From c77da1780325d889cac98e8179449ddf54e71ce0 Mon Sep 17 00:00:00 2001 From: Henrique de Moraes Holschuh Date: Fri, 29 Jun 2007 01:08:49 -0400 Subject: Input: add a new EV_SW SW_RADIO event, for radio switches on laptops Many laptops have rf-kill physical switches that are not keys, but slider or rocker switches. Often (like in all ThinkPads with a radio kill slider switch), they have both a slider/rocker switch and a hot key. Trying to kludge a real switch to act like a key is not a very smart thing to do if you can help it, and it gets specially bad when you are going to have both in the same machine. So, we do the right thing and add an input EV_SW event for radio kill switches. The EV_SW SW_RADIO event is defined with positive logic, i.e. when the switch is active, the radios are to be enabled. When the switch is inactive, the radios are to be disabled. Signed-off-by: Henrique de Moraes Holschuh Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/input.h b/include/linux/input.h index be2bf3a2b031..48f1ad6d6bb7 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -603,6 +603,7 @@ struct input_absinfo { #define SW_LID 0x00 /* set = lid shut */ #define SW_TABLET_MODE 0x01 /* set = tablet mode */ #define SW_HEADPHONE_INSERT 0x02 /* set = inserted */ +#define SW_RADIO 0x03 /* set = radio enabled */ #define SW_MAX 0x0f /* -- cgit v1.2.3 From 4e4eda866ec7bd7a151e4884a291221eb74644ae Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Fri, 29 Jun 2007 01:10:54 -0400 Subject: Input: document some of keycodes Document some of keycodes, based on USB HUT 1.12 and current mapping in HID driver. Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 142 ++++++++++++++++++++++++++------------------------ 1 file changed, 75 insertions(+), 67 deletions(-) (limited to 'include/linux') diff --git a/include/linux/input.h b/include/linux/input.h index 48f1ad6d6bb7..d8521c72f69f 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -108,6 +108,13 @@ struct input_absinfo { /* * Keys and buttons + * + * Most of the keys/buttons are modeled after USB HUT 1.12 + * (see http://www.usb.org/developers/hidpage). + * Abbreviations in the comments: + * AC - Application Control + * AL - Application Launch Button + * SC - System Control */ #define KEY_RESERVED 0 @@ -226,7 +233,7 @@ struct input_absinfo { #define KEY_MUTE 113 #define KEY_VOLUMEDOWN 114 #define KEY_VOLUMEUP 115 -#define KEY_POWER 116 +#define KEY_POWER 116 /* SC System Power Down */ #define KEY_KPEQUAL 117 #define KEY_KPPLUSMINUS 118 #define KEY_PAUSE 119 @@ -240,38 +247,39 @@ struct input_absinfo { #define KEY_RIGHTMETA 126 #define KEY_COMPOSE 127 -#define KEY_STOP 128 +#define KEY_STOP 128 /* AC Stop */ #define KEY_AGAIN 129 -#define KEY_PROPS 130 -#define KEY_UNDO 131 +#define KEY_PROPS 130 /* AC Properties */ +#define KEY_UNDO 131 /* AC Undo */ #define KEY_FRONT 132 -#define KEY_COPY 133 -#define KEY_OPEN 134 -#define KEY_PASTE 135 -#define KEY_FIND 136 -#define KEY_CUT 137 -#define KEY_HELP 138 -#define KEY_MENU 139 -#define KEY_CALC 140 +#define KEY_COPY 133 /* AC Copy */ +#define KEY_OPEN 134 /* AC Open */ +#define KEY_PASTE 135 /* AC Paste */ +#define KEY_FIND 136 /* AC Search */ +#define KEY_CUT 137 /* AC Cut */ +#define KEY_HELP 138 /* AL Integrated Help Center */ +#define KEY_MENU 139 /* Menu (show menu) */ +#define KEY_CALC 140 /* AL Calculator */ #define KEY_SETUP 141 -#define KEY_SLEEP 142 -#define KEY_WAKEUP 143 -#define KEY_FILE 144 +#define KEY_SLEEP 142 /* SC System Sleep */ +#define KEY_WAKEUP 143 /* System Wake Up */ +#define KEY_FILE 144 /* AL Local Machine Browser */ #define KEY_SENDFILE 145 #define KEY_DELETEFILE 146 #define KEY_XFER 147 #define KEY_PROG1 148 #define KEY_PROG2 149 -#define KEY_WWW 150 +#define KEY_WWW 150 /* AL Internet Browser */ #define KEY_MSDOS 151 -#define KEY_COFFEE 152 +#define KEY_COFFEE 152 /* AL Terminal Lock/Screensaver */ +#define KEY_SCREENLOCK KEY_COFFEE #define KEY_DIRECTION 153 #define KEY_CYCLEWINDOWS 154 #define KEY_MAIL 155 -#define KEY_BOOKMARKS 156 +#define KEY_BOOKMARKS 156 /* AC Bookmarks */ #define KEY_COMPUTER 157 -#define KEY_BACK 158 -#define KEY_FORWARD 159 +#define KEY_BACK 158 /* AC Back */ +#define KEY_FORWARD 159 /* AC Forward */ #define KEY_CLOSECD 160 #define KEY_EJECTCD 161 #define KEY_EJECTCLOSECD 162 @@ -281,20 +289,20 @@ struct input_absinfo { #define KEY_STOPCD 166 #define KEY_RECORD 167 #define KEY_REWIND 168 -#define KEY_PHONE 169 +#define KEY_PHONE 169 /* Media Select Telephone */ #define KEY_ISO 170 -#define KEY_CONFIG 171 -#define KEY_HOMEPAGE 172 -#define KEY_REFRESH 173 -#define KEY_EXIT 174 +#define KEY_CONFIG 171 /* AL Consumer Control Configuration */ +#define KEY_HOMEPAGE 172 /* AC Home */ +#define KEY_REFRESH 173 /* AC Refresh */ +#define KEY_EXIT 174 /* AC Exit */ #define KEY_MOVE 175 #define KEY_EDIT 176 #define KEY_SCROLLUP 177 #define KEY_SCROLLDOWN 178 #define KEY_KPLEFTPAREN 179 #define KEY_KPRIGHTPAREN 180 -#define KEY_NEW 181 -#define KEY_REDO 182 +#define KEY_NEW 181 /* AC New */ +#define KEY_REDO 182 /* AC Redo/Repeat */ #define KEY_F13 183 #define KEY_F14 184 @@ -314,11 +322,11 @@ struct input_absinfo { #define KEY_PROG3 202 #define KEY_PROG4 203 #define KEY_SUSPEND 205 -#define KEY_CLOSE 206 +#define KEY_CLOSE 206 /* AC Close */ #define KEY_PLAY 207 #define KEY_FASTFORWARD 208 #define KEY_BASSBOOST 209 -#define KEY_PRINT 210 +#define KEY_PRINT 210 /* AC Print */ #define KEY_HP 211 #define KEY_CAMERA 212 #define KEY_SOUND 213 @@ -327,11 +335,11 @@ struct input_absinfo { #define KEY_CHAT 216 #define KEY_SEARCH 217 #define KEY_CONNECT 218 -#define KEY_FINANCE 219 +#define KEY_FINANCE 219 /* AL Checkbook/Finance */ #define KEY_SPORT 220 #define KEY_SHOP 221 #define KEY_ALTERASE 222 -#define KEY_CANCEL 223 +#define KEY_CANCEL 223 /* AC Cancel */ #define KEY_BRIGHTNESSDOWN 224 #define KEY_BRIGHTNESSUP 225 #define KEY_MEDIA 226 @@ -341,10 +349,10 @@ struct input_absinfo { #define KEY_KBDILLUMDOWN 229 #define KEY_KBDILLUMUP 230 -#define KEY_SEND 231 -#define KEY_REPLY 232 -#define KEY_FORWARDMAIL 233 -#define KEY_SAVE 234 +#define KEY_SEND 231 /* AC Send */ +#define KEY_REPLY 232 /* AC Reply */ +#define KEY_FORWARDMAIL 233 /* AC Forward Msg */ +#define KEY_SAVE 234 /* AC Save */ #define KEY_DOCUMENTS 235 #define KEY_BATTERY 236 @@ -433,15 +441,15 @@ struct input_absinfo { #define KEY_CLEAR 0x163 #define KEY_POWER2 0x164 #define KEY_OPTION 0x165 -#define KEY_INFO 0x166 +#define KEY_INFO 0x166 /* AL OEM Features/Tips/Tutorial */ #define KEY_TIME 0x167 #define KEY_VENDOR 0x168 #define KEY_ARCHIVE 0x169 -#define KEY_PROGRAM 0x16a +#define KEY_PROGRAM 0x16a /* Media Select Program Guide */ #define KEY_CHANNEL 0x16b #define KEY_FAVORITES 0x16c #define KEY_EPG 0x16d -#define KEY_PVR 0x16e +#define KEY_PVR 0x16e /* Media Select Home */ #define KEY_MHP 0x16f #define KEY_LANGUAGE 0x170 #define KEY_TITLE 0x171 @@ -451,36 +459,36 @@ struct input_absinfo { #define KEY_MODE 0x175 #define KEY_KEYBOARD 0x176 #define KEY_SCREEN 0x177 -#define KEY_PC 0x178 -#define KEY_TV 0x179 -#define KEY_TV2 0x17a -#define KEY_VCR 0x17b -#define KEY_VCR2 0x17c -#define KEY_SAT 0x17d +#define KEY_PC 0x178 /* Media Select Computer */ +#define KEY_TV 0x179 /* Media Select TV */ +#define KEY_TV2 0x17a /* Media Select Cable */ +#define KEY_VCR 0x17b /* Media Select VCR */ +#define KEY_VCR2 0x17c /* VCR Plus */ +#define KEY_SAT 0x17d /* Media Select Satellite */ #define KEY_SAT2 0x17e -#define KEY_CD 0x17f -#define KEY_TAPE 0x180 +#define KEY_CD 0x17f /* Media Select CD */ +#define KEY_TAPE 0x180 /* Media Select Tape */ #define KEY_RADIO 0x181 -#define KEY_TUNER 0x182 +#define KEY_TUNER 0x182 /* Media Select Tuner */ #define KEY_PLAYER 0x183 #define KEY_TEXT 0x184 -#define KEY_DVD 0x185 +#define KEY_DVD 0x185 /* Media Select DVD */ #define KEY_AUX 0x186 #define KEY_MP3 0x187 #define KEY_AUDIO 0x188 #define KEY_VIDEO 0x189 #define KEY_DIRECTORY 0x18a #define KEY_LIST 0x18b -#define KEY_MEMO 0x18c +#define KEY_MEMO 0x18c /* Media Select Messages */ #define KEY_CALENDAR 0x18d #define KEY_RED 0x18e #define KEY_GREEN 0x18f #define KEY_YELLOW 0x190 #define KEY_BLUE 0x191 -#define KEY_CHANNELUP 0x192 -#define KEY_CHANNELDOWN 0x193 +#define KEY_CHANNELUP 0x192 /* Channel Increment */ +#define KEY_CHANNELDOWN 0x193 /* Channel Decrement */ #define KEY_FIRST 0x194 -#define KEY_LAST 0x195 +#define KEY_LAST 0x195 /* Recall Last */ #define KEY_AB 0x196 #define KEY_NEXT 0x197 #define KEY_RESTART 0x198 @@ -491,21 +499,21 @@ struct input_absinfo { #define KEY_DIGITS 0x19d #define KEY_TEEN 0x19e #define KEY_TWEN 0x19f -#define KEY_VIDEOPHONE 0x1a0 -#define KEY_GAMES 0x1a1 -#define KEY_ZOOMIN 0x1a2 -#define KEY_ZOOMOUT 0x1a3 -#define KEY_ZOOMRESET 0x1a4 -#define KEY_WORDPROCESSOR 0x1a5 -#define KEY_EDITOR 0x1a6 -#define KEY_SPREADSHEET 0x1a7 -#define KEY_GRAPHICSEDITOR 0x1a8 -#define KEY_PRESENTATION 0x1a9 -#define KEY_DATABASE 0x1aa -#define KEY_NEWS 0x1ab -#define KEY_VOICEMAIL 0x1ac -#define KEY_ADDRESSBOOK 0x1ad -#define KEY_MESSENGER 0x1ae +#define KEY_VIDEOPHONE 0x1a0 /* Media Select Video Phone */ +#define KEY_GAMES 0x1a1 /* Media Select Games */ +#define KEY_ZOOMIN 0x1a2 /* AC Zoom In */ +#define KEY_ZOOMOUT 0x1a3 /* AC Zoom Out */ +#define KEY_ZOOMRESET 0x1a4 /* AC Zoom */ +#define KEY_WORDPROCESSOR 0x1a5 /* AL Word Processor */ +#define KEY_EDITOR 0x1a6 /* AL Text Editor */ +#define KEY_SPREADSHEET 0x1a7 /* AL Spreadsheet */ +#define KEY_GRAPHICSEDITOR 0x1a8 /* AL Graphics Editor */ +#define KEY_PRESENTATION 0x1a9 /* AL Presentation App */ +#define KEY_DATABASE 0x1aa /* AL Database App */ +#define KEY_NEWS 0x1ab /* AL Newsreader */ +#define KEY_VOICEMAIL 0x1ac /* AL Voicemail */ +#define KEY_ADDRESSBOOK 0x1ad /* AL Contacts/Address Book */ +#define KEY_MESSENGER 0x1ae /* AL Instant Messaging */ #define KEY_DISPLAYTOGGLE 0x1af /* Turn display (LCD) on and off */ #define KEY_DEL_EOL 0x1c0 -- cgit v1.2.3 From 40e48eed84e65f909f5ac3d7a39547b70aacf90f Mon Sep 17 00:00:00 2001 From: Adrian Bunk Date: Sat, 7 Jul 2007 00:54:09 +0200 Subject: include/linux/kallsyms.h must #include This patch fixes the following 2.6.22 regression with CONFIG_KALLSYMS=n: <-- snip --> ... CC arch/m32r/kernel/traps.o In file included from /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/arch/m32r/kernel/traps.c:14: /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h: In function 'lookup_symbol_name': /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: 'ERANGE' undeclared (first use in this function) /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: (Each undeclared identifier is reported only once /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:66: error: for each function it appears in.) /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h: In function 'lookup_symbol_attrs': /home/bunk/linux/kernel-2.6/linux-2.6.22-rc6-mm1/include/linux/kallsyms.h:71: error: 'ERANGE' undeclared (first use in this function) make[2]: *** [arch/m32r/kernel/traps.o] Error 1 <-- snip --> Signed-off-by: Adrian Bunk Signed-off-by: Linus Torvalds --- include/linux/kallsyms.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/kallsyms.h b/include/linux/kallsyms.h index 12178d2c882b..5f06527dca21 100644 --- a/include/linux/kallsyms.h +++ b/include/linux/kallsyms.h @@ -5,6 +5,7 @@ #ifndef _LINUX_KALLSYMS_H #define _LINUX_KALLSYMS_H +#include #define KSYM_NAME_LEN 127 #define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + KSYM_NAME_LEN + \ -- cgit v1.2.3 From 4c6c914e4c2e0f91775ce4051b5a800c55175462 Mon Sep 17 00:00:00 2001 From: Uwe Koziolek Date: Sun, 8 Jul 2007 15:21:58 +0200 Subject: sis5513: adding PCI-ID The SiS966 has one additional PCI-ID 1180. If the chipset is using this PCI-ID, the primary channel is connected to the first PATA-port. The secondary channel is connected to SATA-ports in IDE emulation mode. The legacy IO-ports are used. The including of the PCI-ID into pata_sis is not sufficient, because the legacy driver in drivers/ide is initialized before pata_sis. Signed-off-by: Uwe Koziolek Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 9a03b47da603..5b1c9994f89a 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -661,6 +661,7 @@ #define PCI_DEVICE_ID_SI_965 0x0965 #define PCI_DEVICE_ID_SI_966 0x0966 #define PCI_DEVICE_ID_SI_968 0x0968 +#define PCI_DEVICE_ID_SI_1180 0x1180 #define PCI_DEVICE_ID_SI_5511 0x5511 #define PCI_DEVICE_ID_SI_5513 0x5513 #define PCI_DEVICE_ID_SI_5517 0x5517 -- cgit v1.2.3 From 9467d64b0e88763914c01f71ddf591b166c4f526 Mon Sep 17 00:00:00 2001 From: Ivo van Doorn Date: Fri, 11 May 2007 15:59:40 -0400 Subject: [PATCH] Add 93cx6 eeprom library This patch adds a library for reading from 93cx6 eeproms. Signed-off-by: Michael Wu Signed-off-by: John W. Linville --- include/linux/eeprom_93cx6.h | 72 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 72 insertions(+) create mode 100644 include/linux/eeprom_93cx6.h (limited to 'include/linux') diff --git a/include/linux/eeprom_93cx6.h b/include/linux/eeprom_93cx6.h new file mode 100644 index 000000000000..d774b7778c91 --- /dev/null +++ b/include/linux/eeprom_93cx6.h @@ -0,0 +1,72 @@ +/* + Copyright (C) 2004 - 2006 rt2x00 SourceForge Project + + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the + Free Software Foundation, Inc., + 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + */ + +/* + Module: eeprom_93cx6 + Abstract: EEPROM reader datastructures for 93cx6 chipsets. + Supported chipsets: 93c46 & 93c66. + */ + +/* + * EEPROM operation defines. + */ +#define PCI_EEPROM_WIDTH_93C46 6 +#define PCI_EEPROM_WIDTH_93C66 8 +#define PCI_EEPROM_WIDTH_OPCODE 3 +#define PCI_EEPROM_WRITE_OPCODE 0x05 +#define PCI_EEPROM_READ_OPCODE 0x06 +#define PCI_EEPROM_EWDS_OPCODE 0x10 +#define PCI_EEPROM_EWEN_OPCODE 0x13 + +/** + * struct eeprom_93cx6 - control structure for setting the commands + * for reading the eeprom data. + * @data: private pointer for the driver. + * @register_read(struct eeprom_93cx6 *eeprom): handler to + * read the eeprom register, this function should set all reg_* fields. + * @register_write(struct eeprom_93cx6 *eeprom): handler to + * write to the eeprom register by using all reg_* fields. + * @width: eeprom width, should be one of the PCI_EEPROM_WIDTH_* defines + * @reg_data_in: register field to indicate data input + * @reg_data_out: register field to indicate data output + * @reg_data_clock: register field to set the data clock + * @reg_chip_select: register field to set the chip select + * + * This structure is used for the communication between the driver + * and the eeprom_93cx6 handlers for reading the eeprom. + */ +struct eeprom_93cx6 { + void *data; + + void (*register_read)(struct eeprom_93cx6 *eeprom); + void (*register_write)(struct eeprom_93cx6 *eeprom); + + int width; + + char reg_data_in; + char reg_data_out; + char reg_data_clock; + char reg_chip_select; +}; + +extern void eeprom_93cx6_read(struct eeprom_93cx6 *eeprom, + const u8 word, u16 *data); +extern void eeprom_93cx6_multiread(struct eeprom_93cx6 *eeprom, + const u8 word, __le16 *data, const u16 words); -- cgit v1.2.3 From dbb7cae2a36170cd17ffbe286ec0c91a998740ff Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Tue, 15 May 2007 15:37:50 +0100 Subject: [GFS2] Clean up inode number handling This patch cleans up the inode number handling code. The main difference is that instead of looking up the inodes using a struct gfs2_inum_host we now use just the no_addr member of this structure. The tests relating to no_formal_ino can then be done by the calling code. This has advantages in that we want to do different things in different code paths if the no_formal_ino doesn't match. In the NFS patch we want to return -ESTALE, but in the ->lookup() path, its a bug in the fs if the no_formal_ino doesn't match and thus we can withdraw in this case. In order to later fix bz #201012, we need to be able to look up an inode without knowing no_formal_ino, as the only information that is known to us is the on-disk location of the inode in question. This patch will also help us to fix bz #236099 at a later date by cleaning up a lot of the code in that area. There are no user visible changes as a result of this patch and there are no changes to the on-disk format either. Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 11 ++--------- 1 file changed, 2 insertions(+), 9 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index 8b7e4c1e32ae..a82ec8c62eff 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -59,13 +59,6 @@ struct gfs2_inum_host { __u64 no_addr; }; -static inline int gfs2_inum_equal(const struct gfs2_inum_host *ino1, - const struct gfs2_inum_host *ino2) -{ - return ino1->no_formal_ino == ino2->no_formal_ino && - ino1->no_addr == ino2->no_addr; -} - /* * Generic metadata head structure * Every inplace buffer logged in the journal must start with this. @@ -509,9 +502,9 @@ struct gfs2_quota_change_host { #ifdef __KERNEL__ /* Translation functions */ +struct gfs2_inode; -extern void gfs2_inum_in(struct gfs2_inum_host *no, const void *buf); -extern void gfs2_inum_out(const struct gfs2_inum_host *no, void *buf); +extern void gfs2_inum_out(const struct gfs2_inode *ip, struct gfs2_dirent *dent); extern void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf); extern void gfs2_rindex_in(struct gfs2_rindex_host *ri, const void *buf); extern void gfs2_rindex_out(const struct gfs2_rindex_host *ri, void *buf); -- cgit v1.2.3 From 2a87ab080607d009b8b2a8706f4e27d70402ca9c Mon Sep 17 00:00:00 2001 From: Abhijith Das Date: Wed, 16 May 2007 17:02:19 -0500 Subject: [GFS2] Quotas non-functional - fix bug This patch fixes an error in the quota code where a 'struct gfs2_quota_lvb*' was being passed to gfs2_adjust_quota() instead of a 'struct gfs2_quota_data*'. Also moved 'struct gfs2_quota_lvb' from fs/gfs2/incore.h to include/linux/gfs2_ondisk.h as per Steve's suggestion. Signed-off-by: Abhijith Das Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index a82ec8c62eff..028f9810ba07 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -500,6 +500,14 @@ struct gfs2_quota_change_host { __u32 qc_id; }; +struct gfs2_quota_lvb { + __be32 qb_magic; + u32 __pad; + __be64 qb_limit; /* Hard limit of # blocks to alloc */ + __be64 qb_warn; /* Warn user when alloc is above this # */ + __be64 qb_value; /* Current # blocks allocated */ +}; + #ifdef __KERNEL__ /* Translation functions */ struct gfs2_inode; -- cgit v1.2.3 From 3ae1acf93a21512512f8a78430fcde5992dd208e Mon Sep 17 00:00:00 2001 From: David Teigland Date: Fri, 18 May 2007 08:59:31 -0500 Subject: [DLM] add lock timeouts and warnings [2/6] New features: lock timeouts and time warnings. If the DLM_LKF_TIMEOUT flag is set, then the request/conversion will be canceled after waiting the specified number of centiseconds (specified per lock). This feature is only available for locks requested through libdlm (can be enabled for kernel dlm users if there's a use for it.) If the new DLM_LSFL_TIMEWARN flag is set when creating the lockspace, then a warning message will be sent to userspace (using genetlink) after a request/conversion has been waiting for a given number of centiseconds (configurable per node). The time warnings will be used in the future to do deadlock detection in userspace. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- include/linux/Kbuild | 1 + include/linux/dlm.h | 7 +++--- include/linux/dlm_netlink.h | 56 +++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 61 insertions(+), 3 deletions(-) create mode 100644 include/linux/dlm_netlink.h (limited to 'include/linux') diff --git a/include/linux/Kbuild b/include/linux/Kbuild index f317c270d4bf..afae306b177c 100644 --- a/include/linux/Kbuild +++ b/include/linux/Kbuild @@ -49,6 +49,7 @@ header-y += consolemap.h header-y += const.h header-y += cycx_cfm.h header-y += dlm_device.h +header-y += dlm_netlink.h header-y += dm-ioctl.h header-y += dn.h header-y += dqblk_v1.h diff --git a/include/linux/dlm.h b/include/linux/dlm.h index 1b1dcb9a40bb..975f17d8aa53 100644 --- a/include/linux/dlm.h +++ b/include/linux/dlm.h @@ -2,7 +2,7 @@ ******************************************************************************* ** ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. -** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. +** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. ** ** This copyrighted material is made available to anyone wishing to use, ** modify, copy, or redistribute it subject to the terms and conditions @@ -149,6 +149,7 @@ #define DLM_LKF_ALTPR 0x00008000 #define DLM_LKF_ALTCW 0x00010000 #define DLM_LKF_FORCEUNLOCK 0x00020000 +#define DLM_LKF_TIMEOUT 0x00040000 /* * Some return codes that are not in errno.h @@ -199,11 +200,11 @@ struct dlm_lksb { char * sb_lvbptr; }; +#define DLM_LSFL_NODIR 0x00000001 +#define DLM_LSFL_TIMEWARN 0x00000002 #ifdef __KERNEL__ -#define DLM_LSFL_NODIR 0x00000001 - /* * dlm_new_lockspace * diff --git a/include/linux/dlm_netlink.h b/include/linux/dlm_netlink.h new file mode 100644 index 000000000000..19276332707a --- /dev/null +++ b/include/linux/dlm_netlink.h @@ -0,0 +1,56 @@ +/* + * Copyright (C) 2007 Red Hat, Inc. All rights reserved. + * + * This copyrighted material is made available to anyone wishing to use, + * modify, copy, or redistribute it subject to the terms and conditions + * of the GNU General Public License v.2. + */ + +#ifndef _DLM_NETLINK_H +#define _DLM_NETLINK_H + +enum { + DLM_STATUS_WAITING = 1, + DLM_STATUS_GRANTED = 2, + DLM_STATUS_CONVERT = 3, +}; + +#define DLM_LOCK_DATA_VERSION 1 + +struct dlm_lock_data { + uint16_t version; + uint32_t lockspace_id; + int nodeid; + int ownpid; + uint32_t id; + uint32_t remid; + uint64_t xid; + int8_t status; + int8_t grmode; + int8_t rqmode; + unsigned long timestamp; + int resource_namelen; + char resource_name[DLM_RESNAME_MAXLEN]; +}; + +enum { + DLM_CMD_UNSPEC = 0, + DLM_CMD_HELLO, /* user->kernel */ + DLM_CMD_TIMEOUT, /* kernel->user */ + __DLM_CMD_MAX, +}; + +#define DLM_CMD_MAX (__DLM_CMD_MAX - 1) + +enum { + DLM_TYPE_UNSPEC = 0, + DLM_TYPE_LOCK, + __DLM_TYPE_MAX, +}; + +#define DLM_TYPE_MAX (__DLM_TYPE_MAX - 1) + +#define DLM_GENL_VERSION 0x1 +#define DLM_GENL_NAME "DLM" + +#endif /* _DLM_NETLINK_H */ -- cgit v1.2.3 From d7db923ea4990edb5583bf54af868ba687a1bc84 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Fri, 18 May 2007 09:00:32 -0500 Subject: [DLM] dlm_device interface changes [3/6] Change the user/kernel device interface used by libdlm: - Add ability for userspace to check the version of the interface. libdlm can now adapt to different versions of the kernel interface. - Increase the size of the flags passed in a lock request so all possible flags can be used from userspace. - Add an opaque "xid" value for each lock. This "transaction id" will be used later to associate locks with each other during deadlock detection. - Add a "timeout" value for each lock. This is used along with the DLM_LKF_TIMEOUT flag. Also, remove a fragment of unused code in device_read(). This patch requires updating libdlm which is backward compatible with older kernels. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- include/linux/dlm_device.h | 21 +++++++++++++++------ 1 file changed, 15 insertions(+), 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h index c2735cab2ebf..f7b9b57348a8 100644 --- a/include/linux/dlm_device.h +++ b/include/linux/dlm_device.h @@ -2,7 +2,7 @@ ******************************************************************************* ** ** Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved. -** Copyright (C) 2004-2005 Red Hat, Inc. All rights reserved. +** Copyright (C) 2004-2007 Red Hat, Inc. All rights reserved. ** ** This copyrighted material is made available to anyone wishing to use, ** modify, copy, or redistribute it subject to the terms and conditions @@ -18,21 +18,24 @@ #define DLM_USER_LVB_LEN 32 /* Version of the device interface */ -#define DLM_DEVICE_VERSION_MAJOR 5 -#define DLM_DEVICE_VERSION_MINOR 1 +#define DLM_DEVICE_VERSION_MAJOR 6 +#define DLM_DEVICE_VERSION_MINOR 0 #define DLM_DEVICE_VERSION_PATCH 0 /* struct passed to the lock write */ struct dlm_lock_params { __u8 mode; __u8 namelen; - __u16 flags; + __u16 unused; + __u32 flags; __u32 lkid; __u32 parent; - void __user *castparam; + __u64 xid; + __u64 timeout; + void __user *castparam; void __user *castaddr; void __user *bastparam; - void __user *bastaddr; + void __user *bastaddr; struct dlm_lksb __user *lksb; char lvb[DLM_USER_LVB_LEN]; char name[0]; @@ -62,9 +65,15 @@ struct dlm_write_request { } i; }; +struct dlm_device_version { + __u32 version[3]; +}; + /* struct read from the "device" fd, consists mainly of userspace pointers for the library to use */ + struct dlm_lock_result { + __u32 version[3]; __u32 length; void __user * user_astaddr; void __user * user_astparam; -- cgit v1.2.3 From c85d65e91430db94ae9ce0cf38b56e496658b642 Mon Sep 17 00:00:00 2001 From: David Teigland Date: Fri, 18 May 2007 09:01:26 -0500 Subject: [DLM] cancel in conversion deadlock [4/6] When conversion deadlock is detected, cancel the conversion and return EDEADLK to the application. This is a new default behavior where before the dlm would allow the deadlock to exist indefinately. The DLM_LKF_NODLCKWT flag can now be used in a conversion to prevent the dlm from performing conversion deadlock detection/cancelation on it. The DLM_LKF_CONVDEADLK flag can continue to be used as before to tell the dlm to demote the granted mode of the lock being converted if it gets into a conversion deadlock. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- include/linux/dlm.h | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/dlm.h b/include/linux/dlm.h index 975f17d8aa53..5227a9594f9d 100644 --- a/include/linux/dlm.h +++ b/include/linux/dlm.h @@ -85,7 +85,11 @@ * Only relevant to locks originating in userspace. A persistent lock will not * be removed if the process holding the lock exits. * - * DLM_LKF_NODLKWT + * DLM_LKF_NODLCKWT + * + * Do not cancel the lock if it gets into conversion deadlock. + * Exclude this lock from being monitored due to DLM_LSFL_TIMEWARN. + * * DLM_LKF_NODLCKBLK * * net yet implemented -- cgit v1.2.3 From 518bbde33f7a6b4e252ea2591c77ef796065afa8 Mon Sep 17 00:00:00 2001 From: Fabio Massimo Di Nitto Date: Tue, 22 May 2007 09:00:24 +0200 Subject: [GFS2] latest gfs2-nmw headers break userland build MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 2e8701a15cd6f7c95e74d6660615a69b09e453ef commit breaks libgfs2 build: gcc -Wall -I/usr/src/ubuntu/mypkgs/rhcluster/cluster/config -DHELPER_PROGRAM -D_FILE_OFFSET_BITS=64 -DGFS2_RELEASE_NAME=\"2.0\" -ggdb -I/usr/include -I../include -I../libgfs2 -c -o gfs2hex.o gfs2hex.c In file included from hexedit.h:22, from gfs2hex.c:27: /usr/include/linux/gfs2_ondisk.h:505: error: expected specifier-qualifier-list before ‘u32’ make[2]: *** [gfs2hex.o] Error 1 make[2]: Leaving directory `/usr/src/ubuntu/mypkgs/rhcluster/cluster/gfs2/edit' make[1]: *** [all] Error 2 make[1]: Leaving directory `/usr/src/ubuntu/mypkgs/rhcluster/cluster/gfs2' make: *** [gfs2] Error 2 Signed-off-by: Fabio Massimo Di Nitto Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index 028f9810ba07..9ecf92941b23 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -502,7 +502,7 @@ struct gfs2_quota_change_host { struct gfs2_quota_lvb { __be32 qb_magic; - u32 __pad; + __u32 __pad; __be64 qb_limit; /* Hard limit of # blocks to alloc */ __be64 qb_warn; /* Warn user when alloc is above this # */ __be64 qb_value; /* Current # blocks allocated */ -- cgit v1.2.3 From 8b4021fa436f7c76a2299e6d85d4d4a619724e9a Mon Sep 17 00:00:00 2001 From: David Teigland Date: Tue, 29 May 2007 08:46:00 -0500 Subject: [DLM] canceling deadlocked lock Add a function that can be used through libdlm by a system daemon to cancel another process's deadlocked lock. A completion ast with EDEADLK is returned to the process waiting for the lock. Signed-off-by: David Teigland Signed-off-by: Steven Whitehouse --- include/linux/dlm_device.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/dlm_device.h b/include/linux/dlm_device.h index f7b9b57348a8..9642277a152a 100644 --- a/include/linux/dlm_device.h +++ b/include/linux/dlm_device.h @@ -92,6 +92,7 @@ struct dlm_lock_result { #define DLM_USER_CREATE_LOCKSPACE 4 #define DLM_USER_REMOVE_LOCKSPACE 5 #define DLM_USER_PURGE 6 +#define DLM_USER_DEADLOCK 7 /* Arbitrary length restriction */ #define MAX_LS_NAME_LEN 64 -- cgit v1.2.3 From 1990e917651d58a3c5155d0491431c09e29e385b Mon Sep 17 00:00:00 2001 From: Abhijith Das Date: Thu, 31 May 2007 17:52:02 -0500 Subject: [GFS2] Quotas non-functional - fix another bug This patch fixes a bug where gfs2 was writing update quota usage information to the wrong location in the quota file. Signed-off-by: Abhijith Das Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index 9ecf92941b23..01cc35946a9d 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -519,6 +519,7 @@ extern void gfs2_rindex_out(const struct gfs2_rindex_host *ri, void *buf); extern void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf); extern void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf); extern void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf); +extern void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf); struct gfs2_inode; extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf); extern void gfs2_ea_header_in(struct gfs2_ea_header *ea, const void *buf); -- cgit v1.2.3 From bb8d8a6f54c1c84d7c74623491bab043b36a38c5 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Fri, 1 Jun 2007 14:11:58 +0100 Subject: [GFS2] Fix sign problem in quota/statfs and cleanup _host structures This patch fixes some sign issues which were accidentally introduced into the quota & statfs code during the endianess annotation process. Also included is a general clean up which moves all of the _host structures out of gfs2_ondisk.h (where they should not have been to start with) and into the places where they are actually used (often only one place). Also those _host structures which are not required any more are removed entirely (which is the eventual plan for all of them). The conversion routines from ondisk.c are also moved into the places where they are actually used, which for almost every one, was just one single place, so all those are now static functions. This also cleans up the end of gfs2_ondisk.h which no longer needs the #ifdef __KERNEL__. The net result is a reduction of about 100 lines of code, many functions now marked static plus the bug fixes as mentioned above. For good measure I ran the code through sparse after making these changes to check that there are no warnings generated. This fixes Red Hat bz #239686 Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 127 -------------------------------------------- 1 file changed, 127 deletions(-) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index 01cc35946a9d..2c4e24fb0765 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -54,11 +54,6 @@ struct gfs2_inum { __be64 no_addr; }; -struct gfs2_inum_host { - __u64 no_formal_ino; - __u64 no_addr; -}; - /* * Generic metadata head structure * Every inplace buffer logged in the journal must start with this. @@ -87,12 +82,6 @@ struct gfs2_meta_header { __be32 __pad1; /* Was incarnation number in gfs1 */ }; -struct gfs2_meta_header_host { - __u32 mh_magic; - __u32 mh_type; - __u32 mh_format; -}; - /* * super-block structure * @@ -132,23 +121,6 @@ struct gfs2_sb { /* In gfs1, quota and license dinodes followed */ }; -struct gfs2_sb_host { - struct gfs2_meta_header_host sb_header; - - __u32 sb_fs_format; - __u32 sb_multihost_format; - - __u32 sb_bsize; - __u32 sb_bsize_shift; - - struct gfs2_inum_host sb_master_dir; /* Was jindex dinode in gfs1 */ - struct gfs2_inum_host sb_root_dir; - - char sb_lockproto[GFS2_LOCKNAME_LEN]; - char sb_locktable[GFS2_LOCKNAME_LEN]; - /* In gfs1, quota and license dinodes followed */ -}; - /* * resource index structure */ @@ -166,14 +138,6 @@ struct gfs2_rindex { __u8 ri_reserved[64]; }; -struct gfs2_rindex_host { - __u64 ri_addr; /* grp block disk address */ - __u64 ri_data0; /* first data location */ - __u32 ri_length; /* length of rgrp header in fs blocks */ - __u32 ri_data; /* num of data blocks in rgrp */ - __u32 ri_bitbytes; /* number of bytes in data bitmaps */ -}; - /* * resource group header structure */ @@ -205,13 +169,6 @@ struct gfs2_rgrp { __u8 rg_reserved[80]; /* Several fields from gfs1 now reserved */ }; -struct gfs2_rgrp_host { - __u32 rg_flags; - __u32 rg_free; - __u32 rg_dinodes; - __u64 rg_igeneration; -}; - /* * quota structure */ @@ -223,12 +180,6 @@ struct gfs2_quota { __u8 qu_reserved[64]; }; -struct gfs2_quota_host { - __u64 qu_limit; - __u64 qu_warn; - __u64 qu_value; -}; - /* * dinode structure */ @@ -312,27 +263,6 @@ struct gfs2_dinode { __u8 di_reserved[56]; }; -struct gfs2_dinode_host { - __u64 di_size; /* number of bytes in file */ - __u64 di_blocks; /* number of blocks in file */ - - /* This section varies from gfs1. Padding added to align with - * remainder of dinode - */ - __u64 di_goal_meta; /* rgrp to alloc from next */ - __u64 di_goal_data; /* data block goal */ - __u64 di_generation; /* generation number for NFS */ - - __u32 di_flags; /* GFS2_DIF_... */ - __u16 di_height; /* height of metadata */ - - /* These only apply to directories */ - __u16 di_depth; /* Number of bits in the table */ - __u32 di_entries; /* The number of entries in the directory */ - - __u64 di_eattr; /* extended attribute block number */ -}; - /* * directory structure - many of these per directory file */ @@ -407,16 +337,6 @@ struct gfs2_log_header { __be32 lh_hash; }; -struct gfs2_log_header_host { - struct gfs2_meta_header_host lh_header; - - __u64 lh_sequence; /* Sequence number of this transaction */ - __u32 lh_flags; /* GFS2_LOG_HEAD_... */ - __u32 lh_tail; /* Block number of log tail */ - __u32 lh_blkno; - __u32 lh_hash; -}; - /* * Log type descriptor */ @@ -457,11 +377,6 @@ struct gfs2_inum_range { __be64 ir_length; }; -struct gfs2_inum_range_host { - __u64 ir_start; - __u64 ir_length; -}; - /* * Statfs change * Describes an change to the pool of free and allocated @@ -474,12 +389,6 @@ struct gfs2_statfs_change { __be64 sc_dinodes; }; -struct gfs2_statfs_change_host { - __u64 sc_total; - __u64 sc_free; - __u64 sc_dinodes; -}; - /* * Quota change * Describes an allocation change for a particular @@ -494,12 +403,6 @@ struct gfs2_quota_change { __be32 qc_id; }; -struct gfs2_quota_change_host { - __u64 qc_change; - __u32 qc_flags; /* GFS2_QCF_... */ - __u32 qc_id; -}; - struct gfs2_quota_lvb { __be32 qb_magic; __u32 __pad; @@ -508,34 +411,4 @@ struct gfs2_quota_lvb { __be64 qb_value; /* Current # blocks allocated */ }; -#ifdef __KERNEL__ -/* Translation functions */ -struct gfs2_inode; - -extern void gfs2_inum_out(const struct gfs2_inode *ip, struct gfs2_dirent *dent); -extern void gfs2_sb_in(struct gfs2_sb_host *sb, const void *buf); -extern void gfs2_rindex_in(struct gfs2_rindex_host *ri, const void *buf); -extern void gfs2_rindex_out(const struct gfs2_rindex_host *ri, void *buf); -extern void gfs2_rgrp_in(struct gfs2_rgrp_host *rg, const void *buf); -extern void gfs2_rgrp_out(const struct gfs2_rgrp_host *rg, void *buf); -extern void gfs2_quota_in(struct gfs2_quota_host *qu, const void *buf); -extern void gfs2_quota_out(const struct gfs2_quota_host *qu, void *buf); -struct gfs2_inode; -extern void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf); -extern void gfs2_ea_header_in(struct gfs2_ea_header *ea, const void *buf); -extern void gfs2_ea_header_out(const struct gfs2_ea_header *ea, void *buf); -extern void gfs2_log_header_in(struct gfs2_log_header_host *lh, const void *buf); -extern void gfs2_inum_range_in(struct gfs2_inum_range_host *ir, const void *buf); -extern void gfs2_inum_range_out(const struct gfs2_inum_range_host *ir, void *buf); -extern void gfs2_statfs_change_in(struct gfs2_statfs_change_host *sc, const void *buf); -extern void gfs2_statfs_change_out(const struct gfs2_statfs_change_host *sc, void *buf); -extern void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *buf); - -/* Printing functions */ - -extern void gfs2_rindex_print(const struct gfs2_rindex_host *ri); -extern void gfs2_dinode_print(const struct gfs2_inode *ip); - -#endif /* __KERNEL__ */ - #endif /* __GFS2_ONDISK_DOT_H__ */ -- cgit v1.2.3 From 4bd91ba18198eee42c39d4c334c825d1a0a4b445 Mon Sep 17 00:00:00 2001 From: Steven Whitehouse Date: Tue, 5 Jun 2007 09:39:18 +0100 Subject: [GFS2] Add nanosecond timestamp feature This adds a nanosecond timestamp feature to the GFS2 filesystem. Due to the way that the on-disk format works, older filesystems will just appear to have this field set to zero. When mounted by an older version of GFS2, the filesystem will simply ignore the extra fields so that it will again appear to have whole second resolution, so that its trivially backward compatible. Signed-off-by: Steven Whitehouse --- include/linux/gfs2_ondisk.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/gfs2_ondisk.h b/include/linux/gfs2_ondisk.h index 2c4e24fb0765..a44a6a078f0a 100644 --- a/include/linux/gfs2_ondisk.h +++ b/include/linux/gfs2_ondisk.h @@ -259,8 +259,11 @@ struct gfs2_dinode { struct gfs2_inum __pad4; /* Unused even in current gfs1 */ __be64 di_eattr; /* extended attribute block number */ + __be32 di_atime_nsec; /* nsec portion of atime */ + __be32 di_mtime_nsec; /* nsec portion of mtime */ + __be32 di_ctime_nsec; /* nsec portion of ctime */ - __u8 di_reserved[56]; + __u8 di_reserved[44]; }; /* -- cgit v1.2.3 From 44f487a5536a3afd96a9f571de24c36559e9ae82 Mon Sep 17 00:00:00 2001 From: Patrick Caulfield Date: Wed, 6 Jun 2007 09:21:22 -0500 Subject: [DLM] variable allocation Add a new flag, DLM_LSFL_FS, to be used when a file system creates a lockspace. This flag causes the dlm to use GFP_NOFS for allocations instead of GFP_KERNEL. (This updated version of the patch uses gfp_t for ls_allocation.) Signed-Off-By: Patrick Caulfield Signed-Off-By: David Teigland Signed-off-by: Steven Whitehouse --- include/linux/dlm.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/dlm.h b/include/linux/dlm.h index 5227a9594f9d..be9d278761e0 100644 --- a/include/linux/dlm.h +++ b/include/linux/dlm.h @@ -206,6 +206,7 @@ struct dlm_lksb { #define DLM_LSFL_NODIR 0x00000001 #define DLM_LSFL_TIMEWARN 0x00000002 +#define DLM_LSFL_FS 0x00000004 #ifdef __KERNEL__ -- cgit v1.2.3 From 58037eb961f859607b161c50d9d4ecb374de1e8f Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Wed, 30 May 2007 15:07:13 +0200 Subject: HID: make debugging output runtime-configurable There have been many reports recently about broken HID devices, the diagnosis of which required users to recompile their kernels in order to be able to provide debugging output needed for coding a quirk for a particular device. This patch makes CONFIG_HID_DEBUG default y if !EMBEDDED and makes it possible to control debugging output produced by HID code by supplying 'debug=1' module parameter. Signed-off-by: Jiri Kosina --- include/linux/hid.h | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index 827ee748fd4c..eb53d9a9ae54 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -488,6 +488,11 @@ struct hid_descriptor { #define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001)) /* HID core API */ + +#ifdef CONFIG_HID_DEBUG +extern int hid_debug; +#endif + extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct hid_usage *, __s32); extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report); extern int hidinput_connect(struct hid_device *); @@ -523,14 +528,19 @@ static inline int hid_pidff_init(struct hid_device *hid) { return -ENODEV; } #else static inline int hid_ff_init(struct hid_device *hid) { return -1; } #endif -#ifdef DEBUG -#define dbg(format, arg...) printk(KERN_DEBUG "%s: " format "\n" , \ - __FILE__ , ## arg) + +#ifdef CONFIG_HID_DEBUG +#define dbg_hid(format, arg...) if (hid_debug) \ + printk(KERN_DEBUG "%s: " format ,\ + __FILE__ , ## arg) +#define dbg_hid_line(format, arg...) if (hid_debug) \ + printk(format, ## arg) #else -#define dbg(format, arg...) do {} while (0) +#define dbg_hid(format, arg...) do {} while (0) +#define dbg_hid_line dbg_hid #endif -#define err(format, arg...) printk(KERN_ERR "%s: " format "\n" , \ +#define err_hid(format, arg...) printk(KERN_ERR "%s: " format "\n" , \ __FILE__ , ## arg) #endif -- cgit v1.2.3 From defd208681b721dbf2b69347cca5302d60246405 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Sat, 19 May 2007 16:28:04 +0200 Subject: HID: force hid-input for Microsoft SideWinder GameVoice device Microsoft SideWinder GameVoice driver is a trivial device with a few buttons (0x09 HID usage) and an audio connector, which just forwards the audio input into oridinary sound card present in the computer. Despite this fact, the only interface of this device reports itself as a Telephony/Headset type of HID device. This is apparently incorrect - the device itself doesn't provide any audio/telephony functionality. This is achieved in userland application which only needs to receive the button events from the HID driver. This patch establishes a new quirk which forces hid-input to claim a device it will otherwise leave untouched. Reported-by: Tomas Carnecky Signed-off-by: Jiri Kosina --- include/linux/hid.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index 827ee748fd4c..6e45d1056e1b 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -276,6 +276,7 @@ struct hid_item { #define HID_QUIRK_DUPLICATE_USAGES 0x00200000 #define HID_QUIRK_RESET_LEDS 0x00400000 #define HID_QUIRK_SWAPPED_MIN_MAX 0x00800000 +#define HID_QUIRK_HIDINPUT 0x01000000 /* * This is the global environment of the parser. This information is -- cgit v1.2.3 From 92d9e6e607eb7f8f1d2a43935f45cf300cf6fdf8 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Mon, 18 Jun 2007 13:30:11 +0200 Subject: HID: support for Petalynx Maxter remote control Petalynx Maxter remote control [1] 0x18b1/0x0037 emits 0xfa and 0xfc from consumer page (reserved in HUT 1.12) for back and more keys. It also emits a few usages from LOGIVENDOR page, which need adding. Also, this device has broken report descriptor - the reported maximum is too low - it doesn't contain the range for 'back' and 'more' keys, so we need to bump it up before the report descriptor is being parsed. Besides all this, it also requires NOGET quirk. This patch does so. [1] http://www.elmak.pl/index.php?option=com_phpshop&page=shop.browse&category_id=14&ext=opis&lang=en Signed-off-by: Jiri Kosina --- include/linux/hid.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index 6e45d1056e1b..e41067951dd9 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -277,6 +277,7 @@ struct hid_item { #define HID_QUIRK_RESET_LEDS 0x00400000 #define HID_QUIRK_SWAPPED_MIN_MAX 0x00800000 #define HID_QUIRK_HIDINPUT 0x01000000 +#define HID_QUIRK_PETALYNX_DESCRIPTOR 0x02000000 /* * This is the global environment of the parser. This information is -- cgit v1.2.3 From ea9a4a8b0e5a34eca6613e39d21be879d92ecff5 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Tue, 19 Jun 2007 14:09:14 +0200 Subject: HID: separate quirks for report descriptor fixup Lately there have been quite a lot of bug reports against broken devices which require us to fix their report descriptor in the runtime, before it is passed to the HID parser. Those devices have eaten quite an amount of our quirks space, which isn't particularly necessary - the quirks are not needed after the report descriptor is parsed, and they just consume bits. Therefore this patch separates the quirks for report descriptor fixup, and moves their handling into separate code. The quirks are then forgotten as soon as the report descriptor has been parsed. Module parameter 'rdesc_quirks' is introduced to be able to modify these quirks in runtime in a similar way to 'quirks' parameter for ordinary HID quirks. Signed-off-by: Jiri Kosina --- include/linux/hid.h | 36 +++++++++++++++++++++--------------- 1 file changed, 21 insertions(+), 15 deletions(-) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index e41067951dd9..4daf5eea78a1 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -263,21 +263,26 @@ struct hid_item { #define HID_QUIRK_2WHEEL_MOUSE_HACK_5 0x00000100 #define HID_QUIRK_2WHEEL_MOUSE_HACK_ON 0x00000200 #define HID_QUIRK_MIGHTYMOUSE 0x00000400 -#define HID_QUIRK_CYMOTION 0x00000800 -#define HID_QUIRK_POWERBOOK_HAS_FN 0x00001000 -#define HID_QUIRK_POWERBOOK_FN_ON 0x00002000 -#define HID_QUIRK_INVERT_HWHEEL 0x00004000 -#define HID_QUIRK_POWERBOOK_ISO_KEYBOARD 0x00008000 -#define HID_QUIRK_BAD_RELATIVE_KEYS 0x00010000 -#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00020000 -#define HID_QUIRK_IGNORE_MOUSE 0x00040000 -#define HID_QUIRK_SONY_PS3_CONTROLLER 0x00080000 -#define HID_QUIRK_LOGITECH_DESCRIPTOR 0x00100000 -#define HID_QUIRK_DUPLICATE_USAGES 0x00200000 -#define HID_QUIRK_RESET_LEDS 0x00400000 -#define HID_QUIRK_SWAPPED_MIN_MAX 0x00800000 -#define HID_QUIRK_HIDINPUT 0x01000000 -#define HID_QUIRK_PETALYNX_DESCRIPTOR 0x02000000 +#define HID_QUIRK_POWERBOOK_HAS_FN 0x00000800 +#define HID_QUIRK_POWERBOOK_FN_ON 0x00001000 +#define HID_QUIRK_INVERT_HWHEEL 0x00002000 +#define HID_QUIRK_POWERBOOK_ISO_KEYBOARD 0x00004000 +#define HID_QUIRK_BAD_RELATIVE_KEYS 0x00008000 +#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000 +#define HID_QUIRK_IGNORE_MOUSE 0x00020000 +#define HID_QUIRK_SONY_PS3_CONTROLLER 0x00040000 +#define HID_QUIRK_DUPLICATE_USAGES 0x00080000 +#define HID_QUIRK_RESET_LEDS 0x00100000 +#define HID_QUIRK_HIDINPUT 0x00200000 + +/* + * Separate quirks for runtime report descriptor fixup + */ + +#define HID_QUIRK_RDESC_CYMOTION 0x00000001 +#define HID_QUIRK_RDESC_LOGITECH 0x00000002 +#define HID_QUIRK_RDESC_SWAPPED_MIN_MAX 0x00000004 +#define HID_QUIRK_RDESC_PETALYNX 0x00000008 /* * This is the global environment of the parser. This information is @@ -508,6 +513,7 @@ u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct); int usbhid_modify_dquirk(const u16 idVendor, const u16 idProduct, const u32 quirks); int usbhid_quirks_init(char **quirks_param); void usbhid_quirks_exit(void); +void usbhid_fixup_report_descriptor(const u16, const u16, char *, unsigned, char **); #ifdef CONFIG_HID_FF int hid_ff_init(struct hid_device *hid); -- cgit v1.2.3 From 5f9c464aaa1ba3a773c47004e98eb1f3aa2ab2a4 Mon Sep 17 00:00:00 2001 From: Ryo Dairiki Date: Mon, 25 Jun 2007 10:31:12 +0200 Subject: HID: support for logitech cordless desktop LX500 special mapping This keyboard has wireless mouse which has left, middle, right buttons and 2-dimensional scrolling wheel. Unfornetuly, this wheel reports side scrolling events and 11 or 12 button events at the same time. I've wrote a patch to fix this mapping. I'm not sure if this mapping is proper for buttons, because , for example, there is no entry for "burn cd" in input.h. The patch also supress 11 and 12 button events from mouse when you scroll the wheel left and right. With this patch, only side scrolling events are reported. (This mouse has only 4 buttons and 2D wheel. There is no such buttons like 11 and 12.) Signed-off-by: Jiri Kosina --- include/linux/hid.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hid.h b/include/linux/hid.h index 4daf5eea78a1..44b64f0d0555 100644 --- a/include/linux/hid.h +++ b/include/linux/hid.h @@ -274,6 +274,8 @@ struct hid_item { #define HID_QUIRK_DUPLICATE_USAGES 0x00080000 #define HID_QUIRK_RESET_LEDS 0x00100000 #define HID_QUIRK_HIDINPUT 0x00200000 +#define HID_QUIRK_LOGITECH_IGNORE_DOUBLED_WHEEL 0x00400000 +#define HID_QUIRK_LOGITECH_EXPANDED_KEYMAP 0x00800000 /* * Separate quirks for runtime report descriptor fixup -- cgit v1.2.3 From fafbae87db88a73b166d3bc3294d209207f27056 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 15 May 2007 03:28:16 +0900 Subject: libata-acpi: implement ata_acpi_associate() * Add acpi_handle to ata_host and ata_port. Rename ata_device->obj_handle to ->acpi_handle and move it above such that it doesn't get cleared on reconfiguration. * Replace ACPI node association which ata_acpi_associate() which is called once during host initialization. Unlike the previous implementation, ata_acpi_associate() uses ATA_FLAG_ACPI_SATA to choose between IDE or SATA ACPI hierarchy and uses simple child look up instead of recursive walk to match the nodes. This is way safer and simpler. Please read the following message for more info. http://article.gmane.org/gmane.linux.ide/17554 Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- include/linux/libata.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/libata.h b/include/linux/libata.h index 620da7be07b7..d758168ee45d 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -363,6 +363,9 @@ struct ata_host { void *private_data; const struct ata_port_operations *ops; unsigned long flags; +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; +#endif struct ata_port *simplex_claimed; /* channel owning the DMA */ struct ata_port *ports[0]; }; @@ -429,6 +432,9 @@ struct ata_device { unsigned int devno; /* 0 or 1 */ unsigned long flags; /* ATA_DFLAG_xxx */ struct scsi_device *sdev; /* attached SCSI device */ +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; +#endif /* n_sector is used as CLEAR_OFFSET, read comment above CLEAR_OFFSET */ u64 n_sectors; /* size of device, if ATA */ unsigned int class; /* ATA_DEV_xxx */ @@ -457,10 +463,6 @@ struct ata_device { struct ata_ering ering; int spdn_cnt; unsigned int horkage; /* List of broken features */ -#ifdef CONFIG_ATA_ACPI - /* ACPI objects info */ - acpi_handle obj_handle; -#endif }; /* Offset into struct ata_device. Fields above it are maintained @@ -549,6 +551,9 @@ struct ata_port { void *private_data; +#ifdef CONFIG_ATA_ACPI + acpi_handle acpi_handle; +#endif u8 sector_buf[ATA_SECT_SIZE]; /* owned by EH */ }; -- cgit v1.2.3 From 6746544c3b143ca7071d144f1882ccbe1f47b08d Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 15 May 2007 03:28:16 +0900 Subject: libata: reimplement ACPI invocation This patch reimplements ACPI invocation such that, instead of exporting ACPI details to the rest of libata, ACPI event handlers - ata_acpi_on_resume() and ata_acpi_on_devcfg() - are used. These two functions are responsible for determining whether specific ACPI method is used and when. On resume, _GTF is scheduled by setting ATA_DFLAG_ACPI_PENDING device flag. This is done this way to avoid performing the action on wrong device device (device swapping while suspended). On every ata_dev_configure(), ata_acpi_on_devcfg() is called, which performs _SDD and _GTF. _GTF is performed only after resuming and, if SATA, hardreset as the ACPI spec specifies. As _GTF may contain arbitrary commands, IDENTIFY page is re-read after _GTF taskfiles are executed. If one of ACPI methods fails, ata_acpi_on_devcfg() retries on the first failure. If it fails again on the second try, ACPI is disabled on the device. Note that successful configuration clears ACPI failed status. With all feature checks moved to the above two functions, do_drive_set_taskfiles() is trivial and thus collapsed into ata_acpi_exec_tfs(), which is now static and converted to return the number of executed taskfiles to be used by ata_acpi_on_resume(). As failures are handled properly, ata_acpi_push_id() now returns -errno on errors instead of unconditional zero. Signed-off-by: Tejun Heo Signed-off-by: Jeff Garzik --- include/linux/libata.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/libata.h b/include/linux/libata.h index d758168ee45d..0c4f63b55ec6 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -136,6 +136,8 @@ enum { ATA_DFLAG_CDB_INTR = (1 << 2), /* device asserts INTRQ when ready for CDB */ ATA_DFLAG_NCQ = (1 << 3), /* device supports NCQ */ ATA_DFLAG_FLUSH_EXT = (1 << 4), /* do FLUSH_EXT instead of FLUSH */ + ATA_DFLAG_ACPI_PENDING = (1 << 5), /* ACPI resume action pending */ + ATA_DFLAG_ACPI_FAILED = (1 << 6), /* ACPI on devcfg has failed */ ATA_DFLAG_CFG_MASK = (1 << 8) - 1, ATA_DFLAG_PIO = (1 << 8), /* device limited to PIO mode */ -- cgit v1.2.3 From 64578a3de723d502621860f9d4d28f34d001b066 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 15 May 2007 03:28:16 +0900 Subject: libata-acpi: implement _GTM/_STM support Implement _GTM/_STM support. acpi_gtm is added to ata_port which stores _GTM parameters over suspend/resume cycle. A new hook ata_acpi_on_suspend() is responsible for storing _GTM parameters during suspend. _STM is executed in ata_acpi_on_resume(). With this change, invoking _GTF is safe on IDE hierarchy and acpi_sata check before _GTF is removed. ata_acpi_gtm() and ata_acpi_stm() implementation is taken from Alan Cox's pata_acpi implementation. ata_acpi_gtm() is fixed such that the result parameter is not shifted by sizeof(union acpi_object). Signed-off-by: Tejun Heo Cc: Alan Cox Signed-off-by: Jeff Garzik --- include/linux/libata.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/libata.h b/include/linux/libata.h index 0c4f63b55ec6..8d3e391ab8d3 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -198,6 +198,7 @@ enum { ATA_PFLAG_FLUSH_PORT_TASK = (1 << 16), /* flush port task */ ATA_PFLAG_SUSPENDED = (1 << 17), /* port is suspended (power) */ ATA_PFLAG_PM_PENDING = (1 << 18), /* PM operation pending */ + ATA_PFLAG_GTM_VALID = (1 << 19), /* acpi_gtm data valid */ /* struct ata_queued_cmd flags */ ATA_QCFLAG_ACTIVE = (1 << 0), /* cmd not yet ack'd to scsi lyer */ @@ -493,6 +494,17 @@ struct ata_eh_context { unsigned int did_probe_mask; }; +struct ata_acpi_drive +{ + u32 pio; + u32 dma; +} __packed; + +struct ata_acpi_gtm { + struct ata_acpi_drive drive[2]; + u32 flags; +} __packed; + struct ata_port { struct Scsi_Host *scsi_host; /* our co-allocated scsi host */ const struct ata_port_operations *ops; @@ -555,6 +567,7 @@ struct ata_port { #ifdef CONFIG_ATA_ACPI acpi_handle acpi_handle; + struct ata_acpi_gtm acpi_gtm; #endif u8 sector_buf[ATA_SECT_SIZE]; /* owned by EH */ }; -- cgit v1.2.3 From ab2181cf390902f0371f30e4ebeb407b4aaa7314 Mon Sep 17 00:00:00 2001 From: Jeff Garzik Date: Mon, 28 May 2007 08:30:36 -0400 Subject: [ATA] Add named constant for ATAPI command DEVICE RESET Signed-off-by: Jeff Garzik --- include/linux/ata.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/ata.h b/include/linux/ata.h index 703febb2df31..407dc7e098bc 100644 --- a/include/linux/ata.h +++ b/include/linux/ata.h @@ -126,6 +126,7 @@ enum { ATA_REG_IRQ = ATA_REG_NSECT, /* ATA device commands */ + ATA_CMD_DEV_RESET = 0x08, /* ATAPI device reset */ ATA_CMD_CHK_POWER = 0xE5, /* check power mode */ ATA_CMD_STANDBY = 0xE2, /* place in standby power mode */ ATA_CMD_IDLE = 0xE3, /* place in idle power mode */ -- cgit v1.2.3 From 5f45bc50976ee1f408f7171af155aec646655a37 Mon Sep 17 00:00:00 2001 From: Sonic Zhang Date: Fri, 15 Jun 2007 17:45:49 +0800 Subject: Add irq_flags to struct pata_platform_info On some embedded platforms, such as blackfin, the gpio interrupt for IDE interface is designed to be triggered with high voltage. The gpio port should be configured properly by set_irq_type() when register the irq. This patch enable the generic pata platform driver to accept platform irq flags data. Signed-off-by: Sonic Zhang Signed-off-by: Jeff Garzik --- include/linux/pata_platform.h | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pata_platform.h b/include/linux/pata_platform.h index 2d5fd647e0e9..5799e8d50623 100644 --- a/include/linux/pata_platform.h +++ b/include/linux/pata_platform.h @@ -8,6 +8,11 @@ struct pata_platform_info { * spacing used by ata_std_ports(). */ unsigned int ioport_shift; + /* + * Indicate platform specific irq types and initial + * IRQ flags when call request_irq() + */ + unsigned int irq_flags; }; #endif /* __LINUX_PATA_PLATFORM_H */ -- cgit v1.2.3 From d26fc9551a15fdad0d5de8376a78816b8af44f00 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Fri, 6 Jul 2007 19:13:52 -0400 Subject: libata: Support chips with 64K PRD quirk Add ata_dumb_qc_prep and supporting logic so that a driver can just specify it needs to be helped in this area. 64K entries are split as with drivers/ide. Signed-off-by: Alan Cox Signed-off-by: Jeff Garzik --- include/linux/libata.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/libata.h b/include/linux/libata.h index 8d3e391ab8d3..a3df64677ac3 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -116,6 +116,7 @@ static inline struct device *pci_dev_to_dev(struct pci_dev *pdev) enum { /* various global constants */ LIBATA_MAX_PRD = ATA_MAX_PRD / 2, + LIBATA_DUMB_MAX_PRD = ATA_MAX_PRD / 4, /* Worst case */ ATA_MAX_PORTS = 8, ATA_DEF_QUEUE = 1, /* tag ATA_MAX_QUEUE - 1 is reserved for internal commands */ @@ -778,6 +779,7 @@ extern void ata_data_xfer(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data); extern void ata_data_xfer_noirq(struct ata_device *adev, unsigned char *buf, unsigned int buflen, int write_data); +extern void ata_dumb_qc_prep(struct ata_queued_cmd *qc); extern void ata_qc_prep(struct ata_queued_cmd *qc); extern void ata_noop_qc_prep(struct ata_queued_cmd *qc); extern unsigned int ata_qc_issue_prot(struct ata_queued_cmd *qc); -- cgit v1.2.3 From d15bcfdbe1818478891d714343f037cfe60875f0 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:57 +0200 Subject: sched: rename idle_type/SCHED_IDLE enum idle_type (used by the load-balancer) clashes with the SCHED_IDLE name that we want to introduce. 'CPU_IDLE' instead of 'SCHED_IDLE' is more descriptive as well. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 27 +++++++++++++-------------- 1 file changed, 13 insertions(+), 14 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 693f0e6c54d4..2acfb23f3681 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -639,12 +639,11 @@ static inline int sched_info_on(void) #endif } -enum idle_type -{ - SCHED_IDLE, - NOT_IDLE, - NEWLY_IDLE, - MAX_IDLE_TYPES +enum cpu_idle_type { + CPU_IDLE, + CPU_NOT_IDLE, + CPU_NEWLY_IDLE, + CPU_MAX_IDLE_TYPES }; /* @@ -719,14 +718,14 @@ struct sched_domain { #ifdef CONFIG_SCHEDSTATS /* load_balance() stats */ - unsigned long lb_cnt[MAX_IDLE_TYPES]; - unsigned long lb_failed[MAX_IDLE_TYPES]; - unsigned long lb_balanced[MAX_IDLE_TYPES]; - unsigned long lb_imbalance[MAX_IDLE_TYPES]; - unsigned long lb_gained[MAX_IDLE_TYPES]; - unsigned long lb_hot_gained[MAX_IDLE_TYPES]; - unsigned long lb_nobusyg[MAX_IDLE_TYPES]; - unsigned long lb_nobusyq[MAX_IDLE_TYPES]; + unsigned long lb_cnt[CPU_MAX_IDLE_TYPES]; + unsigned long lb_failed[CPU_MAX_IDLE_TYPES]; + unsigned long lb_balanced[CPU_MAX_IDLE_TYPES]; + unsigned long lb_imbalance[CPU_MAX_IDLE_TYPES]; + unsigned long lb_gained[CPU_MAX_IDLE_TYPES]; + unsigned long lb_hot_gained[CPU_MAX_IDLE_TYPES]; + unsigned long lb_nobusyg[CPU_MAX_IDLE_TYPES]; + unsigned long lb_nobusyq[CPU_MAX_IDLE_TYPES]; /* Active load balancing */ unsigned long alb_cnt; -- cgit v1.2.3 From 0e6aca43e08a62a48d6770e9a159dbec167bf4c6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:57 +0200 Subject: sched: add SCHED_IDLE policy this patch adds the SCHED_IDLE policy to sched.h. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 2acfb23f3681..7e74262f98e1 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -34,6 +34,8 @@ #define SCHED_FIFO 1 #define SCHED_RR 2 #define SCHED_BATCH 3 +/* SCHED_ISO: reserved but not implemented yet */ +#define SCHED_IDLE 5 #ifdef __KERNEL__ -- cgit v1.2.3 From 0437e109e1841607f2988891eaa36c531c6aa6ac Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:57 +0200 Subject: sched: zap the migration init / cache-hot balancing code the SMP load-balancer uses the boot-time migration-cost estimation code to attempt to improve the quality of balancing. The reason for this code is that the discrete priority queues do not preserve the order of scheduling accurately, so the load-balancer skips tasks that were running on a CPU 'recently'. this code is fundamental fragile: the boot-time migration cost detector doesnt really work on systems that had large L3 caches, it caused boot delays on large systems and the whole cache-hot concept made the balancing code pretty undeterministic as well. (and hey, i wrote most of it, so i can say it out loud that it sucks ;-) under CFS the same purpose of cache affinity can be achieved without any special cache-hot special-case: tasks are sorted in the 'timeline' tree and the SMP balancer picks tasks from the left side of the tree, thus the most cache-cold task is balanced automatically. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 6 ------ 1 file changed, 6 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 7e74262f98e1..8764cda0feca 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -754,12 +754,6 @@ struct sched_domain { extern int partition_sched_domains(cpumask_t *partition1, cpumask_t *partition2); -/* - * Maximum cache size the migration-costs auto-tuning code will - * search from: - */ -extern unsigned int max_cache_size; - #endif /* CONFIG_SMP */ -- cgit v1.2.3 From c65cc8705256ad7524c97564b4fe3ca9782bf6d1 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: uninline set_task_cpu() uninline set_task_cpu(): CFS will add more code to it. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 8764cda0feca..4b912e753ca0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1633,10 +1633,7 @@ static inline unsigned int task_cpu(const struct task_struct *p) return task_thread_info(p)->cpu; } -static inline void set_task_cpu(struct task_struct *p, unsigned int cpu) -{ - task_thread_info(p)->cpu = cpu; -} +extern void set_task_cpu(struct task_struct *p, unsigned int cpu); #else -- cgit v1.2.3 From 4da1ce6d9c7e2a6d9236bf4dcfd33cf506082794 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: add in_atomic_preempt_off() add in_atomic_preempt_off() - debugging helper that will simplify schedule(). Signed-off-by: Ingo Molnar --- include/linux/hardirq.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'include/linux') diff --git a/include/linux/hardirq.h b/include/linux/hardirq.h index 7803014f3a11..8d302298a161 100644 --- a/include/linux/hardirq.h +++ b/include/linux/hardirq.h @@ -78,6 +78,19 @@ # define in_atomic() ((preempt_count() & ~PREEMPT_ACTIVE) != 0) #endif +#ifdef CONFIG_PREEMPT +# define PREEMPT_CHECK_OFFSET 1 +#else +# define PREEMPT_CHECK_OFFSET 0 +#endif + +/* + * Check whether we were atomic before we did preempt_disable(): + * (used by the scheduler) + */ +#define in_atomic_preempt_off() \ + ((preempt_count() & ~PREEMPT_ACTIVE) != PREEMPT_CHECK_OFFSET) + #ifdef CONFIG_PREEMPT # define preemptible() (preempt_count() == 0 && !irqs_disabled()) # define IRQ_EXIT_OFFSET (HARDIRQ_OFFSET-1) -- cgit v1.2.3 From 1df21055e34b6a68d62cf0c524b9e52deebd7ead Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: add init_idle_bootup_task() add the init_idle_bootup_task() callback to the bootup thread, unused at the moment. (CFS will use it to switch the scheduling class of the boot thread to the idle class) Signed-off-by: Ingo Molnar --- include/linux/sched.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 4b912e753ca0..61a111fe2b7a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -195,6 +195,7 @@ struct task_struct; extern void sched_init(void); extern void sched_init_smp(void); extern void init_idle(struct task_struct *idle, int cpu); +extern void init_idle_bootup_task(struct task_struct *idle); extern cpumask_t nohz_cpu_mask; #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ) -- cgit v1.2.3 From 9aa7b369819940cb1f3c74ba210516739a32ad95 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: increase the resolution of smpnice increase SMP-nice's resolution. This is needed by CFS to implement SCHED_IDLE and cleaned up nice level support. no behavioral changes. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 61a111fe2b7a..d5084e7c48cf 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -652,7 +652,14 @@ enum cpu_idle_type { /* * sched-domains (multiprocessor balancing) declarations: */ -#define SCHED_LOAD_SCALE 128UL /* increase resolution of load */ + +/* + * Increase resolution of nice-level calculations: + */ +#define SCHED_LOAD_SHIFT 10 +#define SCHED_LOAD_SCALE (1L << SCHED_LOAD_SHIFT) + +#define SCHED_LOAD_SCALE_FUZZ (SCHED_LOAD_SCALE >> 5) #ifdef CONFIG_SMP #define SD_LOAD_BALANCE 1 /* Do load balancing on this domain. */ -- cgit v1.2.3 From bf0f6f24a1ece8988b243aefe84ee613099a9245 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: cfs core, kernel/sched_fair.c add kernel/sched_fair.c - which implements the bulk of CFS's behavioral changes for SCHED_OTHER tasks. see Documentation/sched-design-CFS.txt about details. Authors: Ingo Molnar Dmitry Adamushko Srivatsa Vaddagiri Mike Galbraith Signed-off-by: Ingo Molnar Signed-off-by: Mike Galbraith Signed-off-by: Dmitry Adamushko Signed-off-by: Srivatsa Vaddagiri --- include/linux/sched.h | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index d5084e7c48cf..90420321994f 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1243,6 +1243,14 @@ static inline void idle_task_exit(void) {} extern void sched_idle_next(void); +extern unsigned int sysctl_sched_granularity; +extern unsigned int sysctl_sched_wakeup_granularity; +extern unsigned int sysctl_sched_batch_wakeup_granularity; +extern unsigned int sysctl_sched_stat_granularity; +extern unsigned int sysctl_sched_runtime_limit; +extern unsigned int sysctl_sched_child_runs_first; +extern unsigned int sysctl_sched_features; + #ifdef CONFIG_RT_MUTEXES extern int rt_mutex_getprio(struct task_struct *p); extern void rt_mutex_setprio(struct task_struct *p, int prio); -- cgit v1.2.3 From 20b8a59f2461e1be911dce2cfafefab9d22e4eee Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: cfs, core data types add the CFS data types to sched.h. (the old scheduler is still fully intact.) Signed-off-by: Ingo Molnar --- include/linux/sched.h | 82 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 82 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 90420321994f..995eb407c234 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -820,6 +820,86 @@ enum sleep_type { }; struct prio_array; +struct rq; +struct sched_domain; + +struct sched_class { + struct sched_class *next; + + void (*enqueue_task) (struct rq *rq, struct task_struct *p, + int wakeup, u64 now); + void (*dequeue_task) (struct rq *rq, struct task_struct *p, + int sleep, u64 now); + void (*yield_task) (struct rq *rq, struct task_struct *p); + + void (*check_preempt_curr) (struct rq *rq, struct task_struct *p); + + struct task_struct * (*pick_next_task) (struct rq *rq, u64 now); + void (*put_prev_task) (struct rq *rq, struct task_struct *p, u64 now); + + int (*load_balance) (struct rq *this_rq, int this_cpu, + struct rq *busiest, + unsigned long max_nr_move, unsigned long max_load_move, + struct sched_domain *sd, enum cpu_idle_type idle, + int *all_pinned, unsigned long *total_load_moved); + + void (*set_curr_task) (struct rq *rq); + void (*task_tick) (struct rq *rq, struct task_struct *p); + void (*task_new) (struct rq *rq, struct task_struct *p); +}; + +struct load_weight { + unsigned long weight, inv_weight; +}; + +/* + * CFS stats for a schedulable entity (task, task-group etc) + * + * Current field usage histogram: + * + * 4 se->block_start + * 4 se->run_node + * 4 se->sleep_start + * 4 se->sleep_start_fair + * 6 se->load.weight + * 7 se->delta_fair + * 15 se->wait_runtime + */ +struct sched_entity { + long wait_runtime; + unsigned long delta_fair_run; + unsigned long delta_fair_sleep; + unsigned long delta_exec; + s64 fair_key; + struct load_weight load; /* for load-balancing */ + struct rb_node run_node; + unsigned int on_rq; + + u64 wait_start_fair; + u64 wait_start; + u64 exec_start; + u64 sleep_start; + u64 sleep_start_fair; + u64 block_start; + u64 sleep_max; + u64 block_max; + u64 exec_max; + u64 wait_max; + u64 last_ran; + + u64 sum_exec_runtime; + s64 sum_wait_runtime; + s64 sum_sleep_runtime; + unsigned long wait_runtime_overruns; + unsigned long wait_runtime_underruns; +#ifdef CONFIG_FAIR_GROUP_SCHED + struct sched_entity *parent; + /* rq on which this entity is (to be) queued: */ + struct cfs_rq *cfs_rq; + /* rq "owned" by this entity/group: */ + struct cfs_rq *my_q; +#endif +}; struct task_struct { volatile long state; /* -1 unrunnable, 0 runnable, >0 stopped */ @@ -839,6 +919,8 @@ struct task_struct { int prio, static_prio, normal_prio; struct list_head run_list; struct prio_array *array; + struct sched_class *sched_class; + struct sched_entity se; unsigned short ioprio; #ifdef CONFIG_BLK_DEV_IO_TRACE -- cgit v1.2.3 From 41b86e9c510ae66639bf29d3201e1d2384a7fde6 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:58 +0200 Subject: sched: make posix-cpu-timers use CFS's accounting information update the posix-cpu-timers code to use CFS's CPU accounting information. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 995eb407c234..3e7f1890e55d 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -482,7 +482,8 @@ struct signal_struct { * from jiffies_to_ns(utime + stime) if sched_clock uses something * other than jiffies.) */ - unsigned long long sched_time; + unsigned long sched_time; + unsigned long long sum_sched_runtime; /* * We don't bother to synchronize most readers of this at all, @@ -1308,7 +1309,7 @@ static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask) extern unsigned long long sched_clock(void); extern unsigned long long -current_sched_time(const struct task_struct *current_task); +task_sched_runtime(struct task_struct *task); /* sched_exec is called by processes performing an exec */ #ifdef CONFIG_SMP -- cgit v1.2.3 From e05606d3301525aa67b081ad9fccade2b31ab35a Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:59 +0200 Subject: sched: clean up the rt priority macros clean up the rt priority macros, pointed out by Andrew Morton. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 61 ++++++++++++++++++++++++++++++--------------------- 1 file changed, 36 insertions(+), 25 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 3e7f1890e55d..4dcc61cca00a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -525,31 +525,6 @@ struct signal_struct { #define SIGNAL_STOP_CONTINUED 0x00000004 /* SIGCONT since WCONTINUED reap */ #define SIGNAL_GROUP_EXIT 0x00000008 /* group exit in progress */ - -/* - * Priority of a process goes from 0..MAX_PRIO-1, valid RT - * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH - * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority - * values are inverted: lower p->prio value means higher priority. - * - * The MAX_USER_RT_PRIO value allows the actual maximum - * RT priority to be separate from the value exported to - * user-space. This allows kernel threads to set their - * priority to a value higher than any user task. Note: - * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO. - */ - -#define MAX_USER_RT_PRIO 100 -#define MAX_RT_PRIO MAX_USER_RT_PRIO - -#define MAX_PRIO (MAX_RT_PRIO + 40) - -#define rt_prio(prio) unlikely((prio) < MAX_RT_PRIO) -#define rt_task(p) rt_prio((p)->prio) -#define batch_task(p) (unlikely((p)->policy == SCHED_BATCH)) -#define is_rt_policy(p) ((p) != SCHED_NORMAL && (p) != SCHED_BATCH) -#define has_rt_policy(p) unlikely(is_rt_policy((p)->policy)) - /* * Some day this will be a full-fledged user tracking system.. */ @@ -1164,6 +1139,42 @@ struct task_struct { #endif }; +/* + * Priority of a process goes from 0..MAX_PRIO-1, valid RT + * priority is 0..MAX_RT_PRIO-1, and SCHED_NORMAL/SCHED_BATCH + * tasks are in the range MAX_RT_PRIO..MAX_PRIO-1. Priority + * values are inverted: lower p->prio value means higher priority. + * + * The MAX_USER_RT_PRIO value allows the actual maximum + * RT priority to be separate from the value exported to + * user-space. This allows kernel threads to set their + * priority to a value higher than any user task. Note: + * MAX_RT_PRIO must not be smaller than MAX_USER_RT_PRIO. + */ + +#define MAX_USER_RT_PRIO 100 +#define MAX_RT_PRIO MAX_USER_RT_PRIO + +#define MAX_PRIO (MAX_RT_PRIO + 40) +#define DEFAULT_PRIO (MAX_RT_PRIO + 20) + +static inline int rt_prio(int prio) +{ + if (unlikely(prio < MAX_RT_PRIO)) + return 1; + return 0; +} + +static inline int rt_task(struct task_struct *p) +{ + return rt_prio(p->prio); +} + +static inline int batch_task(struct task_struct *p) +{ + return p->policy == SCHED_BATCH; +} + static inline pid_t process_group(struct task_struct *tsk) { return tsk->signal->pgrp; -- cgit v1.2.3 From f2ac58ee617fd9f6cd9922fbcd291b661d7c9954 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:59 +0200 Subject: sched: remove sleep_type remove the sleep_type heuristics from the core scheduler - scheduling policy is implemented in the scheduling-policy modules. (and CFS does not use this type of sleep-type heuristics) Signed-off-by: Ingo Molnar --- include/linux/sched.h | 8 -------- 1 file changed, 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 4dcc61cca00a..be2460e6f55b 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -788,13 +788,6 @@ struct mempolicy; struct pipe_inode_info; struct uts_namespace; -enum sleep_type { - SLEEP_NORMAL, - SLEEP_NONINTERACTIVE, - SLEEP_INTERACTIVE, - SLEEP_INTERRUPTED, -}; - struct prio_array; struct rq; struct sched_domain; @@ -905,7 +898,6 @@ struct task_struct { unsigned long sleep_avg; unsigned long long timestamp, last_ran; unsigned long long sched_time; /* sched_clock time spent running */ - enum sleep_type sleep_type; unsigned int policy; cpumask_t cpus_allowed; -- cgit v1.2.3 From bb29ab26863c022743143f27956cc0ca362f258c Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:51:59 +0200 Subject: sched: x86, track TSC-unstable events track TSC-unstable events and propagate it to the scheduler code. Also allow sched_clock() to be used when the TSC is unstable, the rq_clock() wrapper creates a reliable clock out of it. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index be2460e6f55b..fa895b309da0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1321,6 +1321,8 @@ extern void sched_exec(void); #define sched_exec() {} #endif +extern void sched_clock_unstable_event(void); + #ifdef CONFIG_HOTPLUG_CPU extern void idle_task_exit(void); #else -- cgit v1.2.3 From 172ba844a8851c3edd13c0a979cdf46bd5e3cc1a Mon Sep 17 00:00:00 2001 From: Balbir Singh Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: update delay-accounting to use CFS's precise stats update delay-accounting to use CFS's precise stats. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index fa895b309da0..e64dbd4cd829 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -562,13 +562,13 @@ struct reclaim_state; #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) struct sched_info { /* cumulative counters */ - unsigned long cpu_time, /* time spent on the cpu */ - run_delay, /* time spent waiting on a runqueue */ - pcnt; /* # of timeslices run on this cpu */ + unsigned long pcnt; /* # of times run on this cpu */ + unsigned long long cpu_time, /* time spent on the cpu */ + run_delay; /* time spent waiting on a runqueue */ /* timestamps */ - unsigned long last_arrival, /* when we last ran on a cpu */ - last_queued; /* when we were last queued to run */ + unsigned long long last_arrival,/* when we last ran on a cpu */ + last_queued; /* when we were last queued to run */ }; #endif /* defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) */ -- cgit v1.2.3 From ad46c2c4ebcead75cd364a79b63b134393094fb9 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: clean up fastcall uses of sched_fork()/sched_exit() sched_fork()/sched_exit() does not need to specify fastcall anymore, as the x86 kernel defaults to regparm3, and no assembly code calls these functions. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index e64dbd4cd829..ce0c5adc9eb0 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1416,8 +1416,8 @@ extern void FASTCALL(wake_up_new_task(struct task_struct * tsk, #else static inline void kick_process(struct task_struct *tsk) { } #endif -extern void FASTCALL(sched_fork(struct task_struct * p, int clone_flags)); -extern void FASTCALL(sched_exit(struct task_struct * p)); +extern void sched_fork(struct task_struct *p, int clone_flags); +extern void sched_dead(struct task_struct *p); extern int in_group_p(gid_t); extern int in_egroup_p(gid_t); -- cgit v1.2.3 From 50e645a8a1a91f57dd5d8454620be5f1cb0fc089 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: remove interactivity types from sched.h remove now-unused types/fields used by the old scheduler. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index ce0c5adc9eb0..efa3beb007ff 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -788,7 +788,6 @@ struct mempolicy; struct pipe_inode_info; struct uts_namespace; -struct prio_array; struct rq; struct sched_domain; @@ -884,10 +883,9 @@ struct task_struct { int oncpu; #endif #endif - int load_weight; /* for niceness load balancing purposes */ + int prio, static_prio, normal_prio; struct list_head run_list; - struct prio_array *array; struct sched_class *sched_class; struct sched_entity se; @@ -895,13 +893,10 @@ struct task_struct { #ifdef CONFIG_BLK_DEV_IO_TRACE unsigned int btrace_seq; #endif - unsigned long sleep_avg; - unsigned long long timestamp, last_ran; - unsigned long long sched_time; /* sched_clock time spent running */ unsigned int policy; cpumask_t cpus_allowed; - unsigned int time_slice, first_time_slice; + unsigned int time_slice; #if defined(CONFIG_SCHEDSTATS) || defined(CONFIG_TASK_DELAY_ACCT) struct sched_info sched_info; -- cgit v1.2.3 From 0c57d5893e4a9857ff22ec9e379f6bdbdad50850 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: remove batch_task() batch_task() in sched.h is now unused - remove it. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index efa3beb007ff..aa582be8cafa 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1157,11 +1157,6 @@ static inline int rt_task(struct task_struct *p) return rt_prio(p->prio); } -static inline int batch_task(struct task_struct *p) -{ - return p->policy == SCHED_BATCH; -} - static inline pid_t process_group(struct task_struct *tsk) { return tsk->signal->pgrp; -- cgit v1.2.3 From 7dd593608df3f9d4e4531cfe29f28c3a3766a0ee Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: remove old cpu accounting field remove the old cpu-accounting field from signal_struct, now that the code is using CFS's stats. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index aa582be8cafa..c9d65738bb7a 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -482,7 +482,6 @@ struct signal_struct { * from jiffies_to_ns(utime + stime) if sched_clock uses something * other than jiffies.) */ - unsigned long sched_time; unsigned long long sum_sched_runtime; /* -- cgit v1.2.3 From 43ae34cb4cd650d1eb4460a8253a8e747ba052ac Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:00 +0200 Subject: sched: scheduler debugging, core scheduler debugging core: implement /proc/sched_debug and /proc//sched files for scheduler debugging. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index c9d65738bb7a..785ec8465bd3 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -132,6 +132,26 @@ extern unsigned long nr_active(void); extern unsigned long nr_iowait(void); extern unsigned long weighted_cpuload(const int cpu); +struct seq_file; +struct cfs_rq; +#ifdef CONFIG_SCHED_DEBUG +extern void proc_sched_show_task(struct task_struct *p, struct seq_file *m); +extern void proc_sched_set_task(struct task_struct *p); +extern void +print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq, u64 now); +#else +static inline void +proc_sched_show_task(struct task_struct *p, struct seq_file *m) +{ +} +static inline void proc_sched_set_task(struct task_struct *p) +{ +} +static inline void +print_cfs_rq(struct seq_file *m, int cpu, struct cfs_rq *cfs_rq, u64 now) +{ +} +#endif /* * Task state bitmask. NOTE! These bits are also -- cgit v1.2.3 From 0fec171cdbd7763ef86cbaccb91f3708de6a9003 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:01 +0200 Subject: sched: clean up sleep_on() APIs clean up the sleep_on() APIs: - do not use fastcall - replace fragile macro magic with proper inline functions Signed-off-by: Ingo Molnar --- include/linux/wait.h | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'include/linux') diff --git a/include/linux/wait.h b/include/linux/wait.h index e820d00e1383..0e686280450b 100644 --- a/include/linux/wait.h +++ b/include/linux/wait.h @@ -366,15 +366,15 @@ static inline void remove_wait_queue_locked(wait_queue_head_t *q, /* * These are the old interfaces to sleep waiting for an event. - * They are racy. DO NOT use them, use the wait_event* interfaces above. - * We plan to remove these interfaces during 2.7. + * They are racy. DO NOT use them, use the wait_event* interfaces above. + * We plan to remove these interfaces. */ -extern void FASTCALL(sleep_on(wait_queue_head_t *q)); -extern long FASTCALL(sleep_on_timeout(wait_queue_head_t *q, - signed long timeout)); -extern void FASTCALL(interruptible_sleep_on(wait_queue_head_t *q)); -extern long FASTCALL(interruptible_sleep_on_timeout(wait_queue_head_t *q, - signed long timeout)); +extern void sleep_on(wait_queue_head_t *q); +extern long sleep_on_timeout(wait_queue_head_t *q, + signed long timeout); +extern void interruptible_sleep_on(wait_queue_head_t *q); +extern long interruptible_sleep_on_timeout(wait_queue_head_t *q, + signed long timeout); /* * Waitqueues which are removed from the waitqueue_head at wakeup time -- cgit v1.2.3 From 9c4801cebc2add1fe514bc8eb201b16372eee11a Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:01 +0200 Subject: sched: more agressive idle balancing the Linux scheduler is starving a number of workloads. So default to more agressive idle-balancing. This hurts lmbench context-switching numbers (which was the main reason we sucked at idle-balancing for such a long time) but the lmbench numbers are fine once the system is minimally utilized. Signed-off-by: Ingo Molnar --- include/linux/topology.h | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/topology.h b/include/linux/topology.h index a9d1f049cc15..da6c39b2d051 100644 --- a/include/linux/topology.h +++ b/include/linux/topology.h @@ -98,7 +98,7 @@ .cache_nice_tries = 0, \ .busy_idx = 0, \ .idle_idx = 0, \ - .newidle_idx = 1, \ + .newidle_idx = 0, \ .wake_idx = 0, \ .forkexec_idx = 0, \ .flags = SD_LOAD_BALANCE \ @@ -128,14 +128,15 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 1, \ - .newidle_idx = 2, \ + .idle_idx = 0, \ + .newidle_idx = 0, \ .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_IDLE \ | SD_SHARE_PKG_RESOURCES\ | BALANCE_FOR_MC_POWER, \ .last_balance = jiffies, \ @@ -158,14 +159,15 @@ .imbalance_pct = 125, \ .cache_nice_tries = 1, \ .busy_idx = 2, \ - .idle_idx = 1, \ - .newidle_idx = 2, \ + .idle_idx = 0, \ + .newidle_idx = 0, \ .wake_idx = 1, \ .forkexec_idx = 1, \ .flags = SD_LOAD_BALANCE \ | SD_BALANCE_NEWIDLE \ | SD_BALANCE_EXEC \ | SD_WAKE_AFFINE \ + | SD_WAKE_IDLE \ | BALANCE_FOR_PKG_POWER,\ .last_balance = jiffies, \ .balance_interval = 1, \ -- cgit v1.2.3 From 6fb43d7b50e49a36f8be3199141bec473e5ecb00 Mon Sep 17 00:00:00 2001 From: Ingo Molnar Date: Mon, 9 Jul 2007 18:52:01 +0200 Subject: sched: micro-optimize mmdrop() micro-optimize mmdrop(). Improves schedule()'s assembly a bit. Signed-off-by: Ingo Molnar --- include/linux/sched.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sched.h b/include/linux/sched.h index 785ec8465bd3..cfb680585ab8 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1514,7 +1514,7 @@ extern struct mm_struct * mm_alloc(void); extern void FASTCALL(__mmdrop(struct mm_struct *)); static inline void mmdrop(struct mm_struct * mm) { - if (atomic_dec_and_test(&mm->mm_count)) + if (unlikely(atomic_dec_and_test(&mm->mm_count))) __mmdrop(mm); } -- cgit v1.2.3 From 7de064ebc67d9baf6c933d3a7046feb9b4eced05 Mon Sep 17 00:00:00 2001 From: Milko Krachounov Date: Sat, 19 May 2007 01:18:03 +0200 Subject: sdhci: add ene controller id ENE has a very weird design where an SDHCI device (0805) is presented on the PCI bus, but that device is non-functional, and the real device is hidden as a more generic device. Signed-off-by: Milko Krachounov Signed-off-by: Pierre Ossman --- include/linux/pci_ids.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h index 5b1c9994f89a..75c4d4d06892 100644 --- a/include/linux/pci_ids.h +++ b/include/linux/pci_ids.h @@ -2000,6 +2000,7 @@ #define PCI_VENDOR_ID_ENE 0x1524 #define PCI_DEVICE_ID_ENE_CB712_SD 0x0550 +#define PCI_DEVICE_ID_ENE_CB712_SD_2 0x0551 #define PCI_DEVICE_ID_ENE_1211 0x1211 #define PCI_DEVICE_ID_ENE_1225 0x1225 #define PCI_DEVICE_ID_ENE_1410 0x1410 -- cgit v1.2.3 From 841d2a9bf16471716ba3a5172d24aa40a2ea9398 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 9 Jul 2007 23:17:54 +0200 Subject: ide: make void and rename ide_dma_lostirq() method Since ide_dma_lostirq() method's result is discarded, make it return 'void'. While at it, rename the method to dma_lost_irq(), drop the '__' prefix from the default method's name, and do some cleanups in this method driver-wise: - in aec62xx.c, rename the method in accordance with other drivers, and get rid of unnecessary variables there; - in pdc202xx_old.c, define/use 'hwif' variable; - in sgiioc4.c, rearrange the code to call the resetproc() method directly. Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ide.h b/include/linux/ide.h index 1e365acdd369..d7f74e7c5155 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -735,7 +735,7 @@ typedef struct hwif_s { void (*ide_dma_clear_irq)(ide_drive_t *drive); void (*dma_host_on)(ide_drive_t *drive); void (*dma_host_off)(ide_drive_t *drive); - int (*ide_dma_lostirq)(ide_drive_t *drive); + void (*dma_lost_irq)(ide_drive_t *drive); int (*ide_dma_timeout)(ide_drive_t *drive); void (*OUTB)(u8 addr, unsigned long port); @@ -1304,7 +1304,7 @@ extern int __ide_dma_check(ide_drive_t *); extern int ide_dma_setup(ide_drive_t *); extern void ide_dma_start(ide_drive_t *); extern int __ide_dma_end(ide_drive_t *); -extern int __ide_dma_lostirq(ide_drive_t *); +extern void ide_dma_lost_irq(ide_drive_t *); extern int __ide_dma_timeout(ide_drive_t *); #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ -- cgit v1.2.3 From c283f5dbe31920ca70b80a594a97bfaa2a28be13 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Mon, 9 Jul 2007 23:17:54 +0200 Subject: ide: make void and rename ide_dma_timeout() method Since ide_dma_timeout() method's result is discarded, make it return 'void'. While at it, drop 'ide_' from the method's name, drop the '__' prefix from the default method's name, and do some cleanups in this method driver-wise: - in ide-dma.c, au1xxx-ide.c, and pdc202xx_old.c, define/use 'hwif' variable; - in au1xxx-ide.c, get rid of commented out printk(); - in sl82c105.c, get rid of unnecessary variables. Signed-off-by: Sergei Shtylyov Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ide.h b/include/linux/ide.h index d7f74e7c5155..0bacf7f7c791 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -736,7 +736,7 @@ typedef struct hwif_s { void (*dma_host_on)(ide_drive_t *drive); void (*dma_host_off)(ide_drive_t *drive); void (*dma_lost_irq)(ide_drive_t *drive); - int (*ide_dma_timeout)(ide_drive_t *drive); + void (*dma_timeout)(ide_drive_t *drive); void (*OUTB)(u8 addr, unsigned long port); void (*OUTBSYNC)(ide_drive_t *drive, u8 addr, unsigned long port); @@ -1305,7 +1305,7 @@ extern int ide_dma_setup(ide_drive_t *); extern void ide_dma_start(ide_drive_t *); extern int __ide_dma_end(ide_drive_t *); extern void ide_dma_lost_irq(ide_drive_t *); -extern int __ide_dma_timeout(ide_drive_t *); +extern void ide_dma_timeout(ide_drive_t *); #endif /* CONFIG_BLK_DEV_IDEDMA_PCI */ #else -- cgit v1.2.3 From ef29888ea8e1fdc499e995260195b66fc91d2728 Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Mon, 9 Jul 2007 23:17:55 +0200 Subject: ide: use mutex instead of ide_cfg_sem semaphore in IDE driver The IDE driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke Signed-off-by: Bartlomiej Zolnierkiewicz --- include/linux/ide.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ide.h b/include/linux/ide.h index 0bacf7f7c791..16ae68857f57 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -1382,11 +1382,11 @@ extern const ide_pio_timings_t ide_pio_timings[6]; extern spinlock_t ide_lock; -extern struct semaphore ide_cfg_sem; +extern struct mutex ide_cfg_mtx; /* * Structure locking: * - * ide_cfg_sem and ide_lock together protect changes to + * ide_cfg_mtx and ide_lock together protect changes to * ide_hwif_t->{next,hwgroup} * ide_drive_t->next * -- cgit v1.2.3 From f9383c4269d264c3cf563bd2de365891f6592ebd Mon Sep 17 00:00:00 2001 From: Matthias Kaehlcke Date: Mon, 9 Jul 2007 23:17:56 +0200 Subject: ide: use mutex instead of ide_setting_sem semaphore in IDE driver The IDE driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke Signed-off-by: Bartlomiej Zolnierkiewicz -- --- include/linux/ide.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ide.h b/include/linux/ide.h index 16ae68857f57..b6546f442fa4 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -25,6 +25,7 @@ #include #include #include +#include /****************************************************************************** * IDE driver configuration options (play with these as desired): @@ -863,7 +864,7 @@ typedef struct hwgroup_s { typedef struct ide_driver_s ide_driver_t; -extern struct semaphore ide_setting_sem; +extern struct mutex ide_setting_mtx; int set_io_32bit(ide_drive_t *, int); int set_pio_mode(ide_drive_t *, int); -- cgit v1.2.3 From 49521f97ccd3c2bf6e71a91cea8fe65d170fa4fb Mon Sep 17 00:00:00 2001 From: Bartlomiej Zolnierkiewicz Date: Mon, 9 Jul 2007 23:17:58 +0200 Subject: ide: add short cables support This patch allows users to override both host and device side cable detection with "ideX=ata66" kernel parameter. Thanks to this it should be now possible to use UDMA > 2 modes on systems (laptops mainly) which use short 40-pin cable instead of 80-pin one. Next patches add automatic detection of some systems using short cables. Changes: * Rename hwif->udma_four to hwif->cbl and make it u8. * Convert all existing users accordingly (use ATA_CBL_* defines while at it). * Add ATA_CBL_PATA40_SHORT support to ide-iops.c:eighty_ninty_three(). * Use ATA_CBL_PATA40_SHORT for "ideX=ata66" kernel parameter. Signed-off-by: Bartlomiej Zolnierkiewicz Reviewed-by: Sergei Shtylyov --- include/linux/ide.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/ide.h b/include/linux/ide.h index b6546f442fa4..19ab25804056 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -686,6 +686,8 @@ typedef struct hwif_s { u8 mwdma_mask; u8 swdma_mask; + u8 cbl; /* cable type */ + hwif_chipset_t chipset; /* sub-module for tuning.. */ struct pci_dev *pci_dev; /* for pci chipsets */ @@ -792,7 +794,6 @@ typedef struct hwif_s { unsigned sharing_irq: 1; /* 1 = sharing irq with another hwif */ unsigned reset : 1; /* reset after probe */ unsigned autodma : 1; /* auto-attempt using DMA at boot */ - unsigned udma_four : 1; /* 1=ATA-66 capable, 0=default */ unsigned no_lba48 : 1; /* 1 = cannot do LBA48 */ unsigned no_lba48_dma : 1; /* 1 = cannot do LBA48 DMA */ unsigned auto_poll : 1; /* supports nop auto-poll */ -- cgit v1.2.3 From 7ada60e367640fa8a4a349d9b105f235f346238b Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Kristian=20H=C3=B8gsberg?= Date: Fri, 22 Jun 2007 00:20:34 +0200 Subject: firewire: Document userspace ioctl interface. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The isochronous packet format is still not documented, but this is a good first step. Signed-off-by: Kristian Høgsberg Signed-off-by: Stefan Richter (format, wording) --- include/linux/firewire-cdev.h | 297 +++++++++++++++++++++++++++++++++++++----- 1 file changed, 264 insertions(+), 33 deletions(-) (limited to 'include/linux') diff --git a/include/linux/firewire-cdev.h b/include/linux/firewire-cdev.h index efbe1fda1a22..1a45d6f41b09 100644 --- a/include/linux/firewire-cdev.h +++ b/include/linux/firewire-cdev.h @@ -30,16 +30,38 @@ #define FW_CDEV_EVENT_REQUEST 0x02 #define FW_CDEV_EVENT_ISO_INTERRUPT 0x03 -/* The 'closure' fields are for user space to use. Data passed in the - * 'closure' field for a request will be returned in the corresponding - * event. It's a 64-bit type so that it's a fixed size type big - * enough to hold a pointer on all platforms. */ - +/** + * struct fw_cdev_event_common - Common part of all fw_cdev_event_ types + * @closure: For arbitrary use by userspace + * @type: Discriminates the fw_cdev_event_ types + * + * This struct may be used to access generic members of all fw_cdev_event_ + * types regardless of the specific type. + * + * Data passed in the @closure field for a request will be returned in the + * corresponding event. It is big enough to hold a pointer on all platforms. + * The ioctl used to set @closure depends on the @type of event. + */ struct fw_cdev_event_common { __u64 closure; __u32 type; }; +/** + * struct fw_cdev_event_bus_reset - Sent when a bus reset occurred + * @closure: See &fw_cdev_event_common; set by %FW_CDEV_IOC_GET_INFO ioctl + * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_BUS_RESET + * @node_id: New node ID of this node + * @local_node_id: Node ID of the local node, i.e. of the controller + * @bm_node_id: Node ID of the bus manager + * @irm_node_id: Node ID of the iso resource manager + * @root_node_id: Node ID of the root node + * @generation: New bus generation + * + * This event is sent when the bus the device belongs to goes through a bus + * reset. It provides information about the new bus configuration, such as + * new node ID for this device, new root ID, and others. + */ struct fw_cdev_event_bus_reset { __u64 closure; __u32 type; @@ -51,6 +73,20 @@ struct fw_cdev_event_bus_reset { __u32 generation; }; +/** + * struct fw_cdev_event_response - Sent when a response packet was received + * @closure: See &fw_cdev_event_common; + * set by %FW_CDEV_IOC_SEND_REQUEST ioctl + * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_RESPONSE + * @rcode: Response code returned by the remote node + * @length: Data length, i.e. the response's payload size in bytes + * @data: Payload data, if any + * + * This event is sent when the stack receives a response to an outgoing request + * sent by %FW_CDEV_IOC_SEND_REQUEST ioctl. The payload data for responses + * carrying data (read and lock responses) follows immediately and can be + * accessed through the @data field. + */ struct fw_cdev_event_response { __u64 closure; __u32 type; @@ -59,6 +95,25 @@ struct fw_cdev_event_response { __u32 data[0]; }; +/** + * struct fw_cdev_event_request - Sent on incoming request to an address region + * @closure: See &fw_cdev_event_common; set by %FW_CDEV_IOC_ALLOCATE ioctl + * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_REQUEST + * @tcode: Transaction code of the incoming request + * @offset: The offset into the 48-bit per-node address space + * @handle: Reference to the kernel-side pending request + * @length: Data length, i.e. the request's payload size in bytes + * @data: Incoming data, if any + * + * This event is sent when the stack receives an incoming request to an address + * region registered using the %FW_CDEV_IOC_ALLOCATE ioctl. The request is + * guaranteed to be completely contained in the specified region. Userspace is + * responsible for sending the response by %FW_CDEV_IOC_SEND_RESPONSE ioctl, + * using the same @handle. + * + * The payload data for requests carrying data (write and lock requests) + * follows immediately and can be accessed through the @data field. + */ struct fw_cdev_event_request { __u64 closure; __u32 type; @@ -69,14 +124,39 @@ struct fw_cdev_event_request { __u32 data[0]; }; +/** + * struct fw_cdev_event_iso_interrupt - Sent when an iso packet was completed + * @closure: See &fw_cdev_event_common; + * set by %FW_CDEV_CREATE_ISO_CONTEXT ioctl + * @type: See &fw_cdev_event_common; always %FW_CDEV_EVENT_ISO_INTERRUPT + * @cycle: Cycle counter of the interrupt packet + * @header_length: Total length of following headers, in bytes + * @header: Stripped headers, if any + * + * This event is sent when the controller has completed an &fw_cdev_iso_packet + * with the %FW_CDEV_ISO_INTERRUPT bit set. In the receive case, the headers + * stripped of all packets up until and including the interrupt packet are + * returned in the @header field. + */ struct fw_cdev_event_iso_interrupt { __u64 closure; __u32 type; __u32 cycle; - __u32 header_length; /* Length in bytes of following headers. */ + __u32 header_length; __u32 header[0]; }; +/** + * union fw_cdev_event - Convenience union of fw_cdev_event_ types + * @common: Valid for all types + * @bus_reset: Valid if @common.type == %FW_CDEV_EVENT_BUS_RESET + * @response: Valid if @common.type == %FW_CDEV_EVENT_RESPONSE + * @request: Valid if @common.type == %FW_CDEV_EVENT_REQUEST + * @iso_interrupt: Valid if @common.type == %FW_CDEV_EVENT_ISO_INTERRUPT + * + * Convenience union for userspace use. Events could be read(2) into a char + * buffer and then cast to this union for further processing. + */ union fw_cdev_event { struct fw_cdev_event_common common; struct fw_cdev_event_bus_reset bus_reset; @@ -105,35 +185,47 @@ union fw_cdev_event { */ #define FW_CDEV_VERSION 1 +/** + * struct fw_cdev_get_info - General purpose information ioctl + * @version: The version field is just a running serial number. + * We never break backwards compatibility, but may add more + * structs and ioctls in later revisions. + * @rom_length: If @rom is non-zero, at most rom_length bytes of configuration + * ROM will be copied into that user space address. In either + * case, @rom_length is updated with the actual length of the + * configuration ROM. + * @rom: If non-zero, address of a buffer to be filled by a copy of the + * local node's configuration ROM + * @bus_reset: If non-zero, address of a buffer to be filled by a + * &struct fw_cdev_event_bus_reset with the current state + * of the bus. This does not cause a bus reset to happen. + * @bus_reset_closure: Value of &closure in this and subsequent bus reset events + * @card: The index of the card this device belongs to + */ struct fw_cdev_get_info { - /* The version field is just a running serial number. We - * never break backwards compatibility. Userspace passes in - * the version it expects and the kernel passes back the - * highest version it can provide. Even if the structs in - * this interface are extended in a later version, the kernel - * will not copy back more data than what was present in the - * interface version userspace expects. */ __u32 version; - - /* If non-zero, at most rom_length bytes of config rom will be - * copied into that user space address. In either case, - * rom_length is updated with the actual length of the config - * rom. */ __u32 rom_length; __u64 rom; - - /* If non-zero, a fw_cdev_event_bus_reset struct will be - * copied here with the current state of the bus. This does - * not cause a bus reset to happen. The value of closure in - * this and sub-sequent bus reset events is set to - * bus_reset_closure. */ __u64 bus_reset; __u64 bus_reset_closure; - - /* The index of the card this devices belongs to. */ __u32 card; }; +/** + * struct fw_cdev_send_request - Send an asynchronous request packet + * @tcode: Transaction code of the request + * @length: Length of outgoing payload, in bytes + * @offset: 48-bit offset at destination node + * @closure: Passed back to userspace in the response event + * @data: Userspace pointer to payload + * @generation: The bus generation where packet is valid + * + * Send a request to the device. This ioctl implements all outgoing requests. + * Both quadlet and block request specify the payload as a pointer to the data + * in the @data field. Once the transaction completes, the kernel writes an + * &fw_cdev_event_request event back. The @closure field is passed back to + * user space in the response event. + */ struct fw_cdev_send_request { __u32 tcode; __u32 length; @@ -143,6 +235,19 @@ struct fw_cdev_send_request { __u32 generation; }; +/** + * struct fw_cdev_send_response - Send an asynchronous response packet + * @rcode: Response code as determined by the userspace handler + * @length: Length of outgoing payload, in bytes + * @data: Userspace pointer to payload + * @handle: The handle from the &fw_cdev_event_request + * + * Send a response to an incoming request. By setting up an address range using + * the %FW_CDEV_IOC_ALLOCATE ioctl, userspace can listen for incoming requests. An + * incoming request will generate an %FW_CDEV_EVENT_REQUEST, and userspace must + * send a reply using this ioctl. The event has a handle to the kernel-side + * pending transaction, which should be used with this ioctl. + */ struct fw_cdev_send_response { __u32 rcode; __u32 length; @@ -150,6 +255,21 @@ struct fw_cdev_send_response { __u32 handle; }; +/** + * struct fw_cdev_allocate - Allocate a CSR address range + * @offset: Start offset of the address range + * @closure: To be passed back to userspace in request events + * @length: Length of the address range, in bytes + * @handle: Handle to the allocation, written by the kernel + * + * Allocate an address range in the 48-bit address space on the local node + * (the controller). This allows userspace to listen for requests with an + * offset within that address range. When the kernel receives a request + * within the range, an &fw_cdev_event_request event will be written back. + * The @closure field is passed back to userspace in the response event. + * The @handle field is an out parameter, returning a handle to the allocated + * range to be used for later deallocation of the range. + */ struct fw_cdev_allocate { __u64 offset; __u64 closure; @@ -157,6 +277,11 @@ struct fw_cdev_allocate { __u32 handle; }; +/** + * struct fw_cdev_deallocate - Free an address range allocation + * @handle: Handle to the address range, as returned by the kernel when the + * range was allocated + */ struct fw_cdev_deallocate { __u32 handle; }; @@ -164,10 +289,41 @@ struct fw_cdev_deallocate { #define FW_CDEV_LONG_RESET 0 #define FW_CDEV_SHORT_RESET 1 +/** + * struct fw_cdev_initiate_bus_reset - Initiate a bus reset + * @type: %FW_CDEV_SHORT_RESET or %FW_CDEV_LONG_RESET + * + * Initiate a bus reset for the bus this device is on. The bus reset can be + * either the original (long) bus reset or the arbitrated (short) bus reset + * introduced in 1394a-2000. + */ struct fw_cdev_initiate_bus_reset { - __u32 type; + __u32 type; /* FW_CDEV_SHORT_RESET or FW_CDEV_LONG_RESET */ }; +/** + * struct fw_cdev_add_descriptor - Add contents to the local node's config ROM + * @immediate: If non-zero, immediate key to insert before pointer + * @key: Upper 8 bits of root directory pointer + * @data: Userspace pointer to contents of descriptor block + * @length: Length of descriptor block data, in bytes + * @handle: Handle to the descriptor, written by the kernel + * + * Add a descriptor block and optionally a preceding immediate key to the local + * node's configuration ROM. + * + * The @key field specifies the upper 8 bits of the descriptor root directory + * pointer and the @data and @length fields specify the contents. The @key + * should be of the form 0xXX000000. The offset part of the root directory entry + * will be filled in by the kernel. + * + * If not 0, the @immediate field specifies an immediate key which will be + * inserted before the root directory pointer. + * + * If successful, the kernel adds the descriptor and writes back a handle to the + * kernel-side object to be used for later removal of the descriptor block and + * immediate key. + */ struct fw_cdev_add_descriptor { __u32 immediate; __u32 key; @@ -176,6 +332,14 @@ struct fw_cdev_add_descriptor { __u32 handle; }; +/** + * struct fw_cdev_remove_descriptor - Remove contents from the configuration ROM + * @handle: Handle to the descriptor, as returned by the kernel when the + * descriptor was added + * + * Remove a descriptor block and accompanying immediate key from the local + * node's configuration ROM. + */ struct fw_cdev_remove_descriptor { __u32 handle; }; @@ -183,12 +347,24 @@ struct fw_cdev_remove_descriptor { #define FW_CDEV_ISO_CONTEXT_TRANSMIT 0 #define FW_CDEV_ISO_CONTEXT_RECEIVE 1 -#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1 -#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2 -#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4 -#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8 -#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15 - +/** + * struct fw_cdev_create_iso_context - Create a context for isochronous IO + * @type: %FW_CDEV_ISO_CONTEXT_TRANSMIT or %FW_CDEV_ISO_CONTEXT_RECEIVE + * @header_size: Header size to strip for receive contexts + * @channel: Channel to bind to + * @speed: Speed to transmit at + * @closure: To be returned in &fw_cdev_event_iso_interrupt + * @handle: Handle to context, written back by kernel + * + * Prior to sending or receiving isochronous I/O, a context must be created. + * The context records information about the transmit or receive configuration + * and typically maps to an underlying hardware resource. A context is set up + * for either sending or receiving. It is bound to a specific isochronous + * channel. + * + * If a context was successfully created, the kernel writes back a handle to the + * context, which must be passed in for subsequent operations on that context. + */ struct fw_cdev_create_iso_context { __u32 type; __u32 header_size; @@ -201,15 +377,49 @@ struct fw_cdev_create_iso_context { #define FW_CDEV_ISO_PAYLOAD_LENGTH(v) (v) #define FW_CDEV_ISO_INTERRUPT (1 << 16) #define FW_CDEV_ISO_SKIP (1 << 17) +#define FW_CDEV_ISO_SYNC (1 << 17) #define FW_CDEV_ISO_TAG(v) ((v) << 18) #define FW_CDEV_ISO_SY(v) ((v) << 20) #define FW_CDEV_ISO_HEADER_LENGTH(v) ((v) << 24) +/** + * struct fw_cdev_iso_packet - Isochronous packet + * @control: Contains the header length (8 uppermost bits), the sy field + * (4 bits), the tag field (2 bits), a sync flag (1 bit), + * a skip flag (1 bit), an interrupt flag (1 bit), and the + * payload length (16 lowermost bits) + * @header: Header and payload + * + * &struct fw_cdev_iso_packet is used to describe isochronous packet queues. + * + * Use the FW_CDEV_ISO_ macros to fill in @control. The sy and tag fields are + * specified by IEEE 1394a and IEC 61883. + * + * FIXME - finish this documentation + */ struct fw_cdev_iso_packet { __u32 control; __u32 header[0]; }; +/** + * struct fw_cdev_queue_iso - Queue isochronous packets for I/O + * @packets: Userspace pointer to packet data + * @data: Pointer into mmap()'ed payload buffer + * @size: Size of packet data in bytes + * @handle: Isochronous context handle + * + * Queue a number of isochronous packets for reception or transmission. + * This ioctl takes a pointer to an array of &fw_cdev_iso_packet structs, + * which describe how to transmit from or receive into a contiguous region + * of a mmap()'ed payload buffer. As part of the packet descriptors, + * a series of headers can be supplied, which will be prepended to the + * payload during DMA. + * + * The kernel may or may not queue all packets, but will write back updated + * values of the @packets, @data and @size fields, so the ioctl can be + * resubmitted easily. + */ struct fw_cdev_queue_iso { __u64 packets; __u64 data; @@ -217,6 +427,23 @@ struct fw_cdev_queue_iso { __u32 handle; }; +#define FW_CDEV_ISO_CONTEXT_MATCH_TAG0 1 +#define FW_CDEV_ISO_CONTEXT_MATCH_TAG1 2 +#define FW_CDEV_ISO_CONTEXT_MATCH_TAG2 4 +#define FW_CDEV_ISO_CONTEXT_MATCH_TAG3 8 +#define FW_CDEV_ISO_CONTEXT_MATCH_ALL_TAGS 15 + +/** + * struct fw_cdev_start_iso - Start an isochronous transmission or reception + * @cycle: Cycle in which to start I/O. If @cycle is greater than or + * equal to 0, the I/O will start on that cycle. + * @sync: Determines the value to wait for for receive packets that have + * the %FW_CDEV_ISO_SYNC bit set + * @tags: Tag filter bit mask. Only valid for isochronous reception. + * Determines the tag values for which packets will be accepted. + * Use FW_CDEV_ISO_CONTEXT_MATCH_ macros to set @tags. + * @handle: Isochronous context handle within which to transmit or receive + */ struct fw_cdev_start_iso { __s32 cycle; __u32 sync; @@ -224,6 +451,10 @@ struct fw_cdev_start_iso { __u32 handle; }; +/** + * struct fw_cdev_stop_iso - Stop an isochronous transmission or reception + * @handle: Handle of isochronous context to stop + */ struct fw_cdev_stop_iso { __u32 handle; }; -- cgit v1.2.3 From f836ac808f031e84d7d73a3540f30f38036bb41e Mon Sep 17 00:00:00 2001 From: Jan Kratochvil Date: Wed, 9 May 2007 00:26:15 -0400 Subject: USB: Add USB_DEVICE_INTERFACE_PROTOCOL macro The USB_DEVICE_INTERFACE_PROTOCOL will allow to match one interface protocol of vendor specific device. This macro is used in patch adding support for xbox360 to xpad.c Signed-off-by: Jan Kratochvil Signed-off-by: Greg Kroah-Hartman Signed-off-by: Dmitry Torokhov --- include/linux/usb.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/linux') diff --git a/include/linux/usb.h b/include/linux/usb.h index 94bd38a6d947..56aa2ee21f1b 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -728,6 +728,22 @@ static inline int usb_endpoint_is_isoc_out(const struct usb_endpoint_descriptor .idVendor = (vend), .idProduct = (prod), \ .bcdDevice_lo = (lo), .bcdDevice_hi = (hi) +/** + * USB_DEVICE_INTERFACE_PROTOCOL - macro used to describe a usb + * device with a specific interface protocol + * @vend: the 16 bit USB Vendor ID + * @prod: the 16 bit USB Product ID + * @pr: bInterfaceProtocol value + * + * This macro is used to create a struct usb_device_id that matches a + * specific interface protocol of devices. + */ +#define USB_DEVICE_INTERFACE_PROTOCOL(vend,prod,pr) \ + .match_flags = USB_DEVICE_ID_MATCH_DEVICE | USB_DEVICE_ID_MATCH_INT_PROTOCOL, \ + .idVendor = (vend), \ + .idProduct = (prod), \ + .bInterfaceProtocol = (pr) + /** * USB_DEVICE_INFO - macro used to describe a class of usb devices * @cl: bDeviceClass value -- cgit v1.2.3 From 9657d75c5f0f7d0a9cb507521d3ad1436aea28c9 Mon Sep 17 00:00:00 2001 From: Dmitry Torokhov Date: Thu, 14 Jun 2007 23:32:24 -0400 Subject: Input: convert from class devices to standard devices Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) (limited to 'include/linux') diff --git a/include/linux/input.h b/include/linux/input.h index d8521c72f69f..18c98b543030 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -981,15 +981,15 @@ struct input_dev { struct mutex mutex; /* serializes open and close operations */ unsigned int users; - struct class_device cdev; + struct device dev; union { /* temporarily so while we switching to struct device */ - struct device *parent; - } dev; + struct device *dev; + } cdev; struct list_head h_list; struct list_head node; }; -#define to_input_dev(d) container_of(d, struct input_dev, cdev) +#define to_input_dev(d) container_of(d, struct input_dev, dev) /* * Verify that we are in sync with input_device_id mod_devicetable.h #defines @@ -1096,22 +1096,22 @@ struct input_handle { struct list_head h_node; }; -#define to_dev(n) container_of(n,struct input_dev,node) -#define to_handler(n) container_of(n,struct input_handler,node) -#define to_handle(n) container_of(n,struct input_handle,d_node) -#define to_handle_h(n) container_of(n,struct input_handle,h_node) +#define to_dev(n) container_of(n, struct input_dev, node) +#define to_handler(n) container_of(n, struct input_handler, node) +#define to_handle(n) container_of(n, struct input_handle, d_node) +#define to_handle_h(n) container_of(n, struct input_handle, h_node) struct input_dev *input_allocate_device(void); void input_free_device(struct input_dev *dev); static inline struct input_dev *input_get_device(struct input_dev *dev) { - return to_input_dev(class_device_get(&dev->cdev)); + return to_input_dev(get_device(&dev->dev)); } static inline void input_put_device(struct input_dev *dev) { - class_device_put(&dev->cdev); + put_device(&dev->dev); } static inline void *input_get_drvdata(struct input_dev *dev) -- cgit v1.2.3 From 5f5655023f2814969b744c1e07494666587243aa Mon Sep 17 00:00:00 2001 From: Hans-Christian Egtvedt Date: Thu, 14 Jun 2007 23:32:35 -0400 Subject: Input: add gpio-mouse driver Adds support for simulating a mouse using GPIO lines. The driver needs an appropriate platform device to be created by architecture code. The driver has been tested on AT32AP7000 microprocessor using the ATSTK1000 development board. Signed-off-by: Hans-Christian Egtvedt Signed-off-by: Dmitry Torokhov --- include/linux/gpio_mouse.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 include/linux/gpio_mouse.h (limited to 'include/linux') diff --git a/include/linux/gpio_mouse.h b/include/linux/gpio_mouse.h new file mode 100644 index 000000000000..44ed7aa14d85 --- /dev/null +++ b/include/linux/gpio_mouse.h @@ -0,0 +1,61 @@ +/* + * Driver for simulating a mouse on GPIO lines. + * + * Copyright (C) 2007 Atmel Corporation + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef _GPIO_MOUSE_H +#define _GPIO_MOUSE_H + +#define GPIO_MOUSE_POLARITY_ACT_HIGH 0x00 +#define GPIO_MOUSE_POLARITY_ACT_LOW 0x01 + +#define GPIO_MOUSE_PIN_UP 0 +#define GPIO_MOUSE_PIN_DOWN 1 +#define GPIO_MOUSE_PIN_LEFT 2 +#define GPIO_MOUSE_PIN_RIGHT 3 +#define GPIO_MOUSE_PIN_BLEFT 4 +#define GPIO_MOUSE_PIN_BMIDDLE 5 +#define GPIO_MOUSE_PIN_BRIGHT 6 +#define GPIO_MOUSE_PIN_MAX 7 + +/** + * struct gpio_mouse_platform_data + * @scan_ms: integer in ms specifying the scan periode. + * @polarity: Pin polarity, active high or low. + * @up: GPIO line for up value. + * @down: GPIO line for down value. + * @left: GPIO line for left value. + * @right: GPIO line for right value. + * @bleft: GPIO line for left button. + * @bmiddle: GPIO line for middle button. + * @bright: GPIO line for right button. + * + * This struct must be added to the platform_device in the board code. + * It is used by the gpio_mouse driver to setup GPIO lines and to + * calculate mouse movement. + */ +struct gpio_mouse_platform_data { + int scan_ms; + int polarity; + + union { + struct { + int up; + int down; + int left; + int right; + + int bleft; + int bmiddle; + int bright; + }; + int pins[GPIO_MOUSE_PIN_MAX]; + }; +}; + +#endif /* _GPIO_MOUSE_H */ -- cgit v1.2.3 From 7deeed13170e634adc4552ff94588d6301a3da83 Mon Sep 17 00:00:00 2001 From: Benjamin Gilbert Date: Tue, 19 Jun 2007 09:05:21 +0200 Subject: [TRIVIAL PATCH] Kill blk_congestion_wait() stub for !CONFIG_BLOCK blk_congestion_wait() doesn't exist anymore, but there's still a stub in blkdev.h for the !CONFIG_BLOCK case. Kill it. Signed-off-by: Benjamin Gilbert Signed-off-by: Jens Axboe --- include/linux/blkdev.h | 5 ----- 1 file changed, 5 deletions(-) (limited to 'include/linux') diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index db5b00a792f5..fae138bd2207 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -868,11 +868,6 @@ void kblockd_flush_work(struct work_struct *work); */ #define buffer_heads_over_limit 0 -static inline long blk_congestion_wait(int rw, long timeout) -{ - return io_schedule_timeout(timeout); -} - static inline long nr_blockdev_pages(void) { return 0; -- cgit v1.2.3 From c66ab6fa705e1b2887a6d9246b798bdc526839e2 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 12 Jun 2007 21:17:17 +0200 Subject: splice: abstract out actor data For direct splicing (or private splicing), the output may not be a file. So abstract out the handling into a specified actor function and put the data in the splice_desc structure earlier, so we can build on top of that. This is the first step in better splice handling for drivers, and also for implementing vmsplice _to_ user memory. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index c8884f971228..883ba9b78d3f 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -94,13 +94,15 @@ struct splice_desc { typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *, struct splice_desc *); +typedef int (splice_direct_actor)(struct pipe_inode_info *, + struct splice_desc *); extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *, loff_t *, size_t, unsigned int, splice_actor *); - -extern ssize_t __splice_from_pipe(struct pipe_inode_info *, struct file *, - loff_t *, size_t, unsigned int, - splice_actor *); +extern ssize_t __splice_from_pipe(struct pipe_inode_info *, + struct splice_desc *, splice_actor *); +extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, + splice_direct_actor *); #endif -- cgit v1.2.3 From 6a14b90bb6bc7cd83e2a444bf457a2ea645cbfe7 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 14 Jun 2007 13:08:55 +0200 Subject: vmsplice: add vmsplice-to-user support A bit of a cheat, it actually just copies the data to userspace. But this makes the interface nice and symmetric and enables people to build on splice, with room for future improvement in performance. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 883ba9b78d3f..6e7bfc125425 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -88,7 +88,13 @@ int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); struct splice_desc { unsigned int len, total_len; /* current and remaining length */ unsigned int flags; /* splice flags */ - struct file *file; /* file to read/write */ + /* + * actor() private data + */ + union { + void __user *userptr; /* memory to write to */ + struct file *file; /* file to read/write */ + } u; loff_t pos; /* file position */ }; -- cgit v1.2.3 From 0452a4e5d021900b07ebdeecb9ed03b49f164f3f Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Fri, 1 Jun 2007 11:55:49 +0200 Subject: sendfile: kill generic_file_sendfile() It's no longer used. Signed-off-by: Jens Axboe --- include/linux/fs.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index 6a41f4cab14c..87c1d3e9d6cb 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1762,7 +1762,6 @@ extern ssize_t generic_file_buffered_write(struct kiocb *, const struct iovec *, unsigned long, loff_t, loff_t *, size_t, ssize_t); extern ssize_t do_sync_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos); extern ssize_t do_sync_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos); -extern ssize_t generic_file_sendfile(struct file *, loff_t *, size_t, read_actor_t, void *); extern void do_generic_mapping_read(struct address_space *mapping, struct file_ra_state *, struct file *, loff_t *, read_descriptor_t *, read_actor_t); -- cgit v1.2.3 From 130610d6f681c5d970340897f5db000d04a7ef78 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 12 Jun 2007 21:20:00 +0200 Subject: splice: add void cookie to the actor data We need that for passing driver private info. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 6e7bfc125425..f277a9cdb50d 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -94,6 +94,7 @@ struct splice_desc { union { void __user *userptr; /* memory to write to */ struct file *file; /* file to read/write */ + void *data; /* cookie */ } u; loff_t pos; /* file position */ }; -- cgit v1.2.3 From cf8208d0eabd1d5d2625ec02a175a294c3f30d36 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 12 Jun 2007 21:22:14 +0200 Subject: sendfile: convert nfsd to splice_direct_to_actor() Signed-off-by: Jens Axboe --- include/linux/sunrpc/svc.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/sunrpc/svc.h b/include/linux/sunrpc/svc.h index 4a7ae8ab6eb8..129d50f2225c 100644 --- a/include/linux/sunrpc/svc.h +++ b/include/linux/sunrpc/svc.h @@ -253,7 +253,7 @@ struct svc_rqst { * determine what device number * to report (real or virtual) */ - int rq_sendfile_ok; /* turned off in gss privacy + int rq_splice_ok; /* turned off in gss privacy * to prevent encrypting page * cache pages */ wait_queue_head_t rq_wait; /* synchronization */ -- cgit v1.2.3 From d6b29d7cee064f28ca097e906de7453541351095 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 4 Jun 2007 09:59:47 +0200 Subject: splice: divorce the splice structure/function definitions from the pipe header We need to move even more stuff into the header so that folks can use the splice_to_pipe() implementation instead of open-coding a lot of pipe knowledge (see relay implementation), so move to our own header file finally. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 41 --------------------------- include/linux/splice.h | 72 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 72 insertions(+), 41 deletions(-) create mode 100644 include/linux/splice.h (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index f277a9cdb50d..7ba228d52f58 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -71,45 +71,4 @@ void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_pin(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); -/* - * splice is tied to pipes as a transport (at least for now), so we'll just - * add the splice flags here. - */ -#define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ -#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ - /* we may still block on the fd we splice */ - /* from/to, of course */ -#define SPLICE_F_MORE (0x04) /* expect more data */ -#define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ - -/* - * Passed to the actors - */ -struct splice_desc { - unsigned int len, total_len; /* current and remaining length */ - unsigned int flags; /* splice flags */ - /* - * actor() private data - */ - union { - void __user *userptr; /* memory to write to */ - struct file *file; /* file to read/write */ - void *data; /* cookie */ - } u; - loff_t pos; /* file position */ -}; - -typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *, - struct splice_desc *); -typedef int (splice_direct_actor)(struct pipe_inode_info *, - struct splice_desc *); - -extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *, - loff_t *, size_t, unsigned int, - splice_actor *); -extern ssize_t __splice_from_pipe(struct pipe_inode_info *, - struct splice_desc *, splice_actor *); -extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, - splice_direct_actor *); - #endif diff --git a/include/linux/splice.h b/include/linux/splice.h new file mode 100644 index 000000000000..f8cc97f71cd0 --- /dev/null +++ b/include/linux/splice.h @@ -0,0 +1,72 @@ +/* + * Function declerations and data structures related to the splice + * implementation. + * + * Copyright (C) 2007 Jens Axboe + * + */ +#ifndef SPLICE_H +#define SPLICE_H + +#include + +/* + * splice is tied to pipes as a transport (at least for now), so we'll just + * add the splice flags here. + */ +#define SPLICE_F_MOVE (0x01) /* move pages instead of copying */ +#define SPLICE_F_NONBLOCK (0x02) /* don't block on the pipe splicing (but */ + /* we may still block on the fd we splice */ + /* from/to, of course */ +#define SPLICE_F_MORE (0x04) /* expect more data */ +#define SPLICE_F_GIFT (0x08) /* pages passed in are a gift */ + +/* + * Passed to the actors + */ +struct splice_desc { + unsigned int len, total_len; /* current and remaining length */ + unsigned int flags; /* splice flags */ + /* + * actor() private data + */ + union { + void __user *userptr; /* memory to write to */ + struct file *file; /* file to read/write */ + void *data; /* cookie */ + } u; + loff_t pos; /* file position */ +}; + +struct partial_page { + unsigned int offset; + unsigned int len; +}; + +/* + * Passed to splice_to_pipe + */ +struct splice_pipe_desc { + struct page **pages; /* page map */ + struct partial_page *partial; /* pages[] may not be contig */ + int nr_pages; /* number of pages in map */ + unsigned int flags; /* splice flags */ + const struct pipe_buf_operations *ops;/* ops associated with output pipe */ +}; + +typedef int (splice_actor)(struct pipe_inode_info *, struct pipe_buffer *, + struct splice_desc *); +typedef int (splice_direct_actor)(struct pipe_inode_info *, + struct splice_desc *); + +extern ssize_t splice_from_pipe(struct pipe_inode_info *, struct file *, + loff_t *, size_t, unsigned int, + splice_actor *); +extern ssize_t __splice_from_pipe(struct pipe_inode_info *, + struct splice_desc *, splice_actor *); +extern ssize_t splice_to_pipe(struct pipe_inode_info *, + struct splice_pipe_desc *); +extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, + splice_direct_actor *); + +#endif -- cgit v1.2.3 From 497f9625c2bbd6a8525fb2eedb22a382a6a8253c Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 11 Jun 2007 12:00:45 +0200 Subject: pipe: allow passing around of ops private pointer relay needs this for proper consumption handling, and the network receive support needs it as well to lookup the sk_buff on pipe release. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 1 + include/linux/splice.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 7ba228d52f58..4409167b9eb2 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -14,6 +14,7 @@ struct pipe_buffer { unsigned int offset, len; const struct pipe_buf_operations *ops; unsigned int flags; + unsigned long private; }; struct pipe_inode_info { diff --git a/include/linux/splice.h b/include/linux/splice.h index f8cc97f71cd0..33e447f98a54 100644 --- a/include/linux/splice.h +++ b/include/linux/splice.h @@ -41,6 +41,7 @@ struct splice_desc { struct partial_page { unsigned int offset; unsigned int len; + unsigned long private; }; /* -- cgit v1.2.3 From d054fe3d10cc1f9aec01378c38caa32dffdd0090 Mon Sep 17 00:00:00 2001 From: Carsten Otte Date: Fri, 15 Jun 2007 08:16:22 +0200 Subject: xip sendfile removal This patch removes xip_file_sendfile, the sendfile implementation for xip without replacement. Those customers that use xip on s390 are not using sendfile() as far as we know, and so far s390 is the only platform this could potentially be used on so far. Having sendfile is not a popular feature for execute in place file systems, however we have a working implementation of splice_read() based on fs/splice.c if anyone asks for it. At this point in time, it does not seem preferable to merge splice_read() for xip because it causes extra maintenence effort due to code duplication and it requires struct page behind the xip memory segment. We'd like to get rid of that in favor of supporting flash based embedded platforms (Monta Vista work) soon. Signed-off-by: Carsten Otte Signed-off-by: Jens Axboe --- include/linux/fs.h | 3 --- 1 file changed, 3 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index 87c1d3e9d6cb..894620e9402c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1791,9 +1791,6 @@ extern int nonseekable_open(struct inode * inode, struct file * filp); #ifdef CONFIG_FS_XIP extern ssize_t xip_file_read(struct file *filp, char __user *buf, size_t len, loff_t *ppos); -extern ssize_t xip_file_sendfile(struct file *in_file, loff_t *ppos, - size_t count, read_actor_t actor, - void *target); extern int xip_file_mmap(struct file * file, struct vm_area_struct * vma); extern ssize_t xip_file_write(struct file *filp, const char __user *buf, size_t len, loff_t *ppos); -- cgit v1.2.3 From d96e6e71647846e0dab097efd9b8bf3a3a556dca Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Mon, 11 Jun 2007 12:18:52 +0200 Subject: Remove remnants of sendfile() There are now zero users of .sendfile() in the kernel, so kill it from the file_operations structure and in do_sendfile(). Signed-off-by: Jens Axboe --- include/linux/fs.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/fs.h b/include/linux/fs.h index 894620e9402c..4f0b3bf5983c 100644 --- a/include/linux/fs.h +++ b/include/linux/fs.h @@ -1054,7 +1054,7 @@ struct block_device_operations { }; /* - * "descriptor" for what we're up to with a read for sendfile(). + * "descriptor" for what we're up to with a read. * This allows us to use the same read code yet * have multiple different users of the data that * we read from a file. @@ -1105,7 +1105,6 @@ struct file_operations { int (*aio_fsync) (struct kiocb *, int datasync); int (*fasync) (int, struct file *, int); int (*lock) (struct file *, int, struct file_lock *); - ssize_t (*sendfile) (struct file *, loff_t *, size_t, read_actor_t, void *); ssize_t (*sendpage) (struct file *, struct page *, int, size_t, loff_t *, int); unsigned long (*get_unmapped_area)(struct file *, unsigned long, unsigned long, unsigned long, unsigned long); int (*check_flags)(int); -- cgit v1.2.3 From cac36bb06efe4880234524e117e0e712b10b1f16 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Thu, 14 Jun 2007 13:10:48 +0200 Subject: pipe: change the ->pin() operation to ->confirm() The name 'pin' was badly chosen, it doesn't pin a pipe buffer in the most commonly used sense in the kernel. So change the name to 'confirm', after debating this issue with Hugh Dickins a bit. A good return from ->confirm() means that the buffer is really there, and that the contents are good. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index 4409167b9eb2..cc09fe89bf07 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -35,20 +35,21 @@ struct pipe_inode_info { /* * Note on the nesting of these functions: * - * ->pin() + * ->confirm() * ->steal() * ... * ->map() * ... * ->unmap() * - * That is, ->map() must be called on a pinned buffer, same goes for ->steal(). + * That is, ->map() must be called on a confirmed buffer, + * same goes for ->steal(). */ struct pipe_buf_operations { int can_merge; void * (*map)(struct pipe_inode_info *, struct pipe_buffer *, int); void (*unmap)(struct pipe_inode_info *, struct pipe_buffer *, void *); - int (*pin)(struct pipe_inode_info *, struct pipe_buffer *); + int (*confirm)(struct pipe_inode_info *, struct pipe_buffer *); void (*release)(struct pipe_inode_info *, struct pipe_buffer *); int (*steal)(struct pipe_inode_info *, struct pipe_buffer *); void (*get)(struct pipe_inode_info *, struct pipe_buffer *); @@ -69,7 +70,7 @@ void __free_pipe_info(struct pipe_inode_info *); void *generic_pipe_buf_map(struct pipe_inode_info *, struct pipe_buffer *, int); void generic_pipe_buf_unmap(struct pipe_inode_info *, struct pipe_buffer *, void *); void generic_pipe_buf_get(struct pipe_inode_info *, struct pipe_buffer *); -int generic_pipe_buf_pin(struct pipe_inode_info *, struct pipe_buffer *); +int generic_pipe_buf_confirm(struct pipe_inode_info *, struct pipe_buffer *); int generic_pipe_buf_steal(struct pipe_inode_info *, struct pipe_buffer *); #endif -- cgit v1.2.3 From 0845718dafea3e16041d270c256e8516acf4e13d Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 12 Jun 2007 20:51:32 +0200 Subject: pipe: add documentation and comments As per Andrew Mortons request, here's a set of documentation for the generic pipe_buf_operations hooks, the pipe, and pipe_buffer structures. Signed-off-by: Jens Axboe --- include/linux/pipe_fs_i.h | 77 ++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 76 insertions(+), 1 deletion(-) (limited to 'include/linux') diff --git a/include/linux/pipe_fs_i.h b/include/linux/pipe_fs_i.h index cc09fe89bf07..8e4120285f72 100644 --- a/include/linux/pipe_fs_i.h +++ b/include/linux/pipe_fs_i.h @@ -9,6 +9,15 @@ #define PIPE_BUF_FLAG_ATOMIC 0x02 /* was atomically mapped */ #define PIPE_BUF_FLAG_GIFT 0x04 /* page is a gift */ +/** + * struct pipe_buffer - a linux kernel pipe buffer + * @page: the page containing the data for the pipe buffer + * @offset: offset of data inside the @page + * @len: length of data inside the @page + * @ops: operations associated with this buffer. See @pipe_buf_operations. + * @flags: pipe buffer flags. See above. + * @private: private data owned by the ops. + **/ struct pipe_buffer { struct page *page; unsigned int offset, len; @@ -17,6 +26,22 @@ struct pipe_buffer { unsigned long private; }; +/** + * struct pipe_inode_info - a linux kernel pipe + * @wait: reader/writer wait point in case of empty/full pipe + * @nrbufs: the number of non-empty pipe buffers in this pipe + * @curbuf: the current pipe buffer entry + * @tmp_page: cached released page + * @readers: number of current readers of this pipe + * @writers: number of current writers of this pipe + * @waiting_writers: number of writers blocked waiting for room + * @r_counter: reader counter + * @w_counter: writer counter + * @fasync_readers: reader side fasync + * @fasync_writers: writer side fasync + * @inode: inode this pipe is attached to + * @bufs: the circular array of pipe buffers + **/ struct pipe_inode_info { wait_queue_head_t wait; unsigned int nrbufs, curbuf; @@ -43,15 +68,65 @@ struct pipe_inode_info { * ->unmap() * * That is, ->map() must be called on a confirmed buffer, - * same goes for ->steal(). + * same goes for ->steal(). See below for the meaning of each + * operation. Also see kerneldoc in fs/pipe.c for the pipe + * and generic variants of these hooks. */ struct pipe_buf_operations { + /* + * This is set to 1, if the generic pipe read/write may coalesce + * data into an existing buffer. If this is set to 0, a new pipe + * page segment is always used for new data. + */ int can_merge; + + /* + * ->map() returns a virtual address mapping of the pipe buffer. + * The last integer flag reflects whether this should be an atomic + * mapping or not. The atomic map is faster, however you can't take + * page faults before calling ->unmap() again. So if you need to eg + * access user data through copy_to/from_user(), then you must get + * a non-atomic map. ->map() uses the KM_USER0 atomic slot for + * atomic maps, so you can't map more than one pipe_buffer at once + * and you have to be careful if mapping another page as source + * or destination for a copy (IOW, it has to use something else + * than KM_USER0). + */ void * (*map)(struct pipe_inode_info *, struct pipe_buffer *, int); + + /* + * Undoes ->map(), finishes the virtual mapping of the pipe buffer. + */ void (*unmap)(struct pipe_inode_info *, struct pipe_buffer *, void *); + + /* + * ->confirm() verifies that the data in the pipe buffer is there + * and that the contents are good. If the pages in the pipe belong + * to a file system, we may need to wait for IO completion in this + * hook. Returns 0 for good, or a negative error value in case of + * error. + */ int (*confirm)(struct pipe_inode_info *, struct pipe_buffer *); + + /* + * When the contents of this pipe buffer has been completely + * consumed by a reader, ->release() is called. + */ void (*release)(struct pipe_inode_info *, struct pipe_buffer *); + + /* + * Attempt to take ownership of the pipe buffer and its contents. + * ->steal() returns 0 for success, in which case the contents + * of the pipe (the buf->page) is locked and now completely owned + * by the caller. The page may then be transferred to a different + * mapping, the most often used case is insertion into different + * file address space cache. + */ int (*steal)(struct pipe_inode_info *, struct pipe_buffer *); + + /* + * Get a reference to the pipe buffer. + */ void (*get)(struct pipe_inode_info *, struct pipe_buffer *); }; -- cgit v1.2.3 From 4a11b59d8283662193a9c6a9c14c58d1b9bf0617 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 4 May 2007 00:27:45 +0400 Subject: [BATTERY] Universal power supply class (was: battery class) This class is result of "external power" and "battery" classes merge, as suggested by David Woodhouse. He also implemented uevent support. Here how userspace seeing it now: # ls /sys/class/power\ supply/ ac main-battery usb # cat /sys/class/power\ supply/ac/type AC # cat /sys/class/power\ supply/usb/type USB # cat /sys/class/power\ supply/main-battery/type Battery # cat /sys/class/power\ supply/ac/online 1 # cat /sys/class/power\ supply/usb/online 0 # cat /sys/class/power\ supply/main-battery/status Charging # cat /sys/class/leds/h5400\:red-left/trigger none h5400-radio timer hwtimer ac-online usb-online main-battery-charging-or-full [main-battery-charging] main-battery-full Signed-off-by: Anton Vorontsov Signed-off-by: David Woodhouse Signed-off-by: Andrew Morton --- include/linux/power_supply.h | 180 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) create mode 100644 include/linux/power_supply.h (limited to 'include/linux') diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h new file mode 100644 index 000000000000..606c0957997f --- /dev/null +++ b/include/linux/power_supply.h @@ -0,0 +1,180 @@ +/* + * Universal power supply monitor class + * + * Copyright © 2007 Anton Vorontsov + * Copyright © 2004 Szabolcs Gyurko + * Copyright © 2003 Ian Molton + * + * Modified: 2004, Oct Szabolcs Gyurko + * + * You may use this code as per GPL version 2 + */ + +#ifndef __LINUX_POWER_SUPPLY_H__ +#define __LINUX_POWER_SUPPLY_H__ + +#include +#include +#include + +/* + * All voltages, currents, charges, energies, time and temperatures in uV, + * µA, µAh, µWh, seconds and tenths of degree Celsius unless otherwise + * stated. It's driver's job to convert its raw values to units in which + * this class operates. + */ + +/* + * For systems where the charger determines the maximum battery capacity + * the min and max fields should be used to present these values to user + * space. Unused/unknown fields will not appear in sysfs. + */ + +enum { + POWER_SUPPLY_STATUS_UNKNOWN = 0, + POWER_SUPPLY_STATUS_CHARGING, + POWER_SUPPLY_STATUS_DISCHARGING, + POWER_SUPPLY_STATUS_NOT_CHARGING, + POWER_SUPPLY_STATUS_FULL, +}; + +enum { + POWER_SUPPLY_HEALTH_UNKNOWN = 0, + POWER_SUPPLY_HEALTH_GOOD, + POWER_SUPPLY_HEALTH_OVERHEAT, + POWER_SUPPLY_HEALTH_DEAD, + POWER_SUPPLY_HEALTH_OVERVOLTAGE, + POWER_SUPPLY_HEALTH_UNSPEC_FAILURE, +}; + +enum { + POWER_SUPPLY_TECHNOLOGY_UNKNOWN = 0, + POWER_SUPPLY_TECHNOLOGY_NiMH, + POWER_SUPPLY_TECHNOLOGY_LION, + POWER_SUPPLY_TECHNOLOGY_LIPO, + POWER_SUPPLY_TECHNOLOGY_LiFe, + POWER_SUPPLY_TECHNOLOGY_NiCd, +}; + +enum { + POWER_SUPPLY_CAPACITY_LEVEL_UNKNOWN = 0, + POWER_SUPPLY_CAPACITY_LEVEL_CRITICAL, + POWER_SUPPLY_CAPACITY_LEVEL_LOW, + POWER_SUPPLY_CAPACITY_LEVEL_NORMAL, + POWER_SUPPLY_CAPACITY_LEVEL_HIGH, + POWER_SUPPLY_CAPACITY_LEVEL_FULL, +}; + +enum power_supply_property { + /* Properties of type `int' */ + POWER_SUPPLY_PROP_STATUS = 0, + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_ONLINE, + POWER_SUPPLY_PROP_TECHNOLOGY, + POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_VOLTAGE_AVG, + POWER_SUPPLY_PROP_CURRENT_NOW, + POWER_SUPPLY_PROP_CURRENT_AVG, + POWER_SUPPLY_PROP_CHARGE_FULL_DESIGN, + POWER_SUPPLY_PROP_CHARGE_EMPTY_DESIGN, + POWER_SUPPLY_PROP_CHARGE_FULL, + POWER_SUPPLY_PROP_CHARGE_EMPTY, + POWER_SUPPLY_PROP_CHARGE_NOW, + POWER_SUPPLY_PROP_CHARGE_AVG, + POWER_SUPPLY_PROP_ENERGY_FULL_DESIGN, + POWER_SUPPLY_PROP_ENERGY_EMPTY_DESIGN, + POWER_SUPPLY_PROP_ENERGY_FULL, + POWER_SUPPLY_PROP_ENERGY_EMPTY, + POWER_SUPPLY_PROP_ENERGY_NOW, + POWER_SUPPLY_PROP_ENERGY_AVG, + POWER_SUPPLY_PROP_CAPACITY, /* in percents! */ + POWER_SUPPLY_PROP_CAPACITY_LEVEL, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_TEMP_AMBIENT, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_NOW, + POWER_SUPPLY_PROP_TIME_TO_EMPTY_AVG, + POWER_SUPPLY_PROP_TIME_TO_FULL_NOW, + POWER_SUPPLY_PROP_TIME_TO_FULL_AVG, + /* Properties of type `const char *' */ + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_MANUFACTURER, +}; + +enum power_supply_type { + POWER_SUPPLY_TYPE_BATTERY = 0, + POWER_SUPPLY_TYPE_UPS, + POWER_SUPPLY_TYPE_MAINS, + POWER_SUPPLY_TYPE_USB, +}; + +union power_supply_propval { + int intval; + const char *strval; +}; + +struct power_supply { + const char *name; + enum power_supply_type type; + enum power_supply_property *properties; + size_t num_properties; + + char **supplied_to; + size_t num_supplicants; + + int (*get_property)(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val); + void (*external_power_changed)(struct power_supply *psy); + + /* For APM emulation, think legacy userspace. */ + int use_for_apm; + + /* private */ + struct device *dev; + struct work_struct changed_work; + +#ifdef CONFIG_LEDS_TRIGGERS + struct led_trigger *charging_full_trig; + char *charging_full_trig_name; + struct led_trigger *charging_trig; + char *charging_trig_name; + struct led_trigger *full_trig; + char *full_trig_name; + struct led_trigger *online_trig; + char *online_trig_name; +#endif +}; + +/* + * This is recommended structure to specify static power supply parameters. + * Generic one, parametrizable for different power supplies. Power supply + * class itself does not use it, but that's what implementing most platform + * drivers, should try reuse for consistency. + */ + +struct power_supply_info { + const char *name; + int technology; + int voltage_max_design; + int voltage_min_design; + int charge_full_design; + int charge_empty_design; + int energy_full_design; + int energy_empty_design; + int use_for_apm; +}; + +extern void power_supply_changed(struct power_supply *psy); +extern int power_supply_am_i_supplied(struct power_supply *psy); + +extern int power_supply_register(struct device *parent, + struct power_supply *psy); +extern void power_supply_unregister(struct power_supply *psy); + +/* For APM emulation, think legacy userspace. */ +extern struct class *power_supply_class; + +#endif /* __LINUX_POWER_SUPPLY_H__ */ -- cgit v1.2.3 From b2998049cfae4f4a81c4bb048814d34912017bb9 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Fri, 4 May 2007 00:32:17 +0400 Subject: [BATTERY] pda_power platform driver Common power driver for PDAs and phones with one or two external power supplies (AC/USB) connected to main and backup batteries, and optional builtin charger. It's used to stop logic duplication through different embedded devices. So, power supply *logic* is here. pda_power register power supplies, and will take care about notifying batteries about power changes through external power interface. Currently, power consumption legal limits (including USB power consumption) should be handled by platform code, inside set_charge function. Signed-off-by: Anton Vorontsov Signed-off-by: Roman Moravcik Signed-off-by: David Woodhouse --- include/linux/pda_power.h | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 include/linux/pda_power.h (limited to 'include/linux') diff --git a/include/linux/pda_power.h b/include/linux/pda_power.h new file mode 100644 index 000000000000..1375f15797e7 --- /dev/null +++ b/include/linux/pda_power.h @@ -0,0 +1,31 @@ +/* + * Common power driver for PDAs and phones with one or two external + * power supplies (AC/USB) connected to main and backup batteries, + * and optional builtin charger. + * + * Copyright © 2007 Anton Vorontsov + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef __PDA_POWER_H__ +#define __PDA_POWER_H__ + +#define PDA_POWER_CHARGE_AC (1 << 0) +#define PDA_POWER_CHARGE_USB (1 << 1) + +struct pda_power_pdata { + int (*is_ac_online)(void); + int (*is_usb_online)(void); + void (*set_charge)(int flags); + + char **supplied_to; + size_t num_supplicants; + + unsigned int wait_for_status; /* msecs, default is 500 */ + unsigned int wait_for_charger; /* msecs, default is 500 */ +}; + +#endif /* __PDA_POWER_H__ */ -- cgit v1.2.3 From 15c31be4d5bd2402c6f5a288d56a24edc9252b71 Mon Sep 17 00:00:00 2001 From: Jens Axboe Date: Tue, 10 Jul 2007 13:43:25 +0200 Subject: cfq-iosched: fix async queue behaviour With the cfq_queue hash removal, we inadvertently got rid of the async queue sharing. This was not intentional, in fact CFQ purposely shares the async queue per priority level to get good merging for async writes. So put some logic in cfq_get_queue() to track the shared queues. Signed-off-by: Jens Axboe --- include/linux/ioprio.h | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'include/linux') diff --git a/include/linux/ioprio.h b/include/linux/ioprio.h index 8e2042b9d471..2eaa142cd061 100644 --- a/include/linux/ioprio.h +++ b/include/linux/ioprio.h @@ -47,8 +47,10 @@ enum { #define IOPRIO_NORM (4) static inline int task_ioprio(struct task_struct *task) { - WARN_ON(!ioprio_valid(task->ioprio)); - return IOPRIO_PRIO_DATA(task->ioprio); + if (ioprio_valid(task->ioprio)) + return IOPRIO_PRIO_DATA(task->ioprio); + + return IOPRIO_NORM; } static inline int task_nice_ioprio(struct task_struct *task) -- cgit v1.2.3 From 688b3d720820a9e3e2e9d5882be64a28f649e206 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Mon, 9 Jul 2007 16:29:16 +0100 Subject: [MIPS] Delete Ocelot 3 support. Signed-off-by: Ralf Baechle --- include/linux/mv643xx.h | 4 ---- 1 file changed, 4 deletions(-) (limited to 'include/linux') diff --git a/include/linux/mv643xx.h b/include/linux/mv643xx.h index c6d4ab86b83c..b021b3a2b65a 100644 --- a/include/linux/mv643xx.h +++ b/include/linux/mv643xx.h @@ -13,10 +13,6 @@ #ifndef __ASM_MV643XX_H #define __ASM_MV643XX_H -#ifdef __mips__ -#include -#include -#endif #include /****************************************/ -- cgit v1.2.3 From 64c70b1cf43de158282bc1675918d503e5b15cc1 Mon Sep 17 00:00:00 2001 From: Richard Purdie Date: Tue, 10 Jul 2007 17:22:24 -0700 Subject: Add LZO1X algorithm to the kernel This is a hybrid version of the patch to add the LZO1X compression algorithm to the kernel. Nitin and myself have merged the best parts of the various patches to form this version which we're both happy with (and are jointly signing off). The performance of this version is equivalent to the original minilzo code it was based on. Bytecode comparisons have also been made on ARM, i386 and x86_64 with favourable results. There are several users of LZO lined up including jffs2, crypto and reiser4 since its much faster than zlib. Signed-off-by: Nitin Gupta Signed-off-by: Richard Purdie Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/lzo.h | 44 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 include/linux/lzo.h (limited to 'include/linux') diff --git a/include/linux/lzo.h b/include/linux/lzo.h new file mode 100644 index 000000000000..582d8b711a13 --- /dev/null +++ b/include/linux/lzo.h @@ -0,0 +1,44 @@ +#ifndef __LZO_H__ +#define __LZO_H__ +/* + * LZO Public Kernel Interface + * A mini subset of the LZO real-time data compression library + * + * Copyright (C) 1996-2005 Markus F.X.J. Oberhumer + * + * The full LZO package can be found at: + * http://www.oberhumer.com/opensource/lzo/ + * + * Changed for kernel use by: + * Nitin Gupta + * Richard Purdie + */ + +#define LZO1X_MEM_COMPRESS (16384 * sizeof(unsigned char *)) +#define LZO1X_1_MEM_COMPRESS LZO1X_MEM_COMPRESS + +#define lzo1x_worst_compress(x) (x + (x / 64) + 16 + 3) + +/* This requires 'workmem' of size LZO1X_1_MEM_COMPRESS */ +int lzo1x_1_compress(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len, void *wrkmem); + +/* safe decompression with overrun testing */ +int lzo1x_decompress_safe(const unsigned char *src, size_t src_len, + unsigned char *dst, size_t *dst_len); + +/* + * Return values (< 0 = Error) + */ +#define LZO_E_OK 0 +#define LZO_E_ERROR (-1) +#define LZO_E_OUT_OF_MEMORY (-2) +#define LZO_E_NOT_COMPRESSIBLE (-3) +#define LZO_E_INPUT_OVERRUN (-4) +#define LZO_E_OUTPUT_OVERRUN (-5) +#define LZO_E_LOOKBEHIND_OVERRUN (-6) +#define LZO_E_EOF_NOT_FOUND (-7) +#define LZO_E_INPUT_NOT_CONSUMED (-8) +#define LZO_E_NOT_YET_IMPLEMENTED (-9) + +#endif -- cgit v1.2.3 From bcf67e16251c42302499499b1c50f7d35622f564 Mon Sep 17 00:00:00 2001 From: Pavel Emelianov Date: Tue, 10 Jul 2007 17:22:26 -0700 Subject: Make common helpers for seq_files that work with list_heads Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. This makes code about 300 lines smaller: The first version of this patch made the helper functions static inline in the seq_file.h header. This patch moves them to the fs/seq_file.c as Andrew proposed. The vmlinux .text section sizes are as follows: 2.6.22-rc1-mm1: 0x001794d5 with the previous version: 0x00179505 with this patch: 0x00179135 The config file used was make allnoconfig with the "y" inclusion of all the possible options to make the files modified by the patch compile plus drivers I have on the test node. This patch: Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. Signed-off-by: Pavel Emelianov Cc: "David S. Miller" Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/seq_file.h | 11 +++++++++++ 1 file changed, 11 insertions(+) (limited to 'include/linux') diff --git a/include/linux/seq_file.h b/include/linux/seq_file.h index 3e3cccbb1cac..83783ab0f552 100644 --- a/include/linux/seq_file.h +++ b/include/linux/seq_file.h @@ -50,5 +50,16 @@ int seq_release_private(struct inode *, struct file *); #define SEQ_START_TOKEN ((void *)1) +/* + * Helpers for iteration over list_head-s in seq_files + */ + +extern struct list_head *seq_list_start(struct list_head *head, + loff_t pos); +extern struct list_head *seq_list_start_head(struct list_head *head, + loff_t pos); +extern struct list_head *seq_list_next(void *v, struct list_head *head, + loff_t *ppos); + #endif #endif -- cgit v1.2.3