-** Introduction\r
-This document describes what I managed to discover about the protocol used to\r
-specify force effects to I-Force 2.0 devices. None of this information comes\r
-from Immerse. That's why you should not trust what is written in this\r
-document. This document is intended to help understanding the protocol.\r
-This is not a reference. Comments and corrections are welcome. To contact me,\r
-send an email to: deneux@ifrance.com\r
-\r
-** WARNING **\r
-I may not be held responsible for any dammage or harm caused if you try to\r
-send data to your I-Force device based on what you read in this document.\r
-\r
-** Preliminary Notes:\r
-All values are hexadecimal with big-endian encoding (msb on the left). Beware,\r
-values inside packets are encoded using little-endian. Bytes whose roles are\r
-unknown are marked ??? Information that needs deeper inspection is marked (?)\r
-\r
-** General form of a packet **\r
-This is how packets look when the device uses the rs232 to communicate.\r
-2B OP LEN DATA CS\r
-CS is the checksum. It is equal to the exclusive or of all bytes.\r
-\r
-When using USB:\r
-OP DATA\r
-The 2B, LEN and CS fields have disappeared, probably because USB handles frames and\r
-data corruption is handled or unsignificant.\r
-\r
-First, I describe effects that are sent by the device to the computer\r
-\r
-** Device input state\r
-This packet is used to indicate the state of each button and the value of each\r
-axis\r
-OP= 01 for a joystick, 03 for a wheel\r
-LEN= Varies from device to device\r
-00 X-Axis lsb\r
-01 X-Axis msb\r
-02 Y-Axis lsb, or gas pedal for a wheel\r
-03 Y-Axis msb, or brake pedal for a wheel\r
-04 Throttle\r
-05 Buttons\r
-06 Lower 4 bits: Buttons\r
- Upper 4 bits: Hat\r
-07 Rudder\r
-\r
-** Device effects states\r
-OP= 02\r
-LEN= Varies\r
-00 ? Bit 1 (Value 2) is the value of the deadman switch\r
-01 Bit 8 is set if the effect is playing. Bits 0 to 7 are the effect id.\r
-02 ??\r
-03 Address of parameter block changed (lsb)\r
-04 Address of parameter block changed (msb)\r
-05 Address of second parameter block changed (lsb)\r
-... depending on the number of parameter blocks updated\r
-\r
-** Force effect **\r
-OP= 01\r
-LEN= 0e\r
-00 Channel (when playing several effects at the same time, each must be assigned a channel)\r
-01 Wave form\r
- Val 00 Constant\r
- Val 20 Square\r
- Val 21 Triangle\r
- Val 22 Sine\r
- Val 23 Sawtooth up\r
- Val 24 Sawtooth down\r
- Val 40 Spring (Force = f(pos))\r
- Val 41 Friction (Force = f(velocity)) and Inertia (Force = f(acceleration))\r
-\r
- \r
-02 Axes affected and trigger\r
- Bits 4-7: Val 2 = effect along one axis. Byte 05 indicates direction\r
- Val 4 = X axis only. Byte 05 must contain 5a\r
- Val 8 = Y axis only. Byte 05 must contain b4\r
- Val c = X and Y axes. Bytes 05 must contain 60\r
- Bits 0-3: Val 0 = No trigger\r
- Val x+1 = Button x triggers the effect\r
- When the whole byte is 0, cancel the previously set trigger\r
-\r
-03-04 Duration of effect (little endian encoding, in ms)\r
-\r
-05 Direction of effect, if applicable. Else, see 02 for value to assign.\r
-\r
-06-07 Minimum time between triggering.\r
-\r
-08-09 Address of periodicity or magnitude parameters\r
-0a-0b Address of attack and fade parameters, or ffff if none.\r
-*or*\r
-08-09 Address of interactive parameters for X-axis, or ffff if not applicable\r
-0a-0b Address of interactive parameters for Y-axis, or ffff if not applicable\r
-\r
-0c-0d Delay before execution of effect (little endian encoding, in ms)\r
-\r
-\r
-** Time based parameters **\r
-\r
-*** Attack and fade ***\r
-OP= 02\r
-LEN= 08\r
-00-01 Address where to store the parameteres\r
-02-03 Duration of attack (little endian encoding, in ms)\r
-04 Level at end of attack. Signed byte.\r
-05-06 Duration of fade.\r
-07 Level at end of fade.\r
-\r
-*** Magnitude ***\r
-OP= 03\r
-LEN= 03\r
-00-01 Address\r
-02 Level. Signed byte.\r
-\r
-*** Periodicity ***\r
-OP= 04\r
-LEN= 07\r
-00-01 Address\r
-02 Magnitude. Signed byte.\r
-03 Offset. Signed byte.\r
-04 Phase. Val 00 = 0 deg, Val 40 = 90 degs.\r
-05-06 Period (little endian encoding, in ms)\r
-\r
-** Interactive parameters **\r
-OP= 05\r
-LEN= 0a\r
-00-01 Address\r
-02 Positive Coeff\r
-03 Negative Coeff\r
-04+05 Offset (center)\r
-06+07 Dead band (Val 01F4 = 5000 (decimal))\r
-08 Positive saturation (Val 0a = 1000 (decimal) Val 64 = 10000 (decimal))\r
-09 Negative saturation\r
-\r
-The encoding is a bit funny here: For coeffs, these are signed values. The\r
-maximum value is 64 (100 decimal), the min is 9c.\r
-For the offset, the minimum value is FE0C, the maximum value is 01F4.\r
-For the deadband, the minimum value is 0, the max is 03E8.\r
-\r
-** Controls **\r
-OP= 41\r
-LEN= 03\r
-00 Channel\r
-01 Start/Stop\r
- Val 00: Stop\r
- Val 01: Start and play once.\r
- Val 41: Start and play n times (See byte 02 below)\r
-02 Number of iterations n.\r
-\r
-** Init **\r
-\r
-*** Querying features ***\r
-OP= ff\r
-Query command. Length varies according to the query type.\r
-The general format of this packet is:\r
-ff 01 QUERY [INDEX] CHECKSUM\r
-reponses are of the same form:\r
-FF LEN QUERY VALUE_QUERIED CHECKSUM2\r
-where LEN = 1 + length(VALUE_QUERIED)\r
-\r
-**** Query ram size ****\r
-QUERY = 42 ('B'uffer size)\r
-The device should reply with the same packet plus two additionnal bytes\r
-containing the size of the memory:\r
-ff 03 42 03 e8 CS would mean that the device has 1000 bytes of ram available.\r
-\r
-**** Query number of effects ****\r
-QUERY = 4e ('N'umber of effects)\r
-The device should respond by sending the number of effects that can be played\r
-at the same time (one byte)\r
-ff 02 4e 14 CS would stand for 20 effects.\r
-\r
-**** Vendor's id ****\r
-QUERY = 4d ('M'anufacturer)\r
-Query the vendors'id (2 bytes)\r
-\r
-**** Product id *****\r
-QUERY = 50 ('P'roduct)\r
-Query the product id (2 bytes)\r
-\r
-**** Open device ****\r
-QUERY = 4f ('O'pen) \r
-No data returned.\r
-\r
-**** Close device *****\r
-QUERY = 43 ('C')lose\r
-No data returned.\r
-\r
-**** Query effect ****\r
-QUERY = 45 ('E') \r
-Send effect type.\r
-Returns nonzero if supported (2 bytes)\r
-\r
-**** Firmware Version ****\r
-QUERY = 56 ('V'ersion)\r
-Sends back 3 bytes - major, minor, subminor\r
-\r
-*** Initialisation of the device ***\r
-\r
-**** Set Control ****\r
-!!! Device dependent, can be different on different models !!!\r
-OP= 40 <idx> <val> [<val>]\r
-LEN= 2 or 3\r
-00 Idx\r
- Idx 00 Set dead zone (0..2048) \r
- Idx 01 Ignore Deadman sensor (0..1) \r
- Idx 02 Enable comm watchdog (0..1) \r
- Idx 03 Set the strength of the spring (0..100) \r
- Idx 04 Enable or disable the spring (0/1)\r
- Idx 05 Set axis saturation threshold (0..2048) \r
-\r
-**** Set Effect State ****\r
-OP= 42 <val>\r
-LEN= 1\r
-00 State\r
- Bit 3 Pause force feedback\r
- Bit 2 Enable force feedback\r
- Bit 0 Stop all effects\r
-\r
-**** Set overall gain ****\r
-OP= 43 <val>\r
-LEN= 1\r
-00 Gain\r
- Val 00 = 0%\r
- Val 40 = 50%\r
- Val 80 = 100%\r
-\r
-** Parameter memory **\r
-\r
-Each device has a certain amount of memory to store parameters of effects.\r
-The amount of RAM may vary, I encountered values from 200 to 1000 bytes. Below\r
-is the amount of memory apparently needed for every set of parameters:\r
- - period : 0c\r
- - magnitude : 02\r
- - attack and fade : 0e\r
- - interactive : 08\r
-\r
-** Appendix: How to study the protocol ? **\r
-\r
-1. Generate effects using the force editor provided with the DirectX SDK, or use Immersion Studio (freely available at their web site in the developer section: www.immersion.com)\r
-2. Start a soft spying RS232 or USB (depending on where you connected your joystick/wheel). I used ComPortSpy from fCoder (alpha version!)\r
-3. Play the effect, and watch what happens on the spy screen.\r
-\r
-A few words about ComPortSpy:\r
-At first glance, this soft seems, hum, well... buggy. In fact, data appear with a few seconds latency. Personnaly, I restart it every time I play an effect.\r
-Remember it's free (as in free beer) and alpha!\r
-\r
-** URLS **\r
-Check www.immerse.com for Immersion Studio, and www.fcoder.com for ComPortSpy.\r
-\r
-** Author of this document **\r
-Johann Deneux <deneux@ifrance.com>\r
-Home page at http://www.esil.univ-mrs.fr/~jdeneux/projects/ff/\r
-\r
-Additions by Vojtech Pavlik.\r
-\r
-I-Force is trademark of Immersion Corp.\r
+** Introduction
+This document describes what I managed to discover about the protocol used to
+specify force effects to I-Force 2.0 devices. None of this information comes
+from Immerse. That's why you should not trust what is written in this
+document. This document is intended to help understanding the protocol.
+This is not a reference. Comments and corrections are welcome. To contact me,
+send an email to: deneux@ifrance.com
+
+** WARNING **
+I may not be held responsible for any dammage or harm caused if you try to
+send data to your I-Force device based on what you read in this document.
+
+** Preliminary Notes:
+All values are hexadecimal with big-endian encoding (msb on the left). Beware,
+values inside packets are encoded using little-endian. Bytes whose roles are
+unknown are marked ??? Information that needs deeper inspection is marked (?)
+
+** General form of a packet **
+This is how packets look when the device uses the rs232 to communicate.
+2B OP LEN DATA CS
+CS is the checksum. It is equal to the exclusive or of all bytes.
+
+When using USB:
+OP DATA
+The 2B, LEN and CS fields have disappeared, probably because USB handles frames and
+data corruption is handled or unsignificant.
+
+First, I describe effects that are sent by the device to the computer
+
+** Device input state
+This packet is used to indicate the state of each button and the value of each
+axis
+OP= 01 for a joystick, 03 for a wheel
+LEN= Varies from device to device
+00 X-Axis lsb
+01 X-Axis msb
+02 Y-Axis lsb, or gas pedal for a wheel
+03 Y-Axis msb, or brake pedal for a wheel
+04 Throttle
+05 Buttons
+06 Lower 4 bits: Buttons
+ Upper 4 bits: Hat
+07 Rudder
+
+** Device effects states
+OP= 02
+LEN= Varies
+00 ? Bit 1 (Value 2) is the value of the deadman switch
+01 Bit 8 is set if the effect is playing. Bits 0 to 7 are the effect id.
+02 ??
+03 Address of parameter block changed (lsb)
+04 Address of parameter block changed (msb)
+05 Address of second parameter block changed (lsb)
+... depending on the number of parameter blocks updated
+
+** Force effect **
+OP= 01
+LEN= 0e
+00 Channel (when playing several effects at the same time, each must be assigned a channel)
+01 Wave form
+ Val 00 Constant
+ Val 20 Square
+ Val 21 Triangle
+ Val 22 Sine
+ Val 23 Sawtooth up
+ Val 24 Sawtooth down
+ Val 40 Spring (Force = f(pos))
+ Val 41 Friction (Force = f(velocity)) and Inertia (Force = f(acceleration))
+
+
+02 Axes affected and trigger
+ Bits 4-7: Val 2 = effect along one axis. Byte 05 indicates direction
+ Val 4 = X axis only. Byte 05 must contain 5a
+ Val 8 = Y axis only. Byte 05 must contain b4
+ Val c = X and Y axes. Bytes 05 must contain 60
+ Bits 0-3: Val 0 = No trigger
+ Val x+1 = Button x triggers the effect
+ When the whole byte is 0, cancel the previously set trigger
+
+03-04 Duration of effect (little endian encoding, in ms)
+
+05 Direction of effect, if applicable. Else, see 02 for value to assign.
+
+06-07 Minimum time between triggering.
+
+08-09 Address of periodicity or magnitude parameters
+0a-0b Address of attack and fade parameters, or ffff if none.
+*or*
+08-09 Address of interactive parameters for X-axis, or ffff if not applicable
+0a-0b Address of interactive parameters for Y-axis, or ffff if not applicable
+
+0c-0d Delay before execution of effect (little endian encoding, in ms)
+
+
+** Time based parameters **
+
+*** Attack and fade ***
+OP= 02
+LEN= 08
+00-01 Address where to store the parameteres
+02-03 Duration of attack (little endian encoding, in ms)
+04 Level at end of attack. Signed byte.
+05-06 Duration of fade.
+07 Level at end of fade.
+
+*** Magnitude ***
+OP= 03
+LEN= 03
+00-01 Address
+02 Level. Signed byte.
+
+*** Periodicity ***
+OP= 04
+LEN= 07
+00-01 Address
+02 Magnitude. Signed byte.
+03 Offset. Signed byte.
+04 Phase. Val 00 = 0 deg, Val 40 = 90 degs.
+05-06 Period (little endian encoding, in ms)
+
+** Interactive parameters **
+OP= 05
+LEN= 0a
+00-01 Address
+02 Positive Coeff
+03 Negative Coeff
+04+05 Offset (center)
+06+07 Dead band (Val 01F4 = 5000 (decimal))
+08 Positive saturation (Val 0a = 1000 (decimal) Val 64 = 10000 (decimal))
+09 Negative saturation
+
+The encoding is a bit funny here: For coeffs, these are signed values. The
+maximum value is 64 (100 decimal), the min is 9c.
+For the offset, the minimum value is FE0C, the maximum value is 01F4.
+For the deadband, the minimum value is 0, the max is 03E8.
+
+** Controls **
+OP= 41
+LEN= 03
+00 Channel
+01 Start/Stop
+ Val 00: Stop
+ Val 01: Start and play once.
+ Val 41: Start and play n times (See byte 02 below)
+02 Number of iterations n.
+
+** Init **
+
+*** Querying features ***
+OP= ff
+Query command. Length varies according to the query type.
+The general format of this packet is:
+ff 01 QUERY [INDEX] CHECKSUM
+reponses are of the same form:
+FF LEN QUERY VALUE_QUERIED CHECKSUM2
+where LEN = 1 + length(VALUE_QUERIED)
+
+**** Query ram size ****
+QUERY = 42 ('B'uffer size)
+The device should reply with the same packet plus two additionnal bytes
+containing the size of the memory:
+ff 03 42 03 e8 CS would mean that the device has 1000 bytes of ram available.
+
+**** Query number of effects ****
+QUERY = 4e ('N'umber of effects)
+The device should respond by sending the number of effects that can be played
+at the same time (one byte)
+ff 02 4e 14 CS would stand for 20 effects.
+
+**** Vendor's id ****
+QUERY = 4d ('M'anufacturer)
+Query the vendors'id (2 bytes)
+
+**** Product id *****
+QUERY = 50 ('P'roduct)
+Query the product id (2 bytes)
+
+**** Open device ****
+QUERY = 4f ('O'pen)
+No data returned.
+
+**** Close device *****
+QUERY = 43 ('C')lose
+No data returned.
+
+**** Query effect ****
+QUERY = 45 ('E')
+Send effect type.
+Returns nonzero if supported (2 bytes)
+
+**** Firmware Version ****
+QUERY = 56 ('V'ersion)
+Sends back 3 bytes - major, minor, subminor
+
+*** Initialisation of the device ***
+
+**** Set Control ****
+!!! Device dependent, can be different on different models !!!
+OP= 40 <idx> <val> [<val>]
+LEN= 2 or 3
+00 Idx
+ Idx 00 Set dead zone (0..2048)
+ Idx 01 Ignore Deadman sensor (0..1)
+ Idx 02 Enable comm watchdog (0..1)
+ Idx 03 Set the strength of the spring (0..100)
+ Idx 04 Enable or disable the spring (0/1)
+ Idx 05 Set axis saturation threshold (0..2048)
+
+**** Set Effect State ****
+OP= 42 <val>
+LEN= 1
+00 State
+ Bit 3 Pause force feedback
+ Bit 2 Enable force feedback
+ Bit 0 Stop all effects
+
+**** Set overall gain ****
+OP= 43 <val>
+LEN= 1
+00 Gain
+ Val 00 = 0%
+ Val 40 = 50%
+ Val 80 = 100%
+
+** Parameter memory **
+
+Each device has a certain amount of memory to store parameters of effects.
+The amount of RAM may vary, I encountered values from 200 to 1000 bytes. Below
+is the amount of memory apparently needed for every set of parameters:
+ - period : 0c
+ - magnitude : 02
+ - attack and fade : 0e
+ - interactive : 08
+
+** Appendix: How to study the protocol ? **
+
+1. Generate effects using the force editor provided with the DirectX SDK, or use Immersion Studio (freely available at their web site in the developer section: www.immersion.com)
+2. Start a soft spying RS232 or USB (depending on where you connected your joystick/wheel). I used ComPortSpy from fCoder (alpha version!)
+3. Play the effect, and watch what happens on the spy screen.
+
+A few words about ComPortSpy:
+At first glance, this soft seems, hum, well... buggy. In fact, data appear with a few seconds latency. Personnaly, I restart it every time I play an effect.
+Remember it's free (as in free beer) and alpha!
+
+** URLS **
+Check www.immerse.com for Immersion Studio, and www.fcoder.com for ComPortSpy.
+
+** Author of this document **
+Johann Deneux <deneux@ifrance.com>
+Home page at http://www.esil.univ-mrs.fr/~jdeneux/projects/ff/
+
+Additions by Vojtech Pavlik.
+
+I-Force is trademark of Immersion Corp.
- Kernel Parameters
- ~~~~~~~~~~~~~~~~~
+ Kernel Parameters
+ ~~~~~~~~~~~~~~~~~
The following is a consolidated list of the kernel parameters as implemented
(mostly) by the __setup() macro and sorted into English Dictionary order
reboot= [BUGS=X86-32,BUGS=ARM,BUGS=IA-64] Rebooting mode
Format: <reboot_mode>[,<reboot_mode2>[,...]]
- See arch/*/kernel/reboot.c or arch/*/kernel/process.c
+ See arch/*/kernel/reboot.c or arch/*/kernel/process.c
reserve= [KNL,BUGS] Force the kernel to ignore some iomem area
selinux_compat_net =
[SELINUX] Set initial selinux_compat_net flag value.
- Format: { "0" | "1" }
- 0 -- use new secmark-based packet controls
- 1 -- use legacy packet controls
- Default value is 0 (preferred).
- Value can be changed at runtime via
- /selinux/compat_net.
+ Format: { "0" | "1" }
+ 0 -- use new secmark-based packet controls
+ 1 -- use legacy packet controls
+ Default value is 0 (preferred).
+ Value can be changed at runtime via
+ /selinux/compat_net.
serialnumber [BUGS=X86-32]
norandmaps Don't use address space randomization
Equivalent to echo 0 > /proc/sys/kernel/randomize_va_space
- unwind_debug=N N > 0 will enable dwarf2 unwinder debugging
+ unwind_debug=N N > 0 will enable dwarf2 unwinder debugging
This is useful to get more information why
you got a "dwarf2 unwinder stuck"
P: Jozsef Kadlecsik
P: Patrick McHardy
M: kaber@trash.net
-L: netfilter-devel@lists.netfilter.org
-L: netfilter@lists.netfilter.org (subscribers-only)
+L: netfilter-devel@vger.kernel.org
+L: netfilter@vger.kernel.org
L: coreteam@netfilter.org
W: http://www.netfilter.org/
W: http://www.iptables.org/
P: Hideaki YOSHIFUJI
M: yoshfuji@linux-ipv6.org
P: Patrick McHardy
-M: kaber@coreworks.de
+M: kaber@trash.net
L: netdev@vger.kernel.org
T: git kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6.git
S: Maintained
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 23
-EXTRAVERSION =-rc6
-NAME = Pink Farting Weasel
+EXTRAVERSION =-rc7
+NAME = Arr Matey! A Hairy Bilge Rat!
# *DOCUMENTATION*
# To see a list of typical targets execute "make help"
if (line >= 0 && line < 16) {
gpio_line_config(line, GPIO_IN);
} else {
- gpio_line_config(EP93XX_GPIO_LINE_F(line), GPIO_IN);
+ gpio_line_config(EP93XX_GPIO_LINE_F(line-16), GPIO_IN);
}
port = line >> 3;
{
unsigned long addr;
- start &= ~(CACHE_LINE_SIZE - 1);
+ if (start & (CACHE_LINE_SIZE - 1)) {
+ start &= ~(CACHE_LINE_SIZE - 1);
+ sync_writel(start, L2X0_CLEAN_INV_LINE_PA, 1);
+ start += CACHE_LINE_SIZE;
+ }
+
+ if (end & (CACHE_LINE_SIZE - 1)) {
+ end &= ~(CACHE_LINE_SIZE - 1);
+ sync_writel(end, L2X0_CLEAN_INV_LINE_PA, 1);
+ }
+
for (addr = start; addr < end; addr += CACHE_LINE_SIZE)
sync_writel(addr, L2X0_INV_LINE_PA, 1);
cache_sync();
hlt
jmp die
- .size die, .-due
+ .size die, .-die
.section ".initdata", "a"
setup_corrupt:
}
/* Set mode (without recalc) */
-static int raw_set_mode(u16 mode)
+static int raw_set_mode(u16 mode, u16 *real_mode)
{
int nmode, i;
struct card_info *card;
if ((mode == nmode && visible) ||
mode == mi->mode ||
- mode == (mi->y << 8)+mi->x)
+ mode == (mi->y << 8)+mi->x) {
+ *real_mode = mi->mode;
return card->set_mode(mi);
+ }
if (visible)
nmode++;
if (mode >= card->xmode_first &&
mode < card->xmode_first+card->xmode_n) {
struct mode_info mix;
- mix.mode = mode;
+ *real_mode = mix.mode = mode;
mix.x = mix.y = 0;
return card->set_mode(&mix);
}
static int set_mode(u16 mode)
{
int rv;
+ u16 real_mode;
/* Very special mode numbers... */
if (mode == VIDEO_CURRENT_MODE)
else if (mode == EXTENDED_VGA)
mode = VIDEO_8POINT;
- rv = raw_set_mode(mode);
+ rv = raw_set_mode(mode, &real_mode);
if (rv)
return rv;
if (mode & VIDEO_RECALC)
vga_recalc_vertical();
+ /* Save the canonical mode number for the kernel, not
+ an alias, size specification or menu position */
+ boot_params.hdr.vid_mode = real_mode;
return 0;
}
#define VIDEO_FIRST_V7 0x0900
# Setting of user mode (AX=mode ID) => CF=success
+
+# For now, we only handle VESA modes (0x0200..0x03ff). To handle other
+# modes, we should probably compile in the video code from the boot
+# directory.
mode_set:
movw %ax, %bx
-#if 0
- cmpb $0xff, %ah
- jz setalias
-
- testb $VIDEO_RECALC>>8, %ah
- jnz _setrec
-
- cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah
- jnc setres
-
- cmpb $VIDEO_FIRST_SPECIAL>>8, %ah
- jz setspc
-
- cmpb $VIDEO_FIRST_V7>>8, %ah
- jz setv7
-#endif
-
- cmpb $VIDEO_FIRST_VESA>>8, %ah
- jnc check_vesa
-#if 0
- orb %ah, %ah
- jz setmenu
-#endif
-
- decb %ah
-# jz setbios Add bios modes later
+ subb $VIDEO_FIRST_VESA>>8, %bh
+ cmpb $2, %bh
+ jb check_vesa
-setbad: clc
+setbad:
+ clc
ret
check_vesa:
- subb $VIDEO_FIRST_VESA>>8, %bh
orw $0x4000, %bx # Use linear frame buffer
movw $0x4f02, %ax # VESA BIOS mode set call
int $0x10
cmpw $0x004f, %ax # AL=4f if implemented
- jnz _setbad # AH=0 if OK
+ jnz setbad # AH=0 if OK
stc
ret
-_setbad: jmp setbad
-
.code32
ALIGN
static void xen_write_cr4(unsigned long cr4)
{
- /* never allow TSC to be disabled */
- native_write_cr4(cr4 & ~X86_CR4_TSD);
+ /* Just ignore cr4 changes; Xen doesn't allow us to do
+ anything anyway. */
}
static unsigned long xen_read_cr3(void)
int dec_tc_bus;
-spinlock_t ioasic_ssr_lock;
+DEFINE_SPINLOCK(ioasic_ssr_lock);
volatile u32 *ioasic_base;
/*
- * Copyright (C) 2003, 2004 Maciej W. Rozycki
+ * Copyright (C) 2003, 2004, 2007 Maciej W. Rozycki
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
".endr\n\t"
".set pop"
:
- : "rn" (align), "rn" (mod));
+ : GCC_IMM_ASM (align), GCC_IMM_ASM (mod));
}
static inline void mult_sh_align_mod(long *v1, long *v2, long *w,
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
+#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/reboot.h>
EXPORT_SYMBOL(soc_type);
unsigned int periph_rev;
unsigned int zbbus_mhz;
+EXPORT_SYMBOL(zbbus_mhz);
static unsigned int part_type;
struct cpu_purr_data *p = &__get_cpu_var(cpu_purr_data);
local_irq_save(flags);
- p->tb = mftb();
+ p->tb = get_tb_or_rtc();
p->purr = mfspr(SPRN_PURR);
wmb();
p->initialized = 1;
*/
void snapshot_timebase(void)
{
- __get_cpu_var(last_jiffy) = get_tb();
+ __get_cpu_var(last_jiffy) = get_tb_or_rtc();
snapshot_purr();
}
write_seqlock(&xtime_lock);
tb_next_jiffy = tb_last_jiffy + tb_ticks_per_jiffy;
+ if (__USE_RTC() && tb_next_jiffy >= 1000000000)
+ tb_next_jiffy -= 1000000000;
if (per_cpu(last_jiffy, cpu) >= tb_next_jiffy) {
tb_last_jiffy = tb_next_jiffy;
do_timer(1);
tb_to_ns_scale = scale;
tb_to_ns_shift = shift;
/* Save the current timebase to pretty up CONFIG_PRINTK_TIME */
- boot_tb = get_tb();
+ boot_tb = get_tb_or_rtc();
tm = get_boot_time();
CPU_FTR_USE_TB, 0,
"__kernel_gettimeofday", NULL
},
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_clock_gettime", NULL
+ },
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_clock_getres", NULL
+ },
+ {
+ CPU_FTR_USE_TB, 0,
+ "__kernel_get_tbfreq", NULL
+ },
};
/*
list_for_each_entry(spu, &cbe_spu_info[node].spus, cbe_list) {
struct spu_context *tmp = spu->ctx;
- if (tmp->prio > ctx->prio &&
+ if (tmp && tmp->prio > ctx->prio &&
(!victim || tmp->prio > victim->prio))
victim = spu->ctx;
}
mutex_lock(&cbe_spu_info[node].list_mutex);
cbe_spu_info[node].nr_active--;
+ spu_unbind_context(spu, victim);
mutex_unlock(&cbe_spu_info[node].list_mutex);
- spu_unbind_context(spu, victim);
victim->stats.invol_ctx_switch++;
spu->stats.invol_ctx_switch++;
mutex_unlock(&victim->state_mutex);
extern void copy_sc(union uml_pt_regs *regs, void *from);
-unsigned long to_irq_stack(int sig, unsigned long *mask_out);
+extern unsigned long to_irq_stack(unsigned long *mask_out);
unsigned long from_irq_stack(int nested);
#endif
static unsigned long pending_mask;
-unsigned long to_irq_stack(int sig, unsigned long *mask_out)
+unsigned long to_irq_stack(unsigned long *mask_out)
{
struct thread_info *ti;
unsigned long mask, old;
int nested;
- mask = xchg(&pending_mask, 1 << sig);
+ mask = xchg(&pending_mask, *mask_out);
if(mask != 0){
/* If any interrupts come in at this point, we want to
* make sure that their bits aren't lost by our
* and pending_mask contains a bit for each interrupt
* that came in.
*/
- old = 1 << sig;
+ old = *mask_out;
do {
old |= mask;
mask = xchg(&pending_mask, old);
task = cpu_tasks[ti->cpu].task;
tti = task_thread_info(task);
+
*ti = *tti;
ti->real_thread = tti;
task->stack = ti;
}
if(S_ISBLK(buf.ust_mode)){
- int fd, blocks;
+ int fd;
+ long blocks;
fd = os_open_file(file, of_read(OPENFLAGS()), 0);
if(fd < 0){
void handle_signal(int sig, struct sigcontext *sc)
{
- unsigned long pending = 0;
+ unsigned long pending = 1UL << sig;
do {
int nested, bail;
* have to return, and the upper handler will deal
* with this interrupt.
*/
- bail = to_irq_stack(sig, &pending);
+ bail = to_irq_stack(&pending);
if(bail)
return;
bool
default y
-config QUICKLIST
- bool
- default y
-
-config NR_QUICK
- int
- default 2
-
config ISA
bool
movq %rax,R8(%rsp)
.endm
+ .macro LOAD_ARGS32 offset
+ movl \offset(%rsp),%r11d
+ movl \offset+8(%rsp),%r10d
+ movl \offset+16(%rsp),%r9d
+ movl \offset+24(%rsp),%r8d
+ movl \offset+40(%rsp),%ecx
+ movl \offset+48(%rsp),%edx
+ movl \offset+56(%rsp),%esi
+ movl \offset+64(%rsp),%edi
+ movl \offset+72(%rsp),%eax
+ .endm
+
.macro CFI_STARTPROC32 simple
CFI_STARTPROC \simple
CFI_UNDEFINED r8
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
movl %ebp, %ebp
/* no need to do an access_ok check here because rbp has been
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
movl RSP-ARGOFFSET(%rsp), %r8d
/* no need to do an access_ok check here because r8 has been
movq $-ENOSYS,RAX(%rsp) /* really needed? */
movq %rsp,%rdi /* &pt_regs -> arg1 */
call syscall_trace_enter
- LOAD_ARGS ARGOFFSET /* reload args from stack in case ptrace changed it */
+ LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */
RESTORE_REST
jmp ia32_do_syscall
END(ia32_syscall)
testl $2, realmode_flags - wakeup_code
jz 1f
mov video_mode - wakeup_code, %ax
- call mode_seta
+ call mode_set
1:
movw $0xb800, %ax
#define VIDEO_FIRST_V7 0x0900
# Setting of user mode (AX=mode ID) => CF=success
+
+# For now, we only handle VESA modes (0x0200..0x03ff). To handle other
+# modes, we should probably compile in the video code from the boot
+# directory.
.code16
-mode_seta:
+mode_set:
movw %ax, %bx
-#if 0
- cmpb $0xff, %ah
- jz setalias
-
- testb $VIDEO_RECALC>>8, %ah
- jnz _setrec
-
- cmpb $VIDEO_FIRST_RESOLUTION>>8, %ah
- jnc setres
-
- cmpb $VIDEO_FIRST_SPECIAL>>8, %ah
- jz setspc
-
- cmpb $VIDEO_FIRST_V7>>8, %ah
- jz setv7
-#endif
-
- cmpb $VIDEO_FIRST_VESA>>8, %ah
- jnc check_vesaa
-#if 0
- orb %ah, %ah
- jz setmenu
-#endif
-
- decb %ah
-# jz setbios Add bios modes later
+ subb $VIDEO_FIRST_VESA>>8, %bh
+ cmpb $2, %bh
+ jb check_vesa
-setbada: clc
+setbad:
+ clc
ret
-check_vesaa:
- subb $VIDEO_FIRST_VESA>>8, %bh
+check_vesa:
orw $0x4000, %bx # Use linear frame buffer
movw $0x4f02, %ax # VESA BIOS mode set call
int $0x10
cmpw $0x004f, %ax # AL=4f if implemented
- jnz _setbada # AH=0 if OK
+ jnz setbad # AH=0 if OK
stc
ret
-_setbada: jmp setbada
-
wakeup_stack_begin: # Stack grows down
.org 0xff0
if (__get_cpu_var(cpu_idle_state))
__get_cpu_var(cpu_idle_state) = 0;
- check_pgt_cache();
rmb();
idle = pm_idle;
if (!idle)
{
unsigned long tmp;
- /* Some code in the 64bit emulation may not be 64bit clean.
- Don't take any chances. */
- if (test_tsk_thread_flag(child, TIF_IA32))
- value &= 0xffffffff;
switch (regno) {
case offsetof(struct user_regs_struct,fs):
if (value && (value & 3) != 3)
}
if (!cpus_empty(cpu_mask))
flush_tlb_others(cpu_mask, mm, FLUSH_ALL);
- check_pgt_cache();
+
preempt_enable();
}
EXPORT_SYMBOL(flush_tlb_mm);
if (unlikely(in_atomic() || !mm))
goto bad_area_nosemaphore;
+ /*
+ * User-mode registers count as a user access even for any
+ * potential system fault or CPU buglet.
+ */
+ if (user_mode_vm(regs))
+ error_code |= PF_USER;
+
again:
/* When running in the kernel we expect faults to occur only to
* addresses in user space. All other faults represent errors in the
/* ATI */
{ PCI_VDEVICE(ATI, 0x4380), board_ahci_sb600 }, /* ATI SB600 */
- { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb600 }, /* ATI SB700 IDE */
- { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb600 }, /* ATI SB700 AHCI */
- { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb600 }, /* ATI SB700 nraid5 */
- { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb600 }, /* ATI SB700 raid5 */
+ { PCI_VDEVICE(ATI, 0x4390), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4391), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4392), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4393), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4394), board_ahci_sb600 }, /* ATI SB700/800 */
+ { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb600 }, /* ATI SB700/800 */
/* VIA */
{ PCI_VDEVICE(VIA, 0x3349), board_ahci_vt8251 }, /* VIA VT8251 */
{ "Maxtor 6L250S0", "BANC1G10", ATA_HORKAGE_NONCQ },
{ "Maxtor 6B200M0", "BANC1BM0", ATA_HORKAGE_NONCQ },
{ "Maxtor 6B200M0", "BANC1B10", ATA_HORKAGE_NONCQ },
+ { "Maxtor 7B250S0", "BANC1B70", ATA_HORKAGE_NONCQ, },
+ { "Maxtor 7B300S0", "BANC1B70", ATA_HORKAGE_NONCQ },
+ { "Maxtor 7V300F0", "VA111630", ATA_HORKAGE_NONCQ },
{ "HITACHI HDS7250SASUN500G 0621KTAWSD", "K2AOAJ0AHITACHI",
ATA_HORKAGE_NONCQ },
/* NCQ hard hangs device under heavier load, needs hard power cycle */
{ "WDC WD740ADFD-00NLR1", NULL, ATA_HORKAGE_NONCQ, },
{ "FUJITSU MHV2080BH", "00840028", ATA_HORKAGE_NONCQ, },
{ "ST9160821AS", "3.CLF", ATA_HORKAGE_NONCQ, },
+ { "ST3160812AS", "3.AD", ATA_HORKAGE_NONCQ, },
{ "SAMSUNG HD401LJ", "ZZ100-15", ATA_HORKAGE_NONCQ, },
/* devices which puke on READ_NATIVE_MAX */
dmactl = ioread8(ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
iowrite8(dmactl | ATA_DMA_START, ap->ioaddr.bmdma_addr + ATA_DMA_CMD);
- /* Strictly, one may wish to issue a readb() here, to
+ /* Strictly, one may wish to issue an ioread8() here, to
* flush the mmio write. However, control also passes
* to the hardware at this point, and it will interrupt
* us when we are to resume control. So, in effect,
* is expected, so I think it is best to not add a readb()
* without first all the MMIO ATA cards/mobos.
* Or maybe I'm just being paranoid.
+ *
+ * FIXME: The posting of this write means I/O starts are
+ * unneccessarily delayed for MMIO
*/
}
goto out_subsys;
}
if (dev->parent) {
- error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
- "device");
- if (error)
- goto out_busid;
#ifdef CONFIG_SYSFS_DEPRECATED
{
- char * class_name = make_class_name(dev->class->name,
- &dev->kobj);
+ struct device *parent = dev->parent;
+ char *class_name;
+
+ /*
+ * In old sysfs stacked class devices had 'device'
+ * link pointing to real device instead of parent
+ */
+ while (parent->class && !parent->bus && parent->parent)
+ parent = parent->parent;
+
+ error = sysfs_create_link(&dev->kobj,
+ &parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
+
+ class_name = make_class_name(dev->class->name,
+ &dev->kobj);
if (class_name)
error = sysfs_create_link(&dev->parent->kobj,
&dev->kobj, class_name);
if (error)
goto out_device;
}
+#else
+ error = sysfs_create_link(&dev->kobj, &dev->parent->kobj,
+ "device");
+ if (error)
+ goto out_busid;
#endif
}
return 0;
#include <linux/genhd.h>
#include <linux/hdreg.h>
#include <linux/blkpg.h>
+#include <linux/dma-mapping.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/mm.h>
#define I830_GMCH_MEM_MASK 0x1
#define I830_GMCH_MEM_64M 0x1
#define I830_GMCH_MEM_128M 0
-#define I830_GMCH_GMS_MASK 0xF0
+#define I830_GMCH_GMS_MASK 0x70
#define I830_GMCH_GMS_DISABLED 0x00
#define I830_GMCH_GMS_LOCAL 0x10
#define I830_GMCH_GMS_STOLEN_512 0x20
#define INTEL_I830_ERRSTS 0x92
/* Intel 855GM/852GM registers */
+#define I855_GMCH_GMS_MASK 0xF0
#define I855_GMCH_GMS_STOLEN_0M 0x0
#define I855_GMCH_GMS_STOLEN_1M (0x1 << 4)
#define I855_GMCH_GMS_STOLEN_4M (0x2 << 4)
*/
if (IS_G33)
size = 0;
- switch (gmch_ctrl & I830_GMCH_GMS_MASK) {
+ switch (gmch_ctrl & I855_GMCH_GMS_MASK) {
case I855_GMCH_GMS_STOLEN_1M:
gtt_entries = MB(1) - KB(size);
break;
static struct pci_device_id ipmi_pci_devices[] = {
{ PCI_DEVICE(PCI_HP_VENDOR_ID, PCI_MMC_DEVICE_ID) },
- { PCI_DEVICE_CLASS(PCI_ERMC_CLASSCODE, PCI_ERMC_CLASSCODE_MASK) }
+ { PCI_DEVICE_CLASS(PCI_ERMC_CLASSCODE, PCI_ERMC_CLASSCODE_MASK) },
+ { 0, }
};
MODULE_DEVICE_TABLE(pci, ipmi_pci_devices);
/*
* Page types allocated by the device.
*/
-enum {
+enum mspec_page_type {
MSPEC_FETCHOP = 1,
MSPEC_CACHED,
MSPEC_UNCACHED
* One of these structures is allocated when an mspec region is mmaped. The
* structure is pointed to by the vma->vm_private_data field in the vma struct.
* This structure is used to record the addresses of the mspec pages.
+ * This structure is shared by all vma's that are split off from the
+ * original vma when split_vma()'s are done.
+ *
+ * The refcnt is incremented atomically because mm->mmap_sem does not
+ * protect in fork case where multiple tasks share the vma_data.
*/
struct vma_data {
atomic_t refcnt; /* Number of vmas sharing the data. */
- spinlock_t lock; /* Serialize access to the vma. */
+ spinlock_t lock; /* Serialize access to this structure. */
int count; /* Number of pages allocated. */
- int type; /* Type of pages allocated. */
+ enum mspec_page_type type; /* Type of pages allocated. */
+ int flags; /* See VMD_xxx below. */
+ unsigned long vm_start; /* Original (unsplit) base. */
+ unsigned long vm_end; /* Original (unsplit) end. */
unsigned long maddr[0]; /* Array of MSPEC addresses. */
};
+#define VMD_VMALLOCED 0x1 /* vmalloc'd rather than kmalloc'd */
+
/* used on shub2 to clear FOP cache in the HUB */
static unsigned long scratch_page[MAX_NUMNODES];
#define SH2_AMO_CACHE_ENTRIES 4
* mspec_open
*
* Called when a device mapping is created by a means other than mmap
- * (via fork, etc.). Increments the reference count on the underlying
- * mspec data so it is not freed prematurely.
+ * (via fork, munmap, etc.). Increments the reference count on the
+ * underlying mspec data so it is not freed prematurely.
*/
static void
mspec_open(struct vm_area_struct *vma)
mspec_close(struct vm_area_struct *vma)
{
struct vma_data *vdata;
- int i, pages, result, vdata_size;
+ int index, last_index, result;
+ unsigned long my_page;
vdata = vma->vm_private_data;
- if (!atomic_dec_and_test(&vdata->refcnt))
- return;
- pages = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
- vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
- for (i = 0; i < pages; i++) {
- if (vdata->maddr[i] == 0)
+ BUG_ON(vma->vm_start < vdata->vm_start || vma->vm_end > vdata->vm_end);
+
+ spin_lock(&vdata->lock);
+ index = (vma->vm_start - vdata->vm_start) >> PAGE_SHIFT;
+ last_index = (vma->vm_end - vdata->vm_start) >> PAGE_SHIFT;
+ for (; index < last_index; index++) {
+ if (vdata->maddr[index] == 0)
continue;
/*
* Clear the page before sticking it back
* into the pool.
*/
- result = mspec_zero_block(vdata->maddr[i], PAGE_SIZE);
+ my_page = vdata->maddr[index];
+ vdata->maddr[index] = 0;
+ spin_unlock(&vdata->lock);
+ result = mspec_zero_block(my_page, PAGE_SIZE);
if (!result)
- uncached_free_page(vdata->maddr[i]);
+ uncached_free_page(my_page);
else
printk(KERN_WARNING "mspec_close(): "
"failed to zero page %i\n",
result);
+ spin_lock(&vdata->lock);
}
+ spin_unlock(&vdata->lock);
- if (vdata_size <= PAGE_SIZE)
- kfree(vdata);
- else
+ if (!atomic_dec_and_test(&vdata->refcnt))
+ return;
+
+ if (vdata->flags & VMD_VMALLOCED)
vfree(vdata);
+ else
+ kfree(vdata);
}
int index;
struct vma_data *vdata = vma->vm_private_data;
- index = (address - vma->vm_start) >> PAGE_SHIFT;
+ BUG_ON(address < vdata->vm_start || address >= vdata->vm_end);
+ index = (address - vdata->vm_start) >> PAGE_SHIFT;
maddr = (volatile unsigned long) vdata->maddr[index];
if (maddr == 0) {
maddr = uncached_alloc_page(numa_node_id());
* underlying pages.
*/
static int
-mspec_mmap(struct file *file, struct vm_area_struct *vma, int type)
+mspec_mmap(struct file *file, struct vm_area_struct *vma,
+ enum mspec_page_type type)
{
struct vma_data *vdata;
- int pages, vdata_size;
+ int pages, vdata_size, flags = 0;
if (vma->vm_pgoff != 0)
return -EINVAL;
vdata_size = sizeof(struct vma_data) + pages * sizeof(long);
if (vdata_size <= PAGE_SIZE)
vdata = kmalloc(vdata_size, GFP_KERNEL);
- else
+ else {
vdata = vmalloc(vdata_size);
+ flags = VMD_VMALLOCED;
+ }
if (!vdata)
return -ENOMEM;
memset(vdata, 0, vdata_size);
+ vdata->vm_start = vma->vm_start;
+ vdata->vm_end = vma->vm_end;
+ vdata->flags = flags;
vdata->type = type;
spin_lock_init(&vdata->lock);
vdata->refcnt = ATOMIC_INIT(1);
*/
static const struct drive_list_entry hpa_list[] = {
{ "ST340823A", NULL },
+ { "ST320413A", NULL },
{ NULL, NULL }
};
{
struct hd_driveid *id = drive->id;
ide_hwif_t *hwif = HWIF(drive);
- pmac_ide_hwif_t* pmif = (pmac_ide_hwif_t *)hwif->hwif_data;
int enable = 1;
- int map;
drive->using_dma = 0;
if (drive->media == ide_floppy)
unregister_chrdev_region(IEEE1394_CORE_DEV, 256);
}
-fs_initcall(ieee1394_init); /* same as ohci1394 */
+module_init(ieee1394_init);
module_exit(ieee1394_cleanup);
/* Exported symbols */
return pci_register_driver(&ohci1394_pci_driver);
}
-/* Register before most other device drivers.
- * Useful for remote debugging via physical DMA, e.g. using firescope. */
-fs_initcall(ohci1394_init);
+module_init(ohci1394_init);
module_exit(ohci1394_cleanup);
depends on X86
default y
---help---
- Say Y here to get to see options for virtualization guest drivers.
+ Say Y here to get to see options for using your Linux host to run other
+ operating systems inside virtual machines (guests).
This option alone does not add any kernel code.
If you say N, all options in this submenu will be skipped and disabled.
{ USB_DEVICE(0x2304, 0x0301), .driver_info=PINNA_LINX_VD_IN_CAB_PAL },
{ USB_DEVICE(0x2304, 0x0419), .driver_info=PINNA_PCTV_BUNGEE_PAL_FM },
{ USB_DEVICE(0x2400, 0x4200), .driver_info=HPG_WINTV },
+ { }, /* terminate list */
};
MODULE_DEVICE_TABLE (usb, usbvision_table);
}
static struct pci_device_id cafe_nand_tbl[] = {
- { 0x11ab, 0x4100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MEMORY_FLASH << 8, 0xFFFF0 }
+ { 0x11ab, 0x4100, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_MEMORY_FLASH << 8, 0xFFFF0 },
+ { 0, }
};
MODULE_DEVICE_TABLE(pci, cafe_nand_tbl);
#define DRV_MODULE_NAME "bnx2"
#define PFX DRV_MODULE_NAME ": "
-#define DRV_MODULE_VERSION "1.6.4"
-#define DRV_MODULE_RELDATE "August 3, 2007"
+#define DRV_MODULE_VERSION "1.6.5"
+#define DRV_MODULE_RELDATE "September 20, 2007"
#define RUN_AT(x) (jiffies + (x))
} else if (CHIP_NUM(bp) == CHIP_NUM_5706 ||
CHIP_NUM(bp) == CHIP_NUM_5708)
bp->phy_flags |= PHY_CRC_FIX_FLAG;
- else if (CHIP_ID(bp) == CHIP_ID_5709_A0)
+ else if (CHIP_ID(bp) == CHIP_ID_5709_A0 ||
+ CHIP_ID(bp) == CHIP_ID_5709_A1)
bp->phy_flags |= PHY_DIS_EARLY_DAC_FLAG;
if ((CHIP_ID(bp) == CHIP_ID_5708_A0) ||
}
#define PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E 0x0008
+#define PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E_9 0x0009
static struct pci_device_id myri10ge_pci_tbl[] = {
{PCI_DEVICE(PCI_VENDOR_ID_MYRICOM, PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E)},
+ {PCI_DEVICE
+ (PCI_VENDOR_ID_MYRICOM, PCI_DEVICE_ID_MYRICOM_MYRI10GE_Z8E_9)},
{0},
};
return 0;
}
+EXPORT_SYMBOL(phy_mii_ioctl);
/**
* phy_start_aneg - start auto-negotiation for this PHY device
dev->hard_header(skb, dev, ETH_P_PPP_SES,
po->pppoe_pa.remote, NULL, data_len);
- if (dev_queue_xmit(skb) < 0)
- goto abort;
+ dev_queue_xmit(skb);
return 1;
u16 hdrflags;
u16 tunnel_id, session_id;
int length;
- struct udphdr *uh;
+ int offset;
tunnel = pppol2tp_sock_to_tunnel(sock);
if (tunnel == NULL)
goto error;
+ /* UDP always verifies the packet length. */
+ __skb_pull(skb, sizeof(struct udphdr));
+
/* Short packet? */
- if (skb->len < sizeof(struct udphdr)) {
+ if (!pskb_may_pull(skb, 12)) {
PRINTK(tunnel->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
"%s: recv short packet (len=%d)\n", tunnel->name, skb->len);
goto error;
}
/* Point to L2TP header */
- ptr = skb->data + sizeof(struct udphdr);
+ ptr = skb->data;
/* Get L2TP header flags */
hdrflags = ntohs(*(__be16*)ptr);
/* Trace packet contents, if enabled */
if (tunnel->debug & PPPOL2TP_MSG_DATA) {
+ length = min(16u, skb->len);
+ if (!pskb_may_pull(skb, length))
+ goto error;
+
printk(KERN_DEBUG "%s: recv: ", tunnel->name);
- for (length = 0; length < 16; length++)
- printk(" %02X", ptr[length]);
+ offset = 0;
+ do {
+ printk(" %02X", ptr[offset]);
+ } while (++offset < length);
+
printk("\n");
}
/* Get length of L2TP packet */
- uh = (struct udphdr *) skb_transport_header(skb);
- length = ntohs(uh->len) - sizeof(struct udphdr);
-
- /* Too short? */
- if (length < 12) {
- PRINTK(tunnel->debug, PPPOL2TP_MSG_DATA, KERN_INFO,
- "%s: recv short L2TP packet (len=%d)\n", tunnel->name, length);
- goto error;
- }
+ length = skb->len;
/* If type is control packet, it is handled by userspace. */
if (hdrflags & L2TP_HDRFLAG_T) {
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
goto discard;
}
"%s: recv data has no seq numbers when required. "
"Discarding\n", session->name);
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
goto discard;
}
}
/* If offset bit set, skip it. */
- if (hdrflags & L2TP_HDRFLAG_O)
- ptr += 2 + ntohs(*(__be16 *) ptr);
+ if (hdrflags & L2TP_HDRFLAG_O) {
+ offset = ntohs(*(__be16 *)ptr);
+ skb->transport_header += 2 + offset;
+ if (!pskb_may_pull(skb, skb_transport_offset(skb) + 2))
+ goto discard;
+ }
- skb_pull(skb, ptr - skb->data);
+ __skb_pull(skb, skb_transport_offset(skb));
/* Skip PPP header, if present. In testing, Microsoft L2TP clients
* don't send the PPP header (PPP header compression enabled), but
*/
if (PPPOL2TP_SKB_CB(skb)->ns != session->nr) {
session->stats.rx_seq_discards++;
- session->stats.rx_errors++;
PRINTK(session->debug, PPPOL2TP_MSG_SEQ, KERN_DEBUG,
"%s: oos pkt %hu len %d discarded, "
"waiting for %hu, reorder_q_len=%d\n",
return 0;
discard:
+ session->stats.rx_errors++;
kfree_skb(skb);
sock_put(session->sock);
int data_len = skb->len;
struct inet_sock *inet;
__wsum csum = 0;
- struct sk_buff *skb2 = NULL;
struct udphdr *uh;
unsigned int len;
*/
headroom = NET_SKB_PAD + sizeof(struct iphdr) +
sizeof(struct udphdr) + hdr_len + sizeof(ppph);
- if (skb_headroom(skb) < headroom) {
- skb2 = skb_realloc_headroom(skb, headroom);
- if (skb2 == NULL)
- goto abort;
- } else
- skb2 = skb;
-
- /* Check that the socket has room */
- if (atomic_read(&sk_tun->sk_wmem_alloc) < sk_tun->sk_sndbuf)
- skb_set_owner_w(skb2, sk_tun);
- else
- goto discard;
+ if (skb_cow_head(skb, headroom))
+ goto abort;
/* Setup PPP header */
- skb_push(skb2, sizeof(ppph));
- skb2->data[0] = ppph[0];
- skb2->data[1] = ppph[1];
+ __skb_push(skb, sizeof(ppph));
+ skb->data[0] = ppph[0];
+ skb->data[1] = ppph[1];
/* Setup L2TP header */
- skb_push(skb2, hdr_len);
- pppol2tp_build_l2tp_header(session, skb2->data);
+ pppol2tp_build_l2tp_header(session, __skb_push(skb, hdr_len));
/* Setup UDP header */
inet = inet_sk(sk_tun);
- skb_push(skb2, sizeof(struct udphdr));
- skb_reset_transport_header(skb2);
- uh = (struct udphdr *) skb2->data;
+ __skb_push(skb, sizeof(*uh));
+ skb_reset_transport_header(skb);
+ uh = udp_hdr(skb);
uh->source = inet->sport;
uh->dest = inet->dport;
uh->len = htons(sizeof(struct udphdr) + hdr_len + sizeof(ppph) + data_len);
uh->check = 0;
- /* Calculate UDP checksum if configured to do so */
+ /* *BROKEN* Calculate UDP checksum if configured to do so */
if (sk_tun->sk_no_check != UDP_CSUM_NOXMIT)
- csum = udp_csum_outgoing(sk_tun, skb2);
+ csum = udp_csum_outgoing(sk_tun, skb);
/* Debug */
if (session->send_seq)
if (session->debug & PPPOL2TP_MSG_DATA) {
int i;
- unsigned char *datap = skb2->data;
+ unsigned char *datap = skb->data;
printk(KERN_DEBUG "%s: xmit:", session->name);
for (i = 0; i < data_len; i++) {
printk("\n");
}
- memset(&(IPCB(skb2)->opt), 0, sizeof(IPCB(skb2)->opt));
- IPCB(skb2)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
- IPSKB_REROUTED);
- nf_reset(skb2);
+ memset(&(IPCB(skb)->opt), 0, sizeof(IPCB(skb)->opt));
+ IPCB(skb)->flags &= ~(IPSKB_XFRM_TUNNEL_SIZE | IPSKB_XFRM_TRANSFORMED |
+ IPSKB_REROUTED);
+ nf_reset(skb);
/* Get routing info from the tunnel socket */
- dst_release(skb2->dst);
- skb2->dst = sk_dst_get(sk_tun);
+ dst_release(skb->dst);
+ skb->dst = sk_dst_get(sk_tun);
/* Queue the packet to IP for output */
- len = skb2->len;
- rc = ip_queue_xmit(skb2, 1);
+ len = skb->len;
+ rc = ip_queue_xmit(skb, 1);
/* Update stats */
if (rc >= 0) {
session->stats.tx_errors++;
}
- /* Free the original skb */
- kfree_skb(skb);
-
return 1;
-discard:
- /* Free the new skb. Caller will free original skb. */
- if (skb2 != skb)
- kfree_skb(skb2);
abort:
- return 0;
+ /* Free the original skb */
+ kfree_skb(skb);
+ return 1;
}
/*****************************************************************************
goto err;
}
+ sk = sock->sk;
+
/* Quick sanity checks */
- err = -ESOCKTNOSUPPORT;
- if (sock->type != SOCK_DGRAM) {
+ err = -EPROTONOSUPPORT;
+ if (sk->sk_protocol != IPPROTO_UDP) {
PRINTK(-1, PPPOL2TP_MSG_CONTROL, KERN_ERR,
- "tunl %hu: fd %d wrong type, got %d, expected %d\n",
- tunnel_id, fd, sock->type, SOCK_DGRAM);
+ "tunl %hu: fd %d wrong protocol, got %d, expected %d\n",
+ tunnel_id, fd, sk->sk_protocol, IPPROTO_UDP);
goto err;
}
err = -EAFNOSUPPORT;
}
err = -ENOTCONN;
- sk = sock->sk;
/* Check if this socket has already been prepped */
tunnel = (struct pppol2tp_tunnel *)sk->sk_user_data;
#include "sky2.h"
#define DRV_NAME "sky2"
-#define DRV_VERSION "1.17"
+#define DRV_VERSION "1.18"
#define PFX DRV_NAME " "
/*
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4351) }, /* 88E8036 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4352) }, /* 88E8038 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4353) }, /* 88E8039 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4354) }, /* 88E8040 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4356) }, /* 88EC033 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x435A) }, /* 88E8048 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4360) }, /* 88E8052 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4361) }, /* 88E8050 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4362) }, /* 88E8053 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4363) }, /* 88E8055 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4364) }, /* 88E8056 */
+ { PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4365) }, /* 88E8070 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4366) }, /* 88EC036 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4367) }, /* 88EC032 */
{ PCI_DEVICE(PCI_VENDOR_ID_MARVELL, 0x4368) }, /* 88EC034 */
"Extreme", /* 0xb5 */
"EC", /* 0xb6 */
"FE", /* 0xb7 */
+ "FE+", /* 0xb8 */
};
static void sky2_set_multicast(struct net_device *dev);
else
sky2_write8(hw, B2_Y2_CLK_GATE, 0);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
- hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_ADV_POWER_CTL) {
u32 reg;
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
struct sky2_port *sky2 = netdev_priv(hw->dev[port]);
u16 ctrl, ct1000, adv, pg, ledctrl, ledover, reg;
- if (sky2->autoneg == AUTONEG_ENABLE
- && !(hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX)) {
+ if (sky2->autoneg == AUTONEG_ENABLE &&
+ !(hw->flags & SKY2_HW_NEWER_PHY)) {
u16 ectrl = gm_phy_read(hw, port, PHY_MARV_EXT_CTRL);
ectrl &= ~(PHY_M_EC_M_DSC_MSK | PHY_M_EC_S_DSC_MSK |
ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
if (sky2_is_copper(hw)) {
- if (hw->chip_id == CHIP_ID_YUKON_FE) {
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
/* enable automatic crossover */
ctrl |= PHY_M_PC_MDI_XMODE(PHY_M_PC_ENA_AUTO) >> 1;
} else {
/* downshift on PHY 88E1112 and 88E1149 is changed */
if (sky2->autoneg == AUTONEG_ENABLE
- && (hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX)) {
+ && (hw->flags & SKY2_HW_NEWER_PHY)) {
/* set downshift counter to 3x and enable downshift */
ctrl &= ~PHY_M_PC_DSC_MSK;
ctrl |= PHY_M_PC_DSC(2) | PHY_M_PC_DOWN_S_ENA;
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
/* special setup for PHY 88E1112 Fiber */
- if (hw->chip_id == CHIP_ID_YUKON_XL && !sky2_is_copper(hw)) {
+ if (hw->chip_id == CHIP_ID_YUKON_XL && (hw->flags & SKY2_HW_FIBRE_PHY)) {
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
/* Fiber: select 1000BASE-X only mode MAC Specific Ctrl Reg. */
gma_write16(hw, port, GM_GP_CTRL, reg);
- if (hw->chip_id != CHIP_ID_YUKON_FE)
+ if (hw->flags & SKY2_HW_GIGABIT)
gm_phy_write(hw, port, PHY_MARV_1000T_CTRL, ct1000);
gm_phy_write(hw, port, PHY_MARV_AUNE_ADV, adv);
gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
break;
+ case CHIP_ID_YUKON_FE_P:
+ /* Enable Link Partner Next Page */
+ ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL);
+ ctrl |= PHY_M_PC_ENA_LIP_NP;
+
+ /* disable Energy Detect and enable scrambler */
+ ctrl &= ~(PHY_M_PC_ENA_ENE_DT | PHY_M_PC_DIS_SCRAMB);
+ gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl);
+
+ /* set LED2 -> ACT, LED1 -> LINK, LED0 -> SPEED */
+ ctrl = PHY_M_FELP_LED2_CTRL(LED_PAR_CTRL_ACT_BL) |
+ PHY_M_FELP_LED1_CTRL(LED_PAR_CTRL_LINK) |
+ PHY_M_FELP_LED0_CTRL(LED_PAR_CTRL_SPEED);
+
+ gm_phy_write(hw, port, PHY_MARV_FE_LED_PAR, ctrl);
+ break;
+
case CHIP_ID_YUKON_XL:
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
/* set page register to 0 */
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0);
+ } else if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0) {
+ /* apply workaround for integrated resistors calibration */
+ gm_phy_write(hw, port, PHY_MARV_PAGE_ADDR, 17);
+ gm_phy_write(hw, port, PHY_MARV_PAGE_DATA, 0x3f60);
} else if (hw->chip_id != CHIP_ID_YUKON_EX) {
+ /* no effect on Yukon-XL */
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
static void sky2_set_tx_stfwd(struct sky2_hw *hw, unsigned port)
{
- if (hw->chip_id == CHIP_ID_YUKON_EX && hw->chip_rev != CHIP_REV_YU_EX_A0) {
+ struct net_device *dev = hw->dev[port];
+
+ if (dev->mtu <= ETH_DATA_LEN)
sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_STFW_ENA |
- (hw->dev[port]->mtu > ETH_DATA_LEN) ? TX_JUMBO_ENA : TX_JUMBO_DIS);
- } else {
- if (hw->dev[port]->mtu > ETH_DATA_LEN) {
- /* set Tx GMAC FIFO Almost Empty Threshold */
- sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
- (ECU_JUMBO_WM << 16) | ECU_AE_THR);
+ TX_JUMBO_DIS | TX_STFW_ENA);
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_ENA | TX_STFW_DIS);
+ else if (hw->chip_id != CHIP_ID_YUKON_EC_U)
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_STFW_ENA | TX_JUMBO_ENA);
+ else {
+ /* set Tx GMAC FIFO Almost Empty Threshold */
+ sky2_write32(hw, SK_REG(port, TX_GMF_AE_THR),
+ (ECU_JUMBO_WM << 16) | ECU_AE_THR);
- /* Can't do offload because of lack of store/forward */
- hw->dev[port]->features &= ~(NETIF_F_TSO | NETIF_F_SG
- | NETIF_F_ALL_CSUM);
- } else
- sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
- TX_JUMBO_DIS | TX_STFW_ENA);
+ sky2_write32(hw, SK_REG(port, TX_GMF_CTRL_T),
+ TX_JUMBO_ENA | TX_STFW_DIS);
+
+ /* Can't do offload because of lack of store/forward */
+ dev->features &= ~(NETIF_F_TSO | NETIF_F_SG | NETIF_F_ALL_CSUM);
}
}
/* Configure Rx MAC FIFO */
sky2_write8(hw, SK_REG(port, RX_GMF_CTRL_T), GMF_RST_CLR);
rx_reg = GMF_OPER_ON | GMF_RX_F_FL_ON;
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
rx_reg |= GMF_RX_OVER_ON;
sky2_write32(hw, SK_REG(port, RX_GMF_CTRL_T), rx_reg);
sky2_write16(hw, SK_REG(port, RX_GMF_FL_MSK), GMR_FS_ANY_ERR);
/* Set threshold to 0xa (64 bytes) + 1 to workaround pause bug */
- sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), RX_GMF_FL_THR_DEF+1);
+ reg = RX_GMF_FL_THR_DEF + 1;
+ /* Another magic mystery workaround from sk98lin */
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ reg = 0x178;
+ sky2_write16(hw, SK_REG(port, RX_GMF_FL_THR), reg);
/* Configure Tx MAC FIFO */
sky2_write8(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_RST_CLR);
sky2_write16(hw, SK_REG(port, TX_GMF_CTRL_T), GMF_OPER_ON);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (!(hw->flags & SKY2_HW_RAMBUFFER)) {
sky2_write8(hw, SK_REG(port, RX_GMF_LP_THR), 768/8);
sky2_write8(hw, SK_REG(port, RX_GMF_UP_THR), 1024/8);
*/
static void rx_set_checksum(struct sky2_port *sky2)
{
- struct sky2_rx_le *le;
+ struct sky2_rx_le *le = sky2_next_rx(sky2);
- if (sky2->hw->chip_id != CHIP_ID_YUKON_EX) {
- le = sky2_next_rx(sky2);
- le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
- le->ctrl = 0;
- le->opcode = OP_TCPSTART | HW_OWNER;
-
- sky2_write32(sky2->hw,
- Q_ADDR(rxqaddr[sky2->port], Q_CSR),
- sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
- }
+ le->addr = cpu_to_le32((ETH_HLEN << 16) | ETH_HLEN);
+ le->ctrl = 0;
+ le->opcode = OP_TCPSTART | HW_OWNER;
+ sky2_write32(sky2->hw,
+ Q_ADDR(rxqaddr[sky2->port], Q_CSR),
+ sky2->rx_csum ? BMU_ENA_RX_CHKSUM : BMU_DIS_RX_CHKSUM);
}
/*
sky2_prefetch_init(hw, rxq, sky2->rx_le_map, RX_LE_SIZE - 1);
- rx_set_checksum(sky2);
+ if (!(hw->flags & SKY2_HW_NEW_LE))
+ rx_set_checksum(sky2);
/* Space needed for frame data + headers rounded up */
size = roundup(sky2->netdev->mtu + ETH_HLEN + VLAN_HLEN, 8);
struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw;
unsigned port = sky2->port;
- u32 ramsize, imask;
+ u32 imask;
int cap, err = -ENOMEM;
struct net_device *otherdev = hw->dev[sky2->port^1];
sky2_mac_init(hw, port);
- /* Register is number of 4K blocks on internal RAM buffer. */
- ramsize = sky2_read8(hw, B2_E_0) * 4;
- printk(KERN_INFO PFX "%s: ram buffer %dK\n", dev->name, ramsize);
-
- if (ramsize > 0) {
+ if (hw->flags & SKY2_HW_RAMBUFFER) {
+ /* Register is number of 4K blocks on internal RAM buffer. */
+ u32 ramsize = sky2_read8(hw, B2_E_0) * 4;
u32 rxspace;
+ printk(KERN_DEBUG PFX "%s: ram buffer %dK\n", dev->name, ramsize);
+
if (ramsize < 16)
rxspace = ramsize / 2;
else
/* Check for TCP Segmentation Offload */
mss = skb_shinfo(skb)->gso_size;
if (mss != 0) {
- if (hw->chip_id != CHIP_ID_YUKON_EX)
+
+ if (!(hw->flags & SKY2_HW_NEW_LE))
mss += ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb);
if (mss != sky2->tx_last_mss) {
le = get_tx_le(sky2);
le->addr = cpu_to_le32(mss);
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+
+ if (hw->flags & SKY2_HW_NEW_LE)
le->opcode = OP_MSS | HW_OWNER;
else
le->opcode = OP_LRGLEN | HW_OWNER;
/* Handle TCP checksum offload */
if (skb->ip_summed == CHECKSUM_PARTIAL) {
/* On Yukon EX (some versions) encoding change. */
- if (hw->chip_id == CHIP_ID_YUKON_EX
- && hw->chip_rev != CHIP_REV_YU_EX_B0)
+ if (hw->flags & SKY2_HW_AUTO_TX_SUM)
ctrl |= CALSUM; /* auto checksum */
else {
const unsigned offset = skb_transport_offset(skb);
if (netif_msg_ifdown(sky2))
printk(KERN_INFO PFX "%s: disabling interface\n", dev->name);
- if (netif_carrier_ok(dev) && --hw->active == 0)
- del_timer(&hw->watchdog_timer);
-
/* Stop more packets from being queued */
netif_stop_queue(dev);
static u16 sky2_phy_speed(const struct sky2_hw *hw, u16 aux)
{
- if (!sky2_is_copper(hw))
+ if (hw->flags & SKY2_HW_FIBRE_PHY)
return SPEED_1000;
- if (hw->chip_id == CHIP_ID_YUKON_FE)
- return (aux & PHY_M_PS_SPEED_100) ? SPEED_100 : SPEED_10;
+ if (!(hw->flags & SKY2_HW_GIGABIT)) {
+ if (aux & PHY_M_PS_SPEED_100)
+ return SPEED_100;
+ else
+ return SPEED_10;
+ }
switch (aux & PHY_M_PS_SPEED_MSK) {
case PHY_M_PS_SPEED_1000:
netif_carrier_on(sky2->netdev);
- if (hw->active++ == 0)
- mod_timer(&hw->watchdog_timer, jiffies + 1);
-
+ mod_timer(&hw->watchdog_timer, jiffies + 1);
/* Turn on link LED */
sky2_write8(hw, SK_REG(port, LNK_LED_REG),
LINKLED_ON | LINKLED_BLINK_OFF | LINKLED_LINKSYNC_OFF);
- if (hw->chip_id == CHIP_ID_YUKON_XL
- || hw->chip_id == CHIP_ID_YUKON_EC_U
- || hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_NEWER_PHY) {
u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
u16 led = PHY_M_LEDC_LOS_CTRL(1); /* link active */
netif_carrier_off(sky2->netdev);
- /* Stop watchdog if both ports are not active */
- if (--hw->active == 0)
- del_timer(&hw->watchdog_timer);
-
-
/* Turn on link LED */
sky2_write8(hw, SK_REG(port, LNK_LED_REG), LINKLED_OFF);
/* Since the pause result bits seem to in different positions on
* different chips. look at registers.
*/
- if (!sky2_is_copper(hw)) {
+ if (hw->flags & SKY2_HW_FIBRE_PHY) {
/* Shift for bits in fiber PHY */
advert &= ~(ADVERTISE_PAUSE_CAP|ADVERTISE_PAUSE_ASYM);
lpa &= ~(LPA_PAUSE_CAP|LPA_PAUSE_ASYM);
if (new_mtu < ETH_ZLEN || new_mtu > ETH_JUMBO_MTU)
return -EINVAL;
- if (new_mtu > ETH_DATA_LEN && hw->chip_id == CHIP_ID_YUKON_FE)
+ if (new_mtu > ETH_DATA_LEN &&
+ (hw->chip_id == CHIP_ID_YUKON_FE ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P))
return -EINVAL;
if (!netif_running(dev)) {
synchronize_irq(hw->pdev->irq);
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
+ if (!(hw->flags & SKY2_HW_RAMBUFFER))
sky2_set_tx_stfwd(hw, port);
ctl = gma_read16(hw, port, GM_GP_CTRL);
struct sky2_port *sky2 = netdev_priv(dev);
struct rx_ring_info *re = sky2->rx_ring + sky2->rx_next;
struct sk_buff *skb = NULL;
+ u16 count = (status & GMR_FS_LEN) >> 16;
+
+#ifdef SKY2_VLAN_TAG_USED
+ /* Account for vlan tag */
+ if (sky2->vlgrp && (status & GMR_FS_VLAN))
+ count -= VLAN_HLEN;
+#endif
if (unlikely(netif_msg_rx_status(sky2)))
printk(KERN_DEBUG PFX "%s: rx slot %u status 0x%x len %d\n",
if (!(status & GMR_FS_RX_OK))
goto resubmit;
- if (status >> 16 != length)
+ /* if length reported by DMA does not match PHY, packet was truncated */
+ if (length != count)
goto len_mismatch;
if (length < copybreak)
/* Truncation of overlength packets
causes PHY length to not match MAC length */
++sky2->net_stats.rx_length_errors;
+ if (netif_msg_rx_err(sky2) && net_ratelimit())
+ pr_info(PFX "%s: rx length mismatch: length %d status %#x\n",
+ dev->name, length, status);
+ goto resubmit;
error:
++sky2->net_stats.rx_errors;
}
/* This chip reports checksum status differently */
- if (hw->chip_id == CHIP_ID_YUKON_EX) {
+ if (hw->flags & SKY2_HW_NEW_LE) {
if (sky2->rx_csum &&
(le->css & (CSS_ISIPV4 | CSS_ISIPV6)) &&
(le->css & CSS_TCPUDPCSOK))
if (!sky2->rx_csum)
break;
- if (hw->chip_id == CHIP_ID_YUKON_EX)
+ /* If this happens then driver assuming wrong format */
+ if (unlikely(hw->flags & SKY2_HW_NEW_LE)) {
+ if (net_ratelimit())
+ printk(KERN_NOTICE "%s: unexpected"
+ " checksum status\n",
+ dev->name);
break;
+ }
/* Both checksum counters are programmed to start at
* the same offset, so unless there is a problem they
sky2_write32(hw, Q_ADDR(q, Q_CSR), BMU_CLR_IRQ_CHK);
}
-/* Check for lost IRQ once a second */
+static int sky2_rx_hung(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ struct sky2_hw *hw = sky2->hw;
+ unsigned port = sky2->port;
+ unsigned rxq = rxqaddr[port];
+ u32 mac_rp = sky2_read32(hw, SK_REG(port, RX_GMF_RP));
+ u8 mac_lev = sky2_read8(hw, SK_REG(port, RX_GMF_RLEV));
+ u8 fifo_rp = sky2_read8(hw, Q_ADDR(rxq, Q_RP));
+ u8 fifo_lev = sky2_read8(hw, Q_ADDR(rxq, Q_RL));
+
+ /* If idle and MAC or PCI is stuck */
+ if (sky2->check.last == dev->last_rx &&
+ ((mac_rp == sky2->check.mac_rp &&
+ mac_lev != 0 && mac_lev >= sky2->check.mac_lev) ||
+ /* Check if the PCI RX hang */
+ (fifo_rp == sky2->check.fifo_rp &&
+ fifo_lev != 0 && fifo_lev >= sky2->check.fifo_lev))) {
+ printk(KERN_DEBUG PFX "%s: hung mac %d:%d fifo %d (%d:%d)\n",
+ dev->name, mac_lev, mac_rp, fifo_lev, fifo_rp,
+ sky2_read8(hw, Q_ADDR(rxq, Q_WP)));
+ return 1;
+ } else {
+ sky2->check.last = dev->last_rx;
+ sky2->check.mac_rp = mac_rp;
+ sky2->check.mac_lev = mac_lev;
+ sky2->check.fifo_rp = fifo_rp;
+ sky2->check.fifo_lev = fifo_lev;
+ return 0;
+ }
+}
+
static void sky2_watchdog(unsigned long arg)
{
struct sky2_hw *hw = (struct sky2_hw *) arg;
+ struct net_device *dev;
+ /* Check for lost IRQ once a second */
if (sky2_read32(hw, B0_ISRC)) {
- struct net_device *dev = hw->dev[0];
-
+ dev = hw->dev[0];
if (__netif_rx_schedule_prep(dev))
__netif_rx_schedule(dev);
+ } else {
+ int i, active = 0;
+
+ for (i = 0; i < hw->ports; i++) {
+ dev = hw->dev[i];
+ if (!netif_running(dev))
+ continue;
+ ++active;
+
+ /* For chips with Rx FIFO, check if stuck */
+ if ((hw->flags & SKY2_HW_RAMBUFFER) &&
+ sky2_rx_hung(dev)) {
+ pr_info(PFX "%s: receiver hang detected\n",
+ dev->name);
+ schedule_work(&hw->restart_work);
+ return;
+ }
+ }
+
+ if (active == 0)
+ return;
}
- if (hw->active > 0)
- mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
+ mod_timer(&hw->watchdog_timer, round_jiffies(jiffies + HZ));
}
/* Hardware/software error handling */
#endif
/* Chip internal frequency for clock calculations */
-static inline u32 sky2_mhz(const struct sky2_hw *hw)
+static u32 sky2_mhz(const struct sky2_hw *hw)
{
switch (hw->chip_id) {
case CHIP_ID_YUKON_EC:
case CHIP_ID_YUKON_EC_U:
case CHIP_ID_YUKON_EX:
- return 125; /* 125 Mhz */
+ return 125;
+
case CHIP_ID_YUKON_FE:
- return 100; /* 100 Mhz */
- default: /* YUKON_XL */
- return 156; /* 156 Mhz */
+ return 100;
+
+ case CHIP_ID_YUKON_FE_P:
+ return 50;
+
+ case CHIP_ID_YUKON_XL:
+ return 156;
+
+ default:
+ BUG();
}
}
sky2_write8(hw, B0_CTST, CS_RST_CLR);
hw->chip_id = sky2_read8(hw, B2_CHIP_ID);
- if (hw->chip_id < CHIP_ID_YUKON_XL || hw->chip_id > CHIP_ID_YUKON_FE) {
+ hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
+
+ switch(hw->chip_id) {
+ case CHIP_ID_YUKON_XL:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_RAMBUFFER;
+ break;
+
+ case CHIP_ID_YUKON_EC_U:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+
+ case CHIP_ID_YUKON_EX:
+ hw->flags = SKY2_HW_GIGABIT
+ | SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_ADV_POWER_CTL;
+
+ /* New transmit checksum */
+ if (hw->chip_rev != CHIP_REV_YU_EX_B0)
+ hw->flags |= SKY2_HW_AUTO_TX_SUM;
+ break;
+
+ case CHIP_ID_YUKON_EC:
+ /* This rev is really old, and requires untested workarounds */
+ if (hw->chip_rev == CHIP_REV_YU_EC_A1) {
+ dev_err(&hw->pdev->dev, "unsupported revision Yukon-EC rev A1\n");
+ return -EOPNOTSUPP;
+ }
+ hw->flags = SKY2_HW_GIGABIT | SKY2_HW_RAMBUFFER;
+ break;
+
+ case CHIP_ID_YUKON_FE:
+ hw->flags = SKY2_HW_RAMBUFFER;
+ break;
+
+ case CHIP_ID_YUKON_FE_P:
+ hw->flags = SKY2_HW_NEWER_PHY
+ | SKY2_HW_NEW_LE
+ | SKY2_HW_AUTO_TX_SUM
+ | SKY2_HW_ADV_POWER_CTL;
+ break;
+ default:
dev_err(&hw->pdev->dev, "unsupported chip type 0x%x\n",
hw->chip_id);
return -EOPNOTSUPP;
}
- hw->chip_rev = (sky2_read8(hw, B2_MAC_CFG) & CFG_CHIP_R_MSK) >> 4;
+ hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
+ if (hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P')
+ hw->flags |= SKY2_HW_FIBRE_PHY;
- /* This rev is really old, and requires untested workarounds */
- if (hw->chip_id == CHIP_ID_YUKON_EC && hw->chip_rev == CHIP_REV_YU_EC_A1) {
- dev_err(&hw->pdev->dev, "unsupported revision Yukon-%s (0x%x) rev %d\n",
- yukon2_name[hw->chip_id - CHIP_ID_YUKON_XL],
- hw->chip_id, hw->chip_rev);
- return -EOPNOTSUPP;
- }
- hw->pmd_type = sky2_read8(hw, B2_PMD_TYP);
hw->ports = 1;
t8 = sky2_read8(hw, B2_Y2_HW_RES);
if ((t8 & CFG_DUAL_MAC_MSK) == CFG_DUAL_MAC_MSK) {
sky2->wol = wol->wolopts;
- if (hw->chip_id == CHIP_ID_YUKON_EC_U || hw->chip_id == CHIP_ID_YUKON_EX)
+ if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
+ hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
sky2_write32(hw, B0_CTST, sky2->wol
? Y2_HW_WOL_ON : Y2_HW_WOL_OFF);
| SUPPORTED_100baseT_Full
| SUPPORTED_Autoneg | SUPPORTED_TP;
- if (hw->chip_id != CHIP_ID_YUKON_FE)
+ if (hw->flags & SKY2_HW_GIGABIT)
modes |= SUPPORTED_1000baseT_Half
| SUPPORTED_1000baseT_Full;
return modes;
ecmd->supported = sky2_supported_modes(hw);
ecmd->phy_address = PHY_ADDR_MARV;
if (sky2_is_copper(hw)) {
- ecmd->supported = SUPPORTED_10baseT_Half
- | SUPPORTED_10baseT_Full
- | SUPPORTED_100baseT_Half
- | SUPPORTED_100baseT_Full
- | SUPPORTED_1000baseT_Half
- | SUPPORTED_1000baseT_Full
- | SUPPORTED_Autoneg | SUPPORTED_TP;
ecmd->port = PORT_TP;
ecmd->speed = sky2->speed;
} else {
sky2->hw = hw;
sky2->msg_enable = netif_msg_init(debug, default_msg);
+ /* This chip has hardware problems that generates
+ * bogus PHY receive status so by default shut up the message.
+ */
+ if (hw->chip_id == CHIP_ID_YUKON_FE_P &&
+ hw->chip_rev == CHIP_REV_YU_FE2_A0)
+ sky2->msg_enable &= ~NETIF_MSG_RX_ERR;
+
/* Auto speed and flow control */
sky2->autoneg = AUTONEG_ENABLE;
sky2->flow_mode = FC_BOTH;
return IRQ_NONE;
if (status & Y2_IS_IRQ_SW) {
- hw->msi = 1;
+ hw->flags |= SKY2_HW_USE_MSI;
wake_up(&hw->msi_wait);
sky2_write8(hw, B0_CTST, CS_CL_SW_IRQ);
}
sky2_write8(hw, B0_CTST, CS_ST_SW_IRQ);
sky2_read8(hw, B0_CTST);
- wait_event_timeout(hw->msi_wait, hw->msi, HZ/10);
+ wait_event_timeout(hw->msi_wait, (hw->flags & SKY2_HW_USE_MSI), HZ/10);
- if (!hw->msi) {
+ if (!(hw->flags & SKY2_HW_USE_MSI)) {
/* MSI test failed, go back to INTx mode */
dev_info(&pdev->dev, "No interrupt generated using MSI, "
"switching to INTx mode.\n");
goto err_out_free_netdev;
}
- err = request_irq(pdev->irq, sky2_intr, hw->msi ? 0 : IRQF_SHARED,
+ err = request_irq(pdev->irq, sky2_intr,
+ (hw->flags & SKY2_HW_USE_MSI) ? 0 : IRQF_SHARED,
dev->name, hw);
if (err) {
dev_err(&pdev->dev, "cannot assign irq %d\n", pdev->irq);
return 0;
err_out_unregister:
- if (hw->msi)
+ if (hw->flags & SKY2_HW_USE_MSI)
pci_disable_msi(pdev);
unregister_netdev(dev);
err_out_free_netdev:
sky2_read8(hw, B0_CTST);
free_irq(pdev->irq, hw);
- if (hw->msi)
+ if (hw->flags & SKY2_HW_USE_MSI)
pci_disable_msi(pdev);
pci_free_consistent(pdev, STATUS_LE_BYTES, hw->st_le, hw->st_dma);
pci_release_regions(pdev);
pci_enable_wake(pdev, PCI_D0, 0);
/* Re-enable all clocks */
- if (hw->chip_id == CHIP_ID_YUKON_EX || hw->chip_id == CHIP_ID_YUKON_EC_U)
+ if (hw->chip_id == CHIP_ID_YUKON_EX ||
+ hw->chip_id == CHIP_ID_YUKON_EC_U ||
+ hw->chip_id == CHIP_ID_YUKON_FE_P)
sky2_pci_write32(hw, PCI_DEV_REG3, 0);
sky2_reset(hw);
CHIP_ID_YUKON_EX = 0xb5, /* Chip ID for YUKON-2 Extreme */
CHIP_ID_YUKON_EC = 0xb6, /* Chip ID for YUKON-2 EC */
CHIP_ID_YUKON_FE = 0xb7, /* Chip ID for YUKON-2 FE */
-
+ CHIP_ID_YUKON_FE_P = 0xb8, /* Chip ID for YUKON-2 FE+ */
+};
+enum yukon_ec_rev {
CHIP_REV_YU_EC_A1 = 0, /* Chip Rev. for Yukon-EC A1/A0 */
CHIP_REV_YU_EC_A2 = 1, /* Chip Rev. for Yukon-EC A2 */
CHIP_REV_YU_EC_A3 = 2, /* Chip Rev. for Yukon-EC A3 */
-
+};
+enum yukon_ec_u_rev {
CHIP_REV_YU_EC_U_A0 = 1,
CHIP_REV_YU_EC_U_A1 = 2,
CHIP_REV_YU_EC_U_B0 = 3,
-
+};
+enum yukon_fe_rev {
CHIP_REV_YU_FE_A1 = 1,
CHIP_REV_YU_FE_A2 = 2,
-
+};
+enum yukon_fe_p_rev {
+ CHIP_REV_YU_FE2_A0 = 0,
};
enum yukon_ex_rev {
CHIP_REV_YU_EX_A0 = 1,
/* Receive Frame Status Encoding */
enum {
- GMR_FS_LEN = 0xffff<<16, /* Bit 31..16: Rx Frame Length */
+ GMR_FS_LEN = 0x7fff<<16, /* Bit 30..16: Rx Frame Length */
GMR_FS_VLAN = 1<<13, /* VLAN Packet */
GMR_FS_JABBER = 1<<12, /* Jabber Packet */
GMR_FS_UN_SIZE = 1<<11, /* Undersize Packet */
GMF_RX_CTRL_DEF = GMF_OPER_ON | GMF_RX_F_FL_ON,
};
+/* TX_GMF_EA 32 bit Tx GMAC FIFO End Address */
+enum {
+ TX_DYN_WM_ENA = 3, /* Yukon-FE+ specific */
+};
/* TX_GMF_CTRL_T 32 bit Tx GMAC FIFO Control/Test */
enum {
u16 rx_tag;
struct vlan_group *vlgrp;
#endif
+ struct {
+ unsigned long last;
+ u32 mac_rp;
+ u8 mac_lev;
+ u8 fifo_rp;
+ u8 fifo_lev;
+ } check;
+
dma_addr_t rx_le_map;
dma_addr_t tx_le_map;
void __iomem *regs;
struct pci_dev *pdev;
struct net_device *dev[2];
+ unsigned long flags;
+#define SKY2_HW_USE_MSI 0x00000001
+#define SKY2_HW_FIBRE_PHY 0x00000002
+#define SKY2_HW_GIGABIT 0x00000004
+#define SKY2_HW_NEWER_PHY 0x00000008
+#define SKY2_HW_RAMBUFFER 0x00000010 /* chip has RAM FIFO */
+#define SKY2_HW_NEW_LE 0x00000020 /* new LSOv2 format */
+#define SKY2_HW_AUTO_TX_SUM 0x00000040 /* new IP decode for Tx */
+#define SKY2_HW_ADV_POWER_CTL 0x00000080 /* additional PHY power regs */
u8 chip_id;
u8 chip_rev;
u8 pmd_type;
u8 ports;
- u8 active;
struct sky2_status_le *st_le;
u32 st_idx;
struct timer_list watchdog_timer;
struct work_struct restart_work;
- int msi;
wait_queue_head_t msi_wait;
};
static inline int sky2_is_copper(const struct sky2_hw *hw)
{
- return !(hw->pmd_type == 'L' || hw->pmd_type == 'S' || hw->pmd_type == 'P');
+ return !(hw->flags & SKY2_HW_FIBRE_PHY);
}
/* Register accessor for memory mapped device */
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr;
- unsigned long baseaddr;
+ resource_size_t baseaddr;
unsigned long last_jiffies;
int irq;
unsigned int irqen;
void __iomem *ioaddr_rtc;
size_t size_nvram;
size_t size;
- unsigned long baseaddr;
+ resource_size_t baseaddr;
unsigned long last_jiffies;
};
unsigned char interrupt_mask1;/* ISR1 masking */
unsigned char pvr_dtr_bit; /* Which PVR bit is DTR */
unsigned char pvr_dsr_bit; /* Which PVR bit is DSR */
+ unsigned int gis_shift;
int type; /* SAB82532 version */
/* Setting configuration bits while the transmitter is active
struct tty_struct *tty;
union sab82532_irq_status status;
unsigned long flags;
+ unsigned char gis;
spin_lock_irqsave(&up->port.lock, flags);
status.stat = 0;
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISA0)
+ gis = readb(&up->regs->r.gis) >> up->gis_shift;
+ if (gis & 1)
status.sreg.isr0 = readb(&up->regs->r.isr0);
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISA1)
+ if (gis & 2)
status.sreg.isr1 = readb(&up->regs->r.isr1);
tty = NULL;
transmit_chars(up, &status);
}
- spin_unlock(&up->port.lock);
-
- if (tty)
- tty_flip_buffer_push(tty);
-
- up++;
-
- spin_lock(&up->port.lock);
-
- status.stat = 0;
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISB0)
- status.sreg.isr0 = readb(&up->regs->r.isr0);
- if (readb(&up->regs->r.gis) & SAB82532_GIS_ISB1)
- status.sreg.isr1 = readb(&up->regs->r.isr1);
-
- tty = NULL;
- if (status.stat) {
- if ((status.sreg.isr0 & (SAB82532_ISR0_TCD | SAB82532_ISR0_TIME |
- SAB82532_ISR0_RFO | SAB82532_ISR0_RPF)) ||
- (status.sreg.isr1 & SAB82532_ISR1_BRK))
-
- tty = receive_chars(up, &status);
- if ((status.sreg.isr0 & SAB82532_ISR0_CDSC) ||
- (status.sreg.isr1 & (SAB82532_ISR1_BRK | SAB82532_ISR1_CSC)))
- check_status(up, &status);
- if (status.sreg.isr1 & (SAB82532_ISR1_ALLS | SAB82532_ISR1_XPR))
- transmit_chars(up, &status);
- }
-
spin_unlock_irqrestore(&up->port.lock, flags);
if (tty)
struct uart_sunsab_port *up = (struct uart_sunsab_port *) port;
unsigned long flags;
unsigned char tmp;
+ int err = request_irq(up->port.irq, sunsab_interrupt,
+ IRQF_SHARED, "sab", up);
+ if (err)
+ return err;
spin_lock_irqsave(&up->port.lock, flags);
#endif
spin_unlock_irqrestore(&up->port.lock, flags);
+ free_irq(up->port.irq, up);
}
/*
if ((up->port.line & 0x1) == 0) {
up->pvr_dsr_bit = (1 << 0);
up->pvr_dtr_bit = (1 << 1);
+ up->gis_shift = 2;
} else {
up->pvr_dsr_bit = (1 << 3);
up->pvr_dtr_bit = (1 << 2);
+ up->gis_shift = 0;
}
up->cached_pvr = (1 << 1) | (1 << 2) | (1 << 4);
writeb(up->cached_pvr, &up->regs->w.pvr);
up->tec_timeout = SAB82532_MAX_TEC_TIMEOUT;
up->cec_timeout = SAB82532_MAX_CEC_TIMEOUT;
- if (!(up->port.line & 0x01)) {
- int err;
-
- err = request_irq(up->port.irq, sunsab_interrupt,
- IRQF_SHARED, "sab", up);
- if (err) {
- of_iounmap(&op->resource[0],
- up->port.membase,
- sizeof(union sab82532_async_regs));
- return err;
- }
- }
-
return 0;
}
0,
(inst * 2) + 0);
if (err)
- return err;
+ goto out;
err = sunsab_init_one(&up[1], op,
sizeof(union sab82532_async_regs),
(inst * 2) + 1);
- if (err) {
- of_iounmap(&op->resource[0],
- up[0].port.membase,
- sizeof(union sab82532_async_regs));
- free_irq(up[0].port.irq, &up[0]);
- return err;
- }
+ if (err)
+ goto out1;
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[0].port.line);
- uart_add_one_port(&sunsab_reg, &up[0].port);
sunserial_console_match(SUNSAB_CONSOLE(), op->node,
&sunsab_reg, up[1].port.line);
- uart_add_one_port(&sunsab_reg, &up[1].port);
+
+ err = uart_add_one_port(&sunsab_reg, &up[0].port);
+ if (err)
+ goto out2;
+
+ err = uart_add_one_port(&sunsab_reg, &up[1].port);
+ if (err)
+ goto out3;
dev_set_drvdata(&op->dev, &up[0]);
inst++;
return 0;
-}
-
-static void __devexit sab_remove_one(struct uart_sunsab_port *up)
-{
- struct of_device *op = to_of_device(up->port.dev);
- uart_remove_one_port(&sunsab_reg, &up->port);
- if (!(up->port.line & 1))
- free_irq(up->port.irq, up);
+out3:
+ uart_remove_one_port(&sunsab_reg, &up[0].port);
+out2:
of_iounmap(&op->resource[0],
- up->port.membase,
+ up[1].port.membase,
sizeof(union sab82532_async_regs));
+out1:
+ of_iounmap(&op->resource[0],
+ up[0].port.membase,
+ sizeof(union sab82532_async_regs));
+out:
+ return err;
}
static int __devexit sab_remove(struct of_device *op)
{
struct uart_sunsab_port *up = dev_get_drvdata(&op->dev);
- sab_remove_one(&up[0]);
- sab_remove_one(&up[1]);
+ uart_remove_one_port(&sunsab_reg, &up[1].port);
+ uart_remove_one_port(&sunsab_reg, &up[0].port);
+ of_iounmap(&op->resource[0],
+ up[1].port.membase,
+ sizeof(union sab82532_async_regs));
+ of_iounmap(&op->resource[0],
+ up[0].port.membase,
+ sizeof(union sab82532_async_regs));
dev_set_drvdata(&op->dev, NULL);
sunsab_reg.minor = sunserial_current_minor;
sunsab_reg.nr = num_channels;
+ sunsab_reg.cons = SUNSAB_CONSOLE();
err = uart_register_driver(&sunsab_reg);
if (err) {
/* turn off PLL */
tmp = INREG(dpll_reg);
- dpll_reg &= ~DPLL_VCO_ENABLE;
+ tmp &= ~DPLL_VCO_ENABLE;
OUTREG(dpll_reg, tmp);
/* Set PLL parameters */
#include <linux/tsacct_kern.h>
#include <linux/cn_proc.h>
#include <linux/audit.h>
-#include <linux/signalfd.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
* and we can just re-use it all.
*/
if (atomic_read(&oldsighand->count) <= 1) {
- signalfd_detach(tsk);
exit_itimers(sig);
return 0;
}
sig->flags = 0;
no_thread_group:
- signalfd_detach(tsk);
exit_itimers(sig);
if (leader)
release_task(leader);
struct dx_map_entry
{
u32 hash;
- u32 offs;
+ u16 offs;
+ u16 size;
};
#ifdef CONFIG_EXT3_INDEX
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
- assert(dx_get_limit(entries) == dx_root_limit(dir,
- root->info.info_length));
+
+ if (dx_get_limit(entries) != dx_root_limit(dir,
+ root->info.info_length)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != root limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
- assert (count && count <= dx_get_limit(entries));
+ if (!count || count > dx_get_limit(entries)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: no count or count > limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
+
p = entries + 1;
q = entries + count - 1;
while (p <= q)
if (!(bh = ext3_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
- assert (dx_get_limit(entries) == dx_node_limit (dir));
+ if (dx_get_limit(entries) != dx_node_limit (dir)) {
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != node limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
frame++;
+ frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
frame--;
}
fail:
+ if (*err == ERR_BAD_DX_DIR)
+ ext3_warning(dir->i_sb, __FUNCTION__,
+ "Corrupt dir inode %ld, running e2fsck is "
+ "recommended.", dir->i_ino);
return NULL;
}
* Directory block splitting, compacting
*/
+/*
+ * Create map of hash values, offsets, and sizes, stored at end of block.
+ * Returns number of entries mapped.
+ */
static int dx_make_map (struct ext3_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
ext3fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
- map_tail->offs = (u32) ((char *) de - base);
+ map_tail->offs = (u16) ((char *) de - base);
+ map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
return count;
}
+/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
}
#ifdef CONFIG_EXT3_INDEX
+/*
+ * Move count entries from end of map between two memory locations.
+ * Returns pointer to last entry moved.
+ */
static struct ext3_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
return (struct ext3_dir_entry_2 *) (to - rec_len);
}
+/*
+ * Compact each dir entry in the range to the minimal rec_len.
+ * Returns pointer to last entry in range.
+ */
static struct ext3_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext3_dir_entry_2 *next, *to, *prev, *de = (struct ext3_dir_entry_2 *) base;
return prev;
}
+/*
+ * Split a full leaf block to make room for a new dir entry.
+ * Allocate a new block, and move entries so that they are approx. equally full.
+ * Returns pointer to de in block into which the new entry will be inserted.
+ */
static struct ext3_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
- unsigned split;
+ unsigned split, move, size, i;
struct ext3_dir_entry_2 *de = NULL, *de2;
int err = 0;
count = dx_make_map ((struct ext3_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
- split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
+ /* Split the existing block in the middle, size-wise */
+ size = 0;
+ move = 0;
+ for (i = count-1; i >= 0; i--) {
+ /* is more than half of this entry in 2nd half of the block? */
+ if (size + map[i].size/2 > blocksize/2)
+ break;
+ size += map[i].size;
+ move++;
+ }
+ /* map index at which we will split */
+ split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",
struct dx_map_entry
{
u32 hash;
- u32 offs;
+ u16 offs;
+ u16 size;
};
#ifdef CONFIG_EXT4_INDEX
entries = (struct dx_entry *) (((char *)&root->info) +
root->info.info_length);
- assert(dx_get_limit(entries) == dx_root_limit(dir,
- root->info.info_length));
+
+ if (dx_get_limit(entries) != dx_root_limit(dir,
+ root->info.info_length)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != root limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail;
+ }
+
dxtrace (printk("Look up %x", hash));
while (1)
{
count = dx_get_count(entries);
- assert (count && count <= dx_get_limit(entries));
+ if (!count || count > dx_get_limit(entries)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: no count or count > limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
+
p = entries + 1;
q = entries + count - 1;
while (p <= q)
if (!(bh = ext4_bread (NULL,dir, dx_get_block(at), 0, err)))
goto fail2;
at = entries = ((struct dx_node *) bh->b_data)->entries;
- assert (dx_get_limit(entries) == dx_node_limit (dir));
+ if (dx_get_limit(entries) != dx_node_limit (dir)) {
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "dx entry: limit != node limit");
+ brelse(bh);
+ *err = ERR_BAD_DX_DIR;
+ goto fail2;
+ }
frame++;
+ frame->bh = NULL;
}
fail2:
while (frame >= frame_in) {
frame--;
}
fail:
+ if (*err == ERR_BAD_DX_DIR)
+ ext4_warning(dir->i_sb, __FUNCTION__,
+ "Corrupt dir inode %ld, running e2fsck is "
+ "recommended.", dir->i_ino);
return NULL;
}
* Directory block splitting, compacting
*/
+/*
+ * Create map of hash values, offsets, and sizes, stored at end of block.
+ * Returns number of entries mapped.
+ */
static int dx_make_map (struct ext4_dir_entry_2 *de, int size,
struct dx_hash_info *hinfo, struct dx_map_entry *map_tail)
{
ext4fs_dirhash(de->name, de->name_len, &h);
map_tail--;
map_tail->hash = h.hash;
- map_tail->offs = (u32) ((char *) de - base);
+ map_tail->offs = (u16) ((char *) de - base);
+ map_tail->size = le16_to_cpu(de->rec_len);
count++;
cond_resched();
}
return count;
}
+/* Sort map by hash value */
static void dx_sort_map (struct dx_map_entry *map, unsigned count)
{
struct dx_map_entry *p, *q, *top = map + count - 1;
}
#ifdef CONFIG_EXT4_INDEX
+/*
+ * Move count entries from end of map between two memory locations.
+ * Returns pointer to last entry moved.
+ */
static struct ext4_dir_entry_2 *
dx_move_dirents(char *from, char *to, struct dx_map_entry *map, int count)
{
return (struct ext4_dir_entry_2 *) (to - rec_len);
}
+/*
+ * Compact each dir entry in the range to the minimal rec_len.
+ * Returns pointer to last entry in range.
+ */
static struct ext4_dir_entry_2* dx_pack_dirents(char *base, int size)
{
struct ext4_dir_entry_2 *next, *to, *prev, *de = (struct ext4_dir_entry_2 *) base;
return prev;
}
+/*
+ * Split a full leaf block to make room for a new dir entry.
+ * Allocate a new block, and move entries so that they are approx. equally full.
+ * Returns pointer to de in block into which the new entry will be inserted.
+ */
static struct ext4_dir_entry_2 *do_split(handle_t *handle, struct inode *dir,
struct buffer_head **bh,struct dx_frame *frame,
struct dx_hash_info *hinfo, int *error)
u32 hash2;
struct dx_map_entry *map;
char *data1 = (*bh)->b_data, *data2;
- unsigned split;
+ unsigned split, move, size, i;
struct ext4_dir_entry_2 *de = NULL, *de2;
int err = 0;
count = dx_make_map ((struct ext4_dir_entry_2 *) data1,
blocksize, hinfo, map);
map -= count;
- split = count/2; // need to adjust to actual middle
dx_sort_map (map, count);
+ /* Split the existing block in the middle, size-wise */
+ size = 0;
+ move = 0;
+ for (i = count-1; i >= 0; i--) {
+ /* is more than half of this entry in 2nd half of the block? */
+ if (size + map[i].size/2 > blocksize/2)
+ break;
+ size += map[i].size;
+ move++;
+ }
+ /* map index at which we will split */
+ split = count - move;
hash2 = map[split].hash;
continued = hash2 == map[split - 1].hash;
dxtrace(printk("Split block %i at %x, %i/%i\n",
unregister_shrinker(&acl_shrinker);
#ifdef CONFIG_NFS_V4
unregister_filesystem(&nfs4_fs_type);
- nfs_unregister_sysctl();
#endif
+ nfs_unregister_sysctl();
unregister_filesystem(&nfs_fs_type);
}
loff_t user_pos, unsigned user_len)
{
int i;
- unsigned from, to;
+ unsigned from = user_pos & (PAGE_CACHE_SIZE - 1),
+ to = user_pos + user_len;
struct page *tmppage;
- ocfs2_zero_new_buffers(wc->w_target_page, user_pos, user_len);
-
- if (wc->w_large_pages) {
- from = wc->w_target_from;
- to = wc->w_target_to;
- } else {
- from = 0;
- to = PAGE_CACHE_SIZE;
- }
+ ocfs2_zero_new_buffers(wc->w_target_page, from, to);
for(i = 0; i < wc->w_num_pages; i++) {
tmppage = wc->w_pages[i];
map_from = cluster_start;
map_to = cluster_end;
}
-
- wc->w_target_from = map_from;
- wc->w_target_to = map_to;
} else {
/*
* If we haven't allocated the new page yet, we
loff_t pos, unsigned len)
{
int ret, i;
+ loff_t cluster_off;
+ unsigned int local_len = len;
struct ocfs2_write_cluster_desc *desc;
+ struct ocfs2_super *osb = OCFS2_SB(mapping->host->i_sb);
for (i = 0; i < wc->w_clen; i++) {
desc = &wc->w_desc[i];
+ /*
+ * We have to make sure that the total write passed in
+ * doesn't extend past a single cluster.
+ */
+ local_len = len;
+ cluster_off = pos & (osb->s_clustersize - 1);
+ if ((cluster_off + local_len) > osb->s_clustersize)
+ local_len = osb->s_clustersize - cluster_off;
+
ret = ocfs2_write_cluster(mapping, desc->c_phys,
desc->c_unwritten, data_ac, meta_ac,
- wc, desc->c_cpos, pos, len);
+ wc, desc->c_cpos, pos, local_len);
if (ret) {
mlog_errno(ret);
goto out;
}
+
+ len -= local_len;
+ pos += local_len;
}
ret = 0;
goto leave;
}
- status = ocfs2_claim_clusters(osb, handle, data_ac, 1,
- &bit_off, &num_bits);
+ status = __ocfs2_claim_clusters(osb, handle, data_ac, 1,
+ clusters_to_add, &bit_off, &num_bits);
if (status < 0) {
if (status != -ENOSPC)
mlog_errno(status);
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
- u32 min_bits,
+ u32 bits_wanted,
u32 *bit_off,
u32 *num_bits)
{
int status, start;
struct inode *local_alloc_inode;
- u32 bits_wanted;
void *bitmap;
struct ocfs2_dinode *alloc;
struct ocfs2_local_alloc *la;
mlog_entry_void();
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL);
- bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
local_alloc_inode = ac->ac_inode;
alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data;
la = OCFS2_LOCAL_ALLOC(alloc);
int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb,
handle_t *handle,
struct ocfs2_alloc_context *ac,
- u32 min_bits,
+ u32 bits_wanted,
u32 *bit_off,
u32 *num_bits);
* contig. allocation, set to '1' to indicate we can deal with extents
* of any size.
*/
-int ocfs2_claim_clusters(struct ocfs2_super *osb,
- handle_t *handle,
- struct ocfs2_alloc_context *ac,
- u32 min_clusters,
- u32 *cluster_start,
- u32 *num_clusters)
+int __ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 max_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters)
{
int status;
- unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
+ unsigned int bits_wanted = max_clusters;
u64 bg_blkno = 0;
u16 bg_bit_off;
mlog_entry_void();
- BUG_ON(!ac);
BUG_ON(ac->ac_bits_given >= ac->ac_bits_wanted);
BUG_ON(ac->ac_which != OCFS2_AC_USE_LOCAL
return status;
}
+int ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters)
+{
+ unsigned int bits_wanted = ac->ac_bits_wanted - ac->ac_bits_given;
+
+ return __ocfs2_claim_clusters(osb, handle, ac, min_clusters,
+ bits_wanted, cluster_start, num_clusters);
+}
+
static inline int ocfs2_block_group_clear_bits(handle_t *handle,
struct inode *alloc_inode,
struct ocfs2_group_desc *bg,
u32 min_clusters,
u32 *cluster_start,
u32 *num_clusters);
+/*
+ * Use this variant of ocfs2_claim_clusters to specify a maxiumum
+ * number of clusters smaller than the allocation reserved.
+ */
+int __ocfs2_claim_clusters(struct ocfs2_super *osb,
+ handle_t *handle,
+ struct ocfs2_alloc_context *ac,
+ u32 min_clusters,
+ u32 max_clusters,
+ u32 *cluster_start,
+ u32 *num_clusters);
int ocfs2_free_suballoc_bits(handle_t *handle,
struct inode *alloc_inode,
{
struct ocfs2_msg_hdr v_hdr;
__be32 v_reserved1;
-};
+} __attribute__ ((packed));
/* Responses are given these values to maintain backwards
* compatibility with older ocfs2 versions */
{
struct ocfs2_msg_hdr r_hdr;
__be32 r_response;
-};
+} __attribute__ ((packed));
struct ocfs2_vote_work {
struct list_head w_list;
* Now using anonymous inode source.
* Thanks to Oleg Nesterov for useful code review and suggestions.
* More comments and suggestions from Arnd Bergmann.
- * Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
+ * Sat May 19, 2007: Davi E. M. Arnaut <davi@haxent.com.br>
* Retrieve multiple signals with one read() call
+ * Sun Jul 15, 2007: Davide Libenzi <davidel@xmailserver.org>
+ * Attach to the sighand only during read() and poll().
*/
#include <linux/file.h>
#include <linux/signalfd.h>
struct signalfd_ctx {
- struct list_head lnk;
- wait_queue_head_t wqh;
sigset_t sigmask;
- struct task_struct *tsk;
};
-struct signalfd_lockctx {
- struct task_struct *tsk;
- unsigned long flags;
-};
-
-/*
- * Tries to acquire the sighand lock. We do not increment the sighand
- * use count, and we do not even pin the task struct, so we need to
- * do it inside an RCU read lock, and we must be prepared for the
- * ctx->tsk going to NULL (in signalfd_deliver()), and for the sighand
- * being detached. We return 0 if the sighand has been detached, or
- * 1 if we were able to pin the sighand lock.
- */
-static int signalfd_lock(struct signalfd_ctx *ctx, struct signalfd_lockctx *lk)
-{
- struct sighand_struct *sighand = NULL;
-
- rcu_read_lock();
- lk->tsk = rcu_dereference(ctx->tsk);
- if (likely(lk->tsk != NULL))
- sighand = lock_task_sighand(lk->tsk, &lk->flags);
- rcu_read_unlock();
-
- if (!sighand)
- return 0;
-
- if (!ctx->tsk) {
- unlock_task_sighand(lk->tsk, &lk->flags);
- return 0;
- }
-
- if (lk->tsk->tgid == current->tgid)
- lk->tsk = current;
-
- return 1;
-}
-
-static void signalfd_unlock(struct signalfd_lockctx *lk)
-{
- unlock_task_sighand(lk->tsk, &lk->flags);
-}
-
-/*
- * This must be called with the sighand lock held.
- */
-void signalfd_deliver(struct task_struct *tsk, int sig)
-{
- struct sighand_struct *sighand = tsk->sighand;
- struct signalfd_ctx *ctx, *tmp;
-
- BUG_ON(!sig);
- list_for_each_entry_safe(ctx, tmp, &sighand->signalfd_list, lnk) {
- /*
- * We use a negative signal value as a way to broadcast that the
- * sighand has been orphaned, so that we can notify all the
- * listeners about this. Remember the ctx->sigmask is inverted,
- * so if the user is interested in a signal, that corresponding
- * bit will be zero.
- */
- if (sig < 0) {
- if (ctx->tsk == tsk) {
- ctx->tsk = NULL;
- list_del_init(&ctx->lnk);
- wake_up(&ctx->wqh);
- }
- } else {
- if (!sigismember(&ctx->sigmask, sig))
- wake_up(&ctx->wqh);
- }
- }
-}
-
-static void signalfd_cleanup(struct signalfd_ctx *ctx)
-{
- struct signalfd_lockctx lk;
-
- /*
- * This is tricky. If the sighand is gone, we do not need to remove
- * context from the list, the list itself won't be there anymore.
- */
- if (signalfd_lock(ctx, &lk)) {
- list_del(&ctx->lnk);
- signalfd_unlock(&lk);
- }
- kfree(ctx);
-}
-
static int signalfd_release(struct inode *inode, struct file *file)
{
- signalfd_cleanup(file->private_data);
+ kfree(file->private_data);
return 0;
}
{
struct signalfd_ctx *ctx = file->private_data;
unsigned int events = 0;
- struct signalfd_lockctx lk;
- poll_wait(file, &ctx->wqh, wait);
+ poll_wait(file, ¤t->sighand->signalfd_wqh, wait);
- /*
- * Let the caller get a POLLIN in this case, ala socket recv() when
- * the peer disconnects.
- */
- if (signalfd_lock(ctx, &lk)) {
- if ((lk.tsk == current &&
- next_signal(&lk.tsk->pending, &ctx->sigmask) > 0) ||
- next_signal(&lk.tsk->signal->shared_pending,
- &ctx->sigmask) > 0)
- events |= POLLIN;
- signalfd_unlock(&lk);
- } else
+ spin_lock_irq(¤t->sighand->siglock);
+ if (next_signal(¤t->pending, &ctx->sigmask) ||
+ next_signal(¤t->signal->shared_pending,
+ &ctx->sigmask))
events |= POLLIN;
+ spin_unlock_irq(¤t->sighand->siglock);
return events;
}
int nonblock)
{
ssize_t ret;
- struct signalfd_lockctx lk;
DECLARE_WAITQUEUE(wait, current);
- if (!signalfd_lock(ctx, &lk))
- return 0;
-
- ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
+ spin_lock_irq(¤t->sighand->siglock);
+ ret = dequeue_signal(current, &ctx->sigmask, info);
switch (ret) {
case 0:
if (!nonblock)
break;
ret = -EAGAIN;
default:
- signalfd_unlock(&lk);
+ spin_unlock_irq(¤t->sighand->siglock);
return ret;
}
- add_wait_queue(&ctx->wqh, &wait);
+ add_wait_queue(¤t->sighand->signalfd_wqh, &wait);
for (;;) {
set_current_state(TASK_INTERRUPTIBLE);
- ret = dequeue_signal(lk.tsk, &ctx->sigmask, info);
- signalfd_unlock(&lk);
+ ret = dequeue_signal(current, &ctx->sigmask, info);
if (ret != 0)
break;
if (signal_pending(current)) {
ret = -ERESTARTSYS;
break;
}
+ spin_unlock_irq(¤t->sighand->siglock);
schedule();
- ret = signalfd_lock(ctx, &lk);
- if (unlikely(!ret)) {
- /*
- * Let the caller read zero byte, ala socket
- * recv() when the peer disconnect. This test
- * must be done before doing a dequeue_signal(),
- * because if the sighand has been orphaned,
- * the dequeue_signal() call is going to crash
- * because ->sighand will be long gone.
- */
- break;
- }
+ spin_lock_irq(¤t->sighand->siglock);
}
+ spin_unlock_irq(¤t->sighand->siglock);
- remove_wait_queue(&ctx->wqh, &wait);
+ remove_wait_queue(¤t->sighand->signalfd_wqh, &wait);
__set_current_state(TASK_RUNNING);
return ret;
}
/*
- * Returns either the size of a "struct signalfd_siginfo", or zero if the
- * sighand we are attached to, has been orphaned. The "count" parameter
- * must be at least the size of a "struct signalfd_siginfo".
+ * Returns a multiple of the size of a "struct signalfd_siginfo", or a negative
+ * error code. The "count" parameter must be at least the size of a
+ * "struct signalfd_siginfo".
*/
static ssize_t signalfd_read(struct file *file, char __user *buf, size_t count,
loff_t *ppos)
return -EINVAL;
siginfo = (struct signalfd_siginfo __user *) buf;
-
do {
ret = signalfd_dequeue(ctx, &info, nonblock);
if (unlikely(ret <= 0))
nonblock = 1;
} while (--count);
- return total ? total : ret;
+ return total ? total: ret;
}
static const struct file_operations signalfd_fops = {
.read = signalfd_read,
};
-/*
- * Create a file descriptor that is associated with our signal
- * state. We can pass it around to others if we want to, but
- * it will always be _our_ signal state.
- */
asmlinkage long sys_signalfd(int ufd, sigset_t __user *user_mask, size_t sizemask)
{
int error;
sigset_t sigmask;
struct signalfd_ctx *ctx;
- struct sighand_struct *sighand;
struct file *file;
struct inode *inode;
- struct signalfd_lockctx lk;
if (sizemask != sizeof(sigset_t) ||
copy_from_user(&sigmask, user_mask, sizeof(sigmask)))
if (!ctx)
return -ENOMEM;
- init_waitqueue_head(&ctx->wqh);
ctx->sigmask = sigmask;
- ctx->tsk = current->group_leader;
-
- sighand = current->sighand;
- /*
- * Add this fd to the list of signal listeners.
- */
- spin_lock_irq(&sighand->siglock);
- list_add_tail(&ctx->lnk, &sighand->signalfd_list);
- spin_unlock_irq(&sighand->siglock);
/*
* When we call this, the initialization must be complete, since
fput(file);
return -EINVAL;
}
- /*
- * We need to be prepared of the fact that the sighand this fd
- * is attached to, has been detched. In that case signalfd_lock()
- * will return 0, and we'll just skip setting the new mask.
- */
- if (signalfd_lock(ctx, &lk)) {
- ctx->sigmask = sigmask;
- signalfd_unlock(&lk);
- }
- wake_up(&ctx->wqh);
+ spin_lock_irq(¤t->sighand->siglock);
+ ctx->sigmask = sigmask;
+ spin_unlock_irq(¤t->sighand->siglock);
+
+ wake_up(¤t->sighand->signalfd_wqh);
fput(file);
}
return ufd;
err_fdalloc:
- signalfd_cleanup(ctx);
+ kfree(ctx);
return error;
}
/*
- * Copyright (C) 2004 Maciej W. Rozycki
+ * Copyright (C) 2004, 2007 Maciej W. Rozycki
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
#define _ASM_COMPILER_H
#if __GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4)
+#define GCC_IMM_ASM "n"
#define GCC_REG_ACCUM "$0"
#else
+#define GCC_IMM_ASM "rn"
#define GCC_REG_ACCUM "accum"
#endif
}
#endif /* !CONFIG_PPC64 */
+static inline u64 get_tb_or_rtc(void)
+{
+ return __USE_RTC() ? get_rtc() : get_tb();
+}
+
static inline void set_tb(unsigned int upper, unsigned int lower)
{
mtspr(SPRN_TBWL, 0);
#include <asm/pda.h>
#include <linux/threads.h>
#include <linux/mm.h>
-#include <linux/quicklist.h>
-
-#define QUICK_PGD 0 /* We preserve special mappings over free */
-#define QUICK_PT 1 /* Other page table pages that are zero on free */
#define pmd_populate_kernel(mm, pmd, pte) \
set_pmd(pmd, __pmd(_PAGE_TABLE | __pa(pte)))
static inline void pmd_free(pmd_t *pmd)
{
BUG_ON((unsigned long)pmd & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pmd);
+ free_page((unsigned long)pmd);
}
static inline pmd_t *pmd_alloc_one (struct mm_struct *mm, unsigned long addr)
{
- return (pmd_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pmd_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr)
{
- return (pud_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pud_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline void pud_free (pud_t *pud)
{
BUG_ON((unsigned long)pud & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pud);
+ free_page((unsigned long)pud);
}
static inline void pgd_list_add(pgd_t *pgd)
spin_unlock(&pgd_lock);
}
-static inline void pgd_ctor(void *x)
+static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
unsigned boundary;
- pgd_t *pgd = x;
- struct page *page = virt_to_page(pgd);
-
+ pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT);
+ if (!pgd)
+ return NULL;
+ pgd_list_add(pgd);
/*
* Copy kernel pointers in from init.
+ * Could keep a freelist or slab cache of those because the kernel
+ * part never changes.
*/
boundary = pgd_index(__PAGE_OFFSET);
+ memset(pgd, 0, boundary * sizeof(pgd_t));
memcpy(pgd + boundary,
- init_level4_pgt + boundary,
- (PTRS_PER_PGD - boundary) * sizeof(pgd_t));
-
- spin_lock(&pgd_lock);
- list_add(&page->lru, &pgd_list);
- spin_unlock(&pgd_lock);
-}
-
-static inline void pgd_dtor(void *x)
-{
- pgd_t *pgd = x;
- struct page *page = virt_to_page(pgd);
-
- spin_lock(&pgd_lock);
- list_del(&page->lru);
- spin_unlock(&pgd_lock);
-}
-
-static inline pgd_t *pgd_alloc(struct mm_struct *mm)
-{
- pgd_t *pgd = (pgd_t *)quicklist_alloc(QUICK_PGD,
- GFP_KERNEL|__GFP_REPEAT, pgd_ctor);
+ init_level4_pgt + boundary,
+ (PTRS_PER_PGD - boundary) * sizeof(pgd_t));
return pgd;
}
static inline void pgd_free(pgd_t *pgd)
{
BUG_ON((unsigned long)pgd & (PAGE_SIZE-1));
- quicklist_free(QUICK_PGD, pgd_dtor, pgd);
+ pgd_list_del(pgd);
+ free_page((unsigned long)pgd);
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
- return (pte_t *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
+ return (pte_t *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
}
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
- void *p = (void *)quicklist_alloc(QUICK_PT, GFP_KERNEL|__GFP_REPEAT, NULL);
-
+ void *p = (void *)get_zeroed_page(GFP_KERNEL|__GFP_REPEAT);
if (!p)
return NULL;
return virt_to_page(p);
static inline void pte_free_kernel(pte_t *pte)
{
BUG_ON((unsigned long)pte & (PAGE_SIZE-1));
- quicklist_free(QUICK_PT, NULL, pte);
+ free_page((unsigned long)pte);
}
static inline void pte_free(struct page *pte)
{
- quicklist_free_page(QUICK_PT, NULL, pte);
-}
+ __free_page(pte);
+}
-#define __pte_free_tlb(tlb,pte) quicklist_free_page(QUICK_PT, NULL,(pte))
+#define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
-#define __pmd_free_tlb(tlb,x) quicklist_free(QUICK_PT, NULL, (x))
-#define __pud_free_tlb(tlb,x) quicklist_free(QUICK_PT, NULL, (x))
+#define __pmd_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
+#define __pud_free_tlb(tlb,x) tlb_remove_page((tlb),virt_to_page(x))
-static inline void check_pgt_cache(void)
-{
- quicklist_trim(QUICK_PGD, pgd_dtor, 25, 16);
- quicklist_trim(QUICK_PT, NULL, 25, 16);
-}
#endif /* _X86_64_PGALLOC_H */
#define HAVE_ARCH_UNMAPPED_AREA
#define pgtable_cache_init() do { } while (0)
+#define check_pgt_cache() do { } while (0)
#define PAGE_AGP PAGE_KERNEL_NOCACHE
#define HAVE_PAGE_AGP 1
.count = ATOMIC_INIT(1), \
.action = { { { .sa_handler = NULL, } }, }, \
.siglock = __SPIN_LOCK_UNLOCKED(sighand.siglock), \
- .signalfd_list = LIST_HEAD_INIT(sighand.signalfd_list), \
+ .signalfd_wqh = __WAIT_QUEUE_HEAD_INITIALIZER(sighand.signalfd_wqh), \
}
extern struct group_info init_groups;
extern struct mempolicy default_policy;
extern struct zonelist *huge_zonelist(struct vm_area_struct *vma,
- unsigned long addr, gfp_t gfp_flags);
+ unsigned long addr, gfp_t gfp_flags, struct mempolicy **mpol);
extern unsigned slab_node(struct mempolicy *policy);
extern enum zone_type policy_zone;
#define set_cpuset_being_rebound(x) do {} while (0)
static inline struct zonelist *huge_zonelist(struct vm_area_struct *vma,
- unsigned long addr, gfp_t gfp_flags)
+ unsigned long addr, gfp_t gfp_flags, struct mempolicy **mpol)
{
return NODE_DATA(0)->node_zonelists + gfp_zone(gfp_flags);
}
atomic_t count;
struct k_sigaction action[_NSIG];
spinlock_t siglock;
- struct list_head signalfd_list;
+ wait_queue_head_t signalfd_wqh;
};
struct pacct_struct {
#endif
/* Hash table maintenance information */
- struct list_head uidhash_list;
+ struct hlist_node uidhash_node;
uid_t uid;
};
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_compat_yield;
extern unsigned int sysctl_sched_child_runs_first;
extern unsigned int sysctl_sched_features;
}
extern void free_uid(struct user_struct *);
extern void switch_uid(struct user_struct *);
+extern void release_uids(struct user_namespace *ns);
#include <asm/current.h>
#ifdef CONFIG_SIGNALFD
/*
- * Deliver the signal to listening signalfd. This must be called
- * with the sighand lock held. Same are the following that end up
- * calling signalfd_deliver().
- */
-void signalfd_deliver(struct task_struct *tsk, int sig);
-
-/*
- * No need to fall inside signalfd_deliver() if no signal listeners
- * are available.
+ * Deliver the signal to listening signalfd.
*/
static inline void signalfd_notify(struct task_struct *tsk, int sig)
{
- if (unlikely(!list_empty(&tsk->sighand->signalfd_list)))
- signalfd_deliver(tsk, sig);
-}
-
-/*
- * The signal -1 is used to notify the signalfd that the sighand
- * is on its way to be detached.
- */
-static inline void signalfd_detach_locked(struct task_struct *tsk)
-{
- if (unlikely(!list_empty(&tsk->sighand->signalfd_list)))
- signalfd_deliver(tsk, -1);
-}
-
-static inline void signalfd_detach(struct task_struct *tsk)
-{
- struct sighand_struct *sighand = tsk->sighand;
-
- if (unlikely(!list_empty(&sighand->signalfd_list))) {
- spin_lock_irq(&sighand->siglock);
- signalfd_deliver(tsk, -1);
- spin_unlock_irq(&sighand->siglock);
- }
+ if (unlikely(waitqueue_active(&tsk->sighand->signalfd_wqh)))
+ wake_up(&tsk->sighand->signalfd_wqh);
}
#else /* CONFIG_SIGNALFD */
-#define signalfd_deliver(t, s) do { } while (0)
-#define signalfd_notify(t, s) do { } while (0)
-#define signalfd_detach_locked(t) do { } while (0)
-#define signalfd_detach(t) do { } while (0)
+static inline void signalfd_notify(struct task_struct *tsk, int sig) { }
#endif /* CONFIG_SIGNALFD */
struct user_namespace {
struct kref kref;
- struct list_head uidhash_table[UIDHASH_SZ];
+ struct hlist_head uidhash_table[UIDHASH_SZ];
struct user_struct *root_user;
};
config TIMERFD
bool "Enable timerfd() system call" if EMBEDDED
select ANON_INODES
+ depends on BROKEN
default y
help
Enable the timerfd() system call that allows to receive timer
pid = kernel_thread(do_linuxrc, "/linuxrc", SIGCHLD);
if (pid > 0)
- while (pid != sys_wait4(-1, NULL, 0, NULL))
+ while (pid != sys_wait4(-1, NULL, 0, NULL)) {
+ try_to_freeze();
yield();
+ }
/* move initrd to rootfs' /old */
sys_fchdir(old_fd);
#include <linux/pid_namespace.h>
#include <linux/ptrace.h>
#include <linux/profile.h>
-#include <linux/signalfd.h>
#include <linux/mount.h>
#include <linux/proc_fs.h>
#include <linux/kthread.h>
sighand = rcu_dereference(tsk->sighand);
spin_lock(&sighand->siglock);
- /*
- * Notify that this sighand has been detached. This must
- * be called with the tsk->sighand lock held. Also, this
- * access tsk->sighand internally, so it must be called
- * before tsk->sighand is reset.
- */
- signalfd_detach_locked(tsk);
-
posix_cpu_timers_exit(tsk);
if (atomic_dec_and_test(&sig->count))
posix_cpu_timers_exit_group(tsk);
struct sighand_struct *sighand = data;
spin_lock_init(&sighand->siglock);
- INIT_LIST_HEAD(&sighand->signalfd_list);
+ init_waitqueue_head(&sighand->signalfd_wqh);
}
void __init proc_caches_init(void)
p->prio = effective_prio(p);
+ if (rt_prio(p->prio))
+ p->sched_class = &rt_sched_class;
+ else
+ p->sched_class = &fair_sched_class;
+
if (!p->sched_class->task_new || !sysctl_sched_child_runs_first ||
(clone_flags & CLONE_VM) || task_cpu(p) != this_cpu ||
!current->se.on_rq) {
struct rq *rq = this_rq_lock();
schedstat_inc(rq, yld_cnt);
- if (unlikely(rq->nr_running == 1))
- schedstat_inc(rq, yld_act_empty);
- else
- current->sched_class->yield_task(rq, current);
+ current->sched_class->yield_task(rq, current);
/*
* Since we are going to call schedule() anyway, there's
*/
unsigned int sysctl_sched_min_granularity __read_mostly = 2000000ULL;
+/*
+ * sys_sched_yield() compat mode
+ *
+ * This option switches the agressive yield implementation of the
+ * old scheduler back on.
+ */
+unsigned int __read_mostly sysctl_sched_compat_yield;
+
/*
* SCHED_BATCH wake-up granularity.
* (default: 25 msec, units: nanoseconds)
}
/*
- * sched_yield() support is very simple - we dequeue and enqueue
+ * sched_yield() support is very simple - we dequeue and enqueue.
+ *
+ * If compat_yield is turned on then we requeue to the end of the tree.
*/
static void yield_task_fair(struct rq *rq, struct task_struct *p)
{
struct cfs_rq *cfs_rq = task_cfs_rq(p);
+ struct rb_node **link = &cfs_rq->tasks_timeline.rb_node;
+ struct sched_entity *rightmost, *se = &p->se;
+ struct rb_node *parent;
- __update_rq_clock(rq);
/*
- * Dequeue and enqueue the task to update its
- * position within the tree:
+ * Are we the only task in the tree?
+ */
+ if (unlikely(cfs_rq->nr_running == 1))
+ return;
+
+ if (likely(!sysctl_sched_compat_yield)) {
+ __update_rq_clock(rq);
+ /*
+ * Dequeue and enqueue the task to update its
+ * position within the tree:
+ */
+ dequeue_entity(cfs_rq, &p->se, 0);
+ enqueue_entity(cfs_rq, &p->se, 0);
+
+ return;
+ }
+ /*
+ * Find the rightmost entry in the rbtree:
*/
- dequeue_entity(cfs_rq, &p->se, 0);
- enqueue_entity(cfs_rq, &p->se, 0);
+ do {
+ parent = *link;
+ link = &parent->rb_right;
+ } while (*link);
+
+ rightmost = rb_entry(parent, struct sched_entity, run_node);
+ /*
+ * Already in the rightmost position?
+ */
+ if (unlikely(rightmost == se))
+ return;
+
+ /*
+ * Minimally necessary key value to be last in the tree:
+ */
+ se->fair_key = rightmost->fair_key + 1;
+
+ if (cfs_rq->rb_leftmost == &se->run_node)
+ cfs_rq->rb_leftmost = rb_next(&se->run_node);
+ /*
+ * Relink the task to the rightmost position:
+ */
+ rb_erase(&se->run_node, &cfs_rq->tasks_timeline);
+ rb_link_node(&se->run_node, parent, link);
+ rb_insert_color(&se->run_node, &cfs_rq->tasks_timeline);
}
/*
/* We only dequeue private signals from ourselves, we don't let
* signalfd steal them
*/
- if (likely(tsk == current))
- signr = __dequeue_signal(&tsk->pending, mask, info);
+ signr = __dequeue_signal(&tsk->pending, mask, info);
if (!signr) {
signr = __dequeue_signal(&tsk->signal->shared_pending,
mask, info);
}
}
}
- if (likely(tsk == current))
- recalc_sigpending();
+ recalc_sigpending();
if (signr && unlikely(sig_kernel_stop(signr))) {
/*
* Set a marker that we have dequeued a stop signal. Our
if (!(tsk->signal->flags & SIGNAL_GROUP_EXIT))
tsk->signal->flags |= SIGNAL_STOP_DEQUEUED;
}
- if (signr && likely(tsk == current) &&
+ if (signr &&
((info->si_code & __SI_MASK) == __SI_TIMER) &&
info->si_sys_private){
/*
.proc_handler = &proc_dointvec,
},
#endif
+ {
+ .ctl_name = CTL_UNNUMBERED,
+ .procname = "sched_compat_yield",
+ .data = &sysctl_sched_compat_yield,
+ .maxlen = sizeof(unsigned int),
+ .mode = 0644,
+ .proc_handler = &proc_dointvec,
+ },
#ifdef CONFIG_PROVE_LOCKING
{
.ctl_name = CTL_UNNUMBERED,
/*
* These routines must be called with the uidhash spinlock held!
*/
-static inline void uid_hash_insert(struct user_struct *up, struct list_head *hashent)
+static inline void uid_hash_insert(struct user_struct *up, struct hlist_head *hashent)
{
- list_add(&up->uidhash_list, hashent);
+ hlist_add_head(&up->uidhash_node, hashent);
}
static inline void uid_hash_remove(struct user_struct *up)
{
- list_del(&up->uidhash_list);
+ hlist_del_init(&up->uidhash_node);
}
-static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent)
+static inline struct user_struct *uid_hash_find(uid_t uid, struct hlist_head *hashent)
{
- struct list_head *up;
-
- list_for_each(up, hashent) {
- struct user_struct *user;
-
- user = list_entry(up, struct user_struct, uidhash_list);
+ struct user_struct *user;
+ struct hlist_node *h;
+ hlist_for_each_entry(user, h, hashent, uidhash_node) {
if(user->uid == uid) {
atomic_inc(&user->__count);
return user;
struct user_struct * alloc_uid(struct user_namespace *ns, uid_t uid)
{
- struct list_head *hashent = uidhashentry(ns, uid);
+ struct hlist_head *hashent = uidhashentry(ns, uid);
struct user_struct *up;
spin_lock_irq(&uidhash_lock);
suid_keys(current);
}
+void release_uids(struct user_namespace *ns)
+{
+ int i;
+ unsigned long flags;
+ struct hlist_head *head;
+ struct hlist_node *nd;
+
+ spin_lock_irqsave(&uidhash_lock, flags);
+ /*
+ * collapse the chains so that the user_struct-s will
+ * be still alive, but not in hashes. subsequent free_uid()
+ * will free them.
+ */
+ for (i = 0; i < UIDHASH_SZ; i++) {
+ head = ns->uidhash_table + i;
+ while (!hlist_empty(head)) {
+ nd = head->first;
+ hlist_del_init(nd);
+ }
+ }
+ spin_unlock_irqrestore(&uidhash_lock, flags);
+
+ free_uid(ns->root_user);
+}
static int __init uid_cache_init(void)
{
0, SLAB_HWCACHE_ALIGN|SLAB_PANIC, NULL);
for(n = 0; n < UIDHASH_SZ; ++n)
- INIT_LIST_HEAD(init_user_ns.uidhash_table + n);
+ INIT_HLIST_HEAD(init_user_ns.uidhash_table + n);
/* Insert the root user immediately (init already runs as root) */
spin_lock_irq(&uidhash_lock);
kref_init(&ns->kref);
for (n = 0; n < UIDHASH_SZ; ++n)
- INIT_LIST_HEAD(ns->uidhash_table + n);
+ INIT_HLIST_HEAD(ns->uidhash_table + n);
/* Insert new root user. */
ns->root_user = alloc_uid(ns, 0);
struct user_namespace *ns;
ns = container_of(kref, struct user_namespace, kref);
- free_uid(ns->root_user);
+ release_uids(ns);
kfree(ns);
}
if (!ns)
return ERR_PTR(-ENOMEM);
+ down_read(&uts_sem);
memcpy(&ns->name, &old_ns->name, sizeof(ns->name));
+ up_read(&uts_sem);
kref_init(&ns->kref);
return ns;
}
{
int nid;
struct page *page = NULL;
+ struct mempolicy *mpol;
struct zonelist *zonelist = huge_zonelist(vma, address,
- htlb_alloc_mask);
+ htlb_alloc_mask, &mpol);
struct zone **z;
for (z = zonelist->zones; *z; z++) {
break;
}
}
+ mpol_free(mpol); /* unref if mpol !NULL */
return page;
}
#endif
-/* Return effective policy for a VMA */
+/*
+ * get_vma_policy(@task, @vma, @addr)
+ * @task - task for fallback if vma policy == default
+ * @vma - virtual memory area whose policy is sought
+ * @addr - address in @vma for shared policy lookup
+ *
+ * Returns effective policy for a VMA at specified address.
+ * Falls back to @task or system default policy, as necessary.
+ * Returned policy has extra reference count if shared, vma,
+ * or some other task's policy [show_numa_maps() can pass
+ * @task != current]. It is the caller's responsibility to
+ * free the reference in these cases.
+ */
static struct mempolicy * get_vma_policy(struct task_struct *task,
struct vm_area_struct *vma, unsigned long addr)
{
struct mempolicy *pol = task->mempolicy;
+ int shared_pol = 0;
if (vma) {
- if (vma->vm_ops && vma->vm_ops->get_policy)
+ if (vma->vm_ops && vma->vm_ops->get_policy) {
pol = vma->vm_ops->get_policy(vma, addr);
- else if (vma->vm_policy &&
+ shared_pol = 1; /* if pol non-NULL, add ref below */
+ } else if (vma->vm_policy &&
vma->vm_policy->policy != MPOL_DEFAULT)
pol = vma->vm_policy;
}
if (!pol)
pol = &default_policy;
+ else if (!shared_pol && pol != current->mempolicy)
+ mpol_get(pol); /* vma or other task's policy */
return pol;
}
}
#ifdef CONFIG_HUGETLBFS
-/* Return a zonelist suitable for a huge page allocation. */
+/*
+ * huge_zonelist(@vma, @addr, @gfp_flags, @mpol)
+ * @vma = virtual memory area whose policy is sought
+ * @addr = address in @vma for shared policy lookup and interleave policy
+ * @gfp_flags = for requested zone
+ * @mpol = pointer to mempolicy pointer for reference counted 'BIND policy
+ *
+ * Returns a zonelist suitable for a huge page allocation.
+ * If the effective policy is 'BIND, returns pointer to policy's zonelist.
+ * If it is also a policy for which get_vma_policy() returns an extra
+ * reference, we must hold that reference until after allocation.
+ * In that case, return policy via @mpol so hugetlb allocation can drop
+ * the reference. For non-'BIND referenced policies, we can/do drop the
+ * reference here, so the caller doesn't need to know about the special case
+ * for default and current task policy.
+ */
struct zonelist *huge_zonelist(struct vm_area_struct *vma, unsigned long addr,
- gfp_t gfp_flags)
+ gfp_t gfp_flags, struct mempolicy **mpol)
{
struct mempolicy *pol = get_vma_policy(current, vma, addr);
+ struct zonelist *zl;
+ *mpol = NULL; /* probably no unref needed */
if (pol->policy == MPOL_INTERLEAVE) {
unsigned nid;
nid = interleave_nid(pol, vma, addr, HPAGE_SHIFT);
+ __mpol_free(pol); /* finished with pol */
return NODE_DATA(nid)->node_zonelists + gfp_zone(gfp_flags);
}
- return zonelist_policy(GFP_HIGHUSER, pol);
+
+ zl = zonelist_policy(GFP_HIGHUSER, pol);
+ if (unlikely(pol != &default_policy && pol != current->mempolicy)) {
+ if (pol->policy != MPOL_BIND)
+ __mpol_free(pol); /* finished with pol */
+ else
+ *mpol = pol; /* unref needed after allocation */
+ }
+ return zl;
}
#endif
alloc_page_vma(gfp_t gfp, struct vm_area_struct *vma, unsigned long addr)
{
struct mempolicy *pol = get_vma_policy(current, vma, addr);
+ struct zonelist *zl;
cpuset_update_task_memory_state();
nid = interleave_nid(pol, vma, addr, PAGE_SHIFT);
return alloc_page_interleave(gfp, 0, nid);
}
- return __alloc_pages(gfp, 0, zonelist_policy(gfp, pol));
+ zl = zonelist_policy(gfp, pol);
+ if (pol != &default_policy && pol != current->mempolicy) {
+ /*
+ * slow path: ref counted policy -- shared or vma
+ */
+ struct page *page = __alloc_pages(gfp, 0, zl);
+ __mpol_free(pol);
+ return page;
+ }
+ /*
+ * fast path: default or task policy
+ */
+ return __alloc_pages(gfp, 0, zl);
}
/**
struct numa_maps *md;
struct file *file = vma->vm_file;
struct mm_struct *mm = vma->vm_mm;
+ struct mempolicy *pol;
int n;
char buffer[50];
if (!md)
return 0;
- mpol_to_str(buffer, sizeof(buffer),
- get_vma_policy(priv->task, vma, vma->vm_start));
+ pol = get_vma_policy(priv->task, vma, vma->vm_start);
+ mpol_to_str(buffer, sizeof(buffer), pol);
+ /*
+ * unref shared or other task's mempolicy
+ */
+ if (pol != &default_policy && pol != current->mempolicy)
+ __mpol_free(pol);
seq_printf(m, "%08lx %s", vma->vm_start, buffer);
unsigned int qlen; /* number of nlmsgs in skb */
struct sk_buff *skb; /* pre-allocatd skb */
- struct nlmsghdr *lastnlh; /* netlink header of last msg in skb */
struct timer_list timer;
int peer_pid; /* PID of the peer process */
static int
__nfulnl_send(struct nfulnl_instance *inst)
{
- int status;
+ int status = -1;
if (inst->qlen > 1)
- inst->lastnlh->nlmsg_type = NLMSG_DONE;
+ NLMSG_PUT(inst->skb, 0, 0,
+ NLMSG_DONE,
+ sizeof(struct nfgenmsg));
status = nfnetlink_unicast(inst->skb, inst->peer_pid, MSG_DONTWAIT);
if (status < 0) {
inst->qlen = 0;
inst->skb = NULL;
- inst->lastnlh = NULL;
+nlmsg_failure:
return status;
}
}
nlh->nlmsg_len = inst->skb->tail - old_tail;
- inst->lastnlh = nlh;
return 0;
nlmsg_failure:
}
if (inst->qlen >= qthreshold ||
- (inst->skb && size > skb_tailroom(inst->skb))) {
+ (inst->skb && size >
+ skb_tailroom(inst->skb) - sizeof(struct nfgenmsg))) {
/* either the queue len is too high or we don't have
* enough room in the skb left. flush to userspace. */
UDEBUG("flushing old skb\n");
q->tail = x;
}
}
- if (++sch->q.qlen < q->limit-1) {
+ if (++sch->q.qlen <= q->limit) {
sch->bstats.bytes += skb->len;
sch->bstats.packets++;
return 0;
q->tail = x;
}
}
- if (++sch->q.qlen < q->limit - 1) {
+ if (++sch->q.qlen <= q->limit) {
sch->qstats.requeues++;
return 0;
}
q->quantum = ctl->quantum ? : psched_mtu(sch->dev);
q->perturb_period = ctl->perturb_period*HZ;
if (ctl->limit)
- q->limit = min_t(u32, ctl->limit, SFQ_DEPTH);
+ q->limit = min_t(u32, ctl->limit, SFQ_DEPTH - 2);
qlen = sch->q.qlen;
- while (sch->q.qlen >= q->limit-1)
+ while (sch->q.qlen > q->limit)
sfq_drop(sch);
qdisc_tree_decrease_qlen(sch, qlen - sch->q.qlen);
q->dep[i+SFQ_DEPTH].next = i+SFQ_DEPTH;
q->dep[i+SFQ_DEPTH].prev = i+SFQ_DEPTH;
}
- q->limit = SFQ_DEPTH;
+ q->limit = SFQ_DEPTH - 2;
q->max_depth = 0;
q->tail = SFQ_DEPTH;
if (opt == NULL) {
serv->sv_name);
printk(KERN_NOTICE
"%s: last TCP connect from %s\n",
- serv->sv_name, buf);
+ serv->sv_name, __svc_print_addr(sin,
+ buf, sizeof(buf)));
}
/*
* Always select the oldest socket. It's not fair,
}
enum {
+ Opt_error = -1,
Opt_context = 1,
Opt_fscontext = 2,
Opt_defcontext = 4,
{Opt_fscontext, "fscontext=%s"},
{Opt_defcontext, "defcontext=%s"},
{Opt_rootcontext, "rootcontext=%s"},
+ {Opt_error, NULL},
};
#define SEL_MOUNT_FAIL_MSG "SELinux: duplicate or incompatible mount options\n"
projects / mirror_ubuntu-hirsute-kernel.git / commitdiff