) | (b)))
83
84/* Transparent info definition */
85typedef struct {
86 unsigned long match; /* Matching pixel is OPAQUE/TRANSPARENT */
87 unsigned long select; /* Transparency controlled by SRC/DST */
88 unsigned long control; /* ENABLE/DISABLE transparency */
89 unsigned long color; /* Transparent color */
90} Transparent, *pTransparent;
91
92#define PIXEL_DEPTH_1_BP 0 /* 1 bit per pixel */
93#define PIXEL_DEPTH_8_BPP 1 /* 8 bits per pixel */
94#define PIXEL_DEPTH_16_BPP 2 /* 16 bits per pixel */
95#define PIXEL_DEPTH_32_BPP 3 /* 32 bits per pixel */
96#define PIXEL_DEPTH_YUV422 8 /* 16 bits per pixel YUV422 */
97#define PIXEL_DEPTH_YUV420 9 /* 16 bits per pixel YUV420 */
98
99#define PATTERN_WIDTH 8
100#define PATTERN_HEIGHT 8
101
102#define TOP_TO_BOTTOM 0
103#define BOTTOM_TO_TOP 1
104#define RIGHT_TO_LEFT BOTTOM_TO_TOP
105#define LEFT_TO_RIGHT TOP_TO_BOTTOM
106
107/* Constants used in Transparent structure */
108#define MATCH_OPAQUE 0x00000000
109#define MATCH_TRANSPARENT 0x00000400
110#define SOURCE 0x00000000
111#define DESTINATION 0x00000200
112
113/* 2D registers. */
114
115#define DE_SOURCE 0x000000
116#define DE_SOURCE_WRAP 31 : 31
117#define DE_SOURCE_WRAP_DISABLE 0
118#define DE_SOURCE_WRAP_ENABLE 1
119#define DE_SOURCE_X_K1 29 : 16
120#define DE_SOURCE_Y_K2 15 : 0
121
122#define DE_DESTINATION 0x000004
123#define DE_DESTINATION_WRAP 31 : 31
124#define DE_DESTINATION_WRAP_DISABLE 0
125#define DE_DESTINATION_WRAP_ENABLE 1
126#define DE_DESTINATION_X 28 : 16
127#define DE_DESTINATION_Y 15 : 0
128
129#define DE_DIMENSION 0x000008
130#define DE_DIMENSION_X 28 : 16
131#define DE_DIMENSION_Y_ET 15 : 0
132
133#define DE_CONTROL 0x00000C
134#define DE_CONTROL_STATUS 31 : 31
135#define DE_CONTROL_STATUS_STOP 0
136#define DE_CONTROL_STATUS_START 1
137#define DE_CONTROL_PATTERN 30 : 30
138#define DE_CONTROL_PATTERN_MONO 0
139#define DE_CONTROL_PATTERN_COLOR 1
140#define DE_CONTROL_UPDATE_DESTINATION_X 29 : 29
141#define DE_CONTROL_UPDATE_DESTINATION_X_DISABLE 0
142#define DE_CONTROL_UPDATE_DESTINATION_X_ENABLE 1
143#define DE_CONTROL_QUICK_START 28 : 28
144#define DE_CONTROL_QUICK_START_DISABLE 0
145#define DE_CONTROL_QUICK_START_ENABLE 1
146#define DE_CONTROL_DIRECTION 27 : 27
147#define DE_CONTROL_DIRECTION_LEFT_TO_RIGHT 0
148#define DE_CONTROL_DIRECTION_RIGHT_TO_LEFT 1
149#define DE_CONTROL_MAJOR 26 : 26
150#define DE_CONTROL_MAJOR_X 0
151#define DE_CONTROL_MAJOR_Y 1
152#define DE_CONTROL_STEP_X 25 : 25
153#define DE_CONTROL_STEP_X_POSITIVE 1
154#define DE_CONTROL_STEP_X_NEGATIVE 0
155#define DE_CONTROL_STEP_Y 24 : 24
156#define DE_CONTROL_STEP_Y_POSITIVE 1
157#define DE_CONTROL_STEP_Y_NEGATIVE 0
158#define DE_CONTROL_STRETCH 23 : 23
159#define DE_CONTROL_STRETCH_DISABLE 0
160#define DE_CONTROL_STRETCH_ENABLE 1
161#define DE_CONTROL_HOST 22 : 22
162#define DE_CONTROL_HOST_COLOR 0
163#define DE_CONTROL_HOST_MONO 1
164#define DE_CONTROL_LAST_PIXEL 21 : 21
165#define DE_CONTROL_LAST_PIXEL_OFF 0
166#define DE_CONTROL_LAST_PIXEL_ON 1
167#define DE_CONTROL_COMMAND 20 : 16
168#define DE_CONTROL_COMMAND_BITBLT 0
169#define DE_CONTROL_COMMAND_RECTANGLE_FILL 1
170#define DE_CONTROL_COMMAND_DE_TILE 2
171#define DE_CONTROL_COMMAND_TRAPEZOID_FILL 3
172#define DE_CONTROL_COMMAND_ALPHA_BLEND 4
173#define DE_CONTROL_COMMAND_RLE_STRIP 5
174#define DE_CONTROL_COMMAND_SHORT_STROKE 6
175#define DE_CONTROL_COMMAND_LINE_DRAW 7
176#define DE_CONTROL_COMMAND_HOST_WRITE 8
177#define DE_CONTROL_COMMAND_HOST_READ 9
178#define DE_CONTROL_COMMAND_HOST_WRITE_BOTTOM_UP 10
179#define DE_CONTROL_COMMAND_ROTATE 11
180#define DE_CONTROL_COMMAND_FONT 12
181#define DE_CONTROL_COMMAND_TEXTURE_LOAD 15
182#define DE_CONTROL_ROP_SELECT 15 : 15
183#define DE_CONTROL_ROP_SELECT_ROP3 0
184#define DE_CONTROL_ROP_SELECT_ROP2 1
185#define DE_CONTROL_ROP2_SOURCE 14 : 14
186#define DE_CONTROL_ROP2_SOURCE_BITMAP 0
187#define DE_CONTROL_ROP2_SOURCE_PATTERN 1
188#define DE_CONTROL_MONO_DATA 13 : 12
189#define DE_CONTROL_MONO_DATA_NOT_PACKED 0
190#define DE_CONTROL_MONO_DATA_8_PACKED 1
191#define DE_CONTROL_MONO_DATA_16_PACKED 2
192#define DE_CONTROL_MONO_DATA_32_PACKED 3
193#define DE_CONTROL_REPEAT_ROTATE 11 : 11
194#define DE_CONTROL_REPEAT_ROTATE_DISABLE 0
195#define DE_CONTROL_REPEAT_ROTATE_ENABLE 1
196#define DE_CONTROL_TRANSPARENCY_MATCH 10 : 10
197#define DE_CONTROL_TRANSPARENCY_MATCH_OPAQUE 0
198#define DE_CONTROL_TRANSPARENCY_MATCH_TRANSPARENT 1
199#define DE_CONTROL_TRANSPARENCY_SELECT 9 : 9
200#define DE_CONTROL_TRANSPARENCY_SELECT_SOURCE 0
201#define DE_CONTROL_TRANSPARENCY_SELECT_DESTINATION 1
202#define DE_CONTROL_TRANSPARENCY 8 : 8
203#define DE_CONTROL_TRANSPARENCY_DISABLE 0
204#define DE_CONTROL_TRANSPARENCY_ENABLE 1
205#define DE_CONTROL_ROP 7 : 0
206
207/* Pseudo fields. */
208
209#define DE_CONTROL_SHORT_STROKE_DIR 27 : 24
210#define DE_CONTROL_SHORT_STROKE_DIR_225 0
211#define DE_CONTROL_SHORT_STROKE_DIR_135 1
212#define DE_CONTROL_SHORT_STROKE_DIR_315 2
213#define DE_CONTROL_SHORT_STROKE_DIR_45 3
214#define DE_CONTROL_SHORT_STROKE_DIR_270 4
215#define DE_CONTROL_SHORT_STROKE_DIR_90 5
216#define DE_CONTROL_SHORT_STROKE_DIR_180 8
217#define DE_CONTROL_SHORT_STROKE_DIR_0 10
218#define DE_CONTROL_ROTATION 25 : 24
219#define DE_CONTROL_ROTATION_0 0
220#define DE_CONTROL_ROTATION_270 1
221#define DE_CONTROL_ROTATION_90 2
222#define DE_CONTROL_ROTATION_180 3
223
224#define DE_PITCH 0x000010
225#define DE_PITCH_DESTINATION 28 : 16
226#define DE_PITCH_SOURCE 12 : 0
227
228#define DE_FOREGROUND 0x000014
229#define DE_FOREGROUND_COLOR 31 : 0
230
231#define DE_BACKGROUND 0x000018
232#define DE_BACKGROUND_COLOR 31 : 0
233
234#define DE_STRETCH_FORMAT 0x00001C
235#define DE_STRETCH_FORMAT_PATTERN_XY 30 : 30
236#define DE_STRETCH_FORMAT_PATTERN_XY_NORMAL 0
237#define DE_STRETCH_FORMAT_PATTERN_XY_OVERWRITE 1
238#define DE_STRETCH_FORMAT_PATTERN_Y 29 : 27
239#define DE_STRETCH_FORMAT_PATTERN_X 25 : 23
240#define DE_STRETCH_FORMAT_PIXEL_FORMAT 21 : 20
241#define DE_STRETCH_FORMAT_PIXEL_FORMAT_8 0
242#define DE_STRETCH_FORMAT_PIXEL_FORMAT_16 1
243#define DE_STRETCH_FORMAT_PIXEL_FORMAT_24 3
244#define DE_STRETCH_FORMAT_PIXEL_FORMAT_32 2
245#define DE_STRETCH_FORMAT_ADDRESSING 19 : 16
246#define DE_STRETCH_FORMAT_ADDRESSING_XY 0
247#define DE_STRETCH_FORMAT_ADDRESSING_LINEAR 15
248#define DE_STRETCH_FORMAT_SOURCE_HEIGHT 11 : 0
249
250#define DE_COLOR_COMPARE 0x000020
251#define DE_COLOR_COMPARE_COLOR 23 : 0
252
253#define DE_COLOR_COMPARE_MASK 0x000024
254#define DE_COLOR_COMPARE_MASK_MASKS 23 : 0
255
256#define DE_MASKS 0x000028
257#define DE_MASKS_BYTE_MASK 31 : 16
258#define DE_MASKS_BIT_MASK 15 : 0
259
260#define DE_CLIP_TL 0x00002C
261#define DE_CLIP_TL_TOP 31 : 16
262#define DE_CLIP_TL_STATUS 13 : 13
263#define DE_CLIP_TL_STATUS_DISABLE 0
264#define DE_CLIP_TL_STATUS_ENABLE 1
265#define DE_CLIP_TL_INHIBIT 12 : 12
266#define DE_CLIP_TL_INHIBIT_OUTSIDE 0
267#define DE_CLIP_TL_INHIBIT_INSIDE 1
268#define DE_CLIP_TL_LEFT 11 : 0
269
270#define DE_CLIP_BR 0x000030
271#define DE_CLIP_BR_BOTTOM 31 : 16
272#define DE_CLIP_BR_RIGHT 12 : 0
273
274#define DE_MONO_PATTERN_LOW 0x000034
275#define DE_MONO_PATTERN_LOW_PATTERN 31 : 0
276
277#define DE_MONO_PATTERN_HIGH 0x000038
278#define DE_MONO_PATTERN_HIGH_PATTERN 31 : 0
279
280#define DE_WINDOW_WIDTH 0x00003C
281#define DE_WINDOW_WIDTH_DESTINATION 28 : 16
282#define DE_WINDOW_WIDTH_SOURCE 12 : 0
283
284#define DE_WINDOW_SOURCE_BASE 0x000040
285#define DE_WINDOW_SOURCE_BASE_EXT 27 : 27
286#define DE_WINDOW_SOURCE_BASE_EXT_LOCAL 0
287#define DE_WINDOW_SOURCE_BASE_EXT_EXTERNAL 1
288#define DE_WINDOW_SOURCE_BASE_CS 26 : 26
289#define DE_WINDOW_SOURCE_BASE_CS_0 0
290#define DE_WINDOW_SOURCE_BASE_CS_1 1
291#define DE_WINDOW_SOURCE_BASE_ADDRESS 25 : 0
292
293#define DE_WINDOW_DESTINATION_BASE 0x000044
294#define DE_WINDOW_DESTINATION_BASE_EXT 27 : 27
295#define DE_WINDOW_DESTINATION_BASE_EXT_LOCAL 0
296#define DE_WINDOW_DESTINATION_BASE_EXT_EXTERNAL 1
297#define DE_WINDOW_DESTINATION_BASE_CS 26 : 26
298#define DE_WINDOW_DESTINATION_BASE_CS_0 0
299#define DE_WINDOW_DESTINATION_BASE_CS_1 1
300#define DE_WINDOW_DESTINATION_BASE_ADDRESS 25 : 0
301
302#define DE_ALPHA 0x000048
303#define DE_ALPHA_VALUE 7 : 0
304
305#define DE_WRAP 0x00004C
306#define DE_WRAP_X 31 : 16
307#define DE_WRAP_Y 15 : 0
308
309#define DE_STATUS 0x000050
310#define DE_STATUS_CSC 1 : 1
311#define DE_STATUS_CSC_CLEAR 0
312#define DE_STATUS_CSC_NOT_ACTIVE 0
313#define DE_STATUS_CSC_ACTIVE 1
314#define DE_STATUS_2D 0 : 0
315#define DE_STATUS_2D_CLEAR 0
316#define DE_STATUS_2D_NOT_ACTIVE 0
317#define DE_STATUS_2D_ACTIVE 1
318
319/* Color Space Conversion registers. */
320
321#define CSC_Y_SOURCE_BASE 0x0000C8
322#define CSC_Y_SOURCE_BASE_EXT 27 : 27
323#define CSC_Y_SOURCE_BASE_EXT_LOCAL 0
324#define CSC_Y_SOURCE_BASE_EXT_EXTERNAL 1
325#define CSC_Y_SOURCE_BASE_CS 26 : 26
326#define CSC_Y_SOURCE_BASE_CS_0 0
327#define CSC_Y_SOURCE_BASE_CS_1 1
328#define CSC_Y_SOURCE_BASE_ADDRESS 25 : 0
329
330#define CSC_CONSTANTS 0x0000CC
331#define CSC_CONSTANTS_Y 31 : 24
332#define CSC_CONSTANTS_R 23 : 16
333#define CSC_CONSTANTS_G 15 : 8
334#define CSC_CONSTANTS_B 7 : 0
335
336#define CSC_Y_SOURCE_X 0x0000D0
337#define CSC_Y_SOURCE_X_INTEGER 26 : 16
338#define CSC_Y_SOURCE_X_FRACTION 15 : 3
339
340#define CSC_Y_SOURCE_Y 0x0000D4
341#define CSC_Y_SOURCE_Y_INTEGER 27 : 16
342#define CSC_Y_SOURCE_Y_FRACTION 15 : 3
343
344#define CSC_U_SOURCE_BASE 0x0000D8
345#define CSC_U_SOURCE_BASE_EXT 27 : 27
346#define CSC_U_SOURCE_BASE_EXT_LOCAL 0
347#define CSC_U_SOURCE_BASE_EXT_EXTERNAL 1
348#define CSC_U_SOURCE_BASE_CS 26 : 26
349#define CSC_U_SOURCE_BASE_CS_0 0
350#define CSC_U_SOURCE_BASE_CS_1 1
351#define CSC_U_SOURCE_BASE_ADDRESS 25 : 0
352
353#define CSC_V_SOURCE_BASE 0x0000DC
354#define CSC_V_SOURCE_BASE_EXT 27 : 27
355#define CSC_V_SOURCE_BASE_EXT_LOCAL 0
356#define CSC_V_SOURCE_BASE_EXT_EXTERNAL 1
357#define CSC_V_SOURCE_BASE_CS 26 : 26
358#define CSC_V_SOURCE_BASE_CS_0 0
359#define CSC_V_SOURCE_BASE_CS_1 1
360#define CSC_V_SOURCE_BASE_ADDRESS 25 : 0
361
362#define CSC_SOURCE_DIMENSION 0x0000E0
363#define CSC_SOURCE_DIMENSION_X 31 : 16
364#define CSC_SOURCE_DIMENSION_Y 15 : 0
365
366#define CSC_SOURCE_PITCH 0x0000E4
367#define CSC_SOURCE_PITCH_Y 31 : 16
368#define CSC_SOURCE_PITCH_UV 15 : 0
369
370#define CSC_DESTINATION 0x0000E8
371#define CSC_DESTINATION_WRAP 31 : 31
372#define CSC_DESTINATION_WRAP_DISABLE 0
373#define CSC_DESTINATION_WRAP_ENABLE 1
374#define CSC_DESTINATION_X 27 : 16
375#define CSC_DESTINATION_Y 11 : 0
376
377#define CSC_DESTINATION_DIMENSION 0x0000EC
378#define CSC_DESTINATION_DIMENSION_X 31 : 16
379#define CSC_DESTINATION_DIMENSION_Y 15 : 0
380
381#define CSC_DESTINATION_PITCH 0x0000F0
382#define CSC_DESTINATION_PITCH_X 31 : 16
383#define CSC_DESTINATION_PITCH_Y 15 : 0
384
385#define CSC_SCALE_FACTOR 0x0000F4
386#define CSC_SCALE_FACTOR_HORIZONTAL 31 : 16
387#define CSC_SCALE_FACTOR_VERTICAL 15 : 0
388
389#define CSC_DESTINATION_BASE 0x0000F8
390#define CSC_DESTINATION_BASE_EXT 27 : 27
391#define CSC_DESTINATION_BASE_EXT_LOCAL 0
392#define CSC_DESTINATION_BASE_EXT_EXTERNAL 1
393#define CSC_DESTINATION_BASE_CS 26 : 26
394#define CSC_DESTINATION_BASE_CS_0 0
395#define CSC_DESTINATION_BASE_CS_1 1
396#define CSC_DESTINATION_BASE_ADDRESS 25 : 0
397
398#define CSC_CONTROL 0x0000FC
399#define CSC_CONTROL_STATUS 31 : 31
400#define CSC_CONTROL_STATUS_STOP 0
401#define CSC_CONTROL_STATUS_START 1
402#define CSC_CONTROL_SOURCE_FORMAT 30 : 28
403#define CSC_CONTROL_SOURCE_FORMAT_YUV422 0
404#define CSC_CONTROL_SOURCE_FORMAT_YUV420I 1
405#define CSC_CONTROL_SOURCE_FORMAT_YUV420 2
406#define CSC_CONTROL_SOURCE_FORMAT_YVU9 3
407#define CSC_CONTROL_SOURCE_FORMAT_IYU1 4
408#define CSC_CONTROL_SOURCE_FORMAT_IYU2 5
409#define CSC_CONTROL_SOURCE_FORMAT_RGB565 6
410#define CSC_CONTROL_SOURCE_FORMAT_RGB8888 7
411#define CSC_CONTROL_DESTINATION_FORMAT 27 : 26
412#define CSC_CONTROL_DESTINATION_FORMAT_RGB565 0
413#define CSC_CONTROL_DESTINATION_FORMAT_RGB8888 1
414#define CSC_CONTROL_HORIZONTAL_FILTER 25 : 25
415#define CSC_CONTROL_HORIZONTAL_FILTER_DISABLE 0
416#define CSC_CONTROL_HORIZONTAL_FILTER_ENABLE 1
417#define CSC_CONTROL_VERTICAL_FILTER 24 : 24
418#define CSC_CONTROL_VERTICAL_FILTER_DISABLE 0
419#define CSC_CONTROL_VERTICAL_FILTER_ENABLE 1
420#define CSC_CONTROL_BYTE_ORDER 23 : 23
421#define CSC_CONTROL_BYTE_ORDER_YUYV 0
422#define CSC_CONTROL_BYTE_ORDER_UYVY 1
423
424#define DE_DATA_PORT_501 0x110000
425#define DE_DATA_PORT_712 0x400000
426#define DE_DATA_PORT_722 0x6000
427
428/* point to virtual Memory Map IO starting address */
429extern char *smtc_RegBaseAddress;
430/* point to virtual video memory starting address */
431extern char *smtc_VRAMBaseAddress;
432extern unsigned char smtc_de_busy;
433
434extern unsigned long memRead32(unsigned long nOffset);
435extern void memWrite32(unsigned long nOffset, unsigned long nData);
436extern unsigned long SMTC_read2Dreg(unsigned long nOffset);
437
438/* 2D functions */
439extern void deInit(unsigned int nModeWidth, unsigned int nModeHeight,
440 unsigned int bpp);
441
442extern void deWaitForNotBusy(void);
443
444extern void deVerticalLine(unsigned long dst_base,
445 unsigned long dst_pitch,
446 unsigned long nX,
447 unsigned long nY,
448 unsigned long dst_height,
449 unsigned long nColor);
450
451extern void deHorizontalLine(unsigned long dst_base,
452 unsigned long dst_pitch,
453 unsigned long nX,
454 unsigned long nY,
455 unsigned long dst_width,
456 unsigned long nColor);
457
458extern void deLine(unsigned long dst_base,
459 unsigned long dst_pitch,
460 unsigned long nX1,
461 unsigned long nY1,
462 unsigned long nX2,
463 unsigned long nY2,
464 unsigned long nColor);
465
466extern void deFillRect(unsigned long dst_base,
467 unsigned long dst_pitch,
468 unsigned long dst_X,
469 unsigned long dst_Y,
470 unsigned long dst_width,
471 unsigned long dst_height,
472 unsigned long nColor);
473
474extern void deRotatePattern(unsigned char *pattern_dstaddr,
475 unsigned long pattern_src_addr,
476 unsigned long pattern_BPP,
477 unsigned long pattern_stride,
478 int patternX,
479 int patternY);
480
481extern void deCopy(unsigned long dst_base,
482 unsigned long dst_pitch,
483 unsigned long dst_BPP,
484 unsigned long dst_X,
485 unsigned long dst_Y,
486 unsigned long dst_width,
487 unsigned long dst_height,
488 unsigned long src_base,
489 unsigned long src_pitch,
490 unsigned long src_X,
491 unsigned long src_Y,
492 pTransparent pTransp,
493 unsigned char nROP2);
494
495/*
496 * System memory to Video memory monochrome expansion.
497 *
498 * Source is monochrome image in system memory. This function expands the
499 * monochrome data to color image in video memory.
500 *
501 * @pSrcbuf: pointer to start of source buffer in system memory
502 * @srcDelta: Pitch value (in bytes) of the source buffer, +ive means top
503 * down and -ive mean button up
504 * @startBit: Mono data can start at any bit in a byte, this value should
505 * be 0 to 7
506 * @dBase: Address of destination : offset in frame buffer
507 * @dPitch: Pitch value of destination surface in BYTE
508 * @bpp: Color depth of destination surface
509 * @dx, dy: Starting coordinate of destination surface
510 * @width, height: width and height of rectange in pixel value
511 * @fColor,bColor: Foreground, Background color (corresponding to a 1, 0 in
512 * the monochrome data)
513 * @rop2: ROP value
514 */
515
516extern long deSystemMem2VideoMemMonoBlt(
517 const char *pSrcbuf,
518 long srcDelta,
519 unsigned long startBit,
520 unsigned long dBase,
521 unsigned long dPitch,
522 unsigned long bpp,
523 unsigned long dx, unsigned long dy,
524 unsigned long width, unsigned long height,
525 unsigned long fColor,
526 unsigned long bColor,
527 unsigned long rop2);
528
529extern unsigned long deGetTransparency(void);
530extern void deSetPixelFormat(unsigned long bpp);
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
new file mode 100644
index 000000000000..161dbc9c1397
--- /dev/null
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -0,0 +1,1253 @@
1/*
2 * Silicon Motion SM7XX frame buffer device
3 *
4 * Copyright (C) 2006 Silicon Motion Technology Corp.
5 * Authors: Ge Wang, gewang@siliconmotion.com
6 * Boyod boyod.yang@siliconmotion.com.cn
7 *
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Wu Zhangjin, wuzj@lemote.com
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file COPYING in the main directory of this archive for
13 * more details.
14 *
15 * Version 0.10.26192.21.01
16 * - Add PowerPC/Big endian support
17 * - Add 2D support for Lynx
18 * - Verified on2.6.19.2 Boyod.yang <boyod.yang@siliconmotion.com.cn>
19 *
20 * Version 0.09.2621.00.01
21 * - Only support Linux Kernel's version 2.6.21.
22 * Boyod.yang <boyod.yang@siliconmotion.com.cn>
23 *
24 * Version 0.09
25 * - Only support Linux Kernel's version 2.6.12.
26 * Boyod.yang <boyod.yang@siliconmotion.com.cn>
27 */
28
29#ifndef __KERNEL__
30#define __KERNEL__
31#endif
32
33#include <linux/io.h>
34#include <linux/fb.h>
35#include <linux/pci.h>
36#include <linux/init.h>
37#include <linux/uaccess.h>
38#include <linux/console.h>
39#include <linux/screen_info.h>
40
41#ifdef CONFIG_PM
42#include <linux/pm.h>
43#endif
44
45struct screen_info smtc_screen_info;
46
47#include "smtcfb.h"
48#include "smtc2d.h"
49
50#ifdef DEBUG
51#define smdbg(format, arg...) printk(KERN_DEBUG format , ## arg)
52#else
53#define smdbg(format, arg...)
54#endif
55
56/*
57* Private structure
58*/
59struct smtcfb_info {
60 /*
61 * The following is a pointer to be passed into the
62 * functions below. The modules outside the main
63 * voyager.c driver have no knowledge as to what
64 * is within this structure.
65 */
66 struct fb_info fb;
67 struct display_switch *dispsw;
68 struct pci_dev *dev;
69 signed int currcon;
70
71 struct {
72 u8 red, green, blue;
73 } palette[NR_RGB];
74
75 u_int palette_size;
76};
77
78struct par_info {
79 /*
80 * Hardware
81 */
82 u16 chipID;
83 unsigned char __iomem *m_pMMIO;
84 char __iomem *m_pLFB;
85 char *m_pDPR;
86 char *m_pVPR;
87 char *m_pCPR;
88
89 u_int width;
90 u_int height;
91 u_int hz;
92 u_long BaseAddressInVRAM;
93 u8 chipRevID;
94};
95
96struct vesa_mode_table {
97 char mode_index[6];
98 u16 lfb_width;
99 u16 lfb_height;
100 u16 lfb_depth;
101};
102
103static struct vesa_mode_table vesa_mode[] = {
104 {"0x301", 640, 480, 8},
105 {"0x303", 800, 600, 8},
106 {"0x305", 1024, 768, 8},
107 {"0x307", 1280, 1024, 8},
108
109 {"0x311", 640, 480, 16},
110 {"0x314", 800, 600, 16},
111 {"0x317", 1024, 768, 16},
112 {"0x31A", 1280, 1024, 16},
113
114 {"0x312", 640, 480, 24},
115 {"0x315", 800, 600, 24},
116 {"0x318", 1024, 768, 24},
117 {"0x31B", 1280, 1024, 24},
118};
119
120char __iomem *smtc_RegBaseAddress; /* Memory Map IO starting address */
121char __iomem *smtc_VRAMBaseAddress; /* video memory starting address */
122
123char *smtc_2DBaseAddress; /* 2D engine starting address */
124char *smtc_2Ddataport; /* 2D data port offset */
125short smtc_2Dacceleration;
126
127static u32 colreg[17];
128static struct par_info hw; /* hardware information */
129
130u16 smtc_ChipIDs[] = {
131 0x710,
132 0x712,
133 0x720
134};
135
136#define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
137
138void deWaitForNotBusy(void)
139{
140 unsigned long i = 0x1000000;
141 while (i--) {
142 if ((smtc_seqr(0x16) & 0x18) == 0x10)
143 break;
144 }
145 smtc_de_busy = 0;
146}
147
148static void sm712_set_timing(struct smtcfb_info *sfb,
149 struct par_info *ppar_info)
150{
151 int i = 0, j = 0;
152 u32 m_nScreenStride;
153
154 smdbg("\nppar_info->width = %d ppar_info->height = %d"
155 "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
156 ppar_info->width, ppar_info->height,
157 sfb->fb.var.bits_per_pixel, ppar_info->hz);
158
159 for (j = 0; j < numVGAModes; j++) {
160 if (VGAMode[j].mmSizeX == ppar_info->width &&
161 VGAMode[j].mmSizeY == ppar_info->height &&
162 VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
163 VGAMode[j].hz == ppar_info->hz) {
164
165 smdbg("\nVGAMode[j].mmSizeX = %d VGAMode[j].mmSizeY ="
166 "%d VGAMode[j].bpp = %d"
167 "VGAMode[j].hz=%d\n",
168 VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
169 VGAMode[j].bpp, VGAMode[j].hz);
170
171 smdbg("VGAMode index=%d\n", j);
172
173 smtc_mmiowb(0x0, 0x3c6);
174
175 smtc_seqw(0, 0x1);
176
177 smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
178
179 /* init SEQ register SR00 - SR04 */
180 for (i = 0; i < SIZE_SR00_SR04; i++)
181 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
182
183 /* init SEQ register SR10 - SR24 */
184 for (i = 0; i < SIZE_SR10_SR24; i++)
185 smtc_seqw(i + 0x10,
186 VGAMode[j].Init_SR10_SR24[i]);
187
188 /* init SEQ register SR30 - SR75 */
189 for (i = 0; i < SIZE_SR30_SR75; i++)
190 if (((i + 0x30) != 0x62) \
191 && ((i + 0x30) != 0x6a) \
192 && ((i + 0x30) != 0x6b))
193 smtc_seqw(i + 0x30,
194 VGAMode[j].Init_SR30_SR75[i]);
195
196 /* init SEQ register SR80 - SR93 */
197 for (i = 0; i < SIZE_SR80_SR93; i++)
198 smtc_seqw(i + 0x80,
199 VGAMode[j].Init_SR80_SR93[i]);
200
201 /* init SEQ register SRA0 - SRAF */
202 for (i = 0; i < SIZE_SRA0_SRAF; i++)
203 smtc_seqw(i + 0xa0,
204 VGAMode[j].Init_SRA0_SRAF[i]);
205
206 /* init Graphic register GR00 - GR08 */
207 for (i = 0; i < SIZE_GR00_GR08; i++)
208 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
209
210 /* init Attribute register AR00 - AR14 */
211 for (i = 0; i < SIZE_AR00_AR14; i++)
212 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
213
214 /* init CRTC register CR00 - CR18 */
215 for (i = 0; i < SIZE_CR00_CR18; i++)
216 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
217
218 /* init CRTC register CR30 - CR4D */
219 for (i = 0; i < SIZE_CR30_CR4D; i++)
220 smtc_crtcw(i + 0x30,
221 VGAMode[j].Init_CR30_CR4D[i]);
222
223 /* init CRTC register CR90 - CRA7 */
224 for (i = 0; i < SIZE_CR90_CRA7; i++)
225 smtc_crtcw(i + 0x90,
226 VGAMode[j].Init_CR90_CRA7[i]);
227 }
228 }
229 smtc_mmiowb(0x67, 0x3c2);
230
231 /* set VPR registers */
232 writel(0x0, ppar_info->m_pVPR + 0x0C);
233 writel(0x0, ppar_info->m_pVPR + 0x40);
234
235 /* set data width */
236 m_nScreenStride =
237 (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
238 switch (sfb->fb.var.bits_per_pixel) {
239 case 8:
240 writel(0x0, ppar_info->m_pVPR + 0x0);
241 break;
242 case 16:
243 writel(0x00020000, ppar_info->m_pVPR + 0x0);
244 break;
245 case 24:
246 writel(0x00040000, ppar_info->m_pVPR + 0x0);
247 break;
248 case 32:
249 writel(0x00030000, ppar_info->m_pVPR + 0x0);
250 break;
251 }
252 writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
253 ppar_info->m_pVPR + 0x10);
254
255}
256
257static void sm712_setpalette(int regno, unsigned red, unsigned green,
258 unsigned blue, struct fb_info *info)
259{
260 struct par_info *cur_par = (struct par_info *)info->par;
261
262 if (cur_par->BaseAddressInVRAM)
263 /*
264 * second display palette for dual head. Enable CRT RAM, 6-bit
265 * RAM
266 */
267 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
268 else
269 /* primary display palette. Enable LCD RAM only, 6-bit RAM */
270 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
271 smtc_mmiowb(regno, dac_reg);
272 smtc_mmiowb(red >> 10, dac_val);
273 smtc_mmiowb(green >> 10, dac_val);
274 smtc_mmiowb(blue >> 10, dac_val);
275}
276
277static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
278 *ppar_info)
279{
280 switch (ppar_info->chipID) {
281 case 0x710:
282 case 0x712:
283 case 0x720:
284 sm712_set_timing(sfb, ppar_info);
285 break;
286 }
287}
288
289static struct fb_var_screeninfo smtcfb_var = {
290 .xres = 1024,
291 .yres = 600,
292 .xres_virtual = 1024,
293 .yres_virtual = 600,
294 .bits_per_pixel = 16,
295 .red = {16, 8, 0},
296 .green = {8, 8, 0},
297 .blue = {0, 8, 0},
298 .activate = FB_ACTIVATE_NOW,
299 .height = -1,
300 .width = -1,
301 .vmode = FB_VMODE_NONINTERLACED,
302};
303
304static struct fb_fix_screeninfo smtcfb_fix = {
305 .id = "sm712fb",
306 .type = FB_TYPE_PACKED_PIXELS,
307 .visual = FB_VISUAL_TRUECOLOR,
308 .line_length = 800 * 3,
309 .accel = FB_ACCEL_SMI_LYNX,
310};
311
312/* chan_to_field
313 *
314 * convert a colour value into a field position
315 *
316 * from pxafb.c
317 */
318
319static inline unsigned int chan_to_field(unsigned int chan,
320 struct fb_bitfield *bf)
321{
322 chan &= 0xffff;
323 chan >>= 16 - bf->length;
324 return chan << bf->offset;
325}
326
327static int smtcfb_blank(int blank_mode, struct fb_info *info)
328{
329 /* clear DPMS setting */
330 switch (blank_mode) {
331 case FB_BLANK_UNBLANK:
332 /* Screen On: HSync: On, VSync : On */
333 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
334 smtc_seqw(0x6a, 0x16);
335 smtc_seqw(0x6b, 0x02);
336 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
337 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
338 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
339 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
340 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
341 break;
342 case FB_BLANK_NORMAL:
343 /* Screen Off: HSync: On, VSync : On Soft blank */
344 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
345 smtc_seqw(0x6a, 0x16);
346 smtc_seqw(0x6b, 0x02);
347 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
348 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
349 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
350 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
351 break;
352 case FB_BLANK_VSYNC_SUSPEND:
353 /* Screen On: HSync: On, VSync : Off */
354 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
355 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
356 smtc_seqw(0x6a, 0x0c);
357 smtc_seqw(0x6b, 0x02);
358 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
359 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
360 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
361 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
362 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
363 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
364 break;
365 case FB_BLANK_HSYNC_SUSPEND:
366 /* Screen On: HSync: Off, VSync : On */
367 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
368 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
369 smtc_seqw(0x6a, 0x0c);
370 smtc_seqw(0x6b, 0x02);
371 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
372 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
373 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
374 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
375 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
376 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
377 break;
378 case FB_BLANK_POWERDOWN:
379 /* Screen On: HSync: Off, VSync : Off */
380 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
381 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
382 smtc_seqw(0x6a, 0x0c);
383 smtc_seqw(0x6b, 0x02);
384 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
385 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
386 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
387 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
388 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
389 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
390 break;
391 default:
392 return -EINVAL;
393 }
394
395 return 0;
396}
397
398static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
399 unsigned blue, unsigned trans, struct fb_info *info)
400{
401 struct smtcfb_info *sfb = (struct smtcfb_info *)info;
402 u32 val;
403
404 if (regno > 255)
405 return 1;
406
407 switch (sfb->fb.fix.visual) {
408 case FB_VISUAL_DIRECTCOLOR:
409 case FB_VISUAL_TRUECOLOR:
410 /*
411 * 16/32 bit true-colour, use pseuo-palette for 16 base color
412 */
413 if (regno < 16) {
414 if (sfb->fb.var.bits_per_pixel == 16) {
415 u32 *pal = sfb->fb.pseudo_palette;
416 val = chan_to_field(red, &sfb->fb.var.red);
417 val |= chan_to_field(green, \
418 &sfb->fb.var.green);
419 val |= chan_to_field(blue, &sfb->fb.var.blue);
420#ifdef __BIG_ENDIAN
421 pal[regno] =
422 ((red & 0xf800) >> 8) |
423 ((green & 0xe000) >> 13) |
424 ((green & 0x1c00) << 3) |
425 ((blue & 0xf800) >> 3);
426#else
427 pal[regno] = val;
428#endif
429 } else {
430 u32 *pal = sfb->fb.pseudo_palette;
431 val = chan_to_field(red, &sfb->fb.var.red);
432 val |= chan_to_field(green, \
433 &sfb->fb.var.green);
434 val |= chan_to_field(blue, &sfb->fb.var.blue);
435#ifdef __BIG_ENDIAN
436 val =
437 (val & 0xff00ff00 >> 8) |
438 (val & 0x00ff00ff << 8);
439#endif
440 pal[regno] = val;
441 }
442 }
443 break;
444
445 case FB_VISUAL_PSEUDOCOLOR:
446 /* color depth 8 bit */
447 sm712_setpalette(regno, red, green, blue, info);
448 break;
449
450 default:
451 return 1; /* unknown type */
452 }
453
454 return 0;
455
456}
457
458#ifdef __BIG_ENDIAN
459static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
460 count, loff_t *ppos)
461{
462 unsigned long p = *ppos;
463
464 u32 *buffer, *dst;
465 u32 __iomem *src;
466 int c, i, cnt = 0, err = 0;
467 unsigned long total_size;
468
469 if (!info || !info->screen_base)
470 return -ENODEV;
471
472 if (info->state != FBINFO_STATE_RUNNING)
473 return -EPERM;
474
475 total_size = info->screen_size;
476
477 if (total_size == 0)
478 total_size = info->fix.smem_len;
479
480 if (p >= total_size)
481 return 0;
482
483 if (count >= total_size)
484 count = total_size;
485
486 if (count + p > total_size)
487 count = total_size - p;
488
489 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
490 if (!buffer)
491 return -ENOMEM;
492
493 src = (u32 __iomem *) (info->screen_base + p);
494
495 if (info->fbops->fb_sync)
496 info->fbops->fb_sync(info);
497
498 while (count) {
499 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
500 dst = buffer;
501 for (i = c >> 2; i--;) {
502 *dst = fb_readl(src++);
503 *dst =
504 (*dst & 0xff00ff00 >> 8) |
505 (*dst & 0x00ff00ff << 8);
506 dst++;
507 }
508 if (c & 3) {
509 u8 *dst8 = (u8 *) dst;
510 u8 __iomem *src8 = (u8 __iomem *) src;
511
512 for (i = c & 3; i--;) {
513 if (i & 1) {
514 *dst8++ = fb_readb(++src8);
515 } else {
516 *dst8++ = fb_readb(--src8);
517 src8 += 2;
518 }
519 }
520 src = (u32 __iomem *) src8;
521 }
522
523 if (copy_to_user(buf, buffer, c)) {
524 err = -EFAULT;
525 break;
526 }
527 *ppos += c;
528 buf += c;
529 cnt += c;
530 count -= c;
531 }
532
533 kfree(buffer);
534
535 return (err) ? err : cnt;
536}
537
538static ssize_t
539smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
540 loff_t *ppos)
541{
542 unsigned long p = *ppos;
543
544 u32 *buffer, *src;
545 u32 __iomem *dst;
546 int c, i, cnt = 0, err = 0;
547 unsigned long total_size;
548
549 if (!info || !info->screen_base)
550 return -ENODEV;
551
552 if (info->state != FBINFO_STATE_RUNNING)
553 return -EPERM;
554
555 total_size = info->screen_size;
556
557 if (total_size == 0)
558 total_size = info->fix.smem_len;
559
560 if (p > total_size)
561 return -EFBIG;
562
563 if (count > total_size) {
564 err = -EFBIG;
565 count = total_size;
566 }
567
568 if (count + p > total_size) {
569 if (!err)
570 err = -ENOSPC;
571
572 count = total_size - p;
573 }
574
575 buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
576 if (!buffer)
577 return -ENOMEM;
578
579 dst = (u32 __iomem *) (info->screen_base + p);
580
581 if (info->fbops->fb_sync)
582 info->fbops->fb_sync(info);
583
584 while (count) {
585 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
586 src = buffer;
587
588 if (copy_from_user(src, buf, c)) {
589 err = -EFAULT;
590 break;
591 }
592
593 for (i = c >> 2; i--;) {
594 fb_writel((*src & 0xff00ff00 >> 8) |
595 (*src & 0x00ff00ff << 8), dst++);
596 src++;
597 }
598 if (c & 3) {
599 u8 *src8 = (u8 *) src;
600 u8 __iomem *dst8 = (u8 __iomem *) dst;
601
602 for (i = c & 3; i--;) {
603 if (i & 1) {
604 fb_writeb(*src8++, ++dst8);
605 } else {
606 fb_writeb(*src8++, --dst8);
607 dst8 += 2;
608 }
609 }
610 dst = (u32 __iomem *) dst8;
611 }
612
613 *ppos += c;
614 buf += c;
615 cnt += c;
616 count -= c;
617 }
618
619 kfree(buffer);
620
621 return (cnt) ? cnt : err;
622}
623#endif /* ! __BIG_ENDIAN */
624
625#include "smtc2d.c"
626
627void smtcfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
628{
629 struct par_info *p = (struct par_info *)info->par;
630
631 if (smtc_2Dacceleration) {
632 if (!area->width || !area->height)
633 return;
634
635 deCopy(p->BaseAddressInVRAM, 0, info->var.bits_per_pixel,
636 area->dx, area->dy, area->width, area->height,
637 p->BaseAddressInVRAM, 0, area->sx, area->sy, 0, 0xC);
638
639 } else
640 cfb_copyarea(info, area);
641}
642
643void smtcfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
644{
645 struct par_info *p = (struct par_info *)info->par;
646
647 if (smtc_2Dacceleration) {
648 if (!rect->width || !rect->height)
649 return;
650 if (info->var.bits_per_pixel >= 24)
651 deFillRect(p->BaseAddressInVRAM, 0, rect->dx * 3,
652 rect->dy * 3, rect->width * 3, rect->height,
653 rect->color);
654 else
655 deFillRect(p->BaseAddressInVRAM, 0, rect->dx, rect->dy,
656 rect->width, rect->height, rect->color);
657 } else
658 cfb_fillrect(info, rect);
659}
660
661void smtcfb_imageblit(struct fb_info *info, const struct fb_image *image)
662{
663 struct par_info *p = (struct par_info *)info->par;
664 u32 bg_col = 0, fg_col = 0;
665
666 if ((smtc_2Dacceleration) && (image->depth == 1)) {
667 if (smtc_de_busy)
668 deWaitForNotBusy();
669
670 switch (info->var.bits_per_pixel) {
671 case 8:
672 bg_col = image->bg_color;
673 fg_col = image->fg_color;
674 break;
675 case 16:
676 bg_col =
677 ((u32 *) (info->pseudo_palette))[image->bg_color];
678 fg_col =
679 ((u32 *) (info->pseudo_palette))[image->fg_color];
680 break;
681 case 32:
682 bg_col =
683 ((u32 *) (info->pseudo_palette))[image->bg_color];
684 fg_col =
685 ((u32 *) (info->pseudo_palette))[image->fg_color];
686 break;
687 }
688
689 deSystemMem2VideoMemMonoBlt(
690 image->data,
691 image->width / 8,
692 0,
693 p->BaseAddressInVRAM,
694 0,
695 0,
696 image->dx, image->dy,
697 image->width, image->height,
698 fg_col, bg_col,
699 0x0C);
700
701 } else
702 cfb_imageblit(info, image);
703}
704
705static struct fb_ops smtcfb_ops = {
706 .owner = THIS_MODULE,
707 .fb_setcolreg = smtc_setcolreg,
708 .fb_blank = smtcfb_blank,
709 .fb_fillrect = smtcfb_fillrect,
710 .fb_imageblit = smtcfb_imageblit,
711 .fb_copyarea = smtcfb_copyarea,
712#ifdef __BIG_ENDIAN
713 .fb_read = smtcfb_read,
714 .fb_write = smtcfb_write,
715#endif
716
717};
718
719void smtcfb_setmode(struct smtcfb_info *sfb)
720{
721 switch (sfb->fb.var.bits_per_pixel) {
722 case 32:
723 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
724 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
725 sfb->fb.var.red.length = 8;
726 sfb->fb.var.green.length = 8;
727 sfb->fb.var.blue.length = 8;
728 sfb->fb.var.red.offset = 16;
729 sfb->fb.var.green.offset = 8;
730 sfb->fb.var.blue.offset = 0;
731
732 break;
733 case 8:
734 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
735 sfb->fb.fix.line_length = sfb->fb.var.xres;
736 sfb->fb.var.red.offset = 5;
737 sfb->fb.var.red.length = 3;
738 sfb->fb.var.green.offset = 2;
739 sfb->fb.var.green.length = 3;
740 sfb->fb.var.blue.offset = 0;
741 sfb->fb.var.blue.length = 2;
742 break;
743 case 24:
744 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
745 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
746 sfb->fb.var.red.length = 8;
747 sfb->fb.var.green.length = 8;
748 sfb->fb.var.blue.length = 8;
749
750 sfb->fb.var.red.offset = 16;
751 sfb->fb.var.green.offset = 8;
752 sfb->fb.var.blue.offset = 0;
753
754 break;
755 case 16:
756 default:
757 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
758 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
759
760 sfb->fb.var.red.length = 5;
761 sfb->fb.var.green.length = 6;
762 sfb->fb.var.blue.length = 5;
763
764 sfb->fb.var.red.offset = 11;
765 sfb->fb.var.green.offset = 5;
766 sfb->fb.var.blue.offset = 0;
767
768 break;
769 }
770
771 hw.width = sfb->fb.var.xres;
772 hw.height = sfb->fb.var.yres;
773 hw.hz = 60;
774 smtc_set_timing(sfb, &hw);
775 if (smtc_2Dacceleration) {
776 printk("2D acceleration enabled!\n");
777 /* Init smtc drawing engine */
778 deInit(sfb->fb.var.xres, sfb->fb.var.yres,
779 sfb->fb.var.bits_per_pixel);
780 }
781}
782
783/*
784 * Alloc struct smtcfb_info and assign the default value
785 */
786static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
787 char *name)
788{
789 struct smtcfb_info *sfb;
790
791 sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
792
793 if (!sfb)
794 return NULL;
795
796 memset(sfb, 0, sizeof(struct smtcfb_info));
797
798 sfb->currcon = -1;
799 sfb->dev = dev;
800
801 /*** Init sfb->fb with default value ***/
802 sfb->fb.flags = FBINFO_FLAG_DEFAULT;
803 sfb->fb.fbops = &smtcfb_ops;
804 sfb->fb.var = smtcfb_var;
805 sfb->fb.fix = smtcfb_fix;
806
807 strcpy(sfb->fb.fix.id, name);
808
809 sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
810 sfb->fb.fix.type_aux = 0;
811 sfb->fb.fix.xpanstep = 0;
812 sfb->fb.fix.ypanstep = 0;
813 sfb->fb.fix.ywrapstep = 0;
814 sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
815
816 sfb->fb.var.nonstd = 0;
817 sfb->fb.var.activate = FB_ACTIVATE_NOW;
818 sfb->fb.var.height = -1;
819 sfb->fb.var.width = -1;
820 /* text mode acceleration */
821 sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
822 sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
823 sfb->fb.par = &hw;
824 sfb->fb.pseudo_palette = colreg;
825
826 return sfb;
827}
828
829/*
830 * Unmap in the memory mapped IO registers
831 */
832
833static void smtc_unmap_mmio(struct smtcfb_info *sfb)
834{
835 if (sfb && smtc_RegBaseAddress)
836 smtc_RegBaseAddress = NULL;
837}
838
839/*
840 * Map in the screen memory
841 */
842
843static int smtc_map_smem(struct smtcfb_info *sfb,
844 struct pci_dev *dev, u_long smem_len)
845{
846 if (sfb->fb.var.bits_per_pixel == 32) {
847#ifdef __BIG_ENDIAN
848 sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
849 + 0x800000;
850#else
851 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
852#endif
853 } else {
854 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
855 }
856
857 sfb->fb.fix.smem_len = smem_len;
858
859 sfb->fb.screen_base = smtc_VRAMBaseAddress;
860
861 if (!sfb->fb.screen_base) {
862 printk(KERN_INFO "%s: unable to map screen memory\n",
863 sfb->fb.fix.id);
864 return -ENOMEM;
865 }
866
867 return 0;
868}
869
870/*
871 * Unmap in the screen memory
872 *
873 */
874static void smtc_unmap_smem(struct smtcfb_info *sfb)
875{
876 if (sfb && sfb->fb.screen_base) {
877 iounmap(sfb->fb.screen_base);
878 sfb->fb.screen_base = NULL;
879 }
880}
881
882/*
883 * We need to wake up the LynxEM+, and make sure its in linear memory mode.
884 */
885static inline void sm7xx_init_hw(void)
886{
887 outb_p(0x18, 0x3c4);
888 outb_p(0x11, 0x3c5);
889}
890
891static void smtc_free_fb_info(struct smtcfb_info *sfb)
892{
893 if (sfb) {
894 fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
895 kfree(sfb);
896 }
897}
898
899/*
900 * sm712vga_setup - process command line options, get vga parameter
901 * @options: string of options
902 * Returns zero.
903 *
904 */
905static int __init __maybe_unused sm712vga_setup(char *options)
906{
907 int index;
908
909 if (!options || !*options) {
910 smdbg("\n No vga parameter\n");
911 return -EINVAL;
912 }
913
914 smtc_screen_info.lfb_width = 0;
915 smtc_screen_info.lfb_height = 0;
916 smtc_screen_info.lfb_depth = 0;
917
918 smdbg("\nsm712vga_setup = %s\n", options);
919
920 for (index = 0;
921 index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
922 index++) {
923 if (strstr(options, vesa_mode[index].mode_index)) {
924 smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
925 smtc_screen_info.lfb_height =
926 vesa_mode[index].lfb_height;
927 smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
928 return 0;
929 }
930 }
931
932 return -1;
933}
934__setup("vga=", sm712vga_setup);
935
936/* Jason (08/13/2009)
937 * Original init function changed to probe method to be used by pci_drv
938 * process used to detect chips replaced with kernel process in pci_drv
939 */
940static int __init smtcfb_pci_probe(struct pci_dev *pdev,
941 const struct pci_device_id *ent)
942{
943 struct smtcfb_info *sfb;
944 u_long smem_size = 0x00800000; /* default 8MB */
945 char name[16];
946 int err;
947 unsigned long pFramebufferPhysical;
948
949 printk(KERN_INFO
950 "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
951
952 err = pci_enable_device(pdev); /* enable SMTC chip */
953
954 if (err)
955 return err;
956 err = -ENOMEM;
957
958 hw.chipID = ent->device;
959 sprintf(name, "sm%Xfb", hw.chipID);
960
961 sfb = smtc_alloc_fb_info(pdev, name);
962
963 if (!sfb)
964 goto failed;
965 /* Jason (08/13/2009)
966 * Store fb_info to be further used when suspending and resuming
967 */
968 pci_set_drvdata(pdev, sfb);
969
970 sm7xx_init_hw();
971
972 /*get mode parameter from smtc_screen_info */
973 if (smtc_screen_info.lfb_width != 0) {
974 sfb->fb.var.xres = smtc_screen_info.lfb_width;
975 sfb->fb.var.yres = smtc_screen_info.lfb_height;
976 sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
977 } else {
978 /* default resolution 1024x600 16bit mode */
979 sfb->fb.var.xres = SCREEN_X_RES;
980 sfb->fb.var.yres = SCREEN_Y_RES;
981 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
982 }
983
984#ifdef __BIG_ENDIAN
985 if (sfb->fb.var.bits_per_pixel == 24)
986 sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
987#endif
988 /* Map address and memory detection */
989 pFramebufferPhysical = pci_resource_start(pdev, 0);
990 pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
991
992 switch (hw.chipID) {
993 case 0x710:
994 case 0x712:
995 sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
996 sfb->fb.fix.mmio_len = 0x00400000;
997 smem_size = SM712_VIDEOMEMORYSIZE;
998#ifdef __BIG_ENDIAN
999 hw.m_pLFB = (smtc_VRAMBaseAddress =
1000 ioremap(pFramebufferPhysical, 0x00c00000));
1001#else
1002 hw.m_pLFB = (smtc_VRAMBaseAddress =
1003 ioremap(pFramebufferPhysical, 0x00800000));
1004#endif
1005 hw.m_pMMIO = (smtc_RegBaseAddress =
1006 smtc_VRAMBaseAddress + 0x00700000);
1007 smtc_2DBaseAddress = (hw.m_pDPR =
1008 smtc_VRAMBaseAddress + 0x00408000);
1009 smtc_2Ddataport = smtc_VRAMBaseAddress + DE_DATA_PORT_712;
1010 hw.m_pVPR = hw.m_pLFB + 0x0040c000;
1011#ifdef __BIG_ENDIAN
1012 if (sfb->fb.var.bits_per_pixel == 32) {
1013 smtc_VRAMBaseAddress += 0x800000;
1014 hw.m_pLFB += 0x800000;
1015 printk(KERN_INFO
1016 "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
1017 smtc_VRAMBaseAddress, hw.m_pLFB);
1018 }
1019#endif
1020 if (!smtc_RegBaseAddress) {
1021 printk(KERN_INFO
1022 "%s: unable to map memory mapped IO\n",
1023 sfb->fb.fix.id);
1024 return -ENOMEM;
1025 }
1026
1027 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1028 smtc_seqw(0x6a, 0x16);
1029 smtc_seqw(0x6b, 0x02);
1030 smtc_seqw(0x62, 0x3e);
1031 /* enable PCI burst */
1032 smtc_seqw(0x17, 0x20);
1033 /* enable word swap */
1034#ifdef __BIG_ENDIAN
1035 if (sfb->fb.var.bits_per_pixel == 32)
1036 smtc_seqw(0x17, 0x30);
1037#endif
1038#ifdef CONFIG_FB_SM7XX_ACCEL
1039 smtc_2Dacceleration = 1;
1040#endif
1041 break;
1042 case 0x720:
1043 sfb->fb.fix.mmio_start = pFramebufferPhysical;
1044 sfb->fb.fix.mmio_len = 0x00200000;
1045 smem_size = SM722_VIDEOMEMORYSIZE;
1046 smtc_2DBaseAddress = (hw.m_pDPR =
1047 ioremap(pFramebufferPhysical, 0x00a00000));
1048 hw.m_pLFB = (smtc_VRAMBaseAddress =
1049 smtc_2DBaseAddress + 0x00200000);
1050 hw.m_pMMIO = (smtc_RegBaseAddress =
1051 smtc_2DBaseAddress + 0x000c0000);
1052 smtc_2Ddataport = smtc_2DBaseAddress + DE_DATA_PORT_722;
1053 hw.m_pVPR = smtc_2DBaseAddress + 0x800;
1054
1055 smtc_seqw(0x62, 0xff);
1056 smtc_seqw(0x6a, 0x0d);
1057 smtc_seqw(0x6b, 0x02);
1058 smtc_2Dacceleration = 0;
1059 break;
1060 default:
1061 printk(KERN_INFO
1062 "No valid Silicon Motion display chip was detected!\n");
1063
1064 smtc_free_fb_info(sfb);
1065 return err;
1066 }
1067
1068 /* can support 32 bpp */
1069 if (15 == sfb->fb.var.bits_per_pixel)
1070 sfb->fb.var.bits_per_pixel = 16;
1071
1072 sfb->fb.var.xres_virtual = sfb->fb.var.xres;
1073 sfb->fb.var.yres_virtual = sfb->fb.var.yres;
1074 err = smtc_map_smem(sfb, pdev, smem_size);
1075 if (err)
1076 goto failed;
1077
1078 smtcfb_setmode(sfb);
1079 /* Primary display starting from 0 postion */
1080 hw.BaseAddressInVRAM = 0;
1081 sfb->fb.par = &hw;
1082
1083 err = register_framebuffer(&sfb->fb);
1084 if (err < 0)
1085 goto failed;
1086
1087 printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
1088 "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
1089 sfb->fb.var.xres, sfb->fb.var.yres,
1090 sfb->fb.var.bits_per_pixel);
1091
1092 return 0;
1093
1094 failed:
1095 printk(KERN_INFO "Silicon Motion, Inc. primary display init fail\n");
1096
1097 smtc_unmap_smem(sfb);
1098 smtc_unmap_mmio(sfb);
1099 smtc_free_fb_info(sfb);
1100
1101 return err;
1102}
1103
1104
1105/* Jason (08/11/2009) PCI_DRV wrapper essential structs */
1106static struct pci_device_id smtcfb_pci_table[] = {
1107 {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1108 {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1109 {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1110 {0,}
1111};
1112
1113
1114/* Jason (08/14/2009)
1115 * do some clean up when the driver module is removed
1116 */
1117static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
1118{
1119 struct smtcfb_info *sfb;
1120
1121 sfb = pci_get_drvdata(pdev);
1122 pci_set_drvdata(pdev, NULL);
1123 smtc_unmap_smem(sfb);
1124 smtc_unmap_mmio(sfb);
1125 unregister_framebuffer(&sfb->fb);
1126 smtc_free_fb_info(sfb);
1127}
1128
1129/* Jason (08/14/2009)
1130 * suspend function, called when the suspend event is triggered
1131 */
1132static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
1133{
1134 struct smtcfb_info *sfb;
1135 int retv;
1136
1137 sfb = pci_get_drvdata(pdev);
1138
1139 /* set the hw in sleep mode use externel clock and self memory refresh
1140 * so that we can turn off internal PLLs later on
1141 */
1142 smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
1143 smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
1144
1145 switch (msg.event) {
1146 case PM_EVENT_FREEZE:
1147 case PM_EVENT_PRETHAW:
1148 pdev->dev.power.power_state = msg;
1149 return 0;
1150 }
1151
1152 /* when doing suspend, call fb apis and pci apis */
1153 if (msg.event == PM_EVENT_SUSPEND) {
1154 acquire_console_sem();
1155 fb_set_suspend(&sfb->fb, 1);
1156 release_console_sem();
1157 retv = pci_save_state(pdev);
1158 pci_disable_device(pdev);
1159 retv = pci_choose_state(pdev, msg);
1160 retv = pci_set_power_state(pdev, retv);
1161 }
1162
1163 pdev->dev.power.power_state = msg;
1164
1165 /* additionaly turn off all function blocks including internal PLLs */
1166 smtc_seqw(0x21, 0xff);
1167
1168 return 0;
1169}
1170
1171static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
1172{
1173 struct smtcfb_info *sfb;
1174 int retv;
1175
1176 sfb = pci_get_drvdata(pdev);
1177
1178 /* when resuming, restore pci data and fb cursor */
1179 if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
1180 retv = pci_set_power_state(pdev, PCI_D0);
1181 retv = pci_restore_state(pdev);
1182 if (pci_enable_device(pdev))
1183 return -1;
1184 pci_set_master(pdev);
1185 }
1186
1187 /* reinit hardware */
1188 sm7xx_init_hw();
1189 switch (hw.chipID) {
1190 case 0x710:
1191 case 0x712:
1192 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1193 smtc_seqw(0x6a, 0x16);
1194 smtc_seqw(0x6b, 0x02);
1195 smtc_seqw(0x62, 0x3e);
1196 /* enable PCI burst */
1197 smtc_seqw(0x17, 0x20);
1198#ifdef __BIG_ENDIAN
1199 if (sfb->fb.var.bits_per_pixel == 32)
1200 smtc_seqw(0x17, 0x30);
1201#endif
1202 break;
1203 case 0x720:
1204 smtc_seqw(0x62, 0xff);
1205 smtc_seqw(0x6a, 0x0d);
1206 smtc_seqw(0x6b, 0x02);
1207 break;
1208 }
1209
1210 smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
1211 smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
1212
1213 smtcfb_setmode(sfb);
1214
1215 acquire_console_sem();
1216 fb_set_suspend(&sfb->fb, 0);
1217 release_console_sem();
1218
1219 return 0;
1220}
1221
1222/* Jason (08/13/2009)
1223 * pci_driver struct used to wrap the original driver
1224 * so that it can be registered into the kernel and
1225 * the proper method would be called when suspending and resuming
1226 */
1227static struct pci_driver smtcfb_driver = {
1228 .name = "smtcfb",
1229 .id_table = smtcfb_pci_table,
1230 .probe = smtcfb_pci_probe,
1231 .remove = __devexit_p(smtcfb_pci_remove),
1232#ifdef CONFIG_PM
1233 .suspend = smtcfb_suspend,
1234 .resume = smtcfb_resume,
1235#endif
1236};
1237
1238static int __init smtcfb_init(void)
1239{
1240 return pci_register_driver(&smtcfb_driver);
1241}
1242
1243static void __exit smtcfb_exit(void)
1244{
1245 pci_unregister_driver(&smtcfb_driver);
1246}
1247
1248module_init(smtcfb_init);
1249module_exit(smtcfb_exit);
1250
1251MODULE_AUTHOR("Siliconmotion ");
1252MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1253MODULE_LICENSE("GPL");
diff --git a/drivers/staging/sm7xx/smtcfb.h b/drivers/staging/sm7xx/smtcfb.h
new file mode 100644
index 000000000000..7f2c34138215
--- /dev/null
+++ b/drivers/staging/sm7xx/smtcfb.h
@@ -0,0 +1,793 @@
1/*
2 * Silicon Motion SM712 frame buffer device
3 *
4 * Copyright (C) 2006 Silicon Motion Technology Corp.
5 * Authors: Ge Wang, gewang@siliconmotion.com
6 * Boyod boyod.yang@siliconmotion.com.cn
7 *
8 * Copyright (C) 2009 Lemote, Inc.
9 * Author: Wu Zhangjin, wuzj@lemote.com
10 *
11 * This file is subject to the terms and conditions of the GNU General Public
12 * License. See the file COPYING in the main directory of this archive for
13 * more details.
14 */
15
16#define SMTC_LINUX_FB_VERSION "version 0.11.2619.21.01 July 27, 2008"
17
18#define NR_PALETTE 256
19#define NR_RGB 2
20
21#define FB_ACCEL_SMI_LYNX 88
22
23#ifdef __BIG_ENDIAN
24#define PC_VGA 0
25#else
26#define PC_VGA 1
27#endif
28
29#define SCREEN_X_RES 1024
30#define SCREEN_Y_RES 600
31#define SCREEN_BPP 16
32
33#ifndef FIELD_OFFSET
34#define FIELD_OFSFET(type, field) \
35 ((unsigned long) (PUCHAR) & (((type *)0)->field))
36#endif
37
38/*Assume SM712 graphics chip has 4MB VRAM */
39#define SM712_VIDEOMEMORYSIZE 0x00400000
40/*Assume SM722 graphics chip has 8MB VRAM */
41#define SM722_VIDEOMEMORYSIZE 0x00800000
42
43#define dac_reg (0x3c8)
44#define dac_val (0x3c9)
45
46extern char *smtc_RegBaseAddress;
47#define smtc_mmiowb(dat, reg) writeb(dat, smtc_RegBaseAddress + reg)
48#define smtc_mmioww(dat, reg) writew(dat, smtc_RegBaseAddress + reg)
49#define smtc_mmiowl(dat, reg) writel(dat, smtc_RegBaseAddress + reg)
50
51#define smtc_mmiorb(reg) readb(smtc_RegBaseAddress + reg)
52#define smtc_mmiorw(reg) readw(smtc_RegBaseAddress + reg)
53#define smtc_mmiorl(reg) readl(smtc_RegBaseAddress + reg)
54
55#define SIZE_SR00_SR04 (0x04 - 0x00 + 1)
56#define SIZE_SR10_SR24 (0x24 - 0x10 + 1)
57#define SIZE_SR30_SR75 (0x75 - 0x30 + 1)
58#define SIZE_SR80_SR93 (0x93 - 0x80 + 1)
59#define SIZE_SRA0_SRAF (0xAF - 0xA0 + 1)
60#define SIZE_GR00_GR08 (0x08 - 0x00 + 1)
61#define SIZE_AR00_AR14 (0x14 - 0x00 + 1)
62#define SIZE_CR00_CR18 (0x18 - 0x00 + 1)
63#define SIZE_CR30_CR4D (0x4D - 0x30 + 1)
64#define SIZE_CR90_CRA7 (0xA7 - 0x90 + 1)
65#define SIZE_VPR (0x6C + 1)
66#define SIZE_DPR (0x44 + 1)
67
68static inline void smtc_crtcw(int reg, int val)
69{
70 smtc_mmiowb(reg, 0x3d4);
71 smtc_mmiowb(val, 0x3d5);
72}
73
74static inline unsigned int smtc_crtcr(int reg)
75{
76 smtc_mmiowb(reg, 0x3d4);
77 return smtc_mmiorb(0x3d5);
78}
79
80static inline void smtc_grphw(int reg, int val)
81{
82 smtc_mmiowb(reg, 0x3ce);
83 smtc_mmiowb(val, 0x3cf);
84}
85
86static inline unsigned int smtc_grphr(int reg)
87{
88 smtc_mmiowb(reg, 0x3ce);
89 return smtc_mmiorb(0x3cf);
90}
91
92static inline void smtc_attrw(int reg, int val)
93{
94 smtc_mmiorb(0x3da);
95 smtc_mmiowb(reg, 0x3c0);
96 smtc_mmiorb(0x3c1);
97 smtc_mmiowb(val, 0x3c0);
98}
99
100static inline void smtc_seqw(int reg, int val)
101{
102 smtc_mmiowb(reg, 0x3c4);
103 smtc_mmiowb(val, 0x3c5);
104}
105
106static inline unsigned int smtc_seqr(int reg)
107{
108 smtc_mmiowb(reg, 0x3c4);
109 return smtc_mmiorb(0x3c5);
110}
111
112/* The next structure holds all information relevant for a specific video mode.
113 */
114
115struct ModeInit {
116 int mmSizeX;
117 int mmSizeY;
118 int bpp;
119 int hz;
120 unsigned char Init_MISC;
121 unsigned char Init_SR00_SR04[SIZE_SR00_SR04];
122 unsigned char Init_SR10_SR24[SIZE_SR10_SR24];
123 unsigned char Init_SR30_SR75[SIZE_SR30_SR75];
124 unsigned char Init_SR80_SR93[SIZE_SR80_SR93];
125 unsigned char Init_SRA0_SRAF[SIZE_SRA0_SRAF];
126 unsigned char Init_GR00_GR08[SIZE_GR00_GR08];
127 unsigned char Init_AR00_AR14[SIZE_AR00_AR14];
128 unsigned char Init_CR00_CR18[SIZE_CR00_CR18];
129 unsigned char Init_CR30_CR4D[SIZE_CR30_CR4D];
130 unsigned char Init_CR90_CRA7[SIZE_CR90_CRA7];
131};
132
133/**********************************************************************
134 SM712 Mode table.
135 **********************************************************************/
136struct ModeInit VGAMode[] = {
137 {
138 /* mode#0: 640 x 480 16Bpp 60Hz */
139 640, 480, 16, 60,
140 /* Init_MISC */
141 0xE3,
142 { /* Init_SR0_SR4 */
143 0x03, 0x01, 0x0F, 0x00, 0x0E,
144 },
145 { /* Init_SR10_SR24 */
146 0xFF, 0xBE, 0xEF, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
147 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
148 0xC4, 0x30, 0x02, 0x01, 0x01,
149 },
150 { /* Init_SR30_SR75 */
151 0x32, 0x03, 0xA0, 0x09, 0xC0, 0x32, 0x32, 0x32,
152 0x32, 0x32, 0x32, 0x32, 0x00, 0x00, 0x03, 0xFF,
153 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
154 0x20, 0x0C, 0x44, 0x20, 0x00, 0x32, 0x32, 0x32,
155 0x04, 0x24, 0x63, 0x4F, 0x52, 0x0B, 0xDF, 0xEA,
156 0x04, 0x50, 0x19, 0x32, 0x32, 0x00, 0x00, 0x32,
157 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
158 0x50, 0x03, 0x74, 0x14, 0x07, 0x82, 0x07, 0x04,
159 0x00, 0x45, 0x30, 0x30, 0x40, 0x30,
160 },
161 { /* Init_SR80_SR93 */
162 0xFF, 0x07, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x32,
163 0xF7, 0x00, 0x00, 0x00, 0xEF, 0xFF, 0x32, 0x32,
164 0x00, 0x00, 0x00, 0x00,
165 },
166 { /* Init_SRA0_SRAF */
167 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
168 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xFF, 0xDF,
169 },
170 { /* Init_GR00_GR08 */
171 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
172 0xFF,
173 },
174 { /* Init_AR00_AR14 */
175 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
176 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
177 0x41, 0x00, 0x0F, 0x00, 0x00,
178 },
179 { /* Init_CR00_CR18 */
180 0x5F, 0x4F, 0x4F, 0x00, 0x53, 0x1F, 0x0B, 0x3E,
181 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
182 0xEA, 0x0C, 0xDF, 0x50, 0x40, 0xDF, 0x00, 0xE3,
183 0xFF,
184 },
185 { /* Init_CR30_CR4D */
186 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x03, 0x20,
187 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xFF, 0xFD,
188 0x5F, 0x4F, 0x00, 0x54, 0x00, 0x0B, 0xDF, 0x00,
189 0xEA, 0x0C, 0x2E, 0x00, 0x4F, 0xDF,
190 },
191 { /* Init_CR90_CRA7 */
192 0x56, 0xDD, 0x5E, 0xEA, 0x87, 0x44, 0x8F, 0x55,
193 0x0A, 0x8F, 0x55, 0x0A, 0x00, 0x00, 0x18, 0x00,
194 0x11, 0x10, 0x0B, 0x0A, 0x0A, 0x0A, 0x0A, 0x00,
195 },
196 },
197 {
198 /* mode#1: 640 x 480 24Bpp 60Hz */
199 640, 480, 24, 60,
200 /* Init_MISC */
201 0xE3,
202 { /* Init_SR0_SR4 */
203 0x03, 0x01, 0x0F, 0x00, 0x0E,
204 },
205 { /* Init_SR10_SR24 */
206 0xFF, 0xBE, 0xEF, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
207 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
208 0xC4, 0x30, 0x02, 0x01, 0x01,
209 },
210 { /* Init_SR30_SR75 */
211 0x32, 0x03, 0xA0, 0x09, 0xC0, 0x32, 0x32, 0x32,
212 0x32, 0x32, 0x32, 0x32, 0x00, 0x00, 0x03, 0xFF,
213 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
214 0x20, 0x0C, 0x44, 0x20, 0x00, 0x32, 0x32, 0x32,
215 0x04, 0x24, 0x63, 0x4F, 0x52, 0x0B, 0xDF, 0xEA,
216 0x04, 0x50, 0x19, 0x32, 0x32, 0x00, 0x00, 0x32,
217 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
218 0x50, 0x03, 0x74, 0x14, 0x07, 0x82, 0x07, 0x04,
219 0x00, 0x45, 0x30, 0x30, 0x40, 0x30,
220 },
221 { /* Init_SR80_SR93 */
222 0xFF, 0x07, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x32,
223 0xF7, 0x00, 0x00, 0x00, 0xEF, 0xFF, 0x32, 0x32,
224 0x00, 0x00, 0x00, 0x00,
225 },
226 { /* Init_SRA0_SRAF */
227 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
228 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xFF, 0xDF,
229 },
230 { /* Init_GR00_GR08 */
231 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
232 0xFF,
233 },
234 { /* Init_AR00_AR14 */
235 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
236 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
237 0x41, 0x00, 0x0F, 0x00, 0x00,
238 },
239 { /* Init_CR00_CR18 */
240 0x5F, 0x4F, 0x4F, 0x00, 0x53, 0x1F, 0x0B, 0x3E,
241 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
242 0xEA, 0x0C, 0xDF, 0x50, 0x40, 0xDF, 0x00, 0xE3,
243 0xFF,
244 },
245 { /* Init_CR30_CR4D */
246 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x03, 0x20,
247 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xFF, 0xFD,
248 0x5F, 0x4F, 0x00, 0x54, 0x00, 0x0B, 0xDF, 0x00,
249 0xEA, 0x0C, 0x2E, 0x00, 0x4F, 0xDF,
250 },
251 { /* Init_CR90_CRA7 */
252 0x56, 0xDD, 0x5E, 0xEA, 0x87, 0x44, 0x8F, 0x55,
253 0x0A, 0x8F, 0x55, 0x0A, 0x00, 0x00, 0x18, 0x00,
254 0x11, 0x10, 0x0B, 0x0A, 0x0A, 0x0A, 0x0A, 0x00,
255 },
256 },
257 {
258 /* mode#0: 640 x 480 32Bpp 60Hz */
259 640, 480, 32, 60,
260 /* Init_MISC */
261 0xE3,
262 { /* Init_SR0_SR4 */
263 0x03, 0x01, 0x0F, 0x00, 0x0E,
264 },
265 { /* Init_SR10_SR24 */
266 0xFF, 0xBE, 0xEF, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
267 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
268 0xC4, 0x30, 0x02, 0x01, 0x01,
269 },
270 { /* Init_SR30_SR75 */
271 0x32, 0x03, 0xA0, 0x09, 0xC0, 0x32, 0x32, 0x32,
272 0x32, 0x32, 0x32, 0x32, 0x00, 0x00, 0x03, 0xFF,
273 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
274 0x20, 0x0C, 0x44, 0x20, 0x00, 0x32, 0x32, 0x32,
275 0x04, 0x24, 0x63, 0x4F, 0x52, 0x0B, 0xDF, 0xEA,
276 0x04, 0x50, 0x19, 0x32, 0x32, 0x00, 0x00, 0x32,
277 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
278 0x50, 0x03, 0x74, 0x14, 0x07, 0x82, 0x07, 0x04,
279 0x00, 0x45, 0x30, 0x30, 0x40, 0x30,
280 },
281 { /* Init_SR80_SR93 */
282 0xFF, 0x07, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x32,
283 0xF7, 0x00, 0x00, 0x00, 0xEF, 0xFF, 0x32, 0x32,
284 0x00, 0x00, 0x00, 0x00,
285 },
286 { /* Init_SRA0_SRAF */
287 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
288 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xFF, 0xDF,
289 },
290 { /* Init_GR00_GR08 */
291 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
292 0xFF,
293 },
294 { /* Init_AR00_AR14 */
295 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
296 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
297 0x41, 0x00, 0x0F, 0x00, 0x00,
298 },
299 { /* Init_CR00_CR18 */
300 0x5F, 0x4F, 0x4F, 0x00, 0x53, 0x1F, 0x0B, 0x3E,
301 0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
302 0xEA, 0x0C, 0xDF, 0x50, 0x40, 0xDF, 0x00, 0xE3,
303 0xFF,
304 },
305 { /* Init_CR30_CR4D */
306 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0x03, 0x20,
307 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xFF, 0xFD,
308 0x5F, 0x4F, 0x00, 0x54, 0x00, 0x0B, 0xDF, 0x00,
309 0xEA, 0x0C, 0x2E, 0x00, 0x4F, 0xDF,
310 },
311 { /* Init_CR90_CRA7 */
312 0x56, 0xDD, 0x5E, 0xEA, 0x87, 0x44, 0x8F, 0x55,
313 0x0A, 0x8F, 0x55, 0x0A, 0x00, 0x00, 0x18, 0x00,
314 0x11, 0x10, 0x0B, 0x0A, 0x0A, 0x0A, 0x0A, 0x00,
315 },
316 },
317
318 { /* mode#2: 800 x 600 16Bpp 60Hz */
319 800, 600, 16, 60,
320 /* Init_MISC */
321 0x2B,
322 { /* Init_SR0_SR4 */
323 0x03, 0x01, 0x0F, 0x03, 0x0E,
324 },
325 { /* Init_SR10_SR24 */
326 0xFF, 0xBE, 0xEE, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
327 0x99, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
328 0xC4, 0x30, 0x02, 0x01, 0x01,
329 },
330 { /* Init_SR30_SR75 */
331 0x34, 0x03, 0x20, 0x09, 0xC0, 0x24, 0x24, 0x24,
332 0x24, 0x24, 0x24, 0x24, 0x00, 0x00, 0x03, 0xFF,
333 0x00, 0xFC, 0x00, 0x00, 0x20, 0x38, 0x00, 0xFC,
334 0x20, 0x0C, 0x44, 0x20, 0x00, 0x24, 0x24, 0x24,
335 0x04, 0x48, 0x83, 0x63, 0x68, 0x72, 0x57, 0x58,
336 0x04, 0x55, 0x59, 0x24, 0x24, 0x00, 0x00, 0x24,
337 0x01, 0x80, 0x7A, 0x1A, 0x1A, 0x00, 0x00, 0x00,
338 0x50, 0x03, 0x74, 0x14, 0x1C, 0x85, 0x35, 0x13,
339 0x02, 0x45, 0x30, 0x35, 0x40, 0x20,
340 },
341 { /* Init_SR80_SR93 */
342 0x00, 0x00, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x24,
343 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x24, 0x24,
344 0x00, 0x00, 0x00, 0x00,
345 },
346 { /* Init_SRA0_SRAF */
347 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
348 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xBF, 0xDF,
349 },
350 { /* Init_GR00_GR08 */
351 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
352 0xFF,
353 },
354 { /* Init_AR00_AR14 */
355 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
356 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
357 0x41, 0x00, 0x0F, 0x00, 0x00,
358 },
359 { /* Init_CR00_CR18 */
360 0x7F, 0x63, 0x63, 0x00, 0x68, 0x18, 0x72, 0xF0,
361 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
362 0x58, 0x0C, 0x57, 0x64, 0x40, 0x57, 0x00, 0xE3,
363 0xFF,
364 },
365 { /* Init_CR30_CR4D */
366 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x03, 0x20,
367 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xBF, 0xFD,
368 0x7F, 0x63, 0x00, 0x69, 0x18, 0x72, 0x57, 0x00,
369 0x58, 0x0C, 0xE0, 0x20, 0x63, 0x57,
370 },
371 { /* Init_CR90_CRA7 */
372 0x56, 0x4B, 0x5E, 0x55, 0x86, 0x9D, 0x8E, 0xAA,
373 0xDB, 0x2A, 0xDF, 0x33, 0x00, 0x00, 0x18, 0x00,
374 0x20, 0x1F, 0x1A, 0x19, 0x0F, 0x0F, 0x0F, 0x00,
375 },
376 },
377 { /* mode#3: 800 x 600 24Bpp 60Hz */
378 800, 600, 24, 60,
379 0x2B,
380 { /* Init_SR0_SR4 */
381 0x03, 0x01, 0x0F, 0x03, 0x0E,
382 },
383 { /* Init_SR10_SR24 */
384 0xFF, 0xBE, 0xEE, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
385 0x99, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
386 0xC4, 0x30, 0x02, 0x01, 0x01,
387 },
388 { /* Init_SR30_SR75 */
389 0x36, 0x03, 0x20, 0x09, 0xC0, 0x36, 0x36, 0x36,
390 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0x03, 0xFF,
391 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
392 0x20, 0x0C, 0x44, 0x20, 0x00, 0x36, 0x36, 0x36,
393 0x04, 0x48, 0x83, 0x63, 0x68, 0x72, 0x57, 0x58,
394 0x04, 0x55, 0x59, 0x36, 0x36, 0x00, 0x00, 0x36,
395 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
396 0x50, 0x03, 0x74, 0x14, 0x1C, 0x85, 0x35, 0x13,
397 0x02, 0x45, 0x30, 0x30, 0x40, 0x20,
398 },
399 { /* Init_SR80_SR93 */
400 0xFF, 0x07, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x36,
401 0xF7, 0x00, 0x00, 0x00, 0xEF, 0xFF, 0x36, 0x36,
402 0x00, 0x00, 0x00, 0x00,
403 },
404 { /* Init_SRA0_SRAF */
405 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
406 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xBF, 0xDF,
407 },
408 { /* Init_GR00_GR08 */
409 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
410 0xFF,
411 },
412 { /* Init_AR00_AR14 */
413 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
414 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
415 0x41, 0x00, 0x0F, 0x00, 0x00,
416 },
417 { /* Init_CR00_CR18 */
418 0x7F, 0x63, 0x63, 0x00, 0x68, 0x18, 0x72, 0xF0,
419 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
420 0x58, 0x0C, 0x57, 0x64, 0x40, 0x57, 0x00, 0xE3,
421 0xFF,
422 },
423 { /* Init_CR30_CR4D */
424 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x03, 0x20,
425 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xBF, 0xFD,
426 0x7F, 0x63, 0x00, 0x69, 0x18, 0x72, 0x57, 0x00,
427 0x58, 0x0C, 0xE0, 0x20, 0x63, 0x57,
428 },
429 { /* Init_CR90_CRA7 */
430 0x56, 0x4B, 0x5E, 0x55, 0x86, 0x9D, 0x8E, 0xAA,
431 0xDB, 0x2A, 0xDF, 0x33, 0x00, 0x00, 0x18, 0x00,
432 0x20, 0x1F, 0x1A, 0x19, 0x0F, 0x0F, 0x0F, 0x00,
433 },
434 },
435 { /* mode#7: 800 x 600 32Bpp 60Hz */
436 800, 600, 32, 60,
437 /* Init_MISC */
438 0x2B,
439 { /* Init_SR0_SR4 */
440 0x03, 0x01, 0x0F, 0x03, 0x0E,
441 },
442 { /* Init_SR10_SR24 */
443 0xFF, 0xBE, 0xEE, 0xFF, 0x00, 0x0E, 0x17, 0x2C,
444 0x99, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
445 0xC4, 0x30, 0x02, 0x01, 0x01,
446 },
447 { /* Init_SR30_SR75 */
448 0x34, 0x03, 0x20, 0x09, 0xC0, 0x24, 0x24, 0x24,
449 0x24, 0x24, 0x24, 0x24, 0x00, 0x00, 0x03, 0xFF,
450 0x00, 0xFC, 0x00, 0x00, 0x20, 0x38, 0x00, 0xFC,
451 0x20, 0x0C, 0x44, 0x20, 0x00, 0x24, 0x24, 0x24,
452 0x04, 0x48, 0x83, 0x63, 0x68, 0x72, 0x57, 0x58,
453 0x04, 0x55, 0x59, 0x24, 0x24, 0x00, 0x00, 0x24,
454 0x01, 0x80, 0x7A, 0x1A, 0x1A, 0x00, 0x00, 0x00,
455 0x50, 0x03, 0x74, 0x14, 0x1C, 0x85, 0x35, 0x13,
456 0x02, 0x45, 0x30, 0x35, 0x40, 0x20,
457 },
458 { /* Init_SR80_SR93 */
459 0x00, 0x00, 0x00, 0x6F, 0x7F, 0x7F, 0xFF, 0x24,
460 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x24, 0x24,
461 0x00, 0x00, 0x00, 0x00,
462 },
463 { /* Init_SRA0_SRAF */
464 0x00, 0xFF, 0xBF, 0xFF, 0xFF, 0xED, 0xED, 0xED,
465 0x7B, 0xFF, 0xFF, 0xFF, 0xBF, 0xEF, 0xBF, 0xDF,
466 },
467 { /* Init_GR00_GR08 */
468 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
469 0xFF,
470 },
471 { /* Init_AR00_AR14 */
472 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
473 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
474 0x41, 0x00, 0x0F, 0x00, 0x00,
475 },
476 { /* Init_CR00_CR18 */
477 0x7F, 0x63, 0x63, 0x00, 0x68, 0x18, 0x72, 0xF0,
478 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
479 0x58, 0x0C, 0x57, 0x64, 0x40, 0x57, 0x00, 0xE3,
480 0xFF,
481 },
482 { /* Init_CR30_CR4D */
483 0x00, 0x00, 0x00, 0x00, 0x00, 0x33, 0x03, 0x20,
484 0x00, 0x00, 0x00, 0x40, 0x00, 0xE7, 0xBF, 0xFD,
485 0x7F, 0x63, 0x00, 0x69, 0x18, 0x72, 0x57, 0x00,
486 0x58, 0x0C, 0xE0, 0x20, 0x63, 0x57,
487 },
488 { /* Init_CR90_CRA7 */
489 0x56, 0x4B, 0x5E, 0x55, 0x86, 0x9D, 0x8E, 0xAA,
490 0xDB, 0x2A, 0xDF, 0x33, 0x00, 0x00, 0x18, 0x00,
491 0x20, 0x1F, 0x1A, 0x19, 0x0F, 0x0F, 0x0F, 0x00,
492 },
493 },
494 /* We use 1024x768 table to light 1024x600 panel for lemote */
495 { /* mode#4: 1024 x 600 16Bpp 60Hz */
496 1024, 600, 16, 60,
497 /* Init_MISC */
498 0xEB,
499 { /* Init_SR0_SR4 */
500 0x03, 0x01, 0x0F, 0x00, 0x0E,
501 },
502 { /* Init_SR10_SR24 */
503 0xC8, 0x40, 0x14, 0x60, 0x00, 0x0A, 0x17, 0x20,
504 0x51, 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
505 0xC4, 0x30, 0x02, 0x00, 0x01,
506 },
507 { /* Init_SR30_SR75 */
508 0x22, 0x03, 0x24, 0x09, 0xC0, 0x22, 0x22, 0x22,
509 0x22, 0x22, 0x22, 0x22, 0x00, 0x00, 0x03, 0xFF,
510 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
511 0x20, 0x0C, 0x44, 0x20, 0x00, 0x22, 0x22, 0x22,
512 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
513 0x00, 0x60, 0x59, 0x22, 0x22, 0x00, 0x00, 0x22,
514 0x01, 0x80, 0x7A, 0x1A, 0x1A, 0x00, 0x00, 0x00,
515 0x50, 0x03, 0x16, 0x02, 0x0D, 0x82, 0x09, 0x02,
516 0x04, 0x45, 0x3F, 0x30, 0x40, 0x20,
517 },
518 { /* Init_SR80_SR93 */
519 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
520 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
521 0x00, 0x00, 0x00, 0x00,
522 },
523 { /* Init_SRA0_SRAF */
524 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
525 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
526 },
527 { /* Init_GR00_GR08 */
528 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
529 0xFF,
530 },
531 { /* Init_AR00_AR14 */
532 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
533 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
534 0x41, 0x00, 0x0F, 0x00, 0x00,
535 },
536 { /* Init_CR00_CR18 */
537 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
538 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
539 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
540 0xFF,
541 },
542 { /* Init_CR30_CR4D */
543 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
544 0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
545 0xA3, 0x7F, 0x00, 0x82, 0x0b, 0x6f, 0x57, 0x00,
546 0x5c, 0x0f, 0xE0, 0xe0, 0x7F, 0x57,
547 },
548 { /* Init_CR90_CRA7 */
549 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
550 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
551 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
552 },
553 },
554 { /* mode#5: 1024 x 768 24Bpp 60Hz */
555 1024, 768, 24, 60,
556 /* Init_MISC */
557 0xEB,
558 { /* Init_SR0_SR4 */
559 0x03, 0x01, 0x0F, 0x03, 0x0E,
560 },
561 { /* Init_SR10_SR24 */
562 0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
563 0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
564 0xC4, 0x30, 0x02, 0x01, 0x01,
565 },
566 { /* Init_SR30_SR75 */
567 0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
568 0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
569 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
570 0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
571 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
572 0x00, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
573 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
574 0x50, 0x03, 0x74, 0x14, 0x3B, 0x0D, 0x09, 0x02,
575 0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
576 },
577 { /* Init_SR80_SR93 */
578 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
579 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
580 0x00, 0x00, 0x00, 0x00,
581 },
582 { /* Init_SRA0_SRAF */
583 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
584 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
585 },
586 { /* Init_GR00_GR08 */
587 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
588 0xFF,
589 },
590 { /* Init_AR00_AR14 */
591 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
592 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
593 0x41, 0x00, 0x0F, 0x00, 0x00,
594 },
595 { /* Init_CR00_CR18 */
596 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
597 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
598 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
599 0xFF,
600 },
601 { /* Init_CR30_CR4D */
602 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
603 0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
604 0xA3, 0x7F, 0x00, 0x86, 0x15, 0x24, 0xFF, 0x00,
605 0x01, 0x07, 0xE5, 0x20, 0x7F, 0xFF,
606 },
607 { /* Init_CR90_CRA7 */
608 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
609 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
610 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
611 },
612 },
613 { /* mode#4: 1024 x 768 32Bpp 60Hz */
614 1024, 768, 32, 60,
615 /* Init_MISC */
616 0xEB,
617 { /* Init_SR0_SR4 */
618 0x03, 0x01, 0x0F, 0x03, 0x0E,
619 },
620 { /* Init_SR10_SR24 */
621 0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
622 0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
623 0xC4, 0x32, 0x02, 0x01, 0x01,
624 },
625 { /* Init_SR30_SR75 */
626 0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
627 0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
628 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
629 0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
630 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
631 0x00, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
632 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
633 0x50, 0x03, 0x74, 0x14, 0x3B, 0x0D, 0x09, 0x02,
634 0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
635 },
636 { /* Init_SR80_SR93 */
637 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
638 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
639 0x00, 0x00, 0x00, 0x00,
640 },
641 { /* Init_SRA0_SRAF */
642 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
643 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
644 },
645 { /* Init_GR00_GR08 */
646 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
647 0xFF,
648 },
649 { /* Init_AR00_AR14 */
650 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
651 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
652 0x41, 0x00, 0x0F, 0x00, 0x00,
653 },
654 { /* Init_CR00_CR18 */
655 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
656 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
657 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
658 0xFF,
659 },
660 { /* Init_CR30_CR4D */
661 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
662 0x00, 0x00, 0x00, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
663 0xA3, 0x7F, 0x00, 0x86, 0x15, 0x24, 0xFF, 0x00,
664 0x01, 0x07, 0xE5, 0x20, 0x7F, 0xFF,
665 },
666 { /* Init_CR90_CRA7 */
667 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
668 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
669 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
670 },
671 },
672 { /* mode#6: 320 x 240 16Bpp 60Hz */
673 320, 240, 16, 60,
674 /* Init_MISC */
675 0xEB,
676 { /* Init_SR0_SR4 */
677 0x03, 0x01, 0x0F, 0x03, 0x0E,
678 },
679 { /* Init_SR10_SR24 */
680 0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
681 0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
682 0xC4, 0x32, 0x02, 0x01, 0x01,
683 },
684 { /* Init_SR30_SR75 */
685 0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
686 0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
687 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
688 0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
689 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
690 0x00, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
691 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
692 0x50, 0x03, 0x74, 0x14, 0x08, 0x43, 0x08, 0x43,
693 0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
694 },
695 { /* Init_SR80_SR93 */
696 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
697 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
698 0x00, 0x00, 0x00, 0x00,
699 },
700 { /* Init_SRA0_SRAF */
701 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
702 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
703 },
704 { /* Init_GR00_GR08 */
705 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
706 0xFF,
707 },
708 { /* Init_AR00_AR14 */
709 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
710 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
711 0x41, 0x00, 0x0F, 0x00, 0x00,
712 },
713 { /* Init_CR00_CR18 */
714 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
715 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
716 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
717 0xFF,
718 },
719 { /* Init_CR30_CR4D */
720 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
721 0x00, 0x00, 0x30, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
722 0x2E, 0x27, 0x00, 0x2b, 0x0c, 0x0F, 0xEF, 0x00,
723 0xFe, 0x0f, 0x01, 0xC0, 0x27, 0xEF,
724 },
725 { /* Init_CR90_CRA7 */
726 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
727 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
728 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
729 },
730 },
731
732 { /* mode#8: 320 x 240 32Bpp 60Hz */
733 320, 240, 32, 60,
734 /* Init_MISC */
735 0xEB,
736 { /* Init_SR0_SR4 */
737 0x03, 0x01, 0x0F, 0x03, 0x0E,
738 },
739 { /* Init_SR10_SR24 */
740 0xF3, 0xB6, 0xC0, 0xDD, 0x00, 0x0E, 0x17, 0x2C,
741 0x99, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00,
742 0xC4, 0x32, 0x02, 0x01, 0x01,
743 },
744 { /* Init_SR30_SR75 */
745 0x38, 0x03, 0x20, 0x09, 0xC0, 0x3A, 0x3A, 0x3A,
746 0x3A, 0x3A, 0x3A, 0x3A, 0x00, 0x00, 0x03, 0xFF,
747 0x00, 0xFC, 0x00, 0x00, 0x20, 0x18, 0x00, 0xFC,
748 0x20, 0x0C, 0x44, 0x20, 0x00, 0x00, 0x00, 0x3A,
749 0x06, 0x68, 0xA7, 0x7F, 0x83, 0x24, 0xFF, 0x03,
750 0x00, 0x60, 0x59, 0x3A, 0x3A, 0x00, 0x00, 0x3A,
751 0x01, 0x80, 0x7E, 0x1A, 0x1A, 0x00, 0x00, 0x00,
752 0x50, 0x03, 0x74, 0x14, 0x08, 0x43, 0x08, 0x43,
753 0x04, 0x45, 0x30, 0x30, 0x40, 0x20,
754 },
755 { /* Init_SR80_SR93 */
756 0xFF, 0x07, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3A,
757 0xF7, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x3A, 0x3A,
758 0x00, 0x00, 0x00, 0x00,
759 },
760 { /* Init_SRA0_SRAF */
761 0x00, 0xFB, 0x9F, 0x01, 0x00, 0xED, 0xED, 0xED,
762 0x7B, 0xFB, 0xFF, 0xFF, 0x97, 0xEF, 0xBF, 0xDF,
763 },
764 { /* Init_GR00_GR08 */
765 0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F,
766 0xFF,
767 },
768 { /* Init_AR00_AR14 */
769 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
770 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
771 0x41, 0x00, 0x0F, 0x00, 0x00,
772 },
773 { /* Init_CR00_CR18 */
774 0xA3, 0x7F, 0x7F, 0x00, 0x85, 0x16, 0x24, 0xF5,
775 0x00, 0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
776 0x03, 0x09, 0xFF, 0x80, 0x40, 0xFF, 0x00, 0xE3,
777 0xFF,
778 },
779 { /* Init_CR30_CR4D */
780 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x02, 0x20,
781 0x00, 0x00, 0x30, 0x40, 0x00, 0xFF, 0xBF, 0xFF,
782 0x2E, 0x27, 0x00, 0x2b, 0x0c, 0x0F, 0xEF, 0x00,
783 0xFe, 0x0f, 0x01, 0xC0, 0x27, 0xEF,
784 },
785 { /* Init_CR90_CRA7 */
786 0x55, 0xD9, 0x5D, 0xE1, 0x86, 0x1B, 0x8E, 0x26,
787 0xDA, 0x8D, 0xDE, 0x94, 0x00, 0x00, 0x18, 0x00,
788 0x03, 0x03, 0x03, 0x03, 0x03, 0x03, 0x15, 0x03,
789 },
790 },
791};
792
793#define numVGAModes (sizeof(VGAMode) / sizeof(struct ModeInit))
diff --git a/drivers/staging/vt6655/Kconfig b/drivers/staging/vt6655/Kconfig
index 825bbc4fc3fa..061e730df2d0 100644
--- a/drivers/staging/vt6655/Kconfig
+++ b/drivers/staging/vt6655/Kconfig
@@ -1,6 +1,6 @@
1config VT6655 1config VT6655
2 tristate "VIA Technologies VT6655 support" 2 tristate "VIA Technologies VT6655 support"
3 depends on PCI 3 depends on PCI && WLAN
4 select WIRELESS_EXT 4 select WIRELESS_EXT
5 select WEXT_PRIV 5 select WEXT_PRIV
6 ---help--- 6 ---help---
diff --git a/drivers/staging/vt6656/Kconfig b/drivers/staging/vt6656/Kconfig
index 87bcd269310c..1055b526c532 100644
--- a/drivers/staging/vt6656/Kconfig
+++ b/drivers/staging/vt6656/Kconfig
@@ -1,6 +1,6 @@
1config VT6656 1config VT6656
2 tristate "VIA Technologies VT6656 support" 2 tristate "VIA Technologies VT6656 support"
3 depends on USB 3 depends on USB && WLAN
4 select WIRELESS_EXT 4 select WIRELESS_EXT
5 select WEXT_PRIV 5 select WEXT_PRIV
6 ---help--- 6 ---help---
diff --git a/drivers/staging/wlan-ng/prism2fw.c b/drivers/staging/wlan-ng/prism2fw.c
index 7d76a7f92a33..aaa70ed57710 100644
--- a/drivers/staging/wlan-ng/prism2fw.c
+++ b/drivers/staging/wlan-ng/prism2fw.c
@@ -439,7 +439,7 @@ void free_chunks(imgchunk_t *fchunk, unsigned int *nfchunks)
439 } 439 }
440 } 440 }
441 *nfchunks = 0; 441 *nfchunks = 0;
442 memset(fchunk, 0, sizeof(fchunk)); 442 memset(fchunk, 0, sizeof(*fchunk));
443 443
444} 444}
445 445
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index ad14227f509e..455e6e6e5cb9 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -970,7 +970,7 @@ static int ext3_get_block(struct inode *inode, sector_t iblock,
970 if (max_blocks > DIO_MAX_BLOCKS) 970 if (max_blocks > DIO_MAX_BLOCKS)
971 max_blocks = DIO_MAX_BLOCKS; 971 max_blocks = DIO_MAX_BLOCKS;
972 handle = ext3_journal_start(inode, DIO_CREDITS + 972 handle = ext3_journal_start(inode, DIO_CREDITS +
973 2 * EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb)); 973 EXT3_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb));
974 if (IS_ERR(handle)) { 974 if (IS_ERR(handle)) {
975 ret = PTR_ERR(handle); 975 ret = PTR_ERR(handle);
976 goto out; 976 goto out;
@@ -3146,8 +3146,8 @@ int ext3_setattr(struct dentry *dentry, struct iattr *attr)
3146 3146
3147 /* (user+group)*(old+new) structure, inode write (sb, 3147 /* (user+group)*(old+new) structure, inode write (sb,
3148 * inode block, ? - but truncate inode update has it) */ 3148 * inode block, ? - but truncate inode update has it) */
3149 handle = ext3_journal_start(inode, 2*(EXT3_QUOTA_INIT_BLOCKS(inode->i_sb)+ 3149 handle = ext3_journal_start(inode, EXT3_MAXQUOTAS_INIT_BLOCKS(inode->i_sb)+
3150 EXT3_QUOTA_DEL_BLOCKS(inode->i_sb))+3); 3150 EXT3_MAXQUOTAS_DEL_BLOCKS(inode->i_sb)+3);
3151 if (IS_ERR(handle)) { 3151 if (IS_ERR(handle)) {
3152 error = PTR_ERR(handle); 3152 error = PTR_ERR(handle);
3153 goto err_out; 3153 goto err_out;
@@ -3239,7 +3239,7 @@ static int ext3_writepage_trans_blocks(struct inode *inode)
3239#ifdef CONFIG_QUOTA 3239#ifdef CONFIG_QUOTA
3240 /* We know that structure was already allocated during vfs_dq_init so 3240 /* We know that structure was already allocated during vfs_dq_init so
3241 * we will be updating only the data blocks + inodes */ 3241 * we will be updating only the data blocks + inodes */
3242 ret += 2*EXT3_QUOTA_TRANS_BLOCKS(inode->i_sb); 3242 ret += EXT3_MAXQUOTAS_TRANS_BLOCKS(inode->i_sb);
3243#endif 3243#endif
3244 3244
3245 return ret; 3245 return ret;
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index aad6400c9b77..7b0e44f7d66f 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -1699,7 +1699,7 @@ static int ext3_create (struct inode * dir, struct dentry * dentry, int mode,
1699retry: 1699retry:
1700 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + 1700 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
1701 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1701 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1702 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); 1702 EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1703 if (IS_ERR(handle)) 1703 if (IS_ERR(handle))
1704 return PTR_ERR(handle); 1704 return PTR_ERR(handle);
1705 1705
@@ -1733,7 +1733,7 @@ static int ext3_mknod (struct inode * dir, struct dentry *dentry,
1733retry: 1733retry:
1734 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + 1734 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
1735 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1735 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1736 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); 1736 EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1737 if (IS_ERR(handle)) 1737 if (IS_ERR(handle))
1738 return PTR_ERR(handle); 1738 return PTR_ERR(handle);
1739 1739
@@ -1769,7 +1769,7 @@ static int ext3_mkdir(struct inode * dir, struct dentry * dentry, int mode)
1769retry: 1769retry:
1770 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + 1770 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
1771 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 + 1771 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 3 +
1772 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); 1772 EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
1773 if (IS_ERR(handle)) 1773 if (IS_ERR(handle))
1774 return PTR_ERR(handle); 1774 return PTR_ERR(handle);
1775 1775
@@ -1920,7 +1920,7 @@ int ext3_orphan_add(handle_t *handle, struct inode *inode)
1920 struct ext3_iloc iloc; 1920 struct ext3_iloc iloc;
1921 int err = 0, rc; 1921 int err = 0, rc;
1922 1922
1923 lock_super(sb); 1923 mutex_lock(&EXT3_SB(sb)->s_orphan_lock);
1924 if (!list_empty(&EXT3_I(inode)->i_orphan)) 1924 if (!list_empty(&EXT3_I(inode)->i_orphan))
1925 goto out_unlock; 1925 goto out_unlock;
1926 1926
@@ -1929,9 +1929,13 @@ int ext3_orphan_add(handle_t *handle, struct inode *inode)
1929 1929
1930 /* @@@ FIXME: Observation from aviro: 1930 /* @@@ FIXME: Observation from aviro:
1931 * I think I can trigger J_ASSERT in ext3_orphan_add(). We block 1931 * I think I can trigger J_ASSERT in ext3_orphan_add(). We block
1932 * here (on lock_super()), so race with ext3_link() which might bump 1932 * here (on s_orphan_lock), so race with ext3_link() which might bump
1933 * ->i_nlink. For, say it, character device. Not a regular file, 1933 * ->i_nlink. For, say it, character device. Not a regular file,
1934 * not a directory, not a symlink and ->i_nlink > 0. 1934 * not a directory, not a symlink and ->i_nlink > 0.
1935 *
1936 * tytso, 4/25/2009: I'm not sure how that could happen;
1937 * shouldn't the fs core protect us from these sort of
1938 * unlink()/link() races?
1935 */ 1939 */
1936 J_ASSERT ((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) || 1940 J_ASSERT ((S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
1937 S_ISLNK(inode->i_mode)) || inode->i_nlink == 0); 1941 S_ISLNK(inode->i_mode)) || inode->i_nlink == 0);
@@ -1968,7 +1972,7 @@ int ext3_orphan_add(handle_t *handle, struct inode *inode)
1968 jbd_debug(4, "orphan inode %lu will point to %d\n", 1972 jbd_debug(4, "orphan inode %lu will point to %d\n",
1969 inode->i_ino, NEXT_ORPHAN(inode)); 1973 inode->i_ino, NEXT_ORPHAN(inode));
1970out_unlock: 1974out_unlock:
1971 unlock_super(sb); 1975 mutex_unlock(&EXT3_SB(sb)->s_orphan_lock);
1972 ext3_std_error(inode->i_sb, err); 1976 ext3_std_error(inode->i_sb, err);
1973 return err; 1977 return err;
1974} 1978}
@@ -1986,11 +1990,9 @@ int ext3_orphan_del(handle_t *handle, struct inode *inode)
1986 struct ext3_iloc iloc; 1990 struct ext3_iloc iloc;
1987 int err = 0; 1991 int err = 0;
1988 1992
1989 lock_super(inode->i_sb); 1993 mutex_lock(&EXT3_SB(inode->i_sb)->s_orphan_lock);
1990 if (list_empty(&ei->i_orphan)) { 1994 if (list_empty(&ei->i_orphan))
1991 unlock_super(inode->i_sb); 1995 goto out;
1992 return 0;
1993 }
1994 1996
1995 ino_next = NEXT_ORPHAN(inode); 1997 ino_next = NEXT_ORPHAN(inode);
1996 prev = ei->i_orphan.prev; 1998 prev = ei->i_orphan.prev;
@@ -2040,7 +2042,7 @@ int ext3_orphan_del(handle_t *handle, struct inode *inode)
2040out_err: 2042out_err:
2041 ext3_std_error(inode->i_sb, err); 2043 ext3_std_error(inode->i_sb, err);
2042out: 2044out:
2043 unlock_super(inode->i_sb); 2045 mutex_unlock(&EXT3_SB(inode->i_sb)->s_orphan_lock);
2044 return err; 2046 return err;
2045 2047
2046out_brelse: 2048out_brelse:
@@ -2175,7 +2177,7 @@ static int ext3_symlink (struct inode * dir,
2175retry: 2177retry:
2176 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) + 2178 handle = ext3_journal_start(dir, EXT3_DATA_TRANS_BLOCKS(dir->i_sb) +
2177 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 + 2179 EXT3_INDEX_EXTRA_TRANS_BLOCKS + 5 +
2178 2*EXT3_QUOTA_INIT_BLOCKS(dir->i_sb)); 2180 EXT3_MAXQUOTAS_INIT_BLOCKS(dir->i_sb));
2179 if (IS_ERR(handle)) 2181 if (IS_ERR(handle))
2180 return PTR_ERR(handle); 2182 return PTR_ERR(handle);
2181 2183
diff --git a/fs/ext3/resize.c b/fs/ext3/resize.c
index 5f83b6179178..54351ac7cef9 100644
--- a/fs/ext3/resize.c
+++ b/fs/ext3/resize.c
@@ -209,7 +209,7 @@ static int setup_new_group_blocks(struct super_block *sb,
209 if (IS_ERR(handle)) 209 if (IS_ERR(handle))
210 return PTR_ERR(handle); 210 return PTR_ERR(handle);
211 211
212 lock_super(sb); 212 mutex_lock(&sbi->s_resize_lock);
213 if (input->group != sbi->s_groups_count) { 213 if (input->group != sbi->s_groups_count) {
214 err = -EBUSY; 214 err = -EBUSY;
215 goto exit_journal; 215 goto exit_journal;
@@ -324,7 +324,7 @@ exit_bh:
324 brelse(bh); 324 brelse(bh);
325 325
326exit_journal: 326exit_journal:
327 unlock_super(sb); 327 mutex_unlock(&sbi->s_resize_lock);
328 if ((err2 = ext3_journal_stop(handle)) && !err) 328 if ((err2 = ext3_journal_stop(handle)) && !err)
329 err = err2; 329 err = err2;
330 330
@@ -662,11 +662,12 @@ exit_free:
662 * important part is that the new block and inode counts are in the backup 662 * important part is that the new block and inode counts are in the backup
663 * superblocks, and the location of the new group metadata in the GDT backups. 663 * superblocks, and the location of the new group metadata in the GDT backups.
664 * 664 *
665 * We do not need lock_super() for this, because these blocks are not 665 * We do not need take the s_resize_lock for this, because these
666 * otherwise touched by the filesystem code when it is mounted. We don't 666 * blocks are not otherwise touched by the filesystem code when it is
667 * need to worry about last changing from sbi->s_groups_count, because the 667 * mounted. We don't need to worry about last changing from
668 * worst that can happen is that we do not copy the full number of backups 668 * sbi->s_groups_count, because the worst that can happen is that we
669 * at this time. The resize which changed s_groups_count will backup again. 669 * do not copy the full number of backups at this time. The resize
670 * which changed s_groups_count will backup again.
670 */ 671 */
671static void update_backups(struct super_block *sb, 672static void update_backups(struct super_block *sb,
672 int blk_off, char *data, int size) 673 int blk_off, char *data, int size)
@@ -825,7 +826,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
825 goto exit_put; 826 goto exit_put;
826 } 827 }
827 828
828 lock_super(sb); 829 mutex_lock(&sbi->s_resize_lock);
829 if (input->group != sbi->s_groups_count) { 830 if (input->group != sbi->s_groups_count) {
830 ext3_warning(sb, __func__, 831 ext3_warning(sb, __func__,
831 "multiple resizers run on filesystem!"); 832 "multiple resizers run on filesystem!");
@@ -856,7 +857,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
856 /* 857 /*
857 * OK, now we've set up the new group. Time to make it active. 858 * OK, now we've set up the new group. Time to make it active.
858 * 859 *
859 * Current kernels don't lock all allocations via lock_super(), 860 * We do not lock all allocations via s_resize_lock
860 * so we have to be safe wrt. concurrent accesses the group 861 * so we have to be safe wrt. concurrent accesses the group
861 * data. So we need to be careful to set all of the relevant 862 * data. So we need to be careful to set all of the relevant
862 * group descriptor data etc. *before* we enable the group. 863 * group descriptor data etc. *before* we enable the group.
@@ -900,12 +901,12 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
900 * 901 *
901 * The precise rules we use are: 902 * The precise rules we use are:
902 * 903 *
903 * * Writers of s_groups_count *must* hold lock_super 904 * * Writers of s_groups_count *must* hold s_resize_lock
904 * AND 905 * AND
905 * * Writers must perform a smp_wmb() after updating all dependent 906 * * Writers must perform a smp_wmb() after updating all dependent
906 * data and before modifying the groups count 907 * data and before modifying the groups count
907 * 908 *
908 * * Readers must hold lock_super() over the access 909 * * Readers must hold s_resize_lock over the access
909 * OR 910 * OR
910 * * Readers must perform an smp_rmb() after reading the groups count 911 * * Readers must perform an smp_rmb() after reading the groups count
911 * and before reading any dependent data. 912 * and before reading any dependent data.
@@ -936,7 +937,7 @@ int ext3_group_add(struct super_block *sb, struct ext3_new_group_data *input)
936 ext3_journal_dirty_metadata(handle, sbi->s_sbh); 937 ext3_journal_dirty_metadata(handle, sbi->s_sbh);
937 938
938exit_journal: 939exit_journal:
939 unlock_super(sb); 940 mutex_unlock(&sbi->s_resize_lock);
940 if ((err2 = ext3_journal_stop(handle)) && !err) 941 if ((err2 = ext3_journal_stop(handle)) && !err)
941 err = err2; 942 err = err2;
942 if (!err) { 943 if (!err) {
@@ -973,7 +974,7 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
973 974
974 /* We don't need to worry about locking wrt other resizers just 975 /* We don't need to worry about locking wrt other resizers just
975 * yet: we're going to revalidate es->s_blocks_count after 976 * yet: we're going to revalidate es->s_blocks_count after
976 * taking lock_super() below. */ 977 * taking the s_resize_lock below. */
977 o_blocks_count = le32_to_cpu(es->s_blocks_count); 978 o_blocks_count = le32_to_cpu(es->s_blocks_count);
978 o_groups_count = EXT3_SB(sb)->s_groups_count; 979 o_groups_count = EXT3_SB(sb)->s_groups_count;
979 980
@@ -1045,11 +1046,11 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
1045 goto exit_put; 1046 goto exit_put;
1046 } 1047 }
1047 1048
1048 lock_super(sb); 1049 mutex_lock(&EXT3_SB(sb)->s_resize_lock);
1049 if (o_blocks_count != le32_to_cpu(es->s_blocks_count)) { 1050 if (o_blocks_count != le32_to_cpu(es->s_blocks_count)) {
1050 ext3_warning(sb, __func__, 1051 ext3_warning(sb, __func__,
1051 "multiple resizers run on filesystem!"); 1052 "multiple resizers run on filesystem!");
1052 unlock_super(sb); 1053 mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
1053 ext3_journal_stop(handle); 1054 ext3_journal_stop(handle);
1054 err = -EBUSY; 1055 err = -EBUSY;
1055 goto exit_put; 1056 goto exit_put;
@@ -1059,13 +1060,13 @@ int ext3_group_extend(struct super_block *sb, struct ext3_super_block *es,
1059 EXT3_SB(sb)->s_sbh))) { 1060 EXT3_SB(sb)->s_sbh))) {
1060 ext3_warning(sb, __func__, 1061 ext3_warning(sb, __func__,
1061 "error %d on journal write access", err); 1062 "error %d on journal write access", err);
1062 unlock_super(sb); 1063 mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
1063 ext3_journal_stop(handle); 1064 ext3_journal_stop(handle);
1064 goto exit_put; 1065 goto exit_put;
1065 } 1066 }
1066 es->s_blocks_count = cpu_to_le32(o_blocks_count + add); 1067 es->s_blocks_count = cpu_to_le32(o_blocks_count + add);
1067 ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh); 1068 ext3_journal_dirty_metadata(handle, EXT3_SB(sb)->s_sbh);
1068 unlock_super(sb); 1069 mutex_unlock(&EXT3_SB(sb)->s_resize_lock);
1069 ext3_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count, 1070 ext3_debug("freeing blocks %lu through "E3FSBLK"\n", o_blocks_count,
1070 o_blocks_count + add); 1071 o_blocks_count + add);
1071 ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks); 1072 ext3_free_blocks_sb(handle, sb, o_blocks_count, add, &freed_blocks);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 7ad1e8c30bd0..afa2b569da10 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -1928,6 +1928,8 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
1928 sb->dq_op = &ext3_quota_operations; 1928 sb->dq_op = &ext3_quota_operations;
1929#endif 1929#endif
1930 INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */ 1930 INIT_LIST_HEAD(&sbi->s_orphan); /* unlinked but open files */
1931 mutex_init(&sbi->s_orphan_lock);
1932 mutex_init(&sbi->s_resize_lock);
1931 1933
1932 sb->s_root = NULL; 1934 sb->s_root = NULL;
1933 1935
@@ -2014,14 +2016,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
2014 } 2016 }
2015 2017
2016 ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY); 2018 ext3_setup_super (sb, es, sb->s_flags & MS_RDONLY);
2017 /* 2019
2018 * akpm: core read_super() calls in here with the superblock locked.
2019 * That deadlocks, because orphan cleanup needs to lock the superblock
2020 * in numerous places. Here we just pop the lock - it's relatively
2021 * harmless, because we are now ready to accept write_super() requests,
2022 * and aviro says that's the only reason for hanging onto the
2023 * superblock lock.
2024 */
2025 EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS; 2020 EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
2026 ext3_orphan_cleanup(sb, es); 2021 ext3_orphan_cleanup(sb, es);
2027 EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS; 2022 EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
@@ -2403,13 +2398,11 @@ static void ext3_mark_recovery_complete(struct super_block * sb,
2403 if (journal_flush(journal) < 0) 2398 if (journal_flush(journal) < 0)
2404 goto out; 2399 goto out;
2405 2400
2406 lock_super(sb);
2407 if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) && 2401 if (EXT3_HAS_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER) &&
2408 sb->s_flags & MS_RDONLY) { 2402 sb->s_flags & MS_RDONLY) {
2409 EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER); 2403 EXT3_CLEAR_INCOMPAT_FEATURE(sb, EXT3_FEATURE_INCOMPAT_RECOVER);
2410 ext3_commit_super(sb, es, 1); 2404 ext3_commit_super(sb, es, 1);
2411 } 2405 }
2412 unlock_super(sb);
2413 2406
2414out: 2407out:
2415 journal_unlock_updates(journal); 2408 journal_unlock_updates(journal);
@@ -2601,13 +2594,7 @@ static int ext3_remount (struct super_block * sb, int * flags, char * data)
2601 (sbi->s_mount_state & EXT3_VALID_FS)) 2594 (sbi->s_mount_state & EXT3_VALID_FS))
2602 es->s_state = cpu_to_le16(sbi->s_mount_state); 2595 es->s_state = cpu_to_le16(sbi->s_mount_state);
2603 2596
2604 /*
2605 * We have to unlock super so that we can wait for
2606 * transactions.
2607 */
2608 unlock_super(sb);
2609 ext3_mark_recovery_complete(sb, es); 2597 ext3_mark_recovery_complete(sb, es);
2610 lock_super(sb);
2611 } else { 2598 } else {
2612 __le32 ret; 2599 __le32 ret;
2613 if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb, 2600 if ((ret = EXT3_HAS_RO_COMPAT_FEATURE(sb,
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index ab31e65d46d0..56f9271ee8cc 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -704,6 +704,10 @@ struct ext4_inode_info {
704 __u16 i_extra_isize; 704 __u16 i_extra_isize;
705 705
706 spinlock_t i_block_reservation_lock; 706 spinlock_t i_block_reservation_lock;
707#ifdef CONFIG_QUOTA
708 /* quota space reservation, managed internally by quota code */
709 qsize_t i_reserved_quota;
710#endif
707 711
708 /* completed async DIOs that might need unwritten extents handling */ 712 /* completed async DIOs that might need unwritten extents handling */
709 struct list_head i_aio_dio_complete_list; 713 struct list_head i_aio_dio_complete_list;
@@ -1435,7 +1439,7 @@ extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
1435extern int ext4_block_truncate_page(handle_t *handle, 1439extern int ext4_block_truncate_page(handle_t *handle,
1436 struct address_space *mapping, loff_t from); 1440 struct address_space *mapping, loff_t from);
1437extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf); 1441extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
1438extern qsize_t ext4_get_reserved_space(struct inode *inode); 1442extern qsize_t *ext4_get_reserved_space(struct inode *inode);
1439extern int flush_aio_dio_completed_IO(struct inode *inode); 1443extern int flush_aio_dio_completed_IO(struct inode *inode);
1440/* ioctl.c */ 1444/* ioctl.c */
1441extern long ext4_ioctl(struct file *, unsigned int, unsigned long); 1445extern long ext4_ioctl(struct file *, unsigned int, unsigned long);
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 5352db1a3086..ab807963a614 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -1003,17 +1003,12 @@ out:
1003 return err; 1003 return err;
1004} 1004}
1005 1005
1006qsize_t ext4_get_reserved_space(struct inode *inode) 1006#ifdef CONFIG_QUOTA
1007qsize_t *ext4_get_reserved_space(struct inode *inode)
1007{ 1008{
1008 unsigned long long total; 1009 return &EXT4_I(inode)->i_reserved_quota;
1009
1010 spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
1011 total = EXT4_I(inode)->i_reserved_data_blocks +
1012 EXT4_I(inode)->i_reserved_meta_blocks;
1013 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1014
1015 return (total << inode->i_blkbits);
1016} 1010}
1011#endif
1017/* 1012/*
1018 * Calculate the number of metadata blocks need to reserve 1013 * Calculate the number of metadata blocks need to reserve
1019 * to allocate @blocks for non extent file based file 1014 * to allocate @blocks for non extent file based file
@@ -1051,7 +1046,7 @@ static int ext4_calc_metadata_amount(struct inode *inode, int blocks)
1051static void ext4_da_update_reserve_space(struct inode *inode, int used) 1046static void ext4_da_update_reserve_space(struct inode *inode, int used)
1052{ 1047{
1053 struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb); 1048 struct ext4_sb_info *sbi = EXT4_SB(inode->i_sb);
1054 int total, mdb, mdb_free; 1049 int total, mdb, mdb_free, mdb_claim = 0;
1055 1050
1056 spin_lock(&EXT4_I(inode)->i_block_reservation_lock); 1051 spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
1057 /* recalculate the number of metablocks still need to be reserved */ 1052 /* recalculate the number of metablocks still need to be reserved */
@@ -1064,7 +1059,9 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
1064 1059
1065 if (mdb_free) { 1060 if (mdb_free) {
1066 /* Account for allocated meta_blocks */ 1061 /* Account for allocated meta_blocks */
1067 mdb_free -= EXT4_I(inode)->i_allocated_meta_blocks; 1062 mdb_claim = EXT4_I(inode)->i_allocated_meta_blocks;
1063 BUG_ON(mdb_free < mdb_claim);
1064 mdb_free -= mdb_claim;
1068 1065
1069 /* update fs dirty blocks counter */ 1066 /* update fs dirty blocks counter */
1070 percpu_counter_sub(&sbi->s_dirtyblocks_counter, mdb_free); 1067 percpu_counter_sub(&sbi->s_dirtyblocks_counter, mdb_free);
@@ -1075,8 +1072,11 @@ static void ext4_da_update_reserve_space(struct inode *inode, int used)
1075 /* update per-inode reservations */ 1072 /* update per-inode reservations */
1076 BUG_ON(used > EXT4_I(inode)->i_reserved_data_blocks); 1073 BUG_ON(used > EXT4_I(inode)->i_reserved_data_blocks);
1077 EXT4_I(inode)->i_reserved_data_blocks -= used; 1074 EXT4_I(inode)->i_reserved_data_blocks -= used;
1075 percpu_counter_sub(&sbi->s_dirtyblocks_counter, used + mdb_claim);
1078 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); 1076 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1079 1077
1078 vfs_dq_claim_block(inode, used + mdb_claim);
1079
1080 /* 1080 /*
1081 * free those over-booking quota for metadata blocks 1081 * free those over-booking quota for metadata blocks
1082 */ 1082 */
@@ -1816,19 +1816,17 @@ repeat:
1816 1816
1817 md_needed = mdblocks - EXT4_I(inode)->i_reserved_meta_blocks; 1817 md_needed = mdblocks - EXT4_I(inode)->i_reserved_meta_blocks;
1818 total = md_needed + nrblocks; 1818 total = md_needed + nrblocks;
1819 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1819 1820
1820 /* 1821 /*
1821 * Make quota reservation here to prevent quota overflow 1822 * Make quota reservation here to prevent quota overflow
1822 * later. Real quota accounting is done at pages writeout 1823 * later. Real quota accounting is done at pages writeout
1823 * time. 1824 * time.
1824 */ 1825 */
1825 if (vfs_dq_reserve_block(inode, total)) { 1826 if (vfs_dq_reserve_block(inode, total))
1826 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1827 return -EDQUOT; 1827 return -EDQUOT;
1828 }
1829 1828
1830 if (ext4_claim_free_blocks(sbi, total)) { 1829 if (ext4_claim_free_blocks(sbi, total)) {
1831 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1832 vfs_dq_release_reservation_block(inode, total); 1830 vfs_dq_release_reservation_block(inode, total);
1833 if (ext4_should_retry_alloc(inode->i_sb, &retries)) { 1831 if (ext4_should_retry_alloc(inode->i_sb, &retries)) {
1834 yield(); 1832 yield();
@@ -1836,10 +1834,11 @@ repeat:
1836 } 1834 }
1837 return -ENOSPC; 1835 return -ENOSPC;
1838 } 1836 }
1837 spin_lock(&EXT4_I(inode)->i_block_reservation_lock);
1839 EXT4_I(inode)->i_reserved_data_blocks += nrblocks; 1838 EXT4_I(inode)->i_reserved_data_blocks += nrblocks;
1840 EXT4_I(inode)->i_reserved_meta_blocks = mdblocks; 1839 EXT4_I(inode)->i_reserved_meta_blocks += md_needed;
1841
1842 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock); 1840 spin_unlock(&EXT4_I(inode)->i_block_reservation_lock);
1841
1843 return 0; /* success */ 1842 return 0; /* success */
1844} 1843}
1845 1844
@@ -4794,6 +4793,9 @@ struct inode *ext4_iget(struct super_block *sb, unsigned long ino)
4794 ((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32; 4793 ((__u64)le16_to_cpu(raw_inode->i_file_acl_high)) << 32;
4795 inode->i_size = ext4_isize(raw_inode); 4794 inode->i_size = ext4_isize(raw_inode);
4796 ei->i_disksize = inode->i_size; 4795 ei->i_disksize = inode->i_size;
4796#ifdef CONFIG_QUOTA
4797 ei->i_reserved_quota = 0;
4798#endif
4797 inode->i_generation = le32_to_cpu(raw_inode->i_generation); 4799 inode->i_generation = le32_to_cpu(raw_inode->i_generation);
4798 ei->i_block_group = iloc.block_group; 4800 ei->i_block_group = iloc.block_group;
4799 ei->i_last_alloc_group = ~0; 4801 ei->i_last_alloc_group = ~0;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index b1fd3daadc9c..d34afad3e137 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -2755,12 +2755,6 @@ ext4_mb_mark_diskspace_used(struct ext4_allocation_context *ac,
2755 if (!(ac->ac_flags & EXT4_MB_DELALLOC_RESERVED)) 2755 if (!(ac->ac_flags & EXT4_MB_DELALLOC_RESERVED))
2756 /* release all the reserved blocks if non delalloc */ 2756 /* release all the reserved blocks if non delalloc */
2757 percpu_counter_sub(&sbi->s_dirtyblocks_counter, reserv_blks); 2757 percpu_counter_sub(&sbi->s_dirtyblocks_counter, reserv_blks);
2758 else {
2759 percpu_counter_sub(&sbi->s_dirtyblocks_counter,
2760 ac->ac_b_ex.fe_len);
2761 /* convert reserved quota blocks to real quota blocks */
2762 vfs_dq_claim_block(ac->ac_inode, ac->ac_b_ex.fe_len);
2763 }
2764 2758
2765 if (sbi->s_log_groups_per_flex) { 2759 if (sbi->s_log_groups_per_flex) {
2766 ext4_group_t flex_group = ext4_flex_group(sbi, 2760 ext4_group_t flex_group = ext4_flex_group(sbi,
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 827bde1f2594..6ed9aa91f27d 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -704,6 +704,9 @@ static struct inode *ext4_alloc_inode(struct super_block *sb)
704 ei->i_allocated_meta_blocks = 0; 704 ei->i_allocated_meta_blocks = 0;
705 ei->i_delalloc_reserved_flag = 0; 705 ei->i_delalloc_reserved_flag = 0;
706 spin_lock_init(&(ei->i_block_reservation_lock)); 706 spin_lock_init(&(ei->i_block_reservation_lock));
707#ifdef CONFIG_QUOTA
708 ei->i_reserved_quota = 0;
709#endif
707 INIT_LIST_HEAD(&ei->i_aio_dio_complete_list); 710 INIT_LIST_HEAD(&ei->i_aio_dio_complete_list);
708 ei->cur_aio_dio = NULL; 711 ei->cur_aio_dio = NULL;
709 ei->i_sync_tid = 0; 712 ei->i_sync_tid = 0;
@@ -1014,7 +1017,9 @@ static const struct dquot_operations ext4_quota_operations = {
1014 .reserve_space = dquot_reserve_space, 1017 .reserve_space = dquot_reserve_space,
1015 .claim_space = dquot_claim_space, 1018 .claim_space = dquot_claim_space,
1016 .release_rsv = dquot_release_reserved_space, 1019 .release_rsv = dquot_release_reserved_space,
1020#ifdef CONFIG_QUOTA
1017 .get_reserved_space = ext4_get_reserved_space, 1021 .get_reserved_space = ext4_get_reserved_space,
1022#endif
1018 .alloc_inode = dquot_alloc_inode, 1023 .alloc_inode = dquot_alloc_inode,
1019 .free_space = dquot_free_space, 1024 .free_space = dquot_free_space,
1020 .free_inode = dquot_free_inode, 1025 .free_inode = dquot_free_inode,
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 4160afad6d00..bd224eec9b07 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1913,7 +1913,7 @@ static void __init jbd_create_debugfs_entry(void)
1913{ 1913{
1914 jbd_debugfs_dir = debugfs_create_dir("jbd", NULL); 1914 jbd_debugfs_dir = debugfs_create_dir("jbd", NULL);
1915 if (jbd_debugfs_dir) 1915 if (jbd_debugfs_dir)
1916 jbd_debug = debugfs_create_u8("jbd-debug", S_IRUGO, 1916 jbd_debug = debugfs_create_u8("jbd-debug", S_IRUGO | S_IWUSR,
1917 jbd_debugfs_dir, 1917 jbd_debugfs_dir,
1918 &journal_enable_debug); 1918 &journal_enable_debug);
1919} 1919}
diff --git a/fs/jbd2/journal.c b/fs/jbd2/journal.c
index b7ca3a92a4db..17af879e6e9e 100644
--- a/fs/jbd2/journal.c
+++ b/fs/jbd2/journal.c
@@ -2115,7 +2115,8 @@ static void __init jbd2_create_debugfs_entry(void)
2115{ 2115{
2116 jbd2_debugfs_dir = debugfs_create_dir("jbd2", NULL); 2116 jbd2_debugfs_dir = debugfs_create_dir("jbd2", NULL);
2117 if (jbd2_debugfs_dir) 2117 if (jbd2_debugfs_dir)
2118 jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME, S_IRUGO, 2118 jbd2_debug = debugfs_create_u8(JBD2_DEBUG_NAME,
2119 S_IRUGO | S_IWUSR,
2119 jbd2_debugfs_dir, 2120 jbd2_debugfs_dir,
2120 &jbd2_journal_enable_debug); 2121 &jbd2_journal_enable_debug);
2121} 2122}
diff --git a/fs/ocfs2/alloc.c b/fs/ocfs2/alloc.c
index fb4e672579b8..d17bdc718f74 100644
--- a/fs/ocfs2/alloc.c
+++ b/fs/ocfs2/alloc.c
@@ -1765,9 +1765,9 @@ set_and_inc:
1765 * 1765 *
1766 * The array index of the subtree root is passed back. 1766 * The array index of the subtree root is passed back.
1767 */ 1767 */
1768static int ocfs2_find_subtree_root(struct ocfs2_extent_tree *et, 1768int ocfs2_find_subtree_root(struct ocfs2_extent_tree *et,
1769 struct ocfs2_path *left, 1769 struct ocfs2_path *left,
1770 struct ocfs2_path *right) 1770 struct ocfs2_path *right)
1771{ 1771{
1772 int i = 0; 1772 int i = 0;
1773 1773
@@ -2872,8 +2872,8 @@ out:
2872 * This looks similar, but is subtly different to 2872 * This looks similar, but is subtly different to
2873 * ocfs2_find_cpos_for_left_leaf(). 2873 * ocfs2_find_cpos_for_left_leaf().
2874 */ 2874 */
2875static int ocfs2_find_cpos_for_right_leaf(struct super_block *sb, 2875int ocfs2_find_cpos_for_right_leaf(struct super_block *sb,
2876 struct ocfs2_path *path, u32 *cpos) 2876 struct ocfs2_path *path, u32 *cpos)
2877{ 2877{
2878 int i, j, ret = 0; 2878 int i, j, ret = 0;
2879 u64 blkno; 2879 u64 blkno;
diff --git a/fs/ocfs2/alloc.h b/fs/ocfs2/alloc.h
index 9c122d574464..1db4359ccb90 100644
--- a/fs/ocfs2/alloc.h
+++ b/fs/ocfs2/alloc.h
@@ -317,4 +317,9 @@ int ocfs2_path_bh_journal_access(handle_t *handle,
317int ocfs2_journal_access_path(struct ocfs2_caching_info *ci, 317int ocfs2_journal_access_path(struct ocfs2_caching_info *ci,
318 handle_t *handle, 318 handle_t *handle,
319 struct ocfs2_path *path); 319 struct ocfs2_path *path);
320int ocfs2_find_cpos_for_right_leaf(struct super_block *sb,
321 struct ocfs2_path *path, u32 *cpos);
322int ocfs2_find_subtree_root(struct ocfs2_extent_tree *et,
323 struct ocfs2_path *left,
324 struct ocfs2_path *right);
320#endif /* OCFS2_ALLOC_H */ 325#endif /* OCFS2_ALLOC_H */
diff --git a/fs/ocfs2/namei.c b/fs/ocfs2/namei.c
index f010b22b1c44..3e9b46002f22 100644
--- a/fs/ocfs2/namei.c
+++ b/fs/ocfs2/namei.c
@@ -2108,6 +2108,7 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
2108 } 2108 }
2109 did_quota_inode = 1; 2109 did_quota_inode = 1;
2110 2110
2111 inode->i_nlink = 0;
2111 /* do the real work now. */ 2112 /* do the real work now. */
2112 status = ocfs2_mknod_locked(osb, dir, inode, 2113 status = ocfs2_mknod_locked(osb, dir, inode,
2113 0, &new_di_bh, parent_di_bh, handle, 2114 0, &new_di_bh, parent_di_bh, handle,
@@ -2136,6 +2137,7 @@ int ocfs2_create_inode_in_orphan(struct inode *dir,
2136 if (status < 0) 2137 if (status < 0)
2137 mlog_errno(status); 2138 mlog_errno(status);
2138 2139
2140 insert_inode_hash(inode);
2139leave: 2141leave:
2140 if (status < 0 && did_quota_inode) 2142 if (status < 0 && did_quota_inode)
2141 vfs_dq_free_inode(inode); 2143 vfs_dq_free_inode(inode);
@@ -2267,6 +2269,8 @@ int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
2267 di = (struct ocfs2_dinode *)di_bh->b_data; 2269 di = (struct ocfs2_dinode *)di_bh->b_data;
2268 le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL); 2270 le32_add_cpu(&di->i_flags, -OCFS2_ORPHANED_FL);
2269 di->i_orphaned_slot = 0; 2271 di->i_orphaned_slot = 0;
2272 inode->i_nlink = 1;
2273 ocfs2_set_links_count(di, inode->i_nlink);
2270 ocfs2_journal_dirty(handle, di_bh); 2274 ocfs2_journal_dirty(handle, di_bh);
2271 2275
2272 status = ocfs2_add_entry(handle, dentry, inode, 2276 status = ocfs2_add_entry(handle, dentry, inode,
@@ -2284,7 +2288,6 @@ int ocfs2_mv_orphaned_inode_to_new(struct inode *dir,
2284 goto out_commit; 2288 goto out_commit;
2285 } 2289 }
2286 2290
2287 insert_inode_hash(inode);
2288 dentry->d_op = &ocfs2_dentry_ops; 2291 dentry->d_op = &ocfs2_dentry_ops;
2289 d_instantiate(dentry, inode); 2292 d_instantiate(dentry, inode);
2290 status = 0; 2293 status = 0;
diff --git a/fs/ocfs2/refcounttree.c b/fs/ocfs2/refcounttree.c
index 30967e3f5e43..74db2be75dd6 100644
--- a/fs/ocfs2/refcounttree.c
+++ b/fs/ocfs2/refcounttree.c
@@ -276,7 +276,7 @@ static void ocfs2_erase_refcount_tree_from_list(struct ocfs2_super *osb,
276 spin_unlock(&osb->osb_lock); 276 spin_unlock(&osb->osb_lock);
277} 277}
278 278
279void ocfs2_kref_remove_refcount_tree(struct kref *kref) 279static void ocfs2_kref_remove_refcount_tree(struct kref *kref)
280{ 280{
281 struct ocfs2_refcount_tree *tree = 281 struct ocfs2_refcount_tree *tree =
282 container_of(kref, struct ocfs2_refcount_tree, rf_getcnt); 282 container_of(kref, struct ocfs2_refcount_tree, rf_getcnt);
@@ -524,23 +524,6 @@ out:
524 return ret; 524 return ret;
525} 525}
526 526
527int ocfs2_lock_refcount_tree_by_inode(struct inode *inode, int rw,
528 struct ocfs2_refcount_tree **ret_tree,
529 struct buffer_head **ref_bh)
530{
531 int ret;
532 u64 ref_blkno;
533
534 ret = ocfs2_get_refcount_block(inode, &ref_blkno);
535 if (ret) {
536 mlog_errno(ret);
537 return ret;
538 }
539
540 return ocfs2_lock_refcount_tree(OCFS2_SB(inode->i_sb), ref_blkno,
541 rw, ret_tree, ref_bh);
542}
543
544void ocfs2_unlock_refcount_tree(struct ocfs2_super *osb, 527void ocfs2_unlock_refcount_tree(struct ocfs2_super *osb,
545 struct ocfs2_refcount_tree *tree, int rw) 528 struct ocfs2_refcount_tree *tree, int rw)
546{ 529{
@@ -969,6 +952,103 @@ out:
969} 952}
970 953
971/* 954/*
955 * Find the end range for a leaf refcount block indicated by
956 * el->l_recs[index].e_blkno.
957 */
958static int ocfs2_get_refcount_cpos_end(struct ocfs2_caching_info *ci,
959 struct buffer_head *ref_root_bh,
960 struct ocfs2_extent_block *eb,
961 struct ocfs2_extent_list *el,
962 int index, u32 *cpos_end)
963{
964 int ret, i, subtree_root;
965 u32 cpos;
966 u64 blkno;
967 struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
968 struct ocfs2_path *left_path = NULL, *right_path = NULL;
969 struct ocfs2_extent_tree et;
970 struct ocfs2_extent_list *tmp_el;
971
972 if (index < le16_to_cpu(el->l_next_free_rec) - 1) {
973 /*
974 * We have a extent rec after index, so just use the e_cpos
975 * of the next extent rec.
976 */
977 *cpos_end = le32_to_cpu(el->l_recs[index+1].e_cpos);
978 return 0;
979 }
980
981 if (!eb || (eb && !eb->h_next_leaf_blk)) {
982 /*
983 * We are the last extent rec, so any high cpos should
984 * be stored in this leaf refcount block.
985 */
986 *cpos_end = UINT_MAX;
987 return 0;
988 }
989
990 /*
991 * If the extent block isn't the last one, we have to find
992 * the subtree root between this extent block and the next
993 * leaf extent block and get the corresponding e_cpos from
994 * the subroot. Otherwise we may corrupt the b-tree.
995 */
996 ocfs2_init_refcount_extent_tree(&et, ci, ref_root_bh);
997
998 left_path = ocfs2_new_path_from_et(&et);
999 if (!left_path) {
1000 ret = -ENOMEM;
1001 mlog_errno(ret);
1002 goto out;
1003 }
1004
1005 cpos = le32_to_cpu(eb->h_list.l_recs[index].e_cpos);
1006 ret = ocfs2_find_path(ci, left_path, cpos);
1007 if (ret) {
1008 mlog_errno(ret);
1009 goto out;
1010 }
1011
1012 right_path = ocfs2_new_path_from_path(left_path);
1013 if (!right_path) {
1014 ret = -ENOMEM;
1015 mlog_errno(ret);
1016 goto out;
1017 }
1018
1019 ret = ocfs2_find_cpos_for_right_leaf(sb, left_path, &cpos);
1020 if (ret) {
1021 mlog_errno(ret);
1022 goto out;
1023 }
1024
1025 ret = ocfs2_find_path(ci, right_path, cpos);
1026 if (ret) {
1027 mlog_errno(ret);
1028 goto out;
1029 }
1030
1031 subtree_root = ocfs2_find_subtree_root(&et, left_path,
1032 right_path);
1033
1034 tmp_el = left_path->p_node[subtree_root].el;
1035 blkno = left_path->p_node[subtree_root+1].bh->b_blocknr;
1036 for (i = 0; i < le32_to_cpu(tmp_el->l_next_free_rec); i++) {
1037 if (le64_to_cpu(tmp_el->l_recs[i].e_blkno) == blkno) {
1038 *cpos_end = le32_to_cpu(tmp_el->l_recs[i+1].e_cpos);
1039 break;
1040 }
1041 }
1042
1043 BUG_ON(i == le32_to_cpu(tmp_el->l_next_free_rec));
1044
1045out:
1046 ocfs2_free_path(left_path);
1047 ocfs2_free_path(right_path);
1048 return ret;
1049}
1050
1051/*
972 * Given a cpos and len, try to find the refcount record which contains cpos. 1052 * Given a cpos and len, try to find the refcount record which contains cpos.
973 * 1. If cpos can be found in one refcount record, return the record. 1053 * 1. If cpos can be found in one refcount record, return the record.
974 * 2. If cpos can't be found, return a fake record which start from cpos 1054 * 2. If cpos can't be found, return a fake record which start from cpos
@@ -983,10 +1063,10 @@ static int ocfs2_get_refcount_rec(struct ocfs2_caching_info *ci,
983 struct buffer_head **ret_bh) 1063 struct buffer_head **ret_bh)
984{ 1064{
985 int ret = 0, i, found; 1065 int ret = 0, i, found;
986 u32 low_cpos; 1066 u32 low_cpos, uninitialized_var(cpos_end);
987 struct ocfs2_extent_list *el; 1067 struct ocfs2_extent_list *el;
988 struct ocfs2_extent_rec *tmp, *rec = NULL; 1068 struct ocfs2_extent_rec *rec = NULL;
989 struct ocfs2_extent_block *eb; 1069 struct ocfs2_extent_block *eb = NULL;
990 struct buffer_head *eb_bh = NULL, *ref_leaf_bh = NULL; 1070 struct buffer_head *eb_bh = NULL, *ref_leaf_bh = NULL;
991 struct super_block *sb = ocfs2_metadata_cache_get_super(ci); 1071 struct super_block *sb = ocfs2_metadata_cache_get_super(ci);
992 struct ocfs2_refcount_block *rb = 1072 struct ocfs2_refcount_block *rb =
@@ -1034,12 +1114,16 @@ static int ocfs2_get_refcount_rec(struct ocfs2_caching_info *ci,
1034 } 1114 }
1035 } 1115 }
1036 1116
1037 /* adjust len when we have ocfs2_extent_rec after it. */ 1117 if (found) {
1038 if (found && i < le16_to_cpu(el->l_next_free_rec) - 1) { 1118 ret = ocfs2_get_refcount_cpos_end(ci, ref_root_bh,
1039 tmp = &el->l_recs[i+1]; 1119 eb, el, i, &cpos_end);
1120 if (ret) {
1121 mlog_errno(ret);
1122 goto out;
1123 }
1040 1124
1041 if (le32_to_cpu(tmp->e_cpos) < cpos + len) 1125 if (cpos_end < low_cpos + len)
1042 len = le32_to_cpu(tmp->e_cpos) - cpos; 1126 len = cpos_end - low_cpos;
1043 } 1127 }
1044 1128
1045 ret = ocfs2_read_refcount_block(ci, le64_to_cpu(rec->e_blkno), 1129 ret = ocfs2_read_refcount_block(ci, le64_to_cpu(rec->e_blkno),
@@ -1418,7 +1502,7 @@ static int ocfs2_divide_leaf_refcount_block(struct buffer_head *ref_leaf_bh,
1418 1502
1419 /* change old and new rl_used accordingly. */ 1503 /* change old and new rl_used accordingly. */
1420 le16_add_cpu(&rl->rl_used, -num_moved); 1504 le16_add_cpu(&rl->rl_used, -num_moved);
1421 new_rl->rl_used = cpu_to_le32(num_moved); 1505 new_rl->rl_used = cpu_to_le16(num_moved);
1422 1506
1423 sort(&rl->rl_recs, le16_to_cpu(rl->rl_used), 1507 sort(&rl->rl_recs, le16_to_cpu(rl->rl_used),
1424 sizeof(struct ocfs2_refcount_rec), 1508 sizeof(struct ocfs2_refcount_rec),
@@ -1797,7 +1881,8 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
1797 recs_need++; 1881 recs_need++;
1798 1882
1799 /* If the leaf block don't have enough record, expand it. */ 1883 /* If the leaf block don't have enough record, expand it. */
1800 if (le16_to_cpu(rf_list->rl_used) + recs_need > rf_list->rl_count) { 1884 if (le16_to_cpu(rf_list->rl_used) + recs_need >
1885 le16_to_cpu(rf_list->rl_count)) {
1801 struct ocfs2_refcount_rec tmp_rec; 1886 struct ocfs2_refcount_rec tmp_rec;
1802 u64 cpos = le64_to_cpu(orig_rec->r_cpos); 1887 u64 cpos = le64_to_cpu(orig_rec->r_cpos);
1803 len = le32_to_cpu(orig_rec->r_clusters); 1888 len = le32_to_cpu(orig_rec->r_clusters);
@@ -1859,7 +1944,7 @@ static int ocfs2_split_refcount_rec(handle_t *handle,
1859 memcpy(tail_rec, orig_rec, sizeof(struct ocfs2_refcount_rec)); 1944 memcpy(tail_rec, orig_rec, sizeof(struct ocfs2_refcount_rec));
1860 le64_add_cpu(&tail_rec->r_cpos, 1945 le64_add_cpu(&tail_rec->r_cpos,
1861 le32_to_cpu(tail_rec->r_clusters) - len); 1946 le32_to_cpu(tail_rec->r_clusters) - len);
1862 tail_rec->r_clusters = le32_to_cpu(len); 1947 tail_rec->r_clusters = cpu_to_le32(len);
1863 } 1948 }
1864 1949
1865 /* 1950 /*
@@ -3840,8 +3925,7 @@ static int ocfs2_add_refcounted_extent(struct inode *inode,
3840 } 3925 }
3841 3926
3842 ret = ocfs2_insert_extent(handle, et, cpos, 3927 ret = ocfs2_insert_extent(handle, et, cpos,
3843 cpu_to_le64(ocfs2_clusters_to_blocks(inode->i_sb, 3928 ocfs2_clusters_to_blocks(inode->i_sb, p_cluster),
3844 p_cluster)),
3845 num_clusters, ext_flags, meta_ac); 3929 num_clusters, ext_flags, meta_ac);
3846 if (ret) { 3930 if (ret) {
3847 mlog_errno(ret); 3931 mlog_errno(ret);
@@ -4253,8 +4337,8 @@ static int ocfs2_user_path_parent(const char __user *path,
4253 * @new_dentry: target dentry 4337 * @new_dentry: target dentry
4254 * @preserve: if true, preserve all file attributes 4338 * @preserve: if true, preserve all file attributes
4255 */ 4339 */
4256int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir, 4340static int ocfs2_vfs_reflink(struct dentry *old_dentry, struct inode *dir,
4257 struct dentry *new_dentry, bool preserve) 4341 struct dentry *new_dentry, bool preserve)
4258{ 4342{
4259 struct inode *inode = old_dentry->d_inode; 4343 struct inode *inode = old_dentry->d_inode;
4260 int error; 4344 int error;
diff --git a/fs/quota/dquot.c b/fs/quota/dquot.c
index cd6bb9a33c13..dea86abdf2e7 100644
--- a/fs/quota/dquot.c
+++ b/fs/quota/dquot.c
@@ -323,6 +323,30 @@ int dquot_mark_dquot_dirty(struct dquot *dquot)
323} 323}
324EXPORT_SYMBOL(dquot_mark_dquot_dirty); 324EXPORT_SYMBOL(dquot_mark_dquot_dirty);
325 325
326/* Dirtify all the dquots - this can block when journalling */
327static inline int mark_all_dquot_dirty(struct dquot * const *dquot)
328{
329 int ret, err, cnt;
330
331 ret = err = 0;
332 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
333 if (dquot[cnt])
334 /* Even in case of error we have to continue */
335 ret = mark_dquot_dirty(dquot[cnt]);
336 if (!err)
337 err = ret;
338 }
339 return err;
340}
341
342static inline void dqput_all(struct dquot **dquot)
343{
344 unsigned int cnt;
345
346 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
347 dqput(dquot[cnt]);
348}
349
326/* This function needs dq_list_lock */ 350/* This function needs dq_list_lock */
327static inline int clear_dquot_dirty(struct dquot *dquot) 351static inline int clear_dquot_dirty(struct dquot *dquot)
328{ 352{
@@ -1268,8 +1292,7 @@ int dquot_initialize(struct inode *inode, int type)
1268out_err: 1292out_err:
1269 up_write(&sb_dqopt(sb)->dqptr_sem); 1293 up_write(&sb_dqopt(sb)->dqptr_sem);
1270 /* Drop unused references */ 1294 /* Drop unused references */
1271 for (cnt = 0; cnt < MAXQUOTAS; cnt++) 1295 dqput_all(got);
1272 dqput(got[cnt]);
1273 return ret; 1296 return ret;
1274} 1297}
1275EXPORT_SYMBOL(dquot_initialize); 1298EXPORT_SYMBOL(dquot_initialize);
@@ -1288,9 +1311,7 @@ int dquot_drop(struct inode *inode)
1288 inode->i_dquot[cnt] = NULL; 1311 inode->i_dquot[cnt] = NULL;
1289 } 1312 }
1290 up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); 1313 up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
1291 1314 dqput_all(put);
1292 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1293 dqput(put[cnt]);
1294 return 0; 1315 return 0;
1295} 1316}
1296EXPORT_SYMBOL(dquot_drop); 1317EXPORT_SYMBOL(dquot_drop);
@@ -1319,6 +1340,67 @@ void vfs_dq_drop(struct inode *inode)
1319EXPORT_SYMBOL(vfs_dq_drop); 1340EXPORT_SYMBOL(vfs_dq_drop);
1320 1341
1321/* 1342/*
1343 * inode_reserved_space is managed internally by quota, and protected by
1344 * i_lock similar to i_blocks+i_bytes.
1345 */
1346static qsize_t *inode_reserved_space(struct inode * inode)
1347{
1348 /* Filesystem must explicitly define it's own method in order to use
1349 * quota reservation interface */
1350 BUG_ON(!inode->i_sb->dq_op->get_reserved_space);
1351 return inode->i_sb->dq_op->get_reserved_space(inode);
1352}
1353
1354static void inode_add_rsv_space(struct inode *inode, qsize_t number)
1355{
1356 spin_lock(&inode->i_lock);
1357 *inode_reserved_space(inode) += number;
1358 spin_unlock(&inode->i_lock);
1359}
1360
1361
1362static void inode_claim_rsv_space(struct inode *inode, qsize_t number)
1363{
1364 spin_lock(&inode->i_lock);
1365 *inode_reserved_space(inode) -= number;
1366 __inode_add_bytes(inode, number);
1367 spin_unlock(&inode->i_lock);
1368}
1369
1370static void inode_sub_rsv_space(struct inode *inode, qsize_t number)
1371{
1372 spin_lock(&inode->i_lock);
1373 *inode_reserved_space(inode) -= number;
1374 spin_unlock(&inode->i_lock);
1375}
1376
1377static qsize_t inode_get_rsv_space(struct inode *inode)
1378{
1379 qsize_t ret;
1380 spin_lock(&inode->i_lock);
1381 ret = *inode_reserved_space(inode);
1382 spin_unlock(&inode->i_lock);
1383 return ret;
1384}
1385
1386static void inode_incr_space(struct inode *inode, qsize_t number,
1387 int reserve)
1388{
1389 if (reserve)
1390 inode_add_rsv_space(inode, number);
1391 else
1392 inode_add_bytes(inode, number);
1393}
1394
1395static void inode_decr_space(struct inode *inode, qsize_t number, int reserve)
1396{
1397 if (reserve)
1398 inode_sub_rsv_space(inode, number);
1399 else
1400 inode_sub_bytes(inode, number);
1401}
1402
1403/*
1322 * Following four functions update i_blocks+i_bytes fields and 1404 * Following four functions update i_blocks+i_bytes fields and
1323 * quota information (together with appropriate checks) 1405 * quota information (together with appropriate checks)
1324 * NOTE: We absolutely rely on the fact that caller dirties 1406 * NOTE: We absolutely rely on the fact that caller dirties
@@ -1336,6 +1418,21 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number,
1336 int cnt, ret = QUOTA_OK; 1418 int cnt, ret = QUOTA_OK;
1337 char warntype[MAXQUOTAS]; 1419 char warntype[MAXQUOTAS];
1338 1420
1421 /*
1422 * First test before acquiring mutex - solves deadlocks when we
1423 * re-enter the quota code and are already holding the mutex
1424 */
1425 if (IS_NOQUOTA(inode)) {
1426 inode_incr_space(inode, number, reserve);
1427 goto out;
1428 }
1429
1430 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1431 if (IS_NOQUOTA(inode)) {
1432 inode_incr_space(inode, number, reserve);
1433 goto out_unlock;
1434 }
1435
1339 for (cnt = 0; cnt < MAXQUOTAS; cnt++) 1436 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1340 warntype[cnt] = QUOTA_NL_NOWARN; 1437 warntype[cnt] = QUOTA_NL_NOWARN;
1341 1438
@@ -1346,7 +1443,8 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number,
1346 if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt) 1443 if (check_bdq(inode->i_dquot[cnt], number, warn, warntype+cnt)
1347 == NO_QUOTA) { 1444 == NO_QUOTA) {
1348 ret = NO_QUOTA; 1445 ret = NO_QUOTA;
1349 goto out_unlock; 1446 spin_unlock(&dq_data_lock);
1447 goto out_flush_warn;
1350 } 1448 }
1351 } 1449 }
1352 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1450 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -1357,64 +1455,29 @@ int __dquot_alloc_space(struct inode *inode, qsize_t number,
1357 else 1455 else
1358 dquot_incr_space(inode->i_dquot[cnt], number); 1456 dquot_incr_space(inode->i_dquot[cnt], number);
1359 } 1457 }
1360 if (!reserve) 1458 inode_incr_space(inode, number, reserve);
1361 inode_add_bytes(inode, number);
1362out_unlock:
1363 spin_unlock(&dq_data_lock); 1459 spin_unlock(&dq_data_lock);
1460
1461 if (reserve)
1462 goto out_flush_warn;
1463 mark_all_dquot_dirty(inode->i_dquot);
1464out_flush_warn:
1364 flush_warnings(inode->i_dquot, warntype); 1465 flush_warnings(inode->i_dquot, warntype);
1466out_unlock:
1467 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1468out:
1365 return ret; 1469 return ret;
1366} 1470}
1367 1471
1368int dquot_alloc_space(struct inode *inode, qsize_t number, int warn) 1472int dquot_alloc_space(struct inode *inode, qsize_t number, int warn)
1369{ 1473{
1370 int cnt, ret = QUOTA_OK; 1474 return __dquot_alloc_space(inode, number, warn, 0);
1371
1372 /*
1373 * First test before acquiring mutex - solves deadlocks when we
1374 * re-enter the quota code and are already holding the mutex
1375 */
1376 if (IS_NOQUOTA(inode)) {
1377 inode_add_bytes(inode, number);
1378 goto out;
1379 }
1380
1381 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1382 if (IS_NOQUOTA(inode)) {
1383 inode_add_bytes(inode, number);
1384 goto out_unlock;
1385 }
1386
1387 ret = __dquot_alloc_space(inode, number, warn, 0);
1388 if (ret == NO_QUOTA)
1389 goto out_unlock;
1390
1391 /* Dirtify all the dquots - this can block when journalling */
1392 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1393 if (inode->i_dquot[cnt])
1394 mark_dquot_dirty(inode->i_dquot[cnt]);
1395out_unlock:
1396 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1397out:
1398 return ret;
1399} 1475}
1400EXPORT_SYMBOL(dquot_alloc_space); 1476EXPORT_SYMBOL(dquot_alloc_space);
1401 1477
1402int dquot_reserve_space(struct inode *inode, qsize_t number, int warn) 1478int dquot_reserve_space(struct inode *inode, qsize_t number, int warn)
1403{ 1479{
1404 int ret = QUOTA_OK; 1480 return __dquot_alloc_space(inode, number, warn, 1);
1405
1406 if (IS_NOQUOTA(inode))
1407 goto out;
1408
1409 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1410 if (IS_NOQUOTA(inode))
1411 goto out_unlock;
1412
1413 ret = __dquot_alloc_space(inode, number, warn, 1);
1414out_unlock:
1415 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1416out:
1417 return ret;
1418} 1481}
1419EXPORT_SYMBOL(dquot_reserve_space); 1482EXPORT_SYMBOL(dquot_reserve_space);
1420 1483
@@ -1455,10 +1518,7 @@ int dquot_alloc_inode(const struct inode *inode, qsize_t number)
1455warn_put_all: 1518warn_put_all:
1456 spin_unlock(&dq_data_lock); 1519 spin_unlock(&dq_data_lock);
1457 if (ret == QUOTA_OK) 1520 if (ret == QUOTA_OK)
1458 /* Dirtify all the dquots - this can block when journalling */ 1521 mark_all_dquot_dirty(inode->i_dquot);
1459 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1460 if (inode->i_dquot[cnt])
1461 mark_dquot_dirty(inode->i_dquot[cnt]);
1462 flush_warnings(inode->i_dquot, warntype); 1522 flush_warnings(inode->i_dquot, warntype);
1463 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1523 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1464 return ret; 1524 return ret;
@@ -1471,14 +1531,14 @@ int dquot_claim_space(struct inode *inode, qsize_t number)
1471 int ret = QUOTA_OK; 1531 int ret = QUOTA_OK;
1472 1532
1473 if (IS_NOQUOTA(inode)) { 1533 if (IS_NOQUOTA(inode)) {
1474 inode_add_bytes(inode, number); 1534 inode_claim_rsv_space(inode, number);
1475 goto out; 1535 goto out;
1476 } 1536 }
1477 1537
1478 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1538 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1479 if (IS_NOQUOTA(inode)) { 1539 if (IS_NOQUOTA(inode)) {
1480 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1540 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1481 inode_add_bytes(inode, number); 1541 inode_claim_rsv_space(inode, number);
1482 goto out; 1542 goto out;
1483 } 1543 }
1484 1544
@@ -1490,12 +1550,9 @@ int dquot_claim_space(struct inode *inode, qsize_t number)
1490 number); 1550 number);
1491 } 1551 }
1492 /* Update inode bytes */ 1552 /* Update inode bytes */
1493 inode_add_bytes(inode, number); 1553 inode_claim_rsv_space(inode, number);
1494 spin_unlock(&dq_data_lock); 1554 spin_unlock(&dq_data_lock);
1495 /* Dirtify all the dquots - this can block when journalling */ 1555 mark_all_dquot_dirty(inode->i_dquot);
1496 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1497 if (inode->i_dquot[cnt])
1498 mark_dquot_dirty(inode->i_dquot[cnt]);
1499 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1556 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1500out: 1557out:
1501 return ret; 1558 return ret;
@@ -1503,38 +1560,9 @@ out:
1503EXPORT_SYMBOL(dquot_claim_space); 1560EXPORT_SYMBOL(dquot_claim_space);
1504 1561
1505/* 1562/*
1506 * Release reserved quota space
1507 */
1508void dquot_release_reserved_space(struct inode *inode, qsize_t number)
1509{
1510 int cnt;
1511
1512 if (IS_NOQUOTA(inode))
1513 goto out;
1514
1515 down_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1516 if (IS_NOQUOTA(inode))
1517 goto out_unlock;
1518
1519 spin_lock(&dq_data_lock);
1520 /* Release reserved dquots */
1521 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
1522 if (inode->i_dquot[cnt])
1523 dquot_free_reserved_space(inode->i_dquot[cnt], number);
1524 }
1525 spin_unlock(&dq_data_lock);
1526
1527out_unlock:
1528 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1529out:
1530 return;
1531}
1532EXPORT_SYMBOL(dquot_release_reserved_space);
1533
1534/*
1535 * This operation can block, but only after everything is updated 1563 * This operation can block, but only after everything is updated
1536 */ 1564 */
1537int dquot_free_space(struct inode *inode, qsize_t number) 1565int __dquot_free_space(struct inode *inode, qsize_t number, int reserve)
1538{ 1566{
1539 unsigned int cnt; 1567 unsigned int cnt;
1540 char warntype[MAXQUOTAS]; 1568 char warntype[MAXQUOTAS];
@@ -1543,7 +1571,7 @@ int dquot_free_space(struct inode *inode, qsize_t number)
1543 * re-enter the quota code and are already holding the mutex */ 1571 * re-enter the quota code and are already holding the mutex */
1544 if (IS_NOQUOTA(inode)) { 1572 if (IS_NOQUOTA(inode)) {
1545out_sub: 1573out_sub:
1546 inode_sub_bytes(inode, number); 1574 inode_decr_space(inode, number, reserve);
1547 return QUOTA_OK; 1575 return QUOTA_OK;
1548 } 1576 }
1549 1577
@@ -1558,21 +1586,40 @@ out_sub:
1558 if (!inode->i_dquot[cnt]) 1586 if (!inode->i_dquot[cnt])
1559 continue; 1587 continue;
1560 warntype[cnt] = info_bdq_free(inode->i_dquot[cnt], number); 1588 warntype[cnt] = info_bdq_free(inode->i_dquot[cnt], number);
1561 dquot_decr_space(inode->i_dquot[cnt], number); 1589 if (reserve)
1590 dquot_free_reserved_space(inode->i_dquot[cnt], number);
1591 else
1592 dquot_decr_space(inode->i_dquot[cnt], number);
1562 } 1593 }
1563 inode_sub_bytes(inode, number); 1594 inode_decr_space(inode, number, reserve);
1564 spin_unlock(&dq_data_lock); 1595 spin_unlock(&dq_data_lock);
1565 /* Dirtify all the dquots - this can block when journalling */ 1596
1566 for (cnt = 0; cnt < MAXQUOTAS; cnt++) 1597 if (reserve)
1567 if (inode->i_dquot[cnt]) 1598 goto out_unlock;
1568 mark_dquot_dirty(inode->i_dquot[cnt]); 1599 mark_all_dquot_dirty(inode->i_dquot);
1600out_unlock:
1569 flush_warnings(inode->i_dquot, warntype); 1601 flush_warnings(inode->i_dquot, warntype);
1570 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1602 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1571 return QUOTA_OK; 1603 return QUOTA_OK;
1572} 1604}
1605
1606int dquot_free_space(struct inode *inode, qsize_t number)
1607{
1608 return __dquot_free_space(inode, number, 0);
1609}
1573EXPORT_SYMBOL(dquot_free_space); 1610EXPORT_SYMBOL(dquot_free_space);
1574 1611
1575/* 1612/*
1613 * Release reserved quota space
1614 */
1615void dquot_release_reserved_space(struct inode *inode, qsize_t number)
1616{
1617 __dquot_free_space(inode, number, 1);
1618
1619}
1620EXPORT_SYMBOL(dquot_release_reserved_space);
1621
1622/*
1576 * This operation can block, but only after everything is updated 1623 * This operation can block, but only after everything is updated
1577 */ 1624 */
1578int dquot_free_inode(const struct inode *inode, qsize_t number) 1625int dquot_free_inode(const struct inode *inode, qsize_t number)
@@ -1599,10 +1646,7 @@ int dquot_free_inode(const struct inode *inode, qsize_t number)
1599 dquot_decr_inodes(inode->i_dquot[cnt], number); 1646 dquot_decr_inodes(inode->i_dquot[cnt], number);
1600 } 1647 }
1601 spin_unlock(&dq_data_lock); 1648 spin_unlock(&dq_data_lock);
1602 /* Dirtify all the dquots - this can block when journalling */ 1649 mark_all_dquot_dirty(inode->i_dquot);
1603 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1604 if (inode->i_dquot[cnt])
1605 mark_dquot_dirty(inode->i_dquot[cnt]);
1606 flush_warnings(inode->i_dquot, warntype); 1650 flush_warnings(inode->i_dquot, warntype);
1607 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem); 1651 up_read(&sb_dqopt(inode->i_sb)->dqptr_sem);
1608 return QUOTA_OK; 1652 return QUOTA_OK;
@@ -1610,19 +1654,6 @@ int dquot_free_inode(const struct inode *inode, qsize_t number)
1610EXPORT_SYMBOL(dquot_free_inode); 1654EXPORT_SYMBOL(dquot_free_inode);
1611 1655
1612/* 1656/*
1613 * call back function, get reserved quota space from underlying fs
1614 */
1615qsize_t dquot_get_reserved_space(struct inode *inode)
1616{
1617 qsize_t reserved_space = 0;
1618
1619 if (sb_any_quota_active(inode->i_sb) &&
1620 inode->i_sb->dq_op->get_reserved_space)
1621 reserved_space = inode->i_sb->dq_op->get_reserved_space(inode);
1622 return reserved_space;
1623}
1624
1625/*
1626 * Transfer the number of inode and blocks from one diskquota to an other. 1657 * Transfer the number of inode and blocks from one diskquota to an other.
1627 * 1658 *
1628 * This operation can block, but only after everything is updated 1659 * This operation can block, but only after everything is updated
@@ -1665,7 +1696,7 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1665 } 1696 }
1666 spin_lock(&dq_data_lock); 1697 spin_lock(&dq_data_lock);
1667 cur_space = inode_get_bytes(inode); 1698 cur_space = inode_get_bytes(inode);
1668 rsv_space = dquot_get_reserved_space(inode); 1699 rsv_space = inode_get_rsv_space(inode);
1669 space = cur_space + rsv_space; 1700 space = cur_space + rsv_space;
1670 /* Build the transfer_from list and check the limits */ 1701 /* Build the transfer_from list and check the limits */
1671 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1702 for (cnt = 0; cnt < MAXQUOTAS; cnt++) {
@@ -1709,25 +1740,18 @@ int dquot_transfer(struct inode *inode, struct iattr *iattr)
1709 spin_unlock(&dq_data_lock); 1740 spin_unlock(&dq_data_lock);
1710 up_write(&sb_dqopt(inode->i_sb)->dqptr_sem); 1741 up_write(&sb_dqopt(inode->i_sb)->dqptr_sem);
1711 1742
1712 /* Dirtify all the dquots - this can block when journalling */ 1743 mark_all_dquot_dirty(transfer_from);
1713 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1744 mark_all_dquot_dirty(transfer_to);
1714 if (transfer_from[cnt]) 1745 /* The reference we got is transferred to the inode */
1715 mark_dquot_dirty(transfer_from[cnt]); 1746 for (cnt = 0; cnt < MAXQUOTAS; cnt++)
1716 if (transfer_to[cnt]) { 1747 transfer_to[cnt] = NULL;
1717 mark_dquot_dirty(transfer_to[cnt]);
1718 /* The reference we got is transferred to the inode */
1719 transfer_to[cnt] = NULL;
1720 }
1721 }
1722warn_put_all: 1748warn_put_all:
1723 flush_warnings(transfer_to, warntype_to); 1749 flush_warnings(transfer_to, warntype_to);
1724 flush_warnings(transfer_from, warntype_from_inodes); 1750 flush_warnings(transfer_from, warntype_from_inodes);
1725 flush_warnings(transfer_from, warntype_from_space); 1751 flush_warnings(transfer_from, warntype_from_space);
1726put_all: 1752put_all:
1727 for (cnt = 0; cnt < MAXQUOTAS; cnt++) { 1753 dqput_all(transfer_from);
1728 dqput(transfer_from[cnt]); 1754 dqput_all(transfer_to);
1729 dqput(transfer_to[cnt]);
1730 }
1731 return ret; 1755 return ret;
1732over_quota: 1756over_quota:
1733 spin_unlock(&dq_data_lock); 1757 spin_unlock(&dq_data_lock);
diff --git a/fs/quota/quota_v2.c b/fs/quota/quota_v2.c
index 3dfc23e02135..e3da02f4986f 100644
--- a/fs/quota/quota_v2.c
+++ b/fs/quota/quota_v2.c
@@ -97,8 +97,11 @@ static int v2_read_file_info(struct super_block *sb, int type)
97 unsigned int version; 97 unsigned int version;
98 98
99 if (!v2_read_header(sb, type, &dqhead)) 99 if (!v2_read_header(sb, type, &dqhead))
100 return 0; 100 return -1;
101 version = le32_to_cpu(dqhead.dqh_version); 101 version = le32_to_cpu(dqhead.dqh_version);
102 if ((info->dqi_fmt_id == QFMT_VFS_V0 && version != 0) ||
103 (info->dqi_fmt_id == QFMT_VFS_V1 && version != 1))
104 return -1;
102 105
103 size = sb->s_op->quota_read(sb, type, (char *)&dinfo, 106 size = sb->s_op->quota_read(sb, type, (char *)&dinfo,
104 sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF); 107 sizeof(struct v2_disk_dqinfo), V2_DQINFOOFF);
@@ -120,8 +123,8 @@ static int v2_read_file_info(struct super_block *sb, int type)
120 info->dqi_maxilimit = 0xffffffff; 123 info->dqi_maxilimit = 0xffffffff;
121 } else { 124 } else {
122 /* used space is stored as unsigned 64-bit value */ 125 /* used space is stored as unsigned 64-bit value */
123 info->dqi_maxblimit = 0xffffffffffffffff; /* 2^64-1 */ 126 info->dqi_maxblimit = 0xffffffffffffffffULL; /* 2^64-1 */
124 info->dqi_maxilimit = 0xffffffffffffffff; 127 info->dqi_maxilimit = 0xffffffffffffffffULL;
125 } 128 }
126 info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace); 129 info->dqi_bgrace = le32_to_cpu(dinfo.dqi_bgrace);
127 info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace); 130 info->dqi_igrace = le32_to_cpu(dinfo.dqi_igrace);
diff --git a/fs/stat.c b/fs/stat.c
index 075694e31d8b..c4ecd52c5737 100644
--- a/fs/stat.c
+++ b/fs/stat.c
@@ -401,9 +401,9 @@ SYSCALL_DEFINE4(fstatat64, int, dfd, char __user *, filename,
401} 401}
402#endif /* __ARCH_WANT_STAT64 */ 402#endif /* __ARCH_WANT_STAT64 */
403 403
404void inode_add_bytes(struct inode *inode, loff_t bytes) 404/* Caller is here responsible for sufficient locking (ie. inode->i_lock) */
405void __inode_add_bytes(struct inode *inode, loff_t bytes)
405{ 406{
406 spin_lock(&inode->i_lock);
407 inode->i_blocks += bytes >> 9; 407 inode->i_blocks += bytes >> 9;
408 bytes &= 511; 408 bytes &= 511;
409 inode->i_bytes += bytes; 409 inode->i_bytes += bytes;
@@ -411,6 +411,12 @@ void inode_add_bytes(struct inode *inode, loff_t bytes)
411 inode->i_blocks++; 411 inode->i_blocks++;
412 inode->i_bytes -= 512; 412 inode->i_bytes -= 512;
413 } 413 }
414}
415
416void inode_add_bytes(struct inode *inode, loff_t bytes)
417{
418 spin_lock(&inode->i_lock);
419 __inode_add_bytes(inode, bytes);
414 spin_unlock(&inode->i_lock); 420 spin_unlock(&inode->i_lock);
415} 421}
416 422
diff --git a/fs/super.c b/fs/super.c
index 19eb70b374bc..aff046b0fe78 100644
--- a/fs/super.c
+++ b/fs/super.c
@@ -901,8 +901,9 @@ int get_sb_single(struct file_system_type *fs_type,
901 return error; 901 return error;
902 } 902 }
903 s->s_flags |= MS_ACTIVE; 903 s->s_flags |= MS_ACTIVE;
904 } else {
905 do_remount_sb(s, flags, data, 0);
904 } 906 }
905 do_remount_sb(s, flags, data, 0);
906 simple_set_mnt(mnt, s); 907 simple_set_mnt(mnt, s);
907 return 0; 908 return 0;
908} 909}
diff --git a/fs/sysfs/bin.c b/fs/sysfs/bin.c
index 60c702bc10ae..a0a500af24a1 100644
--- a/fs/sysfs/bin.c
+++ b/fs/sysfs/bin.c
@@ -483,7 +483,8 @@ void unmap_bin_file(struct sysfs_dirent *attr_sd)
483 * @attr: attribute descriptor. 483 * @attr: attribute descriptor.
484 */ 484 */
485 485
486int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr) 486int sysfs_create_bin_file(struct kobject *kobj,
487 const struct bin_attribute *attr)
487{ 488{
488 BUG_ON(!kobj || !kobj->sd || !attr); 489 BUG_ON(!kobj || !kobj->sd || !attr);
489 490
@@ -497,7 +498,8 @@ int sysfs_create_bin_file(struct kobject * kobj, struct bin_attribute * attr)
497 * @attr: attribute descriptor. 498 * @attr: attribute descriptor.
498 */ 499 */
499 500
500void sysfs_remove_bin_file(struct kobject * kobj, struct bin_attribute * attr) 501void sysfs_remove_bin_file(struct kobject *kobj,
502 const struct bin_attribute *attr)
501{ 503{
502 sysfs_hash_and_remove(kobj->sd, attr->attr.name); 504 sysfs_hash_and_remove(kobj->sd, attr->attr.name);
503} 505}
diff --git a/include/linux/device.h b/include/linux/device.h
index 2a73d9bcbc9c..a62799f2ab00 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -166,9 +166,9 @@ struct driver_attribute driver_attr_##_name = \
166 __ATTR(_name, _mode, _show, _store) 166 __ATTR(_name, _mode, _show, _store)
167 167
168extern int __must_check driver_create_file(struct device_driver *driver, 168extern int __must_check driver_create_file(struct device_driver *driver,
169 struct driver_attribute *attr); 169 const struct driver_attribute *attr);
170extern void driver_remove_file(struct device_driver *driver, 170extern void driver_remove_file(struct device_driver *driver,
171 struct driver_attribute *attr); 171 const struct driver_attribute *attr);
172 172
173extern int __must_check driver_add_kobj(struct device_driver *drv, 173extern int __must_check driver_add_kobj(struct device_driver *drv,
174 struct kobject *kobj, 174 struct kobject *kobj,
@@ -319,13 +319,13 @@ struct device_attribute {
319struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store) 319struct device_attribute dev_attr_##_name = __ATTR(_name, _mode, _show, _store)
320 320
321extern int __must_check device_create_file(struct device *device, 321extern int __must_check device_create_file(struct device *device,
322 struct device_attribute *entry); 322 const struct device_attribute *entry);
323extern void device_remove_file(struct device *dev, 323extern void device_remove_file(struct device *dev,
324 struct device_attribute *attr); 324 const struct device_attribute *attr);
325extern int __must_check device_create_bin_file(struct device *dev, 325extern int __must_check device_create_bin_file(struct device *dev,
326 struct bin_attribute *attr); 326 const struct bin_attribute *attr);
327extern void device_remove_bin_file(struct device *dev, 327extern void device_remove_bin_file(struct device *dev,
328 struct bin_attribute *attr); 328 const struct bin_attribute *attr);
329extern int device_schedule_callback_owner(struct device *dev, 329extern int device_schedule_callback_owner(struct device *dev,
330 void (*func)(struct device *dev), struct module *owner); 330 void (*func)(struct device *dev), struct module *owner);
331 331
diff --git a/include/linux/dst.h b/include/linux/dst.h
deleted file mode 100644
index e26fed84b1aa..000000000000
--- a/include/linux/dst.h
+++ /dev/null
@@ -1,587 +0,0 @@
1/*
2 * 2007+ Copyright (c) Evgeniy Polyakov <johnpol@2ka.mipt.ru>
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 */
15
16#ifndef __DST_H
17#define __DST_H
18
19#include <linux/types.h>
20#include <linux/connector.h>
21
22#define DST_NAMELEN 32
23#define DST_NAME "dst"
24
25enum {
26 /* Remove node with given id from storage */
27 DST_DEL_NODE = 0,
28 /* Add remote node with given id to the storage */
29 DST_ADD_REMOTE,
30 /* Add local node with given id to the storage to be exported and used by remote peers */
31 DST_ADD_EXPORT,
32 /* Crypto initialization command (hash/cipher used to protect the connection) */
33 DST_CRYPTO,
34 /* Security attributes for given connection (permissions for example) */
35 DST_SECURITY,
36 /* Register given node in the block layer subsystem */
37 DST_START,
38 DST_CMD_MAX
39};
40
41struct dst_ctl
42{
43 /* Storage name */
44 char name[DST_NAMELEN];
45 /* Command flags */
46 __u32 flags;
47 /* Command itself (see above) */
48 __u32 cmd;
49 /* Maximum number of pages per single request in this device */
50 __u32 max_pages;
51 /* Stale/error transaction scanning timeout in milliseconds */
52 __u32 trans_scan_timeout;
53 /* Maximum number of retry sends before completing transaction as broken */
54 __u32 trans_max_retries;
55 /* Storage size */
56 __u64 size;
57};
58
59/* Reply command carries completion status */
60struct dst_ctl_ack
61{
62 struct cn_msg msg;
63 int error;
64 int unused[3];
65};
66
67/*
68 * Unfortunaltely socket address structure is not exported to userspace
69 * and is redefined there.
70 */
71#define SADDR_MAX_DATA 128
72
73struct saddr {
74 /* address family, AF_xxx */
75 unsigned short sa_family;
76 /* 14 bytes of protocol address */
77 char sa_data[SADDR_MAX_DATA];
78 /* Number of bytes used in sa_data */
79 unsigned short sa_data_len;
80};
81
82/* Address structure */
83struct dst_network_ctl
84{
85 /* Socket type: datagram, stream...*/
86 unsigned int type;
87 /* Let me guess, is it a Jupiter diameter? */
88 unsigned int proto;
89 /* Peer's address */
90 struct saddr addr;
91};
92
93struct dst_crypto_ctl
94{
95 /* Cipher and hash names */
96 char cipher_algo[DST_NAMELEN];
97 char hash_algo[DST_NAMELEN];
98
99 /* Key sizes. Can be zero for digest for example */
100 unsigned int cipher_keysize, hash_keysize;
101 /* Alignment. Calculated by the DST itself. */
102 unsigned int crypto_attached_size;
103 /* Number of threads to perform crypto operations */
104 int thread_num;
105};
106
107/* Export security attributes have this bits checked in when client connects */
108#define DST_PERM_READ (1<<0)
109#define DST_PERM_WRITE (1<<1)
110
111/*
112 * Right now it is simple model, where each remote address
113 * is assigned to set of permissions it is allowed to perform.
114 * In real world block device does not know anything but
115 * reading and writing, so it should be more than enough.
116 */
117struct dst_secure_user
118{
119 unsigned int permissions;
120 struct saddr addr;
121};
122
123/*
124 * Export control command: device to export and network address to accept
125 * clients to work with given device
126 */
127struct dst_export_ctl
128{
129 char device[DST_NAMELEN];
130 struct dst_network_ctl ctl;
131};
132
133enum {
134 DST_CFG = 1, /* Request remote configuration */
135 DST_IO, /* IO command */
136 DST_IO_RESPONSE, /* IO response */
137 DST_PING, /* Keepalive message */
138 DST_NCMD_MAX,
139};
140
141struct dst_cmd
142{
143 /* Network command itself, see above */
144 __u32 cmd;
145 /*
146 * Size of the attached data
147 * (in most cases, for READ command it means how many bytes were requested)
148 */
149 __u32 size;
150 /* Crypto size: number of attached bytes with digest/hmac */
151 __u32 csize;
152 /* Here we can carry secret data */
153 __u32 reserved;
154 /* Read/write bits, see how they are encoded in bio structure */
155 __u64 rw;
156 /* BIO flags */
157 __u64 flags;
158 /* Unique command id (like transaction ID) */
159 __u64 id;
160 /* Sector to start IO from */
161 __u64 sector;
162 /* Hash data is placed after this header */
163 __u8 hash[0];
164};
165
166/*
167 * Convert command to/from network byte order.
168 * We do not use hton*() functions, since there is
169 * no 64-bit implementation.
170 */
171static inline void dst_convert_cmd(struct dst_cmd *c)
172{
173 c->cmd = __cpu_to_be32(c->cmd);
174 c->csize = __cpu_to_be32(c->csize);
175 c->size = __cpu_to_be32(c->size);
176 c->sector = __cpu_to_be64(c->sector);
177 c->id = __cpu_to_be64(c->id);
178 c->flags = __cpu_to_be64(c->flags);
179 c->rw = __cpu_to_be64(c->rw);
180}
181
182/* Transaction id */
183typedef __u64 dst_gen_t;
184
185#ifdef __KERNEL__
186
187#include <linux/blkdev.h>
188#include <linux/bio.h>
189#include <linux/device.h>
190#include <linux/mempool.h>
191#include <linux/net.h>
192#include <linux/poll.h>
193#include <linux/rbtree.h>
194
195#ifdef CONFIG_DST_DEBUG
196#define dprintk(f, a...) printk(KERN_NOTICE f, ##a)
197#else
198static inline void __attribute__ ((format (printf, 1, 2)))
199 dprintk(const char *fmt, ...) {}
200#endif
201
202struct dst_node;
203
204struct dst_trans
205{
206 /* DST node we are working with */
207 struct dst_node *n;
208
209 /* Entry inside transaction tree */
210 struct rb_node trans_entry;
211
212 /* Merlin kills this transaction when this memory cell equals zero */
213 atomic_t refcnt;
214
215 /* How this transaction should be processed by crypto engine */
216 short enc;
217 /* How many times this transaction was resent */
218 short retries;
219 /* Completion status */
220 int error;
221
222 /* When did we send it to the remote peer */
223 long send_time;
224
225 /* My name is...
226 * Well, computers does not speak, they have unique id instead */
227 dst_gen_t gen;
228
229 /* Block IO we are working with */
230 struct bio *bio;
231
232 /* Network command for above block IO request */
233 struct dst_cmd cmd;
234};
235
236struct dst_crypto_engine
237{
238 /* What should we do with all block requests */
239 struct crypto_hash *hash;
240 struct crypto_ablkcipher *cipher;
241
242 /* Pool of pages used to encrypt data into before sending */
243 int page_num;
244 struct page **pages;
245
246 /* What to do with current request */
247 int enc;
248 /* Who we are and where do we go */
249 struct scatterlist *src, *dst;
250
251 /* Maximum timeout waiting for encryption to be completed */
252 long timeout;
253 /* IV is a 64-bit sequential counter */
254 u64 iv;
255
256 /* Secret data */
257 void *private;
258
259 /* Cached temporary data lives here */
260 int size;
261 void *data;
262};
263
264struct dst_state
265{
266 /* The main state protection */
267 struct mutex state_lock;
268
269 /* Polling machinery for sockets */
270 wait_queue_t wait;
271 wait_queue_head_t *whead;
272 /* Most of events are being waited here */
273 wait_queue_head_t thread_wait;
274
275 /* Who owns this? */
276 struct dst_node *node;
277
278 /* Network address for this state */
279 struct dst_network_ctl ctl;
280
281 /* Permissions to work with: read-only or rw connection */
282 u32 permissions;
283
284 /* Called when we need to clean private data */
285 void (* cleanup)(struct dst_state *st);
286
287 /* Used by the server: BIO completion queues BIOs here */
288 struct list_head request_list;
289 spinlock_t request_lock;
290
291 /* Guess what? No, it is not number of planets */
292 atomic_t refcnt;
293
294 /* This flags is set when connection should be dropped */
295 int need_exit;
296
297 /*
298 * Socket to work with. Second pointer is used for
299 * lockless check if socket was changed before performing
300 * next action (like working with cached polling result)
301 */
302 struct socket *socket, *read_socket;
303
304 /* Cached preallocated data */
305 void *data;
306 unsigned int size;
307
308 /* Currently processed command */
309 struct dst_cmd cmd;
310};
311
312struct dst_info
313{
314 /* Device size */
315 u64 size;
316
317 /* Local device name for export devices */
318 char local[DST_NAMELEN];
319
320 /* Network setup */
321 struct dst_network_ctl net;
322
323 /* Sysfs bits use this */
324 struct device device;
325};
326
327struct dst_node
328{
329 struct list_head node_entry;
330
331 /* Hi, my name is stored here */
332 char name[DST_NAMELEN];
333 /* My cache name is stored here */
334 char cache_name[DST_NAMELEN];
335
336 /* Block device attached to given node.
337 * Only valid for exporting nodes */
338 struct block_device *bdev;
339 /* Network state machine for given peer */
340 struct dst_state *state;
341
342 /* Block IO machinery */
343 struct request_queue *queue;
344 struct gendisk *disk;
345
346 /* Number of threads in processing pool */
347 int thread_num;
348 /* Maximum number of pages in single IO */
349 int max_pages;
350
351 /* I'm that big in bytes */
352 loff_t size;
353
354 /* Exported to userspace node information */
355 struct dst_info *info;
356
357 /*
358 * Security attribute list.
359 * Used only by exporting node currently.
360 */
361 struct list_head security_list;
362 struct mutex security_lock;
363
364 /*
365 * When this unerflows below zero, university collapses.
366 * But this will not happen, since node will be freed,
367 * when reference counter reaches zero.
368 */
369 atomic_t refcnt;
370
371 /* How precisely should I be started? */
372 int (*start)(struct dst_node *);
373
374 /* Crypto capabilities */
375 struct dst_crypto_ctl crypto;
376 u8 *hash_key;
377 u8 *cipher_key;
378
379 /* Pool of processing thread */
380 struct thread_pool *pool;
381
382 /* Transaction IDs live here */
383 atomic_long_t gen;
384
385 /*
386 * How frequently and how many times transaction
387 * tree should be scanned to drop stale objects.
388 */
389 long trans_scan_timeout;
390 int trans_max_retries;
391
392 /* Small gnomes live here */
393 struct rb_root trans_root;
394 struct mutex trans_lock;
395
396 /*
397 * Transaction cache/memory pool.
398 * It is big enough to contain not only transaction
399 * itself, but additional crypto data (digest/hmac).
400 */
401 struct kmem_cache *trans_cache;
402 mempool_t *trans_pool;
403
404 /* This entity scans transaction tree */
405 struct delayed_work trans_work;
406
407 wait_queue_head_t wait;
408};
409
410/* Kernel representation of the security attribute */
411struct dst_secure
412{
413 struct list_head sec_entry;
414 struct dst_secure_user sec;
415};
416
417int dst_process_bio(struct dst_node *n, struct bio *bio);
418
419int dst_node_init_connected(struct dst_node *n, struct dst_network_ctl *r);
420int dst_node_init_listened(struct dst_node *n, struct dst_export_ctl *le);
421
422static inline struct dst_state *dst_state_get(struct dst_state *st)
423{
424 BUG_ON(atomic_read(&st->refcnt) == 0);
425 atomic_inc(&st->refcnt);
426 return st;
427}
428
429void dst_state_put(struct dst_state *st);
430
431struct dst_state *dst_state_alloc(struct dst_node *n);
432int dst_state_socket_create(struct dst_state *st);
433void dst_state_socket_release(struct dst_state *st);
434
435void dst_state_exit_connected(struct dst_state *st);
436
437int dst_state_schedule_receiver(struct dst_state *st);
438
439void dst_dump_addr(struct socket *sk, struct sockaddr *sa, char *str);
440
441static inline void dst_state_lock(struct dst_state *st)
442{
443 mutex_lock(&st->state_lock);
444}
445
446static inline void dst_state_unlock(struct dst_state *st)
447{
448 mutex_unlock(&st->state_lock);
449}
450
451void dst_poll_exit(struct dst_state *st);
452int dst_poll_init(struct dst_state *st);
453
454static inline unsigned int dst_state_poll(struct dst_state *st)
455{
456 unsigned int revents = POLLHUP | POLLERR;
457
458 dst_state_lock(st);
459 if (st->socket)
460 revents = st->socket->ops->poll(NULL, st->socket, NULL);
461 dst_state_unlock(st);
462
463 return revents;
464}
465
466static inline int dst_thread_setup(void *private, void *data)
467{
468 return 0;
469}
470
471void dst_node_put(struct dst_node *n);
472
473static inline struct dst_node *dst_node_get(struct dst_node *n)
474{
475 atomic_inc(&n->refcnt);
476 return n;
477}
478
479int dst_data_recv(struct dst_state *st, void *data, unsigned int size);
480int dst_recv_cdata(struct dst_state *st, void *cdata);
481int dst_data_send_header(struct socket *sock,
482 void *data, unsigned int size, int more);
483
484int dst_send_bio(struct dst_state *st, struct dst_cmd *cmd, struct bio *bio);
485
486int dst_process_io(struct dst_state *st);
487int dst_export_crypto(struct dst_node *n, struct bio *bio);
488int dst_export_send_bio(struct bio *bio);
489int dst_start_export(struct dst_node *n);
490
491int __init dst_export_init(void);
492void dst_export_exit(void);
493
494/* Private structure for export block IO requests */
495struct dst_export_priv
496{
497 struct list_head request_entry;
498 struct dst_state *state;
499 struct bio *bio;
500 struct dst_cmd cmd;
501};
502
503static inline void dst_trans_get(struct dst_trans *t)
504{
505 atomic_inc(&t->refcnt);
506}
507
508struct dst_trans *dst_trans_search(struct dst_node *node, dst_gen_t gen);
509int dst_trans_remove(struct dst_trans *t);
510int dst_trans_remove_nolock(struct dst_trans *t);
511void dst_trans_put(struct dst_trans *t);
512
513/*
514 * Convert bio into network command.
515 */
516static inline void dst_bio_to_cmd(struct bio *bio, struct dst_cmd *cmd,
517 u32 command, u64 id)
518{
519 cmd->cmd = command;
520 cmd->flags = (bio->bi_flags << BIO_POOL_BITS) >> BIO_POOL_BITS;
521 cmd->rw = bio->bi_rw;
522 cmd->size = bio->bi_size;
523 cmd->csize = 0;
524 cmd->id = id;
525 cmd->sector = bio->bi_sector;
526};
527
528int dst_trans_send(struct dst_trans *t);
529int dst_trans_crypto(struct dst_trans *t);
530
531int dst_node_crypto_init(struct dst_node *n, struct dst_crypto_ctl *ctl);
532void dst_node_crypto_exit(struct dst_node *n);
533
534static inline int dst_need_crypto(struct dst_node *n)
535{
536 struct dst_crypto_ctl *c = &n->crypto;
537 /*
538 * Logical OR is appropriate here, but boolean one produces
539 * more optimal code, so it is used instead.
540 */
541 return (c->hash_algo[0] | c->cipher_algo[0]);
542}
543
544int dst_node_trans_init(struct dst_node *n, unsigned int size);
545void dst_node_trans_exit(struct dst_node *n);
546
547/*
548 * Pool of threads.
549 * Ready list contains threads currently free to be used,
550 * active one contains threads with some work scheduled for them.
551 * Caller can wait in given queue when thread is ready.
552 */
553struct thread_pool
554{
555 int thread_num;
556 struct mutex thread_lock;
557 struct list_head ready_list, active_list;
558
559 wait_queue_head_t wait;
560};
561
562void thread_pool_del_worker(struct thread_pool *p);
563void thread_pool_del_worker_id(struct thread_pool *p, unsigned int id);
564int thread_pool_add_worker(struct thread_pool *p,
565 char *name,
566 unsigned int id,
567 void *(* init)(void *data),
568 void (* cleanup)(void *data),
569 void *data);
570
571void thread_pool_destroy(struct thread_pool *p);
572struct thread_pool *thread_pool_create(int num, char *name,
573 void *(* init)(void *data),
574 void (* cleanup)(void *data),
575 void *data);
576
577int thread_pool_schedule(struct thread_pool *p,
578 int (* setup)(void *stored_private, void *setup_data),
579 int (* action)(void *stored_private, void *setup_data),
580 void *setup_data, long timeout);
581int thread_pool_schedule_private(struct thread_pool *p,
582 int (* setup)(void *private, void *data),
583 int (* action)(void *private, void *data),
584 void *data, long timeout, void *id);
585
586#endif /* __KERNEL__ */
587#endif /* __DST_H */
diff --git a/include/linux/ext3_fs_sb.h b/include/linux/ext3_fs_sb.h
index f07f34de2f0e..258088ab3c6b 100644
--- a/include/linux/ext3_fs_sb.h
+++ b/include/linux/ext3_fs_sb.h
@@ -72,6 +72,8 @@ struct ext3_sb_info {
72 struct inode * s_journal_inode; 72 struct inode * s_journal_inode;
73 struct journal_s * s_journal; 73 struct journal_s * s_journal;
74 struct list_head s_orphan; 74 struct list_head s_orphan;
75 struct mutex s_orphan_lock;
76 struct mutex s_resize_lock;
75 unsigned long s_commit_interval; 77 unsigned long s_commit_interval;
76 struct block_device *journal_bdev; 78 struct block_device *journal_bdev;
77#ifdef CONFIG_JBD_DEBUG 79#ifdef CONFIG_JBD_DEBUG
diff --git a/include/linux/ext3_jbd.h b/include/linux/ext3_jbd.h
index cf82d519be40..d7b5ddca99c2 100644
--- a/include/linux/ext3_jbd.h
+++ b/include/linux/ext3_jbd.h
@@ -44,13 +44,13 @@
44 44
45#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \ 45#define EXT3_DATA_TRANS_BLOCKS(sb) (EXT3_SINGLEDATA_TRANS_BLOCKS + \
46 EXT3_XATTR_TRANS_BLOCKS - 2 + \ 46 EXT3_XATTR_TRANS_BLOCKS - 2 + \
47 2*EXT3_QUOTA_TRANS_BLOCKS(sb)) 47 EXT3_MAXQUOTAS_TRANS_BLOCKS(sb))
48 48
49/* Delete operations potentially hit one directory's namespace plus an 49/* Delete operations potentially hit one directory's namespace plus an
50 * entire inode, plus arbitrary amounts of bitmap/indirection data. Be 50 * entire inode, plus arbitrary amounts of bitmap/indirection data. Be
51 * generous. We can grow the delete transaction later if necessary. */ 51 * generous. We can grow the delete transaction later if necessary. */
52 52
53#define EXT3_DELETE_TRANS_BLOCKS(sb) (2 * EXT3_DATA_TRANS_BLOCKS(sb) + 64) 53#define EXT3_DELETE_TRANS_BLOCKS(sb) (EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) + 64)
54 54
55/* Define an arbitrary limit for the amount of data we will anticipate 55/* Define an arbitrary limit for the amount of data we will anticipate
56 * writing to any given transaction. For unbounded transactions such as 56 * writing to any given transaction. For unbounded transactions such as
@@ -86,6 +86,9 @@
86#define EXT3_QUOTA_INIT_BLOCKS(sb) 0 86#define EXT3_QUOTA_INIT_BLOCKS(sb) 0
87#define EXT3_QUOTA_DEL_BLOCKS(sb) 0 87#define EXT3_QUOTA_DEL_BLOCKS(sb) 0
88#endif 88#endif
89#define EXT3_MAXQUOTAS_TRANS_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_TRANS_BLOCKS(sb))
90#define EXT3_MAXQUOTAS_INIT_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_INIT_BLOCKS(sb))
91#define EXT3_MAXQUOTAS_DEL_BLOCKS(sb) (MAXQUOTAS*EXT3_QUOTA_DEL_BLOCKS(sb))
89 92
90int 93int
91ext3_mark_iloc_dirty(handle_t *handle, 94ext3_mark_iloc_dirty(handle_t *handle,
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7e3012e0ac06..9147ca88f253 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -2297,6 +2297,7 @@ extern const struct inode_operations page_symlink_inode_operations;
2297extern int generic_readlink(struct dentry *, char __user *, int); 2297extern int generic_readlink(struct dentry *, char __user *, int);
2298extern void generic_fillattr(struct inode *, struct kstat *); 2298extern void generic_fillattr(struct inode *, struct kstat *);
2299extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *); 2299extern int vfs_getattr(struct vfsmount *, struct dentry *, struct kstat *);
2300void __inode_add_bytes(struct inode *inode, loff_t bytes);
2300void inode_add_bytes(struct inode *inode, loff_t bytes); 2301void inode_add_bytes(struct inode *inode, loff_t bytes);
2301void inode_sub_bytes(struct inode *inode, loff_t bytes); 2302void inode_sub_bytes(struct inode *inode, loff_t bytes);
2302loff_t inode_get_bytes(struct inode *inode); 2303loff_t inode_get_bytes(struct inode *inode);
diff --git a/include/linux/kfifo.h b/include/linux/kfifo.h
index 486e8ad3bb50..3d44e9c65a8e 100644
--- a/include/linux/kfifo.h
+++ b/include/linux/kfifo.h
@@ -69,8 +69,8 @@ struct kfifo {
69 * @name: name of the declared kfifo datatype 69 * @name: name of the declared kfifo datatype
70 * @size: size of the fifo buffer 70 * @size: size of the fifo buffer
71 * 71 *
72 * Note: the macro can be used inside struct or union declaration 72 * Note1: the macro can be used inside struct or union declaration
73 * Note: the macro creates two objects: 73 * Note2: the macro creates two objects:
74 * A kfifo object with the given name and a buffer for the kfifo 74 * A kfifo object with the given name and a buffer for the kfifo
75 * object named name##kfifo_buffer 75 * object named name##kfifo_buffer
76 */ 76 */
@@ -83,7 +83,6 @@ union { \
83/** 83/**
84 * INIT_KFIFO - Initialize a kfifo declared by DECLARED_KFIFO 84 * INIT_KFIFO - Initialize a kfifo declared by DECLARED_KFIFO
85 * @name: name of the declared kfifo datatype 85 * @name: name of the declared kfifo datatype
86 * @size: size of the fifo buffer
87 */ 86 */
88#define INIT_KFIFO(name) \ 87#define INIT_KFIFO(name) \
89 name = __kfifo_initializer(sizeof(name##kfifo_buffer) - \ 88 name = __kfifo_initializer(sizeof(name##kfifo_buffer) - \
@@ -94,8 +93,8 @@ union { \
94 * @name: name of the declared kfifo datatype 93 * @name: name of the declared kfifo datatype
95 * @size: size of the fifo buffer 94 * @size: size of the fifo buffer
96 * 95 *
97 * Note: the macro can be used for global and local kfifo data type variables 96 * Note1: the macro can be used for global and local kfifo data type variables
98 * Note: the macro creates two objects: 97 * Note2: the macro creates two objects:
99 * A kfifo object with the given name and a buffer for the kfifo 98 * A kfifo object with the given name and a buffer for the kfifo
100 * object named name##kfifo_buffer 99 * object named name##kfifo_buffer
101 */ 100 */
@@ -249,7 +248,7 @@ extern __must_check unsigned int kfifo_from_user(struct kfifo *fifo,
249extern __must_check unsigned int kfifo_to_user(struct kfifo *fifo, 248extern __must_check unsigned int kfifo_to_user(struct kfifo *fifo,
250 void __user *to, unsigned int n); 249 void __user *to, unsigned int n);
251 250
252/** 251/*
253 * __kfifo_add_out internal helper function for updating the out offset 252 * __kfifo_add_out internal helper function for updating the out offset
254 */ 253 */
255static inline void __kfifo_add_out(struct kfifo *fifo, 254static inline void __kfifo_add_out(struct kfifo *fifo,
@@ -259,7 +258,7 @@ static inline void __kfifo_add_out(struct kfifo *fifo,
259 fifo->out += off; 258 fifo->out += off;
260} 259}
261 260
262/** 261/*
263 * __kfifo_add_in internal helper function for updating the in offset 262 * __kfifo_add_in internal helper function for updating the in offset
264 */ 263 */
265static inline void __kfifo_add_in(struct kfifo *fifo, 264static inline void __kfifo_add_in(struct kfifo *fifo,
@@ -269,7 +268,7 @@ static inline void __kfifo_add_in(struct kfifo *fifo,
269 fifo->in += off; 268 fifo->in += off;
270} 269}
271 270
272/** 271/*
273 * __kfifo_off internal helper function for calculating the index of a 272 * __kfifo_off internal helper function for calculating the index of a
274 * given offeset 273 * given offeset
275 */ 274 */
@@ -278,7 +277,7 @@ static inline unsigned int __kfifo_off(struct kfifo *fifo, unsigned int off)
278 return off & (fifo->size - 1); 277 return off & (fifo->size - 1);
279} 278}
280 279
281/** 280/*
282 * __kfifo_peek_n internal helper function for determinate the length of 281 * __kfifo_peek_n internal helper function for determinate the length of
283 * the next record in the fifo 282 * the next record in the fifo
284 */ 283 */
@@ -299,7 +298,7 @@ static inline unsigned int __kfifo_peek_n(struct kfifo *fifo,
299#undef __KFIFO_GET 298#undef __KFIFO_GET
300} 299}
301 300
302/** 301/*
303 * __kfifo_poke_n internal helper function for storing the length of 302 * __kfifo_poke_n internal helper function for storing the length of
304 * the next record into the fifo 303 * the next record into the fifo
305 */ 304 */
@@ -319,7 +318,7 @@ static inline void __kfifo_poke_n(struct kfifo *fifo,
319#undef __KFIFO_PUT 318#undef __KFIFO_PUT
320} 319}
321 320
322/** 321/*
323 * __kfifo_in_... internal functions for put date into the fifo 322 * __kfifo_in_... internal functions for put date into the fifo
324 * do not call it directly, use kfifo_in_rec() instead 323 * do not call it directly, use kfifo_in_rec() instead
325 */ 324 */
@@ -367,7 +366,7 @@ static inline __must_check unsigned int kfifo_in_rec(struct kfifo *fifo,
367 return __kfifo_in_rec(fifo, from, n, recsize); 366 return __kfifo_in_rec(fifo, from, n, recsize);
368} 367}
369 368
370/** 369/*
371 * __kfifo_out_... internal functions for get date from the fifo 370 * __kfifo_out_... internal functions for get date from the fifo
372 * do not call it directly, use kfifo_out_rec() instead 371 * do not call it directly, use kfifo_out_rec() instead
373 */ 372 */
@@ -425,7 +424,7 @@ static inline __must_check unsigned int kfifo_out_rec(struct kfifo *fifo,
425 return __kfifo_out_rec(fifo, to, n, recsize, total); 424 return __kfifo_out_rec(fifo, to, n, recsize, total);
426} 425}
427 426
428/** 427/*
429 * __kfifo_from_user_... internal functions for transfer from user space into 428 * __kfifo_from_user_... internal functions for transfer from user space into
430 * the fifo. do not call it directly, use kfifo_from_user_rec() instead 429 * the fifo. do not call it directly, use kfifo_from_user_rec() instead
431 */ 430 */
@@ -474,7 +473,7 @@ static inline __must_check unsigned int kfifo_from_user_rec(struct kfifo *fifo,
474 return __kfifo_from_user_rec(fifo, from, n, recsize); 473 return __kfifo_from_user_rec(fifo, from, n, recsize);
475} 474}
476 475
477/** 476/*
478 * __kfifo_to_user_... internal functions for transfer fifo data into user space 477 * __kfifo_to_user_... internal functions for transfer fifo data into user space
479 * do not call it directly, use kfifo_to_user_rec() instead 478 * do not call it directly, use kfifo_to_user_rec() instead
480 */ 479 */
@@ -533,7 +532,7 @@ static inline __must_check unsigned int kfifo_to_user_rec(struct kfifo *fifo,
533 return __kfifo_to_user_rec(fifo, to, n, recsize, total); 532 return __kfifo_to_user_rec(fifo, to, n, recsize, total);
534} 533}
535 534
536/** 535/*
537 * __kfifo_peek_... internal functions for peek into the next fifo record 536 * __kfifo_peek_... internal functions for peek into the next fifo record
538 * do not call it directly, use kfifo_peek_rec() instead 537 * do not call it directly, use kfifo_peek_rec() instead
539 */ 538 */
@@ -557,7 +556,7 @@ static inline __must_check unsigned int kfifo_peek_rec(struct kfifo *fifo,
557 return __kfifo_peek_n(fifo, recsize); 556 return __kfifo_peek_n(fifo, recsize);
558} 557}
559 558
560/** 559/*
561 * __kfifo_skip_... internal functions for skip the next fifo record 560 * __kfifo_skip_... internal functions for skip the next fifo record
562 * do not call it directly, use kfifo_skip_rec() instead 561 * do not call it directly, use kfifo_skip_rec() instead
563 */ 562 */
diff --git a/include/linux/quota.h b/include/linux/quota.h
index e70e62194243..a6861f117480 100644
--- a/include/linux/quota.h
+++ b/include/linux/quota.h
@@ -315,8 +315,9 @@ struct dquot_operations {
315 int (*claim_space) (struct inode *, qsize_t); 315 int (*claim_space) (struct inode *, qsize_t);
316 /* release rsved quota for delayed alloc */ 316 /* release rsved quota for delayed alloc */
317 void (*release_rsv) (struct inode *, qsize_t); 317 void (*release_rsv) (struct inode *, qsize_t);
318 /* get reserved quota for delayed alloc */ 318 /* get reserved quota for delayed alloc, value returned is managed by
319 qsize_t (*get_reserved_space) (struct inode *); 319 * quota code only */
320 qsize_t *(*get_reserved_space) (struct inode *);
320}; 321};
321 322
322/* Operations handling requests from userspace */ 323/* Operations handling requests from userspace */
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 9d68fed50f11..cfa83083a2d4 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -99,8 +99,9 @@ int __must_check sysfs_chmod_file(struct kobject *kobj, struct attribute *attr,
99void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr); 99void sysfs_remove_file(struct kobject *kobj, const struct attribute *attr);
100 100
101int __must_check sysfs_create_bin_file(struct kobject *kobj, 101int __must_check sysfs_create_bin_file(struct kobject *kobj,
102 struct bin_attribute *attr); 102 const struct bin_attribute *attr);
103void sysfs_remove_bin_file(struct kobject *kobj, struct bin_attribute *attr); 103void sysfs_remove_bin_file(struct kobject *kobj,
104 const struct bin_attribute *attr);
104 105
105int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target, 106int __must_check sysfs_create_link(struct kobject *kobj, struct kobject *target,
106 const char *name); 107 const char *name);
@@ -175,13 +176,13 @@ static inline void sysfs_remove_file(struct kobject *kobj,
175} 176}
176 177
177static inline int sysfs_create_bin_file(struct kobject *kobj, 178static inline int sysfs_create_bin_file(struct kobject *kobj,
178 struct bin_attribute *attr) 179 const struct bin_attribute *attr)
179{ 180{
180 return 0; 181 return 0;
181} 182}
182 183
183static inline void sysfs_remove_bin_file(struct kobject *kobj, 184static inline void sysfs_remove_bin_file(struct kobject *kobj,
184 struct bin_attribute *attr) 185 const struct bin_attribute *attr)
185{ 186{
186} 187}
187 188
diff --git a/kernel/sched.c b/kernel/sched.c
index 87f1f47beffe..c535cc4f6428 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -2045,11 +2045,10 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu)
2045 2045
2046 trace_sched_migrate_task(p, new_cpu); 2046 trace_sched_migrate_task(p, new_cpu);
2047 2047
2048 if (task_cpu(p) == new_cpu) 2048 if (task_cpu(p) != new_cpu) {
2049 return; 2049 p->se.nr_migrations++;
2050 2050 perf_sw_event(PERF_COUNT_SW_CPU_MIGRATIONS, 1, 1, NULL, 0);
2051 p->se.nr_migrations++; 2051 }
2052 perf_sw_event(PERF_COUNT_SW_CPU_MIGRATIONS, 1, 1, NULL, 0);
2053 2052
2054 __set_task_cpu(p, new_cpu); 2053 __set_task_cpu(p, new_cpu);
2055} 2054}
diff --git a/sound/core/Kconfig b/sound/core/Kconfig
index c15682a2f9db..475455c76610 100644
--- a/sound/core/Kconfig
+++ b/sound/core/Kconfig
@@ -5,6 +5,7 @@ config SND_TIMER
5config SND_PCM 5config SND_PCM
6 tristate 6 tristate
7 select SND_TIMER 7 select SND_TIMER
8 select GCD
8 9
9config SND_HWDEP 10config SND_HWDEP
10 tristate 11 tristate
diff --git a/sound/core/pcm_timer.c b/sound/core/pcm_timer.c
index ca8068b63d6c..b01d9481d632 100644
--- a/sound/core/pcm_timer.c
+++ b/sound/core/pcm_timer.c
@@ -20,6 +20,7 @@
20 */ 20 */
21 21
22#include <linux/time.h> 22#include <linux/time.h>
23#include <linux/gcd.h>
23#include <sound/core.h> 24#include <sound/core.h>
24#include <sound/pcm.h> 25#include <sound/pcm.h>
25#include <sound/timer.h> 26#include <sound/timer.h>
@@ -28,22 +29,6 @@
28 * Timer functions 29 * Timer functions
29 */ 30 */
30 31
31/* Greatest common divisor */
32static unsigned long gcd(unsigned long a, unsigned long b)
33{
34 unsigned long r;
35 if (a < b) {
36 r = a;
37 a = b;
38 b = r;
39 }
40 while ((r = a % b) != 0) {
41 a = b;
42 b = r;
43 }
44 return b;
45}
46
47void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream) 32void snd_pcm_timer_resolution_change(struct snd_pcm_substream *substream)
48{ 33{
49 unsigned long rate, mult, fsize, l, post; 34 unsigned long rate, mult, fsize, l, post;
diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c
index 9cfdb771928c..950ee5cfcacf 100644
--- a/sound/pci/hda/hda_codec.c
+++ b/sound/pci/hda/hda_codec.c
@@ -1086,11 +1086,6 @@ int snd_hda_codec_configure(struct hda_codec *codec)
1086 if (err < 0) 1086 if (err < 0)
1087 return err; 1087 return err;
1088 } 1088 }
1089 /* audio codec should override the mixer name */
1090 if (codec->afg || !*codec->bus->card->mixername)
1091 snprintf(codec->bus->card->mixername,
1092 sizeof(codec->bus->card->mixername),
1093 "%s %s", codec->vendor_name, codec->chip_name);
1094 1089
1095 if (is_generic_config(codec)) { 1090 if (is_generic_config(codec)) {
1096 err = snd_hda_parse_generic_codec(codec); 1091 err = snd_hda_parse_generic_codec(codec);
@@ -1109,6 +1104,11 @@ int snd_hda_codec_configure(struct hda_codec *codec)
1109 patched: 1104 patched:
1110 if (!err && codec->patch_ops.unsol_event) 1105 if (!err && codec->patch_ops.unsol_event)
1111 err = init_unsol_queue(codec->bus); 1106 err = init_unsol_queue(codec->bus);
1107 /* audio codec should override the mixer name */
1108 if (!err && (codec->afg || !*codec->bus->card->mixername))
1109 snprintf(codec->bus->card->mixername,
1110 sizeof(codec->bus->card->mixername),
1111 "%s %s", codec->vendor_name, codec->chip_name);
1112 return err; 1112 return err;
1113} 1113}
1114EXPORT_SYMBOL_HDA(snd_hda_codec_configure); 1114EXPORT_SYMBOL_HDA(snd_hda_codec_configure);
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 9b56f937913e..ff8ad46cc50e 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2322,6 +2322,7 @@ static void __devinit check_probe_mask(struct azx *chip, int dev)
2322 * white/black-list for enable_msi 2322 * white/black-list for enable_msi
2323 */ 2323 */
2324static struct snd_pci_quirk msi_black_list[] __devinitdata = { 2324static struct snd_pci_quirk msi_black_list[] __devinitdata = {
2325 SND_PCI_QUIRK(0x1043, 0x81f2, "ASUS", 0), /* Athlon64 X2 + nvidia */
2325 {} 2326 {}
2326}; 2327};
2327 2328
diff --git a/sound/pci/hda/patch_cirrus.c b/sound/pci/hda/patch_cirrus.c
index 4b200da1bd18..fe0423c39598 100644
--- a/sound/pci/hda/patch_cirrus.c
+++ b/sound/pci/hda/patch_cirrus.c
@@ -66,6 +66,7 @@ struct cs_spec {
66/* available models */ 66/* available models */
67enum { 67enum {
68 CS420X_MBP55, 68 CS420X_MBP55,
69 CS420X_IMAC27,
69 CS420X_AUTO, 70 CS420X_AUTO,
70 CS420X_MODELS 71 CS420X_MODELS
71}; 72};
@@ -827,7 +828,8 @@ static void cs_automute(struct hda_codec *codec)
827 AC_VERB_SET_PIN_WIDGET_CONTROL, 828 AC_VERB_SET_PIN_WIDGET_CONTROL,
828 hp_present ? 0 : PIN_OUT); 829 hp_present ? 0 : PIN_OUT);
829 } 830 }
830 if (spec->board_config == CS420X_MBP55) { 831 if (spec->board_config == CS420X_MBP55 ||
832 spec->board_config == CS420X_IMAC27) {
831 unsigned int gpio = hp_present ? 0x02 : 0x08; 833 unsigned int gpio = hp_present ? 0x02 : 0x08;
832 snd_hda_codec_write(codec, 0x01, 0, 834 snd_hda_codec_write(codec, 0x01, 0,
833 AC_VERB_SET_GPIO_DATA, gpio); 835 AC_VERB_SET_GPIO_DATA, gpio);
@@ -1069,12 +1071,14 @@ static int cs_parse_auto_config(struct hda_codec *codec)
1069 1071
1070static const char *cs420x_models[CS420X_MODELS] = { 1072static const char *cs420x_models[CS420X_MODELS] = {
1071 [CS420X_MBP55] = "mbp55", 1073 [CS420X_MBP55] = "mbp55",
1074 [CS420X_IMAC27] = "imac27",
1072 [CS420X_AUTO] = "auto", 1075 [CS420X_AUTO] = "auto",
1073}; 1076};
1074 1077
1075 1078
1076static struct snd_pci_quirk cs420x_cfg_tbl[] = { 1079static struct snd_pci_quirk cs420x_cfg_tbl[] = {
1077 SND_PCI_QUIRK(0x10de, 0xcb79, "MacBookPro 5,5", CS420X_MBP55), 1080 SND_PCI_QUIRK(0x10de, 0xcb79, "MacBookPro 5,5", CS420X_MBP55),
1081 SND_PCI_QUIRK(0x8086, 0x7270, "IMac 27 Inch", CS420X_IMAC27),
1078 {} /* terminator */ 1082 {} /* terminator */
1079}; 1083};
1080 1084
@@ -1097,8 +1101,23 @@ static struct cs_pincfg mbp55_pincfgs[] = {
1097 {} /* terminator */ 1101 {} /* terminator */
1098}; 1102};
1099 1103
1104static struct cs_pincfg imac27_pincfgs[] = {
1105 { 0x09, 0x012b4050 },
1106 { 0x0a, 0x90100140 },
1107 { 0x0b, 0x90100142 },
1108 { 0x0c, 0x018b3020 },
1109 { 0x0d, 0x90a00110 },
1110 { 0x0e, 0x400000f0 },
1111 { 0x0f, 0x01cbe030 },
1112 { 0x10, 0x014be060 },
1113 { 0x12, 0x01ab9070 },
1114 { 0x15, 0x400000f0 },
1115 {} /* terminator */
1116};
1117
1100static struct cs_pincfg *cs_pincfgs[CS420X_MODELS] = { 1118static struct cs_pincfg *cs_pincfgs[CS420X_MODELS] = {
1101 [CS420X_MBP55] = mbp55_pincfgs, 1119 [CS420X_MBP55] = mbp55_pincfgs,
1120 [CS420X_IMAC27] = imac27_pincfgs,
1102}; 1121};
1103 1122
1104static void fix_pincfg(struct hda_codec *codec, int model) 1123static void fix_pincfg(struct hda_codec *codec, int model)
@@ -1128,6 +1147,7 @@ static int patch_cs420x(struct hda_codec *codec)
1128 fix_pincfg(codec, spec->board_config); 1147 fix_pincfg(codec, spec->board_config);
1129 1148
1130 switch (spec->board_config) { 1149 switch (spec->board_config) {
1150 case CS420X_IMAC27:
1131 case CS420X_MBP55: 1151 case CS420X_MBP55:
1132 /* GPIO1 = headphones */ 1152 /* GPIO1 = headphones */
1133 /* GPIO3 = speakers */ 1153 /* GPIO3 = speakers */
diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c
index 3d59f8325848..eeda7beeb57a 100644
--- a/sound/pci/hda/patch_sigmatel.c
+++ b/sound/pci/hda/patch_sigmatel.c
@@ -2104,6 +2104,7 @@ static unsigned int ref9205_pin_configs[12] = {
2104 10280204 2104 10280204
2105 1028021F 2105 1028021F
2106 10280228 (Dell Vostro 1500) 2106 10280228 (Dell Vostro 1500)
2107 10280229 (Dell Vostro 1700)
2107*/ 2108*/
2108static unsigned int dell_9205_m42_pin_configs[12] = { 2109static unsigned int dell_9205_m42_pin_configs[12] = {
2109 0x0321101F, 0x03A11020, 0x400003FA, 0x90170310, 2110 0x0321101F, 0x03A11020, 0x400003FA, 0x90170310,
@@ -2189,6 +2190,8 @@ static struct snd_pci_quirk stac9205_cfg_tbl[] = {
2189 "Dell Inspiron", STAC_9205_DELL_M44), 2190 "Dell Inspiron", STAC_9205_DELL_M44),
2190 SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0228, 2191 SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0228,
2191 "Dell Vostro 1500", STAC_9205_DELL_M42), 2192 "Dell Vostro 1500", STAC_9205_DELL_M42),
2193 SND_PCI_QUIRK(PCI_VENDOR_ID_DELL, 0x0229,
2194 "Dell Vostro 1700", STAC_9205_DELL_M42),
2192 /* Gateway */ 2195 /* Gateway */
2193 SND_PCI_QUIRK(0x107b, 0x0560, "Gateway T6834c", STAC_9205_EAPD), 2196 SND_PCI_QUIRK(0x107b, 0x0560, "Gateway T6834c", STAC_9205_EAPD),
2194 SND_PCI_QUIRK(0x107b, 0x0565, "Gateway T1616", STAC_9205_EAPD), 2197 SND_PCI_QUIRK(0x107b, 0x0565, "Gateway T1616", STAC_9205_EAPD),
@@ -3779,15 +3782,16 @@ static int stac92xx_parse_auto_config(struct hda_codec *codec, hda_nid_t dig_out
3779 err = snd_hda_attach_beep_device(codec, nid); 3782 err = snd_hda_attach_beep_device(codec, nid);
3780 if (err < 0) 3783 if (err < 0)
3781 return err; 3784 return err;
3782 /* IDT/STAC codecs have linear beep tone parameter */ 3785 if (codec->beep) {
3783 codec->beep->linear_tone = 1; 3786 /* IDT/STAC codecs have linear beep tone parameter */
3784 /* if no beep switch is available, make its own one */ 3787 codec->beep->linear_tone = 1;
3785 caps = query_amp_caps(codec, nid, HDA_OUTPUT); 3788 /* if no beep switch is available, make its own one */
3786 if (codec->beep && 3789 caps = query_amp_caps(codec, nid, HDA_OUTPUT);
3787 !((caps & AC_AMPCAP_MUTE) >> AC_AMPCAP_MUTE_SHIFT)) { 3790 if (!(caps & AC_AMPCAP_MUTE)) {
3788 err = stac92xx_beep_switch_ctl(codec); 3791 err = stac92xx_beep_switch_ctl(codec);
3789 if (err < 0) 3792 if (err < 0)
3790 return err; 3793 return err;
3794 }
3791 } 3795 }
3792 } 3796 }
3793#endif 3797#endif
diff --git a/sound/soc/codecs/wm9712.c b/sound/soc/codecs/wm9712.c
index 0ac1215dcd9b..e237bf615129 100644
--- a/sound/soc/codecs/wm9712.c
+++ b/sound/soc/codecs/wm9712.c
@@ -463,7 +463,8 @@ static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
463{ 463{
464 u16 *cache = codec->reg_cache; 464 u16 *cache = codec->reg_cache;
465 465
466 soc_ac97_ops.write(codec->ac97, reg, val); 466 if (reg < 0x7c)
467 soc_ac97_ops.write(codec->ac97, reg, val);
467 reg = reg >> 1; 468 reg = reg >> 1;
468 if (reg < (ARRAY_SIZE(wm9712_reg))) 469 if (reg < (ARRAY_SIZE(wm9712_reg)))
469 cache[reg] = val; 470 cache[reg] = val;
diff --git a/sound/soc/imx/mx27vis_wm8974.c b/sound/soc/imx/mx27vis_wm8974.c
index 0267d2d91685..07d2a248438c 100644
--- a/sound/soc/imx/mx27vis_wm8974.c
+++ b/sound/soc/imx/mx27vis_wm8974.c
@@ -180,7 +180,8 @@ static int mx27vis_hifi_hw_free(struct snd_pcm_substream *substream)
180 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai; 180 struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
181 181
182 /* disable the PLL */ 182 /* disable the PLL */
183 return codec_dai->ops->set_pll(codec_dai, IGNORED_ARG, 0, 0); 183 return codec_dai->ops->set_pll(codec_dai, IGNORED_ARG, IGNORED_ARG,
184 0, 0);
184} 185}
185 186
186/* 187/*
diff --git a/sound/soc/sh/fsi.c b/sound/soc/sh/fsi.c
index 9c49c11c43ce..42813b808389 100644
--- a/sound/soc/sh/fsi.c
+++ b/sound/soc/sh/fsi.c
@@ -876,7 +876,7 @@ static int fsi_probe(struct platform_device *pdev)
876 876
877 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 877 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
878 irq = platform_get_irq(pdev, 0); 878 irq = platform_get_irq(pdev, 0);
879 if (!res || !irq) { 879 if (!res || (int)irq <= 0) {
880 dev_err(&pdev->dev, "Not enough FSI platform resources.\n"); 880 dev_err(&pdev->dev, "Not enough FSI platform resources.\n");
881 ret = -ENODEV; 881 ret = -ENODEV;
882 goto exit; 882 goto exit;
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-08 05:49:52 -0500